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HomeMy WebLinkAboutSEPA E05-016 - CITY OF TUKWILA / PUBLIC WORKS - WATER SYSTEM PLANE05 -016 CITY OF TUKWILA AREA SERVED BY TUKWILA WATER • City of Tukwila Department of Community Development / 6300 Southcenter BI, Suite 100 / Tukwila, WA 98188 / (206)431 -3670 DETERMINATION OF NON - SIGNIFICANCE (DNS) File Number: E05 -016 Applied: 11/03/2005 Issue Date: 12/12/2005 Status: APPROVED Applicant: CITY OF TUKWILA PW Lead Agency: City of Tukwila Description of Proposal: UPDATE OF TUKWILA WATER SYSTEM PLAN. Location of Proposal: Address: 6200 SOUTHCENTER BL TUKW Parcel Number: 3597000282 Section/Township /Range: PORTIONS OF CITY SERVED BY TUKWILA WATER The City has determined that the proposal does not have a probable significant adverse impact on the environment. An environmental impact statement (EIS) is not required under RCW 43.21c.030(2) (c). This decision was made after review of a completed environmental checklist and other information on file with the lead agency. This information is available to the public on request. _ Steve Lancaster, Responsible Official City of Tukwila 6300 Southcenter Blvd Tukwila, WA 98188 (206)431 -3670 Date Any appeal shall be linked to a specific governmental action. The State Environmental Policy Act is not intended to create a cause of action unrelated to a specific governmental action. Appeals of environmental determinations shall be commenced within the time period to appeal the governmental action that is subject to environmental review. (RCW 43.21C.075) doc: DNS E05 -016 Printed: 12 -13 -2005 Dept. Of Community Development City of Tukwila AFFIDAVIT OF DISTRIBUTION Notice of Public Hearing Notice of Public Meeting HEREBY DECLARE THAT :. ?<. Determination of Non - Significance Mitigated Determination of Non- Significance Board of Adjustment Agenda Pkt Determination of Significance & Scoping Notice Board of Appeals Agenda Pkt Planning Commission Agenda Pkt Short Subdivision Agenda Notice of Action Official Notice Notice of Application Shoreline Mgmt Permit FAX To Seattle Times Classifieds Mail: Gail Muller Classifieds PO Box 70 - Seattle WA 98111 Notice of Application for Shoreline Mgmt Permit Other Was mailed to each of the addresses listed on this 1417- year 20 09 P:GINAWYNETTA/FORMS /AFFIDAVIT -MAIL 08/29/003:31 PM Project Name: .�;,, Pv) tit) 41 - 0 Project Number: 1-:77-'1.) c_.—(AL) Mailer's Signature : ILG'� 14. r->/ (,k _., Person requesting mailing: (c 2 t? 1 ( -tv 0) P:GINAWYNETTA/FORMS /AFFIDAVIT -MAIL 08/29/003:31 PM Jam and Smudge Free Printing Use Avery® TEMPLATE 5160® TRUSS' AUSTIN WATER DIST # 125 P O BOX 68147 SEATTLE, WA 98168 K C DEPARTMENT OF NATURAL RESOURCES 201 SOUTH JACKSON, SUITE 600 SEATTLE, WA 98104 -3855 VAL -VUE SEWER DISTRICT P O BOX 69550 SEATTLE, WA 98168 www.avery.com 1- 800 -GO -AVERY 11 IF WA DEPT OF ECOLOGY SEPA REVIEW SECTION P O BOX 47703 OLYMPIA, WA 98504 -7703 RICHARD RODRIGUEZ REGIONAL PLANNER DEPT. OF HEALTH 20435 72ND AVE. SO., SUITE 200, K17 -12 KENT, WA 98032 Dave Monthie Kc/Metro Dept. Of Nat'l. Resources 201 So. Jackson, Suite 700 Seattle, WA 98104 ®0965 ®AU3V DON WICKSTROM CITY OF KENT ENG. DEPT. 220 FOURTH AVE S KENT, WA 98032 Judi GLadston Comp Plan Manager Seattle Public Works PO Box 34018 Seattle, WA 98124 ABDOUL GAFOUR CITY OF RENTON 1055 SO. GRADY WAY RENTON, WA 98055 Matt Everett General Manager Highline Water District PO Box 3867 Kent, WA 98032 AZI3AV-O9-008-6 woriiiane•MMM LA AVERY® 516o® WATER DISTRICT #20 12606 1ST AVE S SEATTLE, WA 98168 PUBLIC WORKS DEPT. CITY OF SEATAC 4800 SO. 188TH ST: SEATAC, WA 98188 -8605 SHERYL SCHEUERMAN SKYWAY WATER & SEWER 11909 RENTON AVE. SO. SEATTLE, WA 98178 Thomas D. Keown P.E. C/0 Highline Water Dist. Construction/Operations Mgr. Po Box 3867 Kent, Wa 98032 ®0965 wege6 al zes!!!3n aplde� a6e4)gs g to a6eunogpue uolssaidwi City of Tukwila Steven M. Mullet, Mayor Department of Public Works James F Morrow, P.E., Director December 13, 2005 Mr. Matt Everett General Manager Highline Water District P.O. Box 3867 Kent, WA 98032 Subject: Comments on Environmental Review of 2005 Water System Plan Update Dear Mr. Everett: The City of Tukwila wishes to thank the District for taking the time to carefully review the City's 2005 Water System Plan SEPA submittal. Yc.ir concerns have been duly noted. Please understand that the Water System Plan Update is a planning level document. Potential annexations to Section 2.2 "Service Area Description" have been listed in previous Comprehensive Planning documents of the City to comply with the statutes of RCW 36.70A for Growth Management (page from 1999 Water Comprehensive Plan attached). The City has worked with the District in the past and will continue to do so if a transfer of service area is appropriate. The 10 year time frame reminds us to take a second look. Neither the Water Supply Plan nor your current franchise precludes or disregards your supply, storage, and transmission capabilities. The Highline customers in Tukwila are well served and as such the City concurred with Highline that the District would serve the Segale La Pianta.project. However, it would be premature to say that this remains as you noted "in perpetuity." It's not easy to forecast the future and many variables make it difficult to accurately predict.a 20 -year planning horizon and what is best for the citizens of Tukwila. Again the City seeks to work with Highline Water District and any concerns you have about systems transfers would first need diligent engineering analysis in coordination with your staff and commissioners. Furthermore the City of Tukwila is a member of the Skyway Coordinated Water System Plan yet we would be willing to address issues within your own critical water supply planning area if deemed necessary. 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 433 -0179 • Fax: 206 - 431 -3665 • • Mr. Matt Everett Page 2 December 13, 2005 Your final comments regarding storage and boundaries are not SEPA issues and were addressed in our response letter to you of April 11, 2005. Again because of the unique demographics of Tukwila and the surrounding jurisdictional support, Washington Department of Health is the authority on storage and has approved our current and future planned capacity needs for storage. Thanks again for your environmental review of the City's 2005 Water System Plan Update. Please contact me at (206)431 -2441 if you have any questions. Sincerely, Mike Cusick, P.E. Senior Engineer MC:lw Attachments (P:Laurie Admin/Mike/Letter Matt Everett 121305) 119 619 c,J A ‘Z- Cl/1" PL Construction is anticipated to begin in September 1998, and services should be transferred from Seattle to Tukwila by the end of 1998. • The City also anticipates service area growth on the south side of the Duwamish River at the Pacific Highway bridge crossing. Currently the City's 12 -inch water main in Pacific Highway dead ends before it crosses the bridge. The City anticipates commercial and industrial growth in this area in the next few years and is considering using developer financing as part of the funding needed to improve this area. However, developer activity cannot be predicted sufficiently to project future water needs. Therefore projected growth in this area will not be a part of this plan. The area is within the City limits and is currently served by KCWD 125 using two and four -inch water mains. • The largest potential service area boundary change is in the eastern portion of the City in the Riverton and Thorndyke neighborhoods. This area is also within the City's corporate limits and is currently being served by KCWD 125. , The City currently believes that customers in this region are receiving excellent service from their current provider. However, these customers are within the City limits and it is the City's goal to ultimately serve all customers within their City limits. This boundary adjustment will require negotiation with KCWD 125 and will likely be coordinated through the SKYWAY Water Utility Coordinating Committee. The City does not anticipate that this 'boundary c'.ange will occur within the six year planning horizon, and therefore the effects of such adecision are not discussed in this plan. However, as with the previous; example, customers in this region are mainly serviced.by two and four -inch distribution mains. Because these existing water lines do not meet_ minimum City construction standards, the City will have to make significant improvements to the existing system if a takeover of this area is negotiated. WATER RATES CITY OF SEATTLE WHOLESALE BILLING RATES Tukwila is billed by Seattle on a monthly basis for water purchased through each of its supply stations. Several different charges apply, and these charges are summarized in Table 2 -16. CITY OF TUKWILA RATES Consumption Charges Current water rates for the City of Tukwila were passed into law by the City of Tukwila on May 19, 1997' as Ordinance No. 1798. Table 2 -17 shows the minimum monthly charge, which is based on meter size, and Table 2 -18 shows demand charges per 100 cubic feet. The City also has seasonal volume charges which are consistent with the seasonal wholesale purchase rates. 2 -15 FOR OFFICE USE ONLY Ke-V C, coy,' oLizal CS� (AO Ste i'croi B f ZIS /vs_ DATE: NAME: 40 CITY OF TUKWILA REQUEST FOR PUBLIC RECORDS Zak /o s — / /cam 7 vGS V/ COMPANY: f-74 . �-� �-% /■_/ C IN MAILING ADDRESS: 2_ 0'24 3 o' ,4- 5' CITY /STATE /ZIP: KEG - /4____ O 3Z PHONE: Z2C -g24 -0375 FAX: 6 - $Z5- -CE °6 E -MAIL: Affu`t s1.2i/c.OAl'46 tilatPi d,-y TYPE OF RECORDS YOU ARE REQUESTING: ❑ Building Permit ❑ Mechanical Permit ❑ Building Plans Date Range: Date Range: Date Range: Permit #: Permit #(s): Permit #(s): ❑ Land Use File Date Range: ❑ Other: f D S - d / �U Permit #(s): Orig. Bldg. Name /Occupant: Current Tenant Name Site Address: PLEASE DESCRIBE IN AS MUCH DETAIL AS POSSIBLE WHAT YOU ARE LOOKING FOR OR NEED COPIES OF: ,-/i(,:w,,c/F-- YOUR REQUEST FOR PUBLIC RECORDS WILL BE RESPONDED TO WITHIN FIVE WORKING DAYS (RCW 42.17.320). There will be a 15 cent per page charge for 8 Ya" x 11" and legal, 30 cent charge for 11" x 17 ", Oversized items will be assessed additional fees (RCW 42.17.260). Exact change or check, please. Sorry, we do not accept credit cards. DATE RECEIVED: ZA [05-- STAFF INITIALS: B P:\administrative \FORMS \Records Request Highline water district intertie Water district 75 intertie Water district #75 intertie December 7, 2005 Mr. Mike Cusick, P.E. Senior Engineer City of Tukwila Department of Community Development 6300 Southcenter Blvd., Suite #100 Tukwila, WA 98188 Serving the Southwest Metropolitan Area since 1946 DEC 0 7 2005 ti uKvvILN. PUBLIC WORKS Re: Comments on Environmental Review of 2005 Water System Plan Update Dear Mr. Cusick: On behalf of Highline Water District, I would like to address several aspects of the City of Tukwila 2005 Water System Plan Update ( "Plan "). The District previously provided you with comments on the City's Plan by letter dated April 11, 2005. The District was primarily concerned that Section 2.2 "Service Area Description" (page 2 -2) states the City's intention to assume water service to the Southwest City Corner and the South Annex areas from Highline in the near future. The District currently provides water service to those areas, has sufficient supply, storage and transmission capabilities to service them and has no intention of relinquishing those service areas. Rather, based on discussion with City staff on March 23, 2005 regarding the Segale La Pianta project, City staff concurred that it was in the best interest of all parties for the District to continue serving that area in perpetuity. The District requested that those two service areas be removed from the Plan update. However, by letter dated November 8, 2005, you responded to the District's letter indicating that "the City believes that it is in the best interests of the citizens of Tukwila that the City start planning for the taking over of junior utility districts in the next 20 years." To be clear, you should be aware that the District will oppose any attempts by the City to assume District water service and its facilities in these areas. The District has and continues to provide responsive, efficient and cost effective service to these areas and an assumption would not be in our ratepayers best interest. The District and the City have had a good working relationship in coordinating public services in the best interest of our common citizens. Splitting the District's water system along political boundaries would be very costly and require duplicate looping of mains, additional system interties, system meters and would create source and storage issues. Further, a City statement of its intention to assume service in these areas within the Plan timeframe could inhibit the continued build -out and financing of required system improvements in the subject areas. The stated five and ten year assumption timeframes are not practical or 23828 - 30th Ave. S. • P.O. Box 3867 • Kent, WA 98032 • (206) 824 -0375 / FAX: (206) 824 -0806 reasonable. Development of the utility infrastructure for the Segale project will no doubt take over 10 years and should be undertaken in a methodical and coordinated fashion. As the City is also aware, Highline is the designated water service provider for these areas under the South King County Regional Water Association Coordinated Water System Plan (CWSP). Both the City and the District approved the water service area boundaries in the CWSP by interlocal agreement. Any proposal to change the agreed water service boundaries will require the City to complete a lengthy and costly process and obtain the approval of the WUCC. Further, it is not likely that a hostile assumption attempt of those areas would meet the factors and objectives in Chapter 36.93 RCW and therefore would be denied by the King County Boundary Review Board. Lastly, we are concerned that the Plan SEPA documentation did not identify or address the probable significant adverse environmental impacts due to the City's inadequate storage to serve the subject areas as well as environmental impacts that could be created from splitting the District's water system along municipal boundaries. In closing, thank you for inviting us to comment on the environmental review of the 2005 Water System Plan Update and we look forward to your response. Sincerely, HIGHLINE WATER DISTRICT (MA- ebt-EA-10 Matt Everett General Manager cc: Thomas Keown, P.E. Board of Commissioners John W. Milne, District Counsel • City ofRlkwIIld Steven M. Mullet, Mayor Department of Community Development Steve Lancaster, Director To: Steve Lancaster From: Rebecca Fox Date: December 7, 2005 Re: E05 -016, City of Tukwila Water System Comprehensive Plan (Area Served by Tukwila Water) Project Description: This SEPA review is a non- project action for the 2005 City of Tukwila Water System Comprehensive Plan Update. The proposed Plan provides the basis for water service within Tukwila. The proposal provides an analysis of future needs and methods of implementation for all water users within Tukwila. The plan includes description and analysis of the following: • Description of the Water System • Related Plans, Policies and Agreements • Planning Data and Demand • Conservation Program • Water Rights, Source of Supply and System Reliability • System Analysis • Drinking Water Compliance and Monitoring • Operations and Maintenance • Capital Improvement Plan • Financial Plan. Proponent: City of Tukwila Public Works Department Location: City -wide Date Checklist Prepared: November 3, 2005 Lead Agency: City of Tukwila Agencies with jurisdiction: None 6300 Southcenter Boulevard, Suite #100 0 Tukwila, Washington 98188 0 Phone: 206 - 431 -3670 0 Fax: 206 - 431 -3665 • • Summary of Primary Impacts: As this is a non - project action, no specific impacts can be addressed under the 16 elements normally reviewed in the SEPA checklist. The result of adopting the plan will be provision of continued water service to Tukwila customers. The Plan calls for Tukwila's eventually becoming the sole water agency within its boundaries by taking over portions of water districts currently operating within the City limits. Site - specific projects implemented after the Plan's adoption may require SEPA review of related impacts. Recommendation: DNS f\ CITY OF TUKWILA NOTICE OF APPLICATION PROJECT INFORMATION The City of Tukwila Department of Public Works has filed application for environmental review of the 2005 Water System Plan Update. This Plan applies city -wide. FILES AVAILABLE FOR PUBLIC REVIEW The project files are available at the City of Tukwila. To view the files, you may request them at the counter at the Department of'Community Development (DCD), located at 6300 Southcenter Boulevard, Suite #100, Tukwila, WA 98188. Project Files include: E05 -016: City of Tukwila Area Served by Tukwila Water. OPPORTUNITY FOR PUBLIC COMMENT Your written comments on the project are requested. They must be delivered to DCD at the address above or postmarked no later than 5:00 P.M., December 7 2005. APPEALS You may request a copy of any decision, information on hearings, and your appeal rights by calling DCD at (206) 431 -3670. For further information on this proposal, contact Rebecca Fox at (206) 431 -3683 or visit our offices at 6300 Southcenter Boulevard, Suite #100, Monday through Friday, 8:30 a.m. to 5:00 p.m. Application Filed: November 3, 2005 Notice of Completeness Issued: November 21, 2005 Notice of Application Issued: November 23, 2005 Dept. Of Community Development . City of Tukwila AFFIDAVIT OF DISTRIBUTION I , ' HEREBY DECLARE THAT: Notice of Public Hearing Project Number: Determination of Non - Significance Mailer's Signature: lAVA,--L..—N 6/4k 4 Notice of Public .Meeting RI['CI7 f7)( Mitigated Determination of Non - Significance Board of Adjustment Agenda Pkt Determination of Significance & Scoping Notice Board of Appeals Agenda Pkt Notice of Action Planning Commission Agenda Pkt Official Notice Short Subdivision Agenda Notice of Application Shoreline Mgmt Permit Notice of Application for Shoreline Mgmt Permit __ __ FAX To Seattle Times Classifieds Mail: Gail Muller Classifieds PO Box 70 - SeattTe WA 98111 Other Was mailed to each of the addresses listed on this 1V V U,day of vea in the year 2004 P:GINAWYNETTA/FORMS /AFFIDAVIT -MAIL 08/29/003:31 PM Project Name: .D-005 soem pta41da Project Number: A Mailer's Signature: lAVA,--L..—N 6/4k 4 Person requesting mailing: RI['CI7 f7)( P:GINAWYNETTA/FORMS /AFFIDAVIT -MAIL 08/29/003:31 PM 3303 0, Tukwila, WA 98188-11541-41;—". DAVE MONTHIE K C DEPARTMENT OF NATURAL RESOURCES 201 SOUTH JACKSON, SUITE 600 SEATTLE, WA 98104-3855 • DON WICKSTROM CITY OF KENT ENG. DEPT. 220 FOURTH AVE S KENT, WA 98032 CITY OF SEAmTA-C-- 4800 SO. 188TH ST. SEATAC, WA 98188-8605 PUBLIC WORKS DEPT. SEATTLE TIMES POBOX 70 SEATTLE, WA 98111 VAL-VUE SEWER DISTRICT P 0 BOX 69550 SEATTLE, WA 98168 • iipladstone p Plan Manager Seattle Public Utilities PO Box 34018 Seattle, WA 98124 BHERYL SCHEUERMAN. SKYWAY WATER & SEWER 11909 RENTON AVE S SEATTLE, WA 98178 • Richard Rodriguez Regional Planner Dept. of Health 20435 72nd Ave. So., Suite 200, K17 -12 Kent, WA 98032 CITY OF RENTON ABDOUL GAFOUR 1055 S. GRADY WAY RENTON, WA 98055 Thomas D. Keown P,E. c/o Highline Water District Construction /Operations Manager PO Box 3867 Kent, WA 98032 MEMORANDUM November 21, 2005 To: Mike Cusick From: Rebecca Fox RE: SEPA Checklist for 2005 Water System Plan Update (E05 -016) Your application for SEPA review of the 2005 Water System Plan Update has been found to be complete on November 21, 2005 for the purposes of meeting State - mandated time requirements. Notice of Application will be mailed to agencies of interest and published in the Seattle Times on November 23, 2005. The comment deadline is close of business December 7, 2005. This determination of complete application does not preclude the City from requiring that you submit additional plans or information if, in our estimation, such information is necessary to ensure the project meets the substantive requirements of the City or to gomplete the review process. \ \TUK2 \VOL3 \HOME \REBECCA \SEPA Water Plan E05 -015 \Notice of complete app.doc LMike Cusick -;FW: Tukwila comments . Page 1 From: "Hanson, Amie" <Amie.Hanson @hdrinc.com> To: <mcusick @ci.tukwila.wa.us >, "Fitz, Allen C." <Allen.Fitz @hdrinc.com> Date: 11/21/05 9:11 AM Subject: FW: Tukwila comments Hi - I received King County Metro's comments on the Water Plan, see below. Am ie Amie Hanson, P.E. Project Engineer HDR/EES 500 108th Ave NE, Ste 12001 Bellevue, WA 98004 Phone: 425 - 450 -6237 1 Fax: 425 -454 -4189 Email: ahanson @hdrinc.com <mailto:ahanson @hdrinc.com> From: Monthie, Dave [ mailto :Dave.Monthie @METROKC.GOV] Sent: Thursday, November 17, 2005 12:40 PM To: Hanson, Amie Cc: Fox, Tom Subject: Tukwila comments Amy, I did not receive comments from other UTRC members. Here are the comments from the earlier review: P 1 -2, Sec 1.3:- 2002 is shown as "First year of financial analysis period" is this correct? P 4 -4, Table 4 -3: -The table describes water purchases for the 2000 -2003 by sub watershed. The sub watershed "East Marginal #10 has a significant Peak Month (Aug) to base (Dec -Feb) ratio of approximately 6. This use is seasonal and appears discretionary with a very high peak to base ratio. The Aug use represents approximately 38% of the total for the system in that month. It would appear that this use is characteristic of residential (maybe commercial) irrigation use that would be amenable to significant reduction through intensive demand management efforts. P 4 -9 to 4 -11, Sec 4.3.5 Potable Non - Revenue Water. The analysis presented is excellent and consistent with the most recent AWWA recommendations and proposed Municipal Water Law Regulations, up to a point. As is pointed out there is no provision in either AWWA nor Municipal Water law for the concept "remainder" thus the Real Losses are approximately 14 %, an amount in excess of the standard of 10 %. There [Mike Cusick -..FW: Tukwila comments Page 2 should be some proposal in this water supply plan for exploring these leaks and proposing a water loss control plan. The Average "unaccounted for" water was 17% for the period 2001 -2003 indicating an ongoing problem. P. 4 -12, Table 4 -13: Projected Demand. Have the demands been reduced by projected reclaimed water use? The Non - Revenue water component is unrealistically high at 17% for the entire forecast period. The limit is 10% for leaks and should be factored into the demand analysis at that or lower level beginning around 2008. This problem is carried over onto P4-14. P. 4 -16, Sec 4.4.2, Reclaimed Water Demand. The average demand for the golf course during the irrigation season May -Oct is approximately 200,000 gpd. P 5 -3, Table 5 -1: Conservation Requirements. Given that this plan will be covering the period that the new conservation regulations will cover, it would be useful to make the comparison to the expected new rules. Ideally an effort would be made to begin to comply with the proposed rules. P 6 -1, Sec 6.1 Water Rights. It appears that there is no Qi value for the water rights for the Foster Golf Links, the value shown of 0.09mgd is Tess than the actual use reported in other forms. Again, sorry for the delay. Feel free to contact either me or Tom Fox if you have questions. Thanks. Dave Monthie Regional Water Policy Analyst 206.296.3782 206.296.3749 (fax) 1D 0 • City of Tukwila Steven M. Mullet, Mayor Department of Public Works James F. Morrow, P.E., Director November 8, 2005 Mr. Richard Rodriguez Regional Planner Department of Health 20435 72 ❑d Avenue S, Suite 200, K17 -12 Kent, WA 98032 -2358 Subject: Comments to City of Tukwila's 2005 Water System Plan Update Dear Mr. Rodriguez: This letter addresses State of Washington Department of Health concerns to the 2005 Water System Plan Update item by item. 1. Please provide a consistency statement signed by the appropriate City of Tukwila agency /official. A statement will be completed and sent to DOH subsequent to approval by the Tukwila City Council. 2. Your WSP (page 4 -14) states that non - revenue water was 17% of water purchases, which equates to 20.5% of water sales. The proposed Water Use Efficiency rule will require systems with greater than 10% leakage in their distribution system to pursue enhanced water conservation activities. It is anticipated that Tukwila will meet the requirement in the preliminary draft rule that distribution system leakage be 10% or less. While Tukwila's three year average non - revenue rate is 17 %, their most recent year water balance showed a non - revenue rate of approximately 15 %. That 15% can be attributed to three categories:. 1) unbilled authorized consumption, 2) apparent losses, and 3) real losses (a.k.a. leaks). Tukwila's staff attempted to assign the 15% non - revenue water to those three categories, however that task is difficult. For 2003, approximately 2% was tracked to those categories, resulting in 13% falling into a category titled "remainder." It is reasonable to assume that perhaps half of the 13% is truly real losses and the other half is unbilled authorized consumption and apparent losses. That would result in an approximate real loss rate of 8% which as stated above, is in compliance with the preliminary draft rule. 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 433 -0179 • Fax: 206 -431 -3665 Mr. Richard Rodriguez Page 2 November 8, 2005 3. Via Cascade Water Alliance (CWA) water system plan, Tukwila may get water from Tacoma Public Utilities. If other source water is introduced, does Tukwila anticipate any system improvements (storage requirements, distribution) will be needed or a change in operations (water quality and water quality monitoring)? Should Tukwila receive a new water supply, the impact on the distribution system and storage will be evaluated based on the location of the new source. It is anticipated that the number of new connections to the Tukwila system will be limited and will be located near to the existing connection points to minimize the impact on the system. The impact on the water quality and monitoring will also be evaluated based on the location of the new source connection and the amount of water that is being introduced. There are too many unknowns to do any analysis at this time. 4. A Tukwila /Kent intertie is proposed as a supply option in the CWA water system plan. This project does not appear in the City's capital improvement program. If this option is to be pursued, an intertie agreement between Tukwila and Kent will be required. The intertie discussed in the CWA water system plan is located at the site of an existing intertie between Kent and Tukwila. This intertie is an emergency intertie and water can flow from Tukwila to Kent by gravity but requires pumping to lift water to Tukwila. An intertie agreement exists for the current intertie. Should this intertie advance to a source connection, a new agreement will be made between the two cities. No new facilities are required in Tukwila to receive up to 2.0 mgd of water from Kent and move the water to customers. The only new construction that would be required is a pump station at the intertie. The pump station would be a CWA capital item, thus no Capital Improvement Program listing in the Tukwila WSP is needed. 5. Please provide a copy of the Cross - Connection Control Program. Which elements of the cross connection control program has the City completed (refer to WAC 246 -290- 490(3) and Section 9.9.1)? What is the City's schedule for implementation on the remaining program elements? The City is not only updating the Tukwila Municipal Code with a new cross - connection ordinance, but we have spent hours of crew time refining our cross - connection device data -base, checking for cross - connection compliance when we get tenant improvement applications, and continuing our survey of potential table nine facilities. We have more succinctly referenced the current WAC guidelines in our program and were planning to submit the revised update to DOH with the updated ordinance once it is approved by the Tukwila Council. We have worked closely with Terri Notestine on our annual reporting and have specifically completed the installation of RP devices on all city sewer lift stations. • • Mr. Richard Rodriguez Page 3 November 8, 2005 6. The Financial Plan section does not mention Cascade Water Alliance rates and revenue requirements. Specifically, the CWA plan allots the 242 gpd per CERU to its member entities. Depending on a member's usage needs, it appears that using 242 gpd per CERU may drastically over or understate the rate impacts to each individual member. The plan should consider this issue and describe how a member should use the information and what might happen if their ADD is significantly more or less than the 242 gpd per CERU. The demand estimate of 242 gpd per CERU is indeed a system -wide average. This reflects Cascade's policy to not give a financial advantage or disadvantage to any Member based on geographical location. This estimate only affects the Member Charge projections for growth, which is generally a relatively small portion of the total customer base. Ca'scade's Member Charges (except for Regional Capital Facilities Charges) will not be imposed based on this estimate of demand. Demand Share Charges are based on a three -year rolling average of historical data; Administrative Dues and Conservation Charges are based on CERU's (which are based on meter size); New Water Surcharges are based on projected demand, but are then reconciled on an animal basis. 7. Please provide documentation that comments from local governments, adjacent utilities and interested parties related to elements of the WSP have been acknowledged. Attached are responses to concerns from Highline Water District, Water District 125, and City of Seattle. 8. Please provide a signed Determination of Non - Significance with the revised WSP. Attached is a signed Determination of Non - Significance for the Revised Water System Plan. Please contact me at (206)431 -2441 if you have any questions. Michael P. Cusick, P.E. Senior Engineer MC:lw (P:Laurie Admin/Mike /Letter Richard Rodriguez 110805) • Gity of Tukwila • . Steven M. Mullet, Mayor November 8, 2005 Department of Public Works James F. Morrow, P.E., Director Mr. Thomas D. Keown, P.E. Construction/Operations Manager P.O. Box 3867 Kent, WA 98032 Subject: Comments to City of Tukwila's 2005 Water System Plan Update Dear Mr. Keown: This letter addresses Highline Water District concerns to the 2005 Water System Plan Update item by item. In Section 2.2 Service Area Description (page 2 -2), the City discusses the Southwest City Corner and the South Annex areas to be annexed from Highline Water District in the near future. The District currently serves the affected areas and has sufficient supply, storage and transmission capabilities to service them and has no intention of relinquishing this service area. Based on discussions with City staff on March 23, 2005 regarding the Segale La Pianta project, this issue was discussed and staff concurred it was in the best interest of all parties for the District to continue serving this area in perpetuity. The District respectfully requests that these two assumption areas be removed from the City's comprehensive plan. In Section 2.2 the Highline Water District objects to the City of Tukwila planning for the taking over of Highline Water District in the City of Tukwila. The City believes it is in the best interests of the citizens of Tukwila that the City start planning for the taking over of junior utility districts in the next 20 years. In Section 2.8.5 Highline Water District (page 2 -12), please revise the paragraph to state that Highline Water District is supplied 75 % of its water from Seattle Public Utilities and has three wells which provide the remaining 25 %. In Section 2.8.5 the plan states that Highline Water District is supplied by the City of Seattle. The Highline Water District also uses its own well field for 25% of its water supply. In Section 7.2 Storage Analysis (page 7 -10), the District is troubled that the City has very limited storage, i.e., one 2.0 mg tank. Since the Nisqually Earthquake and the event of September 11, 2001, the District urges the City to add storage within its service area in order to provide its citizens with reliable storage. The District is not inclined to activate our emergency intertie in the event of an area wide disaster if the City assumes that they can piggyback on the investments of the District's ratepayers. 6300 Scz:thcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206- 433-0179 • Fax: 20b- 431 -3OoD • • Mr. Thomas D. Keown, P.E. Page 2 November 8, 2005 The District comment about not being inclined to activate the emergency intertie should refer to Paragraph 6 in the March 31, 2000, agreement between the City of Tukwila and Highline Water District below: 6. Priority and Continuity of Service 6.1 The determination of whether water is available for emergency sale shall be at the sole discretion of the party delivering (selling) the water. In the event of drought or other condition requiring restricts on the delivery of water, the party delivering the water shall have the right to restrict or interrupt service. The party providing water may voluntarily interrupt or reduce deliveries of water if it determines that such interruption or reduction is necessary or reasonable. Except in cases of emergency and in order that operations will not be unreasonably interfered with, the party providing water shall give the party buying water, reasonable notice of any such interruption or reduction, the reason therefore, and the probable duration thereof. The party buying water shall discontinue or reduce service from the intertie upon reasonable notice. Service shall be reactivated or increased again subject to the aforementioned conditions. In Appendix 0 Hydraulic Model, District staff noticed that the Hazen - Williams C Factors used were 100 for all pipe segments. While this is a conservative approach, we noted that in Section 7.1.2 Calibrations (page 7 -4), it mentions that C Factors were adjusted based on field data i.e., hydrant flow tests, etc., to find deficiencies in the City's system. If the C Factors were adjusted, then Appendix 0 should include the changes. The hydraulic model was calibrated to fire flow data as mentioned in Section 7.1.2. The C- factors listed in Appendix 0 are the values that were deveh'ped thiring the calibration process. Because of the similarity in the piping material throughout the distribution system and the uniformity of the results of the initial calibration results, it was felt that changing all the C- factors would be appropriate instead of selectively changing C- factors in portions of the distribution system. Please contact me at (206)431 -2441 if you have any questions. Michael P. Cusick, P.E. Senior Engineer MC:lw (P:Laurie Admin /Mike /Letter Thomas Keown 110805) • • City of Tukwila . Steven M. Mullet, Mayor November 8, 2005 Department of Public Works James E Morrow, P.E., Director Judi Gladstone Complan Manager Seattle Public Utilities P.O. Box 34018 Seattle, WA 98124 -4018 Subject: Comments to City of Tukwila's 2005 Water System Plan Update Dear Ms. Gladstone: This letter addresses Seattle Public Utilities concerns to the 2005 Water System Plan Update item by item. Sections 4 and 5 — SPU has generally reviewed in detail the portions of purveyor water system plans that cover demand forecasting and conservation. For purveyors contracting with and buying water directly from SPU, these topics are of direct interest to SPU. For purveyors now purchasing water through the Cascade Water Alliance, it is more appropriate that CWA provide this detailed review for its members, including Tukwila. Comment noted. No response required. Section 7.2 — The conclusion that existing storage is adequate should not be based on an assumption that the two SPU pipelines providing supply to Tukwila will be in service 100 peace ^t cf the +'^'e. Emergency shutdowns to repair pipeline breaks could last several days, and planned outages for system replacement or modification could last much longer. For this reason, Management Agreement No. 5 with Cascade Water Alliance (CWA), signed April 18, 2005, specifically states that the level of service provided to CWA does not include continuous and uninterrupted provision of fire flow. The agreement also indicates the responsibility of individual utilities to have required stand -by- storage or other supply means to provide fire flow. The decision on storage analysis should be re- visited if this has not been taken into account. The City of Tukwila and CWA recognize the potential for the outage in a transmission main and the impact on the availability of water for Tukwila. The impact of a loss of one or more interties with Seattle has been evaluated and the portions of the City that will experience impacts have been identified. The City has a contingency plan that can come into operation in the event of a sudden loss of water. Loss of a major transmission line will impact many other water purveyors beyond the City of Tukwila. Tukwila has cooperative agreements with the districts that surround the City that use sources of water other than Seattle's sources to provide the water. 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206- 433 -0179 • Fax: 206 - 431 -3665 Ms. Judi Gladstone Page 2 November 8, 2005 Section 8.2.1 — U nder the current approach of regional coliform monitoring, utilities that received all their water from SPU base their number of monthly samples on a fraction of that listed in Table 2 of WAC 246 - 290 -300; for residential population, 70 percent of the number of samples in Table 2; and for non - residential population, 50 percent of the number of samples in Table 2. Tukwila will need to coordinate with the SPU Water Quality Laboratory when the required number of monthly samples has been finalized, and furnish SPU a copy of the updated coliform monitoring plan when it is completed. SPU will be provided an updated coliform monitoring plan. Section 8.2.4 — The status of the re gional water system in regard to the Lead and Copper Rule has changed significantly since 2003. SPU and its wholesale customers completed one round of lead and copper testing in 2003 (as noted in the Water System Plan) and a second round in 2004. Based upon these results, DOH found the system to be optimized for corrosion control in November 2004. Two additional rounds of tap samples are required in 2005, and at the request of DOH, the framework for determining regional compliance has changed. There are now four areas for which compliance is determined separately: Cedar wholesale customers, Tolt wholesale customers, City of Bellevue, and City of Seattle. Testing beyond 2005 will depend on this year's results. The City of Tukwila will participate as required in the testing of the water for lead and copper. Please contact me at (206)431 -2441 if you have any questions. Sincerely, Michael P. Cusick, P.E. Senior Engineer MC:lw (P:Laurie Admin/Mike /Letter Judi Gladstone 110805) November 8, 2005 • City of Tukwila • . Steven M. Mullet, Mayor Department of Public Works James E Morrow, P.E., Director Mr. Russ Austin Superintendent Water District No. 125 P.O. Box 68147 SeaTac, WA 98168 Subject: Water District No. 125 Review of 2005 Water System Plan Update Dear Mr. Austin: This letter addresses Water District 125 concerns to the 2005 Water System Plan Update item by item. 1. Exhibit 2 -1 and associated text indicate that the City of Tukwila is planning to assume major portions of Water District 125. Exhibit 2 -1 depicts an assumption area within 6 years and a "Potential Tukwila Service Area" (from 7 -20 years). I would like to address these two assumption areas and plans separately. A. Assumption areas within 5 years (Central City Areas): As you are well aware, the City of Tukwila and the Water District have been negotiating a service area swap for about two years. There is no mention in the Plan regarding this discussion or our latest plan that was tentatively agreed to by the city and District staff as set forth in the attached January 11, 2005, memo. We request that a discussion of this plan be included. We note that you show, on Exhibit 2 -1, the area the District is willing to transfer to the City, but you fail to show the area of Foster Point that the City wishes to transfer to the District. We request corrections be made to the text and Exhibit 2 -1. B. Potential Tukwila Service Area (from 6 -20 years) (West City Area): Exhibit 2 -1 depicts a future service area that includes approximately half of the current District service area. You should be aware that the District would oppose any such takeover action by the City as we do not believe this assumption would be in our ratepayers' best interest. The District has and continues to provide very responsive, efficient and cost - effective service to this area. The District and City have always had a great working relationship in coordinating public services in the best interest of our common citizens. Splitting the District along a municipal boundary would be very costly and require duplicate looping of mains, a multitude of system interties, system meters, and source and storage issues. We would discourage the City from requiring the unnecessary expenditure of funds that would result from such a plan. Further, it is not likely that such an assumption would meet the factors and objectives in Chapter 36.93 RCN and would therefore be denied by the Boundary Review Board. 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 433 -0179 • Fax: 206 -431 -3665 • Mr. Russ Austin Page 2 November 8, 2005 In addition, King County Water District 125 is the designated water service provider for the area lying within our service area. This has been established through the various coordinated water system plans by signed agreements by the various water purveyors. Any proposal to change the agreed water service boundaries will require the City to complete a lengthy and costly process and obtain the approval of the WUCC. The City believes it is in the best interests of the citizens of Tukwila that the City begin planning for the taking over of junior utility districts in the next 20 years. 2. On page 4 -16 of the Draft Plan, a discussion of using reclaimed water occurs. It includes a discussion of connection the Seattle Rendering Plant to reclaimed water. As correctly pointed out, the Seattle Rendering Plant is a customer of King County Water District 125. In fact, it is the District's largest water use customer. The District and the Rendering Plant have in the past explored in detail converting much of its water use to the King County Reclaimed Water that runs adjacent to this site. To date, this has proven unsuccessful for three primary reasons as follows: A. The cost of reclaimed water proposed to be charged by King County does not make this feasible. B. It would require a parallel (duplicate) water system internally at the rendering plant for this to happen, and in that there is no cost benefit to the plant, the Rendering Plant has chosen not to participate. - C. King County cannot assure a non - interruptible supply of reclaimed water. In other words, two parallel systems would be required so the source of water can be switched to domestic water when reclaimed water is not available. As stated earlier, the Rendering Plant is the District's largest user of water and is a very important customer of the District. As you already know from past discussions, the District is not interested in turning this customer over to the City and has recently invested in source and storage upgrades to this customer by the purchase of 25 % of t'.:e Skyway's source /storage facilities that service this customer. On page 6-4 of the Plan, a statement is made, "The City is in discussion with the plant to determine the possibility of using reclaimed water." Any discussion and solicitation of this nature should be directed through the District because the Plant is within the District's service area and is the District's customer. The Seattle Rendering Plant is located near a reuse water line and the City is promoting the use of reuse water as a conservation method in the City. 3. Source /Storage Concerns (on Page 7 -10): In Section 7.2, Storage Analysis, it is noted that the City has no gravity storage for any of the City's customers. Instead it has one 2.0 MG reservoir where water needs to be pumped to utilize. The City relies on storage built into other purveyor systems, including City of Seattle Regional System and adjacent purveyor interties. The District supports this approach for the existing City customers. The District, besides the regional system, also relies on two major regional storage facilities it has bought into with King County Water District 20 and .Skyway Water and Sewer District. We would not be comfortable with the City assuming District customers without storage being supplied by the City. This is magnified in the District's eyes because the City no longer has a contract with the City of Seattle for its water supply, but rather Cascade Water Alliance. The • • Mr. Russ Austin Page 3 November 8, 2005 long -term source of supply for the City may not be Seattle and therefore, the City's reliance on others for storage may go away. Tukwila recognizes the concern that King County Water District 125 has regarding the amount of storage that is located in the Tukwila system. The City is committed to providing quality water service to all its existing and new customers. Based on the CWA Transmission and Supply Plan (TSP) the City will receive water from the Seattle transmission system for at least the next six years (the planning horizon of this WSP). Thus, any changes to the supply system and its ability to substitute for storage in the Tukwila system will not take place for some time. Prior to any change in supply for the City of Tukwila, a complete analysis of the impacts on the Tukwila distribution and storage will be made and new storage facilities may be constructed, if needed. Please contact me at (206)431 -2441 if you have any other questions. Michael P. Cusick, P.E. Senior Engineer MC:lw (P:Laurie Admin/Mike /Letter Russ Austin 110805) City of Tukwila RECEIVED NOV 0 3 2005 COMMutit fY DEVELOPMENT 2005 Water System Plan Update Appendices February 2005 Adopted by Resolution No. - Mayor: Steven Mullet City Council: Pam Carter Joe Duffie David Fenton Jim Haggerton Joan Hernandez Pam Linder Dennis Robertson • 10900 NE 4th Street, Suite 1110 dieel5 Bellevue, WA 98004 (425) 452 -8100 Appendices A. Plan Content Checklist B. Attachment , o, General Approval Checklist C. Attachment 5-- Consistency Statement Checklist D. Water Facilities Inventory E. Intertie Agreements - KCWD #125 F. Intertie Agreement - Highline G. Intertie Agreement - Renton H. Intertie Agreement - Kent 1. Utilities Chapter from Tukwila Comprehensive Plan J. Water Related City Ordinances K. Cascade Water Alliance Interlocal Contract L. Cascade Water Alliance Water Supply Commitment M. Cascade Water Alliance and Seattle Contract N. Seattle Public Utilities Water Shortage Contingency Plan O. Hydraulic Model Supporting Information - List of Pipe Segments P. Hydraulic Model Supporting Information - List of Nodes Q. Hydraulic Model Supporting Information - Water Model Map R. Tukwila Water Operations Plan S. City of Tukwila Design and Construction Standards T. Distribution System Recommended Capital Improvements U. Detailed Financial Plan V. SEPA Checklist W. Water System Comprehensive Plan Correspondence X. Coliform Monitoring Plan Z 1 Contents I-D dates City of Tukwila • APPENDIX A PLAN CONTENT CHECKLIST • Appendix A Plan Content Checklist The following checklist summarizes the topics which are discussed in each section of this handbook. It is intended to serve as a checklist for the purveyor, assuring that key topics are included in the draft WSP. DOH will use this checklist during the plan review process. WSP Section Chapter 1- Description of Water System Ownership and Management System Name 2.1 Type of Ownership 2.1 Management Structure 2.1 Water Facilities Inventory Report Form 2.1 System Background History of Water System Development and Growth 2.3 Geography 2.2 Neighboring/Adjacent Purveyors 2.8 Ordinances/By Laws 3.1.3 Inventory of Existing Facilities Description of Facilities and Major Components 2.5 Number of Service Connections (Existing and Approved) .. 4.1 Existing Interties 2.9 Related Plans List of Related Plans 3.1 Comments From Agencies and Adjacent Purveyors n/a Responses to Comments n/a Existing Service Area and Characteristics Existing Service Area Map 2.2 Zoning and Land Use 3.1.2 Future Service Area Future Service Area Map 2.2 Zoning and Land Use 3.1.2 Service Area Agreements n/a Service Area Policies 3.1.3 Satellite Management n/a Condition of Service Policies 3.1.3 Complaints Policy 3.1.3 Recordkeeping 3.1.3 Chapter 2 - Basic Planning, Data and Water Demand Forecasting Current Population, Service Connections, Water Use, and Equivalent Residential Units Current Population 4.2 Total Service Connections 4.1 Water Use Data Collection 4.3.1 -4.3.5 Equivalent Residential Units n/a Projected Land Use, Future Population, and Water Demand . WSP Section Projected Land Use 3.1.2 Projected Population 4.2 Projected Non - Residential Water Needs 4.3.6 Projected Non-Revenue Water 4.3.6 Water Rates and Rate Impacts on Water Demand Water Demand Forecasting 4.3.6 Chapter 3 - System Analysis System Design Standards 9.8 Water Quality Analysis Historical Review; of Trends 8.2 Future Requirements 8.3 System Description and Analysis Source 2.3 Water Treatment 2.3.1 Storage 2.5.2 Distribution System/Hydraulic Analysis 7.1 Identification of System Improvements 7.1.5 & 10.2 Assessment of Alternatives n/a Prioritizing Improvements 7.1.5 & 10.2 Selection of Alternatives n/a Chapter 4 - Conservation Program, Water Right Analysis, System Reliability and Interties Conservation Program Development and Implementation . Required Measures For All Systems 5.2 — 5.3 Other Measures and Level of Implementation 5.2 — 5.3 Conservation Program Outline 5.2 — 5.3 Regional Conservation Programs Source of Supply Analysis 6.2 Enhanced Conservation Measures 6.2 Water Right Changes 6.2 Interties 6.2 Artificial Recharge 6.2 Use of Reclaimed;Water, Reuse, and other Non - potable .. . Sources 6.2 Treatment 6.2 Water Right Evaluation Permits, Certificates, Claims and Applications .- Narrative 6.1 Existing Water Right(s) Status (Table 3) 6.1 Forecasted Water Right(s) Status (Table 4) 6.1 Water Rights, Current Water Usage and Projected Needs 6.1 Water Reservations n/a Assessment of Need for Additional Water Rights n/a Water Supply Reliability Analysis - -- Summary of System Reliability Efforts 6.3 Water Shortage Response Planning 6.3 Monitoring Well Levels n/a Interties -- Existing Interties 2.9 • • • New Intertie Proposals Interne Agreements Identification of System Improvements Assessment of Altematives Prioritizing Improvements Selection of Alternatives WSP Section 6.2 2.9 Chapter 5 - Source Water Protection Wellhead Protection Program n/a Overview Completed Susceptibility Assessment Form(s) Wellhead Protection Area Information n/a Delineation of Wellhead Protection Area(s) n/a Contaminant Source Inventory n/a Notification of Findings n/a Contingency Plan n/a Spill Response Plan n/a Regional Implementation Efforts n/a Implementation Strategies n/a Watershed Control Program n/a Watershed Description/Characteristics n/a Identification of Activities/Land Uses Detrimental to Water Quality n/a Watershed Management and Control Measures n/a Monitoring Program n/a System Operations n/a Periodic Watershed Evaluations/Updates n/a Identification of System Improvements n/a Assessment of Alternatives n/a Prioritizing Improvements n/a Selection of Alternatives n/a Chapter 6 - Operation and Maintenance Program Water System Management and Personnel 9.2 Operator Certification 9.3 System Operations and Control 9.4 Identification of Major System Components 9.4.2 Routine System Operation 9.4.3 Preventative Maintenance Program 9.5 Equipment, Supplies and Chemical Listing 9.5 & 9.10 Comprehensive Monitoring (Regulatory Compliance) Plan Monitoring Plan Elements 8.6 Source n/a Distribution 9.9 Treatment n/a Adjustments to Monitoring Programs Emergency Response Program 9.6 Water System Personnel Emergency Call-Up List 9.6 Notification Procedures 9.6 Vulnerability Analysis 9.6 Contingency Operational Plan Safety Procedures Cross - Connection Control Program Customer Complaint Response Program Recordkeeping and Reporting 0 & M.Improvements - Identification of System Improvements Assessment of Alternatives Prioritizing Improvements Selection of Alternatives Chapter 7 - Distribution Facilities Design and Construction Standards Project Review Procedures Policies and Requirements for Outside Parties Design Standards,(Performance Standards and Sizing Criteria) . . Construction Standards (Materials and Methods) Construction Certification and Follow -up Procedures Identification of System Improvements Assessment of Alternatives Prioritizing Improvements Selection of Alternatives Chapter 8 - Improvement Program Improvement Schedule (Table 5) Chapter 9 - Financial Program Water Systems with 1,000 or More Connections (Not Regulated by) UTC) Past and Present Financial Status Available Revenue Sources Allocation of Revenue Sources Program Justification Assessment of Rates Water Systems with Less Than 1,000 Connections (Not Regulated by UTC) Past Financial Status Improvement Program Financing Financial Viability Test Rate Structure Analysis Water Systems Regulated by UTC Historical Financial Information Future Financial Planning Information Chapter 10 - Miscellaneous Documents Supportive. Documents State Environmental Policy Act Other Documents Agreements Comments on WSP from County Comments on WSP from Adjacent Utilities WSP Section 9.6 9.7 9.9 9.9:2. 9.11 9.12 9.8 9.8 9.8 9.8 9.8 7.1.5 & 10.2 10.2 11.2 & 11.4 11.3.1 & Appendix U 11.3.2 & Appendix U 11.3, 11.4, 11.5 & 11.8 11.6 Appendix V n/a Appendix W Appendix W APPENDIX B ATTACHMENT 2. GENERAL APPROVAL. CHECKLIST • • Attachment 2: Municipal Water Law Water System Plan /Small Water System Management Program General Approval Checklist For each element, please identify where in your Water System Plan (WSP) or Small Water System Management Program (SWSMP) submittal the requirements of the Municipal Water Law identified in the column labeled `Element' are addressed. The "Application" column identifies the type of plan (WSP or SWSMP) and the size of system the element applies to. Application Element Addressed in plan on pages indicated Documentation Attached Water rights and system capacity WSP and SWSMP All size systems The water rights self - assessment you have included in your WSP and SWSMP must be complete and must adequately reflect your water right status. Please review your self - assessment for completeness, accuracy and consistency with your water rights. 0 If there are factors (i.e. supplemental, seasonal, etc.) to your water right that are not addressed in the self - assessment format, provide additional statements on how those factors affect your self - assessment. Section 6.1 WSP and SWSMP All size systems The system capacity analysis must incorporate the water right quantity parameters (QaQi) found in your water rights self - assessment. Identify the number of connections, population served, and/or Equivalent Residential Units (ERUs) that you are currently _serving and identify your current instantaneous and annual water usage. Water use demand should not exceed existing water right QaQi. Sections 4.1, 4.2, 4.3.1, 4.3.4 WSP All size systems The system capacity analysis must incorporate the water right quantity parameters (QaQi) found in your water rights self - assessment. For a 6 -year planning horizon, evaluate the number of connections, population served, and/or Equivalent Residential Units (ERUs) that you are planning on serving, utilizing historical water usage and future population projections. Water use demand projections should not exceed existing water right QaQi. Section 4.3.6 Service Area Delineation WSP and SWSMP All size systems Provide a map and description of the water system service area. The map must delineate your retail service area (existing and future) as well any other service area (existing and future) you wish to include in your water right place of use. Provide clear. differentiation between the two boundaries. Section 2.2 WSP and SWSMP All size systems Provide a copy of the land use map(s) for jurisdictions served by your system. Section 3.1.2 Application Element Addressed in plan on pages indicated Documentation Attached Conservation WSP and SWSMP All sizes stems Y New language has been added to RCW 70.119A, which states, "...municipal water suppliers shall continue to meet the existing conservation requirements of the department and shall continue to implement their current water .conservation programs." _ - - _ - Describe what, if any, previous efforts will be discontinued. For discontinued efforts, identify why continuation of these efforts would be ineffective or provide documentation that the discontinued program had a prescribed end date or savings level. Section 5.2 WSP All size systems Must meet current conservation requirements. Please review the requirements (attached) and provide identification of where in your current WSP each of the elements is included. Section 5.2 SWSMP All size systems Provide a completed Water Conservation Program (Element 14 of the SWSMP). N/A WSP Systems serving 1000 or more connections Describe the projects, technologies, and other cost - effective measures that comprise your water conservation program. Sections 5.2, 5.3 WSP Systems serving 1000 or more connections Describe the improvements in the efficiency of water system use resulting from implementation of your water conservation program over the last six years. Section 5.4 WSP Systems with inchoate water rights serving 1000 or more connections Provide a demand forecast for the next 6 -years based on the water savings expected from the planned conservation measures. Sections 4.3.6, 5.4 WSP Systems with inchoate water rights serving 1000 or more connections Provide a demand forecast for the next 6 -years based on the water savings expected if implementing additional conservation measures that were considered cost - effective, including those that were not chosen to be implemented at this time. N/A • • Application Element Addressed in plan on pages indicated Documentation Attached Reclaimed Water WSP Systems with greater than 1000 S� connections Exploring opportunities for water reclamation is an element of the Municipal Water Law that must be addressed in this plan Systems > 1000 Connections must complete Attachment 9: Water Reclamation Checklist for Systems with 1,000 Section 6.2 or more Connections or provide comparable documentation. Duty to Serve WSP All size systems Describe how your system responds to requests for new water service by providing: 1. The process for service requests, including timeframes 2. How you determine that your system's capacity is adequate to provide new water service (including sufficient water rights) 3. Conditions of a non - technical nature that may affect your ability to provide new water service (annexation procedures, water rights issues, local ordinances, etc.) 4. Your system's procedures for granting or requesting extensions of time during a water service related project, and describe your procedure for handling disputes and appeals when water service requests are denied Section 3.1.3 Local Government Consistency WSP or SWSMP All size systems Consistency with applicable adopted local plans, regulations and policies must be determined prior to plan submittal. For each appropriate planning agency provide a completed "Consistency Statement Checklist" or analogous documentation. Appendix X Watershed Coordination WSP or SWSMP All size systems In Watershed Planning Process per RCW 90.82 If your system is located in an area developing a watershed plan per RCW 90.82, describe your efforts to coordinate with the local planning unit. We have attached a list of Water Resource Inventory Areas (WRIA) where watershed plans are currently in development along with contact names for each area. N/A • APPENDIX C ATTACHMENT 5 CONSISTENCY STATEMENT CHECKLIST • • • Attachment 5: Water System Plan and Small Water System Management Program Consistency Statement Checklist This checklist is intended to ensure consistency of water system planning documents with adopted local comprehensive plans and development regulations. Each local planning jurisdiction in which the water utility provides service will review the relevant water system planning information and provide a signed consistency statement to the utility for submittal to the Department of Health. If the local planning agency will not respond, the highest authority within the utility (chair of governing body, executive director of private companies, etc.) must sign to verify consistency of the plan information. Water System Name: City of Tukwila Planning Document Title: Water System Plan Local Planning Jurisdiction: King County PWS ID: 89500F Plan Date: 2004 Consistency Statement (Reference Municipal Water Law Section 5 and 8, amendment to chapter 90.03.386 and chapter 43.20 RCW) Section(s) In Planning Documet (completed by utility) Yes - No -Not Applicable The retail service area, and any other areas not served by a separate public water system, and land use identified in the WSP is consistent with the adopted comprehensive plan and adopted development regulations and policies. Sections 2.2, 3.1 For WSPs only: The growth projection used to forecast water demand for the retail service area is consistent with the adopted city/county's population growth projections (and commercial development projection if applicable). If a different growth projection was used, the alternative growth projection and methodology proposed is acceptable based on explanation given. Sections 4.2, 4.3.6 For WSPs only: New potential large water users (that may have a significant impact on the water system) that the city/county is aware of have been identified in the WSP. Section 4.3.6 For city -owned systems only: All policies regarding water service outside the corporate boundaries are included in this WSP. These policies are consistent with the adopted comprehensive plan and development regulations. Section 3.1 Where the local planning agency is unable to sign a Consistency Statement: Provide documentation of efforts to coordinate with local agencies with a 60 -day timeline for local agency to respond. Include: name of contact, date, type of effort attempted, and response from local agency. N/A I certify that the above statements are true to the best of my knowledge and that these statements support the conclusion that the subject - planning document is consistent with adopted comprehensive plans, development regulations, and other policies. Signature Printed Name, Title, & Jurisdiction Date * *For any issues of inconsistency, please provide comments on how they can be resolved. ** APPENDIX D WATER FACILITIES INVENTORY • • • Washington State Department of te Health Division of Environmental Health Office of Drinking YVatrr Water Facilities Inventory (WFI) Report Create Date: 9/7/2004 Water System Id(s): 89500 Print Data on Distribution Page Y Print Copies For: DOH Copy Water System Name: ALL County: ALL Region: NW Group: A Type: ALL Permit Renewal Quarter ALL Water System Is New: ALL Water System Status: Act Water Status Date From: ALL To: ALL Water System Update Date From: ALL To: ALL Owner Number ALL SMA Number. ALL SMA Name: ALL Active Connection Count From: ALL To: ALL Approved Connection Count From ALL To: ALL Full -Time Population From: ALL To: ALL Water System Expanding Services ALL Source Type: ALL Source Use: ALL Source Uses Simple Disinfectent ALL Source Uses Filtration: ALL Source Uses Other Treatment ALL WFI Printed For: On- Demand • -- This page is intentionally left blank -- • r41 Health oit;an,n ufenmronnnnlrtl Hark ata..:ra;nc,,.g n;,t.� TER FACILITIES INVENTOR FI FORM Quarter: 1 Updated: osro7naoa Printed:09 /07/2004 WFI Printed For: On- Demand Submission Reason :Annual Update ONE FORM PER SYSTEM RETURN TO: Northwest Regional Office, 2 1: SYSTEM ID N0.. • .89500 F • a .SYSTEM NAME' .. TUKWILA WATER DEPARTMENT 3 COUNTY KING 4. GROUP-' A _.: 9 TYPE: Comm EL. PRIMARY CONTACT NAME& MAILING ADDRESS 7. OWNER NAME 8 MAILINQ ADDRESS . I& Owner Number. 002989.. .. PAT BRODIN TUKWILA, CITY OF 600 MINKLER BLVD JIM MORROW TITLE PUBLIC WORKS TUKWILA, WA 98188 6200 SOUTHCENTER BLVD TUKWILA, WA 98188 STREET ADDRESS IF DIFFERENT FROMABOVE- . STREET ADDRESS IF DIFFERENT FROM ABOVE. . ATTN ATTN ADDRESS ADDRESS CITY STATE ZJP CITY STATE ZIP 9.24 HOUR PRIMARY CONTACT INFORMATION .:.. ; -' 1D; OWNER CONTACT `INFOR6IATION ... ..- Primary Contact Daytime Phone: (206) 433-1861 Tuner Daytime Phone: (206) 433 -0179 Primary Contact Mobile/Cell Phone: (206) 571 -6279 Tuner Mobile/Cell Phone: Primary Contact Evening Phone: (206) 433 -1808 Tuner Evening Phone: (206) 433 -1808 Email• poroaInrcl.tukwfa.wa.us a'c (206) 431 -3665 •mail: WAC 246. 290. 420(9) requires that water systems provide 24 -hour contact information for emergencies. 1f: SATEWTEMANAOEMENTAOENC( sMA(eheckonlyorie) • . Not applicable (Skip to #12) ❑ Owned and Managed ❑ Managed Only ❑ Owned Only SMA NAME: SMA Number:. 12.= WATER3YSTEMGHARACTERI8T ICS(markALL that apply) ['Agricultural XCommen9al / Business ❑ Day Care ❑ Food Service/1-cod Permit O 1,000 or more person event for 2 or more days per year ❑ Hospital/Cnnic x Industrial ❑ Licensed Residential Facility ❑ Lodgtn9 ❑ Reaeational / RV Park )1XResidenlial ❑School ['Temporary Farm Worker ['Other (church, fire station, etc.): 13: WATER SYSTEM OWNERSHIP (mark only 'one). ❑ County ❑ Federal )1 City )$(City / Town ❑ Investor ❑ Private ❑ special District ❑ State T4 STORAGE CAPACITY (gallons), 2,000,000 15 18 souRCE NAME uexUnLTTY'S MUM FORSOURNE 'AND WELL TAO ID NUMBER: . enumNe WELL Dt7tYU58- IF SOURCE to PURCHASED OR INTERTIED UBrSELLER'S NAME Example. SEATTLE' 17 INTERTIE. INTERTIE Min* ID NUMBER; 77050Y /SEATTLE 77050 Y SOURCE 18 CATAGORY USE TREA X X a. 71850L/RENTON 381501/KENT 71850 L X X 2500 0 ocATiON SW 25 OON 23N OOE 04E 406506/HIGHLINE 381501 X X 0 sun 36 23N 04E 41998T/KCWD # 125 40650 6 X X 0 NE 35 23N 04E 41998 T X X 0 NW 10 23N 04E DOH 331 -011 (Rev. 06/03) Department of Health Copy Page: 1 WATER FACILITIES INVENTORY (WFI) FORM - Continued 1. SYSTEM ID N0. 89500 F 2. SYSTEM NAME TUKWILA WATER DEPARTMENT 3. cowry KING 4. GROUP A 5. TYPE. Comm Lines 25,29,35 and 36 are required to be completed (other lines am options/). ACTIVE SERVICE CONNECTIONS DOH USE ONLYI CALCULATED ACTIVE CONNECTIONS DOH USE ONLYI APPROVED CONNECTIONS 25. SINGLE FAMILY RESIDENCES (How many of the following do you have'?) 0 1296 Unspedfied A Full Time Stogie Farr* Res ces (Occupied 180 days cr more per year) 1296 DEC 8. Part Time Single Family Residences (Occupied hiss Men 180 days per year) 0 28. MULTI - FAMILY RESIDENTIAL BUILDINGS (How many of the following do you have ?) A. Apatrrrent BWidbtga condos, duplexes, bane* domes 0 B. Full Time Residential Units in the Apartments, Condos. Duplexes, Dams that are occupied more than 180 dayaryea 0 C..Pert Time ReddaNal Unia N the Apahnada Condos, Duplexes, Dams that are occupied hiss than 180 dayslyesr 0 27. NON - RESIDENTIAL CONNECTIONS (How many of the following do you have'?) A. Recreational Services (Campsites. RV Shea. Spigots, etc) 0 0 B. How many days per month are they present? B. hu8t ulonal, CanunadaliBudrmss, School, Day Cara Industrial services, eta 853 853 I 28. TOTAL SERVICE CONNECTIONS 2149 29. FULL -TIME RESIDENTIAL POPULATION A. How many residents are served by this system 180 or more days per year? 5710 JAN 14* FEB 14" 30. PART-TIME RESIDENTIAL POPULATION JAN FEB MAR APR MAY JUN JUL AUG SEP OCT Nov DEC A. How many part-lime residents are present each month? B. How many days per month are they present? , w 31. TEMPORARY & TRANSIENT USERS JAN FEe MAR APR MAY JUN JUL AUG SEP OCT , NOV DEC A, How many total visitors, attendees, travelers, campers, patients or customers have access to the water system each month? B. How many days per month is water accessible to the public? 32. REGULAR NON-RESIDENTIAL USERS JAN FEB MAR APR MAY JUN JUL AUG SEP acr Nov DEC A. H you have schools, daycares, or businesses connected to your water system, how many students daycare Children and/or employees am present each month? B. How many days per month are they present? 33. ROUTINE COUFORM SCHEDULE ' Requirement Is exception from WAC 248.290 JAN 14* FEB 14" MAR 14" APR 14" MAY 14' JUN 14* JUL 14" AUG 14" SEP 14" OCT 14" NOV 14" DEC 14" 35. Reason for Submitting WFI: ❑ Update - Change ❑ Update - No Change ❑ Inactivate ❑ Re- Activate ❑ Name Change ❑ New System ❑ Other 36. I certify that the information stated on this WFI form Is correct to the best of my knowledge. SIGNATURE: DATE: PRINT NAME: TITLE: DOH 331.011 (Rev. 08103) • Department of Health Copy Page: 2 W ID WS Name 89500 TUKWILA WATER DEPARTMENT DOH 331 -011 (Rev. 06/03) Total WFI Printed: 1 Department of Health Copy Page: 1 • APPENDIX E INTERTIE AGREEMENTS - KCWD #125 • • City Of Tukwila 6200 Southcenter Boulevard Tukwila Washington 98188 (206) 433 -1800 Gary L VanDusen, Mayor TO: FROM: DATE: SUBJECT: MEMORANDUM Byron Sneva, Public Works Director Phil Fraser, Senior Engineer April 25, 1986 Mechanically Operated Interties - Tukwila /Water District 125 @ 52nd Avenue South /Interurban Avenue South and South 131st Place /44th Avenue South In compliance with my 8/8/85 and 1/9/86 letters, the enclosed 4/15/86 let- ters (2) of Phil Botch and Associates, Inc. - Water District 125 requests Tukwila enter into two emergency intertie agreements (attached) for the purpose of operating these two constructed interties. These interties are in compliance with the requirements of the Seattle Water Department (see 1/16/86 letter of Harry Pratt) allowing such interties for emergency pur- poses. Also enclosed are the following: A. Signed -off inspection permits. B. Metro right of entry agreement (52nd /Interurban Avenue Intertie) C. As -built plans (2 sets) D. 1/17/86 Memo: Status Report. E. Executed agreements (2) (one copy each) by 12/5. Per the agreements, section 2 charges for use of these interties will be at "new" water rates + $0.05 per 100 cubic feet. Recommended is the City enter into these two agreements with Water District 125. cc: City Engineer Ttmeemer file Finance Director Sr. Accountant r77y cia- Attachments (11) =).4•'41 • CITY OF TUKWILA & WATER :RIcr NO.42 //C FI AGREEMENT TO PROVI_�L '.�'iER SERVICbATE 2.14 • THIS AGREEMENT made this / Cf day of between Water District No. 125, King County, and i y of Tukwila (municipality). WHEREAS, Water District .No. 125 and City of Tukwila (municipality), are corporations organized under the laws of the State of Washington; and WHEREAS, the State Department of Social and Health Service recommends Water Service Agreements between adjacent water utilities; l and WHEREAS, the Comprehensive Plan of Water District No. 125 anti- cipates such needs; and WHEREAS, this intertie is of mutual benefit to provide emergency water supply for the City of Tukwila and Water District No. 125; and NOW THEREFORE it is hereby agreed as follows+ 1. Scope of Service The City of Tukwila will provide the following service to Water District No. 125 . Upon declaration that an emergency exists by Water District Nu. 125, the City of Tukwila will provide water to Water Die.: 1.41 No. 125. Location of meter will bet 3. 131st P'_. and 44th Ave. E. Size and type of meter will be: • 6" Meter Number or identifications Meter will be owned bys Water District No. 125 Meter will be maintained bys Water District No. 125 Meter will be installed and paid for bye Water District No. 125 Meter will be read bys City of Tukwila Hydraulic gradient provided by the City of Tukwila at meter will bes (max.) 390 NGL (min.) N/A HCL Estimated available flow will bes - (max.) 1,000 GPM (min.) N/A GPM Estimated annual consumption will bes (max.) 0 MC (min.) N/A MG Intertie valves will be normally! Closed 2. Cost of Water Charge; for wwtpr will he t`.e current wholesale rate charged by the Seattle Water Department for "New" water as detiaed by the Water Purveyor Contract plus iC.C5 per 100 cubic feet of water used. 3. Indemnification Water District No. 125 , agrees to indemnify and hold harmless the City of Tukwila from any claim arising from this agreement. Furthermc :e, it is understood and agreed that the City of Tukwila make :: no warranties or assurances as to water availability, pressure or volume at any given time. It is • • understood that if the City of Tukwila's water service to the interconnection point is temporarily interrupted for repair or aniemergency, the City is not obliged to provide an alternative source of supply. The City of Tukwila does, however, warrant that it will not, except for reasons such as the foregoing, interrupt the water supply to the interconnection. 4. Notification InIthe event Water District No. 125 requires emergency water supply through this intertie, Water District No. 125 shall notify the City of Tukwila in writing prior to commencing and upon termination of use. Notification shall include the time, date, and meter reading at commencement and termination of use. 5. Reciprocity of Agreement In; the event that the City of Tukwila desires to purchase water from Water District No. 125 through the aforementioned mettr, Water District No. 125 agrees to provide water under the same conditions agreed to by the City of Tukwila in paragraphs 1, 2,'and 4, provided: the City of Tukwila agrees .to indemnify and hold harmless Water District No. 125 from any claim arising from this agreement. Furthermore, it is understood and agreed that Water District No. 125 makes no warranties and assurances as to water availablility, pressure or volume at any given time. It is understood that if Water District No. 125's water service to the; interconnection point is temporarily interrupted for repair' or an emergency,, Water District No. 125 is not obliged to provide an alternative source of supply. Water District No. 125 does, however, warrant that it will not, except for reasons such as the foregoing, interrupt the water supply to the interconnection. 6. !Term This Agreement,' except for the water rate, shall extend for ten years from the date hereof, and shall continue indefinitely thereafter unless terminated by either party for good cause shoxn. CITY OF TUKWI7A, WASHINGTON WATER DISTRICT NO. 125 ASIDENT OF THE BO RD 0 WATER 1ISSIONERs. . BY: 1 4 ie. �?�� SECRETARY OF THE BOARD OF WATER COMMISSIONERS ) coxn.ol . 26 -005 PERMIT. 1 rn o4 - �1 , C I TY OF TUc7 I LA tloo sOuTHCENTER ,.t vo. TtK W1LA. SA stt•s POPS CUT/ACCESS/SIDEWALK 1....1d11MSSILI ZATION /VTRIPING /S1O N110 IN IataIC RIGHT -CF•sAY P lets LOS/ T19RMfT LANDICAFt URINATION iii!silo MA 1 N EXTENS 1 c =POW ORAINAOK WATER MAIN EXTENSION ISIa* GATE L -4L-00 PIRATION DATE 7-21-86 moms Comm Ylae. Ferrency intertie T>•s ummotsIQNED Fant>ly AP*LIEs ram poillaslo+ To install emergency intertie per approved pt'ar and Public Works letter dated January 9, 1986. Prior to sign- off /use of this emergency inter a written approval to use this intertie shall be provided from the Water Superintendent for the City of. Seattle or his designee, per the requirements of the Seattle Water Department's Purveyor's Agreements with Water District No. 125 and the City of Tukwila. Use of this intertie shall be in accordance with the requirements of the City of Tukwila Public Works I r M' ILK'S liaR Dave Grage (433 -1860 1 ci ccheraimagocr C BWKATION OF WORK AT LUST 24 HOURS IN ADVANCE. SITE ADDRESS S 131 P1 5 44 Av S NAME OF PROJECT NAME or comma Water District #125 (co -user City of Tukwila) PHONIC PO Box 68147, Seattle, WA Water District #125 ADORES* CONTRACTOR =lass Sane as above Emeroencv Intertie 242 -4750 98168 ZIP ZIP FEES L oc PAN c; rcs s 10.00 (000/345.830) INSPECTION FEZ $ 15.00 : ) TOTAL Watved RECEIVED BY N/A RsCEIPT 1 Water District M125 ACCEPTS THIS Pled/1T AND AGREES TO ABIDE ICY ALL OP TLBO1I LA MI.N I C I PAL COOM . WE AGREE THAT THE CITY OF TUKNI OR ANY 0.A I IR ARISING As A RESULT OF Tip l s PROJECT. APPLICABLE SECTIONS CV THE C1 SHALL BC MELD HARMLESS rmom ? 4ITS *1101 HAY! ■ itil RE ISSUANCE OF THE PERM I-•- � APPLICANT'S SIGNATURE • M :1•FNE PERMIT E XP I RAT I O1N DATE SHALL R10GGJ I RE A R EAP►L I CAT I ON C) LA AT AN ADDITIONAL -FEE (433.1.45). PHI r r r sWM POR loss I NC=11 . CITY OF TU Kt I L A TITLE VSTrat CT CC: APPLICANT INSPECTOR CITY SHOPS BUILDING OFF I C I AL FINANCE DEPT. (1r APPLICABLE) FIRE DEPT. (IF APPLICABLE) 1 HERESY CE T I FY THAT THE PERM l T FOLDER 'HOSE NAME AND ADORES= APPEARS ON IS RECORD HAS FACTOR I LY MET THE STANDARDS AND CONDITIONS FOIR THK mom= APPROVED HERE F 1 ELD 1 NspCCT I CN DATE -!} 7— efo PERMIT NOT siGNED -orr BECAUSE CITY IICTtR INITIAL! DATE • • CONSL7LT11•T • ETTGIZV EECZ9 PIm. ,I a M. BOTCH c ASSOCIATES, INC. 11000 MAIN STREET April 15, 1986 City of Tukwila 6200 Southcenter Blvd. Tukwila, WA 98188 BELLEVUE, WASHINGTON 98004 TELEPHONE (206) 682.5300 Attn: Phil Fraser Re: Intertie at Interurban Ave. S. and 52nd Ave. S. Dear Mr. Fraser: On behalf of King County Water District No. 125, I am requesting that the City of Tukwila enter into an emergency intertie agreement with Water District No. 125. I understand you have in hand the refereneced agreement executed by the Water District. After • acceptance by the City, please forward the executed copies of the agreement to Water District No. 125 at P. 0. Box 68147, Seattle, WA" 98168. Attached are two copies of the as build drawings of the intertie. I inspected the installation of this facility and it was installed in accordance with plans approved by the City. If you have any questions, please call. Sincerely yo ,r • ILIP M. AB ASSOCIATES, INC. Roger C. Eberhart, P.E. Enclosure cc: Water District No. 125 RCE /ld 85.100 • City of Tukwila 6200 Southcenter Balmoral tic leArtilgton 98188 433.E Gary L VanDusen. Mayor January 9, 1986 Mr. Roger C. Eberhart, P.E. Philip M. Botch & Associates, Inc. 11000 Main Street Bellevue, WA 98004 RE: Emergency Intertie Between Water District No. 125 and the City of Tukwila at South 131st Place and 44th Ave. South (Schedule B on sheet no. 4 of 5 and 5 of 5) Dear Mr. Eberhart: The Public Works Department has reviewed and approved Sheet Nos. 4 of 5 and 5 of 5 for Schedule B Emergency Intertie only, per the following comments and requirements: Twenty -four hours prior to beginning construction of this emer- gency intertie, your contractor shall apply for and obtain a no -fee permit to carry out this work. This intertie shall be provided per the requirements of our City's Inspector (Dave Grage - telephone number 433 -1863) and the follow- ing conditions: 1. Prior to sign off /use of this emergency intertie, a written approval to use this intertie shall be provided from the Water Superintendent for the City of Seattle or his designee, per.the requirements of the Seattle Water Department's Purveyor's Agreements with Water District No. 125 and the City of Tukwila. Use of this intertie shall be in accordance with the require- ments of the City of Tukwila Public Works Director and all purveyor's agreements. 2. The emergency intertie shall be provided with a mechanism which allows the water to flow either direction. 3. The intertie shall be built by wet tap and per all field conditions of the City's Inspector. C. gberhart• P.E. M. • R°ge 1,986 Jan. 9, this matter. Please do not ?age 2 stions regarding h You r any at 433-1856• • hesitate � Sincerely •hil Prayer Senior En9 sneer Director Public Works ents Ted Preemire City Engineer Dave Gra9 cc: a r�s agreem eemeats /PuN Y° �. Piles: Interti• agreements Tukwila A /cd Enclosure (1) • CONiirt37.-Z71 Q I NC. t t o0o MAW snS>R 9a.lWg. WASHINGTON 4004 TELEPHONE 12081W-5300 January 7, 1985 Seattle Water Department Water Management & Engineering 521 - 2nd Avenue 10th Floor Exchange Building Seattle, WA 98104 Attn s Harry Pratt Res Emergency Intertie Between Water District No. 125 and the City of Tukwila Dear Mr. Pratt, As we discussed on January 3, 1986, Water District No. 125 requests approval of an emergency intertie between the 'dater District and the City of Tukwila. st ?lace This intertie will be rioca � at intertist will tben constructed jlto allow and 44th Avenue Sou water to flow only from Tukwila to the Water District. It will be inred, include a PRY, and operate automatically to provide addi- tional water for fire flows in excess of the 2,500 GPM the District's system can supply. This intertie will be temporary and will be discontinued -upon cod; e- :ion of the reconstruction of King County's Interurban bridge. If you have any Questions, please call. Sincerely PHILIP t1 & ASSOCIATES, INC. ogerJC. Eberhart, cc s Phil Fraser, City of Tukwila Water District No. 125 Document No. 82.40 ,C /jkc 11000 MAIN STRUT December 27, 19.85 City of Tukwila 6200 Southcenter Blvd. Tukwila, WA 98188 Attn: Phillip R. Fraser Res Temporary Intertis With Water District So. 125 Dear Mr. Fraser: tluIvut WASHINGTON 00004 TELEPHONE 120 641 -5.300 • In response to your August 12, 1985 letter (copy. enclosed), I sal resubmitting plans for s temporary intertie between the City of Tukwila and Water District tic. 125. All of your coaenta referred to the intertie at Interurban Avenue South and 42nd Avenue South. After construction of a major transmission main within the District and testing of it's effect, that intertie will not be necessary and has been dropped from our plans. However, the intertie at South 131st Place and 44th Avenue South is still necessary to provide adequate fire flow during the time the Interurban Bridge across the Duwamish is being reconstructed. That intertie is shown on the attached plans as Schedule 8 of Contract 85 -3. • I request the City allow construction of this intertie to pro- ceed and the facilities to remain in place during the bridge construc- tion. The Water District will remove the intertie upon completion of the bridge. The Water District. will serve the normal needs of the area through two PRV sources frog other pressure zones. The PRY in this intertie will be set to open only when fire flow to one of the major customers in the area exceeds 2,400 GPM. It is estimated that a maximum of 800 GPM will be taken during that peak demand. We fully expect that it 411 never be used. TLkwila's ten inch main will be live tapped, so no disruption of ser- vice is expected. In addition, backflow through the intertie will be provided by a check valve and all flows to Water District No. 125 will be metered. The District is prepared to pay Tukwila for any water taken at •ukwila's standard rates in effect at the time. Some water may be used during set up and testing of the intertie. City of Tukwila Tespqrary Intertie With WD 0125 • Page 2, December 27, 1.985 Also epolosed 11. pirait'request.to work within Tukwilei,right-of- way at Us site. It you,hsv• any questions or would like to discuss this intents fur- ther, please call. Sincerely yours, PHILIr . rCTCH A ASSOCIATES, INC. i Roger C. Eberhert, P.E. Enclosure Co Water District No. 125 Document No. 82.26 RCE/jko cc: Ted Freemire File: 85751101 - 8 Enclosure: (1) 1:114-11-6-TID JE3pTCI 1 & As L p I'ES, INC' 11000 MAIN STREET BELLEVUE. WASHINGTON 98004 TELEPHONE (206) 88.2-5300 April 15, 1986 City of Tukwila 6200 Sout c WA n 9a 188 Blvd. Tukwila, Attn: Phil Fraser Res Intertie at S. 131st P1. and 44th Ave. S. Dear Mr. Fraser: 5 , I am requesting that On behalf of King County Water District No. 12ntertie agreement wth the City of Tukwila enter into an emergency I understand you have in hand the refereneced 125. After acceptance by the Water a ttrict to by the Water District. acceptance to Water agreement executed Y copies of the agreement City, Please forward the executed 68147, cseattle, WA 98168. District No. 125 at P. s of the intertie. I Attached are two copies of the as build drawing llation of this facility and it was installed in inspected the insta accordance with plans app roved by the City. If you have any questions, please call. Sincerely yours,. INC. PHILIP M. ;.1 H & ASSOCIATES, oger C. Eberhart, P.E. Enclosure cc: Water District No. 125 RCE /ld 85.101 [, q. r All DATE CO. DATE .4.0 CITY 'OF TUKWILA & WATER DISTRICT NO. 125 AGREEMENT TO PROVIDE WATER SERVjo 4.f%�4 -∎ /S4 la2.S� ,9w6.tsa^�s THIS AGREEMENT made this / 4)" day of , 1 q between Vater District No. 125, King County, and Cot Tukwila , (municipality). WHEREAS, Water District No. 125 and City of Tukwila (municipality), are corporations organized under the laws of the State of Washington; and VHEREAS, the State Department of Fcci /1 and Health. Service recommends Vater Service Agreements bete .s- 'adjacent water utilities; and VHEREAS, the Comprehensive Plan •:.:+later District No. 125 anti- cipates such needs; and VHEREAS, this intertie is of mutual benefit to provide emergency water supply for the City of Rukvila and Vater District No. 1251 and NOV THEREFORE it is hereby agreed as follows, 1. Scope of Service The.-City of Tukwila will provide the following service to Vater District No. .125 • Upon declaration that an emergency exists by Water District .No. .• 125, the City of Tukwila will provide. water .to .Vater. District No. 125. . Location of meter will bee Interurban Ave. S. & 52nd Ave. S. Size and type of meter will be: 4" Meter Number or identification: Meter will be owned by: Water District No. 125 Meter will be maintained by: Water District Ho. 125 Meter will be installed and paid for by: Water District No. 125 Meter will be read by: City of Tukwila ' Hydraulic gradient provided by the City of Tukwila at meter will bes (max.) 360 ROL (min.) N/A ROL Estimated available flow will bet (max.) 1,000 GPM (min.) N/A GPM Estimated annual consumption will bes (max.) 40 MG (min.) N/A MG Intertie valves will be normally: Closed 2. Cost of.Vater Charges for water will be the current wholesale rats charged by the. Seattle.Vater Department for "New" water as defined by the Water Puri:yor Contract plus $0.05 per 100 cubic feet of water used. 3. Indemnification Vator District No. 125 _, agrees to indemnify. and hold harmless tits City of Tukwi3.c from any• claim arising from this agreement. furthermore, it is understood and agreed that the City of Tukwila makes no warranties or assurances as to water availability, pressure or volume at any given time. It is /y9- understood that if the City of Tukwila's water service to the interconnection point is temporarily interrupted for repair or an emergency, the City is not obliged to provide an alternative source of supply. The City of Tukwila does, however, warrant that it will not, except for reasons such as the foregoing, interrupt the water supply to the interconnection. 4. Notification In the event Water District No. 125 requires emergency water supply through this intertie, Water District No. 125 shall notify the City of Tukwila in writing prior to commencing and upon termination of use. Notification shall include the time, date, and meter reading at commencement and termination of use. 5. Reciprocity of Agreement. In the event that the City of Tukwila. desires to purchase water from Water District No.. 125 through the aforementioned meter, Water District No. 125 agrees to provide water under the same conditions agreed to by the City of Tukwila in paragraphs 1, 2, and 4, provided: the City of Tukwila agrees to indemnify and hold harmless Water District No. 125 from any'claim arising from this agreement. Furthermore, it is understood and agreed that Water District No. 125 makes no warranties and assurances as to water availablility, pressure or volume at any given time. It is understood that if Water District No...125's water service to the interconnection point is_ temporarily interrupted for repair or an emergency, Water District No.. 125 is not obliged to provide an alternative source of supply. Water District No. 125 does, however, warrant that it will,not, except for reasons such as the foregoing, interrupt the water supply to the interconnection. 6. Term This Agreement,` except for the water rate, shall extend for ten years from the date hereof, and shall continue indefinitely thereafter unless terminated by either party for good cause shown. CITY OF TUKWILA, WASHINGTON 2Ti&.1.7"° WATER DISTRICT HO. 125 BY: R)fSIDENT OF THE BOARD OF ATER `COMMISSIONERS. / SECRETARY OF HE BOARD OF WATER COMZIISSIONERS • City of Tukwila 6200 Southcenter Boulevard Tukwila Washington 98188 Gary L VanDusan. Mayor MEMORANDUM TO: Byron G. Sneva, P.E., Public Worm's Director FROM: Phil Fraser, Senior Enginee DATE: January 17, 1986 SUBJECT: New Interties with Water District 125 This is a status report regarding the two interties that are being provided between the City of Tukwila and Water District 125. Last summer, a permanent intertie was constructed at Interurban Avenue South and 52nd Avenue South. Correspondence to Water District 125 through Phil Botch and Associates required that certain paper - work be provided the City -and approval for activating this permanent intertie be obtained through the Tukwila City Council prior to its use. Roger Eberhardt of Phil Botch and Associates is now putting this information together so it can be submitted to our City Council in the next two to four weeks. (See Phil Fraser's letter of August 8, 1985 for the permanent intertie). Currently, the construction of a temporary intertie at the inter- section of South 131st Place and 44th Avenue South has been approved to be used on an emergency basis. Also, water District 125 is now producing requested paperwork and approvals through the Seattle Water Department t� assure the City - that all conditions of the purveyor's agreements between Water District 125, Tukwila and the Seattle Water Department have been met. It has been assumed by staff that because the intertie located at South 131st Place and 44th Avenue South is of a temporary nature (tied to the timeline of rebuilding the Interurban Avenue bridge - King County is scheduled to build it within one year, beginning April of this year) that City Council approval is not necessary for such a temporary use of the City's water system. Once this King County bridge has been constructed this intertie will be abandoned by Water District 125 and the City of Tukwila. cc: City Engineer Roger Eberhardt, Phil Botch & Assoc. Tukwila Maintenance Shops Water District 125 •p t s r. ∎ 2 . . a- 2. GiT e71EAmic Enclosure (1) 2 ay. /cd • Co trI-TIIVo SZNCIN7CECIR..9 M. BOTCH & .A , INC. 11000 MAIN STREET January 10, 1985 BELLEVUE WASHINGTON 98004 TELEPHONE (206) 682 -5300 Seattle Water Department Water Management & Engineering 821 - 2nd Avenue 10th Floor Exchange Building Seattle, WA 98104 Attn: Harry Pratt Re: Emergency Intertie Between Water District No. 125 and the City of Tukwila Dear Mr. Pratt: rr.. 1 r.JL. . '' Tn! r1c T! ..• • On January 7, 1986, I requested approval of an emergency intertie with the City of Tukwila. That intertie will be located at the intersec- tion of South 131st. Place and 44th Avenue South. The Water District also requests approval of an additional emergency intertie between the Water District and the City of Tukwila. This intertie will be located at the intersection of 52nd Avenue South and Interurban Avenue. The intertie will be constructed to allow water to flow from Tukwila to the Water District and vice versa. It will be metered and manually operated to provide water if the normal supply lines are shut down for an emergency or repair. If you have any questions, please call. Sincerely] 'yours, PPHILIP OTCH & ASSOCIATES, INC. Rog ' C. Eberhart, cc: Phil Fraser, City of Tukwila Water District No. 125 Document No. 82.44 RCE /jkc See Attached Drawings Note open cut along 52nd Avenue South. This permit is valid for 4O calendar days from The applicant shall comply with all State and local laws or ordinances. The . applicant shall save the City harmless from any and all damages which may accrue to any person or property because of this installation or the maintenance thereof. Work . performed under this permit shall include: ... • 1). 24 hours prior to construction the contractor shall notify the City Inspector, Pat Brodin, at 433 -1854. • 2) Prior to construction all utilities in the vicinity shall be field located. NOTE: For City of Tukwila utility Iodates call 433 -1860. 3) Detours within the public right of way shall be in accordance with the current edition of the Manual On Uniform Traffic Control Devices. 4)' For work within public road - no open cut allowed unless specifically approved. City of Tukwila Approved by: Title: • G`+Y Date Approved: --2;! ; S • carrsvt..'rs:+a 11000 MAIN STREET January 31, 1986 City of Tukwila 6200 Southcenter Blvd. Tukwila, WA 98188 Attn: Phil Fraser BELLEVUE WASHINGTON 98004 TELEPHONE (208) 882 -5300 Re: Mechanically Operated Intertie Tukwila /Water District No. 125 Interurban Ave. South and 52nd Ave. South Dear Mr. Fraser: Enclosed for your reference is a copy of your August 8, 1985 letter approving the plans and establishing the conditions for activating the, referenced intertie. Also enclosed are a letter of approval from the Seattle Water Department for the intertie and a Right -of -Entry Agreement from Metro authorizing access to the intertie meter.. The facilities have been constructed in accordance with the approved plans and all conditions of your letter have been complied with. The enclosed Agreement to Provided Water Services is submitted for review by the appropriate City Staff and approval by the City Council. Please return an executed copy of the agreement to Water District No. 125; P.O. Box 68147; Seattle, WA 98168. If you have any questions, please call. Sincerel !1 a ILIP M & ASSOCIATES oge 1 C. ' . • rhart, P.E. Enclosure cc: Water District No. 125 Document No. 82.95 RCE /jko 0 City of Tukwila . 6200 soffit Boulevard Tukwila Washington 98188 433.1800 Gary L VanOusen, Mayor August 8, 1985 Phillip M. Botch & Associates 11000 Main Street Bellevue, Washington 98004 RE: MECHANICALLY OPERATED INTERTIE:.WATER DISTRICT 9125 /TUKWILA Plan Approval Dear Sirs: The Attached plan has been reviewed and approved by Public Works per the following comments and conditions: 1. 24 hours prior to beg inning work, Water District 0125 Contractor shall apply for and obtain a no fee Street Use Permit to provide an Intertie between Water District #125 and City of Tukwila Water distribution systems. 2. 24 hours prior to carryino out this work, Water District 0125 Contractor shall apply for and obtain an Excavation Permit (Permit Fee = 5100.00) and provide necessary bonds and insurance, per the City's Excavation Ordinance. 3. The construction of this intertie has been authorized through the Public Works Director and City Engineer prior to City /W.D. a125 agreements through Council /Commissioners. However, this intertie will not be allowed to become operable and it is recognized that it is built without guarentee of use until the following arrangements are complete: A. A contract is executed between Tukwila and Water District #125 for use of this intertie, including charge rate for water use, conditions by which intertie is allowed, amount of water committed to run through intertie, and du ration of intertie agreement. B. Appropriate authorizations through the Seattle Water Department officials allowing anmendment to Tukwila's /S.W.D. /WD =125's .erveyor agreements, allowing for this intertie. 90 calendar days are allowed by Tukwila for WD #125 to secure agreements acceptable to Tukwila, as described above. After the 90 day period, Tukwila has the right to to require WO #125 to remove this intertie and restore the properties to their original condition, all at WD 125's expense, if the appropriate agreements described above have not been fully executed by all parties. AuCUSL a, 1:g17 Phillip M. Botch & Associates Pape 2 4. A copy of the right of entry onto the :;etro Park and Ride Lot properties shall accompany the permits. Nessa.ry easements allowing either #125/ Tukwila or Seattle Water Department personnel access to these facilities shall be provided prior to sign off of these permits. 5. Blocking shall be provided on main line and bends, per the requirements of the City's inspector. 6. The new lines shall be wet tapped onto the City's lines, and tested per the City inspector's requirements (AWWA) 7. Surveying in of this line shall be coordinated with Metro's Park & Ride design consultants and Metro staff. The vault and valves to be provided at the final sidewalk grade, coordinated with Metro staff. It is understood by this plan reveiw that the use of the intertie is intended to be reciprocal, with the operations of this intetie per requirements of the City, including prior notification and authorization by the City. The sinole meter in the Vault is to be mechanically turned around to allow metering in either direction. If you have any question regarding this matter do not hesitate to call me at 433 -1E56. �hil Fraser Senior Engineer cc. Public ,Works Director City Engineer City Clerk Finance. Permit File Enclosure: (1) .Z Sincerely, F ?, 'Afe- '1'\ Chief Technical Advisor a 0 F: HLP : j e cc: Phil Fraier, City of Tukwila Frank Pearson, W. D. 125 • Seattle Water Department Kenneth is Lo..tl++en. Superintendent Charlie lbw. AArter January 16, 1986 Phillip M. Botch and Assoc. 11000 Main Street Bellevue, WA 98004 Attn: Roger C. Eberhart, P.E. Res Emergency Intertie Between W.D. No. 125 and the City of Tukwila Dear Mr. Eberhart: • RECEIVED JAN 21 1986 r Assoc Thank you for your letter of January 7th, advising us of the intention of the two water utilities to construct a temporary emergency intertie at South 131st Place and 44th Avenue South including a pressure regulator valve such that water will flow only in event of fire flows in excess of 2,500 GPM. In response to your letter of January 10th an intertie is hereby approved between the two water utilities, for emergency operation located at 52nd Avenue South and Interurban Avenue. For the record will you please provide a copy of the intertie agreement(s) -after being signed by the two water utilities. Thank you for your attention to this matter. Call me if you have any questions. Seattle Water Department— Exchange 8wtd,ng. tttn Floor 821 Second Avenue. Seattle. V.asmngton 98104 • RIGHT OF LITIT AGREEMENT This Agreement made this 9 day of C1-0BC94-, 1985, by and between Water Dlstriot No. 125 (the District herein) and its assigns, and the MUNICIPALITT OF METROPOLITAN SEATTLE (Metro herein). This Right of Entry 1s given the District and its assigns by Metro for the purpose of designing, installing, constructing. reading, and repairing a water meter with all connections, manholes and appurtenances thereto together with the right of ingress to and egress from over, across, along, in, upon and under the property described in the attached Exhibit A. . Metro, the District and its assigns, by granting and accepting this Right of Entry respeotively, mutually covenant and agree as fol- lows 1. This Right of Entry will became null and void at such time as the property described in Exhibit "A• is conveyed to the City of 2Lkwila for street purposes or December 31, 1987, whichever shall first ocour. 2. By executing this Right of Entry Agreement. Metro does not waive any legal remedies available to it for just compensation. In the event the property described in Exhibit •A` is not conveyed to the City of 1Lkwila before December 31, 1987, as contemplated above, then if requested by Metro, the District and its assigns shall remove all facilities installed under this Right of Entry at its own expense or purchase an easement for said facilities based on the fair market value of the easement rights to be acquired. 3. The District and its assigns shall protect and save harmless Metro from and against any and all claims, damage to or loss or destruction of property whatsoever suffered by Metro, their successors and assigngs, tenants, licensees and invitees because of the installa- tion and construction of said water meter, but the District and its assigns shall not be so obligated in the event of the negligence of Metro, their successors and assigns, tenants, licensees and invitees causing such damage, loss or destruction.' 0. The District and its assigns shall, upon completion of construc- Lion of any facilities described herein, remove all debris and restore the surface of the property as nearly as possible to the condition in which it existed at the date of this Agreement. 5. This Right of Entry is subject to such leases, licenses and per- mits heretofore granted by Metro or predecessors in interest affecting said property as may be currently valid at law. KING COUNTY WATER DISTRICT NO. 125 By: MUNICIPALITY OF METROPOLITAN SEATTLE By: re t ,2r' r Jr) :l R e Titles Right.ot•Way b Property Supervisor Document No. 70.59 • DOCUMENT N0. 69.13 WD /125 TUIYILI INTERTIE EXHIBIT 1 PROPERTY DESCRIPTION FOR RIGHT OF ENTIT PERMIT 1 S ?RIP OF LJID 10 FEET WIDE, 5 FEET EACH SIDE OF THE CENTER LINE DESCRIBED AS FOLLOWS: CGMMENCING IT 1 BRASS CAP MONUMENT LOCATED AT THE INTERSECTION OF INIERURBAI AVENUE SOUTH AND 52ND AVENUE SOUTH; THENCE SOUTH 46 14•37" E1ST, 100 FEET ALONG THE CENTER LINZ OF 52ND AVENUE SOUTH 13 PROPOSED FOR THE RIGHT -OF U &T DEDICATION TO Tat CITT OF TUEIILA; THENCE NORTH 43 °45'23" WEST, 14.58 FEET TO THE EXISTING NORTH RIGHT4F -WAY LII FOR 52ND AVENUE SOUTH, T1 POINT OF BEGIN- NING; THENCE NORTH 431'45'23n WEST, 15.42 FEET TO THE PROPOSED RIGHT- OF-WAY LINE FOR 52ND AVENUE SOUTH, END OF THIS DESCRIPTION.' A G R Z E M E N T • THIS AGREEMENT is effective on the last date of ac- ceptance indicated below and is between the CITY OF TUKWILA (hereinafter the "City "), a city incorporated and existing under the laws of the State of Washington and WATER DISTRICT NO. 125, KING COUNTY (hereinafter the "District ") , a water district incorporated and existing under the laws of the State of Washington; WHEREAS, an industrial water user, Seattle Render- ing Works, Inc., owns and operates a plant •lying within the corporate limits of the City and which has been served by the City's water utility; and WHEREAS, the parties agree that the interests of all concerned would be best served by the District providing water service to the above mentioned . property of Seattle Rendering Works, Inc., under the terms sat'forth below; stall a WITNESSETU: IT IS AGREED by and between the parties as follows: 1. Installation of Service. The City will in- new 6 -inch water distribution line on the property of Seattle Rendering Works, Inc., the cost of which is 'estimated at $15,000.00 and which will be paid for by the City. 2. Connection to District's Line. The aforemen- tioned new service will be connected to the District's 6 -inch main which crosses the railroad tracks outside and northwest of the entrance to the Seattle Rendering Works, Inc. plant. 3., Flow Meter. The City will install a 6 -inch flow meter and vault in the new service at the west property line of the,Seattle Rendering Works, Inc. 4, Easements. The City will obtain and later.as- sign to the, District all necessary easements from the landowners M & L Investments and BNSF Burlington Northern Railroad. The ' escri tion of the Seattle Rendering Works, Inc. property legal d P . is as follows: That portion of C. E. Brownell Donation Claim more particularly described as follows: Beginning near the West line of Section 13, Township 23 N, Range .4 E.W.M. at a concrete monument which is 1,510.74 feet South of and 2,143. 89 feet West of the Northeast corner of said donation Claim and running thence Due West parallel to the. North line of said Dona - tion Claim 1,715.29 feet toaalpoi tho eof oot West of the Most Westerly parallel to said ern Pacific Railroad; thence p thence rail North 27 °21'30" West 668.61 feet; - south 69'22'40" west 47.44 feet to an iron h pipe on the Westerly line of the right o wan of said Northern Pacific Railroad, which thence pipe is the true point . of beginning; continuing South 69'22'40" West 190.00 feet to a second iron pipe at the top 9 Bank of the Duwamish river; thence continuing south 69 °22'40" west about 30 feet to mean -2- high water of said Duwamish river as same has averaged for past five years; thence along said High water line Southeasterly to said Westerly line of right of way; thence North- westerly along said Westerly line of right of way about 290.0 feet to the.true point of beginning. Reserving therefrom an easement for use of premises owned by grantors to north _of above described tract on and over a strip of land 30 feet wide adjacent to said Northern Pacific right of way extending from Northerly line of above described tract Southerly to South side of grade crossing of said railroad right of way as said grade crossing now exists or as said grade crossing may be reconstructed. Situated in Ring County, Washington. 5. Transfer of Ownership. After completion of con- , struction, the City will transfer ownership of the new service and underlying easements to the District, which will then pro- vide permanent water service to the Seattle Rendering Works, Inc. property. 6. Payment by District. The District will pay the City for its construction and financing costa incurred in the installation of the aforementioned new service as follows: cash, without interest, if paid within ninety .(90) days of January 1, 1979; or over a period of not more than ten (10) years, in installments with payments of no less than 10 per cent of the total, paid no leas than annually, with interest of nine (9) per cent per annum from April 1, 1979, on the declining balance. 7. Security Agreement. The District ('Debtor') hereby grants to the City ('Secured .Pasty') a security interest in all of the property described in the Bill of Sale executed, -3- as provided in Paragraph 5 above, together with all increases therein, all added and substituted parts and equipment, tools, parts, accessories, supplies and improvements therefor. All of said property . is located in Xing County, Washington. This security agreement is given to secure the payment and performance of all indebtedness and obligations Debtor to Secured Party presently existing and hereafter arising, direct or indirect, and interest thereon. If any of the property is to be or to real estate, the description of -forth in Paragraph 4 above. ACCEPTED: December r9., 1978 CITY OF TUKWILA By. ni /`r • 4 Edg r D. Bauch, Mayor- • APPROVED: TERENCE R. MONAG P.E. Public Works DirOtor -4- of has been attached that real estate is set ACCEPTED: December, 1978. WATER DISTRICT NO. 125, KING CO Bye -'-d ;�' • /7"'y James I. Angle, President Board of Commissioners -I By IV/ / C. H. Walmer, Secretary Board of Commissioners , �. By , W. C. L. Wiese, Member Board of Commissioners • ; • • APPENDIX F INTERTIE AGREEMENT - HIGHLINE. • #CATER DISTRICT NO. 75, KING COUNT -= is ;�Lt ‘.i ■ APPLICATION and AGREEMENT (Not Binding Until Signed By Commissioners) Mew No. Nil 3/13/79 M.,.r Sii.: 12" Turbine Received With Application: Nil Intertie Ms undersigned. h.r.inefter called the "applicant." hereby makes application for .rater service from Water District No. 7S, King County. hereinafter Salted the "District." and in consideration that the said District furnish water. the applicant agrees to pay for the same at the rata and in the m provided or to be hereafter provided by the Board of Water Commissioners and to •bide by such other rules and regulation' es may be rn•d. by .solution of the Board of Water Commissioners of said District. The applicant further agrees that the Water District hereby ratans the right to large and collect such rates and enforce such penalties as may be provided by resolution of the Board end to temporarily discontinue the service at •ny tup. without notice. It is further .greed that in Cato the supply of water shall be interrupted or fail by reason of occident or any ether cause -whatsoever. the District shall not be liable for damages for such interruption or failure nor shell such failure or interruption for .ny period of time be 'std to constitute • breach of contract upon the part of the District or in any way relieve the applicant from performing the oblig.tiont of this retract. The District. in consideration that the applicant pay the charges and the rotes and abide by the rules. regulations end resolutions of the o.rd in force on the date of this •pplication. or as h.r.in•her enacted or amended. agrees to furnish water to the premises herein described accord. inq to the terms and conditions hereof. Applicant further agrees that he will protect and save harmless the District from 411 claims for damages -ccasioned by breaking or (.eking of any of the pipes end appurtenances used for the supplying of water. Applicant further agrees that in the rent he shell WI to pay the rates. charges and penalties as aforesaid, or if the resolutions. rules or regulations of the District ere in any respect elated by applicant, his agent. tenants or persons acting in his behalf. the District may disconnect the water at his own cost and chargyt licotion Accepted ' day of ,19 Accepted. By: ddezei f ty of Tukwila 6200 Snuthrpnter Blvd. 433 -1800 WATER DISTRICT COMMISSION Agent/Builder Address Telephone Bye kvo) T fiJ 044-' No. .YLE M. LINOBLAD. Chairman HENRY 8. LYLE. Secretary DIN N. CALDWELL. Commissioner • Water 2)i1rict 7/0.75, J<nz County Telephone 8240376 P.O. Box 68100. Riverton Heights Station SEATTLE, WASHINGTON. 98188 April 16, 1980 City of.Tukwila 6200 Southcenter Blvd. Tukwila, WA. 98188 Attn: Ted Uomoto Re: City of Tukwila /Water District No. 75 Water lntertie JERRY P. HARRIS General Manager MAXINE J. CONRAD Office Manager Office: 19863 28th A So CIv1VED arrorniottilk Dear Mr. Uomoto: This is a reply to your April 8, 1980 communication pursuant to several discussions that we have had about water service between our two utilities,.. The current configuration existing at S. 180th St. and Andover Park West, contemplates water flowing in either direction be- tween Water District No. 75 and the City of Tukwila. This concept was recommended by Mr..Segale of the Segale Industrial Park. His thoughts were that a somewhat better fire rate might be obtained if there were two sources of supply. I specifically mention this because, with the inplications of demand type service proposed-from our two utilities, there is less likeli- hood that water will flow from Tukwila to Water District No. 75. The bypass at this location will become of emergency na- ture only. We have reviewed the requirements for implementing demand ser- vice between_our two utilities. We forsee about four areas that must be addressed as follows: A feasibility study with a computer print -out will give us a hydraulic analysis of your. system. This will be necessary. Such a study was performed several years ago. Since the original study, the Segale Indus- trial Park has been developed, the McCann Industrial, Park has been developed, and a number of additions and betterments have been accomplished in our two systems. In fact, there is now an intertie between the City of Tukwila and the City of Renton and another intertie between the City of Tukwila and the City of Kent. The hydraulic analysis must therefore be updated to deter- mine the implications of these It would be our impression that this work should proceed. immediately because much of our design is dependent upon this result. We estimate the cost of this study, including about six different flow configurations, or conditions a flow, at about'$9,400.. The Segale Industrial Park has been having.internal.prob- lems due to a "locked system" resultiog.from the.several pressure reducing valves that they have. The changes that we contemplate will necessitate a hydraulic opera - ted pressure relief valve to prevent excessive pressures from occuring within our system. A design has been per- formed for this equipment. We estimate the cost of this installation at $5,600. We have reviewed the print -out of the City of Seattle monitoring that was performed on the City of Tukwila. system in the year of 1979. We find that the major de- mand on your system occurs i.n the morning._. Water District No. 75 experiences a secondary peak at about this time. This indicates the need for demand metering and print- outs so that the flow can be monitored to avoid a respon- sibil :ity to the City of Seattle by Water District No. 75. We estimate the cost for this metering equipment at about $1,500. In our original proposal for providing service to you several years ago, we indicated the necessity for "balanc- ing" your meters. The reason for this is that the com- puter print -out indicated that a number of your meters were non-operative during peak demand. This will occur if a pressure reducing valve is not properly adjusted and does not give recognition to the elevation at which it is installed. It-will be necessary to "fine tune" the adjustment of all pressure reducing valves in the system so that proper flow can be obtained from each unit during peak demand. This work was previously accomplished by your Water Superintendent, Ted Freemire. Ted has done sucb an excellent job at this, I thought that we might prevail on him to continue this work. We anticipate some involvement from our office during the time that Ted is making these adjustments. We estimate this cost at $1,200. The total estimated cost for adjustmants and "conversion" is estimated at $17,000. It is our suggestion that Water District No. 75 pay for the cost of the pressure relief valve in the Segale Industrial Park and share the cost of the demand metering. On this basis,. the City of Tukwila would pay $11,250 and Water District No. 75 would pay 56,350. ' • • After the proposed.system is operative, it is our suggestion that the City of Tukwila pay the standard charge for water through the meter as previously prescribed. • We will appreciate your consideration and concurrence in this proposal. Lyle Lindblad President of the Board of Commissioners LL /jvh WATER DISTRICT NO. 75, KING COUNTY RESOLUTION NO. 80- 10 -15N Resolution Approving A New Rate For Sale Of Water To The City Of Tukwila BE IT RESOLVED by the Commissioners of Water District No. 75 King County.that they hereby fix the following rate for the sale of water by the District to the City of Tukwila, in view of a new rate. imposed by the city of Seattle upon the WateD District: 250 per 100 cubic feet of water furnished by the District to the City of Tukwila. Passed by the Commissioners the 15th day of October, 1980. • Tuxes ila, Washington 9818 JLUU atJUL.Li ci ..�. APPLICATION FOR WATER METER INSTALLATION: Date: 3 -7 -79 •I hereby apply to the City of Tukwila for a water meter installation to the following property: Name of Owner: King County Water District # 75 ,Address: 19863 28th Avenue South, Seattle, WA 98188 •Number of meters 1 Size of meters 6" • atute of Applicant C. C. APPENDIX G INTERTIE AGREEMETN RENTON cc1ton i+tunicipal B4ilding • • 7,2 —/ � - '•P \ iMill /� venu•' South CAG -95— .0'i. ,tor. WA 98055 '% S ,'.• AGREEMENT FOR THE EMERGENCY SALE OF WAT .o , . WHEREAS, RENTON and TUKWILA may experience periodic water supply shortfall; WHEREAS, RENTON and TUKWILA recognize the public benefits of cooperation and collaborative problem solving; rWHEREAS, RENTON and TUKWILA are willing to sell water in an emergency at the existing system interties; . WHEREAS, the parties desire to enter into an AGREEMENT providing for the emergency sale of water. in NOW THEREFORE, IT IS AGREED AS FOLLOWS: 1) Term of AGREEMENT . The effective date of this AGREEMENT shall be ri dm r C 7 , 1995. The AGREEMENT shall be for a minimum of one (1) year and shall continue in full force and effect in . its present form. or as amended until R terminated by either party in accordance with Section 13 of this AGREEMENT. The rates and quantities of water sold are set forth in Sections (2), and (6). 2) Rate. For 1995 the BUYER shall pay to the SELLER for all water delivered at the rate of $1.35 per 100 cubic feet, which is the Seattle Water Department summer new water rate for 1995. The rate charged to the BUYER shall be adjusted each year on January 1st using the method described as follows. The rate charged by the SELLER shall be the larger of the following: 1) the current Seattle Water Department summer new water rate (in dollars per 100 cubic feet) or 2) [$1.24 per 100 cubic feet] times [the current City of Renton retail commodity rate (in dollars per 100 cubic feet)] divided by [$1.68 per 100 cubic feet]. 3) Metering. RENTON and TUKWILA shall each provide, and own and maintain, an appropriate metering device to measure the water flowing through the intertie. An interlocal agreement may be prepared to allow one party to operate and maintain the intertie and distribute the costs equally between the both parties. As soon as either becomes aware of flow of water through the intertie that party will notifyy the other. If prior notification is feasible, the party requesting the water shall provide a description and documentation of the emergency condition to the other party. Each party will monitor its meter(s) on a regular basis. 4) Priority and Continuity of Service. The determination of whether water is available for emergency sale shall be at the sole discretion of the party delivering (selling) the water. In the event of a condition requiring restrictions on the delivery of water, the party delivering the water shall have the right to restrict or interrupt service. The party providing water may voluntarily interrupt or reduce deliveries of water if it determines that such interruption or 00'01 giS MO SUMS AINn00 9NIA ad OO:Et :TO ESOT -ITWSS 9504111053 Agreement for the Emergency Sale of Water between the City of Renton and the City of Tukwila Page 2 (5) reduction is necessary or reasonable. Except in cases of emergency and in order that operations will not be unreasonably interfered with, the party providing water shall give the party buying water, reasonable notice of any such interruption or reduction, the reason therefor, and the probable duration thereof. The party buying water shall discontinue or reduce service from the intertie upon reasonable notice. Service shall be reactivated or increased again subject to the aforementioned conditions. Water Quality. The quality of water delivered under this AGREEMENT shall be subject to' applicable provisions of State and Federal law and rules and regulations of the appropriate State agency governing water quality, and subject also to applicable provisions of City ordinances relating thereto and not inconsistent herewith. Each party agrees to deliver water which shall be of no less quality than is delivered to its other retail customers throughout the service area. 6) Quantity of Water. Depending upon demand conditions, water availability (including conservation impacts), as well as aquifer behavior, in the water systems, each City may make available, for purchase by the other City, up to the approximate amount of two million seven hundred thousand (2,700,000) gallons per day, at flow rates varying from zero to 1,875 gallons per, minute, from the existing emergency intertie located on the West Valley Highway. 7) Coordination and Project Management. A) Operations: LI C For the purpose of operating the water system intertie between RENTON and TUKWILA, =: 'r4 coordination shall occur between representatives of the systems, who are: e"4 Water Maintenance Manager, City of RENTON `C't!' and 0 Water Manager, City of TUKWILA III (or their designated representatives) Cr) The coordination shall consist of exchanging operational information such as when the intertie is used, the respective flow rates, pumping capacities, back - pressure sustaining valve setpoints, system pressure effects, water quality characteristics, and other operational information as necessary to accomplish the purposes of this AGREEMENT while maintaining safe operation of both systems. B. Engineering: For the purposes of coordinating engineering issues regarding.the RENTON•and TUKWILA intertie, the following personnel shall be the designated representatives: Water Utility Supervisor, City of RENTON and City Engineer, City of TUKWILA (or their designated representatives) • ... Agreement for the Emergency Sale of Water between the City of Renton and the City of Tukwila Page 3 9501111053 The engineering issues addressed shall include operational criteria as well as hydraulic behavior, water quality considerations, and other appropriate engineering issues. C. Administration: For the purposes of AGREEMENT administration and AGREEMENT modifications or interpretations, the following personnel shall be the designated representatives: Planning/Building/Public Works Administrator, City of RENTON and Public Works Director, City of TUKWILA (or their designated representatives) 8) Payment. The City providing the water shall read the meter once each month at approximately thirty (30) day intervals. Payment shall be made by the .City receiving water as soon as possible after receipt of statement and in any event, not later than the tenth (10) of the second month following the presentation of the bill. In the event a meter shall fail to register or obviously register incorrectly, the amount of water considered delivered through said meter shall be based upon the best . data available (e,g., recent . past. meter . readings, observations of fire fighting equipment in use) subject to negotiation by the cities.. 9) Penalties For Late Payment. The City selling water may assess a late charge on the City buying water for failure to comply with the provisions in Section (8). This charge shall be at the rate of twelve percent (12 %) per year. In the event that the City buying water should fail to make any payment for a period of sixty (60) days after the same becomes due, the City selling water shall have the right to terminate further water service without further notice, until such delinquency is cured. 10) Procedure for Amending the Contract. Either party can request the other to consider an amendment of the AGREEMENT. Any proposed amendments shall be made in writing. Amendments may be made if they are mutually acceptable to RENTON and TUKWILA and signed by both parties. Minor or operational amendments may be made by the Administrators. 11) Access to Facilities and Records. Each party shall be entitled to inspect the intertie facilities of the other at any reasonable time. Both parties agree to make mutually available such information or rccords regarding the intertie as are at their disposal and as may be reasonably necessary to properly implement any section of this AGREEMENT. 12) Non - Assignability. Neither this AGREEMENT nor any interest therein shall be transferred or assigned by either City without prior written consent of both Cities. 950 =111053 • 'Agreement for the Emergency Sale of Water between the City of Renton and the City of Tukwila Page 4 13) Termination. This AGREEMENT may be terminated in whole or in part by either party any time after one year from date of this AGREEMENT, upon ten (10) days written notice sent by certified mail to the other party. IN WITNESS WHEREOF, the parties have hereunto set their hands this day and year above written. CITY. F RENTON By: C fi .� \ ��..a \ f,,\,\_C. Earl Clymer; Mayor ,�.. APPROVED /AS TO LEGAL FORM: Larry Warren, City Attdrtiey H: DOCS :95- 108:JDW:pa CITY OF TUKWILA By:,4, i t{,), /(L;_ . John/ . Rants, Mayor ATTES /AUTHENTICATED: - e E. Cantu, City Clerk APPROVED AS TO LEGAL FORM: (I 9 Linda Cohen, City Attorney • l CAG- 079 -78 A G R E E M E N T THIS AGREEMENT entered into this 18th day of December 1978, by and between the CITY OF RENTON, hereinafter referred to as "Renton" and the CITY OF TUKWILA, hereinafter referred to as "Tukwila ". WHEREAS Municipal Corporations are given the power to contract under RCW 39.34 for cooperative Services, and WHEREAS it s necessary for Tukwila and Renton to enter'` into this Agreement to provide a water intertie system, and WHEREAS it is mutually beneficial to both parties to enter into this Agreement to provide emergency water flow and water supply primarily for emergency fire protection, NOW THEREFORE, • INCONSIDERATION of the mutual benefits conveyed hereby do agree as follows: 1. Both parties agree to cooperate in the construction of a water flow intertie system uniting the water supplies of the City of Renton and the City of Tukwila at a point on the West Valley Highway. 2. The intertie.system will be constructed by the City of Renton at the City of Renton's expense and ownership of said facility shall remain with the City of Renton. The City of Renton hereby agrees to operate and maintain said facility. 3. Both parties agree to permit the intertie system to remain open at all times except in cases of emergency, and then to close the facility only as long as the emergency dictates that the closure remain. If a closure is necessary the closing party agrees to notify the other party's Fire Department and Water Department immediately upon said closure. -1- '4. Both parties agree that the rate to be charged for water used under this Agreement will be at the rate of Eight Dollars ($8.00) per month fire protection service charge plus $0.33 per 100 cubic feet of water used. Billing for said charge shall be made in the normal: course of business and paid by the other party promptly upon receipt of the invoice. Failure to pay for water utilized under this Agreement or unless otherwise agreed this Agreement. 5. Either party may of its terms by written breach for use for other than emergency purposes, upon, shall be grounds for termination of cancel this Agreement for material notice served upon the other. party az least twenty (20) days prior to the proposed termination date. the breaching party removes the breach and performs under terms of this Agreement before the termination date, the Agreement shall 'reran in full force and effect. However, if the breach is not removed and continues, then the Agreement shall be null and void in all respects except for the obligation to make payments as defined for water used prior to the termination date. CITY OF TUKW'IIA By • ayor City Clerk Approed as t La ' enc e J . Wa rgn , City of Renton -'A t uorney for ,f1 CITY OFF RENTONN By Mayor By City Clerk ped..,nr • . OF R,y THE CITY OF RENTON `. AED: 7 MUNICIPAL BUILDING 200 MILL AVE. SO. RENTON. WASH. 98055 ,.; o oo ,. °: CHARLES J. DELAURENTI, MAYOR • DELORES A. MEAD I4 CITY CLERK 44pp. CO SEPIE1O Mr. Terence R. Monaghan Public Works Director City of Tukwila 6200 Southcenter Boulevard Tukwila, Washington 98188 Dear Mr. Monaghan:. . December 18,'1978 DEC 2 0 1978 We enclose herewith for your file copy of a water inter -tie agreement between the City of Renton and the City of Tukwila which has been signed by the Mayor and Deppty City Clerk and approved by Mr. Warren. Yours very truly, \PP:- CITY OF RENTON MEM:bh Enc. cc: Maxine Anderson, Tukwila City Clerk Maxine E. Motor. Deputy City Clerk • • • PUBLIC ■../0RK8 DEPARTMEN 8230 8outhcenter Boulevard Tukwila, Washington 98067 telephone ( 206 ) 242-2177 Date: August 16, 1978 To: Mayor Bauch From: Terry Monaghan, Public Works Director M E 61 0 R A N D U M • . COUNCIL ACTION 947 3 Subject: Emergency Intertie between the City of Tukwila and the City. of Renton Attached is a letter from the City of Renton requesting an intertie between the City of Tukwila and the City of Renton water systems. The intertie is pr000sed on the east side of the West Valley Highway at the common boundary of both jurisdictions. The purpose of the intertie would be for emergencies, particularly fire emergencies. As indicated in the letter; the cost of installing the intertie-/will be entirely borne by developers through the City of Renton. The status of one of these developments, the Benaroya project at S. W. 43rd Street (South 180th Street) is such that the need for the intertie is immediate. Our rate structure provides three options of charging for this intertie. These are: 1. TMC 14.04.240 - A demand charge of $115.00 per month for an 8" meter plus a commodity charge of.$0.33 per 100 cubic feet used in excess of 500 cubic feet. This is our regular customer rate for consumers within the City limits. 2. TMC 14.04.250 - A monthly fire protection charge of $8.00 per month for an 3" meter which is solely for water supplied for fire protection purposes exclusively and represents a service charge; no charge is made for the water drawn. 3. TMC 14.04.260 -•A demand and commodity charge as in item 1 above, or another rate fixed by the City Council as allowed under this section. I would propose a reciprocal rate structure of $8.00 per month fire pro- tection service charge wtih $0.33 per 100 cubic feet charge for water used. • In addition to the first cost being borne by Renton, the annual maintenance costs will also be borne by Renton. Also attached for your information is a copy of the intertie as designed, a letter to Warren Gonnason from me and a map showing the general location of the Benaroya project and the intertie. TRM /dp Enclosures Wit. .v 'may. ..1 i� ..0 - . .... ..� -.rte 9 IL 3 e�— 7. Alk e u .L.9 rs:: r11Dnri;2 IC3" 2.An?C`,r7 ?1 i S.3 ;_ ;:thcontor Eloulavord - 1- -7 T ukvzilo, bi ^J7 ,irl99ton • S ZJ i Y ; t©lphono [ 20:b 3 242 — 2177 Mr. Warren Gonnason, P. E. Public Works Director City of Renton 200 Mill Avenue South Renton, Washington 98055 Dear Warren: August 16, 1978 Renton /Tukwila Intertie I have received your letter of August 1, 1978 and have preliminarily reviewed the plan for the proposed intertie between our respective cities. With respect to the procedural aspects of the intertie, I would suggest that your consultant pursue concurrence and approval of the intertie with the City of Seattle Water Department and the Department of Social and Health Services. I would also suggest that a reciprocal water rate of $8.00 per month service charge for fire protection be established and agreed upon and $0.33 per 100 cubic feet be charged by either juris- diction in the event water is drawn at the intertie. As to the design of the system, I would like to to the vault to provide service for a sump pump and also potential dehumidification and heat in like to see spare conduit capacity in the vault control and telemetering. Consideration should the vault. see electrical power , lights in the vault the vault. I would for future supervisory be given to venting The manhole covers should be the gasketed and locking type. While these are all of the comments I have at this time, I will be passing along the plans to our Fire Department, who may have additional comments. On the more basic issued as to agreement to allow this intertie to become a reality, I will be discussing this with the City Council on Monday, August 21, and hope to have the approval necessary to authorize you to proceed. TRM /dp k p er�ely, ? , = �/t .... 6e ,( . �t t t.e { J4. _.. Terence R. Monaghan, P. E. 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Sleet Ad0111ett Ve.l:e.t • C 17edt•ew.. l c /ew 1�e P 1 -N • r•ec Gcp, to • C..wte /ww 10' C.wnccl.u.t SITE PLAN leek /`e ZO• Both end, / -B "Tee FL Z•B•G4 #c V.44, NJ.F/ ,- e•A...e/.. l-e' go•/iewd MJ deod t. W A.6 • 0 m Q .• ©I� t/ CON.. • • :e • • • i 0 Ch•A SM {/floss' v.,_ C. 497 To • 1••• . _. i.e, • / /,$y•,.. t1C :! C I s. •• /.s 1 let: - n. i 6a /117E'RIVg PIPING - o" Se•% • •• • ♦4 1 1 She.. J /.1..Aodl 1 -• jw- I .... SE GT/O N (E.•+ S. /es) CITY OF RE. OEPANTMt:NT OF CS. ME rE h /!::i•'I I -iWL 1<EN"r• /It/tc:•JILA If • us/ sgmo 1 now ai., Pa. 1 2 - it I ash St • . Ul . $ • t 1 la III I S I n sm IT Sar s 51 . • 2.. !: 1 1 • 1 7• 114 DPfl ..... 2. I .d V .aZ see Map 48 1 ••••••• ...• • •• •• • • . . • • '•• • . • • • APPENDIX H INTERTIE. AGREEMENT KENT • A G R E E M E N T THIS AGREEMENT entered into this 8- day of 1979, by and between the CITY OF KENT, hereinafter referred to as "Kent" and the CITY OF TUKWILA, hereinafter referred to as "Tukwila ". WHEREAS Municipal Corporations are given the power to contract under RCW 39.34 for cooperative services, and • WHEREAS-it is necessary for Tukwila and Kent to enter into this Agreement to provide a water intertie system, and WHEREAS it is mutually beneficial to both parties to enter into this Agreement to provide emergency water flow and water supply to meet Kent's needs during periods of peak demand and for emergency flow and fire protection in both cities, NOW, THEREFORE, IN CONSIDERATION of the mutual benefits conveyed hereby do agree as follows: . 1. Both parties agree to cooperate in -the construction of a water flow intertie system uniting the water supplies of the City of Kent and the City of Tukwila at a point•on the West_ Valley *H i ghw ay . 2. The intertie system will be constructed by the City of Kent,at the City of Kent's expense and ownership of said facility shall remain with the City of Kent. The City of Kent hereby agrees to operate and maintain said facility. 3. Both parties agree that the intertie system will not be operated except during periods when either party desires to obtain water from the other party. Whenever.either party wishes to operate the intertie, ten days notice shall be given to the other party, except that in the case of an.emergency, such notice shall not be required. Whenever operated, the operating party agrees to notify the other party's Fire. Department and Water Department immediately. 4. Both parties agree that the rate to be charged for water used under this Agreement will be at the rate of $0.33 per 100 cubic feet of water used. Billing for said charge shall be made in the normal course of business and paid by the other party promptly upon receipt of the-invoice. Failure to pay for water utilized under. this Agreement or for use for other than emergency purposes, unless other- wise agreed upon, shall be grounds for. termination of this Agreement. 411 5. Either party may cancel this Agreement for material breach of its terms by written notice served upon the other party at.least twenty (20) days prior to the proposed termination date. If the breaching party removes the breach and performs under terms of this .•Agreement before the termination date, the Agreement shall remain in full force and effect. However, if.the breach is not removed and continues, then the Agreement shall be null and void in all respects except for the obligation to make payments as defined for water used prior to the termination date. CITY OF TUKWILA CITY t KENT By . - �`- layor Mayor 2. Attest: By City Clerk roved as to Form: 1 A 1' City Attorney for City of Tukwila • 3. Attest: By • • •' t, 1 .?■•)./ () y Clerk roved as to Form: • City Attorney for City of Kent APPENDIX 1 UTILITIES CHAPTER FROM TUKWILA COMPREHENSIVE PLAN • • UTILITIES TUKWILA COMPREHENSIVE PLAN PURPOSE The Utilities Element profiles both City and non -City owned utilities operating within Tukwila. Utility facilities and services are inextricably linked to the development of land, determining whether it can be developed and when and how it develops. Tukwila relies on other public and private agencies to provide many of these services. The importance of this reliance and the land use implications of utility actions cannot be overemphasized. The utility services addressed in this element are sewer and water, surface and surface water management, solid waste, electricity, natural gas, and telecommunications. Sewer and water service are provided by the City and adjacent municipalities and special districts; surface and storm water drainage is managed locally, but because water follows topographic boundaries rather than city boundaries, interjurisdictional cooperative planning and management are a significant component. The remaining utilities are provided to residents and businesses through franchise agreements between the City and vendors or certification agreements between the state and the vendor. ISSUES Five key needs of issues must be addressed in meeting the utility planning the City: • Service Extensions. Planned extensions of utility services must be based on level -of- service standards. • Coordination of Service Providers. The City- managed utilities must be coordinated with adjacent purveyors who serve portions of the City. • Concurrency and Implications for Growth. Concurrency requires that utility plans, along with other capital facilities, be developed so that improvements, or the funds required for the improvements, are in place at the time they are needed. • Environmental. Sensitivity. Utility improvements often arise from environmental concerns, but may also result in additional environmental impacts, for example, from pipeline siting and construction and from drainage and groundwater management. Utilities TUKWILA UTILITIES PROVIDERS Water City of Tukwila City of Seattle City of Renton Creston Water Assoc. King County Water District #20 King County Water District #125 Highline Water District Sewer City of Tukwila City of Seattle City of Renton Rainier Vista Sewer District Val Vue Sewer District Surface Water City of Tukwila Electricity Puget Power Seattle City . Light Natural Gas Washington Natural Gas Other Solid Waste (franchise) Telecommunications December 4, 1995 115 TUKWILA COMPREHENSIVE PLAN Utilities • Residential Revitalization. City planned utility improvements and extensions must place priority on improving and sustaining residential neighborhood quality and livability. Planned utility system improvements include upgrading existing components and extensions of service into areas previously unserved. Level -of- service standards being adopted by the City for the utilities it manages will include response to federal and state mandates and will be in accord with the City's development vision and character. The six -year Capital Improvement Plan (CIP) addresses the important deficiencies that have been identified. Improvements to correct other deficiencies and those potentially developing over the 20 -year planning period will be addressed as funding allows in the annual updating of this plan. Water and Sewer The City of Tukwila primarily purchases all of its water from the City of Seattle under a contract, through year 2012, in which Seattle guarantees Tukwila a reliable supply. Tukwila's Comprehensive Water System Plan identifies areas of water supply and distribution deficiency, and the six -year Capital Improvement Plan proposes corrective improvements. Additional deficiencies exist, as identified in the Utilities Element Phase II Report. The Tukwila sewer system is exclusively a collector system with no treatment component. The Comprehensive Sewer System Plan identifies deficiencies in the system, and corrective improvements are proposed in the six -year Capital Improvement Plan. Certain areas of the City are served by other water and sewer purveyors which develop their own plans in coordination with the City of Tukwila. Tukwila's adopted Comprehensive Water System Plan and Sewer System Plan are adopted, by reference, as part of this Plan. Those system plans identify present and future improvements, establish certain required levels of service, and priorities for system improvements. Level of service standards are also established by applicable Board of health Regulations, the Uniform Plumbing Code, and the Uniform Fire Code. Consistent with State mandates, Tukwila will revise and update those system plans to assure consistency with this Plan, the Capital Improvement Plan, and other on -going City planning processes. 116 December 4, 1995 • TUKWILA COMPREHENSIVE PLAN Utilities Surface Water Management Tukwila's existing surface and stormwater drainage system consists of both drainage improvements and the natural drainage of the area. Except for a small area in the Ryan Way neighborhood, drainage is ultimately to the Green /Duwamish River. The City has a current Comprehensive Surface Water Management Plan. That Plan is hereby adopted by reference as a portion of this Plan. The Surface Water Management Plan contains an inventory of existing facilities and identifies current system deficiencies and projected improvements. The Comprehensive Surface Water Management Plan evaluates the system under present and future development conditions and formulates remedies for segments of the system where problems exist or are likely in the future as a result of growth and development. Currently proposed improvements are included in the Six -Year Capital Improvement Plan. Consistent with State mandates, the City reviews and updates its Surface Water Management Plan to assure consistency with this Plan, the CIP, and other on -going City planning processes. Solid Waste Collection, transportation, and disposal of solid waste in Tukwila is provided under franchise agreements with vendors and licensing agreements between the state and the vendors in most of the City. Tukwila does not require residents or businesses to subscribe to solid waste service, although 60 percent of the City's residents do so, and virtually all businesses have waste collection. Many of those who do not subscribe to these services take their waste to the Bow Lake Transfer facility, which is operated by King County. Electric Power "Electric power" involves both transmission systems and distribution systems. Tukwila's electric power is provided by Puget Power and Seattle City Light. - Puget Power's existing plans to increase service have conservation as a priority. Descriptions, maps, and inventories of existing and proposed electrical transmission facilities improvements to serve local and regional needs are presented more fully in Puget , Power's King County Draft GMA Electrical Facilities Plan. 1993. Distribution plans include line and station projects. Future distribution improvements will be required to meet the demands of Tukwila's projected growth. Seattle City Light's plans for future distribution capacity include additional feeder and substation capacity that is expected December 4, 1995 117 TUKWILA COMPREHENSIVE PLAN Utilities to meet demand through year 2020. Seattle City Light intends to meet electrical load growth through conservation acquisition. Washington Natural Gas Washington Natural Gas, an investor -owned utility, builds, operates, and maintains natural gas facilities serving Tukwila. Washington Natural Gas covers virtually all of Tukwila with their, main distribution lines. The only planned Washington Natural Gas project of interest to Tukwila through 2000 is the rebuilding of the South Seattle Gate Station in Renton. This will improve service to Tukwila by allowing for higher outlet pressure. Telecommunications In Tukwila, telecommunications utilities include telephone service, cellular telephone service, fiber optic transmission services, and cable television. TCI Cablevision of Washington, Inc., is currently franchised to serve the City. At present, US West is the main supplier of local telephone service in Tukwila, although this may change in coming years. Present telecommunications regulations require US West to provide adequate services on demand. Tukwila is served by two cellular telephone companies. GOAL AND POLICIES Goal 12.1 Utility services and facilities that meet the community's current and future needs in a safe, reliable, efficient, economic and environmentally responsible manner. POLICIES FOR CITY - MANAGED UTILITIES Service Extensions and Level of Service 12.1.1 Use adopted level-of-service standards to meet public health and safety requirements, address deficiencies, and assure quality of service. 12.1.2 Ensure that the City of Tukwila utility functional plans and operations meet applicable federal, state, regional, and county requirements- and regulations. 118 December 4, 1995 • i • TUKWILA COMPREHENSIVE PLAN Utilities 12.1.3 Require the use of Tukwila's adopted level-of-service standards in the design and construction of all utility service extensions. 12.1.4 Base the extension and sizing of utility system components on the Comprehensive Plan land use element for the area. 12.1.5 Continue to meet or exceed federal minimum standards for the National Flood Insurance Program to better protect public health and safety and to achieve flood insurance premium discounts. 12.1.6 Ensure that new development and other actions do not cause significant adverse impacts on flooding, erosion, and natural resources in foodplains within and outside of Tukwila's jurisdiction. 12.1.7 Assume 100 year future buildout conditions in any new drainage basin studies and amend land use plans and regulations according to results. Coordination of Service Providers 12.1.8 Coordinate with other jurisdictions and agencies in planning and implementing utility operations, facility additions, and improvements located in or affecting multiple jurisdictions. 12.1.9 Participate in the regulation of all water, sewer, and surface water utility services within the City's eventual boundaries. 12.1.10 Consider annexing water and sewer providers when requests of or within the Districts occur, or to achieve efficiencies and minimum levels of service for customers of the Districts. 12.1.11 Coordinate and allow utility service outside City limits only when the need is caused by adjustments of City limits or when temporary service is necessary because of an emergency. 12.1.12 Establish and maintain franchises and working agreements with sewer and water utilities currently operating within the City limits to ensure that the level of service provided is consistent with the City's requirements and neighborhood revitalization plans. December 4, 1995 119 TUKWILA COMPREHENSIVE PLAN Utilities 12.1.13 Allow special- purpose sewer and water districts to continue to operate and serve Tukwila residents and businesses, when appropriate. Concurrency and Implications for Growth 12.1.14 Schedule and phase utility extensions to occur • concurrently with expected growth and development. 12.1.15 Approve .development only if adequate utilities are available when a need is created for those facilities, or within a reasonable period as approved by the City. Environmental Responsibility 12.1.16 Balance environmentally sound operations with cost - effective methods in water, sewer, and surface water management utilities operations. IMPLEMENTATION STRATEGIES + Public education programs on water quality, alternatives to toxics, and safe use and disposal of household toxics + Development of methods to eliminate point and nonpoint pollution sources associated with sewage disposal systems, including grease traps and oil and water separators and regular monitoring of infiltration and inflow through television inspection 12.1.17 Make conservation an integral part of Tukwila's utility operations and management. IMPLEMENTATION STRATEGIES + Conservation measures for each utility + Conservation as a means of deferring the development of new facilities or as a means of augmenting available resources + Water rates structured to encourage conservation + Conservation- conscious operation of all City facilities to provide a good model for the community + Conservation information for rate- payers 12.1.18 Allow development in lesser flood hazard areas if it can be built to withstand flooding without suffering significant 120 December 4, 1995. • • TUKWILA COMPREHENSIVE PLAN Utilities damage and without increasing flood and/or erosion hazards on upstream and downstream properties. 12.1.19 Restrict new development and substantial redevelopment in flood hazard areas. IMPLEMENTATION STRATEGIES + Restrict new development and substantial redevelopment outside the one -foot floodway to be delineated on the Flood Insurance Rate Maps + Require lowest finished floor elevations above the 100 year flood elevation + Restrict residential structures below 100 year flood elevation 12.1.20 Locate critical facilities and their access routes, such as hospitals, hazardous waste storage facilities, nursing homes, and fire and police stations outside the 100 year future condition floodplain. Design these facilities to withstand flooding impacts of 100 year future buildout. 12.1.21 Seek to reduce and do not increase the risk of severe flooding experienced by existing public and private developments. IMPLEMENTATION STRATEGIES + Prohibition on structures or fill in the floodplain that would cause an increase in the elevation of the "zero - rise" floodway. + Compensation for floodplain fill with equivalent excavation Facility Impacts 12.1.22 Design, construct, and maintain facilities so as to mini- mize their impact on adjacent neighborhoods and businesses. - IMPLEMENTATION STRATEGIES + Opportunities, such as advisory committees, for public participation in development and review of utilities' functional plans + Public input on siting facilities that may generate considerable off site impacts December 4, 1995 121 TUKWILA COMPREHENSIVE PLAN Utilities + Coordinated scheduling among utilities of improvements and additions, to limit disruption to the public Water Utility 12.1.23 Actively participate in determining a regional solution to Tukwila's water supply. 12.1.24 Provide reliable water service for domestic, commercial, industrial, fire flow, and water emergency uses. IMPLEMENTATION STRATEGIES + Response plan for water emergencies + An operations maintenance manual and program + A water quality monitoring program + Water reuse as a water supply source + Private wells where approved by the appropriate authority. + A water line replacement/enhancement program for deficient single - family residential areas Sewer Utility 12.1.25 Serve all existing and potential residences and businesses with a sewer utility. IMPLEMENTATION STRATEGY + A schedule and strategy to prioritize bringing sewer service to homes and businesses currently on septic systems Surface Water Management Utility. 12.1.26 Serve all Tukwila's residences and businesses with a storm and surface water utility. IMPLEMENTATION STRATEGY + A comprehensive surface water management plan consistent with other regulatory requirements to improve water quality 122 December 4, 1995 • • TUKWILA COMPREHENSIVE PLAN Utilities 12.1.27 Provide capital, maintenance, education, and enforcement programs as a function of the storm and surface water management utility. IMPLEMENTATION STRATEGIES + Require mitigation approval and funding for wetland and watercourse impacts prior to development + A signage program identifying important surface drainage connections and corridors 12.1.28 Require that new developments locate required storm water management facilities on site unless a regional facility benefitting a drainage basin is constructed, or storage is provided in the river, or it is a single-family short plat or smaller residential development. 12.1.29 Seek, design, and implement flood hazard reduction projects that are permanent, low maintenance flood protection solutions that meet multiple objectives such as flood control, water supply storage, water quality, recreation and fisheries protection. 12.1.30 Use the Department of Ecology stormwater management standards as a minimum for all projects, and where appropriate, consider utilization of other, more stringent standards, such as portions of King County's Stormwater Design Manual. IMPLEMENTATION STRATEGIES + Stormwater management plan + Levee and bank stabilization projects that include toe rock, setback areas, vegetated stream banks, and gentle riverward slopes. Utilize materials and placement methods that provide long term stability to the interior and face of the projects 12.1.31 Coordinate water quality improvement programs with adjoining jurisdictions whose surface waters flow into or through Tukwila. 12.1.32 . Gain 'appropriate easements or title to allow public access on new flood hazards reduction projects built with public funds. Limit access to uses that do not require additional right of -way or design modification to the project unless agreed to and funded appropriately, or increase risk of structural damage to the facility. December 4, 1995 123 TUKWILA COMPREHENSIVE PLAN Utilities 12.1.33 Cooperate with King County in its management and coordination of emergency public health, safety and welfare services before, during and after tlood emergencies within the County and coordinate emergency preparedness and response with all agencies involved in flood emergency response. IMPLEMENTATION STRATEGY + Notification of current and prospective flood hazard property residents and land owners of: — known flood risks — safety measures for persons and property — pertinent regulations = available disaster assistance POLICIES FOR NON - CITY -OWNED UTILITIES Non - City-owned utilities develop strategic and operational plans with varying degrees of input and involvement from the City. They set capacity and service levels on an area -wide basis, and rely on the local government's involvement to ensure that capacity is sufficient. New development utilizing non -City owned water and sewer utilities is required to obtain, as a condition of permit application, a letter of service availability which establishes that utility service meeting City level of service standards is either available or will be available prior to occupancy. The electric power and natural gas utilities project adequate capacity during the 20 -year planning period, assuming responsible use of these resources. Electric utility capacity is set regionally, with Tukwila's needs determined and provided for as part of an area -wide system. Similarly, natural gas is provided via a regional delivery system. With new technologies, telecommunications utilities project virtually limitless capacity within the planning horizon. Solid waste capacity is determined and provided by King County. Tukwila and other suburban cities participate in planning and contribute to reaching regional goals via their recycling and waste reduction strategies and practices. General Policies 12.1.34 Actively coordinate project implementation with individual utilities based upon Tukwila's Comprehensive Plan and development regulations. 124 December 4, 1995 i • TUKWILA COMPREHENSIVE PLAN Utilities 12.1.35 Require utilities operating in the right-of-way to obtain a franchise that includes service levels and requirements meeting Comprehensive Plan forecasts and other applicable City regulations. 12.1.36 Encourage utilities to consolidate facilities and minimize visual impacts of facilities where technically feasible. IMPLEMENTATION STRATEGIES + Shared towers, poles, antennae, trenches, easements, and substation sites + Use of existing structures by cellular communications + Telephone switching facilities enclosed in buildings compatible with the surrounding area 12.1.37 Encourage communication among the City of Tukwila, the Washington Utilities and Transportation Commission, and the utilities regarding cost distribution and rate - setting for existing and proposed facilities and services. 12.1.38 Utility services within the City shall be undergrounded based upon the Tukwila Comprehensive Plan and development regulations. Solid Waste 12.1.39 Establish and maintain regulations and programs for residents and businesses, designed to meet state and county solid waste reduction goals. IMPLEMENTATION STRATEGIES + Educational materials providing technical assistance on recycling, . composting, and other waste reduction methods + Evaluate the continuation of the transfer station pass program, and initiation of a centralized drop - off /collection of hard -to- recycle waste + Residential recycling program + Business recycling program 12.1.40 Assume greater control over the City's waste management system through contracts for services or other means, as current franchises expire. December 4, 1995 125 • TUKWILA COMPREHENSIVE PLAN Utilities 12.1.41 Encourage and actively participate in a uniform regional approach to solid waste management. Electric Utility 12.1.42 Payment for undergrounding shall be in accordance with rates and tariffs applicable to the serving utility. 12.1.43 Ensure that the development regulations are consistent with and do not otherwise impair the fulfillment of public service obligations imposed by federal and state law. 126 December 4, 1995 • Tukwila Tomorrow Comprehensive Land Use Plan UTILITIES ELEMENT BACKGROUND REPORT Planning Commission Recommendation July 2004 2004 SUPPLEMENT • CITY OF TUKWILA Department of Community Development UTILITIES ELEMENT BACKGROUND REPORT 2004 SUPPLEMENT TABLE OF CONTENTS PAGE I INTRODUCTION AND SUMMARY 2 II DESCRIPTION OF KEY ISSUES 2 III EXISTING CONDITIONS AND FUTURE NEEDS 2 Tukwila -Owned Utilities 2 Utilities Not Owned by the City of Tukwila. 4 IV RECOMMENDED GOALS, POLICIES AND STRATEGIES 7 APPENDIX A: UPDATED SERVICE AREA MAPS 13 1 Utilities July 9, 2004 UTILITIES ELEMENT BACKGROUND REPORT— 2004 SUPPLEMENT I - INTRODUCTION AND SUMMARY The Utilities Element Background Report Supplement 2004 updates conditions for City and non -City owned utilities. It describes service and situation ;changes since 1993, especially in surface water management, solid waste and telecommunications. Updated service provider maps are shown in the Appendix. Staff reviewed the Utilities Element after preparing the Surface Water Management Plan. The review showed that no policy changes were required, and that adopting a surface water manual was the only utilities - oriented amendment that the Growth Management Act required at this time. Tukwila will meet this. GMA -related need by adopting an updated Surface Water Design Manual and Surface Water Plan via separate ordinance before December 2004. Although no utilities - related policy changes are needed as a direct result of the Surface Water Management Plan, the Flood Plain Ordinance (2004) has made several policies out of date. New policies or wording is proposed. All other information contained in the 1993 Utilities Background Report remains valid. II - DESCRIPTION OF KEY ISSUES Staff recommends updating several policies for consistency with the 2004 Flood Plain Ordinance. III - EXISTING CONDITIONS AND FUTURE NEEDS Tukwila City -owned Utilities WATER SUPPLY SYSTEM The City of Tukwila operates and maintains a water distribution system with approximately 40 miles of water mains. It supplies over 8 million gallons of water to the residential and commercial customers of Tukwila. Seattle Public Utilities provides the water the City of Tukwila sells to customers. 2 Utilities July 9, 2004 1 i UTILITIES ELEMENT BACKGROUND REPORT — 2004 SUPPLEMENT Portions of Allentown, Duwamish, and Ryan Hill neighborhoods received upgraded new water systems since 1995. The City of Tukwila is using low interest, long -term loans from the Public Works Trust Fund to finance the upgrades of water systems within the City. The City is improving the cross- connection program by requiring businesses to install a reduced pressure backflow device to protect the water supply system when they change their plumbing system. Sewer Sanitation System The City of Tukwila operates and maintains a sanitary sewer collection system with approximately 33 miles of gravity and force sewer mains, and eight lift stations. The lift stations pump approximately 60% of all sewage in the City (approximately 460 million gallons). Since 1995, the Rainier Vista Sewer District has merged into the ValVue Sewer District. A portion of Allentown and the Duwamish neighborhoods received sanitary sewers. The City of Tukwila is using low interest, long- term loans from the Public Works Trust Fund to finance installation of sewers in the unsewered areas. SURFACE WATER MANAGEMENT SYSTEM Existing Conditions: The City currently owns, operates and maintains approximately '*the following: Facility Total Quantity Asphalt Berm 200 Linear Feet Ditches 1,000,000 Linear Feet Pipes 504000 Linear Feet Catch Basins and Manholes 12,000 Each Outfalls 75 Detention/Water Quality 19 Pump Stations 3 plus two in design *,4ctcrat.'- �quantitie�� eternti —ne after .. Utilities 3 dies July 9, 2004 UTILITIES ELEMENT BACKGROUND REPORT — 2004 SUPPLEMENT Changed Conditions: Since the 1993 Surface Water Plan, significant regulatory changes have affected surface water management, water quality, flood protection, and habitat protection activities. While developing the 2003 Comprehensive Surface Water Management Plan, staff evaluated applicable regulations, and anticipated revisions to those regulations, in order to identify program improvements that should be implemented. Clean Water Act Major water bodies are now classified by use according to state water quality standards. Each use has specific water quality criteria. The Green /Duvvamish is the only surface water within the City's jurisdiction that has updated surface water quality standards. Tukwila must comply with Phase II of the National Pollutant Discharge Elimination System (NPDES) permit implementation process. The City applied for an NPDES. Phase II permit in March 2003. The City will negotiate the permit with Department of Ecology, and will comply with all requirements once the permit is issued. Endangered Species Act (ESA): In 2000, Puget Sound Chinook salmon and the coastal -Puget Sound bull trout were listed as threatened. If the Puget Sound Coho are listed, the City may need to adjust its best management practices for road maintenance and other surface water management activities. The City implemented an ESA Screening checklist as part of the SEPA process. Salmon Recovery Act The Salmon Recovery Act was adopted in 1993/1994. The City of Tukwila serves on a committee from the local water resource inventory area (WRIA) which develops watershed projects addressing salmon habitat concems. The City identified several capital improvement projects that are linked to the WRIA 9 salmon recovery efforts. These projects do not currently have funding. The 2003; Comprehensive Surface Water Management Plan includes basin definitions, capital improvement projects, regulatory compliance, Low 4 Utilities July 9, 2004 UTILITIES ELEMENT BACKGROUND REPORT — 2004 SUPPLEMENT Impact /No Impact Development, and development restrictions. It divides the City into seven drainage basins and assesses current deficiencies. The new surface water ordinance will adopt 1998 King County Surface Water Design Manual, with amendments /exceptions needed to tailor the manual to Tukwila's needs. UTILITIES NOT OWNED BY THE CITY OF TUKWILA SOLID WASTE AND RECYCLING Solid waste and recycling services are neither universal nor compulsory in Tukwila. Approximately 65 percent of Tukwila households and virtually all businesses subscribe to solid waste and /or recycling services. The remainder self -haul to King County's Bow Lake and Factoria Transfer Stations, and other private yard debris facilities. Garbage collected in the City of Tukwila goes primarily to the Bow Lake Transfer Station bcated at S -188th and Orillia Road. This facility accepts only garbage and recyclables and does not handle yard debris. Garbage is ultimately trucked and disposed in King County's Cedar Hills Regional Landfill. Tukwila residents may dispose of hazardous waste at mobile wastemobiles provided by King County or at one of the City of Seattle's two hazardous waste sheds. Two haulers previously provided solid waste and recycling collection with territory, rates and service levels regulated ("certificated ") by the Washington Utilities and Transportation Commission. In March 2000, Tukwila entered a five -year contract with Sea -Tac Disposal, for residential solid waste and recycling, and commercial solid waste services. King's County Solid Waste Division provides solid waste disposal capacity at Cedar Hills Landfill at least through 2012. In partnership with cities, the Solid Waste Division is developing a waste export plan to maximize . competition for the disposal of the County's solid waste. Telecommunications Telecommunications services in Tukwila include cable and satellite television, Iandline communications (telephone), and cellular 5 Utilities July 9, 2004 UTILITIES ELEMENT BACKGROUND REPORT — 2004 SUPPLEMENT communications. Since 1995, tremendous growth in the Internet and advances 1 in broadband technology have transformed the telecommunications industry, and brought capital improvements including fiber optic systems in the rights -of -way and additional cell towers. Cable and Satellite Television Cable Television The City' of Tukwila has a non - exclusive franchise agreement with Comcast Corporation through 2009 to construct, operate, and maintain a cable system in compliance with the Federal Communications Commission (FCC) regulations. Comcast's network provides high - definition television capacity and high -speed Internet access through cable modems, and includes coaxial and fiber optic cabling systems deployed underground and overhead using utility poles, leased from power and telephone companies. i Satellite Television Satellite television competes directly with cable television by delivering hundreds', of channels directly to mini - dishes installed in homes, and businesses throughout Tukwila. Wireline Communications (Standard Telephone) QWEST, a "Baby Bell" formed with the breakup of AT &T, provides telephone; and data services to businesses and residents. Two central switching joffices serve Tukwila customers via copper wire, coaxial or fiber. The 1996 Telecom Act permits additional companies to offer subscribers new telecommunications services such as integrated voice and data access and lower long- distance prices. Voice communications using Internet telephony, usually called VoIP, is an emerging technology that uses the Internet to make phone calls. As VoIP technology matures, consumers are likely to switch from existing systems. Cellular Communications Cellular telecommunications provide mobile telephone communications via radios that send and receive signals from a network of receivers mounted on utility poles, towers or buildings located in private properties and within the right -of -way. Cellular communications companies offer digital voice, messaging, and high -speed wireless data services to customers. 6 Utilities July 9, 2004 UTILITIES ELEMENT BACKGROUND REPORT — 2004 SUPPLEMENT Customers can send text messaging via a wireless device, or take and send a picture to any email address. Several cell phone companies are licensed to operate in Tukwila, and throughout the region, within the guidelines set by the Federal Communications Commission (FCC). 7 Utilities July 9, 2004 UTILITIES ELEMENT BACKGROUND REPORT— 2004 SUPPLEMENT IV - RECOMMENDED GOALS, POLICIES AND STRATEGIES Tukwila will meet GMA requirements by adopting an updated Surface Water Design Manual and Surface Water Management Plan via ordinance prior to ; December 2004. No policy changes are required to the Comprehensive Plan Document. FLOOD PLAIN MANAGEMENT Several utilities policies became redundant or out of date when a new Flood Plain Ordinance was adopted in 2004. Although not strictly required by changes in the Growth Management Act, staff recommends adopting revised policy language at this time. The following matrix shows the Comprehensive Plan changes, which are recommended to address the 2004 Flood Plain Ordinance. 8 Utilities . July 9, 2004 UTILITIES ELEMENT BACKGROUND REPORT-2004 SUPPLEMENT Staff recommends the following revisions based on the 2004 Flood Plain Ordinance: Current section # Current wording New wording Action Rec 12.1.6 Ensure that development and other actions do not cause significant adverse impacts. . Ensure ::that new devetopmeritp within Reworded fc match upda �redeve %prneril:ranctother�actions the City "ofTukwriais'lunsdretionrdoe ,nat or cause:: .significanti ,adverse:.upstrearii downstreamv`fiooding 'erosion ndlriaturali. . resources trripa ts;1 12.1.18 Prevent: of. reduci'flooding -that adversely safety`and gehenif STRATEGIES • Delete c • Substitut impleme • WHY: Ni Flood Piz Ordinanc hazard if it be built affects- public'healthy areas can to !A/Wei:di IMPLEMENTATION -.,a. .,27, -�- • ...uiat us 'd° �9 es , ., . : iefiapmenl. =ait�i cii alit ciiissefitia l redevelopment:; I f=aeltitte4 ,iii,:t i .,lainst • Preveriicurriutaiii ei. effec o abstrti&oris :ir, a. aoct: zone b restricting: develo r mentand` otfier " r 'ease ii'i� base actions tii ero'in et v o i 0 ,tlooit Tiig.:o ,elea orifti • Reg iiree.Ytload:Fpro s rkturesi a Bove: _ t : �baserilacsd efevat dnfwkie is e . ilt'ii a •,flead(zo e • Encourage, use,o :f ciw rm Developm ent wh :.rel apt iris ria 12.1.19 E"nsuretf e�GtvkaTukcwi la's - continued • Delete c impleme • WHY: Nr Flood Pt Ordinan( ina aura' partiopatid': in::ttie' Nttional`,'Roo hazard areas. IMPLEMENTATION STRATEGIES f-- substantial-Feelevelefafftent Iliisurat riaRrog`ra IMPLEMENTATION • Perfotlical , rEevierrti STRATEGIES and uiidate'the. City 'of Tukwila.'s.flood. piairr rianagerrrer s aiiidaid"searid'Ifo Fzone-constrietron 9 Utilities July 9, 2004 UTILITIES ELEMENT BACKGROUND REPORT -2004 SUPPLEMENT Current section # Current wording New wording Action Rec perrnitprocess 1 1be .1cli reateel en the Flood (- Heed- elevation 12.1.20 - . 1 • Delete p • Why: 1. Conflicts Manages 2. This con. fadlitie5 plain, till be built 1 acccc routes j sued as`hosprttl 6 r�; : r -� ` : set' «r�-.., g . ' 7 • =rr .... ,.� . ;; ~� .• ° :. _ z; -- = ' ' 12.1.21 Seek to reduce and do not increase the risk of severe flooding experienced by existing public and private developments. IMPLEMENTATION STRATEGIES • Prohibition on structures or fill in the floodplain that would cause an increase in the elevation of the "zero- rise" floodway. • d •...7 "" `• n � e - a a � ,` nl" "�' " F' A: L�L+�.- 9 a d �,Le , a a _ Delete sector Strategy anc clarify • WHY: 1. Not reg. 2. This was. within Ti 3. The Floc rraiise Itve Therefor do that 1 to indud the incrE There ar than cor _ _ pwf&eafun _ms a :caserttkcase:basi .� •.� -r,,,g , - -,1.-1;-,,;,-,7,,,...- "'.�u�::: !, <: w ,, - __.. __ : -��_ 10 Utilities July 9, 2004 • • • UTILITIES ELEMENT BACKGROUND REPORT- 2004 SUPPLEMENT Current section Current wording New wording Action Rec 12.1.28 Require onsite� eent . - �.... o andfeatmento • ent'• <anc ` nI ... ° 1., ' u ss a regional 1. REWORE 2. Clearer r closely w 3. Indudes and sma 4. A develc account regardle large sin, add sign and mu! surface. 4 - - - ' - surface water for botii-:thvelopn l , -- - _ - reder�elo meat: ro eels p ] _p 6Cility benefiting a drainage basin is is pr. "ovid`edin fire - ctoragc: the or constrvctedz pr- stocace is prouidcd in nvcr, it Green /DuwamiStr:River:i ',_. ___._ .._v .._ ._ 12.1.30 J:,c`ttic 61; tment: Ecology Apply 66 adoptedzsurfacd waterdesigr requirement °fob s.:and'otheri e oC wv " rsert 1. Reword im WHY: 2• WHY: Kr 1998 Kr Design D Water M allow an approval rnancial as the minim,ir'•rra of - - - a11.,devepmertpof - - - - actions; that. co 1 l` u d cau�s • . . r floodinr ,. erosion, water guallty and upstream aril nentq - 'I99&J i g GounnC habitat oroblecris both: , - rds, such dowr istrea ri,develop Ltand as portions of K — -- _ . °. Implementation Strategy adopt and apply -the` Se', Water'DeiikiMaiitidi 11 Utilities July 9, 2004 UTILITIES ELEMENT BACKGROUND REPORT— 2004 SUPPLEMENT Map Larsod City of Tukwila Electricity Providers •4• • Re. eOomEvotaru..A. 12 Utilities July 9, 2004 • • UTILITIES ELEMENT BACKGROUND REPORT — 2004 SUPPLEMENT City of Tukwila Non - severed Areas or co mip Map i j m z. Us* wL+m 13 Utilities July 9, 2004 UTILITIES ELEMENT BACKGROUND REPORT-2004 SUPPLEMENT City of Tukwila Sewer Districts 11111111 senator.* Maoss ma. .111111111111111111111111111111116 "Vim ■■•••• .11% •••10 1111....1■7141,•■ o••••••• ••■■••••M 14 Utilities July 9, 2004 • • • UTILITIES ELEMENT BACKGROUND REPORT — 2004 SUPPLEMENT City of Tukwila Water Districts GIS 15 Utilities July 9, 2004 APPENDIX J WATER RELATED CITY ORDINANCES • • • Title 14 WATER AND SEWERS Chapters: 14.04 Water Rates and Regulations 14.06 Backflow Prevention Devices 1 1 ns i-&16 5ov'er —Cha ges 1 1 14.24 Fire Hydrants 14.36 Utility Concurrency Standards • TITLE 14 — WATER AND SEWERS Chapter 14.04 Water Rates And Regulations Sections: 14.04.010 Definitions 14.04.020 Application to Connect Required 14.04.030 Contents of Application 14.04.040 Effective Date of Contracts 14.04.050 Connection Procedure 14.04.060 Installation and Apparatus Standards and Specifications 14.04.070 Connection Installation Fees 14.04.071 Regular Connection Charge 14.04.072 Special Connection Charge 14.04.074 Computation of Special Connection Charge 14.04.076 Regional Capital Facilities Charge 14.04.080 Connection Notification 14.04.090 Connection to Main 14.04.100 Additional Property Connected - Fee 14.04.110 Change in Size or Location of Connection 14.04.120 Application to Discontinue Water - Fee to Turn Water Meter On 14.04.125 Charge for Shut -Off Notices for Delinque Service Billings 14.04.130 Cost of Shutoff and Turn On by City 14.04.150 Accounts To Be in Owner's Name 14.04.160 Chapter Compliance Required 14.04.165 Water Shortage Response Plan 14.04.170 Emergency Change in Water Use 14.04.175 Violation of TMC 14.04.170 14.04.180 Water Falling on Street or Sidewalk 14.04.190 Violation of TMC 14.04.180 14.04.200 City Control of Water Use 14.04.210 Use of Water Restricted During Fire 14.04.220 Right of City to Shut Off Supply 14.04.230 Meter Ownership and Maintenance 14.04.240 Rates for Metered Water 14.04.250 Fire Protection 14.04.260 Rates Outside City Limits 14.04.270 Payment of Charges - Delinquency 14.04.280 Failure to Receive Bill 14.04.290 Bathing or Discarding Substance in City Water System 14.04.300 Connection Without Permission 14.04.310 Supervisor Authority - Appeal to Council 14.04.320 Payment by City for Fire Hydrant Supply 14.04.330 Temporary Water Meters 14.04.010 Definitions A. "Department", wherever used in TMC 14.04, means the Department of Public Works. Any refer- ences to City supervisor in this Title shall be deemed to refer to the Department. B. "Person", wherever used in TMC 14.04, means and includes natural persons of either sex, associations, partnerships and corporations, whether Printed January 14, 2003 Page 14 -1 TUKWILA MUNICIPAL CODE acting by themselves or by a servant, agent or employee; the singular number includes the plural and the masculine pronoun includes the feminine. (Ord. 1770 §4, 1996; Ord. 1766 §1(part), 1996) 14.04.020 Application to Connect Required Any person desiring to be connected with the City water supply system shall make application therefor to the Department. (Ord. 1770 §5, 1996; Ord. 1766 §1 art). 1996) 14.04.030 Contents of Application In addition to the requirements for an application specified in TMC 18.104.060, an application for a water service connection shall contain a contract on the part of the person making the same, to pay for the water applied for at the rate and in the manner specified in such contract, and shall reserve to the City the right to charge and to collect the rates and enforce the penalties provided for in TMC 14.04, in the manner herein provided, to change the rates at any time by ordinance, to temporarily discontinue the service at any time without notice to the consumer, and shall specify that said contract is subject to all the provisions of TMC 14.04 and of any ordinance of the City relating to the subject hereafter passed, and shall provide that the City shall not be held responsible for any damage by water or other cause resulting from defective plumbing or appliances in the property supplied with water, installed by the owner or occupant of said property, and shall provide that in case the supply of water shall be interrupted or fail by any reason, the City shall not be held liable for damages for such interruption or failure, nor shall such interruptions or failures for any reasonable period of time be held to constitute a breach of contract on the part of the City or in any way relieve the consumer from performing the obligations of his contract. (Ord. 1 770 §6, 1996; Ord. 1 766 §1(part), 1996) 14.04.040 Effective Date of Contracts All contracts shall take effect from the day they are signed and rates shall be charged from the day the property is connected with the City water supply. (Ord. 1766 §1(part), 1996) 14.04.050 Connection Procedure Upon the presentation to the supervisor of the receipt for the installation fees, the supervisor shall cause the property described in the application to be connected with the City's water main by a service pipe extending at right angles from the main to the property line and including : a stopcock placed within the lines of the street curb, which connection shall thereafter be maintained and kept within the exclusive control of the City. (Ord. 1766 §1(part), 1996) 14.04.060 Installation and Apparatus Standards and Specifications The current requirements of the Tukwila Munici- pal Code, the Tukwila Public Works Department, the Tukwila Fire Department, the Rules and Regulations of the Washington State Department of Social and Health Services, the Seattle /King County Plumbing Code, American Water Works Association Standards, the American Public Works Association Standards shall be met and apply to any and all water main installations, extensions, service connection, irrigation sprinkler connections, hydrant connection, fire sprinkler and fire main connections, and branches hereinafter installed in the City. The following minimum sizes, standards of design, construction and quality of material shall apply: 1. Residential water service connections shall be a minimum of 3/4 -inch in diameter, and shall con- sist of standard galvanized pipe, copper tubing or PVC and polyethylene (ultra -high molecular weight) pipes as approved by the current Seattle /King County plumbing code for sizes up to and including 3/4 -inch in size. 2. Water service connections to other than single- family residential shall be a minimum of one inch and shall use standard galvanized iron or steel pipe, copper tubing or pipe, or class 52 ductile iron pipe, or PVC and polyethylene (ultra high molecular weight) pipes in line not used for fire or fire sprinkler lines. 3. All pipe and fittings shall be rated for pres- sure of twice the minimum working pressure of 150 pounds per square inch plus a surge allowance of 100 pounds per square inch. 4. All mains, extensions and appurtenances thereto shall be constructed of a minimum class 52 ductile iron pipe and approved fittings. 5. In areas zoned for industry or commerce, mains shall be a minimum of eight inches in diameter unless a larger size is required by the Public Works Director. 6. In areas zoned residential, mains shall be a minimum of six inches in diameter unless a larger size is required by the Public Works Director. • 7. All plans and specifications for water main extensions and branches must be presented to the City Public Works Department for review and approval. 8. Permits to install water mains, extensions, valves, hydrants, fire sprinkler connections, fire mains, irrigation sprinkler connections and branches shall be secured from the City Public Works Department before commencing any installation. 9. A street repair bond to assure restoration may be required by the Public Works Director prior to issuance of a permit. 10. Application for water service connections shall be filed with and approved by the Public Works Director before the installation of a water service connection is made. 14 -2 Printed January 14, 2003 11. Water service connections shall be installed in strict conformance with all standards and permit conditions by a contractor duly licensed and bonded in the State of Washington for such installations. (Ord. 1766 §1 (part), 1996) 14.04.070 Connection Installation Fees A. The fee for administration, inspection and turn- on for a new water service connection shall be $50.00 payable at the time of application for connection. B. The water meter shall be installed by the City water utility. The cost of the meter installation shall be payable at the time of application for connection. The estimated cost shall be paid to the Finance Director or the person appointed to make collections for the water department, before the work or installing the meter is initiated. Whenever the estimated cost is not sufficient to cover the total expense for labor and materials, the deficit shall be charged to the property for which installation was made and to the owner thereof. Any excess payment shall be returned to the person applying for the installation. (Ord. 1766 §1(part), 1996) 14.04.071 Regular Connection Charge In addition to the reimbursement of the cost of meter installation required, the property owner seeking connection to the water system of the City, and in order that such property owners shall bear their equitable share of the cost of the City's entire water system, shall pay prior to connection to a City water system, a regular connection charge in accordance with the following schedule: Meter Size" Charge Meter Size Charge $ 1,600.00 3/4 inch $ 60.00 4 inch . 1 inch 100.00 6 inch 3,600.00 1 -1/2 inch 225.00 8 inch 6,400.00 2 inch 400.00 10 inch 10,000.00 3 inch 900.00 12 inch 14,400.00 (Ord. 1766 §1(part), 1996) 14.04.072 Special Connection Charge In addition to the regular connection charge imposed under TMC 14.04.071, a special connection charge shall be paid by the owners of properties which have not been assessed or charged or borne the cost of private development of mains or laterals or borne an equitable share of the cost of the City water system. The special connection charge shall be computed as provided in TMC 14.04.074. (Ord. 1766 §1 (part), 1996) 14.04.074 Computation of Special Connection Charge A. The special connection charge imposed by TMC 14.04.072 shall be paid to the water fund and shall be computed as follows: TITLE 14 — WATER AND SEWERS 1. For distribution water lines The number of units of property to be served by water determined in the manner prescribed in RCW 35.44.030 and 35.44.040 for determining "assessable units of frontage" shall be multiplied by the average local improvement assessment per unit of frontage for distribution water in the City of Seattle for the year in which the water line to which the property is to be connected was constructed. 2. For trunk water mains - One cent per square foot of property wherever the property has not been previously assessed for trunk water mains constructed after 1966. B. The special connection charge for property abutting on a street in which a water line can be constructed or extended to serve such property shall be computed as if the water line were so constructed or extended. The special connection charge for property located back from the margin of the street in which the water line exists and outside the assessment district created therefor shall be made giving consideration to the distance of the property from the street margin. In no case shall credit be allowed for the cost of extra length of waterline required for connection to the City's water system; provided, that in cases where application of the foregoing formula to a particular property results in a charge which, because of unusual conditions, is in excess of charges to similar properties, the Finance Director is authorized to reduce the special connection charge to the amount charged to properties similarly situated. C. If the property for which a special connection charge has been paid is subsequently included in a Local improvement district for the construction of water mains or lateral lines of a similar nature, the amount so paid shall be credited to the assessment against such property and such amount shall be paid from the water and sewer fund to such local improvement district fund. (Ord. 1766 §1 cart), 1996) 14.04.076 Regional Capital Facilities Charge In addition to the regular connection charge imposed under TMC 14.04.071 and any special connection charges under TMC 14.04.072, a regional system growth fee known as the Regional Capital Facilities Charge (RCFC) shall be paid for all new residential, multi - family housing, or commercial service connections on or after January 1, 2003 for regional capital costs associated with new supply and transmission of water. Property owners shall pay the RCFC prior to connection to a City water system. The fee for this expense shall be established by the Cascade Water Alliance and passed through without additional markup. (Ord. 2001 §1, 2002) Printed January 14, 2003 Page 14 -3 TUKWILA MUNICIPAL COCE 14.04.080 Connection Notification Whenever the owner or occupant of any property connected with the City water supply system desires to use the water, he shall notify the supervisor and re- quest that the water be turned on to the property. The owner shall leave his portion of the service exposed in the trench until it has been inspected and the water turned on, when he shall immediately cover the pipe. (Ord. 1766 §1(part), 1996) 14.04.090 Connection to Main All water used for any purpose other than fire protection service shall be ;supplied through a meter. Every house or building supplied by City water must install its own separate service connection with the City main, and the house or building so supplied will not be allowed to supply water to others, except temporarily where there are no mains in the street. When a new main is laid in any street, owners of property on the street who are being supplied with City water from a private main or a connection to a private service shall make application for a tap and shall connect up with a separate service connection to the main in front of the property. (Ord. 1766 §1(part). 1996) 14.04.100 Additional Property Connected - Fee If additional property is connected, such property may be charged at double the rate for the time it is in use, and the service may be shut off and a charge of $25.00 will be made for turning on such service. In case water shall be turned off as provided in TMC 14.04.100, the same shall not be turned on again until . all rates and charges against such property have been paid in full.' (Ord. 1766 §1(part), 1996) 14.04.110 Change in Size or Location of Connection A change in the size or location of a service connection shall be paid for by the owner on the basis of the cost of materials and labor involved in making said change, plus administrative overhead. (Ord. 1766 §1(part), 1996) 14.04.120 Application to Discontinue Water - Fee to Tum Water Meter On ' Whenever any water customer desires to discon- tinue the use of water for a period of not less than one month, he shall make written application to have the water turned off and pay all arrears in full. A charge of $25.00 will be made to turn water on. No reduction of rates will be made for less than one month, or without the application prescribed in TMC 14.04.120. Work performed outside of normal working hours, due to customer request, will receive a minimum charge of $75.00. (Ord. 1766 §1(part), 1996) 14.04.125 Charge for Shut -Off Notices for Delinquent Water Service Billings A. When water service customers are 60 days in arrears, a shut -off notice is posted. There shall be a service charge of $10.00 on water accounts for all shut- off notices. This charge will be applied first before regular service charges are credited. B. All monies in arrears, which is defined as the amount owing eleven days after the billing date, are due upon receipt of a shut -off notice. To avoid water shut -off, arrangements for payment may be made with the Finance Director. (Ord. 1766 §1(part), 1996) 14.04.130 Cost of Shutoff and Tum -On by City When water has been shut off by the City for any cause and is turned on again or allowed or caused to be turned on by the owner without written application, no remission of rates will be made on account of its having been shut off, and the supervisor may then shut off the water at the main or remove a portion of the service connection in the street, and shall charge the actual cost of cutting out and reinstating the water supply to the owner of the property. (Ord. 1766 §1(part), 1996) 14.04.150 Accounts To Be in Owner's Name All accounts for water shall be kept in the name of the owner of the property for which the service was installed, and not in the name of any tenant. (Ord. 1766 §1 oart), 1996) 14.04.160 Chapter Compliance Required It is unlawful for any person to make any connection with any service or branch pipe thereof, or to make any repairs, additions, or alterations of any pipe, stop, or waste, or any fixtures connected or designed to be connected with the City water system, except in compliance with TMC 14.04. (Ord. 1766 §1(part), 1996) 14.04.165 Water Shortage Response Plan A water shortage response plan is required by the Seattle Water Department and by the public welfare to effect conservation of water during water emergencies. A water shortage response plan for the Tukwila water system, as required by WAC 248 -54- 205(3), shall be updated by the Council as may be required. (Ord. 1766 §16)art), 1996) 14.04.170 Emergency Change in Water Use A. Upon finding that an emergency situation exists, the Director of Public Works shall: 1. Immediately seek to communicate with the Mayor and Council through the fastest means feasible to advise them of this emergency situation and the reason for such restrictions; 14-4 Printed January 14, 2003 • • • • 2. Immediately take steps to notify the public within the service area affected through the media and other means to advise said water users of such emer- gency water conservation measures and the necessity thereof; and 3. Implement such measures and regulations as may be necessary to implement water use restrictions under this ordinance and the plan adopted in TMC 14.04.165. B. The Mayor, upon finding that an emergency situation exists, which threatens to seriously disrupt or diminish the municipal water supply, may order restrictions on water use so as to distribute the avail- . able supply on a just and equitable basis to all customers, including residential, industrial and com- mercial users who purchase water. C. Upon declaration of a water supply emergency by the Mayor, no water shall be used for nonessential outdoor uses including, but not limited to, irrigation of lawns, the washing of cars, driveways or other out- door surfaces by any customer at any residence, apartment building, commercial building, or property or structure except at such times and under those condi- tions as specified by the Director of Public Works. These restrictions are to be implemented even though more restrictive than the plan provisions and shall in no way limit indoor rationing provisions of the plan. (Ord. 1 766 §1(part), 1996) 14.04.175 Violation of Section 14.04.170 A. Recognizing that an emergency rate surcharge may be imposed upon the City for each day that water usage exceeds the consumption target goals established by the Seattle Water Department, effective control and enforcement of the water shortage response plan shall be implemented. B. The Director of Public Works shall be authorized to impose sanctions and /or surcharges upon those customers within the affected area who refuse or otherwise fail to comply with the emergency conservation measures directed by levying a surcharge in an amount not to exceed the sum of $100.00 per occurrence and /or disconnecting water service to said customers. C. The restrictions and surcharge shall not compromise the health, safety or welfare of the public. Exemption from the imposition of a surcharge may be granted by the Mayor or the Director of Public Works in the Mayor's absence, upon written request, if it is found that a surcharge will constitute an undue burden on the customer. (Ord. 1766 §1(part), 1996) 14.04.180 Water Falling on Street or Sidewalk It is unlawful for any person willfully to place any automatic sprinkling device or willfully to place or to hold any hose in such position or manner that water • TITLE 14 — WATER AND SEWERS therefrom falls on any person while on any public street or sidewalk. (Ord. 1766 §16)art), 1996) 14.04.190 Violation of Section 14.04.180 If any person violates any provision of TMC 14.04.180, the City shall shut off the water furnished to the property upon which such violation is made, and shall charge $25.00 for turning on the water. (Ord. 1766 §1(part), 1996) 14.04.200 City Control of Water Use The City reserves the right in case of a shortage of water from any cause to make an order forbidding or suspending the use of water for sprinkler or irrigation, or to fix the hours during which the same may be done, by proper notice. Any person violating such order shall have his water shut off by the City and shall pay a charge of $25.00 for having the water turned on again. (Ord. 1766 §1(part), 1996) 14.04.210 Use of Water Restricted During Fire It is unlawful for any person to use water for irrigation or sprinkling during the progress of any fire in the City, unless for the protection of property; and all irrigation and sprinkling shall stop when an alarm of fire is sounded, and shall not be begun again until the fire is extinguished. (Ord 1766 §16Jart), 19.96) 14.04.220 Right of City to Shut Off Supply The City reserves the right at any time, without notice, to shut off the water supply for repairs, extensions, nonpayment of rates, or any other reason, and the City shall not be responsible for any damage such as bursting of boilers supplied by direct pressure, the breaking of any pipe or fixtures, stoppages or interruptions of water supply, or any other damage resulting from the shutting off of water. (Ord. 1766 §1(part), 1996) 14.04.230 Meter Ownership and Maintenance All meters on services of consumers shall be and remain the property of the City. In all cases where meters are lost, injured or broken by carelessness or negligence of owners or occupants, and in the case of nonpayment, the water shall be shut off and will not be turned on until such charge and the charge for turning on the water are paid. In event of the meter getting out of order or failing to register properly, the consumer shall be charged on an estimate made by the supervisor on the average monthly consumption during the last three months that the same was in good order or from what he may consider the most reliable data at his command. (Ord. 1766 §1(part), 1996) Printed January 14, 2003 Page 14. -5 TUKWILA MUNICIPAL CODE 14.04.240 Rates for Metered Water A. The rates for metered water supplied within the City for commercial /industrial customers, in one month increments or any fractional part thereof, shall be in accordance with the following schedule: COMMERCIAL /INDUSTRIAL CUSTOMERS Size of Service Base Charge Size of Service Base Charge $ 100.00 3/4 inch $ 12.00 4 inch 1 inch 25.00 6 inch 150.00 1 -1/2 inch 35.00 8 inch 200.00 2 inch 50.00 10 inch 250.00 3 inch 75.00 12 inch 300.00 In addition, for each 100 cubic feet of water used, the rate for the monthly billing shall be as follows: January.- May $2.78 per 100 cubic feet Jame - September $3.83 per 100 cubic feet October - December $2.78 per 100 cubic feet ' B. Single - family customers (one dwelling unit): The base water charge will be $6.00 for each account. In addition, for each 100 cubic feet of water used, the rate shall be as follows: January - May $2.15 per 100 cubic feet June - September $2.98 per 100 cubic feet October - December $2.15 per 100 cubic feet C. Multi- family customers (more than one dwelling unit): The base water charge will be $6.00 for each dwelling unit. In addition. for each 100 cubic feet of water used, the rate shall be as follows: January - May $2.15 per 100 cubic feet June - September $2.98 per 100 cubic feet October - December $2.15 per 100 cubic feet D. Every person 62 years of age or older (if married, then either spouse) or every person totally and permanently disabled residing in a separately metered dwelling and who is paying directly for such separately billed service either as owner, purchaser or renter and whose individ ual disposable income if a single person, or whose combined disposable income, if a married couple, from all sources is less than $32,000 per year, shall pay a rate equal to 50% of all water service charges. Every such person shall file with the Finance Department their affidavit that he or she is qualified to receive the lower rate. Such affidavits are to contain information as required by the Finance Director in order to establish eligibility. Each affidavit will also include an unqualified promise to inform the City of any changes in financial condition that would disqualify the person for the special rates. The Finance Director may require affidavits on an annual basis if deemed necessary. E. These rates will remain in effect for the corresponding periods thereafter, unless there is an increase in the cost of purchased water to Tukwila. At such time, the City will amend its rates charged to customers per cubic feet by a mark -up percentage in order to recover these direct costs. (Ord. 2001 §2, 2000; Ord. 1766 51(part), 1996) 14.04.250 Fire Protection A. Any service connection to the main for a fire sprinkler system shall be approved in advance by the City, and shall be installed at the expense of the owner, and fitted only with such fixtures as are needed for fire protection and must be entirely disconnected from those used for other purposes. B. Any service connection other than fire sprinkler installed on private property for fire protection, and fitted with fire hydrants, stand pipes or other outlets for fire protection shall be approved in advance by the City. C. It is unlawful for any person to fail, neglect or refuse to give the supervisor or his duly authorized representative free access at all reasonable hours to all parts of premises supplied with water from the City mains, for the purpose of inspecting the condition of pipes, and fixtures, and noting the amount of water being used and the manner in which it is used. D. The rates for water supplied for fire protection purposes exclusively, shall be deemed service charges and shall be, for any one month or fractional part thereof, as follows: Size of Service Base Charge Size of Service Base Charge $ 80.00 2 inch $ 5.00 8 inch 3 inch 11.50 10 inch 125.00 4 inch 20.00 12 inch 180.00. 6 inch 45.00 Water used for any other purpose than for fire protection service shall be deemed as Theft III. (Ord. 1766 516)art), 1996) 14.04.260 Rates Outside City Limits The rates for water supplied to consumers not within the City limits shall be as follows: The same rate schedule as provided in TMC 14.04.240 and 14.04.250 shall apply. The above rates to consumers outside the City limits are subject to the same rates to consumers inside the City limits; provided, that nothing in TMC 14.04.260 shall prevent the City Council from fixing other and different rates for the sale of water to water districts; provided, that all meters for measuring water to outside consumers are installed within the City limits or within the limits of easements, franchises, or rights-of-way belonging to the City. (Ord. 1766 §1(part), 1996) 14-6 Printed January 14, 2003 14.04.270 Payment of Chaiges - Delinquency All water charges shall be due and payable on the first day of each and every month for the water consumed during the previous month and shall be paid to the City treasurer or to the person delegated by him to receive such monies. In all cases when the water bill becomes delinquent, the supervisor may shut off the water and shall not turn it on again until all arrearages have been paid. All bills will become delinquent on the tenth day of the month following the month that the water was consumed. (Ord. 1766 §1(part), 1996) 14.04.280 Failure to Receive Bill Failure to receive a bill will not be recognized as a valid excuse for failure to pay rates when due. Change of ownership of property and change in mailing address must be filed in writing with the Finance Director. (Ord. 1766 §1(part), 1996) 14.04.290 Bathing or Discarding Substance in City Water System It is unlawful for any person to bathe in or to throw any substance into any reservoir, water tank or impounding dams of the City water system. (Ord. 1766 §1(part), 1996) 14.04.300 Connection Without Permission • It is unlawful for any person to make connections with any fixtures or to connect any pipe with any water main or water pipe belonging to the water system or to open or to close any valves in the system without first obtaining permission so to do from the supervisor. • (Ord 1766 §1(part), 1996) 14.04.310 Supervisor Authority - Appeal to Council The supervisor shall have authority to decide any question which may arise and which is not fully covered in TMC 14.04, and his decision shall be final unless an appeal is made to the City Council. In such a case the decision of the Council shall be final. (Ord. 1766 §16.1art), 1996) 14.04.320 Payment by City for Fire Hydrant Supply The City shall pay to the Tukwila water department the sum of $15.00 per month for water furnished to each fire hydrant in the City. The charge herein fixed is a flat rate and shall be paid monthly. (Ord. 1766 §1(part), 1996) 14.04.330 Temporary Water Meters A. Temporary water meters are available on a rental basis from the Public Works Department for the following rental deposit: 1. 3/4 -inch and 1 -inch, $300.00; 2. 2 -1/2 inch, $1,000.00. TITLE 14 — WATER AND SEWERS B. Meters are to be used only for the designated project. C. Meters are to be returned promptly upon completion of the project or at the end of 60 days, whichever comes first. D. Meters are to be returned in the same condition as when rented. The user is responsible for meter damage and shall pay all costs related to repair. Lost or stolen meters are the responsibility of the renter and renter shall pay all costs associated with replacement of the meter; shall forfeit the rental deposit and pay for an estimated amount of water used. E. Meters may be moved from one hydrant to another within the same project providing: 1. Water Department is notified in advance of proposed relocation; 2. Hydrant wrenches are used in making all connections and disconnections. F. Rates for water used through temporary meters are as follows: 1. 3/4 -inch and 1 -inch, $75.00 plus water usage at the June through September Commercial/ Industrial rate for the year the water was used. 2. 2 -1/2 inch, $150.00 plus water usage at the June through September Commercial /Industrial rate for the year the water was used. (Ord. 1798 §2, 1997, Ord. 1766 §10oart), 1996) Printed January 14, 2003 Page 14 -7 TUKWILA MUNICIPAL CODE Chapter 14.06 BACKFLOW PREVENTION DEVICES Sections: 14.06.010 14.06.020 14.06.030 14.06.040 14.06.050 14.06.060 14.06.070 Definitions Cross - Connections Declared Unlawful Backflow Prevention Devices to be Installed Regulation of Private Water Supplies Adoption of State Regulations Abatement of Unlawful Cross - Connections and Installation', of Backflow Prevention Devices - Procedures Penalties 14.06.010 Definitions A. "Backflow" means a flow, other than the intended direction of flow, of any foreign liquids, gases or substances into the distribution system of a public water supply. B. Backflow prevention device" means a device approved by the State Department of Social and Health Services or such other State department as shall have jurisdiction over the subject matter, and by the American Water Works Association, used to counteract back pressure or prevent; back siphonage into the distribution system of a public water supply. C. "Cross- connection means any physical arrangement whereby a public water supply is connected, directly or indirectly, with any other water supply system, sewer, drain, conduit, pool, storage reservoir, plumbing fixture or other device which contains or may contain contaminated water, sewage or other wastes or liquids of unknown or unsafe quality, which may be capable of imparting contamination to a public water supply as a result of backflow. (Ord. 951 §1(part), 1975) 14.06.020 Cross - Connections Declared Unlawful The installation or maintenance of a cross - connection, which in the opinion of the Public Works Director or any staff member that he designates who is qualified in the protection of municipal water quality will endanger the water quality of the potable water supply of the City, is unlawful. (Ord. 951 §1(part). 1975) 14.06.030 Backflow Prevention Devices to be Installed Backflow prevention devices, when required to be installed in the opinion of the Public Works Director or his designated representative, shall be installed and maintained by the service customer on any service connection to the City's water supply system where said backflow prevention devices are necessary for the protection of the City's water supply. (Ord. 951 §](part), 1975) 14.06.040 Regulation of Private Water Supplies Use or operation of a private water supply system, contrary to the provisions of the ordinances of the City, or the laws of the State, or the rules and regulations of the State Board of Health regarding public water supplies where said private system is served by the City public water supply, is unlawful. (Ord. 951 §1(part). 1975) 14.06.050 Adoption of State Regulations Rules and regulations of the State Board of Health regarding public water supplies, entitled "Cross - Connection Control Regulation in Washington State" WAC 248 -54 -250 through WAC 24854 -500, and the American Water Works Association, Pacific Northwest Sections' Second Edition of "Accepted Procedure and Practice in Cross - Connection Manual" as they presently exist and as they may, from time to time, be amended in the future, are adopted by this reference as if set forth in full. (Ord. 951 §I (part), 1975) 14.06:060 Abatement of Unlawful Cross - Connections and Installation of Backflow Prevention Devices - Procedure Cross - connections declared in TMC 14.06 to be unlawful, whether presently existing or hereinafter installed and /or services requiring backflow prevention devices and /or unlawful use or operation of a private water supply system served by the City-public water supply system are public nuisances, and in addition to any other provisions of this code or the ordinances of the City where abatement of public nuisances shall be subject to abatement in accordance with the following procedure: 1. In the event that the Public Works Director determines that a nuisance as herein provided does exist, written notice shall be sent to the person in whose name the water service is established under the records of the City water department, or alternatively, a copy of such written notice shall be posted on the premises served. 2. The notice shall provide that the nuisance described herein shall be corrected within 30 days of the date said notice is mailed or posted on the premises. 3. In the event said nuisance is not abated within the prescribed time, water service to said premises shall be discontinued. 4. In the event that the nuisance, in the opinion of the Public Works Director or his designated representative, presents an immediate danger of contamination to the public water supply, service from the City water supply system to the premises may be 14-8 Printed January 14, 2003 • terminated without prior notice, provided, however, notice will be posted on the premises in the manner heretofore provided at the time said service is terminated. (Ord. 951 §1(part), 1975) 14.06.070 Penalties Any violation of any provision, or failure to comply with any of the requirements of TMC 14.06, shall be subject to the terms and conditions of TMC 8.45 ("Enforcement"). (Ord. 1838 §10, 1998. Ord. 951 §1(part), 1975) Printed January 14, 2003 TITLE 14 — WATER AND SEWERS Chapter 14.08 SEWAGE WASTE DISPOSAL SYSTEMS Sections: 14.08.010 County Ordinance Adopted 14.08.010 County Ordinance Adopted The regulations and provisions of Ordinance No. 931 of King County, Washington, three copies of which are on file in the office of the City Clerk, are adopted as an ordinance of the City. (Ord. 941 §1, 1975; Ord. 599 §1, 1969) Page 14 -9 Chapter 14.24 FIRE HYDRANTS Sections: 14.24.010 Applicability of Provisions 14.24.020 Type 14.24.030 Installation 14.14.040 Coverage 14.24.050 Accessibility 14.24.060 Exceptions , 14.24.010 Applicability of Provisions All fire hydrants installed within the corporate limits of the City of Tukwila shall meet or exceed the specifications and standards set out in TMC 14.24. (Ord. 1692 (part), 1994) 14.24.020 Type Hydrants shall conform to American Water Works Association Specifications C 502 -54; shall be compres- sion type and shall have a two -piece breaking flange with breaking thimble at the ground line or stem; shall have a self - oiling dry bonnet with factory- filled reser- voir holding approximately 8 ounces of oil. Oil reser- voir shall have not less than two "0" ring seals. Oil reservoir shall be so designed as to give a complete lubrication of stems each time the hydrant is operated. The upper stem shall have a brass sleeve. 1. Hydrants shall Le equipped with two 2- 1/2" N.S.T. hose ports and one 5" Stortz pumper dis- charge port, and shall have a 1 -1/4" Pentagon open -lift operating nut. 2. Hydrants shall have a 6" M.J. bottom .con- nection and a 5 -1/4" main valve opening, and shall have 18" above -grade level to the center of the pumper discharge port. 3. Hydrant color is to be "Rustoleum" #659 Yellow Gloss or Farwest #X -3472 Case Yellow. The bonnets and ports of City hydrants shall be painted: Red for up to 500 gpm Rustoleum #1210, Farwest #X -6270, or equivalent Orange for 500 to 1,000 gpm Rustoleum #559, Farwest #261, or equivalent Green Rustoleum #935, for more than 1,000 gpm Farwest #255, or eouivalent 4. Private hydrants shall be all yellow. 5. Any exception to stated paint standards must be authorized by the Director of Public Works. 6. Hydrants are to be compression -type, equal to Mueller #A -423 or Mueller #A -419. (Ord. 1692 §1, 1994) TITLE 14 — WATER AND SEWERS 14.24.030 Installation A. Hydrants shall not be closer than 4 feet to any • fixed object (e.g., fences, parking, building, etc.), with the exception of hydrant guard posts. Guard posts shall be installed around hydrants not protected by curbs, so as to help prevent motor vehicles from contacting the hydrant. The guard posts shall be either steel pipe (minimum 4" diameter) filled with concrete, or con- crete (minimum 8" diameter) . Posts shall be 3 feet from the center of the hydrant, and shall not be in direct line with any discharge ports. Posts shall be 6 feet long; 3 to 3 -1/2 feet shall be buried. Painted finish shall be the same color as for the applicable hydrants. B. All hydrants shall be installed with an auxiliary gate valve between the hydrant main valve and the water main. The gate valve shall be UL approved and have a 2" square operating nut. The valve shall be installed at the hydrant - lateral tee. If the hydrant is greater than 10 feet from the main, an additional valve may be required, but not closer than 3 feet from the hydrant. The protector cover for the valve shall be left in plain view, flush with grade after landscaping or paving. C. Hydrants, auxiliary gate valves, and supply lines shall be installed to meet sound . engineering standards per NFPA #24, paragraphs 4202, 4301, 4302, 4303, 4304, and 4305. (Ord 1692 §2, 1994) 14.24.040 Coverage A. Except as otherwise provided herein for single - family short plat and individual single -family homes, all commercial, single - family subdivision and multi- family development, including approved conditional uses, shall have hydrants spaced so that a hydrant is no more than 150 feet by line of vehicular travel from a building and that no point around the perimeter of any building is more than 300 feet from a hydrant. Hydrants on water mains within the City shall be spaced no more than 300 feet apart. B. For short plat development (four single - family homes or less) and individual single - family homes that do not otherwise meet the 150 -foot requirement of TMC 14.24.040A, hydrants shall be placed so that a hydrant is no more than 250 feet by line of vehicular travel to the nearest point of the building, provided that: 1. The property owner shall sign an agree- ment, on a form prepared by the Director of Public Works, which form shall include an agreement not to protest the formation of any LID or ULID, to participate in future water system improvements to correct defi- ciencies that have been identified in the applicable water comprehensive plan and /or an engineering analysis of the development. Examples of deficiencies include, but are not limited to, failure to meet Tukwila pipe size standards, minimum flow rate (gpm) and residual pressure (psi) from DOH, fire code or insurance underwriters (whichever is more stringent), Printed January 14, 2003 Page 14 -21 • • • TUKWILA MUNICIPAL CODE and flow velocity as determined by the applicable comprehensive plan (Water District No. 75, Water District No. 125, Renton, etc.) and engineering analysis; and 2. The hydrant flows a minimum of 1,000 gallons per minute with 20 psi residual pressure. C. When geographical or construction features prevent the placing of water mains and /or hydrants, the Fire Prevention Bureau may authorize in writing the use of approved "wall hydrants" or similar devices. (Ord. 1692 53, 1994) 14.24.050 Accessibility A. Hydrants and guard posts shall be-in plain view for a distance of 50 feet in the line of vehicular approach, free from shrubs, trees, fences, landscaping and similar obstruction. B. The 5" Stutz pumper discliarge port shall face the street or, in the case of private hydrants, the direction shall be determined by the Fire Department. C. Hydrant supply lines shall be of_ such size and design as to provide the fire flow required by Appendix III -A of the Uniform Fire Code, Fire Flow Require- ments for Buildings, and the City's comprehensive water design standards. D. Tapping into City water mains shall be by the process known as "wet tapping" so as to allow uninterrupted service on those mains. (Ord. 1692 54, 1994) 111/ 14.24.060 Exceptions Any exceptions to items covered in TMC 14.24 shall be made in writing by the Chief of the Fire Department and the officer in charge of the Fire Pre- vention Bureau of the Tukwila Fire Department, and must conform to the City's Public Works' standards and /or the City's comprehensive water plan. Any written exception shall set forth the basis for the excep- tion and its relationship to public health, safety or avoidance of undue hardship: (Ord. 1692 55, 1994) • 14 -22 Printed January 14, 2003 TITLE 14 — WATER AND SEWERS removing the lien on the parcel. Pursuant to RCW 35.67.215, the lien is effective for up to one year's delinquent service charges without the necessity of any writing or recording of the lien with the King County Records and Elections Division. In the case of foreclosure actions to collect delinquencies, the City shall seek also to collect reimbursement of reasonable costs of collection including, but not limited to, attorney's fees, staff time and filing fees. (Ord. 1932 §1(part), 2000) 14.32.070 Service Charge Revenues All moneys obtained pursuant to TMC 14.32 shall be credited and deposited in the storm and surface water management utility fund created by TMC 14.28. Moneys so obtained shall be spent for the purposes allowed in that chapter. (Ord. 1932 §1(part), 2000) Chapter 14.36 UTILITY CONCURRENCY STANDARDS Sections: 14.36.010 14.36.020 14.36.030 14.36.040 Water Supply -, Concurrency Determination Sewer System - Concurrency Determination Mitigation Appeals 14.36.010 Water Supply - Concurrency Determination A. All applicants for Type 1, 2, 3, 4 and 5 decisions involving projects which will require domestic water supply and or water for fire flow purposes shall obtain a certificate of water availability from the water purveyor serving the area in which the proposal is located, if the site is served by a purveyor other than the City of Tukwila. The certificate shall confirm that the water purveyor has the necessary water rights and the water system capacity, including such water mains, pump stations and other facilities as may be necessary, to provide domestic water service and fire flow meeting City standards or that such capacity will be available by the time a certificate of occupancy is issued or fire flow is required by the City Fire Marshal to protect combustible construction, whichever is earlier. B. Applications for Type 1, 2, 3, 4 and 5 decisions involving projects which will require domestic water supply from the City of Tukwila shall be referred by the Department of Community Development to the Department of Public Works, which shall determine whether the City has the necessary water rights and the water system capacity, including such water mains, pump stations and other facilities as may be necessary, to provide domestic water service and fire flow meeting City standards or that such capacity will . be available by the time a certificate of occupancy is issued or fire flow is required by the City Fire Marshal to protect combustible construction, whichever is earlier. If adequate service is not available, the Department. of Public Works shall determine and shall advise the applicant of the improvements which are necessary to provide service meeting City standards. (Ord. 1769 §2(part), 1996) 14.36.020 Sewer System - Concurrency Determination All applicants for Type 1, 2, 3, 4 and 5 decisions involving projects which will require domestic sanitary sewer service shall comply with one of the following: 1. Submit proof that the applicant has received approval for an on -site sewage system design from the Seattle -King County Department of Environmental Printed January 14, 2003 Page 14 -39 • • • TUKWILA MUNICIPAL CODE Health in accordance with the rules and regulations of the King County Board of Health. 2. Obtain a certificate of sewer availability from the sewer purveyor serving the area in which the proposal is located, if the site is served by a purveyor other than the City of Tukwila. The certificate shall confirm that the sewer purveyor has the necessary sewer system capacity, including such sewer mains, pump stations and other facilities as may be necessary, to provide sewer service meeting City standards or that such capacity will be available by the time a certificate of occupancy is issued. 3.. Applications for Type 1, 2, 3, 4 and 5 decisions involving projects which will require sanitary sewer service from the City of Tukwila shall be referred by the Department of Community Development to the Department of Public Works, which shall determine whether the City has the necessary sewer system capacity, including such mains, pump stations and other facilities as may be necessary, to provide sanitary sewer service meeting City standards or that such capacity will be available by the time a certificate of occupancy is issued. If adequate service is not available, the Department of Public Works shall determine and shall advise the applicant of the improvements which are necessary to provide service meeting City standards. (Ord. 1769 §2(part). 1996) 14.36.030 Mitigation A. If water or sewer service to a project requiring such service from the City of Tukwila cannot meet City standards with existing facilities, the applicant shall be required to either: 1. complete the improvements required to provide such level of service; or 2. if the City anticipates that the improve- ments necessary to meet the City's water and sewer standards will be constructed within six years by a . public capital facilities project, the applicant may pay a mitigation payment equal to the applicant's fair share of the cost of the improvements necessary to meet the City's water and sewer standards ; or 3. In appropriate cases, mitigation may consist of a combination of improvements constructed by the - applicant and mitigation payments. B. In the event that the applicant agrees to complete improvements pursuant to TMC 14.36.030A.1, the applicant shall be entitled to apply to enter into a Latecomer Agreement with the City. (Ord. 1769 §2(part), 1996) 14.36.040 Appeals Any party. seeking to appeal a mitigation require- ment imposed by a City administrator under TMC 14.36 may file an appeal of a Type 1 decision as provided in TMC 18.104.010(B) and TMC 18.108.010(8). (Ord. 1847 §6, 1998) 14-40 Printed January 14; 2003 • APPENDIX K CASCADE WATER ALLIANCE INTERLOCAL CONTRACT • • • • • Cascade Water Alliance INTERLOCAL CONTRACT Amended and Restated November 13, 2002 TABLE OF CONTENTS ARTICLE 1. Agreement 1 ARTICLE 2. Definitions 1 ARTICLE 3. Formation of Entity; Purpose and Powers 4 Section 3.1 Formation 4 Section 3.2 Membership 5 Section 3.3 Conversion to Municipal Corporation Status 6 Section 3.4 Purposes 6 Section 3.5 Powers 7 ARTICLE 4. Organization Structure; Board 8 Section 4.1 Section 4.2 Section 4.3 Section 4.4 Section 4.5 Section 4.6 Section 4.7 Composition, Bylaws, and Meetings. 8 Powers of the Board 9 Voting 9 Officers and Committees 9 Executive Committee 10 Staff, Consultants and Contractors 10 Budget; Dues; Financial Management 11 ARTICLE 5. Asset Development and Supply Commitment 11 Section 5.1 Property Acquisition, Ownership, and Disposition 12 Section 5.2 Supply Commitment. 12 Section 5.2.1 Commitment to Members 12 Section 5.2.2 Additional Rules for Members Retaining Independent Supply 14 Financing of Assets 15 Supply Expansions and System Extensions 16 Regional Capital Facilities Charges 17 Transfer Upon Mergers, Consolidations and Assumptions 19 Section 5.3 Section 5.4 Section 5.5 Section 5.6 ARTICLE 6. ARTICLE 7. New Independent Supply 19 Asset Management 20 Section 7.1 Supply System Management 20 Section 7.2 Conservation 21 Section 7.3 Shortages -- Emergency 21 Section 7.3.1 Shortages 21 Section 7.3.2. Emergency 22 Water Quality 22 Water Supply Rates and Charges 23 New Water Surcharge 25 Franchises and Easements 25 Sales of Water to Non - Members 26 Section 7.4 Section 7.5 Section 7.6 Section 7.7 Section 7.8 Cascade Water Alliance -i- Interlocal Contract Amended and Restated November 13, 2002 ARTICLE 8. Planning 26 Section 8.1 Water Supply Plan 26 Section 8.2 System Reliability Methodology 27 ARTICLE 9. ARTICLE 10. Section Section Section Section ARTICLE 11. ARTICLE 12. ARTICLE 13. ARTICLE 14. ARTICLE 15. ARTICLE 16. Filings 27 Duration and Dissolution; Withdrawal 27 10.1 Duration 27 10.2 Withdrawals 27 10.3 Dissolution 29 10.4 Successor Entity 29 Amendments 30 Applicable Law and Venue. 30 No ,Third Party Beneficiaries. 30 Severability 30 Entire Agreement 31 Execution. 31 Cascade Water Alliance Interlocal Contract -ii- Amended and Restated November 13, 2002 CASCADE WATER ALLIANCE INTERLOCAL CONTRACT Recitals WHEREAS, the Cascade Water Alliance, an intergovernmental organization created by Interlocal Contract effective April 1, 1999 to further the interests of its members with respect to water supply and to work cooperatively with other water supply entities in the region; and WHEREAS, Members of the Cascade Water Alliance have determined to amend the Cascade Water Alliance's Interlocal Contract to better facilitate the purposes of the Cascade Water Alliance; NOW, THEREFORE, it is agreed as follows: ARTICLE 1. Agreement The Cascade Interlocal Contract, effective April 1, 1999, and entered into under authority of the Interlocal Cooperation Act, Chapter 39.34 RCW is amended and re- stated as provided herein. ARTICLE 2. Defmitions "Board" means the Board of Directors of Cascade. "Bylaws" means the Bylaws of Cascade, as adopted and amended by the Board. "Cascade" means the Cascade Water Alliance. "Cascade ERUs" ( "CERUs ") means equivalent residential units, calculated according to the Regional Capital Facilities Charge Methodology. "Cascade Supply Date" means the date for the Founding Members and each new Member, established by Resolution of the Board, upon which Cascade undertakes a Supply Commitment. Interlocal Contract Cascade Water Alliance - 1- Amended and Restated November 13, 2002 "Contract" means this Cascade Water Alliance Interlocal Contract. "Demand Share" means either a Member's current share of water provided through the Supply System, or estimated share of water to be provided through the Supply System, whether Full Supply or.Interruptible Supply, expressed in millions of gallons per day, calculated according to the Rate Calculation Methodology. "Dual Majority Vote" means Board approval of a proposal on the basis of a simple majority of all Members, allowing one vote per Member, together with a simple majority of all Members on the basis of each Member's Weighted Vote. A "simple majority" means a majority of all Members of Cascade, not just the Members present and voting. "65% Dual Majority Vote" means Board approval of a proposal on the basis of a 65% supermajority of all Members, allowing one vote per Member, together with 65% supermajority of all Members on the basis of each Member's Weighted Vote. A " supermajority" means 65% of all Members of Cascade, not just the Members present and voting. "Founding Member" means the City of Bellevue, Covington Water District, the City of Issaquah, the City of Kirkland, the City of Mercer Island, the City of Redmond, Sammamish Plateau Water and Sewer District, Skyway Water and Sewer District, and the City of Tukwila. "Independent Supply" or "Independent Supplies" means a Member's Water Supply Assets that are not part of the Supply System. "Member" or "Members" means one or more member agencies of Cascade. "Non- Member" means a water purveyor, either private or municipal. "Operations and Maintenance Costs" or "O &M Costs" means all expenses incurred by Cascade to operate and maintain the Supply System in good repair, working order and condition, including, without limitation, payments made to any other public or private entity for Cascade Water Alliance Interlocal Contract -2- Amended and Restated November 13, 2002 • water or other utility service. Except as approved by the Board, Operations and Maintenance Costs shall not include any depreciation, capital additions or capital replacements to the Supply System. "Rate Calculation Methodology" means the method of setting rates and charges adopted by the Board in accordance with Section 7.5. "Regional Capital Facilities Charges" ( "RCFCs ") means the charges to each Member for new CERUs connected to that Member's water distribution system. "Regional Capital Facilities Charge Methodology" ( "RCFC Methodology ") means the method of determining the RCFCs adopted by the Board in accordance with Section 5.5. "Satellite Systems" means water supply facilities identified as such by the Board, including but not limited to facilities that serve a portion of a Member's customers but that are not part of the Member's main water system. "Seattle Contract Purveyor" or "Seattle Contract Purveyors" means a Member that is or was a party to The City of Seattle Water Purveyor Contracts, Version A or Version B, dated November 1981 (as amended) executed prior to July 1, 1998. "Supply Commitment" means the obligation undertaken by Cascade to supply water to a Member or Non - Member. With respect to Members, that obligation shall be characterized as "Full Supply Commitment," or an "Interruptible Supply Commitment" defined as follows: "Full Supply Commitment " for any or all of a Member's water needs means that those needs, as projected in the Member's lawfully adopted water supply plan, shall be met from the Supply System, net of independent supply and subject to the other limitations established in this agreement, on an equal parity with all other Full Supply Commitments, and with a guaranteed priority no lower than for any other Supply Commitment made by Cascade; provided that no Cascade Water Alliance Interlocal Contract -3- Amended and Restated November 13, 2002 Member is guaranteed any given amount of supply or capacity. "Interruptible Supply Commitment" means a supply of all or part of a Member's water needs from the Supply System on an as- available basis on a lower priority than any Full Supply Commitment. The Supply Commitment for a Member shall be defined by this Interlocal Contact, the terms and conditions of Membership, and the Supply Commitment Resolution The Supply'Commitment for a Non - Member shall be defined by the terms and conditions of a specific contract between Cascade and the Non - Member. "Supply System" means the Water Supply Assets owned or controlled by Cascade. "Water Supply Plan" means the Cascade Regional Water Supply Plan adopted by the Board as provided in Section 8.1. "Water Supply Assets" means tangible and intangible assets usable in connection with the provision of water supply, including, without limitation, physical facilities (e.g., dams, wells, treatment plants, pump stations, reservoirs, and transmission lines), water rights, capacity and/or contractual rights in facilities or resources owned by other entities, and investments in conservation programs and facilities. "Weighted Vote" means a vote in which each Members vote is counted according to the Members Demand Share, but no Member shall have a Weighted Vote of less than one. ARTICLE 3. Formation of Entity; Purpose and Powers Section 3.1, Formation. The Cascade Water Alliance was created on April 1, 1999 as a public body and an instrumentality of its Members, which exercises essential governmental functions on its Members' behalf as authorized by the Interlocal Cooperation Act (RCW 39.31). Cascade is incorporated under RCW 39.34.040(3) as a public nonprofit corporation in the Interlocal Contract Cascade Water Alliance -4- Amended and Restated November 13, 2002 • • • • manner set forth in RCW 24.03 or 24.06 and it may, with Board approval, be incorporated as a partnership in the manner set forth in RCW 25.04, or the Board may organize the form of Cascade in any other manner permitted by law. The Board may approve the filing of Articles of Incorporation or similar documents in connection with incorporating Cascade or organizing it in some other manner. Section 3.2 Membership. Subject to restrictions on future Cascade water rights, or to limitations upon water's place of use imposed by contract or permit, any municipal water utility serving within the Central Puget Sound Region may be admitted to Cascade. The decision to admit new Members rests with the sole discretion of the Board, which shall determine whether to extend a membership offer taking into consideration the audit findings, Cascade water resources, and any other factors the Board deems advisable. When a municipality applies for Membership, Cascade shall conduct a water supply audit according to the methodology and within the period determined by the Board. Audit results shall be provided to the Board and to the applicant. If a Membership offer is extended, it shall address the nature of the Water Supply Assets being transferred or retained and the `value" of those assets in terms of the calculation of an applicant's Demand Share, RCFCs and other matters relating to the rights and obligations of the applicant and Cascade, which must be recorded in the form that the Board determines and which will constitute, along with this Contract, the conditions under which an applicant becomes a Member of Cascade. An applicant for Membership shall be admitted by adoption of a.Resolution of the Board accepting the application for Membership and incorporating the terms and conditions of Membership. Cascade Water Alliance Interlocal Contract -5- Amended and Restated November 13, 2002 • • Each Membership application must be accompanied by a nonrefundable application fee based on the cost of the audit and other costs related to the admission of a new Member or a request for new supply. The Board shall set the application fee for each applicant based on the estimated cost of processing the application, including the cost of the audit. As a condition of Membership, each new Member admitted to Cascade shall, in addition to any other applicable fees, rates, charges or assessments, pay to Cascade the membership fee, as established by the Board. If an applicant's planning process or plans are materially out of compliance with the requirements of the Growth Management Act, the Board may condition an offer of Membership upon the applicant's compliance with that act. Section 3.3 Conversion to Municipal Corporation Status. In accordance with Section 10.4, Cascade may be converted into a separate municipal corporation if, and as permitted by law. Upon the creation of such a separate municipal corporation, all Cascade rights and obligations and all Member rights and obligations under this Contract shall transfer to that new municipal corporation. Section 3.4 Purposes. Cascade's purposes include only those related to water resources, and do not include the provision of other general services to the public, and are to: a. provide a safe, reliable and high quality drinking water supply to meet the current and projected demands of Cascade Members serving the Central Puget Sound Region, and for Non - Members as determined by Cascade, and to carry out this task in a coordinated, cost - effective, and environmentally sensitive manner; b. develop, contract for, manage, acquire, own, maintain and operate Water Supply Assets including, without limitation, surface water supplies, groundwater supplies, reclaimed water supplies, and other water supply resources as determined by the Board; c. contract with Seattle to transfer to Cascade and to modify Seattle's rights and duties with respect to Seattle Contract Purveyors; Cascade Water Alliance Interlocal Contract -6- Amended and Restated November 13, 2002 • • • d. contract for, or assume certain contractual rights and duties related to the Tacoma Second Supply Pipeline project; e. purchase and provide water supply, transmission services, treatment facilities and other related services; f. provide conservation programs to promote the wise and efficient use of resources; g. carry out emergency water supply and shortage management programs for its Members when demands exceed available supply; h. coordinate and plan cooperatively with other regional or local water utilities and other entities to maximize supply availability and to minimize system costs; develop a Water Supply Plan addressing the needs of its Members and help develop a regional water supply plan with other water providers as Cascade may find convenient or necessary to meet regional, State and federal planning requirements, and to take a leadership role in developing and coordinating those supply plans; J. share costs and risks among Members commensurate with benefits received; and k. carry out, or to further other water supply purposes that the Members determine, consistent with the provisions of this Contract. Section 3.5 Powers. To further its purposes, Cascade has the full power and authority to exercise all powers authorized or permitted under RCW 39.34 and any other laws that are now, or in the future maybe, applicable or available to Cascade and to engage in all activities incidental or conducive to the attainment of the purposes set forth in Section 3.4 of this Contract, including but not limited to the authority to: a. acquire, construct, receive, own, manage, lease and sell real property, personal property, intangible property and other Water Supply Assets; b. operate and maintain facilities; c. enter into contracts; d. hire and fire personnel; e. sue and be sued, Cascade Water Alliance Interlocal Contract -7- Amended and Restated November 13, 2002 f. exercise the power of eminent domain (through its Members at their individual discretion, unless and until Cascade has that power under applicable law); g. impose, alter, regulate, control, and collect rates, charges, and assessments, h. purchase and sell water and services within and outside the geographical boundaries of its Members; i. borrow money (through its Members or other entities at their individual discretion, unless and until Cascade has that power under applicable law) or enter into other financing arrangements; j. lend money or provide services or facilities to any Member, other governmental water utilities, or governmental service providers; k. invest its funds; 1. estalilish policies, guidelines, or regulations to carry out its powers and responsibilities; m. purchase insurance, including participation in pooled insurance and self-insurance programs, and indemnify its Members, officers and employees in accordance with law; n. exercise all other powers within the authority of, and that may be exercised individually by all of its Members with respect to water supply, conservation, reuse, treatment and transmission, or any of the other purposes set forth in Section 3.4; and o. exercise all other corporate powers that Cascade may exercise under the law relating to its formation and that are not inconsistent with this Interlocal Contract or with Chapter 39.34 RCW or other applicable law. ARTICLE 4. Organization Structure; Board Section 4.1 Composition, Bylaws and Meetings. Cascade is governed by a Board of Directors consisting of one individual representative appointed by Resolution of the Member's legislative authority: Members may similarly appoint Alternate Board Members. Each Board Member and each Alternate Board Member must be an elected official of the Member. Cascade Water Alliance Interlocal Contract -8- Amended and Restated November 13, 2002 • • The Board shall adopt Bylaws consistent with this Interlocal Contract that specify, among other matters, the month of Cascade's Annual Meeting, Board powers and duties and those of the Executive Committee, Standing Committees, Officers and employees. The Board shall meet as required by the Bylaws, but no less than quarterly. Section 4.2 Powers of the Board. The Board has the power to take all actions on Cascade's behalf in accordance with voting provisions set forth in Section 4.3. The Board may delegate to the Executive Committee or to specific Cascade Officers or employees any action that does not require Board approval under this Contract. Section 4.3 Voting. All Board actions must be approved by Dual Majority Vote of all Members, except where this Contract requires either a 65% Dual Majority Vote, as provided in Sections 5.2, 5.5, 7.1, 7.3, 8.2, 10.3, 10.4, and Article 11; or ratification by the Members' legislative authority, as provided in Section 10.4 and Article 11. The Board may act by voice votes, as set forth in the Bylaws. Any Member may require a recorded tabulation of votes either before or immediately after a voice vote is taken. Although voting is, in part, based on Weighted Vote, the Members expressly agree that there is only one class of voting membership, and voting occurs within that single class. Any Member that has been declared to be in default of its obligations under this Interlocal Contract by the Board shall lose its right to vote until the Board has declared the default to be cured. Section 4.4 Officers and Committees. Cascade Officers shall include a Chair, a Vice Chair, a Secretary and a Treasurer. The Chair serves as the chair of the Board (and may be known as the "President ", if the Bylaws so designate) and performs those duties set forth in the Bylaws. Cascade Water Alliance Interlocal Contract -9- Amended and Restated November 13, 2002 • • The Vice Chair shall perform the duties of the Chair in the Chair's absence and shall perform other duties as set forth in the Bylaws. The Secretary shall be responsible for Cascade records and performs other duties as set forth in the Bylaws. The Treasurer shall be responsible for Cascade accounts and financial records and performs other duties as set forth in the Bylaws. Consistent with the provisions of this Contract, the Board may, in the Bylaws, establish additional Officers and set forth their duties. The Board may create and appoint members to Standing Committees and special committees as it deems appropriate. Committee members need not be elected officials or employees of Members, but Standing Committee Chairs must be Board Members or Alternate Board Members. Section 4.5 Executive Committee. The Chair, Vice Chair, Secretary, Treasurer and chairpersons of Standing Committees together constitute Cascade's Executive Committee. The Chair (or acting Chair) shall vote on matters before the Executive Committee only if necessary to break a tie. The Executive Committee's duties and responsibilities are set forth in the Bylaws. The Executive Committee shall not have the power to: a. approve any contract for a term longer than three years; b. approve any contract involving expenditure by, or revenue to Cascade in excess of such amounts and under such circumstances as set forth in the Bylaws; c. retain or dismiss the chief executive officer or determine the chief executive officer's compensation; or d. take :any actions expressly reserved to the Board by this Contract or the Bylaws. Section 4.6 Staff, Consultants and Contractors. Cascade staff shall consist of a chief executive officer and other positions established by the Board. The Board shall appoint, designate the title of, and establish the compensation range of the chief executive officer. The Cascade Water Alliance Interlocal Contract -10- Amended and Restated November 13, 2002 • Board shall hire or retain legal counsel and independent accountants and auditors for Cascade. The authority to hire other consultants may be delegated to the Executive Committee. The chief executive officer appoints persons to fill other staff positions, and those appointments may be subject to ratification by the Board or the Executive Committee if the Bylaws so provide. The Board may also provide that administrative, professional or technical services be performed by contract. Section 4.7 Budget; Dues; Financial Management. The Board must approve an annual budget determining Cascade's revenues and expenditures no later that sixty (60) days before the beginning of the fiscal year in which that budget will be in effect. The budget will be developed and approved according to a schedule established by the Bylaws. The budget must identify the levels of rates and charges on which revenue projections are based. The Board may amend the budget. Each Member must pay annual dues to defray part of Cascade's administrative costs based on the number of CERUs served by its water system, regardless of water usage or capacity, and regardless of whether those units are served by the Supply System or by Independent Supply. Total dues collected from all Members may not exceed the greater of $1,000,000.00 or 5% of Cascade's annual revenue requirement, less debt service. The Board may establish minimum annual dues per Member and may provide that less than all of a Member's CERUs be taken into account in establishing dues. All Cascade books and records shall be open to inspection by the Washington State Auditor. ARTICLE 5. Asset Development and Supply Commitment Cascade Water Alliance Interlocal Contract -11- Amended and Restated November 13, 2002 • • Section 5.1 Property Acquisition, Ownership and Disposition. Cascade may construct, purchase, rent, lease, manage, contract for, or otherwise acquire and dispose of Water Supply Assets and other assets. Cascade may control and manage both the assets it owns and the assets that are owned by Members that have transferred control and management of those assets to Cascade. This Contract does not vest in Cascade any authority with respect to Members' other facilities or assets, such as Water Supply Assets retained by Members as Independent Supply. Subject to Cascade's agreement, a Member may transfer to Cascade its title to, or operational control and management of water supply and regional transmission assets. Water Supply Assets may also be fully retained by Members as Independent Supply, subject to the provisions of Article 6. At the discretion of the Board, Cascade may accept title to, or operational control and management of Water Supply Assets offered by Members or accept supply assets that constitute all or part of a Member's Satellite System(s). The Board may accept supply assets subject to the terms and conditions arranged between Cascade and the Member, based on the result of the audit process and mutual needs. Members shall not be deemed to hold legal ownership rights in any Water Supply Assets owned by Cascade, whether those Water Supply Assets have been developed by, purchased by, or transferred to Cascade, and regardless of the accounting treatment of RCFC payments and other payments made to Cascade. Section 5.2 Supply Commitment Section 5.2.1 Commitment to Members. Beginning on the Cascade Supply Date, Cascade shall provide a Full Supply Commitment to each Founding Member. Thereafter, Cascade shall provide a Full Supply Commitment to meet all current and future water supply needs of a Member that joins with Water Supply Assets sufficient to provide for its needs during Cascade Water Alliance Interlocal Contract -12- Amended and Restated November 13, 2002 • the following fifteen (15) years (whether or not those Water Supply Assets are transferred to Cascade or retained as Independent Supply) commencing on the Member's Cascade Supply Date. When a supply contract is negotiated with Seattle, any Member that is a Seattle Contract Purveyor shall relinquish its rights under its Seattle Water Purveyor Contract to Cascade and execute such documents as may be necessary to transfer those rights to Cascade. Cascade shall accept those rights and a corresponding obligation to provide a Full Supply Commitment (net of Independent Supply). The approval of a contract with the City of Seattle providing for the initial acquisition of rights to substantial Water Supply Assets, and any material amendment to that contract, shall be effective upon a 65% Dual Majority Vote. Any Full Supply Commitment shall be subject to water shortages, to Cascade's ability to implement the Water Supply Plan, and to the portion of the Member's needs that can be served by the audited capacity of its Independent Supply. If the needed supply is not available, the shortage shall be shared by all the Members in accordance with Cascade's shortage management plan, except as otherwise provided in Section 5.5. Cascade is not obligated to provide water supply to service area expansions in or outside the urban growth boundary, unless Cascade agrees to such expanded service area. However, Cascade shall be obligated to provide water supply to the entire service area of each Member (as that service area is defined in terms under which the Member was admitted), whether or not some of that service area is within the Member's current jurisdictional boundaries and/or within the current urban growth boundary. Cascade is not obligated to provide increased water supply to any Member if it is determined that the Member's planning process or plans are materially out of compliance with the requirements of the Growth Management Act. Cascade Water Alliance Interlocal Contract -13- Amended and Restated November 13, 2002 A Member that joins with Water Supply Assets insufficient to provide for its needs for fifteen (15) years receives the Full Supply it desires only if, when, and to the extent it is available within reliability standards determined by Cascade's system reliability methodology. If sufficient Full Supply is not available within reliability standards determined by Cascade's system reliability methodology, the Member receives partial Full or Interruptible Supply, and Full Supply must be provided within fifteen (15) years. Cascade shall then undertake to include in Cascade's water supply plan, and to acquire the facilities or other assets necessary in the Board's determination to provide for that deficit. If Cascade fails to develop sufficient assets to timely provide the increased Full Supply, the commitment becomes a Full Supply Commitment at the end of that fifteen- (15) year period, and any shortage shall be shared by all Members in accordance with Cascade's shortage management plan. If multiple Members request new Full Supply, requests must be honored in the order received (i.e., in the order in which application is made accompanied by the application fee). With respect to new Members, requests for Full Supply `vest" no earlier than the date that membership is effective. In cases of conflict or ambiguity, the Board may determine the order of requests. Section 5.2.2 Additional Rules for Members Retaining Independent Supply. Whenever Cascade has a Supply Commitment to a Member that retains Independent Supply, Cascade shall provide Full Supply for all of that Member's water supply needs minus the amount of water that an audit determines may be provided by that Member's Independent Supply. Members are not required to share shortages resulting from the loss of all or part of Independent Supply, although Cascade may make Interruptible Supply available to a Member that loses Independent Supply at prices that are consistent with the price of Interruptible Supply being made Cascade Water Alliance Interlocal Contract -14- Amended and Restated November 13, 2002 • • • available to others at that time. Cascade may at any time and at its cost and expense carry out audits of a Member's Independent Supply. A Member requesting an additional Full Supply Commitment due to loss of Independent Supply shall make that request by Resolution of the requesting Member's legislative authority. When and as determined by the Board, the Member shall pay an amount equal to the RCFCs allocable to the number of CERUs that can be served by the replacement supply provided or to be provided by Cascade. Cascade shall then include the supply in its Water Supply Plan, and provide the supply when it becomes available, but in any event within fifteen (15) years. If within fifteen (15) years the supply is not available, Cascade's commitment becomes a Full Supply Commitment and any shortage with respect to that supply must be shared by all the Members in accordance with the Shortage Management Plan, except as otherwise provided in Section 5.5. Section 5.3 Financing of Assets. The acquisition of new capital facilities and other Water Supply Assets must be provided by RCFCs, transfers of Water Supply Assets, use of rate revenues, the issuance of bonds to be repaid by rate revenues and RCFCs, and other funding sources determined by the Board. Until Cascade is authorized by law directly to finance the acquisition of facilities and other Water Supply Assets by municipal debt financing (bonds), or a successor entity replaces Cascade under Section 10.4, such financing must be carried out on Cascade's behalf by one or more Members on a voluntary basis or by other entities. Members serving as issuers may conduct the financing through "separate systems" permitted by their applicable bond resolutions, or in some other appropriate manner, and Cascade may compensate those Members for their reasonable costs associated with the financing. Documents of other issuers related to the borrowings must expressly allow transfer of liability on the obligations to Cascade or to a Cascade Water Alliance Interlocal Contract -15- Amended and Restated November 13, 2002 successor entity, including, without limitation, a joint operating agency or similar entity that may be permitted by law. All rights and obligations related to those obligations must survive the transfer. Because obligations issued by Cascade or on its behalf will be payable from Cascade's water supply rate revenue and from RCFCs, any Member's failure to pay rates or charges on time may result in curtailment of water supply and legal action for recovery of charges due. The Members recognize that their promises to pay rates and charges will be relied on by holders of those obligations. To the extent permitted by law, the Board may provide that a Member's failure to timely pay rates and charges may result in a "step -up" requirement under which the other Members may be required to provide for timely payment of the obligations proportionately, based on Demand Shares, Weighted Vote, CERUs or other factors the Board deems equitable. In that case, as the Board may determine and subject to the provisions of documents related to a borrowing, Cascade and its Members may seek recovery against the Member that defaults on its duty to timely pay those rates and charges. As the Board determines, and subject to the provisions of documents related to a borrowing, repayment amounts may be passed through to Members that contributed, either in cash or in credits against future rates, dues or RCFCs. Section 5.4 Supply Expansions and System Extensions. Cascade must provide for Supply System expansions and extensions to meet the needs of additional water customers of Members, subject to consistency with applicable growth management plans and comprehensive plans, Cascade's water supply plan, orderly asset development, reasonable cost and financing capacity. The Board shall establish a water supply development process, including criteria governing the evaluation of new projects, and that process must promote equality of costs and services (other than direct local services), regardless of geographic location. The results of the Cascade Water Alliance Interlocal Contract -16- Amended and Restated November 13, 2002 • • water supply planning process must be reflected in Cascade's Water Supply Plan. The Board shall have the authority to undertake new projects identified in Cascade's Water Supply Plan for the expansion of Water Supply Assets and regional transmission system extensions to meet Members' projected needs. To reduce costs, Cascade may, to the extent that the Board deems advisable, enter into agreements with Members to wheel water through their existing systems. When facilities are constructed that are used partially by Cascade for wheeling water and partially by Members or other entities for their purposes, the Board may determine an appropriate Cascade contribution to the cost of those facilities. Existing arrangements among Members (and between Members and Non - Members) in place when a Member joins Cascade remain unaffected except as otherwise agreed between Cascade and the other entities concerned. Section 5.5 Regional Capital Facilities Charges. To allocate growth costs to those Members that require capacity increases, each Member shall pay to Cascade an RCFC for each new CERU connected to its water distribution. system. Growth in water usage by existing CERUs is not subject to RCFCs unless that growth constitutes a CERU increase as provided in the RCFC Methodology. Members with a supply deficit must pay an RCFC commensurate with that deficit. To the extent that a Member transfers to Cascade or retains as Independent Supply water supply in excess of its needs, it receives a corresponding credit against future RCFCs. Subject to the provisions of Section 5.2.2, a Founding Member pays no RCFCs with respect to the number of CERUs served as of January 31, 2003, or other such later date as determined by Resolution of the Board. A new Member with adequate supply shall commence paying RCFCs fifteen (15) years prior to the date that its Water Supply Assets are projected to be insufficient to provide for its Cascade Water Alliance Interlocal Contract -17- Amended and Restated November 13, 2002 • needs as determined by the Board (taking into consideration the results of the Water Supply Audit). A Member that joins with Water Supply Assets that are projected to be insufficient to provide for its needs for fifteen (15) years shall immediately pay RCFCs for the number of CERUs representing the deficit as determined by the Board. RCFCs shall be calculated according to the RCFC Methodology, which shall define the analytical steps required to calculate the RCFCs according to the greater of (a) the incremental difference betweemthe average unit cost of expanding the system (i.e., the marginal cost of new capacity) and the average unit cost of the existing system or (b) the average unit cost of past construction of the 'existing system plus then- planned Supply System improvements. The methodology shall provide for an annual escalator, recalculation and update not less frequently than every fifth year, and a methodology for determining CERUs. The RCFCs shall be imposed on the Member for each new CERU of that Member in accordance with the terms of this Contract. Amendnients to the RCFC Methodology shall require a 65% Dual Majority Vote. If a Founding Member owns Water Supply Assets or transfers Water Supply Assets to Cascade under Section 5.1, to the extent the audited capacity of those assets (including Seattle Contract Purveyor rights) exceeds the Member's needs, that Member shall receive a credit against future RCFCs. If a Member seeks to transfer assets substantially in excess of its foreseeable needs, Cascade may negotiate appropriate compensation arrangements for the transfer. Members that develop new Independent Supply that is approved by the Board in accordance with Article 6, similarly receive a credit effective when the Independent Supply is placed in service as determined by the Board. Interlocal Contract Cascade Water Alliance -18- Amended and Restated November 13, 2002 • • • A Member that accepts ownership of a Satellite System that Cascade agrees to serve shall pay an RCFC for the amount of supply needed to serve that system in excess of its rated capacity. Members that experience a net reduction in the number of CERUs served shall receive a CERU- for -CERU credit against future RCFCs. RCFC credits may not be transferred among Members without Board approval. Members shall not be required to pass RCFCs to their customers as capital facilities charges, but may provide for the payment of RCFCs in whatever manner they deem appropriate. For Members joining with an unmet net supply need, Cascade may, under circumstances determined by the Board, require the prepayment of RCFCs allocable to the full amount of the requested supply, i.e., when funds are needed to begin the construction of facilities immediately. Section 5.6 Transfer Upon Mergers, Consolidations and Assumptions. If (a) two or more Members merge or consolidate, (b) a Member or a Non - Member assumes jurisdiction of part or all of a Member, or (c) a Member assumes jurisdiction of part or all of a Non - Member, the jurisdictions' water supply rights from and obligations to Cascade must be transferred or assumed under applicable law and consistent with the requirements of this Contract and the obligations of Cascade. ARTICLE 6. New Independent Supply Members may not bring new Water Supply Assets on -line as Independent Supply without Board approval. That approval may be granted or denied following an evaluation process, based on whether the Board determines that development of the proposed Independent Supply will benefit or be adverse to the interests of the Members as a whole. Recognizing that in certain circumstances the acquisition of additional Independent Supply might benefit (or cause no material harm to) the Members, new supplies under one (1) MGD may be approved by the Board Cascade Water Alliance Interlocal Contract -19- Amended and Restated November 13, 2002 • • regardless of the provisions of the Water Supply Plan and without a formal evaluation process. New supplies in amounts greater than one (1) MGD must be described in and be consistent with the Water Supply Plan. Members that have invested in the development of new Independent Supply assets may I offer to sell their interest in such assets to Cascade. Cascade may, in its sole discretion and subject to mutuallyliagreeable terms and conditions, purchase the Member's interest in such Independent Supply asset by reimbursing or otherwise compensating the Member for its investment in the project to the extent that investment has been capitalized. Once Cascade has purchased a Member's interest in a project, the project will be considered a Water Supply Asset of Cascade and be incorporated into the Water Supply Plan. ARTICLE 7. Asset Management Section 7.1; Supply System Management. Cascade is responsible for managing, on behalf of all Members, the Supply System. Cascade is not responsible for managing Independent Supply unless it has expressly agreed to do so. Supply System management responsibilities shall be governed by Cascade's system management plan adopted by the Board. Cascade's system management plan concerns, without limitation, matters such as daily system operations and maintenance, interface with other supply providers, contractual obligations, water quality, billing, management and administration. Cascade may delegate and/or contract out its Supply System responsibilities. Cascade must manage the Supply System in compliance with applicable laws, regulations and Cascade's minimum service standards. Adoption and amendments to the minimum service standards shall require a 65% Dual Majority Vote. Interlocal Contract Cascade Water Alliance -20- Amended and Restated November 13, 2002 • Section 7.2 Conservation. Cascade shall develop and carry out, and Members must participate in, water conservation programs that are uniform among Members. The Board shall develop and implement a Cascade . conservation management plan that provides a mandatory base conservation program that functions to reduce both average and peak demands. Members may implement additional conservation programs. The Board may adopt wholesale charges in addition to normal Demand Share charges to encourage resource conservation. The Board may also provide or contribute to additional local conservation programs that are not offered to all Members, and these local programs may be locally funded or funded by Cascade. Members that fail to comply with base programs asset forth in Cascade's conservation management plan may be required to assume a disproportionate reduction in water supply or to pay penalty charges, or both. Section 7.3 Shortages and Emergency. Section 7. 3.1 Shortages. Members must respond to water shortages in a collective, shared fashion under a Cascade shortage management plan adopted by the Board. Resources must be shared in a manner that reduces the risk of severe shortages to each Member. Cascade's shortage management plan may include, without limitation, a definition and classification of shortages, a shortage contingency plan including mandatory programmatic actions among all Members in the event of shortages, allocation of authority for determining and responding to shortages, and a communications and outreach program for the public. Members shall not be required to implement Cascade's shortage management plan in areas not served by the Supply System. In the event of shortages, Cascade shall reduce or halt Interruptible Supply before invoking the Shortage Management Plan with respect to all Members with a Full Supply Cascade Water Alliance Interlocal Contract -21- Amended and Restated November 13, 2002 Commitment. However, the Board may, by 65% Dual Majority Vote, continue service in the amounts it deems appropriate to one or more Members receiving Interruptible Supply. The Board may require that Members failing to comply with mandatory shortage management programs implemented under Cascade's shortage management plan assume a disproportionate reduction in supply or pay penalty charges, or both. In the event of a Cascade -wide water shortage, Members with Independent Supply may, without penalty, decline to participate in the shortage management program for that shortage by foregoing all supply from Cascade for the duration of the emergency or shortage. To avoid shortages resulting from emergencies or the inability to develop sufficient supplies, the Board' may, by 65% Dual Majority Vote, establish moratoria on connections or additional commitments for future water services by the Members. A moratorium may be discontinued by a Dual Majority Vote of the Board. Section 7.3.2. Emergency. The Board shall include in Cascade's shortage management plan policies and procedures for addressing short-term disruptions of water supply, transmission or water quality, and it may delegate to the General Manager authority to address such disruptions according to such policies and procedures. Section 7.4 Water Quality. Cascade shall be responsible for water quality that meets or exceeds all federal or State requirements at the point of delivery from Cascade to the Member, consistent with applicable laws and regulations. Cascade assumes source water quality responsibility and liability with respect to Water Supply Assets under its ownership or control (including water wheeled to a Member through another Member's facilities). Cascade is also responsible for preparing and carrying out water quality activities compatible with the water Cascade Water Alliance Interlocal Contract -22- Amended and Restated November 13, 2002 • • • • quality requirements of regional water suppliers integrated with Cascade's system (e.g., Tacoma, Everett and Seattle). Cascade may, in its sole discretion, determine and adjust the appropriate method and level of treatment of water that it supplies, so long as that water meets applicable state and federal requirements. If water that it supplies meets those requirements, Cascade shall not be obligated to adjust the method or level of treatment so that the water can be more readily blended with a Member's Independent Supply or more readily transmitted through a Member's internal system. Each Member shall remain responsible for water quality within its respective distribution system, assuming that adequate water supply quality is provided by Cascade at the point of delivery from Cascade. Each Member shall be responsible for all costs related to making water supplied by Cascade compatible with that Member's intemal system, including, but not limited to, costs of additional treatment. Section 7.5 Water Supply Rates and Charges. The Board shall set rates and charges according to a Rate Calculation Methodology adopted from time to time by the Board. The Rate Calculation Methodology for Members' Supply Commitment shall provide for the definition and calculation of Demand Shares and for a uniform pricing structure with a commodity charge and fixed charges allocated by Demand Share. Cascade may sell water to a Non - Member under terms and conditions established by the Board. The terms and conditions shall not be more favorable than the terms and conditions under which water is sold to Members. Revenue received from the sale of water to Non - Members shall be used to offset or reduce rates and charges to Members to the extent practicable. Cascade Water Alliance Interlocal Contract -23- Amended and Restated November 13, 2002 • • A Member shall be assigned a Demand Share based on the Board's best estimate of capacity to be used by that Member. Initially, the Board may base its estimate on a Seattle Contract Purveyor's use of water from Seattle. For a Member that joins without a supply history as a Seattle Contract Purveyor, or for a Member that has received only part of its water from Seattle, the Demand Share shall be established based on an audit of that Member's past three (3) years of water use. After three (3) years as a Member, the baseline demand and capacity obligation for that Member shall be fixed based on actual experience as a Member. Specific Demand Shares may be set by the Board to account for circumstances, such as (by way of example and not by limitation) costs of extending the Supply System to a Member, or when Independent Supplies affect regional demand patterns. When water supply from Cascade is wheeled through a Member to another Member, Cascade may presume that the first Member receiving the water is the "User" for calculation of Demand Shares unless the Members concerned instruct Cascade to use a different allocation. Rate credits for Water Supply Asset transfers are not deducted in the calculation of Demand Shares but are applied to reduce what a Member would otherwise pay. Each Member must include, in bond definitions or covenants made with respect to bonds that establish new lien positions (or both) and in springing definitions or covenants with respect to parity bonds based on old lien positions (or both), language to the effect that rates and charges paid by that Member to Cascade must be treated as part of their intemal operation and maintenance costs. RCFCs need not be treated as operation and maintenance costs. The Board must set Cascade's rates and charges at levels it determines sufficient to provide adequately, for Operation and Maintenance expenses, Cascade debt service and coverage, replacement and renewal of facilities, reserves and other costs that the Board deems appropriate. Cascade Water Alliance Interlocal Contract -24- Amended and Restated November 13, 2002 • • • The Board may provide that a Member's failure to timely pay rates and charges or to participate in the planning process may result in penalty charges. A Member that has transferred Water Supply Assets shall receive a credit, determined when those assets are audited and transferred, based on the useful life of those facilities and on the Member's use of the water produced by those assets or an amount of water equivalent to the amount of supply from them. The Board may implement wholesale charges (additional to Demand Share -based charges and variable commodity charges) to reduce extreme peak use (e.g., "peaking -off of the pipe "). Water rates and charges must be the same for all Members receiving the same class of service (subject to credits, surcharges and penalty charges). Section 7.6 New Water Surcharge. A new water surcharge of $0.75 per 100 cubic feet (ccf) plus recovery of any penalties imposed by the City of Seattle as a result of exceeding the Cascade Block as defined in a wholesale contract entered into by Cascade with Seattle shall be imposed effective on the Cascade Supply Date and continue through December 31, 2011. It shall be applicable to all water purchased by Members over and above each Member's Old Water Allowance in the Seattle Purveyor Contract, if applicable, or to all water purchased by non - Seattle Purveyor Members. New water surcharge revenues shall be used to offset or reduce rates and charges to Members. Section 7.7 Franchises and Easements. Except to the extent otherwise required by law, each Member shall provide franchises and rights of way on, under or across that Member's streets or other property, to Cascade and to other Members for Water Supply Assets, without charging any fees, rent or charges other than the customary and usual right- of -way permit and Cascade Water Alliance Interlocal Contract -25- Amended and Restated November 13, 2002 inspection fees. Each Member shall use its best effort carrying out the cooperative implementation of this Section 7.7. Section 7.8 Sales of Water to Non - Members. Unless approved by the Board, a Member shall not sell water supplied by Cascade, nor shall a Member sell Independent Supply offset by water supplied by Cascade, to a Non - Member. Notwithstanding the foregoing, any Member may sell water supplied by Cascade to a Non - Member to the extent required by a contract in effect as of the date the Member joins Cascade. ARTICLE 8. Planning Section 8.1 11 Water Supply Plan. Cascade must plan for its Members' water supply needs. That planning shall be to be compatible with the equivalent planning responsibilities of other wholesale water providers and with State, county and city planning responsibilities under the Growth Management Act. The Board must adopt, and may from time to time amend, a Water Supply Plan that must be based on no less than a twenty- (20) year planning horizon. Cascade shall coordinate its planning effort with local and regional utilities and other appropriate agencies and work to encourage cooperative region -wide planning and coordination. Each Member shall actively participate in Cascade's water supply planning and shall provide to Cascade accurate data regarding its facilities and operations together with good -faith estimates of future needs and a description of any involvement in the development of new Independent Supplies. Each Member's water comprehensive or system plan shall be consistent with any plans adopted by Cascade, and shall be consistent with applicable requirements of the Growth Management Act and comprehensive plans. Cascade Water Alliance Interlocal Contract -26- Amended and Restated November 13, 2002 • • • Section 8.2 System Reliability Methodology. Cascade shall develop and adopt a system reliability methodology for planning, operation and management purposes. Adoption and amendments to the system reliability methodology shall require a 65% Dual Majority Vote. ARTICLE 9. Filings This Contract must be filed with the King County Office of Records and Elections or with any other applicable county auditor, in accordance with RCW 39.34.040, and must be submitted for review by the Washington State Department of Health and the Washington State Department of Ecology, in accordance with RCW 39.34.050. ARTICLE 10. Duration and Dissolution; Withdrawal Section 10.1 Duration. Except as provided in Section 10.3, Cascade shall remain in existence for the longer of the following: (a) the period it holds any assets, (b) the period during which bonds issued by it or on its behalf are outstanding, or (c) the period it continues to include Members. Section 10.2 Withdrawals. A Member may notify Cascade of its intent to withdraw by delivery to Cascade of a Resolution of its legislative authority expressing such intent. Upon receipt of such Resolution, the Member shall lose its right to vote and the Board shall determine (1) the withdrawing Member's allocable share of the cost of the then- existing obligations of Cascade; and (2) the withdrawing Member's obligations to Cascade. "Then- existing obligations of Cascade" means obligations or costs incurred by Cascade as of the date the Member's withdrawal notice is received, including, but not limited to, Cascade's debt service obligations, contract obligations and cash financed capital projects; provided that a withdrawing Member's allocable share shall in no event include an obligation for future expenses for which Cascade has not incurred a legal obligation; and provided further, that to the extent the Member's obligation Cascade Water Alliance Interlocal Contract -27- Amended and Restated November 13, 2002 (with respect to such costs) is re -paid over time, the Member shall be entitled to a credit for supply abandoned by the Member and is otherwise used by Cascade. A `withdrawing Member's obligation to Cascade" includes, but is not limited to, the Member's share of fixed operating costs, any other expenses contained in Cascade's adopted budget for that year, and any assessments or other similar charges lawfully imposed by Cascade. For purposes of the preceding sentence, "fixed operating costs" shall be determined in the year of withdrawal, and the Member's obligation with respect to such costs shall be limited only to that amount required to pay for supply abandoned by the Member and not otherwise used by Cascade. The allocable share of cost or obligations shall be determined by the Board, taking into consideration as deemed applicable by the Board, the ratio of the Member's Demand Share to total Member demand; the ratio of the Member's contribution to Cascade revenue to total Cascade revenue including RCFCs; the cost or a portion of the cost of capital projects or facilities specially benefiting the Member; and any other factor the Board deems appropriate to consider. The Member's withdrawal shall be effective on payment of such allocable share or provision for arrangements to pay such allocable share that are satisfactory to the Board. Until the effective date of withdrawal, the Member shall continue to comply with all applicable provisions of this Interlocal Contract. Upon withdrawal, the withdrawing Member shall have no right to, or interest in any Water Supply Assets owned by Cascade. The withdrawing Member shall be deemed to have abandoned any and all rights to service, to the use of Cascade Water Supply Assets or other rights with respect to Cascade (except as otherwise expressly provided in this Contract). Notwithstanding the provisions of this Section 10.2, Cascade will, upon the withdrawal of a Member that has transferred operational control and management of (but not title to) an Cascade Water Alliance Interlocal Contract -28- Amended and Restated November 13, 2002 • • • • • • Independent Supply Asset to Cascade under Section 5.1, return operational control of such asset to the withdrawing Member. Return of operational control and management will be subject to (a) continued use by Cascade, to the extent and for such time as the Board deems such use necessary for Cascade to continue providing service to its Members, and (b) payment or provision for payment of any Cascade costs, including, but not limited, to those associated with the withdrawing Member's Independent Supply Asset. The Board may establish additional generally applicable conditions and requirements for withdrawal. Section 10.3. Dissolution. Cascade may be dissolved by a 65% Dual Majority Vote. Upon dissolution, Cascade's assets initially shall be held by its then current Members as tenants in- common. Each Member's ownership interest must be based on that Member's Demand Share as of the time of the dissolution. Assets must be distributed in accordance with agreement or contract, under a voluntary mediation process, or by a court of law. A court may appoint an arbitrator or special master. Asset distribution shall be based on the best interests of efficient and economic water supply in the entire area served by the Members, subject to a rebuttable presumption that Water Supply Assets will be returned to the Member that originally transferred them to Cascade. That presumption may be overcome by a showing that another asset distribution is in the best interests of efficient and economic water supply. The proceeds of any sale of assets must be distributed among the then current Members based on the Demand Shares at the time of dissolution. Section 10.4 Successor Entity. Notwithstanding the provisions of Section 10.3, upon a 65% Dual Majority Vote (ratified within one hundred and twenty (120) days by 65 %, as measured by Dual Majority Vote of the Members' legislative authorities; all assets, liabilities, Cascade Water Alliance Interlocal Contract -29- Amended and Restated November 13, 2002 and obligations of Cascade may be transferred to any successor entity (including, without limitation, a joint operating agency or other municipal corporation, as permitted under state law and all obligations of Members and parties contracting with Cascade become obligations to the successor entity. ARTICLE 11. Amendments. Amendments to this Contract shall be effective upon approval by 65% Dual Majority Vote (ratified within one hundred and twenty (120) days by 65 %, as measured by Dual Majority Vote, of the Members' legislative authorities. ARTICLE 12. Applicable Law and Venue. This Contract is governed by the laws of the State of Washington. The venue for any legal action arising from: a dispute under this Contract is the Superior Court for King County. ARTICLE 13. No Third Party Beneficiaries. There are no third -party beneficiaries to this Contract. No person or entity other than an agency signatory to this Contract shall have any rights hereunder or any authority to enforce its provisions, and any such rights or enforcement must be consistent with and subject to the terms of this Contract. ARTICLE 14. i Severabffity. If any provision of this Contract or its application is held by a court of competent jurisdiction to be illegal, invalid, or void, the validity of the remaining provisions of this Contract or its application to, other entities or circumstances shall not be affected. The remaining provisions continue in full force and effect, and the parties' rights and obligations must be construed and enforced as if the Contract did not contain the particular invalid provision. But if the invalid provision or its application is found by a court of competent jurisdiction to be Cascade Water Alliance ! Interlocal Contract -30- Amended and Restated November 13, 2002 • • • • • • substantive and to render performance of the remaining provisions unworkable and infeasible, is found to seriously affect the consideration, and is inseparably connected to the remainder of the contract, the entire Contract is deemed void. ARTICLE 15. Entire Agreement. This Contract constitutes the entire and exclusive agreement between the parties relating to the specific matters covered in this Contract. All prior or contemporaneous verbal or written agreements, understandings, representations or practices relative to the foregoing are superseded, revoked and rendered ineffective for any purpose. This Contract may be altered, amended or revoked only as set forth in Article 11. No verbal agreement or implied covenant may be held to vary the terms of this Contract, any statute, law, or custom to the contrary notwithstanding. ARTICLE 16. Execution. This Contract may be executed in one or more counterparts. Signatory Agency By: Title: Date: Attest: Title: Date: Authorized by: Date: (Resolution or Ordinance) Cascade Water Alliance Interlocal Contract -31- Amended and Restated November 13, 2002 • • Cascade Water Alliance: By: Title: Chair Date: Attest: Title: General Manager Date: Authorized by: Resolution No. 2002 -03 Date: November 13, 2002 Cascade Water Alliance Interlocal Contract -32- Amended and Restated November 13, 2002 APPENDIX L CASCADE WATER ALLIANCE WATER SUPPLY COMMITMENT • CASCADE WATER ALLIANCE DRAFT -- WATER SUPPLY COMMITMENT (For inclusion in Members' Comprehensive Plans) Cascade Interlocal Contract and Supply Commitment The Cascade Water Alliance (Cascade) was created on April 1, 1999 as a public body and an instrumentality of its Members, which exercises essential governmental functions on behalf of its Members as authorized by the Interlocal Cooperation Act (RCW 39.31) [the Interlocal]. Cascade is governed by a Board of Directors (Board) consisting of one individual representative appointed by Resolution of each Member's legislative authority. Each Board Member must be an elected official of a Member. Cascade's policies and directives are set by the Board and implemented by Cascade. Cascade, in consultation with the Board, shall examine and investigate water supplies suitable and adequate to meet the present and reasonable future needs of its Members. Cascade shall be the lead agency and primary planning authority for the purposes of fulfilling its obligations to provide for the Full Water Requirements1 of its Members. Cascade's purpose includes only those related to water resources and do not include the provision of other general services to the public, and are to: • provide a safe, reliable and high quality drinking water supply to meet the current and projected demands of its Members serving the Central Puget Sound Region and for non - Members as determined by Cascade, and to carry out this task in a coordinated, cost - effective and environmentally sensitive manner; • develop, contract for, manage, acquire, own, maintain and operate Water Supply Assets including, without limitation, surface water supplies, groundwater supplies, reclaimed water supplies and other water supply resources as determined by the Board; • contract with Seattle Public Utilities (SPU) to purchase water and to modify. Seattle's rights and duties with respect to Seattle Contract Purveyors; ` All of a Member's water supply needs, as projected in the Member's lawfully adopted water supply plan, shall be met from the Supply System, net of independent supply and subject to the other limitations established in this agreement on an equal parity with all other Full Supply Commitments and with a guaranteed priority no lower than for any other Supply Commitment made by Cascade, provided that no Member is guaranteed any given amount of supply or capacity. Cascade Water Alliance 1 DRAFT Water Supply Commitment October 2004 • contract for, or assume certain contractual rights and duties related to the Tacoma Second Supply Pipeline project (TSSP); • purchase and provide water supply, transmission services, treatment facilities and other related services; • provide conservation programs to promote the wise and efficient use of resources; • carry out emergency water supply and shortage management programs for its Members when demands exceed available supply; • coordinate and plan cooperatively with other regional or local water utilities and other entities to maximize supply availability and to minimize system costs; • develop a Transmission and Water Supply Plan (TSP) addressing the needs of its Members and help develop a regional water supply plan with other water providers as Cascade may find convenient or necessary to meet regional, State, and federal planning requirements, and to take a leadership role in developing and coordinating those supply plans; • share costs and risks among Members commensurate with benefits received; and • carry out, or to further other water supply purposes that Members determine, consistent with the provisions of this Contract. Cascade shall prepare and adopt a Transmission and Supply Plan for acquiring water supplies in a timely fashion. The plan shall provide for the lands, waters, water rights and easements necessary therefore, and facilities for retaining, storing and delivering such waters, including dams, reservoirs, aqueducts and pipelines to convey such waters throughout the Cascade water service area (aggregate service area of the Cascade Members). In preparing or adopting the plan, Cascade shall consider as possible alternatives or additional water supply sources the acquisition of water from sources controlled and/or developed by individual water utilities, legally constituted groups of water utilities and utilities which are not presently supplied by Cascade. Cascade has final responsibility for the plan and for fulfilling the obligations of the Interlocal between Cascade and its Members. The Interlocal requires Cascade to supply the full water requirements of its Members to meet the needs of their present and future water demands within each Member's service area (as that service area is defined in terms under which the Member was admitted) as shown in the Members' and/or Cascade's water comprehensive plan or demand projections developed by Cascade in concurrence with its Members. The demand projections are or will be based on accepted employment forecasts, regional growth pattems, historic trends, and assumed efficiencies resulting from demand management programs. Cascade Water Alliance ' 2 DRAFT Water Supply Commitment October 2004 • Cascade will supply water to its Members except for the quantity of water presently obtained by a Member from its Independent Supply2 or other sources, or committed to be obtained from other sources. Members may use other sources of supply such as interconnections with other purveyor's system or development of wells subject to the provisions of the Interlocal. In the event a Member acquires additional service area that is: 1) located outside the service area identified in its comprehensive water system plan(s); and 2) which is not already served with Cascade water, then Cascade shall supply the water requirements of the additional service area subject to a) Cascade's ability to serve the area, and b) adherence to the urban growth boundaries, and c) other provisions defined in the Interlocal. Demand Forecasts The policy of Cascade is to supply wholesale water to its Members at the twenty -four hour average flow rate (Annual Average Demand [AAD] and Maximum Day Demand [MDD]). Members are expected to provide storage for peaking above such average flow rates. The Cascade demand forecast is a composite of its Members' demand forecasts. The demand forecasts were developed by each Member and are included in their Washington Department of Health (DOH) approved Water Supply Plan or pending Draft Water Supply Plan(s). Table 1 lists the supplies available to Cascade. I. \13LE 1 NEAR -TERM SUPPLY VS DEMANDS 1. Supplies include: Independent, Contracted and Pending Contract of 15 and 20 MGD AAD and MDD, respectively from TPU. 2. Aggregate Demand forecast. 2020 forecasted AAD & MDD demands are 57 MGD and 134 MGD, respectively. The demand forecast does not consider the use of reclaimed water. The TSP will include a demand forecast of seasonal and annual demands that are potential levels of use for reclaimed water. Table 1 illustrates that Cascade has more than sufficient supplies to meet its Members' forecasted AAD and MDD water supply needs through the next fifteen years. The Cascade TSP identifies several potential water supply sources including Lake Tapps, to address potential 2 A Member's Water Supply Assets that are not owned by Cascade. Cascade Water Alliance 3 DRAFT Water Supply Commitment October 2004 demand shortfalls beyond fifteen years and provides strategies and recommendations for effective water supply management. It also includes the specific tasks and milestones for implementation of the recommendations. To ensure that demands do not outpace the supply available to Cascade, starting in 2005 Cascade will track the total monthly water consumption of its Members using a database of the monthly water production data from Members including wholesale meter records, well pumping records from Member independent supplies, and the SPU wholesale supply data. The quantity of water supplied to Cascade from SPU is currently tracked monthly. Cascade anticipates updating its demand projection in the next two /three years or revising the existing demand projections to comply with House Bill 1338 (HB 1338) when adopted. Shortages and Emergency Any Full Supply Commitment shall be subject to water shortages, to Cascade's ability to implement the Plan, and to the portion of each Member's needs that can be served by the audited capacity of its Independent Supply. If the needed supply is not available, the shortage shall be shared by all Members in accordance with conditions of the Interlocal and pending Cascade Water Shortage Contingency Plan (expected to be complete in 2005). In the event of emergency supply conditions or water shortage, Cascade has adopted the Seattle Public Utilities' (SPU) Water Shortage Contingency Plan (until the Cascade Water Shortage Contingency Plan is completed) to assure that basic water service is met and that the burden of the shortage is borne equitably among all customer groups. A Member may also adopt its own emergency plan if it believes it is prudent to do so. The SPU Water Shortage Contingency Plana is divided into two principle sections: Drought Curtailment Plan and an Emergency Curtailment Plan. It provides a tailored approach to water shortages with the responses becoming more aggressive as the conditions become progressively worse. The steps included in the Drought Curtailment Plan are: • Advisory Stage — Implementation of supply management options that forestalls or minimizes the need for more stringent management actions in the future. • Voluntary Stage — To maintain or reduce demand to meet target consumption levels through voluntary actions. • Mandatory Stage — The restriction of certain defined water uses in order to meet target consumption goals. 3 SPU Water Comprehensive Plan Cascade Water Alliance 4 DRAFT Water Supply Commitment October 2004 • • • • • • • Rationing Stage — The rationing of water. Customers are allocated a set amount of water and pay substantial surcharges for excess water above their allocation. • The Emergency Curtailment Plan outlines the strategies for dealing with unanticipated water shortages due to infrastructure failure, natural disasters, etc. During a shortage, Cascade shall reduce or halt Interruptible Supply before invoking the Shortage Management Plan with respect to all Members with a Full Supply Commitment. However, the Board may, by 65% Dual Majority Vote4, continue service in the amounts it deems appropriate to one or more Members receiving Interruptible Supply. In the event of a Cascade -wide water shortage, Members with Independent Supply5 may, without penalty, decline to participate in the shortage management program for that shortage by foregoing all supply from Cascade for the duration of the emergency or shortage. To avoid shortages resulting from emergencies or the inability to develop sufficient supplies, the Board may, by 65% Dual Majority Vote, establish moratoria on connections or additional commitments for future water services by the Members. A moratorium may be discontinued by a Dual Majority Vote of the Board.. The extensive number of existing inter jurisdictional agreements among Members provides Cascade the ability to move water to its Members through existing interties6 and interconnections'. The numerous interties and interconnections increase reliability and efficiency between Members. Cascade Regional Water Supply Options Wholesale water to Member utilities is currently supplied via 36 interties with SPU's water distribution system. Additional interties with the Tacoma Public Utilities' (TPU) water distribution system are anticipated prior to 2008, and other water utilities as defined in the pending Cascade Water Comprehensive Plan (2004/2005). Each Member has at least three service connections with the SPU water system, with most of the utilities having many more. The supply meters were sized to provide the required level of service. 4 Board approval of a proposal on the basis of a 65% supermajority vote of all Members, allowing one vote per Member, together with 65% supermajority vote of all Members on the basis of each Member's Weighted Vote. A "supermajority" means 65% of all Members, not just the Members present and voting. 5 A supply of all or part of a Member's water needs from the Supply System on an as- available basis on a lower priority than any Full Supply Commitment. The Supply Commitment for a Member shall be defined by the Interlocal Contact, the terms and conditions of Membership, and the Supply Commitment Resolution. The Supply Commitment for a non - Member shall be defined by the terms and conditions of a specific contract between Cascade and the non - Member. 6 Metered connection between Members Metered connection between the SPU system and Cascade Cascade Water Alliance 5 DRAFT Water Supply Commitment October 2004 Cascade will receive the majority of its potable water supply from SPU and TPU for the next 15. to 20 years. Cascade then anticipates transitioning to Lake Tapps and other sources of supply (included in the TSP) with continuing, although declining, supply commitments from SPU and TPU. Prior to the formation of Cascade, a number of Members had purveyor contracts with SPU through which SPU provided the utility's full requirements or met demands above the utility's other supply sources. After the formation of Cascade, Members relinquished their individual contracts with SPU in lieu of having one agreement between Cascade and SPU. Members continue to have contracts with other adjacent water systems to purchase water. Many of these agreements were developed to provide emergency supply and are not actively used on a daily basis. However, Covington and Skyway have contracts in place with adjacent water utilities that allow them to receive a continuous supply of potable water. Listed below are the existing and potential water supply agreements and options available to Cascade: • 50 -Year Declining Block Water Supply Agreement with SPU (effective January 1, 2004), the Block Contract • Pending Wholesale Water Supply Agreement with TPU • Pending purchase from Second Supply Project Partners and/or other utilities • Lake Tapps iWater Reservoir • Reclaimed Water • Conservation • Additional purchases from SPU and/or TPU if necessary and reasonable, subject to negotiation in the future • Purchases from other regional sources developed in the future and/or development of alternative new sources of supply by Cascade in the future, if necessary and reasonable. A Block Contract between Cascade and SPU for the sale and purchase of potable water was reached in 2003 with an effective date of January 1, 2004. The quantity of water SPU is obligated to provide (and Cascade is obligated to purchase) through December 31, 2023 (the Cascade Water Supply and Transmission Plan 20 -year planning period) is 30.3 MGD on an Average Annual Day (AAD) basis (up to 41 MGD Peak Season; 51.2 MGD Peak Month). Water in excess of these amounts may be supplied by SPU at a surcharged rate. The surcharge may be passed directly on to the Member(s) exceeding its projected demand. However, SPU does have the option to refuse Cascade's request for additional supply. Cascade Water Alliance Water Supply Commitment 6 DRAFT October 2004 • • • • An agreement between Cascade and TPU for the sale and purchase of potable water is being negotiated in accordance with the April 2003 Agreement in Principle (AIP). TPU would supply Cascade approximately 15 MGD AAD (20 MGD Peak) beginning in 2008 and through December 2025. Available volume would decline after 2005. TPU anticipates final completion of its Second Supply Project (TSSP) in 2008. Cascade and TPU are also evaluating near -term (prior to 2008; possibly utilizing existing interconnections) water supply options. The signing of the TPU and Cascade contract is expected to take place in the next three to six months. Cascade is developing long -term transmission alternatives to convey the pending contracted water supply from TPU throughout the Cascade water service area. The design and construction of new, large transmission, pumping and storage projects is expected to be completed by fall 2008. Additional supply over the 20 -year planning period is also anticipated from TSSP via Covington or other TSSP partners. Puget Sound Energy (PSE) and Cascade are jointly pursuing the issuance of water rights to allow development of the Lake Tapps Reservoir as a public water supply. The permit granted to PSE by the Washington Department of Ecology (DOE) on June 30, 2003 was appealed and remanded back to DOE by the Pollution Control Hearings Board (PCHB) in July 2004. The water rights are expected to be reissued in the next two to four months. Cascade and PSE are negotiating the terms under which Cascade would acquire the water rights and other assets necessary to put the water rights to beneficial use following final issuance of the permits. The terms of the existing water rights would allow for the consumptive use of up to 65 MGD AAD after the construction of the necessary water supply infrastructure. Cascade views the Lake Tapps Reservoir as a supply option that may or may not be required by Cascade within the 20 year planning period depending on variables such as Expansion of Cascade Membership and actual population growth, the ability to effectively and economically utilize reclaimed wastewater, and effectiveness of the implemented conservation measures. King County Metro has developed capacity for producing reclaimed water that could be made available for non - potable uses. Cascade anticipates the use of reclaimed water where it is cost - effective and appropriate as an alternative source for existing and future water utility customers. Tukwila currently receives reclaimed water from Metro's Renton Wastewater Treatment Plant and uses it for irrigating athletic fields. There is potential for Tukwila to receive additional reclaimed water in the future. There is also potential for development of satellite treatment plants to produce additional supplies of reclaimed water for use in other Member service areas. Use of reclaimed water can offset demand for potable supplies, particularly during the summer peak season. Therefore, development of additional opportunities for reclaimed water supply will be considered in the Cascade Plan. King County Metro has commissioned a study to evaluate potential avenues of use for reclaimed water. Cascade and King County Metro will jointly explore opportunities for the beneficial and economically viable use of reclaimed water. Water conservation is viewed as an essential part of Cascade's overall strategy. Cascade regional activities are intended to supplement and complement, not fully replace individual Member conservation programs. On May 26, 2004, the Cascade Board approved the Transition Cascade Water Alliance 7 DRAFT Water Supply Commitment October 2004 Water Conservation Program with a budget of $459,000 which provides for development of a long -term (through, 2010) Cascade Conservation Program. The transition program includes: 1) public education, communications and promotions; 2) incentive (rebate) programs; 3) technical assistance (audits); and 4) monitoring and evaluation. The Cascade Conservation Plan is expected to be completed and adopted by the Board in 2005. Coordination of WSP Updates The Washington State Department of Health (DOH) requires that an updated water system plan be submitted for review every six years. All Members have either recently submitted a WSP or will be submitting a WSP to DOH in 2005. The Cascade WSP will also be submitted to DOH in 2005. While DOH requires that a WSP be updated a minimum of every six years, there are additional items to which Cascade needs to monitor and respond. For example, Cascade will need to actively monitor and evaluate the evolution of other plans and policies that may influence the implementation. of Cascade's WSP. Exhibit B lists a proposed schedule . to synchronize the coordination and submittal of Cascade and individual Members' WSPs. The schedule is designed to allow for the submittal of all Members' WSP in the same calendar year. The steps listed below will be followed to achieve the schedule: • Cascade would provide key pieces (as identified in the Table) to Members no later than one year before the Members' WSP is to be updated and submitted to DOH (2004, 2008/2009)_ • Members would update and deliver their respective WSPs to DOH in the same calendar year (2010). • Cascade will use the information developed in Members' WSPs to complete the development of its WSP and submit the plan to DOH no later than one year after submittal of Members' WSP (2011). Cascade Water Alliance Water Supply Commitment 8 DRAFT October 2004 • • • EXHIBIT A • AMOUNT OF WATER TO BE SUPPLIED Cascade shall plan for and construct facilities to supply the water requirements of its Members and as forecasted by each Member or developed by Cascade in concurrence with each Member. The specified amount of water to be supplied by Cascade and purchased by each Member will be: • All water requirements of the Member as conditioned by the Interlocal. List of documents, commitments, adjustments, reductions, agreements and/or written approvals regarding the supply, purchase and/or resale of water according to the Interlocal: ITEM DATE 1. 2. 3. 4. Cascade Water Alliance 9 DRAFT Water Supply Commitment October 2004 EXHIBIT B COORDINATION BETWEEN THE DEVELOPMENT OF TIME SEQUENCING OF CASCADE'S Next Scheduled WSP Submittal .: (Year) WSP AND MEMBERS' Time Sequendng Submittal of WSP (Coordinated WSP Submittal)" (Year) WSP Time Between Most Recent. Submittal and Coordlnated WSP Submittal . (Year) j i Cascade Member ; Date of Most Recent Accepted WSP Bellevue I December 1998 2005 2010 5 Covington February 1994 2005 2010 5 Issaquah ! 2002 2008 2010 8 Kirkland March 1998 2005 2010 5 Redmond March 2003 2009 2010 7 Sammamish Plateau October 2000 2006 2010 4 Skyway 1999 2004 2010 6 Tukwila February 1999 2005 2010 5 Cascade I N/A 2005 2011 6 Key Components of Cascade WSP submitted early to Members • Demand 1 I Projections . , N/A 2005 2008/2009 3 -4 • Water Supply Evaluation N/A 2004 2008/2009 3-4 • Policy3 N/A 2005 2008/2009 3 -4 1. Includes a comprehensive demand projection for Members 2. Supply agreements; Supply commitments, development of sources, asset development and acquisitions 3. Amendments to the Interlocal, local or state policies, etc. Cascade Water Alliance i 10 DRAFT Water Supply Commitment October 2004 • • • APPENDIX M CASCADE WATER ALLIANCE AND SEATTLE CONTRACT • • • • 50 -YEAR DECLINING BLOCK WATER SUPPLY AGREEMENT BETWEEN THE CITY OF SEATTLE AND THE CASCADE WATER ALLIANCE 50 -Year Declining Block Water Supply Agreement 10 -02 -03 1 • ARTICLE I ARTICLE II ARTICLE III ARTICLE IV ARTICLE V ARTICLE VI ARTICLE VII ARTICLE VIII ARTICLE IX ARTICLE X ARTICLE XI ARTICLE XII TABLE OF CONTENTS LIST OF SECTIONS AGREEMENT 3 DEFINITIONS 3 SUPPLY 5 TRANSMISSION 7 WATER QUALITY 8 CONSERVATION 8 PLANNING 8 COST RECOVERY 9 ADMINISTRATION 15 TECHNICAL COMMITTEE 1.7 DISPUTE RESOLUTION 1 7 UNFORESEEN AND UNAVOIDABLE EVENTS 17 LIST OF EXHIBITS Other Agreements Points of Delivery Block Allocation by Individual Water Utilities Seattle Supply System Facilities Seattle Transmission System Facilities Cost Centers used for Operations Cost Indexes Cascade Sub- regional System Facilities 50 -Year Declining Block Water Supply Agreement 2 • 50 -YEAR DECLINING BLOCK WATER SUPPLY AGREEMENT BETWEEN THE CITY OF SEATTLE AND THE CASCADE WATER ALLIANCE This Agreement between the City of Seattle, a municipal corporation ( "Seattle "), and the Cascade Water. Alliance, a non - profit organization of municipalities formed under authority of Chapter 39.30 RCW ( "Cascade "), is dated this day of , 2003 to be effective January 1, 2004. Whereas Seattle is a regional water supplier currently providing service to numerous water utilities in King County Washington; and Whereas the Cascade Water Alliance was formed for the purpose of providing water supply to its Members; and Whereas the Cascade Water Alliance, desires to enter into a single agreement for water supply with Seattle for some of its Members in lieu of these Members' existing separate contracts with Seattle; Now therefore, Seattle and Cascade agree to the following terms and conditions for the provision and purchase of a 50 -year declining block water supply. • ARTICLE I - AGREEMENT Seattle agrees to sell to Cascade and Cascade agrees to purchase from Seattle, according to the terms of this Agreement, a wholesale supply of water and the transmission capacity sufficient to deliver such water supply to Cascade. The term of this Agreement is fifty (50) years, with an effective date of January 1, 2004 and a termination date of December 31, 2053. Apart from the contract right to purchase water from Seattle under the terms of this Agreement, neither Cascade nor any Cascade Member has any right or claim to the Seattle Water System, the Cedar and Tolt Rivers and to the Highline Well Fields, or to any other water right or claim held by Seattle. Likewise, Seattle shall have no right or claim to the Cascade Water System or to any groundwater right or claim held by any Cascade Member, or to any future source of supply developed by Cascade or by any of its Members. At the termination of this Agreement, Seattle shall have no further obligation to supply Cascade or any Cascade Member with water, with the exception of Cascade's right to purchase up to 5.3 MGD as set forth in Section 3.5. ARTICLE II - DEFINITIONS Average Daily Demand ( "ADD "). The amount of water supplied by the Seattle Water System to Cascade in a calendar year divided by the number of days in that calendar year. AWWA. American Water Works Association. 3 50 -Year Declining Block Water Supply Agreement Cascade Block. The total amount of water Seattle commits to supply Cascade under this Agreement, as more fully expressed in Article III. Cascade Member. A municipal water supplier that has entered into a M embership Agreement with the Cascade Water Alliance. Cascade Sub - regional System. Seattle Transmission assets serving Cascade Members as listed in Exhibit VII. Cascade Volume Charge. In any year, the Cascade Volume Charge is the average cost to Cascade of each million gallons of water in the Cascade Block. The Cascade Volume Charge shall be calculated by dividing the projected annual cost of the Cascade Block calculated in accordance with Section 8.9.B, by the product of the Cascade Block and 365. Cascade Water System. Tangible and intangible assets owned or operated by Cascade useable in connection with the provision of water supply. Existing Supply System Facilities. Seattle Supply System assets as listed in Exhibit N. Existing Transmission System Facilities. Seattle Transmission System assets as listed in Exhibit V. Firm Yield. The estimated amount of water that Seattle's Supply System can provide according to Seattle's supply reliability standard and expressed in annual average MGD. For purposes of this contract, Seattle's Firm Yield is 171 MGD, unless modified pursuant to Section 3.2. Management Agreement. A written agreement, pertaining to subjects authorized by this Agreement, between the Director, Seattle Public Utilities, and the General Manager, Cascade Water Alliance. MGD. Million gallons per day. Party (ies). Seattle and/or Cascade, as well as their respective successors and assigns. Peak Month. The consecutive thirty- (30) day period during a calendar year in which Cascade puts its maximum demand upon the Seattle Water System. Peak Season. June 1 through September 30. Points of Delivery._ Specific metered delivery locations at which Seattle provides a defined level of service. Rate of Return on Investment. The average cost of debt of the Seattle Water System plus 1.5 percent. 4 50 -Year Declining Block Water Supply Agreement • • • • Seattle Water System. The Seattle Supply System as listed in Exhibit IV and the Seattle Transmission System as listed in Exhibit V together comprise the Seattle Water System. Sub - regional Facilities. Any facilities owned and operated by Seattle that are not identified as Existing Supply System (Exhibit N), Existing Transmission System (Exhibit V), or Cascade Sub - regional System (Exhibit VII). ARTICLE III - SUPPLY 3.1 Each calendar year from the effective date of this Agreement through December 31, 2023, Seattle shall make available to Cascade 30.3 MGD Average Daily Demand (the "Cascade Block ") based on the current Membership of Cascade as set forth in Exhibit III. 3.2 In the event the Firm Yield of the Seattle Supply System is reduced, the Cascade Block will be reduced in proportion to such reduction in Firm Yield only if the Firm Yield is reduced by order of a State or Federal regulatory agency with appropriate jurisdiction or as the result of updated climatic data utilized in the hydraulic model used to calculate Firm Yield. Cascade shall be notified of any potential change in Firm Yield as far in advance as possible, but in no event less than 180 days prior to the effective date of an adjustment to Firm Yield that affects the Cascade Block. 3.3 Seattle will supply the Cascade Block during the Peak Season and Peak Month as follows below and will be adjusted proportionately in relation to the decreases identified in Section 3.4:. A. During the Peak Season Cascade demand shall not exceed 41.0 MGD B. During the Peak Month Cascade demand shall not exceed 51.2 MGD 3.4 The Cascade Block shall be adjusted in accordance with the following schedule: A. Beginning January 1, 2024 through December 31, 2029 Seattle shall make available to Cascade 25.3 MGD Average Daily Demand; B. Beginning January 1, 2030 through December 31, 2034 Seattle shall make available to Cascade 20.3 MGD Average Daily Demand; C. Beginning January 1, 2035 through December 31, 2039 Seattle shall make available to Cascade 15.3 MGD Average Daily Demand; D. Beginning January 1, 2040 through December 31, 2044 Seattle shall make available to Cascade 10.3 MGD Average Daily Demand; E. Beginning January 1, 2045 through the termination date of this Agreement Seattle shall make available to Cascade 5.3 MGD Average Daily Demand. 3.5 At the conclusion of this Agreement, Cascade shall have the right to purchase up to 5.3 MGD for the sole purpose of serving Cascade Members that cannot be economically served by any other means than the Seattle Transmission System. The right to purchase up to 5.3 MGD shall be exercised by Cascade upon a minimum of one year's written notice to Seattle prior to the expiration of the Agreement, specifying the Block of water from zero to 5.3 MGD and the Cascade Members to be served by that Block. 5 50 -Year Declining Block Water Supply Agreement 3.6 All water supplied to Cascade under this Agreement is for the purpose of re -sale to Cascade Members and other customers of Cascade; provided that all water supplied under this Agreement must be used within the designated place of use of Seattle's water certificates, permits, or claims. 3.7 A. Before December 31, 2011, if an agency identified in Exhibit III becomes a Cascade Member, Seattle will release that agency from its obligations under its existing water supply contracts with Seattle in accordance with the provisions of such contract and the Cascade Block will be increased by the allocated amount of water identified in Exhibit III, with corresponding proportional increase to the adjusted Cascade Block in Sections 3.3 and 3;.4. If that agency takes delivery of all or a portion of its water through a Sub - regional Facility, Cascade and Seattle shall enter into a Management Agreement for the costs of such facility prior to increasing the Cascade Block. B. Before December 31, 2011, if a Cascade Member, previously a Seattle wholesale customer, withdraws from Cascade and contracts for water supply directly with Seattle, Cascade will release that Member from its Membership Agreement in accordance with the provisions of such Agreement, and the Cascade Block will be decreased by the amount of allocated water identified in accordance with the provisions of such Agreement in Exhibit III, with corresponding proportional decrease to the adjusted Cascade Block in Sections 3.3 and 3.4. If that agency takes delivery of all or a portion of its water through a Cascade Sub - regional System Facility, Cascade and Seattle shall enter into a Management Agreement for the costs of such facility prior to decreasing the Cascade Block. 3.8 For the purpose of determining the consecutive 30 -day period, which constitutes the Peak Month, a daily average delivery may be calculated so long as meter readings occur no fewer than 26 days apart. In such cases, daily average delivery shall be calculated by dividing the total deliveries by the actual number of days between meter readings. Periods less than 26 days shall not be applicable for determining the Peak Month. 3.9 Daily average delivery during the Peak Season may be calculated using meter readings taken closest to June 1 and September 30 each year and dividing the total delivery during such time by the actual number of days between meter readings. Periods less than 110 days shall not be applicable for determining the Peak Season. 3.10 Seattle shall endeavor to read the meters at all Points of Delivery on the same day. In the event that meters at all Points of Delivery cannot be read on the same day, all meter reads for that metering period shall be considered to occur on the day on which the meters measuring the of the Cascade volume for that metering period were read. 3.11 Normal operation of the water system includes the periodic shutdown of various facilities for routine !maintenance, rehabilitation and replacement. Seattle and Cascade shall cooperate in the timing of such activities. Cascade shall not use such activities as evidence of the unavailability of supply or transmission services provided by Seattle under this Agreement so long as Seattle proceeds in good faith to restore such facilities to service. 1 50 -Year Declining Block Water Supply Agreement 6 • • 3.12 Nothing in this Agreement, including, but not limited to, any penalties for exceedance of the Cascade Block, shall be construed to require Seattle to sell or deliver water in excess of the following amounts: A. Total deliveries during a calendar year in the amount of the Cascade Block multiplied by 365 days (366 in leap years); B. Total deliveries during the Peak Season in the amount of the Cascade Block multiplied by 165 days; C. Total deliveries during the Peak Month in the amount of the Cascade Block multiplied by 51 days; D. Total deliveries during any consecutive 30 -day period from October 1 to May 30 in the amount of the Cascade Block multiplied by 30 days; E. Total deliveries during any consecutive 7 -day period in the amount the Cascade Block multiplied by 13 days; F. Total deliveries within any one -day period in the amount of the Cascade Block multiplied by 2 days. Upon notice by Seattle of exceedance of these limits, Cascade must immediately reduce its deliveries of Seattle water. Upon the failure of Cascade to reduce its demand, Seattle may install and operate devices that limit deliveries to Cascade to these amounts, all at Cascade's expense. ARTICLE IV - TRANSMISSION 4.1 Each calendar year during the term of this Agreement, Seattle shall sell to Cascade and Cascade shall purchase from Seattle capacity in the Seattle Transmission System according to the following terms and conditions: A. Seattle shall provide capacity sufficient to supply the Cascade Block to Cascade at Cascade's Points of Delivery. Adjustments in the Cascade Block shall result in an equivalent adjustment in Seattle's Transmission capacity commitment. The specific Points of Delivery that are to be adjusted and the adjustment for each Point of Delivery shall be determined by Management Agreement so long as a determination is made that there is no adverse impact on the overall Seattle Water System. B. Points of Delivery are identified in Exhibit II. The location, hydraulic gradient and instantaneous flows at each Point of Delivery may be changed by Management Agreement. C. Seattle shall supply water at the inlet side of each Point of Delivery meter at a hydraulic gradient no less than the minimum identified in Exhibit II and with an instantaneous flow rate not to exceed that Point of Delivery's peak day demand as set forth in the same exhibit. Seattle may change the minimum hydraulic gradient at any Point of Delivery once during any fifteen -year period, provided that four years prior notice is given to Cascade. Under emergency conditions or other unusual short-term operating situations Seattle shall not be obligated to meet minimum hydraulic gradients. SO-Year Declining Block Water Supply Agreement D. Cascade; may request additional Points of Delivery from the Seattle Transmission System, which Seattle may approve or reject at its sole discretion. Seattle shall establish the minimum hydraulic gradient for any new Point of Delivery at its sole discretion, after consultation with Cascade. Changes in Points of Delivery shall be determined by Management Agreement. E. No provision of this Agreement shall be construed to require Seattle to provide more than the instantaneous flow identified in Exhibit II. Upon notice by Seattle, Cascade shall immediately reduce Cascade deliveries at a Point of Delivery to not more than those identified in Exhibit II. In the event that Cascade is unwilling or unable to reduce deliveries as required under this provision, Seattle may install and operate flow restricting devices at non - compliant points of delivery, all at Cascade expense. 4.2 Cascade is served, in part, by transmission facilities referred to as the Cascade Sub - regional System listed in Exhibit VII. The costs of operating, maintaining, repairing and replacing these facilities shall be the responsibility of Cascade as outlined in Sections 8.6 and 8.7 below. 4.3 Nothing herein shall restrict Cascade's authority to construct an independent water transmission system for its own water supply. 4.4 Cascade Members have interties, listed in Exhibit I, with adjacent water utilities that are non - Cascade members. Any existing agreements related to the billing and meter reading arrangements for these interties are assumed as a part of this Agreement. If new interconnections between Cascade or Cascade Members and non - Cascade members require similar billing and meter reading arrangements, such arrangements shall be defined in an agreement to be entered into by Cascade, Seattle and the non - Cascade member. ARTICLE V - WATER QUALITY Seattle shall be responsible for water quality within the Seattle Water System, and it shall supply water to Cascade, that meets or exceeds federal and state drinking water quality standards, as those standards may change from time to time. ARTICLE VI - CONSERVATION Each Party is committed to the principles of water conservation and each intends to achieve its anticipated savings by implementing water conservation programs either unilaterally or in partnership with other agencies. ARTICLE VII - PLANNING AND SHORTAGE MANAGEMENT 7.1 Each Party recognizes its obligation to plan for water supply and distribution in compliance with the State Department of Health water system planning regulations. Each Party shall develop a water system plan for its service area and the Parties shall coordinate those elements of 'overlapping responsibilities. 8 50 -Year Declining Block Water Supply Agreement • • • • • 7.2 Cascade and Seattle shall coordinate the development, adoption and implementation of their respective Water Shortage Management Plans. Before invoking its Water Shortage Management Plan, the Parties shall communicate with each other concerning current and projected water supply conditions. 7.3 Seattle has negotiated agreements with federal agencies, state agencies and tribes for the long term preservation and enhancement of watersheds and in -stream beneficial uses and habitat. Such agreements have direct bearing on decisions to curtail the amount of water available for municipal and industrial water supply in any given season. Any water use restrictions imposed under the terms of such agreements shall be borne proportionately by Seattle, its other wholesale customers, and Cascade with respect only to the size of the Cascade Block at the time curtailment is required. ARTICLE VIII - COST RECOVERY 8.1 The provisions of this Article shall apply to the establishment of fees and charges for water supply and related services beginning January 1, 2004. Prior to that date, the pricing provisions of each Cascade Members' individual water supply contract with Seattle shall be maintained. 8.2 For the purposes of allocating costs of water supply, there shall be two water supply cost pools consisting of an existing Seattle water supply assets cost pool ( "Existing Supply Cost Pool ") and a new Seattle water supply assets cost pool (the "New Supply Cost Pool "). A. Existing Supply Cost Pool. The costs of infrastructure, including operation, maintenance, repair and replacement of Seattle Supply System Facilities listed in Exhibit IV shall be included in the Existing Supply Cost Pool B. New Supply Cost Pool. The costs of water supply resources developed in the future ( "New Supply Resources ") that expand the capacity of the Seattle Supply System, including the costs of the 1% conservation program from January 1, 2004 through 2010 shall be included in the New Supply Cost Pool. If any portion of a New Supply Resource project enhances reliability of Existing Supply Resources, the costs thereof may be allocated to the Existing Supply Cost Pool by Management Agreement. 8.3 For purposes of determining the cost of the transmission of water to the Wholesale Customers there shall be three transmission cost pools consisting of an existing transmission cost pool ( "Existing Transmission Cost Pool "), a new transmission cost pool ( "New Transmission Cost Pool "), and a Cascade transmission cost pool ( "Cascade Sub - regional System Cost Pool "). A. Existing Transmission Cost Pool. Costs to be allocated to the Existing Transmission Cost Pool shall consist of the following: operation, maintenance, repairs and replacements to the Seattle Transmission System Facilities listed in Exhibit V. Costs incurred for purposes of transmission reliability may be included in the Existing Transmission Cost Pool by Management Agreement. 50 -Year Declining Block Water Supply Agreement 9 B. New Transmission Cost Pool. The cost of new transmission facilities shall be included in the New Transmission Cost Pool. A portion of the renewal, replacement or modification of existing transmission facilities which create an expansion of transmission capacity may be allocated to the New Transmission Cost Pool. C. Cascade Sub - regional System Cost Pool. The costs of operating, maintaining, repairing and replacing the Cascade Sub - Regional System Facilities owned by Seattle and listed in Exhibit VII shall be included in the Cascade Sub - regional System Cost Pool, in an amount proportionate to the use of the facilities by Cascade, together with any other costs Cascade and Seattle agree to include by Management Agreement. In the event that Cascade ceases to receive water through one or more of the facilities in the Cascade. Sub - regional System, these facilities may be decommissioned at Seattle's sole discretion, and Cascade shall pay Seattle for the remaining Net Book Value of the decommissioned facilities in an amount proportionate to the use of the facilities by Cascade together with any decommissioning costs. 8.4 A. If Seattle determines that changing the location of a Cascade Point of Delivery is required' for the improved operation of the Seattle Transmission System then such costs shall be included in the Existing Transmission Cost Pool. Seattle shall notify Cascade of any proposed changes to a Cascade Point of Delivery and consult with Cascade to ensure minimal impact on the affected Cascade Member's distribution system and appropriate coordination of operation and construction activities. B. The costs of replacing, relocating, maintaining or improving Cascade Points of Delivery for any other reason than Section 8.4.A. shall be borne by Cascade regardless of the cause provided that such cause is consistent with AWWA and safety standards and practices. Costs will be invoiced and due in 30 days upon receipt or as otherwise provided for by Management Agreement. Seattle shall notify Cascade of any proposed improvements to a Cascade Point of Delivery and consult with Cascade to ensure minimal impact on the affected Cascade Member's distribution system and appropriate coordination of operation and construction activities. 8.5 Seattle shall'; maintain a cost accounting system consistent with the provisions of this Agreement and generally accepted accounting principles consistently applied in developing the fmancial information for determining the costs of construction, replacement, maintenance and operation of the facilities in each cost pool. A. Asset Accounts. An asset account shall be maintained for each facility and within that account Seattle shall record the original cost of that facility plus betterments and less retirements. B. Depreciation. Facilities shall be depreciated according to Standard Water System Asset Lives and a record of life -to -date depreciation shall be maintained for each facility. No . depreciation shall be recorded in the first calendar year of operation of a facility. A full year's depreciation shall be recorded in every subsequent year. 10 50 -Year Declining Block Water Supply Agreement • • C. Net Book Value. The net book value of any facility shall be its original cost plus betterments and less retirements as recorded in its facility asset account, less life -to -date depreciation. 8.6 Costs in each cost pool shall be calculated as follows: A. Infrastructure Costs. Each cost pool shall include the infrastructure costs for its respective facilities, calculated on a utility, cash or other basis depending upon the facility and the cost pool as set forth below. 1. Utility Basis. The utility basis shall be used to calculate the infrastructure costs for all Existing Supply Facilities, all Existing Transmission Facilities, and all Cascade Sub - Regional System facilities, as well as their replacements and betterments. Under the utility basis, the infrastructure cost for a facility in any year shall be the sum of (i) the annual depreciation expense recorded for that facility and (ii) the product of the net book value of that facility and the Rate. Of Return On Investment. At Seattle's discretion, interest costs may be considered current infrastructure costs during the construction of a facility. However, any such interest costs must then be considered contributions in aid of construction, and not included in the Net Book Value of the facility for purposes of calculating Utility Basis costs in future years. B. Operations Costs. The costs of operating the assets assigned to a cost pool shall be included in the cost pool. The annual operations costs of a cost pool shall be the labor, materials, equipment and other direct costs required for the operation and maintenance of the facilities in that cost pool, together with any net profit or expense from the disposition of facilities in that pool. Operations costs shall include the cost of general and administrative overhead applied in a manner consistent with its application to facilities construction projects. 1. Existing Supply Operations Costs. The parties agree that an efficient way of handling operations costs for the Existing Supply Cost Pool shall be as follows: The Operations Cost base in the Existing Supply Cost Pool for the year 2001 shall be $17,780,262.00. In each succeeding year, the amount from the previous year shall be adjusted by the percentage change in the total cost of all the supply cost centers identified in Exhibit VI, except that the increase in treatment operations costs caused by the first full year start-up of the Cedar Treatment Plant at Lake Youngs in or around 2005 shall not be included in the percentage adjustment. Any increase in Cedar Treatment operations costs for the first full year of operation of the plant shall instead be added directly to the Operations Cost total from the prior year as adjusted by the index. For each year after the first full year of operation, increases in Cedar Treatment operations costs shall be included in the adjustment index. 2. Existing Transmission Operations Costs. The parties agree that an efficient way of handling operations costs for the Existing Transmission Cost Pool shall be as follows: the Operations Costs base in the Existing Transmission Cost Pool for the year 2001 shall be $4,531,931.00. In each succeeding year, the amount of these 11 50 -Year Declining Block Water Supply Agreement costs; from the previous year shall be adjusted by the percentage change in the total cost of all the transmission cost centers identified in Exhibit VI. 3. Cascade Sub - regional System Cost Pool Operating Costs. Cascade Sub - regional System Cost Pool Operating Costs shall include: (i) the actual costs of operating the facilities listed in Exhibit VII in proportion to the actual use of such facilities by Cascade; (ii) the electricity costs paid by Seattle after the effective date of this Agreement, in accordance with certain contracts effective on or before January 1, 2002, in Exhibit I, for pump stations owned and operated by Cascade Members and connected to the Tolt East Side Supply Line; and, (iii) any other costs approved by Management Agreement shall be Cascade Sub - regional System Cost Pool Operating Costs. C. Disposition Costs. The costs of disposing of assets within a cost pool shall be included in the cost pool. Net disposition costs shall be calculated as follows: 1. Disposition under the Utility Basis. The net book value of the facility, less any sales, salvage, or other revenues derived from the disposition of that facility. 8.7 The costs in cost pools shall be allocated to Cascade as follows: A. Allocation of Existing Supply Cost Pool. Cascade shall pay one hundred two percent (102 %) of the product of the Cascade Block and the costs in the Existing Supply Cost Pool divided by the Firm Yield. B. Allocation of New Supply Cost Pool. Cascade shall pay none of the costs in the New Supply Cost Pool. C. Allocation of Existing Transmission Cost Pool. Cascade shall pay one hundred two percent (102 %) of the product of the Cascade Block and the costs in the Existing Transmission Cost Pool divided by the Firm Yield. D. Allocation of New Transmission Cost Pool. Cascade shall pay none of the costs in the New Transmission Cost Pool. E. Allocation of the Cascade Sub - regional System Cost Pool. Cascade shall pay costs in the Cascade Sub - regional System Cost Pool as follows: 1. 100% of the costs associated with all facilities listed in Exhibit VILA. 2. A proportionate share of those facilities listed in Exhibit VII.B. based on flows of Cascade Members. Costs will be allocated based on Peak 7 Day flows through each segment. In the event that Peak 7 Day flow data is not available, Peak Month flows may be substituted. 8.8 Cascade shall pay the costs of penalties for exceeding the Cascade Block, as defined in Section 8.10 and any other costs requiring invoice by Seattle within 30 days of invoice by Seattle. 12 50 -Year Declining Block Water Supply Agreement • • • • 8.9 Cascade shall pay the annual costs allocated to Cascade in accordance with Section 8.7 as follows: A. Prospective Cost Estimate. Seattle may conduct a cost estimating study to revise estimates of the annual costs allocable to Cascade upon 120 days notice to Cascade. Cascade shall pay Seattle according to the estimated annual costs in such study, provided that not more than five years has elapsed from the time a study is conducted to the year in which the estimates from that study are used. Each study shall estimate the annual costs for not less than the five following years. B. Statement of Annual Costs. On or before December 1st of each year, Seattle shall notify Cascade of Cascade's annual cost for the next year. Such annual cost shall be the sum of the prospective cost estimate determined in accordance with Section 8.9A and the amount of excess or deficit identified in the most recent cost audit performed in accordance with Section 8.9D. On or before October 1st of each year Seattle shall provide Cascade with its best, non - binding estimate of the annual cost for the next year. C. Payment Distribution. On or before the last day of each month, Cascade shall pay Seattle that portion of Cascade's annual cost for that year, calculated pursuant to Section 8.9B, according to the following schedule: January 5% February 5% March 6% April 6% May 6% June 12% July 13% August 15% September 13% October 7% November 6% December 6% Overdue balances shall bear interest at the rate of 1% per month. In no event shall Cascade be required to pay Seattle a monthly payment during a year until at least 30 days after Seattle provides Cascade with a statement of annual costs for that year, and such payments shall not be considered overdue, until 30 days after such statement is provided to Cascade. D. Cost Audit. No later than August 1 of each year, Seattle shall provide a statement of actual costs allocated to each cost pool and other costs and revenues received during the prior year, which statement shall be examined by an external auditor in an "agreed - procedures" engagement. In addition, Cascade may have the statement audited by an external auditor of its choice, solely at Cascade's expense. This statement shall clearly identify the amount by which payments made by Cascade during the prior year were in excess of, or insufficient to meet the actual costs allocable to Cascade for the prior year. SO -Year Declining Block Water Supply Agreement 13 This surplus or deficit shall earn interest at the Rate of Return on Investment, and shall be reduced in accordance with Section 8.9B. No later than December 31 of the year following the termination of the contract, any remaining surplus or deficit balance shall be paid in cash by the party owing the balance to the party to whom the balance is owed. E. Payment from Gross Revenues. Cascade shall pay the charges out of its gross revenues. Cascade's payments to Seattle pursuant to this Agreement and payments otherwise required or provided for by this Agreement shall be maintenance and operation expenses of Cascade, payable prior to and superior to any charge or lien of any revenue bond issued by Cascade that are payable from the revenues of Cascade. Cascade shall establish rates and collect fees and charges for wholesale water service sufficient to pay for the maintenance and operation of its Water Supply System, including payments to Seattle, and the principal and interest on any and all Cascade revenue obligations that constitute a charge against the revenue of Cascade. F. Emergency Surcharge. In the event of a catastrophe or other extraordinary condition that requires emergency expenditures to maintain a sufficient water supply, Seattle may impose an emergency surcharge proportionately on all of its retail and wholesale customers, including Cascade in order to pay for such expenditures. Any such emergency surcharge shall be presented to Cascade prior to adoption by Seattle. Seattle shall consider Cascade's comments but shall nevertheless have the full authority to adopt the charge. 8.10 A. Charges will be imposed for exceeding the Cascade Average Annual, Peak Season or Peak Month Block limitations. These charges will be determined through the application of multipliers to the Cascade Volume Charge. The charge for exceeding the Cascade Block, Peak Month or Peak Season shall be calculated by (1) multiplying the Cascade Volume Charge by the appropriate factor in the following table, (2) multiplying by the amount of the exceedance (in MGD) and (3) multiplying by the actual number of days in the year, Peak Month or Peak Season, whichever is applicable. Category 0 to 1 MGD >1 to 3 MGD >3 MGD Annual Average Daily Demand 1.0 1.1 1.2 Peak Month Demand 1.5 9.1 16.7 Peak Season Demand 1.5 3.1 4.7 B. In the event that the Cascade Block, Peak Season or Peak Month limitations are exceeded in 2 or more years during any consecutive five -year period, the following charges apply: 1 Category 0 to 1 MGD >1 to 3 MGD >3 MGD Annual Average Daily Demand 1.0 1.2 1.2 Peak Month Demand 1.5 16.7 16.7 Peak Season Demand 1.5 4.7 4.7 14 50 -Year Declining Block Water Supply Agreement • • • • C. In the event of a charge for exceeding the block occurs in more than one category in either a single year or in multiple years during any consecutive five -year period, only the category that results in the highest charge will be assessed. 8.11 Except in the case of an emergency, the provisions of Section 8.10 shall be applied reciprocally to Seattle to calculate credits to Cascade, should Seattle fail to deliver the Cascade Block as required by this Agreement. ARTICLE IX - ADMINISTRATION 9.1 Seattle shall own and maintain appropriate metering devices to measure the water flowing from the Seattle Water System to each Point of Delivery. At Cascade's request and sole expense, Seattle will install and maintain equipment selected by Cascade and approved by Seattle to transmit signals to recording equipment of Cascade or its Members (located elsewhere) of the amount of water delivered, as measured by Seattle's meters. 9.2 As of the end of the calendar year immediately following the effective date of this Agreement and following a change in Cascade Membership through 2011, Seattle shall pro rate the balances in the Purveyor Balance Accounts among its contract Purveyors (1982 Water Purveyor Contract, Version A or B) and transfer to Cascade the pro rated balance of each Purveyor that is a Cascade Member, provided that such transfer shall occur only once for each Cascade Member. 9.3 Seattle shall keep full and complete books of accounts for the Seattle Water Supply System and Seattle's retail distribution system in compliance with current standards required by the State Auditor. Cascade, at its own expense, may at any time audit Seattle's book of accounts using the services of a public accounting firm and Seattle shall make the books and records of the Seattle Water System and Seattle's retail distribution system available to such auditors during reasonable business hours upon reasonable notice at the place where such records are normally kept. Seattle shall provide adequate facilities; i.e., room and workspace, so the audit can be performed. Seattle shall have reciprocal rights to audit Cascade books and accounts. 9.4 This Agreement shall be interpreted according to the laws of the State of Washington and the venue for any litigation between the Parties concerning its terms shall be in the Superior Court of King County at Seattle. The Parties shall be entitled to specific performance of the terms of this Agreement. 9.5 This Agreement shall inure to the benefit of and be binding upon successors of interest and assigns of the Parties. Neither this Agreement nor obligations to perform hereunder may be voluntarily assigned by either Party without the other Party's written consent, which shall not be unreasonably withheld; provided however, that a change in Cascade's corporate form; e.g., from interlocal organization to another form of organization authorized by Washington law, shall not be considered an assignment. Seattle may not convey the Seattle Water System or its component parts without providing for an assumption of this Agreement and the obligations contained herein by the conveyee. The Parties do not intend 50 -Year Declining Block Water Supply Agreement 15 to confer rights or benefits upon any third party. Only a writing executed by the Parties may modify ,this Agreement. 9.6 All notices relating to this Agreement shall be sent to the following addresses, certified mail, return receipt requested, unless the other Party is previously notified in writing of a change in recipient or address: To Seattle: Director Seattle Public Utilities 700 Fifth Avenue, 49th Fl. Seattle, WA 98104 To Cascade: General Manager Cascade Water Alliance 1309 114th Ave SE, Suite 300 Bellevue, WA 98004 9.7 If any provision of this Agreement or its application is determined by a court of law to be illegal, invalid, or void without rendering performance of this Agreement impossible or infeasible, then the Parties intend that the validity of the remaining provisions of this Agreement or their application shall not be affected and shall continue in full force and effect. 9.8 This Agreement is a contract for the purchase and sale of water and transmission services related to that water and no provision hereof shall be construed to make the Parties partners or joint ventures. Neither Party is the agent of the other nor shall either Party be held liable for the acts of the other on a theory of agency or any other representative capacity. 9.9 In the event of default of any provision of this Agreement, the non - defaulting Party shall issue written notice to the other Party setting forth the nature of the default. If the default is for a monetary payment due hereunder, the defaulting Party shall have thirty (30) days to cure the default. In the event of other defaults, the defaulting Party shall use its best efforts to cure the default within ninety (90) days. If such default cannot be reasonably cured within such ninety (90) day period, the defaulting party shall, upon written request prior to the expiration of the ninety (90) day period be granted an additional sixty (60) days to cure the default. 9.10 In the event of a default in payment by Cascade, Seattle shall have the right to compensation from the constituent Cascade Members up to the proportionate share of each Member's use of the Cascade Block which in the first 15 months of the Agreement shall be established by Exhibit III, and thereafter by the most recent annual report of Cascade Member's proportionate use of the Cascade Block, which proportionate use shall total 100 percent of the Cascade Block. Cascade's annual proportionate use report shall be completed and delivered to Seattle no later than March 31 of each year. Each Cascade Member must acknowledge and accept this individual, contingent liability to Seattle in writing at the time that Cascade enters into this Agreement. Those agencies that later join Cascade in accordance with Section 3.4A shall convey such written acknowledgment to Seattle within one month of joining Cascade. Should any Cascade Member required to do so fail to convey such written acknowledgement, Seattle shall have the unilateral right, upon written notice to Cascade, to reduce the Cascade Block by the amount allocated to such Cascade Member as set forth in Exhibit III, or by Cascade's most recent annual proportionate use report, until such written acknowledgement is provided to Seattle. 16 50 -Year Declining Block Water Supply Agreement • • • • 9.11 Upon entering into this Agreement, or upon later becoming a Cascade Member, each water utility that is listed in Exhibit III thereby relinquishes its then existing Seattle wholesale contract and the terms and conditions of that contract shall have no further force or effect as to those utilities that are or become Cascade Members. ARTICLE X - TECHNICAL COMMITTEE Technical Committees comprising Seattle staff and other affected parties will address day to day operational issues related to the Seattle Water System. Finance cost and rate issues will be addressed independently between the Director of Seattle Public Utilities and the General Manager of Cascade Water Alliance, or their respective designees as provided for in written notice to the other. It is recognized that daily operation of the Seattle Water System may require direct communication between Seattle staff and the staff of the Cascade Members. ARTICLE XI - DISPUTE RESOLUTION 11.1 Cascade and Seattle shall make good faith efforts to resolve by informal discussion any dispute arising under orr in connection with this Agreement. If at any time a Party to a dispute determines that such informal discussions will not result in a resolution, such Party may initiate non - binding mediation of any dispute arising under or in connection with this Agreement. Within ten (10) days of receiving written notice of initiation of non - binding mediation by one or both Parties, each Party shall designate in writing not more than five (5) candidates it proposes to act as a non - binding mediator. The Parties shall within an additional five (5) days select one of the mediators from either list to serve as mediator. Should the parties be unable to agree upon a mediator, a mediator shall be chosen from one of the two lists by the presiding judge of the King County Superior Court at Seattle. Upon selection of the mediator, the Parties shall use reasonable efforts to resolve the dispute within thirty (30) days with the assistance of the mediator. The cost of mediation shall be shared by Cascade and Seattle equally. 11.2 If mediation fails to resolve the dispute within thirty (30) days of selection of the mediator; the Parties may thereafter seek redress in court. 11.3 Pending the decision in any mediation or litigation process pursuant to this section, the Parties to such process shall continue to fulfill their respective duties under this Agreement. ARTICLE MI - EMERGENCY EVENTS 12.1 The Parties recognize that unforeseen and unavoidable events may occur which would require Seattle to act unilaterally for what it deems to be in the best interest of the general public served by the Seattle Water System; including water shortages resulting from drought circumstances and temporary reduction in water supply associated with turbidity events. Upon the occurrence of an unforeseen or unavoidable event, Seattle shall, to the extent practicable, treat its wholesale and retail customers equally and any curtailment of supply shall be imposed proportionately among those customers. This authority to act 50 -Year Declining Block Water Supply Agreement 17 unilaterally carries with it a unilateral responsibility of Seattle to restore, expeditiously, the Seattle Water System to its pre- emergency capability to supply the region. 12.2 Upon occurrence of an unforeseen or unavoidable event that adversely impacts the Cascade Water System, Cascade may request Seattle to temporarily modify or suspend operational or supply provisions of this Agreement and Seattle shall make reasonable efforts to grant such request. Cascade will act expeditiously to restore the Cascade Water System to its pre- emergency capability. 12.3 The time periods for Seattle's performance under any provisions of this Agreement shall be extended for a reasonable period of time during which Seattle's performance is prevented, in good faith, due to fire, flood, drought, turbidity events, earthquake, lockouts, strikes, embargoes, acts of God, war and civil disobedience. If this provision is invoked, Seattle agrees to immediately take all reasonable steps to alleviate, cure, minimize or avoid the cause preventing such performance. ARTICLE XIII EXHIBITS Exhibits I through' VII are attached hereto and are hereby incorporated by reference into the Agreement as if set forth in full herein. ARTICLE XIV - 'COMPLETE AGREEMENT This Agreement represents the entire agreement between the parties concerning the subject matter hereof. This Agreement may not be amended except as provided in Section 9.5. THE CITY OF SEATTLE, a municipal corporation By: DATE: DIRECTOR, SEATTLE PUBLIC UTJLITIES THE CASCADE WATER ALLIANCE, a nonprofit corporation BY: DATE: CHAIR, BOARD OF DIRECTORS 18 50 -Year Declining Block Water Supply Agreement • • EXHIBIT I Other Agreements A. List of documents, commitments, adjustments, reductions, agreements, and/or written approvals by Seattle regarding the supply, purchase and/or resale of water according to Section 4.4 of this Agreement: 1. Interties and associated agreements with other agencies as referenced in Section 4.4: Entity /location Meter Size Capacity Type of Service Comment Redmond/Union Hill Water Assoc. Water Service Agreement Redmond/Union Hill Water Assoc. Agreement for Water System Interties Redmond/Woodinville Water District Interlocal Agreement Redmond/Woodinville Water District Agreement for Water System Interties Redmond/Northeast Sammamish Water & Sewer District Agreement for Water System Interties Skyway / WD 25. Bellevue /Coal Creek 2. Other pertinent Agreements: a. List of electric contracts for pump stations owned and operated by Cascade Members and connected to the Tolt Eastside Supply Line according to Section 8.6.B.3 of this Agreement: 1. Between the City of Bellevue and the City of Seattle, effective August 1983, pursuant to Ordinance #111276 for SE 28th pumping station (50% / 50 %) and N.E. 8th pumping station (Bellevue 60% / Seattle 40 %) 2. Between the City of Redmond and the City of Kirkland 50 -Year Declining Block Water Supply Agreement 19 EXHIBIT II POINTS OF DELIVERY, MINIMUM HYDRAULIC GRADIENTS, AND MAXIMUM FLOW RATES OF WATER SUPPLIED METER SERVICE MINIMUM HYDRAULIC — GRADIENT_ FOR PLANNING PURPOSES AT STATION UPSTREAM OF METER (FEET NAVD -88 Datum) MAXIMUM FLOW RATE UP TO WHICH . _ THE MINIMUM HYDRAULIC GRADIENT APPLIES (gpm) (2) LOCATION. STATION NUMBER 0) PIPELINE SEGMENT NUMBER") SIZE OF METER (IN,) Bellevue ( *Redmond) 132ad Ave. SE & SE 26th Street 59 8 8 425 1,140 128th Ave. SE & Newport Way 56 8 8 435 460 Mercer Is. Pipeline & 108th Ave. SE 66 9 8 420 780 140th Ave. NE & 40th Street* 65 2 10 500 3,360 132°d Ave. NE & NE 14th St. 62 2 12 470 2,955 132"d Ave. NE & NE 24th Street 63 2 10 455 5,590 152"d Ave. NE & NE 8th Street 61 2 24 460 3,810 145th P1. SE & SE 28th Street 58 3 12 470 3,270 14509 SE Newport Way (2) 60 3 10 525 3,510 128th Ave SE & SE 56th ST (3) 47 8 8 440 Backup to Sta. 55 128th Ave SE & Newport Way (3) 55 8 6 435 230 120th Ave SE & SE 35th ST (3) 46 9 6 425 Backup to Sta. 124 I -90 & Lake Washington Boulevard (3) 50 9 6 425 Fire flow backup 124th Ave SE & SE 38 PL (3) 124 9 8 425 680 128th Ave SE & SE 70th ST (4) 52 8 12 445 1,020 20 50 -Year Declining Block Water Supply Agreement • • • • • METER SERVICE MINIMUM HYDRAULIC GRADIENT FOR PLANNING PURPOSES AT STATION UPSTREAM OF METER (FEET NAVD -88 Datum) MAXIMUM FLOW RATE UP TO WHICH THE MINIMUM HYDRAULIC GRADIENT APPLIES (gpm) LOCATION STATION NUMBER (1) PIPELINE SEGMENT NUMBER") SIZE OF METER (IN) Kirkland / Redmond 132nd Ave. NE & NE 113th Street 74 1 10 555 4,500 132nd Ave. NE & NE 85th Street 75 1 16 535 4,080 140th Ave. NE & NE 701° Street 72 2 12 520 1,240 Redmond 160th Ave NE & NE 104th Street 165 28 10 515 740 NE 172nd Street & Tolt Pipeline No. 2 TBD 28 TBD 515 planned new location Trilogy Parkway NE & NE 125 Street 164 26 10 610 240 Trilogy Parkway NE & NE 125 Street TBD 26 10 610 planned additional meter Skyway 84th Ave. S & S 134th Street 1 10 6 455 210 Beacon Ave S & S 124th Street 5 10 8 455 720 Cornell Ave S & S 112th Street 172 4 6 375 Backup service Tukwila 39th Ave S & S 112 Street 11 15 10 460 Backup service South Center Parkway & Tukwila Parkway 13 13 10 460 2,200 West Valley Hwy & S 162nd Street (emergency only) 14 13 8 460 Backup service Christensen Rd. & Baker Rd 15 13 8 460 480 531d Ave S & S 160th Street 16 13 6 460 20 21 50 -Year Declining Block Water Supply Agreement METER SERVICE MINIMUM HYDRAULIC GRADIENT FOR PLANNING PURPOSES AT STATION UPSTREAM OF METER (FEET NAVD -88 Datum) MAXIMUM FLOW RATE UP TO WHICH THE MINIMUM HYDRAULIC GRADIENT APPLIES (gpm) LOCATION STATION NUMBER (1) PIPELINE SEGMENT NUMBERS') SIZE OF METER (IN,) E Marginal Way & S 112th Street 168 15 12 445 810 51" Ave S & S Leo Street 169 12 8 455 60 W. Marginal Place & s 102"d St. 170 5 12 250 80 47th Ave S & S Victor Street 173 12 6 425 Backup service TOTAL: 42,190 Notes: (1) Station and Pipeline Segment Numbers pertain to the demand metering program. (2) Assumes existing 16 -inch sonic meter is replaced with a 10 -inch Protectus meter as planned. (3) These stations to be fully transferred from Coal Creek Water District to Bellevue. This station is owned by Coal Creek Water District. Assumes Coal Creek submeters 40 percent of total flow (average, peak) through this station to Bellevue. 22 50 -Year Declining Block Water Supply Agreement • • • • EXHIBIT III BLOCK ALLOCATIONS BY INDIVIDUAL WATER UTILITIES As Measured at the Meter (Net of 20 NOteS: a Based on water purchased from Seattle in 1998, which was the year in the period from 1994 to 2000 with the highest total system peak season factor. Billing data from May 22 -Sept 22, 1998, was used to compute the factors. b. Total average peaking factor for Bellevue, Kirkland and Redmond, since Redmond purchases Seattle water from Bellevue and Kirkland. c. Based on total from Bryn Mawr and Skyway, which merged in 2001. d. Total average peaking factor for W.D. 20, 45, 85, and 125, since these water districts operate as a consortium. e. System average f. Based on water purchased from Seattle in 1998, which was the year in the period from 1994 to 2000 with the highest total system peak month factor. Demand Metering data and Allocation Factor calculations for July 17- August 15, 1998, was used to compute the factors. g. Because of possible metering errors during the peak month for Bothell in 1998, peak month factor is based on August purchases from Seattle in 2000. 50 -Year Declining Block Water Supply Agreement 23 Annual Block Peak Season Factor Peak Season Block 1 Peak Month Factor Peak Month Block CWA 30.3 41.0 51.2 Existing Purveyors 30.28 41.02 51.23 Bellevue 17.67 1.35 a, b 23.85 1.70 f, b 30.04 Kirkland 4.40 1.35 a, b 5.94 1.70 f, b 7.48 Redmond 4.56 1.35 a, b 6.16 1.70 f, b 7.75 Skyway 0.48 1.12 a, c 0.54 1.32 f, c 0.63 Tukwila 3.17 1.43 a 4.53 1.68 f 5.33 New Purveyors 0.00 0.00 0.00 Covington 0.00 1.24 e 0.00 1.45 e 0.00 Issaquah 0.00 1.24 e 0.00 1.45 e 0.00 Sammamish Plateau 0.00 1.24 a 0.00 1.45 e 0.00 NON -CWA Existing Purveyors 42.38 54.86 68.30 Bothell 1.62 1.42 a 2.30 1.78 s 2.88 Cedar River 2.83 1.45 a 4.10 2.08 f 5.89 Coal Creek 0.94 1.42 a 1.33 1.90 f 1.79 Duvall 0.83 1.34 a 1.11 1.66 f 1.38 Edmonds 0.00 1.00 0.00 1.00 0.00 Highline 6.89 1.22 a 8.41 1.45 f 9.99 Mercer Island 2.15 1.44 a 3.10 1.86 f 4.00 Northshore 6.05 1.31 a 7.93 1.64 f 9.92 Olympic View 1.02 1.14 a 1.16 1.53 f 1.56 Shoreline 1.91 1.24 a 2.37 1.55 f 2.96 Soos Creek 4.62 1.17 a 5.41 1.27 f 5.87 Woodinville 5.57 1.42 a 7.91 1.84 f 10.25 WD 20 2.73 1.22 a, d 3.33 1.47 f. d 4.01 WD 45 0.30 1.22 a, d 0.37 1.47 f, d 0.44 WD 49 1.39 1.22 a 1.70 1.39 f 1.93 WD 85 0.11 1.22 a, d 0.13 1.47 f, d 0.16 WD 90 0.93 .1.27 a 1.18 1.67 f 1.55 WD 119 0.42 1.16 a 0.49 1.62 f 0.68 WD 125 2.07 1.22 a, d 2.53 1.47 f. d 3.04 NOteS: a Based on water purchased from Seattle in 1998, which was the year in the period from 1994 to 2000 with the highest total system peak season factor. Billing data from May 22 -Sept 22, 1998, was used to compute the factors. b. Total average peaking factor for Bellevue, Kirkland and Redmond, since Redmond purchases Seattle water from Bellevue and Kirkland. c. Based on total from Bryn Mawr and Skyway, which merged in 2001. d. Total average peaking factor for W.D. 20, 45, 85, and 125, since these water districts operate as a consortium. e. System average f. Based on water purchased from Seattle in 1998, which was the year in the period from 1994 to 2000 with the highest total system peak month factor. Demand Metering data and Allocation Factor calculations for July 17- August 15, 1998, was used to compute the factors. g. Because of possible metering errors during the peak month for Bothell in 1998, peak month factor is based on August purchases from Seattle in 2000. 50 -Year Declining Block Water Supply Agreement 23 EXHIBIT IV Seattle Supply System Facilities 1. Cedar Source • All roads, buildings, structures, water supply facilities, recreational and educational facilities, and fisheries enhancement and mitigation facilities located within or close to the Cedar River Hydrographic Watershed boundary as defined by Seattle land ownership, including the land itself, and any capitalized studies related to the above. Excepted are facilities solely owned by Seattle City Light for the purpose of power generation. Facilities shared by Seattle City Light and Seattle Public Utilities shall be part of the Seattle Supply System only to the extent of SPU share or responsibility. • All facilities located within the Lake Youngs Reservation as defined by Seattle ownership of the land except for conveyance facilities used to transport finished water during no n- emergency operation • All facilities located within the Lake Youngs Aqueduct, the Landsburg Tunnel, and the Lake Youngs Supply Lines right -of -way, including the right -of -way itself • Existing Morse Lake Floating Pump Stations 2. Tolt Source • All roads, buildings, structures, water supply facilities, recreational and educational facilities, and fisheries enhancement and mitigation facilities located within or close to the South Fork Tolt River Hydrographic Watershed boundary as defined by Seattle land ownership,' including the land itself, and any capitalized studies related to the above. Excepted are facilities solely owned by Seattle City Light for the purpose of power generation. Facilities shared by Seattle City Light and Seattle Public Utilities shall be part of the Seattle Supply System only to the extent of SPU share or responsibility. • Tolt Treatment Facility 3. Highline Wellfield • Riverton Wells, including all pumping and treatment equipment, original yard piping, to the connection to CRPL4, and the low flow piping to Riverton Reservoir • Boulevard Well, including all pumping and treatment equipment, and all piping up to the connection; to CRPL4 4. Other • • One Percent Conservation Program through December 31, 2003 • Commercial Incentive Program through December 31, 2003 • Commercial Toilet Retrofit Program through December 31, 2003 • Showerhead retrofit Program through December 31, 2003 • The Seattle Forecasting Model (SEAFM Model) • GIS Projects related to facilities identified herein as part of the Seattle Supply System 24 50 -Year Declining Block Water Supply Agreement • • • • • EXHIBIT V Seattle Transmission System Facilities 1. Pipelines • Tolt Pipeline No. 1 from the outlet of the Tolt Treatment Facility (TTF) to Lake Forest Reservoir, including any transfer and ancillary small diameter parallel pipes (Note: Includes TPLJ and TPL2 between the Reg. Basin and TTF in Supply!) • Tolt Pipeline No. 2 (where constructed), including any transfer and ancillary small diameter parallel pipes • Tolt Tieline • Tolt Eastside Supply Line (from TESS Junction to the intersection of SE 16th ST and 145th Place SE) • Tolt Eastside Line Extension (from the intersection of SE 16t ST and 145th Place SE to Eastside Reservoir) • The 540 head Pipeline from Maple Leaf Reservoir to Lake Forest Reservoir • Lake Youngs Bypass No. 4 from the outlet of each of the Cedar Treatment Facility clearwells to Control Works • Lake Youngs Bypass No. 5 from the outlet of each of the Cedar Treatment Facility clearwells to the Lake Youngs Tunnel • The Lake Youngs Tunnel (from the original lake outlet to Control Works) • The Maple Leaf Pipeline (from the intersection of 18th Avenue E. and E. Prospect Street to Maple Leaf Reservoir) • Cedar River Pipeline No. 1 from Control Works to the intersection of 18th Avenue E. and E. Prospect Street • Cedar River Pipeline No. 2 from Control Works to the intersection of 12th Avenue E. and E. Olive Street • Cedar River Pipeline No. 3 from Control Works to the intersection of 18th Avenue E. and E. Prospect Street • 30" intertie between Cedar River Pipelines 2 and 3 in east Olive Street • Cedar River Pipeline No. 4 from Control Works to the West Seattle Pipeline • Cedar Eastside Supply Line (from the Cedar Wye to the intersection of SE 16th St and 145th Place SE) • West Seattle Pipeline from Augusta Gatehouse to Cedar River Pipeline 4 • The 8th Avenue S. Pipeline between S. 146th Street and S. 160th Street • The Bow Lake Pipeline (between 8th Avenue S. and CRPL 4, and as relocated outside runways at Seatac Airport) • The Burien Feeder (in S. 146th Street between 8th Avenue S. and CRPL 4) • The Fairwood Line (between Fairwood Pump Station and Soos Reservoirs) • The 24 -inch discharge pipeline of Lake Youngs Pump Station up to Soos Reservoirs • The 12 -inch discharge pipeline of Lake Youngs Pump Station up to Soos Reservoirs • The 630 head pipeline between Lake Youngs Pump Station and the Cedar River WSD pump station at the eastern boundary of the Lake Youngs Reservation 50-Year Declining Block Water Supply Agreement 25 • • 2. Reservoirs, Tanks, and Standpipes, including overflow pipes, all valves, appurtenances, and disinfection facility located on the premises of each storage facility, unless otherwise noted • Lake Forest Reservoir • Eastside Reservoir • Riverton Reservoir • Maple Leaf Reservoir (excluding Roosevelt Way Pump Station and its suction and discharge piping, Maple Leaf Tank and 520 zone piping, except where solely serving the disinfection facility) • Soos Reservoirs 3. Pump Stations; Major Valve Structures, and other Facilities • TESS Junction Pump Station • Lake Hills Pump Station • Maplewood Pump Station • Maple Leaf Pump Station • Bothell Way Pump Station • Fairwood Pump Station • Lake Youngs Pump Station • The Control Works • Augusta Gatehouse • Eastgate Pump Station The facilities include the appurtenances to the transmission lines including but not limited to rights of way, line valves, system meters and remote automation devices. The facilities also include the existing meters, vaults and related equipment at all wholesale points of delivery to the extent that the costs of such meters, vaults and related equipment were unamortized as of December 31, 2003. New and replacement meter installations shall be treated consistent with Section 8.4B. 26 50 -Year Declining Block Water Supply Agreement • • • EXHIBIT VI Cost Centers Used for Operations Cost Indices The following costs centers or successor cost centers that capture the direct costs of operation of Existing Supply Facilities, Existing Transmission Facilities and the 1% Program shall be used as the indices for operations cost in the Existing Supply Cost Pool, Existing Transmission Cost Pool and for the 1% Program in the New Supply Cost Pool. Supply Program Project Project Name Communications N1203 Communications Activity Group Audit & Accounting N3303 Customer Audit Watershed Management N5401 Program Management Watershed Management N5401 Program Management Watershed Management N5401 Program Management Watershed Management N5401 Program Management Watershed Management N5401 Program Management Watershed Management N5401 Program Management Watershed Management N5401 Program Management Watershed Management N5403 Support Services Watershed Management N5403 Support Services Watershed Management N5403 Support Services Watershed Management N5404 Watershed Protection Watershed Management N5404 Watershed Protection Watershed Management N5404 Watershed Protection Watershed Management N5404 Watershed Protection Watershed Management N5405 Facility Management Watershed Management N5405 Facility Management Watershed Management N5405 Facility Management Watershed Management N5406 Watershed Road Maintenance Watershed Management N5406 Watershed Road Maintenance Watershed Management N5406 Watershed Road Maintenance Watershed Management N5406 Watershed Road Maintenance Watershed Management N5407 Watershed Operations Support Watershed Management N5407 Watershed Operations Support Watershed Management N5408 Water Quality & Hydrology Watershed Management N5408 Water Quality & Hydrology Watershed Management N5409 Public/Cultural Programs Watershed Management N5409 Public/Cultural Programs Watershed Management N5409 Public/Cultural Programs Watershed Management N5409 Public/Cultural Programs Watershed Management N5410 Wildlife & Fisheries Programs Watershed Management N5410 Wildlife & Fisheries Programs Watershed Management N5410 Wildlife & Fisheries Programs Watershed Management N5410 Wildlife & Fisheries Programs Watershed Management N5410 Wildlife & Fisheries Programs Watershed Management N5411 Resource Information Mgmt Watershed Management N5411 Resource Information Mgmt Watershed Management N5411 Resource Information Mgmt Watershed Management N54I2 Special Projects Watershed Management N5412 Special Projects - 27 - Activity N120304 Purveyor Relations N330303 Purveyor Audit N540194 Department Support N540195 General Expense N540196 General Management N540197 Training N540198 Safety N540199 Personnel N540289 Capital Purchase N540301 Modified Duty N540302 Procuring/Paying /Receiving N540303 Vehicle Equipment Downtime N540401 Hydrological Data Collection N540402 Fire Protection N540403 Inspection N540404 Boundaries N540501 WS Grounds N540502 WS Buildings N540503 WS Facilities & Roads N540601 Grade /Gravel/Ditching N540602 Bridges/Streams Culvert N540603 Roads/RowNegetation Cutting N540604 Tolt Roads & Streams N540701 Veh/Equipment Management N540702 Veh/Equip/Tool Repair N540801 Water Quality Monitoring N540802 Hydrological Monitoring N540901 Recreation Planning N540902 Management & Research N540903 Watershed Education N540904 Watershed Public Information N541001 Program Planning & Evaluation N541002 Interagency/Public Involvement N541003 Ecological Monitoring & Research N541004 Habitat & Species Inventory N541005 Habitat Enhancement/Restoration N541101 Program Plan/Evaluation N541102 Information Maintenance N541103 Information Services N541202 Silviculture N541205 Land Exchanges/Acquisitions Program Watershed Management Watershed Management Watershed Management Watershed Management Project N5415 N5415 N5415 N5415 Project Name Activity Cedar HCP Cedar HCP Cedar HCP Cedar HCP Watershed Management N5415 Cedar HCP Watershed Management Cedar HCP Watershed Management Cedar HCP Watershed Management Cedar HCP Watershed Management N5415 Cedar HCP Watershed Management N5415 Cedar HCP Watershed Management Cedar HCP Watershed Management Cedar HCP Watershed Management Cedar HCP Watershed Management Cedar HCP Watershed Management N5418 Cedar HCP Watershed Management Cedar HCP Watershed Management Cedar HCP Watershed Management Cedar HCP Watershed Management Cedar HCP Watershed Management N5418 Cedar HCP Watershed Management N5418 Cedar HCP Watershed Management N5418 Cedar HCP Watershed Management Water Quality & Supply Water Quality & Supply Water Quality & Supply Water Quality & Supply Water Quality & Supply Water Quality & Supply Water Quality & Supply N5415 N5415 N5415 N5416 N5416 N5417 N5418 N5418 N5418 N5418 N5418 N5418 N5503 N5503 N5503 N5503 N5503 N5503 N5503 Cedar HCP Water System Operations Water System Operations Water System Operations Water System Operations Water System Operations Water System Operations Water System Operations Water Quality & Supply N5503 Water System Operations Water Quality & Supply Water Quality & Supply Water Quality & Supply Water Quality & Supply Water Quality & Supply Water Quality & Supply Water Quality & Supply N5504 N5504 N5504 N5505 N5505 N5505 N5506• Water System Analysis Water System Analysis Water System Analysis Surface Water Trtmnt Rule Surface Water Trtmnt Rule Surface Water Trtmnt Rule Total Coliform Rule Compl. - 28 - N541501 ASSESS OF EXPAND FOREST STAND N541502 ASSESS EXPAND FOREST ATTRIBUTE N541503 AUGMENT FOREST HABITAT INV N541504 LONG -TERM FOREST HABITAT N541505 OLD - GROWTH CLASSIFICATION N541506 RIPARIAN RESTOR PROJECT MONIT N541507 UPOLAND FOREST RESTOR PROJ MONT N541515 GIS DATA COMPATIBILITY STUDY N541516 FOREST HABITAT MODELING N541517 SPECIE HABITAT RELATION MODEL N541601 CRHCP GIS SUPPORT N541603 CRHCP TECHNICAL SUPPORT N541701 ROAD MAINTENANCE N541801 EXPERIMENTAL STREAM MONITORING N541802 LONG -TERM STREAM MONITORING N541803 AQUATIC RESTORATION MONITORING N541804 BULL TROUT SURVEYS (ADULT) N541805 BULL TROUT SPAWNING SURVEY N541806 BULL TROUT FRY /JUVENILE SURVEY Riparian Zone Studies N541809 BULL TROUT STREAM DISTRIBUTION N541810 BULL TROUT REDD INUNDATION STU N541811 COMMON LOON MONITORING N550301 Water Management N550302 Water System Control N550303 Anadromous Fishery Mgmt N550304 SCADA Management N550305 Highline Well Field N550306 Morse Lake PS N550307- SAFETY PROCESS MGMT COMPLIANCE N550308 -EPA RISK MGMT COMPLIANCE N550401 Eng Analysis/Modeling N550402 Water Rights Mgmt N550403 DEMAND METERING N550501 Monitoring, Reporting & Admin N550502 Cholrination Facilities O&M N550503 Watershed Management N550601 Monitoring, Reporting & Admin • • • • • • Program Water Quality & Supply Water Quality & Supply Water Quality & Supply Water Quality & Supply. Water Quality & Supply Water Quality & Supply Water Quality & Supply Water Quality & Supply Water Quality & Supply Water Quality & Supply Water Quality & Supply Water Quality & Supply Water Quality & Supply• Water Quality & Supply Water Quality & Supply Water Quality & Supply Water Quality & Supply Water Quality & Supply Water Quality & Supply Water Quality & Supply Water Quality & Supply Water Quality & Supply Water Quality & Supply Water Quality & Supply Water Quality & Supply Water Quality & Supply Water Quality & Supply Resource Planning Project N5508 N5508 N5509 N5510 N5510 N5510 N5510 N5510 N5510 N5511 N5512 N5513 N5513 N5513 N5513 N5513 N5514 Project Name Lead & Copper Rule Compl. Lead & Copper Rule Compl. Fluoridation Program Other Reg Comp/Monitoring Other Reg Comp/Monitoring Other Reg Comp/Monitoring Other Reg Comp/Monitoring Other Reg Comp/Monitoring Other Reg Comp/Monitoring Special Projects Cedar HCP Cedar HCP Cedar HCP Cedar HCP Cedar HCP Cedar HCP WQ Monitoring N5515 HCP Fisheries N5515 HCP Fisheries N5515 N5515 N5515 N5515 HCP Fisheries HCP Fisheries HCP Fisheries HCP Fisheries N5515 HCP Fisheries N5515 HCP Fisheries. N5516 N5516 N5609 Tolt DBO Tolt DBO Water Resource & Habitat Issues - 29 - Activity N550801 Monitoring, Reporting & Admin N550802 Corrosion Trtmnt Facil O &M N550901 Fluoridation Program O &M N551001 Otr Reg/Operational Analysis N551002 Disinfection By- Product Rule N551003 Limnology N551005 WQ Lab N551006 DW Reg Dev & App Research N551007 Public Information/Notification N551104 LIMS & QA/QC N551201 INTERIM CHINOOK COHO N551301 HCP STREAMFLOW GAUGING N551302 SWITCHING CRITERIA STUDY N551303 STEELHEAD REDD MONITORING N551304 CHINOOK STUDIES Salmonid Studies N551403 DRINKING WATER QUALITY MONITOR N551501 FRY CONDITION AT RELEASE N551502 FRY MARKING & EVALUATION N551503 FRY TRAPPING & COUNTING N551504 FISH HEALTH N551505 SHORT -TERM FRY REARING N551506 LAKE WASHINGTON PLANKTON STUDY N551508 ADULT SURVIVAL DISTRIBUTION N551509 PHENOTYPIC & GENETIC STUDY N551601- CONTRACTOR PAYMENTS N551603- MANAGEMENT COSTS N560903 -ESA Transmission Program Project Project Name Activity Water Operation Water Operation Water Operation Water Operation Water Operation Water Operation Water Operation Water Operation Water Operation Water Operation Water Operation Water Operation Water Operation Water Operation Water Operation Water Operation Water Operation Water Operation Water Operation Water Operation Water Operation Water Operation Water Operation Water Operation Water Operation Water Operation Water Operation N6540 N6540 N6541 N6541 N6542 N6542 N6543 N6543 N6543 N6543 N6543 N6543 N6543 N6543 N6543 N6544 N6544 N6545 N6546 N6546 N6547 N6548 N6549 N6549 N6549 N6549 N6549 WT - Headwork/Storage WT - Headwork/Storage WT - Transmission Pipeline Maint WT - Transmission Pipeline Maint WT - Value Op/Maint - Water Tran WT - Value Op/Maint - Water Tran WT - Grounds/Roads/ROW WT - Grounds/Roads/ROW WT - Grounds/Roads/ROW WT - Grounds/Roads/ROW WT - Grounds/Roads/ROW WT - Grounds/Roads/ROW WT - Grounds/Roads/ROW WT - Grounds/Roads/ROW WT - Grounds/Roads/ROW WT - Facility Maintenance WT - Facility Maintenance WT - Castings WT - Customer Services WT - Customer Services WT - Damage by Others WT - Transmission Shops WT - General Expenses WT - General Expenses WT - General Expenses WT - General Expenses WT - General Expenses N654001 Program Maintenance N654002 Event Driven Repairs N654101 Program Maintenance N654102 Event Driven Repairs N654201 Program Maintenance N654202 Event Driven Repairs N654301 Grade /gravel roads - P N654302 Grade/gravel roads - E N654303 Bridges/culverts - P N654304 Bridges/culverts - E N654305 Fences/gates - P N654306 Fences/gates - E N654307 Mow ROW - P N654308 Mow ROW - E N654309 Mow Other N654401 Program Maintenance N654402 Event Driven Repairs N654501 Casting Adjustments N654601 Communications/Dispatch N654602 Locating/Marking N654701 P/L/ROW/Facility N654801 Shops/Fabrication N654905 Tools/small equipment N654906 Standy N654907 Truck Inventory N654908 Downtime - Job Related N654909- DISASTER -EMERG RESPONSE 1% Program Program Project Project Name Activity Community Services N5303 Resource Conservation - 30 - N530301 1% Conservation • • • • EXHIBIT VII Cascade Sub - regional System The facilities included in this Exhibit incorporate all appurtenances including but not limited to rights of way, line valves, system meters, and remote automation devices. A. Facilities used by Cascade: • The NE 8th Street Feeder, from the Cedar Eastside Supply Line to the Bellevue pump station near the intersection of 151St PL NE and NE 8th Street • The Bel -Red Road Feeder, from the Cedar Eastside Supply Line to the Bellevue Point of Delivery at the intersection of Bel -Red Road and 132nd Ave NE • The NE 24th Street Feeder, from the Cedar Eastside Supply Line to the Bellevue Point of Delivery near the intersection of NE 24th Street and 132nd Ave NE B. Other Sub - regional Transmission Facilities used in part by Cascade: • SEGMENT 1— Includes use by Bellevue, Coal Creek, Mercer Island, and Seattle and consists of: 1. The portion of the of the original Mercer Island Pipeline from the tee off the Cedar Eastside Supply Line in Factoria Boulevard SE to the west flange of the main line tee at the east end of the 16 -inch Mercer Slough Bridge Pipeline (30- inch). • SEGMENT 2 — Includes use by Bellevue, Mercer Island, and Seattle and consists of: 1. The portion of the of the original Mercer Island Pipeline from the west flange of the main line tee at the east end of the 16 -inch Mercer Slough Bridge Pipeline to the west flange of the 20 -inch valve west of the Enatai service to Bellevue (30- inch). 2. The entire 16 -inch Mercer Slough Bridge Pipeline (16- inch). • SEGMENT 3 — Includes use by Tukwila and Seattle and consists of: 1. The 20 -inch pipeline in West Marginal Way from the West Seattle Pipeline to South Director Street. Seattle may from time to time eliminate facilities from this list provided that it secures the written consent of Cascade in the event that Cascade is served by a tap or meter installation on the facility being eliminated. Seattle shall provide Cascade with 180 days prior written notice of any proposed change. - 31 - • APPENDIX N SEATTLE PUBLIC UTILITIES WATER SHORTAGE CONTINGENCY PLAN • SEATTLE PUBLIC UTILITIES WATER SHORTAGE CONTINGENCY PLAN 2000 SUPPLEMENT TO THE SEATTLE PUBLIC UTILITIES WATER SYSTEM PLAN • JULY, 2000 • • • SEATTLE PUBLIC UTILITIES 2000 WATER SHORTAGE CONTINGENCY PLAN TABLE OF CONTENTS Section 1 1 Introduction Objective of WSCP Integration into other emergency planning Relationship to wholesale customers' WSCPs 2 1 1 Section 2 Overview of Drought Management Strategy 3 Strategy 4 Regional drought experiences F Alternative water supplies 8 Section 3 Phased Curtailment Plan 9 Advisory Stage 11 Communication actions Operating actions 13 Voluntary Stage 14 Communication actions 15 Operating actions 17 Supply and demand management actions 17 Mandatory Stage 19 20 20 21 25 25 25 Communication Actions Operating Actions Supply and Demand Management Actions Emergency Curtailment Stage Communication Actions Operating Actions 11 1 • • • • 26 Supply and Demand Management Actions Section 4 Short Term Emergency Curtailment Plan Introduction 28 Background and experience with emergency demand reduction 28 Supply and demand management during emergencies 30 Attachments A. Estimated Savings from Possible Curtailment Measures B. Contact List C. Possible Voluntary Customer Curtailment Actions D. Enforcement Procedural Check List • SEATTLE PUBLIC UTILITIES 2000 WATER SHORTAGE CONTINGENCY PLAN SECTION I Introduction, This plan provides guidelines for Seattle Public Utilities (SPU). to manage water supply and demand in the event of a supply disruption. This plan addresses both progressive situations, such as those that are weather - related, and more drastic and immediate situations such as facility emergencies (e.g., a pipeline break). This document supplements the 2000 Water System Plan, and updates. the 1993 Water Shortage Contingency Plan (WSCP), incorporating interim revisions made in 1998. Objective of WSCP The objective of the WSCP is to establish actions and procedures for managing water supply and demands during water shortages. The plan would help SPU maintain essential public health and safety and minimize adverse impacts on economic activity, environmental resources and the region's lifestyle. Integration into other emergency planning This plan complements the "information section" of SPU's Emergency Response Plan. That plan is a supplement to the City of Seattle Disaster Readiness and Response Plan (City Disaster Plan). SPU's emergency plan defines decisionmaking authority in emergencies and creates specific emergency action plans for a number of systems, security, and management procedures, including information. As part of the City Disaster Plan, the Mayor would provide a unified incident command as a disaster response command team at the Emergency Operations Center. These team leaders will determine policies and strategies for handling major disasters. Individual departments, working on a common incident, will coordinate their field efforts through the incident command structure. Relationship to Wholesale Customers' WSCPs SPU provides water to approximately 175,000 homes, business and institutions in the direct service area, representing approximately 600,000 people. It provides water to an additional 680,000 people in much of King County and a small part of Snohomish County, through contracts with 25 wholesale customers, or purveyors. Water supply disruptions affects Seattle, Seattle's purveyors, and their respective retail customers. Each purveyor is responsible for developing a WSCP for its own planning purposes, as outlined in the purveyor contracts. The contracts include a provision that purveyors will assist and support emergency curtailment measures required to manage demand during an emergency or shortage. This document has been developed by SPU, in consultation with its wholesale customers and other participants, based on the premise that an effective demand management strategy must be regionally consistent. This is based on several considerations: • Public support and cooperation is likely to be higher if actions are equitable, i.e., all water users are experiencing the same service level and degree of hardship • A unified message and approach is easier to understand and distribute through the media, which is key in communicating information to the public • Consistency makes it easier for Seattle to forecast demand reductions, which is essential to effectively manage the system during a supply disruption 2 SECTION 2 OVERVIEW OF DROUGHT MANAGEMENT STRATEGY While water supply disruptions can occur for a variety of reasons, a weather - related water shortage - generally referred to as a "drought" - is one category of particular importance to this utility for reasons described below. Droughts are naturally occurring but unpredictable weather events of varying frequency, duration and severity. In the region served by the Seattle water system, available data indicate a very low probability of a multi -year drought, but the region has experienced short term droughts. This region is generally faced with a.relatively dry summer period. In Seattle, only about 5 of our 38 - 40 inches of annual precipitation fall during the summer months. The Seattle water system operates with an annual refill and drawdown cycle of its water supply storage reservoirs. Highly unusual weather events affect this cycle and can cause potential shortages. This can manifest in one or more of the following ways: • Less than normal winter snowpack, which would limit the volume of instream flows available from snowmelt in the spring to fill Seattle's storage reservoirs for peak season demands • Unusually warm spring weather bringing with it early melting of the snowpack, resulting in early drawdown of the mountain reservoirs • Unusually warm and dry summer weather which can significantly increase peak season demands, and create low flow conditions in streams tributary to the mainstem rivers • A delayed return of the fall rains, or a dry winter, which can delay the fall reservoir refill cycle (which replenishes the storage reservoirs after the peak season), creating extended low flow conditions in the streams and rivers The specific cause of any supply disruption will affect the utility's response and its timing. One critical consideration in managing water supply and demand when there is a potential water shortage is stream flow levels. In addition to meeting the needs of SPU's retail and wholesale customers, the Cedar and South Fork Tolt rivers are managed to meet instream flow needs for fish and wildlife habitat. Water is released from the City's mountain storage reservoirs to augment and provide adequate instream flows for salmon and other species downstream of the City's dams, particularly during periods 'of weather - induced low streamflow conditions and drought. Additionally, the Cedar River provides approximately half of the inflow tributary to Lake Washington on an annual average basis. The U.S. Army Corps of Engineers manages Lake Washington lake - levels as part of its Lake Washington Ship Canal Project which connects Lake Washington to the saltwater of Puget Sound. Their management objectives include providing water flows at the Hiram Chittenden Locks for navigation, fish passage, and control of the salt water intrusion caused by operation of the Locks. Strategy Seattle's strategy for dealing with the hydrologic uncertainty associated with drought management involves several components: • Information • Forecasting • Communication • Dynamic operating rules Information - To deal with hydrologic uncertainty in real -time and in longer term planning horizons, Seattle's water management team uses a number' of available informational and data gathering sources. Seattle contracts with the U.S. Geological Survey (USGS) to provide streamflow monitoring and data collection services. Strategic placement of USGS stream gauging stations provides real -time information for understanding the hydrologic state of the water supply and river systems. Seattle also contracts with the Natural Resources Conservation Service (NRCS) to provide 'snow monitoring and data collection services. Seattle's water supply relies heavily on the water stored as snow in its mountain watersheds. Quantifying the snow conditions in our watersheds is an important activity during the winter and spring months as we make reservoir management and downstream flow release decisions. Forecasting - Through the National Oceanic and Atmospheric Administration (NOAA), Seattle regularly monitors daily weather forecasts (National Weather Service Seattle Forecasting Office), mid -range weather forecasts (Climate Prediction Center), 30- and 90 -day and multi- season climate outlooks (Climate Prediction Center), and daily hydrometerological forecasts (Northwest River Forecast Center in Portland, Oregon). The interneti has greatly improved access to these sources of information. For example, NOAA's El Nino Theme Page on the internet provides a wealth of timely information on current and forecasted El Nino and La Nina 4 • • • conditions with enough lead time for water resource managers to prepare for such events. Seattle uses a number of analytical tools for forecasting hydrologic conditions as they relate to water supply and fisheries including: • streamflow forecasts prepared by the USGS and NRCS; • weather, climate and river forecasts from NOAA; • a reservoir management and streamflow forecasting computer model known as the Seattle Forecast Model, or SEAFM. This model is regularly updated with hourly meteorological and hydrological data, and simulates the current state of the watershed (including snowpack, soil moisture, aquifer storage, and streamflows) and water supply system. The model is used to analyze and assess various future reservoir operating scenarios, both in real time and in near and long term operational planning, based on probabilistic analysis of over 65 years of historic weather; and • Seattle Water Allocation Network (SWAN) model and the Conjunctive Use Evaluation (CUE) model, which are weekly time step simulation models used for calculating and evaluating the firm yield and . reliability of Seattle's water supply system and potential future water supply projects. While not forecast tools, per se, these models provide valuable insight into the hydrologic record. Communication - Seattle's water management team works closely with members of other local, state, federal and tribal resource agencies including Seattle City Light, City of Renton, King County, Washington State Department of Ecology, Washington State Department of Fish and Wildlife, U.S. Army Corps of Engineers, U.S. Fish and Wildlife Service, National Marine Fisheries Services, Muckleshoot Indian Tribe and Tulalip Tribes. Agency conference calls are typically scheduled once a month to discuss hydrologic conditions, facility and system operations (water supply, hydropower, and Ship Canal), fish biology and ecology, and other subjects as may be beneficial in implementing instream flow plans for the lower Cedar and the South Fork Tolt rivers. When needed, such as during a drought, these conference calls occur more frequently. Seattle has ongoing formal and informal agreements with resource agencies, Indian Tribes and the U.S. Army Corps of Engineers in how it manages the stream flow levels. These formal and informal agreements affect Seattle's ability to manage the water supply when there is a _potential shortage as the needs of customers must be balanced with the needs of fish. Both the Tolt FERC Settlement Agreement and the Instream Flow Agreement for the Cedar River include management provisions and requirements for situations in which normal instream flows cannot be maintained. Dynamic Operating Rules - Operational flexibility is key, with operating plans changing as conditions and forecasts change. Dynamic reservoir rule curves must be used since these can better reflect watershed conditions and allow risk and uncertainty to be managed. A key assumption is that abundance, shortage and risk must be shared among all beneficiaries of the water resource. For example, critical minimum instream flow levels at locations specified in the Tolt and Cedar agreements references above are resorted to only after human water consumption is curtailed. All of the tools, information sources and communications outlined above, are needed for coordinating and decision making related to real -time operations. Regional Drought Experiences The Seattle water system has experienced two very different types of droughts in recent history. In 1987, storage reservoirs were at normal levels on June 1, but the summer weather was unusually warm and dry. Higher than normal outdoor water accelerated the drawdown of the storage reservoirs. To reduce demand, in early August lawn watering was restricted to no more than once every three days and customers were urged to voluntarily curtail other water uses. These actions reduced demand by approximately 10 percent. In early fall, an emergency pumping station was installed at the Chester Morse Lake reservoir to pump "dead storage" should the reservoir level fall below the lake's natural outlet. Throughout the fall, precipitation continued below normal; the water supply system was managed and adjusted to obtain the maximum supply available (e.g., relying on Lake Youngs more than normal). In November and January 1988, the Chester Morse reservoir was low enough to require pumping and it wasn't until February 1988 that precipitation returned to normal and began refilling the storage reservoirs. In 1992, the system experienced a very different type of drought. 6 • • • Because the winter was unusually warm, snowpack and flows into the storage reservoirs were at record low levels. In late February, it was evident that there was insufficient snowpack to fill the storage reservoirs and that the likelihood of recovery by June 1 due to rainfall was minimal. A number of measures were taken to maximize available supply (e.g., reducing system flushing, adjusting stream flow levels, etc) and to reduce demand. In May, a number of mandatory curtailment actions were implemented in the Seattle service area, including a ban on lawn watering. This resulted in an average consumption reduction of 25 to 30 percent below normal throughout the summer. Tribes, state resource agencies and the Army Corps of Engineers played a significant role in cooperating to maximize available water supply. In addition, other measures were taken to increase available supply including initiating an intertie with Renton and accelerating the construction of a second pump plant for the Chester Morse Reservoir. The mandatory restrictions were rescinded in September as supply levels returned to normal with the onset of fall rains. In 1997 -98, one of the most significant El Nino weather events on record concerned SPU and other water providers about potential effects of this winter- warming phenomenon on snowpack and consequently on water supply. The department revisited the WSCP to ensure readiness in case of significant El Nino effects and took initial steps to prepare. This resulted in several interim changes being made to the WSCP, reflected in this document. These experiences are reflected in this Water Shortage Contingency Plan, articulated in the following principles: • Given clear, timely and specific information on supply conditions and the necessary actions to forestall worsening conditions, customers prefer the opportunity to meet targeted demand reduction levels through voluntary compliance measures. The decision to move to mandatory restrictions is more acceptable if the voluntary approach has been tried first but has not resulted in enough demand reduction to ensure public health, safety and adequate streamflows through the projected duration of the shortage; • Each drought or other shortage situation has enough unique characteristics that a plan cannot specifically define all the scenarios and specific supply and demand management actions. The usefulness s • of a Water Shortage Contingency Plan lies in planning the range of supply and demand management actions in advance of the situation, and in defining the communication mechanisms by which decisions will be made during the event; • Given the effective long term conservation program operated by SPU, it is important to distinguish between the short term curtailment' measures necessitated by a water supply disruption, and the conservation measures SPU promotes to its customers. Conservation focuses on efficiencies which do not affect the quality of life, whereas curtailment measures can involve short term actions which could impact it; and • It is essential to closely monitor water quality during a supply disruption and particularly during a warm weather drought. Water quality issues must be considered when supply management decisions are made. Alternative Water Supplies Depending on the nature and timing of a potential water shortage, alternative water supplies may be useful to supplement existing supplies. Interties - Since water supply disruptions will not affect all water suppliers to the same extent, it is sometimes feasible for Seattle and its purveyors to obtain water from other providers through interties, where they exist. Chester Morse Lake "Dead Storage" - Seattle's primary storage reservoir has a natural, gravity fed outlet. When inflows are low the reservoir can fall below the natural rim but still contain a substantial amount of high quality water. In 1992, Seattle Water installed emergency pump stations to pump the water over the natural outlet and into the river, thereby augmenting both instream flows and water availability for customer use had the drought continued into fall or beyond. In granting the water right for this use the Department of Ecology conditioned it with the following language: "...Use of the temporary pumping plants is allowed only during water shortages due to unusual or extreme conditions and after the Seattle Water Department [ed. note: Seattle Public Utilities] is implementing elements of its Water Shortage Contingency Plan ..." 8 • • • Reclaimed water - Using highly treated effluent instead of potable water for irrigation, street washing, construction purposes, etc. can reduce demand for potable water and lessen the impact of the shortage on the community. While high quality reclaimed water can be produced by King County at one or more of its wastewater treatment plants, issues include obtaining permits to use this water, and obtaining and distributing adequate amounts to decrease potable water demands. These issues - availability, permitting and distribution - are likely to change in future years, and should be revisited in the event of any future water shortage. SECTION 3 PHASED CURTAILMENT PLAN This plan provides four stages of response based of increasing severity, as progressively more serious conditions warrant. This type of response would be appropriate to a summer drought or other long range disruption. The four stages include a variety of communications, internal operations, and supply and demand management strategies as appropriate, and are characterized as follows: • Advisory Stage -The public is informed as early as meaningful data are available that a possible shortage may occur. • Voluntary Stage - If supply conditions worsen, the plan moves to the "Voluntary" stage which relies on voluntary cooperation and support of customers to meet target consumption goals. During this stage, specific voluntary actions are suggested for both residential and commercial customers. • Mandatory Stage - If the Voluntary Stage does not result in the reduction needed, the Mandatory Stage prohibits or limits certain actions. This stage would be accompanied by an enforcement plan which could include fines for repeated violation. • Emergency Curtailment - This addresses the most severe need for demand reduction and could include a combination of mandatory measures and rate surcharges. This could be used as the last stage of a progressive situation, such as a drought of increasing severity, or to address an immediate crisis, such as a facility failure. Recommendations about implementing the WSCP would be made to the Director by the SPU shortage advisory group, formed at the direction of the Director. This group, involving key department staff and purveyor representatives, would consider the following factors in making its recommendations: • total supply availability, including groundwater, interties, and modified instream flow releases • the rate of decline in total reservoir storage compared with the normal operating rule curve • short and long term weather forecasts by the NOAA National Weather Service • computer modeling of stream flow, weather and demand assumption 10 • • • data • the trends and forecasts of the system's daily water demands • the estimated margin of safety provided by the demand reduction, compared with the level of risk assumed if no action is taken • the value of lost water sales revenue compared with the increased margin of reliability • consultation with elected officials, purveyor representatives, state resource agencies, the Army Corps of Engineers and Tribes • the length of time between stage changes (abrupt starts and stops are to be avoided), and required time lags to shift administrative gears and institute program (printing, purchasing, etc.) • current events • customer response ADVISORY STAGE Objectives • To prepare the Department, City, relevant agencies and water users for potential water shortage thereby allowing all parties adequate planning and coordination time • To undertake supply management actions that forestall or minimize the need later for more stringent demand or supply management actions Triggers As presented earlier, there are a variety of weather and other conditions that may cause concern about water availability and a potential water shortage. Two of the primary conditions that would trigger an "Advisory" are as follows: 1. Total reservoir storage is not projected to be at standard operating capacity as of June 1, due to exceptionally low snow pack, precipitation and /or lack of carryover storage from previous year; 2. Total reservoir storage and predicted inflows are significantly below . . historical "normals" for the current time of year, and supply modeling indicates that expected demands may not be met if this trend continues or worsens. The Advisory is withdrawn when projected reservoir storage trends follow the normal water supply conditions. . Public Message "Potential exists for lower than normal supply; conditions may return to normal or, later on, we may need to reduce consumption. We'll keep you informed." Advisory Stage Actions Communication Actions Brief elected officials 12 • Director appoints shortage advisory group to meet as often as appropriate to evaluate conditions, determine actions and make assignments. Included are: • SPU Director • SPU Director of Strategic Policy • SPU Engineering Services Director • SPU Water Resources Manager • SPU Resource Conservation Manager • SPU Director of Water Quality and Supply • One purveyor representative and alternate, . appointed by Purveyor Committee Chair Intensify ongoing media education effort about the water system, particularly relationship of weather patterns to supply and demand; provide up to date data and implications for water use, if known Initiate report to purveyors requesting that they trigger their WSCPs Establish purveyor "hotline ", a frequently updated recording providing latest information and supply and demand data Consult with other major customer groups, e.g., parks departments, landscape industry, forming a committee if needed, to assist the shortage advisory group to define message and provide feedback on utility actions Initiate status report to entities with special interests, e.g., large water users especially landscape and nursery industry, parks; major water using industries Prepare and distribute public information materials explaining the Water Shortage Contingency Plan stages and range of actions; prepare "Questions and Answers" for all customer groups, including those who may be planning new landscaping projects Intensify coordination with other regional water suppliers to learn what conditions they are projecting for their systems Intensify communication and coordination with Seattle City Light, . state and federal resource agencies and tribes about water supply conditions and projections Evaluate ability, resources, plans to move into Voluntary stage; as 13 appropriate, begin preparatory measures SPIT Internal Operating Actions Intensify data collection actions (stream flows, snow pack conditions) and monitoring weather forecasts Intensify SPU's computer modeling runs of projected supply, storage and demand scenarios Intensify supply side management techniques to optimize existing sources Assess current water main flushing and reservoir cleaning activities to determine whether they should be accelerated to be completed prior to the peak season or reduced to conserve supply; communicate strategy to purveyors Assess water quality in reservoirs and distribution system to target for correction areas that may be predicted to experience severe degradation with reduced consumption Initiate planning and preparation for Voluntary Stage actions, including an assessment of potential staffing impacts, training needs, and communications strategies including use of web -based information 14 • • VOLUNTARY STAGE Objectives To maintain or reduce demand to meet target consumption levels by customer voluntary actions To forestall or minimize need later for more stringent demand or supply management actions To minimize the disruption to customers' lives and businesses while meeting target consumption goals To maintain the highest water quality standards throughout the shortage Triggers The "Voluntary Stage" is implemented when one or both of the following factors applies: • Supply conditions identified in the Advisory Stage have not improved • Demand levels indicate the need for a more systematic response to manage the situation The Seattle water distribution system is designed to carry a large capacity of water during summer peak months. With significantly lowered demand during a drought, water is not moving through the system at the "design" rate. The slower moving water, coupled with higher summer temperatures, means that there is an increased likelihood that water quality problems may become an issue. Consideration will be given to potential water quality issues in defining the supply and demand management strategies. Public Message "We are relying on support and cooperation of all water users to stretch the available water supply. Demand needs to be reduced by %. Customers are responsible for determining how they will meet that goal. Water waste is not allowed. If everyone cooperates, we may avoid imposing more stringent restrictions. In addition to meeting essential water needs of customers, meeting the needs of fish habitat and other environmental concerns is a priority." • • Voluntary Stage Actions The shortage advisory group will meet frequently to re- evaluate the situation based on current and projected supply conditions and the season, and determine the appropriate actions and strategies. The group will determine target consumption goals to be achieved on a voluntary basis which may be revised as necessary. (See attachment A.) Based on the consumption goal, some or all of the following actions will be taken; those actions that are asterisked ( *) will be considered initially for implementation if demand reductions more than 10 to 15 percent below normal are necessitated, or later if voluntary measures implemented fail to deliver targeted savings. Communication Actions Establish systematic communications with elected officials; Director and shortage advisory group communicates the nature and scope of voluntary measures and strategy to Mayor and Council, purveyors, tribes and resource agencies Shortage advisory group evaluates whether targeted consumption levels and supply conditions warrant a rate surcharge to reinforce voluntary actions and/or to recover revenue losses *; the Director makes recommendation to Mayor and Council Prepare 'appropriate legislation regarding emergency surcharges, if required Consult with customer groups to, throughout the shortage, help develop public information messages and materials and to obtain feedback on utility actions Initiate major public information, media and advertising campaign: • In daily newspapers, publish and promote consumption graph that displays the goal and previous 24 hour consumption; • Promote consumption goals for typical households, and a percentage reduction goal for commercial customers (Attachment C contains a list of recommended actions for customers to take to reduce consumption) • Develop and implement a marketing plan, including paid advertising, to keep customers informed about supply and demand conditions; reinforces desired customer actions;' recommends customer actions to 16 • reduce demand sufficiently; and, depending on conditions, reminds customers that if goals are not achieved, restrictions may be necessary • Identify what potential next steps will be to reduce demand including timing, what type of restrictions and /or surcharges will be imposed • Establish routine timing for press releases (e.g., every Monday morning) that provides current status and outlook; present information in standardized format that becomes familiar to media and public • Include water quality information in public information so that if flushing is necessary, the public understands that it is essential for water quality maintenance • Publicize the water supply conditions web page, which is updated regularly. Ensure the information provided covers the needs of all key interests: the public, news media and purveyors Meet with landscape industry representatives to inform them of current and projected conditions; develop partnership programs and informational materials on the shortage, consumption goals, etc. for distribution by industry and utilities Continue and intensify coordination and communication with state and federal resource agencies and tribes about supply conditions, demand management actions and stream flow levels Identify and promote reduced evapotranspiration (ET) rate for large irrigators In collaboration with Health Department officials, develop informational materials for customers on gray water use Establish and promote "hotlines" for customers to obtain additional conservation information Contact largest customers to request percentage reduction. Contact City and other public agencies to inform them of conditions and request their cooperation Prepare list of commercial car wash facilities that recycle water Establish regular communication mechanism to keep Department employees, especially utility account representatives and water service consultants, up to date on goals; conditions, and actions • • Print generic postcards to acknowledge receipt of customer correspondence regarding the shortage and to inform customer that specific response is being prepared Initiate remaining planning and preparation for Mandatory Stage SPU Internal Operating Actions Continue actions listed in the Advisory Stage Eliminate all operating system water uses determined not to be essential to maintain water quality such as pipeline flushing, reservoir overflows; complete cleaning of any in -town reservoirs known to be vulnerable to warm weather taste and odor concerns Increase water quality monitoring actions Communicate flushing policy to purveyors; eliminate demand metering charges* Implement staffing reassignments as needed, and plan staffing changes which may be needed for the Mandatory Stage, including staff to enforce mandatory restrictions Supply and Demand Management Actions Request the Corps of Engineers to reduce flow requirements and modify use of the Chittenden Locks* Issue a request that nonrecirculating fountains be turned off* Restrict hydrant permits to essential purposes* Activate any existing interties to increase supply availability* Request that Fire Department limit training exercises that use water Request that City and County agencies eliminate washing fleet vehicles unless recyling car washes are used Request that hosing sidewalks, driveways, parking lots, etc. be limited to situations that require it for public health and safety 18 • • Have SPU field personnel "tag" observed obvious water waste such as hoses without shutoff nozzles, gutter flooding, etc. with notice that informs customer about the supply conditions and need to conserve Evaluate ability to accelerate or enhance or expand long term conservation programs; implement as appropriate Request that purveyors who have alternative sources use them* Ready the pumping plants on Chester Morse Lake* In coordination with state and federal resource agencies and tribes, review stream flow levels MANDATORY STAGE Objectives To achieve targeted consumption reduction goals by restricting defined water uses To ensure that adequate water supply will be available during the duration of the situation to protect public health and safety and to balance the need for stream flows for fish habitat To minimize the disruption to customers' lives and businesses while meeting target consumption goals To maintain the highest water quality standards throughout the shortage To promote equity amongst customers by establishing clear restrictions that affect all customers Triggers The Director would approve progression to this stage, as recommended by the shortage advisory group, if goals established in the "Voluntary Stage" have not been met, and additional action is needed. The specific restrictions imposed during the mandatory stage would be determined based on the season of the year, targeted demand levels, and other considerations previously mentioned. Variations of the specific restrictions may be applied based on water supply conditions. For example, lawn watering restrictions may simply consist of time of day restrictions; or, if conditions warrant, lawn watering could be restricted to certain times of day and allowed only once a week. Public Message "It is necessary to impose mandatory restrictions to reduce demand because the voluntary approach has not resulted in the necessary savings. We are continuing to rely on the support and cooperation of the public to comply with these restrictions but need the certainty and predictability of restricting certain water uses in order to ensure that throughout the duration of this shortage an adequate supply of water is maintained for public health and safety." 20 • • Mandatory Stage Actions Communication Actions The shortage advisory group recommends nature, scope and timing of restrictions to Director. The Director of Water Quality and Supply determines that water supply and demand management strategies will not result in unacceptable water quality degradation The Director recommends to the Mayor and City Council moving to Mandatory Stage and other appropriate actions The Council adopts legislation on mandatory restrictions and, if needed and not already in place, emergency surcharges The public is informed about the nature and scope of the mandatory restrictions through a press conference, paid advertising and other means, including direct mail. The enforcement mechanisms, rate surcharges, target consumption goals, projections for how long restrictions will be in place and the reasons for imposing restrictions will also be identified, as will the possible consequences if goals are not met Any exemptions from restrictions will be clearly identified In communicating mandatory restrictions to the public, a clear distinction will be made between lawn /turf watering and watering gardens and ornamental plantings. The type and amount of watering allowed will be clearly defined A "Customer Hotline" will be set up to report violations of restrictions Customers who irrigate with private wells will be urged to install signs to let the public know that private well water is being used " Communication actions from the Advisory and Voluntary stages will be continued and enhanced Plans will be made to move into the fourth stage - Emergency Curtailment - and to begin preparatory measures as appropriate SPU Internal Operating Actions 21 • • Continue appropriate actions from previous stages Finalize and implement procedures for exemptions from restrictions and /or emergency surcharges Finalize and implement enforcement procedures for restrictions including highly visible "Water Watchers ". (See Attachment D) Increase water quality monitoring actions at storage and in -town reservoirs Supply and Demand Management Actions Overall supply conditions will be considered by the shortage advisory group in evaluating which restrictions to impose. If supply conditions continue to deteriorate, before moving to the Emergency Curtailinent Stage, and if irrigation is still occurring, lawn watering will be banned. Newly installed lawns may be exempted from this ban if the procedures listed below are followed. POSSIBLE RESTRICITONS Watering Restrictions The following are several possible approaches to watering restrictions. The nature of the restrictions used will depend on the situation, and may change as severity of the situation changes. • Prohibit all watering during the warmest hours of the day, for example between 10:00 a.m. and 7:00 p.m. • Limit all watering to a specific number of days per week or per month. This choice will depend on target consumption goals, the time of year and the extent to which watering is occurring, and how much demands have already decreased. For example, if demand has already been reduced by 15% through other measures, during July and August limiting turf watering to two days a week on a region -wide basis would further reduce average daily demand by approximately 15 million gallons. Limiting lawn or turf watering to one day a week will yield an additional average daily reduction of 15 to 20 million gallons. (These figures are based on experience during 1992.) • Ban lawn watering (see exemptions below), with other watering prohibited during the warmest hours of the day, for example, 22 • • between 10:00 a.m and 7:00 p.m. Other Restrictions Prohibit use of any ornamental fountain using drinking water for operation or make -up Prohibit car washing except at commercial car wash facilities that recycle water Rescind hydrant permits Prohibit washing of sidewalks, streets, decks or driveways except as necessary for public health and safety Limit pressure - washing of buildings to situations that require it as part of scheduled building rehabilitation project _(e.g., painting) Prohibit water waste including untended hoses without shut -off nozzles, obvious leaks and water running to waste such as gutter flooding and sprinklers /irrigation whose spray pattern unnecessarily and significantly hits paved areas Exemptions from Water Use Restrictions Lawn watering ban exemption- Newly installed lawns may be exempted from a ban if the procedures listed below are followed. Those wishing to use this exemption would need to contact their water utility as directed in advance of the exemption being granted, providing their name, address, phone number, size of lawn and type of watering system. This information would allow the utility" to quantify the amount of water used under this exemption and to spot check for compliance. The procedures relating to the exemption and the requirements of the exemption would be clearly outlined at the time of the ban. The following procedures are subject to change : • Each applicant would be mailed a packet stating the requirements • Once the requirements are met, an authorization packet would be mailed to the customer including a sign to be posted indicating that utility requirements are being complied with. • New lawns must be properly installed, meaning that two inches of organic soil amendment, such as composted yard waste, is cultivated into the top six inches of existing soil, at a minimum. • New lawns must be watered according to guidelines to be provided in the packet mentioned above. 23 For purposes of this exemption, "new lawn" refers to a lawn newly installed during the current year only. Overseeded or otherwise renovated lawns would not be exempt. In the event that the shortage continues to worsen and the Emergency Curtailment Stage is invoked, this exemption would be revoked. It would also be revoked on a case by case basis if the rules stated above are not followed, or in the case of a water system emergency. Monitoring and enforcement are at the discretion of the utility. The existence of an exemption to a watering ban would be announced early in the response process, for example when the Advisory Stage is invoked. Automatic Irrigation System Exemption - Users of automatic irrigation systems may be exempt from certain mandatory watering restrictions if proper procedures are followed— but not from a total watering ban. This approach allows an alternate path to achieving savings due to the precision with which such systems can be operated, but is not intended to be a loophole to avoid the need to curtail use. For example, if only 30 minutes of lawn watering is allowed per week, automatic irrigation systems which meet the criteria would be allowed to water based on a certain percentage of evapotranspiration (ET), such as 50 %, instead of the time -limit based restriction. [Note: ET is a factor calculated according to climatic data, which is commonly used for lawn watering in commercial applications; ET data would be made available on the SPU web page and in alternate formats.] In the event of a total watering ban, these users would also be prohibited from watering (unless other safety -based criteria are met, as stipulated in the WSCP). The procedures to be met include: • The area must be audited by an Irrigation Auditor as certified by the Irrigation Association (list from the IA to be available on request) • Irrigation efficiency of the system must be at least 62.5 %, as defined by the Irrigation Association (includes both system distribution uniformity and management practices) • A baseline irrigation schedule based on historical ET must be provided to the system's owner/ operator • The owner/ operator must evaluate actual ET on at least a weekly basis and change the irrigation schedule if warranted by the ET index 24 • • The owner /operator must contact the utility to provide the name of the auditor, date of inspection and the efficiency rating, as well as the name, address and phone number of the contact person for the site being watered, prior to using the exemption • Time of day restrictions, such as watering prohibited between 10 AM and 7 PM, would have to be met. • The system must have a functioning rain- shutoff device. • Watering limitations stipulated by SPU would need to be followed. The limitations would be stated as a percent of ET, so that, for example, users who meet the above requirements would be able to water based on 50% of ET (the specific percent amount would be decided upon at the time the restriction is announced, depending on the supply outlook). The SPU website (www.ci. seattle. wa .us /util /rescons /conserve.htm) would be regularly updated to provide the information needed for those watering according to this exemption; the information would be available through other means as well Other Exemptions - For purposes of dust control, water may be applied to construction areas or other areas needing to comply with air quality requirements. If reclaimed water is available, consider requiring or promoting that it be used for dust control, if feasible BsWields and playfields may be watered at the minimum rate necessary for dust control and safety purposes The utility will exempt customers with special medical needs such as home dialysis from any emergency surcharge provided individual customers notify the utility of such a need Water Supply Actions Emergency pumping of Chester Morse Lake will commence when storage reaches the rim of the natural lake Intensive supply side management measures will be continued including possible changes in instream flow releases in consultation and cooperation with the Corps of Engineers, Tribes, and state and federal resource agencies If not already implemented, activate interties and any other alternative sources of supply 25 • • EMERGENCY CURTAILMENT STAGE At this stage, SPU recognizes that a critical water situation exists. Without additional significant curtailment actions, a shortage of water for public health and safety will be imminent. No prior emergency in the Seattle water system's history fits this description. This stage is characterized by two basic approaches. First, increasingly stringent water use restrictions are established and enforced. Secondly, significant rate surcharges are used to encourage customer compliance. While a rate surcharge may be implemented in either the Voluntary or Mandatory stages, a surcharge is a key component to the success of this stage and previous surcharge may be increased if appropriate. Emergency Curtailment Stage Actions Communication Actions Continue all previous, applicable actions Define the problem to the public as an emergency and institute formal procedures to declare a city emergency Inform customers of the rate surcharge and how it will affect them. Provide information on an appeal process Coordinate with police and fire departments requesting their assistance in enforcing prohibition of water waste Inform customers that taste and odor water quality problems may occur with system -wide reduced water consumption Inform customers about possible pressure reductions and problems this may entail Define and communicate exemptions for medical facilities and other public health situations SPU Internal Operating Actions Continue and enhance "Water Watcher" patrols 27 Continue actions listed in prior stages Curtail fire line testing unless it can be shown to be essential to protect the immediate public health and safety Further enhance water quality monitoring actions Supply and Demand Management Actions Rate surcharges would be implemented to encourage customer compliance with the restrictions, as follows: Commercial Customers - Commercial, multifamily and industrial users would be asked to reduce water use by a set percentage of their consumption during the same period in the previous year. Emergency rate surcharges would be established to provide an additional incentive to reduce water use. It is SPU's intention to establish a two -tiered structure. This "variable block approach" would allow for two different surcharge rates: one on the first block and a higher rate on the second block. These "blocks" would be based on the individual customer's consumption during the same period in the previous year. For example, if we were to target desired reduction of 85% from the previous year's consumption in that period, any consumption between 0 and 85% would be billed at one rate and any consumption over 85% would be billed at the second, much higher rate. In this way, the targeted reduction amount and resulting surcharges would be customized around each customer's water use patterns, while still resulting in a steep surcharge for consumption in excess of the target amount for each block. A billing system modification would be needed to allow SPU to accomplish this. If this has not been done by the time it may be needed, a simple across - the -board rate surcharge would be applied, as was done in 1992. Residential Customers - A three - tiered, increasingly steep rate structure would be implemented for residential customers (includes single - family dwellings and duplexes). While there are differences in household size, there is more similarity in residential domestic water use than there is in commercial water use. Work with Army Corps of Engineers to substantially limit lockages at 28 • • Hiram Chittenden Locks All lawn and turf irrigation would be prohibited Make reclaimed water available to tanker trucks for street cleaning, construction projects, landscape irrigation, dust control, etc. Require that all fire fighting agencies discontinue the use of water in training exercises until emergency is over Rescind all hydrant permits Require local parks departments to close down pools SECTION 4 SHORT TERM EMERGENCY CURTAILMENT PLAN Introduction Although many of the demand reduction measures employed would be similar to those used during a progressive, weather- related shortage, short term emergencies are unique because of a lack of preparation time and the iurgency of immediate, large -scale demand reductions. Each emergency scenario is different, but most of them require major curtailment actions by customers. Also, unlike drought, . some emergencies would be localized, requiring demand reduction for only a limited geographic area. Strategies for dealing with emergencies have been developed based on lessons learned from previous water utility events, other utility experiences, and a sorting of measures based on specific criteria. In order to provide a frame of reference for future emergency situations, a short discussion of recent water supply emergencies is provided. Background and experience with emergency demand reduction From 1987 to 1990, the Seattle water system experienced two pipeline failures and a major flood, causing short term water emergencies throughout the service area. In 1987 and 1988, different sections of the Tolt Pipeline broke, causing water shortages. In November 1990 torrential rains saturated much of Western Washington, causing flooding of the Cedar River and the closure of a primary water diversion facility and a water treatment plant. The supply of acceptable quality water was limited and stored water supplies were quickly depleted. These past experiences provide good examples of what can be expected during emergency water shortage situations. 1987 Tolt Pipeline Break: In November 1987, a section of the Tolt Pipeline in the Woodinville area experienced a major break near a joint in the 5.5 foot diameter, modified Prestressed Concrete Cylinder Pipe (PCCP). The pipeline break flooded a neighborhood near Woodinville, damaging several homes and temporarily leaving many residents without water. Approximately six million gallons of water were lost from the transmission line built in 1961, which runs between the Tolt River Regulating Basin and Seattle's North End 30 • • • distribution system. At the time of the pipeline break, there was an estimated two -day supply of water for the 10,000 homes affected. Water distribution was then switched over to the Cedar River system to make up for lost supply. Although some customers were initially out of water for a short period of time, the combined effort of Seattle's Water Supply and Operations staff and the Woodinville Water District helped restore water service and assure reliable water service during the repair period. During the event, customers were urged to cut back on water use until the repairs were complete. The public responded to the emergency conservation message by reducing consumption by 5% from 134.3 mgd to 128 mgd while the line was being repaired. 1988 Tolt Pipeline Break: In August 1988, another major break in the Tolt pipeline system occurred. This break occurred during the maintenance of a valve which closed too quickly, creating a high pressure surge. During the emergency event on the pipeline, approximately 100 customer were threatened with loss of water service or experienced low water pressure. Water was immediately diverted from the Cedar system to serve the Eastside customers. The break occurred during August, the peak water use season. Immediate action was taken to alert customers that water use reductions were required to avoid any additional water shortages. Through the media, customers were asked to curtail all nonessential water uses. Initially the goal was to reduce water use by approximately 30 %; however, only an 18 percent reduction was achieved. 1990 Cedar River Flood: In November 1990, heavy rains flooded many Western Washington rivers including Cedar River. Flooding exceeded the 100 year event and set new historic highs for precipitation. The Cedar River flooded, washing out huge amounts of soil and trees, resulting in a buildup of debris that threatened the Landsburg diversion. The flooding, rain and wind raised turbidity levels at both the Tolt and Morse Lake reservoirs and at the Landsburg diversion to unacceptable levels. At one point, the turbidity on the Cedar River, which provides 70 percent of Seattle's water, was 25 times higher than normal. The short- term water quality situation was determined to be fairly stable, but long- term supplies were in question. Critical storage - regulating facilities, such as Lake Youngs, were at or below minimum operating level. The high turbidity levels in drinking water supplies cannot be treated, as Seattle 31 has no filtration system (treatment is limited to chlorination, fluoridation and corrosion control). After a week of restricted water supplies, water consumption dropped approximately 10 percent, or 13 mgd, due to emergency demand reduction. Throughout the three water shortage events, consistent conservation messages and information on appropriate demand reduction measures were delivered to water users through the media and by direct contact. Although exact demand reduction goals were not always met by water users, water use was curtailed enough in each instance to be beneficial and avoid more serious water shortages. There are several criteria by which to decide which demand management measures are appropriate to initially reduce demand during an emergency: • Timing: can the measure(s) or action(s) deliver the necessary savings in the necessary timeframe, i.e., are immediate savings needed or can the system support a gradual reduction in demand; • Magnitude of savings: will the measure produce enough savings to make a meaningful difference i.e., reduce demand to the level the impaired water system can handle; • Season: does the action make any impact at the time of year that the emergency occurs, i.e., banning lawn watering will have little impact in November; • Costs: How severe are the cost implications of the measure to the customer, including local business and industry. Supply and Demand Management During Emergencies No single strategy can be created which will meet the needs of the department for all emergency scenarios. The criteria listed above create a framework for decisionmaking. Emergencies initially require quick and immediate response. Once an assessment is made as to how long it will take to restore the system, the immediate response strategy may change if it appears that the repair process will be lengthy. The strategy for most emergencies can be narrowed to measures having 32 • s • s the most immediate impact on water supply and consumption. All needed and available back up supplies would be activated during an emergency: interties, well - fields, off - loading wholesale customers who have other sources, etc. The table attached in Appendix A presents a range of potential demand management savings. The range depends on factors including the season, weather conditions, how effectively and urgently the message is communicated, whether or not an emergency surcharge is included, etc. • • Attachment B CONTACT LIST SPU Water Shortage Contingency Plan A working list of contacts for easy reference in case of a drought or emergency should be developed and regularly updated b the Resource Conservation Section in consultation with others in the Department. In addition to the communication elements contained in the WSCP, the following will be contacted directly in the event of a drought or emergency to inform them and ask for their support and cooperation in reducing demand. Customers List of large irrigators, including those using alternate sources List of large commercial and industrial customers City of Seattle Contacts Department Directors Contacts for: Seattle Department of Parks and Recreation Seattle Transportation Department Seattle Center Fire Department Executive Services Department List of City owned, non - recirculating and recirculating fountains Other public agencies with high visibility water use State Department of Transportation University of Washington Army Corps of Engineers King County Parks Department Landscape Interests Washington Green Industry Council King County Extension Washington State Nursery and Landscape Association Irrigation Association Washington Association of Landscape Professionals American Society of Landscape Architects Center for Urban Horticulture Association for Women in Horticulture Pacific Northwest Golf Course Superintendents' Association Business Groups Seattle /King County Chamber of Commerce Building Owners and Managers Association 34 • • Attachment C POSSIBLE VOLUNTARY CUSTOMER CURTAILMENT ACTIONS Residential Indoors • Flush the toilet less often. Each flush uses 1.6 to 7 gallons of water depending on age of toilet. • Use dish and clothes washing machines only when full. Top loading washers use 15 to 40 gallons per load. Front loading washing machines use approximately 30% less water than residential top loading models. • Keep drinking water cold in the refrigerator rather than running the faucet until the water's cold. • Take shorter showers; for every minute of reduced showering time, 2 1/2 to 5 gallons is saved. • Don't let the faucet run while shaving, brushing teeth; when washing vegetables, use a pan or bowl of water instead of letting water run. • Catch water while waiting for hot water for use on plants. Residential Outdoor Use • Wash cars less often; instead of using the hose consider a commercial car wash that recycles water. • Always use shut -off nozzle on hoses for window washing, etc. Landscape Measures - Commercial and Residential • Water lawns and gardens only early in the morning or late in the evening to reduce evaporation. • Consider letting established lawns go dormant until the shortage is over. Homes that normally water lawns will save from 25% to 50% by not watering lawns. • If it is raining don't water lawns. • Eliminate outdoor water play, i.e., running through the sprinkler, plastic water slides, wading /swimming pools that require frequent re -filling • Eliminate all hosing of sidewalks, driveways, decks. • Water established plants only when necessary: Probe into the soil to see if the root zone is dry. Mulch - -from two to four inches - -in planting beds will help retain moisture. • Create "wells" around trees to minimize runoff when they are watered. • If there is an automatic irrigation system have it audited to ensure that it is using water efficiently. Learn how to change the program that controls the system in order to cut back on irrigation time Equip it with a rain sensor that will override the system during rainfall. Commercial • Set goals for reduced water use and inform employees. Give employees ideas for curtailing water use and ask them for theirs. • Repair all leaks and dripping faucets. Urge employees to report leaks. • Reduce or eliminate routine vehicle cleaning during shortage. Use local commercial car wash facility that recycles water. • Ensure that all hoses are fitted with shut -off nozzles. • Eliminate hosing used ice as a means to dispose of it. • Eliminate all hosing of walkways, parking lots, loading docks. Pressure washers use substantially less water. • Postpone routine building washing until after shortage • Post signs informing customers of the nature of the water shortage and ask for cooperation in reducing water use • Turn off all nonrecirculating fountains. On windy days, where there is significant water loss, turn off all fountains • Restaurants: provide water only on request • Accelerate the update of restrooms by replacing older toilets with 1.6 gallon per flush models. • Parks• limit wading pool hours to days that are forecasted to be 70 degrees or warmer (wading pools are generally emptied and refilled daily for public health reasons)! 36 • • Attachment D Enforcement Procedural Check List MANDATORY RESTRICTIONS Determine number of warnings before surcharges applied; Self - duplicating "Notice of Violation" forms printed; one copy to leave at property, one to record violation with billing Staff with customer service and communication experience assigned to "Water Watch" Establish procedure for "Water Watchers" to record warnings and penalties on customer accounts Establish "hotline" for customers to complain about violations; to help avoid frivolous complaints, recorded message should note that only complaints with name and address recorded can be responded to Vehicles for "Water Watch" made available; vehicles that are signed as "Water Watchers" will increase visibility and effectiveness of enforcement • High priority routes established, e.g., areas with large lawns All field and customer service staff provided "fact sheets ", Question and Answer sheets; briefed on restrictions, enforcement procedures; field staff trained on tagging obvious violations Major Uses Toilet Irrigation Other Household Use Shower Water System Use Clotheswashing Cooling Process Other Leaks Dishwashing Recreation Food Service Total Total Use MGD May 15 -Sep 15 31 27 22 18 18 16 11 10 6 6 5 5 5 180 ATTACHMENT A ESTIMATED SAVINGS FROM POSSIBLE CURTAILMENT MEASURES Low 1.9 18.9 1.1 1.8 1.8 0.8 0.6 0.5 0.3 0.3 0.3 0.6 0.3 29.2 MGD High 3.9 24.3 2.2 3.6 3.6 1.6 1.1 1.0 0.6 0.6 0.5 1.3 0.5 44.8 Curtailment Savings % of Savings Residential Low 65% 6% 84% 70% 84% 5% 100% 10% 0% 10% 100% 5% 0% 5% 0% 0% 91% 100% 78% 0% 68% 5% 5% 5% 5% 13% 5% 16% % High 13% 90% 10% 20% 20% 10% 10% 10% 10% 10% 10% 25% 10% 25% "1 fewer flush" (25 -50% compliance) "Irrigation ban" (75 -95% compliance, new landscapes exempt) "Use Tess, don't let it run" (25 -50% compliance) "5 minutes max" (25 -50% compliance) "Only crucial health and safety needs" (100% compliance) "Eliminate partial loads" (25 -50% compliance) "Raise the thermostat" (25 -50% compliance) "Cut non - essential use" (25 -50% compliance) "Cut non - essential use" (25 -50% compliance) "Fix the leaks" (5 -10% compliance) "Eliminate partial loads" (25 -50% compliance) "Don't let it run" (25 -50% compliance) "Cut non - essential use" (25 -50% compliance) a • APPENDIX 0 HYDRAULIC MODEL SUPPORTING INFORMATION - LIST OF PIPE SEGMENTS • • Appendix 0 Tukwila Water System Plan Pipes in Hydraulic Model Length Diameter Hazen - Label (ft) (in) Material Williams C P -1 232.0 12 Cast iron 100 P -10 1,147.0 12 Ductile Iron 100 P -103 484.0 10 Cast iron 100 P -104 228.0 10 Cast iron 100 P -105 720.0 10 Cast iron 100 P -106 618.0 10 Cast iron 100 P -11 242.0 12 Ductile Iron 100 P -110 240.0 10 Cast iron 100 P -112 856.0 10 Cast iron 100 P -113 1,170.0 6 Cast iron 100 P -114 158.0 10 Cast iron 100 P -115 182.0 10 Cast iron 100 P -116 1,022.0 6 Cast iron 100 P -118 258.0 12 Ductile Iron 100 P -119 150.0 12 Ductile Iron 100 P -121 1,529.0 8 Cast iron 100 P -122 507.0 12 Cast iron 100 P -123 395.0 10 Ductile Iron 100 P -124 914.0 8 Cast iron 100 P -126 1,456.0 8 Ductile Iron 100 P -127 318.0 8 Cast iron 100 P -128 1,150.0 8 Cast iron 100 P -129 1,347.0 8 Cast iron 100 P -130 522.0 8 Cast iron 100 P -132 635.0 8 Cast iron 100 P -133 1,059.0 12 Cast iron 100 P -134 194.0 12 Cast iron 100 P -135 812.0 10 Cast iron 100 P -136 693.0 10 Cast iron 100 P -138 1,881.0 12 Cast iron 100 P -139 190.0 10 Cast iron 100 P -140 268.0 10 Cast iron 100 P -141 1,480.0 12 Cast iron 100 P -142 650.0 12 Ductile Iron 100 P -143 144.0 8 Cast iron 100 P -144 743.0 8 Cast iron 100 J: \Tukwila, Cityof\3- 04-113 \Task 1 -300 - Water System Plan Update \11 -24-04 Draft for Druann\Appendices\Appendix 0 and P pipes Page 1 of 13 Appendix 0 Tukwila Water System Plan Pipes in Hydraulic Model Length Diameter Hazen - Label (ft) (in) , Material Williams C P -145 289.0 8 Cast iron 100 P -146 279.0 8 Cast iron 100 P -147 286.0 10 Ductile Iron 100 P -149 258.0 6 Cast iron 100 P -15 352.0 10 Cast iron 100 P -152 384.0 10 Ductile Iron 100 P -153 360.0 10 Ductile Iron 100 P -154 166.0 10 Cast iron 100 P -155 624.0 12 Cast iron 100 P -156 931.0 12 Cast iron 100 P -159 459.0 6 Steel 100 P -16 274.0 10 Cast iron 100 P -160 589.0 2 Ductile Iron 100 P -162 153.0 12 Cast iron 100 P -163 794.0 6 Steel 100. P -164 293.0 6 Steel 100 P -165 323.0 6 Steel 100 P -166 193.0 6 Steel 100 P -167 2,041.0 12 Cast iron 100 P -169 460.0 6 Cast iron 100 P -17 307.0 10 Cast iron 100 P -170 190.0 6 Cast iron 100 P -171 837.0 6 Ductile Iron 100 P -172 190.0 6 Cast iron 100 P -173 723.0 6 Cast iron 100 P -174 299.0 6 Cast iron 100 P -175 1,385.0 8 Cast iron 100 P -178 557.0 6 Cast iron 100 P -179 714.0 6 Cast iron 100 P -18 1,431.0 10 Cast iron 100 P -180 182.0 6 Cast iron 100 P -181 594.0 6 Cast iron 100 P -182 135.0 6 Cast iron 100 P -183 262.0 6 Cast iron 100 P -185 427.0 6 Cast iron 100 P -186 571.0 10 Cast iron 100 J: \Tukwila, City of\3- 04-113 \Task 1 -300 - Water System Plan Update \11 -24-04 Draft for Druann\Appendices\Appendix 0 and P pipes Page 2 of 13 • Appendix O Tukwila Water System Plan Pipes in Hydraulic Model Label P -187 P -188 P -189 P -19 P -190 P -191 P -192 P -193 P -194 P -195 P -196 P -197 P =198 P -2 P -20 P -200 P -201 P -202 P -203 P -204 P -205 P -206 P -207 P -208 P -209 P -21 P -210 P -211 P -212 P -213 P -214 P -215 P -216 P -217 P -218 P -219 Length Diameter (ft) (in) Material 316.0 656.0 437.0 773.0 437.0 260.0 273.0 529.0 404.0 414.0 979.0 431.0 431.0 862.0 1,838.0 952.0 962.0 969.0 663.0 532.0 663.0 326.0 437.0 901.0 116.0 774.0 460.0 956.0. 250.0 160.0 652.0 638.0 172.0 850.0 837.0 975.0 10 Cast iron 10 Cast iron 10 Cast iron 12 Ductile Iron 6 Cast iron 6 Cast iron 6 Cast iron 6 Cast iron 6 Cast iron 6 Cast iron 6 Cast iron 6 Cast iron 10 Cast iron 12 Cast iron 12 Ductile Iron 6 Cast iron 6 Cast iron 10 Cast iron 6 Cast iron 10 Cast iron 10 Cast iron 6 Cast iron 6 Cast iron 8 Ductile Iron 6 Cast iron 10 Cast iron 6 Cast iron 8 Ductile Iron 6 Cast iron 6 Cast iron 8 Cast iron 8 Cast iron 6 Cast iron 6 Cast iron 8 Ductile Iron 6 Cast iron Hazen - Williams C 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 J: \Tukwila, City of\3- 04-113 \Task 1 -300 - Water System Plan Update \11 -24-04 Draft for Druann\Appendices\Appendix 0 and P pipes Page 3 of 13 • Appendix 0 Tukwila Water System Plan Pipes in Hydraulic Model Length Diameter Hazen - Label (ft) (in) Material Williams C P -220 ' 565.0 6 Cast iron 100 P -224 1,030.0 8 Cast iron 100 P -226 1,224.0 16 Ductile Iron 100 P -227 1,037.0 16 Ductile Iron 100 P -228 196.0 16 Ductile Iron 100 P -23 885.0 8 Cast iron 100 P -231 419.0 16 Ductile Iron 100 P -232 . 245.0 8 Ductile Iron 100 P -233 699.0 8 Ductile Iron 100 P -234 486.0 8 Cast iron 100 P -235 136.0 16 Ductile Iron 100 P -236 416.0 8 Cast iron . 100 P -237 617.0 8 Cast iron 100 P -238 215.0 8 Cast iron 100 P -239 504.0 8 Ductile Iron 100 P -24 1,052.0 8 Cast iron 100 P -240 531.0 16 Ductile Iron 100 P -241 1,197.0 8 Ductile Iron 100 P -242 511.0 8 Ductile Iron 100 P -243 811.0 8 Cast iron 100 P- 244 226.0 8 Ductile Iron 100 P -245 264.0 8 Ductile Iron 100 P -246 21.5.0 8 Ductile Iron 100 P -247 584.0 8 Ductile Iron 100 P -248 331.0 6 Ductile Iron 100 P -25 589.0 12 Cast iron 100 P -250 898.0 16 Ductile Iron 100 P -252 386.0 12 Cast iron 100 P -253 2,265.0 12 Ductile Iron 100 P -255 794.0 12 Cast iron 100 P -256 924.0 12 Cast iron 100 P -257 672.0 10 Ductile Iron 100 P -258 714.0 10 Ductile Iron 100 P -26 723.0 12 Cast iron 100 P -260 231.0 8 Cast iron 100 P -261. 2,257.0 8 PVC 100 J: \Tukwila, City of\3- 04-113 \Task 1 -300 - Water System Plan Update \11 -24-Q4 Draft for Druann\Appendices\Appendix 0 and P pipes Page 4 of 13 Appendix O Tukwila Water System Plan Pipes in Hydraulic Model Length Diameter Hazen - Label (ft) (in) Material Williams C P -264 653.0 12 Cast iron 100 P -265 1,507.0 12 Cast iron 100 P -266 759.0 6 PVC .100 P -267 569.0 18 Ductile Iron 100 P -268 724.0 18 Ductile Iron 100 P -269 969.0 18 Ductile Iron 100 P -27 858.0 12 Cast iron 100 P -270 1,138.0 18 Ductile Iron 100 P -271 335.0 10 Ductile Iron 100 P -272 175.0 10 Ductile Iron 100 P -273 330.0 10 Ductile Iron 100 P -274 224.0 10 Ductile Iron 100 P -275 266.0 10 Ductile Iron 100 P -276 271.0 10 Ductile Iron 100 P -277 224.0 10 Ductile Iron 100 P -278 229.0 10 Ductile Iron 100 P -28 718.0 12 Cast iron 100 P -280 265.0 12 Ductile Iron 100 P -281 259.0 12 Ductile Iron 100 P -282 250.0 12 Ductile Iron 100 P -283 254.0 12 Ductile Iron 100 P -284 241.0 12 Ductile Iron 100 P -285 245.0 12 Ductile Iron 100 P -286 259.0 12 Ductile Iron 100 P -287 259.0 12 Ductile Iron 100 P -288 103.0 12 Ductile Iron 100 P -289 1,535.0 4 Ductile Iron 100 P -29 858.0 12 Cast iron 100 P -290 713.0 8 Ductile Iron 100 P -291 717.0 8 Ductile Iron 100 P -292 715.0 8 Ductile Iron 100 P -293 702.0 8 Ductile Iron 100. P -294 715.0 8 Ductile Iron 100 P -295 706.0 8 Ductile Iron 100 P -296 706.0 8 Ductile Iron 100 P -297 1,182.0 8 Ductile Iron 100 J: \Tukwila, City of\3- 04-113 \Task 1 -300 - Water System Plan Update \11 -24-04 Draft for Druann\AppendicesWppendix 0 and P pipes Page 5 of 13 Appendix 0 Tukwila Water System Plan Pipes in Hydraulic Model Length Diameter Hazen- Label (ft) (in) Material . Williams C P -3 615.0 12 Cast iron 100 P -30 765.0 12 Cast iron 100 P -300 1,511.0 8 Ductile Iron 100 P -301 791.0 8 Ductile Iron 100 P -302 410.0 18 Ductile Iron 100 P -303 2,508.0 16 Ductile Iron 100 P -309 263.0 12 Ductile Iron 100 P -31 937.0 10 Cast iron 100 P -310 2,438.0 12 Ductile Iron 100 P -311 1,535.0 8 . Ductile Iron 100 P -312 404.0 8 Ductile Iron 100 P -314 838.0 8 Ductile Iron 100 P -315 731.0 8 Ductile Iron 100 P -317 507.0 6 Ductile Iron 100 P -32 466.0 12 Cast iron 100 P -320 884.0 8 Ductile Iron 100 P -322 139.0 8 Ductile Iron 100 P -325 106.0 12 Ductile Iron 100 P -328 478.0 18 Ductile Iron 100 P -33 224.0 12 Cast iron 100 P -335 199.0 12 Ductile Iron 100 P -338 71.0 6 Ductile Iron 100 P -339 533.0 12 Ductile Iron 100 P -34 457.0 8 Cast iron 100 P -340 563.0 12 Ductile Iron 100 P- 341 447.0 12 Ductile Iron 100 P -342 399.0 6 Ductile Iron 100 P -343 10.0 99 Ductile Iron 100 P -344 168.0 16 Ductile Iron 100 P -345 10.0 99 Ductile Iron 100 P -348 201.0 16 Ductile Iron 100 P -35 525.0 12 Cast iron 100 P -354 10.0 99 Ductile Iron 100 P -355 10.0 99 Ductile Iron 100 P -356 10.0 99 Ductile Iron 100 P -357 200.0 8 Cast iron 100 J: \Tukwila, City of\3- 04- 113\Task 1 -300 - Water System Plan Update \11 -24-04 Draft for Druann\Appendices\Appendix 0 and P pipes Page 6 of 13 Appendix O Tukwila Water System Plan Pipes in Hydraulic Model Length Diameter Hazen - Label (ft) (in) Material Williams C P -358 482.0 8 Cast iron 100 P -359 311.0 8 Ductile Iron 100 P -36 457.0 10 Cast iron 100 P -360 341.0 8 Ductile Iron 100 P -361 399.0 8 Ductile Iron 100 P -367 10.0 99 Ductile Iron 100 P -368 10.0 99 Ductile Iron 100 P -37 950.0 12 Cast iron 100 P -372 168.0 8 Ductile Iron 100 P -376 1,947.0 18 Ductile Iron 100 P -377 426.0 18 Ductile Iron 100 P -378 1,482.0 10 Cast iron 100 P -379 482.0 10 Cast iron 100 P -38 914.0 12 Cast iron 100 P -380 10.0 99 Ductile Iron 100 P -382 66.0 8 Ductile Iron 100 P -383 10.0 99 Ductile Iron 100 P -384 10.0 99 Ductile Iron 100 P -386 10.0 99 Ductile Iron 100 P -387 10.0 99 Ductile Iron 100 P -389 116.0 8 Ductile Iron 100 P -39 560.0 10 Cast iron 100 P -390 166.0 8 Ductile Iron 100 P -391 195.0 8 Ductile Iron 100 P -392 665.0 8 Ductile Iron 100 P -394 236.0 8 Ductile Iron 100 P -395 406.0 8 Ductile Iron 100 P -396 239.0 8 Ductile Iron 100 P -397 457.0 6 Cast iron 100 P -398 573.0 6 Cast iron 100 P -399 1,065.0 6 Cast iron 100 P -40 535.0 10 Cast iron 100 P -400 334.0 6 Cast iron 100 P -401 424.0 6 Ductile Iron 100 P -402 659.0 8 Ductile Iron 100 P -405 215.0 8 Ductile Iron 100 J: \Tukwila, City of\3- 04-113 \Task 1 -300 - Water System Plan Update \11 -24-04 Draft for Druann\Appendices\Appendix 0 and P pipes Page 7 of 13 Appendix 0 Tukwila Water System Plan Pipes in Hydraulic Model Length Diameter Hazen - Label (ft) (in) Material Williams C P -406 582.0 8 Ductile Iron 100 P -408 999.0 12 Cast iron 100 P -409 331.0 12 Cast iron 100 P -41 638.0 10 Cast iron 100 P -410 321.0 12 Cast iron 100 P -411 417.0 12 Cast iron 100 P -412 278.0 12 Cast iron 100 P -413 202.0 8 Ductile Iron 100 P -415 692.0 12 Ductile Iron 100 P -416 446.0 8 Ductile Iron 100 P -418 250.0 8 Ductile Iron 100 P -419 563.0 8 Ductile Iron 100 P -42 762.0 10 Cast iron 100 P -420 10.0 99 Ductile Iron 100 P -421 587.0 8 Ductile Iron 100 P -422 499.0 12 Ductile Iron 100 P -423 240.0 12 Ductile Iron 100 P -424 139.0. 12 Ductile Iron 100 P -427 300.0 8 Ductile Iron 100 P -428 646.0 8 Ductile Iron 100 P -429 342.0 8 Ductile Iron 100 P -43 930.0 12 Ductile Iron 100 P- 430 446.0 8 Ductile Iron 100 P -431 263.0 8 Ductile Iron 100 'P -432 353.0 8 Ductile Iron 100 P -433 259.0 8 Ductile Iron 100 P -434 187.0 4 Ductile Iron 100 P -435 198 :0 8 Ductile Iron 100 P -436 198.0 8 Ductile Iron 100 P -437 312.0 8 Ductile Iron . 100 P- 438 445.0 8 Ductile Iron 100 P -44 680.0 10 Ductile Iron 100 P -443 183.0 8 Ductile Iron 100 P -444 152.0 8 Ductile Iron 100 P -445 193.0 8 Ductile Iron 100 P -447 182.0 8 Ductile Iron 100 J: \Tukwila, City of\3-04 -113 \Task 1 -300 - Water System Plan Update \11 -24-04 Draft for Druann\Appendices\Appendix 0 and P pipes Page 8 of 13 • • Appendix 0 Tukwila Water System Plan Pipes in Hydraulic Model Length Diameter Hazen - Label (ft) (in) Material _ Williams C P -448 1,360.0 8 Ductile Iron 100 P -449 212.0 8 Ductile Iron 100 P -45 489.0 10 Ductile Iron 100 P -450 296.0 6 Ductile Iron 100 P -451 96.0 6 Ductile Iron 100 P -452 403.0 6 Ductile Iron 100 P -453 196.0 8 Ductile Iron 100 P -454 841.0 8 Ductile Iron 100 P -455 184.0 8 Ductile Iron 100 P -456 794.0 2 Ductile Iron 100 P -457 310.0 8 Ductile Iron 100 P -458 111.0 2 PVC 100 P -459 282.0 6 Ductile Iron 100 P -46 533.0 10 Cast iron 100 P -460 983.0 2 Ductile Iron 100 P -461 366.0 2 Ductile Iron 100 P -462. 461.0 2 Ductile Iron 100 P -463 76.0 12 Cast iron 100 P -464 1,383.0 12 Cast iron 100 P -465 1,630.0 8 Ductile Iron 100 P -466 1,866.0 8 Ductile Iron 100 P -467 1,227.0 8 Ductile Iron 100 P -469 124.0 6 Cast iron 100 P -47 172.0 10 Cast iron 100 P -470 165.0 6 Cast iron 100 P -472 200.0 2 Ductile Iron 100 P -474 658.0 8 PVC 100 P -475 227.0 8 PVC 100 P -477 302.0 8 PVC 100 P -478 717.0 8 PVC 100 P -479 122.0 8 Ductile Iron 100 P -48 519.0 10 Cast iron 100 P -480 119.0 8 Ductile Iron 100 P -481 126.0 8 Ductile Iron 100 P -482 463.0 10 Ductile Iron 100 P -483 224.0 10 PVC 100 J: \Tukwila, City of\3- 04- 113 \Task 1 -300 - Water System Plan Update \11 -24-04 Draft for DruannWppendices\Appendix 0 and P pipes Page 9 of 13 • • Appendix O Tukwila Water System Plan Pipes in Hydraulic Model Length Diameter Hazen - Label (ft) (in) Material Williams C P -484 156.0 8 Ductile Iron 100 P -485 327.0 16 Ductile Iron 100 P -486 300.0 8 Cast iron 100 P -487 170.0 8 Cast iron 100 P -488 745.0 8 Cast iron 100 P -489 217.0 8 Cast iron 100 P -49 785.0 12 Cast iron 100 P -490 390.0 8 Cast iron 100 P -491 477.0 8 Cast iron 100 P -492 688.0 8 Cast iron 100 P -493 144.0 6 Cast iron 100 P -494 330.0 6 Cast iron 100 P -495 979.0 12 Cast iron 100 P -496 556.0 10 Cast iron 100 P -498 360.0 10 Cast iron 100 P -499 413.0. 10 Cast iron 100 P -50 670.0 12 Cast iron 100 P -500 156.0 12 Cast iron 100 P -501 388.0 8 Ductile Iron 100 P -502 697.0 10 Cast iron 100 P -503 874.0 8 Cast iron 100 P -504 1,150.0 8 Cast iron 100 P -505 140.0 12 Ductile Iron 100 P -506 965.0 12 Ductile Iron 100 P -507 409.0 8 Cast iron 100 P -508 136.0 8 Cast iron 100 P -509 300.0 12 Cast iron 100 P -51 709.0 12 Cast iron 100 P -510 387.0 12 Cast-iron 100 P -511 158.0 6 Cast iron . 100 P -513 509.0 6 Cast iron 100 P -514 1,107.0 6 Cast iron 100 P -515 392.0 6 Ductile Iron 100 P -516 269.0 6 Ductile Iron 100 P -517 453.0 12 Ductile Iron 100 P -518 143.0 12 Ductile Iron 100 J: \Tukwila, City of\3- 04-113 \Task 1 -300 - Water System Plan Update \11 -24-04 Draft for Druann\Appendices\Appendix 0 and P pipes Page 10 of 13 Appendix 0 Tukwila Water System Plan Pipes in Hydraulic Model Length Diameter Hazen - Label (ft) (in) Material Williams C P -52 1,059.0 8 Cast iron 100 P -521 603.0 10 Cast iron 100 P -522 747.0 10 Cast iron 100 P -523 575.0 10 Cast iron 100 P -524 602.0 12 Cast iron 100 P -525 272.0 12 Cast iron 100 P -526 882.0 12 Cast iron 100 P -527 60.0 8 Ductile Iron 100 P -528 90.0 8 Ductile Iron 100 P -529 606.0 8 Ductile Iron 100 P -53 631.0 10 Cast iron 100 P -530 91.0 8 Ductile Iron 100 P -533 802.0 12 Ductile Iron 100 P -534 177.0 12 Ductile Iron 100 • P -536 102.0 10 Ductile Iron 100 P -537 904.0 2 Cast iron 100 P -538 365.0 10 Cast iron 100 P -539 160.0 10 Ductile Iron 100 P -54 399.0 8 Cast iron 100 P -540 277.0 10 Ductile Iron 100 P -541 1,661.0 18 Ductile Iron 100 P -542 10.0 99 Ductile Iron 100 P -543 146.0 8 Cast iron 100 P -544 161.0 8 Cast iron 100 P -545 121.0 8 Ductile Iron 100 P -547 655.0 6 Ductile Iron 100 P -548 550.0 8 Ductile Iron 100 P -549 152.0 8 Cast iron 100 P -55 635.0 8 Cast iron 100 P -550 350.0 8 Cast iron 100 P -551 690.0 8 Ductile Iron 130 P -552 60.0 8 Ductile Iron 100 P -553 580.0 8 Ductile Iron 100 P -554 162.0 8 Ductile Iron 130 P -555 634.0 8 Ductile Iron 100 P -556 230.0 6 Steel 100 J: \Tukwila, City of\3- 04-113 \Task 1 -300 - Water System Plan Update\ 1 1-24-04 Draft for Druann\Appendices■ppendix 0 and P pipes Page 11 of 13 Appendix 0 Tukwila Water System Plan Pipes in Hydraulic Model Length Diameter Label (ft) (in) Material P -557 994.0 12 P -559 1,054.0 10 P -56 579.0 10 P -560 202.0 10 P -561 1,549.0 10 P -562 1,353.0 8 P -563 353.0 18 P -564 5,617.0 18 P -565 1,735.0 12 P -566 942.0 12 P -567 266.0 8 P -568 1,70'0.0 8 P -569 941.0 8 P -57 376.0 10 P -570 1,971.0 8 P -571 165.0 8 P -572 138.0 8 P -573 472.0 8 P -58 434.0 10 P -59 486.0 10 P -6 196.0 12 P -60 245.0 12 P -61 245.0 12 P -62 769.0 10 P -63 949.0 10 P -64 673.0 10 P -65 774.0 10 P -67 309.0 8 P -68 533.0 8 P -69 615.0 10 P -7 790.0 12 P -70 728.0 8 P -71 582.0 12 P -73 265.0 12 P -74 741.0. 12 P -75 596.0 12 Ductile Iron Ductile Iron Ductile Iron Ductile Iron Ductile Iron Ductile Iron Ductile Iron Ductile Iron Ductile Iron Ductile Iron Ductile Iron Ductile Iron Ductile Iron Cast iron Ductile Iron Ductile Iron Ductile Iron Ductile Iron Cast iron Cast iron Cast iron Cast iron Cast iron Cast iron Cast iron Cast iron Cast iron Cast iron Cast iron Cast iron Cast iron Cast iron Ductile Iron Ductile Iron Ductile Iron Ductile Iron Hazen - Williams C 100 100 100 100 100 130 100 100 100 100 100 100 130 100 130 100 100 130 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 J: \Tukwila, City of\3-04 -113 \Task 1 -300 - Water System Plan Update \11 -24-04 Draft for Druann\AppendicesWppendix 0 and P pipes Page 12 of 13 • • Appendix 0 Tukwila Water System Plan Pipes in Hydraulic Model Length Label (ft) 1,135.0 518.0 627.0 713.0 156.0 357.0 1,092.0 541.0 323.0 284.0 324.0 789.0 423.0 887.0 302.0 P -76 P -78 P -8 P -80 P -81 P -82 P -84 P -85 P -86 P -87 P -89 P -9 P -90 P -95 • P -99 Diameter (in) Material 12 Cast iron 12 Ductile Iron 12 Cast iron 12 Cast iron 12 Cast iron 12 Cast iron 8 Cast iron 8 Cast iron 10 Cast iron 8 Cast iron 10 Cast iron 12 Cast iron 10 Cast iron 10. Cast iron 12 Cast iron Hazen - Williams C 100 100 100 100 100 100 100 100 100 100 100. 100 100 100 100 J: \Tukwila, City of\3 -04- 113\Task 1 -300 - Water System Plan Update\11 -24-04 Draft for DruannWppendices\Appendix 0 and P pipes Page 13 of 13 • APPENDIX P HYDRAULIC MODEL SUPPORTING INFORMATION - LIST OF NODES • Appendix P Tukwila Water System Plan Nodes in Hydraulic Model Label Boeing 12 -0380 Jorgensen Hyd -359A Hyd -360 J -340 J -341 J -342 J -343 J -344 J -345 J -346 J -347 J -348 J -349 Assoc.Grocers •Boeing 12 -0370 Calib Acura Calib Costco Calib Eagle Calib Ent. Ft. Dent Calib Ft. Dent Calib Levitz Canyon Estates CBD -10 CBD -101 CBD -102 CBD -103 CBD -104 CBD -105 CBD -106 CBD -107 CBD -108 CBD -109 CBD -11 CBD -12 CBD -13 Elevation 2010 Demand (ft) Zone (gpm) 5 320 Zone 223.54 50 320 Zone 196.99 160 340 Zone 3.85 175 340 Zone 3.85 180 340 Zone 3.85 175 340 Zone 3.85 185 340 Zone 3.85 115 340 Zone 3.85 100 340 Zone 3.85 75 340 Zone 3.85 120 340 Zone 3.85 155 340 Zone 3.85 155 340 Zone 3.85 175 340 Zone 3.85 50 360 Zone 20.76 5 360 Zone 44.42 25 360 Zone 9.09 25 360 Zone 9.09 25 360 Zone 9.09 30 360 Zone 9.09 25 360 Zone 9.09 20 360 Zone 9.09 155 360 Zone 43.31 30 360 Zone 9.09 50 360 Zone 9.09 50 360 Zone 9.09 25 360 Zone 9.09 100 360 Zone 9.09 50 360 Zone 9.09 50 360 Zone 9.09 25 360 Zone 9.09 50 360 Zone 9.09 55 360 Zone 9.09 30 360 Zone 9.09 25 360 Zone 9.09 25 360 Zone 9.09 J: \Tukwila, City of\3- 04-113 \Task 1 -300 - Water System Plan Update \11 -24-04 Draft for Druann\Appendices\Appendix 0 and P.xls nodes Page 1 of 10 • • Appendix P Tukwila Water System Plan Nodes in Hydraulic Model Elevation 2010 Demand Label (ft) Zone (gpm) CBD -14 35 360 Zone 9.09 CBD -15 25 360 Zone 9.09 CBD -17 30 360 Zone 9.09 CBD -18 25 360 Zone 9.09 CBD -186 125 360 Zone 9.09 CBD -19 20 360 Zone 9.09 CBD -20 20 360 Zone 9.09 CBD -22_ 25 360 Zone 9.09 CBD -23 25 360 Zone 9.09 CBD -24 25 360 Zone 9.09 CBD -25 25 360 Zone 9.09 CBD -26 25 360 Zone 9.09 CBD -27 20 360 Zone 9.09 CBD -271 25 360 Zone 9.09 CBD -28 20 360 Zone 9.09 CBD -29 20 360 Zone 9.09 CBD -30 20 360 Zone 9.09 CBD -31 20 360 Zone 9.09 CBD -316 115 360 Zone 9.09 CBD -317 120 360 Zone 9.09 CBD -318 120 360 Zone 9.09 CBD -319 20 360 Zone 9.09 CBD -32 25 360 Zone 9.09 CBD -320 25 360 Zone 9.09 CBD -321 25 360 Zone 9.09 CBD -322 10 360 Zone 9.09 CBD -323 5 .360 Zone 9.09 CBD -324 20 360 Zone 9.09 CBD -327 25 360 Zone 9.09 CBD -328 25 360 Zone 9.09 CBD -33 20 360 Zone 9.09 CBD -34 20 360 Zone 9.09 CBD -35 20 360 Zone 9.09 CBD -39 25 360 Zone 9.09 CBD-40 25 360 Zone 9.09 CBD-41 25 360 Zone 9.09 J: \Tukwila, City of13- 04-113 \Task 1 -300 - Water System Plan Update \11 -24-04 Draft for Druann\Appendices\Appendix 0 and P.xls nodes Page 2 of 10 • • Appendix P Tukwila Water System Plan Nodes in Hydraulic Model Label Elevation 2010 Demand (ft) Zone (gpm) CBD-42 CBD-43 CBD-44 CBD-45 CBD-46 CBD-47 CBD-48 CBD=49 CBD -50 CBD -51 CBD -52 CBD -53 CBD -54 CBD -55 CBD -56 CBD -57 CBD -58 CBD -61 CBD -62 CBD -63 CBD -64 CBD -65 CBD -66 CBD -67 CBD -68 CBD -69 CBD -70 CBD -71 CBD -72 CBD -73 CBD -74 CBD -75 CBD -76 CBD -77 CBD -78 CBD -79 25 360 Zone 9.09 25 360 Zone 9.09 25 360 Zone 9.09 22 360 Zone 9.09 25 360 Zone 9.09 20 360 Zone 9.09 23 360 Zone 9.09 23 360 Zone 9.09 20 360 Zone 9.09 20 360 Zone 9.09 20 360 Zone 9.09 30 360 Zone 9.09 30 360 Zone 9.09 22 360 Zone 9.09 25 360 Zone 9.09 30 360 Zone 9.09 20 360 Zone 9.09 20 360 Zone 9.09 15 360 Zone 9.09 65 360 Zone 9.09 30 360 Zone 9.09 30 360 Zone 9.09 30 360 Zone 9.09 25 .360 Zone 9.09 20 360 Zone 9.09 30 360 Zone 9.09 30 360 Zone 9.09 25 360 Zone 9.09 25 360 Zone 9.09 25 360 Zone 9.09 25 360 Zone 9.09 25 360 Zone 9.09 25 360 Zone 9.09 25 360 Zone 9.09 20 360 Zone 9.09 25 360 Zone 9.09 J: \Tukwila, City of\3- 04-113 \Task 1 -300 - Water System Plan Update \11 -24-04 Draft for DruannWppendices\Appendix 0 and P.xls nodes Page 3 of 10 • • Appendix P Tukwila Water System Plan Nodes in Hydraulic Model Elevation 2010 Demand Label (ft) Zone (gpm) CBD -94 20 360 Zone 9.09 CBD -95 25 360 Zone 9.09 CBD -99 20 360 Zone 9.09 Costco 20 360 Zone 26.67 Double Tree Suites 30 360 Zone 18.02 DoubleTree Inn 50 360 Zone 18.02 Embassy Suites 25 360 Zone 39.22 Hyd -1 10 360 Zone 9.09 Hyd -2 10 360 Zone 9.09 Hyd -241 10 360 Zone 9.09 Hyd -242 13 360 Zone 9.09 J -.1 15 360 Zone 9.09 J -100 20 360 Zone 9.09 J -109 70 360 Zone 9.09 J -110 70 360 Zone 9.09 J -111 115 360 Zone 9.09 J -116 40 360 Zone 9.09 J -117 50 360 Zone 9.09 J -118 30 360 Zone 9.09 J -119 25 360 Zone 9.09 J -120 20 360 Zone 9.09 J -121 25 360 Zone 9.09 J -122 20 360 Zone 9.09 J -123 30 360 Zone 9.09 J -124 25 360 Zone 9.09 J -125 25 360 Zone 9.09 J -126 15 360 Zone 9.09 J -127 20 360 Zone 9.09 J -128 20 360 Zone 9.09 J -129 25 360 Zone 9.09 J -130 5 360 Zone 9.09 J -131 25 360 Zone 9.09 J -132 25 360 Zone 9.09 J -133 5 360 Zone 9.09 J -134 25 360 Zone 9.09 J -135 20 360 Zone 9.09 J: \Tukwila, City of\3- 04-113 \Task 1 -300 - Water System Plan Update \11 -24-04 Draft for Druann\Appendices\Appendix 0 and P.xls nodes Page 4 of 10 • Appendix P Tukwila Water System Plan Nodes in Hydraulic Model Elevation 2010 Demand Label (ft) Zone (gpm) J -136 5 360 Zone 9.09 J -137 5 360 Zone 9.09 J -138 5 360 Zone 9.09 J -139 10 360 Zone 9.09 J -140 20 360 Zone 9.09 J -141 5 360 Zone 9.09 J -142 10 360 Zone 9.09 J -143 25 360 Zone 9.09 J -144 35 360 Zone 9.09 J -145 85 360 Zone 9.09 J -146 75 360 Zone 9.09 J -147 75 360 Zone 9.09 J -158 75 360 Zone 9.09 J -163 50 360 Zone 9.09 J -180 175 360 Zone 9.09 •J -181 100 360 Zone 9.09 J -187 185 360 Zone 9.09 J -190 170 360 Zone 9.09 J -192 160 360 Zone 9.09 J -193 175 360 Zone 9.09 J -194 130 360 Zone 9.09 J -195 120 360 Zone 9.09 J -196 150 360 Zone 9.09 J -197 170 360 Zone 9.09 J -198 140 360 Zone 9.09 J -2 20 360 Zone 9.09 J -203 120 360 Zone 9.09 J -204 15 360 Zone 9.09 J -205 10 360 Zone 9.09 J -206 10 360 Zone 9.09 J -208 15 360 Zone 9.09 J -209 20 360 Zone 9.09 J -210 30 360 Zone 9.09 J -211 15 360 Zone 9.09 J -212 15 360 Zone 9.09 J -213 15 360 Zone 9.09 • J: \Tukwila, City of\3- 04-113 \Task 1 -300 - Water System Plan Update \11 -24 -04 Draft for Druann\Appendices\Appendix 0 and P.xls nodes Page 5 of 10 • Appendix P Tukwila Water System Plan Nodes in Hydraulic Model Elevation 2010 Demand Label (ft) Zone (gpm) J -214 20 360 Zone 9.09 J -215 17 360 Zone 9.09 J =216 5 360 Zone 9.09 J -243 15 360 Zone 9.09 J -278 20 360 Zone 9.09 J -279 20 360 Zone 9.09 J -280 20 360 Zone 9.09 J -281 20 360 Zone 9.09 J -282 20 360. Zone 9.09 J -283 20 360 Zone 9.09 J -285 25 360 Zone 9.09 J -286 15 360 Zone 9.09 J -287 15 360 Zone 9.09 J -289 15 360 Zone 9.09 J -3 15 360 Zone 9.09 J -300 25 360 Zone 9.09 J -301 15 360 Zone 9.09 J -302 25 360 Zone 9.09 J -304 5 360 Zone 9.09 J -305 15 360 Zone 9.09 J -307 15 360 Zone 9.09 J -308 15 360 Zone 9.09 J -309 15 360 Zone 9.09 J -310 15 360 Zone 9.09 J -311 15 360 Zone 9.09 J -312 20 360 Zone 9.09 J -313 20 360 Zone 9.09 J -314 170 360 Zone 9.09 J -315 175 360 Zone 9.09 J -327 7 360 Zone J -328 5 360 Zone 9.09 J -329 25 360 Zone 9.09 J -330 13 360 Zone J -331 40 360 Zone 9.09 J -332 25 360 Zone 9.09 J-4 10 360 Zone 9.09 J: \Tukwila, City of\3- 04-113 \Task 1 -300 - Water System Plan Update \11 -24-04 Draft for Druann\Appendices\Appendix 0 and P.xls nodes Page 6 of 10 • • Appendix P Tukwila Water System Plan Nodes in Hydraulic Model Label J -5 J -7 J -8 J -9 J -97 J -98 SC -1 SC -2 SC -3 SC-4 SC -5 SC -6 SC -7 SC -8 SC- Hyd221 SF -148 SF -149 SF -150 SF -151 SF -154 SF -156 SF -157 SF -159 SF -160 SF -161 SF -162 SF -164 SF -165 SF -174 SF -175 SF -176 SF -207 SF -217 SF -218 SF -219 SF -220 Elevation 2010 Demand (ft) Zone (gpm) 15 360 Zone 9.09 30 360 Zone 9:09 20 360 Zone 9.09 20 360 Zone 9.09 20 360 Zone 9.09 20 360 Zone 9.09 25 360 Zone 8.51 25 360 Zone 8.51 25 360 Zone 8.51 25 360 Zone 8.51 25 360 Zone 8.51 25 360 Zone 8.51 25 360 Zone 8.51 25 360 Zone 8.51 25 360 Zone 8.51 90 360 Zone 9.09 110 360 Zone 9.09 120 360 Zone 9.09 150 360 Zone 9.09 115 360 Zone 9.09 75 360 Zone 9.09 85 360 Zone 9.09 170 360 Zone 9.09 115 360 Zone 9.09 135 360 Zone 9.09 75 360 Zone 9.09 120 360 Zone 9.09 175 360 Zone 9.09 130 360 Zone 9.09 150 360 Zone 9.09 160 360 Zone 9.09 20 360 Zone 9.09 20 360 Zone 9.09 20 360 Zone 9.09 20 360 Zone 9.09 20 360 Zone 9.09 J: \Tukwila, City of\3- 04-113 \Task 1 -300 - Water System Plan Update \11 -24-04 Draft for Druann\Appendices\Appendix 0 and P.xls nodes Page 7 of 10 • • Appendix P Tukwila Water System Plan Nodes in Hydraulic Model Elevation 2010 Demand Label. (ft) Zone (gpm) SF -221 15 360 Zone 9.09 SF -222 15 '360 Zone 9.09 SF -223 10 360 Zone 9.09 SF -224 10 360 Zone 9.09 SF -225 15 360 Zone 9.09 SF -226 15 360 Zone 9.09 SF -227 15 360 Zone 9.09 SF -228 15 360 Zone 9.09 SF -229 15 360 Zone 9.09 SF -230 20 360 Zone 9.09 SF -231 20 360 Zone 9.09 SF -232 20 360 Zone 9.09 SF -233 20 360 Zone 9.09 SF -234 20 360 Zone 9.09 SF -235 20 360 Zone 9.09 SF -236 20 360 Zone 9.09 SF -237. 25 360 Zone 9.09 SF -238 15 360 Zone 9.09 SF -239 5 360 Zone 9.09 SF -240 10 . 360 Zone 9.09 SF -241 10 360 Zone 9.09 SF -242 15 360 Zone 9.09 SF -267 10 360 Zone 9.09 SF -268 10 360 Zone 9.09 SF -269 10 360 Zone 9.09 SF -277 15 360 Zone 9.09 SF -500 20 360 Zone 9.09 SF -501 20 360 Zone 9.09 SF -502 20 360 Zone 9.09 SF -503 20 360 Zone 9.09 Shasta 25 : 360 Zone 85.81 Hyd-112B 220 380 Zone 11.52 Hyd -112C 250 380 Zone 11.52 Hyd -112D 220 380 Zone 11.52 J -380 . 130 380 Zone .11.52 J -381 175 380 Zone 11.52 J: \Tukwila; City of\3- 04-113 \Task 1 -300 - Water System Plan Update \11 -24404 Draft for Druann\AppendicesWppendix 0 and P.xls nodes Page 8 of 10 • Appendix P Tukwila Water System Plan Nodes in Hydraulic Model Label Elevation 2010 Demand (ft) Zone (gpm) Hyd -62 N -153 N -155 N -166 N -167 N -168 N -169 N -170 N -171 N -172 N -173 N -177 N -178 N -179 N -182 N -183 N -184 N -185 N -189 N -199 N -200 N -201 N -202 N -265 N -270 N -271 N -317 N -318 N -326 J -333 J-461 J-462 J-463 J -464 J -465 J-466 250 400 Zone 2.83 205 400 Zone 2.83 230 400 Zone 2.83 230. 400 Zone 2.83 240 400 Zone 2.83 200 400 Zone 2.83 205 400 Zone 2.83 200 400 Zone 2.83 255 400 Zone 2.83 175 400 Zone 2.83 170 400 Zone 2.83 205 400 Zone 2.83 185 400 Zone 2.83 185 400 Zone 2.83 190 400 Zone 2.83 220 400 Zone 2.83 250 400 Zone 2.83 125 400 Zone 2.83 155 400 Zone 2.83 200 400 Zone 2.83 225 400 Zone 2.83 200 400 Zone 2.83 225 400 Zone 2.83 160 400 Zone 2.83 115 .400 Zone 2.83 180 400 Zone 2.83 165 400 Zone 2.83 200 400 Zone 2.83 250 400 Zone 2.83 225 465 Zone 350 465 Zone 1.56 350 465 Zone 1.56 330 465 Zone 1.56 270 465 Zone 1.56 325 465 Zone 1.56 230 465 Zone 1.56 J: \Tukwila, City of\3- 04-113 \Task 1 -300 - Water System Plan Update \11 -24-04 Draft for Druann\Appendices\Appendix 0 and P.xls nodes Page 9 of 10 • Appendix P Tukwila Water System Plan Nodes in Hydraulic Model Label J-467 J-468 J-469 J-470 J-471 J-472 J-473 J-474 J-475 Highline WD Intertie Kent Intertie WD 125 @ 116th WD 125 @ 52nd WD 125 @ S 144th J -262 J -263 J -264 J -266 Elevation (ft) 215 170 175 125 325 310 275 240 205 25 20 20 30 165 190 185 180 226 Zone 465 Zone 465 Zone 465 Zone 465 Zone 465 Zone 465 Zone 465 Zone 465 Zone 465 Zone Intertie Zone Intertie Zone Intertie Zone Intertie Zone Intertie Zone No Fireflow No Fireflow No. Fireflow No Fireflow 2010 Demand (gpm) 1.56 1.56 1.56 1.56 1.56 1.56 1.56 1.56 1.56 J: \Tukwila, City of13- 04-113 \Task 1 -300 - Water System Plan Update\1 1-24-04 Draft for Druann\Appendices\Appendix 0 and P.xls nodes Page 10 of 10 APPENDIX R WATER SYSTEM OPERATIONS AND MAINTENANCE MANUAL • • CHAPTER ONE INTRODUCTION I. OBJECTIVE The ,_ objective of this Operations Plan is to ensure satisfactory management of the water system operations through proper and efficient procedures. The use of this plan will help guarantee that improvements identified in the water comprehensive plan will be properly operated and adequately maintained to ensure the continued viability of the system. The City's Water Utility with the _assistance of this operations program will be better able to consistently provide reliable, high - quality drinking water. The development of this document is intended as a guideline for routine use by the Tukwila Water Utility employees. II. PLAN CONTENT /PROGRAM E EMENTS An operations program is required for all water systems by WAC 248 -54 -195. Each utility must develop a basic operations program tailored to specifically meet the needs of the utility. The level of detail and content of the program depends upon the size, complexity, and performance of each particular water system. Utilities are encouraged to develop an operations program that provides the level of detail needed to adequately operate the water system. In addition each water system has its own unique characteristics which require specific details continually identified through "on the job" experience. This operations manual contains the following major elements as part of the basic operations program: O Water System Responsibility and Authority O System Operation and Control O Equipment, Supplies and Chemical Inventory O Water Quality Monitoring 1 O Emergency Response Program O Cross - Connection Control. Plan O Water Conservation III. LOCATION The City of Tukwila is located south of Seattle, Washington and east of Seattle- Tacoma International Airport. It is bordered on the north by the City of Seattle, on the east by the Cities of Renton and Kent, and on the south and west by the City of Seatac and unincorporated King County. IV. HISTORY OF MUNICIPAL UTILITY In the late nineteenth _ and early twentieth centuries, scattered water wells and the Green River provided water supplies for the early residents in the Tukwila Area. The Tukwila Public Water System began in 1929 when a six -inch diameter steel water main was constructed from Beacon Hill in Seattle south under the Duwamish River to the Tukwila North Hill Area. In 1964, a local improvement district (LID) was formed in conjunction with the development of the Greater Southcenter Area. Federal funds from a H.U.D. Grant Program were used to complete a major water system improvement to the north section of Tukwila through which most of the old existing pipes were replaced. The growth of the Tukwila System is controlled by City codes and ordinances administered by the Tukwila Public Works Department. Developers typically are required to extend water mains to.their property lines. The Tukwila Fire Marshall designates the fire flow required for each type and size of building. The developer must then construct a water main of the designated capacity as part of the development and in accordance with the comprehensive plan. Maps and listings of water improvement projects are referenced and shown in the Tukwila 1991 Water Comprehensive Plan as adopted by City Council Resolution No. 1264. Other references used are from the TMC (Tukwila Municipal Code) and AWWA (American Water Works Association). 2 • • • • CHAPTER TWO WATER SYSTEM POLICIES, RESPONSIBILITY, AND AUTHORITY I. AUTHORITY, MANAGEMENT, AND PERSONNEL The City of. Tukwila is an optional municipal Code Class City and is authorized by the State of Washington under RCW 35.27 to operate and maintain public utility systems. The water utility is a group "A" system ID no. 89500F as designated through the Washington State Department of Health. Special utility districts lying inside the City Limits are granted a franchise by the City however the City reserves the right and authority to acquire those utility lines and facilities and provide water service to all water users within the City. The Tukwila Water Utility operates under the direction of the Public Works Director. The Public Works Operations Manager, Division I, oversees the supervisory responsibilities for the Water Utility's operation and maintenance as well as sewer, surface water, and streets. Day to day activities are conducted by the Water Crew Chief who reports to the Public Works Operations Manager. The Water Crew Chief also oversees water quality monitoring and cross- connection control. The Public Works Engineer covers budgeting, new or upgraded system design, operations analysis, and the construction of capital improvements as outlined in the Water Comprehensive Plan. FIGURE I illustrates the organizational structure of the Water Utility. The Public Works Department is located in the office building east of City Hall. The Public Works Department address is 6300 Southcenter Boulevard. All administration, engineering, and plan review, is accomplished at this location. Financial operations (bonds, billing, audit reporting, etc.) is 3 1 1 • FIGURE 1 City of Tukwila Public Works Department - Water Utility MAYOR CITY ADMINISTRATOR PUBLIC WORKS DIRECTOR CITY ENGINEER SENIOR ENGINEER MAINTENANCE SUPT. CREW CHIEF CREW LEADER UTILITY WORKER ■ METER READER UTIUTY WORKER accomplished in City Hall at 6200 Southcenter Boulevard. The Utilities Operations Center is located at 600 Minkler Boulevard. The Operations and Maintenance staff and all the equipment are located at the Operations Center. Key personnel and the 24 -hour emergency call out procedure are provided in Appendix A. At this time, people in the following staff positions are certified in accordance with State requirements: Operations Manager Division I.: Water Distribution Manager 2, Water Distribution Specialist 1, Cross Connection Control Specialist 1. Crew Chief: Water Distribution Manager 3, Cross Connection Control Specialist 1. Crew Leader: Water Distribution Manager 2, Cross Connection Control Specialist 1. 2 Utility Workers: Water Distribution Specialist 1, Cross Connection Control Specialist 1. 4 II. SERVICE POLICIES /FINANCIAL POLICIES Water service policies and financial policies are included as specific sections of Title 14 of the Tukwila Municipal .Code are as follows: 14.04.090 Connection to main. 14.04.100 Additional property connected _ Fee. 14.04.110 Change in size or location of connection 14.04.120 Application to discontinue water - Fee to turn water meter on. 14.04.125 Charge for shut-off notices for delinquent water service billings. 14.04.130 Cost of shutoff and turn-on by City. 14.04.150 Accounts to be in owners name. 14.04.160 Chapter compliance required. 14.04.165 Water shortage response plan. 14.04.170 Emergency change in water use. 14.04.175 Violation of Section 14.04.170. 14.04.180 Water falling on street or sidewalk. 14.04.190 Violation of Section 14.04.180. 14.04.200 City control of water use. 14.04.210 Use of water restricted during fire. 14.04.220 Right of City to shut off supply. 14.04.230 Meter ownership and maintenance. 14.04.240 Rates for metered water. 14.04.250 Fire protection. 14.04.260 Rates outside City limits. 14.04.270 Payment of charges - Delinquency. 14.04.280 Failure to receive bill. 14.04.290 Bathing or discarding substance in City water system. 14.04.300 Connection without permission. 14.04.310 Supervisor authority - Appeal to council. 14.04.320 Payment by City for fire hydrant supply. 14.04.330 Temporary water meters. Current rate sheet and financial sheet is in appendix B. 5 • • • • CHAPTER THREE SYSTEM OPERATIONS AND CONTROL I. OPERATIONS OBJECTIVE The objective of this component of the plan is to evaluate systems operations, identify preventive maintenance tasks, and establish emergency operation procedures. In order to accomplish this, it is necessary to fully understand the total system and each key component of the system separately as well as in relation to the entire system. Therefore, each component will be identified and the routine and preventive maintenance requirements discussed. II. GENERAL SYSTEM OVERVIEW The City of Tukwila purchases its entire water supply from the City of Seattle through wholesale meters at six (6) separate locations. The distribution system is fully metered for irrigation and potable uses. Storage is available at a two million - gallon concrete tank located on the North Hill. The pump station at the reservoir allows water to be fed into two different pressure zones. Telemetry equipment has been installed at the reservoir and at supply stations 11, 13, and 15, to monitor system status points and control the supply station valves. The control system sets the supply station valves to open or close thus invoking reservoir booster pump operation when the pressure is at or below the pump start setpoint. III. SYSTEM COMPONENT DIHCUSSION/ROUTINE OPER.ATIONIPREVENTATIVE MAINTENANCE This section discusses each of the system components, the procedure for routine operation, and preventative maintenance procedures. Main components of the City's system are: A) Source, B) Telemetering, C) Conveyance Piping, D) Pressure Zones /Isolation Valves, E) Reservoir and Pump Station, F) Valves, G) Fire Hydrants, H) Service Meters, I) Office Procedures, J) Property. The 6 • • major water system components are shown in Figure II. A. SOURCE A -1. GENERAL DESCRIPTION The source of water for Tukwila comes from the City of Seattle's Cedar River Watershed located southeast of North Bend in the foothills of the Cascade Mountain Range. The Tukwila Water System draws water from the Seattle Conveyance System at (6) separate locations. A water meter and pressure reducing valve (PRV) are used at each source point to measure water flow and to reduce the water pressure from 200 psi (Seattle) to about 145 -150 psi (Tukwila). If the Cedar River water supply is cut off, the City is supplied with water from the Tolt River source. Backup water is also available through inter-ties with neighboring water districts. The 48 -inch West Seattle Water Main is tapped in two locations north of Tukwila's Allentown Area (Meter Station 11 and Meter Station 168). Water flows south through a 10 -inch meter, 10- inch PRV and 5000 feet of 18 -inch ductile iron pipe to feed the north part of the Tukwila distribution system. Station 168 supplies the north area including the East Marginal Way corridor through a 12 -inch PRV. The 60 -inch Seattle West Valley Water Main is tapped in one location west of I -5 (Meter Station 16), two places in the Southcenter Area (Meter Stations'13 and 15) and one near West Valley Highway (Meter Station 14). These taps supply the central and south portions of the Tukwila System. The Cedar River pipeline is tapped at Beacon Avenue South and Leo Street for supply station 6. This tap supplies customers east of I -5 in .the old District #25 area. Tukwila's first supply station (No. 12) which includes 9 customers was transferred to Skyway Water & Sewer District in 1992 and is no longer part of the Tukwila System. In 1981 The Tukwila City Council authorized the mayor to sign the longterm purveyor's contract "version B" for water supply offered by the City of Seattle. Under the contract, Seattle guarantees Tukwila a reliable water .supply. In exchange, Tukwila is bound to purchase most or all of its water from Seattle under the contract until the year 2012. The Seattle 7 • • FIGURE 11 -10L.---- _J—loc. r=31FQ ... kt .....Jarzn.. clioc:::,:zz l....... 1. CIEZT:=110 i —1 CDMICMICI w —na V3VIE Major Water System Components • 2 M.G. North Hill Reservoir ,A Residential High Zone Bndry CI Supply Stations •. Division I Maintenance Shop 0 Public Works Administration 1. • • • Public Utilities routinely checks water quality within .the Tukwila distribution system. A -2. OPERATIONAL PROCEDURES The operational procedures for source water involve regulating and maintaining the six inlet supply stations. There are two distinct periods of operation for the stations: "Summer" (consisting of June, July, and August) and "Normal" (defined as September through May). These time periods are based upon the Seattle Public Utilities's definition of peak water flows. Seattle will charge a demand fee during the summer for peak water used based on the Utility's effective deficient water storage. During all months except June, July, and August of each year, the supply stations can be operated without concern for peaking flows. In this mode of operation, all stations act as a standard PRV and operate under pressure control. During the "Summer" period the stations are set to flow control mode where all changes in the controlled flow rates are made by authorized personnel at 9:00 A.M. each day. Recommended settings for the six inlet meters during "Summer" mode is set forth below: Supply Meter 6 - Not controlled. Supply Meter 11 - When this station is set in flow control mode, the RTU limits the flow to the setpoint which is typically maintained above 500 gpm. Variation occurs depending on demand needs or the current year water restrictions. Flow setpoints are set remotely at the Minkler Shops master water computer console. Supply Meter 13 - Controlled the same way as station 11. This supply station is considered the primary feed to the reservoir. Because of its close proximity to station 15, 13 is set as the lead station. Depending on demand needs the setpoint should be 8 maintained between 500 and 750 gpm. Supply Meter 14 - Not controlled. Supply Meter 15 - Since this station is treated as the lag station flows may be set from 0 to 250 gpm or else left in PRV mode. Supply Meter 16 - Not controlled. A -3. PREVENTIVE MAINTENANCE Throughout the year each supply station is inspected on a monthly basis by maintenance personnel. The general condition of the station is checked including the inlet /outlet pressures, PRV and pipe apparatus, solenoids, RTU /radio, dehumidifier, and lights. Also the strainer screens are removed, inspected, and cleaned for debris. Every 5 years all rubber components in the main pressure reducing valve and the pilot valve are replaced. B. TELTRv B -1. GENERAL DESCRIPTION A water telemetry and supervisory control system has been installed. The system includes automatic control equipment at three supply stations, and one at the reservoir in addition to the master telemetry unit and control computers at the Maintenance Facility. The system consists of a control computer that performs normal control functions such as data logging, telecommunications, and alarm functions. The data computer stores all historical data, trends, and graphs for ready access. Data Radios & the remote telemetry units (built by RUGID Computer) are installed at supply stations 11, 13,15 and at the reservoir pump station. B -2. OPERATION AND MAINTENANCE Operation of the supply and control system involves a summer scenario as defined previously under the "SOURCE" section for 9 • • controlling flows in the system. Normal operation using pressure control mode generally only requires maintenance of the data files. The historical data files need to be renamed every six months in order to keep their size manageable. Frequent tape backups of the data is recommended. At times the supply station RTU programs may need reloading or trouble- shooting depending upon the circumstances involved. Below is the procedure for using a laptop computer to begin diagnosing the problem. More detailed information on these programs is available in the Micro TCS notebook that came with the RUGID software which controls the system. 1) PROCEDURE FOR USING LAPTOP COMPUTER @ SUPPLY STATIONS a. Disconnect Serial connector between TCS & DataRadio. b. Using a 9 -pin Serial cable, connect computer to the TCS unit. c. Connect computer to power source & turn on computer. d. At menu prompt, select Smartware Communications or. ProComm. e. Choose menu item desired for Supply Stations. f. Once in Terminal Mode use the following keystrokes: CNTRL KKK (establish link to Rt7GID) C (command mode) LIST (lists program) CLEAR (clears out variables) RUN (begin program operation) Press <F10> to exit Smartware Communications Menu. g- h. Power down, disconnect computer & remove serial cable 10 i. Reconnect TCS to Data Radio. C. PIPES C -1. GENERAL DESCRIPTION The City's transmission and distribution piping consists of about 190,000 lineal feet. Most of the pipe is. 6 -inch or larger but 2 -inch and,4 -inch lines exist particularly in the Allentown area (formerly Water District 25). The majority of the lines are 8, 10, or 12 -inch ductile iron pipes although some of the older pipes are cast iron or steel. Detailed information about needed improvements is included in the City's Comprehensive Water Plan which also contains the 1:1000 scale water plan map showing pipe size, type and location. C -2. OPERATING PROCEDURES Operating procedures consist of first knowing where the pipes exist. The water plan map and associated as- builts are utilized for locating and working on the City's piping when required. Any discrepancies identified during repairs are noted and brought to the Engineering office for inclusion on the formal system maps. A set of 1:200 scale Kroll maps also exists to better determine the location of valves, hydrants, blowoffs, interties, and PRVs. It is important to implement operational practices that will protect the system's water quality. Routine flushing and periodic inspection and /or testing at water main appurtenances is normally done one or more times during the year. C -3. PREVENTIVE MAINTENANCE The most important preventive maintenance strategy relating to the City's pipes is the replacement and installation of pipe which meets the City's water construction. standards. As long as Class 52 ductile iron pipe and type K copper services are specified on projects, there is normally fewer problems with 11 • • the system. Good construction practices are a must, and care must be taken when handling pipe to preserve the integrity of the protective coating and lining. Water from the Seattle Public Utilities has a history of being very corrosive because of its low mineral content. This factor, in addition to Tukwila's wet corrosive soils, has resulted in the premature deterioration of old existing steel mains and galvanized steel services. D. PRESSURE ZONES /ISOLATION VALVES D -1. GENERAL DESCRIPTION The City currently has two pressure zones: The North Hill pressure zone and the 360 pressure zone. The North Hill reservoir is equipped with two separate pairs of pumps, one pair supplies each pressure zone. At the time the•North Hill reservoir was constructed, 18 one -way check valves were installed at approximately 175 feet above mean sea level to form a separately controlled pressure zone on the North Hill whenever the North Hill pressure zone pumps are operating. A zone similar to the North Hill has been isolated at Supply Station 16 near Crystal Springs Park, by way of an isolation check valve on Klickitat Drive. D -2. OPERATING PROCEDURES Please refer to the North Hill reservoir and pump station for the operation of the isolation valves associated pressure zone through the reservoir control system. D -3. PREVENTIVE MAINTENANCE Verify that all North Hill Zone isolation check valves are set for one -way operation on a yearly basis. Always follow safety procedures for confined spaces when entering the isolation valve manholes. The valves should be overhauled every 5 years in accordance with Cla -valve manufacturer's recommendations. 12 E. NORTH HILL RESERVOIR & PUMP STATION E -1. GENERAL DESCRIPTION The City of Tukwila completed the construction of •a 2 MG concrete prestressed water tank and pump facility in 1990. As part of the reservoir installation, the North Hill residential area was divided into a (separate) pressure zone by way of 18 one -way isolation valves located approximately along the 175 - foot elevation contour. This upper residential zone is fed by either or both of the variable speed pumps. The lower elevation system can be fed by either or both of the two large fixed speed pumps. The high capacity fire pump can supply both zones if a fire demand occurs. North Hill Pressure Zone Pumps: Two variable speed, vertical turbine pumps have been installed at the reservoir for the purpose of maintaining adequate pressure to the North Hill residential area. These identical pumps are rated at 490 gpm at 182 feet of Total Dynamic Head (TDH). 360 Pressure Zone Pumps: Two constant speed, vertical turbine pumps provide the alternative of pumping water from the reservoir back into the 360 (hydraulic grade line) pressure zone to provide supply and storage on a demand basis. These identical pumps are rated at 1090 gpm at 141 feet TDH. High Capacity Pump: A high capacity fire pump has been installed to augment system pressures in the event of excessive high demand such as fire control. The pump is rated at 4,000' gpm at 141 feet of TDH and can supply either zone. Because of the pump's extraordinary capacity, it is intended to augment the system only under emergency needs where there is a failure in the Seattle water supply. The power switch shall remain off at all times unless otherwise directed by the Mayor, through the Public Works Director or Fire Chief. Isolation Valves: Isolation between the North Hill and the 360 pressure zones is accomplished with 18 Cla- valves consisting of a diaphragm- actuated globe type A 81G -02, 125 class. The valves are installed in a 48 -inch shallow manhole. 13 Reservoir Control: An Allen- Bradley PLCS control system has been installed at the reservoir pump station. The North Hill Reservoir and Pump Station control system is not linked to the water distribution control system but it does monitor and respond to pressure variations in the distribution system resulting from Demand Control changes. In addition the Demand Control System can read reservoir level, inflow, outflow, and 360 zone pump status, by way of their respective analog outputs from the reservoir PLC. E -2. OPERATION & MAINTENANCE It is important that the water level in the reservoir be maintained at sufficient levels to ensure adequate equalization, standby and fire storage at all times while allowing proper turnover of the water. The level in the tank should not fall below 5096- during regular operation. a) GENERAL OPERATIONAL PROCEDURES - outlined as follows: 1. Verify the proper position of all manually operated valves, including those outside of the pump station. 2. Verify that all set points are correct. 3. Operation of the North Hill (high) zone pumps: i. The Lead /Lag position of each pump should be exercised a frequent and regular basis. This is accomplished by the 1 -2 switch designating either pump 1 or 2 as the lead. Upon turning the 1 -2 switch, the PLC will immediately make an incremental transition from one pump to the other in order to keep a constant pressure maintained to the zone. ii. At least once a month, both pumps should be shut down completely for 24 hours for the purpose of maintaining water quality near the one -way valves. Turn the H -O -A switch to the OFF position for pump 1 and pump 2 of the North Hill Zone. This allows the North Hill to 14 • • be fed directly from the 360 zone thus opening the one -way isolation valves and flushing supply water directly toward the upper zone. This routine may need to be done weekly during the summer in order to reduce the likelihood of detectable coliform counts. 4. Operation of the 360 zone (low zone) pumps: i. Since these pumps operate on demand the Lead /Lag switch can be changed on an as- needed basis. Always verify the operation of the multi - function valve(s) when one or both pumps are running. The multi - function valve(s) will open to allow recirculation into the reservoir to match the incremental demand while maintaining the set point pressure. Verify the proper operation of the flow meter(s) with flow out of the pump station. 5. Operation of the reservoir filling function: i. The filling rate (gpm) of the tank can be modified through the Specter anunciator panel on the front of the cabinet. First check that the Reservoir Fill M -A switch is in the "A" position. To modify the filling rate press the <LOOP /SCAN> button until the display shows "RES FILL" then press <UP ARROW> or <DOWN ARROW> to display setpoint status "SP - GPM ". Press the <CHANGE /ENTER> and arrow keys to achieve the desired GPM flowrate; then press <CHANGE/ ENTER> again. to accept the value selected. For manual filling, simply turn the M -A switch to the "M" position and slowly begin increasing the low zone multi- function valve dial keeping an eye on the low zone system pressure and flow readings. 15 • • b) DISINFECTION New storage facilities and facilities which have been repaired, cleaned, or had cathodic protection installed must be disinfected. Always disinfect water storage facilities whenever there has been any opportunity for contamination. NOTICE: Before . entering a water storage facility for any reason, personnel must observe the following safety precautions:. i. Test the atmosphere in the tank for toxic and explosive gases and for adequate oxygen. Alarm devices which are activated whenever unsafe air is encountered should be employed. ii. Provide adequate ventilation, especially when spraying. If ventilation is inadequate a self - contained breathing apparatus is needed. iii. All persons entering a tank must wear a safety harness. iv. One person trained in tank rescue procedures, safety and first aid must remain at the tank entrance observing the actions of all people in the tank. An additional person must be readily available to help the person at the tank entrance with any rescue operation. After inspection of the lid supports and general cleaning of the fill apparatus is performed, spray or brush the interior of the storage facility with 200 mg /L chlorine solution, working toward the hatch. When the tank is filled with new water, the chlorine residual must be tested for use. c) ESSENTIAL ALARM The following alarm conditions shall initiate an essential pump station alarm: i. Any essential pump alarm. 16 • • ii. High -high reservoir level. iii. Low -low clearwell level. iv. Fire pump inlet valve failure. v. Any analog input signal detected out of range. vi. Programmable Controller failure relay is energized. d) NONESSENTIAL ALARM The following alarm conditions shall initiate a nonessential pump station alarm: i. Any nonessential pump alarm. E -3. PREVENTIVE MAINTENANCE Weekly visits to the reservoir shall include checking that the upper zone pumps are still running, changing the lead and lag functions of each pump, inspecting light bulbs and indicators, recording the upper zone meter reading, and checking the general area for vandalism or other conditions. The tank itself shall be cleaned and disinfected every 2 years (See above section entitled DISINFECTION). F. VALVES F -1. GENERAL DESCRIPTION Tukwila maintains a network of valves that can isolate any portion of the system during an emergency, during construction, or at the time of repair. All valves installed in the City have been installed in accordance with the standards of the AWWA C -500 specification. Gate valves are to be resilient seat, opening counter- clockwise with a non - rising stem and standard 2 -inch (2 ") square stem nuts. 17 • F -2. OPERATING PROCEDURE Valves are opened or closed by removing the lid on the valve box then turning the operating nut on the top of the valve with a valve operating wrench. The hydraulic valve exerciser is employed as needed. Operation of the large valves particularly in the 360 -zone where the pressures are 150 psi require operation in such a way as to prevent water hammer. F -3. PREVENTIVE MAINTENANCE All valves are to be exercised annually and checked for water tightness. G. FIRE HYDRANTS G -1. GENERAL DESCRIPTION Tukwila has approximately 300+ City -owned hydrants throughout the water service area. Hydrants are shown on the 1:1000 scale water comprehensive plan map. Each public hydrant is assigned and labeled a hydrant number. The current Tukwila standard hydrant is a compression -type with oil reservoir conforming to AWWA specification C502 -54. The hydrant is equipped with two 2 -1/2 inch hose ports and one 5 -inch Stortz pumper discharge port. Hydrant color conforms to the "Rustoleum" #659 yellow gloss or approved equal. Bonnets and ports for hydrants are painted red for flows up to 500 gpm, orange for hydrants with flows from 500 to 1,000 gpm, and green for hydrants with flows greater than 1000 gpm. The current fire hydrant assembly standard is shown in FIGURE III. G -2. OPERATING PROCEDURES Generally, the most use and operation of the City's fire hydrants will be by the Tukwila Fire Department. The top operating nut is to be turned strictly with the use of a hydrant wrench. Check to see that all nozzle caps are secure. Unauthorized use of City fire hydrants is deemed theft III (TMC title 14.04.250). 18 00 0 5" STORTZ 18" FIGURE 111 FIRE HYDRANT TO BE PAINTED WITH TWO COATS OF " RUSTOLEUM" #659 YELLOW GLOSS. HYDRANTS ARE TO EQUAL MUELLER #A -423. MUELLER #A -419, OR CLOW MEDALUON #F -2545. HYDRANTS SHALL CONFORM TO A.W.WA SPECIFICATIONS C 502 -54; SHALL BE COMPRESSION TYPE AND SHALL HAVE A TWO PIECE BREAKING FLANGE WITH BREAKING THIMBLE AT THE GROUND UNE OR STEM; SHALL HAVE A SELF —OIUNG DRY BONNET WITH FACTORY FILLED RESERVOIR HOLDING APPROXIMATELY 8 OUNCES OF OIL OIL RESERVOIR SHALL BE SO DESIGNED AS TO GIVE A COMPLETE LUBRICATION OF STEMS EACH TIME THE HYDRANT IS OPERATED. THE UPPER STEM SHALL HAVE A BRASS SLEEVE. SIDEWALK PER CBD STANDARD CURB & GUTTER FINISHED PAVEMENT. SEE VALVE BOX DETAIL Match Main Depth PROVIDE THRUST BLOCK 6' RESIUANT WEDGE GATE VALVE Min. 3' & Max. 10' CAST IRON TEE (CEMENT UNED) —MJ X MJ X FL MECHANICAL JOINT 1 1/2 YD. PEA GRAVEL OR WASHED ROCK ( 3/8" TO 3") UNDISTURBED SOIL NOTES: CONC. BLOCKING DIM. 1 'X 1'X3" 6' DIA. DUCTILE IRON PIPE 2 -3/4 ASPHALT COATED STEEL SHACKLE RODS. SEE BLOCKING DETAIL UNDISTURBED SOIL FLANGE JOINT A. HYDRANTS SHALL BE EQUIPPED WITH TWO 2 1/2" N.S.T. HOSE PORTS AND ONE 5" STORTZ PUMPER DISCHARGE PORT, AND SHALL HAVE A 1 1/4" PENTAGON OPEN —UFT OPERATING NUT. HYDRANTS SHALL HAVE A 6" M.J. BOTTOM CONNECTION AND 5 1/4" MAIN VALVE OPENING, AND SHALL HAVE 18" ABOVE GRADE LEVEL TO THE CENTER OF THE PUMPER DISCHARGE PORT. B. WHERE NO CURB & GUTTER IS INSTALLED, FIRE HYDRANT SHALL BE LOCATED (IN RELATION TO STREET CENTER UNE) CLOSE TO PROPERTY UNE.. C. HYDRANT INSTALLATIONS TO BE PER THIS STANDARD PLAN AND REQUIREMENTS OF TUKWILA MUNICIPAL CODE 14.24 AND CITY ORDINANCE. City of Tukwila FIRE HYDRANT ASSEMBLY & SETTING DETAIL Xet to scale. DATE: 06/01 /92 W -4 G -3. PREVENTIVE MAINTENANCE The main maintenance items related to fire hydrants are: • Painting - About 100 hydrants are to be painted every year .on a continuous rotation basis to cover all hydrants within 3 years. • Visibility - The area surrounding the hydrant should be kept free of debris and vegetation. Hydrants and guard posts shall be in plain view for a distance of fifty feet in the line of vehicular approach (TMC 14.24.050). • Testing - The Fire Department may periodically test hydrants to ensure that pressure and flow is adequate. All hydrants shall be operated annually to verify that the main operating valve is functional and that no problems exist. A record of the date of testing for each hydrant is kept on the appropriate form. • Flushing - All dead -end hydrants and blow -offs should be flushed periodically to ensure the flow of fresh water to nearby services. Flushing is not normally done during water restrictions unless absolutely necessary. H. SERVICE METERS H -1. GENERAL DESCRIPTION All domestic and /or industrial consumption of water shall be metered. The City of Tukwila has about 1040 residential meters and 660 commercial /industrial meters (1993). Flow is measured in cubic feet (cf). Meters range in size from 3/4 inch residential to as large as 6 inch. Water service connections to other than single family residential shall be a minimum of 1 inch. Compound meters have a greater accuracy range and are the City's standard for meters 2 inches and larger. 19 • • H -2. PREVENTIVE MAINTENANCE Water meters are currently tested on the following schedule: 3/4 ",& 1" - 7 years (As time &.manpower allows) 1 -1/2" - 5-years 2" 1 - 2 years 3" &: 4" - 2 years 6" & up - Annually I. OFFICE PROCEDURES The City of Tukwila has a policy and procedures manual for all employees; which is available through the personnel office. Tukwila has been using the NARUC system for reporting utility maintenance costs. In 1994 a computerized maintenance management system (Micro Maint. from Reliable Technologies) was implemented to track and schedule maintenance activities as well as record maintenance procedures and associated costs. Meter readings and billings are done every month. A procedures checklist for utility billings is shown in FIGURE IV. J. PROPERTY J -1. GENERAL The Tukwila Water Utility has one parcel of land at 15045 57th Avenue South where the North Hill reservoir and adjacent pump station facility are located. The parcel is surrounded by 8 foot chain link fence topped with barbed wire and secured with a locked gate. J -2. MAINTENANCE The property surrounding the reservoir tank and pump station has a gabion wall on the lower west side with ivy as well as grass /clover mixture in other areas and various kinds of trees throughout the site. Summer part -time labor is utilized to keep the grounds cleaned and mowed. The irrigation system is to be winterized each fall and maintained in summer. '20 • • UTILITY BILLING CHECK LIST FIGURE IV Print Cash Receipts Register for the first 10 days and give to UB Accountant for approval. Post penalties around the 12th (Aging Date is 40 days past due). Print Daily Audit Register for penalties (billing register) and give to UB Accountant for approval. Don't Clear. Print Past Due Report for Shut Off List.. (Aging Date is 70 days and minimum amount is $10.00). Print Shut Off Notices and then Delinquent Bills. Prepare $10.00 AJ's for accounts getting shut off notices. ********************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** Resume posting cash receipts on a daily basis. Prepare file maintenance and adjustments, keypunch and then give to UB Accountant for approval. ********************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** BILLING PROCESS Review meter books for unusual or high consumption readings. Calculate manual accounts in meter books. Empty the bill file and begin keypunching meter books. UB Accountant will review. After all books keypunched and reviewed, print a Cash Receipts Register. Don't Clear. Print No Bill Report and Billing Register. Get message for bills from UB Accountant or Finance Director. Print Bills and prepare for mailing (pull multiples out to mail in envelopes). ********************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** MONTH -END Post remaining cash receipts and print Cash Receipts Register. Give to UB Accountant for approval. Print all Audit Registers and Clear them. Print Month -End Processing. • • CHAPTER FOUR EQUIPMENT AND SUPPLIES INVENTORY I. OBJECTIVE A sufficient stock of commonly used parts, supplies and equipment is necessary to quickly respond to various emergencies and perform minor repairs of the water system components. II. INVENTORY OF EOUIPMENT AND SUPPL ES A. EQUIPMENT The Tukwila Water Department has the following list of equipment that is available for direct use: 1 - 1 ton step van used as a utility vehicle 1 - 3/4 ton pickup used as a crew chief and work vehicle 1 - Mini pickup used for parts pickup and meter reading 1 - Backhoe used for excavations 2 - Light bar trailers /arrow boards used for traffic control and lane closures - 2 - Generators (4000 watt and 5500 watt) used for emergency power and for night work 4 - Pumps used for pumping excavations and vaults 1 - Gas powered pipe saw used for cutting pipe 1 - Hydraulic valve operator for exercising valves 2 - Pipe locators used for locating utility lines 1 - Pipe threading machine used for threading bolts and pipes up to 6" in diameter 1 - Atmosphere tester used to test vaults, manholes and reservoir tanks before entering the confined space 1 - Manhole /vault blower used to aerate confined spaces before entering A variety. of other miscellaneous equipment, tools and supplies plus the use of other City -owned equipment including but not limited to: Dump trucks, backhoes, asphalt equipment, jet truck, sweepers, trailers, compressors, compaction equipment, etc. 21 • • B. SUPPLIES The water utility keeps a stock of supplies to be ready for virtually any emergency or maintenance need throughout the system. This supply inventory is computerized on the maintenance management system (Micro- Maint). III VEHICLE MAINTENANCE The total City fleet of vehicles including the Water Department vehicles is maintained by the Tukwila Equipment Rental Department. This department is responsible for the purchase, maintenance, surplus, and disposal of all fleet vehicles. 22 • CHAPTER FIVE WATER QUALITY MONITORING I. OBJECTIVE A public water system is obligated to furnish its customers with healthful, potable. water. Healthful water is free of pathogenic organisms, poisonous substances, and excessive amounts of mineral and organic matter. Potable water may be water defined as free or nearly free of color, . turbidity, taste and odor. It has a moderate temperature and is aerated. To assure the greatest possible protection to health, enjoyment and usefulness, standards of acceptability have been established which define not only the types of impurities a supply may contain, but also the maximum permissible concentration of these impurities. These standards of acceptability are set forth in the "Rules and Regulations of the State Board of Health Regarding Water Systems, as outlined under WAC 248 -54 -165" and the Requirements for sampling, testing, reporting and maximum coliform bacteria, inorganic chemicals, and secondary contaminants are included in these rules and regulations. When water samples indicate that maximum contaminant levels for coliform bacteria and /or inorganic chemicals are exceeded, the rules and regulations require immediate action because the public health may be endangered. Samples which indicate the secondary contaminant levels have been exceeded do not require immediate action because they do not endanger the public health but may affect the aesthetic quality of the water. Procedures to be followed if these limits are exceeded are included in the legally enforced rules and regulations. 23 II. ROUTINE MONITORING The only way to ensure water quality to the customer's tap is by maintaining sound infrastructure and properly operating the distribution of water throughout the system. The system's upkeep depends on accurate maintenance records and consistent routine monitoring. These records document that the system's drinking water is safe. Since all water used in the Tukwila system is supplied through Seattle, routine water quality testing is accomplished through Seattle Public Utilities and their associated lab. 10 to 12 samples are taken each month by SWD personnel from Tukwila system sampling stands. Tukwila has also prepared a Coliform Monitoring Plan in accordance with Department of Health regulations. Water samples are taken monthly by City staff for coliform testing as required by the Plan. 24 • • • • • _CHAPTER SIX EMERGENCY RESPONSE PROGRAM I. OBJECTIVE The emergency response program is designed to restore service to the Utility's customers in the shortest time possible while minimizing damage and inconvenience caused-'by electrical, mechanical or structural failures in the water system. II. WATER SYSTEM PERSONNEL EMERGENCY CALL LIST During regular working hours the maintenance office can be contacted by calling 433 -1860. The Public Works engineering office is at 433 -0179 and the finance department is 433 -1835. The. following procedures are to be used to call out the maintenance department for emergency work at times other than regular working hours. Regular work hours are 7:00 A.M. to 3:30 P.M., Monday through Friday. 1. Call 369 -5673 - If no answer see #2 2. Call Division 1 Superintendent 246 -6459 - If no answer see #3. 3. Call Water Crew Chief 630 -3247 or the crew chief of the affected utility. Check the most updated Standby /call out procedures list for more (A sample is provided in APPENDIX A). This list is available through the Public Works offices and through the Tukwila Police Department. III. VULNERABILITY ANALYSIS AND CONTINGENCY PLAN The City has an emergency services operation plan. The basic plan is listed in APPENDIX B. A. Source - The City buys all of its water from the Seattle Public Utilities. Loss of this source means that Tukwila would be quickly out of water. A contingency would be opening up the interties between Kent, Highline or 25 setting up the pumping at the Renton intertie if those sources are available. B. Pipes - Normal operating pressures in the 360 -zone range from 135 to 155 psi. Most breaks can be quickly valved off however the greatest vulnerability is where the older mains are made of cast iron. Normal pressures in the upper residential zone range from 60 to 120 psi. C. Booster Pumps - All zones can be operated without the booster pumps. The upper residential zone would see a range of 40 to 95 psi instead of 60 to 120 psi. Loss of the pumps would make the reservoir storage unavailable. D. Reservoir - The system can work directly off Seattle supply without the reservoir. E. Power - Power is provided by Puget Sound Power and Light. Loss of power would shut down the pumps, reservoir control and data logging operations. The pumps can be activated with the City's portable generators. F. Communications - The City operates a base radio station from the Minkler shops to maintain contact with the field crews. During an emergency, the base station becomes the Tukwila Public Works emergency operations center. IV. WATER SHORTAGE CONTINGENCY PLAN A. SCOPE The Water Shortage Contingency Plan (WSRP) is designed to respond to any presently occurring or anticipated weather - induced shortage of available water. In the event of an emergency, the City of Tukwila would be concerned with: safety standards; fulfilling requirements for supplying water to other purveyors via existing taps or interties; and, managing the shortage in a way that minimizes net economic loss to the region. 26 B. AUTHORITY & APPLICATION Authority for requiring water use restrictions during emergency situations is granted to the Director of Public Works by City Ordinance No. 1592. These restrictions will apply to all Tukwila water customers and may include monetary penalties for repeat violations. C. PLAN COMPONENTS The plans for the Summer and Fall shortage scenarios are multi- staged, with the stages designed to be implemented as progressively more serious conditions develop. A description of each stage is listed in the Plan and parallels very closely the Seattle Public Utilities's Water Shortage Contingency Plan. D. WATER SHORTAGE PROCEDURES Tukwila staff will follow procedures as outlined below during a water shortage emergency: GENERAL: 1. Check answering machine for calls and reports. 2. Wear city shirt for identification. 3. Use city vehicle. 4. Meet with people whenever possible. 5. Be courteous and friendly. Try to be as helpful and informative as possible. 6 Give the water watcher hot line number (433 -1868) for information. 7. Take pictures of misuse and notify users of violation. 8. Try not try to wake people. Hang notice on door if no one is home or if you think they might be sleeping. 9. Turn in list of violators that you have found to the Crew Chief. EARLY SHIFT, SPECIAL SHIFTS AND CALL OUTS 1. Check locations previously notified of water misuse. 27 • • 2. Tour a section of the city looking for water violators. STANDBY 1. When called in to work tour the city for potential violators of water restrictions. 2. If you weren't called out Saturday, a pre -set time will be set on Sunday to tour the city. This time will change each weekend. Check with the superintendent before the weekend for the set time. If called and not at pre -set time. 3. Tell the superintendent the next work day what time you actually toured the city. REGULAR WORK SHIFT 1. Everyone will be water watchers and report by radio to the water department when a violation is found. 2. The water department will follow up on all complaints and violations. MAINTENANCE OFFICE 1. Division One Office will keep a spreadsheet of previous violators. Each day this list will be updated to track violators to set the actual fine for the offense. 2. The ,Division One Office will give the list to the Finance Department so they can send out the bills. 28 • CHAPTER SEVEN CROSS - CONNECTION CONTROL PLAN I. OBJECTIVE A cross - connection is any actual or potential link between drinking water and substances which are not part of the potable drinking supply. Contamination of the water system is possible through the action of backflow, typically caused by backsiphonage or backpressure. The potential for contamination of water lines at cross - connections requires conducting a program to protect the health of water consumers. This is to be done by systematically identifying and controlling actual or potential cross-connections. II. MUNICIPAL UTILITY'S PROGRAM The City of Tukwila follows the standards, permits, record keeping, inspection and follow -up as shown in • criteria for minimum testing procedures, the Cross Connection Control Manual AWWA M14. III. RESPONSIBLE PERSON The Superintendent, Water Crew Chief and field personnel are trained and certified for the control of cross - connections. 29 CHAPTER EIGHT WATER CONSERVATION PLAN I. OBJECTIVE Tukwila is committed to meeting the guidelines for wholesale customers as outlined in the Seattle Public Utilities Supply Plan under Appendix III titled "Long Term Conservation Plan ". In order to assure that an adequate and high - quality supply of water is available to meet future water needs, it is necessary to implement long -range plans, programs and facility development and rehabilitation projects in consultation with the existing wholesale supplier, the Seattle Public Utilities. In addition to participating in regional conservation programs, the Tukwila water utility provides information directly.to its customers regarding the importance of water conservation. Specific measures given in the Tukwila Water Comprehensive Plan include public education, technical and administrative assistance, leak detection, metering policies, seasonal rates, and developing irrigation use for reclaimed wastewater from the Renton Treatment plant (See the 1991 Water Comprehensive Plan for specific details). II. ONGOING PROGRAMS Specific ongoing actions relating to water conservation in the City of Tukwila are: • Higher Summer water rates for June through September. • Reminding customers about conserving water. (TMC 14.04.180 prohibits water falling on street or sidewalk.) • Water conservation tips printed on utility bills. • Conservation posters /literature available at City Hall. • Analysis of non - revenue water and leak detection. • Analysis of consumptive trends with the flow telemetry. 30 • • • Alerting customers as to abnormal meter readings. ♦ Assisting customers with plumbing questions on water saving devices. ♦ Requesting drought tolerant plantings and "rain smart" irrigation systems at permit application review. • Commercial toilet retrofit in cooperation with SWD and large irrigation system audits. 31 SAMPLE 0 APPENDIX A PUBLIC WORKS DEPARTMENT STANDBY /CALL OUT .PROCEDURES REVISED 3/94 The following procedures are to be used to call out the maintenance department for emergency work at times other than regular working hours. Regular work hours are 7:00 A.M. to 3:30 P.M.,' Monday •through Friday. 1. Call 369- 5673 - If no answer see #2 2. Call Division 1 Superintendent 246 -6459 - If no answer see 43 3. Call Crew Chief of affected department: Division 1 Supt. - Ted Freemire 246 -6459 Street - Stan Anderson 488 -8295 Water - Dave Grage ' 630 -3247 Sewer /Surface Water - John Howat 433 -6845 Division 11 -Supt. - Marvin Anderson 746 -7634 Building Maint. - Roger Running 246 -5237 . Equipment Rental - Les Beck 762 -3661 Recreation Director - Don Williams 848 -9587 Park Department - Paul Surek 863 -6539 . Golf Course - Chuck Morris 747 -7583 If you do not get an answer, call from the department Street Dept. Mark Badten Michael Back Gene Mongomery George Bucasas James Tryer John Shaw Andy Hrinchak 863 -5047 432 -4529 244 -8946 432 -3838 243 -5020 235 -4993 862 -0484 Water Dept. Jim Peterson Larry Nees V. San Nicolas 432 -3543 432 -3343 861 -5450 Sewer /Surface Water Jay Mounts Jon Grenfell Dave Lawrence Juan Prieto Dave Mackenzie Jim Henderson 833 -4212 953 -1883 939 -5840 242 -7680 858 -8075 847 -7282 list below: Building Maint. Carolyn Simons Henry Ancira P. Khampradith David Nguyen 781 -0986 850 -9492 824 -1959 746 -5154 Equipment Rental Elbert Field Ed Valentin Ed's Beeper Mike Ryckman Park Rick Atkinson Tim Carpentier Randy Engle Golf Pat Kelso Steve Rann Dwayne Newcomb WP:CALLOUT 661 -2327 271 -4653 626 -7999 852 -8677 Dept. 432 -1528 277 -2211 852 -5734 Course 228 -6116 244 -8051 271 -8359 APPENDIX B ANNEX - R PUBLIC WORKS DEPARTMENT I. General Organization /Responsibilities. The Public Work's Director has primary responsibility for the operation and control of the Public Works Department. The Department has three Divisions which carry out specific "line" functions: A. Engineering - Administered by the City Engineer who is responsible for the design and construction of infrastructure systems as well as infrastructure planning. B. Division I - Administered by the Division '1 Superintendent who is responsible for the repair and maintenance of infrastructure systems; to include: water, streets, sewer, and surface water. Each system is the responsibility of a Crew Chief who reports directly to the Superintendent. C. Division II - Administered by the Division II Superintendent who is responsible for the maintenance and repair of City facilities and equipment. The facilities responsibility is directed by the Building Maintenance Supervisor who reports directly to the Superintendent. The equipment responsibility is directed by the Lead Mechanic who also reports directly to the Superintendent. II. Emergency Response. The Public Works Department can be mobilized through established callout procedures and often is the first response department in situations involving natural disasters. In addition, all public works vehicles contain mobile communications capability via cellular phone and /or FM radio. Emergency callout numbers are posted in the Police Department along with an employee roster. III. Emergency Functions. The following paragraphs outline the primary and support (secondary) functions which can be provided by the Public Works Department during and after an emergency event. The functions are segregated according to the three Divisions of Public Works. A. Engineering: 1. Primary Functions. a. Damage Assessment /Control - The Engineering Division contains personnel who are intimately familiar with the infrastructure systems of the City and also have' experience ArNJEX - R Public Works Department PAGE TWO in the various engineering disciplines such as hydrology, geology, soils, and structures. In the event of a natural or manmade disaster, teams of engineers can be mobilized to field locations to provide damage reports and prioritization in terms of the likely threats to public safety and property. In addition, these same teams can engineer field solutions to threatening situations and supervise the implementation of remedial measures. b. Determination of Transportation /Evacuation Routes - The Engineering Division also has access to detailed aerial maps and road maps as well as the expertise and familiarity with City layout to devise primary transportation and evacuation routes during emergency events. c. Post - Disaster Reconstruction - As in the case of planning for future infrastructure improvements, the Engineering Division will assume the lead role in re- establishing critical services following an emergency event. 2. Secondary Functions. a. Notification /Warning - Engineering staff know the layout of the City and have vehicles equipped with communications to assist with local warning and notification efforts as needed. b. EOC Staff - If not needed in the field for primary functions, engineers and clerical staff can provide support services for the EOC operations. c. Traffic Control - Most Engineering personnel are trained in proper traffic control techniques and can assist in this function when primary functions are not required. B. Division I: 1. Primary Functions. a. Debris Removal - Division I has personnel trained in the operation of heavy equipment such as bulldozers, backhoes, trackhoes, ANNEX - R Public Works Department PAGE THREE front -end loaders, and graders. The Division has several pieces of their own equipment, including a twelve -yard dump truck. In addition, the Division frequently rents heavy equipment from local providers and maintains current contacts with such suppliers. Equipment and personnel are based at the Minkler Shops. Facility within easy access of the primary EOC. b. Infrastructure System Repairs - Each of the Division I crew chiefs are very familiar with the operations of their specific systems (e.g. water, sewer, surface water, etc.) and are able to minimize the effects of system failures in the event of a manmade or ndtural disaster. Each crew chief also has trained utility workers with specialized knowledge of system repair procedures and a stock of spare parts and supplies necessary to repair system components. c. Supply Distribution - In addition to the heavy equipment listed above, Division I also has several pickup trucks and a few flatbed trucks and small dump trucks capable of hauling quantities of protective supplies or other materials needed to effect rescue and /or protective operations (e.g. sandbags, shoring materials, medical /food supplies, etc.). d. Traffic Control - Division I personnel are trained in traffic flagging and have a large supply of warning signs, barricades, and traffic cones which can be used to effect street closures and /or designate evacuation routes. Personnel are also trained in traffic signal operation and maintenance. 2. Secondary Functions. a. Communications /EOC Support - Clerical staff and maintenance personnel are trained in the operation of the radio base station and can assist with the clerical and recording responsibilities in the EOC. b. Resource Acquisition - The Maintenance Superintendent and Crew Chiefs are familiar with local sources which provide equipment ANNEX - R Public Works Department PAGE FOUR and construction supplies and can assist in the acquisition of materials needed to respond to emergency situations. c. Notifications /Warnings - Crews in Division I have vehicles and know the City streets and would be a valuable resource in providing notification to citizens before or after emergency events. d. Search & Rescue /Medical Support - Maintenance personnel are required to have valid first - aid cards and are also are in generally good physical condition thus enabling them to support Police and Fire search and rescue operations as a secondary service. C. Division II. 1. Primary Functions. a. Facility /Equipment Repairs - Division II personnel are trained to keep City equipment (including emergency vehicles) and facilities operational in the event of an emergency. Facilities personnel have keys to provide access to facilities as well as knowledge of heating and electrical systems in each building. 2. Secondary Functions. a. Resource Acquisition - Division II personnel are familiar with local suppliers of major and minor equipment as well as supplies that may be needed during emergency situations. b.. Communjcations /EOC Support - Clerical staff and general personnel in Division II are trained in the operation of the radio base station. Crews also have hand -held radios and /or cellular phones which could be utilized during an emergency. Staff who are not involved with primary functions can provide staff support to the EOC. c. Search and Rescue /Medical Support - Division II personnel also have valid first -aid cards and are in generally good physical condition thus enabling them to assist Police and Fire personnel in search and rescue operations. • APPENDIX S CITY OF TUKWILA DESIGN AND CONSTRUCTION STANDARDS • • • • DEVELOPMENT GUIDELINES AND DESIGN AND CONSTRUCTION STANDARDS CHAPTER 7 WATER SUPPLY 7.0 GENERAL 7.0.1 COMPREHENSIVE WATER PLAN The City of Tukwila has adopted a Comprehensive Water Plan to ensure the development of an efficient and adequate water supply system for the City. All extensions, additions, changes, or alterations to the City water system shall be consistent with the Comprehensive Plan. The Comprehensive Plan indicates the general location and configuration of the proposed system supply mains, interties, and loops. The exact location or configuration of the system may be modified or adjusted by the Developer, provided the proposed system remains consistent with the overall concept of the Plan. All modifications to the Comprehensive Plan design requirements require written approval by the Director. If the City's Comprehensive Water Plan anticipates or indicates the system may be expanded in the future, the permit application plan submittal shall include the expansion plan into the design. 7.0.2 SYSTEM PRESSURE Public or private systems shall be designed to maintain a minimum residual pressure not less than 20 psi at ground level at all points in the system, under maximum instantaneous fire flow demand. 7.0.3 METERING All water used for any purpose other than fire protection service shall be metered. Each individual building requires a separate water meter and service line main tap. 7.0.4 WELLS New private wells or sources of water will not be allowed. Existing facilities covered by a current water right permit from the State of Washington will be allowed if they conform to all local, state, and federal laws and regulations. The City does not allow connection between public and private systems. Such connections are unlawful. 7.0.5 COMBINATION SYSTEMS Domestic water supply shall not be combined with any fire -only supply system for new construction. Existing combination systems are allowed only where the Permittee has City- approved fire line metering and has demonstrated to the Director that the private system complies with the most current cross connection control requirements. 61 • • DEVELOPMENT GUIDELINES AND DESIGN AND CONSTRUCTION STANDARDS 7.0.6 FIRE AND LOOPED SYSTEM If possible for purposes of meeting fire protection and water quality standards, water systems are to be looped in accordance with the City's Comprehensive Water Supply Plan and the Uniform Fire Code. Non- looped systems require the Director's approval. 7.0.7 RECLAIMED WATER Where available, reclaimed water can be utilized for non - potable uses such as irrigation, cooling, and energy needs. Technical specifications (i.e. blocking, valves, etc.) as provided in these Standards for potable water systems are also applicable to reclaimed water systems. In addition, non - potable, reclaimed water systems must be clearly identified with signs and purple coloring in accordance with the Water Reclamation and Reuse Standards of the Washington DOE manual, Criteria for Sewage Works Design'. 7.0.8 SYSTEM MODIFICATIONS Modification to the water supply or plumbing on private property requires upgrade of the meter(s) and the cross connection control to current standards. 7.1 METERED SERVICE 7.1.1 GENERAL A. All permanent meters for one project shall be located at the property line and within the right -of -way._ 1. Residential - Connections shall be a minimum of 3/4 inch and shall use one section of copper tubing type K continuous from the main to the meter, without any joints. Materials between the meter and the house must meet the current King County Department of Health standards. 2. Non - residential - Connections shall be a minimum of 1 inch and shall use one section of copper tubing type K continuous from the main to the meter, without any joints. Pipe and fittings shall be rated for pressure of twice the maximum working pressure of the 360 - pressure zone. 3. Deduct Meter - The meter shall read in cubic feet and shall have an ECR -WP register that is compatible to the Invensys automatic reading system. Install deduct meter for landscape irrigation next to the permanent-water meter or within six feet of the permanent meter when located in a landscaped area. In order to connect the deduct meter to the permanent meter reading system, connect the two boxes using PVC conduit. 4. Permanent Service Disconnection With approval from the Director, Permittee shall remove the corporation stop at the main and pipes, meters, etc. 62 DEVELOPMENT GUIDELINES AND DESIGN AND CONSTRUCTION STANDARDS 7.1.2 3/4" AND 1" SERVICE Materials 1. Tapping Saddle: Single strap Romac (iron pipe thread). 2. Corporation Stop: Mueller B -25028 or B- 20013. 3. Angle stop: Mueller ball valve with tailpiece containing angle check valve. 4. Meter Setter: No setters allowed. 5. Pipe: Type K copper tubing. 6. Meter Box: a. For 3/4" — Inland Foundry #2005 /Mid States plastic with D.I. lid b. For 1" - #2 Fogtite/Mid States plastic with D.I. lid 7. Plastic meter boxes allowed in landscape areas only. Solid steel 1/2" diamond plate lid in traffic areas. Boxes used in traffic areas require prior approval. Installation Per WS -01. 7.1.3 1 -1/2" AND 2" SERVICE • Materials A. Tapping Saddle: Double strap Romac (iron pipe thread). B. Corporation Stop: Mueller B -25028 or B -2969. C. Meter setter: Mueller B2422 -2 with a check valve on the downstream side and a built -in bypass assembly with lock wing: D. Bypass Assembly: 1" assembly with lockwing. E. Pipe Material: Type K copper tubing or high molecular weight black polyethylene pipe, with tracing tape. F. Meter Box: a. For 1 -1/2" meter - Fogtite #2 with 1/4" diamond - plate, solid, steel lid or Mid States plastic with D.I. lid. b. For 2" meter - Fogtite #3 or a 2' x 4' meter box, with 1/4" diamond plate, solid steel, lid with three 12 -inch minimum tiers or approved vault. Lids must have a hinged inspection plate, centered over meter. Plastic #3 in planter area is allowed. Installation 1. Install bypass assembly. 2. Embed pipe in 5/8" minus crushed rock. • 3. Per WS-02 and WS-03. • • DEVELOPMENT GUIDELINES AND DESIGN AND CONSTRUCTION STANDARDS 7.1.4 3 ", 4 ", AND 6" SERVICES Materials 1. Tapping Tee. Refer to Section 7.3.6, underwater mains. 2. Tapping Valve: Gate valve. Cast iron valve with cast iron valve box and 18" cast iron valve box top section. 3. Meter Valve: Gate valve with hand wheel. 4. Pipe Material: Ductile iron, Class 52. 5. Concrete thrust blocks. 6. Steel tie rods. 7. Bypass Assembly: 1 -1/2" with locking wings on ball valves. 8. Meter vault: Watertight 444-LA or 644-LA with spring assisted, galvanized - diamond plate cover with locking latch and recessed lift handle. Installation 1. Embed pipe in 5/8" minus crushed rock. 2. For ductile iron pipe, install concrete thrust blocks and/or steel tie rods at any change in service line direction. Field conditions may require installation of restrained joints. 3. Install service with bypass assembly per WS -04'. 4. Install one gate valve on each side of and immediately next to the meter. 7.1.5 TEMPORARY WATER METER Permittee rents the temporary meter from the City for use with one designated project. The temporary water meter is installed on fire hydrants only. The rental is subject to the following conditions: 1. Meter presented to Public Works Operation every 30 days for a meter reading and inspection. 2. Meter promptly returned following project completion or by the permit expiration, whichever comes first. Permittee receives a final bill when the meter is returned to Operations. 3. Meter returned in the same condition as when rented. The Permittee is responsible for meter damage or loss and shall pay all costs related to repair or replacement. 4. Permittee may move the meter(s) from one hydrant to another within the same project providing Permittee: a., Notifies and receives approval from the Water Department before -the meter is moved, and b. Uses hydrant wrenches when connecting or disconnecting the meter. 64 DEVELOPMENT GUIDELINES AND DESIGN AND CONSTRUCTION STANDARDS 7.2 WATER MAIN 7.2.1 GENERAL Water /Sewer Separation Install water mains at least 10 feet horizontally, measured edge to edge, from any existing or proposed sewer. The Director may allow deviation, provided the water main is laid in a separate trench or on an undisturbed earth shelf located on one side of the sewer, at such an elevation that the bottom of the water main is at least 18 inches above the top of the sewer. Water /Sewer Crossing Install water mains crossing sewer lines so that the bottom of the water main is at least 18 inches above the top-of the sewer. Locate full section of water pipe so that its midpoint is above the sewer pipe at the crossing. This installation may require special structural support for the water and sewer pipe. New Water Mains All new water mains within the City of Tukwila shall comply with the following: 1. Extend water main extensions along the entire property frontage. 2. Design velocities less than or equal to 10 feet per second, under maximum flow conditions, 3. Provide 3 feet to 5 feet deep covering over main: Pipe Size A. In residential zones, water mains shall be 8 -inch diameter, unless the Director requires larger pipe. B. In non - residential zones, water mains shall be at least 12 -inch diameter, or the size specified in the City's Comprehensive Water Plan, whichever is greater. Loop Systems Wherever possible, close or loop the systems to avoid non - looped lines. Where non - looped mains are unavoidable, install a standard 2 -inch blow -off assembly, for flushing purposes. Blow -off assembly per WS -09. If the Director deems flows and pressure sufficient, a fire hydrant may be required in lieu of the blow -off assembly. Traffic Areas Air and vacuum release valves in traffic areas require approval from the Director. 7.2.2 MATERIAL 1. All pipes, fittings, valves, hydrants, joints, and other components shall conform to AWWA, APWA/WSDOT standards, and be acceptable for use by the City of Tukwila. 2. Pipe - Ductile iron pipe, cement lined, standard thickness, Class 52 minimum, conforming to the standards of AWWA C -151. 65 • • DEVELOPMENT GUIDELINES AND DESIGN AND CONSTRUCTION STANDARDS 3. Fittings and Joints - Cast iron or ductile iron, with flanged or mechanical joint connections and the same thickness class as the pipe used. All fittings shall be cement mortar lined in accordance with AWWA C -104. 4. Cast iron fittings - Long body for operating pressure rating of 150 psi, unless otherwise noted. Metal thickness and manufacturing process shall conform to applicable portions of USA Standard A- 21.10, A- 21.11, B -16.2, and B -16.4. 5. Flanged Joint - Conforming to USA Standard B -16.1. Rubber gaskets for push -on- joint (Tyton) or mechanical joint (MJ) in accordance with AWWA C -1110. Gaskets shall be neoprene, chlorinated butyl, or cloth- inserted rubber. Type of connections shall be specified as push -on -joint (Tyton), mechanical joint (MJ), plain end (P.E.), flanges (FL) not threaded. 7.2.3 VALVES Material 1. Resilient seat, opening . counter- clockwise, non - rising stem type, with double 0- ring seal equipped with standard 2 -inch square stem nuts. Flanged valves or mechanical joint, suitable for installation with the type and class of pipe being used. 2. Gate Valves conforming to AWWA C -500. 3. Butterfly Valves conforming to AWWA Standard C -504, Class 150, cast iron short body and 0 ring stem seal. Butterfly valves in chambers shall have a manual crank operation. Buried butterfly valves shall have a standard 2 -inch operating nut and suitable valve box. Direct buried valves shall be ground rated. 4. Check Valves - 150 psi working pressure. 5. Air Release Valves per WS -07 and WS -08. Installation 1. Install valves at intervals sufficient to minimize sanitary hazards during repairs, no farther than 500 feet apart in industrial and commercial zones, and no farther than one block or 800 feet apart in other zones. 2. Install a gate valve for 12 -inch and smaller water mains. 3. Install a butterfly valve for water mains larger than 12 -inch diameter. 4. Install at least two valves at all tee intersections. 5. Install at least three valves at water supply /sanitary sewer crossings. 6. Install a gate valve at all hydrants and fire line extensions per WS -13. 7.2.4 BLOCKING Material 1. Cast in place with concrete originating from a commercial batch plant or commercial batch truck. The City does not allow hand mixing. 2. Tie -rods shall be galvanized or painted with a bituminous coating. 66 • • DEVELOPMENT GUIDELINES AND DESIGN AND CONSTRUCTION STANDARDS Installation 1. Provide reaction blocking at all tees, plugs, bends, and hydrants per WS -11 through WS -12. 2. Cast in place so blocking bears against fittings only. 3. Allow room at joints to allow dismantling. 4. Wrap fittings with plastic sheeting. 5. Do not backfill until the concrete reaches 3000 -psi strength. 6. Field conditions may require tie rods and /or restrained joints. 7.2.5 LINE TAPS General 1. The Permittee shall give the Public Works Department at least five working days notice of intention to disrupt service. 2. Connection to an existing, in- service, water main shall be made by a wet tap. All new connections to the City of Tukwila water system shall be in strict accordance with 7 -11.3 (9) A of Standard Specifications for Road, Bridge, and Municipal Construction. 3. The Director allows cut -ins as exception and may require the addition of in -line valve(s). Material 1. Size on Size - Tapping Tee of cast iron or ductile iron, full encirclement mechanical joint style, Mueller 2. Note: Other than size on size - Tapping sleeves of epoxy - coated fabricated steel. 3. Fabricated steel sleeves: ASTM 285 grade C or ASTM A.36 steel, with a fusion bonded epoxy coating to AWWA C213 -79. Painted coatings are not acceptable. Installation 1. Refer to WS -10. 2. A qualified tapping service approved by the Director must install the tap. Swab all fittings with a 5 -6% chlorine solution, in accordance with AWWA Standard C -601. 3. For approved cut -ins, assemble pipe, fittings, and gate valves at the site. Complete all assembly and ready it for installation before the water in the main is shut -off. Once the water is shut -off, the cut -in shall proceed until the line is restored to service. Installation, once begun shall not halt until completed., 7.3 FIRE LINE/HYDRANT Applicant shall make written request for any exception to the following hydrant requirements. 67 • • DEVELOPMENT GUIDELINES AND DESIGN AND CONSTRUCTION STANDARDS 1. Size hydrant supply lines to provide the fire -flow required by; 1) Appendix III -A of the Uniform Fire Code, Fire Flow Requirements for buildings and 2) the City's Water System Comprehensive Plan. 2. Install all fire hydrants, auxiliary gate valves, and supply lines per City WS -13 and WS -14. Install fire hydrant feed lines at right angles to the supply main in conformance with WS -13. 3. Locate hydrants so they are in plain view, for a distance of 50 feet, in the line of vehicular approach. The approach line -of -sight shall be free of shrubs, trees, fences, landscaping, etc. 4. Locate hydrants within 150 feet of the building and no farther than 300 feet from any perimeter point of the building. 5. Locate public fire hydrants at a maximum spacing of 300 feet along City water mains. 6. Leads from the service main to the hydrant shall be at least 6 -inch diameter and not over 50 feet long. 7.4 CROSS CONNECTION CONTROL 7.4.1 GENERAL In accordance with Washington State Department of Health guidelines for Group A Public Water Systems, the Director has implemented a cross - connection control program to protect the public water system from contamination via cross connection. The program requires elimination or control of any cross - connection between the distribution system and a consumer's water system by the installation of an approved backflow device. The owner of these devices must maintain and provide annual test results to the Department. 7.4.2 IRRIGATION SYSTEM Every new or modified irrigation system shall incorporate a double check valve assembly for cross connection control. 7.4.3 FIRE SYSTEM 1. On new design, the backflow- prevention device plans must be stamped, signed and dated by a Level III certificate of competency holder and by a professional engineer registered in Washington State. 2. On a retrofit backflow prevention design, the plans must be stamped, signed and dated by a Level III certificate of competency holder or by a professional engineer registered in Washington State. 3. When the backflow prevention device is installed outside the building and underground, the installer must have Level III certificate of competency or a Level U contractor's certificate of competency. If the installer is different from the 68 DEVELOPMENT GUIDELINES AND DESIGN AND CONSTRUCTION STANDARDS • designer, then the installer must stamp, sign and date the plans, in addition to the designer's stamp, signature and date. 7.4.4 WATER SUPPLY A. New Connection For new connections, the Director requires the installation of backflow protection at the water meter before water service is provided. Any connection for commercial or industrial accounts shall be required to provide premises isolation. For premises isolation, install a Reduced Pressure Principle Assembly, previously called a Reduced Pressure Backflow Assembly, immediately downstream of the permanent water meter. Installation at another location requires the Director's approval. B. Existing Connections When reviewing a Development Permit, including a Tenant Improvement (TI) application, the Director evaluates the existing service connection per the following criteria: 1. If the project includes any alterations to the existing plumbing system, then the entire plumbing system must be brought up to the current standards as set forth in the Uniform Plumbing Code, including the installation of a approved backflow prevention on the fire line and the water supply to the building, 2. If the project does not include any changes to the existing plumbing system, then such systems lawfully in existence at the time of installation may have their-use, maintenance or repair continued if the use, maintenance, or repair is in accordance with the original design and location and no hazard to life, health, or property has been created by such plumbing system. The Department reviews high health cross - connection hazard premises as defined in WAC 246- 290 -490, Table 9, for premises isolation requiring either an Air Gap (AG) or Reduced Pressure Backflow Assembly (RPBA), 3. If any previously unapproved backflow prevention device cannot be upgraded in the same location with an approved backflow prevention device, such limitations must be evaluated by the Director, 4. If a new device is installed at a location downstream from the original device, all pipe must first be approved for potable water use prior to. reconnection. The pipe material must be specifically rated for potable water use (no black iron), and the entire length of main to be converted must be thoroughly scoured using a multi- staged pigging process acceptable to the Director. • • • DEVELOPMENT GUIDELINES AND DESIGN AND CONSTRUCTION STANDARDS 7.5 INSPECTION AND APPROVAL 7.5.1 WATER MAIN TESTING A. All water mains and appurtenances shall be pressure tested for leakage in accordance with City requirements, after flushing and disinfecting for new and reestablished systems. The water main and appurtenances shall be brought to a hydrostatic pressure of 250 psi, measured at the high point in the line. Water mains require a one -hour test and fire lines require a two-hour test, during which time there cannot be any Toss in pressure. B. The main shall be tested between valves or at a maximum distance of 500 feet along the main. Any leaks or imperfections shall be corrected before final acceptance. No air will be allowed in the line. C. Insofar as possible, no hydrostatic pressure shall be placed against the opposite side of the valve being tested. Test pressure shall be maintained while the entire installation is inspected. The Permittee shall provide all necessary equipment and shall perform all work connected with the tests. Tests shall be made after all connections have been made, including all connections as shown on the plan. Insofar as is practical, tests shall be made with pipe joints, fittings and valves exposed for inspection. The owner shall perform the test to assure that the equipment to be used for the test is adequate and in good operating condition, and the air in the line has been released before requesting the City to witness the test. 7.5.2 FLUSH AND DISINFECT A. All new, cleaned or repaired water mains and some backflow preventer installations require disinfecting and flushing per AWWA Standard C -601. The flushing and disinfecting shall include detailed procedures for the adequate flushing, disinfecting, and microbiological testing. B. At no time shall chlorinated water from a new main be flushed into a body of fresh water including lakes, rivers, streams, and any and all other waters where fish or other natural water life can be expected. C. Sections of pipe to be disinfected shall first be flushed to remove any solids or contaminated material that may have become lodged in the pipe. D. At least twelve (12) hours after the flushing procedure, the Permittee shall request that the City Inspector collect water samples from the new system. These samples shall be taken in sterilized bottles and tested by a DOH approved testing lab, as designated by the Water Department. All samples must meet the DOH quality standards prior to placing the lines into service. E. • The Permittee shall dispose of treated water flushed from the lines. Prior approval from the Director is required for disposal to sanitary sewers or surface water systems. F. Bag test fire lines. 70 • DEVELOPMENT GUIDELINES AND DESIGN AND CONSTRUCTION STANDARDS FIGURE 5 WATER SUPPLY TYPICAL DETAILS WS -01 Meter — 3/4" and 1" WS -02 Meter — 1 -1/2" and 2" Setter WS -03 Service— 1 -1/2" and 2" Domestic WS -04 Meter - 3" and 6" WS -05 Not Available WS-06 Water Main — Valve Box Operating Nut Extension WS -07 Water Main — Air and Vacuum Release (non- Traffic Areas) WS-08 Not Available WS -09 Water Main - Blow Off Assembly WS -10 Water Main — Tapping Tee WS -11A Blocking — Deadman with 45° • WS-11B Blocking - Deadman with 45° Alternate WS-12A Blocking — Horizontal - Concrete (2 Sheets) WS-12B Blocking — Vertical - Concrete WS -13 Fire Hydrant — Assembly and Setting WS-14 • Fire Hydrant — Guard Post WS -15 Cross Connection Control — Fire (2 Sheets) WS-16 Encasement — Controlled Density Fill WS-17 Encasement — Steel WS -18 Trench — Bedding and Backfill 71 • APPENDIX Q HYDRAULIC MODEL SUPPORTING INFORMATION - WATER MODEL MAP • • APPENDIX T DISTRIBUTION SYSTEM RECOMMENDED CAPITAL IMPROVEMENTS • • APPENDIX U FINANCIAL INFORMATION • • • • • • CITY OF TUKWILA PRELIMINARY WATER UTILITY FINANCIAL PLAN SUMMARY OF REVENUE REQUIREMENT Budget Projected 2004 2005 2006 2007 2008 2009 2010 SOURCES OF FUNDS • Present Rate Revenues $3,750,000 $3,787,500 $3,825,375 $3,863,629 $3,902,265 $3,941,288 $3,980,701 Miscellaneous Revenues 159,343 181,672 185,878 225,888 233,046 241,563 253,858 TOTAL SOURCES OF FUNDS $3,909,343 $3,969,172 $4,011,253 $4,089,517 $4,135,311 $4,182,850 $4,234,558 TOTAL O &M EXPENSE 82,608,980 $2,352,444 $2,520,925 $2,619,792 82,724,329 $2,833,810 82,948,591 TOTAL TAXES/TRANSFERS $180,000 8200,359 $202,362 $204,386 $206,430 $208,494 $210,579 CAPITAL PROJECT BUDGET Capital Improvements - Preliminary Eng. $56,000 $59,640 $63,678 $68,174 $73,201 $78,844 $85,200 Capital Improvements - Infrastructure 2,226,000 485,960 497,987 510,035 522,045 533,948 545,660 Less: Outside Funding 1,907,000 15,150 15,301 15,455 15,609 15,765 15,923 TOTAL CIP FROM RATES $375,000 8530,450 $546,364 8562,754 $579,637 $597,026 $614,937 DEBT SERVICE $747,179 $745,613 $743,748 8450,092 $452,893 $449,415 $450,397 TOTAL REVENUE REQUIREMENTS Balance /(Deficiency) Before Added Taxes Plus: Additional Taxes w/ Rate Increase Net Balance /(Deficiency) of Funds $3,911,159 83, 828, 865 $4,013,400 $3,837,024 83 ,963,289 $4,088,746 $4,224,504 ($1,816) $140,307 ($2,146) $252,492 $172,022 $94,105 $10,054 $96 $0 $113 $0 $0 $0 $0 ($1,912) $140,307 ($2,260) $252,492 $172,022 $94,105 $10,054 RATE ADJUSTM'T AS A % OF RATE REV Debt Service Coverage Ratio: Before Rate Adjustment Working Capital - Operations Beginning Balance Less: Uses [1 ] Plus: Additions Ending Balance 0.0% -3.7% 0.1% -6.5% -4.4% -2.4% -0.3% 1.52 1.92 1.75 2.85 2.69 2.57 2.42 Minimum Target Balance: 45 Days of O &M: Construction Fund $4,233,674 $2,872,424 $2,993,194 $3,145,591 $3,307,006 83,499,561 $3,749,269 1,361,250 0 0 0 0 0 0 0 120,770 152,397 161,415 192,555 249,708 442,060 $2,872,424 $2,993,194 $3,145,591 $3,307,006 $3,499,561 $3,749,269 $4,191,329 $314,729 ' $335,748 $348,186 8361,326 $375,079 $389,487 Beginning Construction Fund Balance 8278,000 $280,780 $283,588 $286,424 $290,720 $295,081 $299,507 Plus: To Construction Fund 0 0 0 0 0 0 0 Investment Interest 2,780 2,808 2,836 4,296 4,361 4,426 4,493 Less: Uses of Funds 0 0 0 0 0 0 0 Ending Construction Reserve Balance2 $280,780 $283,588 $286,424 $290,720 $295,081 $299,507 $304,000 Minimum Target level : Average Annual Capital $587,395 $595,754 $595,754 $595,754 $595,754 $595,754 AVERAGE MONTHLY RESIDENTIAL RATES $27.50 Rate After Required Adjustment $27.50 $27.50 $27.50 $27.50 $27.50 $27.50 [1] Includes use of working capital reserve for capital improvements. 2004 also includes $100,000 transfer of funds to the Street Fund for final payment on interfund loan [2] Minimum construction reserve level should be equal to average annual capital expenditures. [3] Minimum meter charge of $6.00 per month plus 10 CCF of consumption at winter rates. Tukwila RR.xls Preliminary Draft 2/16/2005 City of Tukwila Water Fund - Exhibit Escalation Factors • Budget Projected ESCALATION FACTORS 2004 2005 2006 2007 2008 2009 2010 Revenues: Growth' Budget 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% Miscellaneous Revenues Budget 2.0% 2.0% 3.0% 3.0% 3.0% 3.0% Investment Interest Budget 2.0% 2.0% 3.0% 3.0% 3.0% 3.0% Expenses: Labor Budget 4.0% 4.0% 4.0% 4.0% 4.0% 4.0% Medical/Dental Benefits Budget 18.0% 18.0% 18.0% 18.0% 18.0% 18.0% Materials & Supplies Budget 2.0% 2.0% 2.0% 3.0% 3.0% 3.0% Equipment Budget 3.0% 3.0% 3.0% 3.0% 3.0% 3.0% Miscellaneous Budget 2.0% 2.0% 2.0% 2.0% 2.0% 2.0% ° Purchased Water Budget 3.0% 3.0% 3.0% 3.0% 3.0% 3.0% New Debt Service: Revenue Bond Term in Years Budget 20 20 20 20 20 20 Interest Rate Budget 6.0% 6.0% 6.0% 6.0% 6.0% 6.0% Public Works Trust Fund Term in Years Interest Rate Tukwila RR.xls Budget 20 20 20 20 20 20 Budget 0.5% 0.5% 0.5% 0.5% 0.5% 0.5% (1 J Historical growth in usage has been down, except for 2003 at 2.9 %. A conservative estimate is used for projecting to avoid over - estimating revenue which creates a need for additional increases in the future, if growth projections are not met. Preliminary Draft 2/16/2005 • City of Tukwila Water Fund - Exhibit Revenue Requirements Sources of Revenue Rate Revenues 343.401 Residential Rates Multl- family Senior Commercial Total Rate Revenues 333.334 342.400 343.402 343.403 343.404 343.405 343.406 343.407 381.110 369.900 397.222 Other Revenues Grants (Fema State Disaster) Protective Inspection Fees Meter Installation - Temporary Repair Services Sale of Material Miscellaneous Charges Shut Ott Notice Service Charges Reclaimed Water Charges Investment Interest Other Miscellaneous Transfer In/Hydrant Rental Total Other Revenues Total Sources of Funds Exttenses 501.340 Water Utilities Operations Salaries and Wages 340.11 Salaries 340.12 Extra labor 340.12 Overtime Total Salaries and Wages Personnel Benefits 340.21 RCA 340.23 PERS 340.24 Industrial Insurance 340.25 Medical, Dental, Life,Opticat 340.97 Self Insured Medical and Dental 340.26 Unemployment Comp 340.28 Uniform Clothing Total Personnel Benefits Supplies 31.01 Office & Safety Supplies 31.02 Operatlng Supplies 31.03 Repairs and Maintennce Supplies 31.04 Billing Supplies 31.05 Large Meters 33.01 Purchased Water 33.02 Demand Charge 33.03 Meter Charges 33.04 Reclaimed Water 35.00 Small Tools and Minor Equipment 35.01 Traffic Control Supplies Total Supplies Services & Charges 41.00 Professional Services 41.01 Utility One Call Service 41.02 Physicals - Hearing Tests 41.03 Maintenace Mgmt Sys Support 42.00 Communication 43.00 Travel 44.00 Advertising 45.00 Operating Rentals & Leases 45.94 Equipment Rental - Replacement 45.95 Equipment Rental - 0 & M 48.00 Insurance 47.00 Public Utility Services 47.01 Dirt Disposal 48.00 Repairs and Maintenance 48.04 Telemetry Repair 49.00 Miscellaneous 49.01 0OH Permit 49.02 Cascade Water Alliance 49.04 Water Quality Report 49.05 Eden Inforum Gold UB/Paroel Mgr. Total Other Services & Charges Budget 2004 Page 1 of 3 Projected 2005 2008 2007 2008 2009 2010 Notes $324,826 482,674 7,288 2,935,213 33,750,000 $328,075 487,501 7,359 2,964,565 $3,787,500 53,343 $0 1,000 1,020 2,000 2.040 2,000 2.040 2.000 2,040 2,000 2.040 2,000 2,040 10,000 10,200 40,000 64,272 3,000 3,060 92,000 92,920 $159,343 $181,672 33,909,343 33,969,172 $324,000 $338,960 8,000 6,240 5,000 5,200 $335,000 $348,400 $7,820 58,133 1,450 1,508 1,220 1,269 14,110 16,650 5,000 5,900 5,000 5,200 2,000 2,040 $38,600 540,699 $1,500 25,000 40,000 1,800 15,000 1,380,000 3.000 45,000 10,000 3,000 1,000 $1,525,100 $1,530 25,500 40,800 1,632 15,300 1,124,331 3.030 0 10.200 3,060 1,020 51,226,403 $331,355 5334,669 $338,016 492,376 497,300 502,273 7,433 7,507 7,582 2,994,211 3,024,153 3,054,395 33,825,375 33,863,629 $3,902,285 5341,396 507,296 7,658 3,084,938 $3,941,288 5344,810 As Growth 512,369 As Growth 7,734 As Growth 3,115,788 As Growth $3,980,701 $0 $0 $0 $0 $0 1,040 1,072 1,104 1,137 1,171 2,081 2,143 2,208 2,274 2,342 2,081 2,143 2,208 2,274 2,342 2,081 2,143 2,208 2,274 2,342 2.081 2,143 2,208 2,274 2,342 2,081 2,143 2,208 2,274 2,342 10,404 10,716 11.038 11,389 11,710 67,060 105,382 110,820 117,585 128,094 3,121 3,215 3,311 3,411 3,513 93,849 94,788 95,736 98,693 97,860 5185.878 5225,888 5233,046 $241,563 $253,858 34,011253 34, 089, 517 $4,135,311 $4,182,850 34,234,558 5420,742 5437,572 5455,075 5473,278 8,490 6,749 7,019 7,300 5,408 5,624 5,849 6,083 5432 ,840 5449,946 5487,943 5486,681 510,155 $10,561 510,984 511,423 1,830 1,903 1,979 2.058 1.539 1,601 1,665 1,732 22,190 26,185 30.898 36,459 7,863 9,279 10,949 12,920 8,309 6,582 6.824 7,097 2,513 2,584 2,615 2,667 552.401 558,654 565,914 574,356 51,581 26,010 41,618 1,665 15,608 1,169,304 3.060 0 10,404 3,121 1,040 51,273,387 One -time Revenue As Misc Revenue As Misc Revenue As Misc Revenue As Misc Revenue As Misc Revenue As Mlsc Revenue As Misc Revenue As Inv In•Resrva/Balance As Misc Revenue As Growth 5492,209 As Labor, New FTE '06 7,592 As Labor 6,327 As Labor 5506,128 51,592 $1,640 $1,689 28,530 27,326 28,148' 42,448 43,722 45,033 1,698 1,749 1,801 15,918 16,398 16,888 1,216,076 1,264.719 1,315,308 3,091 3,122 3,153 0 0 0 10,812 10,930 11,258 3,184 3,279 3,378 1,081 1,093 1,126 $1,322,210 $1,373,976 51,427,780 56,000 56.120 58,242 58,367 36.558 $6,755 300 306 312 318 328 338 1,000 1,020 1,040 1,061 1,082 1,104 5,500 5,610 5,722 5,837 5,953 8,072 2,500 2,550 2,601 2,853 2,708 2,780 1,500 1,530 1,561 1,592 1,824 1,656 500 510 520 531 541 552 1,500 1,530 1,561 1,592 1,624 1,656 22,593 23.271 23,969 24,888 25,429 26,191 33,000 33,990 35,010 38,060 37,142 38,258 32,000 32,840 33,293 33,959 34,638 35,331 15,000 15,450 15,914 18,391 16,883 17,389 10,000 10,300 10,609 10,927 11,255 11,593 10,000 10,200 10,404 10,812 10,824 11,041 0 0 0 0 0 0 4,000 4,080 4,162 4,245 4,330 4,416 3,200 3,264 3,329 3,396 3,484 3,533 30,000 30,600 31,212 31,838 32,473 33,122 2,500 2,550 2.601 2,653 2,706 2,760 15,187 15,491 15,801 18,117 16,439 16,768 5196,280 $201,012 $205,862 $210,834 5215,998 3221294 $11,880 As Labor, New FTE '08 2,140 As Labor, New FIE '08 1,801 As Labor, New FTE '06 43,022 As Medical/Dental:'06 15,245 As Medical/Dental: '08 7,381 As Labor, New FTE '06 2,721 As Misc; New FTE '06 584,190 $1,739 As Mat/Supp 28,990 As Mat/Supp 46,384 As MaVSupp 1,855 As Mat/Supp 17,394 As Mat/Supp 1,367,920 Avg $1/CCF, As Growth & Puroh. Wtr. 3,185 As Growth 0 Included in 33.01 in future 11,598 As Ma1/Supp 3,479 As MaVSupp 1060 As MaVSupp 51,483,703 $6,958 As Mat/Supp 348 As Mat/Supp 1,128 As Misc 6,194 As Misc 2,815 As Misc 1.889 As Misc 563 As Misc 1,689 As Misc 28,977 As Equipment 39,404 As Equipment 36,037 As Misc 17,911 As Equipment 11,941 As Equipment 11,262 As Misc 0 As Misc 4,505 As Misc 3,604 As Misc 33,785 As Misc 2,815. As Misc 17,103 04' impl.software, maint In future $228,725 City of Tukwila Water Fund - Exhibit Revenue Requirements • • Budget 2004 2005 Projected 2006 Page 2 of 3 • 2007 2008 2009 2010 Notes Intergovernmental Services/nteAund Payments 53.00 Ext. Taxes & Operating Assessments $180,000 $200,359 $202,362 $204,386 $206,430 $208,494 $210,579 Rate Rev ® 5.029% Total Intergovernmental Services $180,000 $200,359 $202.362 $204,388 $206,430 $208,494 $210,579 Capital Outlays 64.00 Machinery and Equipment $51,000 $52,530 $54,106 $55,729 $57,401 $59,123 $60,897 as Equip (3 %) 64.01 Telemetry System Update 20,000 2%600 21,218 21,855 22,510 23,185 23,881 as Equip (3 %) Total Interlund Payments for Service $71,000 $73,130 $75,324 $77,584 $79,911 182.308 $84,778 Miscellaneous General Governmental 597.190.00 Miscellaneous General Governmental 1445,000 $462,800 $481,312 $500,564 $520,587 $541,411 $563,067 As Labor Miscellaneous General Governmental • 5445,000 $482,800 5481, 312 $ 500,584 $520,587 $541,411 $563,067 TOTAL WATER UTILITY OPERATIONS $2,788,980 52,552,802 52,723,288 52,924,178 $2,930,759 $3,042,304 $3,159,170 Capital Improvement Preliminary Engineering 341.11 Salaries $41, 000 $42, 640 $44, 346. $48, 119 $47,964 $49,883 $51,878 As Labor Personnel Benefits 341.21 FICA 341.23 PERS 341.24 Industrial Insurance 341.25 Medical, Dental, L Ie,Optical 341.97 Self Insured Medical and Dental Total Personnel Benefits Total Preliminay Engineering 3,000 3,120 3,245 3,375 3,510 3,650 3,796 As Labor 1,000 1,040 1,082 1,125 1,170 1,217 1,265 As Labor 1,000 1,040 1,082 1,125 1,170 1,217 1,265 As Labor 1,000 1,180 1,392 1,843 1,939 2,288 2,700 As MedicaVDental 9,000 10,820 12,532 14,787' 17,449 20,590 24,296 As Medical/Dental $15,000 $17,000 $19,332 $22,055 $25,237 $28,961 $33,322 $56,000 $59,840 563,878 $88,174 $73,201 578,844 585,200 Capital Improvement Projects WT -07 .07 Maule Ave/interurban Ave S. Watennain $538,000 $0 50 $0 50 $0 $0 2004 Budget WT-05 .09 Southctr BNd. Main Replacement 330,000 0 0 0 0 0 0 2004 Budget 92WT -04 .16 Annexed Area Turnover 30,000 0 0 0 0 0 0 2004 Budget 95WT -01 .18 Allentown /Foster Point • 697,000 0 0 0 0 0 0 2004 Budget 03WT -01 .20 58th Ave S. Main Replacement 180,000 0 . 0 0 0 0 0 2004 Budget 92WT -08 .21 Interurban Water Reuse l 100,000 0 0 0 0 0 0 2004 Budget 88WT -01 .22 Water Comp Plan 90,000 0 0 0 0 0 0 2004 Budget 93WT -02 .28 Campbell Hill Waterline 193.000 0 0 0 0 0 0 2004 Budget 99WT -02 .31 Supply Station Upgrades & Abandon. 90,000 0 0 0 0 0 0 2004 Budget W -025 Relocate zone Valve in E. Marginal Way 0 35,000 0 0 0 0 0 Draft Comp Plan W -002 S. 137th St. & 53rd Ave South 0 35,560 0 0 0 0 0 Draft Comp Plan W-003 53rd Ave South: S. 139th St to 140th SL 0 18,800 0 0 - 0 0 0 Draft Comp Plan W-004 Macdam Rd. S.: S. 144th SL to S 152nd St 0 151,200 0 0 0 0 0 Draft Comp Plan W -005 Macdam Rd. S.: 152nd to Southcenter BNd 0 75,880 0 0 0 0 0 Draft Comp Plan W-006 Maule Ave. S.: S. 143rd SL & S. 144th St. 0 50,750 0 0 0 0 0 Draft Comp Plan W-007 S. 143rd PI.: East of Maule Avenue 0 0 53,900 0 0 0 0 Draft Comp Plan W -008 58th Ave S.: S. 142nd St. to S. 144th Street 0 0 38,960 0 0 0 0 Draft Comp Plan W-009 Interurban Ave SJWest Valley Hwy Improv. 0 0 123,480 0 0 0 0 Draft Comp Plan W -010 Southcntr Blvd. :SW Grady Way - Andover Park -0 0 131,250 0 0 0 0 Draft Comp Ptan W -011 Southcntr Blvd. :Andover Park E. - 85th Ave S. 0 0 0 42,000 - 0 0 0 Draft Comp Plan W -012 65th Ave. S.: Southcntr BNd. - S. 151stStreet 0 0 0 222,320 0 0 0 Draft Comp Plan W -019 Milkier BNd: East of Industry Drive 0 0 0 34,300 0 0 0 Draft Comp Plan W -020 Southcntr Prky:MInkier BNd. - S. 180th Str. 0 0 0 0 329,490 0 ' 0 Draft Comp Plan W -021 S. 180th Str.: East of Andover Park East 0 0 0 0 0 73,920 0 Draft Comp Plan W- 022 49th Ave S.: $.107th SL to S. 114111 Street 0 0 0 0 0 110,320 0 Draft Comp Plan W-023 W. Seattle Pipeline ROW: SS10 to Pacific Hwy. 0 0 0 0 0 0 53,200 Draft Comp Plan W-022 S. 113th SL Upsize 0 0 0 0 0 0 50,400 Draft Comp Plan W -028 Update Water Comp Plan 0 0 0 0 0 100,000 0 Draft Comp Plan OflSite Communication System to SCADA 0 0 0 50,000 0 0 0 Draft Comp Plan To Capital Reserves 0 120,770 152,397 181,415 192,555 249,708 442,060 Input Subtotal Capital Improvement Projects $2.226,000 5485, 960 $ 497, 987 5 510,035 $522,045 $533,948 $545,660 5385, 190 5345,590 $348,620 5829,490 $284,240 $103,600 $298,122 Total Capital Improvement 52 ,282,000 $545,600 $581,885 5578 ,209 $595,248 5512,792 5630,680 Less: Outside Funding Source 379.002 Contributions - Contractors/Develapers $5,000 $5,050 $5,101 $5,152 $5,203 $5,255 $5,308 as Growth 379.004 Contributions - Allentown/Ryan Hill 10,000 10,100 10,201 10,303 10,406 10,510 10,615 as Growth Working Capital Reserves I 1,261,250 0 0 0 0 0 0 Input PWTF/New PWTF 630,750 0 0 0 0 0 0 2004 Budget (29% $2 M) New Revenue Bond Issue 0 0 (0) 0 0 0 0 Calculated Total Outside Funding Sources , 51,907,000 515,150 515,301 515,455 515,609 515,785 515,923 397.340 Total CIP From Rates Tukwila RR.,dv 5375,000 5530,450 5548,364 5562, 754 5579, 637 5597, 028 5814,937 2004 8121=1.25x deprec.3%ye90 inc. 2003 Annual Deprec.Exp. $402,000 Preinarkwy Malt 7118"2005 • • • • City of Tukwila Water Fund - Exhibit Revenue Requirements Debt Service 501.85.00 Debt registration Costs 382.80 PWTF #PW-04. 691 -069 (29% Wtr.) 382.806 PWTF #PW -01- 691,064 (Val Vue - 100 %) PWTF 2001 -2005 (Foster Point • 20 %) 1993 Revenue Bonds (98% Wtr.) 1995 Revenue Bonds (100% Wtr.) New Debt Service New PWTF Loans Total Debt Service Budget 2004 Page 3 of 3 Projected 2005 2006 2007 2008 2009 2010 Notes $1,000 38,575 14,424 3,788 296,911 392,483 0 0 $747,179 TOTAL REVENUE REQUIREMENT (Expenses) 53,911,159 Balance/(Defctency) of Funds Plus: Add. Taxes w/ Rate Increase Net Balance/(Deficiency) of Funds Balance as a % of Rate Revenues (51,816) $98 (31,912) $1,020 51,040 38,575 38,575 14,424 14,424 3,788 0 295,024 292,427 392,783 397,283 O (0) O 0 5745,813 5743,748 $1,061 38,575 14,424 0 0 396,033 (0) 0 5450,092 $1,082 38,575 14,424 0 0 398,813 (0) 0 5452,893 31,104 38,575 14,424 0 0 395,313 0 0 5449,415 31,126 2004 Bdgt As Misc. 38,575 Debt Schad. ® 21/4, 20 Yr. 14,424 Debt Schell 0 .5 %, 20 Yr. O Debt Schad. ®5%, 20 Yr. O 2004 Bdgt/Debt Schedule 396,273 2004 Bdgt/Debt Schedule 0 6% 020 years, '06'10 O 1% ®20 years 5450,397 53,828,885 54,013,400 53,837, 024 53,983,289 54,088,748 $4,224,504 0.0% PROPOSED RATE ADJUSTMENT 0.0% Balance Alter Proposed Rate Adjustment (51,816) Debt Service Coverage Ratio Before Rate Adjustment After Proposed Rate Adjustment 1.52 1.52 5140,307 (52,148) $252,492 5172,022 $94,105 310.054 50 $113 $0 $0 50 50 3140,307 ($2,260) 5252,492 $172,022 $94.105 $10,054 -3.7% 0.1% -8.5% -4.4% -2.4% -0.3% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 5140,307 (52.146) 5252.492 5172,022 394,105 $10,054 1.92 1.92 1.75 1.75 2.85 2.85 2.69 2.69 2.57 2.57 2.42 2.42 Average Winter Single Family Rate (10 cct) 327.50 Cummulative Rate Adjustment Needed 527.50 $27.50 $27.50 $27.50 527.50 $27.50 Working Capital - Operations Beginning Balance Less: Uses [1] Plus: Additions En dine Balance mmum arget - ztance' lays 0 Construction Fund Mkt Meter Charge $6.00 wfth 527.50 10 CCF ocreunptbn Winter 54,233,674 1,361,250 0 52,872.424 32,872,424 0 120,770 $2,993,194 4, 52,993,194 0 152,397 53,145,591 53,145,591 0 161,415 $3,307,006 $3,307,008 0 192,555 33,499,561 53,499,561 0 249,708 $3,749,269 53,749,269 0 Fkd payment To Fad 103 -'04 442,060 34,191,329 ,48 Beginning Construction Reserve Balance Plus: To Construction Fund Investment lnterest Less: Uses of Funds Ending Construction Reserve Balance2 Minimum Target level : Average Annual Capital Revenue Bond Fund $278,000 0 2,780 0 $280,780 5280,780 0 2,808 0 $283,588 $587,395 $283,588 0 2,836 0 5288,424 $595,754 3286,424 0 4,296 0 $290,720 $595,754 $290,720 0 4,381 0 3295,081 $595,754 3295,081 $299,507 0 0 - 4,426 4,493 0 0 3299,507 5304,000 5595,754 $595,754 Beginning Fund Balance Plus: To Revenue Bond Fund Investment Interest Less: Uses of Funds Ending Revenue Bond Fund Balance $0 465,000 225,604 0 5690,604 3690,604 0 13,812 0 5704,416 5704,416 0 14,088 0 3718,504 5718,504 0 21,555 0 5740,060 $740,060 0 22,202 0 $762,281 $762,261 0 22,888 0 $785,129 $785,129 0 23,554 04 Budget; As Inv Int 0 5808,683 Bond Reserve Beginning Band Reserve Balance Plus: To Bond Reserve Investment Interest Less: Uses of Funds Ending Bond Reserve Balance 5577,587 0 5,748 0 $583,335 3583,335 0 5,805 0 $589,140 $589,140 0 5.863 0 $595.003 3595,003 0 8,881 0 5803,864 $603,864 0 8,993 0 $612,857 $612,857 0 9,126 0 $821,983 $621,983 0 9,282 As Inv Int 0 $631,245 [1] Includes use of working capital reserve for capital improvements. 2004 also includes $100.000 transfer of funds to the Street Fund for final payment on interfund loan. [2] Minimum construction reserve level should be equal to average annual capital expenditures. Tukwila RR>de Preliminary Oran 2/188005 • APPENDIX V SEPA CHECKLIST • • IP DRAFT FINAL SEPA ENVIRONMENTAL CHECKLIST A. BACKGROUND 1. Name of proposed project, if applicable: City of Tukwila 2005 Water System Plan Update 2. Name of applicant: City of Tukwila 3. Address and phone number of applicant and contact person: Jim Morrow, Director Tukwila Public Works Department 6300 Southcenter Boulevard Tukwila, WA 98188 (206) 443 -0179 • 4. Date checklist prepared: • February 17, 2005 5. Agency requesting checklist: City of Tukwila Public Utilities Department 6. Proposed timing or schedule (including phasing, if applicable): The City of Tukwila Water System Plan Update (WSP) discusses planning considerations, existing system condition, operation and maintenance standards for the City, and recommended improvements to meet future water demands in Tukwila's water service area. The six -year and twenty -year Capital Improvement Plan (CIP) presented in the WSP consist mainly of physical system improvement projects. The physical projects outlined improve the City's ability to provide a sufficient quantity of water at optimum quality. Projects are defined by time period projected with the projected, estimated costs associated with each project. However, CIP projects listed in the WSP should not be viewed as a commitment by the City to implement each project as it is planned with the rate and schedule shown. Actual project implementation will be based on environmental review, permits and approvals, available funding, and scheduling requirements. This WSP is a non- • • project action. A separate Washington State Environmental Policy Act (SEPA) review will be completed prior to actual implementation and construction of each specific project. Certain categorical exemptions from the SEPA review process may apply to specific projects, in accordance with WAC 197 -11 -800 under part nine of the SEPA rules. 7. Do you have any plans for future additions, expansion, or further activity related to or connected with this proposal? If yes, explain. A new WSP update will be required in six years. At that time, projects that are beyond the six -year planning horizon will be updated. As noted above, projects scheduled in the CIP in the next six years will have a SEPA review conducted as part of each individual project. 8. List any environmental information you know about that has been prepared, or will be prepared, directly related to this proposal. Please refer to the WSP for a description of environmental information relevant to each specific CIP project. 9. Do you know whether applications are pending for governmental approvals of other proposals directly affecting the property covered by your proposal? If yes, explain. Development within the City's water service area will continue throughout the life of this plan and is consistent with the King County and City of Tukwila's planning policies, the Urban Growth Boundary, and other environmental regulations including the Endangered Species Act. 10. List any government approvals or permits that will be needed for your proposal, if known. Does Not Apply 11. Give brief, complete description of your proposal, including the proposed uses and the size of the project and site. There are several questions later in this checklist that ask you to describe certain aspects of your proposal. You do not need to repeat those answers on this page. (Lead agencies may modify this form to include additional specific information on project description.) The WSP is a non - project action. Specific projects cited in the WSP will have a separate SEPA review where necessary. 12. Location of the proposal. Give sufficient information for a person to understand the precise location of your proposed project, including a street address, if any, and section, township, and range, if known. If a proposal would occur over a range of area, provide the range or boundaries of the site(s). Provide a legal description, site plan, vicinity map, and topographic map, if reasonably available. While you should submit any plans • 1 • required by the agency, you are not required to duplicate maps or detailed plans submitted with any permit applications related to this checklist. Does Not Apply B. ENVIRONMENTAL ELEMENTS 1. Earth a. General description of the site (circle one): Flat, rolling, hilly, steep slopes, mountainous, other. Does Not Apply b. What is the steepest slope on the site (approximate percent slope)? Does Not Apply c. What general types of soils are found on the site (for example, clay, sand, gravel, peat, muck)? If you know the classification of agricultural soils, specify them and note any prime farmland. Does Not Apply d. Are there surface indications or history of unstable soils in the immediate vicinity? If so, describe. Does Not Apply e. Describe the purpose, type, and approximate quantities of any filling or grading proposed. Indicate source of fill. Does Not Apply f. Could erosion occur as a result of clearing, construction, or use? If so, generally describe. Does Not Apply 3 g. About what percent of the site will be covered with impervious surfaces after project construction (for example, asphalt or buildings)? Does Not Apply h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any Does Not Apply 2. Air a. What types of emissions to the air would result from the proposal (i.e., dust, automobile, odors, industrial wood smoke) during construction and when the project is completed? If any, generally describe and give approximate quantities if known. Does Not Apply b. Are there any off -site sources of emissions or odor that may affect your proposal? If so, generally describe. Does Not Apply c. Proposed measures to reduce or control emissions or other impacts to air, if any: Does Not Apply 3. Water a. Surface: (1) Is there any surface water body on or in the immediate vicinity of the site (including year -round and seasonal streams, saltwater, lakes, ponds, wetlands)? If yes, describe type and provide names. If appropriate, state what stream or river it flows into. (2) Does Not Apply Will the project require any work over, in, or adjacent to (within 200 feet) the described waters? If yes, please describe and attach available plans. Does Not Apply 4 • • • (3) • • • • Estimate the amount of fill and dredge material that would be placed in or removed from surface water or wetlands and indicate the area of the site that would be affected. Indicate the source of fill material. Does Not Apply (4) Will the proposal require surface water withdrawals or diversions? Give general description, purpose, and approximate quantities if known. (5) The City of Tukwila is not applying for additional water rights in conjunction with this WSP. Does the proposal lie within a 100 -year floodplain? If so, note location on the site plan. Does Not Apply (6) Does the proposal involve any discharges of waste materials to surface waters? If so, describe the type of waste and anticipated volume of discharge. None b. Ground: (1) Will ground water be withdrawn, or will water be discharged to ground water? Give general description, purpose, and approximate quantities if known. The City of Tukwila is not applying for additional water rights in conjunction with this WSP. There are no City water utility operations that involve discharge to groundwaters. (2) Describe waste material that will be discharged into the ground from septic tanks or other sources, if any (for example: Domestic sewage; industrial, containing the following chemicals. . . ; agricultural; etc.). Describe the general size of the system, the number of such systems, the number of houses to be served (if applicable), or the number of animals or humans the system(s) are expected to serve. Does Not Apply 5 • • c. Water runoff (including stormwater): (1) Describe the source of runoff (including storm water) and method of collection and disposal, if any (include quantities, if known). Where will this water flow? Will this water flow into other waters? If so, describe. Does Not Apply (2) Could waste materials enter ground or surface waters? If so, generally describe. Does Not Apply d. Proposed measures to reduce or control surface, ground, and runoff water impacts, if any: Does Not Apply 4. Plants a. Check or circle types of vegetation found on the site: Does Not Apply • deciduous tree: alder, maple, aspen, other evergreen tree: fir, cedar, pine, other shrubs grass pasture crop or grain wet soil plants: cattail, buttercup, bullrush, skunk cabbage, other water plants: water lily, eelgrass, milfoil, other other types of vegetation b. What kind and amount of vegetation will be removed or altered? Does Not Apply c. List threatened or endangered species known to be on or near the site. Does Not Apply d. Proposed landscaping, use of native plants, or other measures to preserve or enhance vegetation on the site, if any: Does Not Apply • • i 5. Animals a. Circle any birds and animals which have been observed on or near the site or are known to be on or near the site: Does Not Apply birds: hawk, heron, eagle, songbirds, other: mammals: deer, bear, elk, beaver, other: fish: bass, salmon, trout, herring, shellfish, other: b. List any threatened or endangered species known to be on or near the site. Does Not Apply c. Is the site part of a migration route? If so, explain. Does Not Apply d. Proposed measures to preserve or enhance wildlife, if any: Does Not Apply 6. Energy and natural resources a. What kinds of energy (electric, natural gas, oil, wood stove, solar) will be used to meet the completed project's energy needs? Describe whether it will be used for heating, manufacturing, etc. Does Not Apply b. Would your project affect the potential use of solar energy by adjacent properties? If so, generally describe. Does Not Apply c. What kinds of energy conservation features are included in the plans of this proposal? List other proposed measures to reduce or control energy impacts, if any: Does Not Apply 7 7. Environmental health • a. Are there any environmental health hazards, including exposure to toxic chemicals, risk of fire and explosion, spill, or hazardous waste that could occur as a result of this proposal? If so, describe. None (1) ! Describe special emergency services that might be required. None (2) Proposed measures to reduce or control environmental health hazards, if any: Does Not Apply b. Noise (1) What types of noise exist in the area which may affect your project (for example: traffic, equipment, operation, other)? Does Not Apply (2) What types and levels of noise would be created by or associated with the project on a short-term or a long -term basis (for example: traffic, construction, operation, other)? Indicate what hours noise would come from the site. I (3) Does Not Apply Proposed measures to reduce or control noise impacts, if any: Does Not Apply 8. Land and shoreline use Items a -1 Do Not Apply to the WSP. a. What is the current use of the site and adjacent properties? b. Has the site been used for agriculture? If so, describe. c. Describe any structures on the site. 8 • • d. Will any structures be demolished? If so, what? e. What is the current zoning classification of the site? f. What is the current comprehensive plan designation of the site? g. If applicable, what is the current shoreline master program designation of the site? h. Has any part of the site been classified as an "environmentally sensitive" area? If so, specify. i. Approximately how manypeople would reside or work in the completed project? j. Approximately how many people would the completed project displace? k. Proposed measures to avoid or reduce displacement impacts, if any: 1. Proposed measures to ensure the proposal is compatible with existing and projected land uses and plans, if any: 9. Housing a. Approximately how many units would be provided, if any? Indicate whether high, middle, or low- income housing. Does Not Apply b. Approximately how many units, if any, would be eliminated? Indicate whether high, middle, or low- income housing. Does Not Apply c. Proposed measures to reduce or control housing impacts, if any: Does Not Apply 10. Aesthetics a. What is the tallest height of any proposed structure(s), not including antennas; what is the principal exterior building material(s) proposed? Does Not Apply b. What views in the immediate vicinity would be altered or obstructed? Does Not Apply c. Proposed measures to reduce or control aesthetic impacts, if any: Does Not Apply 11. Light and glare a. What type of light or glare will the proposal produce? What time of day would it mainly occur? Does Not Apply b. Could light or glare from the finished project be a safety hazard or interfere with views? Does Not Apply c. What existing off -site sources of light or glare may affect your proposal? Does Not Apply d. Proposed measures to reduce or control light and glare impacts, if any: Does Not Apply 12. Recreation a. What designated and informal recreational opportunities are in the immediate vicinity? Does Not Apply b. Would the proposed project displace any existing recreational uses? If so, describe. Does Not Apply c. Proposed measures to reduce or control impacts on recreation, including recreation opportunities to be provided by the project or applicant, if any: Does Not Apply 13. Historic and cultural preservation a. Are there any places or objects listed on, or proposed for, national, state, or local preservation registers known to be on or next to the site? If so, generally describe. Does Not Apply 10 • • b. Generally describe any landmarks or evidence of historic, archaeological, scientific, or cultural importance known to be on or next to the site. Does Not Apply c. Proposed measures to reduce or control impacts, if any: Does Not Apply 14. Transportation a. Identify public streets and highways serving the site, and describe proposed access to the existing street system. Show on site plans, if any. Does Not Apply b. Is site currently served by public transit? If not, what is the approximate distance to the nearest transit stop? Does Not Apply c. How many parking spaces would the completed project have? How many would the project eliminate? Does Not Apply d. Will the proposal require any new roads or streets, or improvements to existing roads or streets, not including driveways? If so, generally describe (indicate whether public or private). Does Not Apply e. Will the project use (or occur in the immediate vicinity of) water, rail, or air transportation? If so, generally describe. Does Not Apply f. How many vehicular trips per day would be generated by the completed project? If known, indicate when peak volumes would occur. Does Not Apply Proposed measures to reduce or control transportation impacts, if any: Does Not Apply g. 15. Public services a. Would the project result in an increased need for public services (for example: fire protection, police protection, health care, schools, other)? If so, generally describe. Does Not Apply b. Proposed measures to reduce or control direct impacts on public services, if any. ' Does Not Apply 16. Utilities a. Circle utilities currently available at the site: Does Not Apply electricity natural gas water refuse service telephone sanitary sewer septic system other b. Describe the utilities that are proposed for the project, the utility providing the service, and the general construction activities on the site or in the immediate vicinity which might be needed. Does Not Apply 12 • • • • C. SIGNATURE The above answers are true and complete to the best of my knowledge. I understand that the lead agency is relying on them to make its decision. Signature: Date Submitted: 13 • • D. SUPPLEMENTAL SHEET FOR NONPROJECT ACTIONS 1. How would the proposal be likely to increase discharge to water; emissions to air; production, storage, or release of toxic or hazardous substances; or production of noise? No, action in the WSP would increase discharges to water; emissions to air; involve the production, storage, or release of toxic or hazardous substances; or produce noise. 2. How would the proposal be likely to affect plants, animals, fish, or marine life? No, action in the WSP would affect plants, animals, fish, or marine life. 3. How would the proposal be likely to deplete energy or natural resources? No action in the WSP would deplete energy or natural resources 4. How would the proposal be likely to use or affect environmentally sensitive areas or areas designated! (or eligible or under study) for governmental protection; such as parks, wilderness', wild and scenic rivers, threatened or endangered species habitat, historic or cultural sites, wetlands, floodplains, or prime farmlands? No action in the WSP would affect environmentally sensitive areas or areas designated (or eligible or under study) for governmental protection. 5. How would the proposal be likely to affect land and shoreline use, including whether it would allow or encourage land or shoreline uses incompatible with existing plans? The WSP is in accordance with the City's and County's General Plans including zoning ordinances. 6. How would the proposal be likely to increase demands on transportation or public services and utilities? No' action in the WSP would increase demands on transportation or public services and utilities 7. Identify, if possible, whether the proposal may conflict with local, state, or federal laws or requirements for the protection of the environment. This WSP follows guidelines of, and has been approved by, the Washington State Department of Health. All; water use, water rights and water treatment are in accordance with the Washington State Department of Health and the Washington State Department of Ecology. 14 APPENDIX W WATER SYSTEM COMPREHENSIVE PLAN CORRESPONDENCE (Intentionally Empty) • APPENDIX X COLIFORM MONITORING PLAN • • • CITY OF TUKWILA MUNICIPAL WATER UTILITY Coliform Monitoring Plan A. SYSTEM INFORMATION City of Tukwila PWS ID # 89500F King County SOURCES: The City of Tukwila receives all of its water through the Cedar Surface Water Supply from Seattle Public Utilities (DOH #S01- ID #77050Y). The water originates in the highly protected Chester Morse Lake and Cedar watershed area. DOH source Number Source Name (Taps, Emergency Interties) #S01 SEATTLE - Three taps on Cedar River Pipeline #4 at Supply Stations 13, 15, and 16; three supply taps on the West Seattle Pipeline at Station 169, 11, and Oxbow; and a tap at Beacon Avenue and South Leo at Supply Station 6. #S02 RENTON (71850L) Emergency Intertie at 17200 West Valley Highway. #S03 KENT (381501) Emergency Intertie on Todd Blvd. at West Valley Highway. #SO4 HIGHLINE (406506) Emergency Intertie at Andover Park West and South 180t Street #S05 KCWD 125 (41998T) Emergency Interties at 131x1 PI. /44t Ave. S.; Interurban Ave. /52nd Ave. S.; Interurban Ave. /South 116th St. STORAGE: The North Hill Reservoir Tank — 2,000,000 - gallon pre- stressed concrete located at 15045 57th Avenue South. TREATMENT: Seattle's Cedar Treatment facility consisting of chlorination, fluoridation, and two new processes, ozonation and ultraviolet light (UV). PRESSURE STATIONS: 1 booster pump station at the North Hill Reservoir & 400 -zone. PRVs at all supply taps and interties, 1 Distribution System PRV at 9649 East Marginal Way South. 1 Distribution System PRV at 4900 South 107th Street. PRESSURE ZONES: Tukwila has 6 pressure zones interconnected and looped with the Cedar supply. The largest 360 -zone covers the CBD, the Interurban Corridor and East Marginal to south Boeing Field. The 400 -zone serves the North Hill residential area. The 380 -zone serves the Crystal Springs neighborhood. The 320 -zone serves Oxbow, E. Marginal Way N. Boeing Field The 490 -zone and 340 -zone serve upper/lower Ryan Hill. Tukwila Coliform Monitoring Plan Page 1 • • POPULATION & CONNECTIONS BY PRESSURE ZONE Population Service Served Connections Central 360 -Zone 3,910 1,700 400 -Zone 1,500 265 380 -Zone 30 13 490 -Zone 200 90 340 -Zone 50 35 320 -Zone 10 46 5,700 2,149 Total Residential Connections: 1130 Total Multi - Family: 166 Total Comm /Industr: 853 Note: Refer to the most recent Water Facilities Inventory (WFI) for the variable non - residential population. B. SAMPLING INFORMATION ROUTINE SAMPLING REQUIRED BY REGULATION: 14 samples per month. A. Routine and Repeat Sample Locations Location/Address.for ; Routine : Sample. Sites. i Location/Address for Repeat Sample Sites. TU-1. = 65th Avenue South,_ : north Southcenter Boulevard 1- 1.65t Avenue South; at :Tukwila; Park, sample stand.. 1 -2. Repeat Upstream - Schneider - Homes/651.0 Southcenter Blvd 1 -3. Repeat Downstream - Tukwila Park Restroom/15300 65th Ave S. TU -2.. = South ;1'2271 ' Street; west of 46th Ave South. 2 -1. South 122nd Street & 46th Av South, sample stand. 2-2. Repeat Upstream - Residence/4622: South 122 "d' Street. 2 -3. Repeat Downstream - Beck Residence /4702. South 122nd Street. Page 2 Tukwila Coliform Monitoring Plan • • TU -3. 1232 Andover:' Park. West' 3 -1. 1232 Andover Park West; sample stand. 3 -2. Repeat Upstream — Home Innovations /1180 Andover Park W. 3 -3. Repeat .Downstream - Dania Furniture /1251 Andover Park W. TU-4. 53`d Ave South, south of 140th Street 3- 1.53`d Ave South & 140' Street, :. sample stand.. 3 -2. Repeat Upstream - Foster Memorial Park Restroom 3-3. Repeat. Downstream - Dickinson Residence/13970 53`4.. *Repeat sample sites are available upstream and downstream of all routine sample sites. * *The North Hill water storage tank can be sampled as necessary. * * *AII sources and supply points can be sampled directly as necessary. When an unsatisfactory sample is received, a set of three repeat samples are required from the following locations: 1.) The same tap as the original unsatisfactory routine sample. 2.) An active service within five active connections upstream from where the original unsatisfactory sample was taken. 3.) An active service within five active connections downstream from where the original unsatisfactory sample was taken. If you cannot sample as outlined above or if any repeat samples are unsatisfactory, contact DOH. Northwest Regional Office — Kent Coliform Program: 253 - 395 -6775 Main Office: 253 - 395 -6750 Tukwila Coliform Monitoring Plan Page 3 C. ROTATION: Biweekly Sampling Rotation Schedule* Monday Tuesday Wednesday Thursday Friday Week 1,2,3 TU -1 TU -2 TU -1 TU -3 TU -4 Week 4 TU -4 TU -2 TU -3 (if needed) *(This cycle repeats every 4 weeks) D. MONTH FOLLOWING UNSATISFACTORY SAMPLE Regulations require a minimum of 5 Routine samples in the month following an unsatisfactory routine sample. Since we collect 14 Routines each month, this requirement is addressed and the routine schedule will be followed. E. PLAN PREPARATION INFORMATION Prepared by: Pat Brodin Prepared on: 31 March 1997 / Updated 22 November 2004 Reviewed by on _ / /. F. MAPS Page 4 Tukwila Coliform Monitoring Plan • • • City of Tukwila RECEIVED NOV 0 3 2005 COMMUNITY DEVELOPMENT 2005 Water System Plan Update February 2005 Adopted by Resolution No. Mayor: Steven Mullet City Council: Pam Carter Joe Duffie David Fenton Jim Haggerton Joan Hernandez Pam Linder Dennis Robertson 10900 NE 4th Street, Suite 1110 mem Bellevue, WA 98004 (425) 452 -8100 • • Participants City of Tukwila Project Manager e. Mike Cusick, P.E. City of Tukwila Contributing Technical Staff A special note of thanks to the many Public Works Staff who committed time and effort in preparation of the 2005 Comprehensive Water System Plan Update: Bob Giberson, Acting City Engineer Pat Brodin, Operations Manager Bryan Still, Water Superintendent Richard Takechi, Department of Finance Consulting HDR/EES Allen Fitz, P.E. Doug Howie, P.E. Kelly O'Rourke Andrew Graham Cil Pierce Arnie Hanson City of Tukwila 2005 Water System Plan Update CERTIFICATION This 2005 Water System Plan Update for the City of Tukwila has been prepared under the direction of the following Registered Professional Engineers. • Allen Fitz, P.E. HDR/EES 500 108th Avenue NE, Suite 1200 Bellevue, WA 98004 (425) 450 -6223 • EXPIRES 03 -01 -06 Doug Howie, P.E. HDR/EES 626 Columbia Street NW, #2A Olympia, WA 98507 (360) 352 -5090 • • • Contents 1 Introduction 1.1 Objective 1 -1 1.2 Scope of Work 1 -1 1.3 Planning Period 1 -2 1.4 Overview of Existing System 1 -2 2 Description of Water System 2.1 Ownership and Management 2 -1 2.2 Service Area Description 2 -1 2.3 Source of Supply 2 -2 2.4 Pressure Zones 2 -6 2.5 Major Facilities 2 -7 2.6 PRVs and Critical Valving 2 -10 2.7 Control/Telemetry 2 -11 2.8 Adjacent Purveyors 2 -11 2.9 System Interties 2 -13 3 Related Plans, Policies and Agreements 3.1 Land Use and Other General Policies 3 -1 3.2 Supply Agreements 3 -5 3.3 Intertie Agreements 3 -6 4 Planning Data and Demand 4.1 Customer Categories and Characteristics 4 -1 4.2 Demographics — Existing and Projected 4 -2 4.3 Potable Water 4 -3 4.4 Reclaimed Water 4 -14 4.5 Raw Water Demand 4 -16 4.6 Relationship Between Potable, Reclaimed, and Raw Water Demand 4 -16 5 Conservation Program 5.1 Conservation Objectives 5 -1 5.2 Compliance with Conservation Planning Requirements 5 -1 5.3 Water Conservation History 5 -3 5.4 Effects of Conservation on System Demand 5 -5 Contents City of Tukwila 6 Water Rights, Source of Supply and System Reliability 6.1 Water Rights 6 -1 6.2 Source of Supply Analysis 6 -2 6.3 Water System Reliability 6 -4 7 System Analysis 7.1 Hydraulic Analysis 7 -1 7.2 Storage Analysis 7 -10 7.3 Source Analysis 7 -10 Drinking Water Quality Compliance and Monitoring 8.1 Introduction 8 -1 8.2 Compliance with Drinking Water Regulations 8 -2 8.3 Anticipated Future Regulations 8 -6 8.4 Water Quality Complaints 8 -7 8.5 Consumer Confidence Reports 8 -7 8.6 Summary of Regulatory Status and Monitoring Requirements 8 -8 9 Operations and Maintenance 9.1 Introduction 9 -1 9.2 Organization Structure and Responsibilities 9 -1 9.3 Operator Certification 9 -4 9.4 System Operation and Control 9 -4 9.5 Maintenance 9 -7 9.6 Emergency Response Operations 9 -10 9.7 Safety 9 -10 9.8 Design and Construction Standards and Specifications 9 -11 9.9 Water Quality Operations 9 -11 9.10 Supplies and Equipment 9 -13 9.11 Recordkeeping and Reporting 9 -14 9.12 O &M Improvements 9 -14 10 Capital Improvement Plan 10.1 Identification of Recommended System Improvements 10 -1 10.2 Improvements 10 -1 11 Financial Plan 11.1 Introduction 11 -1 11.2 Past Financial History 11 -1 11.3 Development of the Financial Plan (Revenue Requirement). 11 -2 11.4 Summary of Financial Projections 11 -8 11.5 Reserve Levels 11 -9 11.6 Review of the Existing Water Rates 11 -10 11.7 Overview of Future Water Rates 11 -12 11.8 Neighboring Utility Rate Comparison 11 -12 11.9 Summary 11 -13 Fa(I /Kees Contents Ci ty y of Tukwila • • • Tables 1 -1 Tukwila Water System at a Glance (Year 2003) 1 -2 2 -1 Supply Stations, Source, and Locations 2 -8 2 -2 Summary of Main Sizes and Approximate Lengths 2 -10 2 -3 Summary of Pipe Materials and Approximate Lengths 2 -10 2 -4 Tukwila PRVs 2 -11 3 -1 Zoning Designations 3 -2 4 -1 Connections and Potable Water Sold by Customer Category 4 -2 4 -2 Current and Future Demographics 4 -3 4 -3 Purchased Potable Water 2000 -2003 Average (gpd) 4 -4 4 -4 Potable Water Purchases and Annual Change 2000 -2003 (gpd) 4 -5 4 -5 Potable Water Sales 1999 -2003 Average (gpd) 4 -6 4 -6 Potable Water Sales and Annual Change 1999 -2003 (gpd) 4 -7 4 -7 Largest Potable Water Customers 4 -8 4 -8 Potable Water Sales of 2003's 10 Largest Customers (gpd) 4 -8 4 -9 Peaking Factor 4 -9 4 -10 Non - Revenue Potable Water (gpd) 4 -10 4 -11 Potable Water Balance 2003 4 -10 4 -12 Unbilled Unmetered Consumption for 2003 Potable Water Balance (gpd) 4 -11 4 -13 Potable Water Projected Demand 4 -12 4 -14 Purchased Reclaimed Water 1998 -2003 Average (gpd) 4 -15 5 -1 Conservation Requirements for Public Water Systems Serving 1,000- 25,000 Connections 5 -2 5 -2 Conservation Programs Offered Through Seattle's 2003 1% Program 5 -4 6 -1 Water Rights Status 6 -2 7 -1 Largest Potable Water Customers 7 -2 7 -2 Potable Water Projected Demand by Pressure Zone 7 -3 7 -3 City of Tukwila — Calibration Data 7 -5 7 -4 Fire Flow Requirements 7 -7 8 -1 Drinking Water Quality Requirements and Compliance Responsibilities 8 -1 8 -2 Tukwila's Total Coliform Monitoring Locations 8 -3 8 -3 2002 Lead and Copper Monitoring Results 8 -5 8 -4 Stage 1 DBP Rule MCLs 8 -6 8 -5 Proposed Drinking Water Regulations 8 -7 8 -6 Summary of Regulations and Compliance Status 8 -8 8 -7 Summary of Existing Monitoring Requirements 8 -10 Contents III City of Tukwila • • 9 -1 Water Utility Personnel Certification 9 -4 9 -2 Major Tukwila Water Facilities 9 -5 10 -1 Recommended Capital Improvements 10 -2 11 -1 Water System Financial History 11 -2 11 -2 Finding Agency Contacts 11 -5 11 -3 Summary of the City's Projected Six-Year Financial Plan 11 -8 11 -4 Overview of the City's Current Water Rates 11 -10 11 -5 Example of the Development of Fixed Meter Charges Based Upon Meter Capacity11 -11 • Z I �S Contents iv City of Tukwila • • 9 -1 Tukwila Public Works Department — Water Utility Organization 9 -2 Exhibits 2 -1 Current and Future Water System Service Area 2 -3 2 -2 Tukwila Neighborhoods 2 -4 2 -3 Regional Supply Setting 2 -5 2 -4 Pressure Zones, Major Facilities & Interties 2 -9 3 -1 Water System Plan Zoning 3 -4 4 -1 Monthly Distribution of Purchased Potable Water 4 -4 4 -2 Potable Water Purchased by Area 4 -5 4 -3 Monthly Distribution of Potable Water Sales 1999 -2003 Average (gpd) 4 -6 4 -4 Potable Water Sales by Customer (1999 -2003 Average) 4 -7 4 -5 Monthly Distribution of Potable Water Sales for 2003's 10 Largest Customers 4 -9 4 -6 Potable Water Demand (ADD gpd) 4 -13 4 -7 Monthly Distribution of Purchased Reclaimed Water (2001 -2003 Average;gpd) 4 -16 4 -8 Reclaimed Water Demand 4 -17 7 -1 City of Tukwila's Diurnal Curve Based on 1991 WSP 7 -7 • 10 -1 Capital Improvement Projects 10 -4 L� ��S Contents �� � h 1 City of Tukwila • • • Section 1 Introduction The City of Tukwila is required to develop a Water System Plan (WSP), and update it every six years, according to Chapter 246 - 290 -100 Washington Administrative Code (WAC). The plan is approved by the Mayor, adopted by the City Council, and administered by the Public Works Director. 1.1 Objective The objective of this WSP is to evaluate the existing water system and its operation to: • Identify present and future needs • Set forth the means for addressing those needs, and • Demonstrate that the system has the operational, technical, managerial, and financial capability to achieve and maintain compliance with all relevant local, state and federal plans and regulations. All anticipated water system projects should be identified in the Capital Improvement Program portion of the WSP. Information contained in the WSP should be referenced when proposing new facilities or modifications to new facilities. 1.2 Scope of Work The scope of work as requested by the City of Tukwila and required by the Department of Health (DOH) includes the following tasks: • Collect and update basic planning data related to land use, population, and water demand. • Perform a system analysis based on existing standards, hydraulic capabilities, and water quality. • Develop an improvement plan to correct existing and projected system deficiencies, including a schedule and financial program. • Update and document the City's operations and maintenance program, cross connection control program, water quality monitoring, and regulatory compliance program. • Document the City's design, and construction standards. • Provide SEPA checklist, water resource agreements, and other supporting documents. The 1999 Comprehensive Water Plan was used as a basis for this WSP update. DOH's Plan Content Checklist from its Water System Planning Handbook is included in Appendix A. Similarly, several DOH forms related to its Municipal Water Law Interim Planning Guidance For Water System Plan / Small Water System Management Program Approvals document are found in the appendix. Appendix B is Attachment 2 General Approval Checklist. Appendix C is Attachment 5 Consistency Statement Checklist. KR I Introduction 1 -1 i City 0 Tukwila • 1.3 Planning Period A 20 -year planning period, beginning in 2005, has been analyzed for the Tukwila water system. Key years in the WSP are as follows: • 2005 • 2002 • 2010 • 2024 First year of the WSP planning period. First year of the financial analysis planning period (corresponding to the most recent City of Tukwila Rate Study). Sixth year of the WSP planning period. End of WSP planning period. 1.4 Overview of Existing System The City of Tukwila's service area is currently supplied primarily from the City of Seattle's water system through a purveyor contract with Cascade Water Alliance. Nearly all of the water is drawn from the Cedar River Watershed through the 60 -inch Cedar River Pipeline No. 4 in the south and the 48 -inch West Seattle supply line in the north. Combined, these sources provided approximately 2.24 MGD in 2003. Water is distributed to customers via approximately 45 miles of water pipe varying in size up to 18 inches in diameter. One reservoir and one booster station are available to provide storage and control pressures within the system. A summary of the Tukwila water system is provided in Table 1 -1. A map showing the location of Tukwila within the regional supply setting is provided as Exhibit 2 -2, within Section 2, System Description. Detailed descriptions, inventories and Exhibits are provided in Section 2. The City also receives reclaimed water for irrigation purposes through a contract with King County. The City .also has a Green River surface water right currently used for golf course watering, although the City expects to augment this raw water with reclaimed water in the future. Table 1 -1 Tukwila Water System at a Glance (Year 20031) Sources of Supply. Average/Max Day Demand Cedar River Pipeline No 4 and West Seattle Pipeline 1,904,363 gpd ADD 3,085,068 gpd MDD (based on 1.72 peaking factor) Number of Connections 2,154 Demographics Served' 1,200 Single Family Households 2,049 Multifamily Households 41,017 Employees Approximate Miles of Pipe 45 miles Number of Storage Facilities 1 Reservoir Number of Booster Pump Stations 1 Number of Pressure Reducing/Pressure Sustaining Valves 8 PRV/ 2 PSV Number of Pressure Zones 6 I Demographics served are estimates for year 2005. Introduction 11-M I glees City of Tukwila 1 -2 • • • • Section 2 Description of Water System This chapter provides basic information about the physical components of the water system and a brief overview of selected administrative and planning issues related to operations and future expansion. It provides important background information on which the comprehensive program, described by this WSP, is partially based. 2.1 Ownership and Management The Tukwila water system is owned and operated by the City of Tukwila. The most current Water Facilities Inventory (WFI) report is attached in Appendix D. The WFI contains basic administrative information regarding the water system. The water system is operated and maintained by the Department of Public Works which is managed by the Public Works Director. Several divisions exist within the organization overall and address various facilities and services. There are two divisions associated with the water system and its operation. These divisions are managed by the Maintenance Operations Manager and by the City Engineer, both of whom report directly to the Public Works Director. The Water Superintendent, who reports to the Maintenance Operations Manager, is responsible for the maintenance and operations of the water system, while the Utility Systems Engineer, who reports to the City Engineer, is responsible for implementing capital improvements. Additional detail and management structure is provided in the Operations and Maintenance section of the WSP. 2.2 Service Area Description The City of Tukwila is bounded by the City of Seatac on the west, the City of Seattle on the north, the City of Renton on the east, and the City of Kent on the south. Tukwila's current and future service area, city boundary, and other adjacent purveyor service areas are shown in Exhibit 2 -1. Additional detail about adjacent purveyors is provided later in this chapter. Exhibit 2 -2 provides neighborhood names, which are referred to in various sections of this water system plan. Currently, the City provides water for the majority of the area within the city boundary. Water for the remaining area within the city boundary is provided by King County Water District (KCWD) 125, Highline Water District, the City of Renton, and KCWD 20. In the future, the City's . service area will add five new areas in accordance with the City's Comprehensive Plan which directs the City to provide water service to the entire area within the city boundary. This entails assuming service for areas within the city boundary, but currently serviced by another utility. It also entails assuming service for Potential Annexation Areas (PAAs) which are not currently within the city boundary, but are anticipated to be annexed. The precise timing of adding these new service areas is dependent on a variety of factors and is not Fa( I glees Description of Water System 2 -1 City of Tukwila fully known. Timing assumptions have been made for this WSP based on the best available estimates from the City. The five new areas include: • Central City Areas (2): taken over primarily from KCWD 125; begins in 2010. • SW City Corner: taken over from Highline; begins in 2010. • SE City Corner: taken over from Renton; begins in 2015. • South Annex: taken over primarily from Highline; begins in 2015. • West City Area: taken over primarily from KCWD 125; begins in 2020. The topography of the service area ranges from lowlands surrounding the Green/Duwamish River valley to plateaus above the river valley walls with slope steepness between 15 and 70 percent. Service area elevation begins at sea level and ranges to over 400 feet, creating the need for many pressure zones within Tukwila's service area. 2.3 Source of Supply The Tukwila water system was first established in 1929 and constructed a six -inch diameter steel water line to connect Seattle's Beacon Hill to Tukwila's North Hill area. Up to that time, drinking water was supplied by several groundwater wells and the Green River. As the City annexed land in the' 1950's and early 1960's, and later in the late 1980's, the City also began to take over some of the water services for areas within the City limits from other water districts • and public utilities. Today, the City is served primarily by the Tukwila water system, and also by KCWD 125, Highline Water District and the City of Renton. A map showing the location of Tukwila within the regional supply setting is provided as Exhibit 2 -3. Primary sources are those that provide water during normal operating conditions. Secondary sources are intended for use in the event of emergencies, high demand, or when primary sources are off -line. As of January 1, 2004 Tukwila's primary and secondary sources of water are supplied mostly by the Cascade Water Alliance (Cascade). Cascade, formed in April 1999, is a group of eight municipal water utilities and districts formed to provide water supply for the current and future demands of the utilities and districts involved. Cascade currently receives most of its water from the City of Seattle under a declining block contract, with the first block of 30.3 mgd extending through December 31, 2023. More details on Tukwila's supply agreement with Cascade, as well as Cascade's contract with Seattle, is described in Section 3.2.1. Two additional sources of water used by the City for irrigation purposes only are reclaimed water through a contract with King County, and water from the Green River currently used only at the Foster Golf Links golf course. • Description of Water System 2 -2 HZ 1 ilmes City of Tukwila • 0 0 0 0 0 0 N • w 7 H L 0 0 I WW V • <EES_OLY>: PLOT DATE: 02/17/05 TIME: 12:47 • Seattle City of Tukwila • King County KCWD 20 Central City Areas (2) West City Area - - KCWD 125 Renton p05 SE City Corner SW City Corner Legend City of Tukwila Boundary • Existing Tukwila Service Area Future Tukwila Service Area Within 6 years Potential Tukwila Service Area (From 7 - 20 years) Highline South Annex 0 4000 8000 SCALE IN FEET Fit EXHIBIT 2 -1 City of Tukwila Water System Plan Current & Future Water System Service Area February 2005 1 Ines EXHIBIT 2-2 City of Tukwila Water System Plan Tukwila Neighborhoods • • Toll River Municipal Watershed King County City of Tukwila Legend 0 Gty of TuMrlle Existing pipeline 20000 40000 � I SCALE IN FEET EXHIBIT 2 -3 City of Tukwila Water System Plan Regional Supply Setting February 2005 I aces • • • 2.3.1 Cedar River and West Seattle Pipelines The source of Tukwila's primary and secondary water is the Cedar River. Raw water is diverted from the Cedar River at Landsburg, where it is screened, chlorinated, and fluoridated before being sent to Lake Youngs. At the Lake Youngs regulating basin, located east of Renton, water is disinfected via ozonation and uv, treated with lime to adjust pH levels for corrosion control, and chlorinated for further disinfection prior to customer delivery. The water is then transmitted to the Puget Sound area via four high pressured transmission mains, known as the Cedar River Pipelines. 2.3.2 Reclaimed Water Tukwila receives reclaimed water from King County's Renton wastewater treatment plant. Reclaimed water is defined by RCW 90.46 as "effluent derived in any part from sewage from a wastewater treatment system that has been adequately and reliably treated, so that as a result of that treatment, it is suitable for a beneficial use or a controlled use that would not otherwise occur and is no longer considered wastewater ". This reclaimed water is currently used to irrigate ball fields and streetscapes. Tukwila is planning to use reclaimed water to irrigate Foster Golf Links, its public golf course, in the future. 2.3.3 Green River Tukwila has a surface water right on the Green River. This untreated water is currently used to irrigate Foster Golf Links; however, the City is planning to use reclaimed water to augment this irrigation in the future. 2.4 Pressure Zones The service area is divided into six pressure zones. The zones are labeled according to the elevation, relative to mean sea level, of the static pressure head in each zone. The zone boundaries are located to provide a service pressure range of 60 to 155 psi under maximum and average day demand conditions. Zone boundaries are shown in Exhibit 2 -4 and include the following: • 360 Zone — City Zone • 320 Zone - North Boeing Field Zone • 380 Zone — Crystal Springs Zone • 400 Zone — North Hill Zone • 465 Zone — Upper Ryan Hill Zone • 340 Zone — Lower Ryan Hill Zone The 360 City Zone is the largest pressure zone in the City that extends from the southern City limit to the South Norfolk Road at the south end of Boeing Field/King County International Airport, and includes the City's Central Business District. This zone is supplied through five supply stations where the water flow from the source point is metered, and the water pressure reduced through pressure reducing valves (PRVs). Supply stations SS 10 and SS 11 are located in Description of Water System 2 -6 gmes City of Tukwila • • the north and tap from the West Seattle Pipeline, while supply stations SS 13, SS 14 and SS 15 are located in the south and tap from the Cedar River Pipeline No. 4. The 320 North Boeing Field Zone is located at the north end of the City, from north of South Norfolk Road to the northern City limit. This zone is supplied by the 360 City Zone through a PRV. The 380 Crystal Springs Zone is located in a small area directly south -west of the I -5 and Highway 518/1 -405 junction. This zone is supplied through a PRV from supply station SS 16 that taps from the Cedar River Pipeline No. 4. This zone is isolated from the main 360 Zone with a one -way check valve. The 400 North Hill Zone is located north -east of the 380 Crystal Springs Zone, directly north- east of the I -5 and Highway 518/1 -405 junction. This zone is supplied by the North Hill Pump Station, which pumps from the North Hill Reservoir. • The 465 Upper Ryan Hill Zone is located on the north -east section of the City and is approximately bounded by 49th Avenue South to the west, the City limit to the north, 51st Avenue South to the east, and I -5 to the south. This zone is supplied directly from supply station SS 169, and feeds the 340 Lower Ryan Hill Zone. The 340 Lower Ryan Hill Zone is located directly west of the 465 Upper Ryan Hill Zone and is approximately bounded by 1 -5 to the west, the City limit to the north, 49th Avenue South to the east, and I -5 to the south. 2.5 Major Facilities 1 The Tukwila water system consists of eight primary supply stations, two secondary supply interties, one storage reservoir, one booster -pump station, about 45 miles of transmission and distribution pipelines, and many valves and other appurtenances. Exhibit 2 -4 shows the location of the major facilities discussed below. 2.5.1 Supply Stations Tukwila's water supply system is served entirely through eight supply taps on Seattle's transmission mains through PRVs to decrease pressures from the mains. Four of the supply taps are off the Cedar River Pipeline No. 4 (CRPL 4), which runs through the southern portion of the City. Three supply taps are off the West Seattle Pipeline that branches off from CRPL 3 just east of Tukwila and runs through the northern portion of the City. The remaining supply tap is off the CRPL 3. Tukwila also has two emergency interties with the City of Seattle. One is on East Marginal Way South at the northern boundary of the City and the other is at 47th Ave South and Victor Street. The supply stations and locations are shown in Table 2 -1. • Z 1 Description of Water System 2 -7 City of Tukwila • • Table 2 -1 Supply Stations, Source, and Locations Supply Station Source Location SS 169 CRPL 3 Beacon Ave. S. & S. Leo St. SS 10 WSPL E. Marginal Way & S. 112`h St. SS 11 WSPL 44th Ave. S. & S. 115`h St. Oxbow WSPL ,10190 W. Marginal Way SS 13 CRPL 4 Southcenter Parkway & Tukwila Parkway SS 14 CRPL 4 West Valley Highway & S. 158"' St. SS 15 CRPL 4 Christensen Rd. & Black Dr. SS 16 CRPL 4 S. 158th St. & 53'h Ave. S. Emergency Seattle Intertie E. Marginal Way at north City limit Emergency Seattle Intertie 47th Ave S. and Victor St 2.5.2 Storage Facility The Tukwila water system currently operates 2 million gallons (MG) of storage at the North Hill Reservoir. The reservoir is the sole storage facility for the City. The North Hill Reservoir is a concrete reservoir constructed in 1991 that operates at the nominal water surface elevation of 250 feet mean sea level (MSL). The reservoir is supplied primarily by Supply Station 13, which taps off of CRPL 4. 2.5.3 Pump Stations Tukwila operates a single booster pump station with two sets of pumps configured to pump to two separate pressure zones and a high capacity fire flow pump. The two High pumps are regulated by 30 hp electric motors with variable frequency drives (VFD) and deliver up to 480 gpm each to the North Hill 400 Zone. The two Low pumps are driven by 50 hp electric motors and deliver 1050 gpm each to the main 360 Zone during high demand periods only. The, fire flow pump is driven by a 250 hp motor and designed to pump 4,000 gpm into either zone if the fire demands exceed the capacity of either zone. Description of Water System 2-8 FIR I dims City of Tukwila • • EES_OLY> M: \TUKWILA \3 -04- 113 \EXHIBITS \TUKWILA PRESSURE ZONES.DWG <EXHIBIT> • Pressure Zone 320 0 SEATTLE INTERTIE (boundary) OXBOW SUPPLY STATION SUPPLY STATION 10 • City of Tukwila King County Pressure Zone 340 SEATTLE INTERTIE (47th & Victor) SUPPLY STATION 11 Pressure Zone 360 Pressure Zone 465 SUPPLY STATION 169 KCWD 125 INTERTIE (Duwamish) KCWD 125 INTERTIE (131st PI.) KCWD 125 INTERTIE (Park & Ride) NORTH HILL PUMP STATION & RESERVOIR Pressure Zone 360 Legend • • City of Tukwila Boundary Pressure Zones 320 340 360 380 400 465 SUPPLY STATION 15 KCWD 125 INTERTIE (S. 144th St.) Pressure Zone 400 Pressure Zone h_380 /rI SUPPLY STATION 16 SUPPLY STATION 13 HIGHLINE WATER DISTRICT INTERTIE KENT INTERTIE 4000 8000 SCALE IN FEET SUPPLY STATION 14 RENTON INTERTIE EXHIBIT 2 -4 City of Tukwila Water System Plan Pressure Zones, Major Facilities & Interties February 2005 �� � gees 2.5.4 Transmission and Distribution Mains Transmission mains convey the water from the sources to the distribution system and storage. In Tukwila, transmission mains are generally 8 -inch to 12 -inch mains in residential zones and 10- inch to 18 -inch in non - residential zones. Many of the system transmission mains are restricted by control valves at the pressure zone boundaries. Distribution mains are typically 8 -inch and smaller. The current City standard minimum distribution main size is 8 -inch in residential zones and 12 -inch in non - residential zones. Smaller pipes exist in the system from previous standards and from areas where mains were taken over from other districts, in particular the Allentown area which was formerly KCWD 25. Tukwila's transmission and distribution systems consist of approximately 238,584 feet or 45 miles of pipes. The majority of the mains is comprised of ductile iron and cast iron pipe. Tables 2 -2 and 2 -3 summarize the system's piping according to main size, materials and total length. Table 2 -2 Summary of Main Sizes and Approximate Lengths Main Size ' Approx. Length (ft) . . 2" 5,133 4" 1,722 6" 33,412 8" 80,089 10" 42,297 12" 56,668 16" 5,272 18" 14,291 Total 238,884 Table 2 -3 Summary of Pipe Materials and Approximate Lengths Pipe Material Approx. Length (ft PVC Main 5,255 Steel Main . 2,062 Cast Iron 134,491 Ductile Iron 96,776 Asbestos Cement 300 Total 238,884 2.6 PRVs and Critical Valving • The City of Tukwila uses pressure reducing valves (PRVs) and check valves to maintain adequate system pressures, direct flow in the system, and isolate the various pressure zones. Description of Water System City of Tukwila 2 -10 PRVs are also used at interties. The system contains 9 PRVs and 11 check valves. Table 2 -4 summarizes the type, size, and location of system PRVs and critical valves. Table 2 -4 Tukwila PRVs Location Zone Valve Description Continent E. Marginal Way & S. 112t St. 360 16" PRV Active supply from SS 10 E. Marginal Way & S. Norfolk St. 320 16" PRV Active Running 44th Ave. S. & S. 115`h St. 360 8" PRV Active supply from SS 11 Southcenter Parkway, & Tukwila Parkway 360 12" PRV Active supply from SS 13 West Valley Highway & S. 158th St. 360 8" PRV Active supply from SS 14 Christensen Rd. & Black Dr. 360 8" PRV Active supply from SS 15 S. 158t St. & 53rd Ave. S. 380 6" PRV Active supply from SS 16 S. 107th St. & 49th Ave. S. 340 8" PRV Active Running E. Marginal Way at north City limit 320 12" PRV Emergency 47th Ave S. and Victor St 340 8" PRV Emergency 62 "d / 151st 400 8" Check Valve 55th 400 6" Check Valve Sunwood / 62nd 400 8" Check Valve Sunwood / Behind 400 8" Check Valve 149t / 60th 400 6" Check Valve 144th / 59th 400 6" Check Valve 58th 400 6" Check Valve 57th / 144th 400 10" Check Valve 144t / 57th 400 6" Check Valve 56th / 141st 400 6" Check Valve 144t East of 53rd 400 6" Check Valve 150th 400 8" Check Valve 152nd 400 6 Check Valve Klickitat 380 8" Check Valve 2.7 Control /Telemetry The water system has a SCADA telemetry control panel at the City's Maintenance Facility on Minkler Boulevard that monitors reservoir levels, and controls the supply station valves at SS 10, 13 and 15. A separate control system that is not linked to the distribution control system is installed at the reservoir pump station. This system monitors and responds to pressure variations in the distribution system and transmits analog signals back to the control panel at the City's Maintenance Facility. Detailed facility - specific telemetry capabilities are included in the Operations and Maintenance section of this Water System Plan. 2.8 Adjacent Purveyors The Tukwila service area shares a common boundary with seven adjacent purveyors. Growth and regionalization of water supply has prompted coordination and cooperation among purveyors. Exhibit 2 -1 shows the service areas of Tukwila and adjacent purveyors. 1 Description of Water System 2 -11 LD R City of Tukwila s • • 2.8.1 City of Seattle The Seattle service area is located west of the Duwamish River around the north end of Tukwila, north of the. City's limit, and also east of the Ryan Hill area of Tukwila. In addition to its own service area, the Seattle water system also provides wholesale water to Cascade members, Highline Water District, Water District No. 20, Water. District No. 125, Skyway Water and Sewer District, and several other cities, water districts and water associations. 2.8.2 King County Water District No. 20 The King County Water District (KCWD) No. 20 is supplied by the City of Seattle through a wholesale purveyor contract. The KCWD 20 service area boundary borders the western boundary of the City of Tukwila south of the City of Seattle service area, along 27th Ave. S. to approximately S. 133`d St. There is a small portion of the KCWD 20 service area within Tukwila's city limits. No interlocal agreement for interties and water purchase exists between KDWD 20 and Tukwila. 2.8.3 King County Water District No. 125 The KCWD 125 is supplied by the City of Seattle through a wholesale purveyor contract. It is located west of Highway 599 and I -5 and also just east of Tukwila within Skyway. KCWD 125 serves customers within Tukwila's city limits in the Riverton and Foster areas, and also customers within Seatac and Seattle city limits. Four interties exist between KCWD 125 and the Tukwila system in the Duwamish, Allentown and Foster areas of Tukwila. 2.8.4 Skyway Water and Sewer District The area served by Skyway Water and Sewer District is just east of Tukwila between the Cities of Seattle and Renton and is supplied by the City of Seattle through a wholesale purveyor contract. No interlocal agreement for interties and water purchases exists between Skyway Water and Sewer District and Tukwila. 2.8.5 Highline Water District The Highline Water District is supplied by the City of Seattle through a wholesale purveyor contract. Highline serves customers within Tukwila's city limits in the Segale Park area and the Crystal Springs area in the south -west portion of the City. One intertie exists between Highline and the Tukwila system at the southern end of the City in the Segale Park area. 2.8.6 City of Renton The City of Renton is supplied by their own groundwater wells. Renton serves some commercial customers within Tukwila's city limits in the south -east corner of the City. The City of Tukwila service boundary is contiguous with the City of Renton water service boundary. An interlocal agreement for interties and emergency water purchase exists between Renton and Tukwila. Description of Water System 2-12 FZ City of Tukwila 2.8.7 City of Kent The City of Kent is, supplied with water from nine wells and surface water from the Green River surface water, treated at five treatment plants. The City of Tukwila service boundary is contiguous with the City of Kent water service boundary. An interlocal agreement for interties and water purchase exists between Kent and Tukwila. 2.9 System Interties The City of Tukwila has interties with many of their adjacent water purveyors. Seattle: Tukwila has two emergency interties with the City of Seattle. One intertie is at the boundary between the two cities on E. Marginal Way. The second intertie is at 47th Avenue South and Victor Street. There are no written agreements for these interties. KCWD 125:.The City of Tukwila and KCWD 125 have four emergency interties. The first two interties were established in 1986. The two locations identified in the agreements are in the Allentown and Foster Point neighborhoods. A 6" connection (with meter) was installed at 131st P1 & 44th Ave S. (identified as "131St Pl" on Exhibit 2 -4), and a 4" connection (with meter) installed at Interurban Ave S. & 52nd Ave S (identified as "Park & Ride" on Exhibit 2 -4). The maximum amount of flow at each of the connection points is 1,000 gpm. These interties were originally established at the request of KCWD 125, primarily to supply additional fireflows above what KCWD 125's system could maintain. The agreement assumes water will be supplied from Tukwila to KCWD 125, although reciprocity is also established. The rate KCWD 125 pays Tukwila for water is written as the "current wholesale new water" rate which Tukwila pays to Seattle plus five cents per ccf. This will need to be updated now that Tukwila receives its water from Cascade Water Alliance. The agreement also establishes the hydraulic grade line at which water will be provided to KCWD 125, as well as estimated available flows and annual consumption. A third intertie between Tukwila and KCWD 125 is a 2" intertie is located at S. 144th St and 53rd Ave S. (identified as "S. 144th St" on Exhibit 2 -4). A fourth intertie between Tukwila and KCWD 125 was established in 2002 in the Duwamish neighborhood at S. 116th St. and Interurban Avenue South (identified as "Duwamish" on Exhibit 2 -4). Copies of the first two intertie agreements are found in Appendix E; there is no written agreement for the other interties. Highline: At the south end of the City in the Segale Park area, the City of Tukwila and Highline Water District have an intertie with a 12" pressure reducing valve and a meter. Flow is possible in both directions and is set to flow into the City when pressures drop below 125 psi at the intertie. This intertie is located at Andover Park W. & S. 180th St. This intertie was established in 1979 when Highline was called King County Water District 75. It is considered an emergency facility only. Costs for purchased water were established as $0.22 /ccf and were amended to $0.25 /ccf in the following year. A copy of this intertie agreement is found in Appendix F. Renton: In 1978, Tukwila entered into an agreement with the City of Renton for an 8" connection (with meter and pressure reducing valve) emergency intertie at 17200 West Valley Highway. In 1995 a new agreement was executed that stipulated new rates, quantity of water, Description of Water System 2 -13 Z I City of Tukwila • • • and required both cities to install and maintain metering devices. Water is regulated to flow into Tukwila from Renton when pressures drop below 90 psi at the intertie. The maximum amount of flow at the Renton intertie is not to exceed 2.7 MGD. A copy of this intertie agreement is found in Appendix G. Kent: Tukwila has an 8" connection with Kent located at West Valley Highway & Todd Boulevard. Water is regulated to flow into Tukwila from Kent when pressures drop below 90 psi at the intertie. This emergency intertie was established in 1979. The purpose of the intertie is to "provide emergency water flow and water supply to meet Kent's needs during times of peak demand and for emergency flow and fire protection in both cities." The facility was constructed and financed by Kent, and is owned and operated by Kent as well. Water rates are established in the agreement, as well as notification procedures for both parties when the intertie is used. A copy of this intertie agreement is found in Appendix H. Description of Water System 2 -14 City of Tukwila • • Section 3 Related Plans, Policies and Agreements The City of Tukwila's program to ensure a comprehensive and reliable system for delivering water supply to its customers is embedded in a larger network of plans, policies, and agreements that address land uses and water supply within King County. This section provides a brief description of selected plans, policies, and agreements that relate to the Tukwila water system. 3.1 Land Use and Other General Policies 3.1.1 Tukwila Comprehensive Land Use Plan The City of Tukwila's Comprehensive Land Use Plan (Comprehensive Plan) was originally adopted in 1995 and has been amended several times since then, including a 2004 Supplement. The Comprehensive Plan is a broad statement of community goals and policies that direct the orderly and coordinated physical developments of the city into the future. The Comprehensive Plan was developed pursuant to the State Growth Management Act (GMA). Tukwila's Comprehensive Plan includes the following six GMA required elements: Land Use, Housing, Transportation, Utilities, Capital Facilities, and Shoreline. It also includes the following five optional elements: Community Image, Economic Development, Natural Environment, Annexation, and Roles and Responsibilities. This Water System Plan is consistent with the policies in Tukwila's Comprehensive Plan. The most pertinent information in the Comprehensive Plan in regards to the Water System Plan is summarized below. • Economic Development: This element includes employment targets and states that Tukwila must plan to accommodate 16,000 additional jobs between 2004 and 2022. It should be noted these numbers can not be directly compared to the demographic projections presented in Section 4 of this WSP since the geographic areas are not identical. The geographic area for the Comprehensive Plan is all land within the city boundaries. The geographic area for the WSP is the water service area, which is far less than the city boundary in the early years of this WSP and comes close to matching the city boundary in later years. • Housing: This element includes housing targets and states that Tukwila must plan to accommodate 3,200 additional housing units (single family and multifamily combined) between 2004 and 2022. Again, it should be noted these numbers can not be directly compared to the demographic projections presented in Section 4 of this WSP for the reasons stated above. • Land Use: This element provides a map showing land use within the city based on city zoning. The map is provided in Section 3.1.2 below along with the zoning definitions. • Annexation: This element identifies two Potential Annexation Areas and discusses associated policies. Related Plans, Policies and Agreements 3-1 City of Tukwila • • • Utilities: This element addresses the goal of providing "utility services and facilities that meet the community's current and future needs in a safe, reliable, efficient, economic and environmentally responsible manner." The Utilities chapter from the 1995 Comprehensive Land Use Plan, as well as the 2004 update which references the 1995 version, are provided in Appendix I. The Utilities chapter focuses on the following five key issues. • Service Extensions: Planned extensions of utility services must be based on level -of- service standards. • Coordination of Service Providers: The City- managed utilities must be coordinated with adjacent purveyors who serve portions of the City. • Concurrency and Implications for Growth: Concurrency requires that utility plans, along with other capital facilities, be developed so that improvements, or the funds required for the improvements, are in place at the time they are needed. • Environmental Sensitivity: Utility improvements often arise from environmental concerns, but may also result in additional environmental impacts, for example, from pipeline siting and construction and from drainage and groundwater management. • Residential Revitalization: City planned utility improvements and extensions must place priority on improving and sustaining residential neighborhood quality and livability. 3.1.2 Tukwila Zoning Ordinances Zoning for land within the City of Tukwila is defined in Title 18 Zoning of the Tukwila Municipal Code. The zoning for the City's current and future service area is shown in Exhibit 3- 1. Anticipated zoning has been established for the Potential Annexation Area south of current city limits, even though land use decisions are currently technically the responsibility of King County. No major zoning changes are intended in the next 20 years. The 16 zoning classifications are defined in Table 3 -1. Related Plans, Policies and Agreements City of Tukwila 3 -2 Table 3 -1 Zoning Designations # Code Name.. Description 1 C/LI Commercial / Light Industrial Areas characterized by a mix of commercial, office or light industrial uses. Areas characterized by multi - family buildings; 15 -21.8 units per 2 HDR High Density Residential net acre, with senior citizen housing allowed up to 60 units per net acre. Areas characterized by heavy or bulk manufacturing uses and 3 HI Heavy Industrial distributive and light manufacturing uses, with supportive commercial and offices uses. 4 LDR Low Density Residential Areas characterized by detached single - family residential structures; 0 to 6.7 units per net acre. 5 LI Light Industrial Areas characterized by distributive and light manufacturing uses, with supportive commercial and office uses. 6 MDR Medium Density Residential Areas characterized by residential duplexes, triplexes, and four - plexes; 6.8 to 14.5 units per net acre. Related Plans, Policies and Agreements City of Tukwila 3 -2 # Code Table Zoning Name 3 -1 (cont.) Designations Description 7 MIC/H Manufacturing Industrial Center Heavy A major employment area containing distributive, light manufacturing and heavy manufacturing uses, with supportive commercial and office uses. 8 MIC/L Manufacturing Industrial Center /Light A major employment area containing distributive, light manufacturing, and limited office uses, with supportive commercial and office uses. 9 MUO Mixed Use Office Areas characterized by professional and commercial office structures, mixed with certain complementary retail, and residential uses and senior citizen housing allowed up to 60 units per net acre. 10 NCC Neighborhood Commercial Center Pedestrian- friendly areas characterized and scaled to serve multiple residential areas with a diverse mix of uses. Uses include certain commercial -uses mixed with residential at second story or above (senior citizen housing allowed up to 60 units per net acre); retail; service; office; and recreational and community facilities, generally along a transportation corridor. 11 0 Office Areas characterized by professional and commercial office structures mixed with certain complementary retail. 12 RC Regional Commercial Areas characterized by commercial services, offices, lodging, entertainment, and retail activities with associated warehousing and accessory light industrial uses, along a transportation corridor and intended for high- intensity regional uses. Residential uses are also allowed in appropriate areas off of the principle arterial with a maximum density determined by code standards and design review criteria. 13 RCC Residential Commercial Center Pedestrian - friendly areas characterized and scaled to serve a local neighborhood, with a diverse mix of uses. Uses include certain commercial uses mixed with residential at second story or above, with a maximum density of 14.5 units per acre; retail; service; office; and recreational and community facilities. 14 RCM Regional Commercial Mixed Use Areas characterized by commercial services, offices, lodging, entertainment, and retail activities with associated warehousing and accessory light industrial uses. Residential uses mixed with certain commercial uses are allowed, at the second story or above, subject to special design standards, and a maximum density of up to 14.5 units per acre (senior citizen housing allowed up to 60 units per net acre). 15 TUC Tukwila Urban Center A specific area characterized by high- intensity regional uses that include commercial services, offices, light industry, warehousing and retail uses, with a portion covered by the TUC Urban Center Mixed Use Residential Overlay. 16 TVS Tukwila Valley South A specific area characterized by distributive and light manufacturing uses, with supportive commercial and office uses. Source: 2004 City of Tukwila Comprehensive Plan. L� Related Plans, Policies and Agreements 1IR I City of Tukwila 3-3 <EES_OLY>M: \Tukwila \3 -04- 113 \Exhibits \Tukwila WSP Zoning.dwg Zoning> <EES_OLY>: PLOT DATE: 02 /17/05 T1ME:12: 48 • City of Tukwila Zoning C /LI HDR HI LDR LI MDR MIC /H MIC /L MUO NCC 0 RC RCC RCM TUC TVS m • King County -AA n 0 Legend City of Tukwila Boundary Existing Tukwila Service Area Future Tukwila Service Area Within 6 years Potential Tukwila Service Area (From 7 - 20 years) 4000 8000 1 SCALE IN FEET EXHIBIT 3 -1 City of Tukwila Water System Plan Zoning February 2005 IFiRIia • 3.1.3 Tukwila Water Service Ordinances Ordinances related to water service are contained in Title 14 Water and Sewers of the Tukwila Municipal Code. These ordinances cover subjects such as rates, connection policies, and water emergencies. Appendix J contains all water - related Title 14 ordinances. 3.1.3 King County Comprehensive Plan King County's most recent Comprehensive Plan is a draft version of its 2004 plan, which updates the previous plan created in 2000. The plan guides growth and development in the unincorporated areas in King County and sets county policy on major issues such as annexations, transportation, and environmental protection. The plan includes the following nine elements: Regional Planning; Urban Communities; Rural Legacy and Natural Resource Lands; Environment; Parks, Open Space and Cultural Resources; Transportation; Services, Facilities and Utilities; Community Planning Areas; and Implementation. The most pertinent information in King County's Comprehensive Plan in regards to Tukwila's Water System Plan is contained in Chapter 2 Urban Communities which contains land use information and Chapter 7 Service, Facilities, and Utilities. Chapter 7 includes the following subsections and references to King County's Countywide Planning Policies: potable water systems (F -225 to F -227); regional water supply planning (F -228 to F -230); utility system interties (F -231 to F -232); and water reuse, conservation, and accounting (F -233 to F -236). This Water System Plan is consistent with the policies in King County's Comprehensive Plan. 3.2 Supply Agreements 3.2.1 Cascade Water Alliance - Potable Water Tukwila has a supply agreement with the Cascade Water Alliance (Cascade) for potable water. That supply agreement is the Interlocal Contract between Cascade and all its members, including Tukwila and can be found in Appendix K. Section 5.2.1 Commitment To Members of the contract specifies that "Cascade shall provide a Full Supply Commitment to each Founding Member." Tukwila is a Founding Member and Full Supply Commitment is defined as, "those needs, as projected in the Members' lawfully adopted water supply plan,...net of independent supply." This supply commitment is explained at length in a discussion paper created by Cascade called Water Supply Commitment, which can be found in Appendix L. The .rate charged to Tukwila by Cascade is approximately $1.00 /ccf. Cascade currently receives its water from the City of Seattle. Cascade's contract with Seattle is a 50 -year declining block contract which began in 2004 with a 30.3 mgd block and ends in 2053 with the option to continue to purchase 5.3 mgd. This Cascade and Seattle contract can be found in Appendix M. Cascade, in partnership with its members, is developing other supply options to augment and • replace the water obtained from Seattle. Those alternative supply options will be included in }DR 1 Related Plans, Policies and Agreements 3-5 City of Tukwila • • Cascade's water system plan which is currently in progress. Once Cascade finalizes the supply options and its water system plan, Cascade members will in turn update their individual water system plans based on the Cascade water system plan. It is anticipated that in the near term Cascade will receive water from the City of Tacoma and in the longer term will develop its water right associated with Lake Tapps in Pierce County. 3.2.2 King County — Reclaimed Water Tukwila has a supply agreement with King County for reclaimed water. The reclaimed water is produced at King County's Renton treatment plant. The water is reclaimed to Class A standards under Washington State's Water Reclamation and Reuse Standards. King County is responsible for delivering the reclaimed water to Tukwila, who is in turn responsible for delivering the reclaimed water to the end user. The original supply contract between Tukwila and King County was intended as a three year pilot contract beginning in 1998. It is currently outdated and is expected to be rewritten by early 2005. The contract called for Tukwila to pay King County 80% of the wholesale rate that Tukwila paid to Seattle for potable water for that month. The contract also stipulated that Tukwila would charge its retail customers 85% of the potable water summer rate. 3.3 lntertie Agreements Tukwila has intertie agreements with the City of Seattle, King County Water District 125, Highline Water District, the'City of Renton, and the City of Kent. These intertie agreements are described in Section 2.9 Related Plans, Policies and Agreements 3-6 City of Tukwila • • Section 5 Conservation Program The City of Tukwila has a long standing commitment to water conservation. Historically, Tukwila's conservation program has been administered by the City of Seattle under its 1% Conservation Program since Seattle operates a regional conservation program for all its wholesale customers. In January 2004, Tukwila switched from buying water directly from Seattle to buying Seattle water indirectly through Cascade Water Alliance (Cascade). This also shifted the responsibility of conservation planning and administration from Seattle to Cascade. During 2004, Tukwila operated under Cascade's Transition Water Conservation Program. Cascade's draft Transmission and Supply Plan provides a general framework for its long range conservation program and refinement of that program will occur in 2005. 5.1 Conservation Objectives Cascade's conservation work is guided by their Conservation Work Group, whose mission is to "produce a regional water conservation program that benefits the ratepayers of Cascade Members and provides long -term sustainability of our water resources." The Conservation Work Group has established the following guiding principles for its conservation program: • Concentrate efforts on cost - effective and proven conservation measures. • Emphasize programs that reduce demand during the peak season. • Work collaboratively with other agencies when appropriate to promote regional conservation. • Develop programs that provide the most benefit for the greatest number of ratepayers. • Provide equity among Cascade Members by developing programs that benefit residential, commercial, and institutional customers. • Continually evaluate and revise program elements for improvement. 5.2 Compliance With Conservation Planning Requirements Current state conservation requirements are contained in the following DOH documents and have been incorporated into this WSP: • 1994 Conservation Planning Requirements: Guidelines and Requirements for Public Water Systems Regarding Water Use Reporting, Demand Forecasting Methodology, and Conservation Programs • .1997 Water System Planning Handbook • 2004 Municipal Water Law: Interim Planning Guidance For Water System Plan / Small System Management Program Approvals The State of Washington is currently in the process of revising water conservation planning requirements as a result of the 2003 Municipal Water Law. Updated planning requirements are anticipated to take effect in year 2006 and therefore do not directly affect this plan. I dims Conservation Program 5 -1 City of Tukwila • • Three additional conservation conditions are required of Tukwila, either directly or indirectly, as part of its membership in the Cascade Water Alliance (Cascade): • Cascade Interlocal Contract: Section 7.2 of the contract states, in part, that "Cascade shall develop and carry out, and Members must participate in, water conservation programs that are uniform among Members. The Board shall develop and implement a Cascade conservation management plan that provides a mandatory base conservation program that functions to reduce both average and peak demands....Members that fail to comply with base programs as set forth in Cascade's conservation management plan may be required to assume a disproportionate reduction in water supply or to pay penalty charges, or both." • Cascade - Seattle Contract: Article VI of the contract states that "Each party is committed to the principles of water conservation and each intends to achieve its anticipated savings by implementing water conservation programs either unilaterally or in partnership with other agencies." • Cascade Water Right Report of Examination (ROE): Sections 5.3.20 and 5.3.21 of the ROE require Cascade to prepare a water conservation plan in accordance with DOH's Conservation Planning Requirements. Table 5 -1 lists the conservation requirements for a public water system of Tukwila's size, as well as Tukwila's status regarding those requirements. The requirements are grouped into four categories: public education, technical assistance, system measures, and incentives or other measures. The City of Tukwila strives to meet all these requirements. Category Public Education Table 5 -1 Conservation Requirements for Serving 1,000- 25,000 Item Program Promotion: Publicize the need for water conservation through media outreach and/or other means. Public Water Systems Connections Tukwila Status Historically accomplished through Seattle's 1% Program. Will now be addressed as a part of the Cascade program. Technical Assistance Purveyor Assistance: Assist wholesale customers to develop and implement conservation programs. Not applicable. Tukwila does not wholesale water. Customer Assistance: Provide assistance and information to customers which facilitates water conservation. Historically accomplished through Seattle's 1% Program, which will now be addressed as a part of the Cascade program. In addition, City staff meet with customers to help manage irrigation demand. Bill Showing Consumption History: Show percentage increase or decrease in water use over the same period from the previous year. Customer water bills show consumption for the same time period in the previous year. Z 1 Conservation Program City of Tukwila 5-2 • • Category System Measures Table 5 -1 (cont.) Conservation Requirements for Public Water Systems Serving 1,000- 25,000 Connections Item Source Meters: Use master source meters for all sources and maintain periodic meter testing and repair program. Tukwila Status All potable water has source meters, which are installed and maintained by Seattle. The raw water from the Green River water right (used for Foster Golf Links irrigation) is not metered. Service Meters: Use individual meters for all water uses and maintain periodic meter testing and repair program. Unaccounted Water / Leak Detection: If unaccounted water is in excess of 20 %, conduct a regular and systematic program of finding and repairing leaks. All water users are metered and Tukwila has a meter testing and maintenance program. Unaccounted water is below 20 %. Tukwila proactively conducts regular leak detection surveys, with the most recent survey performed in 2003. Incentives / Other Measures Single Family / Multifamily Kits: Distribute kits containing easily installed water saving devices to single family and multifamily residences. Historically accomplished through Seattle's .1% Program. Will now be addressed as a part of the Cascade program. Nurseries / Agriculture: Encourage and/or require the use of current technology for large agricultural/irrigation operations. Landscape Management / Playfields: Promote low water demand landscaping in all retail customer classes. Not applicable. Tukwila does not have large scale nurseries or agriculture. Historically accomplished through Seattle's 1% Program., which will now be addressed as a part of the Cascade program. Tukwila uses reclaimed water for several public ballfields and streetscapes and is exploring using reclaimed water on a public golf course. City staff meet with customers to help manage irrigation demand. Conservation Pricing: Use a rate structure that provides economic incentives to conserve water. Tukwila uses seasonal rates, which is a recognized conservation pricing technique. The general framework for Cascade's conservation program is provided in the draft conservation chapter of Cascade's Transmission and Supply Plan. Details and refinement of that program will occur in 2005. The program measures are anticipated to be similar to the conservation activities pursued in recent years. There will be an increased emphasis on reducing peak season demand through irrigation efficiency programs and public education. The proposed savings goal of the Cascade conservation program is a five percent reduction in Cascade's 2010 average daily demand. 5.3 Water Conservation History As previously stated, Tukwila participated in Seattle's 1% Water Conservation Program through Year 2003. The 1% program began in 2000 for Seattle's purveyors, although previous conservation programs existed prior to 2000. The 1% Program is a comprehensive program that reaches every sector and promotes both equipment upgrades and behavior changes. Table 5 -2 ha( 1 mew Conservation Program 5-3 City of Tukwila provides an overview of the 2003 program components for the residential indoor, residential outdoor, commercial indoor, and commercial outdoor sectors, as well as general customer outreach. The programs are described in more detail below, including participation in these programs by Tukwila' customers. Table 5 -2 Conservation Programs Offered Through Seattle's 2003 1% Program Sector Residential Indoor Program Washing machine rebates Toilet rebates Free showerheads Free faucet aerators Residential Outdoor Irrigation system audits Irrigation system equipment rebates Public & professional outreach: Northwest Yard Days, nursery partnerships, Natural Lawn & Garden hotline, professional workshops. Commercial Indoor Rebates for domestic uses (toilets, etc) Rebates for non - domestic uses (laundry, ice machines, cooling, process, etc) Commercial Outdoor Irrigation system audits Irrigation system equipment rebates General Customer Outreach and Youth Education Print, radio, bus, website, community festivals, youth education. 5.3.1 Residential Indoor In the residential indoor sector, the program focuses on reducing indoor water use by both single family and multifamily customers. Program information is provided to customers through targeted and regional print, radio and transit advertising; point of purchase materials at retailers; and direct contact with customers. Washing machine rebates of $50 -$100 were offered to customers purchasing qualified efficient machines. 123 rebates have been issued to Tukwila customers since the program inception in 2000. Toilet rebates of $60 -$125 have been offered to single family and multifamily customers, with a focus on multifamily customers in 2003. The total number of rebates in Tukwila is not available. Free showerheads and bathroom faucet aerators have been distributed, although the quantity distributed in Tukwila is not available. 5.3.2 Residential Outdoor In the residential outdoor sector, the program focuses on outdoor water use by both single family and multifamily customers. Program information is provided to customers through targeted and regional print and radio advertising, point of purchase materials at retailers, direct contact with customers, and training of industry professionals. Irrigation system audits and equipment rebates were offered to encourage customers to keep irrigation systems operating as efficiently as possible. While this program was promoted in all Seattle water purveyor areas, no Tukwila customers participated in this program in 2003. Extensive public and professional outreach has been conducted related to outdoor watering. In 2003, this included nearly 100 ads in 18 Conservation Program 5-4 Hal I Ames City of Tukwila • • • • • • newspapers featuring the Better Way To Beautiful campaign, over 300 Better Way To Beautiful radio ads on KING FM and KPLU FM, the Northwest Natural Yard Days promotion including discounted water smart gardening supplies, brochure distribution through nursery partnerships, the Natural Lawn & Garden Hotline, and staff training to over 200 nursery professionals. These efforts include the Tukwila market. 5.3.3 Commercial Indoor The Water Smart Technology program provides free technical assistance and financial incentives to reduce water use in commercial, industrial, and institutional facilities. Conservation opportunities include replacing toilets and urinals, converting ice machines and refrigeration equipment from water cooling to air cooling, installing high efficiency commercial clothes washers, upgrading air compressors and other medical equipment, process water recycling and reuse, cooling tower improvements, and other water use efficiency technology. Financial incentives provide standard rebates or custom incentives of up to 50% of the installed cost of any cost - effective conservation measure. The amount of Water Smart Technology programming performed in Tukwila since the program inception is unknown. 5.3.4 Commercial Outdoor In the commercial outdoor sector, the program focuses on irrigation efficiency for commercial, industrial, and institutional customers. Conservation opportunities include improved irrigation controls and scheduling; upgraded system components; and soil amendment and plant selection. No- obligation professional site audits are offered and are accompanied by financial incentives when cost - effective. In 2003, audits were performed at three Tukwila customers. 5.3.5 General Customer Outreach and Youth Education In addition to program - specific outreach, the 1% program promoted general conservation messaging intended to continue to build and reinforce a water conservation ethic among customers. This included promoting a conservation website (www.savingwater.org) and financially supporting the Water Use It Wisely regional radio campaign sponsored by the Water Conservation Coalition of Puget Sound. Youth education efforts included free distribution of conservation kits, posters, and shower timers; developing web -based education programs; advertising during children's television programming; and staffing booths at children's events. 5.4 Effects of Conservation on System Demand Conservation has reduced Tukwila's water demand in the past and will continue to do so in the future. Seattle's 1% program has documented saving 4.9 mgd since 2003 throughout the total program service area, including Tukwila. The exact savings in Tukwila are not available. The demand forecast presented in Section 5 includes conservation savings. These savings were incorporated by assuming a 0.5% per household or employee reduction in water use for each of the first 10 years of this water system plan. A more conservative reduction was used compared Conservation Program 5-5 haZ 1 dims City of Tukwila • • to previous conservation planning (0.5% compared to 1 %) in the event that transferring conservation program administration from Seattle to Cascade results in less savings due to changes in economies of scale or other factors. While Tukwila will continue conservation programs in years 11 -20, those savings are not incorporated into the demand forecast in order to plan conservatively. This is based on the reality that future conservation will presumably be harder to achieve since easier conservation savings are generally undertaken first, leaving harder conservation savings for later years. • • Conservation Program City of Tukwila • • • Section 4 Planning Data and Demand 4.1 Customer Categories and Characteristics The City officially divides its water customers into four categories: single family, multifamily, commercial /industrial, and low income senior /disabled. These categories are defined below. • Single Family — Connections serving one dwelling unit. • Multifamily — Connections serving more than one dwelling unit. A very small number of the meters in this category are irrigation -only meters. ■ Commercial/Industrial — Connections serving non - residential facilities. Some of the meters in this category are irrigation -only meters. ■ Low Income Senior/Disabled — Connections serving persons with disposable income less than $32,000 and either at least 62 years old or permanently disabled. These customers qualify for a 50% discount. Much of the data presented in this WSP breaks out customer categories slightly differently than the official categories for two reasons. First, the single family and low income senior /disabled categories will be combined. This is done because the billing system, from which water sales data was collected, combines these two categories. Second, the commercial /industrial category is split between regular customers and "high demand" customers. This is done in order to properly forecast future water demand. The high demand commercial customers are those with high demand and relatively few employees. These customers would artificially inflate the demand per employee and the resulting demand forecast if not separated from the rest of the commercial customers. This special commercial category consists of four customers: Shasta Beverage, Embassy Suites, Double Tree Hotel, and Jorgensen Forge. The number of connections per customer category is shown in Table 4 -1. Water sales are also included in the table to point out that, as with many utilities, water sales do not follow the same proportions as customer categories. This is particularly the case in Tukwila where there is a large commercial base. Single family customers represent 52.5% of connections, but only 9% of the water sales. Commercial/Industrial customers represent only 39.8% of connections, but nearly double that (78 %) in terms of water sales. Planning Data and Demand 4 -1 ma I mew City of Tukwila Table 4 -1 Connections and Potable Water Sold by Customer Category Customer ! Category Connections in 2003' % Connections Water Sold 1999- 2003 avg (gpd)2 To Water Sold Single Family3 1,130 52.5% 184,700 9% Multifamily 166 7.7% 256,627 13% Commercial — Regular4 854 39.6 1,374,371 70% Commercial — High Demand4 4 0.2% 153,140 8% Total 2154 100% 1,968,838 100% 'Source: "Comp Plan Update" spreadsheet provided by the City of Tukwila; as of 12- 31 -03. `Source: "Sold H2O" spreadsheet provided by the City of Tukwila: 1999 -2003 average. Includes low income senior /disabled customers. °High demand customers are customers with very large demand, but relatively few employees. Since they would artificially inflate the overall demand per employee and the resulting demand forecast, their water and employees are treated separately from the regular commercial customers. There are four high demand customers: Shasta, Embassy Suites, Double Tree, and Jorgensen Forge. 4.2 Demographics - Existing and Projected Current and future demographic information is based on information obtained from the Puget Sound Regional Council (PSRC). The PSRC makes projections for households and employment based on official projections from Washington State's Office of Management and Budget. These projections are available for 10 year increments from 2000 to 2030. The PSRC allocates the projections across small geographic areas called Transportation Analysis Zones (TAZ). The process to convert the PSRC data to data specific to the City is as follows. The geographic boundaries of the TAZs and the City's service area are overlayed to determine which TAZs, or portions thereof, are in the City's service area. For any TAZ fully in the City's service area, all the households and employment in that TAZ are assigned to the City. For any TAZ not fully in the City's service area, the households and employees in that TAZ are assigned to the City based on the percent of the TAZ in the City's service area and reviews of aerial photos and zoning maps. This analysis is done for each year during the planning period, taking into account how service area boundaries grow over the planning period. The results of this analysis are shown in Table 4 -2. Single family households in the City's water service area are projected to increase from 1,200 to 2,906 between 2005 and 2024, a growth of 142 %. It should be noted that the number of single family households actually decreases between 2020 and 2024. The demographic data obtained from PSRC shows this decrease, which presumably is due to conversion from single family to multifamily households. Multifamily households are projected to increase from 2,049 to 7,021 between 2005 and 2024, a growth of 243 %. Employment is projected to increase from 41,017 to 71,556 between 2005 and 2024, a growth rate of 74%. These increases are due partly to overall growth in the current service area, and partly due to addition of new lands to the City's service area, estimated to occur in years 2010, 2015, and 2020. .Z I Planning Data and Demand 4 -2 City of Tukwila • • • • Table 4 -2 Current and Future Demographics Year Single Family Households Multifamily Households Employment 2005 1,200 2,049 41,017 2006 1,206 2,112 41,538 2007 1,213 2,174 42,059 2008 1,219 2,237 42,580 2009 1,225 2,299 43,101 2010 1,308 2,540 46,430 2011 1,313 2,627 47,173 2012 1,319 2,714 47,915 2013 1,324 2,801 48,658 2014 1,329 2,888 49,400 2015 1,367 2,977 52,470 2016 1,373 3,064 53,277 2017 1,378 3,151 53,982 2018 1,384 3,238 54.738 2019 1,388 3,325 55,493 2020 2,946 6,252 66,730 2021 2,936 6,444 67,935 2022 2,926 6,636 69,143 2023 2,917 6,828 70,300 2024 2,906 7,021 71,556 • 4.3 Potable Water • 4.3.1 Potable Water Purchases The average of the four most recent years of potable water purchases from the City of Seattle are shown in Table 4 -3. (Water formerly purchased from Seattle will now be purchased from Cascade.) The data is presented by month and by location, both of which are shown graphically in Exhibits 4 -1 and 4 -2. The average annual purchase over the last four years has been 2,259,010 gpd. The City has a monthly distribution typical of most utilities, with higher water purchases in the summer months driven by additional summer uses such as outdoor watering. Purchases come primarily from three of the eight taps off Seattle's pipelines. The Southcenter tap is the largest source at 59 %, followed by East Marginal Way at 23% and then Christensen at 14 %. Planning Data and Demand 4-3 Da 1 'e 3 City of Tukwila Table 4 -3 Purchased Potable Water 2000 -2003 Average (gpd) Month Oxbow #8 Ryan Hill #9 East Marginal #10 Allentown Southcenter #11 ' #13 W. • Crystal • Valley Christensen. Springs:; #14 #15. #16 Total Jan 27,656 29,224 200,786 2,093 1,349,651 157 200,219 10,733 1,820,519 Feb 34,172 31,981 213,235 3,373 1,407,871 100 236,767 10,039 1,937,539 Mar 25,942 26,962 232,502 48 1,087,768 115 245,395 7,728 1,626,460 Apr 33,484 32,492 236,474 5,124 1,368,668 330 297,033 11,907 1,985,514 May 31,999. 30,280 303,704 1,671 1,433,498 977 144,697 11,396 1,958,224 Jun 43,546 34,706 572,116 873 1,281,819 667 309,034 11,396 2,254,156 Jul 57,730 36,965 1,168,194 567 1,377,518 97 400,523 8,700 3,050,293 Aug 93,579 45,538 1,279,963 145 1,519,687 700 458,682 6,552 3,404,844 Sep 82,347 45,877 1,019,031 187 1,437,692 75 504,943 6,465 3,096,617 Oct 40,379 24,579 578,058 278 1,106,923 84 548,019 9,623 2,307,943 Nov 24,631 27,306 284,596 1,590 1,318,102 62 262,446 8,622 1,927,355 Dec 24,000 28,283 242,101 6,437 1,216,133 139 190,959 6,841 1,714,893 Annual 43,334 32,832 530,142 1,852 1,324,480 294 316,922 9,155 2,259,010 % 2% 1% 23% 0.1% 59% 0.01% 14% 0.4% 100% Jan 27,656 29,224 200,786 2,093 1,349,651 157 200,219 10,733 1,820,519 4,000,000 3,500,000 3,000,000 2,500,000 a (} 2,000,000 1,500,000 1,000,000 - 500,000 - 0 i i i i Jan Feb Ma Ap May Jun Jul Aug Sep Oc Nov Dec Month Source: "Taps" spreadsheet provided by the City of Tukwila. Exhibit 4 -1 Monthly Distribution of Purchased Potable Water 2000 -2003 Average Planning Data and Demand Da I ��S City of Tukwila 4-4 • • • ■ ❑ West Valley — #14 0 Southcenter #13 - 58.63% ❑Allentown #11 \; 2001 2,256,778 0.4% 2002 2,293,998 1.6% 2003 2,238,594 -2.4% ' r '.::. ". 0.01% o Christensen #15 14.03% < =� . / ..... •• 5i3:: .= ME '• •••• °•• ❑ Crystal Springs :... •••: — #16 2------...., ... .VMS' 0.41% ❑ Oxbow #8 1.92% —❑ Ryan Hill #9 1.45% El East Marginal / � ! :. e;, • ti t° Way #10 , 0.08% - 23.47% Source: "Taps" spreadsheet provided by the City of Tukwila. Exhibit 4 -2 Potable Water Purchased by Area 2000 -2003 Average Water purchases have been fairly consistent over the last four years, as shown in Table 4 -4. The annual change has ranged from negative 2.4 to positive 1.6. Table 4 -4 Potable Water Purchases and Annual Change 2000 -2003 (gpd) Year' Purchased Water? Annual Growth-Rate,, 2000 2,246,671 2001 2,256,778 0.4% 2002 2,293,998 1.6% 2003 2,238,594 -2.4% The master meter underegistered the volume purchased by an unknown amount in 2000. 2Source: "Taps" spreadsheet provided by the City of Tukwila. 4.3.2 Potable Water Sales The average of the five most recent years of potable water sales are shown in Table 4 -5. The data is presented by month and by customer category, both of which are shown graphically in Exhibits 4 -3 and 4 -4. Similar to the situation with water purchases, water sales have a typical monthly distribution with higher sales in the summer months. Commercial customers represent the bulk of water sales at 78 %, followed by multifamily at 13 %, and then single family at 9 %. It should be noted that while both water purchases and water sales are based on monthly billings, their time periods have been generalized and will not match perfectly. ,� 1 ��� Planning Data and Demand 4 -5 City of Tukwila Table 4 -5 Potable Water Sales 1999 -2003 Average (gpd) -Month Single Family Multi - Family Commercial Regular' Commercial High Demand' -Total Jan 184,221 265,397 1,076,501 136,777 1,662,896 Feb 156,198 243,405 1,010,683 136,518 1,546,804 Mar 151,859 239,040 1,017,068 131,608 1,539,575 Apr 171,415 255,346 1,151,266 163,450 1,741,477 May 166,527 234,817 1,106,010 154,287 1,661,641 Jun 202,396 268,189 1,648,244 178,941 2,297,769 Jul 229,498 272,086 1,882,321 188,290 2,572,195 Aug 265,160 302,430 2,144,470 179,597 2,891,657 Sep 214,101 274,827 1,990,036 165,310 2,644,274 Oct 171,199 258,997 1,471,141 148,587 2,049,924 Nov 150,263 233,856 1,030,288 129,955 1,544,363 Dec 150,783 230,034 939,623 123,567 1,444,007 Annual 184,700 256,627 1,374,371 153,140 1,968,838 Source: "Sold H2O" and "Water 99" spreadshee s provided by the City of Tukwila. High demand customers! are customers with very large demand, but relatively few employees. Since they would artificially inflate the overall demand per employee and the resulting demand forecast, their water and employees are treated separately from the regular commercial customers. There are four high demand customers: Shasta, Embassy Suites, Double Tree, and Jorgensen Forge. 3,500,000 3,000,000 2,500,000 2,000,000 a 1,500,000 1,000,000 500,000 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Month • Single Family ID Multi - Family o Commercial High Demandl ci Commercial Regularl Source: "Sold H2O" and "Water 99" spreadsheets provided by the City of Tukwila. High demand customers are customers with very large demand, but relatively few employees. Since they would artificially inflate the overall demand per employee and the resulting demand forecast, their water and employees are treated separately from the regular commercial customers. There are four high demand customers: Shasta, Embassy Suites, Double Tree, and Jorgensen Forge. Exhibit 4 -3 Monthly Distribution of Potable Water Sales 1999 -2003 Average Planning Data and Demand City of Tukwila 4 -6 • • • • Commercial Regularl ,\ 2,110,329 9 Corr>rnercial High Demand1 8% ❑ Single Family g% � ®Mufti - Family 13% -- 2,098,886 -0.5% _ ____: ° == _ __ •70% S° • v���i�iiii•�DNr• Opp0,1` ,�' ;p+, _.: - -1.5% Source: "Sold H20" and "Water 99" spreadsheets provided by the City of Tukwila. 'High demand customers are customers with very large demand, but relatively few employees. Since they would artificially inflate the overall demand per employee and the resulting demand forecast, their water and employees are treated separately from the regular commercial customers. There are four high demand customers: Shasta, Embassy Suites, Double Tree, and Jorgensen Forge. Exhibit 4 -4 Potable Water Sales by Customer 1999 -2003 Average Water sales and their annual changes over the last five years are shown in Table 4 -6. The annual change has ranged from negative 10.5% to positive 2.9 %. Table 4 -6 Potable Water Sales and Annual Change 1999 -2003 (gpd) Year Sold Water' Annual Growth Rate;`' 1999 2,110,329 n/a 2000 2,098,886 -0.5% 20012 1,879,285 - 10.5% 2002 1,851,326 -1.5% 2003 1,904,363 2.9% 'Source: "Sold H2O" and "Water 99" spreadsheets provided by the City of Tukwila. 22001 was a drought year with extensive conservation efforts made throughout the Seattle/purveyor service area. 4.3.3 Potable Water Large Customers Customers with large water demand are of particular interest for two reasons. First, changes in their demand could have significant impact on the overall demand for the City. Therefore, it is important to check if these customers have future plans which will significantly alter their demand, such as doubling capacity or closing down. City staff indicated they did not expect any changes from these large customers. Second, certain large customers could skew the demand forecast if not handled properly in the demand forecast calculations. This is true for customers with large demand but relatively few employees since this will artificially inflate the demand per employee, a critical component in the demand forecasting method used in this plan. ma I dims Planning Data and Demand 4 -7 City of Tukwila The ten largest water customers from 2003 are shown in Table 4 -7 and collectively represent approximately 19% of total potable water demand. The last column in the table indicates whether the customer is treated separately for demand forecasting since it would artificially inflate the overall demand per employee. Four customers fit this criteria: Shasta Beverage, Embassy SuitesI, Double Tree Hotel, and Jorgensen Forge. 'Customers with very large demand, but relatively few employees, art'ficially inflate the demand per employee and the resulting demand forecast. Therefore, water and employees for these customers (Shasta, Embassy Suites, Double Tree; and Jorgensen Forge) are treated separately. 'Source: Billing system printouts provided by the City of Tukwila. 3Source: 5 -25 -04 email from Mike Cusick. 4A total of 4,896 employees for both Boeing sites combined was divided equally between both sites. The five most recent years of sales to 2003's top ten largest customers are shown in Table 4 -8 and Exhibit 4 -5. It should be clarified that this is not the same as the top ten water customers in each of the last five years. One of these customers (Costco) did not begin water service until mid -2000 and sales data for another customer (Southcenter Mall) was only available beginning in 2000. Some summer peaking does exist, however, the magnitude of the summer peak is smaller for these large customers compared to the overall system. Month Jan Potable I 1999 286,378 Table 4 -7 Largest Potable Water Customers Table 4 -8 2003's 10 Largest 2001 432,040 # Customer Service Address 2003 Employees' Demand Average 1999 -2003 Treat separately since inflate gpde data?' gpd' gpde 1 Shasta Beverage 1227 Andover Park E 42 71,839 1,710 Yes 2 Southcenter Mall 633 Southcenter Pkwy 3,270 64,111 20 No 3 Boeing PSAM 12- 03804 9797 E Marginal Way S 2,448 40,516 17 No 4 Boeing PSAM 12- 03704 2401 S 98th St 2,448 37,192 15 No 5 Embassy Suites 15920 W Valley Hwy 79 32,839 416 Yes 6 Canyon Estates Condo 15200 65th Ave S 5 32,029 6,406 No - residential 7 Double Tree 16500 Southcenter Pkwy 124 30,167 243 Yes 8 Costco 1162 Costco Dr 411 22,330 54 No 9 Jorgensen Forge 8531 E Marginal Way S 150 18,295 122 Yes 10 Associated,Grocers 3301 S Norfolk St 221 17,377 79 No Total 302,044 Annual 9,198 366,696 40 376,700 'Customers with very large demand, but relatively few employees, art'ficially inflate the demand per employee and the resulting demand forecast. Therefore, water and employees for these customers (Shasta, Embassy Suites, Double Tree; and Jorgensen Forge) are treated separately. 'Source: Billing system printouts provided by the City of Tukwila. 3Source: 5 -25 -04 email from Mike Cusick. 4A total of 4,896 employees for both Boeing sites combined was divided equally between both sites. The five most recent years of sales to 2003's top ten largest customers are shown in Table 4 -8 and Exhibit 4 -5. It should be clarified that this is not the same as the top ten water customers in each of the last five years. One of these customers (Costco) did not begin water service until mid -2000 and sales data for another customer (Southcenter Mall) was only available beginning in 2000. Some summer peaking does exist, however, the magnitude of the summer peak is smaller for these large customers compared to the overall system. Month Jan Potable I 1999 286,378 Water Sales of 2000 342,630 Table 4 -8 2003's 10 Largest 2001 432,040 Customers 2002 367,438 (gpd) 2003 301,146 Avg 345,926 Feb 290,770 284,064 417,360 343,912 355,535 338,328 Mar 277,931 330,153 354,141 308,941 334,377 321,109 Apr 300,138 399,136 412,328 401,455 362,903 375,192 May 294,414 356,240 396,228 349,049 325,737 344,334 Jun 323,304 383,252 496,040 414,398 553,270 434,053 Jul 283,747 441,138 446,809 440,197 494,253 421,229 Aug 406,025 479,894 434,308 454,797 405,929 436,191 Sep 300,512 381,406 429,534 452,351 516,189 415,998 Oct 273,563 400,740 345,405 369,006 392,849 356,313 Nov 248,644 292,158 290,288 310,486 403,750 309,065 Dec 208,816 305,563 317,001 307,517 371,323 302,044 Annual 291,169 367,067 397,358 376,700 401,185 366,696 Source: Billing system printouts provided by the City of Tukwila. Da 1 ��� Planning Data and Demand City of Tukwila 4-8 • • • • • o. a 500,000 450,000 400,000 350,000 300,000 250,000 200,000 150,000 100,000 - 50,000 0 • r, Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Month Source: Billing system printouts provided by the City of Tukwila. Exhibit 4 -5 Monthly Distribution of Potable Water Sales for 2003's 10 Largest Customers 1999 -2003 Average 4.3.4 Potable Water Peaking Factor The peaking factor is critical to water supply planning since systems must be sized to meet the peak demand, not just average demand. The peaking factor for five of the most recent years available is shown in Table 4 -9. An average peaking factor of 1.72 was calculated using four of these five years. 1996 was excluded from the average since it had a much lower peaking factor and was probably not representative of normal conditions. Data for more recent years is not available since 1998 was the most recent year that Seattle performed demand metering. Tukwila staff have indicated they think the peaking factor has not changed significantly. Table 4 -9 Peaking Factor2 -Year' - • Peak Day GPD Average Day GPD Peaking Factor:'' "` 1993 2,690,000 1,550,000 1.74 1994 2,820,000 1,770,000 1.59 1996 2,900,000 2,430,000 1.19 1997 4,200,000 2,550,000 1.65 1998 4,494,000 2,340,000 1.92 4 Yr Average3 3,420,800 2,128,000 1.72 'No data was available for 1995. 1998 is the most current year since it is the most recent year that Seattle performed demand metering. 2Based on water purchases 3This is the average for 1993, 1994, 1997, and 1998. 1996 was omitted since its peaking factor of 1.19 is much lower than the other years and probably is not representative of normal conditions. Source: "Yrwtr" spreadsheet provided by the City of Tukwila. 4.3.5 Potable Non - Revenue Water Non - revenue water is defined as the difference between the volume of water produced and/or purchased and the volume of water sold. The volume of non - revenue water for the past several years is shown in Table 4 -10 and has averaged 17 %. Planning Data and Demand City of Tukwila 4-9 Table 4 -10 Non - Revenue Potable Water (gpd) Year 2001 2002 2003 Average Water Purchased' 2,256,778 Water Sold2 1,879,285 gp 377, 2,293,998 1,851,326 442, 2,238,594 1,904,363 334, 2,263,123 1,878,325 384, Non - Revenue Water d % 493 16.7% 672 19.3% 231 14.9% 799 17.0% 'Source: "Taps" spreadsheet provided by the City of Tukwila. 2Source: "Sold H2O" spreadsheet provided by the City of Tukwila. Examining non - revenue water is important for two reasons: part of this water may be a source of additional revenue and part of this water may be associated with leaks that should be fixed. In addition, non - revenue water should be factored into the demand forecast to establish the City's total water supply needs. In order to fully understand non - revenue water, it is important to understand the overall water balance. A water balance is simply an accounting for all water that is produced and/or purchased. Table 4 -11 shows the water balance format developed by the International Water Association (IWA) and recommended by the American Water Works Association (AWWA) Water Loss Committee. The IWA format has been modified slightly to include a sub - category called "Remainder "; this modification is discussed below. The IWA uses several different categorization methods, each having a specific use. Water Produced and/or Purchased Category Method #1 Revenue Water Table 4 -11 Potable Water Balance 2003 Category Method #2 Billed Authorized Consumption Category Method #3 Billed Water exported Volume (gpd) 0 Billed Metered Consumption — Permanent Meters 1,904,363' % of Water Purchased 0.00% 85.07% Billed Metered Consumption — Temporary Meters 5142 0.02% Billed Unmetered Consumption 0 Non Revenue Water Unbilled Authorized Consumption Unbilled Metered Consumption 0 Unbilled Unmetered Consumption' 4,2073 0.00% 0.00% 0.19% Apparent Losses Unauthorized Consumption Unknown Customer Metering Inaccuracies Unknown Real Losses Known Leakage on Mains 21,240° Known Leakage on Service Connections 14,4004 Leakage and Overflows at Storage Unknown Remainder 296,4005 TOTAL 2,238,5946 Unknown Unknown 0.95% 0.64% Unknown 13.13% 100% Source: "Sold H2O" spreadsheet provided by the City of Tukwila 'Source: 5 -6 -04 email from Richard Takechi. 3Source: 5 -6 -04 email from Richard Takechi and 9 -10 -04 email from Pat Brodin, with details described in Table 4 -12. 'Source: 2003 Utilities Services Associates leak detection report. 6This is the difference between water purchased and water accounted for in this water balance. The International Water Association water balance protocol does not include this category, but rather suggests making best estimates for all non - revenue categories and then assigning any remaining water to leaks. 6Source: "taps" spreadsheet provided by the City of Tukwila. ja 1 Planning Data and Demand City of Tukwila 4-10 • • • • • • The first categorization method simply splits water between Revenue Water and Non - Revenue Water. As implied by the names, Revenue Water generates income while Non - Revenue Water does not. This is helpful in understanding what percent of water produced and/or purchased actually generates income for the water utility. The second categorization method splits Revenue Water and Non - Revenue Water into sub- categories. Non - Revenue Water's split into four sub - categories is useful in identifying potential additional revenue sources and identifying the magnitude of leaks that could be fixed. • The first sub - category is Unbilled Authorized Consumption which includes uses such as water system flushing, firefighting, and contractor use. Typically, it is standard practice not to charge for uses falling into this sub - category. However, the City might want to review these uses to ensure it is not missing a legitimate revenue opportunity. • The second sub - category is Apparent Losses which includes unauthorized uses and customer meter inaccuracies, both of which are lost revenue opportunities. • The third sub - category is Real Losses which includes various types of system leaks. A certain level of leaks is unavoidable, however, leaks beyond that level should be fixed in order to not unduly burden both the natural resource and the physical infrastructure. • The fourth sub - category is Remainder, which is not part of the IWA's official water balance format. Under the 1WA's protocol, any amount that can not be assigned to another category is put into the leaks category. For this WSP, any amount that could not be assigned to another category was put into the Remainder category. Tukwila's 2003 water balance is included in Table 4 -11. Tukwila's purchased water is divided into 85% Revenue Water and 15% Non - Revenue Water. The four sub - categories of Non - Revenue Water include 0.19% for Unbilled Authorized Consumption (see unmetered portion in Table 4 -12), an unknown amount for Apparent Losses, 1.59% for Real Losses, and 13.13% for Remainder. Table 4 -12 Unbilled Unmetered Consumption for 2003 Potable Water Balance (gpd) 4.3.6 Potable Water Projected Demand The projected demand is shown in Table 4 -13 and Exhibit 4 -6 which show average day demand rising from 2,461,848 in 2005 to 4,676,374 in 2024. The exhibit breaks down the demand by service area section. This allows the City to examine how demand is expected to increase in its current service area compared to how demand is expected to increase in and because of the five new areas. This distinction is helpful since, as discussed in Section 4.2, the certainty and timing Planning Data and Demand 'gees City of Tukwila 4-11 GPD 1,025 Activity Flushing of water system 250 Flushing of sewer system 389 Flushing of storm water system 12 Street sweeping by city 30 Street sweeping by private entities 500 Fire firefighting 2,000 Fire testing 4,207 Total 4.3.6 Potable Water Projected Demand The projected demand is shown in Table 4 -13 and Exhibit 4 -6 which show average day demand rising from 2,461,848 in 2005 to 4,676,374 in 2024. The exhibit breaks down the demand by service area section. This allows the City to examine how demand is expected to increase in its current service area compared to how demand is expected to increase in and because of the five new areas. This distinction is helpful since, as discussed in Section 4.2, the certainty and timing Planning Data and Demand 'gees City of Tukwila 4-11 of service area expansion is not fully known. The exhibit also includes the most recent four years (2000 -2003) of actual water purchases for comparison purposes. Year Demographics Potable Water Water Use Factor Igdhel Table Projected 4 -13 Demaed Average Day Demand tgpol Jlaximum Day Demand t polz SF HH' JIF Hie Employ ees' SF HH' .IF 11115 Employee Single i Famly Multi i Famly Commercial Yon- Revenue Total High . Demand Future 2005 1,200 2,049 40,622 163.0 133.0 35.0 195,600 272.517 1,421,770 153,140 0 418,821 2,461,848 4,234,379 2006 1,206 2,112 41,143 162.2 132.3 34.8 195,613 279,418 1.431,776 153.140 20,000 426,389 2,506,336 4,310,898 2007 1,213 2,174 41,664 161.4 131.6 34.6 195.778 286,098 1,441,574 153.140 20,000 429,801 2,526,392 4,345,394 2008 1.219 2,237 42.185 160.6 130.9 34.4 195,77! 292,823 1,451,164 153,140 20,000 433,144 2,546,043 4,379,193 2009 1,225 2,299 42,706 159.8 130.2 34.2 195.755 299,330 1,460,545 153.140 20,000 436,398 2,565,168 4.412,089 2010 1,308 2,540 46,035 159 0 129 5 34 0 207.972 328.930 1,565.190 153,140 20,000 466,422 2,741,654 4,715,645 2011 1,313 2,627 46,778 158.2 128.9 33.8 207,717 338,620 1,581,096 153.140 20,000 471,618 2,772,191 4,768,169 2012 1,319 2,714 47,520 157.4 128.3 33.6 207,611 348,206 1,596.672 153,140 20,000 476,754 2.802,383 4,820,098 2013 1,324 2,801 48,263 156.6 127.7 33.4 207,338 357,688 1,611,984 153,140 20,000 481.781 2.831.931 4,870,922 2014 1,329 2,888 49,005 155.8 127.1 33.2 207,058 367,065 1,626,966 153,140 20,000 486,718 2,860,947 4,920.829 2015 1,367 2,977 52.075 155.8 127.1 33.2 212,979 378,377 1,728,890 153,140 20,000 511,145 3,004.530 5,167,792 2016 1,373 3.064 52,832 155.8 127.1 33.2 213,913 389,434 1,754,022 153,140 20,000 518.756 3,049,266 5,244,738 2017 1,378 3,151 53,587 155.8 127.1 33.2 214,692 400,492 1,779,088 153.140 20,000 526.320 3,093,733 5,321,221 2018 1,384 3,238 , 54.343 155.8 127.1 33.2 215,627 411.550 1,804,188 153,140 20,000 533.924 3,138.429 5,398,097 2019 1.388 3.325 55,098 155.8 127.1 33.2 216,250 422,608 1,829,254 153.140 20,000 541.457 3,182,709 5,474,259 2020 2,946 6,252 66.335 155.8 127.1 33.2 458,987 794,629 2,202,322 153,140 20.000 743.962 4.373,040 7,521,629 2021 2,936 6,444 67,540 155.8 127.1 33.2 457.429 819,032 2.242,328 153,140 20,000 756,845 4,448,774 7,651,892 2022 2.926 6,636 68.748 155.8 127.1 33.2 455,871 843,436 2,282,434 153,140 20.000 769,75! 4,524,631 7.782,365 2023 2,917 6.828 69,905 155.8 127.1 33.2 454,469 867,839 2,320.846 153,140 20,000 782.341 4,598,634 7,909.651 2024 2,906 7,021 71,161 155.8 127.1 33.2 452,755 892,369 2,362.545 153.140 20.000 795,565 4.676,374 8,043.363 'High demand customers are customers with very large demand, but relatively few employees. Since hey would artificially inflate the ove all demand per employee and the resulting demand forecast, their water and employees are treated separately from the regular commerical customers. There are four high demand customers: Shasta. Embassy Suites. Double Tree, and Jorgensen Forge. 'Based on a peaking factor of 1.72. Excludes employees of the 4 high demand! customers. ' SF = single family households. 3 MF = multifamily households. e GDHE = gallons per day per household or employee. ,� I glees Planning Data and Demand 4 -12 City of Tukwila • • • • • • 5,000,000 4,500,000 4,000,000 3,500,000 3,000,000 a 2,500,000 - 0 2,000,000 1,500,000 1,000000 500,000 -\ 0 G i_ ` 1 \ 1 1 \- 1 1 1 -- -1 - j 1 1 1 1 1 1 1 1 i 1 1 1 1\ 1 1 1\ 1 1 1\ 1 \ 1\ 1\ i 14 \ \ 1 \ \ 1 \ • \ fa West Qty Area ■ South Annex ❑ SE City Corner ❑ SW City Corner ■Central City Areas e Current Service Area • 1 1 1 1 1 1 1 1 1 \ 1 1 1 1 1 1 1 1 1 1 1 1, -1 • \ 1 1 \ 1 1 1 1 1 1 1 \ 1 S __1 1\\\ 1 j 1 \ 1 1 1 1 1 1 1 1 11111S 1 1iS`1` i 1 11NS 1 1 1 1 1 1 1\ 1 1 1 1 ` SS 1\ 1 1\ 1 1 1\ \ 1 1\ 1 \ \ 1 1 1 1 1 1 \ 1 N11%1111 1i1111111\ 1 1\ 1 1 1\ 1 1 1 1\ 1 \ \ 1 1 I%! C 1 1 1 1 1\\ 1\\ . 1 \ \ 1 \ 1 1 _1 1 1 1 1 1 1 1\\ 1 1 1 1 1 \ \ 1 1 1 1 1 11 1 1 1\ - 1 1\ 1 1 1 1 1 1 1 -1 1 1 1 SS 1S \ N N N N N o O O o N O O) -+ O) Ye ar Exhibit 4 -6 Potable Water Demand (ADD gpd) 2000 -2003 Actual; 2005 -2024 Projected The process for projecting demand involved the following eight steps. Step 1 Demographic Projections: Demographic projections were generated according to the process described in Section 4.2. It should be noted that the employee demographic numbers in Table 4 -13 are slightly less than the numbers presented in Section 4.2. This is because the number of employees from the "commercial -high demand" customer class has been subtracted. As discussed previously, the employees and demand from these customers are backed out and treated separately since these large customers with few employees would artificially inflate the gallons per employee number. Step 2 Water Use Factors: Water use factors were calculated by dividing the water sales for a customer class by the number of respective households or employees. This was done for the single family, multifamily, and regular commercial customer classes. This results in the number of gallons per day used per household or employee. This water use factor was decreased by ,� I Planning Data and Demand 4 -13 City of Tukwila • • 0.5% each year for the first ten years in order to reflect anticipated conservation savings. It was then held constant assuming conservation savings will be more difficult to achieve since easier conservation savings are usually gained first. As shown in Table 4 -13, the water use factor for single family households starts at 163.0 gdh in 2005 and decreases to 155.8 gdh by 2014. Similarly, the water use factor for multifamily households starts at 133.0 gdh in 2005 and decreases to 127.1 gdh by 2014. The water use factor for the regular commercial class starts at 35.0 gde in 2005 and decreases to 33.2 gde by 2014. Step 3 SF, MF, "Commercial- Regular" Demand: The demographics projections (from Step 1) were multiplied by the water use factors (from Step 2) to get the demand for the single family, multifamily, and commercial - regular billing categories. For example, in 2005 the 1,200 single family households are multiplied by the water use factor of 163 gdh to result in 195,600 gpd demand for the single family billing category. Step 4 "Commercial -High Demand" Customers: The demand for the commercial -high demand customers was calculated 'separately since these large customers with few employees would otherwise artificially inflate the gallons per day per employee and the resulting demand for the commercial category. The City does not expect any significant changes from the four customers in this category: Shasta, Embassy Suites, Double Tree, and Jorgensen Forge. Therefore, their combined average demand from the last five years (153,140 gpd) was used and held constant over the planning period. Step 5 Commercial- Future Demand: A block of water for future large commercial customers was added in case a large customer has an unexpected increase in demand or a new large customer is added. The City decided the size of this block of water should be approximately the size of one of their current large commercial customers, Culligan Water Bottling. This amount is 20,000 gpd and is scheduled to begin in 2006. Step 6 Non - Revenue Demand: The amount of non - revenue water expected was projected by adding the demands projected thus far (from Steps 4 -6) and multiplying by a non - revenue water factor. Section 4.3.5 showed that average non - revenue water was 17.0% of water purchases, which equates to 20.5% of water sales. Therefore 20.5% is used as the non - revenue water multiplying factor. For example, 2005 non - revenue water of 418,821 gpd was calculated by multiplying the total projected sales of 2,043,027 by 20.5 %. Step 7 Average Day Demand: The average day demand was calculated by adding the results from Steps 3 -6. The average day demand number includes conservation savings, since conservation was factored in to the water use factors, as described in Step 2. Step 8 Maximum Day Demand: The maximum day demand was calculated by multiplying the average day demand (from Step 7) by the peaking factor. The peaking factor, as discussed in Section 4.3.4, is 1.72. For example, in 2005 the average day demand of 2,461,848 gpd is multiplied by 1.72 to get a maximum day demand of 4,234,379 gpd. ,� I Planning Data and Demand 4 -14 City of Tukwila • • • 4.4 Reclaimed Water 4.4.1 Reclaimed Water Purchases and Sales • • The six most recent years of reclaimed water purchases from King County are shown in Table 4- 14. Purchases have ranged from a low of 10,555 gpd in 1999 to a high of 20,336 gpd in 2002. The annual change has ranged from negative 22.1% to positive 37.5 %. The average of the most recent three years is shown in the table since these years have been fairly stable and will be used for demand forecasting. The monthly distribution of reclaimed water is very different than that of potable water, as shown in Exhibit 4 -7. Reclaimed water is purchased almost exclusively for irrigation of ballfields. Therefore, the purchases are centered on the summer months, with little or no purchases in the non - summer months. Within the summer months, reclaimed water purchases form a bell curve that peaks in August. Month Jan Purchased 1998 0 Reclaimed 1999 0 Table Water 2000 0 4 -14 1998 -2003 2001 0 Average 2002 0 (gpd) 2003 0 Avg 2001 -2003 0 Feb .0 0 0 0 0 0 0 Mar 0 0 0 1,255 0 0 418 Apr 0 0 249 175 1,247 249 557 May 8,253 1,038 23,770 17,134 11,921 14,479 14,512 Jun 23,864 29,650 13,840 32,617 22,667 37,480 30,921 Jul 25,894 17,255 28,621 47,203 37,622 95,974 60,266 Aug 41,676 36,271 35,185 71,721 81,398 41,918 65,012 Sep 39,998 31,296 24,962 50,447 59,274 31,071 46,931 Oct 20,899 10,739 41,290 9,942 25,170 17,182 17,432 Nov 948 0 4,189 25 2,918 1,696 1,546 Dec 0 0 193 0 0 0 0 Annual Average 13,542 10,555 14,515 19,350 20,336 20,195 19,960 Annual Growth Rate n/a - 22.1% 37.5% 33.3% 5.1% -0.7% n/a ,� I (gees City Data and Demand City of Tukwila 4 -15 a C7 70,000 60,000 50,000 40,000 30,000 20,000 10,000 0 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Month Source: 5-11-04 email from Richard Takechi at the City of Tukwila. Exhibit 4 -7 Monthly Distribution of Purchased Reclaimed Water 2001 -2003 Average Reclaimed water is used for irrigating ballfield parks and streetscapes, as well as for street sweeping. Reclaimed water sales are nearly identical to reclaimed water purchases. There is essentially no non- revenue water for the reclaimed water system. This is not unexpected, since the types of uses that make up non - revenue water, such as water system flushing and leaks, are not common in a reclaimed water system. 4.4.2 Reclaimed Water Projected Demand Reclaimed water demand was projected by holding the current reclaimed water sales constant into the future, as well as adding in anticipated new customers. This demand projecting process is much simpler than for potable water since reclaimed water is not used for residential purposes, its commercial use is not based on water use factors, and there is no non - revenue component. Currently, the City sells 19,960 gpd of reclaimed water. By the year 2010, two new reclaimed water customers are expected. The first new customer is the Seattle Rendering Plant which is currently served with potable water by King County Water District 125 (WD 125). Billing records obtained from WD 125 show the demand from this customer to be 59,573 gpd on an average annual basis. The second new customer is the City of Tukwila's golf course which is currently served by a city -owned surface water right. City staff generated an estimate of 99,438 gpd average annual demand for the golf course. The results for the projected reclaimed water demand are shown in Exhibit 4 -8, which also includes the four most recent years (2000 -2003) of actual water purchases. .Z I Planning Data and Demand 4-16 mees City of Tukwila • • • • • 180,000 160,000 140,000 120,000 100,000 a cs 80,000 _ . s S -` i ,- ;- ` -. -� -_ 60,000 ` `s ' S 40,000 ` s`�sss`�s`;ss 20,0000 offortittlil i Ali i I 1 i i i N N N N N N N N N N N N N N N N N N N N N N N N 000000000000000000000000 000000000 N N N N N 0 N) C)010)-J0)(OO1N W AU 0)-.J0o(OO-N W A • Year ❑ City Goff Course ® Seattle Rendering Rant Current Customers Exhibit 4 -8 Reclaimed Water Demand (ADD gpd) 2000 -2003 Actual; 2005 -2024 Projected 4.5 Raw Water Demand As discussed in Section 4.4.2 Reclaimed Water Projected Demand, the City has a surface water right on the Green River which it uses to irrigate its public golf course, Foster Golf Links. This source is not metered, but City staff generated an estimate of 99,438 gpd average annual demand for the golf course. 4.6 Relationship Between Potable, Reclaimed, and Raw Water Demand It is important to understand the relationship between demands from the potable, reclaimed, and raw water systems. These demands are mutually exclusive, except for two instances. ,� Planning Data and Demand 4 -17 City of Tukwila • • The Foster Golf Links golf course demand appears in both the raw water demand and the reclaimed water demand. The golf course demand is included in the reclaimed water demand since the City anticipates switching to reclaimed water by 2010. However, the golf course's demand also appears in the raw water demand in the event that this switch does not occur. Portions of the Seattle Rendering Plant's demand are included in both the potable and reclaimed water demand, and the reclaimed water portion is slightly overstated. The rendering plant is currently served with potable water by King County Water District 125, but is expected to be serviced instead by Tukwila by 2010. Tukwila plans to serve them with reclaimed water for their industrial uses, but will also serve them with potable water for their domestic uses. Therefore, the potable demand includes the plant's domestic use, as represented by their employees included in the PSRC demographic data. The reclaimed water demand includes their entire demand as reported by KCWD 125. Technically, this amount should be reduced by the domestic portion, however, the number of employees was not available to allow for this calculation. This double counting of the plant's domestic use in both potable and reclaimed demand is not a concern since the overstated volume is small and there is not a resource constraint on reclaimed water. ,� I Planning Data and Demand 4-18 City of Tukwila • • • Section 6 Water Rights, Source of Supply, and System Reliability 6.1 Water Rights Under the Interlocal Agreement among the eight Members of Cascade, Cascade is to provide a full supply commitment to Tukwila. See Section 3.1.1 for further discussion of the full water supply commitment. In the past, Tukwila purchased water under contract from Seattle Public Utilities. This supply was supported by Seattle's water rights in the Cedar River Basin, South Fork Tolt River Basin, and Highline Wellfield. As of January 1, 2004, Tukwila receives this supply under a different contract arrangement. As a Member of Cascade Water Alliance (Cascade) Tukwila has entered into an interlocal agreement with the seven other Members. These Members, acting collectively as Cascade, have a contract with Seattle for delivery of water. This contract is structured as a declining block contract, with the first block of 30.3 mgd extending to December 31, 2023. A copy of the contract is included as Appendix M. This supply relies on Seattle's water rights described above. Cascade is also in the process of negotiating a water supply agreement with Tacoma Public Utilities for delivery of water from the Green River Basin related to Tacoma's Second Supply Project. Under the agreement, Tacoma will supply Cascade with 15 mgd average day demand (20 mgd maximum day demand) beginning in 2006 through December 2025. This arrangement will be supported by Tacoma's water rights in the Green River Basin. In addition to these supplies, Cascade is in the process of acquiring a water right from Puget Sound Energy (PSE) for water from Lake Tapps, located in Pierce County. Ecology issued a Report of Examination for this water right in June 30, 2003. The Muckleshoot and Puyallup Tribes, as well as the City of Auburn, filed a lawsuit challenging issuance of the water right, and the ROE has been remanded to Ecology. At this time Tukwila anticipates that issues related to the remand can be resolved successfully and that Cascade has a high probability of acquiring the Lake Tapps water right for municipal use. This will further augment water rights available to support water supply from Cascade. Tukwila does hold one water right of its own. This is a certificate for use of surface water from the Green River. Tukwila uses this water for irrigation of the Foster Golf Links. The water right is for 104.0 maximum acre feet per year, which translates to 34 mg or 0.09 mgd on an average annual basis. Existing (2005) and forecasted (2024) consumption at the golf course is estimated to be 37 mg or 0.10 mgd on an average annual basis. This results in a water right deficit of 3 mg or 0.01 mgd on an average annual basis. The City plans to augment irrigation at the Foster Golf Links with reclaimed water, which will contribute towards eliminating this deficit. Water Rights, Source of Supply, and System Reliability 6-1 Z I /nes City of Tukwila A summary of this water rights information is provided in Table 6 -1, which is adapted from DOH's Water System Planning Handbook. t � �{ W _,'rt Gg�i. - Y Water R Table 6 6 -1 1: NBC to dEi� 4 4 Y �•{4,fl... A7J ' Equates to 104 acre feet per year and 0.09 mgd. 2 Equates to 0.10 mgd. 3 Equates to -0.01 mgd. This deficit will be addressed by Tukwila's plans to augment raw water use at the Foster Golf Links with reclaimed water. 4Tukwila accesses these water rights through its membership in the Cascade Water Alliance. These water rights and CWA's "full supply commitment ", which explain that Tukwila's consumption is covered by water rights, is described in the text of Section 6.1. 5 Equates to 2.46 mgd. 6 Equates to 4.68 mgd. 6.2 Source of Supply Analysis A source of supply; analysis is required by DOH for water systems that will be pursuing water rights within 20 years to meet the demand forecast. Collectively, Tukwila's own water right and its arrangements for a full supply commitment from Cascade are adequate to meet needs for the next 20 years. Therefore a source of supply analysis is not technically required of Tukwila. However, the following information is provided relevant to the alternative sources of supply suggested by DOH:, • Enhanced Conservation Measures: 1 The conservation program under which Tukwila operates is in transition from management by the City of Seattle to management by Cascade Water Alliance. The exact content of the new conservation program is currently under development. The proposed savings goal of the Cascade conservation program is a five percent reduction in Cascade's 2010 average daily demand. For further information, see Section 5. Water Rights, Source of Supply, and System Reliability 6-2 HR I dims City of Tukwila • • Water Right Changes: 411 See discussion of water rights above. • Interties: • Tukwila has several continuous supply interties with City of Seattle transmission pipelines. As Tukwila's access to Seattle water is decreased per the Seattle /Cascade 50 year declining block contract, Cascade will provide water from alternative sources. Use of the existing interties with Seattle may be continued or discontinued, depending on exact supply arrangements from Cascade. Tukwila's emergency interties with the City of Seattle, King County Water District 125, Highline Water District, and the City of Renton are expected to remain as emergency interties only. It should be noted that Tukwila's emergency intertie to SPU's distribution system is different than the continuous supply interties to SPU's transmission pipelines discussed above. Discussions are underway, as part of Tukwila's membership in Cascade, to potentially convert Tukwila's current emergency intertie with the City of Kent to a continuous supply intertie. • Artificial Recharge: No artificial recharge programs are expected. • Use of Reclaimed Water: Tukwila considers reclaimed water a valuable component of its water supply strategy. The City has been using Class A reclaimed water from King County's Renton Treatment Plant (reclamation permit number WA- 002958 -1) since 1998. A supply line extends from the treatment plant to Fort Dent Park in Tukwila. The reclaimed water is used primarily for irrigation of ballfields, as well as a few minor uses such as street sweeping. Tukwila is examining strategies to increase its use of reclaimed water. While opportunities certainly exist, they are constrained by the combination of distribution issues (building new pipelines since the reclaimed system is separate from the potable system) and finding customers with large non - potable water needs. Therefore, ideal candidates are customers with large non - potable needs located near the current reclaimed water pipeline. Typical candidates for reclaimed water in any community include large water customers and irrigation customers. Tukwila has reviewed possibilities for reclaimed water use at its ten largest water customers (identified in Section 4.3.3) and its irrigation customers. None of the large customers are strong candidates for reclaimed water due to location and their need for potable water. Two strong possibilities for reclaimed water do exist. The first is irrigation at the Foster Golf Links. The City is planning to use reclaimed water to help offset demand from its water right on the Green River which is currently the sole source of irrigation for the golf course. The second strong reclaimed water possibility is the Seattle Rendering Plant. The plant is currently served potable water from King County Water District 125, however, it ha( 1 dales Water Rights, Source of Supply, and System Reliability 6-3 City of Tukwila is scheduled to be served by Tukwila in approximately 2010. The City is in discussions with the plant to determine the feasibility of using reclaimed water. • Treatment: No treatment changes are expected. 6.3 Water System Reliability The reliability of Tukwila's water system is based on its water right adequacy, source reliability (including a water shortage response plan), facility reliability, and interties. Each of these issues is discussed below.' Tukwila has access, via Cascade Water Alliance, to sufficient water rights to meet projected demand throughout the 20 year planning period of this water system plan. Details of this water rights adequacy is discussed in Section 6.1. That section discusses Cascade's "full supply commitment" to Tukwila which ensures Tukwila will have sufficient supply back by water rights. Tukwila's source reliability is tied to its current ultimate source of supply, the City of Seattle, since Cascade's current primary source of water is its block contract with Seattle. Seattle's system is flexible and redundant. Seattle has the capability to draw from three sources: the Cedar River watershed, the Tolt River watershed, and the Highline wellfields. This is particularly helpful in the event of an emergency such as a pipeline break or earthquake. Seattle also maintains emergency interties with other systems for backup. Seattle has a Water Shortage Contingency Plan, which Tukwila would rely on in the case of a water shortage. The plan can be found in Appendix N. It should be noted that a water shortage response plan is distinct from a water conservation plan, primarily in the purpose and time frame involved. A water shortage response plan provides guidelines to manage water supply and demand during short term supply disruptions, such as a pipeline break or drought. A water conservation plan addresses long term demand management and sound water resource management. The SPU water shortage response plan discusses operating actions and communication strategies for both a phased 'curtailment (such as affiliated with a drought) and an immediate curtailment (such as affiliated with a pipeline break). A partial list of the operating actions and communication strategies includes: • Intensify data collection and computer modeling; • Eliminate non - essential supply side uses such as flushing and reservoir overflows; • Request and/or require the elimination and/or reduction of non - essential demand side uses such as non - recirculating fountains, vehicle washing, fire fighting training, and irrigation; • Activate interties to increase supply availability; • Request that purveyors with alternative sources use them; • Brief elected officials; • Create an internal shortage advisory team; • Initiate a major public outreach campaign; • Consult with major customer groups. Water Rights, Source of Supply, and System Reliability City Of Tukwila 6-4 • • Facility reliability with respect to storage and hydraulic capacity is analyzed in detail in Section • 7. The storage capacity analysis, presented in Section 7.2, indicates there is sufficient storage capacity, as provided by the SPU transmission mains and storage. The hydraulic analysis, presented in Section 7.1, entailed modeling several scenarios to determine if sufficient water pressure is present to meet maximum day demand plus fire flows, as well as to meet peak hour demand, throughout the planning period. The modeling results found that the peak hour demand is sufficiently met through 2024. The modeling results found that maximum day demand plus fire flow was not always met and resulted in a total of 13 system improvement recommendations. Those improvements are discussed in Section 7 and are also included in the Capital Improvement Plan in Section 10. • Another facility reliability issue is that Tukwila's distribution system is well looped. This provides flexibility in the event of the loss of a particular pipeline. Tukwila's emergency interties contribute towards system reliability since they can serve as sources of supply if Tukwila's own sources were to be compromised. Tukwila maintains emergency interties with the City of Seattle, King County Water District 125, Highline Water District, the City of Renton, and the City of Kent. These interties are discussed in detail in Section 2.9. It is important to note that three of these interties (Kent, Renton, and Highline) have sources that are independent of the Seattle system. Therefore, if a major catastrophe were to debilitate the Seattle system, Tukwila would still have access to water. L.� Water Rights, Source of Supply, and System Reliability 6-5 IR h City of Tukwila • • • Section 7 System Analysis This section presents analysis of the City of Tukwila's water system. Hydraulic modeling was performed to evaluate the adequacy of existing facilities for conveying current and future flows, and to aid in determining improvements that would ensure future viability of the distribution system. 7.1 Hydraulic Analysis 7.1..1 Methodology Tukwila's water system was analyzed using the stand -alone version of the hydraulic modeling software program, WaterCAD, version 3.1. The model was obtained from Tukwila and modified to include new pipes that have been installed since the model was last updated. The WaterCAD software is a Microsoft Windows -based program that has the capability of operating as a stand- alone, or could interface with AutoCAD to enter all of the system properties and display them on the monitor as an AutoCAD drawing file. The water system model was created by Gray & Osborne, Inc. for the 1999 WSP. This model was then modified to include system upgrades that have occurred since the model was first created. Details related to the construction of the model (i.e., a list of pipes (Appendix 0) and nodes (Appendix P), and a system map, (Appendix Q) are provided in the appendixes. To accurately reflect the configuration of the existing distribution system, six pressure zones were evaluated, the 320, 340, 360, 380, 400 and 465 pressure zones. The storage facility and booster pump station, as presented in earlier sections of this plan is located in the 400 Zone. Each pressure zone was apportioned a percentage of the total water demand based on the area served by each zone, with the exception of the 10 largest potable water customers listed in Table 4 -7. The total demands projected in Section 4.3.6 were broken out by the City's six pressure zones for each of the customer categories. The demands for the 10 largest potable water customers were assigned to the appropriate nodes in the particular zone in which they are located, while the remaining demands were distributed evenly among all of the nodes in each particular zone. Table 7 -1 shows the largest potable water customers and the pressure zones in which they are located, and Table 7 -2 shows the forecasted demographics and potable water demands by customer categories and pressure zones. � 1 System Analysis 7 -1 L F al City of Tukwila 1. Source: Billing system printouts provided by the City of Tukwila from 1999 to 2003. 2. Canyon Estates Condo is�a residential customer, and demands are projected to increase over time wi h increase in population. The demands for the remaining customers are not anticipated to change over the planning period and therefore are held constant over the planning period. Pressure is the primary hydraulic parameter analyzed via computer modeling to identify system deficiencies. The target minimum system operating pressure is 30 pounds per square inch (psi) during peak hour demand (PHD) conditions with equalizing storage depleted. During fire flow conditions, a residual pressure of 20 psi (with equalizing and fire flow storage depleted) must be maintained throughout the analyzed pressure zone under maximum day demand (MDD). The general methodology of this hydraulic modeling analysis was to examine the current distribution system during various demand and fire flow conditions. According to the above pressure criteria, deficiencies were noted and distribution system improvements proposed. Further analysis was performed to verify that additional improvements associated with growth of the City meet the minimum distribution system criteria. All distribution system improvements, relating either to remedy of current deficiencies or accommodation of future growth are presented in Section 10. System Analysis 7 -2 City of Tukwila • • • Table Largest Pota • 7 -1 e Water Customers Pressure Zone e Customer Category { Customer Service Address 2005 ADD (gpd) 2010 ADD (gpd) .2024 ADD. (gpd) PZ 320 Commercial Jorgensen Forge 8531 E Marginal Way S 18,295 18,295 18,295 PZ 320 Commercial Boeing PSAM 12 -0380 9797 E Marginal Way S 40,516 40,516 40,516 PZ 360 Commercial Associated Grocers 3301 S Norfolk St 17,377 17,377 17,377 PZ 360 Commercial Boeing PSAM 12 -0370 2401 S 98th St 37,192 37,192 37,192 PZ 360 Multifamily Canyon Estates Condo'2' 15200 65th Ave S 32,029 36,263 46,734 PZ 360 Commercial Southcenter Mall 633 Southcenter Pkwy 64,111 64,111 64,111 PZ 360 Commercial Double Tree 16500 Southcenter Pkwy 30,167 30,167 30,167 PZ 360 Commercial Costco 1162 Costco Dr 22,330 22,330 22,330 PZ 360 Commercial Embassy Suites 15920 W Valley Hwy 32,839 32,839 32,839 PZ 360 Commercial Shasta Beverage 1227 Andover Park E 71,839 71,839 71,839 Total 366,696 370,929 381,401 1. Source: Billing system printouts provided by the City of Tukwila from 1999 to 2003. 2. Canyon Estates Condo is�a residential customer, and demands are projected to increase over time wi h increase in population. The demands for the remaining customers are not anticipated to change over the planning period and therefore are held constant over the planning period. Pressure is the primary hydraulic parameter analyzed via computer modeling to identify system deficiencies. The target minimum system operating pressure is 30 pounds per square inch (psi) during peak hour demand (PHD) conditions with equalizing storage depleted. During fire flow conditions, a residual pressure of 20 psi (with equalizing and fire flow storage depleted) must be maintained throughout the analyzed pressure zone under maximum day demand (MDD). The general methodology of this hydraulic modeling analysis was to examine the current distribution system during various demand and fire flow conditions. According to the above pressure criteria, deficiencies were noted and distribution system improvements proposed. Further analysis was performed to verify that additional improvements associated with growth of the City meet the minimum distribution system criteria. All distribution system improvements, relating either to remedy of current deficiencies or accommodation of future growth are presented in Section 10. System Analysis 7 -2 City of Tukwila • • • n0 o 3 c Wm d0. �1 • • Year • �. Potable • Demographics. , Water Projected Table 7 -2 Demand by Pressure '. Average Zone (for existing service area only) Day Demand`(ADD gpd) Maximum _. Day emand "'" IMDD `:gPd)��' SF IIIi MF ` . Ila3 -' t3i ,: Employment SF; .. t MF ,Re- lar1') !' Bu _. .. r MF -_ Caayon Estates tq ... Commercial q = 'Regular!., "Commercial- - " . Largest Commercial - Future Block, :' Subtotal %• Non= Revenue ; , . Total 2005 total 1,200 2,049 40,622 195,600 240,488 32,029 1,240,244 334,667 0 2,043,027 418,821 ' 2,461,848 4,234,379 PZ 320 1 0 7,196 163 0 0 251,860 58,811 0 310,834 15% 63,721 374,555 644,235 PZ 340 95 23 290 15,485 3,059 0 10,150 0 0 28,694 1% 5,882 34,576 59,471 ta PZ 465 48 12 145 7,824 1,596 0 5,075 0 0 14,495 1% 2,971 17,466 30,042 PZ400 64 179 543 10,432 23,807 0 19,005 0 0 53,244 3% 10,915 64,159 110,354 PZ 380 72 141 155 11,736 18,753 0 5,425 0 0 35,914 2% 7,362 43,276 74,435 PZ 360 920 1,694 32,293 149,960 193,273 32,029 948,729 275,855 0 1,599,846 78% 327,969 1,927,815 3,315,841 2010 total 1,308 2,540 46,035 207,972 292,667 36,263 1,383,664 334,667 20,000 2,275,232 466,422 2,741,654 4,715,646 PZ 320 1 0 6,859 159 0 0 233,206 58,811 0 292,176 13% 59,896 352,072 605,564 PZ 340 105 31 335 16,695 • 4,015 0 11,390 0 0 32,100 ' 1% 6,580 38,680 66,529 PZ 465 53 16 168 8,427 2,072 0 5,712 0 0 16,211 1% 3,323 • 19,534 33,599 PZ 400 62 203 615 9,858 26,289 0 20,910 0 0 57,057 3% 11,697 68,753 118,255 PZ 380 71 175 178 11,289 22,663 0 6,052 0 0 40,004 2% 8,201 48,204 82,911 PZ 360 1,016 2,115 37,880 161,544 237,630 36,263 1,106,394 275,855 20,000 1,837,686 81% 376,725 2,214,411 3,808,786 2024 total 2,906 7,021 71,161 452,755 845,635 46,734 2,181,019 334,667 20,000 3,880,809 795,565 4,676,374 8,043,364 PZ 320 2 • 0 7,168 312 0 0 237,978 58,811 0 297,101 8% 60,906 358,006 615,770 PZ 340 130 66 443 20,254 8,389 0 14,708 0 0 43,350 ' 1% 8,887 52,237 89,848 PZ 465 65 33 221 10,127 4,194 0 7,337 0 0 21,659 1% 4,440 26,098 44,889 PZ 400 53 296 811 8,257 37,622 0 26,925 0 0 72,804 2% 14,925 87,729 150,894 PZ 380 69 285 260 10,750 36,224 0 • 8,632 0 0 55,606 1% 11,399 67,005 115,248 PZ 360 2,587 6,341 62,258 403,055 759,207 46,734 1,885,439 275,855 20,000 3,390,290 87% 695,009 4,085,299 7,026,714 1. The 9 largest commercial customers are separated from the regular commercial customers. It should be note that the "Commercial - 9 Largest' category is not the same as the "Commercial - High Demand" category used elsewhere in this WSP. The "Commercial - High Demand" category contains only 4 of the 9 largest commercial customers. 2. Based on a peaking factor of 1.72. 3. Excludes employees of the 4 high demand customers: Shasta, Embassy Suites, Double Tree, and Jorgensen Forge. 4. Canyon Estates Condo is separated from the rest of MF since it has a very large demand. 7.1.2 Calibration Model calibration was conducted by comparing the results of actual fire hydrant flow tests with results generated by the model at the same locations. The City has performed a number of hydrant flow tests throughout the system to determine flow and static and residual pressure in known segments of pipe. For the model analysis, a single "snapshot" computer simulation was used which calculates flow throughout the system for a single point in time. This simulation assumes that the system reaches equilibrium with respect to flows instantaneously. The pressures resulting from the model run were compared with the static and residual pressures associated with the hydrant tests to determine the accuracy of the model. Successful calibration of the static pressure indicates that the network components are operating correctly, demand is appropriately allocated, and the reservoir levels are correct. Successful calibration of the residual pressure indicates that the pipe roughness coefficients are set at the appropriate levels, similar to actual conditions. Eleven (11) hydrant flow tests that covered the 340, 360, 380 and 400 pressure zones were used for calibration purposes in this modeling exercise. Table 7 -3 shows the results of each hydrant flow test along with, results of the model simulations at each location. For all the hydrant flow tests, the calculated values of the model in the static condition corresponded well with the field measurements. In all but one of the cases, the calculated static pressure is within 6.5 psi of the field measurement, indicating that the model network components are operating reasonably accurately and that the current water system demand is being appropriately modeled. In some cases the modeled pressure is higher and in some cases lower than the field measurement. Additional work to bring one set more in line would only worsen the other. The average net difference between the modeled static pressure and the field static pressure is 0.2 psi. The calculated static pressure at a private hydrant at the north -east corner of Costco Wholesale is 12.57 psi lower than the field measurement. However, the City staff present at the time of the testing recalls that the static pressure at the time of testing did seem to be unusually low and the test was done in 1998. There has been significant new development in that area since the test. Variances between ,measured and modeled static pressures are likely due to the fact that all demands were apportioned evenly throughout pressure zones with the exception of the 10 largest water customers. The difference in , the drop in pressure (i.e., static minus residual) between the field measurements and the calculated model results is less than 9 psi in all cases except at Hydrant #242 on Cascade Avenue S., located at the south -east City limit of Tukwila. Any adjustments to the friction factors to improve calibration at this location would offset calibration for another. Pressure drops in the majority of the hydrants are close between field and model. As with static, some modeled pressure drops are greater than the field and some smaller. The average net difference is approximately 2.5 psi. The differences between field and model results can be attributed to a number of factors: closed (or open) line valves that are not included in the model, inaccurate pipe friction factors or misappropriation of pressure zone demands in the model. L � 1 System Analysis HR City of Tukwila 7-4 1 • • Table 7 -3 City of Tukwila - Calibration Data Flo` D to (Zone • Static;+: .R °sidual Pres ure: . Pressure (psi) 4 � (psi) ' *Fteld Measuremegf Pressure [ode1V slue # 4 1 (340 Zone) 2 (360 Zone) 3 (360 Zone) 4 (360 Zone) 5 (360 Zone) 6 (360 Zone) 7 (360 Zone) 8 (360 Zone) 104`" P1. at 47th Ave. S Flow: Hydrant -360 Test: Hydrant -360 1,037 72 34 70.8 35.6 2.8 1991 Andover Park West and Baker Blvd. (Acura of Seattle) Flow: Calib Acura Test: Calib Acura 4,828 149 113 144.7 113.6 5.0 Tukwila Parkway and Christensen Rd. (Eagle Hardware) Flow: Calib Eagle Test: Calib Eagle 3,605 140 127 144.7 128.8 -2.8 04/07/95 Southcenter Mall at Sears Flow: SC- Hyd221 Test: SC- Hyd221 1,750 150 139 144.7 138.6 4.8 11/06/97 Interurban Ave. S and Gateway Dr. Flow: Hyd -1 Test: Hyd -2 1,900 153 140 151.6 144.8 6.3 02/23/98 Cascade Ave. S and S Glacier St. Flow: Hyd -242 Test: Hyd -241 1,750 155 122 151 128.9 10.8 02/23/98 Andover Park E (north -east corner of Costco Wholesale) Flow: Calib Costco Test: J -329 2,466 132 108 144.6 120.6 0.0 05/28/03 Fort Dent Park Flow: Calib Ft. Dent Test: Calib Ent. Ft. Dent 990 142 132 142.5 127.9 -4.5 9 (360 Zone) 10 (380 Zone) 11 (400 Zone) 06/27/04 Southcenter Parkway (Levitz Furniture Corporation) Flow: Calib Levitz Test: Calib Levitz 3,037 146 93 146.8 92.5 -1.3 11/06/97 Crystal Springs Park Flow: Hyd -112B Test: Hyd -112B 1,107 74 58 69.3 58 4.7 04/07/95 62nd Ave. S and S 153m St. Flow: Hyd -62 Test: Hyd -62 1,048 60 45 64.6 50 0.4 1. Average Day Demand was used to determine static pressures under the above - mentioned operating conditions. 2. Average Day Demand with hydrant flow was used to determine residual pressures. 3. Difference in Pressure Drop = (Static Pressure - Residual Pressure)rcid - (Static Pressure - Residual Pressure)modn, Calibration is sufficient for planning purposes, but will need additional work if the model is to be used for detailed localized design projects. 7.1.3 Modeling Scenarios The WaterCAD model was constructed with a number of different modeling scenarios to reflect system demands and piping configurations in year 2004. This section presents a description of the general setup of the modeling conditions, followed by discussion of the modeling results. 7.1.4 General Setup Some modeling scenarios were run as extended period simulations (EPS), meaning that they were evaluated under diurnal operation requirements. This incorporates demand variations that exist during the course of a 24 -hour period and aids in identifying deficiencies in the ability to fill reservoirs during peak day conditions. The diurnal curve used for the extended period simulations is assumed to be equivalent to the diurnal demand curve in the 1991 WSP, prepared by Horton Dennis & Associates, Inc. The equivalent diurnal curve is shown in Exhibit 7 -1. A value of 1.0 equals the average demand on the day of concern. Scenarios not noted as extended period simulations were run as steady- state, evaluating the system at a single point in time. This method is used primarily for investigating fire flow conditions. In the following discussion of modeling results, comparisons are made between fire flow goals and available fire flow. Fire flow goals represent the applicable fire flow requirement as set by the City Fire Department. In general, the City meets the fire flow goals in the future with implementation of the capital improvements listed in Section 10. Available fire flow is the amount of water that can be withdrawn from a single hydrant without dropping pressure throughout the zone to less than 20 psi. Thus, a pressure somewhat remote from the flowing hydrant (but in the same pressure zone) could limit available fire flow. Fire flow simulations assume that water levels in storage reservoirs are set with equalizing and fire flow storage fully depleted. J System Analysis 7-6 HR City of Tukwila • • • • • 6 1 1.50 1.00 0.50 0 6 12 18 24 Hour Exhibit 7 -1 City of Tukwila's Diurnal Curve based on 1991 WSP 7.1.5 Modeling Results The City provided a list of capital improvements that are in progress of design or are currently being proposed for the 2005 to 2010 time frame. These improvements were entered into the model base prior to analysis and will be shown in the Capital Improvement listing in Section 10, if they have not been funded as yet. The following scenarios assume that the capital improvements identified by the City have been completed and any improvements listed are in addition to those. Scenario 1 — Fire Flow Analysis, 2005 Demands For this scenario, the existing distribution system is evaluated under present conditions (i.e., year 2005 maximum day demands and current fire flow requirements). Fire flow requirements for this stage of modeling generally consisted of 1,000 gpm at each node in residential areas and 1,500 gpm at each node in commercial areas, except for specific areas of the City where higher flows are required. The fire flow requirements are listed in Table 7 -4. Reservoir levels assume equalizing and fire flow storage are fully depleted, i:e. the conditions at the end of the 1 hour fire flow. Table 7 -4 Fire Flow Requirementstli Residential Areas General All 1,000 Commercial Areas General All 1,500 North Boeing Field Bounded by the north city limits, East Marginal Way S, and the Duwamish River. PZ 320/ PZ 360 3,000 to 4,000 Boeing PSAM 12 -0380 East marginal way, north of S. Norfolk St. PZ 320 13,000 Foster (Gateway Plaza) East of Interurban Ave. S. to the Green River between 42nd Ave. S. and Martin Luther King Jr. Way S. PZ 360 2,000 to 3,000 Tukwila Hill (North end) West of Interurban Ave. S., bounded by 52nd Ave. S., 53rd Ave. S., and S. 139th St. PZ 360 3,000 Tukwila Hill (Commercial area) East of Interurban Ave. S. to the Green River between S. 139th St. and S. 144th St. PZ 360 3,000 to 4,000 Tukwila Hill (Canyon Estates) East of 65th Ave. S. between S. 1515t St. and S. 153rd St. PZ 360 3,000 to 4,000 Central Business District Bounded by the area just north of Southcenter Blvd, West Valley Highway, S. 180th ST. and Southcenter Parkway. PZ 360 4,500 to 8,000 . As provided by City of Tukwila Fire Department. �, I /tees City Analysis City of Tukwila 7 -7 The modeling for this scenario resulted in a number of nodes unable to meet the fire flow requirements. In some of the cases water lines less than 8- inches in diameter were feeding junction nodes on "dead -end" lines. Water lines of this size are physically unable to supply 1,000 gpm, therefore these nodes are classified as deficient. There were 12 such nodes scattered throughout the different pressure zones. The remainder of the analysis excludes these "dead - end" lines. There were 24 nodes where the required fire flow was not met. Of these, 2 of the nodes were in the north end of the City in the North Boeing Field 320 Zone, and the northern extent of the City 360 Zone. The remainder of the nodes was in the Tukwila Hill neighborhood and the CBD area of the City 360 Zone. The hydrants at Boeing on East Marginal Way S. and at Associated Grocers were limited by 20 psi at the hydrants to less than the required fire flow. The hydrant at Boeing along East Marginal Way S. is estimated to deliver 11,200 gpm as compared to the requirement for 13,000 gpm, while the available fire flow at Associated Grocers is estimated at 2,160 gpm as compared to a requirement of 3,000 gpm to 4,000 gpm. Moving the PRV south of South Norfolk Street would correct the deficiency. The following improvements are needed to address inadequate available fire flow in the Tukwila Hill neighborhood and the CBD areas: • Construct new 8" water main along S. 137th Street and 53`d Avenue S. to S. 139th Street (W- 002). • Upgrade of the: water main along 53rd Avenue S. (W -003) between S. 139`h Street and S. 140th Street from 6" to 8" diameter pipe. • Construct new 8" water line along Macadam Road (W -005) between S. 152nd Street and Southcenter Blvd. • Upgrade of the transmission main along Southcenter Blvd. (W -011) between Andover Park East and 65`h Avenue S. from 8" to 10" diameter pipe. • Upgrade of the transmission main along 65th Avenue S. (W -012) between S. 1515` Street and Southcenter Blvd. from 8" to 16" diameter pipe. • Construct new 8" water main along Christensen Road to the corner of Christensen Road and Christensen Trail (W-015). This is currently private property. • Upgrade of the water main along Minkler Blvd. east from the intersection of Industry Drive (W -019) from 8" to 10" diameter pipe. • Upgrade of the water main along S. 180th Street east from the intersection of Andover Park East (W -021) from 10" to 12" diameter pipe. Scenario 2 — Peak Hour EPS, 2005 Demands For this scenario, the existing distribution system is evaluated under present conditions (i.e., year 2005 peak hour demands). Almost all nodes maintain pressures of at least 30 psi throughout the 24 -hour period modeled. For every hour of operation, there was only 1 node in the 400 Zone (out of 339 total nodes) that modeled pressure less than 30 psi. However, this node is located on System Analysis City of Tukwila 7-8 • • the suction side of the high pumps at North Hill pump station and can be ignored for this criterion. There are no Capital Improvements needed to meet this criterion. • • Scenario 3 — Peak Hour EPS, 2024 Demands with 2005 CIP For this scenario, all the proposed capital improvements were included in the modeled distribution system and evaluated to identify any system deficiencies under 2024 peak hour demands assuming that the 2005 Capital Improvements were constructed. Again, there is only 1 node in the water system that encounters a pressure drop to below 30 psi during the peak hour demand at the hours of 1 -3 (1:OOam to 3:OOam) and this is the node on the suction side of the high pumps at North Hill pump station. No Capital Improvements are needed to meet this criterion. Scenario 4 — Fire Flow Analysis, 2024 Demands with 2005 CIP For this scenario, all the proposed capital improvements were included in the model and evaluated to see fire flow deficiencies in the system. Four fire hydrants (nodes) in the City 360 zone are limited by 20 psi at the hydrant to less than the required fire flow. Two of these are located in the Tukwila Hill neighborhood and the remaining are in the Central Business District. The following additional improvements are needed to address inadequate available fire flow: • Up rade of the water main along 52nd Avenue S. (W -001) between Interurban Avenue S. and 53ra Avenue S. from 6" to 8" diameter pipe. • Upgrade of the water main along S. 153rd Street (W -012) from 65`t' Avenue S. to the corner of the loop from 8" to 10" diameter pipe. • Upgrade of the water main along Black Drive (W -015) from 8" to 10" diameter pipe. • Upgrade of the water main along Corporate Drive S. (W -016) from 8" to 10" diameter pipe. • Construct new 12" water line along Minkler Blvd. (W -017) from existing dead -end line east of Southcenter Parkway to Andover Park West. Scenario 5 — Peak Hour EPS, 2010 Demands with 2005 CIP This scenario was run to determine which of the 2024 improvements were needed by 2010. Again, there is only 1 node in the water system that encounters a pressure drop to below 30 psi during the peak hour demand at the hours of 1 -3 (1:OOam to 3:OOam) and this is the node on the suction side of the high pumps at North Hill pump station. Since there were no improvements needed to meet this criterion in 2024, none are needed here. Scenario 6 — Fire Flow Analysis, 2010 Demands with 2005 CIP This scenario was run to determine which of the 2024 improvements were needed in 2010. There were no problems with meeting the minimum fire flow requirements in the system with only the 2005 Capital Improvements. No additional capital improvements are needed. fa( 1 mew System Analysis 7 -9 City of Tukwila A full list of the improvements considered during this analysis is included in Section 10, Capital Improvement Plan. Construction sequence should be coordinated with other capital improvements scheduled for the city such as road or wastewater improvements. 7.2 Storage Analysis Tukwila has limited storage available within the system boundaries. There is a single 2.0 mg tank that is set at an elevation that requires pumping operate. Following conversations with DOH staff, it has been assumed for this WSP that the SPU transmission mains and storage will provide additional !storage for the Tukwila distribution system. The number and location of SPU/Tukwila connections, in conjunction with numerous emergency interties with neighboring districts and municipalities, provide for sufficient flow at sites throughout the Tukwila system to meet any needs that are typically supplied through system storage. Thus, there is no system specific analysis for storage, and no additional storage is needed. 7.3 Source Analysis Tukwila receives water from the SPU transmission system through its membership in the Cascade Water Alliance. Cascade is obligated to supply Tukwila with water to meet the demand discussed in this Water System Plan. More information on the supply agreement between Tukwila and Cascade is found in Section 3.2.1. I System Analysis H 1 R City Of Tukwila 7 -10 • Section 8 Drinking Water Quality Compliance and Monitoring 8.1 Introduction This section is a review of current Washington Administrative Code (WAC) 246 -290 and Federal drinking water regulations and an assessment of Tukwila's compliance between 1999 and 2004. This section provides a brief overview of the existing water system and describes system components in regard to applicable regulations, monitoring practices, and compliance status. This section also identifies possible future regulations and assesses the implications for Tukwila. Because Tukwila purchases all of their drinking water through Cascade Water Alliance from Seattle Public Utilities (SPU), Tukwila does not own or operate a source of supply. SPU is responsible for meeting requirements that apply to source water and treatment. Because Tukwila owns and operates their distribution system, Tukwila is responsible for meeting requirements that apply to drinking water within this system. Table 8 -1 indicates which system is responsible for compliance with each regulation. Table 8 -1 presents a list of the Federal drinking water regulations that are currently effective. All of these rules have been adopted by Washington State in the Washington Administrative Code (WAC) 246 -290 and are administered by the Washington State Department of Health (DOH). Table 8 -1 Drinking Water Quality Requirements and Compliance Responsibilities Rule and Date Rule Became Effective National Primary Drinking Water Requirements (1976) Total Trihalomethane Rule (1979) Phase I (VOCs) and Phase II and Phase V (IOCs and SOCs) - 1989, 1993 respectively) Parameters Regulated Physical and chemical Monitoring location Distribution system entry -point Trihalomethanes Within the distribution system Volatile Organic Chemicals (VOCs), Inorganic chemicals (IOCs), and Synthetic Organic Chemicals (SOCs) Distribution system entry- point* Responsibleutility SPU Tukwila SPU and Tukwila* Total Coliform Rule (1990) Coliform and Disinfectant Residual Within the distribution system Tukwila MR1 Drinking Water Quality Compliance and Monitoring I City of Tukwila 8-1 Table 8 -1 Drinking Water Quality Requirements and Compliance Responsibilities Rule and Date Rule Became Effective Parameters Regulated Monitoring location Responsible utility Surface Water Treatment Rule (1990) Turbidity, Disinfection, viruses, and Giardia lamblia After treatment, at the distribution system entry- point, and within the distribution system SPU and Tukwila Lead and Copper Rule (1992) and Lead and Copper Rule Minor Revisions (2000)) Lead and Copper At taps and within the distribution system Tukwila Interim Enhanced Surface Water Treatment Rule (2002) Turbidity and Cryptosporidium After treatment, and at the distribution system entry -point SPU Arsenic Rule (2002) Arsenic Distribution system entry -point SPU Radionuclides Rule (2003) Radionuclides Distribution system entry -point SPU Stage 1 Disinfectant/Disinfection By- Products (2002) Disinfectant Residual, Total Trihalomethanes, and Haloacetic Acids Within the distribution system Tukwila *Asbestos is monitored in distribution system. All other contaminants covered in these Rules are measured after treatment_ 8.2 Compliance with Drinking Water Regulations As shown in Table 8 -1, Tukwila is responsible for complying with regulations that apply in Tukwila's distribution system. This section describes Tukwila's monitoring and compliance with these rules. These regulations and associated parameters are: • Total Coliform Rule — total coliform • Surface Water Treatment Rule - disinfectant residual • Inorganic Compounds Phase II - asbestos • Lead and Copper — lead, copper, and water quality parameters • Stage 1 Disinfectant/Disinfection By- Products Rule — disinfectant residual, total haloacetic acids (HAAS), and total trihalomethanes (TTHM). Tukwila coordinates monitoring of these parameters with SPU. For all distribution system monitoring, SPU collects samples and provides laboratory analysis as part of the purchasing agreement with Tukwila. Additionally, since SPU provides drinking water to other utilities throughout the region, DOH - approved monitoring plans have been developed for compliance with the Total Coliform and Lead and Copper Rules. Drinking Water Quality Compliance and Monitoring 8-2 City of Tukwila • • • 8.2.1 Total Coliform The Total Coliform Rule, as adopted by Washington State and included in WAC 246 -290, requires drinking water suppliers to collect coliform samples from representative points throughout the distribution system each month. The required number of samples is determined based on population. As part of . compliance, the supplier must develop and document a monitoring plan. If a system collects less than forty samples per month, a maximum contaminant level (MCL) violation occurs if more than one sample per month is positive for the presence of coliform. The system must then collect a repeat sample to determine the presence of fecal coliform or E. coli. The presence of these bacteria in a repeat sample comprise an acute violation. SPU and its wholesale customers have participated in a regional, DOH - approved coliform monitoring program since 1972. Under this agreement, SPU and its purveyors sample at a rate of at least 0.7 samples per 1000 customers per month. Tukwila establishes and maintains coliform sampling sites, including adding new sites as population increases. SPU conducts the coliform monitoring within Tukwila's system. However, Tukwila is responsible for conducting any repeat sampling following a positive coliform result. Tukwila's last update to their individual monitoring plan was completed in 2004. This plan is located in Appendix X. Tukwila's required number of monthly coliform samples is based on the number of residential and non - residential customers Tukwila serves each month. According to population information presented in Section 4, Tukwila currently serves a residential population of more than 7,700. In its most recent Water Facilities Inventory, Tukwila reported serving an estimated transient population of 12,000 people between February and October, 14,000 people in November and January, and 15,000 people in December. Based on previous assessments of Tukwila's residential population, Tukwila collected 12 -14 samples per month in 2004. The number of samples varied due to the increasing population of non - residents during November, December, and January. However, now that newer residential population data are available (Section 4 of this Plan), Tukwila will need to collect 14 samples between February and October (when serving a residential population of 7,700 plus 12,000 non- residents); 15 samples in November and January (when serving a residential population of 7,700 plus 14,000 non - residents); and 16 samples in December (when serving a residential population of 7,700 plus 15,000 non - residents). Table 8 -2 lists the locations of Tukwila's four existing sample stands. Multiple coliform samples are collected from each location each month. Sample Site TU -4 was added in 2000. Sample Stand ID TU -1 • TU -2 TU -3 TU -4 Table 8 -2 Tukwila's Total Coliform Monitoring Locations Location 65th Ave S & Southcenter Blvd. S. 122°d St. & 46th Ave. S. 1232 Andover Park West. 53td Ave S. Near S. 140th St. Pressure Zone 360 360 360 360 L,� 1 Drinking Water Quality Compliance and Monitoring H �.a� City of Tukwila 8-3 Tukwila has been in compliance with the Total Coliform Rule since 1999. In April, 2003, Tukwila detected coliform in two samples, exceeding the non -acute coliform MCL. Repeat sampling indicated that no fecal coliform were present. 8.2.2 Disinfectant Residual The Surface Water Treatment Rule (SWTR) establishes treatment techniques for surface water systems, including those using groundwater under the influence to reduce the risk of waterborne disease. Additionally, this regulation requires a minimum disinfectant level of 0.2 mg/L free chlorine at the entry point of the distribution system and maintenance of a detectable residual or heterotrophic plate count samples with 500 or less CFU /ml in at least 95% of samples collected throughout the distribution system each month. Distribution system samples are collected by SPU at the same locations and times as Tukwila's total_ coliform monitoring samples. SPU is responsible for meeting the required disinfectant residual level at the point of entry to Tukwila's distribution system. In addition to the monitoring requirements and minimum level required by the SWTR, the Stage 1 Disinfectant/Disinfection By- Products Rule establishes a Maximum Residual Disinfectant Level (MRDL) of 4.0 mg/L free chlorine in the distribution system. Disinfectant residual measured in samples collected at the same time and location as total coliform samples is used to determine compliance. Compliance is calculated using the running annual average of each of these samples. According to compliance data collected between 2000 and 2004, Tukwila's disinfectant residual has ranged from 0.08 mg/L to 2.5 mg/L of residual with an average of about 1 mg/L throughout the distribution system. 8.2.3 Asbestos Asbestos, which was regulated as part of the Phase 2 Rule, is the only inorganic contaminant that must be monitored in the distribution system. The MCL for asbestos is 7 million fibers longer than 10 microns per liter. Systems containing asbestos cement piping must complete monitoring at one location once every nine years. Tukwila's distribution system contains about 300 lineal feet of asbestos cement water main (0.12% of total feet of pipe). The asbestos cement piping is located in the Fort Dent park. Historically, DOH has not required systems to monitor for asbestos if asbestos cement piping makes up less than 10% of the distribution system piping material. Tukwila is not required to conduct monitoring. 1 Drinking Water Quality Compliance and Monitoring 8-4 fees City of Tukwila • • • • • 8.2.4 Lead and Copper The Lead and Copper Rule establishes action levels, monitoring, and compliance requirements for lead and copper levels at customers' taps. To meet the established action levels, ninety percent of all samples have lead levels equal to or less than 0.015 mg/L and copper levels equal to or less than 1.3 mg/L. If these action levels can not be met, systems must implement public education and a strategy for meeting these levels. A regional, DOH - approved lead and copper monitoring program was adopted by SPU and its purveyors. This type of program is appropriate because SPU applies corrosion control as part of their drinking water treatment. The most recent lead and copper monitoring effort was begun in 2003 and completed in 2004, consisting of lead and copper samples collected at 375 customers' taps in the region. Samples were collected twice within a one -year period. Three homes were sampled in Tukwila. Table 8 -3 presents the results. Table 8 -3 2003 Lead and Copper Monitoring Results Regional Results # of homes exceeding Action Level Lead (mg/L) Copper (mg/L) 0.015 0.0079 11 Tukwila # of homes exceeding. Action Level 0 0 1.3 0.2 0 The next round of lead and copper tap sampling will take place in 2005. 8.2.5 Disinfection By- Products The USEPA has developed two rules to address disinfection by- products (DBPs). The Total Trihalomethane (TTHM) Rule was finalized in 1979 and set an MCL of 0.10 mg/L for the total levels of trichloromethane, dibromochloromethane, bromodichloromethane, and tribromomethane. The TTHM Rule applied to all systems providing a disinfected water supply. The Stage 1 Disinfectant/Disinfection By- Products Rule was finalized in 1998 and systems had to comply in 2002 or 2004, depending on system size and source of supply. The Stage 1 DBP Rule applies to all systems that add disinfectant to their drinking water supply and completely replaced the TTHM Rule in 2004. As adopted in the WAC 246 -290, the Stage 1 DBP requirements are not enforced in systems that purchase all of their water and do not apply any treatment. Table 8 -4 presents the MCLs established by the Stage 1 DBP Rule. The MRDL for chlorine established by the Stage 1 DBP Rule is described above. The requirements for TTHMs, HAAS, and bromate apply to Tukwila's drinking water supply. TTHMs and HAAS are for systems using chlorine or chloramine to provide a disinfectant residual in the distribution system. SPU implemented ozonation at the Cedar River Water Treatment Facility in 2004. As part of this L. 1 Drinking Water Quality Compliance and Monitoring 8-5 R 1 City of Tukwila change in treatment, the MCL for bromate established by the Stage 1 DBP Rule applies to Tukwila's drinking water. Table 8 -4 Stage 1 DBP Rule MCLs Disinfection By- Product MCL (mg/L) Total Trihalomethanes (sum of chloroform, bromodichloromethane, dibromochlormethane, and bromoform) Haloacetic acids (sum of dichloracetic acid and trichloroacetic acid) Chlorite' Bromate2 Applies to systems using chlorine dioxide as a disinfectant. 2 Applies to systems using ozone as a disinfectant 0.080 0.060 1.0 0.010 Between 1999 and 2004, Tukwila conducted TTHM monitoring to meet requirements in WAC 246 -290. Tukwila's running annual average TTHM ranged from 0.020 to 0.027 mg/L from 2000 to 2003. It is recommended that Tukwila implement monitoring per Stage 1 DBP Rule requirements. While this Rule does not currently apply to Tukwila, a future DBP Rule will. DBP monitoring in compliance with Stage 1 would assist Tukwila by 1. Establishing baseline information on DBPs in Tukwila's distribution system. Tukwila will have an understanding of DBPs in their system and have an understanding of potential compliance issues before the Stage 2 DBP Rule is promulgated. 2. Preparing for DBP requirements. As part of compliance with the next DBP Rule, Tukwila will be expected to meet Stage 1 DBP requirements. 8.3 Anticipated Future Regulations Table 8 -5 summarizes regulation that the USEPA has proposed that would affect drinking water provided by Tukwila. Currently, the USEPA is also reviewing the Total Coliform Rule to determine the best method for regulating distribution system water quality with respect to microbial contaminants. Revisions may include requirements to address finished water quality in the distribution system as well as evaluate additional or alternative monitoring strategies that would be more cost effective and maintain or improve public health. A proposed rule is anticipated by 2006. I-- 1.ti\ I Drinking Water Quality Compliance and Monitoring 8-6 City of Tukwila • • • • • Table 8 -5 Proposed Drinking Water Regulations Rule Long Term 2 Enhanced Surface Water Treatment Rule Status Proposed — 2003 Promulgated — 2005 Effective -2008 Stage 2 Disinfectants/Disinfection By- Products Rule Proposed — 2003 Promulgated — 2005 Effective -2008 Description This regulation will add to existing Cryptosporidium requirements and enhance public health protection from waterborne pathogens. This regulation will lower disinfection by- product MCLs and change monitoring. Of the regulations shown in Table 8 -5, Tukwila will be responsible for carrying out compliance activities for the Stage 2 Disinfectants/DBP Rule. The Long Term 2 Enhanced Surface Water Treatment Rule will apply to drinking water quality during and after treatment. The Stage 2 DBP Rule was proposed in August 2003 and will likely be effective in 2008. This Rule is implemented in two stages, each stage establishing a set of MCLs. In the first stage, the TTHM MCL is 0.120 mg/L and the HAAS MCL is 0.100 mg/L. In the second stage, the MCLs are decreased to 0.08 mg/L and 0.06 mg/L for TTHM and HAAS, respectively. Compliance will be determined using the annual averages for each sampling location instead of an annual average across results for entire system. Systems will also need to be in compliance with Stage 1 DBP requirements. Systems will need to identify appropriate DBP sampling locations within the distribution system using the Initial Distribution System Evaluation approach to determine locations with a potential for high DBPs. As a consecutive system, purchasing all their drinking water from SPU, Tukwila will comprise a portion of a combined system consisting of SPU and any utilities purchasing Seattle's water. Because the combined system serves more than 10,000 people, Tukwila will need to comply with the Stage 2 Rule two years after promulgation. 8.4 Water Quality Complaints Tukwila investigates water quality complaints to eliminate the possibility of a cross- connection and implements corrective action such as flushing, as needed. Tukwila began documenting customer water quality complaints in 2003. Tukwila estimates that they receive less than 20 water quality complaints each year. In the past, Tukwila has received seasonal taste and odor complaints due to seasonal algae at the Cedar River source. However, Tukwila does not anticipate receiving these complaints because of SPU's new treatment plant, including ozonation which will address taste and odor, at Lake Youngs. Other complaints are typically water discoloration, which can be caused by dead -end mains or activities such as hydrant usage. 8.5 Consumer Confidence Reports Under the Consumer Confidence Report Rule promulgated in 1998, community water systems are required to provide an annual Consumer Confidence Report (CCR) describing the source of their drinking water and levels of any contaminants found. The annual report must be supplied to all customers by July 1 and must include: ha 1 mew Drinking Water Quality Compliance and Monitoring &7 City of Tukwila • • • Name and phone number of a contact person; • Description of source water; • Definitions; • A table describing detected regulated and unregulated contaminants, measured levels, MCLs and Maximum Contaminant Level Goals, and likely sources; • If an MCL is violated, information on health effects; and • If EPA requires it, information on levels of unregulated contaminants. Tukwila is in compliance with the CCR Rule. Annual CCRs have been published as required. 8.6 Summary of Regulatory Status and Monitoring Requirements Review of water quality data between 1999 and 2003 indicates that Tukwila has been in compliance with all effective Federal and State drinking water regulations. Table 8 -6 summarizes applicable regulations and Tukwila's compliance status. Table 8 -6 Summary of Regulations and Compliance Status Regulation Requirements Status Compliance? Recommendations Phase I, Phase II, • Written Plan Phase V Regulations • Monitoring • N/A — applies to water prior to entering Tukwila's system. N/A None Radionuclides • Monitoring • N/A — applies to water prior to entering Tukwila's system. N/A None Surface Water Treatment Rule • Monitoring chlorine residuals where surface water enters distribution system • Monitors chlorine residuals throughout distribution system • Meets minimum C12 requirement • SPU monitors at point of entry to distribution system. Yes None Interim Enhanced Surface Water Treatment Rule • Monitoring turbidity where surface water enters distribution system • N/A — applies to water prior to entering Tukwila's system. N/A None Source Water Protection Program Filter Backwash Rule • Watershed Protection Plan • Monitoring • N/A — applies to water prior to entering Tukwila's system. • N/A — applies to water prior to entering Tukwila's system. N/A None N/A None L, Drinking Water Quality Compliance and Monitoring R 1 City of Tukwila 8-8 • Table 8 -6 Summary of Regulations and Compliance Status Regulation Requirements Status Compliance? Recommendations Total Coliform Rule • Written Plan • Monitors throughout distribution • Monitoring system • Meets MCLs Yes Stage I D/DBP Rule • Written Plan • N/A — Applies to systems that • Monitoring disinfect N/A Asbestos Rule It is recommended that Tukwila update their Coliform Monitoring Plan and review sample locations. It is recommended that Tukwila implement monitoring per Stage 1 requirements • Monitoring • N/A — System does not contain distribution Asbestos piping. N/A N/A system Lead and Copper • Monitoring • Monitors Rule • Treatment • Meets MCLs Yes None Optimization CCR and Public • Annual Reports • Consumer Confidence Reports Notification Rules • Reporting as published annually Yes None needed Table 8 -7 provides a summary of water quality monitoring requirements for Tukwila. The table includes the parameters to be monitored, sampling location, and frequency. Table 8 -7 is intended to be a guide; detailed requirements are available in WAC 246 -290 and by contacting DOH. Table 8 -7 does not include any DOH - granted monitoring waivers. L.� I Drinking Water Quality Compliance and Monitoring 8-9 am R City of Tukwila Partmett Table 8 -7 Summary of Existing Monitoring Requirements R gullatoiy 740K-A41501- e ent tstr button System Location": uenc� Inoreanic Chemicals Asbestos _ NPDWR One location within distribution system Once every nine years Lead Copper Lead and Copper Rule Customer taps: Once every three years (2003, 2006) Bacterioloeical Total Coliform Total Coliform Rule Throughout distribution system 9 samples per month Chlorine Residual Stage I D/DBP Rule Throughout the distribution system in same location as Total Coliform Sites 40 samples per month Disinfection By- Products Trihalomethanes Haloacetic Acids Stage I D/DBP Rule Distribution System (4 per disinfected source): 3 at average hydraulic residence time 1 at maximum hydraulic residence time Quarterly 1. All drinking water parameters are also regulated by WAC 246 -290 • • • Section 9 Operations and Maintenance 9.1 Introduction This section summarizes the operation and maintenance programs and procedures implemented by the City of Tukwila to maximize performance and reliability of the potable water supply system. Extensive research has been made to Tukwila's Water Utility Operations Plan (Appendix R). This was supplemented by Direct Review of Water Operations and Maintenance Procedures. 9.2 Organization Structure and Responsibilities The City of Tukwila Public Works Department is responsible for water, sewer, drainage, construction, engineering, construction inspection, fleet and facilities and street functions. The Tukwila Water Utility operates under the direction of the Public Works Director. The Public Works Operations Manager oversees the supervisory responsibilities for the Water Utility's operation and maintenance as well as sewer and surface water. Day to day activities are conducted by the Water System Supervisor who reports to the Public Works Operations Manager. The Water Supervisor also oversees water quality monitoring and cross - connection control. The Public Works Engineer covers budgeting, new or upgraded system design, operations' analysis, and the construction of capital improvements as outlined in the Water Comprehensive Plan. Figure 9 -1 shows the organizational structure for water operations. 9.2.1 Director of Public Works The Director of Public Works directs all activities and programs within the Public Works Department including the City's services for potable water. 9.2.2 City Engineer The City Engineer plans, organizes, staffs and manages the Engineering Division. Responsibilities involve development of the six -year capital improvement program for the water utilities. The City Engineer is also responsible for annual capital projects including development of scopes -of -work and consultant selection. Operations and Maintenance 9 -1 City of Tukwila O O o m a 3 d m m Tukwila Public Works Department - Water Utility Organization V6 ;!4!4x3 Public Works Director Maintenance Operations Mgr. Admin Support Technician — Internal Operations Manger Water Super- intendent Transportation Superintendent Sewer/ Surface Water Superintendent Admin Support Tech Facilities Foreman Maint & Opr. 1 Specialist (4) Traffic Road - Control way Equipment Rental _Facilities [fleet Supervisor Supervisor — Facilities Opr. Technician (2) —Lead Facilities LCustodian Facilities Custodian (6) — Foreman ( .5) Maint & Opr. Specialist Fleet Technician (3) — Foreman — Maint & Opr. Specialist (6) • Development Services Sewer — Engineer (3) —Project lnspector —Admin Support Tech Foreman Senior Maint & Opr. Specialist Surface Water FForeman (1.5) Maint & Opr. Specialist (4) Public Works Coordinator — Public Works Analyst — Admin Support Assistant Project Management • City Engineer — Senior Engineer — Engineer — Project Manager (2) — Project lnspector (2) - - Admin. Support Assistant GIS/CAD Engineering Technician Utility Systems Senior Engineer (2) Transportation Systems Senior Engineer (2) • • • 9.2.3 Senior Project Engineer The Senior Project Engineer, under the direction of the City Engineer, is responsible for overseeing assigned annual capital projects. Tasks include development of project schedules, scope -of -work and consultant selection. The Project Engineer also tracks progress through the development of PS &E, coordinates bidding and contract execution, and is tasked with submittal review and approval, progress reports, pay estimates, construction management/inspection and project closeout. 9.2.4 Maintenance Operations Manager The Maintenance Operations Manager oversees maintenance activities within the public works department. For the water supply system, the Maintenance Operations Manager has budgetary responsibility and directs the Water Maintenance Superintendent in carrying out water system maintenance responsibilities. 9.2.5 Water Maintenance Superintendent The Public Works Water Maintenance Superintendent is responsible for planning, organizing, staffing and managing within the Operation and Maintenance Division. For the water supply system, responsibilities include repair and maintenance of the City's -water system including transmission and distribution mains, storage facilities, and booster pump stations. The Superintendent oversees all annual maintenance programs including flushing, valve exercising, and source water quality and reservoir inspections. The Superintendent is also tasked with budget development for the Water Enterprise Fund. 9.2.6 Water Utility Foreman The Water Utility Foreman is responsible for all operation and maintenance activities associated with water supply, distribution, pumping and storage systems including distribution main flushing, valve exercising, and well monitoring. Responsibilities also include meter reading/repair, water quality monitoring and record keeping, and Water Conservation and Cross Connection Control programs. Responsibilities include construction throughout the distribution system including looping of dead -end lines, extension of water mains, valve installation and hydrant replacement/installation. The Water Utility Foreman oversees emergency repairs of water main breaks and utility locates. The Water Utility Foreman also manages customer inquiries related to dirty water, pressure extremes and taste and odor. This position tracks and coordinates all inquiries with the Operations Manager until the problem is resolved. Operations and Maintenance 9-3 City of Tukwila 9.2.7 Utility Maintenance Worker Utility maintenance workers, along with the foreman, perform all field maintenance and operation functions for the City's water utility. 9.3 Operator Certification The City of Tukwila is in full compliance with current laws and regulations regarding staff certification and training. 6 Tukwila Public Works employees possess Department of Health certifications. Table 9 -1 is a summary of personnel certifications and experience in water system operations. Employees are supported and encouraged to meet continuing education (CEU) requirements by attending work related classes, refresher courses, safety training and regional conferences. To meet the staff educational needs, the City includes a budget line item in the annual O &M budget devoted to training. Table 9 -1 Water Utility Personnel Certification Position Name Certification M &O Superintendent Water Bryan Still WDM4, WDS, CCS, WTPO -IT M &O Foreman, Water Jim Peterson WDM2, WDS, CCS M &O Specialist, Water Rod Langford WDM2, WDS, CCS M &O Specialist, Water Todd Reedy WDM2, CCS M &O Specialist, Water' Joe McCain WDM1, WDS, CCS M &O Specialist, Water Stan Harris WDM1, CCS, WTPO -IT 9.4 System Operation and Control 9.4.1 Source of Supply The source of Tukwila's water is the City of Seattle's Cedar River Supply System. Raw water is diverted from the Cedar River at Landsburg, where it is screened, chlorinated, and fluoridated before being sent to Lake Youngs. At the outlet of the Lake Youngs regulating basin, located east of Renton, water receives further, disinfection treatment through the use of ozone and UV light. The water is then treated with lime to adjust pH levels for corrosion control and chlorinated for disinfection prior to customer delivery. The water is then transmitted to the Puget Sound area via four high - pressured transmission mains, known as the Cedar River Pipelines. The City of Seattle exercises all control over source treatment and transmission. 9.4.2 Major Water Facilities The Tukwila water system consists of seven primary supply stations, one secondary supply intertie, one storage reservoir, one booster -pump station, about 45 miles of transmission and Operations and Maintenance 9-4 haZ times City of. Tukwila • distribution pipelines, and many valves and other appurtenances. Table 9 -2 summarizes the • major facility and valve elements of the Tukwila water system. • • The City of Tukwila uses pressure reducing valves (PRVs) and check valves to maintain adequate system pressures, direct flow in the system, and isolate the various pressure zones. PRVs are also used at supply stations and interties. The system contains 9 PRVs and 11 check valves. The Tukwila water system currently operates the 2 million gallon (MG) North Hill Reservoir storage reservoir that operates at the nominal water surface elevation of 250 feet mean sea level (MSL). The reservoir is the sole storage facility for the City. Tukwila operates a single booster pump station with two sets of pumps configured to pump from the North Hill reservoir to the North Hill pressure zone and/or to the 360 zone. Normal operation involves pumping only to the North Hill zone. Table 9 -2 Major Tukwila Water Facilities Location, Zone Description Comment Interties Beacon Ave. S. & S. Leo St. Supply Station (SS) 169 From CRPL 3 E. Marginal Way & S. 112th St. SS 10 From WSPL 44th Ave. S. & S. 115`" St. SS 11 From WSPL Southcenter Parkway & Tukwila Parkway SS 13 From CRPL 4 West Valley Highway & S. 158th St. SS 14 From CRPL 4 Christensen Rd. & Black Dr. SS 15 From CRPL 4 S. 158th St. & 53rd Ave. S. SS 16 From CRPL 4 E. Marginal Way at north City limit Emergency Seattle Intertie Emergency Interties . S. 116` Street & E. Marginal Way W. Dist 125 _ S. 1315` Place W. Dist 125 52nd Avenue S. & Interurban Ave W. Dist 125 S. 144th Street & 53`d Ave S. W. Dist 125 Todd Blvd. & Cascade Ave S. Kent W. Valley Hwy Renton Andover Park West & 180th Highline WD Valves E. Marginal Way & S. 112th St. 360 16" PRV Active supply from SS 10 E. Marginal Way & S. Norfolk St. 320 16" PRV Active running from SS 10-A 44th Ave. S. & S. 115th St. 360 8" PRV Active supply from SS 11 Southcenter Parkway & Tukwila Parkway 360 12" PRV Active supply from SS 13 West Valley Highway & S. 158th St. 360 8" PRV To be abandoned Christensen Rd. & Black Dr. 360 8" PRV Active supply from SS 15 S. 158th St. & 53`d Ave. S. 380 6" PRV Active supply from‘SS 16 S. 107th St. & 49th Ave. S. 340 8" PRV Active running from SS 169 E. Marginal Way at north City limit 320 8" PRV Emergency from SS 168 Operations and Maintenance HR I City of Tukwila 9-5 Table 9 -2 (cont.) Major Tukwila Water Facilities Location Zone Description Comment High Zone Check Valves 62 /1515( 400 8" Globe style check (no remote control) typical of 14 55th 400 6" Sunwood/62"d 400 8" Sunwood/Behind 400 8" 149`h/60`h 400 6" 144`h/59`h 400 6" 58th 400 6" 57`h/ 144`h 400 10" 144`h/57`h 400 6" 56`/14151 400 6" 144`h East of 53`d 400 6" 150th 400 8" 152"d 400 6" Klickitat 380 8" North Hill Reservoir 2 million gallon North Hill Booster Pump'Station 2 pumps @ 490 gpm to North Hill zone 2 pumps @ 1050 gpm to main 360 zone 9.4.3 Control/Telemetry The water system's supervisory control and data acquisition (SCADA) system consists of remote telemetry units (RTUs) located at individual supply stations, linked to a master control computer at the City's Maintenance Facility on Minkler Boulevard. The telemetry control panel serves to display important system status information. This system monitors the reservoir water level, and controls the supply station valves at supply stations SS 10, SS 13 and SS 15. A separate control system that is not linked to the master control system is installed at the reservoir pump station. This system monitors and responds to pressure variations in the distribution system and transmits analog signals back to the control panel at the City's Maintenance Facility. The telemetry system enables tracking and storing of system operating information. Table 9 -2 is a summary of telemetry instrumentation and control for source, booster pumping, intertie, and the storage facility. Seasonally, certain supply stations are alternated from straight PRV to flow control mode. In straight PRV mode, flow from the Seattle system changes to meet demand in the Tukwila system. In flow control mode, flow at these selected stations is controlled so as to not exceed a set maximum rate. • L ,� 1 Operations and Maintenance 9-6 HR City of Tukwila The RTUs at supply stations, North Hill Booster Pump Station and North Hill Reservoir are the • heart of the City's water SCADA system. These units perform the function of receiving input from and controlling the local equipment as well as communicating operational and alarm status back to the master computer. Each of the RTUs have battery backup. • Communication between the RTUs and the master control computer at the Minkler shops is via radio. To facilitate communications a radio signal repeater station is located at the North Hill reservoir. This repeater does not have an uninterruptible power supply (battery backup). If a power failure were to occur, loss of the repeater station could limit the ability of the water utility (and all of public works) to communicate with other units of the system. Battery backup of critical SCADA and communications elements is a common and desirable feature of modern SCADA systems. System alarms are communicated back to the master control panel at the operations center. The panel is monitored by utility staff. A response to an alarm may mean remote adjustment of a valve setting, however, in most cases, a trip is initiated to the station reporting the alarm. During evenings, and on weekends, an alarm triggers an autodialer which alerts water utility maintenance personnel of an alarm condition. There is no ability to look at the system status and assess the specifics of the alarm. The ability to have computer to access the SCADA system from off -site, via the interne or direct dial -in, is a common and desirable feature of modern SCADA systems. This feature provides supervisory staff with a more complete picture of the status of the system, reduces the need for unproductive trips to the operations center or remote sites, and promotes better operational control of the system. 9.5 Maintenance The hub . of the City's water maintenance operations is at the City's Maintenance Facility on Minkler Boulevard. Water, streets, sewer and stormwater maintenance operations are headquartered at the facility. Water quality and utility maintenance technicians conduct daily inspections and perform preventative /corrective maintenance on pump stations, reservoirs, PRV's and other distribution system components. Job standards have been developed for most maintenance tasks /activities performed by these technicians and are on file with the City. The following is a brief summary of system maintenance activity. 9.5.1 Maintenance Management The Public Works Superintendent sets goals, establishes work priorities and makes plans to help achieve the organization's goals for the year. The Public Works Division Supervisors have the responsibility to plan, organize, direct and control the workforce to achieve department goals. The supervisors have the additional responsibility to develop Maintenance Work Standards that are used in the development of the annual work plan. Fa( I Operations and Maintenance 9-7 City of Tukwila The annual work plan includes capital projects, system operations work, replacement work, routine corrective maintenance, equipment and distribution main service and project management. The annual plan is then divided into monthly schedules for project tracking purposes. Currently, projects are either tracked on paper or by using Excel spreadsheets. 9.5.2 Reservoir Maintenance The reservoir is inspected daily, quarterly, and on a five -year cycle employing an increasing degree of activity at each level. The objective of the daily visual inspections is evidence of vandalism, forced entry or damage and control functionality. On a quarterly basis a detailed inspection of access manholes, vents, overflow piping and valve exercising is conducted. Approximately every five years the reservoir undergoes a comprehensive engineering inspection and evaluation. Future draining and cleaning work will be accomplished in conjunction with the program schedule. 9.5.3 Valve Maintenance The city conducts a formalized, scheduled valve maintenance program so that system control is available to staff when needed. The Water Main Control Valve Maintenance and Flushing Program consists of locating and activating control valves in the distribution system. Valve exercising is scheduled for completion annually, particularly for main line valves. The objective of the program is to detect malfunctioning valves and prevent valves from becoming inoperable due to freezing or build -up of rust or corrosion. The program also ensures that valve locations are documented correctly and that valves are accessible. Malfunctioning valves are reported and maintenance work orders issued for repair or replacement. 9.5.4 PRV and Check Valve Maintenance Preventative maintenance for PRV and check valves is scheduled and conducted monthly as part of the Public Works work plan. The testing and maintenance performed includes pressure checks and adjustments, cleaning of strainers, and replacement of parts as necessary. 9.5.5 Hydrant Maintenance The primary function of fire hydrants is for supply of water for fire protection; however, hydrants are often used for other purposes. The City has a Hydrant Maintenance Program designed to maintain hydrants in proper working condition to provide available fire flow in the event of an emergency. The maintenance program parallels the service area grid pattern used by the Tukwila Fire Department. This grid system divides the service area into distinct units. The maintenance procedure is to perform hydrant maintenance sequentially, one grid at a time. This sequential grid approach ensures every hydrant is checked and maintenance performed before moving to Operations and Maintenance IOR /nes City of Tukwila • • • • • • the next grid. Upon completion of a grid, notice is sent to the Fire Department for their records. Anytime a hydrant is off -line for any reason notification is provided to the Fire Department. The hydrant maintenance checklist includes the following: • Removal of all grass, weeds, etc. in hydrant area. • Hydrants are tested in an approved manner for proper operation. • Each hydrant is recorded. • Caps are checked for cracks /operability. • Threads and chain races are cleaned and lubricated. • Hydrants are painted as necessary. • The street shutoff valve is checked for accessibility and ease of identification from water main valves. 9.5.6 Meter Maintenance /Replacement The City has one full time meter reader and one meter repair person on staff. The repair person has additional duties allowing approximately 1.5 weeks a month dedicated solely to meter repairs. Meter readers dedicate approximately seventy -five percent of the work time to meter reading and the remaining twenty -five percent to meter maintenance activities. In addition to the three meter employees, the Public Works Construction crew makes repairs whenever heavy equipment is required or repairs are needed on larger meters in the distribution system. To identify meter maintenance projects in the field, meter readers code their handheld computer to a maintenance code whenever a malfunctioning meter is identified. A printed copy of the report is forwarded to the Utility Maintenance Supervisor. The supervisor is responsible for planning and coordinating the repair activity. Currently the service area is 100% metered, and 30% of meters 2" and larger are automatic read. In the commercial industrial district 100% of meters are automatic read. Studies are underway to assess on the benefits, capital cost, and O &M cost of converting all meters to automated metering. 9.5.7 Flushing Program Tukwila conducts a distribution system flushing program 3 times per year (February, June and October) or as required based on water quality complaints. This approach allows the City to combine its hydrant inspection and flushing activities. Utility personnel also practice regular scheduled flushing of distribution system dead -ends and in response to customer water quality complaints. Chlorine residuals are measured before and after flushing, then documented. The City is considering developing a uni- directional flushing program designed to systematically flush the distribution system. Such a program would reduce flushing water demands, improve flushing efficiency, reduce water quality complaints resulting from flushing activity, and possibly improve water quality. �, I Operations and Maintenance 9-9 City of Tukwila • 9.6 Emergency Response Operations The City of Tukwila's objective is to provide and support effective planning, disaster management, and education services to enable citizens and employees of Tukwila to prepare for, respond to, and recover from an emergency. The Public Works Department has in place an "Emergency Action Plan" that outlines procedures to protect the water supply and the city's infrastructure. The Emergency Action Plan identifies potential threats or hazards that may jeopardize the city's water supply. The Emergency Action Plan is available from the City and addresses: • Drought Response • Water Quality Emergencies • Earthquake Response ■ Emergency Power Requirements • Outside Agency Coordination • Specific Emergency SOPs • Floods • Terrorism • Volcanic Eruption 9.7 Safety The Tukwila Public Works Department prides itself on having a keen sensitivity to the needs and concerns of the community and their employees. To meet some of those needs, the Public Works Department works as a partner in the development of safety programs and awareness for all utility employees. This has been accomplished by the implementation of an "Accident Prevention Program" and can be obtained from the City. Additionally, the Public Works Department maintains safety records for every employee and monitors renewal dates. New employees are issued proper safety equipment particular to the job assigned, and equipment is replaced with new as required. Each section of Public Works has an assigned safety representative to help manage the program. Department and individual divisions within the organization hold monthly safety meetings as well as on -site safety briefings before a major project is undertaken. Particular emphasis is placed on the following topics: • Confined Space Entry • Trenching and Shoring • Chlorine Safety • Heavy Equipment Operation • Use of Personal Protection Gear • Flagging • First Aid/CPR • MSDS Tracking Operations and Maintenance 9-10 City of Tukwila • • • The City of Tukwila has an assigned Safety Manager to oversee the actions of the Public Works • Department and to monitor new state or federal requirements. • • 9.8 Design and Construction Standards and Specifications Tukwila Public Works conducts all construction of water mains and appurtenances in accordance with City Development Guidelines and Design and Construction Standards, applicable American Water Works Association (AWWA) standards and Section 7 -11 of the WASDOT /APWA Standard Specifications. Chapter 7 of City's Development Guidelines and Design and Construction Standards addresses water supply specifically (Appendix S). These standards and specifications are intended to meet or exceed the design and construction standards referenced in WAC 246 -290. This material is intended to meet the requirements of the DOH submittal exception process for distribution mains construction. By qualifying for this process and following the approved procedures and standards, the City is provided a waiver from the requirement of DOH approval for individual projects. 9.9 Water Quality Operations The City of Tukwila takes an aggressive approach to protecting the quality of distributed water. The City contracts with the City of Seattle which conducts monitoring and testing of the distribution system to protect water quality from source to tap. Trained water quality employees from the City of Seattle conduct daily monitoring at 15 locations throughout the service area. Seattle water quality personnel collect and transport all water samples in accordance with state and federal regulations, and DOH approved monitoring plans. Water samples are sent to the City of Seattle laboratory for testing by certified technicians. Records are kept of all water tests and on file for DOH inspection. A detailed description of monitoring requirements is provided in Section 8. If a water quality violation occurs, requiring customer notification, the City notifies the Department of Health in accordance with WAC 246 - 290 -320 and the public notification process is employed. All radio, television, or printed public notification includes a clear explanation of the violation, discussion of potential health effects and the population at risk, a list of protective measures, and the city's address and phone number. Annually, every household and business in the city's service area is sent a Consumer Confidence Report explaining the test results and any presence of regulated contaminants. The Consumer Confidence Report also notifies customers of any water quality violations in the past twelve months. 9.9.1 Backflow Prevention and Cross Connection Control Under WAC 246 - 290 -490, the City has the responsibility to protect the public water system from ill effects associated with contamination due to cross - connections and backflow events. The following is a summary of the activities the city would like to perform in meeting DOH 1 glees City and Maintenance 9 -11 City of Tukwila requirements contained in WAC 246 - 290 -490. The activities and procedures are contained in the City's Cross Connection Control program (CCP). • Establishment of Local Authority. The City's legal authority to implement and enforce a cross - connection control program is established by Tukwila Municipal Code Chapter 14.0431, Water Supply Cross - Connections. • Procedures for Evaluation of Service Connections Hazards. Procedures and schedules for determining the degree of hazard posed by new and existing service connections are provided in the CCP. For new services, the City performs an initial cross - connection review prior to construction. For existing services, evaluations are performed on a schedule, with those posing the greatest potential hazard designated as having the highest priority. Evaluations of existing connections consist of meeting customers, reviewing facility drawings, and a physical survey of all exposed piping (if allowed by the customer). After the evaluation, the customer is notified if installation of a backflow prevention assembly is required. If, after 90 days, the customer has not installed a proper assembly, the City may install an assembly at the service connection. The City also reserves the right to disconnect the customer's service, in the event that immediate corrective action is required and is not taken by the customer. • Procedures for Eliminating or Controlling Cross - Connections. The City requires that cross - connections be eliminated if possible. If they cannot be eliminated, cross - connections are to be controlled and prevented by backflow prevention assemblies appropriate for the given situation. • Utilize Qualified Cross - Connection Specialists. The City's program is implemented by certified Cross - Connection Control Specialists (CCS). As of October 2004, the City has 6 employees holding state certifications as CCS, as well as employing 0 certified Backflow Assembly Testers (BATs). • Assembly Testing and Inspection Procedures. The City does not test backflow prevention assemblies. • Quality Insurance Program for Testing. The City's program requires that all backflow prevention assembly test reports submitted to the City document that the tester is on the City's list of certified testers and that the test kit used is in proper calibration. • Incident Response Procedures. Select City personnel are trained to respond to reported backflow incidents. Procedures for such responses and notification of the Seattle/King County Health District and DOH are contained within the CCP. • Consumer Education. The CCP incorporates information on cross - connection control into the City's existing consumer education program. The City provides all new water customers with a Customer Information Kit, which includes guidelines on installation, inspection, and testing procedures to ensure compliance with cross - connection control regulations. • Maintenance of Program Records. The City utilizes a database for storing, organizing, and tracking CCP records, including an inventory of known backflow prevention assemblies. In 2003, the City's database contained information on 975 backflow prevention assemblies at 279 different sites throughout the service area. Due to insufficient staffing, not all of the aspects of the desired program have been implemented by the City. Operations staff estimates that approximately 0.5 to 1.0 additional Full Time Equivalent (1-TE) staff would be required to provide the level of program described above. L� 1 Operations and Maintenance 9-12 HR City of Tukwila • • • • • 9.9.2 Customer Water Quality Inquiries The Public Works Department receives and monitors all customer complaints. The customer service employee writes a work order and sends it to the proper division within the department for follow -up. Whether it is a complaint on cloudy water, chlorine, low pressure or leaking water meter this employee tracks the service order to completion. The representative is also responsible for tracking streets, construction, traffic lights as well as all water related issues. If the call is an emergency, the customer service representative will radio the field crew to respond to the phone call. If it is a non - emergency call such as cloudy water, high chlorine taste, etc. the representative will write a service order and the supervisor will schedule the work. After the service order has been responded to, the order is returned to the customer service representative with the corrected action taken outlined on the order. All service orders are tracked by number and division. Each week every division receives an order status sheet that has all service orders issued to that division during the week. If the service order has not been responded to or if it has and not been returned as completed a status of the service order is requested. 9.10 Supplies and Equipment 9.10.1 Standby Power Generators The only water facility which could require standby power from a generator is the North Hill Booster Pump Station. The facility is not considered critical to maintenance of service and therefore, a permanent standby power generator has not been installed. A 35 KW trailer- mounted diesel generator is positioned at the Public Works Department yard and available for emergency use at various sites in the service area. 9.13.2 Spare Parts The Public Works Department keeps an inventory of commonly needed parts as well as emergency supplies at the Public Works yard and stockroom. The City's supply department tracks the inventory and orders additional supplies as required. The City expects critical spare equipment kept in stock include meters, meter boxes, various valves of all necessary sizes, pipe fittings, pipe, emergency clamps of various sizes etc. Large non - emergency items are purchased on an as needed basis. 9.10.3 Tools and Equipment Smaller commonly used tools and equipment are carried in the employee's trucks or are readily available from the stockroom. Tools and equipment such as pumps, small compressors, portable generators, pressure washers, and power tools are available from the stockroom. Larger infrequently used items are rented from various equipment rental companies located in Tukwila. L� Operations and Maintenance 9-13 1 u\ I /nes City of Tukwila • • 9.10.4 Heavy Equipment The Public Works Department owns heavy equipment such as dump trucks, rollers, forklifts, and backhoes. If necessary, larger equipment is leased or rented on an as needed basis from local suppliers. The City's maintenance and construction crews have personnel trained and experienced in heavy equipment operation. 9.11 Recordkeeping and Reporting The City of Tukwila utilizes an Information and Records Management system. By computer network tracking, the City's Public Works Department has developed a filing system that breaks down the reservoirs, distribution system, water meters and other necessary components that make up a service area. The city also involves department heads and supervisors to maintain and track their areas of responsibility. On an annual basis maintenance records are reviewed for the annual report. In addition, the city has contracted out the maintenance of the SCADA system within the service area. All telemetry maintenance is conducted by the contractor. Records include, but are not limited to the following: • Water quality • MCL violations • Water quality complaints • Backflow prevention • Maintenance and construction • O &M manuals • Personal records • Flushing and distribution system 9.12 O &M Improvements • Provide improve SCADA communications capability allowing off -site access of control data by means of a remote computer via the internet of direct dial -in. • Provide an additional 1.0 FIE staffing position to focus on water quality assurance including developing and carrying out the Cross Connection Control program (CCP). Operations and Maintenance 9-14 IM I mees City of Tukwila • • • Section 10 Capital Improvement Plan 10.1 Identification of Recommended System Improvements A number of system improvements have been identified during the completion of this plan. The development of the specific improvements has been described in the appropriate chapter. This chapter combines the various improvements identified into a single listing that can be prioritized and scheduled. In addition to those improvements identified during WSP preparation, City operations personnel have identified new facilities or facilities that require replacement. These facilities have been included in the Capital Improvement Plan. 10.2 Improvements A listing of improvements to Tukwila system has been created through the combination of two separate sources. These sources include: • A list of capital improvement projects provided by the City of Tukwila that are the process of design or are currently being proposed for the 2005 -2010 Capital Improvement Plan, • A list of additional projects identified during the hydraulic analysis evaluation of the Tukwila storage water system. The two sources have been combined into Table 10 -1 showing project name, scheduled range of years of activity, estimated project cost, and a comment about what the improvement is meant to affect. Twenty -three projects have been identified. Estimated project costs (construction, sales tax, engineering, administration, etc.) are presented in year 2004 dollars. Exhibit 10 -1 is a map showing the location of each improvement listed in Table 10 -1. A large scale version of this map is included as Appendix T. Capital Improvement Plan 10-1 City of Tukwila Table 10 -1 City of Tukwila Recommended Capital Improvements Project No. Project Title Description W- 001 _ 52nd Avenue S: Interurban Avenue S. to 53rd Avenue S. W -002 S. 137th Street and 53rd Avenue S. W -003 53rd Avenue S: S. 139th Street to S. 140th Street W -004 Macadam Road S: S 144th Street to S 152nd Street Replace approximately 280LF of existing 6 -inch line along 52nd Avenue S. with 8 -inch. Install approximately 635LF of new 8 -inch line $ 35,560 along S. 137th Street and 53rd Avenue S. to S. 139th St. Replace approximately 300LF of existing 6 -inch $ 16,800 line along 53rd Avenue S. with 8 -inch. Replace approximately 960LF of existing 8 -inch $ 151,200 and 1,740LF of existing 6 -inch line with 8 -inch. City Project: xxxxxx Year of Construction and Cost ($2004) 2005 -2011 2011 -2024 $ 15,680 Comments This replacement will improve fire flows to the north side of Tukwila hill. -- - This provides needed loop within the distribution system and will improve water service and fire flows to the north side of Tukwila hill. This replacement will improve fire flows to the north side of Tukwila hill. This replacement will improve water service and water quality to the north side of Tukwila hill. W -005 Macadam Road S Extension: S 152nd Street to Southcenter Blvd. Install approximately 1,355LF of new 8 -inch $ 75,880 line along Macadam Road. This provides needed loop within the distribution system and will improve water service and fire flows to the north side of Tukwila hill. W -006 Maule Avenue: S. 143rd Street and S. 144th Street Replace approximately 725LF of existing 2 -inch $ 50,750 line with 10 -inch line along Maule Avenue. City Project: xxxxxx This replacement will improve fire flows to the commercial area on the east side of Tukwila hill. W -007 S. 143rd Place: East of Maule Avenue Replace approximately 670LF of existing 6 -inch $ line along S. 143rd Place with 10 -inch and install approximately 100LF of new 10 -inch to connect the two existing dead - end lines. City Project. xxxxxx 53,900 This replacement and extension will improve fire flows to the commercial area on the east side of Tukwila hill and will provide a needed loop in the distribution system. W -008 58th Avenue S: S 142nd Street to S 144th Street W -010 Southcenter Blvd.: SW Grady Way to Andover Park East Replace 660 LF of existing 6 -inch line with 8- $ 36,960 inch. City Project: xxxxxx Install approximately 1,250LF of new 10 -inch $ 131,250 line along Southcenter Blvd. Includes a bridge crossing. City Project: xxxxxx Replacement of aged piping. W -011 Southcenter Blvd.: Andover Park Replace approximately 400LF of existing 8 -inch $ 42,000 East to 65th Avenue S. with 10 -inch. This will replace the existing 12 -inch main connecting from Interurban Avenue S. to Southcenter Blvd, and improve water service and fire flows to the areas around City Hall and the residential area north of Southcenter Blvd. To be constructed in coniunction with W -009. This replacement will improve water service and fire flows to the areas around City Hall and the residential area north of Southcenter Blvd. W -012 65th Avenue S.: Southcenter Blvd. to S. 151st Street W -013 S. 153rd Street: East of 65th Avenue S. Replace approximately 1,985 LF of existing 8- $ 222,320 inch with 16 -inch. Replace approximately 490LF of existing 8 -inch line with 10 -inch along S. 153rd Street. This replacement will improve fire flows to the east side of Tukwila hill (Canyon Estates). $ 34,300 This replacement will improve fire flows to the east side of Tukwila hill (Canyon Estates). • Table 10 -1 City of Tukwila Recommended Capital Improvements Project No. Project Title Description W -014 Christensen Road.: North of Baker Blvd. to Southcenter Blvd. New 10 -inch line along Christensen Rd. City Project: xxxxxx Year of Construction and Cost ($2004) 2005 -2011 2011 -2024 Comments Complete water main extension along Christensen Rd. This provides a needed loop within the distribution system. W -016 Black Drive: West of Andover Park East W -017 Corporate Drive S.: West of Andover Park West Replace approximately 540LF of existing 8 -inch line with 10 -inch along Black Drive. Replace approximately 460LF of existing 8 -inch line with 10 -inch line along Corporate Drive South. $ 37,800 This replacement will improve fire flows to this area. $ 32,200 This replacement will improve fire flows to this area. W -018 Minkler Blvd. Extension Install approximately 995LF of new 12 -inch line along Minkler Blvd. from the end of the existing dead -end line to Andover Park West. $ 83,580 This extension will improve water service to the CBD area and provides a needed loop within the distribution system. W -019 Minkler Blvd.: East of Industry Drive W -020 Southcenter Parkway: Minkler Blvd. to S 180th Street W -021 S. 180th Street: East of Andover Park East W -022 49th Ave. S: S 107th St to S 114th St. Replace approximately 490LF of existing 8 -inch line with 10 -inch along Minkler Blvd. Replace approximately 2,615LF of existing 10- inch line with 12 -inch. City Project: xxxxxx Replace approximately 880LF of existing 10- inch line with 12 -inch. Install approximately 1,970 LF of new 8 -inch line along 49th Ave. from the S 107th St to S 114th St.. $ 34,300 $ 329,490 $ 73,920 $ 110,320 This replacement will improve fire flows to this area. This replacement will improve water service to the Tukwila Valley South area. This replacement will improve fire flows to this area. This extension will close a loop. W -023 W.Seattle Pipeline ROW: SS10 to Pacific Hwy S. W -024 S 113th St Upsize W -025 East marginal Way S. and S. Norfolk St. Install 950 LF of new 8 -inch line along the $ 53,200 existing West Seattle Pipeline R -O -W between SS 10 and Pacific Highway South Replace existing 2 -inch diameter pipe with new $ 50,400 8 -inch (approx 900 LF) Move zone valve PRV to south of Norfolk $ 35,000 Street on East Marginal Way S. This extension will close a loop. Improve local fire flow Improve Fire Flow • Section 11 Financial Plan 11.1 Introduction The effective implementation of a Water System Plan (WSP) is dependent upon accurately developing a document that can be financially supported by the utility; will meet State and local regulatory requirements; and provides the flexibility to deal with unforeseen changes. This section presents a financial plan that reviews the sources of funds (revenues) and applications of funds (expenses) for the City of Tukwila's (City) water system. The financial plan includes projected operating and capital costs of the system for the six -year time horizon of 2005 -2010. The revenues and expenses used in the financial plan were obtained from the City's 2004 budget in conjunction with historical consumption information. The capital costs contained within the financial plan utilize the Capital Improvement Plan (CEP) presented in Section 10 of this Plan. The results of the financial plan outline the annual operating and capital needs of the water system and determine if the current water revenues are sufficient to cover costs. This analysis is not sufficient to provide a detailed review of cost of service or alternative rate designs. However, the City may consider performing a rate study independent of this planning document to address those issues. 11.2 Past Financial History The past six years of financial information for the water utility were evaluated to gain an understanding of the past performance of the utility, and at the same time, gain perspective of the current financial status of the water utility. Table 11 -1 is a summary of a six- year,financial history (2003 - 1998) for the City's water utility. Financial Plan 11 -1 times City of Tukwila Table 11 -1 Water System Financial History Sources of Funds Rate Revenue Other Revenue Total Revenue 4999 ^a:5 ' *rr 6::;11:9981 $3,950,027 $3,463,302 $3,476,086 $3,773,510 $3,532,525 $3,146,338 194,409 407,126 227,363 240,461 147,049 104,733 $4,144,436 83,870,428 $3,703,449 $4,013,971 $3,679,575 $3,251,071 Applications of Funds Operating Costs Source of Supply $1,252,284 $1,161,497 $1,045,437 $1,026,823 $905,598 $706,978 Pumping 50,454 26,856 22,751 28,990 35,286 31,388 Distribution 342,705 313,115 237,000 265,563 254,236 264,816 Customer Accounts & Services 27,188 22,158 28,178 20,039 18,971 19,917 Administrative & General Expenses 745,435 737,379 670,852 625,869 568,533 577,142 Other Expenses 1 574 3,360 4,388 2,111 2,793 3,496 Total Operating Expenses $2,418,640 $2,264,365 $2,008,607 $1,969,393 $1,785,417 $1,603,738 Debt Service $654,862 $698,205 $673,087 $692,738 $694,718 $720,661 Taxes & Transfers $318,020 $283,868 $172,260 $182,787 $171,411 $147,975 Total Revenue Requirements $3,391,522 $3,246,438 $2,853,955 82,844,918 $2,651,545 $2,472,374 Balance For CapitalReserves (Deficit) $752,915 $623,990 $849,494 $1,169,053 $1,028,030 $778,697 The utility has a strong financial position. As Table 11 -1 illustrates, the utility is showing a positive cash flow for the historical test period. The balances are used for capital improvements and/or reserved for . future capital needs. While some capital improvements are funded through low- interest loans and revenue bonds, resulting in debt service payments, the utility also historically has funded a substantial level of capital improvements through rates. Target levels for funding capital improvements for future years is discussed later in this section. 11.3 Development of the Financial Plan (Revenue Requirement) A six -year financial plan is developed to determine the City's ability to meet its capital improvement and operating needs over the six -year review period. In developing the financial plan, fund balance and reserve levels were also analyzed. The financial plan was developed to review the projected 'revenues and expenses of the water system for 2005 -2010. The City's 2004 budget was used as a base. Future years were escalated by applying factors for inflation and growth, as described below. 11.3.1 Revenue The first component of the financial plan is a review of the sources of revenue of the water system. The different revenues received from operations are: • Rate revenues - water sales to customers; • Other revenues service repairs, fines and penalties, ancillary fees; and • Interest Revenue!- interest earnings on fund balance. Projections for future year revenues were developed by applying a projected growth rate of 1 percent to the 2004 budgeted rate revenue. The one percent growth level appeared to be appropriate when reviewing the swing in potable water sales from 1999 -2003. The trend Financial Plan 11 -2 HR 1 'nes City ofl Tukwila • • • • • appeared to be increasing as shown by a 2.9% growth rate from 2002 to 2003. However, with continual emphasis on conservation, the one percent growth rate was used for future periods. Other miscellaneous revenues, including investment interest, penalties and other revenue, are projected to increase approximately 2 to 3 percent per year through 2010. Rate revenues are projected to be $3.8 million in 2005. The rate revenues of the City come from retail sales to the residential and commercial customers. With growth applied at 1 percent per year, the rate revenue increases to $3.98 million by 2010. Other revenues for 2005 total approximately $180,000, with a majority coming from hydrant rental (transfers -in), investment interest, and reclaimed water sales. The other revenue increases over the six years, reaching $250,000 by 2010. The total revenue available to offset the operating and capital requirements of the water system total $4.0 million in 2005 increasing to $4.2 million by 2010. 11.3.2 Expenses Operating expenses, or the application of funds, are based on the 2004 budget. These expenses are then projected for future years by applying escalation factors dependent upon the type of expense being reviewed. The second part of the financial plan is a review of the applications of funds. In developing the financial forecast, four main cost components were reviewed: • Operations and Maintenance (O &M) Expenses • Taxes and Transfer Payments • Debt Service • Capital Improvements Funded From Rates Operation and Maintenance Expenses Using the 2004 budget as a starting point, expenses were escalated by factors representing assumed inflationary rates to obtain projected costs. Escalation factors range from employee benefits at an average annual increase of 18 percent, to miscellaneous items, materials and supplies at 2 percent. Labor escalated at 4 percent and purchased water at 3 percent per year. Detailed escalation factors are provided in Appendix U, accompanied by a copy of the financial plan. The financial plan also includes an additional full -time utility worker in 2006 for water quality assurance, which includes the cross - connection control and back -flow control programs. This position is included at a salary of $65,000 plus the related benefits. It should be noted that no other program cost increases, above budget year 2004 figures, were assumed as part of the projected costs. O &M expenses ranged from $2.4 million in 2005 to $3.0 million in 2010. Financial Plan 11 -3 i. 1 ines City of Tukwila • • Taxes and Transfer Payments The water system currently has tax obligations to the State in the form of excise taxes. The state public utility tax is calculated as 5.029 percent of the water utility rate revenues. For 2005 these taxes /transfer payments total approximately $200,000 and increase to $210,500 by 2010. Projected taxes for the period assume constant tax rates over time. Debt Service There are currently five outstanding loan obligations for the City's water system. There is a 1993 combined water /sewer revenue bond issue, of which 98 percent of the benefit (and debt payments) are attributed to the water utility. The 1995 revenue bond issue is allocated 100 percent to the water utility. According to Finance Department records, there are three Public Works Trust Fund (PWTF) loans relating to the water utility. One 2001 PWTF loan for Foster Point is allocated to water, sewer and stormwater. The water utility's part of the water /sewer portion is 20 %. The annual payment of $3,800 is completed in 2005. Another 2001 PWTF loan is a payment . made to Val Vue for loan debt service paid to King County. The water utility share is 55% of the total City of Tukwila share (35 %), with the balance attributed to the stormwater utility. The annual payment for this loan is estimated at $14,400 per year for the test period. Finally, the 2004 PWTF loan that the City is currently receiving proceeds for will result in a payment from the water utility of $38,600 per year through 2023. The combined debt service on the existing debt averages approximately $745,000 between 2005 and 2006. The 1993 bond issue has a final payment in 2006. This reduces the average annual debt service total to approximately $450,000 from 2007 through 2010. The model used to develop the financial plan shows that the City will require no new bond issues or loans through 2010 to meet the capital needs identified earlier in this plan. Meeting debt service coverage requirements is an important financial indicator for well managed utilities. Debt service coverage is a financial measurement of an entity's ability to repay debt. A debt service coverage ratio is a comparison of net income before debt service payments to the total debt service on revenue bonds. The City must meet a 1.40 coverage ratio test according to existing bond covenants. The City meets this requirement through the test period. The City will need to be watchful of this requirement during its financial evaluations. Capital Improvement Projects from Rates - Capital improvement projects are related to the infrastructure of a utility. Capital improvement projects are generally divided into two categories: capital improvements related to renewal and replacements of existing plant and depreciated facilities, and growth related projects including system expansion and upgrades to accommodate new customers. The City capitalizes some staff time and benefits for those staff working on capital projects. In addition, there are planning and construction projects included within the capital component of the financial plan. The financial analysis conducted for this plan has incorporated the capital projects outlined in Section 10 of this Plan. These projects have been allocated by year in order Financial Plan 11-4 City of Tukwila 1 • • • • to quantify the annual capital requirements for the review period. Identified capital improvement projects average approximately $300,000 to $400,000 per year from 2005 to 2010. The City has strong reserve funding available, which has helped to fund planned and unanticipated capital improvements in the past. It is anticipated that the City will use some reserve funding, and continue to maintain reserve balances through the test period. Reserve funds are discussed later in this section. This financial analysis assumes that the City will fund renewals and replacement projects at a rate of 1.25 times the annual depreciation expense of the utility. The 1.25 factor will assist in the funding difference required when comparing the replacement cost of the asset to the depreciated value. The city may want to target funding a higher factor in the future such as 1.5 or 2.0 times depreciation expense. The City's records reflect that the annual depreciation expense for the water utility in 2003 was $405,000. In 2005, funding for replacement capital is established at $530,000. The 2005 figure applies a 3% increase per year and a 1.25 factor to the 2003 depreciation amount. This level of funding capital improvements from rates continues to grow through the test period, totaling $615,000 by 2010. The capital analysis assumes that any additional funding beyond what is necessary to meet the annual capital requirements will be placed into the working capital reserve for future capital needs. 11.3.3 External Sources of Funds for Capital Projects The City has the ability to apply for grant and loan funds available to public entities for water system projects. The City has been successful at obtaining a number of low- interest loans, as described earlier under the debt service section. Table 11 -2 provides a summary of the contacts for various funding agencies. These sources rarely provide full funding of a construction project. The City would need to supplement any of these funds with matching funds to meet eligibility criteria and to ensure that implementation of the recommended capital improvement projects can occur. Table 11 -2 Funding Agency Contacts tnon Internet •:r., cvarmt Centennial Clean Water Fund Department of Ecology P.O. Box 47600 Olympia, WA 98504 -7600 (360) 407 -6566 (360) 407 6426 www.ecy.wa.gov Drinking Water State Revolving Fund Department of Health DWSRF PO Box 47822 Olympia, WA 98504 -7822 (360) 236 -3095 (360) 236 - 2253 www.doh.wa.gov Public Works Trust Fund Public Works Board P.O. Box 48319 Olympia, WA 98504 -8319 (360) 586 -7186 (360) 664 - 3029 www.pwb.wa.gov Infrastructure Database (over 200 funding programs) Infrastructure Assistance Coordinating Council (IACC) (360) 725 5002 www.infrafunding.wa.go v Financial Plan City of Tukwila 11 -5 A brief description of these funding sources is provided below. Department of Ecology The Centennial Clean Water Fund (CCWF) is available to local governments and tribes for measures to prevent and control water pollution. Both grants and loans are available on a yearly funding cycle. CCWF is the largest State grant program for water projects. It provides grants for planning, design, and construction of facilities and other activities related to water quality. The primary focus of the program is pollution prevention and funding projects with a quantifiable water quality benefit. Funds are available to protect a source of water supply, as well as funding of water conservation or water reuse projects, if they can be shown to be the cost - effective alternative to solve a water quality problem. Funding from this program is not available to provide excess capacity, but must be used to meet existing residential needs. Funding can also not be used to provide a source of supply. Grants and loans from this program are also available for the wellhead protection activities. Interest rates are 0.5 percent for loans up to five years while those over five years but less than 20 years have a 1.5 percent rate. Grant funding of 50 to 75 percent of a project is available depending on the type of project. Another source of Washington Department of Ecology (Ecology) grant funding provided by the Remedial Action grant program is normally used only to mitigate contamination events. Washington Department of Health The Safe Drinking Water Act (SDWA) appropriates funding for states to develop their Drinking Water State Revolving Fund (DWSRF) loan programs. Each state receives annual allocations in the form of a capitalization grant. In Washington State, the DWSRF is jointly managed by the Department of Health (DOH), Division of Drinking Water, the Public Works Trust Fund Board (Board), along with its partner, the Department of Community, Trade and Economic Development. DWSRF loans are available to all community public water systems, and non- profit, non - community public water systems, except federally owned and State -owned systems. The loans may be used to address SDWA health standard violations, replace infrastructure for SDWA compliance, or consolidate supplies and acquire property if needed for SDWA compliance. The interest rates on DWSRF loans ranges from 0 percent to 2.5 percent with a 2 percent loan fee on all loans. The interest rate is dependent on the economic situation of the area. If 51 percent of the area's households are below the medium income then the loan repayment period is 30 years, otherwise, they are 20 -year loans or the life of the project, whichever is less. L, I Financial Plan 11 -6 R H City of Tukwila • • • • • • Public Works Trust Fund The PWTF loan program is set up by the Legislature to assist cities, towns, counties, or special districts with funding for different types of public works projects. The projects can include streets, roads, drainage systems, water systems, and sanitary sewer systems. The emphasis of allocating funds is for replacement and/or repair of existing systems. Funds are not allocated to install new water systems. Rather, funds are granted to rehabilitate or replace existing systems serving an existing population. The loans are issued at up to 2 percent interest rate for a maximum term of 20 years for applications requesting 95 percent project funding. The interest rate decreases to 0.5 percent when applicants provide at least 15 percent of the project funding. Debt service coverage is not imposed on the PWTF loan. Infrastructure Assistance Coordinating Council There are numerous other programs with funding available for various other aspects of water utility capital projects. The Infrastructure Assistance Coordinating Council (Council) provides resources and conferences on the available funding sources. This Council is comprised of State and local organizations whose function is to provide funding for infrastructure repair and development. The purpose of the Council is to assist local governments in coordinating funding efforts for infrastructure improvements. This is an important resource as the Council will be aware of any new funding opportunities that may arise. While the above list of possible grant and loan opportunities for the City is not exhaustive, it does highlight the most probable outside funding sources, excluding revenue bonds and other external sources of funds, available to the City for its water capital improvement needs. These other external sources of funds are described below. Revenue Bonds Revenue bonds are supported by the income generated from monthly utility charges. The City Council can issue revenue bonds at its discretion. Water rates must be high enough to pay system operation and maintenance costs plus the annual principal and interest cost (debt service) of the bond issue. For investors to buy revenue bonds, rates must include adequate revenue to provide for "coverage ". The normal coverage is 20 to 40 percent of the debt service, depending on the financial strength of the City. In the City's existing debt service bond covenants the coverage requirement is 40 percent. Utility Local Improvement Districts (ULID) Projects benefiting adjacent properties can be funded through utility local improvement districts (ULID). After a ULID is formed, the cost of the project can be assessed against the benefited L, .� 1 Financial Plan 11-7 Fal City of Tukwila • • properties in proportion to their share of the total benefits. The amount of the assessment cannot exceed the increase in the value of the property resulting from the project. A ULID combines property assessments and revenue funding from water rates. The additional security of the bond's tends to bring lower interest rates. There is also added flexibility and equity as the City can accommodate the cost of special construction problems or of upsizing the distribution system. Developer Extension Under a developer extension, the owner of a development requests water service. Filing fees usually cover administration costs only. The developer pays all costs of the extension and turns it over to the City for operation and maintenance. Internal funding sources available to offset capital costs include contributions received from new water connections and existing reserves. The City's contributions appear low. A review of the connection charges of the utility may be warranted to ensure they are consistent with system planning criteria and are keeping pace with inflation. 11.4 Summary of the Financial Projections A summary of the financial plan and resulting financial status of the water system is provided in Table 11 -3. This is an abbreviated summary of the detailed financial plan and analysis, which is provided in Appendix U. Table 11 -3 Summary of the City's Projected Six -Year Financial Plan SOURCES OF FUNDS Present Rate Revenues Miscellaneous Revenues TOTAL SOURCES OF FUNDS TOTAL O&M EXPENSE TOTAL TAXES/TRANSFERS $3,750,000 $3,787,500 $3,825,375 $3,863,629 $3,902,265 $3,941,288 $3,980,701 159,343 181,672 185,878 225,888 233,046 241,563 253,858 $3, 909, 343 $3,969,172 54,011,253 $4,089,517 $4,135,311 54,182,850 $4,234,558 52,608,980 52,352,444 52,520,925 52,619,792 $2,724,329 52,633,810 52,948,591 5180,000 5200,359 5202,362 5204,386 5206,430 5208,494 5210,579 CAPITAL PROJECT BUDGET Capital Improvements - Preliminary Eng. $56,000 $59,640 $63,678 $68,174 $73,201 $78,844 $85,200 Capital Improvements - Infrastructure 2,226,000 485,960 497,987 510,035 522,045 533,948 545,660 Less: Outside Funding 1,907,000 15,150 15,301 15,455 15,609 15,765 15,923 TOTAL CIP FROM RATES 5375,000 $530,450 $546,364 5562,754 5579,637 $597,026 $614,937 DEBT SERVICE i $747,179 5745,613 $743,748 5450,092 $452,893 5449,415 5450,397 TOTAL REVENUE REQUIREMENTS $3,911,159 $3, 828,865 $4,013,400 $3, 837, 024 $3,963,289 $4,088,746 54,224,504 ($1,816) $140,307 ($2,146) $252,492 $172,022 $94,105 $10,054 $96 $0 $113 $0 $0 $0 $0 ($1,912) $140,307 (52,260) $252,492 $172,022 $94,105 $10,054 Balance/(Deficiency) Before Added Taxes Plus: Additional Taxes w/ Rate Increase Net Balance /(Deficiency) of Funds RATE ADJUSTMT AS A % OF RATE REV 0.0% 3.7% 0.1% -0.5% Debt Service Coverage Ratio: Before Rate Adjustment 1.52 1.92 1.75 2.85 -4.4% -2.4% 2.69 2.57 -0.3% 2.42 L,u� Financial Plan 1 � ines City of Tukwila 11-8 • • • When interpreting the results of Table 11 -3 it is important to understand that the "Rate Adjustment As A % of Rate Revenue" is cumulative. That is, any rate adjustments made in previous years would reduce what is required in the following years. It is also important to keep in mind that the model assumes expenses are completely expended within each year. Typically, utilities receive additional revenue and often actual expenditures do not total 100 percent of budget appropriations. Therefore, the city has a number of options for deferring the adjustment until the latter part of the test period. Those options would include adjusting capital improvement timing, use more reserves for capital improvements, reducing some other operating expenses, and closely monitoring additional revenue or ,increased growth beyond the 1% assumed. The results of Table 11 -3 show that existing rates are sufficient throughout the time period under review. With the reduction in debt service in 2007, the balance of funds increase to $250,000. This surplus slowly diminishes by 2010 when revenue and expenses are close to balancing. It is important to note that the financial plan presented in this section is predicated upon an assumed level of growth on the system (1.0 percent per year), and assumptions related to inflation. Should this growth increase, slow down, or not occur, the level of rate adjustment required will be affected. Likewise, if costs escalate faster or slower than indicated in this plan, the rate adjustments needed would also be affected. 11.5 Reserve Levels A key indicator of financial health and viability is a utility's reserve levels. Because a majority of the utility's revenue is consumption based, and therefore dependent upon optimal weather conditions, maintaining adequate reserve levels is important for stable fiscal management of the utility. A discussion of the utility's reserves is provided below. Industry standards (American Waterworks Association — AWWA) recommend that utilities maintain working capital reserves at a level adequate to handle unexpected occurrences, including unexpected cash flow fluctuations. A balance for an O &M reserve, or operating reserve, is recommended to be a minimum of 45 days of operations and tax expense. For the City, that minimum balance would equate to approximately $320,000 to $350,000 in the first half of the review period, and increasing to $390,000 by 2010. The City begins the test period in 2004 with a balance of $4.2 million in working capital. Use of $1.3 million for capital improvements is included in the 2004 budget. The balance increases throughout the time period due to capital needs being lower than available funding. The 2010 ending balance is approximately $4.2 million. Maintaining this balance will provide the city with flexibility in meeting future capital requirements. The City also has a balance in the construction fund. In 2004 this reserve has approximately $280,000 and grows slightly over the review period to $304,000 by 2010. Sound financial policies indicate that a fund balance equal to an average year's worth of capital projects is a healthy reserve amount. Between the Construction Fund balance and the working capital reserve, the City's reserve levels are more than adequate to meet this target. L^� Financial Plan 1 al 1 mem City of Tukwila 11 -9 i The City maintains a revenue bond fund, with a balance beginning in 2004 of $690,000 and growing to $808,000 by 2010. This fund is used to make debt service payments. The City also maintains a bond reserve fund to meet bond covenant requirements. This reserve begins 2004 with a balance of $577,000 and grows to $630,000, due to interest accrual. These funds can only be used as bonds are retired and the reserve is no longer required: The reserve review indicated that the City has adequate reserve funding to meet unanticipated obligations and general operating fluctuations. The City could improve upon and clarify their financial planning goals by establishing policies that define the appropriate reserves to establish and identify a target or minimum funding level for each reserve. 11.6 Review of the Existing Water Rates There are various "generally accepted" water rate structures that can be used to establish or develop rates. The initial starting point in considering a rate structure is the relationship between fixed costs and variable costs. Fixed costs are generally collected as a fixed charge on a monthly basis (e.g. $5.00 per month/meter). This charge may be called by various names (e.g. customer charge, meter charge, base charge, etc.) but in all cases, it is intended to collect those fixed costs that the utility incurs: Currently, the City has both a meter charge for service and a consumption charge based on usage. In addition, the consumption rate is seasonal. That is, the consumption charges are higher in summer, the peak demand period, than they are in the winter months (October through May). For residential customer the meter charge is a minimum charge. For multi - family customers, the $6.00 customer charge is a "per unit" charge. There are different rate schedules for commercial and residential customers. For purposes of this overview, the rates in effect as of January 2004 are presented in Table 11 -4. etereda,Rates ,. — • Table 11 -4 Overview of the City's Current Water Rates esidenti r4 aio.vu nta 1" 6.00 25.00 1 '/s" 6.00 35.00 2" , 50.00 3" I 75.00 4" I 100.00 - 6" 150.00 8" 200.00 10 ", 250.00 12 "1 300.00 Consumption Charges: Per Hundred Cubic Winter (October – May) $2.15 $2.78 Summer (June – September) 2.98 $3.83 [1] Multi family customers are billed $6.00 per unit. The consumption charge uses a seasonal rate structure. This type of rate structure is designed to send a price signal to customers that use of water in the high demand period (peak use period) of Financial Plan }BR 1 L mew City of, Tukwila 11 -10 • • • • • summer costs more. Therefore, customers pay a higher rate per hundred cubic foot of water used in the summer period (June to September). This rate design structure was also likely established to tie to how the City purchased water from the wholesale provider. This rate structure is commonly used and considers the way costs are incurred by the city. There are a number of rate options the City could consider should conservation become more of a priority. For instance, a tiered rate structure (usage priced higher at higher water use levels) could be incorporated to assist in meeting a conservation objective. The City's meter charge is based on the size of the customer's meter. This approach is used often to identify that different meter sizes place different demands and capacity requirements on the system. It is common to base the meter charge rate differential on the American Water Works Association safe operating capacity of the meter. The meter capacity approach is summarized in Table 11 -5. Table 11 -5 Example of the Development of Fixed Meter Charges Based Upon Meter Capacity Safe Maximum Oper. Meter Size Capacity GPM [1] 3/4" 1" 1 -1/2" 2" 3" 4" 6" 8" 10" 12" 30 50 100 160 300 500 1,000 1,600 2,300 3,375 Capacity Meter Weights 1.00 1.67 3.33 5.33 10.00 16.67 33.33 53.33 76.67 112.50 Meter Charges at Capacity Weightings. $12.00 /month 20.00 40.00 64.00 120.00 200.00 400.00 640.00 920.00 1,350.00 [1 ] AWWA C- 700 -77 Cold Water Meters - Displacement Type As Table 11 -5 indicates, the fixed meter or base charge increases in relationship to the safe operating capacity of the various meter sizes. Meter capacity is an important concept in that a customer that has a 2" meter is regarded, from a capacity perspective, as the equivalent of 5.33 - 3/4" customers. Another way of saying this is the commercial customer with a 2" meter is, from a capacity perspective, the equivalent of five (5.33) single - family homes with 3/4" meters. Since a large portion of costs are generally related to meeting capacity requirements, one can see the importance of taking into account capacity in establishing rates for customers. Recalculating the City's current 3/4" meter charge by the capacity meter weightings indicates that the City's meter charges could be adjusted to more accurately reflect the capacity costs of the system. A majority of the utility's revenue (80 %) comes from the commercial customers. An additional 10% comes from multi - family and another 10% from the single - family residential customer class. The monthly bill for a City residential customer in winter, using 10 hundred cubic feet of water (10 CCF) would be $27.00. A monthly bill in the summer for the same customer would be $35.80 (or higher for higher usage). Likewise, a monthly bill for a commercial customer with a 3/4 inch meter with 10 CCF of consumption would be $39.80 in winter and $50.30 in summer. Financial Plan 11 -11 City of Tukwila • • The conceptual rate review undertaken indicates that the City's rates are contemporary and attempt to capture the cost differential to serve customers with varying usage characteristics and facility requirements. Completion of a comprehensive rate study would assist the city identify if any rate structure changes are warranted based on the city's goals, objectives and the manner in which costs are incurred. 11.7 Overview of Future Water Rates Based upon the results of the financial analysis, the City will require some minor adjustments in rates in future years to meet the on -going needs of the water utility system, as identified within this document. The City may wish to conduct a cost of service study in the near future to verify that the rates charged to residential and commercial customers are cost - based. A cost of service study would also review the current rate structure and provide alternative approaches that meet the goals and objectives of the City. 11.8 Neighboring Utility Rate Comparison To assist in developing a sound financial plan for the water utility, the City of Tukwila requested a comparison of the City's water utility rates with the rates of surrounding utilities. The comparison with neighboring water utilities is provided in Exhibit 11 -1. In developing any rate comparison, it is important to understand that such comparisons are not "apple to apple" comparisons. We have found that such comparisons do not account for differences in source of supply (Kent, Auburn and Renton having all or partial aquifer supplies), customer makeup, capital funding mechanisms, treatment plants, etc. Each of these factors can radically alter rates, and thus any rate comparison. Given that understanding, a simple comparison between these neighboring utilities for single - family residential and commercial customers was developed. $40.00 4 $30.00 1t' $20.00- 3E $10.00 $0.00 Crty of City of City of City of City of Tukwila Renton Seattle Kent Auburn • Winter 10 ccf $21.50 $18.10 $25.30 $15.93 lighline KC WD Soos WD #125 Creek $14.60 1$29.10 $18.60 $16.25 • Monthly Meter Charge $6.00 $10.82 $6.90 $2.20 $6.95 $7.00 $18.00 $8.50 Exhibit 11 -1 Winter 2004 Monthly Residential Rate Comparisons A bill comparison was developed for residential customers of seven surrounding jurisdictions and Tukwila's current rates. As noted earlier in this section, Tukwila's current rates are shown to be adequate through the review period of 2010. The rates compared were those for the winter L 1 Financial Plan 11 -12 F ( City of Tukwila 1 • • • • • • months. As shown in Exhibit 11 -1, the meter charge and commodity charge are identified separately for comparison purposes. The bill comparison considered a single family, residential customer with 5/8" meter and an average consumption for the month of 10 hundred cubic feet (10 ccf, or 7,500 gallons). With these assumptions, monthly bills were developed. Based upon this analysis, it appears that the City's rates are within the range of other neighboring utilities for the single family, residential rates. When these other entities have rate adjustments, over the next few years, Tukwila's rates will move to the lower mid -range. Similarly, a comparison for small commercial customers was developed. This assumed a 34" meter and again, 10 ccf of water usage in a month. This comparison is provided in Exhibit 11 -2. It should be noted that for consumption over 10 ccf, which is typical of larger commercial enterprises, the Highline water district has higher commodity charges per ccf than Tukwila's. Thus, for larger commercial customers, the district's monthly bills will be higher than Tukwila' s. 11.9 Summary The financial plan results presented in this section indicate that water rates for the six -year projected time horizon of 2005 to 2010 will adequately fund the projected O &M, capital, and debt service requirements. The City has been proactive in its financial management in the past. It has demonstrated its commitment to responsible management of the utility by funding adequate levels of operations, capital and reserves. Continued fiscal management will enable the water utility to operate on a financially sound basis. L� I Financial Plan 11-13 iR 1 City of Tukwila CITY OF TUKWILA Department of Community Development 6300 Southcenter Boulevard, Tukwila, WA 98188 Telephone: (206) 431 -3670 FAX (206) 431 -3665 E -mail: tukplan a ci.tukwila.wa.us • SEPA ENVIRONMENTAL RECEIVMEVIEW NOV 0 3 2005' COMMUNITY DEVELOP, NAME OF PROJECT/DEVELOPMENT: C i- o f TvtLc,, c LA a o05 Lv Ai <- S%7 s L'9- J C/.° P4-76 LOCATION OF. PROJECT/DEVELOPMENT: (Give street address or, if vacant, indicate lot(s), block and subdivision, access street, and nearest intersection. LIST ALL 10 DIGIT PARCEL NUMPERS. pc,e a F 1 L 0 t T✓ S a v e Quarter: Section: Township:. Range: (This information may be found on your tax statement.) DEVELOPMENT COORDINATOR : The individual who: • has decision making authority on behalf of the applicant in meetings with City staff, • has full responsibility for identifying and satisfying all relevant and sometimes overlapping development standards, an • is the primary contact with the City, to whom all notices and reports will be sent. Name: N " 1 - ‘ 1 Cu s ;c Address: 6300 5a.,-41-1 Phone: X66 43'3- Oi `7 E-mail: r' c(-, s C t . iZ Lit 1 _ `"'a /3 O Signature:. Date: it f2c Spire /C'c FAX: oc 17/3/- `36C5 �5 G:I APPHAN\LANDUSE.APP;SEPAAPP.DOC, 09/11/03 FOR STAFF USE ONLY SIERRA TYPE P- SEPA Planner: File Number: vs _ 0 I Application Complete (Date: ) Project File Number: Application Incomplete (Date: ) Other File Numbers: NAME OF PROJECT/DEVELOPMENT: C i- o f TvtLc,, c LA a o05 Lv Ai <- S%7 s L'9- J C/.° P4-76 LOCATION OF. PROJECT/DEVELOPMENT: (Give street address or, if vacant, indicate lot(s), block and subdivision, access street, and nearest intersection. LIST ALL 10 DIGIT PARCEL NUMPERS. pc,e a F 1 L 0 t T✓ S a v e Quarter: Section: Township:. Range: (This information may be found on your tax statement.) DEVELOPMENT COORDINATOR : The individual who: • has decision making authority on behalf of the applicant in meetings with City staff, • has full responsibility for identifying and satisfying all relevant and sometimes overlapping development standards, an • is the primary contact with the City, to whom all notices and reports will be sent. Name: N " 1 - ‘ 1 Cu s ;c Address: 6300 5a.,-41-1 Phone: X66 43'3- Oi `7 E-mail: r' c(-, s C t . iZ Lit 1 _ `"'a /3 O Signature:. Date: it f2c Spire /C'c FAX: oc 17/3/- `36C5 �5 G:I APPHAN\LANDUSE.APP;SEPAAPP.DOC, 09/11/03 Please respond to all questions. Use separate sheets as necessary. Applicant Responses: A. BACKGROUND 1. Name of proposed project, if applicable: City of Tukwila 2005 Water System Plan Update (2005 WSP Update) 2. Name of Applicant: City of Tukwila Attn: Mike Cusick, P.E. 6300 Southcenter Blvd. Tukwila, WA 98188 -2544 Date checklist prepared: October 2005 4. Agency requesting checklist: City of Tukwila 5. Proposed timing or schedule (including phasing, if applicable): The City of Tukwila is required to develop a Water System Plan (WSP), and update it, every six years, according to Washington Administrative Code (WAC) Chapter 246 -290- 100 Public Water Supplies. The 2005 WSP update discusses planning considerations, existing system conditions, operation and maintenance standards for the City, and recommended improvements to meet future water demands in Tukwila's water service area. The six -year and twenty -year Capital Improvement Plan (CIP) presented in the 2005 WSP Update consist mainly of physical system improvement projects that would improve the City's ability to provide a sufficient quantity of water at optimum quality. Projects are defined by time period projected with the estimated costs associated with each project. However, CIP projects listed in the 2005 WSP Update should not be viewed as a commitment by the City to implement each project as it is planned with the rate and schedule shown. Actual project implementation will be based on environmental review, permits and approvals, available funding, and scheduling requirements. 6. Do you have any plans for future additions, expansion, or further activity related to or connected with this proposal? If yes, explain. The City's WSP needs and system components may change from time to time and will be reflected in the next required update in six years. At that time, projects that are beyond the six -year planning horizon will be updated. Agency Comments Environmental Checklist -1- City of Tukwila October 28, 2005 Draft 2005 Water System Plan Update Applicant Responses: • • Agency Coin ucnts 7. List any environmental information you know about that has been prepared, or will be prepared, directly related to this proposal. No environmental information has been prepared. 8. Do you know whether applications are pending for governmental approvals of other proposals directly affecting the property covered by your proposal? If yes, explain. No specific proposals are known at this time. 9. List any government approvals or permits that will be needed for your proposal. The 2005 WSP Update will be submitted to the Washington Department of Health (WDOH) for review under WAC 246 -290 Public Water Supplies. 10. Give brief, complete description of your proposal, including the proposed uses and the size of the project and site. There are several questions later in this checklist that ask you to describe certain aspects of your proposal. You do not need to repeat those answers on this page. The Tukwila water system was first established in 1929 and consisted of a six -inch diameter steel water line connecting Seattle's Beacon Hill to Tukwila's North Hill area. Up to that time, drinking water was supplied by several groundwater wells and the Green River. As the City annexed land in the late 1950s and early 1960s, and later in the late 1980s, the City also began to take over some of the water services for areas within the City limits from other water districts and public utilities. Today, the City is served primarily by the Tukwila water system, and also by KCWD 125, Highline Water District, and the City of Renton. As of January 1, 2005, Tukwila's primary sources (provide water during normal operating conditions) and secondary sources (use in the event of emergencies, high demand, or when primary sources are off -line) are supplied mostly by the Cascade Water Alliance (Cascade). Cascade was formed in April 1999 through an Interlocal Agreement among certain cities and special districts that own and operate public water systems in King County. Cascade currently receives most of its water from the City of Seattle under a declining block contract, with the first block of 30.3 million gallons per day (mgd) extending through December 31, 2023. Two additional sources of water used by the City for irrigation purposes only are reclaimed water through a contract with King County, and water from the Green River currently used only at the Foster Golf Links golf course. Water is distributed to customers via approximately 45 miles of water pipelines varying in size up to 18 inches in diameter. One reservoir and one booster station are available to provide storage and control pressures in the system. The objective if the 2005 WSP Update is to evaluate the existing water system and its operation to: • Identify present and future needs, • Set forth the means for addressing those needs, and, Environmental Checklist -2- City of Tukwila October 24, 2005 Draft 2005 Water System Plan Update Applicant Responses: • • Agency Comments • Demonstrate that the system has the operational, technical, managerial, and financial capability to achieve and maintain compliance with all relevant local, state, and federal plans and regulations. The 2005 WSP Update is a Non - Project Action. Specific Capital Improvement Program (CIPs) projects cited in the WSP will have a separate State Environmental Policy Act (SEPA) review, where necessary. 11. Location of the proposal. Give sufficient information for a person to understand the precise location of your proposed project, including a street address, if any, the tax lot number, and section, township, and range. If a proposal would occur over a range of area, provide the range or boundaries of the site(s). Provide a legal description, site plan, vicinity map, and topographic map, if reasonably available. While you should submit any plans required by the agency, you are not required to duplicate maps or detailed plans submitted with any permit applications related to this checklist. The City of Tukwila is bounded by the City of SeaTac on the west, the City of Seattle on the north, the City of Renton on the east, and the City of Kent on the south. Tukwila's current and future service area, city boundary, and other adjacent purveyor service areas are shown in Exhibit 2 -1 of 2005 WSP Update. Currently, the City provides water for the majority of the area within the City boundary. Water for the remaining areas within the City boundary is provided by King County Water District (KCWD) 125, Highline Water District, the City of Renton, and KCWD 20. In the future, the City's service area will add five new areas in accordance with the City's Compreher..sive Plan which directs the City to provide water service to the entire area within the its boundary. This entails assuming service for areas within the City boundary currently served by other utilities. It also entails assuming service for Potential Annexation Areas (PAAs) which are not currently within the City boundary, but are anticipated to be annexed. The precise timing of adding these new service areas is dependent on a variety of factors and is not fully known. The topography of the serviced area ranges from lowlands surrounding the Green/Duwamish River valley to plateaus above the river valley walls with slope steepness between 15 and 70 percent. Service area elevation begins at sea level and ranges to over 400 feet above sea level, creating the need for many pressure zones within Tukwila's service area. 12: Does the proposal lie within an area designated on the City's Comprehensive Land Use Policy Plan Map as environmentally sensitive? Yes. However, as noted above, approval of the 2005 WSP Update is a Non - Project Action. Specific CIP projects cited in the 2005 WSP Update will have a separate environmental and regulatory review, where necessary. B. ENVIRONMENTAL ELEMENTS The proposed approval of the City of Tukwila's 2005 WSP Update is a Non - Project Action under SEPA, which includes decisions on policies, plans and programs, and is intended for long -term planning purposes. The 2005 WSP Update refers to the development of water Environmental Checklist -3- City of Tukwila October 24, 2005 Draft 2005 {eater System Plan Update • Applicant Responses: • Agency Comments supply CIP project that either is, or may become components of the City of Tukwila water supply system in the future. Project Actions referenced by the 2005 WSP Update that have environmental impacts associated with the construction, maintenance, and operation of those site - specific projects either have been or will be evaluated under SEPA during the specific project review processes. Section B, Environmental Elements, which applies to specific Project Actions is not applicable to the proposed approval of the City of Tukwila's 2005 WSP Update. Please refer to Section D, Supplemental Sheet for Non - Project Actions, which provides general programmatic -level environmental impact information. 1. Earth a. General description of the site (circle one): Flat, rolling, hilly, steep slopes, mountainous, other: b. What is the steepest slope on the site (approximate percent slope)? c. What general types of soils are found on the site (for example, clay, sand, gravel, peat, muck)? If you know the classification of agricultural soils, specify them and note any prime farmland. d. Are there surface indications or history of unstable soils in the immediate vicinity? If so, describe. e. Describe the purpose, type, and approximate quantities of any filling or grading proposed. Indicate source of fill. f. Could erosion occur as 'a result of clearing, construction, or use? If so, generally describe. About what percent of the site will be covered with impervious surfaces after project construction (for example, asphalt or buildings)? h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any: Sections 1(a) through 1(h) do not apply to the proposed approval of Tukwila's 2005 WSP Update. Please refer to Section D, Supplemental Sheet for Non - Project Actions, which provides general programmatic -level environmental impact information. g. 2. Air a. What types of emissions to the air would result from the. proposal (for example, dust, automobile odors, industrial wood smoke) during construction and when the project is completed? If any, generally describe and give approximate quantities if known. b. Are there any off -site sources of emissions or odor that may affect your proposal? If so, generally describe. c. Proposed measures to reduce or control emissions or other impacts to air, if any: Sections 2(a) through 2(c) do not apply to the proposed approval of Tukwila's 2005 WSP Update. Please refer to Section D, Supplemental Sheet for Non - Project Actions, which provides general programmatic -level environmental impact information. Environmental Checklist -4- City of Tukwila October 24, 2005 Draft 2005 Water System Plan Update Applicant Responses: • • Agency Comments 3. Water a. Surface: 1. Is there any surface water body on or in the immediate vicinity of the site (including year -round and seasonal streams, saltwater, lakes, ponds, wetlands)? If yes, describe type and provide names. If appropriate, state what stream or river it flows into. 2. Will the project require any work over, in, or adjacent to (within 200 feet) the described waters? If yes, please describe and attach available plans. 3. Estimate the amount of fill and dredge material that would be placed in or removed from surface water or wetlands and indicate the area of the site that would be affected. Indicate the source of fill material. 4. Will the proposal require surface water withdrawals or diversions? Give general description, purpose, and approximate quantities, if known. 5. Does the proposal lie within a 100 -year floodplain? If so, note location on the site plan. 6. Does the proposal involve any discharges of waste materials to surface waters? If so, describe the type of waste and anticipated volume of discharge. b. Ground: 1. Will ground water be withdrawn, or will water be discharged to ground water? Give general description, purpose, and approximate quantities, if known. 2. Describe waste materials that will be discharged into the ground from septic tanks or other sources, if any (for example:' Domestic sewage; industrial, contain &ng the following chemicals...; agricultural; etc). Describe the general size of the system, the number of such systems, the number of houses to be served (if applicable), or the number of animals or humans the system(s) are expected to serve: c. Water Runoff (including storm water): 1. Describe the source of runoff (including storm water) and method of collection and disposal, if any (include quantities, if known). Where will this water flow? Will this water flow? Will this water flow into other waters? If so, describe. 2. Could waste materials enter ground or surface waters? If so, generally describe. d. Proposed measures to reduce or control surface, ground, and runoff water impacts, if any: Sections 3(a) through 3(d) do not apply to the proposed approval of Tukwila's 2005 WSP Update. Please refer to Section D, Supplemental Sheet for Non - Project Actions, which provides general programmatic -level environmental impact information. Environmental Checklist -5- City of Tukwila October 24, 2005 Draft 2005 Water System Plan Update ' Applicant Responses: 4. Plants • a. Check or circle types of vegetation found on the site: • Agency Comments b. What kind and amount of vegetation will be removed or altered? c. List threatened or endangered species known to be on or near the site. d. Proposed landscaping, use of native plants, or other measures to preserve or enhance vegetation on the site, if any: Sections 4(a) through 4(d) do not apply to the proposed approval of Tukwila's 2005 WSP Update. Please refer to Section D, Supplemental Sheet for Non - Project Actions, which provides general programmatic -level environmental impact information. 5. Animals a. Circle any birds or animals which have been observed on or near the site or are known to be on or near the site: Birds: Hawk, heron, eagle, songbirds, other: Mammals Deer, bear, elk, beaver, other: Fish Bass, salmon, trout, herring, shellfish, other: Other b. List any threatened or endangered species known to be on or near the site. c. Is the site part of a migration route? If so, explain. • d. Proposed measures to preserve or enhance wildlife, if any: Sections 5(a) through 5(d) do not apply to the proposed approval of Tukwila's 2005 WSP Update. Please refer to Section D, Supplemental Sheet for Non - Project Actions, which provides general programmatic -level environmental impact information. 6. Energy and Natural Resources a. What kinds of energy (electric, natural gas, oil, wood stove, solar) will be used to meet the completed project's energy needs? Describe whether it will be used for heating, manufacturing, etc. b. Would your project affect the potential use of solar energy by adjacent properties? If so, generally describe. Environmental Checklist -6- City of Tukwila October 24, 2005 Draft 2005 Water System Plan Update Deciduous tree: alder, maple, aspen, other Evergreen tree: fir, cedar, pine, other Shrubs Grass Pasture Crop or grain Wet soil plants: cattail, buttercup, bulrush, skunk cabbage, other Water plants: water lily, eelgrass, milfoil, other Other types of vegetation b. What kind and amount of vegetation will be removed or altered? c. List threatened or endangered species known to be on or near the site. d. Proposed landscaping, use of native plants, or other measures to preserve or enhance vegetation on the site, if any: Sections 4(a) through 4(d) do not apply to the proposed approval of Tukwila's 2005 WSP Update. Please refer to Section D, Supplemental Sheet for Non - Project Actions, which provides general programmatic -level environmental impact information. 5. Animals a. Circle any birds or animals which have been observed on or near the site or are known to be on or near the site: Birds: Hawk, heron, eagle, songbirds, other: Mammals Deer, bear, elk, beaver, other: Fish Bass, salmon, trout, herring, shellfish, other: Other b. List any threatened or endangered species known to be on or near the site. c. Is the site part of a migration route? If so, explain. • d. Proposed measures to preserve or enhance wildlife, if any: Sections 5(a) through 5(d) do not apply to the proposed approval of Tukwila's 2005 WSP Update. Please refer to Section D, Supplemental Sheet for Non - Project Actions, which provides general programmatic -level environmental impact information. 6. Energy and Natural Resources a. What kinds of energy (electric, natural gas, oil, wood stove, solar) will be used to meet the completed project's energy needs? Describe whether it will be used for heating, manufacturing, etc. b. Would your project affect the potential use of solar energy by adjacent properties? If so, generally describe. Environmental Checklist -6- City of Tukwila October 24, 2005 Draft 2005 Water System Plan Update Applicant Responses: • Agency Comments c. What kinds of energy conservation features are included in the plans of this proposal? List other proposed measures to reduce or control energy impacts, if any: Sections 6(a) through 6(c) do not apply to the proposed approval of Tukwila's 2005 WSP Update. Please refer to Section D, Supplemental Sheet for Non - Project Actions, which provides general programmatic -level environmental impact information. 7. Environmental Health a. Are there any environmental health hazards, including exposure to toxic chemicals, risk of fire and explosion, spill, or hazardous waste, that could occur as a result of this proposal? If so, describe. 1. Describe special emergency services that might be required. 2. Proposed measures to reduce or control environmental health hazards, if any: b. Noise 1. What types of noise exist in the area which may affect your project (for example: traffic, equipment, operation, other)? 2. What types and levels of noise would be created by or associated with the project on a short -term or long -term basis (for example: traffic, construction, operation, other)? Indicate what hours noise would come from the site. 3. Proposed measures to reduce or control noise impacts, if any: Sections 7(a) through 7(b) do not apply to the proposed approval of Tukwila's 2005 WSP Update. Please refer to Section D, Supplemental Sheet for Non - Project Actions, which provides general programmatic -level environmental impact information. 8. Land and Shoreline Use a. What is the current use of the site and adjacent properties? b. Has the site been used for agriculture? If so, describe. c. Describe any structures on the site. d. Will any structures be demolished? If so, what? e. What is the current zoning classification of the site? f. What is the current comprehensive plan designation of the site? g. If applicable, what is the current shoreline master program designation of the site? h. Has any part of the site been classified as an "environmentally sensitive" area? If so, specify. i. Approximately how many people would reside or work in the completed project? J• k. Approximately how many people would the completed project displace? Proposed measures to avoid or reduce displacement impacts, if any: 1. Proposed measures to ensure the proposal is compatible with existing and projected land uses and plans, if any: Environmental Checklist -7- City of Tukwila October 24, 2005 Draft 2005 Water System Plan Update Applicant Responses: • • Agency Comments Sections 8(a) through 8(1) do not apply to the proposed approval of Tukwila's 2005 WSP Update. Please refer to Section D, Supplemental Sheet for Non - Project Actions, which provides general programmatic -level environmental impact information. 9. Housing a. Approximately how many units would be provided, if any? Indicate whether high, middle, or low- income housing? b. Approximately how many units, if any, would be eliminated? Indicate whether high, middle, or low- income housing. c. Proposed measures to reduce or control housing impacts, if any: Sections 9(a) through 9(c) do not apply to the proposed approval of Tukwila's 2005 WSP Update. Please refer to Section D, Supplemental Sheet for Non - Project Actions, which provides general programmatic -level environmental impact information. 10. Aesthetics a. What is the tallest height of any proposed structure(s), not including antennas; what is the principal exterior building material(s) proposed? b. What views in the immediate vicinity would be altered or obstructed? c. Proposed measures to reduce or control aesthetic impacts, if any: Sections 10(a) through 10(c) do not apply to the proposed approval of Tukwila's 2005 WSP Update. Please refer to Section D, Supplemental Sheet for Non - Project Actions, which provides general programmatic -level environmental impact information. 11. Light and Glare a. What type of light or glare will the proposal produce? What time of day would it mainly occur? b. Could light or glare from the finished project be a safety hazard or interfere with views? c. What existing off -site sources of light or glare may affect your proposal? d. Proposed measures to reduce or control light and glare impacts, if any: Sections 11(a) through 11(d) do not apply to the proposed approval of Tukwila's 2005 WSP Update. Please refer to Section D, Supplemental Sheet for Non - Project Actions, which provides general programmatic -level environmental impact information. 12. Recreation a. What designed and informal recreational opportunities are in the immediate vicinity? b. Would the proposed project displace any existing recreational uses? If so, describe. c. Proposed measures to reduce or control impacts on recreation, including recreation opportunities to be provided by the project or applicant, if any: Sections 12(a) through 12(c) do not apply to the proposed approval of Tukwila's 2005 WSP Update. Please refer to Section D, Supplemental Sheet for Non - Project Actions, which provides general programmatic -level environmental impact information. Environmental Checklist -8- City of Tukwila October 24, 2005 Draft 2005 Water System Plan Update Applicant Responses: • • Agency Comments 13. Historic and Cultural Preservation a. Are there any places or objects listed on, or proposed for, National, State, or Local preservation registers known to be on or next to the site? If so, generally describe. b. Generally describe any landmarks or evidence of historic, archaeological, scientific, or cultural importance known to be on or next to the site. c. Proposed measures to reduce or control impacts, if any: Sections 13(a) through 13(c) do not apply to the proposed approval of Tukwila's 2005 WSP Update. Please refer to Section D, Supplemental Sheet for Non - Project Actions, which provides general programmatic -level environmental impact information. 14. Transportation a. Identify public streets and highways serving the site, and describe proposed access to the existing street system. Show on site plans, if any. b. Is the site currently served by public transit? If not, what is the approximate distance to the nearest transit stop? c. How many parking spaces would the completed project have? How many would the project eliminate? d. Will the proposal require any new roads or streets, or improvements to existing roads or streets, not including driveways? If so, generally describe (indicate whether public or private). e. Will the project use (or occur in the immediate vicinity of) water, rail, or air transportation? If so, generally describe. f. How many vehicular trips per day would be generated by the completed project? If known, indicate when peak volumes would occur. Proposed measures to reduce or control transportation impacts, if any: g. Sections 14(a) through 14(g) do not apply to the proposed approval of Tukwila's 2005 WSP Update. Please refer to Section D, Supplemental Sheet for Non - Project Actions, which provides general programmatic -level environmental impact information. 15. Public Services a. Would the project result in an increased need for public services`(for example: fire protection, police protection, health care, schools, other)? If so, generally describe. b. Proposed measures to reduce or control direct impacts on public services, if any. Sections 15(a) through 15(b) do not apply to the proposed approval of Tukwila's 2005 WSP Update. Please refer to Section D, Supplemental Sheet for Non - Project Actions, which provides general programmatic -level environmental impact information. 16. Utilities a. Circle utilities currently available at the site: electricity, natural gas, water, refuse service, telephone, sanitary sewer, septic system other: Environmental Checklist -9- City ofTufivila October 24, 2005 Draft - 2005 Water System Plan Update Applitant Responses: • • Agency Comments b. Describe the utilities that are proposed for the project, the utility providing the service, and the general construction activities on the site or in the immediate vicinity which might be needed. Sections 16(a) through 16(b) do not apply to the proposed approval of Tukwila's 2005 WSP Update. Please refer to Section D, Supplemental Sheet for Non - Project Actions, which provides general programmatic -level environmental impact information. C. SIGNATURE The above answers are tr e . d omplete to the best of my knowledge. I understand that the Lead agency is relying on th ,1 i mike its decision. Signature: Date Submitted: /I/ 3/05 (NON- PROJECT PROPOSALS (E.G., SUBURBAN PLANS AND ZONING CODE TEXT CHANGES) MUST COMPLETE THE FOLLOWING PAGES). ■ Environmental Checklist -10- City of Tukwila October 24, 2005 Draft 2005 Water System Plan Update • Applicant Responses: • • Agency Comments D. SUPPLEMENTAL SHEET FOR NON-PROJECT PROPOSALS (do not use this sheet for project actions) Because these questions are very general, it may be helpful to read them in conjunction with the list of elements of the environment. When answering these questions, be aware of the extent the proposal, or the types of activities likely to result from the proposal, would affect the item at a greater intensity or at a faster rate than if the proposal were not implemented. Respond briefly and in general terms. The proposed action is the approval of the City of Tukwila's 2005 Water System Plan Update. The 2005 WSP Update refers to the development and utilization of water supply projects that either are, or may become components of the Tukwila water supply system. Environmental impacts would be associated with the construction, maintenance, and operation of those specific projects. Those impacts either have been or will be evaluated during the environmental review of the specific projects. The following paragraphs discuss potential impacts in a very general manner. 1. How would the proposals be likely to increase discharge to water; emissions to air; production, storage, or release of toxic or hazardous substances; or production of noise? The construction of some of the proposed components of Tukwila's water supply system may involve the creation and discharge of construction stormwater. Effects on surface waters during construction could include increased ninoff volumes and increased peak flows. Impacts to air quality due to the construction of water system facilities could include temporary increases in particulate emissions that would depend on the level and type of activity, soil characteristics, weather, and equipment employed; increased exhaust from construction equipment powered by gasoline and diesel engines; increases in emissions due to delays while transiting through the work areas; and fugitive dust. Some risk of spills/leakage from equipment will exist during construction. Normal precautions will be taken in storing equipment, hazardous fuels, and other materials used in construction of the CIP projects. Construction of the proposed CIP projects will generate short-term noise impacts caused primarily by equipment operation (i.e. trucks, trenching, and backhoes, etc.) associated with excavation, material removal, backfilling, minor demolition, and related activities. Proposed measures to avoid or reduce such increases are: Minimization of impacts to surface waters would be achieved through implementation of applicable Best Management Practices (BMPs) and compliance with regulatory requirements and permit conditions (e.g. NPDES Construction Stormwater Permit, if applicable). Minimization of impacts to air quality would be achieved by keeping exposed soils damp by spraying with water, covering truck loads, using wheel washers, removing particulate Environmental Checklist -11- City of Tukwila October 24, 2005 Draft 2005 Water System Plan Update ' Applicant Responses: a • Agency Comments matter deposited on public roads, covering dirt and debris piles, properly maintaining equipment, and communications and coordination with the proponents of other projects and appropriate local jurisdictions regarding the scheduling and routing of construction truck traffic to help eliminate or reduce delays encountered by local traffic. Such mitigation and coordination are usually facilitated by the local jurisdiction through traffic management and mitigation plans, haul road agreements, and other permitting requirements. To protect against hazardous substance spills from routine equipment operation and maintenance activities during construction, the contractor would be required to provide an emergency response plan and know proper hazardous materials storage, handling, and emergency procedures, including proper spill notification response requirements. Because construction noise will be variable and short term, contractors would implement the following measures to minimize disruption and inconvenience caused by construction activities: minimize idling time of equipment, operate equipment only during hours approved by the City of Tukwila, and ensure the adequacy of mufflers on all engines. 2. How would the proposal be likely to affect plants, animals, fish, or marine life? Water supply system components would not affect marine life. However, plants, animals, or fish could be affected by certain facilities depending on their location and function. Because most of the proposed improvements are buried water lines, the impacts would be temporary and limited to the construction period. Proposed measures to protect or conserve plants, animals, fish, or marine life are: The construction of system components would emphasize avoidance of impacts to plants, animals, and fish. Where complete avoidance is not possible, the principle of minimization would be stressed. Impacts would be mitigated and enhancement measures implemented, as appropriate. Generally, these protective provisions are set forth in land use codes, laws and regulations, and permit conditions. 3. How would the proposal be likely to deplete energy or natural resources? Water supply system components would consume, but not deplete, energy and natural resources. Proposed measures to protect or conserve energy and natural resources are: System components would be sited, designed, constructed, maintained and operated to be as efficient as possible. 4. How would the proposal be likely to use or affect environmentally sensitive areas or areas designated (or eligible or under study) for governmental protection; such as parks, wilderness, wild and scenic rivers, threatened or endangered species habitats, historic or cultural sites, wetlands, floodplains, or prime farmlands? None of the water system components are or would be located on prime farmlands, near wild and scenic rivers, or in wilderness areas. It is possible that some of the components could be located near, on, or traverse environmentally sensitive areas (e.g., wetlands, Environmental Checklist -12- City of Tukwila October 24, 2005 Draft 2005 Water System Plan Update • Applicant Responses:. • • Agency Comments streams, or floodplains). However, most of the CIP projects are replacements or new waterlines located within existing roadways. Endangered species habitat and historic or cultural sites would be avoided, whenever possible. Proposed measures to protect such resources or to avoid or reduce impacts are: System components would be sited with the intent of avoiding all environmentally sensitive areas. If impacts to an environmentally sensitive area were necessary, the footprint and construction impacts of the component would be minimized. For example, a bridged crossing is planned over the Green River for the new pipeline proposed along Southcenter Boulevard. 5. How would the proposal be likely to affect land and shoreline use, including whether it would allow or encourage land or shoreline uses incompatible with existing plans? The water system components would neither affect land and shoreline use nor allow or encourage land or shoreline uses incompatible with existing plans. Proposed measures to avoid or reduce shoreline and land use impacts are: System components would comply with existing land use and shoreline management plans. The majority of the system consists of underground water pipelines that are or would be located in existing rights -of -way. When a pipeline alignment requires passing through or in the vicinity of a shoreline, measures would be implemented to minimize construction impacts and to ensure proper restoration of the affected areas. 6. How would the proposal be likely to increas demands on transportation or public service and utilities? The proposed CEP projects will provide improved reliability to the City of Tukwila's water supply system. The construction, maintenance, and operation of water supply system components identified in the 2005 WSP Update would, to varying degrees depending on the specific facility and location, impact other utilities. No increased demands on transportation or public services are anticipated. Proposed measures to reduce or respond to such demand(s) are: The City will coordinate with local utilities regarding impacts to their facilities from construction of the CEP projects. 7. Identify, if possible, whether the proposal may conflict with Local, State, or Federal laws or requirements for the protection of the environment. The CEP projects identified in the 2005 WSP Update do not and will not conflict with local, state, or federal laws or requirements for the protection of the environment. Environmental Checklist -13- City of Tukwila October 24, 2005 Draft 2005 Water System Plan Update Lahy of '1 «,.,c sP 5crcenmg Lheckitst City of Tukwila - Endangered Species Act Screening Checklist Date: �� I `3/ Applicant Name: V"'` - `� as,, �- / C Street Address: L' 5ovr r- 71./w1 LA 131_ V/, City, State, Zip: v w , L. 4 , :t Telephone: '20C q 33 - G i Directions • This Screening Checklist has been designed to evaluate the potential for your project to result in potential "take" of chinook salmon, coho salmon, or cutthroat trout as defined by Section 9 of the Endangered Species' Act. The checklist includes a series of "Yes" or "No" questions aboiit your project; organized into four parts. Starting with Part A on Page 1, read each question carefully, circle "Yes" or "No," and proceed to the next question as directe4 by the checklist. To answer these questions, you may need to refer . to site plans, grading and drainage plans, critical areas studies, or other documents you have prepared for your project. The City will evaluate your responses to determine if "take" is indicated. /i 4 January 25, 2001 ii • • Part A: Please review and answer each question carefully. Consider all phases of your project including, but not limited to, construction, normal operation, potential emergency operation, and ongoing and scheduled maintenance. Continue to the next question as directed for each No or Yes answer. 1 -0 Will the project require any form of grading? Grading is defined as any excavating, filling, clearing, or creation of impervious surface, or any combination thereof, which alters the existing ground surface of the earth (see Tukwila Municipal Code (TMC) Chapter 18.06, Zoning Code, Page 18 -11). Please circle appropriate response. Continue to Question 2 -0 YES - Continue to Question 1 -1 (Page 3) 2 -0 Will the project require any form of clearing? Clearing means the removal or causing to be removed, through either direct or indirect actions, any vegetation from a site (see Chapter j3.06, Page 18 -8). Please circle appropriate response. /N - Continue to Question 3 -0 YES - Continue to Question 2 -1 (Page 4) 3 -0 Will the project require work, during any time of the project, below the ordinary high water mark of a watercourse or the Green/Duwamish or Black Rivers or in wetlands? Ordinary high water mark is the mark that is found by examining the bed and banks of a stream and ascertaining where the presence and action of waters are so common and usual as to distinctly mark the soil from that of the abutting upland, in respect to vegetation (see TMC Chapter 18.06, Page 18 -15). Please circle appropriate response. - Continue to Question 4 -0 YES - Continue to Question 3 -1 (Page 5) 4 -0 Will the project result in the processing or handling, storage, or treatment of hazardous substances? This does not include the proper use of fuel stored in a vehicle's fuel tank. Hazardous substances are any liquid, solid, gas, or sludge, including any material, substance, product, commodity, or waste, regardless of quantity, that exhibits the characteristics or criteria of hazardous waste as defined by Washington Administrative Code 173 -303 (see TMC Chapter 18.06, Tukwila Zoning Code, Page 18 -11). This includes fuel or other chemicals stored on -site during construction. Please circle appropriate response. Continue to Question 5 -0 YES - Continue to Question 5 -0 5 -0 Will the project result in the withdrawal, injection, or interception of groundwater? Examples of projects that may affect groundwater include, but are not limited to: construction of a new well, change in water withdrawals from an existing well, projects involving prolonged construction dewatering, projects installing French drains or interceptor trenches, and sewer lines. For the purpose of this analysis, projects that require a geotechnical report pursuant to the requirements of TMC 18.45.060 and 18.45.080E.4, or would require a geotechnical report if not exemptunder TMC 18.45.080A, should answer Yes. Please circle appropriate response. Continue to Question 6 -0 YES - Continue to Question 6 -0 Part A (continued) Ctty of '1 ukzeb5A Screening Checklist 62^ Will the project involve landscaping or re- occurring outdoor maintenance that includes the regular use of fertilizers, pesticides, or herbicides? This does not include the one -time use of transplant fertilizers. Landscaping means natural vegetation such as trees, shrubs, groundcover, and other landscape materials arranged in a manner to produce an aesthetic effect appropriate for the use of the land (see TMC Chapter 18.06, Tukwila Zoning Code, Page 18- 13). For the purpose of this analysis, this includes the establishment of new lawn or grass. 'f?hase circle appropriate response. NO Checklist Complete YES — Checklist Complete Part B: Please answer each question below for projects that include grading. Review each question carefully, considering' all phases of your project including, but not limited to construction, normal operation, potential emergency operation, and ongoing and scheduled maintenance. Continue to the next question as directed for c ch No or Yes answer. 1 -1 Will the project involve the modification of a watercourse bank or bank of the Green/Duwamish or Black Rivers between the ordinary high water mark and top of bank? This includes any projects that will require grading on any slope leading to a river or stream, but will not require work below the ordinary high water mark. Work below the ordinary high ,tit r mark is covered in Part C. Please circle appropriate response. .NO,/ Continue to Question 1 -2 YES'- Continue to Question 1 -2 1 -2 Could the construction, operation, or maintenance of the project result in sediment transport off site or increased rates of erosion and /or sedimentation in watercourses, the Green/Duwamish rivers, or the Black River? Most projects that involve grading have the potential to result in increased erosion and/or sedimentation as a.result of disturbances to the soil or earth. If your -� ana - : ":--e not ^r°^ared a Temporary Erosion and Sedimentation pry;:;,, �aaarv.,vJDau.....- .._,�� -.._. ..,, �. Control Plan specifically designed to retain 100 percent of the runoff (including during construction) from impervious surface or disturbed soils, answer Yes to this question. If your project is normally exempt under the Tukwila Municipal Code and would not require the preparation of a Temporary Erosion and Sedimentation Control Plan, BUT may still result in erosion or sediment transport off site or beyond the work area, answer Yes to this question. Please circle appropriate response. Continue to Question 1 -3 YES - Continue to Question 1 -3 1 -3 Will the project result in the construction of new impervious surfaces? Impervious surfaces include those hard surfaces which prevent or restrict the entry of water into the soil in the manner that such water entered the soils under natural conditions prior to development; or a hard surface area that causes water to run off the surface in greater quantity or at an increased rate of flow from the flow presented under natural conditions prior to development (see TMC Chapter 18.06, Tukwila Zoning Code, Page 18 -12). Such areas include, but are not limited to, rooftops, asphalt or concrete paving, compacted surfaces, or other surfaces that similarly affect the natural infiltration or runoff patterns existing prior to development. Please circle Litij of I ukw 3AAA Screening Lheckltst aropriate response. NO ' Continue to Question 2 -0 (Page 2) YES - Continue to Question 1-4 1 -4 Will your project generate stormwater from the creation of impervious surfaces that will not be infiltrated on site? For the purpose of this analysis, infiltration includes the use of a stormwater treatment and management system intended to contain all stormwater on site by allowing it to seep into pervious surface or through other means to be introduced into the ground. If your project involves the construction of impervious surface and does not include the design of a stormwater management system specifically designed to infiltrate stormwater, a swer Yes to this question. Please circle appropriate response. NO - Continue to Question 2 -0 (Page 2) S - Continue to Question 2 -0 (Page 2) Part C: Please review each question below for projects that include clearing. Review each question carefully, considering all phases of your project including, but not limited to construction, normal operation, potential emergency operation, and ongoing and scheduled maintenance. Continue to the next question as directed for each No or Yes answer. 2-1 Will the project involve clearing within 200 feet of the ordinary high water mark of a watercourse or the Green/Duwamish or Black Rivers? Please circle appropriate response. NO Continue to Question 3 -0 (Page 2) YES - Continue to Question 2 -2 2 -2 Will the project involve clearing of any trees within 200 feet of the ordinary high water mark of a watercourse or the Green/Duwamish or Black Rivers? A tree is defined by TIM 18.06.845 as any self-supporting of 2 inches or more characterized by one main trunk, minimum with a 10 feet. potential diameter-breast-height lease circle appropriate response. `O - Continue to Question 2 -3 YES - Continue to Question 2 -3 2 -3 Will the project involve clearing of any evergreen trees from r wwithinD 00 feet of the ordinary _ high water mark of a watercourse or the Green/Duwamish or Black F,i crs For the purpose a this analysis evergreen means any tree that does not regularly lose all its leaves or needles in e fall. Please circle appropriate response. N�- Continue to Question 2-4 YES - Continue to Question 2 -4 2 -4 Will the project involve clearing within 100 feet of the ordinary high water mark of a watercourse or the Green/Duwamish or Black Rivers? Please circle appropriate response. �NO Continue to Question 3 -0 (Page 1) YES - Continue to Question 2 -5 2 -5 Will the project involve clearing within 40 feet of the ordinary high water mark of a watercourse or the Green/Duwamish or Black Rivers? Please circle appropriate response. Lay°, wa NO Continue to Question 3 -0 (Page 2) YES = Continue to Question 3 -0 (Page 2) 3A Screening Uheckltst Part D: Please review each question below for projects that include .' rk below the ordinary high water mark of watercourses or the Duwa..l:sii /Green or Black Rivers or in wetlands. Review each question carefully, considering all phases of your project including, but not limited to, construction, normal operation, potential emergency operation, and ongoing and scheduled maintenance. Continue to the next question as directed for each No or Yes answer. 3 -1 Will the project involve the direct alteration of the channel or bed of a watercourse, the Green/Duwamish rivers, or Black River? For the purpose of this analysis, channel means the area between the ordinary high water mark of both banks of a stream, and bed means the stream bottom substrates, typically within the normal weft - width of a stream. This includes both-temporary and permanent modifications. Please circle appropriate response. NO Continue to Question 3 -2 YES - Continue to Question 3 -2 3 -2 Will the project involve any physical alteration to a watercourse or wetland connected to the Green/Duwamish River? For the purpose of this analysis, "connected to the river means" flowing into via a surface connection or culvert, or having other physical characteristics that allow for access by salmonids. This includes impacts to areas such as sloughs, side channels, remnant oxbows, ditches formed from channelized portions of natural watercourses or any area that may provide off channel rearing habitat for juvenile fish from the Duwamish River. This includes both temporary construction alteration's and permanent modifications. Watercourses or wetlands draining to the Green/Duwamish River that have a hanging culvert, culvert with a flap gate, diversion, or any entirely man -made or artificial structure that precludes fish access sal suld answer Yes to this question. Please circle appropriate response. Continue to Question 3 -3 YES - Continue to Question 3 -3 . 3 -3 Will the project result in the construction of a new structure or hydraulic condition that could be a barrier to salmonid passage within the watercourse or the Green/Duwamish or Black Rivers? For the purpose of this analysis, a barrier means any artificial or human modified structure or hydraulic condition that inhibits the natural upstream or downstream movement of sJ.hr onids, including both juveniles and adults. Please circle appropriate response. . NO Continue to Question 3 -4 YES - Continue to Question 3-4 3 -4 Will the project involve a temporary or permanent change in the cross - sectional area of a watercourse or the Green/Duwamish or Black Rivers? For the purpose of this analysis, the cross - sectional area is defined as a profile taken from the ordinary high water mark on the right bank to the ordinary high water mark on the left bank. Please circle appropriate response. _\ iV0 Continue to Question 3 -5 YES - Continue to Question 3 -5 3 -5 Will the project require the removal of debris from within the ordinary high water mark of a Ely of 1 uKmtla LSA Screening CheckiLsi Green/Duwamish or Black Rivers? For the purpose of this analysis, debris includes, but is not limited to fallen trees, logs, shrubs, rocks, piles, rip -rap, submerged metal, and broken concrete or other building materials. Projects that would require debris removal from a watercourse or the Green/Duwamish or Black Rivers as part of a maintenance activity shogld answer Yes to this question. Please circle appropriate response. Continue to Question 3 -6 YES - Continue to Question 3 -6 3 -6 Will the project result in impacts to watercourses or wetlands that have a surface connection 1 another watercourse or the Green/D.. or Black Rivers but do not contain habitat conditions that support salmonid use? Such areas may include, but not be limited to hillside seeps and wetlands isolated from the watercourse or river that have a surface water connectio to the watercourse or river but are not assessable, nor would be assessable to salmonids under natural conditions. Wetlands with a "functions and values" rating for baseflow /groundwater support of 9 and above (or moderate) as described in Cooke (1996) should be included. Plea: circle appropriate response. NO - Continue to Question 3 -7 YES - Continue to Question 3 -7 3 -7 Will the project include the construction of artificial waterways or wetlands connected to a watercourse containing salmonids? For the purpose of this analysis, the construction of artificial waterways or wetlands includes wetlands, channels, sloughs, or other habitat feature created to enhance wildlife use, particularly waterfowl use, or may be attractive to wildlife, icularly waterfowl. Please circle appropriate response. NO .2 Continue to Question 3 -8 YES - Continue to Question 3 -8 _ 3 -8 Will the project include bank stabilization? For the purpose of this analysis, bank stabilizatio includes, but is not limited to, rip -rap, rock, log, soil, or vegetated revetments, concrete structures, or similar structures. Please circle appropriate response. NO O Continue to Question 4 -0 (Page 2) S - Continue to Question 4 -0 (Page 2) <EES_OLY>. PLOT DATE. 02 /17/05 TIME. 12.56 • <EES_0LY >M: \ Tukwila \3 -04- 113 \ Exhibits \Tukw Io Hyd Exh!bit.DWG <11x17> W -025 0 1 W -024 W -022 :/ W-001 W -008 W -012 W -004 W -013 \‘ ;1 ;1 ;' !r W -018 J —W-021 LEGEND 3000 6000 SCALE IN FEET 20052011 CIP (W-001 to W -012, W -014, W-019 to W-021) - 2011.2024 CIP (W -013, W -016 to W -018) EXHIBIT 10 -1 City of Tukwila Water System Plan Capital Improvement Projects February 2005 � emcees • scutxn[i • Appendix Q • Clty of Tukwila Water System Plan Water Model Map ��''Fetnwry 2005 Fla( I ae LEGEND • 20054011 CIP (W•01 b 11V•77. W -014. W -019 to 1/441i1) 20I1•02r CIP (W -015. W -015 b W -015) • mm rrf FlQi Appendix T City of Tukwila Water System Capital Improvement Projects February 2006 I-in I Ames