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HomeMy WebLinkAboutPermit L07-036 - BARGHAUSEN ENGINEERS - INSURANCE AUTO AUCTION / SHORELINE SUBSTANTIAL DEVELOPMENTINSURANCE AUTO AUCTION 8801 EAST MARGINAL WY S L07 -036 TO: City of Tukwila Steven M. Mullet, Mayor Department of Col insanity Develo August 22, 2007 NOTICE OF DECISION Jay Grubb, Applicant Washington State Department of Ecology Agencies with Jurisdiction All Parties of Record ment Steve Lancaster, Director This letter serves as a notice of decision and is issued pursuant to TMC 18.104.170 on the following project and permit approval. I. PROJECT INFORMATION Project File Number: L07036 (SHORELINE MANAGEMENT Shoreline Substantial Development Permit) Project Name: Insurance Auto Auction. Project Description: Water Quality Improvements for Insurance Auto Auction Applicant: Jay Grubb, Barghausen Engineers for Insurance Auto Auction Location: 8801 East Marginal Way South, Tukwila Plan Designation: MIC/H II. DECISION SEPA Determination: The City SEPA Responsible Official has previously determined that the project, as proposed, does not create a probable significant environmental impact and issued a Determination of Non - Significance (DNS). Decision on Substantive Permit: The City Community Development Director has determined that the application for a Shoreline Substantial Development Permit does comply with applicable City and state code requirements and has approved that application based on the findings and conclusions contained in the staff report and subject to the following condition: If any archaeological or historic materials are encountered during any of the excavation activities, all work will be stopped and the State Office of Archaeology and Historic Preservation and the concerned tribes' cultural committees and the City of Tukwila staff must be notified. The Decision on this Permit Application is a Type 2 decision pursuant to Tukwila Municipal Code §18.104.010. Other land use applications related to this project may still be pending. III. YOUR APPEAL RIGHTS One administrative appeal to the Shorelines Hearings Board of the Decision is permitted. Any person appealing to the Shorelines Hearings Board may raise certain SEPA issues as part of the appeal to the Shorelines Hearings Board. Appellants should consult the rules and procedures of the Shorelines Hearings Board for details. IV. PROCEDURES AND TIME FOR APPEALING MD Page I of2 Q:\shoreline \L07 -036- Insurance Auto Auction -Water Quality - NOD.doc 08/22/2007 6300 Southcenter Boulevard, Suite #100 0 Tukwila, Washington 98188 0 Phone: 206 - 431 -3670 o Fax: 206 - 431 -3665 The requirements and procedures for appeals to the Shorelines Hearings Board are set forth in RCW 90.58 and WAC 461.08. V. INSPECTION OF INFORMATION ON THE APPLICATION Project materials including the application, any staff reports, and other studies related to the Shoreline Substantial Development Permit are available for inspection at the Tukwila Department of Community Development, 6300 Southcenter Blvd., Suite 100, Tukwila, Washington 98188 from Monday through Friday between 8:30 a.m. and 5:00 p.m. The project planner is Minnie Dhaliwal, who may be contacted at 206 -431- 3685 for further information. Property owners affected by this decision may request a change in valuation for their property tax purposes. Contact the King County Assessor's Office for further information regarding property tax valuation changes. Department of Community Development City of Tukwila MD Page 2 of 2 08/22/2007 Q:\shoreline \L07 -036- Insurance Auto Auction -Water Quality - NOD.doc City of Thkwila Steven M. Mullet, Mayor Department of Comm r unity Development Steve Lancaster, Director STAFF REPORT TO THE DIRECTOR DEPARTMENT OF COMMUNITY DEVELOPMENT August 15, 2007 Project: Water quality improvements at Insurance Auto Auction site File Number: L07 -036 - Shoreline Substantial Development Permit Applicant: Barghausen Engineers for Insurance Auto Auction. Request: Shoreline Substantial Development Permit to do water quality improvements at the Insurance Auto Auction site and some of the improvements are within 200 feet of the Ordinary High Water Mark of the Duwamish River. Associated Permits: SEPA Construction Permit Comprehensive Plan/ Zoning Designation: Manufacturing Industrial Center /Heavy (MIC/H) Staff: Minnie Dhaliwal The following information was reviewed as part of the application. 1. SEPA File number E04 -014. 2. Letters from Department of Ecology to Steve Tibble dated May 15, 2007 and July 31, 2007. 3. Comment letter from Department of Ecology to Joanna Spenser dated May 15, 2007. 4. Storm Drainage and Water Quality Improvement Plans - Sheets C1 —05 prepared by Barghausen Engineers received on July 26, 2007. 5. Letter by the applicant analyzing the project's consistency with Shoreline Management Regulations. 6300 Southcenter Boulevard, Suite #100 0 Tukwila, Washington 98188 0 Phone: 206 - 431 -3670 0 Fax: 206 - 431 -3665 I. Project Description Insurance Auto Auction, which is currently located at the former Paccar site, 8801 East Marginal Way South, was required to install storm drainage improvements. The site also has contaminated soil and Paccar is working with Department of Ecology to clean up the site. The applicant has stated that they were trying to coordinate the water quality improvement work with the environmental remediation work. The subject site is within 200 feet shoreline of the Duwamish River and is zoned Manufacturing Industrial Center/Heavy (MIC/H). The property is approximately 24 acres and is paved for the most part. The primary activities of Insurance Auto Auction include temporary storage (prior to resale) of vehicles that have been declared totaled by the insurance companies. A portion of the water quality improvement work is proposed within the 200 -foot shoreline setback of the Duwamish River. The proposed repairs to the existing drainage control system include removal/replacement of pavement, installation of one catch basin, installation of approximately 120 lineal feet of 8 -inch storm drain pipe and placement of underground Vortechs pre - treatment followed by a stormfilter for primary treatment at both the north and south outfalls on the property. II. Policies of the Shoreline Management Act/Shoreline Master Program The site is located in an area that was annexed by Tukwila from King County in 1989. As no new shoreline master program has been adopted for this area, the project is subject to King County Shoreline Master Program and regulations. Tukwila is the agency responsible for administering King County shoreline regulations as they pertain to this site. III. Shoreline Regulations Following are the relevant review criteria as contained in the King County Shoreline Regulations as applied by the City of Tukwila: King County Code (KCC) Section 25.16.030 General Requirements: A. Non -water related development shall not be permitted waterward of the Ordinary High Water Mark (OHWM). Response: The proposed project is not water ward of the ordinary high water mark. B. ...No structure shall exceed a height of a thirty -five feet ... Response: The proposed water quality improvements are proposed to be subsurface. No other structures are proposed. 2 C. All development shall be required to provide adequate surface water retention and sedimentation facilities during the construction period. Response: The proposed project will meet all King County Surface Water Design Manual requirements for retention and sedimentation facilities during the construction period. D. Development shall maintain the first fifty feet of property abutting a natural environment as required open space. Response: This criterion is not applicable, as the King County shoreline environment designation adjacent to this site is "Urban Environment ". E (1) Parking areas must be located beneath or upland of the development... E (2) Any outdoor parking area perimeter...must be maintained as a planting area with a minimum of five feet. E (3) One live tree...shall be required for each thirty linear feet of planting area. E (4) One live shrub... for each 60 inches of planting area shall be required. E (5) Additional perimeter and interior landscaping of parking areas may be required when large parking areas are proposed. Response: No parking is proposed as part of this project. F. Collection facilities to control and separate contaminants shall be required where storm -water runoff from impervious surfaces would degrade or add to the pollution of receipt waters or adjacent properties. Response: The proposed project will meet all King County Surface Water Design Manual requirements. G. The regulations of this chapter have been categorized in a number of sections; regardless of the categorization of the various regulations, all development must comply with all applicable regulations. Response: The installation of pre- treatment facility will not change the use of the property. No new use is proposed as part of this water quality improvement project. H. Development proposed in shorelines of the state shall maintain setback, provide easements or otherwise develop the site to permit a trail to be constructed or public access to continue where... Response: No new development is being proposed. IV. Comprehensive Plan Shoreline Policies The site is located within the Manufacturing/Industrial Center along the Green/Duwamish River. The Tukwila Comprehensive Plan establishes the following priorities in this shoreline environment: • Redevelopment of under - utilized areas and development of intensive commercial and industrial activities; • Enhancement and restoration of access to the river; and 3 • Protection and restoration of natural environment features and riverbank characteristics, where compatible with development. The proposed water quality improvements will control migration of contaminants to the Duwamish Waterway. These improvements will help in the redevelopment of the subject site. VI. SEPA and other approvals The proposed project was previously issued a DNS. File number E04 -014. The applicant is responsible for working with Department of Ecology and meeting all United States Environmental Protection Agency (EPA) regulations related to contamination issues on the site. VII. Recommendations Approval of the application subject to the following condition: If any archeological or historic materials are encountered during any of the excavation activities, all work will be stopped and the State Office of Archaeology and Historic Preservation and the concerned tribes' cultural committees and the City of Tukwila staff shall be notified. 4 City of Tukwila Department of Community Development 6300 Southcenter Boulevard, Suite #100 Tukwila, Washington 98188 Phone: 206 - 431 -3670 Fax: 206 - 431 -3665 Web site: http: / /www.ci.tukwila.wa.us SHORELINE MANAGEMENT ACT OF 1971 PERMIT FOR SHORELINE MANAGEMENT SUBSTANTIAL DEVELOPMENT File Number: L07 -036 Applied: 05/29/2007 Approved: 08/22/2007 Expiration: 08/22/2009 A permit is hereby granted to: BARGHAUSEN ENGINEERS FOR INSURANCE AUTO AUCTION to: Shoreline Permit for water quality improvements within 200 feet of the OHWM of the Duwamish River Upon the following property: Address: 8801 EAST MARGINAL WY S TUI{W Parcel Number: 5422600060 Section/Township/Range: The following master program provisions are applicable to this development: KING COUNTY SHORELINE MASTER PRO Development under this permit shall comply with the following conditions. Cond: CON0019662 If any archeological or historic materials are encountered during any of the excavation activities, all work will be stopped and the State Office of Archaeology and Historic Preservation and the concerned tribes' cultural committees and the City of Tukwila staff shall be notified. This permit is granted pursuant to the Shoreline Management Act of 1971 and nothing in this permit shall excuse the applicant from compliance with any other Federal, State or local statutes, ordinances or regulations applicable to this project, but not inconsistent with the Shoreline Management Act (Chapter 90.58 RCW). This permit may be rescinded pursuant to RCW 90.58.140(8) in the event the permittee fails to comply with the project as approved and any conditions thereof. CONSTRUCTION PURSUANT TO THIS PERMIT MAY NOT BEGIN AND IS NOT AUTHORIZED UNTIL TWENTY -ONE (21) DAYS FROM THE DATE OF FILING WITH THE DEPARTMENT OF ECOLOGY (D.O.E.) AS DEFINED IN RCW 90.58.140(6) AND WAC 173 -14 -090, OR UNTIL ALL REVIEW PROCEEDINGS INITIATED WITHIN TWENTY -ONE (21) DAYS FROM THE DATE OF SUCH FILING HAVE TERMINATED; EXCEPT AS PROVIDED IN RCW 90.58.140(5)(a)(b)(c). Pursuant to RCW 90.58.180 the decision by the City of Tukwila to issue this Shoreline Substantial Development Permit may only be appealed to the Shoreline Hearing Board. Appeals must be filed with the Shorelines Hearing Board within 21 -days from the filing of this permit with D.O.E. as defined in RCW 90.58.140. For more detail information on appeals, refer to RCW 90.58 and WAC 461.08. Jack Pac Acting Di ector of Department of Community Development Construction or substantial progress toward construction must begin within two (2) years from the effective date of the permit (the date the permit is filed with D.O.E.), per RCW 90.58.143(4). Shoreline Management Act Permit Data Sheet and Transmittal Letter From: City of Tukwila Department of Community Development 6300 Southcenter Blvd. Suite 100 Tukwila WA 98188 To: Ms Sandra Lange, Environmental Planner Department of Ecology NW Regional Office 3190 160TH Ave SE Bellevue WA 98008 Date of Transmittal: 08 -22 -06 Type of Permit: Substantial Development Local Government Decision: Approval Date of Receipt: Applicant Information: Name: Jay Grubb, Barghausen Engineers for Insurance Auto Auction Address: 18215 72 °d Avenue South, Kent WA 98032 Phone: 425- 251 -6222 Is the applicant the property owner? No Location of the property: 8801 East Marginal Way South, Tukwila WA. Water Body Name: Duwamish/Green River Shoreline of Statewide Significance: Yes Environment Designation: Urban Description of Project: Water quality improvements including installation of storm water pretreatment facilities within the shoreline zone. Notice of Application Date: 06 -20 -2007 Final Decision Date: August 22, 2007 By: Minnie Dhaliwal, Senior Planner, City of Tukwila Phone Number: (206) 431 -3685 Dept. Of Community Development City of Tukwila AFFIDAVIT OF DISTRIBUTION I, cg r HEREBY DECLARE THAT: (A,Sall Notice of Public Hearing Determination of Non - Significance Project Name: (,(44/t/t. Cel Aftio %4-uAc?ov1 Notice of Public Meeting Mailer's Signature: Mitigated Determination of Non- Significance Person requesting mailing: 144\vin 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 t4 horeline Mgmt Permit Notice of Application for Shoreline Mgmt Permit _ __ FAX To Seattle Times Classifieds Mail: Gail Muller Classifieds PO Box 70 - Seattle WA 98111 they ilk - }`(Q S-/ b,i 1 Dc Was mailed to each of the addresses listed on ,this A d y of t in the year 20f)-1 PA ADMINISTRATIVEFORMSWORMSUFFIDAVITOFDISTRIBUTION Project Name: (,(44/t/t. Cel Aftio %4-uAc?ov1 Project Number: 7 -03 Mailer's Signature: OCjL- Person requesting mailing: 144\vin T.bk,a.J2 G04, I PA ADMINISTRATIVEFORMSWORMSUFFIDAVITOFDISTRIBUTION )(U.S. ARMY CORPS OF ENGINEERS () FEDERAL HIGHWAY ADMINISTRATION DEPT OF FISH & WILDLIFE 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 *DEPT OF ECOLOGY, SEPA DIVISION* (OFFICE OF ATTORNEY GENERAL • SEND CHKUST WI DETERMINATIONS • SEND SITE MAPS W1TH DECISION OFFICE OF ARCHAEOLOGY ( ) TRANSPORTATION DEPARTMENT DEPT NATURAL RESOURCES () OFFICE OF THE GOVERNOR () DEPT OF COMM. TRADE & ECONOMIC DEV. 3 EPT OF FISHERIES & WILDLIFE « KING COUNTY AGENCIES () BOUNDARY REVIEW BOARD () FIRE DISTRICT #11 () FIRE DISTRICT 02 () K.C. WASTEWATER TREATMENT DIVISION () K.C. DEPT OF PARKS & REC 00.C. ASSESSORS OFFICE KWILA SCHOOL DISTRICT K1MLA LIBRARY NTON UBRARY • () KENT UBRARY . . . () CITY OF SEATTLE UBRARY SCHOOLS/LIBRARIES UTILITIES O OWEST ( ) SEATTLE CITY LIGHT () PUGET SOUND ENERGY () HIGHLINE WATER DISTRICT () SEATTLE WATER DEPARTMENT ( ) AT &T CABLE SERVICES CITY AGENCIES () KENT PLANNING DEPT ( ) TUKWILA CITY DEPARTMENTS: ( ) FIRE ( ) FINANCE () BUILDING ( ) MAYOR () PUBLIC WORKS () POLICE () PLANNING () PARKS & REC. () CITY CLERK OTHER ( ) PUGET SOUND REGIONAL COUNCIL ( ) SW K C CHAMBER OF COMMERCE NMUCKLESHOOT INDIAN TRIBE CULTURAL RESOURCES PROGRAM FISHERIES PROGRAM (WILDLIFE PROGRAM ( ) SEATTLE TIMES ( ) SOUTH COUNTY JOURNAL PAADMMISTRATIV EIFORMSICHKLIST.DOC () HEALTH DEPT SPORT OF SEATTLE (.) KC. DEV & ENVIR SERVICES-SEPA INFO CNTR )1C. TRANSIT DIVISION - SEPA OFFICIAL KC. LAND & WATER RESOURCES ( ) FOSTER LIBRARY ( ) K C PUBLIC UBRARY ( ) HIGHLINE SCHOOL DISTRICT ( ) SEATTLE SCHOOL DISTRICT () RENTON SCHOOL DISTRICT ( ) OLYMPIC PIPELINE ( ) VAL -VUE SEWER DISTRICT ( ) WATER DISTRICT 020 ( ) WATER DISTRICT 0125 () CITY OF RENTON PUBLIC WORKS () BRYN MAWR- LAKERIDGE SEWER/WATER 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 (`DUWAMISH INDIAN TRIBE () P.S. AIR POLLUTION CLEAN AGENCY () SOUND TRANSIT (X,DUWAMISH RIVER CLEAN -UP COALITION 'SEND NOTICE OF AU. APPUCATIONS ON OUWAMISH RIVER MEDIA ( ) HIGHLINE TIMES () CI.TUKWILA.WA.US.WWW 1V) a w r y S . o' FD-n.swv I P 6 / t-f C, 4 e 6, Hiff/;:a.e-tico `7o K I G ( I �o —1 6o m, ¶— 192-e II-e A,Le w 4 o1 rote. --S ,c () U.S. ARMY CORPS OF ENGINEerw () FEDERAL HIGHWAY ADMINISTRATION () DEPT OF FISH & WILDLIFE () () () () () () () U.S. DEPT OF H.U.D. () NATIONAL MARINE FISHERIES SERVICE WASHINGTON STATE AGENCIES () DEPT OF SOCIAL & HEALTH SERV. () DEPT OF ECOLOGY, SHORELAND DIV () DEPT OF ECOLOGY, SEPA DMSION• () OFFICE OF ATTORNEY GENERAL SEND CHICLIST W/ DETERMINATIONS • SEND SITE MAPS WITH DECISION OFFICE OF ARCHAEOLOGY TRANSPORTATION DEPARTMENT DEPT NATURAL RESOURCES . . OFFICE OF THE GOVERNOR DEPT OF COMM. TRADE & ECONOMIC DEV. DEPT OF FISHERIES & WILDLIFE > KING COUNTY AGENCIES () BOUNDARY REVIEW BOARD () FIRE DISTRICT #11 () FIRE DISTRICT 12 () K.C. WASTEWATER TREATMENT DMSION () KC. DEPT OF PARKS & REC () KC. ASSESSORS OFFICE ( ) TUKWILA SCHOOL DISTRICT () TUKWILA UBRARY () RENTON UBRARY () KENT UBRARY () CITY OF SEATTLE UBRARY O OWEST ( ) SEATTLE CITY LIGHT () PUGET SOUND ENERGY () HIGHUNE 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 () HEALTH DEPT () PORT OF SEATTLE (.) KC. DEV & ENV!R SERVICES-SEPA INFO CNTR ( ) KC. TRANSIT DMSION - SEPA OFFICIAL ( ) KC. 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 120 ( ) WATER DISTRICT #125 ( ) CITY OF RENTON PUBUC WORKS () BRYN MAWR- LAKERIDGE SEWER/WATER 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. OTHER LOCAL AGENCIES () DUWAMISH INDIAN TRIBE () P.S. AIR POLLUTION CLEAN AGENCY ( ) SOUND TRANSIT () DUWAMISH RIVER CLEAN -UP COALITION *SEND NOTICE OF ALL APPLICATIONS ON OUWAMISH RIVER ( ) PUGET SOUND REGIONAL COUNCIL ( ) SW K C CHAMBER OF COMMERCE ( ) MUCKLESHOOT INDIAN TRIBE ( ) CULTURAL RESOURCES PROGRAM ( ) FISHERIES PROGRAM ( ) WILDLIFE PROGRAM MEDIA ( ) SEATTLE TIMES ( ) SOUTH COUNTY JOURNAL P: ADMTNISTRAT1VEWORMSICHKLIST.DOC () HIGHLINE TIMES ( ) CI.TUKWILA.WA.US.VWWV 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 Attornev 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 PMT'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:WDMINISTRATIVEIFORMS CUST.DOC City of 71,thwi Steven M. Mullet, Mayor Department of Comma % ity Development Steve Lancaster, Director NOTICE OF APPLICATION DATED JUNE 20, 2007 The following application has been submitted to the City of Tukwila Department of Community Development: PROPOSAL: Installation of stormwater pre- treatment facilities within 200 feet of the ordinary high water mark of the Duwamish River. The proposed changes to the existing drainage system include removal/replacement of pavement, installation of catch basins, storm drain pipes and placement of underground pre- treatment units. APPLICANT: Barghausen Consulting Engineers on behalf of Insurance Auto Auction. LOCATION: 8801 East Marginal Way South, Tukwila WA. PROPERTYOWNER: Merrill Creek Holdings LLC FILE NUMBERS: L07 -036 (Shoreline permit) OTHER PERMITS: Development Permit These files can be reviewed at the Department of Community Development, 6300 Southcenter Blvd., #100, Tukwila, WA. Please call (206) 431 -3670 to ensure that the file(s) will be available. OPPORTUNITY FOR PUBLIC COMMENT You can submit comments on this application. You must submit your comments in writing to the Department of Community Development. Comments regarding the Shoreline Permit (L07 -036) are due by 5:00 p.m. on July 20, 2007. If you have questions about this proposal contact Minnie Dhaliwal, the Planner in charge of this file, at (206) 431 -3685. Anyone who submits written comments will become parties of record and will be notified of any decision on this project. APPEALS You may request a copy of any decision on this project or obtain information on your appeal rights by contacting the Department of Community Development at 206 -431 -3670. Decision related to the Shoreline is made by the Director of Community Development and may be appealed to the State Shorelines Hearing Board. The Department will provide you with information on appeals if you are interested. DATE OF APPLICATION: NOTICE OF COMPLETE APPLICATION: NOTICE OF APPLICATION POSTED: May 29, 2007 June 8, 2007 June 20, 2007 6300 Southcenter Boulevard, Suite #100 0 Tukwila, Washington 98188 0 Phone: 206 - 431 -3670 0 Fax: 206 - 431 -3665 Jam Free Printing www.avery.com Use Avery® TEMPLATE 5160® 1- 800-GO -AVERY oA,ERY® 5160® BOEING COMPANY THE TENANT TENANT 100 N RIVERSIDE M/C 3 -4027 1420 S TRENTON ST 1620 S 92ND PL CHICAGO, IL 60606 SEATTLE, WA 98108 SEATTLE, WA 98108 MCELROY GEORGE & ASSOC INC 3131 S VAUGHN WAY 301 AURORA, CO 80014 KING COUNTY 500 4TH AVE SEATTLE, WA 98104 KING COUNTY 500 K CADMIN SEATTLE, WA 98104 MERRILL CREEK HOLDINGS LLC TENANT TENANT 600 UNIVERSITY ST 2820 I • 6505 PERIMETER RD S 8801 E MARGINAL WAY S SEATTLE, WA 98101 I SEATTLE, WA 98108 TUKWILA, WA 98108 I TENANT TENANT TENANT 8811 E MARGINAL WAY S 9100 E MARGINAL WAY S 9229E MARGINAL WAY S TUKWILA, WA 98108 TUKWILA, WA 98108 TUKWILA, WA 98108 KING CO MUSEUM OF FLIGHT .TENANT CONTAINER PROPERTIES LLC 9404 E MARGINAL WAY S . 9725 E MARGINAL WAY S PO BOX 1043 TUKWILA, WA 98108 TUKWILA, WA 98108 KENT, WA 98035 WOOD MEADOWS L L C PO BOX 2908 KIRKLAND, WA 98083 BURLINGTON NORTHRN SANTA. FE PO BOX 96189. FORT WORTH, TX 76161 Maura S. O'Brien, PG/HG #869 Professional Geologist/Hydrogeologist, Site Mgr. WA State Dept. of Ecology Toxics Clean -up Program 3190 — 160th Ave. SE Bellevue, WA 98008 -5452 A83AV-09-008-1 ®09LS 31V1dIN31 ®tiaAV esn J(U.S. ARMY CORPS OF ENGINEERS () FEDERAL HIGHWAY ADMINISTRATION DEPT OF FISH & WILDLIFE 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 ,O*DEFT OF ECOLOGY, SEPA DIVISION* J(OFFICE OF ATTORNEY GENERAL • SEND CHKUST W/ DETERMINATIONS • SEND SITE MAPS WITH DECISION 14OFFICE OF. ARCHAEOLOGY ( ) TRANSPORTATION DEPARTMENT . 4DEPT NATURAL RESOURCES () OFFICE OF THE GOVERNOR () DEPT OF COMM. TRADE & ECONOMIC DEV. DEPT OF FISHERIES & WILDLIFE M. • KING COUNTY AGENCIES () BOUNDARY REVIEW BOARD () FIRE DISTRICT 111 • () FIRE DISTRICT #2 () KC. WASTEWATER TREATMENT DIVISION () KC. DEPT OF PARKS & REC ()rKC. ASSESSORS OFFICE KW ILA SCHOOL DISTRICT. KWMLA UBRARY (tENTON LIBRARY • () KENT UBRARY • . () CITY OF SEATTLE UBRARY () HEALTH DEPT SPORT OF SEATTLE (K T D SERVICES-SEPA C. TRANSIMS ON -- SEPA C OFFICIAL KC. LAND & WATER. RESOURCES SCHOOLS/LIBRARIES, ( ) FOSTER LIBRARY () K C PUBLIC UBRARY ( ) HIGH-IRE SCHOOL DISTRICT ( ) SEATTLE SCHOOL DISTRICT ( ) RENTON SCHOOL DISTRICT UTILITIES () GWEST ( ) SEATTLE CITY UGHT () PUGET SOUND ENERGY () HIGHUNE WATER DISTRICT () SEATTLE WATER DEPARTMENT ( ) AT &T CABLE SERVICES CITY AGENCIES () KENT PLANNING DEPT ( ) T UKWILA CITY DEPARTMENTS: () PUBUC 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 FISHERIES PROGRAM WILDLIFE PROGRAM () SEATTLE TIMES () SOUTH COUNTY JOURNAL P :MDMINISTRATIVSFORMSICNKLIST.DOC ( ) OLYMPIC PIPELINE ( ) VAL-WE SEWER DISTRICT ( ) WATER DISTRICT #20 ( ) WATER DISTRICT #125 ( ) CITY OF RENTON PUBUC WORKS () BRYN MAWR- LAKERIDGE SEWERIWATER 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 PLNO PROJ. LOCAL AGENCIES MEDIA (3DUWAMISH INDIAN TRIBE ( ) P.S. AIR POLLUTION CLEAN AGENCY ( ) SOUND TRANSIT ODUWAMISH RIVER CLEAN -UP COALITION 'SEND NOTICE OF ALL APPUCATIONE ON OUWANISH INNER () HIGHUNE TIMES () CLTUKWMLA.WA.US.VWW I (� adtivra S . o' -Y -'74^- P6/1-16i-wee coaz( ji3r7 v rlc isF e,.(1,c1t. m S f te T f- b)- E410 �, I 9°0 —1 6o 1..60 FT SHORELINE SITE PLAN A PORTION OF THE FRANCIS MCNATT DONATION CLAIM NO. 38, IN SECTION 33, TOWNSHIP 24 NORTH, RANGE 4 EAST, W.M, IN KING COUNTY, WASHINGTON TAX LOT No. Ow 'u331 _e'.nq Co- any _.I E. R.:# i W.7 9H8'3l b8'W 7506.71' VICINITY MAP NIB 114/" • 1 , .,,. 1 euliowc SIR BENLYRI/RN 10P VW' IVL ELOARJN . 10.10 11101 04039 ANA) • 2717257 i o: D 3 8 8 AREA OF ER TOP OF 8N011 BASE ROOD ELEVATION 11.91 3 FEET (1988 AND) LEAN HIGH :0108 UNE own) 8.01 ! FEET (1989 NAND) I ; I ,l El )I 11 SURVEY INFORMATION LEGAL DESCRIPTION A PORTION OF 1HE FRANCS MCNATT DONATION CLAW N0. 38. IN SECTION 33, TOWNSHIP 24 NORTH RANGE 4 FAST, W.Y., IN IOC COUNTY, WASHINGTON, BEING THAT PORTION OF TRACT N0. 3 AS SHOWN ON 114E PAR1010N MAP FILED IN CAUSE N0. 120091. OF THE SUPERIOR COURT OF PONG COUNTY, WASHINGTON, MORE PARTICULARLY DESC95ED AS FOLLOWS COMMENCING ON THE WESTERLY UNE OF EAST HANGOUT. WAY SOUTH. WHICH PONT UNES 187.88 FEET SOUTH OF AN INTERSECTION HRH THE NORM UNE OF SAID DONATION LAO CLAW N0. 38; THENCE NORM 89' 18' 18' WEST, 1499.53 FEET TO THE EASTERLY MARGIN OF COMMERCIAL WATERWAY NO. 1 (DUWANISH WATERWAY); THENCE SOUTH 14 00' of EAST, 456.1 FEET HONG 590 ELY MARGIN TO A POINT; THENCE EAST 1574.72 FEET TO 111E WESTERLY LINE OF SAID EAST MARG0U1 WAY THENCE NORTHERLY ALONG SAID WESTERLY LINE AT 481 FEET, MORE OR LESS. TO THE PONT OF BEGINNING. EXCEPT THAT PORTION THEREOF CONVEYED BY MONSANTO CH IDCAL COMPANY TO GREAT NORIHFN RAILWAY COMPANY, ET Al. BY DEED DATED MARCH 7, 1957. RECORDED UNDER ROTC COUNTY RECORDING N0. 4784818. ALSO A PORTION OF THE FRANCES MCNATT DONATION OM NO. 38, IN SECTION 33. TOWNSHP 24 NORTH RANGE 4 FAST. W.M.. IN ONO COUNTY, WASHINGTON, BEING THAT P0R110N OF TRACT 2 AS SHOWN ON THE PARTITION MAR FILED IN CAUSE N0. 120091, OF THE SUPEROR COURT OF KING COUNTY, WA5HWGION. MORE PARTICULARLY DESCRIBED AS FOLLOWS: COMMENCING ON THE WESTERLY UNE OF FAST MARGINAL WAY SOUTH, WHICH POINT SEARS NORTH 89' 15' 54' WEST. 2470.01 FEET ALONG THE DONATION CLAN UNE AND SOUTH 23' 40' 59' EAST, 468.77 FEET ALONG THE WESTERLY UNE OF FAST MA 00404. WAY SOUTH FROM THE INTERSECTION OF THE LINE BETWEEN THE DONATAW CLAMS OF FRANCIS MCNATT AND HENRY VAN ASSELT WITH THE FAST UNE OF SECTION 33. TOWNSHIP 24 NORTH. RANGE 4 EAST, W36. W KING COUNTY. WASHINGTON; THENCE WEST 1574.72 FEET TO THE EASTERLY UNE OF COLIYERCW. WATERWAY 80. 1; THENCE EAST 1053.10 FEET TO A POINT DESIGNATED HEREIN AS POINT 'A' FOR SUBSEQUENT REFERENCE; THENCE SOUTH 23' or 00' FAST, 46.03 FEET; THENCE EAST 561.38 FEET TO 114E WESTERLY LINE OF FAST MARGINAL WAY SOUTH; THENCE NORM 23' 40' 59' WEST ALONG SAID WESTERLY UNE 297.03 FEET TO THE POINT OF BROWNING. EXCEPT THAT PORTION THEREOF CONVEYED BY MONSANTO CHEMICAL COMPANY TO GREAT NORTHERN RAILWAY COMPANY, ET AL BY DEED DATED MARCH 7, 1957 AND RECORDED UNDER TONG COUNTY RECORDING N0. 4784816. DATES OF SURVEYS FIELD swims 9Y 8980189501 CONSULTING ENGINEERS. NC. CONDUCTED WRING DECEMBER 1969, JANUARY 2001. & OCTOBER 2003. ALL SURVEY MONUMENTS SHOWN AS FOUND WERE VISITED AT 111AT TINE HORIZONTAL DATUM - BASS OF BEARNOB NORTH AMERICAN DATUM OF 1927 WASHNGTON STATE PLANE COORDINATE SYSTEM - NORM ZONE THE MONUMFNIED OFFSET CENTERLINE OF FAST AURORAL WAY TAKEN AS North 2232'07' W..1. AS PER Book 72, of Surrey., Pay. 222. KING COUNTY RECORDS VERTICAL DATUM - BASS OF ELEVATIONS NAND 1988 CRICINA. PROJECT BENCHMARK FROM 1988 SURVEY BY BARGHN)SEN CONSULTING ENCHAINS 2' BRASS DISK SURFACE MONUMENT ON FAST SIDE OF 102nd SL BRIDGE (DESTROYED) BITE BENGNMARK TOP OF 'PK' NAL SET ON EAST SIDE OF EAST MARGINAL WAY (SEE DRAWING) ELEVATION - 18.68 FEET 611E ADDRESS 8801 EAST MARGINAL WAY SEATDE, WA 98108 TAX ACCOUNT NUMBER 542260- 0060 -03 ROOD 9FORMATION FEDERAL DAER0EMCY WM/0EMEN1 AGENCY (FE4A) INFORMATION: FIRM (F.000 INSURANCE RATE MAP) MAP No. 5303300645 F PANEL 845 OF 1725, GATED MAY 10. 1995 MOST OF 111E SUBJECT PROPERTY IS H ZONE '0' - iAREAS DEMOUNTED TO BE OUTSIDE 500 -YEAR FL000PLNN' A SMALL PORTION OF THE SUBJECT PROPERTY ALONG THE WEST SCUMMY S N ZONE 'AE' - SPECIAL FLOOD HAZARD AREAS INOUDATED ST 100 -YEAR FLOOD BASE FLOOD ELEVATSNS DETERMINED - 8.4 ET (1929 NG10) - ADO 3.51' - 11.91 FEET (NAND 1988 SEE DRAWING). TAX LOT u 512211= -1010 COHTAMER 'PROPERTIES 9229 E. Har4.o: Way 5. Tletzita, WA 91110E CONTACTS REJECT MANAGER: DESIGN ENGINEER: OWNER: STEVE 11138LE PH 847- 340 -6822 STBB1EONN.00Y INSURANCE AUTO AUCTIONS 2 WESTBROOK CORPORATE CENTER SUITE 500 WESTCHESTER. I. 80154 JAY GRUBB /CH/RLES BULL C/0 BARGHAUSEN 0015011910 ENGINEERS 18215 72ND AVE SOUTH KENT WA 98032 PH 425 941 -2750 JGRUBBOBARGINUSEN.COM MFRRILL CREF)( HOLDINGS LLC C/0 BEN MARGOLES WASHINGTON REAL ESTATE HOLDINGS. LLC 600 UNIVERSITY STREET, SUITE 2820 SEATTLE WA 98101 • / / / / / / / / / / 542.6: 1 FCGFND ASPHALT CONCRETE 088181 SEERS MOW& Mg - 9 -9 DAS UNE -146911- 1(000190 UNDERGROUND - 10+9) POWER NOERCRWND P(09)- POKER OVERHEAD -X- OM NM FIRE 22 ••••••-•• GONG GOHO15 RECEIVED COMMUNiTh DEVELOPMF)J r N N CO 41 £/L9 1 EXPIRES 01 -07 -9 11419 -t.0 9. jay dm). Oote /lime: 5/24/2007 4.79 P4 Scale:0.016667 Page 1 of 1 Li - n S F,IVtf uti St , yes al ti t -S 1., a _ ;S1D"eW�uF.S4 ,aiC 't j r 1 en . ..r - ,S,D,iirOti5E1 ry .l? _, ai �rilluo1, Sr 1 '. \ ' NV y `r kIfZ1t, r i3 Jl 1 :1 �l r..: •-• .Tsr0— (t—A rSig 'a ;7 Sa]ilrte iiJ;St! 11.1 1 J \ ' J } .I - lly y^ ryry i > 1 ' :: Vii+.! , �'S``�' e1:Cgrli� <, Q " .p..:';'121'.- - r _.. 4'', r , ,S •Graham' { {. s .i ,;� . w ill r • ,_SrEidd!ySt 1 . 'RL ..~* " l._ a, 7.. S,hlur't.enS E.. • Sr►.JEsr�aSi5t� t v n_-,t i '., • :p • i , 4 i { g,gh • CW . O Or-, 0 r & 4- Ii4 rC : . h3 , 1&t� ...e vii ,� , S_41uTdeh'Se'. t7 V .— 5i__ tz . '' %; L • t 1� AS,i� "eriyan' 5E -". Q 1 In 4 • c1.. + kT I a. 4 �o f r. �t l F y a ,c� r 1. Si96ir t r 1�i 11 F •• .9i sr99tr1St %l - - ,n - • .L • 5,1'60E1'1'5 il O, < ��_- -- 1 safitE d si) 1 �O '39 •.' - . . s ;tonEI 5Ef `. . • SY0511i.S1 L P<il [ e[itc�n,St; . L• S'.bl efrli 'f]bn St S bircCtq� SE RuK1SurySt 5,11 51PIIgcfrtti�SN 1 • `u< SiP,Crr.St� l' - svr,> top %11;;sn _;� StiLOGEH"5 GIS Cit N y 0.45m i Copyright 02006 All Rights Reserved. The information contained herein is the proprietary property of the contributor supplied under license and may not be approved e>acept as licensed by Digital Map Products. httn : / /mans.diaitalmancentral.com/ production /CitvGIS/V07r6n2 /indexA.htm1 06/11/2007 Dept. Of Community Development City of Tukwila AFFIDAVIT OF DISTRIBUTION 1. SC 62AL1 SaCt--HEREBY DECLARE THAT: Notice of Public Hearing Determination of Non - Significance Notice of Public Meeting Mailer's Signature: 44AAA.' � --� 4 4_c7C k. Mitigated Determination of Non - Significance Board of Adjustment Agenda Pkt Determination of Significance & Scoping Notice Board of Appeals Agenda Pkt Notice of Action Planning Commission Agenda Pkt Official Notice Short Subdivision Agenda „ V /tice 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 20 day of in the year 2007 P:W DMINISTRATIVEFORMS \FORMSWFFIDAVITOFDISTRIBUTION Project Name: ;16,1, fiV Project Number: 1- 0 `' -p3 („? Mailer's Signature: 44AAA.' � --� 4 4_c7C k. Person requesting mailing: 14/1-,,'7 (,t9aa P:W DMINISTRATIVEFORMS \FORMSWFFIDAVITOFDISTRIBUTION Gity of Tukwila Steven M. Mullet, Mayor Department of Community Development Steve Lancaster, Director CITY OF TUKWILA MITIGATED DETERMINATION OF NONSIGNIFICANCE (MDNS) ADDENDUM Description of original proposal: The original proposal was to demolish four buildings (approximately 100,000 square feet of building area) on a 24 -acre site for use by Insurance Auto Auctions for its operations. The area around the demolished buildings was proposed to be used for parking and storage of salvaged vehicles. Description of this Addendum:. In addition to the four buildings that have been already demolished, applicant is proposing to demolish two other buildings that are 5,410 and 1,800 square feet. Proponent: Merrill Creek Holdings Llc. for Insurance Auto Auction. Location of Proposal: 8801 East Marginal Way South Lead Agency: i of Tukwila File Number: E04 -014 The City has determined tha • I endum 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. The original MDNS was issued on August 18, 2004. This addendum is adopted on March 9, 2004. Steve Lancaster, SEPA Official for the City of Tukwila, Washington. 6300 Southcenter Boulevard Tukwila WA 98188. (206)- 431 -3670 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 • City of Tukwila Department of Community Development / 6300 Southcenter BL, Suite 100 / Tukwila, WA 98188 / (206) 431 -3670 MITIGATED DETERMINATION OF NON - SIGNIFICANCE (MDNS) File Number: E04 -014 Applied: 06/25/2004 Issue Date: 08/18/2004 Status: ISSUED Proponent: 1Merrill Creek Holdings Llc . Lead Agency: City. of Tukwila Description of Proposal: Demolition of four buildings approximately 100,000 square feet of building area. The area is proposed to be used for parking and storage of salvaged vehicles. Location of Proposal: Address: 8801 EAST MARGINAL WY S TUKW Parcel Number: 5422600060 Section/Township /Range: SE 33/24/04 The City has determined that the proposal does not have a probable significant adverse impact on the environment. An environmenta impact statement (EIS) is not required under RCW 43.21 c.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. Thy conditions for this SEPA Determination are amended at the end of this document. This MDNS is issued under WAC 197 -11 -350. The conditions are attached. Comments must be submitted by I, 2004 The lead agency will not act on this proposal for 14 days from the date below. For a copy of the appeal procedures, contact the City o Tukwila Department of Community Development. Steve Lancaster, Responsible Official City of Tukwila 6300 Southcenter Blvd Tukwila, WA 98188 (206)431 -3670 t&4 I2O04. 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 43.21 C.075) doc: Miscperm E04 -014 Printed: 08 -17 -2004 City of Tukwila Department of Community Development / 6300 Southcenter BL, Suite 100 / Tukwila, WA 98188 / (206) 431 -3670 File Number: E04 -014 Applied: 06/25/2004 Issue Date: 08/18/2004 Status: ISSUED SEPA Determination Conditions: 1: To mitigate any adverse impacts associated with this proposal, the applicant shall either 1) provide pretreatment of stormwater prior to discharge to the river; or 2) demonstrate to the satisfaction of the city's Public Works department that the existing storm water system has adequate pretreatment provisions; or 3) revise/expand /modify the existing storm drainage facilities to provide adequate pretreatment. doc: Miscperm E04 -014 Printed: 08 -17 -2004 FINAL STAFF EVALUATION FOR ENVIRONMENTAL CHECKLIST File No: E04 -014 I. SUMMARY OF PROPOSED ACTION The current proposal is to demolish four buildings (approximately 100,000 square feet of building area) on a 24 -acre site for use by Insurance Auto Auctions for its operations. The area around the demolished buildings will be used for parking. Also, tenant improvements are proposed to two existing buildings. II. GENERAL INFORMATION Project Name: Insurance Auto Auctions. Applicant: Mike Brooks for Washington Holdings. Location: 8801 East Marginal Way South Zoning and Comprehensive Plan Designation: MIC/H Notice: Notice of application was issued on July 29, 2004. The following information was considered as part of review of this application: 1. SEPA Checklist dated June 25, 2004 signed by Mike Brooks. 2. Endangered Species Act Screening Checklist received June 25, 2004. 3. Trip generation report dated June 25, 2004 and prepared by Garry Struthers Associates Inc. 4. Demolition plans prepared by David Kehle Architect. III. REVIEW PROCESS The proposed action is subject to State Environmental Policy Act (SEPA) review as the project does not meet the exemptions listed under WAC 197 -11 -800. Also, the project was determined to be not a Planned Action since there were additional impacts associated with the treatment of storm water that needed to be considered to fully evaluate the environmental impact of the proposal. IV. BACKGROUND/PROPOSAL The subject site is the former Paccar site used to manufacture Kenworth trucks. In the past SEPA and shoreline permits have been issued for this site for soil remediation work. The current proposal is to demolish four existing buildings and use the area for storage of salvaged vehicles. The building that will be demolished have a footprint of 47,980 sq. ft., 27,325 sq. ft., 5,040 sq. ft. and 3,847 sq. ft. Tenant improvements are proposed to two other existing buildings that are approximately 215,400 square feet and 13,970 square feet. Some portions of the three buildings are within 200 feet of the mean high water mark of the Duwamish River. Per correspondence received from Sandra Lange, Department of Ecology, the demolitions do not require a Shoreline Substantial Development Permit. V. REVIEW OF THE ENVIRONMENTAL CHECKLIST The following lists the elements contained within the Environmental Checklist submitted for the proposed project. The numbers in the staff evaluation correspond to the numbers in the Environmental Checklist. If staff concurs with the applicant's response, this is so stated. If the response to a particular item in the checklist is found to be inadequate or clarification is needed, there is additional staff comment and evaluation. A. BACKGROUND: 1 -7 -- Concur with checklist. 8- SEPA and Shoreline permits were issued for some environmental clean up that was being done for the site under the Department of Ecology's Voluntary Cleanup program. 9 -NPDES permit from the Department of Ecology is required. Also, if any improvements are done or required to the oil/water separators within 200 feet of the mean high water mark of the Duwamish River, a shoreline substantial development permit will be required. 10 -11 Concur with checklist. 12 —The site does abut the Duwamish River so a portion of the site is within the shoreline zone. B. ENVIRONMENTAL ELEMENTS: 1. Earth: a -g -- Concur with checklist. h —Best Management practices must be followed and all King County Surface Water Design Manual standards will be followed to control any erosion during the demolition process. 2. Air: a -c— Concur with checklist. 3. Water: a(1) — Concur with checklist. a(2)— Per correspondence received from the Department of Ecology (see attached email dated June 17, 2004 from Sandra Lange) a shoreline substantial development was not required for demolition of the existing buildings that were within 200 feet of the mean high water of the Duwamish River. a(3)- a(6)- Concur with checklist b(1) and (2) -- Concur with checklist. c (1) —The project is to demolish existing buildings and use that area for parking of vehicles. The buildings that will be demolished will have the foundations left in the ground with the additional surface used for storage of vehicles with some vehicles driving over the area. The applicant is in the process of conducting a detailed investigation of the entire storm system. Some of the storm drainage pipe system was disconnected or diverted to accommodate excavations for the soil remediation. As part of the storm drainage system investigation the applicant shall evaluate the existing pretreatment facilities. To mitigate any adverse impacts associated with this proposal, the applicant shall either 1) provide pretreatment of stormwater prior to discharge to the river; or 2) demonstrate to the satisfaction of the city's Public Works department that the existing storm water system has adequate pretreatment provisions; or 3) revise /expand/modify the existing storm drainage facilities to provide adequate pretreatment. c (2) — Best Management Practices must be followed to ensure that no construction debris enters the storm drainage system. All impacts related to construction debris will be mitigated as part of the construction permit. d -- The applicant is in the process of conducting a detailed investigation of the entire storm system. The mitigation measures to address runoff water impacts shall be identified after the investigation of the existing storm system is complete. To mitigate any adverse impacts associated with this proposal, the applicant shall either 1) provide pretreatment of stormwater prior to discharge to the river; or 2) demonstrate to the satisfaction of the city's Public Works department that the existing storm water system has adequate pretreatment provisions; or 3) revise /expand/modify the existing storm drainage facilities to provide adequate pretreatment. 4. Plants: a -d -- Concur with checklist. 5. Animals: a —The following have been observed on or near the site: Birds- Bald eagle, Water Fowl Mammals - River Otter Fish- Chinook, Cho, Chum, Steelhead, and Bull Trout b— Chinook, Cho, Chum, Steelhead, Bald Eagle and Bull Trout are threatened species observed near the site. c— Chinook, Cho, Chum, Steelhead and Bull Trout also use river for migration route and rearing. d – The proposal is to demolish the existing buildings and use the area for parking. No vegetation is proposed to be removed. A portion of the buildings that will be demolished are within 200 feet of the mean high water mark, however no work is proposed along the river bank, therefore there are no impacts to the wildlife that need to be mitigated. 6. Energy and Natural Resources: a -c -- Concur with checklist. 7. Environmental Health: a – Concur with checklist. a(1)- a(2)— Concur with checklist. b (1) -- b(2) -b (3) –The project must meet City of Tukwila noise ordinance requirements. Compliance with applicable local, state and federal noise regulations will mitigate any potential adverse noise impacts, associated with the project. 8. Land and Shoreline Use: a -1 -- Concur with checklist. 9. Housing: a -c -- Concur with checklist. 10. Aesthetics: a- c— Concur with checklist. 11. Light and Glare: a -d -- Concur with checklist. 12. Recreation: a -c – Concur with checklist. 13. Historic and Cultural Preservation: a -c -- Concur with checklist. 14. Transportation: a- e— Concur with checklist. f -The proposed automobile auction use is estimated to generate 350 daily trips, 49 AM peak and 49 PM peak hour trips. g -It is estimated that the proposed automobile auction use will generate fewer daily, AM peak and PM peak hour trips than the former PACCAR site. 15. Public Services: a -b -- Concur with checklist. 16. Utilities: a -b -- Concur with checklist. VI. CONCLUSION AND PROPOSED MITIGATION The proposal can be found to not have a probable significant adverse impact on the environment and an environmental impact statement should not be required if the following mitigation measures are implemented: Applicant shall either 1) provide pretreatment of >tormwater prior to discharge to the river; or 2) demonstrate to the satisfaction of the city's Public Works department that the existing storm water system has adequate pretreatment provisions; or 3) revise /expand/modify the existing storm drainage facilities to provide adequate pretreatment. Pursuant to WAC 197 -11 -350, a Mitigated Determination of Nonsignificance (MDNS) should be issued for this project. This determination is based on impacts identified within the environmental checklist, attachments, and the above "Final Staff Evaluation for Application No. E04- 014 ", and is supported by plans, policies and regulations formally adopted by the city of Tukwila for the exercise of substantive authority under SEPA to approve, condition, or deny proposed actions. Prepared by: Minnie Dhaliwal, Senior Planner Date: August 13, 2004 STATE OF WASHINGTON DEPARTMENT OF ECOLOGY itreo Northwest Regional Office • 3190 160th Avenue SE • Bellevue, Washington 98008 -5452 • (425) 649 -7000 F4,i, August 30, 2007 Mr. Jay Grubb Barghausen Engineers for Auto Insurance Auction 18215 72nd Avenue South Kent, WA 98032 Dear Mr. Grubb: Re: I certify that I mailed a copy of this document to the persons and addresses listed herein, postage prepaid, }}'g a receptacle for United States mail in 14),f �l e Like Washington, On v-1 City of Tukwila Permit # L070144/45— Approved Barghausen Engineers - Applicant Shoreline Substantial Development Permit # - 2007 NW 30042 Purpose: Notification of Receipt of Approved Substantial Development Permit (SDP) On August 23, 2007, the Department of Ecology received notice that the City of Tukwila approved your application for an SDP. Your permit is for constructing water quality improvements including storm water pretreatment facilities within shoreline jurisdiction of the Duwamish River. By law, local governments must review all SDPs for compliance with the following: • The Shoreline Management Act (Chapter 90.58 RCW) • Ecology's Substantial Development Permit approval criteria (Chapter 173 -27 -150 WAC) • The City of Tukwila Local Shoreline Master Program Local governments, after reviewing the SDP for compliance, are required to submit the SDPs to Ecology for filing. Your approved SDP has been received and filed by Ecology. What Happens Next? Before you begin activities authorized by this permit, the law requires you to wait at least 21 days from the date we received the decision letter from the City of Tukwila on August 23, 2007. This waiting period allows anyone who (including you) disagrees with any aspect of this permit, Mr. Jay Grubb August 30, 2007 Page 2 of 2 to appeal the decision to the state Shorelines Hearings Board. You must wait for the conclusion of an appeal before you can begin the activities authorized by this permit. If no appeal' is submitted you may begin activities any time after September 13, 2007. The Shorelines .Hearings Board will notify you by letter if they receive an appeal. We recommend, however, you contact the Shorelines Hearings Board before you begin permit activities to ensure no appeal has been received. They can be reached at (360) 459 -6327 or http: / /www.eho.wa. govBoards /SHB.asp. Hum want to appeal this decision, you can find appeal instructions (Chapter 461 -08 WAC) at the Shorelines Hearings Board website above. They are also posted on the website of the Washington State Legislature at: http: / /apps.leg.wa.gov /wac. Other federal, state and local permits may be required in addition to this shoreline permit. If this permit is NOT appealed, this, letter constitutes the Department of Ecology's final notification of action on this permit. If you have any questions about this letter, please contact me at (425) 649 -4253. Sincerely, /; i Adr ,/ • avid Pater, Shorelands Specialist Shorelands and Environmental Assistance Program DP:cja cc: Minnie Dhaliwal, City of Tukwila Community Development Aug. 1. 2007 2:12PM Northwest Regional Uttice •&SUFIGTOU SWF E CA6iti6TG Y DATE: luo. S)UL r. I NORTHWEST REGIONAL OF Facsimile Cover Sheet TIME: Number of Pages: Plus Cover Sheet TO: • ---3766L, Aik--( cer Peua G_Afr-,7 FAX # - FROM: PitAAA(K, e'ine,r-, A - (O47Z4EcnoN: PHONE: Department of Ecology Northwest Regional Office 3190- 160tb Avenue S.E. Bellevue, WA 98008-5452 Phone: (425) 649-7000 • Fax: (425) 649 -7098 COMMENTS: icy Aug. 1. 2007 2:12PM Northwest Regional Office IVO. �DVL r. L • STATE OF WASHINGTON DEPARTMENT OF ECOLOGY Northwest Regional Office • 3190 160th Avenue SE • Bellevue, Washington 98008 -5452 • (425) 649.7000 July 31, 2007 Mr. Steve Tibble Insurance Auto Auctions, Inc. Two Westbrook Corporate Center, Suite 500 Westchester, IL 60154 Subject: Storm Drainage and Water Quality Improvements Plan. for Insurance Auto Auction Inc. at 8801 E Marginal Way S, Tukwila, WA Dear Mr. Tibble: This letter addresses the Storm Drainage and Water Quality Improvements Plan that was submitted to Department of Ecology (Ecology) for the proposed Water Quality Improvements at the Insurance Auto Auction Inc facilities located at 8801 East Marginal Way South, in Tukwila, Washington. The Plan was prepared by Barghausen Consulting Engineers, Inc and received by Ecology on July 23, 2007. This letter does not address the proposed Sampling Protocol (AMEC July 9, 2007) nor the • proposed Stockpile Sampling Protocol (AMEC July 20, 2007) and comments for these two documents will be sent under separate letter. The proposed Water Quality Improvements have been revised compared to the plans received March 30, 2007. The revisions include pretreatment with two Vortechs systems with one located at the northwest at the North Outfall #1 and one located at the southwest at the South Outfall #3, The improvements are specific to the 8801 site and do not include the existing system at the Outfall #4 located at the former Rhone - Poulenc site at 9227 East Marginal Way South. Ecology does not approve specific Water Quality Improvements (WQI) and defers approval to the City and in this case to the City of Tukwila Public Works. Ecology does require the WQI to be in compliance with your permit and to achieve the discharge requirements listed in the Industrial Stormwater General Discharge Permit as modified by Ecology letter April 27, 2007. Comments 1. Site logistics and coordination of trenching, excavation, construction, testing, temporary soil stockpiling, and off -site soil disposal are not described and will require coordination. 2. Figure C -1 Construction Notes 15. lists that temporary stockpiles will be covered. Notes need to be expanded to include Best Management Practices to be implemented with tarping, wind, rain and storm contxol with appropriate safety measures. If WQI construction disturbs more than one acre and discharges to surface waters, then this work will require a Construction Stormwater General Permit. For information contact the Ecology web page or contact Elaine Worthen at Ecology headquarters at ewor461@ecy.wa.gov or by telephone at Aug. 1. 2007 2:12PM Northwest Kegionai UTTice ro.33VL r. 3 Mr. Steve Tibble, Insurance Auto Auctions, Inc. Storm Drainage and Water Quality Improvements Plan July 31, 2007, page 2 3. Figure C -1 Construction Notes 8. Recommends using soil sterilization (weed killer) to be applied in areas to be paved. In this case since there is little vegetation, site was paved and will be re- paved, and the site is located in close proximity to the Lower Duwamish Waterway, there is little need for soil sterilization and there is a possible risk of migration of soil sterilization (weed killer) to the groundwater and waterway. Ecology's estimate is that soil sterilization is not warranted, and recommends no soil sterilization. If soil sterilization is used, it must be applied following label requirements. 4. Figure C -3 first general note lists that shoring and dewatering of excavation are required. Ecology should review the dewatering plan for compliance with Model Toxics Control (MICA) requirements. 5. Figure C -5 General Notes 6. Testing, temporary storage, and disposal of excavated soils should reference the Stockpile Sampling Protocol and see Ecology comments in separate letter. 6. Figure C -5 General Notes 8. Details minimum requirements for unexpected storm event and needs to detail Best Management Practices since this site is located in close proximity to the • waterway. 7. Figure C -5 General Notes 10 Cleaning all catch basins and conveyance lines require compliance with MTCA and Ecology recommends that the consultant discuss the specific tasks to conduct this work with Ecology to confirm compliance with MTCA requirements. 8. Figure C -5 City of Tukwila Erosion Control Notes 9 describes the monitoring and removal of sediment deposition resulting from project work. Ecology recommends that the consultant discuss the specific tasks to conduct this work with Ecology to confirm compliance with MTCA requirements, and Construction Stormwater General Permit, if applicable. This completes our comments. If you have any questions about the WQI or would like to discuss this information, please call Ecology's site manager, Maura O'Brien at (425) 649 -7249 or send an email to mobr461@ecy.wa.gov Sincerely, i Sunny Becker, P.E. Professional Engineer Toxics Cleanup Program Maura S. 'Brien, PG/HG #869 Professional Geologist/Hydrogeologist Toxics Cleanup Program cc Mark Barbieri, Washington Holdings LLC Eric Buckler, Paccar Kris Flint, EPA GHA sG <T1 'G ENGt$���y Minnie Dhaliwal City of Tukwila 6200 Southcenter Boulevard Tukwila, WA 98188 CIVIL ENGINEERING, LAND PLANNING, SURVEYING, ENVIRONMENTAL SERVICES July 25, 2007 COURIER DELIVERY RE: Storm Drainage and Water Quality Improvement Plans Insurance Auto Auctions, Inc. 8801 East Marginal Way South, Tukwila, Washington L07 -036 Our Job No. 11419 Dear Minnie: RECEIVED CITY r`F TUK'NIE.A IJUL 2 6 2007 PERMUI i;E(d"c`( fi As a follow -up to our conversation today, I am submitting four copies of the revised Storm Drainage and Water Quality Improvement Plans for the project referenced above. Based on input that we have received from the Washington State Department of Ecology, as well as the City of Tukwila, my client, Insurance Auto Auctions, Inc., is voluntarily incorporating water quality improvements that include pre- treatment, followed by a stormfilter for primary treatment, at both the north and south outfalls on the property. Also enclosed with this transmittal are four copies of the revised stormwater report. The current design proposes all improvements within a 200 -foot setback; however, like the original application, no work will occur within the waterway. By reviewing the enclosed, you will note that additional work is being proposed within the 200 -foot shoreline setback. The original proposal included only a portion of storm system improvements, consisting of the pre- treatment system on the south outfall. Please review these plans at your earliest possible convenience. As you are aware, it is our client's intent to complete these improvements during the summer of this year. Should you have questions or need additional information, please contact me at this office. Thank you for your assistance. Respectfully, Jay S. Grubb, P.E. Vice President JSG /ath 11419c.025.doc enc: As Noted cc: Joanna Spencer, City of Tukwila Steve Tibble, Insurance Auto Auctions, Inc. Eric Buckler, Paccar Mark Barbieri, Washington Real Estate Holdings, LLC 18215 72ND AVENUE SOUTH KENT, WA 98032 (425) 251 -6222 (425) 251 -8782 FAX BRANCH OFFICES • OLYMPIA, WA • TACOMA, WA • SACRAMENTO, CA • TEMECULA, CA www.barghausen.com 07- 06 -'07 15:02 FROM - publicworks /dcd 2064313665 T -741 P003/003 F -254 City of Tukwila Department of Community Development 6300 Southcenter Boulevard, Suite #100 Tukwila, Washington 98188 Phone: 206-431-3670 Fax: 206- 431 -3665 Web site: ht4: / /www.citukwila.wa.us RECEIVED 1l.A JUL 2 6 2001 PERMIT CENTER Revision submittals must be submitted in person at the Permit Center. Revisions will not be accepted through the mail, fax, etc. Date: 74'574.7 Plan Check/Permit Number: L 0 1- 03 G [] Response to Incomplete Letter # (1 Response to Correction Letter # ❑ Revision # after Permit is Issued ❑ Revision requested by a City Building Inspector or Plans Examiner r��•�., Project Name: OR to rt NeA.A J Ado Au-v' ''o Project Address: 9$0 .as/ /ifio$ %' / Adele Ski / /%J Contact Person: 4.,Xy 6/d de' Phone Number: yZ.f . Z 1X 6ZZZ Summary of Revision: • o'e .t ..0I/Jt4i. ;1■0 , ftederol. ., eP , .6o #if 4..,/r4 /4f .52' # l' Sheet Number(s): "Cloud" or highlight all areas of revision including date of revision Received at the City of Tukwila Permit Center by: ❑ Entered in Permits Plus on \applications orms- applications on line evision subm Craned: 8 -13 -2004 Revised: June 8, 2007 City of Tukwila Steven M. Mullet, Mayor Department of Community Development Steve Lancaster, Director Jay S. Grubb 18215 72nd Avenue South Kent WA 98032 Re: Shoreline Substantial Development Application for water quality improvements at Insurance Auto Auction; File Number -L07 -036. Dear Mr. Grubb: The Department of Community Development received your shoreline application on May 29, 2007 to do the water quality improvements at the Insurance Auto Auction site. Based on a review of your submittal relative to those requirements as set out in the Complete Application Checklists for Shoreline Permit, your application is deemed complete. Pursuant to Tukwila Municipal Code, a notice of application must be distributed within 14 days of determination of completeness. The city will coordinate with Fast Signs to post the site and also mail the notice to all property owners /tenants within 500 feet of the property. At this time your applications have been routed to different departments for their code related review. This determination of complete application does not preclude the City to require that you submit additional plans or information, if such information is necessary to further review the application and ensure that the project meets the substantive requirements of Tukwila Municipal Code. If you have any questions, you can reach me at 206 - 431 -3685. Sipcerely, Minnie Dhaliwal Senior Planner 6300 Snuthcenter Boulevard. Suite #100 • Tukwila. Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 W%SD6ENGTOt'' BIOLDusoas May 30, 2007 Ms. Maura O'Brien, PG/HG #869 Professional Geologist/Hydrogeologist and Site Manager Toxics Cleanup Program Washington State Department of Ecology Northwest Regional Office 3190 160th Ave SE Seattle, WA 98008 RFCEntEn MAY 31 1007 cuivimu DEva RE: Coordination and Creation of Work Plan for Proposed Stormwater and Water Quality Improvements for IAA at 8801 E Marginal Way South Site Dear Maura: Thank you for a productive meeting on May 10, 2007, your subsequent detailed meeting summary, and your letter of May 23, 2007 to Washington Real Estate Holdings and Paccar. Paccar, Washington Holdings and IAA agree with your recommendation to enter into an agreement for site coordination for the implementation of the proposed improvements. The three parties conducted a conference call on May 23, 2007 to create a framework for expeditiously performing the proposed stormwater improvements. IAA, Paccar and Washington Holdings are communicating well, and have developed a strategy which addresses your concerns and which is consistent with your recommendations. We have determined the most effective way to proceed is through creation of a work plan. The work plan would be submitted with appropriate signatures from Washington Holdings, IAA, and PACCAR. The plan would stipulate site logistics, sampling protocols, material handling, and protocol for identification and handling of "contingent" areas of concerns. Also included will be a segment on protocol for composite sampling of excavated materials for material handling and disposal. PACCAR will further submit a plan for sampling from the excavation side -walls and bottom with subsequent analysis. IAA, Paccar and Washington Holdings have scheduled a work plan development meeting for June 7t. We would appreciate the opportunity to conduct a call with you after our June 7, 2007 work plan development meeting, so we may bring you up to speed on our progress in this regard and discuss specific timelines and deliverables. At this point, we feel that a realistic timeframe for submission of the work plan to Ecology would be the first week of July. This time schedule would also be consistent with submissions and the schedules discussed in our May 10th meeting. Washington Real Estate Holdings, LLC 600 University Street, Suite 2820 Seattle, WA 98101 Ph: (206) 613 -5300 Fax: (206) 613 -5301 WASHINGTON HOLDINGS Ms. Maura O'Brien May 29, 2007 Page 2 Again, thank you for your communication. Washington Holdings, Paccar and IAA share the objective of the City of Tukwila, Ecology and the EPA to work diligently to successfully complete the proposed stormwater improvements in the dry season of 2007. We look forward to communicating with you after our meeting on June 7t. Once you have returned, we can coordinate a mutually agreeable time to conduct a brief phone meeting. In the meantime, please contact me if you have any questions. Sincerely, C Mark E. B : bieri Executive ire President MEB cc: Steve Tibble, IAAI Eric Buckler, Paccar Minnie Dhaliwal and Joanna Spencer, City of Tukwila play. [J. [VV! 7; 77r1Y1 IVor1nwes1 neglond1 VII Ice WASHINGTON STATE DEPARTMENT OF ECOLOGY DATE: TIME: • 110. 109.V F. 1 /9t NORTHWEST REGIONAL OFFICEMAY 2 4 1001 Facsimile Cover Sheet • . • . Li.; t,I,JN, ry . DEyELOP�� Number of pages: TO: FROM: • • Plus Cover Sheet atra.P-e_. Rabb) /Ls addge, 4-ect-1/ M-&t4- \i0p -14 4-iqcoo+ MaorOkk PHONE: SECTION: Department of Ecology• Northwest Regional Office 3190 — 160th Avenue SE Bellevue, WA 98008 -5452 Phone: 425449 -7000 Fax: 425- 649 -7098 COMMENTS: iviay. LJ. LUU/ 7:7yrivi iuor1nweS1 Regional VI I ice iro. 1o`ty r. Li 9. STATE OF WASHINGTON DEPARTMENT OF ECOLOGY • Northwest Regional Office • 3190 160th Avenue SE • Bellevue, Washington 98008.5452 • (425) 649 -7000 May 23, 2007 Ms. Carole Robbins, and Mr. Eric Buckler PACCAR Inc. 777 —106h Avenue NE Bellevue, WA 98004 And Mr. Mark Barbieri Washington Holdings, LLC 600 University Street, Suite 2820 Seattle, WA 98101 Dear Ms. Robbins and Mt Buckler and Mr. Barbieri: Subject: Site Coordination and Compliance Monitoring Tasks for the Proposed Stormwater and Water Quality Improvements for IAA' at 8801 E Marginal Way South Site, Washington Holdings and former Paccar Kenworth Truck Site, Tukwila, WA Dear Ms Carole Robbins, Mr. Eric Buckler, and Mr. Mark Barbieri: Insurance Auto Auctions Inc is proposing to conduct storm drainage and water quality improvements (Improvements) at the 8801 E Marginal Way South site this dry season as an . independent action under our state's cleanup regulations, the Model Toxics Control Act. The specific regulation, WAC 173- 340 - 515(2) allows independent remedial actions to take place, even on sites where consent decree negotiations have been initiated, as long as they do not foreclose or preempt further remedial actions and Ecology has prior notice of the independent action and does not object. This letter is a request to document 'the prior notice and that Ecology has no objection." I am requesting for Ecology prior approval for three tasks for the proposed Improvements to go forward as independent action: • 1. A signed agreement for site coordination for the implementation of the proposed Improvements including pre, during and post sampling; temporary storage of excavated soils; testing of excavated soils for off-site disposal and/or treatment; equipment ivay. z). ivy .IVOrinvles negionai um ce • No. IO'ty r. 3 /(t' Ms. Carole Robbins, Mr. Eric Buckler, and Mr. Mark Barbieri Site Coordination and Compliance Monitoring Tasks at 8801 Site May 23, 2007, page 2 storage and site logistics; access for Ecology staff if requested; and best management practices for implementing the Improvements. 2. A procedure for a "new discovery" if new contamination is discovered during implementation of the Improvements. I estimate that this procedure will have two parts: a. — Additional sampling at the sidewalls and a proposed procedure, such as flagging the location for Paccar to address cleanup at a later date. b. — Additional sampling at the base and a proposed procedure, such as additional excavation to remove contamination as access to this location would be restricted due to the installation of the Improvements thus restricting access for Paccar to address cleanup at a later date. 3. 'A Compliance Monitoring Plan (CMP) for soils for this Improvement task. The CMP needs to include purpose, sampling methodology, procedures, laboratory analyses, QA/QC,. validation procedures, and reporting and electronic copy in EIM format for laboratory results. See MTCA for compliance monitoring WAC 173- 340 -410 and sampling and analysis plans WAC 173 -340 -820. Task 1 is an agreement for site logistics coordination such as locations to temporarily stockpile excavated soils and scheduling site work such at coordination with auction and vehicle removal dates. I request for Ecology prior approval from Paccar and Washington Holdings for site coordination with IAAI and their consultants for these and associated tasks for the proposed Improvements. This may be a letter of agreement signed by Paccar, Washington Holdings and IAAI authorizing IAAI to conduct this work with the attached work plan. Or it may be a statement of agreement for the three parties confirming agreement on the layout, implementation and timing for this work. One question may be the proposed excavation locations and routing of Improvement work in and around the daily occurrence of IAAI site functions. Another factor is worker safety and work around and temporary soil stockpiled locations as consultant waits for laboratory confirmation for soil sample results. Another question may be not scheduling site work during auction and vehicle removal dates. Since the Improvements are an independent action, Ecology needs confirmation that you have a signed agreed upon "site coordination strategy ". Task 2 is for a defined procedure should and if new contamination is discovered during implementation of the Improvements especially if the new contamination is located below the proposed Improvements restricting access in the future if this contamination is left in place. Task 3 is a mini Compliance Monitoring Plan specific to soils for the Improvement task. No schedule has been worked out for these tasks yet these tasks will need to be approved by Ecology prior to this work being implemented. The Improvement work is estimated to be conducted this dry season, July 1 to October 1, 2007 and is proposed to begin in August. I suggest that Task 1 and 2 be submitted to Ecology on or about June 15 and Task 3 be submitted on or about June 29. 'nay. LJ. LVVi o uvrvi iuor1nwes1 Reg'onai vi 1 ice IVO. 109.v r. '+/'t Ms. Carole Robbins, Mr. Eric Buckler, and Mr. Mark Barbieri - Site Coordination and Compliance Monitoring Tasks at 8801 Site May 23, 2007, page 3 Note, I will be out of town May 24 to June 5 and return to the office June 6th and then let's confirm a schedule. If you need more information, please leave a telephone message at the Northwest Regional Office at 425 -649 -7249 or call my cell at 206 - 459 -1495. Thank you and I look forward to working with you on complete these tasks and the Improvements. Sincerely, Maura S O'Brien PG/HG #869 Professional Gologist/Hydrogeologist and Site Manager Toxics Cleanup Program cc Steve Tibble, IAAI Jay Grubb, Barghausen Consulting Engineers Inc Minnie Dahliwal and Joanna Spencer, City of Tukwila, Kris Flint, EPA Ms. Minnie Dhaliwal, Senior Planner City of Tukwila Public Works Department 6300 Southcenter Boulevard Tukwila, WA 98188 CIVIL ENGINEERING, LAND PLANNING, SURVEYING, ENVIRONMENTAL SERVICES May 29, 2007 RE: Shoreline Permit Application Insurance Auto Auctions, Inc. (IAAI) 8801 East Marginal Way South, Tukwila, Washington Permit No. D07 -237 / Our Job No. 11419 Dear Ms. Dhaliwal: RECEIVE MAY292001 cowrrrnuNrr� OENELOP�� On behalf of our client, Insurance Auto Auctions, Inc. (IAAI), Barghausen Consulting Engineers Inc. is submitting a Shoreline Permit application for the existing facility at the location referenced above. The approval of the Shoreline Permit application will allow Insurance Auto Auctions to install the required stormwater pre- treatment facilities within the shoreline setback at this property. Enclosed for your review are the following items: 1. One Complete Application Checklist 2. Five copies of the Shoreline Permit application 3. Five sets of plans including the following: i. Shoreline Site Plan ii. Cross - Sections iii. Civil Plans 4. Five copies of the Storm Drainage Report prepared by Barghausen Consulting Engineers, Inc. dated May 18, 2007 5. One set of all plans reduced to 11 by 17 inches 6. One check in the amount of $2,340 made payable to the City of Tukwila to cover the Application Fee 7. One check in the amount of $365 made payable to Fast Signs Tukwila to cover the public notice board fee 8. One check in the amount of $100 made payable to the City of Tukwila to cover the mailing label fee 9. One copy of the Vicinity Map with site location 18215 72ND AVENUE SOUTH KENT, WA 98032 (425) 251 -6222 (425) 251 -8782 FAX BRANCH OFFICES • OLYMPIA, WA • TACOMA, WA • SACRAMENTO, CA • TEMECULA, CA www.barghausen.com Ms. Minnie Dhaliwal, Senior Planner City of Tukwila Public Works Department -2- May 29, 2007 10. One copy of the written discussion of project consistency with decision criteria 11. One Affidavit of Ownership and Hold Harmless Permission to Enter the Property executed by the owner of the property The proposed changes to the existing drainage control system include removal /replacement of pavement, installation of one catch basin, installation of approximately 120 lineal feet of 8 -inch storm drain pipe, and placement of an underground Vortechs pre- treatment unit in line to the existing conveyance pipe and outfall. This proposed work augments the existing drainage control system and does not include any other development activities or expansion of facility operations at this location. The work area is fully developed, serving as a paved yard for the temporary storage of automobiles for auctioning. The paved yard area is equipped with a stormwater collection and conveyance system, which has been in place for many years. It consists of sloped paved surfaces, catch basins, and underground conveyance pipe and a piped discharge to the Duwamish Waterway (drainage control system). The system requires maintenance and repair to improve its water quality capability. Finally, it should be noted that the shoreline is a manmade bulkhead and not a native shoreline habitat. No work will occur on the water side of the shoreline; therefore, these improvements and associated work do not materially interfere with normal public use of the water or shoreline of the state. Please review this request at your earliest convenience and notify us of your concurrence. Your assistance is appreciated. Respectfully, Jay S. Grubb, P.E. Vice President MAI/ath 1 1419c.019.doc cc: Ms. Joanna Spencer, City of Tukwila Mr. Steve Tibble, Insurance Auto Auctions, Inc. Ms. Maura O'Brien, Washington State Department of Ecology Mr. Greg Stegman, Washington State Department of Ecology BCE JOB NO. 11419 CITY OF TUKWILA MAY AJ Department of Community DevelopmenbEVE oProtNT SHORELINE 6300 Southcenter Boulevard, Tukwila, WA 98188 PERMIT Telephone: (206) 431 -3670 FAX (206) 431 -3665 E- mail.: tukplan @ci.tukwila.wa.us APPLICATION FOR STAFF USE ONLY Permits Plus Type: P -SHORE Planner: File Number: LO `1 — 0 ?j it, Application Complete (Date: ) Project File Number: Application Incomplete (Date: ) Other File Numbers: NAME OF PROJECT/DEVELOPMENT: Oil Water Separator installation for Insurance Auto Auctions LOCATION OF PROJECT/DEVELOPMENT: Give street address or, if vacant, indicate lot(s), block and subdivision, access street, and nearest intersection. 8801 East Marginal Way South, Tukwila, WA 98108 LIST ALL TAX LOT NUMBERS (this information may be found on your tax statement). 5422600060 DEVELOPMENT COORDINATOR : The individual who: • has decision making authority on behalf of the owner /applicant in meetings with City staff, • has full responsibility for identifying and satisfying all relevant and sometimes overlapping development standards, and • is the primary contact with the City, to whom all notices and reports will be sent. Name: Jay S. Grubb Address: 18215 72nd Avenue South, Kent, WA 98032 Phone: (425) 251 -6222 FAX: (425) 251 -8782 E -mail: jgrubb@barghausen.com Signature: , Date: 3AZ /a7 P1Plvming Forms Applic iions1Shore- l2- 06,doc Demobs 4, 2006 PROJECT DESCRIPTION AND ANALYSIS SECTION PECERfED f ;tier 2 G Li, COiviMUNfTY DEVELOPMENT 11. A written discussion of project consistency with decision criteria. (See Application) Check with a planner if you are unsure what criteria apply to your project. K. C. C. 25.16.030 General Requirements: A. Nonwater related development and residential development shall not be permitted waterward of the ordinary high water mark. Response: This is an existing development. The proposed stormwater pre- treatment facilities are required as part of the condition of approval for this project and will not occur waterward of the ordinary high water mark. B. Except in those cases when the height requirements of the underlying zones are most restrictive, no structure shall exceed a height of thirty-five fee above average grade level. This requirement may be modified if the view of a substantial number of residences will not be obstructed, if permitted by applicable provisions of the underlying zoning, and if the proposed development is agricultural, water related or water dependent. Response: Not applicable to this project. No aboveground structures are proposed. The scope of work for this proposal is the installation of a pre - treatment facility for stormwater runoff. C. All development shall be required to provide adequate surface water retention and sedimentation facilities during the construction period. Response: The site is fully developed. This project is the installation of stormwater pre- treatment facility as required. D. Development shall maintain the first fifty feet of property abutting a natural environment as required open space. Response: Not applicable to this project. The scope of work for this proposal is the installation of a pre- treatment facility for stormwater runoff. E. Parking facilities except parking associated with detached single-family and agricultural development shall conform to the following minimum conditions: 1. Parking areas serving a water related or nonwater related use must be located beneath or upland of the development which the parking area serves. Response: The parking area is an existing paved parking area. No changes are proposed to the location of the parking area as a result of the installation of the pre- treatment facility. 2. Any outdoor parking area perimiter, excluding entrances and exits, must be maintained as a planting area with a minimum width of five feet. Response: The parking area perimeter is existing. No changes are proposed to the parking area perimeter as a result of the installation of the pre- treatment facility. 3. One live tree with a minimum height of four feet shall be required for each thirty linear feet of planting area. Response: The planting area will not change as a result of the installation of the pre- treatment facility. 4. One live shrub of one - gallon container size or larger shall be required for each sixty linear inches of planting area. Response: The planting area will not change as a result of the installation of the pre- treatment facility. 5. Additional perimeter and interior landscaping of parking areas may be required, at the discretion of the Director, when it is necessary to screen parking areas or when large parking areas are proposed. Response: The parking area will not change as a result of the installation of the pre- treatment facility. F. Collection facilities to control and separate contaminants shall be required where stormwater runoff from impervious surfaces would degrade or add to the pollution of recipient waters or adjacent properties. Response: The installation includes the removal/replacement of pavement, as needed to install one catch basin, installation of approximately 120 lineal feet of 8 -inch storm drain pipe, and placement of an underground Vortechs pre - treatment unit in line to the existing conveyance pipe and outfall. This work augments the existing drainage control system. G. The regulations of this chapter have been categorized in a number of sections; regardless of the categorization of the various regulations, all development must comply with all applicable regulations. Response: We have prepared a response to both the General and Industrial Requirements Sections. H. Development proposed on shorelines of the State shall maintain setbacks, provide easements of otherwise develop the site to permit a trail to be constructed or public access to continue where: 1. There is proposed trail in the King County Trail System; or 2. Part of the site is presently being used and has historically been used for public access a. Along shorelines of the State on Lake Sammamish, no building shall be placed on lands below thirty-two and one -half feet mean sea level Response: No new development is being proposed and this project does not include changes on the Duwamish Waterway. 25.16.170 Industrial Development. A. The provisions of this chapter apply to industrial and manufacturing types of activities including ports. B. Industrial development may be permitted in the urban environment subject to the general requirements (Section 25.16.030) of this chapter, provided that: 1. The industrial activity is permitted in the underlying zone classification; Response: The installation of the pre- treatment facility will not change the use of the property. 2. The industrial activity shall utilize the best techniques in design and siting to prevent the release of contaminants into the adjoining water bodies in order to comply with the water quality standards promulgated under the provision of RCW Chapter 90.48; Response: The pre- treatment system includes the installation of one catch basin, approximately 120 lineal feet of 8 -inch storm drain pipe, and placement of an underground Vortechs pre- treatment unit in line to the existing conveyance pipe and outfall. This proposed work augments the existing drainage control system and does not include any other development activities or expansion of facility operations at this location. 3. Oxidation and waste stabilization ponds shall not be permitted within the shoreline of the state; Response: Oxidation and waste stabilization ponds are not proposed. 4. The maintenance of these provisions may be assured by requiring a performance bond of sufficient size to substantially defray the cost of a cleanup or rehabilitation effort. Response: Not applicable. C. The height limitations of the general requirements section (Section 25.16.030) of this chapter shall not apply to water dependent industrial development. Response: Not applicable to this project. The scope of work for this proposal is the installation of a pre- treatment facility for stormwater runoff. D. The provisions of this chapter shall not be construed to permit the construction of any oil port facility designed to load or unload ships 125,000 dead weight tons or larger in size. Response: Not applicable to this project. The scope of work for this proposal is the installation of a pre- treatment facility for stormwater runoff. E. Outside storage of equipment, vehicles, materials or supplies shall maintain a shoreline setback of twenty feet from the ordinary high water mark. Response: The installation of the pre- treatment system will not change the setbacks for the existing use of the site. F. Except as provided in subsection E. above, water dependent industrial development shall not be required to maintain a shoreline setback. Response: Not applicable to this project. The scope of work for this proposal is the installation of a pre- treatment facility for stormwater runoff. G. Water related industrial development shall maintain a shoreline setback of either twenty feet from the ordinary high water mark or ten feet from the edge of the floodway, whichever is greater. This shoreline setback may be reduced either to ten feet from the ordinary high water mark or to the edge of the floodway, whichever is greater, if the water related development provides limited public access or public access. Response: No new development is proposed. The existing development is not water related industrial development; however, the setbacks will not change as a result of the installation of a pre- treatment facility for stormwater runoff. H. Nonwater related industrial development shall maintain a shoreline setback of either fifty feet from the ordinary high water mark or twenty feet from the edge of the floodway, whichever is greater. This shoreline setback may be reduced either to twenty feet from the ordinary high water mark or to ten fee from the edge of the floodway, which is greater, if the nonwater related development provides limited public access. This shoreline setback may be reduced to either ten feet from the ordinary high water mark or the edge of the floodway which is greater, if the nonwater related development provides public access. Response: The setbacks will not change as a result of the installation of a pre- treatment facility. I. Piers, moorages, slips, floats and launching facilities may be permitted accessory to industrial development, provided: 1. The facility will service a water dependent or water related use; Response: Not applicable to this project. The scope of work for this proposal is the installation of a pre- treatment facility for stormwater runoff. 2. The facility does not constitute a hazard to navigation. Response: Not applicable to this project. The scope of work for this proposal is the installation of a pre- treatment facility for stormwater runoff. • 1'-60 FT SHORELINE SITE PLAN A PORTION OF THE FRANCIS MCNATT DONATION CLAIM NO. 38, IN SECTION 33, TOWNSHIP 24 NORTH, RANGE 4 EAST, W.M, IN KING COUNTY, WASHINGTON TAX LOT No. 000740.00333 44-" Boeing Company 11 e0. HG:gx: Way S. ABBSIbnt 1506.71' VICINITY MAP NTS 948 SU CHINIVN TOP Cr SW NW 93EVA1I011 - 1684 NLT (90.0 1909) 2717257 AREA OF ca•glAUCnoN EL 10P OF BAN BASE ROOD ELEVATOR 11.01 t FEET (1968 NANO) MEAN HIM WATER 080 (WW1) 891 3 FEET (1988 NAND) %/ %/ /�, / j.t7 z fr././,, A 111 SURVEY INFORMATION LEGAL DFESCRIPT1ON A PORTION OF THE FRANCIS MCNATT DOMATTON CLAW NO 35. N SECTION 33, TOWNSHIP 24 NORTH, RANGE 4 EAST. W.N., IN KING COUNTY, WASNNGTON, BONG THAT PORTION OF TRACT N0. 3 AS SHOWN ON THE PARRTON NAP FILED IN CAUSE N0. 120091, OF THE SUPERIOR COURT OF KNG COUNTY, WASHINGTON, MORE PARTICULARLY DESCRIBED AS FOLLOWS: COWENCNG ON THE WESTERLY UNE OF EAST MARGINAL WAY SOUTH, WHICH POINT • LINES 167.68 FEET SOUTH OF AN INTERSECTION WITH THE NORTH UNE OF SAID D ONATION LAND CLAW NO. 38; THENCE NORTH 67 16' 16' WEST. 1499.53 FEET TO THE EASTERLY MA8GIN OU COMMERCIAL WATERWAY N0. 1 (OUWAMISH WATERWAY); THENCE SOUTH 15' 00' CO' EAST, 456.1 FEET ALONG SAID ELY MARGIN TO A POINT; THENCE FAST 1574.72 FEET TO THE WESTERLY UNE OF SAD EAST 0*9100AL WAY SOON; THENCE NORTHERLY ALONG SAS) WESTERLY UNE AT 481 FEET, MORE OR LESS, TO THE PONT OF 8001881NG. 9)4008T THAT PORTION THEREOF CONVEYED BY MONSANTO CHDOCA. COMPANY TO GREAT NORTHERN RAILWAY COMPANY, ET Al. 81' DEED DATED MARCH 7, 1957. RECORDED UNDER KING COUNTY RECORDING N0. 4784818 ALSO A PORTION OF THE FRANCIS MCNATT DONATION CLAW N0. 38, W SECTION 33, TOWNSHIP 24 NORTH, RANGE 4 EAST, W.M., IN KING COUNTY, WASHINGTON, BONG TWAT PORTION OF TRACT 2 AS SHOWN ON THE PARTITION WP FILED N CAUSE N0. 120391, OF THE SUPERIOR COURT OF KING COUNTY, WASHINGTON, MORE PARTICULARLY DESCRIBED AS FOLLOWS CO680110NG ON THE WESTERLY UNE OF EAST MARGINAL WAY SOUTH, WHICH PONT BEARS NORTH 89' 15' 54' WEST. 2470.01 FEET ALONG THE DONATION CLAM UNE AND SOUTH 23' 40' 59' EAST. 458.77 FELT ALONG THE WESTERLY UNE OF EAST MARGINAL WAY SOUTH FROM THE INTERSECTION OF THE UNE BETWEEN THE DONATION CLAIMS OF FRANCIS 8LNATT AMID HENRY VAN AS5E1T WITH THE FAST UNE OF SECTION 33, TOWNSHIP 24 NORTH, RANGE 4 EAST. 9.M, IN KING COUNTY, WASHINGTON THENCE WEST 1574.72 FEET TO THE EASTERLY UNE OF COMMERCIAL WATERWAY NO. 1; THENCE EAST 1053.10 FEET TO A POINT MOWED HEREIN AS POINT 'A' FOR SUBSEQUENT 00TDIENCE: THENCE SOUTH 23' 02' 00' FAST, 46.03 FEET; THENCE EAST 561.38 FEET TO THE WESTERLY UNE OF FAST MARGINAL WAY SOUTH; THENCE NORTH 25 40' 59' WEST ALONG SAD WESTERLY UNE 297.03 FEET TO THE PONT OF BEGINNING. EXCEPT THAT PORTION THEREOF CONVEYED BY MONSMLIO CHEMICAL COMPANY TO GREAT NORTHERN RAILWAY COMPANY, ET AL BY DEED DATED MARCH 7, 1957 AND RECORDED UNDER TONG COUNTY RECORDING N0. 4784818. DATES OF SURVEYS FIELD SURVEYS BY BAR0IAUSEN CONSULTING ENGINEERS, INC. CONDUCTED CURING DECEMBER 1999, JAMWTY 2001, & OCTOBER 2003. AL SURVEY 410910NEN10 SHOWN AS FOUND WERE VISITED AT THAT TIME. MORIZONTAL DATUM - 13A819 OF BEARMG9 NORTH AMERICAN DITIAM OF 1927 WASHINGTON STATE PLANE COORDINATE SYSTEM - NORTH THE NONUMENIED OFFSET 004106116E OF EAST imam. YE 751408 AS North 2232'07' W.6., AS PER Bode 72. of Sum" Pops 222 KING COUNTY RECORDS 90411CAL DATUM - BASS OF EB.EVAT104t4 NAVE 1988 ORIGINAL PROJECT 801018MK FROM 1988 SURVEY 9Y BNG4NUSEN CONSULTING 090090 i5 2' BRASS DISK SURFACE MONUMENT ON EAST SIDE OF 102nd St. BRIDGE (DESTROYED) 6.141001048090 TOP OF 'PK' NAL SET ON EAST BIDE OF EAST MARGINAL WAY (SEE DRAWING) ELEVATION - 18.68 FEET 811E ADDRESS 8801 FAST MARGINAL WAY SEATTLE, WA 98109 TAX ACCOUNT NUMBER 542260- 0060 -03 R_000 ',FORMATION FEDERAL EMERGENCY MANAGEMENT AGENCY ( INFORMATION: 41869 (FLOOD INSURANCE RATE MAP ) MAP No. 53033P.845 F PANE 645 OF 1725, DATED MAY 16, 1995 MOST OF THE SUBJECT PROPERTY IS IN ZONE 'X' - 'AREAS DETERMINED TO BE OUTSIDE 500 -YEAR FLOODPWN' A SMALL PORTION OF THE SUBECT PROPERTY ALONG THE WEST BOUNDARY IS IN ZONE 'AE' - SPECIAL FLOOD HALM MFRS INDUDTED BY 100 -YEAR FLOOD BASE FLOW ELEVATIONS DETERMINED - 84 FT (1929 NOM - ADD 3.51' - 11.91 FEET (NAM) 1988 SEE ). TAY. LOT N: 543282 -0012 CONTAINER PROPERTR:S 92:9 E. Marginal Way S. T_tnllo, WA 96105 CONTACTS ca4 PROJECT MANAGER: DESIGN ENGINEIR OWNER: STEVE 116BLE PN 647- 340 -6622 STIBBIEO4W.COM INSURANCE AUTO AUCTIONS 2 WFSTBROOK CORPORATE CENTER SURE 500 WESTCfESTER, 0. 60154 JAY GRUBS /CHARLES BULL 0/0 BM0IMUSEN CONSUME; DICKERS 18215 72ND AVE SOUTH N07RT WA 98032 PH 425 941 -2750 JGR0900BARGRWSEN.COM MERRILL CREEK HOLDINGS LLC 0/0 BEN MAROOLES WASHINGTON REAL ESTATE HOLDINGS. 1.1.0 600 UNIVERSITY STREET, SUITE 2820 SEATTLE WA 98101 / / / 588511887 I FGFND (771 r 'ii.'i MAW CONCRETE won MN DRONE 49E -6 G- GAS IX - TNt)- TELEPHONE 190E1OOIW0 -5(UG) ROWER 166EIiCAOUND 110 1) POWER 06111FJD X OWN MKKF010E 22 ......... EMTOIG COMAS RECEtVED Edw 2 f; COMMUNITY DEVELOPMENT 1 3 a A 0) W Z 0 o 3 g c ad 2 r 1 81 gl�� 1I 1 a N FlIrP. \I IOW, \11419 \ engineering \I 419-0 dug Dote/mne5 /I4/2ro7 Y-60 FT SHORELINE SITE PLAN SECTIONS A PORTION OF THE FRANCIS MCNATT DONATION CLAIM NO. 38, IN SECTION 33, TOWNSHIP 24 NORTH, RANGE 4 EAST, W.M, IN KING COUNTY, WASHINGTON OL 10R OF BIM BASE R000 ELEVATION • 1131 2 FEET (1988 1400) WEAN 100 EATER 13E (ONIR.) 831 A FEET (1988 4110) 9._�,r� 0.00 L`^" PARTIAL SITE PLAN LEGEND ASR AT COI CREIE 040£1 STORY DRAIV6E LINE —c -0— GS LW — r, Oct — 1ElERIIO1E UNDERGROUND PIUO, 11 UNDERGROUND P(OM`- 8881ER CAEREAO CHU1 180 FINE 22 ELOSf11G CORIUM 'Sr 20 10 DAIVM 000V -000 20 10 DATUM HEY 20 10 PA RI ZERT' 2+00 SECTION A 3+00 HORIZ 1' =60' VERT 1' =5' 4 +00 .-- GRADE f-EXISTING OWE TO R iTANN — r— _I- L_L — J J _ I I 1 1 I I I �/ 1 ggpoCtair TO TIE > 13 2, N .i wi R o mlm 2+00 SECTION A 3+00 HORIZ 1' =60' VERT 1' =5' 4 +00 1+00 2+00 SECTION B 3+03 HORIZ 1' =60' VERT 1' =5' EXI,'TING GRADE f0 REMAIN I''..-\1 E.. TO REMAIN — Ir _I- I — �IXI J _ / 1 1 I I 1 I �/ 1 ggpoCtair TO TIE > 13 J N 2 wi n 1+00 2+00 SECTION B 3+03 HORIZ 1' =60' VERT 1' =5' 1+00 SECTION C 2+00 3+00 HORIZ VERT "i" =5' 20 ,0 0 DAILY HEY -Q00 EXISTING GRADE 10 REMAN h's- TO REMAIN — Ir — _ — 1 — �IXI J _ 1 1 1 I I �/ 1 ggpoCtair TO TIE > 13 J N 2 wi n a N r1 ~ n al 1+00 SECTION C 2+00 3+00 HORIZ VERT "i" =5' 20 ,0 0 DAILY HEY -Q00 1+00 SECTION D 2+00 3+00 20 10 DA1Vm HEY -000 HORIZ 1 " -60' VERT 1' =5' EXISTING GRADE TO R9AAIN— NXi GRADE TO REMAIN — Ir — _ — — — �IXI J _ 1 1 1 I I ggpoCtair TO TIE > 13 J N 2 wi n N r1 1+00 SECTION D 2+00 3+00 20 10 DA1Vm HEY -000 HORIZ 1 " -60' VERT 1' =5' 1 +00 SECTION E 2+00 3+00 HORIZ 1 " -60' VERT 1' =5' 20 10 *Arum 144'V -S00 EXISTING ;RADE TO REMAIN v — 1+00 SECTION F 2+00 HORIZ 1 "-60' VERT 1' •5' 20 10 20 10 0 PAWN HEV -000 EXISTING GRADE if_ TO REMAIN 1+ '4 1+00 2+00 SECTION G HORIZ 1-=60* VERT 1 " =5' 20 10 EXISTING GRADE TO R9AAIN— — Ir — _ — — J I J _ 1 I I J J N 2 wi d 1 +00 SECTION E 2+00 3+00 HORIZ 1 " -60' VERT 1' =5' 20 10 *Arum 144'V -S00 EXISTING ;RADE TO REMAIN v — 1+00 SECTION F 2+00 HORIZ 1 "-60' VERT 1' •5' 20 10 20 10 0 PAWN HEV -000 EXISTING GRADE if_ TO REMAIN 1+ '4 1+00 2+00 SECTION G HORIZ 1-=60* VERT 1 " =5' 20 10 1 +00 SECTION H 2+00 HORIZ 1' =60' VERT 1"=5' EXISTING GRADE TO REIN N 1+00 SECTION I 2+00 3+00 HORIZ 1"=60' VERT 1' -5' 3 II w x � G 0 CV 03 0 00 03 { ^j j ^. 2 1y N N 1 N KAY W N N C OM m Ni DEVELOFIVE @do GRADE TO REMAIN --- ,-COSTING J I I I J N r1 1 +00 SECTION H 2+00 HORIZ 1' =60' VERT 1"=5' EXISTING GRADE TO REIN N 1+00 SECTION I 2+00 3+00 HORIZ 1"=60' VERT 1' -5' 3 II w x � G 0 CV 03 0 00 03 { ^j j ^. 2 1y N N 1 N KAY W N N C OM m Ni DEVELOFIVE @do 1' -100 FT Am THING F 01.71i, 10 FINER 18._1..74 STERN 1011 STATDM SEVER LIFT SLUM COVER SHEET - STORM DRAINAGE AND WATER QUALITY IMPROVEMENTS A PORTION OF THE FRANCIS MCNATT DONATION CLAIM NO. 38, IN SECiION 33, TOWNSHIP 24 NORTH, RANGE 4 EAST, W,M, IN KING COUNTY, WASHINGTON SEE SHEET 2 PLAN VIEW -9.78 DETAIL OF AREA 08- 010(51) • 129) TA •: 1011 Oa. 0007/0 -00293 The 8aeing Campany 1511 E. Marginal Way S. 46 488'61 vim 150 7)' SEE SHEET 3 PLAN VIEW DETAIL OF AREA 4-94 09-91 ME HNCIII RIT 104E NYC WA 517±904 - 1089 1111 (NP'0 1966) ESY1. REC. Op. 111715) IAN NNOE FLOOD 0111±1 N - 04 3 FEET (1929 NEW KM WATER UE- 4.5 I FEET (1929 RIND STANDARD CONSTRUCTION NOTES - CITY OF TUKWLA PRIOR TO STARTING CONSTRUCTION, CONTACT ONE -CALL (1 -800- 424 -5555) FOR UTILITY LOCATIONS. CONTACTS PROJECT MANAGER: STEVE 71881.E PH 847- 340 -6622 STIBBLEOLW.00M' INSURANCE AUTO AUCTIONS 2 WESTBROOK CORPORATE CENTER SUITE 500 WESTCHESTER IL 80154 DESIGN ENGINEER JAY GRUBB /CHARLES BULL C/0 BARQIAUSEN CONSULTING ENGINEERS 18215 72ND AVE SOUTH KM WA 98032 PH 425 941 -2750 JCRU8BOBARGFl4U0E1.0011 MERRLL CREEK HOLDINGS LLC C/0 BEN WOMB WASHINGTON REAL ESTATE HOLDINGS. LLC 800 UNIVERSITY STREET, SURE 2620 SEATTLE WA 98101 GENERAL CRY OF TUKWLA 1. LOCATIONS SOWN FOR 0510106 UTILITIES ARE APPROIOMTE 2. AT LEAST 48 HOURS BEFORE STARTING PROJECT SITE KIRK, NOTIFY THE UT911115 INSPECTOR AT 206 -433 -0179. 1. REQUEST A PUBLIC WORKS UTILITY INSPECTION IOU AT LEAST 24 HOURS IN ADVANCE BY CALLING 206- 433 -0179. 4. THE CONTRACTOR ASSUMES SOLE RESPONSBWTY FOR WORKER SAFETY. AND DAMAGE TO STRUCNRES AND IMPROVEMENTS RESULTING FROM CONSMUCI10N OPERATIONS. 5. THE CONTRACTOR SHALL HAVE THE PERMTN(S) AND COND11ON5, THE APPROVED PLANS, AID A CURRENT COPY OF C(Y OF TUKWILA DEVELOPIEM GMDELINE5 AND DESIGN AND CONSTRUCTION STANDARDS AVAILABLE AT THE JOB SITE 8. Al WORK SAL CONFORM TO THHESE APPROVED DRAWINGS ANY CHANGES FROM THEO APPROVED PINS REQUIRE PRE - APPROVAL FROM THE OWNER, 1/1E ENGINEER N4D THE CITY OF TUKWILA. ) 7. ALL METHODS AND MATERIALS SHA1 MEET CRY OF TUKWILA DEVELOPIEM GUIDELINES AND DESIGN MID CONSTRICTION STANDARDS, UNLESS OTHERWISE APPRINED BY TEE PUBLIC WORKS DIRECTOR 8. CONTRACTOR SHALL MANTAN A CURRENT SET OF RECORD DRAWINGS ON -5110. 9. CONTRACTOR SHALL PROVIDE RECORD DRAWINGS PRIOR TO PROJECT FINAL APPROVAL 10. PROVIDE TRAFFIC CONTROL AND STREET MNNTDUNCE PUN FOR PUBLIC WOR15 APPROVAL BEFORE IMPLETIENTATIDN. 11. ALL SURVEYING FOR PUBLIC FAC0IT)ES SHALL BE DONE UNDER THE DIRECTION OF A WASHINGTON LICENSED LAND SURVEYOR. VERTICAL DATUM SHALL BE NAND 1988. HORIZONTAL DARN STALL BE WASMNCIOM STATE (ORE) COORCNITES, NORM ZONE. USING RAD 83/91 SURVEY CONTROL AND TIED TO ANY TWO CITY OF TUKWILA HORIZONTAL CONTROL MONUMENTS. FOR PROJECTS WORN A FLOOD CONTROL ZONE THE PERMIREE SHALL PROVIDE CONY1SIW CJNLIIATONS TO NOVO 1929. 12. REPLACE OR RELOCATE ALL STIRS DAMAGED OR REMOVED DUE TO CONSIRUC110H 13. RETAIN, REPLACE OR RESTORE ERRING VDkTA710N IN RIGHTS-OF-WAY, EASEMENTS. AND ACCESS TRACTS. 58851 10510)0' CONSTRUCTION CiTY OF TUKWILA 1. ALL WORK PERFORMED SHALL BE PER APPROVED PLANS AND SPECIFICATXONS ONLY. THE PERMRTFE IS REQUIRED TO MAINTAIN A SET OF APPROVED PUNS, SPECIFICATIONS, AND ASSOCIATED PERNTIS ON THE JOB SRE. WORK SHALL BE PERFORMED N ACCORDANCE WITH All. FEDERAL STATE. AND LOCAL LAWS PERM1TEE SHALL APPLY FOR A REVISION FOR ANY WORM NOT ACCORDING TO THE APPROVED PLANS. PEAMRIEE/CONTRACTOR SHALL ARRANGE A PRECON518(1CI5ON CONFERENCE WITH THE CRY'S INSPECTOR(S) PRIOR TO BEGINNING ANY WORK. WORE IN ROADWAYS ALL WORN N ROADWAYS STALL MEET TIC 11 AND THE FOLLOWING: PRIOR TO ANY ACTIVITY IN CITY RIGHT -OF -WAY, THE PERAl11TEE SHALL PROVIDE THE CITY A TRAFFIC CONTROL PLAN FOR REVIEW AND APPROVAL THE TRAFFIC CONTROL PLAN SHALL INCLUDE THE LOCATION, ADDRESS AND DESCRIPTION OF TRAFFIC FLOW DURING THE WORK AND SHALL MEET IUTCD REQRREFNIS. ALL ROR( REQUNING LANE CLOSURES MUST BE BY PERMIT ONLY. FROM 111E THIRD THURSDAY N NOVEMBER TO THE FOL1DWING JANUARY 2ND, THE DIRECTOR DOES NOT ALLOW UNE CLOSURES IN THE TUKWILA URBAN CENTER FIR, PEDESTRIAN, AND VDIIC111 8 ACCESS TO BUILDONGS STALL DE MANTAIED AT ALL TIMES. EXCEPT WHEN PERMIREE HAS PEON FROM THE BUXOM OWNER AHD 111E DIRECTOR TO CLOSE AN ACCESS. ALL ROADWAYS SHALL BE KEPT FREE OF DIRT AND DEBRIS USING STREET SWEEPERS USE OF WATER TRUCKS FOR CLEANING ROADWAYS REWIRES PREAPPROVAL FROM 794E DIRECTOR. INSTALL STEEL PLATES OVER ANY TRENCH, AT ANY TIME WORK IS STOPPED AND THE TRENCH 5 LEFT OPEN. STORM DRAINAGE NOTES - CRY OF TUCWLA DS AND MATERIALS SMALL MEET CITY OF EMU DEVELOPMENT GUIDER4 S AND DESIGN AND CONSTRUCTION STANDARDS, AND THE CURRENT TONG COUNTY SURFACE WATER DESIGN MANUAL. UNLESS OTHERWISE APPROVED. 2. MARK Al STORM DRAIN INLETS WITH 'DUMP NO WASTE AND EITHER 'DRAINS TO STREWS', 'TRANS TO nuns-, OR 'DRAINS TO GROUNDWATER', AS APPLICABLE 3. Al TRENCU EXCAVATION OPERATORS SHALL MEET OR 0511(0D ALL APPLICABLE SICCING LAWS FOR TENCHES OVER 4-FEET DEEP. ALL TRENCH SAFETY SYSTEMS SHALL MEET 05HN REQUIREMENTS 4. ADJUST ALL MANHOLES. CATCH BASINS, AND VALVES IN PUBLIC RIGHTS-OF-WAY OR EASEMENTS AFTER ASPHALT PAVING CALL BEFORE YOU DIG: 1- 800 - 424 -5555 TAX LOT Ma. 512250 -0010 CONTAINER PROPERTIES 9229 E. Marginal Way 5. Tukwila, WA 98109 CONSTRUCTION NOTES f 1. ALL WORK AND EXCAVATIONS SHALL BE IN CONS0T81ANCE WITH THE WASHINGTON STATE MODEL TOXICS CONTROL ACT. CONTRACTOR 54181 IMPLEMENT A COMPLIANCE MONITORING PLAN FOR EXCAVATKN OF TRENCHES INCLUDING SNEWALIS AND BASE MATERIALS, 03NFNA LINE SURROUNDING SOL CONDITIONS AND SAFEGUARD THE NEW IMPROVEMENTS FROM CONTAMINATION. CONTRACTOR SHALL COORDINATE WORK WIT1 OTHERS PERFORMING IREMEDML ACTIONS, ROD VERIFY AND CONFIRM DESIGN COMPATIBILITY WITH RDMEDML SYSTEMS. REPORT ANY NCONSISTEMCIES N THE DESIGN TO IAA BARGHAUSER CONSULTING AND THE CITY. 2. BACRILL TRENCH EMANATIONS IN UFTS OF 8 INCHES AND COMPACT TO 95 PERCENT RELATIVE COMPACTION WITHIN 3 FEE OF PAVEMENT SLIBGRADE UNDER PAVED AREAS AND 90 PERCENT COMPACTION BELOW 3 FEET AND OFF PAVED AREAS 3. SEAN DRAINAGE PPE SNAIL BE ETTER A PC (SIR 35) WITH RUBBER GASKETS AND N ACCORDANCE WITH 4591 D 3034. B. DUCTILE IRON (DI) CONFOR41N G TO ANSI A21.51 OR AWWA 151, CL 50, WITH PUSH ON JOINTS AND RUBBER GASKETS. 4. AL PPE SHALL BE INSTALLED WITH BEDDING N ACCORpWCE WITH WSDOT SPECIFICATIONS PPE SHALL BE LAD ON A PROPERLY PREPARED FOUNDATION ACCORDING TO WSDOT SPECIFICATION. 1115 SHALL INCLUDE NECESSARY LEVELING OF 1HE TRENCH BOTTOM OR THE TOP OF TINE FOUNDATION MAETDAlS, AS WELL AS PIACEl10R AND COMPACTION W REQUIRED BEDDING MATERIAL TO UNIFORM GRADE SD THAT THE ENTIRE LENGTH OF THE PIPE WILL BE SUPPORTED ON A UNIFORMLY DDHS: 11N4DDNG BASE. I THE NATIVE MATERIAL IN THE BOTTOM OF THE TRI9401 MEETS THE REQUIREMENTS FOR -GRAVEL BACKRLL FOR PIPE SEWING, THE FIRST LIFT OF THE PIPE BEDDING' MAY BE OMITTED, PROVIDED ME MATERIAL IN TIE BOTTOM OF THE TRENCH MEETS 111E REW9EMENTS FOR 'GRAVEL BAOKf1LL FOR PPE BEDDING.' THE FIRS1 LIFT OF PIPE BEDDING MAY BE DARTED PROVIDED THE MATERIAL IN THE B0110M OF TIE TRENCH 5 1009ME0, REGRADED, /ND COMPACTED TO FORM A DENSE UNYIELDING BASE 5. ALL CATCH BASINS 94AL1 8E TYPE(0) AS SPECIFIED ON PLANS AND MEETING THE REQUIREMENTS OF THE CITY PUBLIC WORKS DEPARTMENT. 8. STANDARD LADDER STEPS SHALL BE PROVIDED IN AL CATCH BA505 /MANHOLES EXCEEDING FIVE (5) FEET IN DEPTH. 7. THE COMIC= SWt! BE RESPONS19E FOR PROTECTION/ OF AL EXSTNG =ET ES WI NN THE CONSTRUCTION AREA METIER SHOWN OR NOT SOWN OH 11E MANS. 8. SOL s9AllZATION (WEED (UM) SW/1 BE APPLIED N AREAS 10 BE PAVED KEEP 2 -F007 MDMUM 0.EAR OF MISTING AND PROPOSED WOMAN ARIAS SPRY AT 11494)119111004'S RECO /MINDED RATE TO ASSURE 3-0!01 MINNUM PEETRATION 9. PON0910 OR IIRDBA 5 ON PAVE@( ERRFDNG OE-0UM1ER INCH IN DEPTH SV4. NOT BE ACCEPTABLE AND SILL BE CORM= BY ME CONTRACTOR. 10. CONTRACTOR IS DIMONED THAT STAINED SOILS, ASBESTOS CONTNRNC MAIER81. AND SEPTIC SOUS MAY EXIST. CONTRACTOR STALL REVIEW THE SITE ASSESSMENT REPORT FOR FURTHER DESCRIPTION AND RECOMMERD9T10NS /REOMREHENTS FOR ADDRESSING THESE RENTS DURING 0EI0UTON ACTMTY. 11. GENERAL CONTRACTOR SHALL CONFIRM 009841ERING AID /0R SHORING REQUIREMENTS WITH CEDTECHNICAL ENGINEER. 12. ME EXISTING STORM SERVICE SHOWN 15 APPROXIMATE, BASED ON FEUD SURVEYS AND 'AS -DULLY RECORDS THE GENERAL CONTRACTOR STALL 'POTHOLE' THE EXISTING STORM PIPE TO VERIFY THE DIAMETER AND LOCATION L ELEVATIONS PRIOR TO CONSTRUCTION. DYE TEST MAYBE REQUIRED TO VERIFY WVITAMENA & UPSTREAM CONNECTIONS. ANY DISCREPANCES IN THE LOCATION OF THE EXISTING PIPE OR INCOMPATIBILITY OF THE 0ESIGN SHALL BE EN0IONT TO THE IMMEDIATE ATTENTION OF THE OWNERS REPRESENTATIVE AND 8ANGHAUSEN CONSULTING ENGINEERS (425 -251- 8222). .. 5B851VEIT 54285' 13. CONTACT AND COORDINATE ZEE VARIOUS UTILITY COMPANIES ON ECTIONS, REMOVALS AND RELOCATION OF 001010 SERACE DISRUPTION OF BONING SFJ 41ES TO REMAIN 91ALL BE CDORONATED W1114 OWNER. 14. CON � WORK THAT ALL NECESSARY PERMITS HAW BEEN OBTAINED PRIOR 15. TEMPORARY STOCKPILES OF CONCRETE AND ASPHALT RUBBLE GENERATED FROM DEMOLITION SHALL BE COVERED WITH TARPS, REMOVED FROM THE SITE OR OTHERWISE PROTECTED FROM WINDS IN EXCESS OF 10 MPH AND FORECAST RAIN EVENTS DEWATERNG OF EXCAVATIONS MAYBE REQUIRED. CONTRACTOR SHALL. INCLUDE ALL PROVISIONS FOR OEWATERING OF EXCAVATIONS. . 17. CONTRALTO SHALL REPLACE ALL CURB, PAVING, AND LANDSCAPING DAMAGED AS A RESULT OF CONSTRUCiiON SEOUENCE: 1. CONFIRM TINT ALL APPLCABLE CONSTRUCTION PERMITS FMVE BEEN SECURED. 2. INSURE THAT ALL NECESSARY PRECONSTRUCITON MEETINGS HAVE BEEN HELD PRIOR TO ANY CONSTRUCTION ACTIVITIES. 3. LOCATE EXSTING MITES AND INRATE COORDINATION WITH 01111Y AGENCIES. 4. FUG ALL CLEARING UMI15 FOR OD/11110N OF PAVEMENT AREAS. 5. PROTECT ALL EX STORM DRAINAGE CONVEYANCE SYSTEMS FROM SILT LADEN WATER. 6. INSTALL SAROB4G CORN SLOPE PERIMETER AT STOCKPILES, TRUER EXCAVATIONS, FILTER FABRIC SOCKS AT CATCH BASINS AND TESL MEASURES AS NEEDED TO PROTECT STORM SYSTEM FROM SILT LADEN WATERS. 6. PLUG CAR/ DISCONNECT APPROPRIATE U0U11E5 TO PREVENT SEDNDNT LADEN WATER OR DMIS FROM EMERNG DOWNSTREAM DRAINAGES 9. COVER AL AREAS TUT WILL BE UNWORNEDD FOR MORE THAN 7 DAYS DURING TE DRY SEASON AND 2 DAYS DURING ME WET SEASON. 10. UPON COMPLETION OF THE PROJECT, STABILIZE ALL DISTURBED AREAS AND 94040VE DRIP'S IF APPROPRIATE, CLEAN SERB DRAIN PIPES, DO NOT FLUSH DEER OR MEWLS DOWNSTREAM. 11. THE CONTRACTOR 51011 KEEP PARKING LOTS AND STREET CLEAN AT All TARES BY DRY SWEEPING. WASTING OF ANY TRAVELED SURFACE WILL NOT BE ALLOWED. 12. PRIOR TO OCCUPANCY, THE PERMAIEM STORM DRAINAGE SESTET/ MUST BE CLEANED OUT BY PUMPING. (DO NOT PUMP OR 05POSE 000 ANY OTHER STREAM STORM SEWER OR SANITARY SEWER SYSTEM) LEGEND IPM Oo • POWER VAULT TU AWL) POWER IEIER POWER POLE JUNCOOI BOA (95 ICED) 0MY IMI904 (AS NOTED) CATCH EOSIN (03) STORM WANGLE (SIN) WW1 SWER MANHOLE (5990 SNORT BIER CLFAVOVE MCC) OAS 1EI5R GAS VALVE WATER VALE (MI) FTE 10004T (T) WATER MOLE DOMING SPOT BEATERS IRE WATER METER SKI MONITOR WELL ASROII CONCRETE CANS W W____ WATER LINE SANTRY SWER LSE SINN mom UNE -0 0 CAS LYE - 1(w)- 10108ONE LINO QUID -0)4) POWER UNDERGROUND 4100- POWER 0409FAD -X OWN 15* 00598 ....7.... 22 DETNG CONTOURS VICINITY MAP KIS SURVEY INFORMATION LEGAL DEBCRPIION A PORTION OF THE FRANCIS KNOT DONATION CLAN N0. 3B, IN SECTION 33, TOWNSHIP 24 NORTH, RANGE 4 EAST, WY, IN KING COUNTY, WASHINGTON, BEING THAT PORTION OF TRACT N0. 3 AS SHOWN ON THE PARTITION MAR REED 94 0A115E N0. 120091, OF THE SUPERIOR COURT OF KING COUNTY, WASHINGTON. MORE PARTIWIARLY DESCRIBED AS FOLLOWS: CONLIQ0810 ON THE WESTERLY UNE OF EAST MARGINAL WAY SOUTH, WHICH PONT LINES 187.88 FEET SOUTH OF AN INTERSECTION WITH THE NORM UNE OF SAID DONATION LAND CLAN N0. 38; THENCE NORM 89' 18' 18' WEST, 1489.53 FEET TO THE EASTERLY MARGIN OF COMMERCIAL WATERWAY N0. 1 (DUWAMISH WATERWAY); THENCE 50UDi 15' 00' 00' FAST, 456.1 FEET ALONG SAID ELY MARGIN TO A PONT; THENCE FAST 1574.72 FEET TO THE WESTERLY UNE OF SAID EAST MARGINAL WAY SOUTH; THENCE NORTHERLY ALONG SAD WESTERLY UNE AT 481 FEET, MORE OR LESS, TO THE POINT OF BEGINNING. EXCEPT THAT PORTION THEREOF CONVEYED BY MONSANTO CHEMICAL OXFAM' TO GREAT NORTHERN RAILWAY COMPANY. ET AL BY D® DATED MARCH 7, 1957, RECORDED UNDER KING COUNTY RECORDING N0. 4784818. ALSO A PORTION OF THE FRANCIS MCNATT DONATOR CLAM N0. 38, N SECTION 33, TOWNSHIP 24 NORM, RANGE 4 EAST, W.M., N IOJG COUNTY, WASHINGTON, BENG THAT PORTION OF TRACT 2 AS DON ON THE PARTITION MAP FILED 94 CAUSE ND 120091, OF THE SUPERIOR COURT OF KING COUNTY, WASHINGTON, MORE PAR1CUURLY DESCRIBED AS FOLLOWS: COITADICK40 ON THE WESTERLY UNE OF EAST MARGINAL WAY SOUTH, WHICH POINT BEARS NORM BB 15' 54' WEST, 2470.01 FEET ALONG THE DONATION CLAN LINE AND SOUTH 23 40' 59' FAST, 488.77 FEET ALONG THE WESTERLY UNE OF FAST MARGINAL WAY SOUTH FROM THE INTERSECTION OF THE UNE BETWEEN THE DONATION CLAMS OF FRANCIS MCNATT AND NOM VAN AS5ELT WITH THE EAST UNE OF SECTOR 33, TONNSHIP 24 NORM, RANGE 4 FAST, W.M., 94 KING COUNTY, WASHINGTON; THENCE WEST 1574.72 FEET TO THE EASTERLY UNE OF COMMERCIAL WATERWAY N0. 1: THENCE FAST 1053.10 FEET TO A POINT DESIGNATED HEREIN AS POOR A' FOR SUBSEQUENT REFERENCE; TFIENC11 SOUTH 27 02' 00' FAST, 48.03 FEET; THENCE EAST 581.38 FEET TO ME WESTERLY UNE OF E15T MARGINAL WAY SOUTH; THENCE NORTH 27 40' 09' WEST ALONG SAID WESTERLY UNE 297.03 FEE TO THE POINT OF BECDBe94 . EXCEPT MAT PORTION THEREOF CONVEYED BY MONSANTO CHEMICAL COMPANY TO GREAT NORTHERN RAILWAY COMPANY, ET AL BY TEED DATED MARCH 7, 1957 AND RECORDED UNDER TONG COUNTY RECORDING N0. 4784818. DATES OF SURVEYS FIELD SURVEYS BY 84RGHAUSE4 CONSULTING ENGINEERS, INC. CONDUCTED DURING DECEMBER 1999, JANUARY 2001, R OCTOBER 2003. ALL SURVEY MONUMENTS SHOWN AS FOUND WERE VISITED AT THAT THE HORIZONTAL DATUM - BADS OF BEARINGS NORTH AIERRAN DATUM OF 1927 WASHINGTON STATE PLANE COORDINATE 0051EM - NORTH ZONE THE 00MALENTED OFFSET CENTERLINE OF EAST MARGINAL WAY TA10N AS North 22'32'07' INK AS PER Book 72, of Surveys, Pogo 222, KING COUNTY RECORDS. VEFMCAL DATUM - BASIS OF 8- EVA10N9 FLAW 1988 0RIG5YL PROJECT BENCHMARK FROM 1988 SURVEY BY BARGHALISEN CONSULTING DINERS 2' BRASS DISK SURFACE MANOR ON FAST SIDE OF 102nd 5L BRIDGE (DESTROYED) 811E 9BNC//1AAK TOP OF 'PK' NAIL SET ON EAST SIDE OF EAST MARGINAL WAY (SEE DRAWING) ELEVATION - 18.88 FEET SITE ADDRESS 8801 FAST MARGINAL WAY SEATTLE WA 98108 TAX ACCOUNT NUMBER 542260- 0080 -03 FLOOD 1FORIAATION FEDERAL EMERGENCY MMAOEIEHT MERCY ( INFORM9110N1 FIRM (FLOOD INSURANCE RATE MAR) MAR No. F PANG 845 OF 1725, DATED MAY 18, 1995 MOST OF RE SUBJECT PROPERTY IS IN ZONE 'X' - i1REAS DEIEB4NED TO BE OUTSIDE 500 -YEAR FLAWPIAN' A SHALL PORTION OF ME SUBJECT PROPERTY ALONG THE WEST BOUNDARY 5 N ZONE 'AE' - SPECIAL 011100 HAZARD AREAS N)0001 e- 9. FT (1929 FLOOD RASE FLOOD 3.51' - 1115 COMMUNIIY iRf DETERMDED - 8.4 FT (1929 NCw) - ADD 3s1' - 11.91 FEET (MAw 1988 SEE i 8 ce i-3 =30 g 8 <E: A .v 1 t iM RECENT INDEX OF SHEETS CI OF 3 COVER SHEET ,STORM DRAINAGE AND WATER OUALTTY 01PROV13.ENIT3 C2 OF 3 STORM DRANAOE AND WATER OUALTTY IMPROVEIVENP3 PLAN C3 OF 3 STORM DRAINAGE AND WATER OUALRY MPROVEAEN 9 PLAN NOTES AND DETAILS UTLTTY CONFLICT NOTE+ CAUiiO * THE CONTRACTOR SHALL BE RESPONSIBLE FOR VERIFYING THE LOCATION, DMENSIOM MID DEPT OF ALL EXISTING WILTIFS WHETHER SHOWN ON TIME TAMS OR NCR BY POTOIII3 THE UTILITIES AND SURVEYING THE HORIZONTAL AND worm. moor PRIOR TO CONSTRUCTION. THIS SHALL INCLUDE CALLING UTILITY LOCATE 0 1- 800 - 424 -5555 AND THEN POTHOLING ALL OF TINE D STING UTILITIES AT L00011085 OF NEW UTILITY CROSSINGS TO PHYSICALLY VERIFY WHETHER OR NOT CONFLICTS EXIST. LOCATIONS OF SAID UTILITIES AS SHOWN ON THESE FANS ARE BASED UPON THE UNVERIFIED PUBLIC INFORMATION AND NE SUBJECT 10 VARIATION. I CONFLICTS SHOULD OCCUR THE CONTRACTOR SILL CONSULT BAROTWISD4 CONSULTING EMC94ORS, INC TO RESOLVE ALL PROBID/5 PRIOR TO PROCEEDING W11IH CONSTRUCTION. CO E 6 Do■r/rmr5 /2 '/2007 5.00 PIA \11000s \l1419 \en r -3OFT LXI5111YU 41 BUILDING 1' `'�`- -uiLITr VAULT FOOTPRINT AREA= (NO PIPES) =16,560 SO.FT. 1r. BLDG. HEIGHT= 13' ABOVE F.F 1C,, N Aa RD 1b FH a /WV w /GUARD POSTS SHED :MY ,0004 CB -CM STORM DRAINAGE -WATER QUALITY IMPROVEMENT PLAN P ,1 CB-0 �� IE�S63 1 CB -F i in ['-1 Q� \ vi 61 = 44 01 -9 MONITOR WELLS TEST PITS Elf 12' DISCHARGE FROM BORING /ISAACSON; 140 FT NORM TO REIVYM J _._.1 T -ry 0IIr,9 - -- waeraq *11,S 8 2 MONITOR W LLS a -L 891.12. IE -10.02 i 1 614 -12.27 IE -10.27 - CB - CB- (66.) 814■11.92 IE -9.34 3 uc, J Ctl CS IT CONNECT Td- EXIST ---4- 6 POTHOLE d VERIFY 1 CONNECT TO EXISTING TRENCH ORNN GRAS -12.6 6: -9.60 (8') TRENCH DRAIN �WATER VAULT lTi -w /WV- w /GUARDPOSTS a 3'x3' J -BOX TO GRADE M An= INSTALL OVERFLOW 18560842 ADAPTOR AT 0051190 TRENCH DRAIN OUTLET TO EL. 12.4 -T0 ENABLE 2 YEAR FLOW DA NEW 8' DI TO TREATMENT (RL1D VERIFY LOCATION DA AND MATERWIS). 4, 24' CUP 0 0.505 * SSMH /SDMH -C I' I -F a WELL C^ 4 0 1E -9.59 (8') FH w w/G 1 CB- CB SNEET AREAS ��rmn/ Qlj U \ SDMH -B uI.c›S011 TEST �..,� (3)FPSP ARDRAIL 00 N PITS FPS '61'S INSTALL OVERFLOW 8' RISER AND ADAPTOR AT EXISTING 760408 DRAIN OUTLET TO 0.- 10.20 -10 UNABLE 2 YEAR FLOW DA NEW 8' DI TO TREATMENT (FIELD VERITY LOCATION DIA. AND MATERIALS). NW(54), E =438 (24" t,B -SS CR TYPE 1 W 009180. STRUCTURE WON /3 NEW FLO 5181.6.4.9 DETAIL 1/C -3 RIM- 12.7* MATCH EX. SOLID COVER CB- R(: 1E- 9.53 (A110 BVVC OUTLET TEE 11111 GASKETED END CAPS. 7.7' 896801 R BOTTOM ORIFICE. SOLID TOP EI v CORE DRILL d OONNECfTO EX. IE -9.71 (EX. 87 IE -9.68 (NEW 67 TFPC.. 152 LF - 12 PVC 50835 0 0.205 (1 $b+ RW =12.50t+ns MATCH FG • CONNECT TO, EX. TRENCH DRAIN E +8' ON E-6.89 CONSTRUCTION KEYNOTES O RIM -12.80 VORTE04 MODEL 9000 STORMWATER TREATMENT SYSTEM 0.5.14CF5; (2 YR FL0W0 0- 13.7 CFS 100 YR FLOW) IE -728* (MATCH EX 18' INLET) 1E- 7.18* (MATCH EX 18' OUTLET) OF 18' COUPLES ARID ADATDRS A5 NEEDED TO MATCH w119 Elf 18' cow /-8 SAWCUT AND PATCH. REPLACE *1111 LIKE HIND THICIONFSS AND MATERWS MIN 4' ASPHALT OVER r CRUSHED ROCK OH PLACE FILTER FABRIC (SOCK) UNDER ORATE FOR PROTECTION OF DOWNSTREAM CATCH BASIN/TRENCH DRAIN. 48961 100x 011 APPROVED EODAL povocl �WPpX P .PjRW 614 =1 7* n ___ ce - E-8.513 on 10 LF - 8' PVC MR35 0 1% 0046 -G RIM - 12,771 0000 N - 7.72 1 E - 7.30 1 18' CONC W 7.30 1 CONNECT NEW 8' PVY)1 A'IFIDw341 _ 1 ..........n R94 -12. 1 GUARDRAIL MATCH FD SOLID COVERT 16■8.97 (Al1) SLAB FOUNDATION 16.95 SWORD PLEA b015 • OP„n _ piAInty" �.6 6 Mc1r 08/4 TYPE 2. 54' 614 -13.0, SO5D COVER NEW FLOW CONTROL STRUM. 60859 113 DETAIL 1/C3 OVERBUILO/Swa.E EXISTING 8' 510816 1(.5.9* F10.8 VERIFY PROVIDE (2) 0511ET RISERS 8' PVC TEE (NORM) TO EXISTING DOWNSTREAM SOLID BOTTOM IE -5.9* TOP -1025 (OPEN) fi PVC OUTLET TEE (WEST) TO WATER QUALITY 16.9.58 WITH 0859M END CAPS SOLID TOP BOTTOM ORIFICE ■5.2' METER B-00(20) WiK ✓ LF MA - 8' C sop5 0 0.20%2b -Z(22) b�_ __����� - -- S8B5140I /96e�va SWITCf� c, TYPE G U A R D R A I WL 1561.97' byy (1 TCN3FG _ -- t SOUR COVER ' E- 9.27(61L) 121 GUARDRAI d .'Fm GIJARU(2AIL 1 ',-;- LOADING DOCK CB -W(9) STEPS CORE DRILL d '10 EXDI. MH MATCH EXIST. 18- CONC. W, IE -8.08 13 CB -Li SS1/11/5081 -9 CC RIM - 16.28. 18' CONC F - e.g.; 18' CONC VI - 8. 10' CONC N - 9.25, U 0 K C1 CO, 31 Ku. / .A6 v. a , N9 WA1 TAI 0 LIGHT STANDARDI w /J -BO>i CB- x(8)-/ 12' M. EA!N1 S88'51'08'F 1058.10' RL N 0 N] 00NN-C 0 ME w /GUARDRAIL 55414-C RIM - 12.97 12' CONC N - 6.07 12' CONC E - 6.04 8' CONC w - 10.17 8' CONC 5 - 8.42 1 5 3 g W I"" §i 2 A RECEIVED W;(2 A COMMUNITY DEVELOPMENT u A I u Ii I 2 81 4 El 11 I 0 W 1 EXPIRES 01 -07 -P 1 ing \11419- 0M.d.g Dote/Tne.5 /24/2007 159 P11 Scale! 1' = 1' 10005 \11419 \e STORM DRAINAGE -WATER QUALITY IMPROVEMENT PLAN 4T 2 1F - 21' PVC 35 0 18 r -io Fr EX. PARK910 2 LF - 21' PVC 17LF - 21' PVC SCR 3500.58 EK. 24' CLIP SIDf81 55MN -0 RIM - 12.97 12' CONC N • 6.07 12' CONC E =6.04 8' CONC W • 10.17 8' CONC 5 - 842 SAWCUT AND PA REPLACE WITH UKE HIND THICKNESS AND MATERIALS MW 4' ASPHALT OVER 6' CRUSHED ROCK 0. 10' CONC. CONSTRUCTION KEYNOTES ID RIM -12.49 VORIECH MODEL 4000 STORMWATER TREAT ONT DEVICE PER OETALL THIS SHEET 0- 2.0CFS (2 IN FLOW ) W 5.52CFS (100 YR FIDW) IE- 6.52 Q CONCRETE PLUG EXISTING 24 CMP OUTLET CORE AND 9STALL NEW 21' PVC SCR 35 TO VORIECH UNIT IE. 654 CB//1 TYPE 2. 54' SCUD COVER 814- 12.4911 MATCH COSTING SAME/OVERBUILD EX2SDNG 24' CMP IE -6.4911 (ALL) EXISTING STRUCTURE SCHEDULE (DATUM - 1988 NAVD) 35 0 18 95MN -N RIM - 12.94 24' CMP W • 6.49 10" DI NE - 6.54 8' CONC S • 6.54 10' CONC E • 6.99 OO 0902 TYPE 2, 46' SOLID COVER 601- 12.493 MATCH 0081940 I0 -8.50 (21') E PLACE FILTER FABRIC UNDER GRATE ((gSWCK) FOR PROIECIgN OF DOWNSTREAM CAT BISIN/IRENCH ORAOL MARIR 1004 OR APPROVED COWL- ROUND SOLID COVER MARKED 'DRAW' RIM EL- PER PLAN �- STANDARD GAANIZED STEEL LADDER LV STEPS -4' ADJUSTMENT BRICKS (12' MAX) 12' CAP WITH RUBBER GASI ET SHORT NIPPLE (LUBRICATE BOTH ENDS) (DIAMETER PER PLAN) AC. OR G.P.N. 'MANHOLE ADAPTOR PVC- SDR -35 LOCATED IN NARROW SIDE OF CB (-DRAINAGE STRUCTURES CB-4 RIM • 12.07 (TYPE 2) 24' CONC E • 2.01 24' CONC • ' 2. 13 C8-0 RIM • 12.26 (TYPE 2) 6' DI ' E • 10. 71 013t RIM - 12 11 6' CONC N • 10. 41 CB-0 RIM • 11 57 0' DI SE • 10. 52 CB-0 RIM • 12. 11 6' CONC E • 10. 38 C8-2 RIM • 12 30 EI8E0 SMUT C8-0 RIM - 12. 02 6' CONC • 6' CONC E C8i1 RIM - 11.92 6' CONC E C6-1 RIM ' 11 86 6' DI N 00-3 RIM - 12. 19 (1141. 5') 6' CON( CB-1( 619 - 12 17 6' CON( • 6' PVC NW 09-1 RIM • 12 04(SOLID 110)6' PVC 5E CB-II RIM • 11 74 6' DI N 21-N RIM • 12 57 6• CON( E 6' DI • CB-0 RIM • 1224 6' CON( N 08-P RIO • 11.34 8' COP N 6' c0NC s CB-R CB-S 8' CONC NE • 9.11 8' CONC • 9. 11 CB-7 RIM - 12 87 (TYPE 2) 0' PVC N • 9.56 CB-0 RIM - 15 86 8' CONC NE • 13.23 CB -V RIM • 15 22 08-11 RIM - 13 67 CB -6 RIM - 16.04 08-T RIO 16. 29 CB -2 RIM - 12.77 C8 -AA RIM • 12. 62 RIM - 12. 32 RIM - 11 79 RIM 11 71 12' CON( E 8' CONC E 6' CONC SR 8' CONC 5 6' CONC E • 9.95 -9.95 • 11. 12 - 9.93 • 10. 74 • 10. 47 • 10. 67 . 11. 16 • 9. 74 • 10.67 • 10.67 • 9.57 8. 39 • 0. 34 • 6. 44 • 10.11 • 10.22 • 8. 79 • 8. 79 C-88 C&CC C8 -0D RIM ' 16 52 RIM - 16 69 RIM • 10.94 C8 -0E RIM • 16.66 C8-FF RIM • 17.15 08-00 RIM - 16.21 \ CB-1H RIM - 16. 51 10' CONC 6' CONC 8" CONC 6' CONC 8' CONC 5' CONC 8' CONC 6' CONC 6' CONC 5 13.22 • - 10.36 • • 12.61 ▪ 13. 49 • - 10. 45 E • 11. 37 • - 11.37 • • 13.97 • 13.90 12' CON( E • 14.75 C DI 'NW • 14.75 12' CON( E • 15.20 12' CON( • • 15.11 6' PVC E • 15.62 12' CONC W • 15.60 6' CON( • • 14.75 6' CONC N • 14.86 DRAINAGE STRUCTURES (CONT.) 09 -1I RIM - 16 31 09-33 RIO - 16 53 081(8( C8-LL 08-9111 08324 08-00 CB-PP C8-00 08-RR RIO - 12 78 2' DLO. 60260 RIM • 12 99 RIM • 12.64 RIM - 12 42 RIM • 12 43 RIM - 12 87 RIO - 12 55 RIM -.12 71 05-55 RIM • 12.64 C11-17 RIM - 12 19 08-244 RIM - 12.18 CB -W RIM - 12 24 C8-WO RIM - 12 46 08 -0( RIM - 12 64 CB -40 RIM - 12. 82 08 -22 RIM - 12 62 CH-AAA RIM - 12.68 084188 RIM • 12 55 C8-40C RIM - 12 54 08-000 08-EEE C8-FFF C9-0GG 081191 08 -111 C8-JJJ co100< CB1LL CB -1614 RIM - 12.52(1'41') RIM - 12 27 RIM - 12.64 RIM - 12 90 RIM - 12 64 RIM - 12 74 RIM • 12 74 RIM • 12 67 RIM • 1269 RIM - 12 69 6' CONC 9 • 14.66 8' CONC • 4' PVC 5 10' DI NE 10' DI N 10' CON( SE 6' CON( • 6' CONC ■ 8' PVC 5 6' PVC 5 8' CON( 5 6' CONC E 8' CONC N 6' IXM40 5 4' COW E 4. PVC Y 6' CON( 3' PVC E 4' DI W 4' DI ■ 3' PVC N 6' CONC N 8- CONC 6' CONIC N 8' CONC 5 3' PVC S 6' DI NW 118-0 ED SHUT 6' DI N• 6' DI 6' DI • 3' PVC N 6' DI N ELOED SHUT 8" CONC NE 6' CONC 5• 6' CONC E 6' CON( E 8' 0060 W 6' 0ON0 W 8' CON( 5 6' CONC N 6' CON( E 8' D1 5 6' CONC NE 6' CONC E • 11 48 15 13 - 7.08 -6.73 9. 88 10.81 10 49 10 45 10 33 10.59 11 25 30 36 10 38 • 11 79 • 11 29 - 1079 - 1099 11.33 - 11 54 -11 54 9.71 -9.71 - 1059 10 54 - 11. 97 1037 • II OS 10 89 • 1116 • 1009 11 52 11 24 • 11 15 10 05 • 1D 64 • 10.69 • 10.69 10.74 • 9.75 -854 • 6,14 B. 74 • 11.02 8' 01' N - 10.99 8' DI N' • 11.44 DRAINAGE STRUCTURES (CONT. ) C8-8466 RIM • 12.61 6' CONC N CB -000 RIM - 12.56 6' CONC N CB-PPP RIM • 12.60 6' CONC N 00-000 RIM • 12.65 6' CONC N CB-RRR RIM • 12.80 4' CONC • 0' CONC 5E 09-555 RIM • 12.01 B' CONC • 08 -TTT RIM - 12.92 4' CONC 5 CB-UUU RIM - 13.12 4' PVC • 4' PVC • 4' CON NE 6' PVC E CB -VVV RIM - 12.67 6' PVC NE 6' PVC • 8' PVC 5 6' CONC SR CB -1188 RIM • 13.24 SD 01.008 UT CB -004 RIM • 12.97 5' CON( 59 08-070 RIM • 11.74 6' CON( NE CB-ZZZ RIM • 11.81 4' CONC SE 6' CONC 59 CB -4444 RIM • 11.98 6' CONC • CB -8888 RIM • 12.25 6' PVC C6 -0000 RIM - 16.17 6' DI 5 08 -0000 RIM - 15. 17 8' DI N 8' DI 5 6' 01 E 0111-0EEE RIM • 10. 16 8' DI N 8" D3 0 8' DI • CS -FFFF RIM • 15.18 0" D1 N CB -0440 RIM - 15.24 8' DI 5 C8199111 RIM • 15.13 0' DI N 8' D1 9 Ce -1111 RIM • 10. 15 8' 01 N 8' DI 0 8' 01 E C8 -1333 RIM • 15. 17 6' 01 N 8" 0l S 09-♦(KNK RIM - 15.17 8' 01 N CB-U-11 RIM - 18. 18 6' A05 0 C8-19610 RIM • 16.09 8' ADS N 8' ADS 0 08161121 RIM • 18.08 6' ADS N 8" ADS 5 CB -0000 RIM • 16. 08 5' ADS N 5' ADS E CB -PPPP RIM - 18.74 8' PVC W • 11. 43 • 11.01 • 11.24 • 11. 33 • 11.30 10. 90 • 10 41 • 11.97 • 11 12 • 11 12 • 11 07 • 10 93 • 9. 95 • 9. 45 • 1025 - 11 27 - 1076 • 9. 70 9. 59 • 10 21 -9.93 -1039 27 -1425 - 13 79 - 13 79 • 15 18 • 1537 15 58 15 21 -1474 • 14 97 14 57 -1445 - 14 45 1445 • 14 87 • 14. 87 - 14 80 IS 20 14.91 - 14 09 • 14.76 • 14. 73 - 14. 48 • 14, 33 • 15.28 1E- PER PLAN OUTLET RISER TO EXISTING WHERE SHOWN ON PLAN CAP 817(4 GASKET TYPICAL WATER QUALITY FLOW CONTROL STRUCTURE IE. PER PLAN PVC TEE W/ RUBBER GASKET JOINTS RUBBER GASKET PLUG ORIFCE 581/00ER PER PLAN CATCH BASIN TYPE A OWAETER PER PLAN NOT TO SCA1E STORM MANHOLES SDMH -A R16 • 12.61(4' SQUARE) FULL OF DEBRIS 0004-0 RIO • 12.30 12" CONC 5 • 6.05 ./SEALED 55 LINE AIR 6 E B' CONC N • 6.20 24' CIP M • 5 65 24' 0&P E - 5 85 5044 -C RIM • 12.77 12' CONC N • 7.72 18' 00210 E • 7 30 18' CONC Y • 7 30 9204-0 RIM •16. 32(CHAI4FLED) 16' CONC E • 9 32 18' CONC W • 9 22 8' CONC N • 9 81 1' CONC 5E • 12 01 10' CONC 5E - 12 74 16' CONC R • 11 74 90011-0 5008 -F 9206-0 S17161-N W19-3 RIM - 13.11 RIM - 18. 34 RIM - 17.0D RIO - 12.69 RIM - 12.64 RIM - 12. 46 513161-14 RIM - 17.59 501641 RIM - 16.62 501114-41 RIM • l6.59 SONN -N RIM • 18.59 00914-0 RIM - 18.49 S0w4 -P RIM • 1295 TRENCH DRAIN TO-A RIM - 12.66 70-9 RIM • 12.59 TD-0 RIO • 12.82 16' 02840 9 - 10 92 18' CON( E - 11.05 NO PIPES BOTTOM 9 69 8' DI N - 9 64 6" PVC N 4' 01 SE 8' 01 5 -1006 • 10 85 -963 36' CBNC NE • 8. 34 36' CONC SW • 6 34 24' 409 5 24' ADS N 8' DI R 12 07 • 12.02 - 12 02 24' ADS 6 - 11.66 24' A05 5 - 11 -69 24' ADS N 36' CONC PC 36" CONC SW 12' ADS E C ADS W 15' ADS 5 24' ADS N 24' OP E 24' DP • 0' DI 5 B' DI N 5' DI SE - 11 44 5 59 •649 13 64 ID 82 0 69 • 5 19 5.25 530 6 15 6.07 10 75 SOUTH END • 11 98 NORTH END • 11 98 GRATE • 11.19 FULL OF DEBRIS SANITARY SEWER MANHOLES 5508-0 RIM • 12.20 15' CONC SE • 5.05 6' DI N • 5.25 1 6' CLAY • - 7.12 5508-9 RIM - 12.19 15' DI SE - 6.64 15' DI NM - 6.60 55191-C RIM • 12.97 12' CON0 N • 6.07 12' CON( E • 6.04 0' CONC 9 • 10. 17 8' CONC s - 8.42 5508-0 RIM - 17.53 8' CONC E • 12.98 8' CONC 9 - 13.03 8' CONC 5 - 13.03 5506-0 RIM • 16.59 6' CONC E • 10.44 0' CONC • • 10.49 5506-2 RIM • 17.03 10' PVC E • 12.48 10" on • - 12.46 5546-0 RIM • 12.89 6' CON( N • 9.59 10' A85 W • 9.39 5508+ RIM • 12.94 24' CRP W - 8.49 10' DI 410•6.54 8' CONC 5 • 0. 54 10' CONC E • 6.99 5506 -1 RIM • 13.03 12' CON( E • 8 57 12' CONC 9 • 8 56 6' CONC N - 9.03 3' CONC SE • 9. 03 55111.1-1 RIM • 17.63 8' CON( • • 10. 12 12' CONC E • 9. 89 SANITARY SEWER / STORM MANHOLES 55MN/SOMN -A RIM -.10. 28 10' CONC E - 5.68 18" CONC W - 8.68 10' CONC N - 9.28 5510/9244.0 RIM - 12. 62 12' 00840 NE - 5.88 15' D1? :•5.78 10' CONC? - 5.88 12' DI 5 -8.02 3' ADS 5 - 10.02 5991/50151 -C RIM - 12 614 24' CYP E - 3. 9 24' 01P • 3' 50101/5008-0 RIM •i12. 915 24' 011 E - 24' CIP • 8' DI 4' CON( 8' CON 5510/5048-0 RIM •.2.914 24' 24' 7 4.914 24 10. • 3.313 • 4.913 ■ - 4.910 00140.1E RIDNFOIO2E0 FM NSW 1.1302010 ° 11 1.14910 SWAT 41-- -L 7 R1�q 9FAAM MO MM. 7 992006NW® 1Oa,AOc 4C.:f4CT I042_1C724-4-C61.10-C1.t2C:::1::11+2 :icG7P 3024140-2 roansvrortunclmucrs wrwasenotaxuartv SECTION A - A� nompttow TRW., II 1111111.11.27/80,600b11710YRIOSI.R.IFINIM41130107.074.13 KR11.1110■Trele 0.11.1[4..01.17.171M .111.11.0M1111.41., ,8. PROPRIETARY INFORMATION - NOT TO BE USED FOR CONSTRUCTION PURPOSES STORMWAlER STANDARD DETAIL STORMWATER TREATMENT SYSTEM VORTECHS• MODEL 9000 t1.11 P1471211714, uvula 9A,RNWa (•9• (44265•.19. (0106 0.10 I041EM9D1RR PLAN VIEW B -B ' .tf!;40 r clN�ef!. C•J'I.'C.. r.0 r. <.. c,.. l�C MINIWP17•101.17PV•IMR.M. WIVE NNW 00•1611M • MN SECTION A - A 7. MITA 64111...0.11011011“.1.01111.0 C1131,1/U1s11.0 144IHM@Mo46•C4aaAR NARUnaRS -m: rtwR PROPRIETARY INFORMATION - NOT TO BE USED FOR CONSTRUCTION PURPOSES WHIM' . STO60OW TER SOLUTIONS- STANDARD DETAIL STORMWATER TREATMENT SYSTEM VORTECHS. MODEL 4000 an.lA.o 144,424.946 14R6446m.91644 19.4••■(o•om.,oe 1 A 5 4g !Er W O 6 ECE'VED r (,) Yo v COMMUNITY EVELOPNIENT 0 5 LL •C m a of W 8 l g ,L ! 211 • C4 4,4 Z m C.4 CO � WI 423 02 N N N N N N Dale/Tme.5 /24/2007 4.59 PM EXPIRES 01 -07- # 1 May. 17. LVVI IV:U7AIYI iuorinwesi Regional vii ice irv. I))V I WASHINGTON STATE EECAOTLEOTG �Y DATE: TI1VIE: NORTHWEST REGIONAL, OFFICE Facsimile Cover Sheet Number of pages: TO: FAX #: FDA PHONE: Plus Cover Sheet kgrOkil -114,63tIA eRk/k. ,t1014 4601t.s (1-6;piri: .GPA Department of Ecology Northwest Regional Office 3190 — 160th Avenue SE Bellevue, WA 98008-5452 Phone: 425 - 649 -7000 Fax: 425 -649 -7098 COMMENTS: SECTION: —rc_P May. 15. 2007 10:09AM Northwest Regional Office No. 1558 P. 2 STATE OF WASHINGTON DEPARTMENT OF ECOLOGY •Northwest Regional Office • 3190 160th Avenue SE • Bellevue, Washington 98008 -5452 • (425) 649 -7000 May 15, 2007 Mr Steven Tibble Insurance Auto Auctions 850 East Algonquin Road Schamberg, IL 60173 . • Subject: Storm Water and Water Quality Improvements for IAAI at 8801 E Marginal Way South Site, former Paccar Kenworth Truck, Tukwila, WA Dear Steve Tibble: The proposed Storm Drainage and Water Quality Improvements at 8801 site may take place as an independent action under the Model Toxics Control Act, our state cleanup regulations. WAC 173- 340 - 515(2) allows independent remedial actions to take place, even on sites where consent decree negotiations have been initiated, as long as they do not foreclose or preempt further remedial actions and Ecology has prior notice of the independent action and does not object.. The water quality work here is even a bit removed from what the WAC provision contemplates because it is not the PLP doing independent work, but a lessee on the property. That makes it very important that we have documentation showing the PLP knows about the independent work and they are in agreement with this work moving forward. As for public comment, if the work is being done pursuant to a Shoreline Management Act permit, then that permit has public comment processes and opportunities. As long as those are moving forward as they would for any other Shoreline Management Act permit, I have no • concerns on the public comment side of things. These water quality (WQ) improvements will require trenching to install new storm drain piping and localized excavation to install a Vortech pretreatment system before discharge at the two outfalls into the Lower Duwamish. Some of the trenching and excavation is estimated to or may penetrate into locations where there is contamination from past site activities. Note all work would be conducted outside with open air conditions. Paccar has offered to prepare an overlay to show known sample results and concentration of chemicals of concern at the proposed trenching and excavation locations. Paccar estimates that most of the trenching and excavation will occur where there is no or there is limited contamination. Ecology recommends a Compliance Monitoring Plan for side wall and base of any trenching and excavations in order to confirm surrounding conditions and to safeguard the new improvements. • May. 15. 200/ 10:10AM Northwest Kegional Ottice No.1558 P. 3 Note, City of Tukwila has reported that this proposed WQ improvement work was approved • under SEPA in 2004. No further SEPA comment process is planned at this time. This work is estimated to be implemented this dry season between July 1 and October 1, 2007. Thank you and I look forward to working with you.to complete these improvements.. If you need more information, please contact me at the Northwest Regional Office at 425 -649 -7249. Sincerely, t. Maura S 0' =rien, PG/HG #869 Professional Geologist/Hydrogeologist and Site Manager Toxics Cleanup Program Cc Mark Barbieri, Washington Holdings LLC Eric Buckler, Paccar Inc Joanna Spencer, City of Tukwila Kris Flint, EPA Jay Grubb, Barghausen Consulting Engineers Inc May.15. 200/ 10:10AM Northwest f;egional Ottice No. 1558 P. 4 STATE OF WASHINGTON DEPARTMENT OF ECOLOGY Northwest Regional Office • 3190 160th Avenue SE • Bellevue, Washington 98008.5452 • (425) 649.7000 May 15, 2007 Ms. Joanna Spencer, City of Tukwila Public Works Department 6300 Southcenter Blvd. Tukwila, WA 98188 Subject Comments for the Storm Drainage and Water Quality. Improvements Permit Application 4PW07 -037 as an independent action and review comments for Insurance Auto Auctions Inc at 8801 E Marginal Way South, Tukwila, WA Dear Ms Joanna Spencer: Ecology has reviewed the proposed Storm Drainage and Water Quality Improvements #PW07- 037 Permit Application for Insurance Auto Auctions Inc located at 8801 E Marginal. Way South and aportion of the adjacent property to the south at 9229 E Marginal Way South, Tukwila, Washington. Below are Ecology's comments for the proposed improvements. Note, that this work may be conducted as an independent action under the Model Toxics Control with prior notice and agreement from Ecology. Here are the comments for the drainage report and permit application for Insurance Auto Auctions Inc (IAAI) prepared by Barghausen Consulting Engineers Inc and dated March 30, 2007: 1. Ecology agrees that IAAI should move forward with the proposed water quality improvements. The stone water data collected to date are very limited and Ecology will work closely with IAAI for collecting additional data. If the data collected in the future show that the water quality at the.outfalls do not meet Ecology's effluent limits and may potentially impact Duwamish Waterway sediment, then Ecology will require additional best management practices (BMPs). 2. The permit application will be updated to comply with the Stormwater Management Manual for Western Washington dated February 2005 replacing the King County 1998 guidance. All calculations for flow and capacity will be footnoted and attached to the report or figures. 3. Section 5, page 6 of the Drainage Report It is Ecology's understanding that any storm over a 2 -year peak flow will by pass the Vortech system, and there is no backwater into the existing storm water system as stated. Please revise this paragraph to reflect the design. May. 15. 2007 10:10AM Northwest Regional Ottice No, 1558 N. 5 4. Section 2.1, page 2 and Section 3, page 4. I believe there is an above ground drainage pipe from the Boeing Thompson/Boeing Isaacson property at the north that discharges onto the 8801 site above ground. This drainage pipe is located about midway between the North Outfall and the northwest corner of the former manufacturing building. Will this . discharge be added to the north outfall? 5. Monitoring needs to be conducted at the North Outfall oil -water skimmer to confirm water quality conditions prior to discharge to the waterway and to confirm that the skimmer meets discharge limits. Parameters of concern are oil and grease. These are Ecology's comments to date, and we look forward to working with you with the revised application. If you have questions or would like to discuss these points please contact Ecology and for engineering questions please contact Sunny Becker at 425- 649 -7187 and site management issues please contact me at 425 -649 -7249. Sincerely, Maura S. O'Brien, PG/HG #869 Professional Geologist/Hydrogeologist and Site Manager Toxics Cleanup Program cc Steve Tibble, Insurance Auto Auctions Inc Jay Grubb, Barghausen Consulting Engineers Inc Mark Barbieri, Washington Holdings LLC Eric Buckler, Paccar Inc Kris Flint, EPA Ms. Minnie Dhaliwal, Senior Planner City of Tukwila Public Works Department 6300 Southcenter Boulevard Tukwila, WA 98188 RE: Insurance Auto Actions, Inc. (IAAI) 8801 East Marginal Way South Tukwila, Washington Permit No. D07 -237 / Our Job No, 11419 Dear Ms. Dhaliwal: CIVIL ENGINEERING, LAND PLANNING, SURVEYING, ENVIRONMENTAL SERVICES May 15, 2007 In response to recent and prior commitments, Insurance Auto Auctions, Inc. (IAAI), is proceeding forward with acquiring the necessary permits for the installation of the required stormwater pre- treatment facilities at the above - referenced project. The engineering drawings for the pre- treatment facilities were submitted to the City on March 30, 2007, with an application for a Type C Permit. A portion of the work is proposed within the 200 -foot shoreline setback of the Duwamish River, therefore subject to State Shoreline requirements, which are implemented through the Tukwila Municipal Code and Shoreline Overlay District (TMC 18.44). TMC 18.44 stipulates that any substantial development as defined by the Shoreline Act (RCW 90.58) within 200 feet of any shoreline of the State, which is not exempt by the Shoreline Act, must obtain a Shoreline Substantial Development Permit. Substantial development shall mean any development of which the total cost or fair market value exceeds $5,000, or any development which materially interferes with normal public use of the water or shoreline of the state. A portion of the work is within the 200 feet of the shoreline of the State and will certainly exceed the total cost of $5,000. However, RCW 90.50 -030 also describes activities that would not be considered as substantial development. For the purpose of this application, we are asking the City to confirm that the proposed work is "Normal maintenance and repair of existing structures" and therefore exempt from the requirement for a Substantial Shoreline Development Permit, per 90.58.030 (3)(e)(i). The work area is fully developed, serving as a paved yard for the temporary storage of automobiles for auctioning. The paved yard area is equipped with a stormwater collection and conveyance system, which has been in place for many years. It consists of sloped paved surfaces, catch basins, and underground conveyance pipe and a piped discharge to the Duwamish waterway (drainage control system). The system requires maintenance and repair to improve its water quality capability. The proposed repairs to the existing drainage control system include removal/replacement of pavement, installation of one catch basin, installation of approximately 120 lineal feet of 8 -inch storm drain pipe, and placement of an underground Vortechs pre- treatment unit in line to the existing conveyance pipe and outfall. This proposed work augments the existing drainage control system and does not include any other development activities or expansion of facility operations at this location. Finally, it should be noted that the shoreline is a manmade bulkhead and not a native shoreline habitat. The nearest work to the shoreline will be approximately 40 feet. No work will occur on the water side of the shoreline. Therefore, these improvements and associated work do not materially interfere with normal public use of the water or shoreline of the State. 18215 72ND AVENUE SOUTH KENT, WA 98032 (425) 251 -6222 (425) 251 -8782 FAX BRANCH OFFICES • OLYMPIA, WA • TACOMA, WA • SACRAMENTO, CA • TEMECULA, CA www.barghausen.com Ms. Minnie Dhaliwal, Senior Planner City of Tukwila Public Works Department -2- May 15, 2007 Please review our request at your earliest convenience and notify us of your concurrence. Your assistance is appreciated. Respectfully, ...5 -, Jay S. Grubb, P.E. Vice President JSG /vj 11419c.018.doc cc: Ms. Joanna Spencer, City of Tukwila Mr. Steve Tibble, Insurance Auto Auctions, Inc. Ms. Maura O'Brien, Washington State Department of Ecology Mr. Greg Stegman, Washington State Department of Ecology STATE OF WASHINGTON DEPARTMENT OF ECOLOGY Northwest Regional Office • 3190 160th Avenue SE • Bellevue, Washington 98008 -5452 • (425) 649 -7000 APR z .7 2007 CERTIFIED MAIL 7006 2150 0000 6852 9230 Mr. Steve Tibble Insurance Auto Auctions, Inc. Two Westbrook Corporate Center, Suite 500 Westchester, IL 60154 RECEIVED APR 3 0 200 TUKWILA PUBLIC WORKS Dear Mr. Tibble: RE: Non - Compliance with the Industrial Stormwater General Permit No. S03008681 terms and conditions. On March 6, 2007 a compliance inspection was conducted at the Insurance Auto Auctions facility located at 8801 East Marginal Way S, Tuckwila. The purpose of this inspection was to determine compliance with your Industrial Stormwater General Permit.(permit). Under the permit you are authorized to discharge stormwater to surface waters of the state contingent upon the compliance with the permit's terms and conditions. Your facility was not in compliance with some of the permit's terms and conditions, therefore I am seeking your voluntary compliance by implementing the corrective actions listed in the Concerns and Recommendations section of the enclosed Stormwater Compliance Inspection Report. Please be aware that failure to adhere to the permit's terms and conditions may result in the issuance of an administrative order and/or civil penalties of up to $10,000 per day per violation. Please contact me at 425- 649 -7019 or by email at gste461 @ecy.wa.gov if you have any questions. Sincerely, Gregory P. egman Water Quality Program Northwest Regional Office GPS:cg Enclosures cc: Gil Hyder, Insurance Auto Auctions Mark Barbieri, Washington Real Estate Holdings —%-***NiMaura O'Brien, Ecology Sunny Becker, Ecology •c• 0 111II11TI■ 1711.1 ESC /O L1O G Y State of Washington Department of Ecology Northwest Regional Office • STORMWATER COMPLIANCE INSPECTION REPORT General Data : • Inspection Date 03 /06/07 NPDES Permit # S03008681A County King Receiving Waters Duwamish Waterway Inspector(s) Greg Stegman Fac Type Industrial Standard Industrial Code; . Weather at time of inspection: Clear Discharges to: Surface Water 0 Ground Water ❑ Facility Data . • Name and Location of Facility Inspected • Entry Time Permit Effective Date Insurance Auto Auctions, Inc. • 10:00 am . 09/20/02 . Exit Time Permit Expiration Date • $801 East Marginal Way S , Tukwila, WA 98108 1:30 pm . 09/20/07 • Name(s) of On-Site Representative(s)/Title(s) /Phone and Fax Number(s) Additional Participants' Ecology -TCP: Maura O'Brian, Richard Thomas, Steve Tibble 708 -492 =7374 Sunny Becker and David Bretlinger. Mark Barbieri, Washington Real Estate. Gil Hyder 206 -658 6900 - Mailing Address of Responsible Official/Title /Phone and Fax Number: • Steve Tibble Samples_ Taken? No `Insurance Auto Auctions, Inc. 0 Two Westbrook Corporate Center, Suite 500 Westchester, IL 60154 Photos Taken? Yes • • • • " 0 Announced Inspection CONCERNS AND RECOMMENDATIONS \ - • . Permit condition S4. E.4 requires a facility involved with vehicle salvage to monitor for total copper and . . total lead. Therefore begin monitoring for total copper and total lead in addition to monitoring for oil and grease, turbidity, pH, total zinc. •_ The required stormwater sampling and reporting has not been conducted at the facility, which is a , . violation of Industrial Stormwater General Permit (permit) condition S4.D.2. Therefore for the second. quarter of 2007 collect a storynwater sample for the north and south stormwater discharge point. Analyze . ' these samples for oil and grease; turbidity, pH, total zinc; total copper and total Iead..Then submit the ‘, -1 • laboratory results within 30 'days • of the sampling event to Greg Stegman, Washington State Department. • of Ecology, NWRO, 3190160 Avenue SE, Bellevue, WA 98008 -5452 and submit a 2007 second quarter . discharge monitoring report no later than,August 14, 2007 to Washington State Department of Ecology, Water Quality Program - Industrial Stormwater Unit, PO Box 47696, Olympia, WA 98504 -7696. ' . • Quarterly visual monitoring has not been documented at the facility, which is a violation of permit . . , condition S4.D.1. Therefore conduct quarterly visual monitoring as directed in permit condition S4.D.1, summarize the results of each inspection in a report or checklist and place a copy of the report in the • . facility's SWPPP. Additional information on visual, monitoring and an example of a visual monitoring work sheet can be found at: http: / /www.ecy.wa.gov/ programs/ wq/ stormwaterfndustrial /reporting.html#visual • Condition S9 of the permit requires that a Stormwater Pollution Prevention Plan (SWPPP) be developed and updated specifically for the permitted facility. Refer to Condition S9 for content requirements and update a SWPPP for your facility in order to come into compliance with the conditions of the permit. In addition, submit a copy of the updated SWPPP within 60 days to Greg Stegman, Washington State Department of Ecology; NWRO, 3190 160th Avenue SE, Bellevue, WA 98008 -5452 . . • • A copy of the SWPPP and permit were not available on -site which is a violation of permit condition S9.A. Therefore retain a copy of the SWPPP and permit on -site as outlined in condition S9.A. . • At the midpoint of the site adjacent to the waterway (photograph P3060466) it appears that untreated stormwater could flow directly into the waterway because the middle stormwater conveyance system has been disconnected and the area slopes toward the waterway. As soon as the necessary permits can be • obtained take action to correct this situation and upgrade the stormwater system at the site as required by the City of Tukwila. , • Cleanup all areas that have an accumulation of sediment (photograph P3060456, P3060458 and P3060468). • • •• It . has been brought to my attention that your facility has not submitted a renewal application for the Industrial Stormwater General Permit which will expire on September 20, 2007. Therefore suumit a • renewal .application as soon as possible. In addition; it appears that IAA has expanded operations to 9229 E -Marginal Way South (parcel 542260- 0010). If stormwater is discharged to a surface water body from this new area, include this information on the renewal application.. _, Because there is a potential for stormwater contamination from wrecked vehicle fluid leakage review the Best Management Practices (BMPs) for vehicle holding and storage yards (page 8 and13) in Ecology's guidance document for vehicle recyclers* and,implement any additional BMPs necessary. • 'Vehicle Recyclers: A Guide for Implementing the Industrial Stormwater General National Pollutant Discharge Elimination System (NPDES) Permit. Requirements.' ( httpJ/ www .ecy.wa.gov/bibiio /94146.htm1). BACKGROUND . _ ' . This_site was formerly owned by PACCAR Inc.. and was sold to Washington Real Estate Holdings LLC in 2003. Insurance.Auto Auctions (IAA) leased the property in December 2004. The 20 acre facility stores and auctions wrecked vehicles for insurance companies. - • 0 • Ecology's Toxic Cleanup Program has entered into an Agreed Order with PACCAR to investigate possible - pollutants that may be -escaping the site. The City of Tukwila has required IAA to upgrade the stormwater conveyance system at the site The stormwater system upgrade would require a Shoreline Substantial ' . • Development Permit for the project. , • This - facility: is covered under the Industrial Stormwater General Permit and has not been inspected previously by the "Department of Ecology. The purpose of this inspection is to conduct a compliance inspection per the :requirement of the Revised Code of Washington (RCVV) .90.48.560 and to provide technical assistance as • appropriate. • • • • Areas Evaluated During Inspection • • . " Stormwater Pollution. Prevention Plan (SWPPP) i4 Onsite: Not on.site • • • Permit`;;: ; - 0 Onsite: No •Visuallnspections ►i4 Documented: No • . Spill prevention and • • emergency cleanup plan '4 . •Documented: Yes • • • • - Employee training for spill - plan'and SWPPP i4 Documented: Yes ,Discharge Monitoring Reports�`(DMRs) i4 DMR.concem(s): No DMRs have been submitted • See inspection comments below for details. • • Catch Basins • ■ Frequency of Cleaning: As needed . Oil/Water Separators .4 Frequency of Cleaning: As needed Equipment/Vehicle Washing ■ Conducted onsite: No Panes 9 of Outside Storage and Parking Areas Fueling operations - Paved: Yes Sweeping Frequency: Every two weeks. Type of vehicles stored outside: Wrecked vehicles There were areas of the site that had an accumulation of sediment (photograph P1290007 and P1290010). Conducted onsite: Yes Type: Stationary. EquipmentNehicle Maintenance Conducted onsite: No Repair and maintenance performed outside: N/A Inspection Comments The facility originally discharged • stormwater from north, middle and south end of the site directly into' the Duwamish Waterway. The middle discharge point is no longer" used and has been disconnected. In the area • where the middle conveyance system has been disconnected (photograph P3060466) it appears that stormwater could flow directly into•the waterway untreated because the area slopes toward the waterway. Stormwater discharged through the north discharge conveyance system passes through an oil/Water separator before entering the waterway._Stormwater discharged through the south discharge conveyance system is not treated by an oil /water separator before •entering the waterway. • Since December 13, 2004 no stormwater sampling has occurred at the site except for two samples that were taken in October 2006 by PACCAR to fulfill a requirement of the Agreed Order issued.by Ecology's Toxic • Cleanup Program. No Discharge Monitoring. Reports (DMRs) have been submitted to Ecology since December -13, 2004: . For questions concerning this inspection report pfease contact Greg Stegman at (425) -649 -7019, gste461 @ecy.wa.gov, or Washington State Department of Ecology, NWRO, 3190 160"''Avenue SE, Bellevue, • WA 98008 -5452. cc: Greg Stegman, Ecology Signatures Greg•ry P. S egman .Stormwater, Inspector Water Quality Program Dyrzyop Date Reviewed and approved by: Donald Seeberger • Unit Supervisor Water Quality Program 125Iv P3060456 Accumulation of sediment P3060458 Accumulation of sediment Inspection Report Photographs Taken on 3/07/07 by Greg Stegman SO3008681- Insurance Auto Auction Page 4 of 5 P3060468 Accumulation of sediment Inspection Report Photographs Taken on 3/07/07 by Greg Stegman S03OO8881-Inmunanoe Auto Auction P3060466 It appears that untreated stormwater could flow directly into the waterway because the middle stormwater conveyance system has been disconnected and the area slopes toward the waterway. Page 5 of 5 Message Page 1 of 5 Joanna Spencer - RE: Summary and Action items for Paccar /8801 site meeting 4/4/07 From: "Eric Buckler" <Eric.Buckler @PACCAR.com> To: "Mark Barbieri" <mbarbieri @waholdings.com >, "O'Brien, Maura (ECY)" <MOBR461 @ECY.WA.GOV> Date: 04/11/2007 3:39 PM Subject: RE: Summary and Action items for Paccar /8801 site meeting 4/4/07 CC: "Brent Lower" <brentlower @waholdings.com >, <stibble @IAAI.com >, "Carole Robbins" <Carole.Robbins @ PACCAR.com>, <flint.kris @epamail.epa.gov >, <jspencer @ci.tukwila.wa.us> Mark, PACCAR has yet to receive a copy of the plans as requested in the recent meeting with Ecology to assist IAAI in this matter. Thanks, Eric From: Mark Barbieri [mailto :mbarbieri @waholdings.com] Sent: Wednesday, April 11, 2007 3:22 PM To: O'Brien, Maura (ECY) Cc: Brent Lower; stibble @IAAI.com; Carole Robbins; Eric Buckler; flint.kris @epamail.epa.gov; jspencer @ci.tukwila.wa.us Subject: RE: Summary and Action items for Paccar /8801 site meeting 4/4/07 Maura, Thank you for your e -mail. According to City of Tukwila, the permit plans were received by City on 3/30 and a copy of the permit plans were sent to your attention on 4/6 for your review. I am assuming there would be a meeting between Ecology, IAAI, Washington Holdings, City of Tukwila and Paccar soon? Please inform us all of next steps and any possible timeline and key milestones. Or would you prefer I check in with you by a specific date? Best regards, Mark Original Message From: O'Brien, Maura (ECY) [mailto:MOBR461 @ECY.WA.GOV] Sent: Wednesday, April 11, 2007 2:43 PM To: Mark Barbieri; Carole Robbins; Eric Buckler; flint.kris @epamail.epa.gov Cc: Brent Lower; stibble @IAAI.com Subject: RE: Summary and Action items for Paccar /8801 site meeting 4/4/07 Thanks Mark for the update and let's keep in touch. Maura Maura S. O'Brien, PG /HG #869 Professional Geologist/Hydrogeologist and Site Manager Washington State Department of Ecology Toxics Cleanup Program 3190 - 160th Avenue SE Bellevue, WA 98008 -5452 mobr461@ecy.wa.gov file ://C :\Documents%2Oand%2OSettjngs\Joanna\Loca1%2OSettjns\Tem,\XPGi-oWjse\46 04/11/2007 Message Page 2 of 5 Tele 425 - 649 -7249 Fax 425 - 649 -7098 Original Message From: Mark Barbieri [mailto:mbarbieri @waholdings.com] Sent: Friday, April 06, 2007 10:37 AM To: O'Brien, Maura (ECY); Carole Robbins; Eric Buckler; flint.kris @epamail.epa.gov Cc: Wang, Ching -Pi (ECY); Thomas, Richard (ECY); Helland, Bradley (ECY); Becker, Sunny (ECY); Brent Lower; stibble @IAAI.com Subject: RE: Summary and Action items for Paccar /8801 site meeting 4/4/07 Dear Friends, I have exchanged e-mails with Steve Tibble at IAAI. Steve informed me that plans for the IAA stormwater improvements were submitted to the City of Tukwila last week. I requested a copy of the plans for circulation to Washington Holdings, Ecology and Paccar. I also mentioned that Ecology and Paccar would like to schedule a meeting with IAA to coordinate the IAA stormwater work. Best regards, Mark Mark Barbieri Washington Real Estate Holdings, LLC 600 University Street, Suite 2820 Seattle, WA 98101 direct: (206) 613 -5316 mobile: (206) 255 -0756 fax: (206) 613 -5301 mbarbieri@waholdings.com www.waholdings.com Original Message From: O'Brien, Maura (ECY) [mailto:MOBR461 @ECY.WA.GOV] Sent: Friday, April 06, 2007 9:35 AM To: Carole Robbins; Eric Buckler; David Templeton; Strong, Meg; Brent Lower; Mark Barbieri; Steven Tibble; flint.kris @epamail.epa.gov Cc: Wang, Ching -Pi (ECY); Thomas, Richard (ECY); Helland, Bradley (ECY); Becker, Sunny (ECY) Subject: FW: Summary and Action items for Paccar /8801 site meeting 4/4/07 Hello, Here is a brief summary from Wednesday's meeting with Paccar, Washington Holdings LLC, IAAI, and Anchor and Amec with Ecology and EPA on Wed April 4, 2007. Amec presented the recent groundwater monitoring results for March and August 2006 compared to most stringent surface water standards and to exceeding Ecology's Sediment Protection Screening Criteria for the wet and dry seasons, see figures 9 and 10. file: / /C:\ Documents %20and %20Settings\Joanna\ Local% 20Settings \Temp\XPGrpWise \46... 04/11/2007 Message Page 3 of 5 - Chemicals exceeding most stringent surface water standards for the wet season at March 2006 are: -PCB Aroclor 1254 three occurrence from 0.02 to 0.23 ug/L at MW -42A -BEHP Bis(2- Ethylhexyl)Phthalate six occurrences ranging from 6.8 to 16J ug/L at MW -26C - Copper seven occurrences ranging from 3.3 to 14.7 ug/L at MW -39A - Vinyl chloride three occurrences ranging from 4.4 to 130 ug/L at MW -28A - DCE (cis 1,2 -DCE and 1,1 -DCE) two occurrence 270 and 3.2 ug /L at MW -28A and -14A respectively -PCE at 19 ug/L at MW -8A -TCE at 74 ug/L at MW -14A - Nickel at 46.7 ug/L at MW -11A - Arsenic at 213 ug/L off -site at Boeing Thompson at MW -I -206 - Chemicals exceeding most stringent surface water standards for the dry season at August 2006 are: - PCB Aroclor 1254 three occurrence from 0.026 to 0.084 ug /L at MW -42A -BEHP Bis(2- Ethylhexyl)Phthalate six occurrences ranging from 4.3 to 50 ug/L at MW -28A - Copper four occurrences ranging from 3.9 to 21.3 ug/L at MW -39A -Vinyl chloride one occurrenceat 47 ug/L at MW -28A -DCE (cis 1,2 -DCE and 1,1 -DCE) two occurrence 120 and 2.4 ug/L at MW -28A and -14A respectively - PCE at 8.3 ug/L at MW -8A - TCE at 84 ug /L at MW -14A - Nickel at 18.3 ug/L at MW -11A - Arsenic at 235 ug/L off -site at Boeing Thompson at MW -I -206 - Chemicals exceeding Ecology's Sediment Protection Screening Criteria for the wet season at March 2006 are: -PCB Aroclor 1254 one occurrence at 0.23 ug/L at MW -42A -BEHP Bis(2- Ethylhexyl)Phthalate twelve occurrences ranging from 1 to 16J ug/L at MW -26C - Zinc one occurrence at 59 ug/L at MW -11A - Benzo(ghi)perylene at 0.024 ug/L at MW -42A - Chemicals exceeding Ecolo ' y's Sediment Protection Screening Criteria for the dry season at August 2006 are: -BEHP Bis(2- Ethylhexyl)Phthalate thirteen occurrences ranging from 1.1 to 50 ug/L at MW -28A - Arsenic at 235 ug /L off -site at Boeing Thompson at MW -I -206 Amec compiled soil sampling results showing exceedances and detections for PCBs where soil currently remains at site (excluding sampling results where soils were excavated). These results show one location at SWS -1 where PCBs are at 1750 ug/kg exceeding residential criteria at 1000 ug/kg; and 33 locations showing results above detection and below residential criteria predominantly in the western third of the site; and 21 results at no detection. Note occurrences of PCBs in soil do not correlate with groundwater occurrences. Question -where is the source(s)? Question where are the results from the former Middle Outfall? file ://C :\Documents %20and %20Settings\ Joanna\ Local% 20Settings \Temp\XPGrpWise \46... 04/11/2007 Message Page 4 of 5 Anchor reported the Sediment Evaluation Work Plan (SEWP) results including sediment, stormwater solids and water (one event), and seep results collected during October - December 2006. Sediment results showed surface sediment sampling for PCBs exceeding SQS at 11 locations (max 48.4 mg/kg-OC) and detected at 15 locations with no samples exceeding CSL with a total of 26 samples. These PCB results show a significant reduction in PCB surface sediment concentration and number of locations compared to previous sampling results from 1997 -2005. Other sediment management chemicals of concern are Butylbenzylphthalate (max 14 mg/kg -OC) at seven locations, and one occurrence of Phenanthrene, Fluoranthene, and Dibenzo(a)anthracene all exceeding SQS and none exceeding CSL. There was one occurrence of mercury exceeding CSL and result is suspect and requires resampling. Stormwater solids results showed CSL exceedances for cadmium, zinc, three phthalates, and benzyl alcohol; and showed SQS exceedances for lead, zinc, PCBs, two phthalates, n- Nitrosodiphenylamine, and benzoic acid representing three samples. Stormwater water results showed two occurrences of marine chronic water quality criteria for lead and zinc representing two samples. Note several metals, total PCBs, and one phthalate were detected. Note, stormwater solids taken at #AN -033 showed elevated levels above CSL for cadmium, zinc, Dimethylphthalate, and bis(2- EthylHexyl)phthalate, and above SQS for lead. This location is a storm drain draining south from Boeing Thompson property and located at 8801 site approximately 4 -5 ft above ground surface. Need to review historic Sanborn information for age and history. Stormwater results need to be compared to SQS and CSL screening criteria. Seep results showed 12 chemicals exceeding conservative protection sediment screening criteria or groundwater screening levels based on SQS. These chemicals are mercury and PAHs where the PAH detection level was above screening criteria, and total benzofluoranthenes where its detection level was above screening criteria. All in all the SEWP results show improvement in PCB and other SMS chemical concentration and occurrences compared to earlier sediment results (1997 -05). Stormwater solids and water sampling requires multiple events in order to evaluate. Likewise seep results require numerous sampling events. Anchor prepared a pathway and data analysis for pathways to the LDW and compared these results with the Lower Duwamish Waterway Group sampling events. These are meaningful analyses and more work and review need to occur. For a phase 2 SEWP, all agreed that it appears that there is sufficient surface sediment results, so phase 2 surface sediment sampling will not be requested at this time with the exception of the single occurrence of mercury and need for resampling. Phase 2 sampling at and around AN -029 for mercury will be requested. There will be a need to conduct sediment coring to evaluate subsurface sediment and historic deposition of sediment and occurrence of chemicals of concern. The stormwater and seep sampling needs to continue file:/ /C:\Documents %20and %20Settings\ Joanna\ Local% 20Settings \Temp\XPGrpWise \46... 04/11/2007 Message Page 5 of 5 Next steps are for Ecology to complete review of the SEWP results and prepare a letter requesting phase 2 sampling or phase 1 report. Paccar agreed to continue preparing pathway analyses to look at chemicals of concern in sediment and upland results and identify what pathways are contributing to contamination and what pathways are incomplete and need more data. Paccar will propose a first cut for upland cleanup levels based on protection of LDW and source control. Paccar also offered to draft a CAP schedule. The issues of water quality, City of Tukwila letter and the industrial stormwater NPDES permit inspection were discussed. Ecology conducted the NPDES inspection on March 6, 2007 and Ecology will issue an inspection report and warning letter. IAAI is out of compliance and no quarterly monitoring results have been filed in 2005 and 06. Installation of the proposed water quality (WQ) measures needs to be implemented as soon as feasible and preferrably during the 2007 dry season. There is concern that some of the proposed measures may be located in areas of contaminated soils and thus need to coordinate with Paccar for cleanup. Ecology recommends that the proposed WQ measures be conducted as soon as feasible. These measures may be conducted as an interim action. Excavation with off -site treatment and disposal would be the preferred remedy with recycling and best management practices where feasible. That's all for April 4 meeting. Maura Maura S. O'Brien, PG /HG #869 Professional Geologist/Hydrogeologist and Site Manager Washington State Department of Ecology Toxics Cleanup Program 3190 - 160th Avenue SE Bellevue, WA 98008 -5452 mobr461@ecy.wa.gov Tele 425- 649 -7249 Fax 425 - 649 -7098 « File: O'Brien, Maura.vcf » file :/ /C:\Documents %20and %20Settings\ Joanna\ Local% 20Settings \Temp\XPGrpWise \46... 04/11/2007 Apr. 6. 2007 8:39AM Northwest Regional Office No. 054/ N. 1 ��SNIMNTOY ST41E £ C}OI LfOTG �Y DATE: TIME: NORTHWEST REGIONAL OFFICE:.. Facsimile Cover Sheet :: off, '<d8k, ® ®j. A�,,;Y FHT A 6 o Number of Pages: � Pius Cover Sheet TO: DWI ,,J4L FAX # . FROM: '42g _. PHONE: k.% Department of Ecology Northwest Regional Office 3190 - 160th Avenue S.E. Bellevue, WA 98008 -5452 Phone: (425) 649 -7000 Fax: (425) 649 -7098 COMMENTS: CltA ,r. /Z46tION: � hJ- 3° (A.G. vr 11 J Apr, 6. 2007 8:39AM Northwest Regional Office O'Brien, Maura EC From: Sent: To: Cc: Subject: No, 054/ Y. Z O'Brien, Maura (ECY) Friday, April 06, 2007 9:35 AM 'Carole Robbins'; 'Eric Buckler; David Templeton; Strong, Meg; Brent Lower; 'Mark Barbieri'; 'Steven Tibble'; Kris Flint (flint.kris @epamail.epa.gov) Wang, Ching -Pi (ECY); Thomas, Richard (ECY); Helland, Bradley (ECY); Becker, Sunny (ECY) FW: Summary and Action items for Paccar /8801 site meeting 4/4/07 Hello, Here is a brief summary from Wednesday's meeting with Paccar, Washington Holdings LLC, IAAI, and Anchor and Amec with Ecology and EPA on Wed April 4, 2007. Amec presented the recent groundwater monitoring results for March and August 2006 compared to most stringent surface water standards and to exceeding Ecology's Sediment Protection Screening Criteria for the wet and dry seasons, see figures 9 and 10. - Chemicals exceeding most stringent surface water standards for the wet season at March 2006 are: -PCB Aroclor 1254 three occurrence from 0.02 to 0.23 ug/L at MW -42A -BEHP Bis(2- Ethylhexyl)Phthalate six occurrences ranging from 6.8 to 16J ug/L at MW -26C - Copper seven occurrences ranging from 3.3 to 14.7 ug/L at MW -39A -Vinyl chloride three occurrences ranging from 4.4 to 130 ug/L at MW -28A -DCE (cis 1,2 -DCE and 1,1 -DCE) two occurrence 270 and 3.2 ug/L at MW -28A and -14A respectively -PCE at 19 ug/L at MW -8A - TCE at 74 ug/L at MW -14A - Nickel at 46.7 ug/L at MW -11A - Arsenic at 213 ug/L off -site at Boeing Thompson at MW -I -206 - Chemicals exceeding most stringent surface water standards for the dry season at August 2006 are: -PCB Aroclor 1254 three occurrence from 0.026 to 0.084 ug/L at MW -42A - BEHP Bis(2- Ethylhexyl)Phthalate six occurrences ranging from 4.3 to 50 ug/L at MW -28A - Copper four occurrences ranging from 3.9 to 21.3 ug/L at MW -39A - Vinyl chloride one occurrenceat 47 ug/L at MW -28A -DCE (cis 1,2- DCE.and 1,1 -DCE) two occurrence 120 and 2.4 ug/L at MW -28A and -14A respectively - PCE at 8,3 ug/L at MW -8A -TCE at 84 ug/L at MW -14A - Nickel at 18.3 ug/L at MW -11A - Arsenic at 235 ug/L off -site at Boeing Thompson at MW -I -206 - Chemicals exceeding Ecology's Sediment Protection Screening Criteria for the wet season at March 2006 are: -PCB Aroclor 1254 one occurrence at 0.23 ug/L at MW -42A -BEHP Bis(2- Ethylhexyl)Phthalate twelve occurrences ranging from 1 to 16J ug/L at MW -26C - Zinc one occurrence at 59 ug/L at MW -11A - Benzo(ghi)perylene at 0.024 ug/L at MW -42A - Chemicals exceeding Ecology's Sediment Protection Screening Criteria for the dry season at August 2006 are: -BEHP Bis(2- Ethylhexyl)Phthalate thirteen occurrences ranging from 1.1 to 50 ug/L at MW -28A - Arsenic at 235 ug/L off-site at Boeing Thompson at MW -I -206 Apr. 6. 2007 8:39AM . Northwest Regional Ottice No. U541 r. j Amec compiled soil sampling results showing exceedances and detections for PCBs where soil currently remains at site (excluding sampling results where soils were excavated). These results show one location at SWS -1 where PCBs are at 1750 ug/kg exceeding residential criteria at 1000 ug/kg; and 33 locations showing results above detection and below residential criteria predominantly in the western third of the site; and 21 results at no detection. Note occurrences of PCBs in soil do not correlate with groundwater occurrences. Question -where is the source(s)? Question where are the results from the former Middle Outfall? Anchor reported the Sediment Evaluation Work Plan (SEWP) results including sediment, stormwater solids and water (one event), and seep results collected during October - December 2006. Sediment results showed surface sediment sampling for PCBs exceeding SQS at 11 locations (max 48.4 mg/kg -0C) and detected at 15 locations with no samples exceeding CSL with a total of 26 samples. These PCB results show a significant reduction in PCB surface sediment concentration and number of locations compared to previous sampling results from 1997- 2005. Other sediment management chemicals of concern are Butylbenzylphthalate (max 14 mg/kg-OC) at seven locations, and one occurrence of Phenanthrene, Fluoranthene, and Dibenzo(a)anthracene all exceeding SQS and none exceeding CSL. There was one occurrence of mercury exceeding CSL and result is suspect and requires resampling. Stormwater solids results showed CSL exceedances for cadmium, zinc, three phthalates, and benzyl alcohol; and showed SQS exceedances for lead, zinc, PCBs, two phthalates, n- Nitrosodiphenylamine, and benzoic acid representing three samples. Stormwater water results showed two occurrences of marine chronic water quality criteria for lead and zinc representing two samples. Note several metals, total PCBs, and one phthalate were detected. Note, stormwater solids taken at #AN -033 showed elevated levels above CSL for cadmium, zinc, Dimethylphthalate, and bis(2- EthylHexyl)phthalate, and above SQS for lead. This location is a storm drain draining south from Boeing Thompson property and located at 8801 site approximately 4 -5 ft above ground surface. Need to review historic Sanborn information for age and history. Stormwater results need to be compared to SQS and CSL screening criteria. Seep results showed 12 chemicals exceeding conservative protection sediment screening criteria or groundwater screening levels based on SQS. These chemicals are mercury and PAHs where the PAH detection level was *above screening criteria, and total benzofluoranthenes where its detection level was above screening criteria. All in all the SEWP results show improvement in PCB and other SMS chemical concentration and occurrences compared to earlier sediment results (1997 -05). Stormwater solids and water sampling requires multiple events in order to evaluate. Likewise seep results require numerous sampling events. Anchor prepared a pathway and data analysis for pathways to the LDW and compared these results with the • Lower Duwamish Waterway Group sampling events. These•are meaningful analyses and more work and review need to occur. . For a phase 2 SEWP, all agreed that.it appears that there is sufficient surface sediment results, so phase 2 surface sediment sampling will not be requested at this time with the exception of the single occurrence of mercury and need for resampling. Phase 2 sampling at and around AN -029 for mercury will be requested. There will be a need to conduct sediment coring to evaluate subsurface sediment and historic deposition of sediment and occurrence of chemicals of concern. The stormwater and seep sampling needs to continue , Next steps are for Ecology to complete review of the SEWP results and prepare a letter requesting phase 2 Apr. 6. 2007 8:40AM Northwest Regional Office No. 054/ F. 4 sampling or phase 1 report. Paccar agreed to continue preparing pathway analyses to look at chemicals of concern in sediment and upland results and identify what pathways are contributing to contamination and what pathways are incomplete and need more data. Paccar will propose a first cut for upland cleanup levels based on protection of LDW and source control. Paccar also offered to draft a CAP schedule. The issues of water quality, City of Tukwila letter and the industrial stormwater NPDES permit inspection were discussed. Ecology conducted the NPDES inspection on March 6, 2007 and Ecology will issue an inspection report and warning letter. IAAI is out of compliance and no quarterly monitoring results have been filed in 2005 and 06. Installation of the proposed water quality (WQ) measures needs to be implemented as soon as feasible and preferrably during the 2007 dry season. There is concern that some of the proposed measures may be located in areas of contaminated soils and thus need to coordinate with Paccar for cleanup. Ecology recommends that the proposed WQ measures be conducted as soon as feasible. These measures may be conducted as an interim action. Excavation with off -site treatment and disposal would be the preferred remedy with recycling and best management practices where feasible. That's all for April 4 meeting. Maura Maura S. O'Brien, PG /HG #889 Professional Geologist/Hydrogeologist and Site Manager Washington State Department of Ecology Toxics Cleanup Program 3190 -160th Avenue SE Bellevue, WA 98008 -5452 mobr461@ecy.wa.gov Tele 425-649-7249 Fax 425-649-7098 « File: O'Brien, Maura.vcf » Ms. Minnie Dhaliwal, Senior Planner City of Tukwila Public Works Department 6300 Southcenter Boulevard Tukwila, WA 98188 RE: Insurance Auto Actions, Inc. (IAAI) 8801 East Marginal Way South Tukwila, Washington Permit No. D04 -237 / Our Job No. 11419 Dear Ms. Dhaliwal: CIVIL ENGINEERING, LAND PLANNING, SURVEYING, ENVIRONMENTAL SERVICES March 1, 2007 On behalf of Insurance Auto Auctions, Inc. (IAAI), this letter serves to respond to Mr. James Morrow's (Public Works Director, City of Tukwila) letter dated February 8, 2007, to Mr. Steve Tibble of IAAI. This letter also servers as a follow -up to our conversation on Tuesday. First, IAAI apologizes for not being able to complete the installation of the water quality treatment facilities at the property referenced above. You may recall that one of the proposed water quality treatment facilities and associated storm drainage improvements are within the 200 -foot shoreline setback and within the required environmental remediation area. Therefore, this work must be coordinated and completed in conjunction with the Shoreline Substantial Development Permit (Shoreline Permit) and the environmental remediation being pursued by Paccar. Unfortunately, the Shoreline Permit application (by Paccar) has expired and the environmental remediation has not occurred. It is my understanding (confirmation needed) that Paccar will file a new Shoreline Permit application after Ecology and Paccar have agreed to the remediation plan. As discussed, IAAI will proceed immediately with preparing the final engineering plans for the installation of the required storm drainage improvements and file the applicable construction - related permit (Permit) application. IAAI commits to have the Permit application and plans filed with the City on or before April 1, 2007. However, please realize that construction of the westerly treatment facility cannot occur until Paccar has completed the remediation work. Construction of the portion of the storm improvements that are outside of the shoreline setback and not within the environmental remediation areas could occur as soon as the plans are approved and the permit is issued. Based on this information and explanation, IAAI respectfully requests that the surety guarantee not be placed in default. If you have any questions or comments concerning this information, please let me know at your earliest convenience. Your ongoing assistance in this regard is appreciated. Respectfully, Jay S. Grubb, P.E. Vice President JSG /vj [ 11419c.016.doc] cc: Mr. James Morrow, City of Tukwila Ms. Shelley Kerlake, City of Tukwila Ms. Joanna Spencer, City of Tukwila Mr. Steve Tibble, Insurance Auto Auctions, Inc. 18215 72ND AVENUE SOUTH KENT, WA 98032 (425) 251 -6222 (425) 251 -8782 FAX BRANCH OFFICES • OLYMPIA, WA • TACOMA, WA • SACRAMENTO, CA • TEMECULA, CA www.barghausen.com February 8, 2007 city of Tukwila Steven M. Mullet, Mayor Department of Public Works James F. Morrow, P.E., Director Mr. Steve Tibble Real Estate Department Insurance Auto Auction Two Westbrook Corporate Center Westchester, IL 60154 Subject: Insurance. Auto Auctions, Inc. 8801 East Marginal Way S Permit D04-237 Storm Drainage and Water Quality Improvements Dear Mr. Tibble: This certified letter advises you that the installation of required storm drainage improvements at the subject site which were required as a condition of IAA site operation, has not been completed by September 30, 2005, as agreed upon. This work was guaranteed by a $178,500 bond held by the City of Tukwila. The fmancial guarantee allows the City of Tukwila to use the funds to complete the required improvements. The work as specified above is not complete as of today. Also, your SEPA and Shoreline revision applications (file nos. E04 -017 and L03 -067) have expired. We encourage you to apply for the necessary permits, and to fulfill your obligation. You must apply for the necessary permits by March, 1, 2007, or your funds will be defaulted. Please contact Minnie Dhaliwal, Senior Planner, Department of Community Development, at (206)431- 3685 to start the land use process. Failure to apply for permits prior to March 1, 2007 or failure to respond to this letter by March 1, 2007, will result in default of your surety guarantee deposit with the City of Tukwila. If you have any questions, please contact Joanna Spencer, Development Engineer, Public Works Department, at (206)431 -2440. Sincerely, dostvuta_a--T-rtrvots,t4, James F. Morrow, P.E. Public Works Director Mourns,- o t r3„ eU- (1°e. cc: V Minnie Dhaliwal, Senior Planner Shelley Kerslake, City Attorney Joanna Spencer, Development Engineer Merrill Creek Holdings LLC 4D9999 (P:Laurie Admin/Jim/Letter IAA 020807) _ .,n.nn _ na___. not A09 nlon _ c...,. onA A71_2AAC Minnie Dhaliwal - RE: IAA DEMO of BLDGS D and C Page 1 From: Ron Greene <rgreene @waholdings.com> To: 'Minnie Dhaliwal' < mdhaliwal @ci.tukwila.wa.us> Date: 3/7/05 2:56PM Subject: RE: IAA DEMO of BLDGS D and C Hi Minnie, I did receive the DOE letter when it was sent to Brent. We are not removing any pipes below the cement or asphalt. Our submitted plans show that we are capping the utilities at the surface. This would include sanitary sewer, roof drains and sprinkler piping. Domestic water is within a trench and it will be capped off as well. With that said I don't think DOE should have any issues as stated in their letter. Please let me know if I need to do anything else to get this moving along. Thanks. Ron Greene Assistant Vice President Construction Manager Washington Holdings 600 University Street, Suite 2820 Seattle, WA 98101 206 - 613 -5365 Direct Phone 206 - 613 -5366 Direct Fax rgreene @waholdings.com Original Message From: Minnie Dhaliwal [mailto :mdhaliwal @ci.tukwila.wa.us] Sent: Friday, March 04, 2005 4:24 PM To: Ron Greene Cc: Joanna Spencer Subject: RE: IAA DEMO of BLDGS D and C Hi Ron, I received the SEPA addendum request from David Kehle this afternoon for the demolition of bldg D at 8801 East Marginal Way South. How are you planning on capping the utilities? Is any subsurface soil going to be exposed? Have you discussed this with from Ecology? I will also forward you her email that was sent to Brent Lower with WA Holdings. discussed this with David Kehle earlier this morning and he wrote that the utilities will be capped at existing surface. Is there more detailed information about the location and nature of the existing utilities that you will be capping? Minnie Dhaliwal Senior Planner City of Tukwila Minnie Dhaliwal - RE: IAA DEMO of BLDGS D and C Page 2 206 - 431 -3685 mdhaliwal @ci.tukwila.wa.us »> Ron Greene <rgreene @waholdings.com> 03/04/05 06:11AM »> Joanna, I am confused. We did submit SEPA review documentation with the permit. We are very anxious to get going on this project and do not understand how it can take so long to obtain a demo permit. I will call Minnie today and try and clear this up but for the record we have had all the proper paper work submitted for about three weeks now. If I am off base here, and have missed something please let me know what I need to do. Thank you. Ron Greene' Washington Holdings, LLC. Original Message From: Joanna Spencer [mailto :jspencer @ci.tukwila.wa.us] Sent: Thursday, March 03, 2005 3:02 PM To: Ron Greene Cc: Joanna Spencer; Minnie Dhaliwal Subject: IAA DEMO of BLDGS D and C I talked to Minnie Dhaliwal, Senior Planner at (206) 431 -3685 who pointed out that demo of the above two bldgs was not included in the SEPA application. Please contact Minnie directly to file a SEPA amendment. If there are plans to demo the existing water tower in the future, please have tower demolition included in the SEPA amendment. Thank you for your cooperation. Joanna CC: Joanna Spencer <jspencer @ci.tukwila.wa.us >, "David Kehle (E- mail)" <dkehle @seanet.com> Minnie Dhaliwal - RE: IAA DEMO of BLDGS D and C Page 1 From: Ron Greene <rgreene @waholdings.com> To: 'Minnie Dhaliwal' <mdhaliwal @ci.tukwila.wa.us> Date: 3/7/05 2:58PM Subject: RE: IAA DEMO of BLDGS D and C Hi Minnie, This is the revised e-mail that covers what we talked about today and the original e-mail is below that you didn't get. We are not removing any pipes below the cement or asphalt. Our submitted plans show that we are capping the utilities at the surface. This would include sanitary sewer and roof drains. The fire sprinkler piping has already been capped under a separate permit. Domestic water is within a trench and it will be capped off as well. We are not planning on demolishing the water tower in the foreseeable future. With that said I don't think DOE should have any issues as stated in their letter. As discussed I will call or have Alex with Paccar call Maura to address her environmental concerns. Thank you. Ron Greene Assistant Vice President Construction Manager Washington Holdings 600 University Street, Suite 2820 Seattle, WA 98101 206 - 613 -5365 Direct Phone 206 - 613 -5366 Direct Fax rgreene @waholdings.com Original Message From: Ron Greene Sent: Monday, March 07, 2005 8:05 AM To: 'Minnie Dhaliwal' Cc: Joanna Spencer; David Kehle (E -mail) Subject: RE: IAA DEMO of BLDGS D and C Hi Minnie, I did receive the DOE letter when it was sent to Brent. We are not removing any pipes below the cement or asphalt. Our submitted plans show that we are capping the utilities at the surface. This would include sanitary sewer, roof drains and sprinkler piping. Domestic water is within a trench and it will be capped off as well. With that said I don't think DOE should have any issues as stated in their letter. Please let me know if need to do anything else to get this moving along. Thanks. Ron Greene Assistant Vice President Construction Manager Minnie Dhaljwal - RE: IM DEMO of BLDGS D and C Page 2 1 Washington Holdings 600 University Street, Suite 2820 Seattle, WA 98101 206 - 613 -5365 Direct Phone 206 - 613 -5366 Direct Fax rgreene @waholdings.com Original Message From: Minnie Dhaliwal [mailto :mdhaliwal @ci.tukwila.wa.us] Sent: Friday, March 04, 2005 4:24 PM To: Ron Greene Cc: Joanna Spencer Subject: RE: IAA DEMO of BLDGS D and C Hi Ron, I received the SEPA addendum request from David Kehle this afternoon for the demolition of bldg D at 8801 East Marginal Way South. How are you planning on capping the utilities? Is any subsurface soil going to be exposed? Have you discussed this with from Ecology? I will also forward you her email that was sent to Brent Lower with WA Holdings. I discussed this with David Kehle earlier this morning and he wrote.that the utilities will be capped at existing surface. Is there more detailed information about the location and nature of the existing utilities that you will be capping? Minnie Dhaliwal Senior Planner City of Tukwila 206 - 431 -3685 mdhaliwal @ci.tukwila.wa.us »> Ron Greene <rgreene @waholdings.com> 03/04/05 06:11AM »> Joanna, I am confused. We did submit SEPA review documentation with the permit. We are very anxious to get going on this project and do not understand how it can take so long to obtain a demo permit. I will call Minnie today and try and clear this up but for the record we have had all the proper paper work submitted for about three weeks now. If I am off base here, and have missed something please let me know what I need to do. Thank you. Ron Greene' Washington Holdings, LLC. Original Message [Minnie Dhaliwal,- RE: IAA DEMO of BLDGS D and C Page 3 From: Joanna Spencer [mailto :jspencer @ci.tukwila.wa.us] Sent: Thursday, March 03, 2005 3:02 PM To: Ron Greene Cc: Joanna Spencer; Minnie Dhaliwal Subject: IAA DEMO of BLDGS D and C I talked to Minnie Dhaliwal, Senior Planner at (206) 431 -3685 who pointed out that demo of the above two bldgs was not included in the SEPA application. Please contact Minnie directly to file a SEPA amendment. If there are plans to demo the existing water tower in the future, please have tower demolition included in the SEPA amendment. Thank you for your cooperation. Joanna CC: 'Joanna Spencer' <jspencer @ci.tukwila.wa.us >, "'David Kehle (E- mail) "' <dkehle @seanet.com> DEC 03 '04 03:58PM TUKWILA DCD /PW City of Tukwila 6300 Southcenter Blvd, Suite 100 Tukwila, WA 98188 206-431-3870 DEVELOPER'S PROJECT WARRANTY REQUEST FORM P.2 A 1 't .M"• , 1 Y.l � JY v •lil.?�'A!•�r,,C..,•Vn •� .'lY %S�'ti�:40^f •' �'J�:�+�]•'�•I' ' ?4. %1 , f` : l fig ;7� .. ` •' r . eC;:;,�QYt'. �. O• ®� :'- .W��ic dry.;, ..;,I^.• �;;��'",1'. k•', �, "�.:r�:- ,,1^�,, sr:j•l % „• °• Name of Development: I li f urrA c e A- jc I 't-r Date: / 2/ 6 /0 y Address: 8g0/ E. [Yr?, (ri / 4v > % %- J 1((4- /a, IN/F Permit No.: 0O4 - 2.3'7 Release should be sent to: Name: T of ' - . c - . ' 4, 4 - i c S4e,' "ii( 4/{ .Address: iwo /[ (Qc,1( r6r/2_ f-ac (e r`te SSoo City /State/Zip U' 'd- c 1 J/--Q f ) T L u/ F L( Description of items to be completed (reference plans /documents where items are described); ZIfA/ Ot C9-) ru. y d jcd /1 ( As the owner, or authorized agent of the owner, I hereby submit cash or cash equivalent in the amount of $ /7 8, f-00 (150% of value to complete work above) and attach support documentation for value of work. I will have this work carried out and call for a final inspection by this date: 47/7 0/ ol , or risk having the City use these funds to carry out the work With their own contractor or in -house manpower. If 1 fail to carry out the work, I hereby authorize the City to go onto the property and carry out completion of the above deficiencies. I further agree to complete all work listed above prior to requesting inspection and release of these funds. Signed; dl■ Title:_ UP 8 6' 42 Ceti 0-G w'• , : ,L ' 1 �:. :ltd EtL' '� ,,- • 1 . 1A Ay ,., 1:. n /: su } Signed: .i... Department Head: `a V.o1Z Amount /7& �° Deposited this Date 0 Cash/Check ❑ Cash Assignment Bond City Receipt No.:� Received By,..,:,,,, 1 r.• w .. .:.1ij .. 5� • ncii };rig-C(:.:•i ";,�•^�,A:! 3� • �. J P.NY l'p v,d'R •'" 4 7 ; D "eA •��1 T�.fii "'c3 i•) ,i'ft , Y' .j.: ,p R `i �' ,..76, 1! .. f v ° +•M.. wi. si, S l' + s 3{ `i��4t'n+ "i1�'� .,, ;..�7i• ..�.. �tar�. ,.a:.l. n� All work identified in Section 1 o this form has now been completed and returned to department which authorized warranty. I hereby request inspection and release of my cash /cash equivalent/bond. Developer's Representative: Date: "y � z w5' ! 4Z� }a �:' : ; a ,2' r:lz{'i ,g''�.'.•`.a �' - "ew•t*';;"1 r:.:�, .'a'�'tri 4.ti';'.� ,` �' k�:•.• .:a _,: ',: r•.�_•,A :.h,•:•.re . -.._, p. ",i� ?fh•:C•w}.siCA H 1 have reviewed the wove work and found it acceptable and therefore authorize the release o the above cash /cash equivalent/bond. Inspector: Date: Authorized By: . roc 6 •, /• u;, r,'3��,�1 :/�� V. �I �1G;W V,'r •C.i�!�t�M;,Y�I V ��� �t�4)� F.S. � ^.r�.i�_t::'i�t%')p�;:,�; J � �' �o- � L.:�ti-;� . �hu•�•'.i• . Amount Released: $ ❑ Check - Check No. ❑ Cash Equivalent — Letter attached ❑ Bond — Letter attached Date Released: Released by: Volif'1,71frdWeirl botUwtilepe'. /rein+ wormy 7ono in. PERFORMANCE BOND Bond No. 103761085 -429 KNOW ALL PERSONS BY THESE PRESENTS, That we, Insurance Auto Auctions, Inc. of 8801 E. Marginal Way S., Tukwila, WA., as Principal and Travelers Casualty and Surety Company of America, as Surety are jointly and severely held and bound unto City of Tukwila, as Obligee, in the sum of One Hundred Seventy Eight Thousand Five Hundred and 00/100s— ($178,500.00), for the payment of which we bind ourselves, our legal representatives, successors and assigns, firmly by these presents. WHEREAS, Insurance Auto Auctions, Inc. has applied for a certain permit to the City of Tukwila and the Principal has agreed to perform construction of storm drainage system(s) and water quality treatment(s) for Insurance Auto Auctions, Inc., which things he /she agrees to do in accordance with the certain terms, conditions, requirements, plans and specifications as set out in the permit agreement. NOW THEREFORE, the condition of this obligation is such that, if the Principal shall faithfully perform the work described above then this obligation shall be void; otherwise to remain in full force and effect. This bond shall continue in full force and effect until obligations secured hereby have been fully performed, inspected and accepted by the Department of Public Works and released in writing by the City of Tukwila at the written request of the Surety or Principal. Signed, sealed and dated this 6th day of December 2004. Insurance Auto Auctions, Inc. By: Travelers Casualty and Surety Com By: Linh B. Bucholtz, Attorne- -In -Fa t any of America Doy -237 Minnie Dhaliwal - RE: Letter from IAAI/Temp Use Page 1 1 From: "Walden, Erik" <ewalden @IAAl.com> To: "Minnie Dhaliwal" <mdhaliwal @ci.tukwila.wa.us> Date: 12/3/04 4:18PM Subject: RE: Letter from IAAI/Temp Use Minnie attached is the site map that has the areas we are currently storing vehicles highlighted in yellow. Please let me know if you need anything further. From: Al Robertson [mailto:alr @gvakm.com] Sent: Friday, December 03, 2004 2:34 PM To: Minnie Dhaliwal Cc: Madden, Michael; Walden, Erik Subject: Letter from IAAI /Temp Use Minnie, attached is the requested letter. The site plan showing where the cars are to be stored is forth coming. Please let me know of any questions or concerns you have. Thanks, Al Al Robertson Senior Vice President GVA Kidder Mathews 12886 Interurban Avenue South Seattle, WA 98168 206.248 -7322 fax 206.248 -7342 alr @gvakm.com CC: "Madden, Michael" <mmadden @IAAl.com >, "Al Robertson" <alr @gvakm.com> WOW a.= —taw' cm ......c mt. ....c ,os• CA. •tc,c' . • • -- , . , l a ,,, 1 ;I rgi i33 ---"'"':::":. .....,:::.V 4' ,-i ,...!-'. - • ...-,:_;.:',-...-.'' :-._1,-9(','- '''. • . ' 'I: i A‘I. • -'•'• -•••;. •• • - ' . - ...'. ••• •-••''••‘.••S , tit,•••••, I : li ,,,-;•0•e;.,Is---• .;, 5., ' ---i:.;,,,,,- - „ i*VF"',„1,4 • „g . I ' ..---'1,..' • .-':..- -• ..--;".*.t.. 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Auburn, WA 98002 Phone: 253- 735 -2724 Fax: 253- 735 -3945 www.iaai.com Fax From: i e / � Phone: Pages: c 4 INSURANCE AUTO AUCTIONS Re: CC: ❑ Urgent ❑ For Review ❑ Please Comment ❑ Please Reply Cl Please Recycle .01.41Z. .ark Comments: Important - This message Is Intended only for the use Witte Individual or entity to which It is addressed and may contain Information that Is privileged, confidential and exempt from disclosure under app:cable law, If the reader of this message is not the intended recipient, or the employee or agent responsible to deliver it to the Intended recipient, you are hereby notified that reading, disseminating, distributing or copying this communication Is strictly prohibited. If you have received this communIcatlon In error, please immediately notify us by halephone, and return the origins! message to us at thd, aboJe address via the U.S. postal seMce. Thank you. DEC. 3. 2004 1:38PM Ad6 INSURANCE AUTO AUCTIONS To Whom It May Concern: NO. 571 P. 2 This letter is to inform you of the current use of the property at 8801 E Marginal Way S Tukwila, WA 98108 for vehicle storage by IAA. IAA is forced to be off our existing property at our Woodinville facility by year end due to the condemnation of the property for the Brightwater project. All incoming vehicles have been reassigned to the Tukwila Location in order to avoid future transferring. We have contained the storage of the vehicles to the Southern end of the property, All vehicles are being stored outside on the property. No buildings are being utilized at this time. The temporary trailer on -sight is being utilized to maintain our inventory as well as the security of the vehicles on the property, The temporary trailer will be taken off the property when the use of the remodeled office is available. Thank you, Erik Walden IAA Seattle Manager I Minnie Dhaliwal - RE: Letter from IAAI /Temp Use Page 1 1 From: "Madden, Michael" <mmadden @IAAI.com> To: "Al Robertson" <alr @gvakm.com >, "Minnie Dhaliwal" <mdhaliwal @ci.tukwila.wa.us> Date: 12/3/04 3:05PM Subject: RE: Letter from IAAI /Temp Use Ms. Dhaliwal, I wish to emphasize IAA is not conducting its customary business on the Tukwila property. That is, IAA is NOT conducting sales or auctions. Our company is merely storing vehicles that otherwise would have been assigned to our Woodinville location. However, as you may recall, the latter has been condemned and IAA is scheduled to close that facility December 31, 2004. Absent a logical and disciplined redirection of vehicles, on or about December 31, the Tukwila site would face a veritable tsunami of salvage units! Thank you, Michael. From: Al Robertson [mailto:alr @gvakm.com] Sent: Friday, December 03, 2004 4:34 PM To: Minnie Dhaliwal Cc: Madden, Michael; Walden, Erik Subject: Letter from IAAI/Temp Use Minnie, attached is the requested letter. The site plan showing where the cars are to be stored is forth coming. Please let me know of any questions or concerns you have. Thanks, Al Al Robertson Senior Vice President GVA Kidder Mathews 12886 Interurban Avenue South Seattle, WA 98168 206.248 -7322 fax 206.248 -7342 alr @gvakm.com CC: "Walden, Erik" <ewalden @IAAI.com> nose' .leee...e 11•0•112,73:11( 4.e.weaaer 1,91 Ise oun 11949-10( 48.1 • .S (feet` AL.. titil.9N I WAN Amos AvA, lvmmoi ziUV :As NOM.D11V OiflY 25Ourism �n Era 4JiDtleeef4t: Lirea.. • W'! .,,,.;„,--:.• • , ' r---;-'-:... . , f. A•1 - a l!';! ,01 - - -- • .1.----N-- . 0, '6. IA 1 ?4ii'i v;A'' i 1 ■”, 1 I Oii:4441 1 0 ::.1 11:ii u: --. 0.— "r• T.' :1 . - iu 1— ? ,f' ,,1 j 7F:F.- ' '0 —7 1 ill • ti t — , F--------1 f ?e, Minnie Dhaliwal - Re: Fwd: Letter from IAAI /Temp Use Page 1j From: Donald Tomaso To: Minnie Dhaliwal Date: 12/6/04 9:46AM Subject: Re: Fwd: Letter from IAAI/Temp Use Minnie, I have not problem with the storage as long as they do not block the fire lanes and access gates. Don »> Minnie Dhaliwal 12/03/04 04:41 PM »> Hi Don, Let me know if you have any issues with storing of cars outside the building prior to their final approval. Thanks.. Minnie Minnie Dhaliwal - Re: Fwd: Letter from IAAI/Temp Use Page 1' From: Joanna Spencer To: Donald Tomaso Date: 12/7/04 3:19PM Subject: Re: Fwd: Letter from IAAI /Temp Use Are the fire lanes already marked on the site, so they know where they can not store nor park ? »Joanna »> Donald Tomaso 12/06/04 09:46AM »> Minnie, I have not problem with the storage as long as they do not block the fire lanes and access gates. Don »> Minnie Dhaliwal 12/03/04 04:41 PM »> Hi Don, Let me know if you have any issues with storing of cars outside the building prior to their final approval. Thanks.. Minnie CC: Minnie Dhaliwal Minnie Dhaliwal - Re: Fwd: Letter from IAAI/Temp Use From: Donald Tomaso To: Minnie Dhaliwal Date: 12/7/04 4:16PM Subject: Re: Fwd: Letter from IAAI /Temp Use Minnie, The fire lanes should already be marked, but I do not know the condition of the stripping, Lt. Edwards will be there tommorrow and take a look. Don »> Minnie Dhaliwal 12/07/04 01:59PM »> Don, Are the fire lanes marked on this site or will they be marked as part of the building permit that has not been finagled yet? Minnie »> Donald Tomaso 12/06/04 09:46AM »> Minnie, I have not problem with the storage as long as they do not block the fire lanes and access gates. Don »> Minnie Dhaliwal 12/03/04 04:41 PM »> Hi Don, Let me know if you have any issues with storing of cars outside the building prior to their final approval. Thanks.. Minnie Page 1 Minnie Dhaliwal - FW: Paccar site @ 8801 E Marginal Way S (Ins Auto Auction E04 -0 14) Page 1 I • From: Mike Brooks <mbrooks @waholdings.com> To: 'Joanna Spencer' < IMCEAMAILTO- jspencer+ 40ci+ 2Etukwila +2Ewa +2Eus @waholdings.com> Date: 7/20/04 9:29AM Subject: FW: Paccar site @ 8801 E Marginal Way S (Ins Auto Auction E04 -0 14 ) We are forwarding the below information from Dan Lewis at PACCAR in answer to your request regarding Paccar's use of the 8801 E Marginal Way site, which continues to the present time. Mike Brooks Vice President - Development Washington Holdings 600 University Street, Suite 2820 Seattle, WA 98101 206 - 613 -5300 206 - 613 -5301 FAX 206 - 372 -2612 CeII mbrooks @waholdings.com Original Message From: Dan Lewis [mailto:Dan.Lewis @ paccar.com] Sent: Monday, July 19, 2004 5:10 PM To: Brent Lower Cc: Richard Bangert; Carole Robbins; Craig Wrench Subject: RE: Paccar site @8801 E Marginal Way S (Ins Auto Auction E04 -0 14 ) Brent PACCAR ceased truck assembly operations and completed removal /auction of truck assembly equipment at the end of the 4th quarter 2002. We continue some inside warehousing of materials and racking for Kenworth and environmental activities on the site. We continue to maintain 24 x 7 presence on the property. Thanks, Dan Lewis Director of Corporate Services & Construction PACCAR Inc 777 106th Ave. N.E. Bellevue, WA 98044 Ph 425 - 468 -7519 Fax 425 - 468 -8213 Cell 425- 864 -7699 Original Message From: Brent Lower [ mailto :brentlower @waholdings.com] Sent: Monday, July 19, 2004 2:22 PM To: Dan Lewis (E- mail); 'dave.bennett @paccar.com' Minnie Dhaliwal - FW: Paccar site @ 8801 E Marginal Way S (Ins Auto Auction E04 -0 14) Page 2J Cc: Mike Brooks Subject: FW: Paccar site @8801 E Marginal Way S (Ins Auto Auction E04 -0 14) Dan or Dave, The City is asking us for the date the E. Marginal property was vacated. Could you please provide us with the latest date at which the facility was occupied? Thanks. Brent Lower Senior Vice President - Acquisitions Washington Holdings 600 University Street, Suite 2820 Seattle, WA 98101 206- 613 -5300 206 - 613 -5301 FAX 206 - 372 -1906 Cell brentlower @waholdings.com > Original Message > From: Mike Brooks > Sent: Monday, July 19, 2004 1:28 PM > To: Brent Lower; Craig Wrench > Subject: FW: Paccar site @8801 E Marginal Way S (Ins Auto Auction > E04 -014) > What is the official date PACCAR became "vacant "? > Mike Brooks > Vice President - Development > Washington Holdings > 600 University Street, Suite 2820 > Seattle, WA 98101 > 206 - 613 -5300 > 206 - 613 -5301 FAX > 206 - 372 -2612 Cell > mbrooks @waholdings.com > Original Message > From: Joanna Spencer [ mailto :jspencer @ci.tukwila.wa.us] > Sent: Monday, July 19, 2004 10:29 AM > To: Mike Brooks > Cc: Minnie Dhaliwal > Subject: Re: Paccar site @8801 E Marginal Way S (Ins Auto Auction > E04 -014) > «Re: Paccar site @8801 E Marginal Way S» CC: - MDhaliwal @ci.tukwila.wa.us - <MDhaliwal @ci.tukwila.wa.us >, Craig Wrench <cwrench @waholdings.com >, Brent Lower <brentlower @waholdings.com> a , Mini - ie Dhaliwal - PACCAR Permitting Pageil From: Dean Malte <DeanMalte @KennedyJenks.com> To: "'mdhaliwal @ci.tukwila.wa.us "' <mdhaliwal @ci.tukwila.wa.us> Date: 7/12/04 5:02PM Subject: PACCAR Permitting Minnie- Based on our conversation earlier today (and on previous conversations) regarding the PACCAR site (8801 East Marginal Way South), our understanding of the City of Tukwila's expectations regarding permitting for additional excavation and in -place pipe lining activities at the PACCAR site is as follows: 1. New Public Works permits are required for this scope of work. We understand that these permits can be applied for at a later date, and that review of SEPA and Shoreline materials can begin immediately upon our submittal of the appropriate materials. We anticipate that Public Works permit applications will be submitted at a later date by the selected Contractor. 2. A SEPA Environmental Review is required in support of the new scope of work, primarily for the purposes of public notification and identification of new work areas. 3. The previous Shoreline Permit for the AS /SVE project will be revised to include the new scope of work. You indicated that we need to request the Shoreline Permit revision in our cover letter with the SEPA Environmental review. In addition, you indicated that we need to address the Criteria for Projects Subject to King County Shoreline Regulations (item #10 on the Shoreline Permit Application) as related to the new scope of work. Based on this information, it is our understanding that the City of Tukwila will revise the Shoreline Permit. You indicated that there is no additional permit cost associated with revision of the Shoreline Permit. 4. We understand that the initial review period for the SEPA application is 28 days, however, you indicated that it would likely be concluded in 2 weeks or less. After the initial review period, public notice materials will be sent by the City, and the 14 -day public comment period will begin. We understand that a public notice board needs to be posted at the site at this time. In addition, you indicated that there is a 21 -day Ecology review period for any revisions to the Shoreline Permit, and that the 21 -day review period begins after the SEPA process (including the 14 -day public comment period) is complete. You indicated that work onsite could be started prior to the completion of the 21 -day review period, but at PACCAR's own risk. Please confirm our understanding of these requirements, or identify any misunderstandings. Please provide any additional information that you believe may pertain to permitting for this project. As PACCAR has indicated in the past, this is a relatively fast -track project. If it would be beneficial to meeting the City's permit requirements, and facilitate early identification of any potential permitting delays, we are available to meet with you to discuss the project. We understand that you are currently reviewing another permit for demolition 1 M nn a Dhaliwal - PACCAR Permitting Page 2 � activities at the PACCAR site. This project is separate from the demolition project. Please feel free to call me with any questions or comments. Thank you. Dean K. Malte, R.G. Kennedy /Jenks Consultants 32001 32nd Avenue South, Suite 100 Federal Way, Washington 98001 (253) 874 -0555 (Main) (253) 942 -3463 (Direct) (253) 952 -3435 (Fax) DeanMalte @KennedyJenks.com CC: Ty Schreiner <TySchreiner @KennedyJenks.com >, Amanda Aldersley <AmandaAldersley @KennedyJenks.com >, Ross Dunning <RossDunning @KennedyJenks.com >, - carole.robbins @paccar.comm <carole.robbins @paccar.com >, "'alex.buccilli @paccar.comm <alex.buccilli @paccar.com> [ Minrie Dhaliwal - RE: SDP not necessary for demolition Page 1 From: Brent Lower <brentlower @waholdings.com> To: "'mdhaliwal @ci.tukwila.wa.us ." <mdhaliwal @ci.tukwila.wa.us >, "'slancaster @ci.tukwila.wa.us"' < slancaster @ci.tukwila.wa.us> Date: 6/17/04 5:O0PM Subject: RE: SDP not necessary for demolition Minnie and Steve, As you know, there is no development associated with the demolition or the proposed use. Further, no scaffolding, roads or other improvements will be required to complete said demolition. I trust this information is sufficient for the City to make the definitive determination that a Shoreline permit will not be required. Sincerely, Brent Lower Senior Vice President - Acquisitions Washington Holdings 600 University Street, Suite 2820 Seattle, WA 98101 206 - 613 -5300 206 - 613 -5301 FAX 206 - 372 -1906 CeII brentlower @waholdings.com Original Message From: Lange, Sandra [mailto:SLAN461 @ECY.WA.GOV] Sent: Thursday, June 17, 2004 4:34 PM To: 'mdhaliwal @ci.tukwila.wa.us'; 'slancaster @ci.tukwila.wa.us' Cc: Mike Brooks; Brent Lower; 'alr @gvakm.com' Subject: SDP not necessary for demolition . It appears that no shoreline permit would be required for removal of the buildings unless development is required in order to accomplish the removal. For instance, if a road or scaffolding must be erected on the site in order to get the buildings out of there, that is development requiring a permit. If the applicant already knows it is going to redevelop the site once the buildings are removed, the entire proposal from demolition to redevelopment should probably be covered in one SEPA document. A shoreline permit should be required for the redevelopment once the buildings are removed. In her conversation with Mr. Robertson, Ms. Sohnerone referred to the 1992 Supreme Court decision on Cowiche Canyon (118 Wn.2nd 801) which states: For purposes of the Shoreline Management Act of 1971 (RCW 90.58), the total removal or destruction of a structure is not encompassed by the term "exterior alteration of structures" as that term is used in RCW 90.58.030(3)(d), which defines "development as including the exterior alteration of structures ". Mr. Don Bales, the Ecology specialist in these matters forwarded this additional information to me about that case and its history: [Minnie Dhaliwal - RE: SDP not necessary for demolition Page 2 Cowiche Canyon Conservancy v. Bosley <http: // search. mrsc. org /nxt/gateway.dll ?f= templates &fn = courts.htm$vid= courts :court> , WA Supreme Court 118 Wn.2d 801, 828 P.2d 549 (1992). [11] Environment - Shoreline Management - "Development" - What Constitutes - Destruction. For purposes of the Shoreline Management Act of 1971 (RCW 90.58), the total removal or destruction of a structure is not encompassed by the term "exterior alteration of structures" as that term is used in RCW 90.58.030(3)(d), which defines "development" as including the exterior alteration of structures. Nature of Action: A nonprofit organization, a private business, and the Department of Ecology alleged that the defendants' removal of three abandoned railroad trestles crossing a creek and the erection of gates at each end of a portion of an abandoned railroad right of way violated the Shoreline Management Act of 1971. The plaintiffs also alleged trespass and trover and conversion. Superior Court: The Superior Court for Yakima County, No. 88 -2- 00389 -0, Heather Van Nuys, J., on September 16, 1988, entered partial summary judgments that removal of the trestles violated the act and dismissing the plaintiffs' common law claims. The Superior Court for Yakima County, Michael E. Cooper, J. on August 25, 1989, entered a judgment dismissing the action and awarding attorney fees to the defendants. Supreme Court: Holding that the nonprofit organization and private business did not have standing to bring suit under the Shoreline Management Act of 1971, that the removal of the trestles did not constitute a "development" for purposes of the act, that the gates did not interfere with normal public access to the creek, and that the defendants were entitled to attorney fees at trial and on appeal, the court affirms the judgment. Original Message From: Al Robertson [mailto:alr @gvakm.com] Sent: Friday, June 11, 2004 9:44 AM To: mdhaliwal @ci.tukwila.wa.us; slancaster @ci.tukwila.wa.us Subject: Kenworth /IAAI Permit Submittal Ms. Dhhliwal, thank you for your assistance concerning the Use questions for my client IAAI. I look forward to hearing from you today and the resolution relevant to IAAI's reutilization of the former Kenworth facility. One issue you did raise with respect to our intention of demolishing the existing metal facilities within the 200 foot shoreline area was the necessity to submit for a shoreline permit per the WAC 173 -27 -040 which deals with "Development" that is exempt from the Substantial Development Permit Requirement. The key issue with respect to determining if our intention to demolish existing structures would require a Shoreline Permit is if "Demolition" of an existing structure is considered a Development by either the WAC 173 -27 Shoreline Management Permit and Enforcement Procedures or the Shoreline Management Act of 1971. I have attached both definitions for "development" and "substantial development" for your review. From our review and our attorneys, Demolition of existing structures does not fall within either definition. I Minnie Dhaliwal - RE: SDP not necessary for demolition Page 3 r To further investigate this issue we have contacted the Washington State Dept. of Ecology- Shoreline Compliance Coordinator to request their input. Ms. Jo Sohneronne of the DOE said that demolition of existing structures within the shoreline are does not require a shoreline permit since no structure will be developed within its place. In addition we have contacted King County's Shoreline Management representative -Matt Caskey and according to that conversation it was not necessary to submit for a Substantial Development Permit either. It is my Clients interest to insure that all regulations concerning the reutilization of the facility are addressed properly. However, from our . research concerning the planned demolition of the metal structures within the 200 foot shoreline the Substantial Development Permit is not necessary. Al Robertson Senior Vice President GVA Kidder Mathews 12886 Interurban Avenue South Seattle, WA 98168 206.248 -7322 fax 206.248 -7342 alr @gvakm.com <mailto:alr @gvakm.com> CC: Mike Brooks <mbrooks @waholdings.com >, "'alr @gvakm.com- <alr @gvakm.com >, "'Lange, Sandra "' <SLAN461@ECY.WA.GOV>, "David Kehle (E- mail)" <dkehle @seanet.com >, "Steven M. Tibble (E- mail)" <stibble @iaai.com >, Ron Greene <rgreene @waholdings.com> June 14, 2004 Cizyof Tukwila Department of Community Development Al Robertson Senior Vice President GVA Kidder Mathews 12886 Interurban Avenue South Seattle WA 98168 Steven M. Mullet, Mayor Steve Lancaster, Director Re: Proposed use by Insurance Auto Auctions, Inc. at the former Kenworth facility located at 8801 East Marginal Way South, Tukwila, WA 98188. Dear Mr. Robertson: This is in response to your request for determination whether the proposed use by Insurance Auto Auctions, Inc. is a permitted use at the above - mentioned location, which is zoned Manufacturing Industrial Center/ Heavy (MIC/H). Based on review of the letter dated June 4, 2004, by Michael J Madden, Vice President Insurance Auto Auctions; the letter dated June 9, 2004, by Susan Elizabeth Drummond, Foster Pepper & Shefelman PLLC; IAA's "best practices" salvage manual; and IAA's web site it is determined that the proposed use is a permitted use in the MIC/H zoning district. This determination is based on the fact the proposed use is similar to other permitted uses in the MIC/H zoning district such as salvage and wrecking operations. If you have any further questions, please contact me at 206 -431 -3686. incerely lO^ lack Pace Deputy Director Community Developmdnt. 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206- 431 -3665 FOSTER PEPPER & SHEFELMAN PLLC A T T O R N E Y S A T L A W June 9, 2004 Via E-Mail and U.S. Mail City of Tukwila Department of Community Development - Planning Division Steve Lancaster, c/o Minnie Dhaliwal 6300 Southcenter Blvd., Suite 100 Tukwila, WA 98188 RECEIVED JUN 1 0 2004 COMMUNITY DEVELOPMENT Re: Permitting of Use Proposed by Insurance Auto Auction, Inc. Dear Mr. Lancaster: We'represerit Washington Holdings, which will be leasing property in the City of Tukwila to Insurance Auto Auction' Inc: (" IAAI ").'Thisletter'explaiiswhy the Manufacturing :Industrial Ceriter/Heavy ( "MIC/H ")' zoning permits the salvage operation proposed by IAAI. IAAI receives motor vehicles and heavy machinery from insurance company customers and places them in inventory. After obtaining a salvage title, the vehicle is auctioned and promptly removed from IAAI's property. The auctions are not open to the general public, but only to buyers who are licensed and registered through IAAI. This is a classic salvage operation,1 which is permitted outright in the MIC/H. TMC 18.38.020(35).2 1 Salvage is typically defined to include "[s]omething saved from destruction or waste and put to further use." The American Heritage College Dictionary, Houghton.Mifflin Company, 3rd Ed (1997). Also the vehicles salvaged by IAAI are classified by state law as "salvage" vehicles. 2 Note also tliat the processing of vehicles ispermitted outright as Is fhe sale' of lieavy'if achinery:'•' TMC 18.38.020(21) and' (34). LOCAL SETTINGS.SEADOCS- #50441057 -VI -LETTER TO PLANNING DIVISION.DOC Direct Phone (206) 447-7909 Direct Facsimile (206) 749 -2093 E -Mail drums@foster.com 10O ea. -z3' 19o4 Zoo r 1 1 1 1 THIRD AVENUE Suite 3400 SEATTLE Washington 98101 -3299 Telephone (206)447 -4400 Facsimile (206)447 -9700 Website WWW.POSTER.COM ANCHORAGE Alaska PORTLAND Oregon SEATTLE Washington SPOKANE Washington Mr. Steve Lancaster June 9, 2004 Page 2 Should you have any questions, or wish to discuss this further, please do not hesitate to call. Sincerely, FOSTER PEPPER & SHEFELMAN PLLC Susan Elizabeth Drummond cc: Client LOCAL SETTINGS. SEADOCS-#50441057-V I -LETTER TO PLANNING DIVISION.DOC June 4, 2004 Mr. Steve Lancaster c/o Ms. Minnie Dhaliwal Director Department of Community Development City of Tukwila 6300 South Center Boulevard, Suite 100 Tukwila, WA 98188 -2544 Dear Mr. Lancaster. ke INSURANCE AUTO AUCTIONS Insurance Auto Auctions, Inc., (IAAI) a publicly traded company (NASDAQ), founded in 1982, a leader in automotive total loss and specialty salvage services in the United States, provides insurance companies with cost - effective, turnkey solutions to process and sell total - loss and recovered -theft vehicles. The company currently has 75 sites across the United States. Our headquarters is in the Chicago, IL suburb of Schaumburg. IAAI receives motor vehicles from its insurance company customers and places them in inventory. Thereafter, IAA applies for a salvage title from the germane state agency; e.g., D.M.V. Upon receipt of the salvage title, IAA auctions the vehicle at an auction. The vehicles are sold to the highest bidder who then removes the automobile from IAA's property. A summary of the things IAA does not do is as follows: ❑ IAA does not stack vehicles ala a "junkyard" ❑ IAA does not dismantle, "cannibalize," "part out" or take like kind actions on vehicles ❑ IAA is not open to the public; only to licensed and registered buyers ❑ IAA does not park its inventory on public streets ❑ IAA is not a retailer IAA's Operations are usually conducted behind either a wall or privacy fence, subject to local terrain. IAA adheres diligently to all environmental mandates and "best practices" with respect to the collection and disposal of motor vehicle liquids. Under separate cover, I will provide a copy of IAA's "best practices" salvage manual and a directory of our locations throughout the U.S. IAA looks forward to opening for business in Tukwila, WA and to the attendant positive impact on the local economy. Please call me with questions or concerns. Yours very truly, Michael J. Madde Vice President, Real Estate & Development Encl. as noted cc: Kevin Roberts via e-mail Steve Tibble Craig Wrench, Washington Holdings via e-mail Al Robertson, GVA Kidder Mathews via e-mail File Additional information about Insurance Auto Auctions, Inc. is available on the World Wide Web at www.iaai.com 850 East Algonquin Road, Suite 100 • Schaumburg, IL 60173 -3855 • T 847 839 3939 • F 847 839 3678 www.iaai.com Minnie Dhaliygl Preapplication Meeting- Insurance Auto Auction Former Kenworth acility, East Marginal Way Page 1 From: Al Robertson <alr @gvakm.com> To: <saancaster @ci.tukwila.wa.us >, <mdhaliwal @ci.tukwila.wa.us> Date: 6/4/04 9:33AM Subject: Preapplication Meeting- Insurance Auto Auction /Former Kenworth Facility, East Marginal Way Mr. Lancaster & Ms. Dhaliwal, it became apparent during the meeting yesterday that the nature of Insurance Auto Auctions business was not clearly understood. IAAI will be forwarding a letter to you both to clear up any misconceptions of their use. I have attached a link to IAAI's corporate web site to give you both an opportunity to further your understanding of IAAI's business. Upon receipt and review of IAAI's use description we would like to schedule a meeting a soon as possible to resolve any remaining concerns the City may have with respect to IAAI's reutilization of the former Kenworth Facility. Thank you, Al http : / /home.iaai.com /default.aspx < http : / /home.iaai.com /default.aspx> Al Robertson Senior Vice President GVA Kidder Mathews 12886 Interurban Avenue South Seattle, WA 98168 206.248 -7322 fax 206.248 -7342 alr @gvakm.com <mailto:alr @gvakm.com> CC: "Michael Madden (E- mail)" <mmadden @IAAI.com >, "Kevin Roberts (E- mail)" <kroberts @iaai.com >, Chris Corr <ccorr @gvakm.com >, Craig Wrench <cwrench @waholdings.com >, Brent Lower <brentlower @waholdings.com> Minnie Dhaliwal - RE: Paccar addendum request - clarification Page 1 From: Ty Schreiner <TySchreiner @KennedyJenks.com> To: 'Minnie Dhaliwal' <mdhaliwal @ci.tukwila.wa.us> Date: 5/28/04 8:45AM Subject: RE: Paccar addendum request - clarification Hi Minnie, Thank you for looking into the possibility of proceeding with the SFA excavations as a separate portion of this addendum. We are planning to get you a letter from our goetechnical evaluation on Tuesday (6/1/04) and hope that the City will be able to review the information expeditiously so we can proceed with the work. Our letter to you will include: A geotechnical report evaluating the potential for impacts to the bulk -head and rip /rap bank protection that has been stamped by a licensed geotechnical engineer. Recommendations for mitigation of risks of damage to these structures (if any) that may occur as a result of the excavation work. A cross section showing the approximate Iitholgic conditions encountered in close proximity of the bulk -head. In our discussions, you also indicated that Fisheries may have concerns regarding the potential for sedimentation resulting from the excavation work. As indicated in our 12 May 2004 letter requesting the permit addendum, erosion and sedimentation controls will be implemented during performance of this work. A copy of the Temporary Erosion and Sedimentation Plan Details (Sheet D4) was included in our 12 May 2004 letter. With implementation of the Temporary Erosion and Sedimentation Control Plan, we do not anticipate that sedimentation will enter the Duwamish River. Since this information was provided in the original permit and the permit addendum (12 May 2004) letter, is additional information regarding these issues required by the City? Your email also inquired as to whether or not we are planning of doing any dewatering during performance of our work. At this time, we do not anticipate that dewatering will be necessary. However, if for some reason we need to perform dewatering work, the water would be contained onsite in tanks, characterized for chemical constituents and disposed accordingly. In the past when minor dewatering has been performed, the water was disposed of offsite at a permitted facility or discharged to the POTW under the authorization of King County - Metro. Finally, our drawing provided in the 12 May 2004 addendum letter shows the estimated extent of the excavations. In some cases these areas may be slightly larger or smaller depending on conditions encountered in the field. If the area of excavation areas are slightly larger, is any notification required to the City? Thanks again for your assistance. Ty Original Message From: Minnie Dhaliwal [ <mailto :mdhaliwal @ci.tukwila.wa.us> Mirmie Dhaliwal - RE: Paccar addendum request - clarification Page 2 mailto:mdhaliwal @ci.tukwila.wa.us] Sent: Tuesday, May 18, 2004 4:44 PM To: tyschreiner @kennedyjenks.com Subject: Paccar addendum request Hi Ty, As per our conversation, we need the following information to further process your request: 1) Due to the proximity of the proposed excavations to the shoreline bulkhead, please submit a letter from a licensed geotechnical engineer addressing the impact of the proposed excavations on the stability of the existing bulkhead. 2) Are you planning on doing any dewatering? If you have any further questions, you can reach me at 206 - 431 -3685. Minnie Dhaliwal Senior Planner City of Tukwila ,l ANCHOR � ENVIRONMENTAL. L.L.C. Memorandum RECEIVED J 2 2007 DEPT 01= ECOLOGY Anchor Environmental, L.L.C. 1423 3rd Avenue, Suite 300 Seattle, Washington 98101 Phone 206.287.9130 Fax 206.287.9131 To: Maura O'Brien, Brad Helland and Rick Thomas, Department of Ecology NWRO From: James Keithly and David Templeton, Anchor Environmental L.L.C. CC: Kris Flint, U.S. EPA Region,l0; Howard Jensen, Hillis Clark Martin and Peterson; Bill Joyce, Salter Joyce Ziker, PLLC; Carole Robbins, PACCAR Inc.; Meg Strong, AMEC; and Eric Buckler, PACCAR Inc. Date: June 29, 2007 Re: (March 2007 Stormwater and Stormwater Solids Results In partial fulfillment of Exhibit B and Task 2 of Exhibit C of the Agreed Order (AO) No. DE 3599 dated October 4, 2006, attached are the draft stormwater and stormwater solids data for the 8801 East Marginal Way Property (the Property). Four stormwater events and two stormwater solids events are required by the AO. This memorandum presents the October 2006 (Stormwater and Stormwater Solids Event 1) and the March 2007 (Stormwater and Stormwater Solids Event 2); analytical data. The October 2006 results were also included in the Draft Phase I Data Tables and Figures Memorandum dated March 2, 2007 (Anchor 2007). Stormwater Event 3 was collected in May 2007 and the data is pending from the laboratory. Stormwater Event 4 has not occurred. No further sampling of the stormwater solids has been required. This data was collected and analyzed in accordance with the Sediment Evaluation Work Plan (Exhibit B; Anchor 2006). The sampling locations are depicted in Figure 1. The Event 1 and 2 analytical results for stormwater and stormwater solids sampling are presented in Tables 1 and 2, respectively (see also Figures 2 and 3). This memorandum also provides a brief description of the sampling activities and a summary comparing the Event 1 and Event 2 analytical results for Storm -North and Storm - South. Stormwater and Stormwater Solids Collection Event 2 stormwater samples were collected on March 22, 2007 and stormwater solids were collected on March 19, 2007. Stormwater samples at Storm -South were collected by filling bottles directly from the discharge at the end of pipe. At Storm - North, samples were • March 2007 Stormwater and Stormwater Solids Results June 29, 2007 Page 2 collected from the vault using a collapsible pole with a disposable pre - cleaned glass container. These are identical procedures to those used to collect samples during the Event 1. There was no discharge from Boeing stormwater drains AN033 or AN034, so stormwater samples were not collected at these locations, as was the case in Event 1. Storm characteristics and precipitation data were obtained from the weather station at Boeing Field. In the week preceding the sampled rainfall event, there were four recorded rainfall events of 0.05 inches, 0.12 inches, 0.24 inches, and 0.43 inches, all of which occurred at night time. The day prior to stormwater sampling, the measured daily precipitation was 0.24 inches. On March 22, the precipitation was observed to start at 8:15 am and ceased at 12:00 am with a total of 0.08 inches of precipitation. The precipitation data recorded at Boeing Field does not indicate measured rainfall until 1:00 pm on the afternoon of the sampling event; however, variations in rainfall patterns occur and rainfall was accumulating on site prior to the initiation of sampling. Samples were collected at Storm -North at 9:00 am and Storm - South was sampled shortly after at 10:45 am. Stormwater solids were collected by scraping material from the bottom of the vault at Storm -North (the same protocol as used in Event 1). At Storm - South, the outfall pipe was also scraped, but did not contain appreciable solid material for sampling (as also was the case during Event 1). Solids for the Storm -South were collected from four upgradient catch basins, homogenized, and analyzed. The solids material was observed to be oily and had a distinct petroleum odor. The Storm -South catch basins sampled had significantly higher amounts of solids material present than in October 2006. In Event 1, solids were collected from three of the nine catch basins inspected to provide the necessary volume for the Storm - South sample. In comparison, solids were collected from two catch basins of the four inspected to provide the necessary volume for the Storm -South sample in Event 2. Stormwater solids were not collected at the Boeing drains AN033 or AN034 because appreciable solids material was not present. This indicates an appreciable decrease in the volume of accumulated solids since October 2006. March 2007 Stormwater and Stormwater Solids Results June 29, 2007 Page 3 The data reports submitted from Analytical Resources, Inc (ARI) were sent to Laboratory Data Consultants (LDC) of Carlsbad California for an independent data review. All validation findings from LDC were used to qualify the data in Table 1. LDC qualified the data based on the project Quality Assurance Project Plan (QAPP) and SW846 method criteria. These data meet the data quality objectives and are appropriate for their intended use. Stormwater Results The stormwater analytical results for the Event 1 and Event 2 sampling events are contained in Table 1. Event 1(October 2006) stormwater analytical results, when compared to marine chronic water quality criteria, indicated two dissolved metals "(copper and zinc) exceeded criteria for both the Storm -North and Storm -South samples. Detected values of metal constituents were below the applicable marine chronic water quality criteria in October 2006. With the exception of estimated value of 0.011 micrograms per liter (pg/L) of Aroclor 1254, estimated value of 0.011 pg /L for Total PCBs, and 3.2 µg/L for bis(2- ethylhexyl) phthalate, there were no other detections of any other chemicals for Event 1. In comparison, the Event 2 results are generally lower than the Event 1 results. In the March data, only the analytical result for dissolved copper exceeded marine chronic water quality criteria. Detected values of'metal constituents were below the applicable marine chronic water quality criteria in March 2007. There were no other detections of any other chemicals. in Event 2. Stormwater Solids Results Analytical results for stormwater solids were compared to -the Sediment Management Standards (SMS) criteria on a dry weight (dw) basis. The premise behind this conservative screening is that if stormwater solids exceed SMS criteria, there is a potential for these solids to be transported to the Lower Duwamish Waterway and result in a SMS exceedence in the sediments adjacent to the outfall (Table 2). Because stormwater solids typically have very low total organic carbon contents, the solids data is presented on a dw basis and evaluated against the equivalent SMS chemical criteria (e.g., dw basis). r March 2007 Stormwater and Stormwater Solids Results June 29, 2007 Page 4 Some of the stormwater solids analytical results for semivolatile organic compound (SVOC) results have detection limits that are greater than screening criteria. This is due to the relatively high concentrations of polycyclic aromatic hydrocarbons (LPAH and HPAH) chemicals measured in these samples. The effect is more pronounced in the Event 2 samples than the Event 1 samples. This suggestion of matrix interference is also consistent with the observation of an oily characteristic and distinct petroleum odor. In summary, the higher concentration of petroleum - related compounds in the Event 2 samples resulted in a background matrix interference that caused elevated chromatographic baselines, necessitated dilutions, and resulted in higher reporting. limits. The analytical results for stormwater solids in March and October are discussed and compared below on the basis of general chemical groupings. Polycyclic Aromatic Hydrocarbons (PAHs) The analytical results of low molecular weight polycyclic aromatic hydrocarbons (LPAHs) increased from 1,120 micrograms per kilogram (µg /kg) dw, and 1,233 µg /kg dw for the Event 1 samples to 3,460 pg/kg dw and 2,750 pg /kg dw for the Event 2 samples for Storm -North and Storm - South, respectively. Likewise, analytical results of high molecular weight polycyclic aromatic hydrocarbons (HPAHs) results increased from 1,300 pg/kg dw and 7,836 pg/kg dw for the Event 1 samples to 36,020 µg /kg dw and 26,760 pg /kg dw for the Event 2 samples for Storm -North and Storm- South, respectively. The elevated PAH concentrations in the March 2007 samples resulted in a background matrix interference, thus causing higher reporting limits. Polychlorinated Biphenyls (PCBs) For Event 1, PCBs (Aroclors 1254 and 1260) were detected in both Storm -North and Storm -South solids, whereas for Event 2 only Aroclor 1254 was detected at Storm - South. Total PCBs concentrations for Storm -North and Storm -South were 313 and 950 pg/kg dw, respectively for Event 2 samples and the Total PCB concentration in Storm -South was 160 pg /kg dw for the Event 1 sample. March 2007 Stormwater and Stormwater Solids Results June 29, 2007 Page 5 Phthalates The analytical results for bis(2- ethylhexyl)phthalate increased from 10,000 lig/kg dw and 4,500 pg/kg dw for the Event 1 results to 62,000 pg/kg dw and 26,000 µg/kg dw for the Event 2 results for Storm -North and Storm - South, respectively. The maximum concentration for phthalates was 62,000 pg/kg dw for bis(2- ethylhexyl)phthaltate measured at Storm - North. Metals Metals results from Event 2 show a general increase in concentrations over the Event 1 results. In March 2007, metals that exceeded criteria at Storm -North were lead, mercury, and zinc and concentrations were 764 pg/kg dw, 0.9 pg/kg dw, and 1,110 pg/kg dw respectively. The Event 1 results for Storm -North were 175 pg/kg dw, 0.08 pg/kg dw, and 720 pg/kg dw, respectively. In Event 2, metals with the greatest increase in concentration and that exceeded criteria were at Storm -South were lead and zinc and concentrations were 660 pg/kg dw and 860 pg/kg dw, respectively. The Event 1 results for Storm -South were 128 pg /kg dw and 385 µg/kg dw, respectively. Reference Anchor 2006. Sediment Evaluation Work Plan. 8801 East Marginal Way South Property. Exhibit B to Agreed Order. No. DE 3599 dated October 4, 2006. Prepared by Anchor Environmental, L.L.C. Prepared for PACCAR, Inc. June 2006. Anchor 2007. Draft Phase I Data Tables and Figures Memorandum. Prepared by Anchor Environmental, L.L.C. Prepared for PACCAR, Inc. March 2, 2007 List of Tables Table 1 March 2007 and October 2006 Stormwater Data Table 2 March 2007 and October 2006 Stormwater Outfall Solids Data List of Figures Figure 1 Sampling Locations Figure 2 March 2007 and October 2006 Stormwater Data Figure 3 March 2007 and, October 2006 Stormwater Outfall Solids Data 2 Table 1 March 2007 and October 2006 Stormwater Data ,location Sample ID Sample Date Sample Matrix Sample Type Marine Chronic Water Quality ; Criteria (pg/L) Storm -South AN005 -ST- 06101.5 10/15/2006. W N :Storm-South ' AN005 -ST- 070322 , .- 3/22/2007 W N • . Storm -North AN006- ST- 0611015 10/15/2006 W `. N ' Storm _North:. :■•006 -ST- 070322. `.3/22/2007; W ' N • Conventionals (mg /L) Total suspended solids 8.3 3.4 36 10.4 Cyanide 0.005 U 0.005 U 0.005 U 0.005 U Ammonia 0.320 0.033 5.20 1.28 Metals- dissolved (pg /L) Arsenic 36 1.0 0.7 4.0 1.9 Cadmium 9.3 0.5 0.2 0.2 U 0.2 U Chromium* 50* 1.2 1.5 1.0 0.8 Copper 3.1 21. ` 6 1" Lead 8.1 8 4 1U 1U Mercury 0.025 0.02 U 0.02 U 0.02 U 0.02 U Silver 0.2 U 0.2 U 0.2 U 0.2 U Zinc 81 193! 'a 39 107 , 39 Metals -total (pg /L) Chromium VI 50 R 0.011 U R 0.011 U Arsenic 1.2 . 0.6 6.7 2.4 Cadmium 0.7 0.2 U 0.2 U 0.2 Chromium 2.4 1.2 1.3 1.0 Copper 27.3 8.8 11.2 7 Lead. 26 1 U 1 2 Mercury 0.02 U 0.02 U 0.02 U 0.02 U Silver 0.2 U 0.2 U 0.2 U 0.2 U - Zinc • 227 35 83 46 PCBs (pg /L) - Aroclor 1016 - 0.010 U - 0.010 U 0.010 U 0.010 U Aroclor 1221 - 0.010 U 0.010 U 0.010 U • 0.010 U Aroclor 1232 - 0.010 U 0.010 U 0.010 U 0.010 U Aroclor 1242 -- 0.010 UJ 0.010 U 0.010 UJ 0.010 U Aroclor 1248 -- 0.010 UJ 0.010 U 0.010 UJ 0.010 U Aroclor 1254 - 0.011 J 0.010 U 0.010 U 0.010 U Aroclor 1260 -- 0.028 U 0.010 U 0.010 UJ 0.010 U ' Aroclor 1262 -- 0.019 UJ 0.010 U 0.010 UJ 0.010 U Table 1 March 2007 and October 2006 Stormwater Data F Location x Sam le ID R Sample=Date Sample Matrix Sample Type ' y Marine°. Chronic Water Quality :.:Criteria`(Ng/L)` St o�r�rnTS`-oouth ' . AN005= ST- 061015AN005 �,� 10/15/2006 W - -N_ ` Storm -So -07,* 0322 3/22/2007 W - 8N Sto m =North AN006�- ST.069015AN006,ST 10/15/2006 Y., T W hs r ._.. N Sterm' '' North 070322: '3/22/2007 W N Aroclor 1268 - -- 0.010 UJ 0.010 U 0.010 UJ 0.010 U Total PCBs (SMS) 0.03 0.011 J 0.01 U 0.010 U 0.01 U SVOCs (pg /L) 1,2,4 - Trichlorobenzene 1.0 U 1.0 U 1.0 U 1.0 U 1,2- Dichlorobenzene 1.0 U 1.0 U 1.0 U 1.0 U 1,3- Dichlorobenzene 1.0 U 1.0 U 1.0 U 1.0 U 1,4- Dichlorobenzene 1.0 U 1.0 U 1.0 U 1.0 U 2,2'- oxybis (1- chloropropane) 1.0 U 1.0 UJ 1.0 U 1.0 UJ 2,4,5 - Trichlorophenol 5.0 U 5.0 U 5.0 U 5.0 U 2,4,6 - Trichlorophenol 5.0 U 5.0 U 5.0 U 5.0 U 2,4- Dichlorophenol 5.0 U 5.0 U 5.0 U 5.0 U 2,4- Dimethylphenol 1.0 U 1.0 U 1.0 U 1.0 U 2,4- Dinitrophenol 10 UJ . 10 U' 10 UJ 10 U 2,4- Dinitrotoluene 5.0 U 5.0 U 5.0 U 5.0 U 2,6- Dinitrotoluene 5.0 U 5.0 U 5.0 U 5.0 U 2- Chloronaphthalene 1.0 U 1.0 U 1.0 U 1.0 U 2- Chlorophenol 1.0 U 1.0 U 1.0 U 1.0 U 2- Methylnaphthalene 1.0 U 1.0 U 1.0 U 1.0 U 2- Methylphenol 1.0 U 1.0 U 1.0 U 1.0 U 2- Nitroaniline 5.0 U 5.0 U 5.0 U, 5.0 U 2- Nitrophenol 5.0 U 5.0 U 5.0 U 5.0 U 3,3'- Dichlorobenzidine 5.0 U 5.0 U 5.0 U 5.0 U 3- Nitroaniline 5.0 U 5.0 U 5.0 U 5.0 U 4,6- Dinitro -2- methylphenol 10 U 10 U 10 U 10 U 4- Bromophenyl - phenylether• 1.0 U 1.0 U 1.0 U 1.0 U 4- Chloro -3- methylphenol 5.0 U' 5.0 U 5.0 U 5.0 U 4- Chloroaniline 5.0 U 5.0 U 5.0 U 5.0 U 4- Chlorophenyl- phenylether 1.0 U 1.0 U 1.0 U 1.0 U 4- Methylphenol 1.0 U 1.0 U 1.0 U 1.0 U 4- Nitroaniline 5.0 U 5.0 U 5.0 U 5.0 U 4- Nitrophenol 5.0 U 5.0 U 5.0 U 5.0 U Acenaphthene 1.0 U 1.0 U 1.0 U 1.0 U Table 1 March 2007 and October 2006 Stormwater Data Location ample D SS: ampieDate SamplekMatrix ample,Type Marine Chronic Water Quality*- - Cnteria'(p /L).- Storm =S outh L - F,, ' 2 r,l AN005 -ST06015 10' 0/1512006 W _ . N�.= ." torm South 4„. 3f .. , � AN05 T 7032 3122/2007' 2 > Y `W� N r StomNorth M Y`tr g-h- ,'r , 5 ' AN006 -ST 061015 _ 0/15/2006 W ` ' t .N° 1 Storm No ^?.t W AN006 -ST4.07 r} 0t h3KY 2` 2 07 3/22/20` N Acenaphthylene 1.0 U 1.0 U 1.0 U 1.0 U _ Anthracene 1.0 U 1.0 U 1.0 U 1.0 U Benzo(a)anthracene - 1.0 U 1.0 U 1.0 U 1.0 U Benzo(a)pyrene 1.0 U 1.0 U 1.0 U 1.0 U Benzo(b)fluoranthene 1.0 U 1.0 U 1.0 U 1.0 U Benzo(g,h,i)perylene 1.0 U 1.0 U 1.0 U 1.0 U Benzo(k)fluoranthene 1.0 U 1.0 U 1.0 U 1.0 U Benzoic acid 10 U 10 UJ 10 U 10 UJ Benzyl alcohol 5.0 U 5.0 UJ 5.0 U 5.0 UJ bis(2- Chloroethoxy)methane 1.0 U 1.0 U 1.0 U 1.0 U bis(2- Chloroethyl)ether 1.0 U 1.0 U 1.0 U 1.0 U bis(2- Ethylhexyl)phthalate 3.2 1.0 U 1.0 U 1.0 U Butylbenzylphthalate 1.0 lJ 1.0 U 1.0 U 1.0 U Carbazole 1.0 U 1.0 U _ 1.0 U 1.0 U Chrysene 1.0 U 1.0 U 1.0 U 1.0 U Dibenzo(a,h)anthracene 1.0 U 1.0 U . 1.0 U 1.0 U Dibenzofuran 1.0 U 1.0 U 1.0 U 1.0 U Diethylphthalate _ 1.0 U 1.0 U 1.0 U 1.0 U Dimethylphthalate 1.0 U 1.0 U 1.0 U 1.0 U Di- n- butylphthalate 1.0 U 1.0 U 1.0 U 1.0 U Di- n- octylphthalate 1.0 UJ 1.0 U 1.0 U 1.0 U Fluoranthene 1.0 U 1.0 U 1.0 U 1.0 U Fluorene 1.0 U 1.0 U 1.0 U 1.0 U Hexachlorobenzene 1.0 U 1.0 U 1.0 U -1.0 U Hexachlorobutadiene 1.0 U 1.0 U 1.0 U 1.0 U Hexachlorocyclopentadiene 5.0 U • 5.0 U 5.0 U 5.0 U Hexachloroethane 1.0 U 1.0 U 1.0 U 1.0 U Indeno(1,2,3- cd)pyrene 1.0 U 1.0 U 1.0 U 1.0 U Isophorone 1.0 U 1.0 U 1.0 U 1.0 U Naphthalene - 1.0 U 1.0 U 1.0 U 1.0 U Nitrobenzene 1.0 U 1.0 U 1.0 U ' 1.0 U n- Nitroso -di -n- propylamine 5.0 U 5.0 U 5.0 U 5.0 U/ Table 1 March 2007 and October 2006 Stormwater Data 5 s Location Sample ID Sample'. Date Sample'Matrix Sample Type "'£ .1;" ``€ Marine'Chronic Water,Quality i- Criteria (pg /L) Sform South AN000�5 -ST 061015 x-10/ :15/2006 ;Storm S;o th ` � A.�N00 -ST,= 070322 3122/2007` Sto m North AN0�06 -ST 061015 1045/2006' • as tStorn North`w` AN006 ST 070322 § _ 3/22/2007 W n- Nitroso -di- phenylamine 1.0 UJ 1.0 U 1.0 UJ 1.0 U Pentachlorophenol 7.9 5.0 U 5.0 U 5.0 U 5.0 U Phenanthrene 1.0 U 1.0 U 1.0 U 1.0 U Phenol 1.0 U 1.0 U 1.0 U 1.0 U Pyrene 1.0 U 1.0 U 1.0 U 1.0 U Total benzofluoranthenes (SMS) 1 U 1 U 1_U 1 U Total LPAH (SMS) 1 U 1 U 1 U 1 U Total HPAH (SMS) 1 U , 1 U 1 U 1 U Notes: Analyte exceeds Marine Chronic Water Quality Criteria *Chromium criteria is for Cr(VI) Bold = detected result mg /L = milligrams per liter µg /L = micrograms perliter J = estimated value U = compound was analyzed but not - detected UJ = estimated detection limit R = rejected (SMS) = calculated per Sediment Management Standards Table 2 March 2007 and October 2006 Stormwater Outfall Solids Data Location Sample ID Sample Date Sediment Management Standards (SMS) . • Storm -South . AN005 -CB- 061016 10/16/2006 Storm- South AN005- 070319. • 3/19/2007- Storm -North AN006 -CB- 061016 , 10/16/2006 `..Storm -North : 'AN006- 070319 ' 3/19/2007 • Boeing Drain ' AN033 -CB- 061016 -- 10/16/2006 SQS* CSL* Conventionals (%) %Moisture -- -- -- -- -- Total solids -- -- 63.60 8.35 57.50 8.42 90.40 Total Organic Carbon - - 2.64 48.20 10.8 26.90 3.08 Grain Size ( %) Gravel -- -- 1.9 2.6 74.8 0.9 -- Sand -- -- 85.3 78.8 20.4 27.4 -- Sand, Very Coarse -- -- 2.2 6.2 _ 5.4 1.6 -- Sand, Coarse -- - 5.5 19.2 5.4 3.3 -- Sand, Medium - - 26.0 27.2 5.2 5.5 -- Sand, Fine -- -- 35.7 16.8 2.8 7.3 -- Sand, Very Fine -- -- 15.9 9.4 1.6 9.7 -- Silt -- -- 11.5 17.5 4.4 65.2 -- Silt, Coarse -- -- 6.0 10.5 2.1 29.0 -- Silt, Medium -- -- 3.2 3.7 1.4 18.7 -- Silt, Fine -- -- 1.5 2.1 0.6 11.7 -- Silt, Very Fine -- -- 0.8 1.2 0.3 5.8 -- Fines - - - 12.7 18.6 4.8 71.6 -- Metals (mg /kg dw) Arsenic 57 93 13.0 J 5.1 7.2 J 32.4 - 10.3 J Cadmium 5.1 6.7 2.5 4.1 7.1 6.8 15 Chromium 260 270 67.3 J 77.4 80.8 J 125 114 J Copper 390 530 134 J 318 111 J 264 112 J Lead 450 530 128 660 175 764 Mercury 0.41 0.59 0.30 0.09 J 0.08 0.9 J 0.12 Silver 6.1 6.1 1.4 0.3 0.3 U 1.6 0.3 Zinc 410 960 385 J 860., 720•J 1110 6710 J PCBs (pg /kg dw) Aroclor 1016 -- -- 99 U 59 U 49 U 200 U 670 U Aroclor 1221 -- -- 99 U 59 U 49 U 200 U 670 U Aroclor 1232 -- -- 99 U 59 U 49 U 200 U 670 U Aroclor 1242 -- -- 99 U 59 U 49 U 200 U 670 U Aroclor 1248 -- -- 99 U 59 U 49 U 200 U 670 U Aroclor 1254 -- -- 160 250 49 U 700 670 U Aroclor 1260 -- -- 99 U 63 J 49 U 250 670 U Table 2 March 2007 and October 2006 Stormwater Outfall Solids Data • Location Sample. ID Sample Date Sediment .. Management • Standards (SMS) -. Storm-South AN005- CB- 061016 10/16/2006 . • Storm -South . AN005- 070319 3/19/2007 Storm- North , AN006 -CB- 0610_1.6 10/16/2006 Storm -North AN006 -070319:. 3/19/2007 . Boeing Drain AN033 -CB- 061016 10/16/2006 SQS* CSL* Aroclor 1262 -- -- 99 U 59 U 49 U 200 U 670 U Aroclor 1268 -- -- 99 U 59 U 49 U 200 U 670 U Total PCBs (SMS) 130 1000 160 313 49 U 950 670 U SVOCs (Ng /kg dw) . Naphthalene 2100 2400 60 U 350 U 200 U 620 U 60 U Acenaphthylene 1300 1300 60 U 350 U 200 U 620 U 60 U Acenaphthene 500 730 160 350 U 120 J 620 U 110 Fluorene 540 1000 93 350 U 220 620 U 78 Phenanthrene 1500 5400 810 2300 780 3000 470 Anthracene 960 4400 170 450 200 U 460 J 63 2- Methylnaphthalene 670 1400 60 U 350 U 460 620 U 60 U Fluoranthene , 1700 2500 1600 7100 380 9500 1100 . Pyrene 2600 3300 1600 2900 J 230 5000 J 980 Benzo(a)anthracene 1300 1600 330 1800 J 200 U 2200 J 250 Chrysene 1400 2800 1000 4600 J 370 4600 J 700 Benzo(b)fluoranthene -- -- 930 3200 J 170 J 4300 J 750 J Benzo(k)fluoranthene -- -- 1000 3300 J 150 J 4000 J 750 Benzo(a)pyrene 1600 3000 680 2200 J 200 U 2500 J 600 J Indeno(1,2,3- cd)pyrene 600 690. 280 750 J 200 U 1500 J 170 J Dibenzo(a,h)anthracene 230 540 160 350 U 84 320 J 56 Benzo(g,h,i)perylene 670 720 320 910 J 200 U 2100 J 170 J 1,3- Dichlorobenzene -- -- 60 U 350 U 200 U 620 U 60 U 1,4- Dichlorobenzene 110 120 18 350 U 6.2 U 620 U ` 6.0 U 1,2- Dichlorobenzene 35 50 6.1 U 350 U 6.2 U 620 U 6.0 U 1,2,4- Trichlorobenzene 31 51 6.1 U 350 U 6.2 U 620 U 13 UY Hexachlorobenzene 22 - 70 6.1 U 350 U 6.2 U 620 U 6.0 U Dimethylphthalate 71 160 210 290 J 200 U 630 180 Diethylphthalate 200 1200 60 U 350 U 200 U 620 U 60 U Di- n- butylphthalate 1400 5100 120 350 U 200 U 870 74 Butylbenzylphthalate 63 900 280 5100 J 1100 1300 J 40 bis(2- Ethylhexyl)phthalate 1300 1900 4500 26000 J 10000 62000 3600 Di- n- octylphthalate 6200 -- 280 1800 J 3100 3100 J 700 Dibenzofuran 540 700 60 U 350 U 200 U 620 U 60 U Hexachloroethane -- -- 60 U 350 U 200 U 620 U 60 U Hexachlorobutadiene 11 120 6.1 U 350..0 - 6.2 U 620 U - . 6.0 U Table 2 March 2007 and October 2006 Stormwater Outfall- Solids Data Location Sample ID Sample Date Sediment . Management , 'Standards (SMS) Storm-South AN005 -CB- 061016 ' 10/16/2006 Storm-South AN005- 070319 3/19/2007 . . Storm-North ' AN006- CB- 061.016 10/16/2006'. : Storm -North AN006- 070319 - .' 3/19/2007 Boeing Drain AN033 -CB- 061016' 10/16/2006: SQS* CSL* n- Nitrosodiphenylamine 28 40 40 UY 350 U 62 UY 620 U • 210 UY Total benzofluoranthenes (SMS) 3200 3600 1930 6500 _ 320 8300 1500 Total•LPAH (SMS) 5200 13000 1233 2750 1120 3460 721 Total HPAH (SMS) 12000 17000 7836 26760 1300 36020 5500 Phenols (pg /kg dw) Phenol 420 1200 60 U 480 U 200 U 620 U 60 U 2- Methylphenol 63 72 7.9 350 U 6.2 U ' 620 U 6.0 U 4- Methylphenol 670 800 43 J 7100 200 U 14000 38 J 2,4- Dimethylphenol 29 72 6.1 U 350 U 6.2 U 620 U 10 UY Pentachlorophenol 360 690 30 U 1800 U 31 U 3100 U 30 U Misc Extractables (pg /kg dw) Benzyl alcohol 57 73 30 U 940 920 620 U 30 U Benzoic acid 650 650 600 U 4200 2000 U 3700 J 600 UJ Notes: Analyte exceeds SQS Analyte exceeds CSL Analyte Detection Limit exceeds SQS or CSL SQS = Sediment Quality Standards CSL = Cleanup Screening Levels * Dry weight criteria (LAET /2LAET) critiera from SMS were applied for PCBs and SVOCs Bold = detected result mg/kg dw = milligrams per kilogram dry weight µg /kg dw = micrograms per kilogram dry weight J = estimated value U = compound was analyzed but not detected UJ = estimated detection limit UY = raised reporting limit due to background interference. Compound not detected. (SMS) = calculated per Sediment Management Standards it OA*, 29 !I ?Attt.033 ! PANHld4*�. O A N =030 AN.-028O 0 a lh'`t ,0; AN 02 %. fii•rn urth' hee Ile wall r� ....'50- s .. ^•8:- .�Ly... -�:�R" � 1�� -. • AN -011 0 ANSI_ tmgr_l �O er�`�:AN-dj. A See e0 �:. U • 1'` • ,. • OAN-009 `�dep5 AN -008.0 O.AN�003- 1.' t • Surface Sediment Sampling Location • Seep Sampling Location Stormwater /Catch Basin Sampling Location Previous Sampling Locations • Seeps O Stormwater Outfalls. Navigation Channel Property Boundaries AC • • ANCHOR ENVIRONMENTAL, L.L.C. 0 40 80 Scale in Feet Figure 1 Sampling Locations 8801 East Marginal Way South Property 414 E E 0) 0 0 0 E to co _c co ro O. (3) One or More Analytes Exceed Marine Chronic Water Quality Criteria Stormwater Outfalls ANCHO ENVIRONMENTAL, L.L.C. 0 40 80 Scale in Feet Analyte exceeds Marine Chronic Water Quality Criteria [ _I October 2006 Results March 2007 Results Figure 2 March 2007 and October 2006 Stormwater Data 8801 East Marginal Way South Property • •0 1 AN-008, Cadmium Zinc Butylbenzylphthalate bls(2-Ethylhexyl)phthalate Ben I alcohol 7.1 mg/kg dw 720 J mg/kg dw 1,100 pg/kg dw 10,000 pg/kg dw 920 ./k. dw f..3•4•440., 040 AN-006 Cadmium Lead Mercury Zinc Total PCBs (SMS) Phenanthrene Fluoranthene Pyrene Benzo(a)anthracene Chrysene Benzo(a)pyrene Indeno(1,2,3-cd)pyrene Dibenzo(a,h)anthracene Benzo(g,h,i)perylene Dimethylphthalate Butylbenzylphthalate bis(2-Ethylhexyl)phthalate Total benzofluoranthenes (SMS) Total HPAH (SMS) 4-Methylphenol Benzoic acid mg/kg dw mg/kg dw mg/kg dw mg/kg dw pg/kg dw pg/kg dw pg/kg dw pg/kg dw pg/kg dw pg/kg dw pg/kg dw pg/kg dw pg/kg dw pg/kg dw pg/kg dw pg/kg dw pg/kg dw pg/kg dw pg/kg dw pg/kg dw •/k. dw Cadmium Lead Zinc Dimethylphthalate bls 2-Eth lhex I •hthalate 15 mg/kg dw 504 mg/kg dw 6,710 J mg/kg dw 180 pg/kg dw 3 600 ./k. dw 4.a.0 ViAV ttivari AN-005 Total PCBs (SMS) Dimethylphthalate Butylbenzylphthalate bis 2-Eth !hex •hthalate AN-005 Lead Zinc Total PCBs (SMS) Phenanthrene Fluoranthene Pyrene Benzo(a)anthracene Chrysene Benzo(a)pyrene Indeno(1,2,3-cd)pyrene Benzo(g,h,flperylene Dimethylphthalate Butylbenzylphthalate bis(2-Ethylhexyl)phthalate Total benzofluoranthenes (SMS) Total HPAH (SMS) 4-Methylphenol Benzyl alcohol Benzoic acid 660 860 313 2,300 7,100 2,900 J 1,800 J 4,600 J 2,200 J 750 J 910 J 290 J 5,100 J 26,000 J 6,500 26,760 7,100 940 4 200 mg/kg dw mg/kg dw pg/kg dw pg/kg dw pg/kg dw pg/kg dw pg/kg dw pg/kg dw pg/kg dw pg/kg dw pglkg dw pglkg dw pg/kg dw pg/kg dw pg/kg dw pg/kg dw pg/kg dw pg/kg dw •/k. dw One or More Analytes Exceed CSL Criteria ‘1- ANC ENVIRONMENTAL, L.L.C. 0 0 40 80 Scale in Feet Analyte Exceeds SOS Analyte Exceeds CSL — IOctober 2006 Results March 2007 Results Dry weight criteria (LAET/2LAET) from SMS were applied for PCBs and SVOCs. Figure 3 March 2007 and October 2006 Stormwater Outfall Solids Data 8801 East Marginal Way South Property AI* S% �. I ENY R NCHOR Memorandum RECEIVED hhi., J 5 2007 DEPT Or ECOLOGY Anchor Environmental, L.L.C. 1423 3rd Avenue, Suite 300 Seattle, Washington 98101 Phone 206.287.9130 Fax 206.287.9131 To: Maura O'Brien, Brad Helland and Rick Thomas, Department of Ecology NWRO From: James Keithly and David Templeton, Anchor Environmental L.L.C. CC: Kris Flint, U.S. EPA Region 10; Howard Jensen, Hillis Clark Martin and Peterson; Bill Joyce, Salter Joyce Ziker, PLLC; Carole Robbins, PACCAR Inc.; Meg Strong, AMEC Date: March 2, 2007 Re: Draft Phase 1 Data Tables and Figures The attached Draft Phase 1 Data Tables and Figures are submitted in compliance with Exhibit B and Task 2 of Exhibit C to Agreed Order No. DE 3599 dated October 4, 2006. The Draft Phase 1 Data Tables and Figures contain sediment, seep water, stormwater, and stormwater solids data for the 8801 East Marginal Way Property (the Property) collected and analyzed in accordance with the Sediment Evaluation Work Plan (Exhibit B; Anchor 2006). The sampling locations are presented in Figure 1 and Table 1 presents the reason each sample was collected. The chemical results are presented in Tables 2 through 7 and on Figures 2 through 6. Below we provide a brief description of the sampling activities conducted to collect surface sediment, stormwater solids, seep water, and stormwater at the Property. Stormwater and Stormwater Solids Collection Stormwater samples were collected on October 15, 2006 and stormwater solids were collected on October 16, 2006. Stormwater' samples at Storm -South were collected by filling bottles directly from the discharge at the end of pipe. At Storm - North, samples were collected from the vault using a collapsible pole with a disposable pre- cleaned glass container. There was no discharge from either Boeing stormwater drain (AN033 and AN034), so stormwater samples were not collected at these locations. Data describing the characteristics of this storm were obtained from the weather station at Boeing Field. The preceding two weeks were dry weather and daily precipitation totals were less than or equal to 2 one - hundredths of an inch (50.02). On October 15, rain started Draft Phase 1 Data Tables and Figure March 2, 2007 Page 2 falling at 6am and ceased at 10am with 0.11 inches of total precipitation. Samples were collected at Storm -North at 8:30am and Storm -South was sampled shortly after 9am. Stormwater solids were collected by scraping material from the bottom of the vault at Storm - North. At Storm - South, the pipe did not contain any solid material, so solids were collected from several upgradient catch basins, homogenized, and analyzed. Stormwater solids were also collected from one of the Boeing drains (AN033), but not at the second drain (AN034). The second drain (AN034) was not sampled due to health and safety concerns arising from the apparently irregular energizing of the electric fence (i.e., shocks received by sampling personnel). Surface Sediment Collection Surface sediment (0 -10 cm) was collected at 22 stations on October 24 and October 25, 2006. A van Veen sampler was used at most stations, but it was necessary to use Eckman grab sampler where soft sediments prevented collection of an acceptable sample using the van Veen grab. To ensure that seep sediments were co- located with the seeps, these four samples were collected during the seep sampling event on December 4 and 5 and the collection procedures used are discussed below. Seep Water and Co- located Surface Sediment Collection Seep water and co-located sediment samples were collected on December 4 and 5. Because the seeps are only exposed at low tide (roughly +1.5 to 0 feet mean lower low water [MLLW]) sample collection was scheduled to coincide with a negative tide event. This sampling event was. slightly delayed because the first negative tides targeted coincided with flood stage river levels. Seep water samples were collected as described in the Sediment Evaluation Work Plan (SEWP; Anchor 2006) using a stainless steel well point sampler and a peristaltic pump and co-located seep sediments were collected using a stainless steel spoon and bowl. Seep 1 was not found in the field and there were no seeps observed along the section of bank between seep 2 and seep 6. Because seeps 2, 3, and 4 are all in close proximity to one . another and because seeps 2 and 4 were sampled, it was decided to sample seep 6 to replace Table 5 Stormwater Duffel! Solids Data Location ID Sample ID Sample Date , Sediment Management Standards (SMS) ' : AN -005 AN005- CB- 061016 1011612006. N/AP. `s : AN -006 AN006- CB- 061016 10/16/2006 N/AP - 01-033 AN033 -CB- 061016: r 1.0116/2006 N /AP Depth Interval , ; SQS' � _ CSL* . Conventionals ( %) %Moisture - - - - - Total solids - - 63.60 57.50 90.40 Total Organic Carbon -- -- - 2.64 10.8 3.08 Grain Size ( %) Gravel - - 1.9 74.8 -- Sand - - 85.3 20.4 - Sand, Very Coarse -- -- 2.2 5.4 -- Sand, Coarse -- -- 5.5 5.4 - Sand, Medium - -- 26.0 5.2 -- Sand, Fine - -- 35.7 2.8 -- Sand, Very Fine -- -- 15.9 1.6 -- Silt - - 11.5 4.4 -- Silt, Coarse -- -- 6.0 2.1 -- Silt, Medium -- -- 3.2 1.4 - Silt, Fine - - 1.5 0.6 -- Silt, Very Fine -- -- - 0.8 0.3 - Fines - - 12.7 4.8 -- Metals (mg /kg dw) Arsenic 57 93 13.0 J 7.2 J 10.3 J Cadmium 5.1 ' 6.7 2.5 7.1 15 Chromium 260 270 67.3 J 80.8 J 114 J Copper 390 530 134 J 111 J . 112 J Lead 450 530 128 175 Mercury 0.41 0.59 0.30 0.08 0.12 Silver 6.1 6.1 1.4 0.3 U 0.3 Zinc 410 960 385 J :720LLJ- w4 ...,.;, 6710 J PCBs (pg /kg dw) Aroclor 1016 - -- 99 U 49 U 670 U Aroclor 1221 -- -- 99 U 49 U 670 U Aroclor 1232 -- -- 99 U 49 U 670 U _� 670 U ... Aroclor 1242 -- -- 99 U 49 U Aroclor 1248 -- - 99 U 49 U 670 U Aroclor 1254 -- -- 160 49 U 670 U Aroclor 1260 -- - 99 U 49 U 670 U Aroclor 1262 -- -- 99 U 49 U 670 U Aroclor 1268 - -- 99 U 49 U 670 U Total PCBs (SMS) 130 1000 :160 49 U , } -i 670 U Y ,M:::-Ki., SVOCs (pg /kg dw) Naphthalene 2100 2400 60 U 200 U 60 U Acenaphthylene 1300 1300 60 U 200 U 60 U Acenaphthene 500 730 160 120 J 110 Fluorene 540 1000 93 220 78 Phenanthrene 1500 5400 810 780 470 Anthracene 960 4400 170 200 U 63 2- Methylnaphthalene 670 1400 60 U 460 60 U Fluoranthene 1700 2500 1600 380 1100 Pyrene 2600 3300 1600 230 980 Benzo(a)anthracene 1300 1600 330 200 U 250 Chrysene 1400 2800 1000 370 700 Benzo(b)fluoranthene -- -- 930 170 J 750 J TechincaI Memorandum 8801 East Marginal Way South Property March 2007 030249 -02 Table 5 Stormwater Outfall Solids Data Location ID Sample ID Sample Dater :Sediment Management Standards (SMS)„ AN -005 AN005 -CB- 061016: 10116/2006 1 WO `- . -AN =006 AN006 -CB -061016 ' 10/1612006 . NAP-- AN 7Q33 AN033 -CB- 061016 10/16/2006 NEAP. ?` Dept interval'. ';SQS* . =: CSL*. Benzo(k)fluoranthene — -- 1000 150 J 750 Benzo(a)pyrene 1600 3000 680 200 U 600 J Indeno(1,2,3- cd)pyrene 600 690 280 .200 U 170 J Dibenzo(a,h)anthracene 230 540 160 84 56 Benzo(g,h,i)perylene 670 720 320 200 U 170 J 1,3- Dichlorobenzene — — 60 U 200 U 60 U 1,4- Dichlorobenzene 110 120 18' 6.2 U 6.0 U 12- Dichlorobenzene 35 50 6.1 U 6.2 U 6.0 U 1,2,4 - Trichlorobenzene 31 51_ 6.1 U 6.2 U 13 UY Hexachlorobenzene 22 70 6.1 U 6.2 U 6.0 U Dimethylphthalate 71 160 210 F "ti' . 200 ftW `-1; `' 180 - Diethylphthalate 200 1200 60 U 200 U 60 U Di- n- butylphthalate 1400 5100 120 200 U 74 Butylbenzylphthalate 63 900 _ 280:i. 1100 40 bis(2- Ethylhexyl)phthalate 1300 1900 4500 10000. 3600 Di- n- octylphthalate 6200 — 280 3100 700 Dibenzofuran 540 700 60 U 200 U 60 U Hexachloroethane -- -- 60 U . 200 U 60 U Hexachlorobutadiene 11 120 6.1 U 6.2 U 6.0 U n- Nitrosodiphenylamine 28 40 T J ' „x40 11,;', - 'a ; 0XE ,Mr S , .` :._11 1F •• `_ Total benzofluoranthenes (SMS) 3200 3600 1930 320 1500 Total LPAH (SMS) 5200 13000 1233 1120 721 Total HPAH (SMS) 12000 17000 7836 1300 5500 Phenols (pg/kg dw) Phenol 420 1200 60 U 200 U 60 U 2- Methylphenol 63 72 7.9 6.2 U 6.0 U 4- Methylphenol 670 800 43 J 200 U 38 J 2,4- Dimethylphenol 29 72 6.1 U 6.2 U 10 UY Pentachlorophenol 360 690 30 U 31 U 30 U Misc Extractables (Ng /kg dw) Benzyl alcohol 57 73 30 U 920 30 U Benzoic acid 650 650 600 U . 06Q`U 600 UJ Notes: Analyte exceeds SQS Analyte exceeds CSL Analyte Detection Limit exceeds SQS or CSL SQS = Sediment Quality Standards CSL = Cleanup Screening Levels ” Dry weight criteria (LAET / 2LAET) critiera from SMS were applied for PCBs and SVOCs Bold = detected result mg/kg dw = milligrams per kilogram dry weight µg/kg dw = micrograms per kilogram dry weight J = estimated value U = compound was analyzed but not detected UJ = estimated detection limit UY = raised reporting limit due to background interference. Compound not detected. (SMS) = calculated per Sediment Management Standards N /AP = not applicable Techincal Memorandum 8801 East Marginal Way South Property March 2007 030249 -02 Table 6 Stormwater Data Location ID Sample. ID . = .. Sample Date, Sample Matnxp Sample Type : Marine Chronic . Water Quality = Criteria (pg/L) AN -005 AN005ST -061015 ; 10/1512006 W AN 006 AN006ST- 061015 10115/2006 W ' Conventionals (mg /L) Cyanide 0.005 U 0.005 U N- Ammonia 0.320 5.20 Metals - Dissolved (pg /L) Arsenic 36 1.0 4.0 Cadmium 9.3 0.5 0.2 U Chromium 50* 1.2 1.0 Copper 3.1 21.3: 9.6'.:, Lead 8.1 8 1 U Mercury 0.025 0.02 U 0.02 U Silver 0.2 U 0.2 U Zinc 81 ;;'193. ,107 Metals - Total (pg /L) Chromium VI 50 R R Arsenic 1.2 6.7 Cadmium 0.7 0.2 U Chromium 2.4 1.3 Copper 27.3 11.2 Lead 26 1 Mercury 0.02 U 0.02 IJ Silver 0.2 U 0.2 U Zinc 227 83 PCBs. (pg /L) Aroclor 1016 0.010 U 0.010 U Aroclor 1221 0.010 U 0.010 U Aroclor 1232 0.010 U 0.010 U Aroclor 1242 0.010 UJ 0.010 UJ Aroclor 1248 0.010 UJ 0.010 UJ Arodor 1254 0.011 J 0.010 U Aroclor 1260 0.028 U 0.010 UJ Aroclor 1262 0.019 UJ 0.010 UJ Aroclor 1268 0.010 UJ 0.010 UJ Total PCBs 0.03 0.011 J 0.010 U SVOCs (pg /L) 1,2,4 - Trichlorobenzene 1.0 U 1.0 U 1,2- Dichlorobenzene 1.0 U 1.0 U 1,3- Dichlorobenzene 1.0 U 1.0 U 1,4- Dichlorobenzene 1.0 U 1.0 U 2,2'- oxybis (1- chloropropane) 1.0 U 1.0 U 2,4,5 - Trichlorophenol 5.0 U 5.0 U 2,4,6 - Trichlorophenol 5.0 U 5.0 U 2,4- Dichlorophenol 5.0 U 5.0 U 2,4- Dimethylphenol 1.0 U 1.0 U 2,4- Dinitrophenol 10 UJ 10 UJ 2,4- Dinitrotoluene 5.0 U 5.0 U 2,6- Dinitrotoluene 5.0 U 5.0 U 2- Chloronaphthalene 1.0 U 1.0 U Techinical Memorandum 8801 East Marginal Way South Property March 2007 030249 -02 Table 6 Stormwater Data Location ID , Sample Sample,Date 'Marine. Sample Matnx .Sample Type .':Criteria(pglL) , Chronic -<Water.Quality AN -005 AN005S61015 -0. ;10115/2006 W" . A6 AN006ST- 06101' 5 1011512006 W -; 2- Chlorophenol 1.0 U 1.0 U 2- Methylnaphthalene 1.0 U • 1.0 U. 2- Methylphenol .1.0 U 1.0 U 2- Nitroaniline 5.0 U 5.0 U 2- Nitrophenol 5.0 U 5.0 U 3,3'- Dichlorobenzidine 5.0 U 5.0 U 3- Nitroaniline 5.0 U 5.0 U 4,6- Dinitro -2- methylphenol 10 U 10 U 4- Bromophenylphenylether 1.0 U 1.0 U 4- Chloro- 3- methylphenol 5.0 U 5.0 U 4- Chloroaniline 5.0 U 5.0 U 4- Chlorophenylphenylether 1.0 U 1.0 U 4- Methylphenol 1.0 U 1.0 U 4- Nitroaniline 5.0 U 5.0 U 4- Nitrophenol 5.0 U 5.0 U Acenaphthene 1.0 U 1.0 U Acenaphthylene 1.0 U 1.0 U Anthracene 1.0 U 1.0 U Benzo(a)anthracene 1.0 U 1.0 U Benzo(a)pyrene 1.0 U 1.0 U Benzo(b)fluoranthene 1.0 U 1.0 U Benzo(g,h,i)perylene 1.0 U 1.0 U Benzo(k)fluoranthene 1.0 U 1.0 U Benzoic acid 10 U 10 U Benzyl alcohol 5.0 U 5.0 U bis(2- Chloroethoxy)methane 1.0 U 1.0 U bis(2- Chloroethyl)ether 1.0 U 1.0 U bis(2- Ethylhexyl)phthalate 3.2 1.0 U Butylbenzylphthalate 1.0 U 1.0 U Carbazole 1.0 U 1.0 U Chrysene 1.0 U 1.0 U Dibenzo(a,h)anthracene 1.0 U 1.0 U Dibenzofuran 1.0 U 1.0 U Diethylphthalate 1.0 U 1.0 U Dimethylphthalate 1.0 U 1.0 U Di- n- butylphthalate 1.0 U 1.0 U Di- n- octylphthalate 1.0 U 1.0 U Fluoranthene 1.0 U 1.0 U Fluorene 1.0 U 1.0 U Hexachlorobenzene 1.0 U 1.0 U Hexachlorobutadiene 1.0 U 1.0 U Hexachlorocyclopentadiene 5.0 U 5.0 U Hexachloroethane 1.0 U 1.0 U Indeno(1,2,3- cd)pyrene 1.0 U 1.0 U Isophorone 1.0 U 1.0 U Naphthalene 1.0 U 1.0 U Nitrobenzene 1.0 U 1.0 U Techinical Memorandum 8801 East Marginal Way South Property March 2007 030249 -02 Table 6 Stormwater Data Location ID. Sample. ID Sample Date Sample Matrix Sample :Type. Manne.Chronic Water Quality _Criteria (p I.4 AN -005 AN005ST -06! 015 10/15/2006 W;. AN=006 AN006ST- 061015 : 10/15/2006 N -N itroso- di- n- propylami ne 5.0 U 5.0 U n- Nitrosodiphenylamine 1.0 UJ 1.0 UJ Pentachlorophenol 7.9 5.0 U 5.0 U Phenanthrene 1.0 U 1.0 U Phenol 1.0 U 1.0 U Pyrene 1.0 U 1.0 U Total benzofluoranthenes 1U 1U Total LPAH 1U 1U Total HPAH 1U 1U Notes: Analyte exceeds Marine Chronic Water Quality Criteria *Chromium criteria is for Cr(VI) Bold = detected result mg/L = milligrams per liter pg/L = micrograms perliter J = estimated value U = compound was analyzed but not detected UJ = estimated detection limit R = rejected Techinical Memorandum 8801 East Marginal Way South Property March 2007 030249 -02 1 PFCE EVE rt ,� commTy DEvELOP� STATE OF WASHINGTON DEPARTMENT OF ECOLOGY Northwest Regional Office • 3190 160th Avenue SE • Bellevue, Washington 98008 -5452 • (425) 649 -7000 June 22, 2007 Mr. Steve Tibble Insurance Auto Auctions, Inc. Two Westbrook Corporate Center, Suite 500 Westchester, IL 60154 Subject: Request for Sampling and Analysis Plan for additional Stormwater Sampling at Insurance Auto Auction Inc. (IAAI) at 8801 E Marginal Way SE, Tukwila, WA Dear Mr. Tibble: Ecology's Toxics Cleanup Program (TCP) asks that Insurance Auto Auction Inc. (IAAI) conduct additional stormwater sampling to characterize the nature of the stormwater at the site and its potential source to sediment in Duwamish Waterway adjacent to the-property. Ecology is the lead agency for source control for the Lower Duwamish Waterway (LDW) Superfund site. Ecology is required to enforce the Sediment Management Standards (SMS) WAC 173 -204. This involves identifying and stopping or reducing releases of pollutants to sediment to the maximum extent practical in order to prevent recontamination of sediment once the cleanup for the Duwamish Waterway is implemented. As part of the source control effort, PACCAR, the former property owner of 8801 East Marginal Way South, has taken stormwater samples (both whole water phase and solid phase) from Outfall #1 and Outfall #3 for two events (12/4/06 and 3/22/07). These samples have been analyzed for metals, semi- volatile organics, PCBs, and phenols. The stormwater sampling data . collected by PACCAR are used to evaluate whether any contamination from.the soil and groundwater may get into Duwamish Waterway through the stormwater system. PACCAR will complete its stormwater sampling in 2007. A copy of PACCAR's first round of stormwater sampling results is enclosed for your information. Ecology will receive additional stormwater sampling results from PACCAR later this year. While Ecology continues working with PACCAR on its past practices at the site, Ecology needs to know whether IAAI's current practice may contribute to any recontamination of Duwamish sediment. This is part of Ecology's agreement with EPA for source control that no new contamination will be entering the waterway. Ecology's request to IAAI is to collect additional stormwater data in year 2008 and to prepare a Stormwater Sampling and Analysis Plan. The data will be used to evaluate . the effectiveness of the Vortech System planned to be installed at the site in 2007 and to evaluate current site use and practices. 1 Mr. Steve Tibble, Insurance Auto Auctions, Inc. Request for Stormwater Sampling and Analysis Plan June 22, 2007, page 2 Ecology's recommendation to IAAI is to prepare a Stormwater Sampling and Analysis Plan for the 2008 stormwater sampling request listed below. This recommendation is in addition to the general NPDES permit requirements you presently hold. The current requirements include pH, turbidity, oil and grease, zinc, lead and copper. Ecology recommends that the Stormwater Sampling and Analysis Plan be prepared and submitted to Ecology for review and approval. Whole Water and Solid Phases Stormwater samples usually means that a whole water grab sample is collected. This type of sample is insufficient to determine whether stormwater is a source to sediment. Analysis of stormwater solids is critical to identify chemicals such as phthalates, PCBs, and poly - aromatic hydrocarbons (PAHs). Ecology is asking IAAI to monitor both water and solid phases. Sample Frequency Ecology asks for a minimum of four quarterly whole water phase samples, and two solid phase samples be collected in 2008. The solid samples may be taken at the same time as the water phase at midwinter about January and at end of wet season, at the end of April in 2008. Sample Locations Whole water phase samples will be collected at Outfall #1 and Outfall #3 at 8801 East Marginal Way, and Outfall #4 at 9229 East Marginal Way. Solid Phase samples can be grab samples of solids close to point of discharge, or composite samples from appropriate catch basins at or before Outfall #1, #3 and #4 and if not available, then at a manhole or sump adjacent or near to the waterway. Parameters to be Analyzed Under NPDES general permit, IAAI is required to take water samples and analyze pH, TSS (total suspended solids), oil and grease, zinc, lead and copper. In addition, IAAI is asked to analyze grain size, total organic carbon, parameters listed in the SMS Table 1 (See the Attachment), and NWTPH (See the analytical method at www.ecy.wa.gov/progams/tcp/cleanup.html). Preliminary Effluent Limits The sample results should be compared to Sediment Management Standards (SMS) for SQS and CSL for solid sample and water quality standards for whole water samples. i Mr. Steve Tibble, Insurance Auto Auctions, Inc. Request for Stormwater Sampling and Analysis Plan . June 22, 2007, page 3 QA/QC and Reporting Sampling should be conducted with standard sampling quality assurance and quality control and consistent with current Puget Sound Estuary Program (PSEP) and EPA protocols for sampling and analysis. A duplicate sample should be collected per ten samples or per sampling day. Laboratory spike and spike duplicate analyses will be conducted and reported. A report will be prepared and submitted to Ecology for review and approval. The report will document the results and assess whether stormwater water or solids are within surface water quality criteria and sediment standards. A vicinity map will show all sampling locations and site features such as catch basins and outfalls. Chemical results should be summarized on tables with conventional variables as well as pertinent QA/QC data. Distribution of chemical results should be illustrated on a site figure showing location and chemicals at or above one of the criteria such as water quality criteria and SMS. Copies of laboratory reports, QA/QC, chain of custody and field logs should be attached as appendices to the report. If you have any questions, or would like to discuss these sampling requirements, please call Ecology's site manager, Maura O'Brien at (425) 649 -7249 or send an email to mobr461 @ecy.wa.gov . Sincerely, Sunny Be ► er, P.E. Professional Engineer Toxics Cleanup Program Enclosures Maura S. 0' : rien, PG/HG #869 Professional Geolo gist/Hydrogeolo gist Toxics Cleanup Program cc Mark Barbieri, Washington Holdings LLC Eric Buckler, Paccar Kris Flint, EPA Sediment Management Standards Table I Marine Sediment Quality Standards —Chemical Criteria CHEMICAL MG/KG DRY WEIGHT PARAMETER (PARTS PER MILLION (PPM) DRY) ARSENIC 57 CADMIUM 5.1 CHROMIUM 260 COPPER 390 LEAD 450 MERCURY 0.41 SILVER 6.1 ZINC 410 CHEMICAL ' MG/KG ORGANIC CARBON PARAMETER (PPM CARBON) - LPAH ' :` 370 - .. BUTYL BENZYL PHTHALATE 4.9 BIS (2-ETHYLHEXYL) PHTHALATE 47 DI-N-OCTYL PHTHALATE . 58 DIBENZOFURAN . • 15 liEXACHLOROBUTAD IENE 3.9 N-NITROSODIPHENYLAMINE 11 TOTAL PCB'S 12 ; • . , - : ••.:, ,::;::: CHEMICAL UG/KG DRY WEIGHT PARAMETER (PARTS PER BILLION (PPB) DRY) PHENOL - 420 2-METHYLPHENOL 63 4-METHYLPHENOL 670 2,4-DIMETHYL PHENOL . PENTACHLOROPHENOL 360 BENZYL ALCOHOL 57 BENZOIC ACID 650 .• [Ch. 173-24)4 WAC-16] (12/29/95) Z ~6 EN6�N� " STORM DRAINAGE REPORT Insurance Auto Auctions 8801 East Marginal Way South Tukwila, Washington Prepared for: Insurance Auto Auctions 850 East Algonquin Road Schamberg, IL 60173 March 30, 2007 Revised July 24, 2007 Our Job No. 11419 CIVIL ENGINEERING, LAND PLANNING, SURVEYING, ENVIRONMENTAL SERVICES 18215 72ND AVENUE SOUTH KENT, WA 98032 (425) 251 -6222 (425) 251 -8782 FAX BRANCH OFFICES • OLYMPIA, WA • TACOMA, WA • SACRAMENTO, CA • TEMECULA, CA www.barghausen.com TABLE OF CONTENTS 1.0 PROJECT OVERVIEW 1 2.0 CONDITIONS AND REQUIREMENTS SUMMARY 2 2.1 Analysis of the Eight Core Requirements 2 2.2 Analysis of the Five Special Requirements 3 3.0 OFF -SITE ANALYSIS 5 4.0 FLOW CONTROL AND WATER QUALITY FACILITY ANALYSIS AND DESIGN 6 4.1 Existing Site Hydrology 6 4.2 Developed Site Hydrology 6 4.3 Performance Standards 6 4.4 Flow Control System 6 4.5 Water Quality System 6 5.0 CONVEYANCE SYSTEM ANALYSIS AND DESIGN 7 6.0 SPECIAL REPORTS AND STUDIES 8 7.0 OTHER PERMITS 9 8.0 ESC ANALYSIS AND DESIGN 10 9.0 BOND QUANTITIES, FACILITY SUMMARIES, AND DECLARATION OF COVENANT11 10.0 OPERATIONS AND MAINTENANCE MANUAL 12 APPENDIX FIGURE - VICINITY MAP VORTECHS AND STORMFILTER SYSTEMS STANDARD DETAILS DEPARTMENT OF ECOLOGY CORRESPONDENCE DATED MAY 15, 2007 HYDRAULIC CALCULATIONS BASIN MAP Barghausen Consulting Engineers, Inc. i Insurance Auto Auctions 11419.007.doc Tukwila Washington 1.0 PROJECT OVERVIEW 1.0 PROJECT OVERVIEW The area is comprised of two main buildings on approximately 24 acres. The site is paved. The property was previously used by the Kenworth Truck Company through an industrial waste discharge permit issued to Paccar — Seattle (S03- 001784). The facility is directly adjacent to the Duwamish Waterway on East Marginal Way South. The street address is 8801 East Marginal Way South, Tukwila, Washington. The primary activities at the facility include temporary storage of vehicles prior to resale. No vehicle washing, servicing or refueling, lube, or other service is planned at the site. This will occur off -site at other facilities permitted to provide these services. Some office operations will occur on the property as well. These operations are in support of the related vehicle storage and resale. There is an existing 36 -inch diameter pipe coursing southwesterly through the eastern portion of the site that will remain untouched with this project. Flow control is not a requirement for this project site since there is direct discharge to the Duwamish Waterway. Enhanced Water Quality Treatment is required for this site. This will be accomplished by " Vortechs" Hydrodynamic Separation Vaults in conjunction with Stormfilter Vaults. Please refer to Section 4.0 of this report for the sizing calculations to size the both the "Vortechs" Vaults and the Stormfilter Vaults. A conceptual plan approval of water quality treatment has been obtained from the City of Tukwila (please refer to the enclosed Conceptual Water Quality Facility Plan drawing). As a condition of occupancy, the tenant has agreed to provide and install water quality facilities. The conceptual plan outlines these facilities and forms the basis of this final design. Barghausen Consulting Engineers, Inc. 1 Insurance Auto Auctions 11419.007.doc Tukwila Washington 2.0 CONDITIONS AND REQUIREMENTS SUMMARY 2.0 CONDITIONS AND REQUIREMENTS SUMMARY 2.1 Analysis of the Eight Core Requirements Core Requirement No. 1: Discharge at the Natural Location. Response: Under existing conditions, the site has direct discharge into the Duwamish Waterway. No change is proposed for the outlet locations; therefore, discharge at the natural location is maintained. Core Requirement No. 2: Off -Site Analysis. Response: The discharge for the site is direct discharge into the Duwamish Waterway. There is very little tributary off -site area, if any, so an off -site analysis is not applicable. Core Requirement No. 3: Flow Control. Response: Core Requirement No. 3 does not apply to this project site since there is direct discharge into the Duwamish Waterway and the City of Tukwila has adopted the 1998 King County, Washington Surface Water Design Manual (KCSWDM), which states sites that discharge directly into this location of the Duwamish Water do not have to provide Flow Control. Core Requirement No. 4: Conveyance System. Response: Stormwater runoff from the northern portion of the facility discharges to a series of existing catch basins and drainpipe conveyance on site. Drainage from these catch basins flows to an existing oiUwater separator prior to discharging to the Duwamish River at the north outfall. The northern drainage area includes all of the buildings, including roof drains. Stormwater runoff from the southern portion of the facility discharges to the existing southern outfall into the Duwamish River, again via a series of existing catch basins and pipe conveyance system. No detrimental flooding or other problems are known to occur with this system. The majority of the southern drainage area includes the south parking lot and areas subject to vehicular travel. Core Requirement No. 5: Temporary Erosion and Sediment Control. Response: The erosion and sediment control plan prepared for this phase of this project will be utilized and will conform to all requirements of the 1998 KCSWDM, Appendix D, Erosion and Sedimentation Control Methods, for sites of this nature. Core Requirement No. 6: Maintenance and Operations. Response: This project will concur with all maintenance and operations requirements of the City of Tukwila for projects of this nature. Barghausen Consulting Engineers, Inc. 2 Insurance Auto Auctions 11419.007.doc Tukwila Washington Core Requirement No. 7: Financial Guarantees and Liability. Response: This project will conform to all financial guarantee and liability requirements as dictated by the City of Tukwila for projects of this nature. Core Requirement No. 8: Water Quality. Response: This project is a redevelopment of an existing facility; as such the Basic Water Quality menu is applicable. The treatment goal of this menu is facility choices, which are designed to remove 80 percent of the total suspended soils (TSS). This project proposed two stormwater treatment devices to treat the runoff of a 6 -month 24 hr storm. The vaults have been sized in accordance with Washington State Department of Ecology requirements as allowed by the City of Tukwila on past projects that have been designed utilizing "Vortechs" hydrodynamic separation vaults. A conceptual stormwater treatment plan has been approved by the City of Tukwila, using the "Vortechs" units. This plan has been followed as a guideline for the basic treatment portion of the water quality design. Where possible, as in the case of the southern retrofit of an existing 18 -inch outlet pipe, a separation vault has been revised to allow for a "flow- through" design. The design capacity will allow for the peak storm events of up to 100 years return frequency. This design better enables the facility to meet minimum treatment goals. Runoff flow quantities were initially calculated using the SBUH methodology as allowed by the 1998 KCSWDM. Subsequent review by the WSDOE for storm drainage and water quality indicated the use of the WWHM dated February 2005. These calculations based upon the run time series computation result in lower peak flows throughout the system. Summarized peak flow comparison is as follow (calculations are included in the Appendix): Given the industrial waste water discharge permit requirements as administered by WSDOE, it has been elected to provide "Enhanced Water Quality Treatment ". The system selected includes a Vortechs Pretreatment (Basic Treatment) unit followed by a Stormfilter Vault. As a "Treatment Train" the two systems constitute "Enhanced Treatment ". This menu provides for industrial project sites that discharge to fish bearing streams. The performance goal is for a higher rate of removal of dissolved metals than basic treatment facilities. 2.2 Analysis of the Five Special Requirements Special Requirement No. 1: Other Adopted Area - Specific Requirements. Response: This project is not known to be within an area with other adopted area- specific requirements; therefore, this project is not under the requirements of any other basin plan, critical drainage area plan, etc., to the best of our knowledge at this time. Barghausen Consulting Engineers, Inc. 3 Insurance Auto Auctions 11419.007.doc Tukwila Washington WWHM 6 -Month (cfs) WWHM 100 -Year (cfs) Online Offline Developed Basin X Basin Y 2.77 1.59 7.76 1.15 0.66 3.21 2.2 Analysis of the Five Special Requirements Special Requirement No. 1: Other Adopted Area - Specific Requirements. Response: This project is not known to be within an area with other adopted area- specific requirements; therefore, this project is not under the requirements of any other basin plan, critical drainage area plan, etc., to the best of our knowledge at this time. Barghausen Consulting Engineers, Inc. 3 Insurance Auto Auctions 11419.007.doc Tukwila Washington Special Requirement No. 2: Development within a Floodplain or Floodway. Response: This project site is adjacent to the Duwamish Waterway and the ordinary high water mark has been surveyed for this waterway. FEMA Maps will be consulted and the 100 -year floodplain boundaries for the site will be shown; however, it is unlikely that the project site is ever inundated by water during a 100 -year event. Special Requirement No. 3: Flood Protection Facilities. Response: This project is not adjacent to a Class 1 or 2 Stream that has a flood protection facility nor does it propose to construct a new or modify an existing flood protection facility; therefore, this requirement does not apply. Special Requirement No. 4: Source Control. Response: This project will provide water quality source control applicable to the proposed project in accordance with the Industrial Waste Discharge Permit issued by DOE for this project. Special Requirement No. 5: Oil Control. Response: This site is not a proposed high use site; therefore, the requirements of the High -Use Oil Control Menu will not be applicable to this project site. Barghausen Consulting Engineers, Inc. 4 Insurance Auto Auctions 11419.007.doc Tukwila Washington 3.0 OFF -SITE ANALYSIS 3.0 OFF -SITE ANALYSIS The off -site analysis for this project site was based on the survey created by this office and utilized in determining the discharge location for runoff from the project site, which is directly into the Duwamish Waterway. This is direct discharge from this project site and the site does not discharge to any other property; therefore, the downstream drainage course is not an issue on this project site. The adjoining properties all have their own catch basin collection and pipe conveyance facilities discharging into the Duwamish Waterway and do not drain onto the project site. Minor incidental areas may sheetflow tributary drainages along the property lines. These areas are considered negligible with regards to the overall design. The total upstream basin contributing to the 36 -inch diameter culvert traversing through the project site is not known at this time but it is thought that the culvert contains portions, if not all, of the Boeing Field runoff from upstream. Barghausen Consulting Engineers, Inc. 5 Insurance Auto Auctions 11419.007.doc Tukwila Washington 4.0 FLOW CONTROL AND WATER QUALITY FACILITY ANALYSIS AND DESIGN Barghausen Consulting Engineers, Inc. 6 Insurance Auto Auctions 11419.007.doc Tukwila Washington 5.0 CONVEYANCE SYSTEM ANALYSIS AND DESIGN 5.0 CONVEYANCE SYSTEM ANALYSIS AND DESIGN The conveyance system has been sized using the SBUH methodology, which is a hydrograph methodology. All new storm conveyance facilities within Basins X and Y not bypassing the stormwater quality storm are sized to convey up to the 100 -year storm event. Conveyance facilities within the bypass system will be conveying only slightly more than the 6 -month storm. Sizing for the bypass system will be for the 2 -year event only. Barghausen Consulting Engineers, Inc. 7 insurance Auto Auctions 11419.007.doc Tukwila Washington Appended on: 10:30:03 Tuesday, July 10, 2007 New Catch Basin Event Summary Event 'Peak Q (cfs) Peak T (hrs) Hyd Vol (acft) Area (ac) Method IRaintype 6 month 0.0439 1 8.00 0.0158 0.2800 SBUH TYPE1A 2 year 0.0909 8.00 I 0.0307 0.2800 SBUH TYPE1A 10 year 0.1522 8.00 0.0504 0.2800 SBUH TYPE1A 25 year 0.1866 8.00 0.0616 0.2800 SBUH TYPE1A 100 year 0.2277 8.00 0.0751 1 0.2800 SBUH TYPE1A Record Id: New Catch Basin Design Method Hyd Intv Pervious Area Pervious CN Pervious TC SBUH I 10.00 min 0.28 ac 93.00 5.00 min Rainfall type Peaking Factor Abstraction Coeff DCIA DC CN DC TC I_ TYPE1A 484.00 0.20 0.00 ac 0.00 I 0.00 min IPervious CN Cale Description SubArea Sub cn Industrial I 0.28 ac 93.00 Pervious Composited CN (AMC 2) 93.00 IPervious TC Cale Type Description Length Slope Coeff Misc TT Fixed Fixed 5.00 min Pervious TC 5.00 min Licensed to: Barghausen Engineers 12" PIPE AT CRITICAL SLOPE Cross Section for Circular Channel Project Description Project File p: \11000s\ 11419 \engineering \flowmaster\12inch p.fm2 Worksheet 12" CRITICAL SECTION Flow Element Circular Channel Method Manning's Formula Solve For Discharge Section Data Mannings Coefficient 0.013 Channel Slope 0.005000 ft/ft Depth 0.98 ft Diameter 12.00 in Discharge 2.66 cfs 1r bit, 0,-rc, 1 0.z8" Q 100 << z.(06 c . —L 60 5%).c1,Y,,,5;k9. 07/10/07 I10:23:43 AM 0.98 ft 1, H 1 NTS 12.00 in FlowMaster v5.15 Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 (203) 755 -1666 Page 1 of 1 Max Flow Through 8" Cross Section for Circular Channel Project Description Project File Worksheet Flow Element Method Solve For p: \11000s\ 11419 \engineering\flowmaster\12inch p.fm2 8" pipe with WQ Event Circular Channel Manning's Formula Discharge Section Data Mannings Coefficient Channel Slope Depth Diameter Discharge 0.013 0.005000 ft/ft 0.65 ft 8.00 in 0.91 cfs \IJA,4 two, tii3 Lie + if sv - ca. < 09l c-Cs r 0.65 ft • • 1 VD H 1 NTS 8.00 in 07/10/07 FlowMaster v5.15 10:33:53 AM Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 (203) 755 -1666 Page 1 of 1 WQ Storm in North System Pipe Cross Section for Circular Channel Project Description Project File Worksheet Flow Element Method Solve For p: \11000s\ 11419 \engineering \flowmaster \12inch p.fm2 12" pipe in North System Circular Channel Manning's Formula Channel Depth Section Data Mannings Coefficient Channel Slope Depth Diameter Discharge 0.013 0.005000 ft/ft 0.58 ft 12.00 in 1.59 cfs 07/10/07 10:38:44 AM 12.00 in • 1, H 1 NTS FlowMaster v5.15 Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 (203) 755 -1666 Page 1 of 1 6.0 SPECIAL REPORTS AND STUDIES 11419.007.doc Tukwila Washington 7.0 OTHER PERMITS To our knowledge, other permits related to this project include an Industrial Waste Discharge Permit as administered by the Washington State Department of Ecology. Barghausen Consulting Engineers, Inc. 9 Insurance Auto Auctions 11419.007.doc Tukwila Washington 8.0 ESC ANALYSIS AND DESIGN 8.0 ESC ANALYSIS AND DESIGN The previously prepared erosion and sedimentation control plan has been submitted for this project and approved by the City of Tukwila. Please refer to that document for the requirements for erosion and sedimentation control. Barghausen Consulting Engineers, Inc. 10 Insurance Auto Auctions 11419.007.doc Tukwila Washington 9.0 BOND QUANTITIES, FACILITY SUMMARIES, AND DECLARATIONS OF COVENANT 11419.007.doc Tukwila Washington 10.0 OPERATIONS AND MAINTENANCE MANUAL 10.0 OPERATIONS AND MAINTENANCE MANUAL An operations and maintenance manual will be prepared with the final Storm Drainage Report should it be required by the City of Tukwila. Barghausen Consulting Engineers, Inc. 12 Insurance Auto Auctions 11419.007.doc Tukwila Washington APPENDIX Sough Palk. S Dondvantt; i S 92nd PI S 93rd St Vtk g r ‘cp 5i 96th St--- s` 02004 MapQuestoom, Inc.: 02004 NAVTE4 SOURCE: MAPQUEST VICINITY MAP 8801 WEST MARGINAL WAY TUKWILA, WA NORTH PA11000S \114191DOMICINITY MAP.DOC VORTECHS AND STORMFILTER SYSTEM STANDARD DETAILS NOTE: VORTECHS SYSTEMS INSTALLED IN A BYPASS CONFIGURATION REQUIRE AN UPSTREAM DIVERSION STRUCTURE THAT SHALL BE DETAILED BY THE CONSULTING ENGINEER WITH ELEVATION AND WEIR WIDTH DATA PROVIDED BY CONTECH STORMWATER SOLUTIONS. ALUMINUM SWIRL CHAMBER INLET VARIES, SEE NOTES 8 & 9. INLET PIPE MUST BE A CORNER INLET TO INTRODUCE FLOW TANGENTIALLY TO THE SWIRL CHAMBER. 11'-0' SEALANT EXTRUDED BUNA N SEAL 7 CONCRETE REINFORCED FOR HS20 LOADING�� PLAN VIEW B - B CONTRACTOR TO VERIFY ELEVATION OF PRIMARY 8" INVERT OUT 6' CONCRETE TYP OUTLET VARIES, SEE NOTE 9 RIM ELEVATIONS TO MATCH FINISHED GRADE TYP IE = 7.28 TYP } TOP AND SIDES SEALED TO VAULT BUM RUBBER SEALANT C WEIR AND ORIFICE PLATES 3'-0' 1 WEIR ORIFICE 3'-0' TYP RISERS BY OTHERS si i' IE = 7.28 ocro°.°_000°. °:°00? °_0OOa °Oo°. °:000'° °_ 001q O,o. oa O:o. oa O_o :,e Qa :oa O -o 5'-0' MINIMUM 6' COMPACTED GRAVEL SECTION A - A NOTES: 1. STORMWATER TREATMENT SYSTEM (SWTS) SHALL HAVE PEAK TREATMENT CAPACITY: 4.5 CFS SEDIMENT STORAGE: 1.8 CU YD SEDIMENT CHAMBER DIA 5' MIN 2. SWTS SHALL BE CONTAINED IN ONE RECTANGULAR STRUCTURE 3. SWTS REMOVAL EFFICIENCY SHALL BE DOCUMENTED BASED ON PARTICLE SIZE 4. SWTS SHALL RETAIN FLOATABLES AND TRAPPED SEDIMENT UP TO AND INCLUDING PEAK TREATMENT CAPACITY 5. SWTS INVERTS IN AND OUT ARE TYPICALLY AT THE SAME ELEVATION 6. SWTS SHALL NOT BE COMPROMISED BY EFFECTS OF DOWNSTREAM TAILWATER 7. SWTS SHALL HAVE NO INTERNAL COMPONENTS THAT OBSTRUCT MAINTENANCE ACCESS 8. INLET PIPE MUST BE PERPENDICULAR TO THE STRUCTURE 9. PIPE ORIENTATION MAY VARY; SEE SITE PLAN FOR SIZE AND LOCATION 10. PURCHASER SHALL NOT BE RESPONSIBLE FOR ASSEMBLY OF UNIT 11. MANHOLE FRAMES AND PERFORATED COVERS SUPPUED WITH SYSTEM, NOT INSTALLED 12. PURCHASER TO PREPARE EXCAVATION AND PROVIDE CRANE FOR OFFLOADING AND SETTING AT TIME OF DELNERY 13. VORTECHS SYSTEMS BY CONTECH STORMWATER SOLUTIONS; PORTLAND, OR (800)548.4667; SCARBOROUGH, ME (877) 907-8676; UNTHICUM, MD (868) 740 -3318. PROPRIETARY INFORMATION - NOT TO BE USED FOR CONSTRUCTION PURPOSES This CADD file Is for the purpose of spedfytrp stormwater treatment equipment to be furnished by CONTECH Stommvater Solutions and may only be traosfened to other documents exactly as provided by CONTECH Stone water SohNors. Title block Infomratlon, excluding the CONTECH Stonnwater Solutions logo and the Vortedo Stonnwater Treatment System designation and patent number, may be deleted If necessary. Revisions to any part of this CADD file without prior coordination with CONTECH Stonmwater Solutions shall be considered unauUgdzed use of proprietary Information. ■LIIIMwu® Tevi∎v i rte:-! STORMWATER OLUTIONS- tbMechstorrlTwater.com STANDARD DETAIL STORMWATER TREATMENT SYSTEM VORTECHS® MODEL 3000 U.S. PATENT No. 5,759,415 DATE 1W4108 1 SCALE: NONE 1 FILE NAME: STD3K 1 DRAWN: JBS 1 CHECKED: NDG NOTE: VORTECHS SYSTEMS INSTALLED IN A BYPASS CONFIGURATION REQUIRE AN UPSTREAM DIVERSION STRUCTURE THAT SHALL BE DETAILED BY THE CONSULTING ENGINEER WITH ELEVATION AND WEIR WIDTH DATA PROVIDED BY CONTECH STORMWATER SOLUTIONS. A 90' INLET VARIES, SEE NOTES 8 8 9. INLET PIPE MUST BE A CORNER INLET TO INTRODUCE FLOW TANGENTIALLY TO THE SWIRL CHAMBER. CONCRETE REINFORCED FOR HS20 LOADING 120.. — SEALANT EXTRUDED BUNA N SEAL • I _ • • •. • ',,,_ALUMINUM SWIRL 1 CHAMBER 1 I'-6• ORIFICE 1 1 1' -10• ((/ 1 \\ / I WEIR 1 SEALANT-- BAFFLE WALL— PLAN VIEW B - B — 6" CONCRETE TYP OUTLET MAY VARY, %—SEE NOTE 9 6• AI \— FLOW CONTROL WALL - - -_— — RIM ELEVATIONS TO MATCH FINISHED GRADE ` RISERS BY OTHERS 7• -0" TYP IB INLET INVERT TYP BUTYL RUBBER — SEALANT TOP AND / SIDES SEALED TO VAULT WEIR AND ORIFICE PLATES 3' -0- TYP WEIR ORIFICE 3. 0' TYP SECTION A - A NOTES: 1. STORMWATER TREATMENT SYSTEM (SWTS) SHALL HAVE PEAK TREATMENT CAPACITY 6 CFS SEDIMENT STORAGE: 2.4 CU YD SEDIMENT CHAMBER DIA: 6• MIN 2. SWTS SHALL BE CONTAINED IN ONE RECTANGULAR STRUCTURE 3. SWTS REMOVAL EFFICIENCY SHALL BE DOCUMENTED BASED ON PARTICLE SIZE 4. SWTS SHALL RETAIN FLOATABLES AND TRAPPED SEDIMENT UP TO AND INCLUDING PEAK TREATMENT CAPACITY 5. SWTS INVERTS IN AND OUT ARE TYPICALLY AT THE SAME ELEVATION 6. SWTS SHALL NOT BE COMPROMISED BY EFFECTS OF DOWNSTREAM TAILWATER f BI OUTLET INVERT MINIMUM 6" COMPACTED GRAVEL 7. SWTS SHALL HAVE NO INTERNAL COMPONENTS THAT OBSTRUCT MAINTENANCE ACCESS 8. INLET PIPE MUST BE PERPENDICULAR TO THE STRUCTURE 9. PIPE ORIENTATION MAY VARY; SEE SITE PLAN FOR SIZE AND LOCATION 10. PURCHASER SHALL NOT BE RESPONSIBLE FOR ASSEMBLY OF UNIT 11. MANHOLE FRAMES AND PERFORATED COVERS SUPPLIED WITH SYSTEM, NOT INSTALLED 12. PURCHASER TO PREPARE EXCAVATION AND PROVIDE CRANE FOR OFF- LOADING AND SETTING AT TIME OF DELIVERY 13. VORTECHS SYSTEMS BY CONTECH STORMWATER SOLUTIONS; PORTLAND, OR (800)548 -4667; SCARBOROUGH, ME (877) 907 -8676; LINTHICUM, MD (866) 740 -3318. PROPRIETARY INFORMATION - NOT TO BE USED FOR CONSTRUCTION PURPOSES This CADD rile is for the purpose of specifying slormwater treatment equipment to be furnished by CONTECH Stormwater Solutions and may only be transferred to other documents exactly as provided by CONTECH Stormwater Solutions. Title block information. excluding the CONTECH Stormwater Solutions logo and the Vortechs Stormwater Treatment System designation and patent number. may be deleted if necessary. Revisions to any part of this CAM file without prior coordination with CONTECH Stormwater Solutions shall be considered unauthorized use of proprietary inlonnalion. AuTCAL1® �iij ►� iii �:? STORMWATER,..- contechstormwater.com STANDARD DETAIL STORMWATER TREATMENT SYSTEM VORTECHS® MODEL 4000 U.S. PATENT No. 5,759,415 DATE: 10/4/06 1 SCALE: NONE I FILE NAME: STD4K I DRAWN: JBS I CHECKED: NDG INLET PIPE (SEE NOTES 5$6) INLET BAY FLOW SPREADER ALTERNATE PIPE LOCATION (TYP) (SEE NOTE 6) OUTLET PIPE (SEE NOTES 54-6) • 1 � • � 1 \ \O \Q \ \�, \\ \, \ \ \\, \ \ \ \, ` \ \ \` \ \\ ;:•; �\\\7\v�`‘y, y��\T\ ��\ v\∎:\\T\ `\ \m�\\\\ ay\ I5 �0A� \O A \ \ \ \ \`A \ \ \ \\' A \\\ \ \ \`A \ \ \ \\ A \ \ \ \`A \ \ \�\. a �\\. ,;,! , ',t,. , �„ �, E. ∎. i\\\\\� £. £\\\\\\ £\\'' : \\\ \\\� \\ 's, ,\ \Q \ \ \'t' \\ \ \Y \ \\ ► \\ \ \ \Y \ ' \\\ \\\\\\ \\\\\\' \\\\'.. \\\\\\, \\' \\\\\' V \\\\\ f e \NA \ \ \\• \ \ \ \\ \ \ \ \ \ \ \ \'� \ \ \ \\ \ \ \ \\ \ \ \ \\ �� \, 4\\\'\\ £\\„�\w.\\\\,w£\\.S. £�\� \•A\\\'. A\ V \ v \ \ \Ak,`. \ �\\ \ \\�Q \ \\�\ \ \\\N\ \ \ \ :,i..7 \., \ \R \\\V , \V \\�;\,i\���\ \�-' " \ \V \'\ \\4 \\\ \\=i • YAW, Q \ \V \Q \ \ \Y. \ \ \ \ "L \ \ \ \ \� \Q \ \\ \\ r \' \\\ i \\\\\v \\\\\v \\\\\\i \\\\\\ r \\'\\\ V \■ ii CD /Iaa'.A \ \\ \'\ \\ \\ \ \ \ \. \\ \\ \\ \ \ \-- \ \ \ \�\r \� \y;\Q��1 \Q \� \7\. \Ir.Q \ \ Ny,,, \ \Y'\ \ \ \\; \ \\\r\y�\ \r \\\\ \r \\\\\`r \\\\ \ \r\ • \\r \\\\ \r \y\\ \r- \\ ` \ \ \\\�' \ \ \\ \` \\\\\ \` \ \ \' \ \\ \` \ \ \\` \ \ \\\ ° \\ ° \ \ \ \\ \` \ \ \ \\ \` \\\\\\ \ \ \ \\' \ \ \ \ \° \ \ \\\ ` \\\\' FILTRATION BAY PERIMETER DRAIN PANEL VAULT STORMFILTER - PLAN VIEW 3' x 9' (NOMINAL) ACCESS hATCh (SEE NOTE 4) 24 "0 FRAME AND COVER (TYP) (SEE NOTE 4) COUPLING (TYP) (BY CONTRACTOR) OUTLET BAY PRECAST � STORMFILTER PANEL CARTRIDGE (-FYI') (SEE NOTE 2) ©2006 CONTECH Stormwater Solutions UNDERDRAIN MANIFOLD PANEL VAULT STORMFILTER - SECTION VIEW w ' JTrwu® "..."--4-417111 STORMWATER SOLUTIONS.. contechstorrnwater.com THE 5TORMWAIER MANAGEMEN1 5torrr.F I ero U.5. PATENT No. 5.322.629. No. 5.707.527. No. 6.027.639 No. 6:649.048. No. 5,624.576, AND OTHER U.S. AND FOREIGN PATENTS PENDING 11-6" x 36' -6" PRECAST PANEL VAULT STORMFILTER PLAN AND SECTION VIEWS STANDARD DETAIL DRAWING 1 1/2 DATE:01 /04/06 I SCALE: NONE I FILE NAME: SF11.5x36.5- PV -DTL I DRAWN: MJW I CHECKED: GENERAL NOTES I) STORMFILTER BY CONTECH STORMWATER SOLUTIONS. PORTLAND. OR (800) 548 -4667: SCARBOROUGH. ME (877) 907 -8676: LINTHICUM. MD (866) 740 -3315. 2) FILTER CARTRIDGES) TO BE SIPHON- ACTUATED AND SELF - CLEANING. STANDARD DETAIL DRAWING SHOWS MAXIMUM NUMBER OF CARTRIDGES. ACTUAL NUMBER REQUIRED TO BE SPECIFIED ON SITE PLANS OR IN DATA TABLE BELOW. 3) PRECAST VAULT TO BE CONSTRUCTED IN ACCORDANCE WITH ASTM C857 AND C558. DETAIL DRAWING REFLECTS DESIGN INTENT ONLY. ACTUAL DIMENSIONS AND CONFIGURATION OF STRUCTURE WILL BE SHOWN ON PRODUCTION SHOP DRAWING. 4) STRUCTURE AND ACCESS COVERS TO MEET AASHTO H -20 LOAD RATING. DOORS RATED FOR INCIDENTAL TRAFFIC ONLY_ 5) STORMFILTER REQUIRES 2.5 FEET OF DROP FROM INLET TO OUTLET. If LESS DROP I5 AVAILABLE. CONTACT CONTECH STORMWATER SOLUTIONS. G) INLET AND OUTLET PIPING TO BE SPECIFIED BY ENGINEER AND PROVIDED BY CONTRACTOR. PRECAST STORMFILTER VAULT EQUIPPED WITH EITHER CORED OPENINGS OR KNOCKOUTS AT INLET AND OUTLET LOCATIONS. 7) PROVIDE MINIMUM CLEARANCE FOR MAINTENANCE ACCESS. IF A SHALLOWER SYSTEM 15 REQUIRED. CONTACT CONTECH STORMWATER SOLUTIONS FOR OTHER OPTIONS. 8) ANTI - FLOTATION BALLAST TO BE SPECIFIED BY ENGINEER AND PROVIDED BY CONTRACTOR. IF REQUIRED. BALLAST TO BE SET ALONG ENTIRE LENGTH OF BOTH SIDES OF THE STRUCTURE. 9) ALL STORMFILTERS REQUIRE REGULAR MAINTENANCE. REFER TO OPERATION AND MAINTENANCE GUIDELINES FOR MORE INFORMATION. 24 "O FRAME AND COVER (TYP) UNDERDRAIN MANIFOLD DOWNSTREAM BAFFLE WALL PANEL VAULT STORMFILTER - SECTION VIEW 36' -6" I 11-6" X 36' -611 PRECAST PANEL VAULT STORMEILTER DATA STRUCTURE ID XXX WATER QUALITY FLOW RATE (cfs) X.XX PEAK FLOW RATE (cfs) X.XX RETURN PERIOD OF PEAK FLOW (yrs) XXX # OF CARTRIDGES REQUIRED XX CARTRIDGE FLOW RATE (7.5 OR 15 cipm) XX MEDIA TYPE (C5E. PERLITE, ZPG, 2E0-PERU XXXXX PIPE DATA: IE MATERIAL DIAMETER INLET PIPE #I XXX.XX' XXX XX" INLET PIPE # 2 XXX.XX' XXX XX" OUTLET PIPE XXX.XX' XXX XX" RIM XXX.XX XXX.XX XXX.XX' Q 0 / FLOW LADDER YES /NO PERIMETER DRAIN YES /NO NOTES /SPECIAL REQUIREMENTS: 14, • r "'�-•`PF =cox �" 6' 1 I 2' -8 1/2' .2'-8 I /2" 1' I I" PANEL VAULT STORMFILTER - TOP VIEW ©2006 CONTECH Stormwater Solutions I -6" THE STORMWATER MANAGEMEN1 5torrn ttere U.S. PATENT No. 5.322,629. No. 5.707.527. No. 6.027.639 No. 6,649.048. No. 5,624,576, AND OTHER U.S. AND FOREIGN PATENTS PENDING A UTCAIJ® STORMWATER SOLUTIONS C contechstormwater.com 1 x 36' -6" PRECAST PANEL VAULT STORMFILTER TOP AND SECTION VIEWS, NOTES AND DATA STANDARD DETAIL DRAWING 2 2/2 DATE: 01/04/06 1 SCALE: NONE FILE NAME: SF11.5x36.5- PV -DTL 1 DRAWN: MJW (CHECKED: The proven stormwater treatment leader Get proven, reliable stormwater treatment every time. The Vortechs® System is the proven stormwater solution chosen by engineers, contractors, regulators, developers and conservation organizations to meet water quality challenges and to ensure that urban runoff is as clean as possible. The EPA award - winning design efficiently removes contaminated sediment, floating hydrocarbons, and debris from stormwater. The Vortechs® System's swirl- concentrator and flow controls work together to eliminate turbulence and to provide positive removal efficiencies throughout the full range of operation. With the most comprehensive lab, field and third party testing in the industry, the Vortechs® System delivers proven results and site - specific solutions for all applications and rainfall conditions. Vortechs° System Features and Benefits Easy Maintenance Unobstructed Manhole Access Allows for easy grit chamber clean -out 80% TSS Removal Grit Chamber Unique design effectively removes solid pollutants Low Cost Installation Shallow Design Reduces installation costs and maintenance pump -out volume Wide Range of Treatment Capacities Low Flow Control Prevents floatables re- entrainment and optimizes swirling action during low intensity storms Resistant to Washout High Flow Control Provides surge protection during peak flows Traps Oil, Grease and Trash Floatables Baffle Wall Traps hydrocarbons and debris Best standalone treatment technology on the market. The pollutants targeted by most stormwater regulations are sediment, hydrocarbons and debris. While other technologies are useful in removing some of these pollutants, the Vortechs® System is the best standalone solution for addressing all of the target pollutants. Other technologies have inherent design limitations that can compromise treatment efficiency, diminish flow rate capacity and /or obstruct maintenance access. For more than 15 years, Vortechs® Systems have proven their versatility and adaptability on more than 4,500 successful installations. Advantages of the Vortechs® System » Treats Full Range of Flows » Easy Maintenance » Meets Treatment Needs of Commercial, Residential and Municipal Sites. » Shallow System Profile Customizable Design Optimizes Surface Use of Real Estate on High Value Sites Learn More! Call 877.907.8676 or visit us at www.vortechnics.com » Easy Installation » 20 -Year Warranty » Performance Verified Through Lab, Field and Third -Party Testing Wm.... In. Committed to Clean Water' Vortechs® System: a System Sized for Every Application When you specify a Vortechs® System, the Vortechnics team will customize the design to fit your site's unique parameters and provide you with an effective, cost - efficient solution. Each Vortechs® System is custom designed based on: » Removal Efficiency Goals » Drainage Area » Regional Rainfall Intensity Distribution » Design Flow » Site Runoff Coefficient and Time of Concentration » Anticipated Pollutant Characteristics Vortechs® System Sizing Methodology: the Rational Rainfall Method" Differences in local climate and topography make every site unique, so it is important to take these factors into consideration when choosing a stormwater treatment system. Therefore Vortechnics developed the Rational Rainfall Method r"' to accurately design each Vortechs® System. The sizing methodology combines site - specific information, including local historical precipitation records, with laboratory- generated performance data corroborated by third party field studies, ensuring accurate long -term performance. Short duration rain gauge records from across the United States and Canada were analyzed by Vortechnics to determine the percent of the total annual rainfall that fell at a range of intensities. One trend was consistent at all sites: the vast majority of precipitation fell at low intensities and high intensity storms contributed relatively little to the total annual depth. These intensities, along with the total drainage area and runoff coefficient for a specific site, are translated into flow rates using the Rational Rainfall Method TM'. Based on the flow rates calculated for each intensity, an operating rate within a proposed Vortechs® System is determined. Finally, a removal efficiency is selected for each operating rate based on anticipated pollutant characteristics and on full -scale laboratory tests. The relative removal efficiencies at each operating rate are summed to produce a net annual pollutant removal efficiency estimate. Vortechnics typically selects a system size that will provide an 80 percent annual total suspended solids (TSS) load reduction based on laboratory- generated performance curves for 50- micron sediment particles, however the Rational Rainfall Method 111 can accommodate other removal efficiencies or particle sizes. It can also be used to estimate annual hydrocarbon load reductions. Once a system size is established, the internal elements of the system are designed based on information provided by the site engineer. Flow control sizes and shapes, sump depth, spill storage capacity, sediment storage volume and inlet and outlet orientation are determined for each system. In addition, bypass weir calculations are made for offline systems. Typical Vortechs® System Elevation View Concrete Reinforced Rim Elevations to Match C.I. MH Frame for HS20.44 Loading / Finished Grade /and Covers by Vortechnics 7'0"' (2134 mm) Typical Inlet Invert 3.f (914 min) Typical Vortechs® System Orientations End Inlet Learn More! CaII 877.907.8676 or visit us at www.vortechnics.com Risers by Others cutlet t nverse Typical Vortechs® System Plan View Length (L) Grit Chamber Sealant ,Base Sealant .ke -.p .. -..: ..s.. • 4 _ _ Top and Sides Sealed to Vault 1 ✓' _^ Weir and OW-ice Plates Plates --P- Weir • '. ` .. ' Orifice :y " II r 11 C Buy!' Rubber .. Sealant -0.1: 11 Vortechs® System Orientations End Inlet Learn More! CaII 877.907.8676 or visit us at www.vortechnics.com Risers by Others cutlet t nverse Typical Vortechs® System Plan View Length (L) Grit Chamber Sealant ,Base Sealant .ke -.p .. -..: ..s.. •• • i T` 1 / —aoe Aluminum Grit • Chamber . /: N.:7. Sealant Baffle Flow Wall Control Wall Width (W) Offline Committed to Clean Water- Specifying a Vortechs° System Nine precast models are available to treat flow rates from 1.6 cfs to 25 cfs. Sites that generate larger flows can be treated using cast -in -place systems. Vortechs° Systems can be configured in both online and offline orientations depending on water quality objectives and site constraints. They can also be designed to accommodate various inlet and outlet pipe orientations. To provide a tangential inlet to the grit chamber, the inlet pipe must enter at a comer and at a 90 degree angle to the inlet wall. Outlet pipes can exit the end or the side of the system at most angles. Standard Vortechs° System models, peak treatment flow rates, and dimensions are listed below. For assistance with a detailed design, please fill out our Specifiers Worksheet, which is available online at www.vortechnics.com or by calling 877.907.8676. In most cases a site plan will be required for Vortechnics° to complete the design process. Vortechs® Model Grit Chamber Diameter Peak Treatment Flow Approximate Size ft mm cfs I/s ft mm 1000 3 900 1.6 45 9 x 3 2700 x 900 2000 4 1200 2.8 80 10 x 4 3100 x 1200 3000 5 1500 4.5 130 11 x 5 3400 x 1500 4000 6 1800 6.0 170 12 x 6 3700 x 1800 5000 7 2100 8.5 240 13 x 7 4000 x 2100 7000 8 2400 11 310 14 x 8 4300 x 2400 9000 9 • 2700 14 400 15 x 9 4600 x 2700 11000 10 3000 17.5 500 16 x 10 4900 x 3000 16000 12 3700 25 710 18 x 12 5500 x 3700 Engineering Notes • For online Vortechs° Systems without a bypass, sizing criteria is based on providing one square foot of grit chamber surface area for each 100 gpm of peak treatment storm flow rate. For more details about Vortechnics sizing criteria refer to Vortechnics Technical Bulletin 3 available at www.vortechnics.com. • The sizing information above is representative of typical Vortechs° Systems. Construction details may vary depending on the specific application. Any alterations to the sizing chart specifications will appear on Vortechnics dimensional and shop drawings. Contact Vortechnics for the weight of a specific Vortechs° System. • Treatment flow rates greater than 25 cfs can be accommodated using Vortechs° Systems that are constructed on -site using cast -in -place concrete structures. Contact Vortechnics for details. Installing a Vortechs° System The Vortechnics team's superior technical support and customer service continues throughout the bidding process and installation of every Vortechs° System. The Vortechs° System is the only hydrodynamic separator in the industry with a horizontal design. This unique shallow profile can greatly reduce overall project costs, saving both time and money during installation. Because the Vortechs° System requires no on -site assembly, and a Vortechnics representative is always on -site during installation, most Vortechs° System installations are completed in under two hours. Vortechnics has set the industry standard with its emphasis on research and development, customization and ease of installation and maintenance. Vortechnics has installed thousands of systems throughout the U.S. and Canada, ensuring that millions of people are able to enjoy the benefits of cleaner, safer water. Learn More! Call 877.907.8676 or visit us at www.vortechnics.com Committed to Clean Water" Vortechs° System The proven stormwater treatment leader ortechmc CONTECH Company Vortechs® System Operation Visit www.vortechnics.com to see an animated Vortechs® System in action! Low Intensity Storm Most storm events (85 percent) do not exceed the two-month storm intensity. During this low intensity storm flow, the water level within the Vortechs® System will rise above the top of the inlet pipe, reducing inflow velocity and turbulence. Oil and fine sediments are usually washed off paved surfaces during these events, and the Vortechs® System treatment efficiencies are in the 80 to 90 percent range for typical urban runoff sediment. High Intensity Storm High intensity storms are infrequent, and storm flows have sufficient energy to wash off the largest sediment particles and pieces of debris. When the high flow control approaches full discharge within the Vortechs® System, storm drains are flowing at peak capacity. The Vortechs® System can accommodate flows up to the specified design storm (i.e. 10 -year storm). Treatment efficiencies remain constant during this phase. Learn More! Call 877.907.8676 or visit us at www.vortechnics.com Medium Intensity Storm During a medium intensity storm, which occurs with a frequency of one to two years, remaining oil washes off pavement, and larger sediment particles and debris are now transported into the Vortechs® System. As flow increases, the water level rises above the low flow control and the tank begins to fill. With the inlet submerged, the oily layer is above the influent flow path, preventing re- entrainment of floating pollutants. Swirling action increases at this stage, which increases sediment removal rates. Storm Subsidence Treated runoff is decanted out of the Vortechs® System at a controlled rate, restoring the water level to a low, dry- weather volume. This reveals a conical pile of accumulated sediment in the center of the grit chamber. Besides facilitating inspection and leaning, the low water level significantly reduces maintenance costs by reducing pump -out volume. Committed to Clean Water- SECTION 02721 STORMWATER TREATMENT SYSTEM PART 1.00 GENERAL 1.1 DESCRIPTION A. Work included: The Contractor, and /or a manufacturer selected by the Contractor and approved by the Engineer, shall furnish all labor, materials, equipment and incidentals required and install all precast concrete stormwater treatment systems and appurtenances in accordance with the Drawings and these specifications. 1.2 QUALITY CONTROL INSPECTION A. The quality of materials, the process of manufacture, and the finished sections shall be subject to inspection by the Engineer. Such inspection may be made at the place of manufacture, or on the work site after delivery, or at both places, and the sections shall be subject to rejection at any time if material conditions fail to meet any of the specification requirements, even though sample sections may have been accepted as satisfactory at the place of manufacture. Sections rejected after delivery to the site shall be marked for identification and shall be removed from the site at once. All sections which have been damaged beyond repair during delivery will be rejected and, if already installed, shall be repaired to the Engineer's acceptance level, if permitted, or removed and replaced, entirely at the Contractor's expense. B. All sections shall be inspected for general appearance, dimensions, soundness, etc. The surface shall be dense, close textured and free of blisters, cracks, roughness and exposure of reinforcement. C. Imperfections may be repaired, subject to the acceptance of the Engineer, after demonstration by the manufacturer that strong and permanent repairs result. Repairs shall be carefully inspected before final acceptance. Cement mortar used for repairs shall have a minimum compressive strength of 4,000 psi (28 MPa) at the end of 7 days and 5,000 psi (34 MPa) at the end of 28 days when tested in 3 inch (76 mm) diameter by 6 inch (152 mm) long cylinders stored in the standard manner. Epoxy mortar may be utilized for repairs. Vortechs° System Technical Specification SECTION 02721 1 1.3 SUBMITTALS A. Shop Drawings The Contractor shall be provided with dimensional drawings and, when specified, utilize these drawings as the basis for preparation of shop drawings showing details for construction, reinforcing, joints and any cast -in -place appurtenances. Shop drawings shall be annotated to indicate all materials to be used and all applicable standards for materials, required tests of materials and design assumptions for structural analysis. Shop drawings shall be prepared at a scale of not less than 3/16- inches per foot (1:75). Six (6) hard copies of said shop drawings shall be submitted to the Engineer for review and approval. PART 2.00 PRODUCTS 2.1 MATERIALS AND DESIGN A. Concrete for precast stormwater treatment systems shall conform to ASTM C 857 and C 858 and meet the following additional requirements: 1. The wall thickness shall not be less than 6 inches (152 mm) or as shown on the dimensional drawings. In all cases the wall thickness shall be no less than the minimum thickness necessary to sustain HS20 -44 (MS18) loading requirements as determined by a Licensed Professional Engineer. 2. Sections shall have tongue and groove or ship -lap joints with a butyl mastic sealant conforming to ASTM C 990. 3. Cement shall be Type II Portland cement conforming to ASTM C 150. 4. All sections shall be cured by an approved method. Sections shall not be shipped until the concrete has attained a compressive strength of 4,000 psi (28 MPa) or until 5 days after fabrication and /or repair, whichever is the longer. 5. Pipe openings shall be sized to accept pipes of the specified size(s) and material(s), and shall be sealed by the Contractor with a hydraulic cement conforming to ASTM C 595M Internal aluminum plate components shall be aluminum alloy 5052 -H32 in accordance with ASTM B 209. C. Sealant to be utilized at the base of the swirl chamber shall be 60 durometer extruded nitrile butadiene rubber (Buna N) and shall be provided to the concrete precaster for installation. D. Brick or masonry used to build the manhole frame to grade shall conform to ASTM C 32 or ASTM C 139 and shall be installed in conformance with all local requirements. E. Casting for manhole frames and covers shall be in accordance with ASTM A48, CL.30B and AASHTO M105. The manhole frame and cover shall be equivalent to Campbell Foundry Pattern #1009A or #1012D custom cast with the Vor(echnics® logo and the words "Vortechs® Stormwater Treatment System ". F. A bitumen sealant in conformance with ASTM C 990 shall be utilized in the sealing of the joint between the swirl chamber and the vault at the long wall tangent points. The butyl material shall be 3/4 -inch thick by 3/4 -inch wide. Vortechs System Technical Specification SECTION 02721 2 2.2 PERFORMANCE Each stormwater treatment system shall adhere to the following performance specifications at the design treatment capacities, as listed below: Table 2.2 Vortechs® Model -, Design Treatment Capacity (cts)I(N.S) Sediment Storage. (yd3) 1000 0 - 1.6 (0 - 45) 0.7 (0.54) 2000 1.6 - 2.8 (45 -80) 1.2 (0.91) 3000 2.8 - 4.5 (80 -125) 1.8 (1.38) 4000 4.5 - 6.0 (125 -175) 2.4 (1.84) 5000 6.0 - 8.5 (175 -240) 3.2 (2.45) 7000 8.5 - 11.0 (240 -315) 4.0 (3.06) 9000 11.0 -14.0 (315 -400) 4.8 (3.67) 11000 14.0 - 17.5 (400 -495) 5.6 (4.28) 16000 17.5 - 25.0 (495 -710) 7.1 (5.43) Each stormwater treatment system shall include a circular aluminum "swirl chamber" (or "grit chamber") with a tangential inlet to induce a swirling flow pattern that will accumulate and store settleable solids in a manner and a location that will prevent re- suspension of previously captured particulates. Each stormwater treatment system shall be of a hydraulic design that includes flow controls designed and certified by a professional engineer using accepted principles of fluid mechanics that raise the water surface inside the tank to a pre- determined level in order to prevent the re- entrainment of trapped floating contaminants. Each stormwater treatment system shall be capable of removing 80% of the net annual Total Suspended Solids (TSS) Toad based on a 50- micron particle size. Annual TSS removal efficiency models shall be based on documented removal efficiency performance from full scale laboratory tests. Annual TSS removal efficiency models shall only be considered valid if they are corroborated by independent third party field testing. Said field testing shall include influent and effluent composite samples from a minimum of ten storms at one location. Individual stormwater treatment systems shall have the Design Treatment Capacity listed in Table 2.2, and shall not re- suspend trapped sediments or re- entrain floating contaminants at flow rates up to and including the specified Design Treatment Capacity. Individual stormwater treatment systems shall have usable sediment storage capacity of not less than the corresponding volume listed in Table 2.2. The systems shall be designed such that the pump -out volume is less than '/ of the total system volume. The systems shall be designed to not allow surcharge of the upstream piping network during dry weather conditions. A water -lock feature shall be incorporated into the design of the stormwater treatment system to prevent the introduction of trapped oil and floatable contaminants to the downstream piping during routine maintenance and to ensure that no oil escapes the system during the ensuing rain event. Direct access shall be provided to the sediment and floatable contaminant storage chambers to facilitate maintenance. There shall be no appurtenances or restrictions within these chambers. Vortechs® System Technical Specification SECTION 02721 3 Stormwater treatment systems shall be completely housed within one rectangular structure. 2.3 MANUFACTURER Each stormwater treatment system shall be of a type that has been installed and used successfully for a minimum of 5 years. The manufacturer of said system shall have been regularly engaged in the engineering design and production of systems for the physical treatment of stormwater runoff during the aforementioned period. Each stormwater treatment system shall be a Vortechs System as manufactured by Vortechnics , Inc., 200 Enterprise Drive, Scarborough, Maine 04074, phone: 207 - 885 -9830, fax: 207 - 885 -9825; and as protected under U.S. Patent #5,759,415. PART 3.00 EXECUTION 3.1 INSTALLATION A. Each Stormwater Treatment System shall be constructed according to the sizes shown on the Drawings and as specified herein. Install at elevations and locations shown on the Drawings or as otherwise directed by the Engineer. B. Place the precast base unit on a granular subbase of minimum thickness of six inches (152 mm) after compaction or of greater thickness and compaction if specified elsewhere. The granular subbase shall be checked for level prior to setting and the precast base section of the trap shall be checked for level at all four corners after it is set. If the slope from any corner to any other corner exceeds 0.5% the base section shall be removed and the granular subbase material re- leveled. C. Prior to setting subsequent sections place bitumen sealant in conformance with ASTM C 990 along the construction joint in the section that is already in place. D. After setting the base and wall or riser sections, prepare to install the swirl chamber. Place the 3/4 -inch (19 mm) thick by 3/4 -inch (19 mm) wide butyl mastic seal vertically on the outside of the swirl chamber starting one inch above the bottom of the swirl chamber and continuing to a height equal to the elevation of the bottom of the upper aperture of the swirl chamber. The butyl mastic seal should abut the downstream side of the pre - drilled mounting holes that attach the swirl chamber to the long walls of the concrete vault. Next, install the extruded Buna N seal on the bottom edge of the 180 degree downstream section of the swirl chamber by first applying a bead of Sikaflex -la polyurethane elastomeric sealant into the extruded slot then slide the seal onto the swirl chamber. The extruded seal should extend 3- inches (76 mm) upstream of the mounting holes, toward the inlet end of the vault. Set the swirl chamber into position and keep the seal approximately V2 -inch (13 mm) above the floor of the concrete vault. Apply a continuous bead of Sikaflex -la sealant under the cupped bottom of the seal. Set the circular swirl chamber on the floor of the vault and anchor it by bolting the swirl chamber to the side walls of the concrete vault at the three (3) tangent points and at the inlet tab using HILTI brand stainless steel drop -in wedge anchors or equivalent 3/8 -inch (10 mm) diameter by 2 -3/4 inch (70 mm) minimum length at heights of approximately three inches (3 ") (76 mm) off the floor and at fifteen inch (15 ") (381 mm) intervals to approximately the same height of the butyl mastic sealant (at locations of pre - drilled holes in aluminum components). Apply a continuous bead of Sikaflex -la sealant to the intersection of the inside bottom edge of the extruded seal and the vault floor. E. If the oil baffle wall (Baffle A) and flow control wall (Baffle B) are not integrally cast -in to riser /wall sections then the Baffle wall panels shall be placed in the formed keyways or between Vortechs System Technical Specification SECTION 02721 4 bolted -in -place angle flanges as provided by the manufacturer. Apply non -shrink grout or Sikaflex-1 a sealant to each end of Baffle A and Baffle B at the upstream intersection with the side walls of the concrete vault. Prior to setting the precast roof section, bitumen sealant equal to ASTM C 990 shall be placed along the top of the oil baffle wall (Baffle A), using more than one layer of mastic if necessary, to a thickness at least 1 -inch (25 mm) greater than the nominal gap between the top of the baffle and the roof section. The nominal gap shall be determined either by field measurement or the shop drawings. Do not seal the top of Baffle B unless specified on the shop drawings to do so. After placement of the roof section has compressed the butyl mastic sealant in the gap over Baffle A, finish sealing the gap with an approved non - shrink grout on both sides of the gap using the butyl mastic as a backing material to which to apply the grout. If roof section is "clamshell" or "bathtub" halves, then finish sealing the ends of the Baffle walls by applying non - shrink grout or Sikaflex -la sealant to each end of Baffle A at the upstream intersection with the side walls of the concrete vault and to each end of Baffle B at the downstream intersection with the side walls of the concrete vault. G. After setting the precast roof section of the stormwater treatment system, set precast concrete manhole riser sections, to the height required to bring the cast iron manhole covers to grade, so that the sections are vertical and in true alignment with a 'h -inch (6 mm) maximum tolerance allowed. Backfill in a careful manner, bringing the fill up in 6- inch (152 mm) lifts on all sides. If leaks appear, clean the inside joints and caulk with lead wool to the satisfaction of the Engineer. Precast sections shall be set in a manner that will result in a watertight joint. In all instances, installation of Stormwater Treatment Systems shall conform to ASTM specification C 891 "Standard Practice for Installation of Underground Precast Utility Structures ". H_ Holes made in the concrete sections for handling or other purposes shall be plugged with a nonshrink grout or by using grout in combination with concrete plugs. Where holes must be cut in the precast sections to accommodate pipes, do all cutting before setting the sections in place to prevent any subsequent jarring which may loosen the mortar joints. The Contractor shall make all pipe connections. Vortechs° System Technical Specification SECTION 02721 5 Mary Rose Holtz Friday, July 13, 2007 10:58 AM Steve Kirk File; Chuck Bull FW: Insurance Auto Auction BCE #11419 10028 Vx Flow Calculations.pdf; 10028 Vx Basin Y Buoy.pdf; 10028 Vx Basin X Buoy.pdf; 10028 Basin X SF Buoy.pdf; sf822- pc- dtl.dwg; sf11.5x36.5- pv- dtl.dwg; STD4k.dwg; STD3k.dwg; 10028 Basin Y SF Buoy.pdf fellcelt,5 'LSD ` r r 6��~ ort- kor- From: Gorneau, Scott [mailto:gorneaus @contech- cpi.com] Sent: Friday, July 13, 2007 8:04 AM To: Mary Rose Holtz Cc: Jon Corkery Subject: Insurance Auto Auction Dear Mary Rose, -BP#51 N x - Foo ri-T-t7' 1A6si \—( — Attached are the flow calculations, buoyancy calcs and standard details of each system specified for Basin X and Basin Y. The flow calculations may need some explaining over the phone and basically with the on -line Vortechs 3000 for Basin Y, we will install a divider wall downstream of the flow control wall. All the orifice flow will go to the StormFilter (not to exceed — 1.8 cfs). The orifice is designed to pass the WWHM off -line flow rate of 0.66 cfs to the StormFilter before bypassing through the Vortechs. I think its best to stick with a Vortechs 4000 for Basin X. In terms of cost we will help the customer out by offering a price reduction off our standard list. The Vortechs 4000 will work in conjuction with the new flow splitter device in the existing SDMH Jon has called out. What needs to be considered are the backwater effects produced by the Vortechs • When the a maximum flow of 2.15 cfs is being released from the flow splitter to the Vortechs /StormFilter, it should be noted that the Vortechs will produce about 1 ft of backwater, which may or may not induce a tailwater on the upstream flow splitter. Please keep this in mind when setting the flow splitter control elevations. The buoyancy calcs are considered conservative because I have left the vaults empty (no sump water), removed the cartridges and flow kits (which weigh 95 lbs each when dry and up to 250 lbs each wet), and included a 15% factor of safety. For the StormFilter vaults I have assumed 0.6 ft of cover on top of the units; that is soil or pavement. I can make adjustments to the buoyancy calculations if the groundwater elevation is too low and please confirm the final rim elevations over the StormFilter and Vortechs vaults. My feeling is we may have to flush mount the StormFilter units to allow for adequate inside height clearance per the details attached. The Vortechs systems are all set and Basin X will have 0.6 ft of cover and Basin Y will have 1.1 ft of cover. One small change to consider on Basin Y is the vault layout. You can introduce the inlet pipe on the long side of the StormFilter vault rather than the end wall. This might eliminate the need for the new CB Type 1 and make the plumbing a little easier. If at all possible we would prefer to see the pumps located downstream of any treatment system simply to reduce emulsification, churning and pulverizing of the pollutants. If this can't work, maybe you could located the pump downstream of the Vortechs system on Basin X. This will ensure the Vortechs has better chance at seeing coarse size particles (50 to 150 microns) and non - emulsified oils and grease. Look forward to hearing from you soon. Regards, f 616,A) lode. ,„)4 .4;44 -,.„4„; Port) 14 (Auer 1 5e,k‘ 91104 4,4,, 1 1 W. Scott Gorneau, P.E., CPSWQ Senior Engineer - Business Development CONTECH Stormwater Solutions Inc. 200 Enterprise Drive, Scarborough, ME 04074 T: 877 - 907 -8676 Ext 232 F: 207 - 885 -9825 www.contech- cpi.com Disclaimer The information contained in this message may be confidential and /or proprietary, and legally protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any retention, dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by replying to the message and permanently deleting it from your computer. Thank you CONTECH Construction Products Inc. 2 STORMFILTER® ESTIMATED BUOYANCY CALCULATIONS Insurance Auto Auction ►�l�`g Tukwila, WA { r( ( �`'r� ���L1 a- 3G STORMWATER 11.5X36.5 Panel Vault System U� - �LUTIONS_ System Basin X Tank Specifications: Flow Control Specifications: Outside Length: 37.50 ft • Height of Wall: 4.83 ft Outside Width: 12.50 ft . Width of Wall: 11.50 ft Inside Height: 6.50 ft . Thickness: 0.42 ft Baffle Specifications: Other Specifications: Height of Baffle: 0.00 ft External Wall Thickness: 0.50 ft Width of Baffle: 6.00 ft Top Slab Thickness: 0.67 ft Thickness: 0.00 ft Bottom Slab Thickness: 0.67 ft r Bottom Slab Extension: 0.00 ft Collar Thickness: 1.00 ft Unit Weight of Concrete: 150.0 lb/ft3 Unit Weight of Water: 62.4 lb/ft3 Unit Weight of Saturated Soil: 47.6 lb/ft3 Unit Weight of Unsaturated Soil: 110.0 lb/ft3 Water Table Elevation: 10.5 ft Finished Grade Elevation: 15.0 ft Depth of Overlying Saturated Soil: 0.0 ft Volume: 0.00 ft3 Depth of Overlying Unsaturated Soil: 0.6 ft Volume: 281.25 ft3 ITEM WEIGHTITONS) WEIGHT (LBF) Top Slab 22.8 45,629 t/ Bottom Slab 23.6 47,109 '' Base Extension or Collar 0.0 0,000 Side Walls 18.1 36,286 V End Walls 5.6 11,213 Baffle 0.0 0,000 Flow Control Wall 1.7 3,499V Overlying Saturated Soil 0.0 0,000 Overlying Unsaturated Soil 15.5 30,938 7 Weight of water in tank 0.0 0,000 TOTAL 87.3 174,674 %A/; IAA 004 : 1,v0 lC Height of Water Table Above Bottom of Tank: 3.89 ft L._ / OUT - Corresponding water table elevation: 10.45 ft ,+..7 o Volume of Water Displaced by Tank: 1,823.ft 3 W. Buoyancy Force of Displaced Water X 15% F.O.S.: 130,850 lb ■ (Assumes 0' of water in tank) Net Buoyancy Force down: 43,824 Ibf Calculated by: WSG 7/12/2007 Checked by: VORTECHS SYSTEM® Insurance Ad/&LITCAlJ `ri0:■ i ELF• MWA� ESTIMATED BUOYANCY CALCULATIONS Auto Auction Tukwila, WA 0�` °r- R Model 3000�'`�;��U`3� 1 '`'� System Basin Y ----SOLUTIONS- Tank Specifications: Flow Control Specifications: Outside Length: 12.00 ft Height of Wall: 6.75 ft Outside Width: 6.00 ft Width of Wall: 5.00 ft Inside Height: 7.00 ft Thickness: 0.29 ft Baffle Specifications: Other Specifications: Height of Baffle: 6.09 ft External Wall Thickness: 0.50 ft Width of Baffle: 5.00 ft Top Slab Thickness: 0.62 if Thickness: 0.29 if Bottom Slab Thickness: 0.62 ft Bottom Slab Extension: 0.17 ft Collar Thickness: 0.62 ft Unit Weight of Concrete: 150.0 lb/ft3 Unit Weight of Water: 62.4 lb/ft3 Unit Weight of Saturated Soil: 47.6 lb/ft3 Unit Weight of Unsaturated Soil: 110.0 lb/ft3 Water Table Elevation: 7.3 ft Finished Grade Elevation: 13.0 ft Depth of Overlying Saturated Soil: 0.0 ft Volume: 18.71 ft3 Depth of Overlying Unsaturated Soil: 1.1 ft Volume: 114.87 ft3 ITEM WEIGHT (TONS) WEIGHT (LBF) Top Slab 2.7 5,326 Bottom Slab 3.3 6,696 Base Extension or Collar 0.3 0,580 Side Walls 5.7 11,407 End Walls 2.6 5,250 Baffle 0.7 1,325 Flow Control Wall 0.7 1,468 Overlying Saturated Soil 0.4 0,890 Overlying Unsaturated Soil 6.3 12,635 Weight of water in tank 0.0 0,000 TOTAL 22.8 45,578 Height of Water Table Above Bottom of Tank: 3.62 ft Corresponding water table elevation: 7.28 ft Volume of Water Displaced by Tank: 268 ft3 Buoyancy Force of Displaced Water X 15% F.O.S.: 19,258 lb (Assumes 0' of water in tank) Net Buoyancy Force down: 26,320 Ibf Calculated by: 7/12/2007 Checked by: VORTECHS SYSTEM® Insurance A.VaILITOALIIP li-;., i ``r� STORMWATER ESTIMATED BUOYANCY CALCULATIONS Auto Auction Tukwila, WA ° � �� Model 4000 UJ ic( '.jUU �� System Basin X SOLUTIONS_ Tank Specifications: Flow Control Specifications: Outside Length: 13.00 ft Height of Wall: 6.75 ft Outside Width: 7.00 ft Width of Wall: 6.00 ft Inside Height: 7.00 ft Thickness: 0.29 ft Baffle Specifications: Other Specifications: Height of Baffle: 5.92 ft External Wall Thickness: 0.50 if Width of Baffle: 6.00 ft Top Slab Thickness: 0.62 ft Thickness: 0.29 ft Bottom Slab Thickness: 0.62 ft Bottom Slab Extension: 0.17 ft Collar Thickness: 0.62 ft Unit Weight of Concrete: 150.0 lb/ft3 Unit Weight of Water: 62.4 lb/ft3 Unit Weight of Saturated Soil: 47.6 lb/ft3 Unit Weight of Unsaturated Soil: 110.0 lb/ft3 Water Table Elevation: 10.5 ft Finished Grade Elevation: 15.0 ft Depth of Overlying Saturated Soil: 0.0 ft Volume: 25.38 ft3 Depth of Overlying Unsaturated Soil: 0.6 ft Volume: 86.07 ft3 ITEM WEIGHT (TONS) WEIGHT (LBF) Top Slab 3.5 7,093 Bottom Slab 4.2 8,463 Base Extension or Collar 0.3 0,643 Side Walls 6.7 13,373 End Walls 3.2 6,300 Baffle 0.8 1,545 Flow Control Wall 0.9 1,762 Overlying Saturated Soil 0.6 1,208 Overlying Unsaturated Soil 4.7 9,467 Weight of water in tank 0.0 0,000 TOTAL 24.9 49,855 Height of Water Table Above Bottom of Tank: 4.29 ft Corresponding water table elevation: 10.45 ft Volume of Water Displaced by Tank: 399 ft 3 Buoyancy Force of Displaced Water X 15% F.O.S.: 28,630 lb (Assumes 0' of water in tank) Net Buoyancy Force down: 21,226 Ibf Calculated by: WSG 7/12/2007 liChecked by: ,M��kr _ ORAlIWRTER VORTECHS SYSTEM® Ati& Insurance ESTIMATED FLOW CALCULATIONS Auto Auction Tukwila, WA Model 3000 System Basin Y urlON5. Orifice 0.56 0.19 7.36 Weir Cd = 6.2 (ft) = 0.17 (ft) = 9.03 Cd = A (sf) = Crest Elevation (ft) = Weir Crest Length Crest Elevation Head (ft) Elevation (ft) Orifice Flow (cfs) Weir Flow (cfs) Total Flow (cfs) 0.00 7.36 0.00 0.00 0.00 0.25 7.61 0.21 0.00 0.21 0.50 7.86 0.50 0.00 0.50 0.75 8.11 0.66 0.00 0.66 1.00 8.36 0.79 0.00 0.79 1.25 8.61 0.90 0.00 0.90 1 50 : .' 8.8.6 1.00 0.00x: ;1.00 1.75 9.11 1.09 0.03 1.11 2.00 9.36 1.17 0.20 1.37 2.25 9.61 1.25 0.47 1.72 2.50 9.86 1.32 0.80 2.12 2.75 10.11 1.39 1.19 2.58 3.00 10.36 1.45 1.62 3.08 3.06 10.43 1i47 - - - -., 1.74 3.21 Calculated by: 1/20/2001 'Checked by: 1 u.0 10.5 t MAx. f1.w,t -/ .o sro2,.d4-il.r�(t_. Vortechs System Stage Discharge Curve 10.0 9.5 9.0 c 0 m 8.5 W 8.0 I 75 1 ,_ . 7.0 i 6.5 ] - -- -... 6.0 0.0 Orifice Grest 0.5 1.0 1.5 2.0 Discharge (cfs) (cfs) 2.5 LO" -YfL ro $-t 6 2.w,FtlT .ft_ 7/12/2007 I VORTECHS SYSTEM° ESTIMATED FLOW CALCULATIONS sro�nnwATER SOLUTIONS. Insurance Auto Auction Tukwila, WA Model 4000 System Basin X Orifice Cd = 0.56 A (sf) = 0.57 Crest Elevation (ft) = 10.53 Weir Cd = 6.2 Weir Crest Length (ft) = 0.17 Crest Elevation (ft) = 12.11 Head (ft) 0.00 Elevation (ft) Orifice Flow (cfs) Weir Flow (cfs) Total Flow (cfs) 10,53 0.00 0.00 0.00 0.20 10.73 0.38 0.00 0.38 0.40 10.93 1.07 0.00 1.07 0.60 11.13 1.60 0.00 1.60 0.80 11.33 1.96 0.00 1.96 0.92 1:1.45 2.15 0.00 2.15 1.12 11.65 2.44 0.00 1.52 11.85 2.69 1.72 2.92 0.00 2.69 2.92 0.06 3.19 1.92 12.45 2.12 2.32 12.65 3.71 0.21 3.55 2.52 2.7 13,05 13.25 3.88 0.42 0.67 3.95 4.38 4.84 4.05 1.28 5.33 3.00 13.53 4.27 Calculated by: WSG 1.78 Vortechs System Stage Discharge Curve • 9.0 -i- I 8.0 • • Orifice Crest 0.0 1.0 2.0 3.0 4.0 5.0 Discharge (cfs) 6.0 7.0 g '1eau saL`7t) ayPRSS w't An '3,01..-1 II-w+Fi& 1Z- (@ goo-y- AynAs5 ,'�vkuy DEPARTMENT OF ECOLOGY CORRESPONDENCE DATED MAY 15, 2007 •• a r • a • . 1 1 ,, 6 1 v n a 1 U I J I L C no. 1)7y r. 4/7 STATE OF WASHINGTON DEPARTMENT OF ECOLOGY Northwest Regional Office • 3190 160th Avenue SE - Bellevue, Washington 98008 -5452 • (425) 649 -7000 May 15, 2007 Ms. Joanna Spencer, PE City of Tukwila Public Works Department 6300 Southcenter Blvd. Tukwila, WA 98188 Subject: Comments for the Storm Drainage and Water Quality.. Improvements Permit Application #P W07 -037 as an independent action and review comments for Insurance Auto Auctions Inc at 8801 E Marginal Way South, Tukwila, WA Dear Ms Joanna Spencer: Ecology has reviewed the proposed Storm Drainage and Water Quality Improvements #PW07- 037 Permit Application for Insurance Auto Auctions Inc located at 8801 E Marginal Way South and aportion of the adjacent property to the south at 9229 E Marginal Way South, Tukwila, Washington. Below are Ecology's comments for the proposed improvements. Note; that this work may be conducted as an independent action under the Model Toxics Control with prior notice and agreement from Ecology. Here are the comments for the drainage report and permit application for Insurance Auto Auctions Inc (IAAI) prepared by Barghausen Consulting Engineers Inc and dated March 30, 2007: 1. Ecology agrees that IAAI should move forward with the proposed water quality improvements. The storm water data collected to date are very limited and Ecology will work closely with IAAI for collecting additional data. If the data collected in the future show that the water quality at the.outfalls do not meet Ecology's effluent limits and may potentially impact Duwamish Waterway sediment, then Ecology will require additional best management practices (BMPs). 2. The permit application will be updated to comply with the Stormwater Management Manual for Western Washington dated February 2005 replacing the King County 1998 guidance. All calculations for flow and capacity will be footnoted and attached to the report or figures. 3. Section 5, page 6 of the Drainage Report. It is Ecology's understanding that any storm over a 2 -year peak flow will by pass the Vortech system, and there is rio backwater into the existing storm water system as stated. Please revise this paragraph to reflect the design. May. 15. 20U/ 10:13AM Northwest Regional Office No. 1559 P. 5/5 4. Section 2.1, page 2 and Section 3, page 4. I believe there is an above ground drainage pipe from the Boeing Thompson/Boeing Isaacson property at the north that discharges onto the 8801site above ground. This drainage pipe is located about midway between the North Outfall and the northwest corner of the former manufacturing building. Will this discharge be added to the north outfall? 5. Monitoring needs to be conducted at the North Outfall oil-water skimmer to confirm water quality conditions prior to discharge to the waterway and to confirm that the skimmer meets discharge limits. Parameters of concern are oil and grease. These are Ecology's comments to date, and we look forward to working with you with the revised application. If you have questions or would like to discuss these points please contact Ecology and for engineering questions please contact Sunny Becker at 425 -649 -7187 and site management issues please contact me at 425 -649 -7249. Sincerely, Maura S. O'Bneq PG/HG #869 Professional Geologist/J- lydrogeologist and Site Manager Toxics Cleanup Program cc Steve Tibble, Insurance Auto Auctions Inc Jay Grubb, Barghausen Consulting Engineers Inc Mark Barbieri, Washington Holdings LLC Eric Buckler, Paccar Inc Kris Flint, EPA May. ,,. cvvr Iv. i[nm ivortnwest rcegionai umce No. 1559 F. 1/5 STATE OF WASHINGTON DEPARTMENT OF ECOLOGY Northwest Regional Office • 3190 160th Avenue SE • Bellevue, Washington 98008 -5452 • (42S) 649 -7000 May 15, 2007 Mr Steven Tibble Insurance Auto Auctions 850 East•Algonquin Road Schamberg, IL 60173 - Subject: Storm Water and Water Quality Improvements for IAAI at 8801 E Marginal Way South Site, former Paccar Kenworth Truck, Tukwila, WA Dear Steve Tibble: The proposed Storm Drainage and Water Quality Improvements at 880 t site may take place as an independent action under the Model Toxics Control Act, our state cleanup regulations. WAC 173- 340 - 515(2) allows independent remedial actions to take place, even on sites where consent decree negotiations have been initiated, as long as they do not foreclose or preempt further remedial actions and Ecology has prior notice of the independent action and does not object. The water quality work here is even a bit removed from what the WAC provision contemplates because it is not the PLP doing independent work, but a lessee on the property. That makes it very important that we have documentation showing the PLP knows about the independent work and they are in agreement with this work moving forward. As for public comment, if the work is being done pursuant to a Shoreline Management Act permit, then that permit has public comment processes and opportunities. As long as those are moving forward as they would for any other Shoreline Management Act permit, I have no concerns on the public comment side of things. These water quality (WQ) improvements will require trenching to install new storm drain piping and localized excavation to install a Vortech pretreatment system before discharge at the two outfalls into the Lower Duwamish.. Some of the trenching and excavation is estimated to or may penetrate into locations where there is conta mination from past site activities. Note all work would be conducted outside with open air conditions. Paccar has offered to prepare an overlay to show known sample results and concentration of chemicals of concern at the proposed trenching and excavation locations. Paccar estimates that most of the teaching and excavation will occur where there is no or there is limited contamination. Ecology recommends a Compliance Monitoring Plan for side wall and base of any trenching and excavations in order to confirm surrounding conditions and to safeguard the new improvements. May. 15. 2007 10:12AM Northwest Regional Office No. 1559 P. 3/5 Note, City of Tukwila has reported that this proposed WQ improvement work was approved under SEPA in 2004. No further SEPA comment process is planned at this time. This work is estimated to be implemented this dry season between July 1 and October 1, 2007. Thank you and I look forward to working with you to complete these improvements_ If you need more information, please contact me at the Northwest Regional Office at 425 -649 -7249. Sincerely, Maura S O' D Tien, PG/HG #869 Professional Geologist/Hydrogeologist and Site Manager Toxics Cleanup Program Cc Mark Barbieri, Washington Holdings LLC Eric Buckler, Paccar Inc Joanna Spencer, City of Tukwila Kris Flint, EPA Jay Grubb, Barghausen Consulting Engineers Inc IMAURA SALAMAH O'BRIEN I HYDRAULIC CALCULATIONS 5 year 5.283667 10 year 5.889929 25 year 50 year 100 year 6.646349 7.205847 7.763804 Yearly Peaks for Predeveloped and Developed - Mitigated Year Predeveloped Developed 1949 0.516 4.442 1950 0.998 6.329 1951 1.099 4.284 1952 0.340 3.882 1953 0.261 3.489 1954 0.382 4.136 1955 0.674 4.435 1956 0.577 4.279 1957 0.435 4.839 1958 0.473 4.403 1959 0.391 3.381 1960 0.686 4.195 1961 0.397 3.679 1962 0.232 3.804 1963 0.313 3.602 1964 0.391 4.275 1965 0.292 3.835 1966 0.300 3.797 1967 0.675 5.719 1968 0.399 6.470 1969 0.395 3.457 1970 0.312 3.802 1971 0.284 3.708 1972 0.815 5.269 1973 0.355 3.463 1974 0.383 3.800 1975 0.586 4.996 1976 0.361 3.438 1977 0.036 4.448 1978 0.315 5.763 1979 0.183 5.696 1980 0.530 4.686 1981 0.280 5.224 1982 0.536 7.113 1983 0.486 5.277 1984 0.309 3.948 1985 0.167 3.774 1986 0.845 4.562 1987 0.715 6.590 1988 0.259 3.172 1989 0.164 3.982 1990 1.157 7.102 1991 1.010 6.672 1992 0.334 3.932 1993 0.373 2.723 1994 0.094 3.258 1995 0.530 4.057 1996 1.037 4.670 1997 0.953 4.540 1998 0.194 4.964 Ranked Yearly Peaks for Predeveloped and Developed - Mitigated Rank Predeveloped Developed 1 1.0994 7.1019 2 1.0371 6.6717 3 1.0101 6.5902 4 0.9980 6.4701 5 0.9529 6.3289 6 0.8452 5.7633 7 0.8155 5.7194 8 0.7151 5.6957 9 0.6856 5.2766 10 0.6747 5.2694 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 0.6737 0.5858 0.5765 0.5356 0.5299 0.5295 0.5164 0.4856 0.4735 0.4351 0.3989 0.3969 0.3946 0.3914 0.3913 0.3834 0.3822 0.3727 0.3610 0.3553 0.3402 0.3337 0.3148 0.3126 0.3119 0.3091 0.2995 0.2916 0.2843 0.2798 0.2606 0.2589 0.2317 0.1936 0.1827 0.1673 0.1639 0.0942 0.0357 5.2244 4.9956 4.9644 4.8387 4.6858 4.6696 4.5624 4.5396 4.4475 4.4423 4.4346 4.4030 4.2844 4.2788 4.2753 4.1947 4.1356 4.0567 3.9819 3.9484 3.9316 3.8823 3.8353 3.8044 3.8019 3.8004 3.7974 3.7743 3.7085 3.6788 3.6018 3.4888 3.4633 3.4570 3.4385 3.3811 3.2585 3.1721 2.7225 1/2 2 year to 50 year Flow(CFS) Predev Final Percentage Pass /Fail 0.2225 3792 30816 812.0 Fail 0.2308 3506 30185 860.0 Fail 0.2392 3247 29492 908.0 Fail 0.2476 3047 28905 948.0 Fail 0.2559 2855 28331 992.0 Fail 0.2643 2637 27726 1051.0 Fail 0.2726 2466 27196 1102.0 Fail 0.2810 2298 26714 1162.0 Fail 0.2893 2133 26153 1226.0 Fail 0.2977 2010 25675 1277.0 Fail 0.3060 1884 25202 1337.0 Fail 0.3144 1779 24785 1393.0 Fail 0.3228 1684 24338 1445.0 Fail 0.3311 1584 23834 1504.0 Fail 0.3395 1497 23426 1564.0 Fail 0.3478 1407 22997 1634.0 Fail 0.3562 1319 22567 1710.0 Fail 0.3645 1246 22195 1781.0 Fail 0.3729 1191 21814 1831.0 Fail 0.3813 1114 21415 1922.0 Fail 0.3896 1057 21064 1992.0 Fail 0.3980 1011 20705 2047.0 Fail 0.4063 954 20315 2129.0 Fail 0.4147 904 19986 2210.0 Fail 0.4230 861 19622 2278.0 Fail 0.4314 819 19320 2358.0 Fail 0.4397 778 19022 2444.0 Fail 0.4481 738 18693 2532.0 Fail n Agcq 111 ionnn 1A n s-,41 0.4648 671 18101 2697.0 Fail 0.4732 643 17803 2768.0 Fail 0.4815 617 17545 2843.0 Fail 0.4899 588 17286 2939.0 Fail 0.4982 566 17032 3009.0 Fail 0.5066 534 16800 3146.0 Fail 0.5150 511 16528 3234.0 Fail 0.5233 475 16256 3422.0 Fail 0.5317 454 16002 3524.0 Fail 0.5400 432 15717 3638.0 Fail 0.5484 418 15485 3704.0 Fail 0.5567 392 15244 3888.0 Fail 0.5651 372 14972 4024.0 Fail 0.5734 354 14748 4166.0 Fail 0.5818 342 14542 4252.0 Fail 0.5902 322 14310 4444.0 Fail 0.5985 306 14082 4601.0 Fail 0.6069 283 13859 4897.0 Fail 0.6152 273 13613 4986.0 Fail 0.6236 260 13416 5160.0 Fail 0.6319 246 13241 5382.0 Fail 0.6403 233 13026 5590.0 Fail 0.6486 224 12855 5738.0 Fail 0.6570 211 12653 5996.0 Fail 0.6654 206 12491 6063.0 Fail 0.6737 199 12316 6188.0 Fail 0.6821 189 12136 6421.0 Fail 0.6904 183 11987 6550.0 Fail 0.6988 174 11786 6773.0 Fail 0.7071 168 11588 6897.0 Fail 0.7155 162 11435 7058.0 Fail 0.7239 155 11260 7264.0 Fail 0.7322 151 11067 7329.0 Fail 0.7406 145 10913 7526.0 Fail 0.7489 143 10742 7511.0 Fail 0.7573 135 10576 7834.0 Fail 0.7656 128 10440 8156.0 Fail 0.7740 123 10287 8363.0 Fail 0.7823 113 10138 8971.0 Fail 0.7907 109 10006 9179.0 Fail 0.7991 107 9853 9208.0 Fail 0.8074 96 9721 10126.0 Fail 0.8158 90 9594 10660.0 Fail 0.8241 83 9454 11390.0 Fail 0.8325 75 9336 12448.0 Fail 0.8408 73 9204 12608.0 Fail 0.8492 63 9064 14387.0 Fail 0.8576 61 8941 14657.0 Fail 0.8659 58 8810 15189.0 Fail 0.8743 52 8665 16663.0 Fail 0.8826 49 8547 17442.0 Fail 0.8910 47 8441 17959.0 Fail 0.8993 43 8297 19295.0 Fail 0.9077 39 8157 20915.0 Fail 0.9160 34 8016 23576.0 Fail 0.9244 31 7902 25490.0 Fail 0.9328 29 7810 26931.0 Fail 0.9411 26 7701 29619.0 Fail 0.9495 25 7587 30348.0 Fail 0.9578 23 7495 32586.0 Fail 0.9662 21 7368 35085.0 Fail 0.9745 21 7276 34647.0 Fail 0.9829 20 7184 35920.0 Fail 0.9912 18 7078 39322.0 Fail 0.9996 17 6982 41070.0 Fail 1.0080 15 6894 45960.0 Fail 1.0163 13 6802 52323.0 Fail 1.0247 12 6719 55991.0 Fail 1.0330 9 6609 73433.0 Fail 1.0414 7 6513 93042.0 Fail 1.0497 7 6434 91914.0 Fail The development has an increase in flow durations from 1/2 predeveloped 2 year flow to the 2 year flow or more than a 10% increase from the 2 year to the 50 year flow. The Development Has an increase in flow durations for more than 50% of the flows from the 2 year to the 50 year flow. Water Quality BHP Flow and Volume. On -line facility volume: 2.0763 acre -feet On -line facility target flow: 2.4555 cfs. Adjusted for 15 min: 2.7748 cfs. Off -line facility target flow: 1.409 cfs. Adjusted for 15 min: 1.5922 cfs. program and accompanying documentation as provided 'as -is' without warranty of any kind. The entire risk regarding the performance and results of this program is assumed by the user. AQUA TERRA Consultants and the Washington State Department of Ecology disclaims all warranties, either expressed or implied, including but not limited to implied warranties of program and accompanying documentation. In no event shall AQUA TERRA Consultants and /or the Washington State Department of Ecology be liable for any damages whatsoever (including without limitation to damages for loss of business profits, loss of business information, business interruption, and the like) arising out of the user of, or inability to use this program even if AQUA TERRA Consultants or the Washington State Department of Ecology has been advised of the possibility of such damages. YEAR 3 FLOW 100 L4823 50 .4344 25 10 • 5 2872 .3433 2 .1841 MIMI" WIIW�III IONI SE II I Yearly Peaks for Predeveloped iiall� YEAR IFL0000a 10); 3.213 50 !{2.982 25 1,2.T� 3c ���W� 10 Y.437 S 12.18 10E-2 1 10 20 39 40 50 60 78 80 90 Cumulative Probability Flow Frequency Chart 1 CE-5 310E -4 10E -3 10E -2 10E -1 1 Percent Exceeding Yearly Peaks for developed W/O Pond Duration Graph Yearly Peaks for Developed W /Pond WESTERN WASHINGTON HYDROLOGY MODEL V2 PROJECT REPORT Project Name: Site Address: Date : City Report Gage Data Start • Data End • Precip Scale: default Tukwila 7/5/2007 Seatac 1948 1998 1.00 PREDEVELOPED LAND USE Basin Basin Flows To Point GroundWater: No Land Use TILL FOREST: 1 of Compliance Acres 7.2 DEVELOPED LAND USE Basin Flows To GroundWater: Land Use IMPERVIOUS: Basin 1 Point of Compliance No Acres 7.2 IRCHRES (POND) INFORMATION Flow Frequency Return Period 2 year 5 year 10 year 25 year 50 year 100 year Flow Frequency Return Period 2 year 5 year 10 year 25 year 50 year 100 year Flow Frequency Return Period 2 year 5 year 10 year ANALYSIS RESULTS Return Periods for Predeveloped Flow (cfs) 0.184128 0.287171 0.343255 0.400392 0.434375 0.46233 Return Periods for Developed Unmitigated Flow (cfs) 1.798206 2.186344 2.437211 2.750212 2.981728 3.212606 Return Periods for Developed Mitigated Flow (cfs) 0 0 0 25 year 0 50 year 0 100 year 0 Yearly Peaks for Predeveloped and Developed - Mitigated Year Predeveloped Developed 1949 0.214 0.000 1950 0.413 0.000 1951 0.455 0.000 1952 0.141 0.000 1953 0.108 0.000 1954 0.158 0.000 1955 0.279 0.000 1956 0.239 0.000 1957 0.180 0.000 1958 0.196 0.000 1959 0.162 0.000 1960 0.284 0.000 1961 0.164 0.000 1962 0.096 0.000 1963 0.129 0.000 1964 0.162 0.000 1965 0.121 0.000 1966 0.124 0.000 1967 0.279 0.000 1968 0.165 0.000 1969 0.163 0.000 1970 0.129 0.000 1971 0.118 0.000 1972 0.337 0.000 1973 0.147 0.000 1974 0.159 0.000 1975 0.242 0.000 1976 0.149 0.000 1977 0.015 0.000 1978 0.130 0.000 1979 0.076 0.000 1980 0.219 0.000 1981 0.116 0.000 1982 0.222 0.000 1983 0.201 0.000 1984 0.128 0.000 1985 0.069 0.000 1986 0.350 0.000 1987 0.296 0.000 1988 0.107 0.000 1989 0.068 0.000 1990 0.479 0.000 1991 0.418 0.000 1992 0.138 0.000 1993 0.154 0.000 1994 0.039 0.000 1995 0.219 0.000 1996 0.429 0.000 1997 0.394 0.000 1998 0.080 0.000 Ranked Yearly Peaks for Predeveloped and Developed - Mitigated Rank Predeveloped Developed 1 0.4549 0.0000 2 0.4291 0.0000 3 0.4180 0.0000 4 0.4130 0.0000 5 0.3943 0.0000 6 0.3498 0.0000 7 0.3374 0.0000 8 0.2959 0.0000 9 0.2837 0.0000 10 0.2792 0.0000 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 0.2788 0.2424 0.2386 0.2216 0.2193 0.2191 0.2137 0.2009 0.1959 0.1801 0.1651 0.1642 0.1633 0.1619 0.1619 0.1587 0.1581 0.1542 0.1494 0.1470 0.1408 0.1381 0.1303 0.1294 0.1291 0.1279 0.1239 0.1207 0.1176 0.1158 0.1078 0.1071 0.0959 0.0801 0.0756 0.0692 0.0678 0.0390 0.0148 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 1/2 2 year to 50 year Flow(CFS) Predev Final Percentage Pass /Fail 0.0921 3778 0 .0 Pass 0.0955 3528 0 .0 Pass 0.0990 3310 0 .0 Pass 0.1024 3061 0 .0 Pass 0.1059 2886 0 .0 Pass 0.1094 2647 0 .0 Pass 0.1128 2489 0 0 Pass 0.1163 2286 0 0 Pass 0.1197 2160 0 .0 Pass 0.1232 2008 0 .0 Pass 0.1266 1909 0 .0 Pass 0.1301 1778 0 .0 Pass 0.1336 1690 0 .0 Pass 0.1370 1584 0 .0 Pass 0.1405 1503 0 .0 Pass 0.1439 1423 0 .0 Pass 0.1474 1322 0 .0 Pass 0.1508 1261 0 .0 Pass 0.1543 1190 0 .0 Pass 0.1578 1121 0 .0 Pass 0.1612 1056 0 .0 Pass 0.1647 1016 0 .0 Pass 0.1681 954 0 .0 Pass 0.1716 908 0 .0 Pass 0.1750 861 0 .0 Pass 0.1785 822 0 .0 Pass 0.1820 786 0 .0 Pass 0.1854 740 0 .0 Pass n 1 000 /1q n n o-,.... 0.1923 671 0 .0 Pass 0.1958 652 0 .0 Pass 0.1993 619 0 .0 Pass 0.2027 593 0 .0 Pass 0.2062 567 0 .0 Pass 0.2096 540 0 .0 Pass 0.2131 509 0 .0 Pass 0.2165 478 0 .0 Pass 0.2200 460 0 .0 Pass 0.2235 434 0 .0 Pass 0.2269 421 0 .0 Pass 0.2304 393 0 .0 Pass 0.2338 376 0 .0 Pass 0.2373 354 0 .0 Pass 0.2407 344 0 .0 Pass 0.2442 322 0 .0 Pass 0.2477 310 0 .0 Pass 0.2511 282 0 .0 Pass 0.2546 275 0 .0 Pass 0.2580 260 0 .0 Pass 0.2615 246 0 .0 Pass 0.2649 234 0 .0 Pass 0.2684 224 0 .0 Pass 0.2719 216 0 .0 Pass 0.2753 206 0 .0 Pass 0.2788 200 0 .0 Pass 0.2822 189 0 .0 Pass 0.2857 184 0 .0 Pass 0.2892 174 0 .0 Pass 0.2926 171 0 .0 Pass 0.2961 160 0 .0 Pass 0.2995 155 0 .0 Pass 0.3030 152 0 .0 Pass 0.3064 145 0 .0 Pass 0.3099 144 0 .0 Pass 0.3134 136 0 .0 Pass 0.3168 130 0 .0 Pass 0.3203 122 0 .0 Pass 0.3237 115 0 .0 Pass 0.3272 109 0 .0 Pass 0.3306 107 0 .0 Pass 0.3341 96 0 .0 Pass 0.3376 91 0 .0 Pass 0.3410 83 0 .0 Pass 0.3445 75 0 .0 Pass 0.3479 73 0 .0 Pass 0.3514 64 0 .0 Pass 0.3548 61 0 .0 Pass 0.3583 58 0 .0 Pass 0.3618 56 0 .0 Pass 0.3652 49 0 .0 Pass 0.3687 47 0 .0 Pass 0.3721 43 0 .0 Pass 0.3756 39 0 .0 Pass 0.3791 34 0 .0 Pass 0.3825 31 0 .0 Pass 0.3860 30 0 .0 Pass 0.3894 26 0 .0 Pass 0.3929 25 0 .0 Pass 0.3963 23 0 .0 Pass 0.3998 21 0 .0 Pass 0.4033 21 0 .0 Pass 0.4067 20 0 .0 Pass 0.4102 18 0 .0 Pass 0.4136 17 0 .0 Pass 0.4171 14 0 .0 Pass 0.4205 13 0 .0 Pass 0.4240 12 0 .0 Pass 0.4275 10 0 .0 Pass 0.4309 7 0 .0 Pass 0.4344 7 0 .0 Pass Water Quality BMP Flow and Volume. On -line facility volume: 0.8591 acre -feet On -line facility target flow: 1.0161 cfs. Adjusted for 15 min: 1.1481 cfs. Off -line facility target flow: 0.583 cfs. Adjusted for 15 min: 0.6588 cfs. program and accompanying documentation as provided 'as -is' without warranty of any kind. The entire risk regarding the performance and results of this program is assumed by the user. AQUA TERRA Consultants and the Washington State Department of Ecology disclaims all warranties, either expressed or implied, including but not limited to implied warranties of program and accompanying documentation. In no event shall AQUA TERRA Consultants and /or the Washington State Department of Ecology be liable for any damages whatsoever (including without limitation to damages for loss of business profits, loss of business information, business interruption, and the like) arising out of the user of, or inability to use this program even if AQUA TERRA Consultants or the Washington State Department of Ecology has been advised of the possibility of such damages. YEAR t FLOW fcf9 11/00 .4623 yk '50 .4344 .25 .4004 10 ;.3433 5 ; .2872 '2 :.1841 Yearly Peaks for Predeveloped YEAR FLAW 10 3213 50 X2.982 25 !12.750 10';2.437 5 12188 2 .1.798 Yearly Peaks for developed W/O Pond Yearly Peaks for Developed W /Pond Flow Frequency Chart 0.35 026 0 0.18 c 0.09 0 o Predeveloped x Developed will Facility 1.5 2 10E -4 10E -3 1 O -2 10E -1 1 10 Percent Exceeding Duration Graph BASIN MAP OUTTALL 10 0410 32. ....„.---e 18 - . 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U a a Azi F ip•P•\ 11 nnnc\ 1 i a14\ ovhihif IR Er' F1VED STORM DRAINAGLREPORT Insurance Auto Auctions 8801 East Marginal Way South Tukwila, Washington Prepared for: Insurance Auto Auctions 850 East Algonquin Road Schamberg, IL 60173 March 30, 2007 Revised May 18, 2007 Our Job No. 11419 CIVIL ENGINEERING, LAND PLANNING, SURVEYING, ENVIRONMENTAL SERVICES 18215 72ND AVENUE SOUTH KENT, WA 98032 (425) 251 -6222 (425) 251 -8782 FAX BRANCH OFFICES • OLYMPIA, WA • TACOMA, WA • SACRAMENTO, CA • TEMECULA, CA www.barghausen.com TABLE OF CONTENTS 1.0 PROJECT OVERVIEW 1 2.0 CONDITIONS AND REQUIREMENTS SUMMARY 1 2.1 Analysis of the Eight Core Requirements 1 2.2 Analysis of the Five Special Requirements 3 3.0 OFF -SITE ANALYSIS 3 4.0 FLOW CONTROL AND WATER QUALITY FACILITY ANALYSIS AND DESIGN 4 4.1 Existing Site Hydrology 4 4.2 Developed Site Hydrology 4 4.3 Performance Standards 4 4.4 Flow Control System 4 4.5 Water Quality System 5 5.0 CONVEYANCE SYSTEM ANALYSIS AND DESIGN 5 6.0 SPECIAL REPORTS AND STUDIES 5 7.0 OTHER PERMITS 5 8.0 ESC ANALYSIS AND DESIGN 5 9.0 BOND QUANTITIES, FACILITY SUMMARIES, AND DECLARATION OF COVENANT 6 10.0 OPERATIONS AND MAINTENANCE MANUAL 6 APPENDIX FIGURE - VICINITY MAP VORTECHS SYSTEM STANDARD DETAILS DEPARTMENT OF ECOLOGY CORRESPONDENCE DATED MAY 15, 2007 HYDRAULIC CALCULATIONS CONCEPTUAL WATER TREATMENT PLAN 11419.007.doc 1.0 PROJECT OVERVIEW The area is comprised of two main buildings on approximately 24 acres. The site is paved. The property was previously used by the Kenworth Truck Company through an industrial waste discharge permit issued to Paccar — Seattle (S03- 001784). The facility is directly adjacent to the Duwamish Waterway on East Marginal Way South. The street address is 8801 East Marginal Way South, Tukwila, Washington. The primary activities at the facility include temporary storage of vehicles prior to resale. No vehicle washing, servicing or refueling, lube, or other service is planned at the site. This will occur off -site at other facilities permitted to provide these services. Some office operations will occur on the property as well. These operations are in support of the related vehicle storage and resale. There is an existing 36 -inch diameter pipe coursing southwesterly through the eastern portion of the site that will remain untouched with this project. Flow control is not a requirement for this project site since there is direct discharge to the Duwamish Waterway. The method of water quality for this project site is to provide "Vortechs" hydrodynamic separation vaults draining into the existing storm drainage system. Please refer to Section 4.0 of this report for the sizing calculations to size the "Vortechs" vaults. A conceptual plan approval of water quality treatment has been obtained from the City of Tukwila (please refer to the enclosed Conceptual Water Quality Facility Plan drawing). As a condition of occupancy, the tenant has agreed to provide and install water quality facilities. The conceptual plan outlines these facilities and forms the basis of this final design. 2.0 CONDITIONS AND REQUIREMENTS SUMMARY 2.1 Analysis of the Eight Core Requirements Core Requirement No. 1: Discharge at the Natural Location. Response: Under existing conditions, the site has direct discharge into the Duwamish Waterway. No change is proposed for the outlet locations; therefore, discharge at the natural location is maintained. Core Requirement No. 2: Off-Site Analysis. Response: The discharge for the site is direct discharge into the Duwamish Waterway. There is very little tributary off -site area, if any, so an off -site analysis is not applicable. Core Requirement No. 3: Flow Control. Response: Core Requirement No. 3 does not apply to this project site since there is direct discharge into the Duwamish Waterway and the City of Tukwila has adopted the 1998 King County, Washington Surface Water Design Manual (KCSWDM), which states sites that discharge directly into this location of the Duwamish Water do not have to provide Flow Control. 1 11419.007.doc Core Requirement No. 4: Conveyance System. Response: Stormwater runoff from the northern portion of the facility discharges to a series of existing catch basins and drainpipe conveyance on site. Drainage from these catch basins flows to an existing oil /water separator prior to discharging to the Duwamish River at the north outfall (see Drawing 2). The northern drainage area includes all of the buildings, including roof drains. Stormwater runoff from the southern portion of the facility discharges to the existing southern outfall into the Duwamish River, again via a series of existing catch basins and pipe conveyance system. No detrimental flooding or other problems are known to occur with this system. The majority of the southern drainage area includes the south parking lot and areas subject to vehicular travel. Core Requirement No. 5: Temporary Erosion and Sediment Control. Response: The erosion and sediment control plan prepared for the demolition phase of this project will be utilized and will conform to all requirements of the 1998 KCSWDM, Appendix D, Erosion and Sedimentation Control Methods, for sites of this nature. Core Requirement No. 6: Maintenance and Operations. Response: This project will concur with all maintenance and operations requirements of the City of Tukwila for projects of this nature. Core Requirement No. 7: Financial Guarantees and Liability. Response: This project will conform to all financial guarantee and liability requirements as dictated by the City of Tukwila for projects of this nature. Core Requirement No. 8: Water Quality. Response: This project is a redevelopment of an existing facility; as such the Basic Water Quality menu is applicable. The treatment goal of this menu is facility choices, which are designed to remove 80 percent of the total suspended soils (TSS). This project proposes two stormwater treatment devices to treat the runoff of a 2 -year storm. The vaults have been sized in accordance with Washington State Department of Ecology requirements as allowed by the City of Tukwila on past projects that have been designed utilizing "Vortechs" hydrodynamic separation vaults. A conceptual stormwater treatment plan has been approved by the City of Tukwila, using the " Vortechs" units. This plan has been followed as a guideline for the water quality design. These separation vaults have been revised to allow for a "flow- through" design. The design capacity will allow for the peak storm events of up to 100 years return frequency. This design better enables the facility to meet minimum treatment goals. Runoff flow quantities were initially calculated using the SBUH methodology as allowed by the 1998 KCSWDM. Subsequent review by the WSDOE for storm drainage and water quality indicated the use of the WWHM dated February 2005. These calculations based upon the run time series computation result in lower peak flows throughout the system. Summarized peak flow comparison is as follows (calculations are included in the Appendix): 2 11419.007.doc The design for hydrodynamic plan uses the greater peak flow values of SBUH methodology. 2.2 Analysis of the Five Special Requirements Special Requirement No. 1: Other Adopted Area - Specific Requirements. Response: This project is not known to be within an area with other adopted area - specific requirements; therefore, this project is not under the requirements of any other basin plan, critical drainage area plan, etc., to the best of our knowledge at this time. Special Requirement No. 2: Development Within a Floodplain or Floodway. Response: This project site is adjacent to the Duwamish Waterway and the ordinary high water mark has been surveyed for this waterway. FEMA Maps will be consulted and the 100 -year floodplain boundaries for the site will be shown; however, it is unlikely that the project site is ever inundated by water during a 100 -year event. Special Requirement No. 3: Flood Protection Facilities. Response: This project is not adjacent to a Class 1 or 2 Stream that has a flood protection facility nor does it propose to construct a new or modify an existing flood protection facility; therefore, this requirement does not apply. Special Requirement No. 4: Source Control. Response: This project will provide water quality source control applicable to the proposed project in accordance with the Industrial Waste Discharge Permit issued by DOE for this project. Special Requirement No. 5: Oil Control. Response: This site is not a proposed high use site; therefore, the requirements of the High -Use Oil Control Menu will not be applicable to this project site. 3.0 OFF -SITE ANALYSIS The off -site analysis for this project site was based on the survey created by this office and utilized in determining the discharge location for runoff from the project site, which is directly into the Duwamish Waterway. This is direct discharge from this project site and the site does not 3 11419.007.doc 2 -Year (cfs) 100 -Year (cfs) SBUH WWHM SBUH WWHM Basin A Basin B1, B2, and B3 2.04 1.09 5.52 1.96 5.14 3.07 13.7 5.48 The design for hydrodynamic plan uses the greater peak flow values of SBUH methodology. 2.2 Analysis of the Five Special Requirements Special Requirement No. 1: Other Adopted Area - Specific Requirements. Response: This project is not known to be within an area with other adopted area - specific requirements; therefore, this project is not under the requirements of any other basin plan, critical drainage area plan, etc., to the best of our knowledge at this time. Special Requirement No. 2: Development Within a Floodplain or Floodway. Response: This project site is adjacent to the Duwamish Waterway and the ordinary high water mark has been surveyed for this waterway. FEMA Maps will be consulted and the 100 -year floodplain boundaries for the site will be shown; however, it is unlikely that the project site is ever inundated by water during a 100 -year event. Special Requirement No. 3: Flood Protection Facilities. Response: This project is not adjacent to a Class 1 or 2 Stream that has a flood protection facility nor does it propose to construct a new or modify an existing flood protection facility; therefore, this requirement does not apply. Special Requirement No. 4: Source Control. Response: This project will provide water quality source control applicable to the proposed project in accordance with the Industrial Waste Discharge Permit issued by DOE for this project. Special Requirement No. 5: Oil Control. Response: This site is not a proposed high use site; therefore, the requirements of the High -Use Oil Control Menu will not be applicable to this project site. 3.0 OFF -SITE ANALYSIS The off -site analysis for this project site was based on the survey created by this office and utilized in determining the discharge location for runoff from the project site, which is directly into the Duwamish Waterway. This is direct discharge from this project site and the site does not 3 11419.007.doc discharge to any other property; therefore, the downstream drainage course is not an issue on this project site. The adjoining properties all have their own catch basin collection and pipe conveyance facilities discharging into the Duwamish Waterway and do not drain onto the project site. Minor incidental areas may sheetflow tributary drainages along the property lines. These areas are considered negligible with regards to the overall design. The total upstream basin contributing to the 36 -inch diameter culvert traversing through the project site is not known at this time but it is thought that the culvert contains portions, if not all, of the Boeing Field runoff from upstream. 4.0 FLOW CONTROL AND WATER QUALITY FACILITY ANALYSIS AND DESIGN 4.1 Existing Site Hydrology Under existing conditions, the site is fully developed and is operational at this time. The majority of the site consists of impervious surfaces including buildings and paved surfaces. The site tends to drain in a westerly direction into the Duwamish Waterway and there are existing catch basin collection and pipe conveyance facilities throughout the entire project site that route runoff into the Duwamish Waterway. A water quality facility exists within the northwest corner of the property and treats runoff from that and other portions of the site. 4.2 Developed Site Hydrology This project is exempt from Flow Control since it directly discharges into the Duwamish Waterway as allowed by the City of Tukwila and the 1998 KCSWDM. Water quality treatment is required. The proposal for this development is to selectively route runoff from surfaces subject to vehicular travel into a " Vortechs" vault sized according to the following pages of this report. Please refer to those pages for the sizing calculations. After treatment water from the "Vortechs" vault will be routed back into the existing conveyance system to directly discharge into the Duwamish Waterway. 4.3 Performance Standards Flow Control is not a requirement for this project site. The new conveyance system capacity standards utilized for this project site will be designed to the Santa Barbara Urban Hydrograph (SBUH) method for determining flow rates for the on -site conveyance system since the project site is over 10 acres in size. The SBUH method is also used for determining the water quality flow rate for treatment. The area - specific Basic Water Quality Treatment Menu for this project site allows the use of stormfilters as allowed by the City of Tukwila for redevelopment projects of this nature, which should greatly improve the water quality leaving the project site. 4.4 Flow Control System Not applicable. 4 11419.007.doc 4.5 Water Quality System Please see the illustrated sketch of the proposed water quality facilities and appurtenances. Also, the calculations are located on the following pages of this report for sizing of the "Vortechs" vault. 5.0 CONVEYANCE SYSTEM ANALYSIS AND DESIGN The conveyance system has been sized using the SBUH methodology, which is a hydrograph methodology. Since the new conveyance facilities with basins B -1 and B -2 are required to provide for the bypass of the 2 -year storm to water quality vaults, this design storm event is utilized. This allows for the collection of larger basin areas to be directed to treatment areas. Greater storm events are allowed to bypass the treatment facilities and enter the existing pipe conveyance system. All new storm conveyance facilities within Basin A not bypassing the stormwater quality storm are sized to convey up to the 100 -year storm event. A simple spreadsheet has been utilized to size the pipe conveyance system. Pipes are at minimum grade and elevations to allow the collection of the 2 -year flow from the far reaches of the site without the use of pumps. Ductile iron pipe is utilized in instances to allow for a shallow installation, further extending the collection reach. Since these pipes and new conveyances are sized only for the 2 -year event, greater storm events will allow for an overflow into the remaining existing storm pipe and collection system, effectively creating an "offline" condition for the stormwater treatment vaults and preventing the discharge of trapped pollutants into the downstream drainages. 6.0 SPECIAL REPORTS AND STUDIES There are no known special reports or studies related to the storm drainage hydrology for this project. 7.0 OTHER PERMITS To our knowledge, no other permits related to this work are required. Please see the enclosed approved conceptual water quality treatment plan. 8.0 ESC ANALYSIS AND DESIGN The previously prepared erosion and sedimentation control plan has been submitted for this project and approved by the City of Tukwila. Please refer to that document for the requirements for erosion and sedimentation control. 5 11419.007.doc 9.0 BOND QUANTITIES, FACILITY SUMMARIES, AND DECLARATION OF COVENANT These documents will be prepared with the final Storm Drainage Report prepared for this development should they be required by the City of Tukwila. 10.0 OPERATIONS AND MAINTENANCE MANUAL An operations and maintenance manual will be prepared with the final Storm Drainage Report should it be required by the City of Tukwila. 6 11419.007.doc APPENDIX ----Solidi Park S Don n'St S 92nd PI S 93rd St ��. stn r 02004 MapQuest.com, Inc.; 02004 NAVTEQ Figure 1 VICINITY MAP 8801 WEST MARGINAL WAY TUKWILA, WA NORTH SOURCE: MAPOUEST P: \11000S \11419\DOC\VICINITY MAP.DOC VORTECHS SYSTEM STANDARD DETAILS a rifial® 1‘,--Trove. itriVE1 SIORMWATER ..,� May 16, 2007 Mr. Charles Bull Barghausen Consulting Engineers, Inc. 18215 72nd Avenue South Kent, WA 98032 RE: Insurance Auto Auction Tukwila, WA Vortechs® systems Dear Mr. Bull: The purpose of this letter is to provide supporting information on the suitability of the Vortechs® system at the Site. The Vortechs® system will be utilized as a pretreatment device and provide for the retrofit of additional treatment systems. The Washington Department of Ecology (WADOE) finds that the Vortechs® system, sized at an operating rate of 35 GPM/sf or less at the water quality design flow (i.e., in this case the 2 -yr flow), will protect and extend the maintenance cycle of basic or enhanced treatment devices downstream. The system has also been recognized for its water quality benefits in retrofit situations and its ability to provide effective removal of deicing grit/sand. Because the specified Vortechs® systems have been sized according to these approval guidelines, they are considered suitable for treating stormwater at the Site. Additionally, the Vortechs® system will also provide removal of floatables such as trash and oils and grease and secondary pollutants associated with fine sediment Each Vortechs® system specified on the plan is able to convey the 100 -yr flow rate; therefore, they can be placed on the main storm drain line (i.e., no extemal bypass required). The maximum water surface during the peak flow event is typically equal to the top of the flow control wall and therefore mitigates the risk of solids resuspension. Please do not hesitate to call if you have any questions or require more information. Sincerely, Z-67 W. Scott Gorneau, P.E., CPSWQ Industrial Applications Engineer c`o-ntechstormwater.com 12021=6`NE- Airport Way, Portland OR, 97220 Toll free: 800.548.4667 Fax: 503.240.9551. NOTE: VORTECHS SYSTEMS INSTALLED IN A BYPASS CONFIGURATION REQUIRE AN UPSTREAM DIVERSION STRUCTURE THAT SHALL BE DETAILED BY THE CONSULTING ENGINEER WITH ELEVATION AND WEIR WIDTH DATA PROVIDED BY CONTECH STORMWATER SOLUTIONS. LA 90' INLET VARIES. SEE NOTES 8 & 9. NLET PIPE MUST BE A CORNER INLET rO INTRODUCE FLOW TANGENTIALLY TO THE SWIRL CHAMBER. CONCRETE REINFORCED FOR HS20 LOADING 12'-0' SEALANT EXTRUDED BUNA N SEAL .. -Y .._ ALUMINUM SWIRL "• CHAMBER } • 1 =10' '. 1'3 ` _ L . ' •' ' + :-..07 t. SEALANT BAFFLE WALL PLAN VIEW B - B TdT T"P INLET INV 3'-t7' '1YP BUTYL RUBBER SEALANT TOP AND SIDES SEALED TO VAULT i. WEER AND ORIFICE PLATES 3%0' TYP 6' CONCRETE TYP OUTLET MAY VARY. SEE NOTE 9 FLOW CONTROL WALL RIM ELEVATIONS TO MATCH FINISHED GRADE ?.� Z ' ;.y +..'RISERS BY OTHERS WEIR ORIFICE Y -r TYP -B1 OUTLET INVERT MINIMUM 6' COMPACTED GRAVEL SECTION A - A NOTES: 1. STORMWATER TREATMENT SYSTEM (SWTS) SHALL HAVE: PEAK TREATMENT CAPACITY: 6 CFS SEDIMENT STORAGE: 2.4 CU YD SEDIMENT CHAMBER DN' 6' MIN 2. SWTS SHALL BE CONTAIED IN ONE RECTANGULAR STRUCTURE 3. SWTS REMOVAL EFFICIENCY SHALL BE DOCUMENTED BASED ON PARTICLE SI2E 4. SPITS SHALL RETAIN FLOATABLES AND TRAPPED SEDIMENT UP TO AND INCLUDING PEAK TREATMENT CAPACITY 5. SWTS INVERTS IN AND OUT ARE TYPICALLY AT THE SAME ELEVATION 6. SWTS SHALL NOT BE COMPROMISED BY EFFECTS OF DOWNSTREAM TAILWATER T. SWTS SHALL HAVE NO INTERNAL COMPONENTS THAT OBSTRUCT MANTENiANCE ACCESS 6. INLET PIPE MUST BE PERPENDICULAR TO THE STRUCTURE 9. PIPE ORIENTATION MAY VARY: SEE SITE PLAN FOR SIZE AND LOCATION 10. PURCHASER SHALL NOT BE RESPONSIBLE FOR ASSEMBLY OF UNIT 11. MANHOLE FRAMES AND PERFORATED COVERS SUPPUEC WITH SYSTEM. NOT INSTALLED 12. PURCHASER TO PREPARE EXCAVATION AND PROVIDE CRANE FOR OFF-LOADING AND SETTING AT TIME OF OEL'VERY 13. VORTECHS SYSTEMS BY CONTECH STORMWATER SOLUTIONS: PORTLAND. OR (600)548 -4667; SCARBOROUGH, ME (677) 907-8876; UNTHICLrM, MD (866) 740-3318. PROPRIETARY INFORMATION - NOT TO BE USED FOR CONSTRUCTION PURPOSES This CADD Fla Is for the purpose of specifying stormwater treatment equipment tc be furnished by CONTECH SOm a,t rSauttans and may only be tortstened to other documents exactly as provided by CONTECH Stormwatet Solutions. Title hick ktfomtatort, ezcludtng the CONTECH Stom:watet Sok tlors legs and the Vortechs Stammrata; T:satrnent System designetion mid petal nbrber, may be dsteted 11 necessary. Revisions to any part of this CADD file without prior coordination with CCNTECH Stomaxater Sokutitifts shall be corskiered u?aucito:'irsd use of proprietary Mtarrnaten 4%.1t. er i r AF Ir 14"siF! STORMWATER SOLUTIONS- STANDARD DETAIL STORMWATER TREATMENT SYSTEM VORTECHS® MODEL 4000 US. PATENT No. 5,759,415 NOTE: VORTECHS SYSTEMS INSTALLED IN A BYPASS CONFIGURATION REQUIRE AN UPSTREAM DIVERSION STRUCTURE THAT SHALL BE DETAILED BY THE CONSULTING ENGINEER WITH ELEVATION AND WEIR WIDTH DATA PROVIDED BY . ONTECH STORMWATER SOLUTIONS. 9O- SEALANT EXTRUDED BUNA N SEAL • ALUMINUM SWIRL CHAMBER INLET VARIES, SEE NOTES 8 & 9. 4LET PIPE MUST BE A CORNER INLET 'O INTRODUCE FLOW TANGENTIALLY TO THE SWIRL CHAMBER. CONCRETE REINFORCED FOR HS20 LOADING / SEALANT BAFFLE WALL PLAN VIEW B - B ORIFICE • 1 7-6' CONCRETE TYP OUTLET MAY VARY, SEE NOTE 9 FLOW CONTROL WALL INLET :NVE.RT 1 3'C' •.'Y? ti TOP AND SIDES SEALED TO VAULT BUTYL — RUBBER SEALANT `.1 WEIR AND ORIFICE PLATES 3'-0" TYP WEIR ORIFICE c; • 3'-0' TY? RIM ELEVATIONS TO MATCH FINISHED GRADE RISERS BY OTHERS -};1 OUTLET INVERT MINIMUM 6' COMPACTED GRAVEL J SECTION A - A NOTES: 1. STORMWATER TREATMENT SYSTEM (SWTS) SHALL HAVE: PEAK TREATMENT CAPACITY: 14 CFS SEDIMENT STORAGE 4.8 CU YD SEDIMENT CHAMBER DA• B MIN 2. SWTS SHALL BE CONTAINED IN ONE RECTANGULAR STRUCTURE 3. SWTS REMOVAL EFFICIENCY SHALL BE DOCUMENTED BASED ON PARTICLE SIZE 4. SWTS SHALL RETAIN FLOATABLES AND TRAPPED SEDIMENT UP TC AND INCLUDING PEAK TREATMENT CAPACITY 5. SWTS INVERTS IN AND CUT ARE TYPICALLY AT THE SAME ELEVATION 6. SWTS SHALL NOT SE COMPROMISED BY EFFECTS OP DOWNSTREAM TAILWATER 1 7. SWTS SHALL HAVE NO INTERNAL COMPONENTS THAT OBSTRUCT MAINTENANCE ACCESS 9. INLET PIPE MUST BE PERPENDICULAR TO THE STRUCTURE 9. PIPE ORIENTATION MAY VARY; SEE SITE PLAN FOR SIZE AND LOCATION 10. PURCHASER SHALL NOT BE RESPONSIBLE FOR ASSEMBLY OF UNIT 11: MANHOLE FRAMES AND PERFORATED COVERS SUPPLIED WITH SYSTEM, NOT INSTALLED 12. PURCHASER TO PREPARE EXCAVATION AND PROVIDE CRANE FOR OFF-LOADING AND SETTING AT TIME OF DELIVERY 13. VORTECHS SYSTEMS BY CONTECH STORMWATER SOLUTIONS; PORPJWD. OR (800)548 -4867; SCARBOROUGH, ME (877) 907 -8676; UNT.HICUM, MD m66)740-3318. PROPRIETARY INFORMATION — NOT TO BE USED FOR CONSTRUCTION PURPOSES This CADD f:le is for the purpose of specifying strrrwater haatnent equipment to be furnished by CONTECH Stomwder St:Ani ns and nay only be tra.• sieved to other dCCumants exactly as provided by CONTECH Stmt.:water Solutions. Title biCic Information, exetuding 186 CONTECH Stomtwater Solutions logs and the Vorteche Stormwaier Treatment System designation and patent rxn:ber, may be deleted If necessary. Revisions to any part cf fhla CADD Lila without prior c crdlhallen with CONTECH Stoeowatet Soh6cns shall be corsklered unatatated use of pr hay intorryafnr_ w uwewu® ¶. 4i i i i �F! STORMWATER SOLUTIONS.. STANDARD DETAIL STORMWATER TREATMENT SYSTEM VORTECHS® MODEL 9000 U.S. PATENT No. 5,759,415 : : ' ' : i : ': : - " : . : : ' '. . ' ' s ' ' ' , • : <t, 0 a*.' .. : : A:zii. !c:2•1%, ; >4--: il.i :-C's "*".. : s- : : 1 -:•. ' , • . .: f. .;• ' :: '• 0 °0 ,o o° oo Oo c 0 A C j C�cosn (rnr7 Chet proven, renaUe stormwater treatment every tome° The Vortechs® System is the proven stormwater solution chosen by engineers, contractors, regulators, developers and conservation organizations to meet water quality challenges and to ensure that urban runoff is as clean as possible. The EPA award - winning design efficiently removes contaminated sediment, floating hydrocarbons, and debris from stormwater. The Vortechs® System's swirl- concentrator and flow controls work together to eliminate turbulence and to provide positive removal efficiencies throughout the full range of operation. With the most comprehensive lab, field and third party testing in the industry, the Vortechs® System delivers proven results and site - specific solutions for all applications and rainfall conditions. Vortechs® System Features and Benefits Easy Maintenance Unobstructed Manhole Access Allows for easy grit chamber clean -out 80% TSS Removal Grit Chamber Unique design effectively removes solid pollutants Low Cost Installation Shallow Design Reduces installation costs and maintenance pump -out volume Wide Range of Treatment Capacities Low Flow Control Prevents floatables re- entrainment and optimizes swirling action during low intensity storms Resistant to Washout High Flow Control Provides surge protection during peak flows Traps Oil, Grease and Trash Floatables Baffle Wall Traps hydrocarbons and debris (Best staridaione treatment technology on the market. The pollutants targeted by most stormwater regulations are sediment, hydrocarbons and debris. While other technologies are useful in removing some of these pollutants, the Vortechs® System is the best standalone solution for addressing all of the target pollutants. Other technologies have inherent design limitations that can compromise treatment efficiency, diminish flow rate capacity and /or obstruct maintenance access. For more than 15 years, Vortechs® Systems have proven their versatility and adaptability on more than 4,500 successful installations. Advantages of the Vortechs® System » Treats Full Range of Flows » Easy Maintenance » Meets Treatment Needs of Commercial, Residential and Municipal Sites DD Shallow System Profile DD Customizable Design DD Optimizes Surface Use of Real Estate on High Value Sites Learn More! Call 877.907.8676 or visit us at www.vortechnics.com » Easy Installation » 20 -Year Warranty » Performance Verified Through Lab, Field and Third -Party Testing vn.un, tua vonspenner, . Committed to Clean Water" Vortechs® System: a System Rzedl or Every App caVo When you specify a Vortechs® System, the Vortechnics team will customize the design to fit your site's unique parameters and provide you with an effective, cost - efficient solution. Each Vortechs® System is custom designed based on: » Removal Efficiency Goals » Drainage Area » Regional Rainfall Intensity Distribution » Design Flow » Site Runoff Coefficient and Time of Concentration » Anticipated Pollutant Characteristics Vortechs® System Sizing Met odoiegy: the 68atio,ai 68ainfaii Method- Differences in local climate and topography make every site unique, so it is important to take these factors into consideration when choosing a stormwater treatment system. Therefore Vortechnics developed the Rational Rainfall Method T" to accurately design each Vortechs® System. The sizing methodology combines site - specific information, including local historical precipitation records, with laboratory- generated performance data con-oborated by third party field studies, ensuring accurate Tong -term performance. Short duration rain gauge records from across the United States and Canada were analyzed by Vortechnics to determine the percent of the total annual rainfall that fell at a range of intensities. One trend was consistent at all sites: the vast majority of precipitation fell at low intensities and high intensity storms contributed relatively little to the total annual depth. These intensities, along with the total drainage area and runoff coefficient for a specific site, are translated into flow rates using the Rational Rainfall Method TM'. Based on the flow rates calculated for each intensity, an operating rate within a proposed Vortechs® System is determined. Finally, a removal efficiency is selected for each operating rate based on anticipated pollutant characteristics and on full -scale laboratory tests. The relative removal efficiencies at each operating rate are summed to produce a net annual pollutant removal efficiency estimate. Vortechnics typically selects a system size that will provide an 80 percent annual total suspended solids (TSS) load reduction based on laboratory- generated performance curves for 50- micron sediment particles, however the Rational Rainfall Method""' can accommodate other removal efficiencies or particle sizes. It can also be used to estimate annual hydrocarbon load reductions. Once a system size is established, the intemal elements of the system are designed based on information provided by the site engineer. Flow control sizes and shapes, sump depth, spill storage capacity, sediment storage volume and inlet and outlet orientation are determined for each system. In addition, bypass weir calculations are made for offline systems. Typical Vortechs® System Elevation View Concrete Reinforced Rim Elevations to Match C.I. MH Frame for HS20 -44 Loading /Finished Grade and Covers by Vortechnics I 7'0" (2134 mm) Typical Inlet Invert 3 (914m) Typical Vortechs® System Orientations t side Inlet End Inlet Risers by Others Outlet 4 Inverse Learn More! Call 877.907.8676 or visit us at www.vortechnics.com Typical Vortechs® System Plan View Length (L) Sealant Grit Chamber Base Sealant Top and Sides Sealed to Vault Weir and Orifice Plates –fl Weir ' ' ■ . . 1. Orifice Buyll Rubber 11 Sealant—c :. II Vortechs® System Orientations t side Inlet End Inlet Risers by Others Outlet 4 Inverse Learn More! Call 877.907.8676 or visit us at www.vortechnics.com Typical Vortechs® System Plan View Length (L) Sealant Grit Chamber Base Sealant Sealant Baffle Flow Wall Control Wall Width (W) Offline Committed to Clean Water" • - - -- T`= �— % - - - -- ' Aluminum Grit • Chamber } . . 1. Sealant Baffle Flow Wall Control Wall Width (W) Offline Committed to Clean Water" Spedfyyung a Vortechs® System Nine precast models are available to treat flow rates from 1.6 cfs to 25 cfs. Sites that generate larger flows can be treated using cast -in -place systems. Vortechs® Systems can be configured in both online and offline orientations depending on water quality objectives and site constraints. They can also be designed to accommodate various inlet and outlet pipe orientations. To provide a tangential inlet to the grit chamber, the inlet pipe must enter at a corner and at a 90 degree angle to the inlet wall. Outlet pipes can exit the end or the side of the system at most angles. Standard Vortechs® System models, peak treatment flow rates, and dimensions are listed below. For assistance with a detailed design, please fill out our Specifier's Worksheet, which is available online at www.vortechnics.com or by calling 877.907.8676. In most cases a site plan will be required for Vortechnics® to complete the design process. Vortechs® Model Grit Chamber Diameter Peak Treatment Flow Approximate Size ft mm cfs I/s ft mm 1000 3 900 1.6 45 9 x 3 2700 x 900 2000 4 1200 2.8 80 10 x 4 3100 x 1200 3000 5 1500 4.5 130 11 x 5 3400 x 1500 4000 6 1800 6.0 170 12 x 6 3700 x 1800 5000 7 2100 8.5 240 13 x 7 4000 x 2100 7000 8 2400 11 310 14 x 8 4300 x 2400 9000 9 2700 14 400 15 x 9 4600 x 2700 11000 10 3000 17.5 500 16 x 10 4900 x 3000 16000 12 3700 25 710 18 x 12 5500 x 3700 Engineering Notes o For online Vortechs® Systems without a bypass, sizing criteria is based on providing one square foot of grit chamber surface area for each 100 gpm of peak treatment storm Flow rate. For more details about Vortechnics sizing criteria refer to Vortechnics Technical Bulletin 3 available at www.vortechnics.com. o The sizing information above is representative of typical Vortechs® Systems. Construction details may vary depending on the specific application. Any alterations to the sizing chart specifications will appear on Vortechnics dimensional and shop drawings. Contact Vortechnics for the weight of a specific Vortechs° System. o Treatment flow rates greater than 25 ds can be accommodated using Vortechs® Systems that are constructed on -site using cast -in -place concrete structures. Contact Vortechnics for details. [Instamng a Vortechs® System The Vortechnics team's superior technical support and customer service continues throughout the bidding process and installation of every Vortechs® System. The Vortechs® System is the only hydrodynamic separator in the industry with a horizontal design. This unique shallow profile can greatly reduce overall project costs, saving both time and money during installation. Because the Vortechs® System requires no on -site assembly, and a Vortechnics representative is always on -site during installation, most Vortechs® System installations are completed in under two hours. Vortechnics has set the industry standard with its emphasis on research and development, customization and ease of installation and maintenance. Vortechnics has installed thousands of systems throughout the U.S. and Canada, ensuring that millions of people are able to enjoy the benefits of cleaner, safer water. Learn More! Call 877.907.8676 or visit us at www.vortechnics.com Committed to Clean Water' ° IoM C n'JUCCOA Vortechs® System Op rrat c Visit www.vortechnics.com to see an animated Vortechs® System in action! Low intensity Storm rJ CJ Most storm events (85 percent) do not exceed the two -month storm intensity. During this low intensity storm flow, the water level within the Vortechs® System will rise above the top of the inlet pipe, reducing inflow velocity and turbulence. Oil and fine sediments are usually washed off paved surfaces during these events, and the Vortechs® System treatment efficiencies are in the 80 to 90 percent range for typical urban runoff sediment. High intensity Storm High intensity storms are infrequent, and storm flows have sufficient energy to wash off the largest sediment particles and pieces of debris. When the high flow control approaches full discharge within the Vortechs® System, storm drains are flowing at peak capacity. The Vortechs® System can accommodate flows up to the specified design storm (i.e. 10 -year storm). Treatment efficiencies remain constant during this phase. Learn More! Call 877.907.8676 or visit us at www.vortechnics.com Medium intensity Storm During a medium intensity storm, which occurs with a frequency of one to two years, remaining oil washes off pavement, and larger sediment particles and debris are now transported into the Vortechs® System. As flow increases, the water level rises above the low flow control and the tank begins to fill. With the inlet submerged, the oily layer is above the influent flow path, preventing re- entrainment of floating pollutants. Swirling action increases at this stage, which increases sediment removal rates. Storm Subsidence Treated runoff is decanted out of the Vortechs® System at a controlled rate, restoring the water level to a low, dry- weather volume. This reveals a conical pile of accumulated sediment in the center of the grit chamber. Besides facilitating inspection and cleaning, the low water level significantly reduces maintenance costs by reducing pump -out volume. Committed to Clean Water" SECTION 02721 STORMWATER TREATMENT SYSTEM PART 1.00 GENERAL 1.1 DESCRIPTION A. Work included: The Contractor, and /or a manufacturer selected by the Contractor and approved by the Engineer, shall furnish all labor, materials, equipment and incidentals required and install all precast concrete stormwater treatment systems and appurtenances in accordance with the Drawings and these specifications. 1.2 QUALITY CONTROL INSPECTION A. The quality of materials, the process of manufacture, and the finished sections shall be subject to inspection by the Engineer. Such inspection may be made at the place of manufacture, or on the work site after delivery, or at both places, and the sections shall be subject to rejection at any time if material conditions fail to meet any of the specification requirements, even though sample sections may have been accepted as satisfactory at the place of manufacture. Sections rejected after delivery to the site shall be marked for identification and shall be removed from the site at once. All sections which have been damaged beyond repair during delivery will be rejected and, if already installed, shall be repaired to the Engineer's acceptance level, if permitted, or removed and replaced, entirely at the Contractor's expense. B. All sections shall be inspected for general appearance, dimensions, soundness, etc. The surface shall be dense, close textured and free of blisters, cracks, roughness and exposure of reinforcement. C. Imperfections may be repaired, subject to the acceptance of the Engineer, after demonstration by the manufacturer that strong and permanent repairs result. Repairs shall be carefully inspected before final acceptance. Cement mortar used for repairs shall have a minimum compressive strength of 4,000 psi (28 MPa) at the end of 7 days and 5,000 psi (34 MPa) at the end of 28 days when tested in 3 inch (76 mm) diameter by 6 inch (152 mm) long cylinders stored in the standard manner. Epoxy mortar may be utilized for repairs. Vortechs® System Technical Specification SECTION 02721 1 1.3 SUBMITTALS A. Shop Drawings The Contractor shall be provided with dimensional drawings and, when specified, utilize these drawings as the basis for preparation of shop drawings showing details for construction, reinforcing, joints and any cast -in -place appurtenances. Shop drawings shall be annotated to indicate all materials to be used and all applicable standards for materials, required tests of materials and design assumptions for structural analysis. Shop drawings shall be prepared at a scale of not less than 3/16- inches per foot (1:75). Six (6) hard copies of said shop drawings shall be submitted to the Engineer for review and approval. PART 2.00 PRODUCTS 2.1 MATERIALS AND DESIGN A. Concrete for precast stormwater treatment systems shall conform to ASTM C 857 and C 858 and meet the following additional requirements: 1. The wall thickness shall not be less than 6 inches (152 mm) or as shown on the dimensional drawings. In all cases the wall thickness shall be no less than the minimum thickness necessary to sustain HS20 -44 (MS18) loading requirements as determined by a Licensed Professional Engineer. 2. Sections shall have tongue and groove or ship -lap joints with a butyl mastic sealant conforming to ASTM C 990. 3. Cement shall be Type II Portland cement conforming to ASTM C 150. 4. All sections shall be cured by an approved method. Sections shall not be shipped until the concrete has attained a compressive strength of 4,000 psi (28 MPa) or until 5 days after fabrication and /or repair, whichever is the longer. 5. Pipe openings shall be sized to accept pipes of the specified size(s) and material(s), and shall be sealed by the Contractor with a hydraulic cement conforming to ASTM C 595M B. Internal aluminum plate components shall be aluminum alloy 5052 -H32 in accordance with ASTM B 209. C. Sealant to be utilized at the base of the swirl chamber shall be 60 durometer extruded nitrile butadiene rubber (Buna N) and shall be provided to the concrete precaster for installation. D. Brick or masonry used to build the manhole frame to grade shall conform to ASTM C 32 or ASTM C 139 and shall be installed in conformance with all local requirements. E. Casting for manhole frames and covers shall be in accordance with ASTM A48, CL.30B and AASHTO M105. The manhole frame and cover shall be equivalent to Campbell Foundry Pattern #1009A or #1012D custom cast with the Vortechnics® logo and the words "Vortechs® Stormwater Treatment System ". F. A bitumen sealant in conformance with ASTM C 990 shall be utilized in the sealing of the joint between the swirl chamber and the vault at the long wall tangent points. The butyl material shall be 3/4 -inch thick by 3/4 -inch wide. Vortechs® System Technical Specification SECTION 02721 2 2.2 PERFORMANCE Each stormwater treatment system shall adhere to the following performance specifications at the design treatment capacities, as listed below: Table 2.2 Vortechs® Model ': Design `. Treatment : . Capactty... (cfs)L(I /s) Sediment St Storage (yd3) /(m3) 1000 0 - 1.6 (0 - 45) 0.7 (0.54) 2000 1.6 - 2.8 (45 -80) 1.2 (0.91) 3000 2.8 - 4.5 (80 -125) 1.8 (1.38) 4000 4.5 - 6.0 (125 -175) 2.4 (1.84) 5000 6.0 - 8.5 (175 -240) 3.2 (2.45) 7000 8.5 - 11.0 (240 -315) 4.0 (3.06) 9000 11.0 -14.0 (315 -400) 4.8 (3.67) 11000 14.0 -17.5 (400 -495) 5.6 (4.28) 16000 17.5 - 25.0 (495 -710) 7.1 (5.43) Each stormwater treatment system shall include a circular aluminum "swirl chamber" (or "grit chamber") with a tangential inlet to induce a swirling flow pattern that will accumulate and store settleable solids in a manner and a location that will prevent re- suspension of previously captured particulates. Each stormwater treatment system shall be of a hydraulic design that includes flow controls designed and certified by a professional engineer using accepted principles of fluid mechanics that raise the water surface inside the tank to a pre - determined level in order to prevent the re- entrainment of trapped floating contaminants. Each stormwater treatment system shall be capable of removing 80% of the net annual Total Suspended Solids (TSS) Toad based on a 50- micron particle size. Annual TSS removal efficiency models shall be based on documented removal efficiency performance from full scale laboratory tests. Annual TSS removal efficiency models shall only be considered valid if they are corroborated by independent third party field testing. Said field testing shall include influent and effluent composite samples from a minimum of ten storms at one location. Individual stormwater treatment systems shall have the Design Treatment Capacity listed in Table 2.2, and shall not re- suspend trapped sediments or re- entrain floating contaminants at flow rates up to and including the specified Design Treatment Capacity. Individual stormwater treatment systems shall have usable sediment storage capacity of not less than the corresponding volume listed in Table 2.2. The systems shall be designed such that the pump -out volume is less than 1/2 of the total system volume. The systems shall be designed to not allow surcharge of the upstream piping network during dry weather conditions. A water -lock feature shall be incorporated into the design of the stormwater treatment system to prevent the introduction of trapped oil and floatable contaminants to the downstream piping during routine maintenance and to ensure that no oil escapes the system during the ensuing rain event. Direct access shall be provided to the sediment and floatable contaminant storage chambers to facilitate maintenance. There shall be no appurtenances or restrictions within these chambers. Vortechs System Technical Specification SECTION 02721 3 Stormwater treatment systems shall be completely housed within one rectangular structure. 2.3 MANUFACTURER Each stormwater treatment system shall be of a type that has been installed and used successfully for a minimum of 5 years. The manufacturer of said system shall have been regularly engaged in the engineering design and production of systems for the physical treatment of stormwater runoff during the aforementioned period. Each stormwater treatment system shall be a Vortechs System as manufactured by Vortechnics , Inc., 200 Enterprise Drive, Scarborough, Maine 04074, phone: 207 - 885 -9830, fax: 207 - 885 -9825; and as protected under U.S. Patent #5,759,415. PART 3.00 EXECUTION 3.1 INSTALLATION A. Each Stormwater Treatment System shall be constructed according to the sizes shown on the Drawings and as specified herein. Install at elevations and locations shown on the Drawings or as otherwise directed by the Engineer. B. Place the precast base unit on a granular subbase of minimum thickness of six inches (152 mm) after compaction or of greater thickness and compaction if specified elsewhere. The granular subbase shall be checked for level prior to setting and the precast base section of the trap shall be checked for level at all four corners after it is set. If the slope from any corner to any other corner exceeds 0.5% the base section shall be removed and the granular subbase material re- leveled. C. Prior to setting subsequent sections place bitumen sealant in conformance with ASTM C 990 along the construction joint in the section that is already in place. D. After setting the base and wall or riser sections, prepare to install the swirl chamber. Place the 3/4 -inch (19 mm) thick by 3/4 -inch (19 mm) wide butyl mastic seal vertically on the outside of the swirl chamber starting one inch above the bottom of the swirl chamber and continuing to a height equal to the elevation of the bottom of the upper aperture of the swirl chamber. The butyl mastic seal should abut the downstream side of the pre - drilled mounting holes that attach the swirl chamber to the long walls of the concrete vault. Next, install the extruded Buna N seal on the bottom edge of the 180 degree downstream section of the swirl chamber by first applying a bead of Sikaflex -1 a polyurethane elastomeric sealant into the extruded slot then slide the seal onto the swirl chamber. The extruded seal should extend 3- inches (76 mm) upstream of the mounting holes, toward the inlet end of the vault. Set the swirl chamber into position and keep the seal approximately 1/2-inch (13 mm) above the floor of the concrete vault. Apply a continuous bead of Sikaflex -la sealant under the cupped bottom of the seal. Set the circular swirl chamber on the floor of the vault and anchor it by bolting the swirl chamber to the side walls of the concrete vault at the three (3) tangent points and at the inlet tab using HILTI brand stainless steel drop -in wedge anchors or equivalent 3/8 -inch (10 mm) diameter by 2 -3/4 inch (70 mm) minimum length at heights of approximately three inches (3 ") (76 mm) off the floor and at fifteen inch (15 ") (381 mm) intervals to approximately the same height of the butyl mastic sealant (at locations of pre - drilled holes in aluminum components). Apply a continuous bead of Sikaflex -la sealant to the intersection of the inside bottom edge of the extruded seal and the vault floor. E. If the oil baffle wall (Baffle A) and flow control wall (Baffle B) are not integrally cast -in to riser /wall sections then the Baffle wall panels shall be placed in the formed keyways or between Vortechs® System Technical Specification SECTION 02721 4 bolted -in -place angle flanges as provided by the manufacturer. Apply non - shrink grout or Sikaflex -1a sealant to each end of Baffle A and Baffle B at the upstream intersection with the side walls of the concrete vault. F. Prior to setting the precast roof section, bitumen sealant equal to ASTM C 990 shall be placed along the top of the oil baffle wall (Baffle A), using more than one layer of mastic if necessary, to a thickness at least 1 -inch (25 mm) greater than the nominal gap between the top of the baffle and the roof section. The nominal gap shall be determined either by field measurement or the shop drawings. Do not seal the top of Baffle B unless specified on the shop drawings to do so. After placement of the roof section has compressed the butyl mastic sealant in the gap over Baffle A, finish sealing the gap with an approved non - shrink grout on both sides of the gap using the butyl mastic as a backing material to which to apply the grout. If roof section is "clamshell" or "bathtub" halves, then finish sealing the ends of the Baffle walls by applying non - shrink grout or Sikaflex-la sealant to each end of Baffle A at the upstream intersection with the side walls of the concrete vault and to each end of Baffle B at the downstream intersection with the side walls of the concrete vault. G. After setting the precast roof section of the stormwater treatment system, set precast concrete manhole riser sections, to the height required to bring the cast iron manhole covers to grade, so that the sections are vertical and in true alignment with a 1h -inch (6 mm) maximum tolerance allowed. Backfill in a careful manner, bringing the fill up in 6- inch (152 mm) lifts on all sides. If leaks appear, clean the inside joints and caulk with lead wool to the satisfaction of the Engineer. Precast sections shall be set in a manner that will result in a watertight joint. In all instances, installation of Stormwater Treatment Systems shall conform to ASTM specification C 891 "Standard Practice for Installation of Underground Precast Utility Structures ". H. Holes made in the concrete sections for handling or other purposes shall be plugged with a nonshrink grout or by using grout in combination with concrete plugs. Where holes must be cut in the precast sections to accommodate pipes, do all cutting before setting the sections in place to prevent any subsequent jarring which may loosen the mortar joints. The Contractor shall make all pipe connections. Vortechs System Technical Specification SECTION 02721 5 DEPARTMENT OF ECOLOGY CORRESPONDENCE DATED MAY 15, 2007 •••• • •• a n, b 1 v n U 1 v 1 1 I STATE OF WASHINGTON DEPARTMENT OF ECOLOGY Northwest Regional Office • 3190 160th Avenue SE • Bellevue, Washington 98008 -5452 May 15, 2007 Ms. Joanna Spencer, PE City of Tukwila Public Works Department 6300 Southcenter Blvd. Tukwila, WA 98188 19” r. 4/7 • (425) 649 -7000 Subject: Comments for the Storm Drainage and Water Quality. improvements Permit Application #P W07 -037 as an independent action and review comments for Insurance Auto Auctions Inc at 8801 E Marginal Way South, Tukwila, WA Dear Ms Joanna Spencer: Ecology has reviewed the proposed Storm Drainage and Water Quality Improvements #PW07- 037 Permit Application for Insurance Auto Auctions Inc located at 8801 E Marginal Way South and a-portion of the adjacent property to the south at 9229 E Marginal Way South, Tukwila, Washington. Below are Ecology's comments for the proposed improvements. Note; that this work may be conducted as an independent action under the Model Toxics Control with prior notice and agreement from Ecology. Her are the continents for the drainage report and permit application for Insurance Auto Auctions Inc (IAAI) prepared by Barghausen Consulting Engineers Inc and dated March:30, 2007: 1. Ecology agrees that IAAI should move forward with the proposed water quality improvements. The storm water data collected to date are very limited and Ecology will work closely with IAAI for collecting additional data If the data collected in the future show that the water quality at the.outfalls do not meet Ecology's effluent limits and may potentially impact Duwamish Waterway sediment, then Ecology will require additional best management practices (BMPs). 2. The permit application will be updated to comply with the Stormwater Management Manual for Western Washington dated February 2005 replacing the King County 1998 guidance. All calculations for flow and capacity will be footnoted and attached to the report or figures. 3. Section 5, page 6 of the Drainage Report: It is Ecology's understanding that any storm over a 2 -year peak flow will by pass the Vortech system, and there is do backwater into the existing storm water system as stated. Please revise this paragraph to reflect the design. may. p. ivui IU:IJAW Northwest Kegional Office No. 1559 P. 5/5 4. Section 2.1, page 2 and Section 3, page 4. I believe there is an above ground drainage pipe from the Boeing Thompson/Boeing Isaacson property at the north that discharges onto the 8801 site above ground. This drainage pipe is Iocated about midway between the North Outfall and the northwest corner of the former man ufacturing building. Will this discharge be added to the north outfall? 5. Monitoring needs to be conducted at the North Outfall oil -water skimmer to confirm water quality conditions prior to discharge to the waterway and to confirm that the skimmer meets discharge limits. Parameters of concern are oil and grease. These are Ecology's comments to date, and we look forward to working with you with the revised application. If you have questions or would like to discuss these points please contact Ecology and for engineering questions please contact Sunny Becker at 425 -649 -7187 and site management issues please contact me at 425 -649 -7249. Sincerely, Maura S. O'Brien, PG/HG #869 Professional Geologist/Hydrogeologist and Site Manager Toxics Cleanup Program cc Steve Tibble, Insurance Auto Auctions Inc Jay Grubb, Barghausen Consulting Engineers Inc Mark Barbieri, Washington Holdings LLC Eric Buckler, Paccar Inc Kris Flint, EPA 1;MAURA SAtAMAH O'BRIEN' may. I/. LvvI IV. ILAIYI Irurtnwest regional vliice No. 177V r. Z/7 STATE OF WASHINGTON DEPARTMENT OF ECOLOGY Northwest Regional Office • 3190 160th Avenue SE • Bellevue, Washington 98008 -5452 • (425) 649 -7000 May 15, 2007 Mr Steven Tibble Insurance Auto Auctions 850 East.Algonquin Road Schamberg, IL 60173 Subject: Storm Water and Water Quality Improvements for IAA! at 8801 E Marginal Way South Site, former Paccar Kenworth Truck, Tukwila, WA Dear Steve Tibble: The proposed Storm Drainage and Water Quality Improvements at 8801 site may take place as an independent action under the Model Toxics Control Act, our state cleanup regulations. WAC 173- 340 - 515(2) allows independent remedial actions to take place, even on sites where consent decree negotiations have Been initiated, as long as they do not foreclose or preempt further remedial actions and Ecology has prior notice of the independent action and does not object. The water quality work here is even a bit removed from what the WAC provision contemplates because it is not the PLP doing independent work, but a lessee on the property. That makes it very important that we have documentation showing the PLP knows about the independent work and they are in agreement with this work moving forward. As for public coinment, if the work is being done pursuant to a Shoreline Management Act permit, then that permit has public comment processes and opportunities. As long as those are moving forward as they would for any other Shoreline Management Act permit, I have no - concerns on the public comment side of things. These water quality (WQ) improvements will require trenching to install new storm drain piping and localized excavation to install a Vortech pretreatment system before discharge at the two outfalls into the Lower Duwamish. Some of the trenching and excavation is estimated to or may penetrate into locations where there is contamination from past site activities. Note all work would be conducted outside with open air conditions. Paccar has offered to prepare an overlay to show known sample results and concentration of chemicals of concern at the proposed trenching and excavation locations. Paccar estimates that most of the trenching and excavation will occur where there is no or there is limited contamination. Ecology recommends a Compliance Monitoring Plan for side wall and base of any trenching and excavations in order to confirm surrounding conditions and to safeguard the new improvements. May. 1h. ZUU! 10:11AM Northwest Regional Office No. 1559 P. 3/5 Note, City of Tukwila has reported that this proposed WQ improvement work was approved under SEPA in 2004. No further SLPA comment process is planned at this time. This work is estimated to be implemented this dry season between July 1 and October I, 2007. Thank you and I look forward to working with you to complete these improvements. If you need more information, please contact me at the Northwest Reb onal Office at 425 -649 -7249. Sincerely, Maura S 0' : rien, PG/HG #869 Professional GeologistfHydrogeologist and Site Manager Toxics Cleanup Program Cc Mark Barbieri, Washington Holdings LLC Eric Buckler, Paccar Inc Joanna Spencer, City of Tukwila Kris Flint, EPA Jay Grubb, Barghausen Consulting Engineers Inc HYDRAULIC CALCULATIONS VI if-I `3) Appended on: 09:00:42 Monday, March 19, 2007 A Event Summary Event Peak Q (cfs)] Peak T (hrs.)11Hyd Vol (acft)1[Area (acylMethodilRaintypel 4.4000 :I SBUH 1 ' ■ TYPE1A i , other ; : J 1.5912 i 7.83 : 0.5159 ! i 2 year 2.0486 ! 7.83 L .4.40 ac __ - --- 93.00 0.6526 : 4.4000 ! SBUH I TYPE1A 5 year ! 3.2063 , ' 7.83 1.26 min 1.0031 I 4.4000 ! SBUH : TYPE1AI 10 year : 3.7860 • 7.83 1 810 L1 ___ _ ... ! .. _ 4.4000 : !I 4.4000 :i 4.4000 1 SBUH i SBUH : .1 SBUH I TYPElAi TYPE1A TYPE1A1 25 year i . 4.0753 5.5264 il 7.83 7.83 i 1.2703 1.7236 • .., , ! 100 yead Record Id: A [Design Method IL SBUH Rainfall type , TYPE I A _ LPervious TC Cale IHyd Intv TT . 10.00 min I Peaking Factor A straction Coeff CN TC : , , i !I • il 484.00 t 0.00 ac 1 ' ., 4 • I i A L .4.40 ac __ - --- 93.00 .1 jipciA 1DC 1IDC frervious Area ---._.-----...- ....._ -... Pervious CN 1 0.00 min _.; i 'Pervious TC ii 1.26 min II. Pervious CN Cale I it_ Description 'L SubArea Sub cn I Industrial II ti 4.40 ac 93.00 11 , Pervious Composited CN (AMC 2) 93.00 i • ________. ____________________________-_________ __ ______; -.4 -------- ------. -- _ LPervious TC Cale Type Description i Length Islo e fi Coeff LMisc i TT . 1Sheet__ ASmoothSurfaces.: 0.011 4200.00 ft 1100%0.00 ini 0.00 min' Ilchannel (interm) :IConcrete pipe (n=0.012) 1[320.00 ft111.00%110.01201 111:26 min! li Pervious TC 111.26 mini] I - -- i . . Licensed to: Barghausen Engineers 1.8239 acft Appended on: 09:01:48 Monday, March 19, 2007 B-1 Event Summary Event ilPeak q(cfs)i Peak T(hrs)ilyydVol(acft) Area (ac) i Method] Raintype, [other i 0.628.7 1 8.00 0.2110 1.8000 ilsBUHITYPE1A I 2 year ii II 1 i 0.8032 ._ i 8.00 ! 0.2670 [ 1.8000 ILSBUH ....., 1.8000 1 I, SBUH 1 TYPE1A1 TYPE1A1 h year -1 i - - ; 1.2504 1Smooth Surfaces.: 0.011 :[150.00_fti 11 7.83 1 0.4103 1 1[10 yeari 1.4779 :7.83_____ .._. 0.4831_1 1.8000 i SBUH TYPEIAI 125 year 1 1.5916 7.83 : 0.5196 ; 1.8000 1 II 1.8000 ji SBUH IITYPEIA! .1 '1100 year I 2.1617 i 7.83 : 0.7050 ' SBUH i[TYPEIA. Record Id: B-1 Design Method SBUH Hyd Intv 10.00 min 'IPervious Area 1.80 ac Rainfall type TYPE I A 1 Peaking Factor ' 484.00 Abstraction Coeff 0.20 DCIA 0.00 ac 1Pervious CN j 93.00 i DC CN 0.00 3 99 min ; DC TC __L 0.00 min IIPerv-ious i C- I I 1---- ------ ervious CN Cale ; I I P J 1 I Description 1, SubArea Sub cn i ,; Industrial 1 I ; 1.80 ac L 93.00 Pervious Composited CN (AMC 2) 93.00 Pervious TC Cale Type I Description I Length j SlopelCoeff !I I Misc i TT JI 1Smooth Surfaces.: 0.011 :[150.00_fti 11 1.00%10.011012.50 in 2.50 min i ilsheet 11 Channel (interm) !IConcrete pipe (n=0.012) '1380.00 fti11.00%10.0120.11 ___I , 1.49 min i , I Pervious TC j 3.99 min! Licensed to: Barghausen Engineers Appended on: 09:02:16 Monday, March 19, 2007 B-2 Event Summary II Event lPeak Q (cis)! Peak T (hrs)IIHyd Vol (acft)Ikrea (ac)IMethodilRaintype It other 0.4692 i 7.83 i . 0.1524 1 1.3000 SBUH IITYPE1Ai II 2 year 0.6040 i 7.83 1 0.1928 i 1.3000 I SBUH 1 TYPEIAj il 5 year I 0.9450 783 0.2964 I 1.3000___: SBUEI I TYPE1A1 l iLT year 1.1157 ' 7.83 1 0.3489 1 1.3000 if SBUH j TYPE 1j 1 25 year I 1.2010 . 7.83 i 0.3753 i 1.3000 11 SBUHJITYPE1A . i .. 4.100 yeari___ 1.6284 t 7.83 0.5092 0.3000 _1SBUH ITYPE1A1 Record Id: B-2 Design Method SBUH ' Rainfall type TYPEIA 111yd Intv 10.00 min Peaking Factor _.., I 484.00 I II , • Abstraction Coeff IL 0.20 1 iipervious Area I if 03.1 I .., Cac ! D IA 1 0.00 ac Ilpervious CN 93.00 j DC CN i 1 0.00 Pervious TC if 1.10 min IIDC TC I 0.00 min __J IL ------ - - ---- ____ ------- ---- --- . - Pervious CN Cale LDescription SubArea II Sub cn _IL Industrial ii ii 1.30 ac 1 93.00 ii L Pervious Composited CN (AMC 2) 1 1 93.00 ILPervious TC Cale L Type Descriplion II _....._J gth Len I Slope I Coeff Misc I TT Sheet Ismooth Surfaces.: 0.011 11150.00 ft11.00% 0.0110 10.00 in 0.00 mini lIchannel (interm) liconcrete pipe (n=0.012) 11280.00 ft111100%1 ill.10 mini. 1 Pervious TC 13.60 mini' Licensed to: Barghausen Engineers Appended on: 09:02:49 Monday, March 19, 2007 13-3 Event Summary Event , Peak Q (cfs) Peak T (hrs)Illyd Vol (aeft)11Area (ac)IlmethodIIRaintype Factor : _other 2.9403 ; 8 00 0.20 0.00 ac 1.0782 i 9.2000 1 SBUH TYPE1A; 2 year ' 3.7750 8.00 0.00 min 1.3642 ' 9.2000 : SBUH TYPEIA 5 year ' 5.8846 8.00 ' 2.0967 9.2000 : SBUH ' TYPE1A 10 year 6.9398 8.00 ' 2.4685 ; 9.2000i SBUH tTYPE1A .. it _____ Pervious TC 1111.11 25 year 7.4664 8.00 . 2.6553 , 9.2000 ji SBUH i TYPElAi [100 year; 10.1073 ; 8.00 ;I 3.6028 9.2000 LSBT.J.--11 ITYPE1A Record Id: B-3 . Design Method „, I I - , SBUH IEllainfall type , TYPE1A i 484.00 I Hyd Into 1 ,, 10.00 min i ilPeaking Factor 1 i ilAbstraction Coeff 0.20 0.00 ac 1Pervious Area I 9.20 ac IIDCIA Pervious CN 93.00 I _ DC CN 0.00 I Pervious TC 1 11.11 min IIDC TC 0.00 min 11 Pervious CN Cale 11 li . , Description II SubArea I Sub en Industrial I 9.20 ac ; , 93.00 1 it Pervious Composited CN (AMC 2) ji. - 93.00 Pervious TC Cale . : L. _ Type : : Description j Length i Slope il Coeff il Misc TT !Sheet liSmooth Surfaces.: 0.011.11180.00 ft 11.00%10.0142.50 ini[2.89 min Channel (interm)Concrete ii pipe (n=0.0121111480.00 ft110.50%1$3.01201 1[8.21 min .. it _____ Pervious TC 1111.11 mini Licensed to: Barghausen Engineers rage ' 01 1 1 COMBINEHYD To [1) AS 12 year] [B -1] [B -2] [B -3] LSTENDHvdro2raah ID: 1 Area 112.3000 ac ( Hyd Int 10.00 mini Base Flow [Peak flow) 5.1422 cfs Peak Time 8.00 hrs 1 Hyd Vol 11.8239 acft( Hydrograph or Rating Curve Chart ti .Ci'S,44. A` '. &wel-iA4_` '^_H ui1t".Awme,m a ..' .,_ wi . .. . eft,' +'a `Sta+� >'x�. `rw ;[4?'z S:: N'�a.> - ;E f `v' ....`. • / 2 year Hydrograph Plot 5J 4 U3 O 2, g ,' V •; ii Y. Q-74c:: c N aii_uto;....:.:a�..?•. i s . ",;1,v..•s�f`}Tf.t,wd:;<�` ....1. `:.r :.`: tf ^ op ^ W 4) ^ W (f) ^ (f) ^ 2 N ^ m 4i ^ O7 c ^ W (a 1` 2 ^ Co' to ^ to Q ^ (') () Q 4) 4) (D 1--: 1--: m O) O) O r- N f*) (r) V 4) 47 (.O 1- r- ai O) O) N N N N N N N N Time in Hours Hydrograph ID: 1 Area 112.3000 ac ( Hyd Int 110.00 min Base Flow( Peak flow( 5.1422 cfs Peak Time 8.00 hrs Hyd Vol (1.8239 acft( Time (hr) (Flow (cfs)1 Time (hr) Flow (cfs) Time (hr)I(Flow (cfs) 2.50 1 0.0106 1 10.33 1 1.3190 (( 17.83 1 0.8024 1 file: //P:\ 11000s\ 11419 \engineering\ 1141 9.html 3/20/2007 file: //P:\ 11000s \11419 \engineering\ 11419.html 3/20/2007 Basin A WWHM model 4.4 acres Re Echt Viet? Hep Tips - > '® 171111un Model — Choose Scenario reiviCCOI Choose Analysis 17 Run HSPF r Duration AT ysis Graph .L `Tables Water Quality Analysis Calculate Design Volume and Flow Rates On -Line BMP 24 hour Volume (acre feet) Hourly Flory Rate (cfs) 15 Minute Flow Rate 0.5250 0.6209 0.7016 Off -Line BMP Hourly Flom Rate (ds) 15 Minute Flow rate 0.3563 4326 The target pond volume and flow rate for water quality are based on capturing 91 percent of the total simulated runoff volume. Yearly Peaks 1 Flow Frequency Durations Water Quality u, vol.. -0, 1 VP Human& noire fl r•rocc D C /14. /'NVI7 • C,1 DM Azzc x 4gba,t3 prayA, zoziate, FT-5 Basin combined B- 1,B -2, B -3 WWHM model 12.3 acres gWWFIN12.0,, A. File E& View -Ina" Tips -> J' un Model – Choose Scenario— l; Deaccedtkniiiis d 1" I l`!$ i Choose Analysis F Run HSPF r Duration Analysis Run Analysis 1 • Graph•: rr Tables 1 I* Water Quality Analysis Calculate Design o �!lume and Flow Hates_ _, On-Line BMP Off -Line BMP 24 hour Volume 1.4677 (acre feet) Hourly Flow Rate (cfs) 1.7358 Hourly Flow Rate (cfs) 15 Minute Flow rate 0.9960 15 Minute Flow Rate 1.9614 1.1255 The target pond volume and flow rate for water quality are based on capturing 91 percent of the total simulated runoff volume. Yearly Peaks I Flow Fre uency I Durations I j Water Quality I you, 10 4‘07 (43 Frke-) ��, �� Fr5 WESTERN WASHINGTON HYDROLOGY MODEL V2 PROJECT REPORT Project Name: Site Address: City Report Date : Gage Data Start Data End Precip Scale: 11419 -doe 8801 East Marginal Way Tukwila 5/16/2007 Seatac 1948 1998 1.00 PREDEVELOPED LAND USE Basin Flows To GroundWater: Land Use IMPERVIOUS: Basin 2 Point of Compliance No Acres 12.3 DEVELOPED LAND USE Basin Flows To • GroundWater: No Basin 2 Pond 1 Land Use Acres IMPERVIOUS: 12.3 RCHRES (POND) INFORMATION Pond Name: Pond 1 Pond Type: Trapezoidal Pond Pond Flows to : Point of Compliance Pond Rain / Evap is not activated. Dimensions Depth: Oft. Bottom Length: Oft. Bottom Width : Oft. Side slope 1: 0 To 1 Side slope 2: 0 To 1 Side slope 3: 0 To 1 Side slope 4: 0 To 1 Volume at Riser Head: Discharge Structure Riser Height: 0 ft. Riser Diameter: 0 in. 0.000 acre -ft. Pond Hydraulic Table stage(ft) Area(acr) Volwne(acr -ft) Dschrg(cfs) Infilt(cfs) 0.000 0.000 0.000 0.000 0.000 ANALYSIS RESULTS Flow Frequency Return Periods for Predeveloped ). S 0 (Sc:m4L 0G� PsCe• D eoqu� Return Period Flow(cfs) 2 year 3.071936 5 year 3.735006 10 year 4.163571 25 year 4.698282 50 year 5.09379 100 year 5.488207 Flow Frequency Return Periods for Developed Unmitigated Return Period Flow(cfs) 2 year 1.098904 5 year '1.3361 10 year 1.489408 25 year 1.680687 50 year 1.822169 100 year 1.963262 Flow Frequency Return Periods for Developed Mitigated Return Period Flow(cfs) 2 year 0 5 year 0 10 year 0 25 year 0 50 year 0 100 year 0 Yearly Peaks for Predeveloped and Developed- Mitigated Year Predeveloped Developed 1949 3.140 0.000 1950 4.474 0.000 1951 3.029 0.000 1952 2.744 0.000 1953 2.466 0.000 1954 2.923 0.000 1955 3.135 0.000 1956 3.025 0.000 1957 3.420 0.000 1958 3.113 0.000 1959 2.390 0.000 1960 2.965 0.000 1961 2.601 0.000 1962 2.689 0.000 1963 2.546 0.000 1964 3.022 0.000 1965 2.711 0.000 1966 2.684 0.000 1967 4.043 0.000 1968 4.574 0.000 1969 2.444 0.000 1970 2.688 0.000 1971 2.621 0.000 1972 3.725 0.000 1973 2.448 0.000 1974 2.687 0.000 1975 3.531 0.000 1976 2.431 0.000 1977 3.144 0.000 1978 4.074 0.000 1979 4.026 0.000 1980 3.312 0.000 1981 3.693 0.000 1982 5.028 0.000 1983 3.730 0.000 1984 2.791 0.000 1985 2.668 0.000 1986 3.225 0.000 1987 4.659 0.000 1988 2.242 0.000 1989 2.815 0.000 1990 5.020 0.000 1991 4.716 0.000 1992 2.779 0.000 1993 1.925 0.000 1994 2.303 0.000 1995 2.868 0.000 1996 3.301 0.000 1997 3.209 0.000 1998 3.509 0.000 Ranked Yearly Peaks for Predeveloped and Developed- Mitigated Rank Predeveloped Developed 1 5.0203 0.0000 2 4.7162 0.0000 3 4.6586 0.0000 4 4.5737 0.0000 5 4.4739 0.0000 6 4.0740 0.0000 7 4.0430 0.0000 8 4.0263 0.0000 9 3.7300 0.0000 10 3.7249 0.0000 11 3.6931 0.0000 12 3.5314 0.0000 13 3.5094 0.0000 14 3.4204 0.0000 15 3.3124 0.0000 16 3.3010 0.0000 17 3.2252 0.0000 18 3.2090 0.0000 19 3.1440 0.0000 20 3.1402 0.0000 21 3.1348 0.0000 22 3.1125 0.0000 23 3.0287 0.0000 24 3.0247 0.0000 25 3.0222 0.0000 26 2.9652 0.0000 27 2.9235 0.0000 28 2.8677 0.0000 29 2.8148 0.0000 30 2.7911 0.0000 31 2.7792 0.0000 32 2.7444 0.0000 33 2.7112 0.0000 34 2.6893 0.0000 35 2.6876 0.0000 36 2.6865 0.0000 37 2.6843 0.0000 38 2.6680 0.0000 39 2.6215 0.0000 40 2.6005 0.0000 41 2.5461 0.0000 42 2.4662 0.0000 43 2.4482 0.0000 44 2.4437 0.0000 45 2.4307 0.0000 46 2.3901 0.0000 47 2.3034 0.0000 48 2.2424 0.0000 49 1.9245 0.0000 1/2 2 year to 50 year Flow(CFS) Predev Final Percentage Pass /Fail 1.5360 0 0 .0 Pass 1.5719 0 0 .0 Pass 1.6078 0 0 .0 Pass 1.6438 0 0 .0 Pass 1.6797 0 0 .0 Pass 1.7157 0 0 .0 Pass 1.7516 0 0 .0 Pass 1.7875 0 0 .0 Pass 1.8235 0 0 .0 Pass 1.8594 0 0 .0 Pass 1.8953 0 0 .0 Pass 1.9313 0 0 .0 Pass 1.9672 0 0 .0 Pass 2.0032 0 0 .0 Pass 2.0391 0 0 .0 Pass 2.0750 0 0 .0 Pass 2.1110 0 0 .0 Pass 2.1469 0 0 .0 Pass 2.1828 0 0 .0 Pass 2.2188 0 0 .0 Pass 2.2547 0 0 .0 Pass 2.2907 0 0 .0 Pass 2.3266 0 0 .0 Pass 2.3625 0 0 .0 Pass 2.3985 0 0 .0 Pass 2.4344 0 0 .0 Pass 2.4703 0 0 .0 Pass 2.5063 0 0 .0 Pass 2.5422 0 0 .0 Pass 2.5782 0 0 .0 Pass 2.6141 0 0 .0 Pass 2.6500 0 0 .0 Pass 2.6860 0 0 .0 Pass 2.7219 0 0 .0 Pass 2.7578 0 0 .0 Pass 2.7938 0 0 .0 Pass 2.8297 0 0 .0 Pass 2.8657 0 0 .0 Pass 2.9016 0 0 .0 Pass 2.9375 0 0 .0 Pass 2.9735 0 0 .0 Pass 3.0094 0 0 .0 Pass 3.0453 0 0 .0 Pass 3.0813 0 0 .0 Pass 3.1172 0 0 .0 Pass 3.1532 0 0 .0 Pass 3.1891 0 0 .0 Pass 3.2250 0 0 .0 Pass 3.2610 0 0 .0 Pass 3.2969 0 0 .0 Pass 3.3328 0 0 .0 Pass 3.3688 0 0 .0 Pass 3.4047 0 0 .0 Pass 3.4407 0 0 .0 Pass 3.4766 0 0 .0 Pass 3.5125 0 0 .0 Pass 3.5485 0 0 .0 Pass 3.5844 0 0 .0 Pass 3.6203 0 0 .0 Pass 3.6563 0 0 .0 Pass 3.6922 0 0 .0 Pass 3.7282 0 0 .0 Pass 3.7641 0 0 .0 Pass 3.8000 0 0 .0 Pass 3.8360 0 0 .0 Pass 3.8719 0 0 .0 Pass 3.9078 0 0 .0 Pass 3.9438 0 0 '.0 Pass 3.9797 0 0 .0 Pass 4.0157 0 0 .0 Pass 4.0516 0 0 .0 Pass 4.0875 0 0 .0 Pass 4.1235 0 0 .0 Pass 4.1594 0 0 .0 Pass 4.1954 0 0 .0 Pass 4.2313 0 0 .0 Pass 4.2672 0 0 .0 Pass 4.3032 0 0 .0 Pass 4.3391 0 0 .0 Pass 4.3750 0 0 .0 Pass 4.4110 0 0 .0 Pass 4.4469 0 0 .0 Pass 4.4829 0 0 .0 Pass 4.5188 0 0 .0 Pass 4.5547 0 0 .0 Pass 4.5907 0 0 .0 Pass 4.6266 0 0 .0 Pass 4.6625 0 0 .0 Pass 4.6985 0 0 .0 Pass 4.7344 0 0 .0 Pass 4.7704 0 0 .0 Pass 4.8063 0 0 .0 Pass 4.8422 0 0 .0 Pass 4.8782 0 0 .0 Pass 4.9141 0 0 .0 Pass 4.9500 0 0 .0 Pass 4.9860 0 0 .0 Pass 5.0219 0 0 .0 Pass 5.0579 0 0 .0 Pass 5.0938 0 0 .0 Pass Water Quality AMP Flow and Volume. On -line facility volume: 1.4677 acre -feet On -line facility target flow: 1.7358 cfs. Adjusted for 15 min: 1.9614 cfs. Off -line facility target flow: 0.996 cfs. Adjusted for 15 min: 1.1255 cfs. program and accompanying documentation as provided 'as -is' without warranty of any kind. The entire risk regardin< performance and results of this program is assumed by the user. AQUA TERRA Consultants and the Washington State Department of Ecology disclaims all warranties, either expressed or implied, including but not limited to implied warranties of program and accompanying documentation. In no event shall AQUA TERRA Consultants and /or the Washing( State Department of Ecology be liable for any damages whatsoever (including without limitation to damages for loss business profits, loss of business information, business interruption, and the like) arising out of the user of, o: inability to use this program even if AQUA TERRA Consultants or the Washington State Department of Ecology has beer advised of the possibility of such damages Yearly Peaks for Predeveloped Flow Frequency Chart Yearly Peaks for developed W/O Pond Duration Graph WESTERN WASHINGTON HYDROLOGY MODEL V2 PROJECT REPORT Project Name: Site Address: City Report Date : Gage Data Start . Data End Precip Scale: 11419 - doe - basinl 8801 East Marginal Way Tukwila 5/17/2007 Seatac 1948 1998 1.00 PREDEVELOPED Basin Flows To GroundWater: Land Use IMPERVIOUS: LAND USE Basin 1 Point of Compliance No Acres 4.4 DEVELOPED LAND USE Basin Flows To • GroundWater: Land Use IMPERVIOUS: Basin 1 Point of Compliance No Acres 4.4 RCHRES (POND) INFORMATION Flow Frequency Return Period 2 year 5 year 10 year 25 year 50 year 100 year Flow Frequency Return Period 2 year 5 year 10 year 25 year 50 year 100 year Flow Frequency '.eturn Period C year 5 year 10 year 25 year 50 year L00 year ANALYSIS RESULTS Return Periods for Predeveloped Flow(cfs) 1.098904 1.3361 1.489408 1.680687 1.822169 1.963262 Return Periods for Developed Unmitigated Flow(cfs) 1.098904 1.3361 1.489408 1.680687 1.822169 1.963262 Return Periods for Developed Mitigated Flow(cfs) 0 0 0 0 0 0 4,4 AS R-e lf.�ifN AeAX c-re!r Yearly Peaks for Predeveloped and Developed - Mitigated Year Predeveloped Developed 1949 1.123 0.000 1950 1.600 0.000 1951 1.083 0.000 1952 0.982 0.000 1953 0.882 0.000 1954 1.046 0.000 1955 1.121 0.000 1956 1.082 0.000 1957 1.224 0.000 1958 1.113 0.000 1959 0.855 0.000 1960 1.061 0.000 1961 0.930 0.000 1962 0.962 0.000 1963 0.911 0.000 1964 1.081 0.000 1965 0.970 0.000 1966 0.960 0.000 1967 1.446 0.000 1968 1.636 0.000 1969 0.874 0.000 1970 0.961 0.000 1971 0.938 0.000 1972 1.332 0.000 1973 0.876 0.000 1974 0.961 0.000 1975 1.263 0.000 1976 0.870 0.000 1977 1.125 0.000 1978 1.457 0.000 1979 1.440 0.000 1980 1.185 0.000 1981 1.321 0.000 1982 1.799 0.000 1983 1.334 0.000 1984 0.998 0.000 1985 0.954 0.000 1986 1.154 0.000 1987 1.666 0.000 1988 0.802 0.000 1989 1.007 0.000 1990 1.796 0.000 1991 1.687 0.000 1992 0.994 0.000 1993 0.688 0.000 1994 0.824 0.000 1995 1.026 0.000 1996 1.181 0.000 1997 1.148 0.000 1998 1.255 0.000 Ranked Yearly Peaks for Predeveloped and Developed- Mitigated Rank Predeveloped Developed 1 1.7959 0.0000 2 1.6871 0.0000 3 1.6665 0.0000 4 1.6361 0.0000 5 1.6004 0.0000 6 1.4574 0.0000 7 1.4463 0.0000 8 1.4403 0.0000 9 1.3343 0.0000 0 1.3325 0.0000 11 1.3211 0.0000 12 1.2633 0.0000 13 1.2554 0.0000 14 1.2236 0.0000 15 1.1849 0.0000 16 1.1808 0.0000 17 1.1537 18 1.1480 19 1.1247 20 1.1233 21 1.1214 22 1.1134 23 1.0834 24 1.0820 25 1.0811 26 1.0607 27 1.0458 28 1.0258 29 1.0069 30 0.9984 31 0.9942 32 0.9817 33 0.9699 34 0.9620 35 0.9614 36 0.9610 37 0.9603 38 0.9544 39 0.9378 40 0.9303 41 0.9108 42 0.8822 43 0.8758 44 0.8742 45 0.8695 46 0.8550 47 0.8240 48 0.8021 49 0.6885 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0:0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 1/2 2 year to 50 year Flow(CFS) Predev Final Percentage Pass /Fail 0.5495 0 0 .0 Pass 0.5623 0 0 .0 Pass 0.5752 0 0 .0 Pass 0.5880 0 0 .0 Pass 0.6009 0 0 .0 Pass 0.6137 0 0 .0 Pass 0.6266 0 0 .0 Pass 0.6394 0 0 .0 Pass 0.6523 0 0 .0 Pass 0.6652 0 0 .0 Pass 0.6780 0 0 .0 Pass 0.6909 0 0 .0 Pass 0.7037 0 0 .0 Pass 0.7166 0 0 .0 Pass 0.7294 0 0 .0 Pass 0.7423 0 0 .0 Pass 0.7551 0 0 .0 Pass 0.7680 0 0 .0 Pass 0.7809 0 0 .0 Pass 0.7937 0 0 .0 Pass 0.8066 0 0 .0 Pass 0.8194 0 0 .0 Pass 0.8323 0 0 .0 Pass 0.8451 0 0 .0 Pass 0.8580 0 0 .0 Pass 0.8708 0 0 .0 Pass 0.8837 0 0 .0 Pass 0.8966 0 0 .0 Pass 0.9094 0 0 .0 Pass 0.9223 0 0 .0 Pass .9351 0 0 .0 Pass ,.9480 0 0 .0 Pass 0.9608 0 0 .0 Pass 0.9737 0 0 .0 Pass 0.9865 0 0 .0 Pass 0.9994 0 0 .0 Pass 1.0123 0 0 .0 Pass 1.0251 0 0 .0 Pass Water Quality MP Flow and Volume. On -line facility volume: 0.525 acre -feet On -line facility target flow: 0.6209 cfs. Adjusted for 15 min: 0.7016 cfs. Off -line facility target flow: 0.3563 cfs. Adjusted for 15 min: 0.4026 cfs. program and accompanying documentation as provided 'as -is' without warranty of any kind. The entire risk regarding the performance and results of this program is assumed by the user. AQUA TERRA Consultants and the Washington State Departmer Ecology disclaims all warranties, either expressed or implied, including but not limited to implied warranties of program accompanying documentation. In no event shall AQUA TERRA Consultants and /or the Washington State Department of Ecology bE liable for any damages whatsoever (including without limitation to damages for loss of business profits, loss of business information, business interruption, and the like) arising out of the user of, or inability to use this program even if AQC TERRA Consultants or the Washington State Department of Ecology has been advised of the possibility of such damages. Ori Anal sis Basin A Given d Q = c[(pi)d ^2/4][(2gh d= C. h Q= 8.7 / . 0.7,25 FT. 2 32.2 Ft/SecA2 1 FT. t(2] \. Orifice diamet units'of feet used in equation as shown Sharp edged orfice constrant gravitation constant head on orfice N, AN 2-c- c. 2 Z- c- cam• (CO - l i,,,e1) I , 2 t.c v,ci . 2.05 CFS Orifice Analysis Basin B1 Given d Q = c[(pi)d ^2/4][(2gh) ^1/2] d = 7.7 IN. = 0.6417 FT. c = 0.62 g = 32.2 Ft/SecA2 h = 0.25 FT. 11419 Orfice diameter units of feet used in equation as shown Sharp edged orfice constrant gravitation constant head on orfice Orifice Analysis Basin B2 Given d Q = c[(pi)d ^2/4][(2gh) ^1/2] d = 5.2 IN. = 0.4333 FT. c = 0.62 g = 32.2 Ft/SecA2 h = 0.67 FT. Q = 0.60 CFS Orrice diameter units of feet used in equation as shown Sharp edged orfice constrant gravitation constant head on orrice Orifice Analysis Basin B 3 Given d 0 = c[(pi)d ^2/4][(2gh) ^1/2] hydrograph 1 q 2 yr 5.14 cfs .. d = 12.44 IN. Orfice diameter = 1.0367 FT. units of feet used in equation as shown c = 0.62 Sharp edged orfice constrant g = 32.2 Ft/SecA2 gravitation constant h = 1.5 FT. head on orfice Q = 5.14 CFS `LC, Given d Q = c[(pi)d^2/4][(2gh)^1 /2J d = 12.44 IN. = 1.0367 FT. c = 0.62 g = 32.2 Ft/Sec ^2 h = 2.06 FT. WEIR TOTAL ORIFICE OVEFLOW HEAD 1.5 - 0.56 - 2.06 , Q = 6.03 CFS _ MAX Q VIA WATER QUALITY DURING 100 YR STORM 0 5 U 0 0 1- w w cr a a ! O T7 N W LL Z m Z c W t W Z .6 P-o•E O !A O Q) Z - W 072.g. Z o E WW <0 Yn =�a Q c a m 7 H m Z c 0 ZM as z ca U N W m a =- W N O v o O6(:520 Oo ,X LL EW CO o� N O IC~ W Z EQO O N N O[ cel .- 0 o O 7 I- Q m0 C) u II 2u- 15ZO W LL R LL ZF 0 0 W I- LL Ow z0 0 U w a oo 0 l' m (0 Q tel (O CO (O CO CO CO aD (56006 COVC(n (n V (D n fD .- N N N N •` ct 0 N )-}}00 N� C'4u 11 11 .a ,r) 0) 0) o II II O 511 (0 (O 1 II II 0 I iI 11 II N (ON CO N N ‘-NN CO 0 0 (0 N N N N 00 CO r CO 0) O ('1 VI 0 r 0 666 (7 a '0 0) ,00 (OO) r 0) O N (0 CO 0) aO 000 O O 6 11 U II ° OO v o 0 < U O o Odd 1 <11 2 11 c0 a0 C O M 0. 11 11 N N ogmm '166 u u C 11 tl 11 11 M 0 . O C O N N N N N 0 0 0 0 0 0 0 0 0 O P) 0) (O n (D n CO 0 CI w y CI. ac 8L6 .a; U O 11 CO N 11 11 N 11 11 11 Q Q C II i grc4 a u m c Q 0 y II m m w m o coax O 11 U o coo_15 a 1. I-1100 oo W d ._ .d O Y L Q c `ggm m- o « 11 •W vZ� o c� m A m m O i °m mm m U� cDJ3 n: u r 30 <.01-E6_,0 I' 1 i C� 000 t■ N N to 0) 0 0 0 0 0 N N N N N 66 666 0 csri - 3AtOTORY SEWER SYSEM M > w STORM DRAINAGE P)P!1PIF w.9 AFL' «T i • ,• ni iti'1t�1d i.A 'r- O 421fINSTR* Fit* ^r7 /\ RD = ROOF DRAIN 0 MH = MAN HOI F Li CB = CATCH BASIN MAYAN. KEN!. 0RT1 AY %i. too L.*4044, 1'muirst be PRAINAGF. . 2'.iS • TAX LOT Na 342260 -0010 CONTAINER PROPER1TES 9229 E. Marginal Way S Tatman, WA 98816 ..fitRt9 r' lR& F6C EC' D.ff. P S •.mgP.i — SAWORY SEWER SYSEM - - STORIM DRAINAGE POPIEUNE .1.11141,..=.450 701• 1 00 ;;D‘o , 1 15.--:-Lrri KrAL F a.f I I In. f c 1 r- ........t.._— tt - I ,,, ,.,,, -_, P 0 '--Q ''''''' ‘kmir• .T 4/0 i 1 • .Ii...12.,0 1 1 i 0 I 1 1 1 'r / 114.1/41 6 1 ';' I gNj irAA f fi ,A,....÷ 7 :,:-I.r. :y-t, tir -'-i'4. •c\ \ Jr1,, \ \ \ ..'" ti. \ --. [ .. - i II .0 A - CD 11. 11 1 • 140 4. ...,-TNUT , .. lt j ao , imi I -I- 1 1 Frirli .___I ,. 11 . 0 O it 1 A . • ..... i (.443, -1 --i '--- 1 I Ti 1 .i 1 °. !__ 1 i • -1, , er. ,„-__., :4F kx„ (- 1,"Al; !.... ..,.. i N. I t P.:7t-V-1.-; n.A 7 a'...U, . Vag . lik i !! 7 ; f c- I i :CR .0.--it..i....sattai L .tPt. tleCtl II kr 14,7: \ \ \•A \ .• 4 VI, CI \ 1:iiAirt 04 04/.:044/ M r 1 1 c, 1 I 1 .1 . ...... . ..!!AF. . ",-..A.1., 1..1 Ail I.--=--r---/ -1---7-41 -I2 c-agi fa. jr 11,:t-1 1 ill. ---7--- 4,--", _,_-----r ---"1---t- i • ▪ oh —. 4.4 9 .r.,7176, 11 J 1 if ._., - ....... i; -, „,-.,„ ' .. s 1. i 1 I , 1 ; . .,. , . CO f 3 , , Z ''s . - 14'Uf, .:1 . • ; ‘'D,1! f f I 111; a a .i 'Sc.., el ey.4.0,._ ._ 4E•r:_-,v1:17__.-, _J__, : Do f* 1 I 1 /..i14, I r.1-;:l Pt —..4 ---ii , ....; 1; i II- -,..1 ; ---[ . - — --- 17,-....: , • -- ,---- --_ __ • _ — .-.....0 . ro 6 —k-statmez=2:..st.zz..—____ ? . ! -. 4.-4.7 "...-.4.2- ir @;:''e .; ....1 ...0,....L....L.,..._ . 1 ' e : , ; ' i.,1) „ ‘.--14-1-- I -.4 — 1 f T__ — _ __:::, i ____ ::_,II 1 I • i ce° W. TN .011:,;:".--- • .......L7t ,ff- „,,____ : r P V I di ), - li 41.1•417:44INIf'IT:-"L:rfr44 za, :I. 'I _ :':•c”, -t, 1 1 .• 1 , ',... 11 ■ 1 r : ,...:fT - I4 . — I 1 1 — ■ f I I +:k ','.. JiA ea• Ctt .444= rse=, 41.C.. 414. •10 .112.1. Ay vivaiey,r.; .4 .4 >--" • - .p• ourrau RAMP I CPO 4!1 774 tiE'; Et ptr., • ..; I- • 41:. L RD = ROOF DRAIN o MH = MAN HOLE O CB = CATCH BASIN • - T.: • . — — — -- - . ; —4 .44.444. 44= ca=.44 4.4444 es 4.44. zav_ LEIN 1 rg127 le.g7ter• L _t_ra - tLt. - A= j. KIENIVORTII TRUCK COMP Ciegn L UnCUUS WAY 5. SEAMS_ U4 pe "152C4411.C3) '01,1-031 (1:=711 E7FWER 6: DRAINAGF, P MAP PW77 1- 61P11Z :sp,x ,nq3 0_1 :3o zi:►i 1.00z/sZ/90 :awl /atop b PHx3— aMS- 1115— et ►it \ilitvxa \611,11 \s000tl \:d :ap-u CONCEPTUAL WATER TREATMENT PLAN OONO&IUAL WA773i OUALR1f FACUTY PLAN JNSLX E AUTO . AUCTION as a•.aere u. m. C•.1•C••. Ft•C• .1... ..O.C.11 Lilt ISet • W ..I)rs TAI L47 .1. wrosaOa CaO.t9 APAPERMS Mt E Iic1Td RA 0 O 0 t- w 0 2 0 z g /'IPAS aI.R WWI ma oate 414 11W • ••C a•••••11 e ..:.flea m. *. ..• ••• a• _. a 4 AA pp A►%A".• v.. : .. __:: a / -ao ems -as __ Cg sew myna ■ 1 Elol02:p • Me s 3irq' �"Pec4'A' /SAW? l/. s "P/14... V /f$.v j / 37e +t ) may flea...__._ l/Liie7N f /_P," 770 at R.=7, ate..,. / bp.tt tf mt adA.l. Imo tgi bap:Oars bi Ifs babe 011ie BRURIVIDIVIRCII • •.fs/1 • i s.A1,C/ r,pp „ r .r"./" ..-7)D,.... LW" Rpv fie /- 4""o€ 4_ j /S.ol ) 144e.w A.A.,. e ,-.n, - t 1 !f MI5 is , CoNCSP714.1k Ap!°RO 9L Fb t Bowo E57"/rn97 AV )- » SMIesrir PER UT RPPLIco/TW. ► i apieieep FOR 57ggH 4e90496E hetwirt.moNS RECEIVED FtEOSIONtia- X15 n%'�o4 DEC .t 712M PUOUGVIOAPCS �iamo Ev.d 4.7,644T- I21 .eutrJ...•/• E 1 i 1 STATE OF WASHINGTON CITY OF TUKWILA Department of Community Development 6300 Southcenter Boulevard, Tukwila, WA 98188 Telephone: (206) 431 -3670 FAX (206) 431 -3665 E-mail: tukplan @ci.tukwila.wa.us AFFIDAVIT OF OWNERSHIP AND HOLD HARMLESS PERMISSION TO ENTER PROPERTY BCE Job No. 11419 RECEIVED COMMUNITY DEVELOPIYIENT ss COUNTY OF KING The undersigned being duly swom and upon oath states as follows: 1. I am the current owner of the property which is the subject of this application. 2. All statements contained in the applications have been prepared by me or my agents and are true and correct to the best of my knowledge. 3. The application is being submitted with my knowledge and consent. 4. Owner grants the City, its employees, agents, engineers, contractors or other representatives the right to enter upon Owner's real property, located at 8801 East Marginal Way S., Tukwila, WA 98108 for the purpose of application review, for the limited time necessary to complete that purpose. 5. Owner agrees to hold the City harmless for any loss or damage to persons or property occurring on the private property during the City's entry upon the property, unless the loss or damage is the result of the sole negligence of the City. 6. Non - responsiveness to a City information request for ninety (90) or more days, shall be cause to cancel the application(s) without ref und of fee s. EXECUTED at 7ut",4 '% /4"-- ( city), .T Z (state), on 7 / L/ �7.3 , 20 0 T,kk k -* (Print Name) /� id-kw C Q /�U/ !� J2 2 '�e T u0 (Address) 6 r lief ter-) -r is tr r / (Pho (Signature) On this day personally appeared before me to me known to be the individual who executed the foregoing instrument and acknowledged that he/she signed the same as his/her voluntary act and deed for the uses and purposes mentioned therein. SUBSCRIBED AND SWORN TO BEFORE ME ON THIS 042 DAY OF in Q , 20 0/7 NOTARY PUBLIC in and for the State of I 1 i fi O t S residing at 0:h \ Q&C p My Commission expires on / — 'D 9 F:\Flanning Forms wpplications\Shore- 12- 06.doc December 4, 2006 City of Tukwila Department of Community Development LAND US TO: ❑ Building ❑ Plannin File Number ROUTING FORM Publas ❑ ' ire Dept. ❑ Police Dept. ❑ Parks /Rec Project: 1 A__A- l_D rA-b _ 1.,,c,---QA —4,-) Address: (- 1 CE ykl +,J S O t-t..Q-- Date --) I Z° ( o- transmitted: Response requested by: Nriar Staff coordinator:'`" "` 3` '..-Q- "`� Date response received: COMMENTS • 3I a.oc.)-7 cA 4- 1 s d0 � - ►tee- 04d 1 AA e,o . L, reAA4,1,:6-- RA) 01-03-7 ❑ DRC review requested ❑ Plan submittal requested ❑ Plan approved Plan check date: v/) 01 01 Comments prepared by: O t-t..Q-- 03/14/94 City of Tukwila Department of Community Development JUN 0 8 20 07 NECEHED LAND U T TUKWILA PUBLIC WORKS ROUTING FORylf,,_ � ��c�ac2J v-,„ 0;ion� I. Fire Dept. Police Dept. ! Parks /Rec TO: Building i Planning X. Public Works File Number L C 1 —°3 Project: U.3cd, x co..LoLi ,k_TI \ V1.i r-cv „L.J1 -,.t i ..tcv- ` t.5 i_Lir aLLC_ - 7' _t_fc j -,..1C 17.3, , Address: q,'�'t 1 qt. cis t— rn evy o i v �Lli rvaTt Date J� transmitted: 1 1-crc -I Response requested by: As /�- ' .. i� a.i� kit-(-^, i) Lai S.- -Lev g- , Staff � n coordinator: t " `{ '� 'I Lti -,_:Li -u Date response received: r REVIEWERS: Please specify how the attached plans conflict with your ADOPTED development regulations, including citations. Be specific in describing the types of changes you want made to the plans. When referencing codes, please identify the actual requirement and plan change needed. The Planning Division review does not supplant each department's ability to administer its own regulations and permits. However, project consistency at the Planning review stage is important to minimize significant later design changes. More than minimal design changes require further Planning Commission review, even if alteration is required to satisfy a City requirement. This further review is typically a minimum 60 -day process. Requirements based on SEPA (e.g., not required by an adopted development regulation) MUST identify the impact being mitigated, the policy basis for requiring mitigation, and the method used to calculate the mitigation required. Calculations of project impacts and the mitigation required (e.g., water capacity, road level of service analyses, or turning analyses) may be required of the applicant. COMMENTS (Attach additional comment sheets and/or support materials as needed.) �i _A„g_An' If It cod--; r vi Ck --yvuz 11 01,L-L___ !rQ^'` &, rl-rechqetAl INiXk k IM'56 11frr %l6 /D—j PIA) p4frio141z - co1A-uess040.4- w� J�`'( c vbc6b. ReuiseJJ pLos w/ lam nAe404 �.ree,Y. re)QA(914.4)14� �, Plan check date: 10-7 l Comments JOI prepared by: t n 8 5 Update date: City of Tukwila Department of Community Development File Number L -036, LAND USE PERMIT ROUTING FORM �_�.,a „kJ,. t f Y1 01 re, o' 15)-)Q4 Police Dept. Parks /Rec TO: - Building Eli Planning X Public Works Fire Dept. Project: Loci -✓ aLL. ca &'- -( v,,ti..5yz,t �� ti,-fri _.(-(Y - \ t S `LAreLl,L L k, A-t-t.c 6 n_; Address: q,,cp q. ct M 69vr01 v. Svc j SAA- T-. Date J� transmitted: I -�i o - Response requested by: As l�-i' . yu,, k eti—,c,� ut�„4; L 3 ia,,._, -1 -uv 8- , Staff ■ coordinator: ' �� �1, i Lo - Date response received: I REVIEWERS: Please specify how the attached plans conflict with your ADOPTED development regulations, including citations. Be specific in describing the types of changes you want made to the plans. When referencing codes, please identify the actual requirement and plan change needed. The Planning Division review does not supplant each department's ability to administer its own regulations and permits. However, project consistency at the Planning review stage is important to minimize significant later design changes. More than minimal design changes require further Planning Commission review, even if alteration is required to satisfy a City requirement. This further review is typically a minimum 60 -day process. Requirements based on SEPA (e.g., not required by an adopted development regulation) MUST identify the impact being mitigated, the policy basis for requiring mitigation, and the method used to calculate the mitigation required. Calculations of project impacts and the mitigation required (e.g., water capacity, road level of service analyses, or turning analyses) may be required of the applicant. COMMENTS (Attach additional comment sheets and/or support materials as needed.) kiALS e 13yl3vi Cpw, wt.e A-i-s a+ -P1 S -I-c . I Plan check date: Comments prepared by: A Update date: CALL BEFORE YOU DIG I 1- 800 - 424 -5555 r-100 FT r- 1 X510 8(2T S01 ( COVER SHEET - STORM DRAINAGE AND WATER QUALITY IMPROVEMENTS A PORTION OF THE FRANCIS MCNATT DONATION CLAIM NO. 38, IN SECTION 33, TOWNSHIP 24 NORTH, RANGE 4 EAST, W.M. IN KING COUNTY, WASHINGTON SEE SHEET C2. C5 PLAN VEiN DETAILS OF AREA NC SEIM LIT nook [E s' ADS NC.98M TAX LOT No. 0007(0- 00333 Th. Boo* company 6011 E Heroine way S. •a 0-GiO(5I) 94885/Or 150875 11 OF YK MIL DO6O11 . 1666 FED (09 1660) 914: ROOD EIDWp . 6.1 S FTET 18TH IG9 94SL 07000 00101 4 . 1121 A FID (198 AA6) tciW 1a1 WEs M 601 3 8801 yzazo (911. REC. As 2117257 STANDARD CONSTRUCTION NOTES - CRT OF iUCWLA PRIOR UTILITY TO START CONTACT ONE -GAL (1 -800 -- 424 -5555) FOR COMM PROJECT MANAGER STEVE NIBBLE PH 847- 340 -6622 ST93RIEa(ALC M INSURANCE AUTO AUCTIONS WE.STBROOK CORPORATE LENTO SUITE 500 WFSTpE51ER. L 80154 OESIN ENGINE% JAY GRUBB/CFMRLES C/0 C016ULLL1540 DICNEFRS 18215 72M) AVE SOUTH KENT WA 98032 .PH 425 94�.COM OWNER MERRILL CREDO 6/955400 UC C/0 BEN MARGOLES WASHINGTON REAL ESTATE HOLLINTS. LAC 800 UTN7iR9T1' STREET. SURE 2520 =TIE WA 98101 GENERAL CRY OFTUKYYLA 1. LDCA1UNS SHOWN FOR =RIG UNITES ARE APPROXIMATE 2. AT LEAST 48 ULNAS BEFORE STARING PROJECT STE WORK, NOTIFY TIE UTERUS =PECTIN AT 206- 433-0179. AT LEAST 48 MIDAS PROM TO ADDITION 94580 STE MN, AD T U O Low= AT 1- (800) 424 - 6555. N 0000E Of COMIRAGTOR OWL REIN THE SPICES OF PRONE UT01IY LOCATOR SEANCES 10 CLEW ALL =MOM AREAS 3. REQUEST A RBLC MORE IMLTY =PECTIN AT LEAST 24 !CURS N ADVANCE BY CALLING 208- 433 -0179. 4. THE CONTRACTOR ASSAM SOLE RESPowsmarr FOR WIRIER SAFETY. AND STRICNRES AHD BEROVDE NTS RESOLING FROM CONSTRUCTER 5. TIE CONTRACTOR STALL FAME THE PDIOT(( AID COMMONS. THE GU01 � PLANS. CURRDR COPY MY OF TUKW6A DEVELOPMENT COMMUNION STANDARDS AVAILABLE AT THE JOB SITE. 6. ALL WON SHALL CONFORM TO THESE APPROVED DRAWINGS. ANY CHANGES FROM OED APPROVED PLANS RECTUM PRE - APPROVAL FROM 1NE OWNER THE D46INEER, AND THE GARY OF 1LNMCA 7. ALL 691101095 MD W1ERW5 SHALL MEET Malt OF TUKWI A DEVELOPMENT GUIDELINES AND DESIGN AND CONSTRUCTION SNMTARDS. UNLESS OMERNISE APPROVED BV THE PLOW WORKS DIRECTOR. 8. CONTRACTOR SHILL WOMAN A CURRENT SET OF RECORD DRAWINGS I. CONTRACTOR TAU PROVIDE RECENT DRAWNGS PRIOR 10 PROJECT FINAL 10. � AL A PLAN FOR PUBl1C 11. ALL SURVEYING FOR PUBLIC FAWNS 91ALL BE DONE UNDER 174E DIRECTION w I4 5 VMSH 9ION L1CDG9D NAND SURVEYOR. VERTICAL PEN 9NLL BE HORIZONTAL DATUM SHALL BE WASHINGTON STATE (GRID) 000DONTES NORTH ZONE. USING MAD 83/91 SURVEY CONTROL AND 1ED 70 AMY TWO CITY W mow 48285094021.064198. MONUMENTS. FOR PROJECTS MIN A FLOOD CONTROL ME, THE PENNEE MALL PROVIDE CONVERSI N C4CUlA71DIS TO NGw 1929. t2. REPLACE OR RRRELCGTE Al MI5 DAMAGED OR REMOVED DIE TO 13. RETAIN. REPLACE OR RESTORE EX4TNG VEGETATION N R9NT5-0F -WAY, EASEMENTS. AND ACCESS TRACTS CONSTRUCTION /CRT OF 1U(Y ILA 1. ALL WOK PE%ORLED TALL BE PFR APPROVED PIONS AND SPECIFICATIONS OILY. THE PFJIOTEE 8 REQUIRED 70 RANTAN A SET OF APPROVED PUNS. SPEITAFrAMINS. AND ASSOCNTED PERMITS ON THE JOB SITE TORO 9W1 BE PF73ORED N ACCORDANCE Wl04 Al FEDERAL. STATE, AND LOCAL LAWS PERI:urn SHALL APPLY FOR A REV61N4 FOR ANY WOK NOT ACCORDING TO THE APPROVED PUNS. 2. PERMITTEE/CONIRCTOR CONFERENCE A CMG NSPECTOB(S) PRIOR TO EJECTORS ANY WORK 3. WON( N ROADWAYS. AL1 wow N moors SHALL MEET TIC 11 AID THE FOLLOWER° a. MDR TO ANY ACTIVITY N COY 1012I4T-0F -WAY, THE PERMTIEE TALL PROVIDE 7IE CITY A TRAFFIC CONTROL PUN FOR REVIEW AND APPROVAL THE TRAFFIC CONTROL PLAN SHALL INCLUDE THE LOCATOR, ADDRESS AND DESCLOPCOM OF TRAFFIC FIN DURING THE WORK AND TALL MEET MUICD REQUIREMENTS' b. All. WORK REDUWM45 LARNE =SIRES MUST BEM PERMIT ONLY. FREW THE THIRD THURSDAY N NOVEMBER TO THE FOLLOWING JANUARY 210, 114E 0061OR DOS NOT A1Dk LANE CLOARES N THE 1UKWILA LAWN CENTER C. FIE. PEDESTRIAN. AND VEHGA2 ACCESS TO DINING SMALL BE MANTABED M All TIMES. EXCEPT MDT PERYRTE 4485 P094195458 FROM THE BUILDING OTHER AND THE DIRECTOR TO CLOSE AR ACCESS, A ALL ROAWAYS 9981 RE KEPT FREE OF DIRT AND DEBTS 1.910 STREET SEEMS. USE OF WATER TR11G4 FOR TING ROADWAYS RENNES PREAPPROVAL FROM THE DIREC a. 06021. STEEL FLOES OVER ANY MOCK AT ANY THE WORK S SLOPPED AND THE TRENCH 6 LEFT OPEN. STORM DRAM NOTES - CRY OF TUONLA 1. ALL METHODS AND INTERNS SHALL MEET CRY OF TIM8 A ODEUIPMDRT GUIOENES AND DE9GI1 Alp CONSTRUCTION STANDARDS. AND THE 010640 KING COUNTY SURFACE WATER OB90N WMMA4 UNLESS 0111ERM SE APPROVED. 2. TARN ALL STORM IRAN INLETS WIN "DUMP NO WASTE' AND ELDER 'DRAMS TO STREAMS'. "DRAG TO WETANW', OR "DRAINS TO GROUDWATER', AS APP CABLE 3. ALL TRENCH WINTION OPERATIONS SW1U MEET OR EXCEED ALL APFLIGANE SNORING LABS FOR TRENGES OVER 4-FEET DEER AU. TRD4C11 MEET DMA ROWEIIDTS. SAFETY SYSTEMS SHALL 4. ADAM Al WHILES. CATCH 81516, AND VALVES N PP RIGHTS-CIF-WAY OR EASEMENTS AFTER ASPHALT NOTES 1. A11. WORK AND EXCAVATIONS SHALL BE N CONFORMANCE WITH 114E WA9 ENCTIM STATE WOO. INN CONTROL AC1. CONTRACTOR STU IMPLEMENT A COYPU.ME M8FOTORNG PLAN FOR OCCVIATION OF TRENCHES INCLUDING =MALLS AID BASE NgERMIS, CONFIRM 111E CONFAMDA1ION. CONTRACTOR SHALL COORDINATE WORK FRMI ACTIONS, FIELD VERIFY AND CONFIRM DESIGN Ogd'ATIB6TY AHD PmL SYSTEMS. G REYEDIL 14. ANY 94069811.691.5 N DE DESIGN TO MA IMECHA lSD1 MEDAL ssEM6 REPGNT COSIAONG AND 114E GUY. 15. 2. a40490 L EXCAVAIIOHS=00 N LETS OF 8 INCHES AND COMPACT TO 95 PERCENT RElATNE COMPACTED 0(/5817' WITHIN 3 FEET OF PAVEIENT SUB69ADE UNDER PAVED AREAS AND 90 PERCENT RELATIVE COMPACTED 995TY.AT DEPTH OF 3 FEET AND SEATER 9EL01 13 BE SUBGRADE SMELL OTHER THAN PIPE IMPORTED, CLEAN. SELECT GRAVEL BAN CO ORMA9 =DOT STD SPED L 17. 9- 03.1(3) 3. STORM ORANGE PIPE TAU BE ETHER: A PVC (SIR 35) WITH RUBBER GASKETS AND N ACCpIOWCE 97174 A5TM D 3034. 8 JDDT5 AND RUBBER CONFORMS. ING TO ART A21.51 OR AIWA 151, 0. 50. yam PUSH ON GASKET TO CONTRACTOR SHALL ASSURE THAT ALL NECESSARY PERMS HAVE BEEN OBTAINED PRIOR INFERNO' ' OF 500. =MIT.., SHALL BE AND ASPHALT RUBBLE GENERATED FROM DEMOLMON WINDS N EXCESS OF 10 MPH � ST RAIN DENTS OR ()OERW6E PROTECTED FROM CEI SHALL REPLACE ALL GAB, PAVNC, AND LNO)SOAPNG DAMAGED AS A RESAT OF AU. N mSS� SHALL BE ATTG15�BY THE swam SOURRCE AND TS VEOFTCAT0N BY SAMPLING AND ANALYSES BY PAC018 PRIOR TO USE C110N !wry MIM 4. ALL PIPE 9W1 BE =AWED WITH BEDDING N ACCORDANCE TIN WSDOT SPECIFICATIONS 1. _ _ _ PEE SKILL BE LAD ON A PROPERLY PREMED FOUNDATION ACCORD= TO 5SDOT SPECE)061KNL 185 SHALL INCLUDE NECESSARY LEVEL= OF 174E 1RDIGH BOTOI OR THE 2' TOP OF THE FOUDATIN MAIDIALS. AS WELL AS PLACEMENT.NED COMPACTION OF MONIED BEING MATERIAL TO IPPONI GRADE SO THAT THE ENTIRE LENGTH OF NE PPE WL1 EF. 3, SUPPORTED ON A LINEMAN DENSE URIYELDNG BASE 19 THE NATIVE MATERIAL IN THE BOTTOM OF THE MINNC( MEETS 7HE REOUNDEMS FOR 'RAVEL BA0O31 FOR PIPE 4. BEDDING, THE FIST LET OF THE PIPE BEDDING' MAY BE OMITTED. PROVIDED THE MATRIAL N 3 THE BOTTOM OF THE TRENCH MEETS THE REQUIREMENTS FOR 'GRAVEL 9004991 FOR PIPE mow.' THE FIRST LIFT OF PEE BEDDING MAY BE owns PROVIDED THE NAM= N 174E 3 BOTTOM OF THE TIMER (94090 40 BASE S L.009m N. REGRADED, AND CONTRACTED 10 FORMA DDS( 5. ALL CATCH BASINS SHALL BE TYPOS) AS SPECIFIED ON PANS AND MEETOG THE 6. RENAMING OF THE CRY PUBLIC WORN DEPARTMENT. 6. SIMARD LARDER SIPS SHALL BE PROVIDED N ALL CATCH BASNS/MABGIE,S EXCEEDING a FIE (5) FEET N DEPT4L 7. THE CONTRACTOR 94ALL BE RESPONSIBLE FOR 10. THE CONSTRUCTION AREA WHETHER SHOWN OR NOT SHOWN ON THE PUNS. UNTIES ram 8. 500. STRBIIATION (WEED KILLER) TAU BE APPLIED N AREAS 15 9 PAVED. KED, 11. . 2-FOOT MINIMUM GDR OF DIMING AND PROFESS LANDSOIPE AREAS APPLY AT MANUFACTURE= RECONEIDED RATE TO ASSURE 3-0404 MI46MN PDEIRATWR 12. 9. PON= OR D AT46 ON PAVEMENT EXCEE ING ONE- OUII9R 9401 N DEPTH 9W1 NOT BE ACCEPTABLE AND SHALL BE CORRECTED WV 111E CONTRACTOR. 10. CONTRACTOR IS CAUTIONED THAT IMPACTED SOILS, ASBESTOS CONDI/ 0G MERIN. AND /0R SEPTIC CDNTANVIG SOBS MAY EXIST ON SITE CONTRACTOR 0/641.1. MIEN 111E PROVIDE ANALYTICAL DATA TO 0910RM04E APPROPRIATE MEASURE AND PRACTISES FOR ADDI✓Eti O40 711ESE ITEMS DURING DEM5UTGN/DfG9ATION ACTIVATES 11. GENERAL COP/MANN SHALL CONFIRM °DYNIERNG AND/OR SHORING RIAIRE m45 INN GEOTE0IIN. ENGINEER AND MAUDE ALL FRONTONS FOR 9GOINC M4D/0R OBVATERW' OF E9CAVATIONS, ALL DISCHARGE FROM DEWATERIG SYSTEM SHALL BE DIRECT TO THE SANITARY SEWER MIEN OR HOLDND TANI(S FOR OFFSET DISPOSAL AT AN APPROVED LCCAT1O. THE CONTRACTOR TALL BE RESPONSIBLE FOR ALL PERMS ASSOOOIID 111TH DEWATERNO AND DISPOSAL. CONTRACTOR SITU COMORD1ATE WIN PACCAR EMARCN mTN. REGIMENTS PRIOR TREATMENT FACILITY 7p DETERMINE 1ESfND 12. NE DOSING STORM SERVICE SHOWN 6 APPROXIMATE. BASED ON FEND SURVEYS AND AS -BUILr RECORDS. THE GENERAL =TRACTOR SHALL '0005190 O¢ 9501716 SMITH WE TO VERIFY THE DIAMETER AND LOUDON (N0. DEVA1M1N5) PRIOR 10 CONSTRUCTION Immo MD /OR VIDEO INSPECTION MAYBE REQUIRED 10 VERIFY DOWNSTREAM & UPSTREAM 8COIRATED1IY OF 014y1 a DI )754 0 11 00 17 E NT M� 6111198 OR a OF THE GARNERS REPRWITAIWE MD ENRGNAUSEl =MONO DICKERS (425- 251 - 6222). 13. COTm*CTOR TALL CONTACT AND COORDINATE WON RTHE 6199115 UR1TY COMPANIES o ON 0681 OFF 085001 TO REAM 5849/0 E OF EKSIOG 4101. 9 COOIIOI90ED WIN OWNER 0008181 THAT ALL APPUGABLE CONSTRUCTION PERMITS HAW BED4 SECURED. MIRE TFIATCON6 R NECESSARY PRECONSTRUCTON MUGS MANE BEEN HELD PRIOR TO NY LOCATE =M40 UNITES AND MATE COORDINATION MN UNITY AGENCIES. FIAO ALL CLEAR= LA NS FOR DEMOUION OF PAVDENT AREAS PROTECT ALL EX SIGN ENNNACE CONVEYANCE S151UIS FROM SILT LADEN WATER NSTALL SANDBAGS MD 1110 -19L TYPE FILTERS ON UPSTREAM RIDE OF SANDBAGS AT DO901 SLOPE PERIMETER AT STOCKPILES. TREII04 EXCAVATIONS. FILTER FABRC SOUS AT CATCH LASIN5 AND ESC MEASURES AS NEEDED TO PROTECT STORM STS1EM FROM SILT LADEN WATERS PANG /GM/ DLSDONECT APPROPRIATE mars TO PREVENT 981917 LADEN RAM OR DERRS FROM ENTERING DOWNSTREAM DRAINAGES COVER ALL AREAS THAT WILL HE UNWONTED FOR MORE THAN 7 DAYS DURING THE 9RY SEASON AND 2 DAYS 018)10 THE WET SEASON. UPON COMPLETION OF THE PROJECT. 500871 EE ALL DISTURBED AREAS AND REMOVE NM IF LATERALS OPVIP CLEAN STORM DRAIN PIPES. DO NOT FLUSH DEBRIS OR THE CONTR•CTOR SHALL KEEP PARKING LOTS MD STREET MEAN AT ALL TOES M DRY SWEEPING. WASHING OF ANY TRAVELED SURFACE SLL NOT BE 211NE° PRIOR TO OCCUPANCY. THE PERMANENT STOW DRAINAGE SYSTEM MUST BE CLEARED OUT M PUMPNG (DO NOT PULP OR =POSE PITO AM OTHER STEAM. STORY SEWER, OR SANITARY SEWER SYSTELL) LEGEND P Pam *803 811006 (DIAL) C$❑ YARD 061E1ER 1 O Pam H 01 =CON EN (5 NOTED) ® U0117 =HOLE (AS MIEO) NCH ASS (CB) • 0198 MWT99E (SCAM .0410 s9EA 9LAMIDF (S9lQ 56906 5E9EA CLEARON (SSCO) GAS ME1FR OAS WOE ruin VALVE (N) FEE HOW (FA) WATER L MaE .d. 0)DXD® o • NOSUC RIOT 0080918 ® IND MEIER J1 MON e MOON All I> N -G -a- -1N0) _. -FAIN) -0 0(014) WNW C992ETE 9MEL WAER NE SNOW SEWER LITE 5198 MACE LITE 9S UE MEPNNE UNDERGROUND POWER UNDERGROUND TOTER OVERHEAD OMAN L80( FENCE EXILE= NNW = VICINITY MAP Nis SURVEY INFORMATION LEGAL DESCRIPTION A PORTION OF THE FRAN= Y8NTT DNA= CLAN N0. 38 N SECTEN 33, TEN19IP 24 NORTH, RANGE 4 EAST, NJ1.. N KING COUNTY, VASION I5F4 BONG 11110 PORTION OF TRACT N0. 3 AS 91OWA ON DE PORTION MAP FILED N CAUSE N0. 120091, OF THE SUPERIOR COURT OF MAC COUNTY, MA9080109. ACE PARRICLLARLY DESCRNED AS FOLLOWS' LINES COMMENCING 1 FEET SO AN INTERSECTION NORTH UTE OF SAID PONT DONATION LAND CLAN N0. 38: 1ND8CE NORTH 69' 15 16' NEST, 1499.53 FEET TO OE EASTERLY MARGIN OF CONTEROAL WATERWAY N0. 1 (DUN905f1 *P3ERWAY1 THENCE SOUTH 15' 00' 00' EAST, 456.1 FEET ALONG SRI) ELY MARGIN TO A PONT: THENCE FAST 1574.72 FEET TO THE WESTERLY NE OF SAID EAST MARGINAL WAY THENCE NORTHERLY ALONG SAID WESTERN LINE AT 481 FEA. MORE OR LESS TO THE PONT OF BEGINNING. EXCEPT DM PORTION THEREOF CONVEYED BY sown c amMG8 GARY 70 BEAT NORTHERN RAILWAY COMPAM, ET AL, BY DEED DATED MARCH 7, 1957, RECORDED UNDER KING COUNTY RECORD= N0. 4784818. ALSO A PORTION OF THE FRANCS MATT DONATION CLAN PM. 38 N SECTION 33, TOWNSHIP 24 KCMG RANGE 4 FAST, W.M. N TONG COUNTY. WA9aGRO1, BEANO THAT PORTION OF TRACT 2 AS SIMN ON TIE PARTITION MAP FLED N CAUSE N0. 120091. OF 111E SUPERIOR COURT OF KING COUNTY, WA91NCf51A MORE PARTICULARLY DES AS FOUNTS COMMENCING ON THE WESTERLY LATE OF FAST MARGIN WAY SOUTH. MOOT PONT BEARS NORTH 8P 15 54' WEST. 2470.01 FEET ACING THE DONATION CCAN U TE AND SOUTH 23' 40' 59' FAST, 468.77 FEET ALONG THE MINN LW OF EAST MARGINAL WAY SOUTH FROIV.THE NTER5ELTN1 OF THE LNE BDNED4 174E DONATION cum of FRANCS MONTT,ND IENN' VAN MELT WITH THE FAST LINE OF =TIN 33, 1O11N99 24 NORM " RANGE 4 FAST, NIL, N 1M10 COUNTY. WA9DWT014: THENCE WEST 1574.72 FEET 1O THE EASTERLY LDE OF COMMERCIAL WATERWAY N0. 1; 114ENCE FAST 1033.10 FEET 1O A PAT DESIGNATED FEREN AS PONT i1' FOR SUB.SEDLEJT REAJm10. THENCE SOUTH 21 02' OW EAST, 46.03 FEET: THENCE FAST 58138 FEET TO THE WESTERLY LNE OF FAST MARGINAL WAY MUTE PONT 40409 NORM 23 40' 89' WEST ALONG SAN WESTERLY UE 297.03 FEET 10 NE ODEPT THAT PORTION THEREOF CONVEED FE *MANN CHEMICAL 10 GREAT NORTHERN RAILWAY COWAN. ET AL, BY D® MARCH MAR 7T AND RECORDED UNDER KNO COUNTY RECORDING N0. 4784818 DATES OF 8(.RVE113 FED DECEMBER 1999. J DIG CONTACTED DURING ALL SURVEY MONUMENTS SHORN AS FOUND WERE VETTED AT THAT NAPE. HORIZONTAL DATUM - BABE OF BEARDE09 NORTH AIERGN DOW OF 1927 4A901CTON STATE PANE CONDONE SYSTEM - NORM: ZONE AS PERMOI MARGIN 4T 9 OFFSET CENTERL04 OF EAST MARC WAY THEN AS MTh ,t,1'U.1 West, Nom, % Pogo 227. KING COUNTY RECEDES. VERTICAL DATUM - MEN OF ELEVATIONS NAND 1988 ORIGINAL PROJECT DINCIDLARG FROM 1988 SURVEY BY 9ARONAL06 ENSUING DI NEEN 2' BRASS 061( SURFACE •MONWENT ON FAST SEE OF 102nd 5L BRECE (DESIROED) 871E 9B4cHMA I( 10P OF 'P1' NIL SET ON FAST 9DE OF EAST MANN WAY (SEE DRAWING) ELEVATION - 18.68 FEET ENE ADDRESS 8801 FAST MARGINAL WAY SMILE WA 98106 TAX ACCOUNT 481(699 542260- 0060 -03 FLOOD BFORIMTION FEDERAL EMERGENCY IMMANENT AMC( (FDA) NFORA1ION 911I1 (FLOOD INSURANCE RATE WP) MAP Na 6.36.37C0645 F PANEL MOST OFUTHE 98)9 PROPERTY 16, 04 �E X - A 1 00 1149 9 aE0CT P- ROPERTY B ALONG THE WEST OUNDARY S N ZONE 'AE' - SPECIAL FLOOD HAZARD AREAS MANNED BY 100 -1EAR FLOOD B FLOOD ELEVATION OET70GNED - 84 FT (1928 NO)0) - App 3.51' - 1191 FEET (HM) 1988 SEE DRAWING). INDEX OF C1 OF 5 co V 81SFEET STORM DRAINAGE AND WATER OUALJTY IMPROVBAENTS C2 OF 5 STORM DRAINAGE AND WATER DUALITY IMPROVI3ADITS PLAN C3 OF 5 STORM DRA[NAOE AND WATER CUAL TTY IMPROVEMENTS PUMP NOTES ARID DETAILS C4 OF 5 STORM DRAfNAQE AND WATER OUALJTY M ROVE EATS NOTES AND DETAILS C5 OF 5 TEMPORARY EROSION AND SEDIMENT CONTROL PLAN • 5 0 to LL �I �I &I I II 11'1 L Tu __MEUCT ISVIR CAUTION THE ML TRICTO UHALL BE RE E FOR MIRING THE LOCAila AID DEPTH OF ALL AND s LITIMG 174E SHOWN ON THESE PLANS OR NOT BY FOR MUTES A INCLUDE LNG NN Ha ow& AHD VERTICAL LOCATION RIOT TO CONSTRUCTION. ALL OF 174E NCLDE NUT( LOCATE O 1-BM- 424 -5555 AND THEN POHIOING AU- O WHETHER EXISTING OR NOT UT AT LOCATION OF NEW U91GV OROSSOIS TO RISGILLY COFUC75 INST. LOCATIONS OF SAD UNTIES AS SHOWN ON THESE PLANS ARE BASED UPON 711E UNVERIFIED PUBLIC INFORMATION AND ARE SUBJECT TO VARGIO. CONSU 192901 RC OCCUR, MCONTRACTOR ... 9M1L1 CONSULT BMGINl5D1 _ 2) 6 J C. 0013 ELEVATION - 11.91 En T -2OFT 4:1 MAX END SLOPE SLOPE TO MATCH COSTING 2:1 MAX SIDE TO MATCH 025114,0 MOTOR POWER POLE STORM DRAINAGE -WATER QUALITY IMPROVEMENT PLAN 11810819 PA18 VAELT STIORY:L1E R 9/ 98 2PG CA IRDGES SEE DETAIL 4A 48. 916 C4 FG - 18.0 IE• 10.38 (12' E -N) IE - 6.08 Or 5-OU1) W/D0511NG 14 IF 12" SD 00.56 PEW VOR1ECH8 MODEL V4000 SEE DEEM. 3 /4 SLIT C4 FT;- 180 0 - 10.45 (1r E) 8: - 10.45 (6' 5) 0 MNITOR WELL 110)( END SLOPE SLOPE 10 y0' a° 0 ®� ®�� 241E MODULAR mom KEYSTONE COMPACT OR L EQUAL RETAINING WLL TOP WALL - i \14.0 MATCH 21 SIDFSIDPE FROM TOR VAULT: BOTTOM \WAIL - 12.4± MATCH DOSn146 _ 15 PAVFA0.N6 -A 1�A b St' . Z G F m OUTFALL TO RNER IE 32' DI= 1.77 N�LINK FENCE 2-72' PAAO7 S6 AND VALVE.CHAIOEER. DUPLEX PUMPS M/ 6' 060HMCE W/ °SOLID HD RIM I. 93.93 o • , ST IE - 0.88 (1r SE). • QIE • 098 ((MN) 10 LFe 1r SD O 0.56 A = ;ZS C13-602) 18" DI CUL ORDINARY HIGH WATER WRIT- 8.01' STORM 11FT STATION 4:1 MAK END SLOPE SLOPE TO MATCH DO5TWG 14 4 WON. VL14 . SSMH -A .0 /GUARDRAIL G -A(74) et .���SDTYPE 2 W/ PEW FLOW ` < ° 4 \KEx u: -e2o1 (24" E).. \91 0 -.2.13 (24'.11) IE - 1.01 or 9) 4 4v d 20 100 YR FLOOD ELEV� 8' ORDINARY HIGH WATER 6 LF 1 SD 026 % / / 0 DATUM 6LBP -500 EXISTING BUILDING FOOTPRINT AREA= =16,560 50A. BLDG. HDGHT- + 13' ABOVE Ff. CP PROPOSED GRADE EXISTING 18' GRADE GRADE GRADE i : . / // f - STORMPLTER mom 4000 vAULT SECTION B -B STORMFTLTC2 VAULT SEE SCALE I' =50' HORZ 1' =5' VERT y t4 SHT C -4 14LF12.SD00.5%- SECTION A -A ni, SCALE 1 =50' HORZ. ' =5' VERT n cv 1+00 SIDE SLOPES 4 6 TR GENERAL NOTES 1. 5EE SHEET C1. C5 FOR ADDMONAL NOTES AND CONSTRUCTION 560006CE AND EROSION CONTROL. 2. ALL STRUCTURES AND VAULTS SWL BE PLACED ON A PREPARED 918099E AS APPROVED BY A LEOTE0Oa'i1L EM46EER. CONTRACTOR 510LL PROVIDE ALL BALLAST, ANCHORS. SORDID AS NEEDED TO PREVENT EMPTY STRUCTURES FROM MINING. 3. NEW VAULT. MANHOLE. BASIN STRIACTURES AND NEW PIPE TRENCHES SHALL BE 1006 L00D AND SEALED 97114 AN M4ERVIOUS MEMBRANE TO A 1068914 ELEVATION 8.0. MEMBRANE SHALL BE 'ACF1Y AS MANUFACTURED 6Y ACF WEST INC OR EQUAL 8.3 OZ, 4 46 COATED. 12 MI. THICKNESS 90VEN HOPE POLYOLEFBN FABRIC. ALL SEMIS AND D4TALLAION S ML BE PER UNNFACNRES RBI:W MBS 004080 ALL STRICHJRE MOORING AIW POE BOOTS 4. CONTRACTOR TO PROVIDE AND INSTAL ALL BEERS, FRWES. ORATES AND COVERS TO MATCH FINISH GRADE (FO) ELEVATIONS FOR ALL N M AND COSTING MANHOLES AND BASINS (TYPICAL) 5. PROVDE AND INSTALL ALL NB, ASPHALT PAVEMENT SURFACE TO MATCH 0%811140 COLE KIND T10C101E5S AND MATERIN.S WITH S DDON mum W Y CL B ASROLT OVER If DEPTH OF 2 Jr MINUS CR8 DYER 12' PREPARED SUBBASE 0 956 Rk1ATNE MAXIMUM DENSITY. ° . `La°j C FLOOD ELEVATION - 1191 D ORDINARY. HIGH•. WATER MARK -' - 1,,01`;. 1 . 7L,,, B -R A �a \ ),.5 ... CET; �'E e..... - 1285 II -9.38 (12'. ._. .... . .:.....:PROPANE IE 18" CNC E= 6.88 -`. PEW BOWL TYPE 2-64' (604 - 9.2± 10 -7.21 (18.0)9/18' 'BOEHM 1F -2 CHECK VALVE EX 6- 7.08(18'9) F10D NERVY IE - 7.80 (8. 5) 4os 41F 8' SD 0 10.06 PEW 6102' PFEC'AST VAULT 8TOR FL188 W/ 40 ZPG CARTRIDGES SEE DETAIL 1A. 16. SHT 04 FTC- 15.0 IE - 600(8' N) 8!- 10.30 (8' S) 4 4 LF r 5000.56 100 YR FLOOD 20 10 8' ORDINARY HIGH WATER 0 PAWN AZ6V -SOD I 0 0- o 18' FINISHED EXISTING GRADE GRADE i f / // f - STORMPLTER VORTF.(74S MODEL vAULT SECTION B -B SCALE I' =50' HORZ 1' =5' VERT y t4 0 0 1+00 STORM 2 +00 LEGEND PROPOSED ASPHALT PAVEMENT D1STINGG CONCRETE PAVEMENT EMIG ASPHALT PAVEMENT PROPOSED magi GROUND CONTOUR PROPOSED STORM GRAN MST. 5T088 DRAINAGE USING GROUND CONTOURS E105ING SPOT ELEVATION 13....E ............... +��' 1 1 �e 1RI 0 0 CAA d.a Dole/T :7/2]/2007 3:07 PM 30' X 48' NELA -4 ENCLOSURE CONFER LOCATION WRIT ems OFFING 48' r HT Y X Y ACCESS DOOR 5/8' ST. DIM 0 4' OC STORM DRAINAGE AND WATER QUALITY IMPROVEMENTS PLAN -PUMP NOTES AND DETAILS T.O.C. ELEV.. 9.1± MATCH F0091 GRADE PAVEMENT SLOPE 5CH. 80 GALY. STEEL PPE 04 UFTNG CAABLE 5 ON CORER NON-9R0N( INVERT ELEV - LOON) GROUT 3' FL GTE VALE CHEW VALVE 0EV - 5.0 PUMP OFF - ETiV - 2.8 PROVIDE MID INSTALL 2 W YD CONC. BASE FOR BALLAST FLOOR REV - 1.1' FLOOBLE CDWUNG 3' NET Nm =1 'i'aeAir:4 ' Ir-f WET WELL SECTION N.T.S. 3' 760 COMPRESSDN CGU RE OR EQUAL POMACE PPE 0 H M� p ALL ACCESS DOOR5, HATCHES FRAMES AND UDS SHALL BE IN CO✓FOOIMICE WITH MSNTO 25. p EFFLUENT PUMP AND BASIN 95104 SHALL DE ALL IN0.U5NE CONTRACTOR SHALL PROVIDE AND INSTALL FILLY OPERATIONAL SYSTEM 60010451±1.000060051400005. (D CONTACTOR SHALL PROVIDE MOP DRAWING FOR APPROVAL PR10R TO CONSTRUCTION. p PUMP SHAH RE DUPLEX PACO 91BLERCIBLE MGDEI. 470 -15 TYPE MSC 501®FR98±0. 1750 RPM. 5.0 HP (MIN). 3 PHASE. 6.5' IMPELLER, UL APPROVED 0.11. DN. 1 OR 00.5465047; CAPABLE OF P600UC1N5 418 GPM OUTPUT WITH 16' TOTAL DYNAMIC HEAD COIERACEOR SHALL VERIFY VOLTAGE AND ELECTRICAL REQUIREMENTS. DUCT C6pWEM PRANG PUMP WRAF COROXRAIXM MAY TWO SOUTH EFFLUENT PUMP AND BASIN DETAIL mar TO SCALE 2 - r FL EXTFIO4L SMOG CIEOC VALVES MM LOOT MINES 2 - rFt GOEWLVE RIDTBE COUPLING PLAN VAULT MOEN 233-IA mesas COUPLING 3' INLET REOBLE COUPLING 3' DISCHARGE 3' F1. GTE VALVE 3' FL TEE VALVE BOX PROFILE ROT TO SCALE 3D' X 48' NELA -4 ERGLD91Fi. CONFIRM LGCMIW WAIN owner OPENING 48' .8* lit Y X 3' AOCE55 DOOR 5/8' STI. COWL O 4' 00 7.0.C. ELEV.. 12.01 MATCH ROSH GRADE PAVEMONT SLOPE 80 GALV. S1ED. PIPE 3' PAC COMPRESSION COUPLE OR EQUAL DISCHARGE POLYEIMIDE PIPE CL 180 OR BETTER LOOPS ON LIFTING CABLE 5' ON CO(7ER INVERT REV - 0S6(RN) GATE VALVE 04500 VALVE OEV - -2.0 U A 11 WET v/ELL SECTION N.T.S. PROVABLE AND INSTALL 2 W YD C0/4C. BASE FOR ELF/ - -121F p ALL ACCESS COORS HATCHES. FRAMES AND UDS SHALL BE IN CONFORMANCE WITH *40510 25. p EFRIIEHT PUMP AND BASIN SISTER SHALL BE ALL INCLUSIVE. CONTRACTOR SHALL PROVIDE AND INSTALL FULLY OPERATIONAL SYSTEM MEETING ALL CODE REDUIRD EHIS o CONTRACTOR SHALL PROVIDE SHOP DRAWING FOR APPROVAL PRIOR TO CONSTRUCTION. p PUMP MALL BE DUPLEX PALO SUBMERGIBLE MODEL 612 -15, 1150 RPM, 15.0 HP (YIN). 3 PHASE, 89' WPELIER. UL APPROVED CHI, ON. 1 OR EOUVAENT: CAPABLE OF PROOA7N0 865 GPM maw WITH 18' TOTAL DYNAMIC HEAD. CONTRACTOR SHALL VERIFY VOLTAGE AND ELECTRICAL REQUIREMENTS. EXACT DI50ARGE MONO. PUMP PRUNE CO FIXIRAR011 MAY VARY NORTH EFFLUENT PUMP AND BASIN DETAIL NOT TO 5CxE 2 -3' EXTENAL 994 CHECK VALVE OR FINAL 2 -3' GTE VALVES I��I�Wi 3 'LJ,JIP • 3' 740 PRE5 COUPLE 05 L r DISCHARGE 3' UNION TAT TEE WET WELL PLAN TYPE 1 - 72' SAL MH OR 051004EN7 ROf 10 SCALE VAULT MODEL 233-IA GENERAL NOTE MDING AND 040±1 INCA OF DC:NATIO S REQUIRED. SUBMIT SHORING AND DEYA1FRRC PLAN FOR OPER APNOEA PRIOR 10 PISTAU.ADON. CONTRACTOR SHALL wcwog NO CENTERING. SHALL DUPE al6JFTGTON5 MESE ITEMS ALL PROVISIONS FOR SHORN A 500±4615 ELECTRICAL PERMIT 5 MOUND. THE CONTRACTOR 91611 BE RESPCNORE FOR OBLONG TH5 PERMIT MID 00144= =sm. POWER TO TLS FAMSI1Y. BD SHALL NCLUDE (XW1FICOONS OF TLS REM I01I09 THE TIMOR 91ALL BE DRY AIR FILLED, 5051140 NM INDUCTION SHOL TYPE, REM DE904 B. THE STATOR WINDINGS SHALL BE 1RPLE DIPPED Alm BALED IN CANS F VARNB1 MID INSULATED WITH MOISTURE RESISTANT cuss F D6BATTON. THE STATOR SHALL BE HEAT-9104K REED DIM THE MOTOR H0URNG TO NOME ACCURATE ALIGNMENT AND MXM1M HEAT TRANSFER *101 THE MOTOR HOLING IA. APPROVED AS ESPL09014-PR00F FOR OPERATION IN A CLASS l DIVISION 4 GROUP D HAZARDOUS LOCATION. THE MOTOR SHALL BE RAGED FOR CONITRUINS DUTY SERVICE (91BMEOOE0). AND CAPABLE OF SUSTAINING TENT (10) STARTS PER FOUR. WITH A INDIUM OF 1.15 SERVICE FACTOR, AT DESIGN PONT. THE MOTOR IDA= TEMPERATURE 94). NOT EXCEED 10500. THE MOTOR SHALL BEN ADDIG ACROSS WE MITRE AR00PMED OPERATIC RANGE OF THE DS= CUHVE WITHOUT USE OF THE SERVICE FACTOR. MOTOR ENCIDSURC THE MOTOR 0gA91RE SHALL 8E OF A5M A48. CUSS 300, CLOSE -GRAIN OAST IRON CO61RUCT10N, WITH SMOOTH SURFACES MOD OF IRREGUARRIES AND BLOW HOLES ALE ADJORNG 5£00016 OF THE MOTOR ENCLOSURE SHALL BE JOINED AND SNEED WON A001RIOFLY IMPEND RABBIT JOINTS WITH LONG OVERIPM AND PITIED VIM BUNA -N b' -RODS TIE COMBED METAL. TO METAL OVERLAP CONTACT AND '0'- RING SEAL COMPRESSION SHALL 090E WATERTIGHT OREGON TO 85 FEET OF 9184FR0010ES G01 MOTOR SHALL BE UL (UNDERWRITER LABORATORY) APPROVED AS EXPLOSION PROOF FOR OPER/DOG IN A 0A551. DNS CH l GROUP D HAZARDOUS LOCATION. ELECTRICAL GABLES TEE MOTOR AND SENSOR CABLES SHALL BE 25 FEET LINO (ORIGAMI.: FEET a c0a�)c OF CONNN101S IA6Pl10ED CABLE THE CABLES SMALL BE OF HEAVY DUTY. HARD SERVICE TYPE AND SHALL HAVE MLAR -CO DUCLOR STRANDED COPPER LFA00 AND TYPE SO* NEOPRENE J60007 D PORTABLE GABLE RATED AT BON BOCC. CABLE EMTUY: IRE POWER CABLE AND CAP ASSEMBLY SHALL BE DESIGNED TO PREVENT MOISTURE FROM mum THIGms THE GABLE ASSEMBLY EVEN *14534 THE CABLE JACKET HAS BEEN PUNCTURED. POWER AND CONTROL CABLE ENTRY INTO THE LEAD CONNECTION CHAMBER STALL INCLUDE BL1NA -N 404414 NIS EPDXY SEALED LEADS, AND BUTT 5RICED CONNECTORS FOR POSITIVE MDaTURE SEALING. COMPRESSOR TYPE FITTINGS OR CONNECTORS ALONE SHALL NOT BE CONSIDERED EQUAL_ JUNC104 CNAMBFJt THE CABLE ENTRY JUNCTION CHAMBER SHALL PROVIDE FOR WIRE NUT CONNECTION OF THE POWER CADE TO THE MOTOR STATOR LEADS THE AUXILIARY SIGNAL CABLE SHALL ALSO BE CROW BY CORE. NUT 10 THE MOTOR ENDING THERMAL AND MOTOR SEAL MOISTURE SENIOR LEADS. MOSTBE PROIECUON SYSTOD OWL (2) MOISTURE SENSING PROMS SHALL BE PROVIDED THAT EXTEND FROM TIE MOOR NAM INTO THE CL CHAMBER BETWEEN THE OVER AND OUTER SEAL THE 015104 MALL BE OE9CNED TO MIEN THE PRESENCE OF MOISTURE IN 111E 00. CHAMBER SEGUED THE OUTER SEAL FAO, AND ALSO IN 111E MOTOR CHAMBER PRIOR TO REACHING TE BEARING OR STATOR ASS MBIIF:i. ACTOR SEMEN THE MOTOR STATOR lE]PERNIK SHALL BE CONTOT000SLY ROOD:RED Br TWO (2) LOW RESISTANT 9MBTALUO (N.C.) NORMALLY CLOSED THERMAL NOTCHES EMBEDDED IN THE STATOR WINCONS. 1EIESE RENAL SENSOR SWITCH= SHALL BE USED AS ADDITIONAL SUPPLEMENTAL MOTOR PROTECTION AND SOU. BE WIRED 04 SERIES WITH PA EEO OVERI040 PROIECTOI Roam BY 1HE MOTOR SORTER IN THE COPTIROL THE MOTOR 9HML ALSO SE PROVIDED 871H A 1MDO4 PROM S07SO4 DS= THE 1YT0 M ONIME- 506240 PROBES SHALL BE MONIED IN THE OIL -FILLED SEAL MANN AND -DETECT TEE PRA ON OF CONDUCTIVE LI0110, NCH PASSES THE PROW LOWER SEA UPON DETECTION THE SENSORS 94111 ACTUATE A PANEL MOUNTED RELAY. WHICH AA. PROVIDE THE OPERATOR W1114 A VISUAL INDICATION OF WPOME N0 SEA 7)0555. 94I T: THE PUMP AND MOTOR SHAFT SHALL BE OF ONE PIECE. EXTRA HEAVY. HIGH 575045114 009004. AI9 -416 OM CHROME STAINLESS MM. SEWING 811)4 NIGH TENSILE STRENG71. THE SHAFT SHALL BE OF SUCH DE5171 TO PROVIDE 706 MNDUN OVERHANG TO REDUCE SHALT DEFLECTION MD PROLONG BEARING 11FA. BEAMS THE PUMP Mm MOTOR SHAFT SHWA. ROTATE ON TWO PERMANENTLY ENTLY LUBRICATED FOUL BFAFO GS TIE UPPER BEARING SHALL BE OF SINGE ROW. DEEP GROOVED BALL MAR RO TYPE THE LOWER BEARING SHALL BE OF SOLE ROW. DEEP GROOVED BALL BFA INCj TER LOCKED IN PUCE TO mums now LOADING. THE BEARINGS SHALL BE RATED Al A MORON 8-10 BEARING LSE G 17,500 HOURS AT DESIGN LOADS UPPER SCOPE: THE COMPACTOR SHILL F'UROSH AND INSTALL AS SINN ON THE PLM6 AND DESCRIBED IN AND LOWER BAIL BEAR01GS SHALL BE PFRYANERiLY LUNGED =I HIGH TEMPERATURE THESE APECFICAIIONS. OE DUPLEX CENTER -HOE SUABLE NON -CLOG WASTEWATER SYS= NH GREASE SLIDE RAIL UFT -OUT FEATURE MOUNTED INSIDE A 60 INCH DIAMETER BY INCH DEEP CONCRETE WET WELL THE PUMP(S) SHALL 8E PACO MODEL ODSG OR Off- APPROVED EQUAL THE CONIRAL.TOR /"MECHANICAL SEAN EACH PUMP SMALL FE PROVIDED 11111 A TAADOE NEOWOGL SHAFT MALL FURNISH ALL VALYINC PIPING. ACCESS PATCHES, LEVEL SENSORS AND MOOR CONTROLS SEALING SYSTEM. OPERIOIG INDEFE?DFITLY. NECESSARY TO PROVIDE THE OWNER WITH A FULLY OPERATIONAL SYSTEM. C0IERAL• EQUIP/DM FURNISHED AND INSTALLED BY THE CONTRACTOR UNDER THIS SECTION SHALL BE F,684206.1ED, ASSEMBLED, ERECTED AND RACED IN PROPER OPERATIC COMMON IN FULL CONFORM WITH CRAWRG5, SPE0FIG1066• ENGINEERING DATA, INSTRUCTIONS, MD RECOMMENDATIONS OF 11E W EARER MANUFACTURER. DE7INTON OF TOGS AND OTHER HYDRAULIC C0N610QA11O6 SIWL BE AS SET FORM IN 1HE HYDRAULIC 057170E STANDARDS. RAP PERFORMANCE SHALL BE STABLE AND FREE FROM CAVITATION AND NOSE THROUGHOUT THE SPECIFIED OPERATING HEAD RANGE THE DESIGN PERFORMANCE 91411 BE BASED ON A WEAR RING *01AL CLEARANCE IS GREATER. LESS 114614 OE IM. PER NNW OF *EMC RING DOMEIER, OR 12 MCS TOTAL. MTEEMLS CASING CAST IRON AIM A48 CLASS 30 CASE WEAR RISC CAST IRON ADM A48 CLASS 30 (OPTONAL. 41655) IMPELLER CAST BON ASAP A48 CLASS 30 *70.1ER WEAR RING (OPTIONAL 41655) SHAFT ASI 41655 BEARINGS DEEP GROOVED BALL DISCHARGE ELBOW CAST IRON AS1M A48 DAM 30 06WARGE GLADE CAST OON NM M8 0A55 30 RAP CONSTRUCTION CASINO OMAN THE PUMP VOLUTE CASTING SHALL BE OF HIM SBENGM A5T1I A48, CLASS 308. CLOSE GRAN CAST 004, SINE PIECE NON-CONCENTRIC O E N, WITH SMOOTH CONTOURED SURFACES AND MILD PASSAGES CAPABLE OF POND ANY SOLID THAT PASSES THROW THE 047 )55 THE VOLUTE CASTING SHWA BE CAPABLE OF WT114ANOD4 THE NORMAL OPERATING PRESSURE SURGES AND HYDROSTATIC TEST PRESSURES OF A 14041,1I01 1.5 TIMES THE FULL DINEEER OPEIIER SHUT -0FF HEAD THE VOURE SHALL BE 0ESORED TO SUPPORT THE ENDRE OPERATING WEIGHT OF THE MOTOR ROGATION. ASSEMBLY ONCE LOWERED INTO PLACE AND CONNECTED TO THE 06046000 0.54* ASSEMBLY. SPELLER THE IMPELLER SHALL BE OF OE -PIECE ASAP M8, CUSS 308. 0.05E GRAN CAST WON (FULLY ENCASED, PEPLUM DE9GIL THE DWELLER SHALL BE OF 604 -0D0 DESIGN. MIN FARCE QOM CON1WRS, *1010.11 ACUTE TURl6, FREE OF B10NH0F5 AND IMPERFECTIONS. THE LARGE FIFE PASSAGES SHALL BE CAPABLE OF HMNOING SOLIDS, FIBROUS MT7IALS, SLUDGE MID OTHER MATTER NORWAY FOUND IN CONVENTOR& *15140TER APPLXAT1016. THE OPEEIER SRN BE OF 8931 -VASE DESIGN WITH NO4 EFF0060111W000NUT A BROAD -BALD OPERATING RANGE CAPABLE OF PASSING A 60DNM 3 040H SPHERE. SINGLE AND MULTI -VANE WPE1146 SOU. BE CAPABLE OF FIELD IMMLNO AND BALANCING TO MEET AC1WL SITE SPEC7lC COMMONS. THE IMPELLER HU8 SHALL BE ACCURATELY SUP FITTED MID KEY' DRNON TO THE 60108 SHAFT. THE OPOIER MALL BE SECURELY ATTACHED TO THE SHAFT BY MEANS OF A L0001G WASHER MD IMPELLER SINEW OF A31-304 STARLESS SIM. *CAR FANGS: ME PUMP VOLUTE SHALL BE FATED vas' A (CAST 8014 41655) CASE WEAR RING TO PROVIDE 5771040 SEALING BET*EEIN THE IMPELLER AND VOLUTE THE CASE WEAR RING SHA1L. BE FULLY ADJUSTABLE AND SHALL BE R7TED TO THE CASE AT A SUITABLY MOONED RECESS AND SECURELY FASTENED NH 300 SERIES STAINLESS STEEL RECESSED SET SCRIPPS ACCESSIBLE FLOE THE SI= THE CASE WEAR RING SHALL BE OF FULL CIRCLE, DEEP SECTION DESIGN 10 PREVENT CLITORJON. (OPTONFL) THE 1676.18 SHALL BE PROVIDED *1111 A 41055) IMPELLER WEAR RING OF OS500WH GRAS MATERIAL 10 PREVENT GALLING. THE FULL CIRCLE WEAR RING DESIGN SHALL BE FASTENED TO A SLAT OS MACHINED SURFACE WAM 300 SERIFS STARLESS STEEL RECESSED SET 2050*S. THE UPPER MECARICAL SEAL (=MARY) SHALL HAVE A CERAMIC STATIONARY SEAL SEAT ROORNG AGAINST A POSITIVELY COVEN ROTATING - CARBON RING WRI01 FUNCTIONS AS AN INDEPENDENT SECONDARY BARRIER BL1*EO4 THE PUMPED Rllm Alm THE MOTOR STATOR HOUSING. SEAL TENSION 6 PRE -SET BY MEANS OF A SNAP RING THE UPPER MECHANICAL SEAL MALL RUN COMPLETELY IN AN OIL 8A1H SEAL RESERVOR. THE LOWER MECHANICAL SEAN PRIMARY) SHALL HAVE A (�MIIC, TIMMER 066505) STATIONARY SEAL SEAT RUNNING AGAINST A P 517NELY DAN0I ROTATING CARBON 1195 WHICH MICRON AS AN RDEP04EM PRIMARY BARRIER BETWEEN THE PUMP FLUID AND THE MOTOR STATOR HOUSING. SEAL TENSION S PRE -SET BY MOVE OF A SNAP ROD EXPOSED SURFACES ALL OPOSED SURFACES STALL FIRST BE CLEANED T17 HAM PRESSURE WATER OR S1FAY. GREASE AND OIL SHAH. BE REMOVED BY A SUITABLE SOLVENT CLEANER IWEDATELY F01OWW4 SURFACE PREPARATION. THE CLEAN METAL SURFACE SHALL BE GIVEN A STANDARD =FACE FINNED COAT OR MR -DRIED ALKYD RESIN TYPE ENAMEL CONTAINING ZINC CHROMATE RISE 08RBBNE PIGMENT. THE COMPLETED MATNG SHALL HAVE GOOD AC ESON AND A HIGH DEGREE OF RESISTANCE TO 60915 E, MXAUS AND CGS. RAI. .SYSTEMS THE DESIGN 07 THE RAIL DISCONNECT SriIM SMALL PERMIT THE EASY REMOVAL AND RON4051A1ON OF FfaW PUIP140 UNIT FROM THE WET WELL FOR INSPECTION OR SFAVICE WTNOUT DISDOMJECOG OR 05TRBO4 THE 060ARGE PIPING THERE SHALL BE NO NEED FOR PERSONNEL TO ENTER THE WET WELL EACH RAMP 91µL BE FITTED NH A GUIDE RAL BRACKET SEMELY FASTENED TO THE PUMP 060ARGE THE GUIDE BRACKET SHALL INSURE PROPER GUIDE RAL ALIGNMENT AND 01081511 OWING INSTALLATION OR REMOVAL OF THE PIMP UNIT. FOR FAIN RUMP, A CLASS 30B. CAST IRON 0604660E BASE ELKO WITH A LOWER GIDE RAL SUPPORTS. 94411 BE SECURELY MOUNTED 1O THE WET WELL FLOOR. INSTALLATION OF THE RAP MO ENGAGEMENT WITH THE 060WGE SLOW SHALL FE ACCOLPLL4RD BY TE 0081A*Mm WEAR LOIN OF THE RAMP. THE RAP DMHARGE 9401 MDOMTOYILLY CONEO7 WITH THE DISCHARGE ELBOW WHEN LOWERED 070 PLACE THE RAP 060ARGE SHALL BE PRODDED AS STA M) WITH A FETAL -TO-METAL SEAT. NO POTION OF TIE PIMP SHALL BEAR DIRECTLY ON THE FLOOR OF THE WET WELL. UMW MICE: EACH PUMPING PANT SHALL BE PROVIDED WITH A LIFTING (WA04. G&E) OF (GNYNO2,D. STANCE SIM) CONSTRUCTION. AND 07 ADEQUATE STRENGTH TO SUPPORT 1505 OF THE ERNE PUMP AND MOTOR ASSEMBLY *EIDR. 0BYMLA1101Q ME 041ALUT%IN OF THE PAINING ECA PYOI7 SINN/ BE IN A:MOROAN= WITH THE DRAWINGS MD MANUFACTURERS 01STRIACTO05. 411 0931 041 SHALL BE SUPPORTED AND 501RE.Y AN0DREO. NI NO SURE ALL Cd4ECTON6 ARE -RUMS AID TIGHT. ALL 00NS RUCTON DEBRIS SHALL BE REMOVED FROM THE S751E11 AND WET WELL PRIOR TO OPERATION OF THE WIPING EWPMEM. SWRTI4 AND FIELD ECM START -UP AND OPERATIONAL FIFID 1EST5 SHALL BE CONDUCED BY TIE PUMP MANUFACTURER'S FACTORY TRAINED STMTT -UP REPRESENTATIVE ME SALT -UP AND OPERATIONAL TEST SAIL BE CONCOCTED IN 111E PRESENCE OF 111E ENGINEER. OWNER OPERATOR PERSONNEL AND THE CONTRACTOR. FINAL SITE SPECIFIC LEVEL CONTROL AD USTME1IS MALL BE HIDE TO ENSURE PROPER FUNCTIONING OF THE 5151 L M,1 1 1 a i A ICI �I N 11111 0 o Z N W X 7 Q LL _ cv z Q O CV CO Z z 0 460 0000 eV 1 I 3 N N §1 • n N c0 Yvv g STORM DRAINAGE AND WATER QUALITY IMPROVEMENTS PLAN NOTES AND DETAILS INLET BAY INLET PPE BEE NOTES 5461 ALTERNATE P99 LOCATON (TYR 2413 PRAMQ AND COVER UYP1 BCE NOTE 4) ROW SPREADER 2 0.\F Law ��j\\•��C�\�a\1�jvLriJ:wy��rJ STOIONILITR FILTRATION BAY CARTRIDGE OW) COUPLING (0 CONRACTO) 22 NOTES 540 8' x 22' STORMFILTER - PLAN VI O 1 3' A 9 (ROWAN) ACCiSS PATCH BEE NOTE 4) 1. ?�fJ 2.■ 11•1P1'1 PERMANENT POOL 2008 CONTEO9 BLan.meurBLl>m1. COMMo STORM1NATER SOWTIONS- anshiftlalMor DS9IPATOR CARTRIDGE (TIP) UNOH.D 4 TNT NOR 2) MMAMFOD 8' x 22' STORMFILTER - SECTION VIEW uYENelms OUTLET PPE OH NOTES 546) GRADE ONG ITYR 4'-6' WN ME NOTE 7) 8' x 22' PRECAST STORMFILTER PLAN AND SECTION VIEWS STANDARD DETAIL sTC•J1a':DQ.arOM 0S700Wawa.7S 7 }2. 732I1a 7, en W. 01 111.5. Im Mae jl MTN.S 1.0.6 GENERAL NOTES I) STORANLTER BY MARCH STORMWATER 90WTIONg, PORTLAND. OR M00)546-4667: 9GFE0RC4j44 ME (877) 907-867C; UMMICUM, MD (066) 740-3310. 2) TATER CARTRIDGE(5) TO BE SIPHON- ACTUATED MID 50.0.Q KING. 5TAND4RD DETAIL DRAWING 5770W5 MAXIMUM NUMBER Of CAROBp6E9. ACTUAL NUMBER REQUIRED TO DE 5(90T1(D ON 577E PLANS OR N DATA 7A012 801OW. 3) PRECAST VAULT TO BE CONSTRUCTED N ACCORDANCE WWII A5TM C657 AND 0858. DETAIL DRAWING REFLECTS AMA. DIMENSIONS AND CONFIGURATION Or STRICTURE WILL BE SPICA. ON PRODUCTION 1410P DRAIL. D901GN INTENT ONLY. 4) STRUCTURE AND ACCES8 C0y93S TO MEET AA5MTO 11-20 LOAD RATING. DOORS RATED FOR INCIDENTAL TRAFFIC ONLY. 5) STORAWTE8 REWIRES 2.3 P@1 OP DROP FROM INLET TO OUTIE1. P LESS DROPS AVNLABE, CONTACT O0NTECn STORMWATER 6) INLET AND OUTLET PIPING TO DE SPECIFIED BY ENGINEER AND PROVIDED BY C0N1RA0OR. PRECAST 5TOR6YILTER VAULT EQUIPPED W7N canal CORED OPENINGS OR KNOCKOUTS AT INLET AND OUTLET LOCATIONS. 7) PROVIDE MINIMUM CLEARANCE FOR MAINTENANCE ACC905 9 A 911AUDWER SYSTEMS REQUIRED. CONTACT CONIEOI STORMI0ATER SOLUTIONS FOR OTHER OPTIONS. 8) ANTI-FLOTATION BALLAST TO BE SPECIFIED BY 0IGINE7R AND PROVIDED BY CONTRACTOR 0 REQUIRED. BALLAST TO BE 5ET ALONG ENTIRE LENGTH OF BO(f SIDES OF VT STRUCTURE. 91 ALL STORMFIITERS REQUIRE REGULAR MAINTENANCE. ROM TO OPERATION AND MAINTENANCE GM:T UNES FOR MORE INFORMATION. 8' X 22' PRECAST STORMFILTER DATA STRUCTURE ID WATER QUALITY FLOW RATE (Q3) PEAK FLOW RATE We) RETURN PERIOD OF PEAK PLOW (- 19)-.._._. e OF CARTRIDGES REQUIRED CARTRIDGE ROW RATE (7.5 OR 5 6.1) MEDM TYPE (C50, PERU), 2PG, 2E0-PERU) APE DATA: INLET APC el 10.30 INLET APE 12 APE 0.66 40 7.5 2PG MATERIAL DIAMETER CPEP 8• OUTLET 8.0 RIM 14 0 14.0 CPEP O• LADDER 14./ CL RDA ANTI - ROTATION BALLAST 4017977090740820277104407777. 02008 CORED/ 8908 8RA*4r. 1E9110 WIOM i MEIGTIT OP )OP WIDM -.-I 8' 22 x 22' STORMFILTER - SECTION VIEW O 2 8' x 22' STORMFILTER - TOP VIEW v PLAN VIEW B - B Maswax.rmwaNeNT sra.1 6641 NAVE Mal.. Mau. ISO). 7. a.z lamitreS Ma. .o.00.ur,40m.aA•,.41.11EI4HIw al= aEO.E,•W CN4.e.y I.N W . Pre A. ea. ANAL B) aE 57 9797 E so NW: m1M7n1 1107 1 O PS dYOF.Mr 4. T3 SALL IETMI FLOAT DO10a07 gj 09F 1jp70j lOEBtff 1s1.NUPaOEWMIBSA10NwaR,vm OO13EbLIR ®aaNaY3EMN0T 14sUaam PE.711 SALE Wean. Uli®a®aN7olPmAw eRV41D 1 tam FnFinaa a CW7 a Yw77.E A.e Etrwar O-P MOW®. mp10WEE7OUWTprNOFRO 'lEOWERLROTFt6a0F.O wa a 17QaW.saWLH0711.0 7.10::0177 MEC. OF 00.0.4417 7.X14 YQ7.0 8101..7ERa 1/170150 0177 7.1071 pewee s:seraw RNOM41E(V1OI4aBLFIIH�BR 410p®170.YLL PROPRIETARY INFORMATION - NOT TO BE USED FOR CONSTRUCTION PURPOSES a+rl:.aa� r" "��..a ^.sra e.COMSmar.�rrrawwmrm0r. e a, �rr�aanrYSFSrw:aw" P.eWdraara.rer waawawa Aave area. ur • CONIECEr STONVI MATER SOWiIONS- STANDARD DETAIL STORMWATER TREATMENT SYSTEM e VORTECHS. MODEL 3000 4 97)177 ma. 1aOREaao ILL N a PATawU®A,. i DANAtt Bt 1pE0Orz NEo 0e403T.AAO NA.. AN UAW.. 01143p014 SIWICILETNMTpWLL DS DEIMOS BY TIE ROIBLLTpy omaxEER wITN ELEATIoN A.O W'D11W4N..PRO ®BY D06E01WCWW W9 ER aDU7RlPm [A 1 COMM° STORMWATER � �LU110NS_ D",< IearR >rr• •.ram `a1ttA0. wu was MEWS 8' x 22' PRECAST STORMFILTER TOP AND SECTION VIEWS, NOTES AND DATA STANDARD DETAIL m v =Ma 2 7.ENaR:awa4co7 OO•LNErE r m. MET W RZS.BEENmEa a as NaET P.1 MUST BE A momt INLET TO aW R[0U. ROW TNOER WLLY TO THE Soft pawn WWLE WALL FLOW CONIRDL wuA PLAN VIEW B - B ,. BiDIB�ATEI DEATH0Ra7a1F 1 .7. Wa.WWW TM r wall wrr. WV 47344.0 1770.4.. CU 113 1 Sala OWLL.COPITMBDNpE RS1A.0AN1BrN1Q11E 4. a.ia OMILIET BM�0.41W I . 7111 NM= at S Mara MUM am 01.17a • BEDSt aLN070E .17.1 12.11 170440771 a. Ea..RO.a®n EFMSra o- ooNamIRENI 74a WATFR 7.cW.amWLIW.4 NO MM. CONPO re We, IMSTRU:714...WIp O...813.1OlON Y 'AL'armee a� IOCAIa. W.1.448 ! MALL.O+E 1B1■01.1.1OR.SEane UST 1 L N4g9LR f A4.Fi AND PEP W I WTED CO.pE aygRD MRM n6Ey ROT WIMWEI .77•42 T TRF0'EYJWA7B7.ANON.D.aE Da4NEmR0rT.1a4ygA,a 40.0-107:17..B001074..EW7)4174a7N M.O. he pen ra sa PROPRIETARY INFORMATION - NOT TO BE USED FOR CONSTRUCTION PURPOSES ` CONim, a.maraP'0�°aaa�'...p41�.'�'i.m. s°�.:..iE�'rOMa� 4COOS,a.arOWSae.q.►e. a.Bee.saaaas .We..'•�a1. ,rO..WP.. aYf ..OYPVms:boSlIXCN A eAw..aaavNawx• FeavF �I.aia.lM .Y.�^ CONTECEI STORiNWATER SOLUTIONS. m.DI.410aba®I STANDARD DETAIL STORMWATER TREATMENT SYSTEM VORTECHS® MODEL. 4000 oATE1.4aa 1aCXE =NO.E IFS. MMQ.SIDYL UAW.. W. 41414 I mama. IpcvEaNBo GENERAL NOTES 1) S1ORA9)T9[ BY CONTE01 STORMWATER 90W(10N5. PORTLAND. OR (000 5464467: SCARBOROUGH. ME (577) 907-6676: UNT1110�J• I�, MD (066) 740 -1310. 21 f CA TR LTR(gDGE/5) TO BE SIPHON - ACTUATED AND 3EF402ANNG. STANDARD DETAIL DRAWING SNOWS MAXIMUM RUM= OP CARTRIDGES. ACTUAL NUMBER REQUIRED TO BE 5ROPLED ON SITE PLANS OR W DATA TABLE MOW. 3) PRECAST v011.T TO 89 CONSTRUCTED IN ACCORDANCE W7D14515. 0857 AND 0538. DETAIL DRAWING REFLECTS DESIGN INTENT ONLY. ACTUAL 0161151015 AND CONFIGURATION OP STRUCTURE WEL BE 9MOWN ON PRODUCTION 51100 DRAWING. 4) STRUCTURE AND ACCESS COVERS TO IT AASMTO 7420 LOAD RATING. DOORS RATED FOR NOOERAL TRATC ONLY. 5) STp01 0LTER REQUIRES 2.5 PELT Or DROP PROP INLET TO OUTLET. IP LESS DROP IS AVAILABLE CONTACT MARCH 5TORMWAT9R 50LL19077. Q INLET AND OUTLET MING TO 8e 5P[g0IED BY MOWER AND PROVIDED BY CONTRACTOR. PRECAST ST'ORMPLLTER VAULT 7) ML1D..1M ER CORD OP901C-0 OR IWCOILO)I5 AT INLET AND OUTLET LOCATIONS. FOR 1.4ADDISIANCE 5TORANATER 501UTK NS FOR 0799 .IPA � SYSTEM S RLELIIRED, CONTACT CONTEQt 0) ANTLFIOTATION BALLAST TO BE SPECIFIED BY NON= AND PROVIDED BY CONTRACTOR. IF RECOPIED. BALLAST TO BE SET ALONG ENTIRE MGR 00 BODI 54990 OF THE STRUCTURE. 9) ALL STORW ILIER5 REQ4LC REGULAR MAINTENANCE. REFER TO OPERATION AND MAINTEANCE 6WD917RS 1 7R MORE INNOR mAT7O1. DOW1.1001 WALL RE BA W PANEL VAULT STORMFILTER - SECTION VIEW O 2 SCW I I'-G° X 30-6' PRECAST PANEL VAULT STORMFILTER DATA STRUCTURE 49 WATER DUAUIY FLOW RATE (65) PEAR FLOW RATE Ws) RETURN PERO01 OF PEAK PLOW 0.) e 00 CAR(RID690 REQUIRED 1.59 1 CARTRIDGE FLOW RATE (7.5 OR 15 NA N MEDIA TYPE (CEP, FERUR, 2PG, 2E0 -PERLL APE DATA IE 1 MAMBA. DIAMETER' 0S6 QEP I r INLET 710E • INLET PIPE 12 OUTLET FM 16,0 /O 7.5 2PG I 6.08 CPEP - I•r ROW UDDER PERIMETER DRAIN No(7y9FCOAL REQRRUICN(S: 241 1/2' PANEL VAULT STORMFILTER - TOP VIEW 0200BOOREW Balm. S`RMWKIER PANEL VAULT STORMFILTER - PLAN VIEW O 1 ICI PANEL VAULT STORMFILTER - SECTION VIEW O 1 02008 CONTECH Ita'm.a. Bold. STORMWATER m.m.41.:araa OWi1pN5_ DIE NoINWgnr..ODaYf W M16I Y BAOLb. ! S.707.BS7. as 6.027..0 rC.44 007. r 5.1)43X. W.7m5 Maw 11'-8' x 38'-' PRECAST PANEL VAULT STORMFILTER PLAN AND SECTION VIEWS O STANDARD DETAIL or.v..m 1f- ....aa .aa...cv„m.A.W6u sna.eNAW I0®aa YESNO STIAMUSItiMMAGISper ae795, US . 07.77..W. c m wGa.* a SA3V3X, oat us A.a rows, nap raw 11'-6' x 38'-6' PRECAST PANEL VAULT STORMFILTER TOP AND SECTION VIEWS, NOTES AND DATA STANDARD DETAIL NFL.. I N0ae. W. I Wawa V.1.m.4Na,L (1Wa4We [DECO. 2 iT 8 Jo- 2 l 0 0 0 8 alp a) O CES W 5 T -2OFr WALL MA LYY 10 PROTECT IMPROVEMENTS 2:1 SLOPE SHOWN MAYBE UKELY 10 IOFFSITE MPt A C9R POWER POLE SEE TEMPORARY EROSION AND SEDIMENTATION CONTROL PLAN YAWN SHT CZ C4 FOR PEW U1.91868 PAIL . VAULT STORIA LIEN ESTIMATED BOTTOM OF EXCAVATION ESTIMATED TOP OF EXCAAVVATTIIOI4/PAVE /DR EXCAVATION FOR PEW VVOORTE IE MODEL V4300 - T PERIMETER OF EXCAVATION AREAS .LINK ,FENCE SEE tUTYPE.2- w•. t s_ --410PoIB WALL MAYBE UNELY TO impRomeas STORM LIFT STATION PPM. AJ TO RNER 1 32' C 01 -1.77 - FLOOD ELEVATION CO - 11.91' ORDINARY FAA WATER MAR( - 8.01• -io z:1 rn1. MAX SLOPE A - - --7 O .: -9(74) � -SDIN. TYPE 2 Ya• A ° . a 0 • \ \ \°SHORE NA SUPPORT AS NEEDED TO 0\ 9.. . {ANT DURING vW.AVATIQN FOR MY CONNECTION 4 a2!'SD- ° SEAM -A \ \\ a /GUARDPOSTS 00-8(72) l�l ° 4 4 da 1 IB' 01 CuLVEIT 4 0 STOCINITIE AREAS 999 OF T < \ EXISTING BUILDING FOOTPRINT AREA- •16.560 SOFT. BOG. HOOT. 13' AWE FF. COAL RTES 1. SEE 91991 CI FOR MOITANAL NO1E5 AND WtarRUCR0N SEQUENCE 2. CONTRACTOR SHALL ASSURE THAT ALL NECESSARY PERMITS HAVE BEEN 080ANEO PRIOR TO COMMENCING WORK 3. GENERAL CONTRACTOR FALL SUBMIT DE-WATERING AND /OR SHORING PLANS TO OWNER FOR APPROVAL. ALL WATERING 911Iµ1 BE DISCHARGED TO NNE SANITARY SEWER OR IEMPCPPAR1 STORED IN TAW ORME 4. CONTRACTOR IS SOLELY RESPONSIBLE FOR SAFETY AND FOLLOWING ALL SAFETY REELJI EIIII9 5. APPROXIMATE EXCAVATION PAS ARE SOWN BASED UPON 2' It1 V SLOPES, SUBJECT TO CHANGE AND TO BE FIELD \ERRED (REFER TO SOILS REPORT FOR commons AND CONFIRM DCAVATON AND RECOMWACIION LOWS W /GFAIEPARICIL ENGINEER). TEMPORARY AND PERMANENT EXCAVATIONS INCLUDING WORM FOR THIS PROJECT MUST MEET APPUCABLE GOVEWME9 SAFETY REGULATIONS AND ARE SOLELY THE RESPOISQDTY OF THE CONTRACTOR B. SAL ENGINEER 914111 BE ON-SITE WRING =AVATAR OPERATIONS 10 MATERIALS, ENGINEER SNARL OBSERVE NA TEST EXCAVATED YAIFRIAL AS REQUIRED. CONTRACTOR SHALL VFDRA CO HIS AC )9 AFID RE30VAI. OF TWMES AND STOCKPILING TO ALLOW FOR TESTING. SAMPLING AND OFFSITE 09POAIOPI OF ALL DAMMED MATERIALS WRITE DISPOSAL SHALL BE AS PER A SEPARATE WORK PLAN BY 711E OWNER. SOIL STOCKPILES SW. BE SAMPLED BY ALEC EARTH t 0N9WO N ENOL ANC 11335 NE 122ND WAY, SUITE 104 904549D WA 98034 PER THE •STOLID P9 5491240 PROTOCOL FOR NSIRAICE ARO AUCTION ION STORY WATER 0 PROVEMFNIS• DATED JULY 24 2007 OR LATEST AY9404040 1HFROF. 7. THE T 99 FAcILRIES S SHORN 0 194 WATER GOES BE CONSTRUCTED PRIOR TO ALL 4EAMD AND 0RADN3 /CONWE% AND N SUCH A WNNFR ORM ACE SYSTEM OR VITIATE APPLCABE WATER STANDVOS• & THE TE5CP 190011ES SHOWN ON TF4S RAN ARE 1110 MINIMUM REOUREMENTS FOR NG1OPANED STE O 441017ONS WRING THE CONSTRUCTION FOR UNE7OFCT WSTCRM AND A5 MG. ADDITIONAL SURD'S, REIOGlT10N OF GRIMES AID SILT FQ06, EEC.) AS NEEDED 9. THE MCP 190Ufl S 9Dµ1 BE INSPECTED DULY BY THE APPLICANT/CONTRACTOR AND WANTADIED AS RECES$ARY TO ENSURE THEIR CONTINUED FUNCTIONING AND OPERATION. 10. AT NO 11ME SHALL YORE THAN 1 FOOT OF SEDIMENT BE AIMED OR GREATER THAN 2011 OF BASIN CAPACITY BE AL1DWEL TO ACCUMULATE AMIN A CATCH BASIN. ALL CATCH BASINS AND CO9NE01HCE LINES SMALL BE CLEANED PRIOR TO PAVING THE CLEANING OPERATION SHALL NOT FLUSH SEDIMENT TAM MATER NRO THE DOWNSTREAM SYSTEM. 11. WASH PADS PER CRY STANDARD& SHALL BE INSTALLED AT THE BEGINNING OF CONSTRUCTION AND 114INTAINED FOR THE DURATION OF THE PRCuECF. ADDITIONAL MEASURES MAY BE REQUIRED TO EN41RE THAT ALL PAVED AREAS ARE KEW CLEAN FOR THE DURATION OF THE PROJECT. 12. AS CONSTRUCTION {MOMS AND UNTECPECT9 SEASONAL CONWWONS DICTATE AID AS NNE COY REQUIRES THE PO 91114E SHOULD ANTCPATE THAT YORE 1E3CP MFA91RE5 811 BE NECESSARY TO PROTECT 99:ICFN1 PROPERTIES AN0 ENSURE YNWUY WAXEN QUALITY FUR SITE RUNOFF. T SHALL BE THE RFSP0NSBO31Y OF THE PFR97199 TO ADDRESS DEFICIENT 1E3CP Comm= AND PROVIDE A ION& F4001RES, OVER AND ABOVE MNWLW REQUIREMENTS PRUNED ON THE APPROVED PLANS 01 LEP W v 0? CO = FLOW ELEVATION . 11 .91' r -20 T4 d a M.. . • 31. )1, <t43 . t. ° d rn 048494994499 M. WATER MARK E IIF WC 9.319 EXCAVATION FOR PEW sew TYPE 2.64 b • a °. a. PROPANE .. 'ENCLDSU, 4 • ° 11.91 1NFIF - a- •_ • 4 I ;IF a� .1 tl 08 -R /., . . a VEM1ENf 1 ° B 1YJ121. •Ak /. t1r�)' 9 , II - `� -N /�/l ^J �'�//��'��,����,', Su99001 AS NEIDED ° a•-/ ° a. Ate t ):% A�� /1,„. � 8� il .. SrogwCE ARFA5 _ __,,Irf„--... ... i�a 1!!!"0:10:„,.. I. 21 2.1 MOPE SHOWN DOWNSDPE 00990111044 �ARFA5 - TYPICAL EXCAVATION FOR NEW $T22' PFECAOT VAULTBEOEEMF;LTBt SEE SHY C2. C4 CONSTRUCTION KEYNOTES OPROVIDE TEMPORARY CATCH INLET PROTECTION PER MB DETAIL THIS SHEET 0 PREEN9 AND PROTECT MONITORING WELLS FROM DAM PACWA7RIN, PROLIX SANDBAGS AND /0R CONSTRUCTION FENCE AT CONTRACTORS OR10W ODOW/ELOPE PERIMETER 00 SOCI4PPE AREAS, PROVIDE AND MULL T30 -BAD• (CMOS BA6 0111 MULCH) TYPE FLIERS ON UPSTREAM SIDE OF sumacs (54440&6 MAY ADD SEDDBNE TO RUNOFF: USE SA9)8165 FOR RETENTION AND 040 -89107 AS FILTRATION. CITY OF TUKWILA EROSION CONTROL NOTES GRADING AND EROSION CONTROL NOTES 1. THE EROSION PREVENTION AND SEm9FM =TIROL (ESC) MEASURES ON NE APPROVED PLANS ARE MINWUM REA161EYQ11S 2. BEFORE BIMINNING ANY ERU5WN PREVENTION AND SEDIMENf� ACTVLTES, ESTABLISH THE cum= LIMITS. RETAIL CONSTRUCTION E?RR+WCE Alm INSTALL MEASURES. 3. BEFORE ANY GROUN0 D67URH410E OCCURS. ALL 001W15TREALI EROSION PREVENTION AND SEDIMENT CONTROL MEASAES (ESC) MUST BE CONSTRUCTED AND N OPERATON.NSFALL AND MAINTAIN ALL ESC MEASURES ACCORDING 10 THE ESC PLAL PPERWNENT SFABUZATEN 6 ESTABLISHER CONTROLS, SWILL REMIAPN N PACE UNTIL FINAL SITE CONSTRUCTION 6 COMPLETED ONO 5. FR011 MAY 1 11481131 SEPTEMBER 30, maim 'TEMPORARY RID PERMANENT COVER DISTURBED AREAS THAT MI REMAIN MARKED FOR SEVEN DAYS OR MORE YFASAiES 70 PROTECT 6. FROM OCTOBER 1 THROUGH APRIL 30, PROVIDE TEMPORARY NO PERMANENT COVER MEASURES TO PROTECT DISRIIBFD AREAS THAT WILL REMAIN UNMIXED D FOE TOW) DAYS OR WIRE N ADDITION TO COVER MEASURES, THE CONTRACTOR 94ALL• A PROTECT S)O1WIE5 AND STEEP cur AND FILL SLOPES IF UNBOWED FOR MORE THAN 12 HOURS & STOCKPILE. W4 9ME, ENOUGH COVER MATERIALS TO COVER ALL osmium AREAS ALL 5 ®m9ARFAS MID ALL AREAS THAT AU- MINN UNWIRED WEND THE WET SEASON (COMER 1 'THROUGH APRA- 30). 111114 7. FA1IDE TO MAINTAIN ESC 1EASUBES 94 ACCORDANCE WITH THE APPROVED MANTEIWICE SCHFDUIE WY RESAT 94 111E WORN 89140 =APENIDRED AT THE DIRECTION OF THE DIRECTOR AND ASSESSED AS A LEN ADANST THE PROPERTY WHERE SUCH FACILTES ARE & CURIA THE LIFE OF THE PROJECT. NE PER/ATM SWILL MADCAP IN GOOD CONDITION AND PROMPTLY REPAIR RESTORE OR OTHER PROTECTIVE DEVICES IN WALLS. CHM6, DAMS, OVER TOE,. VEGETATION. EROSION AND SD0047 CONTROL MEASURES, AND ACCORDANCE DRA WRAF APPROVED RAPE. 9. THE PEIOATTEE SHALL 109)09 THE ODYNSTREAM DRAINAGE FEATURES, AND SHALL. WT01 1)19 DIRECTORS APPROVAL REMOVE ALL SDIIFM DEPOSITION REAMA FROM PROIIECIRETATED WORK. 10. ALL WORK PERFORMED STALL BE PER APPROVED RATS AND 4P90FIGnKI/5 ONLY. THE MAITRE 6 REQUIRED TO YNNEN A SET OF APPROVED PLANS AND SPECIFICATIONS AND ASSOCIATED PEARS ON THE 308 SPE WPM SHALL BE PERFORMED IN ACCORDNE WON ALL FEDERAL, STATE, AND LOCAL LAWS 11. AS 1119 FIRST ORDER OF BUSINESS, THE PERMITTEE ESC SHALL INSTAL DDWN5TRENA TEmPORAR0 i 0 EROSION PREVENTION AND SEDIMENT CONTROL MEASURES PER TFIWORARY MEASURES ARE Rte, INSTALL AND ESTABlS14 THE UPSIRENI Esc 912451IRES OCCURS BEFORE THE 12. THE PURIM SHALL AT ALL MMES PROTECT WORE AREAS THEN BIKERS, AND ADJACE47 PRIVATE PROPERTIES AND PUBIC RIGHTS-OF-WAY OR EASEMENTS FROM DAMAGE DURING GRADING common THE PERYDT E SHALL RESTORE. TO TIE STANDARDS IN EFFECT AT THE ME OF THE ISSANLE OF THE PEmLO, WARNE AR'AS, THEE BUFFETS, AND PUBLIC AND PRNAIE PROPERTIES AND NPROVOENIS CAMAGED BY ME PERID11E91 OPERATIONS. ............. .. ........ SHAM. we pAN9�p�/eNO�n RPR�OTECTLW FROM RA9WATER N/RuNoFFA women TESTING, '�..d RACEMENT 07TH E0Mk0r4MN7ALa 6 - d DIGNEER - TYPICAL., H a ° 4 . / -------------------- 1. ...... GRA0940 AND EROSION CONTROL NOTES CONTINUED: 13. PERM7IEE SHALL ARRANGE FOR AND COMPLY WITH THE FOWN/RD: A NOTIFY THE PUBIC WORM93 DEPAR1MEHT WITHIN 48 noun FOLLOWWG INSTALLATION OF ESC MEASURES. 8. OBTAIN PERMISSION N WRITING FROM THE PUBLIC WORE WARNER PRIOR TO 100IYING THE ESC PLAN. C. MAINTAIN ALL ROM DRAINAGE MIENS. STORM WATER SYSTEMS, CONTROL MEASURES AND OTHER FACI ITES AS NE'NI4TED N THE ESC PLAN. D. REPAIR ANY SILTATION OR EROSION PROPERTIES AND DRAINAGE FACILITIES E INSPECT ACCORDING TO THE APPROVED ESC NSPECTON SCHEDULE AND MAKE NEEDED REPAIRS NIIFD1A1ELY.. /- WM RUNOFF SE WATER �� / MATH SEDIMENT ice^ z1TIRE MESH NTH RIM FABRIC ON TOP CATCH BASIN FRAME Mm GRAZE FILTER FABRIC MID WIRE MESH FLTER NOTE ALL FILTER FAB9C SHOAL BE CRAFT TOO NS OR EQUAL TEMPORARY CATCH INLET PROTECTION NOT TO SCALE 1 A 5l ;! mill z W Z I 1