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HomeMy WebLinkAboutSEPA E06-014 - WOLD CHRISTINA - RIVERTON CREEK DREDGING AT INTERNATIONAL GATEWAY EASTIGE STREAM DREDGING SABEY APN# 102304-9079 E06 -014 • 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: E06 -014 Applied: 07/06/2006 Issue Date: 08/07/2006 Status: ISSUED Applicant: CHRISTINA WOLD Lead Agency: City of Tukwila Description of Proposal: Riverton Creek dredging, gabion wall repair and sedimentation pond enlargement at Int. Corporate Campus East. A restoration /mitigation plan is proposed. A Sensitive Area Approval and HPA are also required for the work. Location of Proposal: Address: Parcel Number: Section/Township/Range: 12201 TUKWILA INTERNATIONAL BL TUKW 0923049120 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. This DNS is issued under WAC 197 -11- 340(2). Comments must be submitted by ,f'C✓ s4- 02I i c2-4X 7 The lead agency will not act on this proposal for 14 days from the date below. V Steve Lancaster, Responsible Official City of Tukwila 6300 Southcenter Blvd Tukwila, WA 98188 (206)431 -3670 A" Spa � � 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 E06 -014 Printed: 08 -04 -2006 Dept. Of Community Development City of Tukwila AFFIDAVIT OF DISTRIBUTION /, HEREBY DECLARE THAT: Notice of Public Hearing Determination of Non - Significance Project Name: (24V-&+bV-) (1A2.0=,1111._ Notice of Public Meeting Mailer's Signature: Mitigated Determination of Non - Significance Person requesting mailing: U vtit 4t 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 - Seattle WA 98111 Other Was mailed to each of the addresses listed on this / day of year 20 OLL in the P:GINAWYNETTA/FORMS /AFFIDAVIT -MAIL 08/29/003:31 PM . Project Name: (24V-&+bV-) (1A2.0=,1111._ Project Number: 5a-e----0 Mailer's Signature: b'�? /� "�-i� Person requesting mailing: U vtit 4t 1-.'l 0,04..4_ P:GINAWYNETTA/FORMS /AFFIDAVIT -MAIL 08/29/003:31 PM . • FEDERAL AGENCIES S. ARMY CORPS OF ENGINEERS FEDERAL HIGHW AY ADMINISTRATION ( ) DEPT OF FISH & VVILDLIFE () U.S. ENVIRONMENTAL PROTECTION AGENCY () U.S. DEPT OF H.U.D. ( ) NATIONAL MARINE FISHERIES SERVICE WASHINGTON STATE AGENCIES () DEPT OF SOCIAL & HEALTH SERV. () DEPT OF ECOLOGY, SHORELAND DIV EPT OF ECOLOGY, SEPA DIVISION* 1) OFFICE OF ATTORNEY GENERAL CHKLIST W/ DETERMINATIONS SITE MAPS WITH DECISION ( ) OFFICE OF ARCHAEOLOGY ( ) TRANSPORTATION DEPARTMENT () DEPT NATURAL RESOURCES () OFFICE OF THE GOVERNOR lb) (DEPT OF COMM. TRADE & ECONOMIC DEV. DEPT OF FISHERIES & WILDLIFE > • SEND • SEND KING COUNTY AGENCIES () BOUNDARY REVIEW BOARD ( ) FIRE DISTRICT #11 ( ) FIRE DISTRICT #2 ( ) K.C. WASTEWATER TREATMENT DIVISION () K.C. DEPT OF PARKS & REC () K.C. ASSESSORS OFFICE ( ) TLIKWILA SCHOOL DISTRICT ( ) TUKWILA LIBRARY () RENTON LIBRARY () KENT LIBRARY () CITY OF SEATTLE LIBRARY () OWEST ( ) SEATTLE CITY LIGHT () PUGET SOUND ENERGY () HIGHLINE WATER DISTRICT () SEATTLE WATER DEPARTMENT ( ) AT &T CABLE SERVICES SCHOOLS /LIBRARIES UTILITIES CITY AGENCIES () KENT PLANNING DEPT ( ) TUKWILA CITY DEPARTMENTS: () PUBLIC WORKS () FIRE () POLICE () FINANCE () PLANNING () BUILDING () PARKS & REC. () MAYOR ( ) CITY CLERK OTHER ( ) PUGET SOUND REGIONAL COUNCIL ( ) SW K C CHAMBER OF COMMERCE ( ) MUCKLESHOOT INDIAN TRIBE ( ) CULTURAL RESOURCES PROGRAM 04 FISHERIES PROGRAM ( ) WILDLIFE PROGRAM ( ) SEATTLE TIMES ( ) SOUTH COUNTY JOURNAL P:WDMTNISTRATIV E \FORMS\CHKLIST.DOC ( ) HEALTH DEPT () PORT OF SEATTLE () KC. DEV & ENV!R SERVICES -SEPA INFO CNTR ( ) KC. TRANSIT DIVISION - SEPA OFFICIAL ( ) K.C. LAND & WATER RESOURCES () FOSTER LIBRARY ( ) K C PUBLIC LIBRARY ( ) HIGHLINE SCHOOL DISTRICT ( ) SEATTLE SCHOOL DISTRICT () RENTON SCHOOL DISTRICT ( ) OLYMPIC PIPELINE ( ) VAL VUE SEWER DISTRICT ( ) WATER DISTRICT #20 ( ) WATER DISTRICT #125 () CITY OF RENTON PUBLIC WORKS () BRYN MAWR- LAKERIDGE SEWERM/ATER DISTRICT () RENTON PLANNING DEPT () CITY OF SEA -TAC () CITY OF BURIEN () TUKWILA PLANNING COMMISSION MEMBERS ( ) TUKWILA CITY COUNCIL MEMBERS () CITY OF SEATTLE - SEPA INFO CENTER - DCLU () STRATEGIC PLANNING OFFICE' • NOTICE OF ALL SEATTLE RELATED PLNG PROJ. LOCAL AGENCIES ((DLIWAMISH INDIAN TRIBE () P.S. AIR POLLUTION CLEAN AGENCY () SOUND TRANSIT () DUWAMISH RIVER CLEAN -UP COALITION 'SEND NOTICE OF ALL APPUCATIONS ON OUWAMISH RIVER MEDIA ( ) HIGHLINE TIMES ( ) CLTUKWILA.WA.US.VWVW 5 0-�4.-/ Ci0 (To vf� 1LIC NOTICE MAILINGS FOR TS SEPA MAILINGS Mail to: (comment period starts on date of mailing) Dept. of Ecology Environmental Review Section *Applicant *Other agencies as necessary (checked off on attached list) Any parties of record • send only the staff report, site plan and the SEPA Determination KC Transit Division — SEPA Official would like to receive information about all projects that might affect transit demand Send These Documents to DOE: SEPA Determination (3 -part from Sierra) Findings (staff report, usu. with MDNS) SEPA Checklist (filled out by applicant) Drawings/Plans of project (site plan, elevations, etc. from PMT's) Affidavit of Distribution (notice was mailed or sent to newspaper) SHORELINE MAILINGS: Notice of Application for a Substantial Development Permit must be mailed to owners and to property owners within 500 feet of subject property, comments are due 30 days after the notice of application is mailed/posted. The notice of Application for Shoreline Substantial Development Permit must include a statement that any person desiring to submit written comments on the application or desiring to receive notification of the final decision on the application may do so within 30 days of the notice of application. If a hearing will be held on the application, the hearing notice must include the information that written comments may be submitted, or oral presentation made at the hearing. Shoreline Permit Notice of Decision: Mail to: (within 8 days of decision; 21-day appeal period begins date received by DOE) Department of Ecology Shorelands Section State Attorney General . *Applicant •Indian Tribes .. 'Other agencies as necessary (checked off on attached list). Any parties of record • send only the staff report, site plan and the SEPA Determination Send These Documents to DOE and Attorney General: Permit Data Sheet Shoreline Substantial Development Permit (3 -part from Sierra) Findings (staff report or memo) Shoreline Permit Application Form (filled out by applicant) Drawings/Plans of project (site plan, elevations, etc. from PMI's) - Site plan, with mean high water mark & improvements — Cross- sections of site with structures & shoreline - Grading Plan — Vicinity map SEPA determination (3 -part from Sierra) Findings (staff report or memo) SEPA Checklist (filled out by applicant) Any background studies related to impacts on shoreline Notice of Application Affidavit of Distribution (notice was mailed) P: IADMINISTRATIVEIFORMS \CHXLIST.DOC OWNER NAME GIPSON JAMES E Tenant Tenant INTERNATIONAL GATEWAY WEST SABEY CORPORATION Tenant SHERLOCK GREG Tenant Tenant Tenant Tenant Tenant Tenant Tenant Tenant LE THOM T TOMLINSON & TOMLINSON REAL LAFAVE LYNN Tenant BERNHARDT ROBERT J C Tenant PETTIT DENNIS C & BARBARA J DOOPER DIANA M & DOOPER MARK Tenant KOCH DANIEL KING COUNTY TAZELAAL ANNEMARIELU TUKWILA COMMUNITY MEMBER TUKWILA COMMUNITY MEMBER TUKWILA COMMUNITY MEMBER TUKWILA COMMUNITY MEMBER TUKWILA COMMUNITY MEMBER TUKWILA COMMUNITY MEMBER TUKWILA COMMUNITY MEMBER TUKWILA COMMUNITY MEMBER TUKWILA COMMUNITY MEMBER TUKWILA COMMUNITY MEMBER TUKWILA COMMUNITY MEMBER TUKWILA COMMUNITY MEMBER TUKWILA COMMUNITY MEMBER OWNER ADDRESS 10900 NE 4TH ST 2300 11911 E MARGINAL WAY S 12101 TUKWILA INTERNATIONAL BLVD 12201 TUKWILA INTERNATIONAL BLVD 12201 TUKWILA INTERNATIONAL BLVD 12301 TUKWILA INTERNATIONAL BLVD 12435 TUKWILA INTERNATIONAL BLVD 12455 TUKWILA INTERNATIONAL BLVD 12471 TUKWILA INTERNATIONAL BLVD 12500 S 35TH AVE 12527 35TH AVE S 12613 35TH AVE S 12614 35TH AVE S 12624 34TH AVE S 12627 34TH AVE S 12633 35TH AVE S 17385 SYLVESTER RD SW 29023 220TH PL SE 3417 S 120TH PL 3418 S 126TH ST 3433 S 120TH PL 3519 S 126TH ST E 3525 S 126TH ST 3530 S 126TH ST 425 S 19TH ST 500 4TH AVE 500 PO BOX 68603 12437 TUKWILA INTL 12437 TUKWILA INTL 12437 TUKWILA INTL 12437 TUKWILA INTL 12437 TUKWILA INTL 12437 TUKWILA INTL 12437 TUKWILA INTL 12437 TUKWILA INTL 12437 TUKWILA INTL 12437 TUKWILA INTL 12437 TUKWILA INTL 12437 TUKWILA INTL 12437 TUKWILA INTL BLVD Apt 1 BLVD Apt 10 BLVD Apt 11 BLVD Apt 12 BLVD Apt 13 BLVD Apt 2 BLVD Apt 3 BLVD Apt 4 BLVD Apt 5 BLVD Apt 6 BLVD Apt 7 BLVD Apt 8 BLVD Apt 9 OWNER CITY OWN OWNER ZIP BELLEVUE WA 98004 TUKWILA WA 98168 TUKWILA WA 98168 TUKWILA WA 98168 TUKWILA WA 98168 TUKWILA WA 98168 TUKWILA WA 98168 TUKWILA WA 98168 TUKWILA WA 98168 TUKWILA WA 98168 SEATTLE WA 98168 TUKWILA WA 98168 SEATTLE WA 98168 TUKWILA WA 98168 TUKWILA WA 98168 TUKWILA WA 98168 BURIEN WA 98166 BLACK DIAMC WA 98010 TUKWILA WA 98168 TUKWILA WA 98168 TUKWILA WA 98168 TUKWILA WA 98168 TUKWILA WA 98168 TUKWILA WA 98168 RENTON WA 98055 SEATTLE WA 98104 SEATTLE WA 98168 TUKWILA WA 98168 -2500 TUKWILA WA 98168 -2500 TUKWILA WA 98168 -2500 TUKWILA WA 98168 -2500 TUKWILA WA 98168 -2500 TUKWILA WA 98168 -2500 TUKWILA WA 98168 -2500 TUKWILA WA 98168 -2500 TUKWILA WA 98168 -2500 TUKWILA WA 98168 -2500 TUKWILA WA 98168 -2500 TUKWILA WA 98168 -2500 TUKWILA WA 98168 -2500 • • Page 1 of 1 4 Scale: 1" = 400 ' N CityGIS5 Copyright © 2004, MI Rights Reserved The information contained herein i s the proprietary property cf the contributors supplied under license and may not be reproduced except as licensed by cigtal Map Products http:/ /maps.digitalmapcentral.com / production / CityGIS5 /CityGIS5 5.17.2 /index.html 07/11 /2006 • Cg of R&M Department of Community Development MEMORANDUM TO: Steve Lancaster, DCD Director FROM: Nora Gierloff, Planning Supervisor RE: Intergate East Stream Dredging DATE: August 4, 2006 Steven M. Mullet, Mayor Steve Lancaster, Director Project File: E06 -014 Associated Files: L06 -044 Sensitive Area Special Permission Applicant: Sabey Corporation Project Location: 12201 Tukwila International Bl. Parcel #102304 -9079 Studies submitted with the applications include: Stream Restoration and Planting Plan by Altmann Oliver Associates Attachment: A. Site Plan Project Description: Perform stream dredging, repair or replacement of existing gabion walls and enlargement of a sediment pond for a segment of Riverton Creek. This will maintain the stability of the side slopes and reduce flooding. Water will be temporarily by- passed through the work area and the work will be completed by means of a suction dredge. The dredge will not leave the adjacent paved area to conduct the work. The sediment pond will allow settlement of heavier sediments above an existing barrier to fish. Stream restoration is proposed as mitigation for the effects of this work. The section of Creek affected is between Highway 99/Tukwila International Boulevard and the International Corporate Campus East development. Agencies with Jurisdiction: Washington State Department of Ecology Q: \ IGE_STream \ E06- 014.doc Page 1 of 3 08/04/2006 6300 Southcenter Boulevard, Suite #100 0 Tukwila, Washington 98188 0 Phone: 206 - 431 -3670 o Fax: 206 - 431 -3665 Washington State Department of Fish and Wildlife Comments to SEPA Checklist: None. Summary of Primary Impacts: 1. Earth - During construction approximately 300 cubic yards of dredged materials will be removed from approximately 600 feet of Riverton Creek and approximately 300 cubic yards of clean washed gravel will be imported. Gabion and block walls supporting the side slopes will be repaired where necessary. Temporary drainage by -pass and erosion control devices such as silt fences, temporary holding/siltation ponds and straw bales will be installed and monitored according the TESCP. No significant negative earth impacts are expected to result from the project and it will promote long term stability of the channel. 2. Air - There will be exhaust emissions from construction equipment and trucks carrying the cut and fill materials and construction materials during the project. The project will have no air emissions when complete. 3. Water — The site is a 600 foot length of Riverton Creek that will be dredged to reduce the risk of flooding. A segmented temporary bypass system will be used to allow stream flows to pass through the work areas. This is to consist of a method of blocking the stream with sand bag headwalls penetrated by a 12" temporary culvert. In stream work will be completed by means of a suction dredge. The dredge will not leave the adjacent paved area to conduct the work. The work will progress in a sequential manner from one end of the work zone to the other. The plan will have to meet the criteria and standards in Tukwila's Sensitive Areas Overlay District. 4. Plants — Vegetation removal will be minimized. The stream restoration plan by Altmann Oliver Associates identifies the mitigation /restoration areas along with the planting plan and specifications. As part of the work invasive species will be removed and the areas replanted. 5. Animals — Riverton Creek is salmon - bearing and drains to the Green/Duwamish River. 6. Energy and Natural Resources - The project will require energy for construction equipment during the duration of the work. Q: \ IGE_STream \ E06- 014.doc Page 2 of 3 08/04/2006 7. Environmental Health - Construction activities and equipment must meet Tukwila's noise ordinance. 8. Land and Shoreline Use - The proposed project area is adjacent to an existing parking lot and office/high tech building. 9. Housing - The project will not have any housing impacts. 10. Aesthetics - The method of dredging will minimize disturbance to existing vegetation. Areas disturbed due to removal of invasive species or expansion of the settlement pond will be replanted with native species. 11. Light and Glare - No changes proposed. 12. Recreation - The proposal will not affect existing recreational facilities. 13. Historical and Cultural Preservation - The site is not known to have any historical or cultural significance. In the event that construction activities encounter historic or cultural artifacts construction will be halted and a qualified archeologist will be consulted. 14. Transportation - The project will not have any long term traffic impacts. 15. Public Services- The project will not affect demand on public services. 16. Utilities - The project will not increase the use of utilities on site. Recommended Threshold Determination: Determination of non - significance. Q: \ IGE_STream \ E06- 014.doc Page 3 of 3 08/04/2006 Nora Gierloff - Riverton Creek dredging'= 6 -014 Determination of Non - Significance From: "Karen Walter" < Karen .Walter @muckleshoot.nsn.us> To: <ngierloff @ci.tukwila.wa.us> Date: 8/21/06 2:22PM Subject: Riverton Creek dredging E06 -014 Determination of Non - Significance Nora, As I mentioned in a voicemail earlier today, I have reviewed the environmental checklist, the site plans, and the proposed stream restoration report for the above referenced project. I have a couple of questions about this proposal. 1. Where is this site in relationship located on Riverton Creek (i.e. approximate river mile)? 2. How close is this site to the site where Boeing did some stream restoration and built a sediment pond in 1997 or 1998? How well is this sediment pond working? 3. Please elaborate on the "fish barrier" where the sediment will be built (page 3 of checklist)? Is this a natural barrier or human created barrier that could be removed? If it is a human created barrier, why isn't the new sediment pond being built off -line from the stream channel? 4. Is the stream currently 4 feet wide or will it be 4 feet wide after the dredge? 5. How did the applicant determine that re- vegetating 3350 square feet of riparian habitat was sufficient mitigation? 6. A related question is the dredging, the rock gabion work, and instream sediment pond will cause an impact to any existing stream habitat- why isn't the restoration plan proposing any instream mitigation (i.e. placement of wood or rootwads) to increase instream habitat and make it more complex? 7. Has the applicant evaluated the potential to widen the stream and increase its flood storage capacity to address flooding concerns? Are there any stormwater facilities on site? If so, why aren't these facilities addressing the flooding issues? Nora Gierloff - Riverton Creek dredging -014 Determination of Non - Significance • 8. When was this stream last dredged? 9. What is phase 2 that is mentioned in the stream report? We appreciate your response to these questions as they will help us better understand this project and determine potential impacts to salmonids and their habitat. Karen Walter Watershed and Land Use Team Leader Muckleshoot Indian Tribe Fisheries Division 39015 172nd Ave SE Auburn WA 98092 253 - 876 -3116 1. Where is this site in relationship located on Riverton Creek (i.e. approximate river mile)? A) Riverton Creek enters the Duwamish River near the pacific hwy bridge in Tukwila. The project is approximately % mile up stream from this point. The attached site map indicates the areas on IGE that we have already mitigated and indicates the proposed area to be worked. 2. How close is this site to the site where Boeing did some stream restoration and built a sediment pond in 1997 or 1998? A) The proposed project is in the same location as the Boeing work performed in 1997 or 1998 2a.How well is this sediment pond working? B) The pond fills with Sediment with in 6 months of being dredged. The pond is not working to our expectations. 3. Please elaborate on the "fish barrier" where the sediment will be built (page 3 of checklist)? Is this a natural barrier or human created barrier that could be removed? If it is a human created barrier, why isn't the new sediment pond being built off -line from the stream channel? A) The sediment pond is not being built it is being expanded. The Barrier is human created and again the sediment pond is only being expanded. If we remove the barrier we would have serious erosion problems due to the elevation. We have looked in to the possibilities of working with The Mid Puget Sound Fisheries Enhancements Group to look in to alternatives for the fish barrier in the future. '4. Is the stream currently 4 feet wide or will it be 4 feet wide after the dredge? A) The stream is currently 4 feet wide. The edges of the stream are defined by a rockery on both sides. 5. How did the applicant determine that re- vegetating 3350 square feet of riparian habitat was sufficient mitigation? A)The 3350 s.f. of restoration area equals the area disturbed during sediment pond construction as well as the area along the stream buffer recommended for recommended for re- planting during a site visit with Larry fisher of the WDFW 6. A related question is the dredging, the rock gabion work, and instream sediment pond will cause an impact to any existing stream habitat- why isn't the restoration plan proposing any instream mitigation (i.e. placement of wood • • or rootwads) to increase instream habitat and make it more complex? A) In stream structures are not proposed since there are no negative in stream impacts and access to the stream for dredging will be limited to a vactor truck. Installation of in stream structures would require short term grading impacts that are not warranted for this work. Furthermore, removal of sediment should increase overall fish habitat. 7. Has the applicant evaluated the potential to widen the stream and increase its flood storage capacity to address flooding concerns? Are there any stormwater facilities on site? If so, why aren't these facilities addressing the flooding issues? A) Slopes, elevations, and access limit realistic opportunities for address long -term additional flood storage. Flooding is caused by a loss of capacity due to sediment build up in the streambed. Flow com primarily from off site, so on site storage will not solve the flooding problem. The site is currently developed, so there is not opportunity to widen the stream. 8. When was this stream last dredged? A) The site was purchased in 1999 from Boeing. It was explained by Boeing facility personal that they had experienced some flooding due to the overflowing of Riverton Creek. I do not know the year but was told they filed for an emergency HPA permit which allowed them to dredge the stream and dig a sediment pond at the head of the stream where it enters the property on the South. The site assumed the HPA maintenance for the pond only from Boeing and has over the past 6 years continued to clean out the sediment pond on an annual basis. However, the pond has limited capacity and is no longer able to sustain a full year between maintenance. 9. What is phase 2 that is mentioned in the stream report? A) Phase 2(and Phase 1) refers to the stream restoration that was completed as part of the overall site development. iandra Whiting - Re: IGE Stream Dredging Page 11 From: Sandra Whiting To: Nora @ci.tukwila.wa.us, Date: 7/11/06 8:29AM Subject: Re: IGE Stream Dredging Nora, I reveiwed the checklist and the drawings. They didn"t submit the planting plan that was supposed to be prepared by the wetland- stream consultant. Even worse, the checklist doesn"t even mention enlarging the in- stream sediment basin or any mitigation in the stream buffer where the sediment basin will be expanded. The checklist also fails to mention salmon as an endangered species that occurs at the site. Under the plants section of the checklist, no mention is made of any wet soil plants which will be disturbed as part of dredging and for the enlargement of the sediment basin and where it says Proposed Landscaping... the checklist says NA! We specifically discussed the need for buffer enhancement as mitigation and Larry Fisher told them they need to plant more native trees for shade in certain parts of the stream corridor, as mitigation. So, these are my immediate concerns. I guess we don't have to have the planting plan right now for SEPA, but the checklist should acknowlege that the buffer is being disturbed as well as wet soil plants and that there will be mitigation. E -mail if you have any questions. Sandra «< Nora Gierloff 7/ 6 3:22p »> Hello, Your application for SEPA and Special Permission SAO came today and you are missing the following items: From the SEPA Application Checklist 2. Completed ESA Screening Checklist (missing, see attached) and drawings (5 copies) (only 2 sets submitted) . 3. One set of all plans reduced to 8 1/2" by 11" or 11" by 17 ". 6. Payment of a $365 notice board fee to FastSigns Tukwila or Provide a 4' x'4' public notice board on site within 14 days of the Department determining that a complete application has been received (see Public Notice Sign Specifications Handout, attached). 7. Payment of a $100 mailing label fee to the City of Tukwila or Provide two (2) sets of mailing labels for all property owners and tenants (residents or businesses) within 500 feet of the subject property. Note: Each unit in multiple- family buildings - -e.g. apartments, condos, trailer parks - -must be included (see Public Notice Mailing Label Handout, attached). 8. If providing own labels King County Assessor's map(s) which shows the location of each property within 500 ft. of the subject lot. From the Special Permission Checklist 3. Written description of the project, the deviation being requested and response to the applicable decision criteria. (You are requesting approval under TMC 18.45.070 B'9 a (2).) If you think that you will be able to address these items quickly I will hold off on issuing a Notice of Incomplete Application, since that will save you some time. Sandra Whiting, our Urban Environmentalist, will be reviewing the drawings for substantive issues. Nora Gierloff Planning Supervisor City of Tukwila DCD • FAX TRANSMITTAL City of Tukwila Department of Community Development Fax Number: (206) 431 -3665 e-mail: ngierloff @ci.tukwila.wa.us TO: Karen Walter DATE: 8/11/06 DEPT/TITLE: FROM: Nora Gierloff COMPANY: Muckleshoot Tribe TITLE: Planning Supervisor FAX NO: (253)931 -0752 DEPT: Community Development PHONE Total pages transmitted, including cover sheet :: RE: Riverton Creek Stream Dredging COMMENTS/MESSAGE: Hi Karen, I am sending you additional materials related to the stream dredging and wall repair at the International Corporate Campus East business park site. I will be out next week but feel free to contact Sandra Whiting in this office if you have questions about the mitigation/restoration issues. Nora IF THIS COMMUNICATION IS NOT Nora Gierloff at (206) 433 -7141 CLEARLY RECEIVED, PLEASE CALL: Dept. of Community Development - 6300 Southcenter Boulevard, Tukwila, WA 98188 - (206) 431 -3670 June 21, 2006 Ms. Nora Gierloff, Planning Director City of Tukwila 6300 Southcenter Boulevard Tukwila, WA 98188 DAVID EVANS AND ASSOCIATES INC. SUBJECT: STREAM MAINTENANCE — INTERNATIONAL CORPORATE CAMPUS EAST — SABEY CORPORATION Dear Ms. Gierloff: Please find attached the following information for the subject project: • Stream Dredging Plans and Specifications • SEPA Checklist • Type II Sensitive Areas Permit • Affidavit of Ownership and Hold Harmless Permission to Enter Property • Wall Design • Fees for City review The purpose of this application is to obtain permission to dredge a stream channel through the subject project. The steam channel has filled with sediment to the extent that it now threatens private property. A meeting was held on site on June 7, 2006 with Sandra Whiting from the City, Larry Fisher, Habitat Biologist with DFW, John Altman, Biologist with Altman Oliver Associates, Ron Lawson, Contractor, and me. Our hope is to secure a SEPA Threshold Determination no later than the end of July, as it is necessary to obtain a Hydraulic Project Approval from DFW by September 1, 2006. This is necessary to complete the work within the fish window set by DFW. The attached plans specify how the work is to be conducted and identifies areas to be replanted. We request that a final planting plan be submitted after the SEPA determination but before an actual permit for the work is authorized. Please contact me if any additional information is necessary before a DNS can be issued. Sincerely, DA D EV AND SSOCI ES, INC. 1 . (r1/ Jac N. Molver, P.E. Vi a President Copies: Christina Wold — Sabey Corporation John Altman — Altman Oliver Associates LLC PO Box 578 Carnation, WA 98014 1620 West Marine View Drive Suite 200 Everett Washington 98201 Telephone: 425.259.4099 Facsimile: 425.259.3230 PREPARED FOR SABEY CORPORATION May 30, 2006 Modular Block Wall Design and Detention Pond Expansion Intergate East Tukwila, Washington ES -0312 Earth Solutions NW, LLC 2881 —152ND Avenue Northeast Redmond, Washington 98052 Ph: 425-284-3300 Fax: 425-284-2855 Toll Free: 1- 866 - 336 -8710 May 30, 2006 ES -0312 Sabey Corporation 12201 Tukwila International Boulevard Suite 400 Tukwila, Washington 98168 Attention: Ms. Christina Wold Subject: Modular Block Wall Design and Detention Pond Expansion Intergate. East Tukwila, Washington Reference: David Evans and Associates, Inc. Stream Plan, Sheets 1 through 7 Dated May 15, 2006 Dear Ms. Wold: Earth Solutions NW«c Earth Solutions NW LLC • Geotechnical Engineering • Construction Monitoring • Environmental Sciences In accordance with your request, Earth Solutions NW (ESNW) has prepared this design for the proposed modular block wall replacement. We understand replacement of the existing ecology block along the existing stream corridor west of Building 3 is currently proposed. Repairs to the existing pavement and drive areas adjacent to the building are also proposed. Additionally, expansion of an existing detention pond south of Building 5 and removal of sediment in the existing stream channel west of Building 5 are also proposed. Proiect Background The existing ecology blocks are supported on gabion baskets that border the existing stream channel. Since the original ecology blocks were placed (late 1980's), earth pressures and localized settlement have caused rotation and subsidence of the ecology block. Replacement of the ecology block and related improvements to the subgrade (above the level of the gabion baskets), and repair of the adjacent pavement areas are proposed. Additionally, expansion of an existing detention pond that was constructed relatively recently to the south of Building 5 is proposed. The pond services an adjacent pavement area that will be expanded. The proposed site improvements will also include maintenance and the removal of sediment along the section of stream channel west of Building 5. 2881 152nd Avenue NE • Redmond, WA 98052 • (425) 284 -3300 • FAX (425) 284 -2855 • Toll Free (866) 336 -8710 Sabey Corporation May 30, 2006 ES -0312 Page 2 Geotechnical Assessment Based on our review, the proposed site improvements are feasible from a geotechnical standpoint. The attached drawing Sheet W1 provides construction notes and details related to the proposed modular block wall replacement. With respect to the detention pond expansion and sediment removal, the proposed activities are feasible from a geotechnical standpoint. The geotechnical engineer should observe the wall construction and subgrade areas following the removal of the existing ecology block. As necessary, supplement recommendations for repairing or restoring the wall subgrade areas will be provided, as appropriate. We trust this design and geotechnical assessment meet your current needs. If you have any questions, or if additional information is required, please call. Sincerely, EARTH SOLUTIONS NW, LLC Raymond A. Coglas, P.E. Principal EXPIRES 7 /7-917. i Attachments: Appendix A — Calculation Sheet Sheet W1 — Modular Block Wall Cc: David Evans and Associates, Inc. Attn. Mr. Mark Flury Earth Solutions NW, LLC Earth Solutions NW LLc CALCULATION SHEET Name: ii 4 / o G Project Number:' — c:1 t -� Project Name: - -.�_- • CITY OF TUKWILA Department of Community Development 6300 Southcenter Boulevard, Tukwila, WA 98188 Telephone: (206) 431 -3670 CITY OF TUKWILA NOTICE OF APPLICATION PROJECT INFORMATION Sabey Corporation has filed a request for permits to perform dredging, repair or replacement of existing gabion walls and enlargement of a sediment pond for a segment of Riverton Creek. Stream restoration is proposed as mitigation for the effects of this work. The section of Creek affected is between Highway 99/Tukwila International Boulevard and the International Corporate Campus East development, see reverse for a map. Permits applied for include: L06 -044 Sensitive Area Special Permission - Director Other known required permits include: Hydraulic Project Approval from Washington State Department of Fish and Wildlife Studies required with the applications include: Stream Restoration Report An environmental checklist has been submitted with the studies identified above. APPLICATION AVAILABLE FOR PUBLIC REVIEW The application is available for review at the City of Tukwila, Department of Community Development (DCD), located at 6300 Southcenter Boulevard #100, Tukwila, WA 98188. OPPORTUNITY FOR PUBLIC COMMENT Your written comments on the project are requested. They must be delivered to DCD at the address above or emailed no later than 5:00 P.M., August 3, 2006. No public hearing is required for this request. 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 Nora Gierloff at (206) 431 -3670 or ngierloff @ci.tukwila.wa.us or visit our offices at 6300 Southcenter Boulevard, Suite #100, Monday through Friday, 8:30 a.m. to 5:00 p.m. SHRUBS 5TMBOL. SCIENTIFIC NAME 0— G7RNF SERICEA LONIC62A INVOU.GRATA MVUUNA AOUFOLIVM 0PHYSOCARPU5 CAPITAM 0 ROSA PISOCARPA COMMON NAME RED-05162 DOSHDO0 B LACK THNBERRY TALL OREGONSRAPE PAGFIG NO.EBARK GUFTB2E7 ROSE SPACINS CiNNTITY 512E MIN) CUTTINGS, SAPLINGS, SEEDLINGS ! GR.OUNDCOVERS STWV1L SCIENTIFIC NAME COM•ION NAME OVTER D' ALCN6 ARGITOSTAP1HL05 WA-1R51 CLRB 1 B AD AREA POFUJ Rt 15 TG10GARPA � SALIx SLOU621ANA SSI.IX LAS INID RA sALlx SITGE7CNs KiNNKIN ICK B LACK COTT0N1000 SCOLER H0LOH PACIFIC MLLOH SITKA MLLOH SEED MIX $ SFFTI .Iy MANFK.T RERS NAME 10016 505 RESRE@1 - STERILE NEAT GRASS NYBRID 3' 00 . 3. 0L, 9' OL, 5' OL. 3' OL. D ID' M. 77 ILO M. 92 13" M. 6 1D' NT. 25 UV HT. 5PAGINS CUANTITY 512E MIN) 24' 00. 12. OL. 12. 0L. 12' 0L. 2. 0L. 30 150 150 150 150 NOTES 1 GALLON 4' GUTTING 4' CUTTING 4' GUTTING 4' CUTTING 3 GNE MIN 3 CANE MIN MILL 1113.1514T 9 CANE MIN. 9 CANE MM. NOTES RESTORATION AREA B - 2500 SF TELL ROOTED I2• DIA. MN, BART: INTACT I2' DIA MN, BARK INTACT I2' DIA MN. BARK INTACT 12' DIA MN. BARK INTACT BLDG 21-05 RESTORATION AREA A - 650 SF CENTER LINE OF RIVERTON CREEK PLANT INSTALL- ATION NOTES l RANT 1TE 403 513331 • 1.3« TOM RPM IRO.I AT 111337. 1 Mt [Mel Tam 1M. 53161,« 10.5106 Or 300N011 33330.131 *105 O. 3313YLT 30013011 • 3007 0 OAB D tV1N 0. Niel 511158.STNL spSl1.r IRE' VIT1bOq m OVtpy1QMW'' NE 3 4.P 1 3303A3330 ALV VAD LVBNaBe),ueOM�Ma44 301 �5u>537JG 167 Mm 1113 3 Sum S1eJUTfT 220 TMKIBLT. NAVea AT MIST. 20 3 3335 MT MX 31004 M UlY 0/504 TIM MS Nfft 6 71106) O. 11331133 7111E3 70513335 07 AM 031307.19 31.30413333433 AT M KAA33 vI1130 FATS 3133121337 T 1. AL MAMMA Bli 5NV03e AMMO MINT A 53L Ie61R3 33733TKN AlBR TO ASST N33'0177 SOL MST PAM 1$3 CRY YA5C5l NORTH VICINITY MAP NO SCALE [Brenda Holt - RE: Wireles - Compone MEMORANDUM July 28, 2006 TO: Nora FROM: Sandra RE: Intergate East Stream Dredging, Sediment Pond Expansion, L06 -044, E06 -014 I have reviewed the Stream Restoration Report and Drawing S1.1 prepared by Altmann Oliver Associates, LLC, dated July 17, 2006. The proposed restoration plan is acceptable subject to the following changes on Drawing S1.1: 1. B &B detail. This detail should be changed to require that all of the burlap be removed and the root ball be inspected to ensure roots are healthy. Roots should be pruned as necessary to ensure there are no circling roots. - 2. Container planting detail. This detail should be modified. Instead of stating that the rootball should not be disturbed, it should state that root balls shall be examined and loosened throughout at least the outer 2 inches of root ball. Any damaged, matted, or circling roots shall be pruned prior to planting. 3. Some herbaceous plants should be incorporated into the planting plan for the restoration area next to the sediment basin. Altmann Oliver Associates, LLC AOA P(.7 Pox 578 July 17, 2006 C:1,-11;11;011, \Y;\ 9801-1 Office (A125) :.13- -I535 FIN (l25) 313-4509 Environmental Planning & Lan (lscape Architecture A0A -16738 Nora Gierloff, Manning Supervisor • City of Tukwila Department of Community Development 6300 Southcenter Boulevard, Suite #100 Tukwila, Washington 98188 Reference: International Corporate Campus East (ICCE), Riverton Creek Tukwila, WA 5ubject: Stream Restoration Report Dear Nora: The purpose of this letter is to describe the restoration and enhancement measures that will be implemented following dredging and stream channel stabilization within Riverton Creek on the International Corporate Campus East (ICCE) site. This work is necessary to prevent potential flooding and to repair /replace existing gabion and block walls within the corridor that are failing (see stream plans prepared by David Evans and Associates, Inc. — Sheets 1- 7, dated May 15, 2006). 1.0 Project Description Riverton Creek is a tributary to the Green /Duwamish River and is considered a Type 2 Stream by the City of Tukwila. Minimal impacts to the existing vegetation are anticipated from most of the dredging activities and will be avoided wherever possible. Restoration will, however, be required east of the excavated sediment on (see Restoration Area B on Sheet 51.1). In addition, enhancement plantings are also proposed just upstream from the existing-, enhancement area associated with Phase 2 (see Restoration Area A). This enhancement was recommended during a site visit on June 7, 2006 with Larry Fisher of the Washington Department of Fish and Wildlife. Nora Gierloff July 17, 2006 Page 2 Enhancement /restoration will consist of planting a variety of native tree and shrub species to:1) increase the habitat value of the riparian corridor by increasing the plant species and structural diversity, 2) provide shade, and 3) provide a visual and physical screen to the stream channel. 2.0 Construction Management Prior to commencement of any work by contractors in the restoration area, the construction limits will be staked and any existing vegetation to be saved will be clearly marked. A pre - construction meeting will be held at the Site to review and discuss all aspects of the project with the contractor. A wetland /stream consultant will supervise plan implementation during construction to ensure that specifications of the restoration plan are met. Any modifications to the design that may be necessary due to unforeseen site conditions will be jointly approved by the City of Tukwila and the consultant prior to their implementation. 3.0 Monitoring Plan The monitoring program will be conducted twice a year for a period of five years, with annual reports submitted to the City of Tukwila. 3.1 Goal, Objectives, and Performance Standards for Restoration Area The primary goal of the restoration plan is to increase the plant species and structural diversity. To meet this goal, the following objectives and performance standards have been incorporated into the design of the plan: Objective A: Increase the structural and plant species diversity within the restoration area. Performance Standard: Following every monitoring event for a period of at least five years, the restoration area will contain at least 10 native plant species. In addition, there will be 100% survival of all woody planted species throughout the restoration area at the end of the first year of planting. Following each monitoring event after the first year of planting, there will be at least an 85% survival rate of all planted tree and shrub Species or equivalent replacement of a combination of planted and re- colonized native species. Objective ': Limit the amount of invasive and exotic species within the restoration area. Performance Standard: After construction and following every monitoring event for a period of at least five years, exotic and invasive plant species will be maintained at levels below 20% total cover in all planted areas. These species include, but are not limited to, Himalayan and evergreen blackberry, reed canarygrass, purple loosestrife, Scot's broom, morning glory, Japanese knotweed, English ivy, thistle, and creeping nightshade. Nora Gierloff July 17, 2006 Page 3 3.2 Monitoring Methodology Due to the relatively small size of the restoration area, the entire site will be reviewed'and no sampling plots will be created. Photo - points will be established from which photographs will be taken throughout the monitoring period. These photographs will document general appearance and progress in plant community establishment in the restoration area. Review of the photos over time will provide a visual representation of success of the plan. 0 4.0 Maintenance Plan ° Maintenance will be conducted on a- routine, year round basis Additional maintenance needs will be identified and addressed following each twice- yearly maintenance review.) 4.1 Weed Control Routine removal and control of non - native and invasive plants (e.g., Scot's broom, reed canarygrass, Himalayan and evergreen blackberry, purple loosestrife, Japanese knotweed, English ivy, morning glory, birdsfoot- trefoil, thistle and creeping nightshade) shall be performed by manual means. No chemicals may be used within the Riverton Creek corridor. Undesirable and weedy exotic plant species shall be maintained at levels below 20% total cover at all times during the 5 -year monitoring period. Reed Canarygra55 Areas with reed canarygrass patches 3' x 3' or smaller need to be hand - grubbed. Patches) greater than 3'x 3' shall be weed- whacked and staked with cuttings. Scouler willow (5a /ix 5cou/er /ana) and black twinberry (Lonicera involucrate) cuttings shall be used in the wetter areas and Hack cottonwood (Popu /u5 trichocarpa) cuttings shall be used in drier areas. During April 1 through November 30, one - gallon plants (minimum height of 18 ") shall be used in place of cuttings. Cuttings can be purchased or gathered from approved on -site mature sources. Cuttings shall be installed at 1' O.C. spacing over the infested reed canarygrass areas and extending 2' in each direction, unless otherwise specified. Cuttings shall be 2 -year old wood, 4' length, 1/2" diameter, with all side branches removed and installed to a minimum depth of 12 inches. Himalayan and Evergreen Blackberry Control Small patches (areas <3' x 3') need to be grubbed out, large areas (>3' x 3') need to be cut down. When shoots (approx. 6" in height) appear, they should be grubbed out by hand to ensure complete removal of bulb. 4.2 General Maintenance Items Routine maintenance of planted trees shall be performed. Measures include resetting plants to proper grades and upright positions. Tall grasses shall be weeded at the base of plants to prevent engulfment. Weed control should be performed by; hand removal, Nora Gierloff July 17, 2006 Page 4 installation of weed barrier cloth with mulch rings, or selective weed- whacking. If weed - whacking is performed, great care shall be taken to prevent damage to desired native species either planted or re- colonized. 5.0 Contingency Plan All dead plants will be replaced with the same species or an approved substitute species that meets the goal of the restoration plan. Plant material shall meet the same specifications as originally - installed material. Replanting will not occur until after reason for failure has been identified (e.g., moisture regime, poor plant stock, disease, shade /sun conditions, wildlife damage, etc.). Replanting shall be completed under the direction of the wetland consultant, City of Tukwila, or the owner. 6.0 As -Built Plan Following completion of construction activities, an as -built plan for the restoration area will be provided to the City of Tukwila. The plan will identify and describe any changes in relation to the original approved plan. If you have any questions, please call me at (425)333 -4535. Sincerely, ALTMANN OLIVER ASSOCIATES, LLC John Altmann Ecologist Attachments — Drawing 51.1 dated 7/17/06 cc: Christina Wold, Sabey Corporation Jack Molver, David Evans and Associates, Inc. CITY OFTUKWILA ENVIRONMENTAL CiIECKLIST A. BACKGROUND 1. Name of proposed project, if applicable: International Corporate Campus East — Riverton Creek Maintenance 2. Name of applicant: Sabey Corporation 3. Address and phone number of applicant and contact person: Applicant: Sabey Corp. c/o Christina Wold 12201 Tukwila International Blvd. Seattle, WA 98168 (206) 281 -8700 if 4. Date checklist prepared: August 1, 2006 5. Agency requesting checklist: City of Tukwila 6. Proposed tiering or schedule (including phasing, if applicable): Work to begin September 1, 2006 lasting 30 days. 7. Do you have any plans for future additions, expansion or further activity related to or connected with this proposal? If :yes, explain. No. 8. List any environmental information you know about that has been prepared, or will be prepared, directly related to this proposal. Environmental Checklist, Stream Restoration Report by Altmann Oliver Associates, July 17, 2006. 9. Do you know whether applications are pending for overnmeatal approvals of other proposals directly affecting the property covered by your proposal? .!ryes, explain. An Hydraulic Project Approval from the Washington State Deparuiient of Fish and Wildlife is required to conduct the work. A DARPA will be submitted as soon as a threshold determination is issued by the City of Tukwila. A request for a Jurisdictional Determination was submitted to the Army Corps of Engineers on July 12, 2006. This was submitted to seek a response from the COE as to whether or not the 1 • • project will be covered as a Section 404 permitted activity. An initial response received indicates that the project is exempt. 10. List any government approvals or permits that will be needed for your proposal, if known. Threshold Determination — City of Tukwila Hydraulic Project Approval — \VDFW Possible COE coverage NW404 Grading permit — City of Tukwila 11. Give brief, complete description of your proposal, including the proposed use 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 project consists of dredging the stream channel and stabilization and repairing and /or replacing of existing gabion and block walls within a segment of the Riverton Creek corridor as it passes by the international Corporate Campus East. Water will be temporarily by- passed through the work area and the work will be completed by means of a suction dredge. The dredge will not leave the existing paved parking area to conduct the work. The suction hose has sufficient length to reach the creek. A small settlement basin is proposed to be constructed at the upstream end of the project. This is intended to allow for settlement of heavier sediments in a convenient to maintain location above an existing harrier to tish. The total length of stream to he dredged is approximately 600 feet. The average stream width is about four feet. 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 required by the agency, you are not required to duplicate traps or detailed plans submitted with any permit applications related to this checklist. The site address is 12201 Tukwila International Blvd., Seattle \VA 98168 Township 23N, Range 4E, Sections 9 &I0 TO BE COMPLETED BY THE APPLICANT R. ENVIRONMENTAL ELEMENTS 1. EARTH a. General description of the site (underline one): flat, rolling, hilly, steep slopes, mountainous. other: Slopes in the immediate vicinity of the stream corridor range from live to 40 percent slope. b. What is the steepest slope on the site (approximate percent of slope)? The steepest slope on the subject property is on the western edge approximately 40 percent- slope. 2 • • c. li'/rat general types of soils are found on the site (for example, clan sand, gravel, peat, muck)? If you know the classification of agricultural soils, specify them and note any prime ,farmland. According to the SCS Soil Survey of King County Area Washington, the site soils are Alderwood gravelly sandy loam, 2 to 8 percent slopes. This moderately well drained soil is on till plains. It is formed in glacial outwash. Available water capacity is low. Runoff is slow and the hazard of water erosion is slight. d. Are there surface indications or history of unstable soils in the immediate vicinity? If so, describe. The soil type and slopes suggest stable slope conditions. There is no evidence of unstable soils or slope failures in the immediate area. e. Describe the purpose, type, and approximate quantities of atry filling or grading proposed. Indicate source of fill. it is anticipated that approximately 300 cubic yards of dredged materials will be removed and an approximately 300 cubic yards of clean washed gravel will be imported. f Could erosion occur as a result of clearing, construction, or use? If so, generally describe. Minor grading to construct the sediment basin at the top end will expose soils, thereby creating a temporary increase in erosion potential. Dredging of material fioni the stream bed may stir up some sediment. g. About what percent of the site will be covered with impervious surfaces after project construction (for example, asphalt or buildings)? No net increase in impervious surface will result. h. Proposed measures to reduce or control erosion, or other impacts to earth, if any: Temporary drainage by -pass and erosion. control devices such as silt fences, temporary holding /siltation ponds and straw bales will be installed where necessary to the TESCP and monitored to provide protection. The stream bypass line will prevent most if not all of any stirred up sediment from passing through the segmented work areas. 2. AIR a. What types of emissions to the air would result from the proposal (i.e., dust, automobile, odors, industrial wood stroke) duri,u, construction and when the project is completed? If any, generally describe and give approximate qucnrtities if known. During construction, emissions will include- exhaust as typically results from the use of automotive and construction equipment. b. Are there any off -site sources of emissions or odors that may affect your proposal? If so, generally describe. No. 3 • • c. Proposed measures to reduce or control emissions or other impacts to air, if any: Construction will be limited to Monday through Saturday, 7 AM to 7 PM. idling equipment will be turned off to reduce total emissions. 3. WATER a. Surface: I) Is there any surface water body on or in the immediate vicinity of the site (including year - around and seasonal streams, saltwater, lakes, ponds, wetlands)? If yes, describe type and provide names. If appropriate, state what stream or river it flows into. Yes, work will be completed in Riverton Creek a tributary of the Duwamish River. 2) IVill the project require any work over, in, or adjacent to (wit/tin 200 feet) of the described waters? If yes, please describe and attach available plans. Yes, dredging and channel maintenance. In addition, a sediment settling basin is to be constructed near the top end of the project. 3) Estimate the amount of fill and dredge material that would he placed in or reproved from surface water or wetlands and indicate the area of the site that would he affected. Indicate the source of fill material. 300 cubic yards of dredge material will be removed. 4) {Vill the proposal require surface water withdrawals or diversions? Give general description, purpose, and approximate quantities if known. A segmented temporary bypass system is proposed to allow stream flows to pass through the work areas. This is to consist of a method of blocking the stream with sand bag headwalls penetrated by a twelve inch diameter temporary culvert. The work will progress in a sequential manner as the effort progresses from one end to the other. The sandbags and temporary culvert are to be removed immediately upon completion of stabilization efforts. 5) Does the proposal lie within a 100 year floodplain? If so, note location on the site plan. -No. 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. No. b. Ground: I) 1{�i1l ground water be withdrawn, or will water he discharged to ground water? Give general description, purpose, and approximate quantities if known. No. 2) Describe waste material that will he 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 4 • • number of houses to be served (if applicable), or the number of animals or humans the system(s) are expected to serve. None. c. Water Runoff (including storm water): I) Describe the source of runoff (including storm water) and method of collection and disposal, if any (including quantities, if known). iVlrere will this water flow? Will this water flow into other waters? If so, describe. Stream flow stems from a large upstream drainage basin. No change to drainage patters will occur. This maintenance project does not involve new development activities. 2) Could waste material enter ground or surface waters? If so, generally describe. No. d. Proposed measurers to reduce or control surface, ground, and runoff water impacts, if any: The dredging project is intended to reduce surface water impacts to adjacent parking and building areas from flooding. 4 PLANTS a. Underline types of vegetation found on the site: _x deciduous tree: alder, maple, aspen, other: cottonwood, vine maple _x evergreen tree: lir, cedar, pine, other: hemlock _s shrubs: Elderberry _x grass pasture _ crop or grain _x_ wet soil plants: cattail, buttercup, bulrush, skunk cabbage, other: (Note: due to the method of work by vacuum dredge, no wet soil plants should be disturbed by this activity). _x water plants: water lily, eelgrass, milfoil, other: _x other types of vegetation: natural and exotic trees, shrubs, flowers and .iroundcovers b. What kind and amount of vegetation will he removed or altered? Very little vegetation will be removed. No tracked equipment will be used for dredging. The settlement basin will be excavated by means of a small back hoe from the landward side. About 1,200 SF of area will be cleared for this effort. Due to the heavy sediment load within the stream channel, few extensive areas of water plants were observed within the work area. c. List threatened or endangered species known to he on or near the site. None known. d. Proposed landscaping, use of native plants, or other measures to preserve or enhance vegetation on the site, if any: The stream restoration plan submitted with this application prepared by Altmann Oliver Associates identifies the location, type and quantity of plants to he used to mitieate for impacts to the corridor as a result of the proposed work. The associated report outlines goals and objectives for the planting. It also provides a monitoring program and contingency plan 5 for replacement of failed plants. The perimeter of the settlement basin is to be vegetated with native plantings. Invasive species are to be removed and replanted. 5. ANIMALS a. Underline any birds and 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: small mammals (mice, shrews, gophers,) fish: bass, salmon, trout, herring, slrellfislr, other: . h. List any threatened or endangered species known to he on or near the site: Chinook salmon. c. Is the site part of a migration route? If so, explain. No portion of the site is known by either the applicant or the contact person to he a migration route. c/ proposed measurers to preserve or enhance wildlife, if any: Additional stream puffer plantings will be provided as mitigation. The dredging will help to ensure that the stream flow remains within the channel and not spill out into the parking area. 6 ENERGY AND ,VATURAL 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. N/A b. Would your project affect the potential use of solar energy by adjacent properties, If so, generally describe. No. 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: N/A 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. No. 6 • • 1) Describe special emergency services that miglht he required. None. 2) Proposed measures to reduce or control environmental health hazards, if any: N /A. h. Noise 1) What types of noise exist in the area which may affect your project (for example: traffic, equipment, operation, aircraft, other)? N /A. 2) What types and levels of noise mould be created by or associated with the project on a short - term or a long -tern basis (for example: traffic, construction, operation, other)? Indicate what hours noise would come from the site? Short - terns: Limited to Monday through Saturday 7 AM to 7 PM, sources of noise will be construction activity and related traffic. Long -term: None. 3) Proposed measures to reduce or control noise impacts, if any: Short-tern: construction activity and related traffic will be limited to Monday through Saturday 7 AM to 7 PM. Vehicles and heavy equipment will use properly maintained exhaust systems, and engines will be turned off when not in use. Long Term: None necessary. 8. LAND AND SHORELINE USE a. What is the current use of the site and adjacent properties? The site currently contains an office building. b. Has the site been used for agriculture? If so, describe. No. c. Describe any structures on the site. The site contains one. office building. d. {1�i11 any structures be demolished? If so, what? No. e. {What is the current zoning classification of the sue? The site is currently zoned Manufacturing Industrial Center / Light Industrial. 7 • • f What is the current comprehensive plum designation of the site? The site is currently designated Manufacturing Industrial Center / Light industrial. g. .If applicable, what is the current shoreline master program designation of the site? Not known. /r. Has any part of the site been classified as an "environmentally sensitive" urea? If so, specify. Riverton Creek and its environs are environmentally sensitive. i. Approximately how many people would reside or work in the completed project? NA j. Approximately how many people would the completed project displaced? N/A k. Proposed measures to avoid or reduce displacement impacts, if any: None. 1. Proposed measures to ensure the proposal is compatible with existing and projected laud uses and plans, if any? The work will be permitted by City of Tukwila, WDF«V, and COE (if required). 9. HOUSING a Approximately ivory many units would be provided, if any Indicate whether high, middle, or low- income /rousing. N/A b. Approximately how many units, if any will he eliminated? Indicate whether high, middle, or low- income /rousing. None c. Proposed measures to reduce or control /rousing impacts, if anl.: N/A 10. AESTHETICS a. !Vhat is the tallest height of any proposed structure(s), not incliidin; antennas; what is the principal exterior building material(s) proposed? N/A S • • b. Whitt views in the immediate vicinity would he altered or obstructed? No existing views will be impacted by the proposed construction. c. Proposed measures to reduce or control aesthetic impacts, if any: The method of dredging will eliminate the need to disturb site vegetation. Ares where invasive species are removed will be replanted with native species. Areas disturbed for construction of the settlement basin will be replanted with native species. 11. LIGHT AND GLARE a. iVlrat types of light or glare will the proposal produce? /What time of day would it mainly occur? None. h. Could light or glare from the finished project be a safety hazard or interfere with views? No. c. What existing off-site sources of light or glare may affect your proposal? None. c1. Proposed measures to reduce or control light and glare impacts, if any? None. 12. RECREATION a. What designated and informal recreational opportunities are in the immediate vicinity? Unknown b. Would the proposed project displace any existing recreational uses? If so, describe? No. c. Proposed measures to reduce or control impacts on recreation, including recreation opportunities to be provided by the project or applicant, if any? None. 13. HISTORIC AND CULTURAL PRESERVATION A. Are there any places or objects listed on, or proposed far, national, state, or local preservation registers known to be on or next to the site? If so, generally describe. There are no places or objects listed on, or proposed for local, state or federal preservation registers on or near this site. 9 • • b. Generally describe any landmarks or evidence of historic, archeological, scientific, or cultural importance known to be on or next to the site. To the best knowledge of the applicant and contact person, no landmarks or evidence of historic, archeological, scientific or cultural importance exist on or near the site. c. Proposed measures to reduce or control impacts, if any: None are proposed. In the event that construction activities encounter historic or cultural artifacts, construction will be halted and a qualified archeologist consulted. 14. TRANSPORTATION a. Identify public streets and highways serving the site, and describe proposed access to the existing street system. Sltow on site plans, if any. Primary access to the site will be provided from Tukwila international I3lvd. h. Is site currently served by public transit? If not, what is the approximate distance to the nearest transit slop? Not known. c. How many parking spaces would the completed project have? flow many would the project eliminate? None. 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). No. e. Will the project use (or occur in the immediate vicinity of water, rail, or air transportation? If so, generally describe. No. f How many vehicle trips per day would be generated by the completed project? If known, indicate when peak volumes would occur. None. g. Proposed measures to reduce or control transportation impacts, if any: None. 10 15. PUBLIC SERVICES a. Would the project result in an increased need for public services (for example: fire protect ion, police protection, health care, schools, other)? If so, generally describe. No. h. Proposed measures to reduce or control direct impacts on public services, if any. None. 16. UTILITIES a. Underline utilities currently available at the site: electricity, natural ,has, water, remise service, telephone, sanitary sewer, septic system, other: frberoplics. h. 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 he needed. Electricity: Seattle City Light Natural Gus: Puget Sound Energy (Water & Sewer : Val Vue Sewer & King County Water Dist. 40 Telephone: Verizon Refuse Service: Waste Management Northwest, Inc. C. SIGNVA T URE The above answers are true and complete to the best of my knowledge. I understand that the lead agency is relying o tem to crake its decision. Signet Jac D Molver, .E. ID EVANS AND ASSOCIATES, INC. Date submitted: Aueust 2 2006 A — ")RTION OF THE NW 1/4 AND THE SW 1/4, SECTION 10, T. 23 N., R. 4 E., W " GENERAL NOTES: M m.a 143 ,...ry �ons6...o«D.604401 ..ln.aunm4n.xo.,rnnm. 6 wsv4m.. 4n 4... r.s .ao�n.. sr ∎41 111-11B1 R rzn r ..wr '"1741"'"'"'"*" MY • um. 4u6 .v .mar/.>v. s.»ow •• 6-m v s„a p.• ..o so. D4 BENCHMARK: DATUM: ry AI: 0 gf 1111 .0,11.41 manc 4.R. .o woo. ..nm,n.,.111.., 0001, THE CONTRACTOR SHALL SUBMIT A STREAM BYPASS PLAN AND SCHEDULE FOR APPROVAL PRIOR TO CONSTRUCTION. VICINITY MAP DIVING BLDG 21 -05 SEE SHEET 6 J AREA OF WORK E i,SnNC 131.00 31 -03 SEE SHEET 5 SEE SHEET 4 SEE SHEET 2 SEE SHEET 3 -J D CALL FOR UTILITY LOCATES BEFORE YOU DIG 1.00042.5555 D {}{; 4 1, 15. 2056 055520.14: D14C u CHECKED: AnT510 NUMBER: : ✓,� t CLL.:AS SNOW. `.�' �JTIONAL VD RECE`: ED FDEAOSC0'0u27A El. ' /W1�5NTERNA _ DwnAC FILE: COf.ii.,U;:, DEVELOPMENT 1 I I 1 1 1 1 1 TEMPORARY SUMP SECTION 1 w A P' 'TION OF THE NW 1/4 AND THE SW 1/4, SECTION 10, T. 23 N., R. 4 E., W.M /°04400.. CONSTRUCTION NOTES 0 ot wow sou se max. nt oar. .CLE 9041 mourn" 0 nwm cum w mw[ I as mA =OR /40 MUM 0 NW 0 0000 041 .(214 O' ORCONCrz : 0 cm:.c 09WILD Mb. •e... ,10.1.3 m irf s NORTH r L ,0 n ' 0 Ly () o0 z 0 < 0u.1 (na o 0 2 C> <0 - W z 4 • N 0 EAST 41* 0 WALL TO BE R PUCEU a ACCORDANCE IE WALL RIPUCEI NI PUP* SNEEI YI PREPARED B FIRM SMUTSNS NYE PROVIDE PREI PROIECMN ON ALL DISTRO CDY REVISIONS: APP°. oaidcE- .' RECE!•J .D CALL FOR UTILITY LOCATES BEFORE YOU 010 1- 800 -424 -5555 PROVIDE PORI PROMO.. ON ALL COI. JP's PROJECT NGYRER: DASCCO28 DRAWING IRE: sxrm .No. 2 or 7 A PORTIC OF THE NW 1/4 AND THE SW 1/4, SECTION 10, T. 23 N., R. 4 E., W.M. CONSTRUCTION NOTES O ...=■11. ..0.75 akL COO.00 l005 01504 ft7.701 ® cm.° 0.0111"04 .1 _Es • A0,1 Cair. "MAMA RO. NORTH 0 10 r PRO,TE ALT 7ROIECTV4 ON NJ. 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Ai ICC FOR MOMS !co i ; i I ; ; ; 1 I, 1 . ....."‘ .. ■ . i— — s —.,- I I ams.102 KO■ I . I ; I I ! I I --Pr.. 1 I I I i I 10. STREAM SECTION 'A' SCALL 26 se I OP.6 0644•1 SOT I I STREAM SECTION 'D' I • I P °ORTION OF THE NW 1/4 AND THE SW 1/4, SECTION 10, T. 23 N., R. 4 E., "' M. son to '1r a WON= L STREAM SECTION I I eat nom ... Inn — I 1 ',PPM MOMS" NORM SOT. , "..,.. . - frZ:VG2 gra 17461 'AU Z1 Nflo 047030) ana son. I .1-• USE MOM, CVO KC". 4.-M 3 MEN Li 1 I TYPICAL STREAM SECTION 'E' 1 ! • 1 i I i i i ,.. - • • ; ; ,i- ', - • 1 , , 1 . • I ...; -,.. _... j. , ' ow ,.....le'• w 0_ (/) z 0 < 0 U.1 • —J < < Lf2 z a _ 0 < <1, <0 w STREAM SECTION 'C' REVISION. APPO. DATE, 940 15, 2004 DESIGN: • CROWN: MGM: REVISION NUMBER. ”=, ?RIMER NUYBER: • DASCOO28 ORANENC COMfLUNi Y Lc.JP1-4ENT :MEET NO. 7 7 July 18, 2006 • City of Tukwila Steven M. Mullet, Mayor Department of Community Development Steve Lancaster, Director NOTICE OF COMPLETE APPLICATION Christina Wold Sabey Corporation 12201 Tukwila International Bl. 4th Floor Tukwila, WA 98168 RE: IGE Stream Dredging L06 -044 Special Permission E06 -014 SEPA Review Dear Ms. Wold, Your application for permits to perform dredging, repair or replacement of existing gabion walls and enlargement of a sediment pond for a segment of Riverton Creek has been found to be complete on July 18, 2006 for the purposes of meeting state mandated time requirements. The next step is for you to install the notice board on the site within 14 days of the date of this letter. You received information on how to install the sign with your application packet. If you need another set of those instructions, please call me. Once you have notified me that the notice board has been installed I will post it with a laminated copy of the Notice of Application and the comment period will start. This determination of complete application does not preclude the ability of the City to require 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 complete the review process. This notice of complete application applies only to the permits identified above. It is your responsibility to apply for and obtain all necessary permits issued by other agencies. In our initial review it appears the project is subject to a Hydraulics Project Approval (HPA) from the State Department of Fish and Wildlife. If you have any questions feel free to call me at (206) 433 -7141 or email at ngierloff@ci.tukwila.wa.us. Sincerely, Nora Gierloff Planning Supervisor Q:\NOTICE\IGE_Complete.DOC 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206-431-3670 • Fax: 206 - 431 -3665 • City of Tukwila ESA Screening Checklist City of Tukwila Endangered Species Act Screening Checklist Date: V UL-`1- ?-00G, Applicant Name: Cv ?ov p Tto*N1 Street Address: 1'Z201 1 uyca,-► ►-P• I - N ()Kw, 15LJD. City, State, Zip: ?t 1 WA. ci S I b E Telephone: (200 2S1- g-1o0 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 about 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 directed 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. May 24, 2001 1 • City of Tukwila ESA Screening CheclaeCCit J(J/ Part A: Please review and answer each question carefully. Consider all phases of your project ,� 0 2,,7.06 including, but not limited to, construction, normal operation, potential emergency operation, a co. E'4Lf "�',-y; 6 ongoing and scheduled maintenance. Continue to the next question as directed for each No or Yes AOENr 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. NO - Continue to Question 2 -0 006 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 18.06, Page 18 -8). Please circle appropriate response. NO - Continue to Question 3 -0 . Orb 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. NO - Continue to Question 4 -0 digi 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. � . �� yam- ontinue 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 exempt under TMC 18.45.080A, should answer Yes. Please circle appropriate res onse. NO Continue to Question 6 -0 YES - Continue to Question 6 -0 May 24, 2001 2 • City of Tukwwa ESA Screening Checklist Part A (continued) 6 -0 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. Please circle appropriate response. (NOS 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 each 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 water mark is covered in Part C. Please circle appropriate response. - 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 project involves grading and you have not prepared a Temporary Erosion and Sedimentation 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. NO - Continue to Question 1 -3 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 ropriate response. - Continue to Question 2 -0 (Page 2) YES - Continue to Question 1-4 May 24, 2001 3 City of Tukwila ESA Screening Checklist Part B (continued) 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, answer Yes to this question. Please circle appropriate response. NO Continue to Question 2 -0 (Page 2) YES - 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 TMC 18.06.845 as any self - supporting woody plant, characterized by one main trunk, with a potential diameter - breast - height of 2 inches or more and potential minimum height of 10 feet. Please circle appropriate response. NO ) ontinue to Question 2-4 YES - Continue to Question 2 -3 2 -3 Will the project involve clearing of any evergreen trees from within 200 feet of the ordinary high water mark of a watercourse or the Green/Duwamish or Black Rivers? For the purpose of this analysis evergreen means any tree that does not regularly lose all its leaves or needles in the fall. Please circle appropriate response. NO 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) S> 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. NO - Continue to Question 3 -0 (Page 2) ES Continue to Question 3 -0 (Page 2) May 24, 2001 4 • City of Tukwila ESA Screening Checklist Part D: Please review each question below for projects that include work below the ordinary high water mark of watercourses or the Duwamish /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 wetted -width of a stream. This includes both temporary and permanent modifications. Please circle appropriate response. N - 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 alterations 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 should answer Yes to this question. Please circle appropriate response. NO - 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 salmonids, including both juveniles and adults. Please circle appropriate response. NO i 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. NO - 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 watercourse or the 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 should answer Yes to this question. Please circle appropriate response. NO - Continue to Question 3 -6 CPontinue to Question 3 -6 May 24, 2001 5 • City of Tukwi a ESA Screening Checklist Part D (continued) 3 -6 Will the project result in impacts to watercourses or wetlands that have a surface connection to another watercourse or the Green/Duwamish 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 connection 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. Please circle appropriate response. ontinue 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, particularly waterfowl. Please circle appropriate response. NO - 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 stabilization includes, but is not limited to, rip -rap, rock, log, soil, or vegetated revetments, concrete structures, or similar structures. Please circle appropriate response. NO - Continue to Question 4 -0 (Page 2) ontinue to Question 4 -0 (Page 2) ' May 24, 2001 6 ID City of Tuk7 ESA Screening Checklist Evaluation Form (City Use) The following questions and evaluation matrix are intended to provide threshold information for your project or action that is specific to the location of the project or action relative to salmonid - bearing watercourses or rivers in the City of Tukwila. If you answered Yes to any questions on the screening checklist, please answer the following questions. ADDITIONAL INFORMATION Will the project or action occur in the drainage basin for Gilliam Creek, Southgate Creek, Pal Creek, or Riverton Creek? (circle answer) Yes Continue to A 1. No Continue to A2. Al. Is your project or action in that portion of the drainage basins upstream of the general salmonid range of these watercourses as shown on the City's outfall map? (circle answer) Yes Check Path A Below. No Check Path B Above. A2. Will the project or action drain or outfall directly to the Duwamish/ Green River or Black River without first draining to a separate watercourse? (circle answer) Yes Check Path C Below. No Continue to A -3. A3. You have indicated that the project or action is located in a drainage basin containing a watercourse that does not support salmonid fish use. Do you have specific knowledge that indicates that salmonid fish -use occurs in this watercourse? (circle answer) Yes Check Path B Below. No . Check Path A Below. =PathB' Path,. Once you have checked the appropriate box, proceed to the evaluation matrix on the following page. May 24, 2001 7 • City of Tukwi a ESA Screening Checklist EVALUATION MATRIX The following matrix evaluates the project or action's potential for take based on all of your answers to the questions in the screening checklist. The matrix is organized using the same question levels as the screening checklist. Based on the box you checked at the end of the preceding page, follow the appropriate path across the matrix (Path A, B, or C), circling or shading the appropriate box for each question. Numbers provided in parentheses () refer to the rationale for the determination of "no- take" or "take ". Refer to the Rationale section, below, for an explanation. Section 1 This question on the screening checklist addresses the discharge of stormwater to another basin. Fish presence at the site in the receiving basin should be evaluated. Section 2 Evaluation Matrix Questions and Answers From Screening Checklist Path 1 -1 Yes 1 -2 Yes Path A No take indicated (1) Take of coho, cutthroat, and chinook is indicated (3) Path B Take of coho and cutthroat is indicated (2) Take of coho, cutthroat, and chinook is indicated (2)(3) Path C Take of coho, cutthroat, and chinook is indicated (2) Take of coho, cutthroat, and chinook is indicated (2)(3) This question on the screening checklist addresses the discharge of stormwater to another basin. Fish presence at the site in the receiving basin should be evaluated. Section 2 Evaluation Matrix Section 3 Evaluation Matrix May 24, 2001 8 Questions and Answers from Screening Checklist Path 2 -3 Yes 2-4 Yes 2 -5 Yes Path A No Take indicated (1)(4) No Take indicated (1)(4) Take of coho, cutthroat, and chinook is indicated (2)(3) Path B Take of coho and cutthroat is indicated (2)(3) Take of coho and cutthroat is indicated (2)(3) Take of coho, cutthroat, and chinook is indicated (2)(3) Path C Take of coho, cutthroat, and chinook is indicated (2) Take of coho, cutthroat, and chinook is indicated (2) Take of coho, cutthroat, and chinook is indicated (2)(3) Section 3 Evaluation Matrix May 24, 2001 8 i City of Tukwila ESA Screening Checklist Section 3 Evaluation Matrix Cont. Questions and Answers from Screening Checklist Path 3 -1 Yes 3 -2 Yes 3 -3 Yes 3 -4 Yes Path A No take indicated (1) N/A No take indicated (1) No take indicated (1) Path B Take of coho and cutthroat is indicated (2)(3) N/A Take of coho and cutthroat is indicated (2) Take of coho and cutthroat is indicated (2)(3) Path C Take of coho, cutthroat, and chinook is indicated (2)(3) Take of coho, cutthroat, and chinook is indicated (2)(3) Take of coho, cutthroat, and chinook is indicated (2) Take of coho, cutthroat, and chinook is indicated (2)(3) Section 3 Evaluation Matrix Cont. Section 4 Evaluation Matrix Question and Answer from Screening Checklist Path 4 -0 Yes Paths A, B or C Take of coho, cutthroat, and chinook is indicated (3) May 24, 2001 9 Questions and Answers from Screening Checklist Path 3 -5 Yes 3 -6 Yes 3 -7 Yes 3 -8 Yes Path A No take indicated (1)(4) Take of coho and cutthroat is indicated (3) No take indicated (1)(4) No take indicated (1)(4) Path B Take of coho and cutthroat is indicated (2)(3) Take of coho and cutthroat is indicated (2)(3) Take of coho and cutthroat is indicated (2)(3) Take of coho and cutthroat is indicated (2)(3) Path C Take of coho, cutthroat, and chinook is indicated (2)(3) No take indicated (1)(4) Take of coho, cutthroat, and chinook is indicated (2)(3) Take of coho, cutthroat, and chinook is indicated (2)(3) Section 4 Evaluation Matrix Question and Answer from Screening Checklist Path 4 -0 Yes Paths A, B or C Take of coho, cutthroat, and chinook is indicated (3) May 24, 2001 9 City of Tukwila ESA Screening Checklist Section 5 Evaluation Matrix Question and Answer from Screening Checklist Path 5 -0 Yes Paths A, B or C Take of coho and cutthroat is indicated (3) Section 6 Evaluation Matrix Question and Answer from Screening Checklist Path 6 -0 Yes Paths A, B or C Take of coho, cutthroat, and chinook is indicated (3) Rationale 1 - No salmonid use occurs within areas directly affected by the project. This action is not anticipated to have a direct effect on salmonids and is not anticipated to result in take as a result of direct affects. (Note: Indirect impacts are evaluated separately.) 2 - Habitats in these watercourses or rivers are either directly used by salmonids or support pathway- indicator relationships that are critical for salmonids. Actions effecting these habitats may result in the take of a salmonid. 3 All projects in the City ultimately drain to salmonid- bearing waters. The results of these actions may result in significant secondary alteration to receiving waters that may support salmonid use. Significant secondary effect to these areas may result in the take of salmonids using habitats in these areas. 4 All projects in the City ultimately drain to salmonid- bearing waters. The results of these actions are not anticipated to result in a significant change in the receiving bodies or they may result in a change but are not anticipated to result in an affect to salmonids or a critical habitat element. May 24, 2001 10 • SIH*I4H C(X.Ir ENVIRONMENTAL CHECKLIST A. BACKGROUND 1. Name of proposed project, if applicable: International Corporate Campus East — Stream Maintenance 2. Name of applicant: Sabey Corporation 3. Address and phone number of applicant and contact person: Applicant: Sabey Corp. c/o Christina Wold 12201 Tukwila International Blvd. Seattle, WA 98168 (206) 281 -8700 4. Date checklist prepared: May 23, 2006 5. Agency requesting checklist: City of Tukwila 6. Proposed timing or schedule (including phasing, if applicable): Work to begin July 1st lasting 30 days. 7. Do you have any plans for future additions, expansion or further activity related to or connected with this proposal? If yes, explain. No. 8. List any environmental information you know about that has been prepared, or will be prepared, directly related to this proposal. Environmental Checklist 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. No other applications are pending on the subject property. 10. List any government approvals or permits that will be needed for your proposal, if known. Building permits for wall construction Grading & drainage plan approval 1 • 11. Give brief, complete description of your proposal, including the proposed use 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 project consists of dredging, stream channel stabilization and repairing and/or replacing existing gabion and block walls within the stream corridor. The stream will be temporarily by- passed and the work will be completed with a tracked excavator. 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 required by the agency, you are not required to duplicate maps or detailed plans submitted with any permit applications related to this checklist. The site address is 12201 Tukwila International Blvd., Seattle WA 98168 Township 23N, Range 4E, Sections 9 &10 TO BE COMPLETED BY THE APPLICANT B. ENVIRONMENTAL ELEMENTS 1. EARTH a. General description of the site (underline one): flat, rolling, hilly, steep slopes, mountainous, other: Slopes on the site range from zero to five- percent slope. b. What is the steepest slope on the site (approximate percent of slope)? The steepest slope on the subject property is on the western edge approximately 40 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. According to the SCS Soil Survey of King County Area Washington, the site soils are Alderwood gravelly sandy loam, 2 to 8 percent slopes. This moderately well drained soil is on till plains. It is formed in glacial outwash. Available water capacity is low. Runoff is slow and the hazard of water erosion is slight. d. Are there surface indications or history of unstable soils in the immediate vicinity? If so, describe. The soil type and slopes suggest stable slope conditions. There is no evidence of unstable soils or slope failures in the immediate area. 2 • • e. Describe the purpose, type, and approximate quantities of any filling or grading proposed. Indicate source of fill. It is anticipated that approximately 200 cubic yards of dredged materials will be removed and an approximately 200 cubic yards of clean washed gravel will be imported. f. Could erosion occur as a result of clearing, construction, or use? If so, generally describe. g. Site filling and grading will expose soils, thereby creating a temporary increase in erosion potential. A temporary erosion and sedimentation control plan (TESCP) will be prepared and necessary controls will be installed prior to any grading activity on the proposed project site in accordance with City of Tukwila requirements. Depending on specific site and construction conditions, typical temporary measures employed during construction could include placement of straw bale barriers across drainage channels, placement of riprap and use of silt fences and siltation/detention ponds to control runoff. About what percent of the site will be covered with impervious surfaces after project construction (for example, asphalt or buildings)? No net increase in impervious surface will result. h. Proposed measures to reduce or control erosion, or other impacts to earth, if any: Temporary drainage by -pass and erosion control devices such as silt fences, temporary holding/siltation ponds and straw bales will be installed where necessary to the TESCP and monitored to provide protection. 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. During construction, emissions will include those typically resulting from the use of automotive and construction equipment. Odors from construction materials will be present during construction and dust and smoke may be generated during short term grading activities. b. Are there any off -site sources of emissions or odors that may affect your proposal? If so, generally describe. Vehicle emissions from traffic on adjacent streets,. c. Proposed measures to reduce or control emissions or other impacts to air, if any: Construction will be limited to Monday through Saturday, 7 AM to 7 PM. Watering of cleared areas will be performed when necessary to control dust. Idling equipment will be turned off to reduce total emissions. 3. WATER a. Surface: 3 • • 1) Is there any surface water body on or in the immediate vicinity of the site (including year - around and seasonal streams, saltwater, lakes, ponds, wetlands)? If yes, describe type and provide names. If appropriate, state what stream or river it flows into. Yes, work will be completed in Riverton Creek a tributary of the Duwamish River. 2) Will the project require any work over, in, or adjacent to (within 200 feet) of the described waters? If yes, please describe and attach available plans. Yes, dredging and channel maintenance. 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. 200 cubic yards of dredge material will be removed and 200 cubic yards of clean, washed gravel material will be imported. 4) Will the proposal require surface water withdrawals or diversions? Give general description, purpose, and approximate quantities if known. A temporary diversion of Riverton Creek will be required to complete the work. 5) Does the proposal lie within a 100 year floodplain? If so, note location on the site plan. Yes. 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. The project does not involve any discharge of waste materials. 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. No ground water will be withdrawn as part of the project. No discharge from the project will be made to ground water. 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. In concert with concerned agencies, a program of contractor education and spill contingency and response plan compliance will be instituted to reduce the potential for discharge of waste materials to the construction activities. c. Water Runoff (including storm water): 4 • • 1) Describe the source of runoff (including storm water) and method of collection and disposal, if any (including quantities, if known). Where will this water flow? Will this water flow into other waters? if so, describe. The principal source of runoff will be rainwater from impervious surfaces such as roofs, driveways, parking areas and other paved areas. Stormwater from pavement and building areas is or will be collected and treated with mechanical oil/water separation in restrictor catch basins and combined with stormwater from roofs and other impermeable surfaces. 2) Could waste material enter ground or surface waters? If so, generally describe. Typical components of stormwater from pavement areas are petrochemicals and the products of internal combustion engines. Stormwater runoff from the instant proposal's impervious surfaces will be collected and treated with oil/water separation and biofiltration in the dentention facility. d. Proposed measurers to reduce or control surface, ground, and runoff water impacts, if any: During construction, temporary measures will be employed to control runoff and water quality, including use of silt fences, straw bales across drainageways, placement of riprap and quality, including use of silt fences, straw bales across drainageways, placement of riprap and construction of temporary siltation/holding ponds. The limits of clearing and grading will be posted prior to any site disturbance. 4 PLANTS a. Underline types of vegetation found on the site: _x deciduous tree: alder, maple, aspen, other: _x evergreen tree: rr cedar, pine, other: _x shrubs _x grass _ pasture crop or grain wet soil plants: cattail, buttercup, bulrush, skunk cabbage, other: _ water plants: water lily, eelgrass, milfoil, other: _x other types of vegetation: natural and exotic trees, shrubs, /lowers and Rroundcovers b. What kind and amount of vegetation will be removed or altered? Removal of plant material within the dredging area will occur. c. List threatened or endangered species known to be on or near the site. No threatened or endangered plant species are known to exist on or in the vicinity of the site. d. Proposed landscaping, use of native plants, or other measures to preserve or enhance vegetation on the site, if any: NA 5. ANIMALS a. Underline any birds and animals which have been observed on or near the site or are known to be on or near the site: 5 • • birds: hawk, heron, eagle, songbirds, other: mammals: deer, bear, elk, beaver, other: small mammals (mice, shrews, gophers,) fish: bass, salmon, trout, herring, shellfish, other: b. List any threatened or endangered species known to be on or near the site: No threatened or endangered animal species are known to exist on or in the vicinity of the site. c. Is the site part of a migration route? If so, explain. No portion of the site is known by either the applicant or the contact person to be a migration route. d. proposed measurers to preserve or enhance wildlife, if any: None. 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. NA b. Would your project affect the potential use of solar energy by adjacent properties, If so, generally describe. No. 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: NA 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. No. I) Describe special emergency services that might be required. Standard police, fire and medical emergency services in the event of accident, fire or unusual emergency event. 2) Proposed measures to reduce or control environmental health hazards, if any: Meet all fire and building code provisions for fire and life safety. • • b. Noise 1) What types of noise exist in the area which may affect your project (for example: traffic, equipment, operation, aircraft, other)? Traffic from abutting Tukwila Blvd. will provide the principal sources of noise. 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? Short-term: Limited to Monday through Saturday 7 AM to 7 PM, sources of noise will be construction activity and related traffic. Long -term: None. 3) Proposed measures to reduce or control noise impacts, if any: Short-term: construction activity and related traffic will be limited to Monday through Saturday 7 AM to 7 PM. Vehicles and heavy equipment will use properly maintained exhaust systems, and engines will be turned off when not in use. Long Term: None necessary. 8. LAND AND SHORELINE USE a. What is the current use of the site and adjacent properties? The site currently contains an office building. b. Has the site been used for agriculture? If so, describe. No. c. Describe any structures on the site. The site contains one office building. d. Will any structures be demolished? If so, what? No. e. What is the current zoning classification of the site? The site is currently zoned Manufacturing Industrial Center / Light Industrial. f What is the current comprehensive plan designation of the site? The site is currently designated Manufacturing Industrial Center / Light Industrial. g. If applicable, what is the current shoreline master program designation of the site? NA 7 • • h. Has any part of the site been classified as an "environmentally sensitive" area? If so, specify. No. t. Approximately how many people would reside or work in the completed project? NA j. Approximately how many people would the completed project displaced? NA k. Proposed measures to avoid or reduce displacement impacts, if any: None. I. Proposed measures to ensure the proposal is compatible with existing and projected land uses and plans, if any? Development will be consistent with City of Tukwila codes and ordinances. 9. HOUSING a Approximately how many units would be provided, if any? Indicate whether high, middle, or low- income housing. NA b. Approximately how many units, if any will be eliminated? Indicate whether high, middle, or low- income housing. None c. Proposed measures to reduce or control housing impacts, if any: NA 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? NA b. What views in the immediate vicinity would be altered or obstructed? No existing views will be impacted by the proposed construction. c. Proposed measures to reduce or control aesthetic impacts, if any: Conformance to all City of Tukwila Codes and ordinances. 8 • • 11. LIGHT AND GLARE a. What types of light or glare will the proposal produce? What time of day would it mainly occur? None. b. Could light or glare from the finished project be a safety hazard or interfere with views? No. c. What existing off -site sources of light or glare may affect your proposal? None. d. Proposed measures to reduce or control light and glare impacts, if any? None. 12. RECREATION a. What designated and informal recreational opportunities are in the immediate vicinity? Unknown b. Would the proposed project displace any existing recreational uses? If so, describe? No. c. Proposed measures to reduce or control impacts on recreation, including recreation opportunities to be provided by the project or applicant, if any? None. 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. There are no places or objects listed on, or proposed for local, state or federal preservation registers on or near this site. b. Generally describe any landmarks or evidence of historic, archeological, scientific, or cultural importance known to be on or next to the site. To the best knowledge of the applicant and contact person, no landmarks or evidence of historic, archeological, scientific or cultural importance exist on or near the site. c. Proposed measures to reduce or control impacts, if any: None are proposed. In the event that construction activities encounter historic or cultural artifacts, construction will be halted and a qualified archeologist consulted. 9 • • 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. Primary access to the site will be provided from Tukwila International Blvd. b. Is site currently served by public transit? If not, what is the approximate distance to the nearest transit stop? Unknown. c. How many parking spaces would the completed project have? How many would the project eliminate? None. 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). No. e. Will the project use (or occur in the immediate vicinity of) water, rail, or air transportation? If so, generally describe. No. f How many vehicle trips per day would be generated by the completed project? If known, indicate when peak volumes would occur. None. g. Proposed measures to reduce or control transportation impacts, if any: None. 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. No. b. Proposed measures to reduce.or control direct impacts on public services, if any. Payment of required impact fees and compliance with fire and building codes as well as ongoing payment of new property and sales taxes to support these services. 16. UTILITIES 10 • • a. Underline utilities currently available at the site: electricity, natural Ras, water, refuse service, telephone, sanitary sewer, septic system, other: fiberoptics. 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. Electricity: Seattle City Light Natural Gas: Puget Sound Energy Water & Sewer : Val Vue Sewer & King County Water Dist. 40 Telephone: Verizon Refuse Service: Waste Management Northwest, Inc. C. SIGNATURE The above answers are true and complete to the best of my knowledge. I understand that the lead agen , is relying on them to make its decision. Signatu Date submi ed: 69. . 3O 7 11 Pavement Block Unile 2.5M 56' III - 11111 Temporary EscavePan tutwitive • Free ()raining. • Crushed Rock 4' °remoter Rigid Perforated Orlin pipe. Surround with Drain Rork Conned to Appropriate Drainage . Edam Cation Baskets Le•tl Ted Surface As Necessary - (GedeCwdal Enpkwerto Inspect Prior to Construction) • BLOCK WALL REPLAC DETAIL NOT -TO -SCALE MENT NOTES: 1. - New wall alignment to follow approximate alignment of existing wall and plan prepared by David Evans and Associatas. • • -. 2. Following removal of existing ecology biotic, geotechnical engineer to observe :. • subgrade and condition of existing gabion baskets. As necessary, recommendations . for repaving subgrade areas win be provided prior to new blodc replacement.,. 3.. • Gushed Rock Leveling to consist of 5/8th inch to-1.1/4 inch Crushed Rock'. • 4. Free Draining Sadfflt l to consist of granular 'c the 5 percent fines. • 5. Light compaction equipment to be used behind new blodc units. Compact to 95 percent relative compaction (ASTM D-698). 5.0' . TOP VIEW Fire Lane ZS 1 • • 25' 5.Q SIDE VIEW E+ q Ecubgy Btedr ass 1 (To Be Ren Dyed) • . 1 Extstrrg aa>rab Oebbe Stream APPROXIMATE. EXISTING CONDITION NOT -TO -SCALE i Replace / Repair - • Fire Lane Pavement Proposed Block Mks 2512.516 Existing Galion Baskets • .Repair / Relined As Necessary BLOCK UNIT DETAIL NOT -TO -SCALE Stream. PROPOSED, MODULAR BLOCK REPLACEMENT NOT -TO- SCALE: z Z w wV)o g uj w. W = —J < a� g w Et z W w ~H Z 0 A 0 9 O Bisset No. PLANT SCHEDULE SGII5MFIC NAME GuANTiTY SIZE MIND NOTES VINE MARE BIG -LEAF MAPLE OREGON ASH DOUGLAS FIR WESTERN RED CEDAR A5 SHOWN AS SHOWN AS SHOWN AS SHO 1 AS SHOWN 5' NT. 6' HT. 8' HT. 5' HT. 5' HT. / /tie / / / / / / /// MULTI -STEM, 3 MIN M®-L- BRANGFN® WB1- EV-MOE° B Y B, FILL Y BUSHY B t B, RILL Y E7.EK1' SHRUBS STMBOL SCIENTIFIC NAME 0- CORPUS SER10EA LONKSiA INVOLUCRATA 0 MAHOPA At8U1FOLIUM o- A4CSOCARFUS CAPITATUS 0 ROSA PI50CARPA RED - OSIER DOGWOOD BLACK TWINBE2RY TALL ORE5ONGRAPE PACIFIC NINEBARK CAUSTBRE D ROSE GUITIN65, SAPLIN65, SEEDLIN65 d •ROUNDGOVER5 STMPV>f SCIENTIFIC NAME COMMON NAME OUTER 8' ALONG G4.RB ADJ. AREA E- ARCHTOSTAPHYLOS WA-1R51 KINNIKINWCK POPLLUS TR1G6fOCARPA BLACK COTTONWOOD L SALIX SCOU-ERIANA SCOULER WILLOW SALIX LASIANDRA PACIFIC WILLOW SALIX SITC4EN515 SITKA WILLOW 5EED MIX 5115 CFI.") 0/rvrn MA .FACT1RE R5 NAME 100% 50* RE6REBN - STERILE W1FAT BRASS HYBRID 3' O.G. 3' O.G. 3' O.G. 5' O.G. 3' O.G. SPAGINB 24' O.G. 12' 0L. IT 0.C. 12' OL. 12' 0L. QUANTITY SIZE MIN) e 21 32 6 26 GAJANTTY 30 150 150 150 I50 18' HT. 18' M. 18• HT. 18' HT. 18' HT. SIZE (MIN) 16ALLON 4' CURING 4' WRNS 4' GUTTINO 4' CUTTING NOTES 3 CANE MIN. 3 CANE MIN. RLL 11 BUSHY 3 CANE MIN. 3 GIVE MIN. RESTORATION AREA B - 2500 SF NOTES WELL ROOTED 1/2' DIA MIN, BARK INTACT 1/2' DIA MIN, BARK INTACT I/2' DIA MIN, BARK INTACT I/2' DIA MIN, BARK INTACT BLDG 21-05 RESTORATION AREA A - 650 SF ORINARY- HIGH- WATER- LINE OF RIVERTON GREEK GENTER LINE OF RIVERTON GREEK BLDG 21-03 50 60 90 120 50 RBNOVE ALL INVASIVE RAMS AND INCORPORATE 6' OF IMPORTED OR STOCKRLED TOFSON. INTO TIE TOP 6' OF NATIVE SOIL PRIOR TO INSTALLATION OF PO NTINES. @EVERGREEN 545 TREE DETAIL (typ.) SET TREE STRN6/R NO PLACE 500186&L CM SOLD OWED CR ON COMPACTED !MCKEE- PLANTES HOLE 1/2 FULL MITT NATIVE SOIL, TAM, SOLL TO STA611JZE ROO18AL. REMOVE WM WRINS, AID LSR.AP. DO NOT DISTURB ROOTBALL A1450 B/CIWLL A5 POI® N THE S'EGPICATCNS 250' NISLOCKIAR STAKE IDE LOCATED OUTS Or RPOIBALL FASTEN H/14 BNUBE BALV. PYRE AND V2• 6104 VNYL 105110. STAKE MITT W E)VOSED WIRE ENDS. IEMER STAKE OR MIRE MAY TOUCH MEE TRUNK. STAKE NEWT WET F AT LEAST S' FR06A FIN51® BRACE. PLACE S• oP BARK MULCH Di SAUCER TO KIM 3' OP TIE TREK RISEVE CONTADER OR ERAP FROM ROOTBALL AID DEFECT TO 516155 ROOTS APE IEALTHK. 11007 PRUE, *8 /ECO5Y6., TO BEES CIRGUNB DOES WI-OCCUR. N HYOWE ®ED /55/6. EXCAVATE 14121" AREA LARGE EWEN TO MAW TREE 00 N07 REPLKE TD'P AFTER PLVAR64B. FORM HATER DAM /55.0 TWEE MOLD MITT SOIL TO HATE[ FINISH BRACE Ir ?II -II _II= 11-II =II =II= i =II =II:= 11:I�:11: 11.=1_L :11.=1LIibi ROOT BALL DAFeIBt EXCAVATE NOLE S TIKES moot THAN ROOIBA1L SCARIFY SIDES O' PLANTING HOLE MAKE SIRE HOLE 1106 B00[' DRNIPEE EA5Tt10 NATIVE 500. OR HELY RACED TOPSOIL. PLANT INSTALL- ATION NOTES 1. FLA*R 155 OCR 9114/3 WI MEE R THAN DEPTH GROW AT NNW. 2 FOR CONTAINER 1162ES D OR 51RES SCORE AMR SEES OP ROOBALL PRIOR TO PLN4TES LVTIHSLY ROO16A1 P ROOT GR LIN0 IS S. AMER PL.ANTES, STAKE WEBS OILY P NECESSARY honing or troops) OR N EXPOSED AREAS 4. TREE STAKES TO Be VERTICAL. PARALLEL EVSFTOPPEO WY.AIKEV AND GREEN PI TO UDISTRB® SIBBRACE ROVE AFTER Re TEAL 5. HATER r, WEIXATELY 201510 NO THDROUBILY, HEAVIER AT FIRST, 2 or S T6ES PER IFBC TNRO64 TIE CRY SASGt DEN LIES UNTIL BTABI9ED. 0. FERTILIZE ALL TREES NO SIRES 1014 AN APPROYF 9.CM RELEASE 110*61 R APRLD AT MANFAGTU>St996BEB /1 RATES 7. ALL RANEE FITS 1041 4 N80 ®MN A SOIL NOWISE MENTION ARENT TO ASSET N ELLS TIE SOL WET URNS THE SRC SEASON. ®CONTAINER SHRUB PLANTING DETAIL (tup.) NOTE SEE PLAHft1S SPECIFICATIONS PER MLCH AND F6CTLIZER DFOR4ATION ROOTBVLLS BNALL Be CORDED NO LOOMED TeROUBHCOT T6E 0015 2' OF he ROOT MASS PRIOR TO INSTALLATION ANY ['AMAZED, MATTED OR CIRCLING ROOTS SHALL E? P107ED *R10R TO MLLE 5• DLL 24• DIA RI110 LEN1LY GOPAGT SOIL * 0.00 50019 ARD PLOW HATER TO SETTLE. DO NOT LP.,kvE NR PLANT AT SNe GRADE AS SHRUB HAS MOW. N M'DROSEED® AREAS, EXCAVATE TURF AREA TO PLANT 5110.5. DO NOT NL3'IAG6 TITS. FINISHED BRACE EXCAVATED 141E MGT EE 6 DEEPER 111A11 COI4TADER DEPTH Aso 2 1015 4'* DIAN CONTADE R 0* 0 5RT ®M GOFG5T TES Tpechdbe). FOR 51565 PLANER° ON SLOPES. INSTALL PLANT IPRI614T ON LEVEL SOIL TO ASSURE COVER OF ROOFS O4 DOME/ SCE OF PLANT. SCARIFY SIDES O' PLARTINO PIT P BLAZED. COMPACT 50LL UNDER ROOT MAW EXi5T040 9P6RAOE NATIVE SOt.. OGUTTING PLANTING DETAIL (tup.) NOTES I. 0)115165 SAIL Le A05150 *5 NOTED. OT1909 le AT LEAST VIA DIA 2. NO 4' Deb) � 04 N went 0.9711105 MGT BE 3. 44111 905 BkM0B CLEARLY Y RE O BARC WTAOT. 0.I1711E9 SHALL DE F 1/410 re B 24 5 SCUD E N0. 1+0WTT1305 CREA00 CIENLYcur 4. AT AN MOLE FOR EASY DEMON INTO TIE 501_ TIE Tarp SNOLLD BE Off SEAM OR 8BUNT. MEMO OT7005 MGT 0 FRESH AM 123'T S. MOIST AFTER WGWAL E tiler 91 0.0 BE AYP0 AND WALLED THE she DAY. DP BORON Q OIrtRI N RAP RO1D01OWt2E PROP TO NSBt1 10N 6.7T63TIESOIL \� /7 I6EA AT LEA$BAROt MA AN 'r- %`L\,..I /� LEEA24lL..ST V101A/6R PILOT HON AANNi/5 OT195. N OBOE OR CRAWLY 50L9 wan SPIKE TO AIOU CP W. LEST come NO TAW 506 NOM BASE YGBTT O51Nt9 HA AL1( - NTO PLOT 151E TO A DEPTH '�„P !IL�11 AT LEAST W. LEAVE A L =.I -II ABOVE GROW 9LPAOE II" 'II TOM.L00l MR 5GCE9lL :If. WS:OITDO OP LEAVES. GENERAL NOTES 1. BASE ItFORMAT10N PROVIDED BY DAVID EVA6L5 AW A100'.IATES EVE RETT, RNA - 425.259.4044. SEE DEA FLANS 1-1 DATED 545/2006 *01 IW9RMATION ON STREAM DR®64175. ERADN6, EiOSSION CONTROL AID STABILIZATION MEA54RE5. 2. THIS PLAN PERTAINS TO RANT RESTORATION OF GRADED AREA RE TO SEDIMENT RB40JAL OF TIE STREAM AW BLAR6E'®IT OF TIE UPPER 5167IMBNT POW. 3. IN* RAN I5 AN ATTACHMENT TO TIE RESTORATION REPORT PREPARED BY AOA DATED 1/11/06. RB$2 TO 71E REPORT FOR INFORMATION RELATED TO PERFORMANCE MAINTENANCE NV IY5NITORINS AFTER CONSTRUCTION 15 COMPLETE. 4. SEE SPECIFICATIONS BELOW FOR GCt6TRLGT1ON 5EGiUB1149 AND .4001110101 IWORMATION RELATED TO RAN II4'LBBITATlON SPEC I F CATIONS PART 1 - PRE- A.MT1N9 SFECRICAT1Ot6 IJ SEE10IA1 SITE CONDITIONS 10100474.5 Ccrb6Ctor shall gve AOA a mN,un of ten (10) hap rota. prior fa Weds. to proceed with c0ewctbn Cad ruction most he performed n aaorda6e lath the City of Tukwila standards, cache, penal war mare, and other q ppllcml0 ommbahces and policies. The rpplhod b responds for obmr►ng ay other related or .egoist permits prior to to .1 ee5an. 4 of aCt site • .Arrow cons n plans, and penults, E main on 707 *45 project be m completion. A .55Nbd wetland cae0tart shall Pro on .Re. m necessary to manta- coretnctan ad rpprwe mini revbaro to ens plat. 12 (1.EARINB, 6RIESIN6. TOPSOIL PLA CEFEIC 4 SOL STABILIZATION Clear ad gnb all Moshe. reenoUve plat material from both paring areas prior to retalatlm of plartrqs. Upon cmpietan of teorrg n Area A ad cleorhg and gang n Area B. 0• of hpated or stoctpled argsnb topsoil shall be placed ad Nbd Eta the Waal to a dpepth d et least 6• D2• total depth /. Ulan reccmata .d t4od topsoil tdf5rdbn neosaes, t necess°Y btatatan of to plating,. N ro additional geotedri t reeaanendatlwe are the geo.engreer shall provide .63.15* d soil p for to H.talldlan d p . 13 5®518 Altar pace1t. and pia- to eeedtg, the L.adlupe Contractor shall water tlwa,H44 all exposed sots. lytoseed all cleared anew with seed ma specified in the Plaid SOedte. Seed cleated areas agar folbag part Mtallalat PART 2 - KANDE SSPEGIRCAT1016 2J PLANTES SQ®LLE Plating shwa acct 0 7654 betmem December 1st and Mach 3bt to Rat. moaoge or plant mates-bd. 22 APPROVE P AW5NS LOCATIONS NO SPACRE Plating locations sham on pv84651 pare are cpproWnale. Geed on attbated Yt. cordt(ore. Actual padhg diatom mq vny Tram those show We to Mai ate cod/Ions and locations of essttg vegetation. tbvetneeu. ay wtatwns from the plothg plan wan rectors prior app°val by AOA. that epacng for specie. 516.d b to be ra&dam 6,buralbtk.), ad not In a rsgd0 did pattern On-center 'pang caned alt on plat list sd*,otes 017095 5poetq 6beekm. For enarp4. Wen the plan calls fa- 24. 06. .poctg shall vay Ira. 0•.30. 06. wW an average spacing of 24 Ede.. PART 3 - PLANT MAIBUN. STAN)ARD5 3J PLANT MATERIALS AOA 5100 snare", part material par to pbtsg. Plot materials shall to scaly • !...Roan HA western ER • wean Bad. e healthy. dish, n malarial b necessary Oe to caatnctan abmc a or plat "afire Iretallation, the saes, as 4 the pbe spa worthies shall royal be ral to damaged or creatable plot* Plats shall be. nursery Tad nen-rooted of rarmal growth and habit, and free from Osease ar Wdtata. AOA resevw the right to require repbcenert or aubat64lm of ay parts dewed abatable. Trees shall have ea arm 47(561.75 .sge straight tats. Amens spec/ Ned as rettlroterouscIL 0d the control leader Wact ad a ianage6. Container .tack .hall be fully rooted but not root-bound. Plat material wW damaged root zones or bake. root balls MI6 not be accepted. Shrubs shall be o mNi un height of IS Inches. /lathe plot ataxia shall be grow and collected n the maritime Pa0fe NaNwst. Ott rigs WE be of one- to bwysa•oa hood, 3/0. 00. Wh m Yoh be a mans of 4' n length with 4 Iaeral buds exposed oboe goad otter p the top of troth attlq POI be a mW Vn of I. above a teal rod, the bottom W below o 46x . The lama) ads of the aat*gs Yam be a2 at 0 45 degee age a 6 mated clearly 70 00 the rootsg end b plotted h the soil a manor of 12. In dept,. [Wray nut be kept cowered ad moist Pen'9 storage obi and ro a6tsgs Pall be stored more Ulm Urea days from dose 5106 my 0. head P pectin occaa bebben hat oral /pr9 bit. ME+em Apt! 1st ad December Is, rooted attngs or 7C1p11191 .hall be Ned 32 smonor ICMs 5706 645 of plot 150. 0'7 AOA es permitted m bawd plat awed:lag Wth Barerrd .tack of twat .b. a weaned catan.r or E RB pomp ca. be 60145 Red for de6d.ole cardcw platrgs When wallahs. with the ex cepttla, of 7vageen and maple species. PART 4 - PLANT INSTALLATION 4J SOIL MOISTURE NE1Bt11ON AZBIT Add HEWATED 50171054 or appoved aqua to the topsoil backfIll of all plating pis. Foil. .ar7acbrer5 epeclfkatare for directions nor use ad application rota.. 42 MLLE A 2' layer of fro bark nelrh shall be p crowd to base of row tree 06• db. V. o d •h,b Platt O4• db. rtgl fa deroob6 weed control. ad mobWe 43 5TALCY6 Trees Yell be staked nth at bast one stake. 94 tits Mkjt d the tree. Lo :ho ps Contractor shall remove stokes at to end of The me-i or 9sraters p6k a PART 5 - IRRIGATION A temporary by YrkptIon sptan shall be stalled won completion of plat btalbtan WOW Ws restoration areas to erere flat dl platrop race. adequate • coverage. Irmrg1qooLL b rewired w06 to restoration area for at least boa gaming seasons fd6 651 plating to arts.e ade¢ote estallbhna1 of plat material. The iroigatIon sysystem or d Nvwete 51 pa95m shall be set by Landscape Contractor to allow fm IR' of pec4t0an 2 tines per week berme. Jre 15th ad October 31st of to hat year after plating. The Lodscape Coro-actor Yam ad)st the wit/Ws to plow for U2 of preaptotIon once w.eky bebnm .t*y b4 ad October Ist d the second year after Omits If pkrarg roars bedee.. 4ky ad October, ten .*79485 winbe extended to three gcwkg 16az.a. PMT 6 - FINN. ACCEPTANCE Open completion d the ppnbtstklq 6e LLHoldsc 9,. 6obactor WE provide AOA .55 a the actual locations ad abrade of set of plantings With the marked area. I Contractor Wall keep a complete set of pads at the Job site Sorg construction for the purpose of red-Iag rtmdva55 n8046dbns to U. cppoved Woe and .hall update .aid Womobn an bob. AOA shall dppove pkatsg locations. S Reid ore to be emr.ete4 a punch Ibt Pall be prepared b4 AO* oral %butted to to Lo oho gee Goboctor 1a After po t fa Tal accepthonce plan knp4.med1b 6 Imsbeen 000750. Landscape Ooboctor WE provide ar8Alt 5716169. to AD* of Mated material. AO* Ydl meet wrote won a reprsssrfat. of the CYy of 16/1/60 for rots& and .eptaSd of to restoration plan kst0btbn A STATE OF HASHDETON RBSISTERED LANDSCAPE ARCHITECT CATIEEE OLIVER CERT:KATE 70.744 MINE 60S/01 a Date 7/51506 Scale Project • IAtib Sheet 6 51.1 VA SPCIDIXIMILD 1)000 V. SABEY COR PORATION ■ Stream IGE Intergate.East Site Plan SABEY CORPORATION I 12201 Tukwila Intl Blvd - 4th Floor, Seattle, WA 98168 I 206.281.8700 I www.sabey.com A4FRTION OF THE NW 1/4 AND THE SW 1/4, SECTION 10, T. 23 N., R. 4 E., WO GENERAL NOTES: BENCHMARK: I. ALL WORK AND MATERIALS SHALL BE N ACCORDANCE NTH TIE 'STAICAD SFECETCAIDN5 FOR ROAD, 9810E AND MLNCPAL CONSTRUCTION; WASHNGTCN STATE DEPARTMENT OF TRANSPORTATION AND AIE72..W PUBIJC WORKS ASSOOATION. WASHINGTON STATE CHAPTER. CURRENT EDITION. TOGETHER NM THE LATEST UNION OF TIE MY OF TUKWU EN9JEERNG STANDARDS 2. AN APPROVED COPY OF THESE PLANS 111/5T BE CI 9TE WEEVER CONSTRUCTION 5 N PROGRESS 1 PRICER 70 ANY CONSTRUCTION ACTMTY. THE a1T OF TUKNU FRONED6NG DEPARTMENT (206.433.0179) MUST BE CONTACTtD FOR A PRECONSTRUCIION MEETING. DATUM: 4. All LOCATIONS OF DOSING UTIUIES SHOWN HEREON HAVE BEEN ESTABLE ED BY FILED SURVEY CR 01TAIED LRCM AVARA.BE RECORDS AND SHOULD THEREFORE BE CONSIDERED APPROXIMATE ONLY AND NOT NECESSARLY C7IPLETE IT IS THE SOLE Po 49BUTY CE THE CONTRACTOR TO 610EP101001ILY VERBY 11E ACCURACY Cr ALL UTILITY LOCATIONS SHOWN AND TO FURTHER OISCO%(9 AND AVOID ANY OTHER 07U1E5 NOT SHOW HEREON. THE CONTRACTOR SHALL CONTACT THE UTILITIES UNDERGROUND LOCATION 5ERNCE (1.800..24.5555) PI60010 CONSTRUCTION. THE O MER OR HIS REPRESENTATIK SHALL BE NAIEDIATELY CONTACTED W A UIUTY CONFLICT CASTS 5. TYPE 1 CATCH BASINS SHALL BE FIR WSDOT /APWA STANDARD PLAN 0 -1 OR EOUAL 6. TYPE O CATCH BASKS awl BE PER 916501 /APWA STANDARD PLAN 9 -I. OR EQUAL (51' AND 60' NA). 7. STORM IRAN PIPE SHALL DE ADS TYPE N-12 1001 DENSITY POLIET HYTDE CORRUGATED PPE NTH AN NIEORALLY FORMED 5400111 INTERIOR TO THE 8(9.510000115 OF AA9410 M -291. B CONSTRUCTION O 01-WATERING 5157041( E REWIRED. SHALL BE N ACCORDANCE NTH APWA STANDARD SPECIFICATIONS. 9. ALL EARTHWORK UNDER PAINING TO BE USED BY 6940AAR TIIAFTIC SHALL BE CLWPACTED TO MNMU11 95 PERCENT DRY OPTNUM DEN91Y PER A51M 0- 1557 -70 (1100 RED PROCTOR). 10 THE CONTRACTOR SHALL 1® PAINING LOTS AND O6WEWAYS CLEAN AT ALL TIMES BY SWEEPING WASHING OF TRAVELED SURFACE AREA MILL NOT BE ALLOWED. THE CONTRACTOR SHALL SUBMIT A STREAM BYPASS PLAN AND SCHEDULE FOR APPROVAL PRIOR TO CONSTRUCTION. PROUECT 0.411111.14 45 PRO..ECT DAIUM.BB NAV01038 FEET 5. 124W VICINITY MAP t- O En L.L vJ Cf o.< >UW Z Q_ 0102 < U 1j; Z L.L W z EXISTING BLDG 21 -05 SEE SHEET 6 AREA OF WORK EXISTING BLDG 21 -03 SEE SHEET 5 AREA OF WORK SEE SHEET 1 L REVISIONS: APPD. SEE SHEET 3 - - -.3- J CALL FOR UTILITY LOCATES BEFORE YOU DIG 1-800-424-5555 DATE: MAY 15. 2006 DESIGN: DRAWN: CJL CHECKED: REVISION NUMBER: PROJECT NUMBER: DASC0028 DRAWING FILE: COMMUNI i Y DEVELOPBOENT SHEET NO. 1 OF 7 A POTION OF THE NW 1/4 AND THE SW 1/4, SECTION 10, T. 23 N., R. 4 E., W.* ; �-- 21 /COST STREAM BED MST PIPE ARCH � _,/ SLOPE z, 18' DEPTH TEMPORARY SUMP SECTION NO SCALE CONSTRUCTION NOTES O ALL 1122 SNAIL BE 0AE000ID FROM THE MIND PERI,EIEB ACCESS ROAD. O REPA.0 AND REPLACE EXRUOED CURB UPON COMPLEX.* Df WALL CONSTRUCTNM. OPERIMETER ROAD SHALL BE KEPT CLEAR OF EOUPMENT AND STOC10i.ED UMEIOALS AFTER HOURS TO ALLOW FOR EMERGENCY NNW ACCESS w H 0 z 0 < a V w �x 0, • _I C!) a < w Q D a� 0) 0 m H < aY <0 1- Z W Z COST BLOCK WALL TO BE REPLACED W ACCORDANCE WITH THE WALL REPLACEMENT PLAN SHEET WI PREPARED BY EARTH SOLUTIONS NW. PROVIDE &ET PROTECTION ON AU. EXISTING CB's `C PROVIDE TEMPORARY SUMP AT DOSTWG CULVERT EIRRANCE—RESTOWEAN BED GRADIENT UPON COMPLETION OF UPSTREAM DREDG7WG-71AOCRIANE1 -- STABIUZATION. BACKFIL *11H WASHED WELL GRADED GRAVEL MEETING 60FD SPECIFICATIONS SEE SECTION THIS SHEET. REVISIONS: APPD. RECEIVED CALL FOR UTILITY LOCATES BEFORE YOU DIG 1 -800 -424 -5555 DATE: may 15. 2006 DESIGN: DRAWN: CJL CHECKED: REVISION NUMBER: SCATS: AS SHOWN PROJECT NUMBER: DASC0028 DRAWING FEE: PROVIDE INLET PROTECTION ON ALL EXISTING CS'S SHEET N0. 2 OF 7 r • A PORTIJF THE NW 1/4 AND THE SW 1/4, SECTION 10, T. 23 N., R. 4 E., W.M. • CONSTRUCTION NOTES O ALL RCM SHALL E COOUCTED FRGE1 11E EA 1)*6 PERIMETER ALCM ROM. 0 RiPAVE AND RET+IACE CORUDED CURB UPON COMPtrnom OF VN WISDOM,/ O PERIMETER ROAD SHALL E NEST GEAR OF E0UPMENT AM 510EXPEED MATERIALS MEN HOURS TO ALLOW FOR EMERGENCY NOME ACCESS. O DREDGING OF STEAM TOE CONDUCTED BT VACUUM. VEHICLES OPERATE FROM EPSOM PERIMETER ROAD. fi Ii I I ji PROVIDE INLET PROTECTION ON ALL EIOSTING CB'S OS Y nF 00 T BOST BLOCK WALL TO BE SPOT REPAIRED/REPLACED IN ACCORDANCE IMTH THE WALL REPLACEMENT PLAN SHEET Wi PREPARED BY EARTH SOUT10NS NW. NORTH O 5 10 20 ------------------=-==--- COST BLOOT WALL X X X- -X�_y� TRA NA DREDGE COST WOOD RETAINING WALL • PROVIDE INLET PROTECTION ON ALL DOSING CEI S EAST BLOC( WALL TO BE SPOT REPMRED/REPLACED IN ACCORDANCE WIN TIE WALL REPLACEMENT PLAN SHEET WI PREPARED BY EARTI SOLUTIONS NW. RECEIVED JUL 1 0 2136 COMMUNITY DEVELOP(>aENT CALL FOR UTILITY LOCATES BEFORE YOU DIG 1- 800 -424 -5555 SEE SHEET 4 FOR SOUTH SECTION 1 1 1 w 1- g 0^ F_ 11.. z oU w a Z 602 Q <0 cc z w 1— z z Z oQ 0 wg Q Y Co H REVISIONS: • APPD. DATE: MAY 15. 2006 DESIGN: DRAWN: CJJL CHECKED: REVISION NUMBER: SCALE: AS SHOWN PROJECT NUMBER: DASC0028 DRAWING FILE: SHEET NO. OF 7 A PORTO OF THE NW 1/4 AND THE SW 1/4, SECTION 10, T. 23 N., R. 4 E., W.M. • NORTH CONSTRUCTION NOTES PROYCE SOL AMENDMENTS AND PLANT AREA TO PROVIDE SHADE FW MAY. SEE PLANTING PLAN BT OU1IX- ALTYAX w H O c OUw a J (n a Q O eL 2 Q < 0 Z w 1- z PROVIDE INLET PROECTION ON ALL DOSING Cr CONTRACTOR TO USE CAUTION WHEN DREDGING STREAM BED TO AVOID UNDERMINING EXIST ROCK WALL •i. �.•i,iri, i., ixr r �.,�r,irr,:.,�,it�j..�..�r�H OPs��J �j �— ��.(�,(�,:� ;. _ _ :�c��. 1� �(�6 _, (i,G • .�r.J, (�y�. iW.•iJ. - •!1h(i_1 1( *.��'.(� „� �.��.��.r l..�(�,(� : _ •J„el *. .�� �,•0)wp 'iJ'�Ji'411"-9 REVISIONS: APPD. t DREDGE STREAM BED WITH V ACUUM 1- Z -__ AP, i -- RECEIV -- ” �f i ii o n CLuu _ CALL FOR UTILITY LOCATES BEFORE YOU DIG 1- 800 -424 -5555 DATE: MAY 15, 2006 DESIGN: DRAWN: CJL CHECKED: REVISION NUMBER: SCALE: AS SHOWN PROJECT NUMBER: DASC0028 DRAWING FILE: SHEET NO. 4 OF 7 • A PORTION OF THE NW 1/4 AND THE SW 1/4, SECTION 10, T. 23 N., E., W.M. MATCH LINE SEE SHEET 6 PROVIDE INLET PROTECTION ON ALL DOSING C8'S J CALL FOR UTILITY LOCATES BEFORE YOU DIG 1- 800.424 -5555 • NORTH 0 5 io 20 COMP :".. DEVELONrwi_i: W I— O CL I.L g UO w a < D 1- O 1n 2 Q < Z W 1--- Z Z 0- c.9 oco 3 a U Q >— W Q CO O , REVISIONS: APPD. DATE: MAY 15. 2006 DESIGN: DRAWN: 0.1. CHECKED: REVISION NUMBER: SCALE: AS SHOWN PROJECT NUMBER: DASC0028 DRAWING FILE: SHEET NO. 5 OP 7 ORTION OF THE NW 1/4 AND THE SW 1/4, SECTION 10, T. 23 N., R. 4 E.,. REGRADE AS SHOWN TO CONSTRUCT PRESETREMENT HASP! w I- ^O LNL F. I.L z UO w Q D PEI Z t5O2 Q <0 Z w 1-- Z CONSTRUCTION NOTES pl STABAUZE SLOPE 0110 PLANDNGS SEE PUNTNG PUN BY GuYFR- ALTMAN. 0 ONS1RUCT R00( SPILLWAY UPON CO WLEY/CM Cr DREDGING. OQLARN O 10105 DREDGING SEOUENCE O INSTALL 100 FEET OF 1Y W AND CONSTRUCT TEMPORARY 90,013AG DAMS O RflT01E 1191 FROM STREAM. © ORE= STREAM BED WTI VAM0M. O REPEAT 5E(AIENLE AT 100 FOOT INTERVALS REVISIONS: APPD. ORIQNAL GROUN STREAM DATE: MAY 15. 2006 DESIGN: DRAWN: C.L. CHECKED: REVISION NUMBER: FINISH GRADE SCALE: AS SHOWN PROJECT NUMBER: DASC0028 DRAWING FILE: MATCH LINE SEE SHEET 5 CALL FOR UTILITY LOCATES BEFORE YOU DIG 1- 800 -424 -5555 SHEET NO. 6 OF 7 • 24 16 STREAM SECTION 'A' EAST GROUND APPROX COST STREAM BOTTM /H1J --- - - - -- /COST GRACE 34• ■ NEW STEAM CHANEL - -_ ARES EAST ORADE 34• NEW STREAM OIANNEL ..::. it SLOE 1:1 •ar .4V 8.14 TO MATE S 1r TO Nf is MN TNDOIESS WAIN ROM (TYPICAL) j1 SCALE 1• -4• NEW ( ) STREAM TI01L It MN THICKNESS WASHED ROOF 24 16 STREAM SECTION 'A' •ORTION OF THE NW 1/4 AND THE SW 1/4, SECTION 10, T. 23 N., R. 4 E., 24 18 e EAST GROUND APPROX COST STREAM BOTTM /H1J --- - - - -- /COST GRACE 34• ■ NEW STEAM CHANEL - -_ ARES COST WALL FET1;'5 CHANNEL SLOPE 1:1 ••.:`� (TTPKX) « ace( 1:1 ..::. STREAM SECTION 'B' ... i TO MATE S 1r TO Nf (TYPICAL): MN TNDOIESS WAIN ROM 1RFN/ BOITOL PROBE ROCK WALL STREAM SE TION 'D' SCALE 1• -4• •ORTION OF THE NW 1/4 AND THE SW 1/4, SECTION 10, T. 23 N., R. 4 E., 24 18 e 24 16 EAST GROUND APPROX COST STREAM BOTTM /H1J --- - - - -- EASY OUOE! __ .— OD IND - - -_ ARES COST WALL FET1;'5 CHANNEL SLOPE 1:1 ••.:`� (TTPKX) « �:� ' lr MN 1NOO1E55 WASHED ROCK STREAM SECTION 'B' STREAM BOTTOM i 24 16 TYPICAL STREAM SECTION 'E' 24 1e • EAST GROUND APPROX COST STREAM BOTTM /H1J -: EASY OUOE! __ .— OD IND - _ .- COST WALL —. 1111) MI AP PR01 10' 188 THICKNESS WASHED ROM STREAM BOTTOM _ COXTRAQTOR TO MATE S 1r TO Nf scMEj t• -s• TO NEW 1RFN/ BOITOL PROBE ROCK WALL BASE TO WW1 EAST WALL BASE IS BELOW NEW ( ) STREAM TI01L TYPICAL STREAM SECTION 'E' 24 1e • RECEIVED Jt wl COMMUNITY DEVELOPMENT w I— O a cc Z 0 z 0 < g0w�= u) aa o� w <Da� 1,7) O } 0 2 m§ H < <.0 z w Z REVISIONS: APPD. DATE: MAY 15, 2006 DESIGN: DRAWN: GJL CHECKED: REVISION NUMBER: SCALE: AS SHOWN PROJECT NUMBER: DASC0028 DRAWING FILE: SHEET NO. 7 EOF ` — EASY OUOE! __ .— NEYLSIENLOMANEl _ .- Y4'- --- —. (TYPICAL) 10' 188 THICKNESS WASHED ROM STREAM SECTION 'C' scMEj t• -s• RECEIVED Jt wl COMMUNITY DEVELOPMENT w I— O a cc Z 0 z 0 < g0w�= u) aa o� w <Da� 1,7) O } 0 2 m§ H < <.0 z w Z REVISIONS: APPD. DATE: MAY 15, 2006 DESIGN: DRAWN: GJL CHECKED: REVISION NUMBER: SCALE: AS SHOWN PROJECT NUMBER: DASC0028 DRAWING FILE: SHEET NO. 7 EOF