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HomeMy WebLinkAboutSEPA E99-0007 - CITY OF TUKWILA / PUBLIC WORKS - WEST VALLEY HIGHWAY OUTFALLWEST VALLEY HIGHWAY OUTFALL REPLACEMENT OF PIPE & GATE VALVE ON OUTFALL 17600 WEST VALLEY HWY E99-0007 • City of Tukwila John W Rants, Mayor Department of Community Development Steve Lancaster, Director April 1, 1999 EXEMPTION FROM SHORELINE MANAGEMENT ACT SUBSTANTIAL DEVELOPMENT PERMIT REQUIREMENT Phil'Fraser City Of Tukwila Public Works 6300 Southcenter Boulevard Tukwila, WA 98188 RE: West Valley Highway Outfall Repair E99-0007 SEPA Checklist L99-0013 Request for Shoreline Permit Exemption Dear Mr. Fraser: This letter is to notify you that the proposed repairs to an existing storm system outfall are exempt from the requirement of a substantial development permit because the work falls under WAC 173-27-040 (2) (b) normal maintenance or repair of existing structures. In December of 1998 the pipe and gate valve broke and erosion due to stormwater runoff has accelerated rapidly. This situation leaves the neighboring roadway system and commercial properties unprotected from flood damage during higher stages of the Green River. The proposed repairs include replacement of the broken pipe, installation of a new lightweight valve and restoration of the disturbed area with riprap and native vegetation. All work will be above the ordinary high water mark and the installation will not require heavy machinery waterward of West Valley Highway. A Determination of Non -Significance was issued for the project on March 18, 1999. A Hydraulic Project Approval from the State Department of Fish and Wildlife will be required. No adverse impacts on the Green River are expected and the proposed development is consistent with the Policies of the Shoreline Management Act and the King County Shoreline Master Program. Steve Lancaster Director, Department of Community Development C:\Nora's Files\LETTERS\Outfall Exemption.doc 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • (206) 431-3670 • Fax (206) 431-3665 • • CITY OF TUKWILA DETERMINATION OF NONSIGNIFICANCE (DNS) DESCRIPTION OF PROPOSAL: Replacement of pipe and gate valve on outfall on the west side of West Valley Highway near 17600 PROPONENT: CITY OF TUKWILA PUBLIC WORKS LOCATION OF PROPOSAL , INCLUO-ING STREET ADDR 'b ��:I:F ANY: ADDRESS: 6200,: 0UTHCENTER BL PARCEL NO: 359700-0282 SECITWN/RNG: PPflJEf`T176110 ,WESTVALLE(;HI&HWA c WEST 'SIDE OF ROAD FILE NO: E99-0007 The City has` determined that ;t.iie proposal does not: have "a probable s.ignit icant' adverse iMpatt oh',tt e env1ronment. An environmental impact s,tatement_ (EIS) i nit r equn ed under" RCW 43.'2,1c-:030(2). This decision wt._. made after review "tt-..a completed eironnnent��1;'t` checklist and other" info--mat�1on.on file "r�'v with the leadagency.:. This information is av-ai labl.e >ro ;.the ip•ubl it .on'request. LEAD AGENCY. CITY OF:TUKWILA •,t•;k•k:4:4•k•k^4.,4,k•k:k•k•k•k,kk44i'ofkkkk44kkk kk'kk4 kk, kk:4•k,;=k•k4k`kkk4kkk:4k4kk`k k:t Fkkk: :kt4•k:4•kk:t•k Thi=DNS i as.sue;i unde1.97 11-L340(2),:-- comments must be submitted by_�u�.,_l_q9i ' .,',Thelead agencyy wi ll :not act ,an this prposai for-,2X-daysfrom thevd ttebe•l w 14 Steve Lancaster, Responsible Official City of Tukwila, (206) 431-3680 6300 Southc.enter Boulevard Tukwila, WA's 981St.; Copies of the procedures for `_.EPA'. appeals Department of Comnun'i.ty Development., City of Tukwila Department of Community /h John W. Rants, Mayor evelopment Steve Lancaster, Director MEMORANDUM TO: Jack Pace, Planning Manager -\\II'' FROM: Nora Gierloff, Associate Plannerr ' RE: SEPA — West Valley Highway Stormwater Outfall Repair DATE: March 18, 1999 Project File No. E99-0007 Project Description: The City of Tukwila plans to replace an existing 18 inch concrete outfall pipe that broke in December of 1998, causing erosion of the riverbank. The broken section of pipe and the existing flap gate will be removed and replaced with a new pipe and lightweight valve. Agencies With Jurisdiction: Washington State Department of Fish and Wildlife US Army Corps of Engineers Washington State Department of Ecology Comments to SEPA Checklist: None Summary of Primary Impacts: 1. Earth - Soil will be disturbed during the process of trenching, laying pipe and refilling. Erosion control and revegetation measures such as placement of coconut fiber mats, geotextiles, and planting of water tolerant native plant species will be used to minimize the effects of this disturbance. Approximately 12 cubic yards of soil will be excavated and removed from the site and 30 cubic yards of rock will be imported to restore grades and provide erosion control downstream of the outfall. 2. Air - There will be exhaust emissions from construction equipment during the project. Dust control measures in compliance with the Puget Sound Air Pollution Control Authority will be used as needed. The project will have no air emissions when complete. 6300 Southcenter Boulevard Suite #100 ° Tukwila, Washington 98188 ° (206) 431-3670 0 Fax (206) 431-3665 r • 3. Water — No material will be dredged from or filled below the Ordinary High Water Mark. No modifications to current collection and disposal of runoff will occur. 4. Plants — Approximately 800 square feet of shoreline will be disturbed by construction and will be replanted with native species. Current vegetation is primarily grass and himalayan blackberry. 5. Animals — The adjacent Green River is a migration route for Chinook salmon. The project is not expected to have any negative impact on salmon habitat. 6. Energy and Natural Resources - The project will require energy for construction equipment and for vehicles coming to the site. 7. Environmental Health - No environmental health hazards are anticipated. Construction equipment operation will need to comply with Tukwila's noise ordinance and no heavy equipment will be allowed waterward of West Valley Highway. 8. Land and Shoreline Use - The project will maintain the existing use of the site as a stormwater outfall location. 9. Housing - The proposal will not result in a change to the housing supply. 10. Aesthetics - The project is not subject to BAR requirements. 11. Light and Glare - The completed project will not generate light or glare. 12. Recreation - The proposal will not affect recreational facilities. 13. Historical and Cultural Preservation - The site is not known to have any historical or cultural significance. 14. Transportation — The proposal will protect the adjacent West Valley Highway arterial from possible erosion risks. 15. Public Services - The project will not increase demand on public services. 16. Utilities - The project will replace a failed outfall pipe with a new pipe to maintain the current stormwater system. Recommended Threshold Determination: Determination of non -significance. CITY OIUKWILA • Department of Community Development 6300 Southcenter•Boulevard, Tukwila, WA 98188 Telephone: (206) 431-3670 SEPA APPLICATION CHECKLIST FOR STAFFUSEONLY Planner: File Number: Receipt: Number:. Cross-reference files: 9 1- ° v i s Applicantnotified of incomplete -application: Applicantnotified.offcomplete: application:: Notice of application issued:.. A. NAME OF PROJECT/DEVELOPMENT: k -4;--u).1 1�-�,�\ c°- \r - B. LOCATION OF PROJECT/DEVELOPMENT: (address and accessory parcel number(s)) Quarter: Section: Township: Range: (This information may be found on your tax statement) C. PROJECT DESCRIPTION: D. APPLICANT: NAME: ADDRESS: PHONE: SIGNATURE: DATE: I, AFFIDAVIT Veistn&._ Notice of Public Hearing Notice of Public Meeting Board of Adjustment Agenda Packet Board of Appeals Agenda Packet flPlanning Commission Agenda Packet fShort Subdivision Agenda Packet OF DISTRIBUTION hereby declare that: fl Notice of Application for Shoreline Management Permit QShoreline Management Permit • • Determination of Non- significance Mitigated Determination of Nonsignificance Determination of Significance and Scoping Notice ONotice of Action Official Notice ^© Other Other .I2Ct LLU/'4 . Gt .SU,e t1 •L was mailed to each of the following addresses on I J / G( . Name of Project kW,bik.AL� S ignature File Number CCi 411 - U b0 7- Lp('1 -6013 \ 6141k • • 2/23/99 MAILING LIST FOR PROPERTIES WITHIN 500 L.F. OF WEST VALLEY HIGHWAY OUTFALL REPAIR PROJECT 1. PARCEL NO. 25-23-0490-33 ALCO INVESTMENT COMPANY ALASKAN COPPER AND BRASS PO BOX 3546 SEATTLE, WA. - 98124-3546 2. PARCEL NO. 25-23-0490-17 NORTH VALLEY PARTNERSHIP C/0 THE REIS GROUP 13221 SE 26TH STREET (SUITE M) BELLEVUE, WA. - 98005 (17600 W. VALLEY HWY.) 3. PARCEL NO. 36-23-0490-57 FORTE RENTALS PO BOX 816 RENTON, WA. - 98057-0816 4. PARCEL NO. 25-23-0490-70 CITY OF TUKWILA TUKWILA MAINTENANCE SHOPS 600 MINKLER BLVD. TUKWILA, WA. 98188 5. PARCEL NO. 25-23-0490-71 PACIFIC GOLF PROPERTIES 631 STRANDER BLVD. (SUITE G) TUKWILA, WA. 98188 6. PARCEL NO. 25-23-0490-57 PRINTING CONTROL 1011 ANDOVER PARK E. TUKWILA, WA. 98188 7. PARCEL NO. 25-23-0490-63 COSTCO #06 AHV EXP PAYABLES #2695000 PO BOX 34305 SEATTLE, WA. 98124-1305 (17700 W. VALLEY HWY.) (600 ANDOVER PARK E.) (1160 SAXON DRIVE) DOC 10.DOC CHECKLIST: ENVIRONMENTAL REVIEW/SHORELINE PERMIT MAILINGS ( ) U.S. ARMY CORPS OF ENGINEERS ( ) FEDERAL HIGHWAY ADMINISTRATION ( ) DEPT OF FISH & WILDLIFE ( ) OFFICE OF ARCHAEOLOGY ( ) TRANSPORTATION DEPARTMENT ( ) DEPT NATURAL RESOURCES ( ) OFFICE OF THE GOVERNOR ( ) DEPT OF COMM. TRADE & ECONOMIC DEV. ( DEPT OF FISHERIES & WILDLIFE FEDERAL AGENCIES ( ) U.S. ENVIRONMENTAL PROTECTION AGENCY ( ) U.S. DEPT OF H.U.D. WASHINGTON STATE AGENCIES ( ) DEPT OF SOCIAL & HEALTH SERV. (p) DEPT OF ECOLOGY, SHORELIND DIV (.0.,:4 DEPT OF ECOLOGY, SEPA DIVISION* ( ) OFFICE OF ATTORNEY GENERAL * SEND CHKLIST W/ DETERMINATIONS * SEND SITE MAPS WITH DECISION KING COUNTY AGENCIES ( ) K.C. PLANNING & COMMUNITY DEV. ( ) K.C. DEPT OF PARKS ( ) BOUNDARY REVIEW BOARD ( ) HEALTH DEPT ( ) FIRE DISTRICT #11 ( ) PORT OF SEATTLE ( ) FIRE DISTRICT #2 ( ) K.C.DEV & ENVIR SERVICES-SEPA INFO CNTR ( ) K.C. WATER POLLUTION CNTRL SEPA OFFCL ( ) K.C. TRANSIT DIVISION - SEPA OFFICIAL ( ) TUKWILA SCHOOL DISTRICT ( ) TUKWILA LIBRARIES ( ) RENTON LIBRARY ( ) KENT LIBRARY ( ) CITY OF SEATTLE LIBRARY ( ) .0 S WEST ( ) SEATTLE CITY LIGHT ( ) PUGET SOUND ENERGY ( ) HIGHLINE WATER DISTRICT ( ) SEATTLE WATER DEPARTMENT ( ) TCI CABLEVISION ( ) OLYMPIC PIPELINE SCHOOLS/LIBRARIES ( ) HIGHLINE SCHOOL DISTRICT ( ) K C PUBLIC LIBRARY ( ) SEATTLE MUNI REF LIBRARY ( ) SEATTLE SCHOOL DISTRICT ( ) RENTON SCHOOL DISTRICT UTILITIES PUGET SOUND POWER & LIGHT VAL-VUE SEWER DISTRICT WATER DISTRICT #20 WATER DISTRICT #125 CITY OF RENTON PUBLIC WORKS RAINIER VISTA SKYWAY CITY AGENCIES KENT PLANNING DEPT ( ) RENTON PLANNING DEPT TUKWILA CITY DEPARTMENTS: ( ) CITY OF SEA -TAC ( ) PUBLIC WORKS ( ) FIRE ( ) CITY OF BURIEN ( ) POLICE ( ) FINANCE ( ) TUKWILA PLANNING COMMISSION MEMBERS ( ) PLANNING ( ) BUILDING ( ) TUKWILA CITY COUNCIL MEMBERS ( ) PARKS & REC. ( ) MAYOR ( ) CITY OF SEATTLE - SEPA INFO CENTER - DCLU ( ) CITY CLERK ( ) SEATTLE OFFICE OF MGMNT & PLANNING* * NOTICE OF ALL SEATTLE RELATED PLNG PROJ. ( ) PUGET SOUND REGIONAL COUNCIL ( ) P.S. AIR POLLUTION CONTROL AGENCY ( ) SW K C CHAMBER OF COMMERCE MUCKLESHOOT INDIAN TRIBE ' ( ) DUWAMISH INDIAN TRIBE ( ) SEATTLE TIMES 07/09/98 C:WP5IDATA\CHKLIST OTHER LOCAL AGENCIES ( ) METRO ENVIRONMENTAL PLANNING DIV. OFFICE/INDUSTRIAL 5,000 GSF OR MORE RESIDENTIAL 50 UNITS OR MORE RETAIL 30,000 GSF OR MORE CITY OF TUKWILA NOTICE OF APPLICATION PROJECT INFORMATION The City of Tukwila Public Works Department has filed applications for repair of a stormwater outfall pipe to be located near 17600 West Valley Highway. Permits applied for include: E99-0007 SEPA Environmental Review Checklist L99-0013 Request for a Shoreline Substantial Development Permit Exemption FILES AVAILABLE FOR PUBLIC. REVIEW The project files are available at the City of Tukwila. To view the files, you may request them at the counter at the Department of Community Development (DCD), located at 6300 Southcenter Boulevard #100. OPPORTUNITY FOR PUBLIC COMMENT Your written comments on the project are requested. They must be delivered to DCD at the address above or postmarked no later than 5:00 P.M., March 17th, 1999. You may request a copy of any decision, information on hearings, and your appeal rights by calling DCD at (206) 431-3670. For further information on this proposal, contact Nora Gierloff at (206) 431-3670 or visit our offices at 6300 Southcenter Boulevard, Suite #100, Monday through Friday, 8:30 a.m. to 5:00 p.m. Application Filed: 2/23/99 Notice of Completeness Issued: 3/2/99 Notice of Application Issued: 3/3/99 Preliminary Environmental Checklist WAC 197-11-960 Environmental Checklist • RECEVE FEB 2 3 1999 COMMUNITY DEVELOPMENT Purpose of Checklist: The State Environmental Policy Act (SEPA), chapter 43.21 RCW, requires all governmental agencies to consider the environmental impacts of a proposal before making decisions. An environmental impact statement (EIS) must be prepared for all proposals with probable significant adverse impacts on the quality of the environment. The purpose of this checklist is to provide information to help the agency, citizens, and other reviewers identify impacts from the proposal, to possibly reduce or avoid impacts from the proposal, and to help the agency decide whether an EIS is required. ENVIRONMENTAL CHECKLIST A. BACKGROUND 1. Name of Proposed Project: W. Valley Highway Outfall Repair (Part of the 1999 Small Drainage Projects) 2. Name of Applicant: City of Tukwila, Public Works Department' 3. Address and phone number of applicant and contact person: 6300 Southcenter Blvd. Tukwila, WA 98188 (206) 433-0179 Contact: Phil Fraser, P.E. 4. Date checklist prepared: February 23, 1999 5. Agency requesting checklist: City of Tukwila 6. Proposed timing or schedule (including phasing, if applicable): It is anticipated that this project will be advertised for construction in April, 1999. Construction will begin in June 1999, or as required by the Hydraulic Project Approval conditions, and should be completed within 90 calendar days. The exact construction timing or schedule will be determined as the design and permitting processes are finalized. 1 7. Plans for future additions, expansion or further activity related to or connected with this proposal: No future expansion is planned 8. Environmental information that has been prepared, or will be prepared, directly related to this proposal: None known. 9. Applications that are pending for governmental approval of other proposals directly affecting the property covered by the proposal: None known. 10. List of governmental approvals or permits that will be needed for the proposal: City of Tukwila Substantial Shoreline Development Permit (exemption requested) City of Tukwila Flood Zone Permit Washington State Department of Fish and Wildlife Hydraulic Project Approval US Army Corps of Engineers Section 404, NWP 3 Washington Department of Ecology 401 Water Quality Certification 11. Brief, complete description of the proposal, including the proposed uses and the size of the project and site: The existing 18" Concrete outfall pipe broke in December, 1998, causing displacement of the pipe and gate valve as well as accelerated erosion around the failed pipe end. Currently, the neighboring roadway system and commercial properties are unprotected from flood damage during higher stages of the Green River. Also, the accelerated erosion has put the structure of W. Valley Highway, a major arterial, at risk. The project entails removal and replacement of an existing flap gate and approximately 10 feet of 18 -inch concrete storm drain pipe which has broken and displaced, causing erosion to the river bank. The flap gate will be replaced with a modern, light weight valve which requires no concrete work and is much less susceptible to creating the erosive situation observed at the current installation. All work is above the ordinary high water mark and no heavy machinery will be required waterward of W. Valley Highway for the installation. All disturbed areas adjacent to the pipe and outfall protection will be restored with appropriate native species. A copy of the preliminary plan is attached for review. 12. Location of the proposal, including the street address, if any, and section, township and range, if known; a legal description, site plan, vicinity map and topographic map, if reasonably available: The project site is located in the City of Tukwila, directly across from the 'Oak Barn' at 17600 W. Valley Highway on the west side of the road. A painted green stripe on the guardrail marks the outfall location on the bank. 2 B. ENVIRONMENTAL ELEMENTS 1. EARTH a. General description of the site (underline one): Flat, rolling, hilly, steep slopes, mountainous, other —Roadway Embankment b. What is the steepest slope on the site (approximate slope percentage)? The embankment slope is approximately 35%. Localized slopes due to outfall erosion are nearly vertical and less than 3 feet high. c. What general types of soils are found on the site (for example, clay, sand, gravel, peat, muck)? Specify the classification of agricultural soils and note any prime farmland. The soils appear to be a granular soil with cobbles, most likely place as imported embankment material for the original road construction. d. Are there surface indications or history of unstable soils in the immediate vicinity? If so, describe. No, except as directly attributed to the broken outfall pipe. e. Describe the purpose, type and approximate quantities of any filling or grading proposed. Indicate source of fill. Trench excavation and backfill will match original grades. Minor excavation will be required to install the new pipe section and placement of riprap will be employed to create a solid pipe foundation and provide erosion protection at the outfall. Approximately 12 cubic yards will be excavated and removed from the site and 30 cubic yards of rock will be imported to restore grades and provide erosion protection downstream of the outfall. All import materials will be from a state approved source. f. Could erosion occur as a result of clearing, construction or use? If so, generally describe. g. Yes, approximately 800 square feet will be cleared of vegetation for this project. Construction will be completed during the dry, summer months using appropriate erosion control best management practices and minimizing disturbed areas. About what percentage of the site will be covered with impervious surfaces after project construction (for example, asphalt or buildings)? No new impervious surface is proposed. h. Proposed measures to reduce or control erosion or other impacts to the earth, if any. Erosion and sedimentation will be controlled through the implementation of Best Management Practices (BMPs) as described in the King County Surface Water Design 3 • • Manual, and in accordance with City of Tukwila requirements. Disturbed areas will be restored with seed and suitable native plant materials following construction. A coconut fiber mat will and/or geotextile will underlie all disturbed areas prior to planting. Native plant species will be water tolerant, such as willow sp., red -osier dogwood, and ninebark placed at 2 to 4 foot spacing. 2. AIR a. What types of emissions to the air would result from the proposal (i.e. dust. Automobile, odors, industrial wood smoke) during construction and when the project is completed? Generally describe and give approximate quantities, if known. Minor dust and internal combustion engine emissions will be in the air only during construction b. Are there any off-site sources of emissions or odors that may affect your proposal? If so, generally describe. N o. c. Proposed measures to reduce or control emissions or other impacts to the air, if any: Best management practices will be implemented during construction activities to reduce and control dust and air emissions. These practices may include covering soil stockpiles, sweeping or washing paved surfaces, minimizing exposed areas, and using construction machinery equipped with standard mufflers. 3. WATER a. Surface: 1) Is there any surface water body on or in the immediate vicinity of the site, including year-round and seasonal streams, saltwater, lakes, ponds, wetlands? If yes, describe type and provide names. If appropriate, state what stream or river it flows into. Yes, the project is adjacent to the Green River. 2) Will the project require any work over, in, or adjacent to (within 200 feet) the described waters? If yes, please describe and attach available plans. Yes, the project is adjacent to, but entirely above the Ordinary High Water Mark. 3) Estimate the amount of dredge and fill material that would be removed from or placed in surface water or wetlands, and indicate the area of the site that would be affected. Indicate the source of fill material. No material will be dredged from of filled below the Ordinary High Water Mark. The extent of disturbance is approximately 800 square feet. 4 • • 4) Will the proposal require surface water withdrawals or diversions? Give general description, purpose and approximate quantities, if known. Temporary bypass of flows (if any) will be required to remove and replace this storm drain outfall. There is zero flow through the outfall pipe during periods of no precipitation. 5) Does the proposal lie within a 100 -year flood plain? If so, note location on the site plan. Yes, the approximate location of the 100 -year flood plain is shown on the attached plan. 6) Does the proposal involve any discharges of waste materials to surface waters? If so, describe the type of waste and anticipated volume of discharge. The proposal does not involve the discharge of waste materials to surface waters. b. Ground 1) Will ground water be withdrawn or will water be discharged to ground water? Give general description, purpose and approximate quantities, if known. No. 2) Describe any waste material that will be discharged into the ground from septic tanks or other sources (e. g., domestic sewage, industrial, agricultural, etc.). Describe the general size of the system, the number of such systems, the number of houses to be served, or the number of animals or humans the system(s) are expected to serve. Does not apply. c. Water Runoff (including storm water) 1) Describe the source of runoff (including storm water) and method(s) of collection and disposal, if any (include quantities, if known). Will this runoff water be discharged or flow into surface waters or ground water? If so, describe. This project is to repair an existing City of Tukwila storm drain outfall. No modifications to current collection and disposal of runoff will occur. 2) Could waste materials or toxic materials enter ground or surface waters during or as a result of this proposal? If yes, generally describe. No. d. Proposed measures to reduce or control surface, ground and runoff water impacts, if any: Appropriate BMPs will be installed to prevent sediment transport into the Green River. 5 4. PLANTS a. Underline types of vegetation found on the site: deciduous trees: conifer trees: x_ shrubs: wet soil plants: water plants: x_ other types of vegetation: alder, maple, birch, black cottonwood, other fir, cedar, pine, other blackberry, salmonberry, vine maple, other buttercup, rushes, sedge, grasses, other water lily, milfoil, eelgrass, other grasses, b. What kind and amount of vegetation will be removed or altered? Approximately 800 square feet of area will be disturbed by construction. Most of this area is currently disturbed by erosion from the broken outfall. Areas which are not disturbed are primarily grass and himalayan blackberry. c. List threatened or endangered species or critical habitat known to be on or near the site: The nearby Green River is a migration route for Chinook Salmon. d. Proposed landscaping, use of native plants or other measures to preserve or enhance vegetation on the site, if any: Disturbed areas will be restored with seed and suitable native plant materials following construction. A coconut fiber mat will and/or geotextile will underlie all disturbed areas prior to planting. Native plant species will be water tolerant, such as willow sp., red - osier dogwood, and ninebark placed at 2 to 4 foot spacing. 5. ANIMALS a. Underline any birds and animals that have been observed on or near the site, or are known to be on or near the site: x_ invertebrates: x_ fish: amphibians: reptiles: x_ birds: x mammals: insects, mollusks, other salmon, trout, bass, herring, shellfish, other frogs, salamanders, toads, other snakes, lizards, turtles, other songbirds, owls, hawks, eagles, heron, other deer, bear, elk, beaver, rabbits, rodents, other b. List any threatened or endangered species or critical habitat known to be on or near the site. The nearby Green River is a migration route for Chinook Salmon. 6 c. Is the site part of a migration route? If so, describe. The nearby Green River is a migration route for Chinook Salmon. d. Proposed measures to preserve or enhance wildlife, if any. Restoration will be with native plants to provide additional shade against the river bank. 6. ENERGY AND NATURAL RESOURCES a. What kinds of energy (electric, natural gas, oil, wood stove, solar) will be used to meet the completed project's energy needs? Describe whether it will be used for heating, manufacturing, etc. The completed project will not require any energy. Small amounts of gasoline and/or diesel fuels will be used in equipment during semi-annual cleaning of the project. b. Would the project affect the use (potential or actual) of solar energy by adjacent properties? If so, generally describe. No. c. What kinds of energy conservation features are included in the plans for this proposal? List any other proposed measures to reduce or control energy impacts, if any. None. 7. ENVIRONMENTAL HEALTH a. Are there any environmental health hazards, including exposure to toxicichemicals or hazardous wastes, risk of explosion or fire that could occur as a result of this proposal? If so, describe. Yes, accidental fuel or oil spills from the heavy equipment could occur during construction. This is not anticipated as we are prohibiting heavy equipment from the area waterward of W. Valley Highway. 1) Describe special emergency services that might be required. None anticipated. 2) Proposed measures to reduce or control environmental health hazards, if any: Repairs and refueling of construction equipment would be done away from the water courses and storm coveyance facilities. 7 b. Noise 1) What types of noise exist in the area which may affect the project (e.g., traffic, heavy equipment, operation, industrial, other)? None. 2) What types and levels of noise would be created by, or associated with the project, on a short-term or a long-term basis (for example, traffic, construction, operation, other)? State what hours noise would come from the site. Short term noise impacts from construction operations are anticipated during work hours (typically 7:00 AM to 6:00 PM) for the duration of construction. No long-term impacts are anticipated. 3) Proposed measures to reduce or control noise impacts, if any: Construction equipment will be equipped with mufflers and all operations will be in accordance with City of Tukwila noise ordinances. 8. LAND AND SHORELINE USE a. What is the current use of the site and adjacent properties? City right of way. b. Has the site been used for agriculture? If so, describe. No. c. Describe any structures on the site. None. d. Will any structures be demolished? If so, what? No. e. What is the current zoning classification of the site? City right of way. f. What is the current comprehensive plan designation of the site? Not known. g. What is the current shoreline master program designation of the site, if any? -Net-lcn6wt:1: U0.:BA L 'DC.; c,A.1A.rro.,.l 8 h. Has any part of the site been classified as an environmentally sensitive area? If so, specify. Not known. i. Approximately how many people would reside or work in the completed project? None. j. Approximately how many people would the completed project displace? None. k. Proposed measures to avoid or reduce displacement impacts, if any. None. I. Proposed measures to ensure the project is compatible with existing and projected land uses and plans in the area. N/A 9. HOUSING a. Approximately how many housing units would the project provide, if any? Indicate whether high, middle or low income housing. None. b. Approximately how many housing units would be eliminated, if any? Indicate whether high, middle or low income housing. None. c. Proposed measures to reduce or control housing impacts, if any: None. 10. AESTHETICS a. What is the tallest height of any proposed structure(s), not including antennas; what is the principal exterior building material(s) proposed? No structures are proposed. b. What views in the immediate vicinity would be altered or obstructed? None. 9 • • c. Proposed measures to reduce or control aesthetic impacts, if any: N/A 11. LIGHT AND GLARE a. What type of Tight or glare will the proposal produce? What time of day would it mainly occur? None. b. Could Tight or glare from the finished project be a safety hazard or interfere with views? No. c. What existing off-site sources of light or glare may affect your proposal? None. d. Proposed measures to reduce or control light and glare impacts, if any. None. 12. RECREATION a. What designated or informal recreational opportunities are in the immediate vicinity? None known. • b. Would the project displace any existing recreational uses? If so, describe. No. c. Proposed measures to reduce or control impacts on recreation including any recreational opportunities to be provided by the project or applicant. None. 13. HISTORIC AND CULTURAL PRESERVATION a. Are there any sites, structures or objects listed on, or proposed for national, state or local preservation registers known to be on or near to the site? If so, generally describe. None known. 10 b. Generally describe any landmarks or evidence of historical, archaeological, scientific or cultural artifacts of importance known to be on or near the site. None known. c. Proposed measures to reduce or control impacts, if any. N/A 14. TRANSPORTATION a. Identify public streets and highways serving the site, and describe proposed access to the existing street system. Show on site plans, if any. The site is adjacent to W. Valley Highway, a major arterial in the City of Tukwils. b. Is the site currently served by public transit? If not, what is the approximate distance to the nearest transit stop? Yes, distance not known. c. How many parking spaces would the completed project have? How many would the project eliminate? None. d. Will the proposal require any new roads, streets or improvements to existing roads or streets (not including driveways)? If so, generally describe, and indicate whether public or private. No. e. Will the project use (or be in the immediate vicinity of) water, rail or air transportation? If so, generally describe. No. f. How many vehicular trips per day would be generated as a result of the project? Indicate when peak traffic would occur, if known. N/A Proposed measures to reduce or control transportation impacts, if any. N/A 11 15. PUBLIC SERVICES a. Would the project result in an increased need for public services (e.g., fire and police protection, health care, schools, other)? If so, generally describe. No. b. Proposed measures to reduce or control direct impacts on public services, if any. None. 16. UTILITIES a. Underline utilities currently available at the site: electricity, natural gas, water, telephone, refuse service, sanitary sewer, septic system, other. N/A b. What utility service will be needed by the project? Who (which utility) will provide the service, and what utility construction will be required on or in the immediate vicinity of the site? None. C. SIGNATURE The above answers are true and complete to the best of my knowledge. 1 understand that the lead agency is relying on them to make its decision. Signature: Date submitted: 2/7.-3 iq 9 The following checked items are included with the Checklist: _x_ Vicinity Map _x_ Project Plans KPG, Inc. wvalley SEPA.doc 2/23/99 12 May 2, 1998 • City of Tukwila John W. Rants, Mayor Department of Community Development Steve Lancaster, Director NOTICE OF COMPLETE APPLICATION Phil Fraser City Of Tukwila Public Works 6300 Southcenter Boulevard Tukwila, WA 98188 RE: West Valley Highway Outfall Repair E99-0007 SEPA Checklist L99-0013 Request for Shoreline Permit Exemption Dear Mr. Fraser: Your application for maintenance and repair of a storm system outfall located at 17600 West Valley Highway has been found to be complete on March 2, 1999 for the purposes of meeting state mandated time requirements. The next step is for you to install the notice board on the site within 14 days of the date of this letter. You received information on how to install the sign with your application packet. Once you have installed the notice board post it with a laminated copy of the "Notice of Application" and the comment period will start. After installing the sign with the laminated notice, you need to return the signed Affidavit of Posting to our office. This determination of complete application does not preclude the ability of the City to require that you submit additional plans or information, if in our estimation such information is necessary to ensure the project meets the substantive requirements of the City or to complete the review process. This notice of complete application applies only to the permits identified above. It is your responsibility to apply for and obtain all necessary permits issued by other agencies. If you have any questions about these procedures feel free to call me at (206) 433-7141. Sincerely, Nora Gierloff Associate Planner 6300 Southcenter Boulevard Suite #100 • Tukwila, Washington 98188 • (206) 431-3670 • Fax (206) 431-3665 • • V .114 • he • JIM 7.3.41 7C. COCO Ik 36c: IO0 SA7.1xs Da - .4 J. •• • O• • 11e. .•••• 55 -IC' A42 - ti 3 .04'10'3'5 15. c.° \ \ \ 1047V.' ,;4L ?° ei(60 ILD•c) 41. LAI. 3 3.3 05, 721.04 41, ci 0 50 ,r7 74 Fib V 3113 T REN SP 346 - 79 I Iditctl Urr \A— \ .1 7907169001 - cvt,17 '54 1,1t. \ 533.17 ,/4J, 04, TU SP 88- 3- SS PC L . A .• 881180199 . — . 30 RO.ESAIT. .55.3 !I• • " '41 '41\1 11 CC P51, 3,2.,, 69 0 P. 14011, RP RAP IS NOT %CNN IN FUN VIEW FOR 0.AR1TY. 00120 510 PROFILE & EPICAL SECTION FOR RIP RAP 114811 0 5 10 20 30 PLAN 7.0 120 I GU 100 DISTING-GUARDRAL TO EXISIING GRCUND -, REMAIN -, \ . . 7... ....I'EF YAUEY 077.#!7Y. 100 1999 SMALL DRAINAGE U11 IIIIL-T0-.T75-CONULL 9. 0 FLAPGAIE o C- \ \ _ . _EDSTMG_IERC_P 5DP _. 0- - 1 APPROMA80 ll LOCADON OF D2STING TYPE 2 CB / NW w 91.9 60 GREEN RIVER 2/15/99 • - STAGE - 79.3 (ABOVE 0110) • - 0 --s- . , --- - 60 IN 2/99 PROFILE 0.15,5.1600,..? , .4 Ali' 7-,',. f. ,:!`:,'''T, ' 1,61,st.'17' L:_l.t. i! =so* ! 9'1 '• r • .",s ...twt....:....a: 11.00 1 .:1 i -' - ,-,---, \ aut 7.7:11 .11.-5'111-,,1 „Li f: . i 0,1 IS, g5I '.2 • • ' i °/ • ;ri. ' ir'3 1 '' . I Nee; ' M.., • I I I * I V 5895 SEE PUN 01.0 VICINITY MAP PROJECT LOCATION 17600 WEST VALLEY H1I00WAY 7/- RENEGETAll 05510.0600 AREAS & 1.071 SELECTED NATP,E aka -• . TO EXTENT OF COCONUT MATTING . MATERIAL - SEE NOTE (9) / — PLACE UGHT LOOSE RIPRAP OVER SINGLE COURSE GE HAND PLACED RIPRAP TO PROVIDE . 30- ROCK DEPTH 1--- 5. 1418 -..1 PLANt SE * -3. . 77 INSTALL COCONUT _/ ' \ --DOSING FIBER MATTING TO LIMITS I 6 - s' ra, I \ GROUND, TIP WWII ON PLANS. OVERLAY . 6 ONTO GEOTECILE FABRIC. `-PLACE NON -WOVEN GEOTEXT1LE 58.9010, APPROXIMATELY 10' 1110115, 00511401RE814 Or P510 6155. tLQIE 1. MIME GRASS AND NON- NAIDIE PLANT MATERIAL PRIOR TO PLACEMEIT OF aorcau FABRIC AND COCONUT EBER MATTING. TYPICAL SECTION METALL CHANNEL DOWNS10EAM OF PIPE END 5/15 GENERAL. NOTES 1 1. PM HAND OPERATED TOOLS VAU. BE &Lows WATERWARD CF 000 VEST VALLEY HIGHWAY CUARDRAL 2. CONTR.ACTCR 51711. COMPLY V41TH TRAFFIC CCNTROL SPECIFICATIGNS FOE OPERATIC:4 CF HEAVY EOU5111041 AND 0011.9.11010 LANE CLOSURES ON FEST VALLEY HICIINAY. 1 CON1RACT60 MAU. COMPLY 565115 All PROVISIONS CF 1110 HYDRAVUL PROJECT APPROVAL (1110) 511.1101 HAS BEEN OBTAINED FCR IIIIS PROLECT. 4. 11115 DRAINAGE 0/5110 45 DRY DURING PERIODS OF NO PRECIPITATOR. CCNTRACTOR SHALL SOiEDULE WORK CURING PE0100 IN ?MICH ITIE FCRECAST IS FOR NO PRECPITADON. IN 1110 00511 OF RAIN, CONTRACTOR SHALL PROVIDE A PUMPED BYPASS AROUND WCRK AREA AND PROTECT DISTURBED SCES FRO/ EROSION 1110 APPROPRIATE EEST MANAGEMENT pRAcncts. CONSTRUCTION SEQUENCING NOTES 0 0610VE COSTING 3'z.391.25* CONCRETE FLAPGATE STRUCTURE AND 18. RCP PIPE, APPROXIMATaY 1)16. 0010 110 PIPE .0141. O EXCAVATE TO EPOSE SOUND PPE JOINT. KEEP EXCAVATION TO 1/91:10.111 EXTENIS PRACTICAL TO INSTALL NEN PIPE DISPDK OF ALL EXCAVATED SCO.S OFF 91E. 0 PLACE NON -WOVEN GEOIDOILE FABRIC AS FOLLOWS: • OVER ALL IDPOSED 9113GRA0E UPSLOPE 01 PRCFOSED PIPE END • 107 ME OVER 9.18GRA0E DOWNSLOPE CF PROPOSED PIPE END, SEE TIPICAL SECDON, MIS SHEET REFER TO PLAN VIEW FOR APPRO9IOJA1E UMES OF aoitatE FABRIC. O PUCE COCONUT FI8E2 MAT101G PER EPICAL SECTION NS 60001. OVERLAP 00010111110 BY 27 AND SEPIK PER MANUFACTURERS RECOMMENDATION9, REFER TO PUN VIEW FOR APPROXNATE UNITS OF COCONUT FiBER RARIN0, C) INSTALL 115.140 PLACED RPRAP TO ?ROME TOE 15O110014015 FOUNDADON FOR NEW PIPE 00011015. DRESS SURFACE CF FOUNDATION MTH CSBC, 455040080 MATERIAL INTO 9410 VOIDS. BY liAND AS NECESSARY. O PUCE ONE COURSE OF HAND PLACED RIPRAP OVER 001E011LE FABRIC EIOWNSLCPE OF PROPOSED PPE END. PLACE UCHT LCOSE RIPRAP TO PROVIDE A TOTAL ROO( DEPTH CF 307 MINIMUM. SEE TYPICAL sEcncN, 'MIS SHEET. O INSTALL 12 LF Ur RCP. CONNECT AT DPOSED JOINT AND 0006540 ALONG EGSTING UNE AND GRADE INSTALL Pr TIDE GATE, RED VALVE CR APPROVE) EQUAL 0 PUCE QUARRY SPALLS OVER PIPE TO MATCH SURROUNDING GRADE O RESTORE ALL AREAS MTH COCONUT 119ER MATTING MTH WATER TOLERANT NATIVE SPECIES (SUCH AS WILLOW SP, RED -OSIER 0OCA000, AND NINEBARK) AT APPROXIMARIY 2' TO 4' SPACING. SEE TYPICAL SECTION, THIS SNET. It 3 IL IJ IJ .F'T-1113.L.,IC WORKS' DEP • ENGINEERING• STREETS• WATER • SEWER • BUILDING • 1906 by date ICI. G. ......." Ludarn ......." urea. ..... 1999 SMALL DRAINAGE i 1T. dmPea " v" REVIEW SUBMITTAL sillim dem IN 2/99 NE = I checked FM ell kb 1/99 WEST VALLEY HIGHWAY ye IN IIII date 15101001 Et no Rol dir stile AS 9+0 PI field Ilk co 1LIC 024349