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Home My WebLink AboutSEPA E97-0028 - CITY OF TUKWILA - RIVERTON CREEK SALMON HABITAT RESTORATIONRIVERTON CREEK SALMONID HABITAT RESTORATION SEDIMENT TRAPS & INSTREAM STRUCTURES 3417 S. 120T" ST. E97-0028 AFFIDAVIT OF DISTRIBUTION 1,Q l.C6; _LHOk Y �71.t1L( hereby declare that: 0 Notice "'Notice of Public Hearing of Public Meeting fl Board of Adjustment Agenda Packet Board of Appeals Agenda Packet Planning. Commission Agenda Packet fl Short Subdivision Agenda Packet O Notice of Application for Shoreline Management Permit LIShoreline Management Permit 4 Determination of Non- significance J Mitigated Determination of Nonsignificance Determination of Significance and Scoping Notice ONotice of Action Official Notice Other Other was mailed to each of the following addresses on OC* a I22. a , ®b �G�� _ `�krI_c51 cam= o,-- c.,vc.Sz S2-' n Name of Project a )-PA h UASLe i Signatur File Number G- CO CLLL L Or\, CHECKLISO ENVIRONMENTAL REVIEW/SHORELINE OMIT MAILINGS 0/( U.S. ARMY CORPS OF ENGINEERS �/( ) FEDERAL HIGHWAY ADMINISTRATION ( ) DEPT OF FISH & WILDLIFE FEDERAL AGENCIES ( ) U.S. ENVIRONMENTAL PROTECTION AGENCY ( ) U.S. DEPT OF H.U.D. WASHINGTON STATE AGENCIES ( ) OFFICE OF ARCHAEOLOGY ( ) TRANSPORTATION DEPARTMENT ( ) DEPT NATURAL RESOURCES ( ) OFFICE OF THE GOVERNOR ( ) DEPT OF COMMUNITY DEVELOPMENT t/(6C� DEPT OF FISHERIES & WILDLIFE ( ) DEPT OF SOCIAL & HEALTH SERV. 1./c) DEPT OF ECOLOGY, SHORELANDS DIV DEPT OF ECOLOGY, SEPA DIVISION* (- ) OFFICE OF ATTORNEY GENERAL * SEND CHECKLIST WITH DETERMINATIONS * SEND SITE MAPS WITH DECISION KING COUNTY AGENCIES K.C. PLANNING & COMMUNITY DEV. BOUNDARY REVIEW BOARD FIRE DISTRICT #11 FIRE DISTRICT #2 K.C. WATER POLLUTION CNTRL ( ) S CENTRAL SCHOOL DISTRICT ( ) TUKWILA LIBRARIES ( ) RENTON LIBRARY ( ) KENT LIBRARY ( ) CITY OF SEATTLE LIBRARY U S WEST SEATTLE CITY LIGHT WASHINGTON NATURAL GAS HIGHLINE WATER DISTRICT SEATTLE WATER DEPARTMENT TCI CABLEVISION OLYMPIC PIPELINE ( ) K.C. DEPT OF PARKS ( ) HEALTH DEPT ( ) PORT OF SEATTLE ( ) BUILDING & LAND DEV DIV SEPA INFO CENTER SEPA OFFCL ( ) K.C. TRANSIT DIVISION — SEPA OFFICIAL SCHOOLS/LIBRARIES UTILITIES HIGHLINE SCHOOL DISTRICT K C PUBLIC LIBRARY SEATTLE MUNI REF LIBRARY SEATTLE SCHOOL DISTRICT RENTON SCHOOL DISTRICT 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 TUKWILA CITY DEPARTMENTS: ( ) PUBLIC WORKS ( ) FIRE ( ) POLICE ( ) FINANCE ( ) PLANNING ( ) BUILDING ( ) PARKS & REC. ( ) MAYOR RENTON PLANNING DEPT CITY OF SEA—TAC CITY OF BURIEN TUKWILA PLANNING COMMISSION MEMBERS TUKWILA CITY COUNCIL MEMBERS CITY OF SEATTLE — SEPA INFO CENTER SEATTLE OFFICE OF MGMNT PLANNING OTHER LOCAL AGENCIES ( ) PUGET SOUND REGIONAL COUNCIL ( ) P.S. AIR POLLUTION CONTROL AGENCY ( ) SW K C CHAMBER OF COMMERCE (.) MUCKLESHOOT INDIAN TRIBE ve(7() DUWAMISH INDIAN TRIBE ( ) DAILY JOURNAL OF COMMERCE ( ) VALLEY DAILY NEWS 2/10/97 C:WP51DATA\CHKLIST () METRO ENVIRONMENTAL OFFICE/INDUSTRIAL RESIDENTIAL RETAIL 30 MEDIA ( ) HIGHLINE TIMES Co() SEATTLE TIMES PLANNING DIV. 5,000 GSF OR MORE 50 UNITS OR MORE ,000 GSF OR MORE • CITY OF TUiWILA DETERMINATION OF NONSIGNIFICANCE (DNS) DESCRIPTION OFPROPOSAsL: RIVERTON CREEK. SALMONID HABITAT RESTORATION PROJ. PROPONENT:. RYAN PARTEE, CITY OF'TUKWILA LOCATION OF PROPOSAL, INCLUDING _STREET ADD.RES S, _,IF ANY: ADDRESS: PARCEL NO: SEC/TWN/RNG: 6200 S(IUTHCENTER` BL 359700-20282' SW10- 23:,N, 4E LEAD AGENCY: ,CITY OF, TUK:WILA The City .his 'determined,that the )pioposa 1 does not have a- probable significant, ."adverse impact .on, , Athe environment. An environmental impact statement (EIS); is not' -required under RCW 43.21c.030(2)(C). This dec i si on. was made after• rev iew sof a completed environmental checkl is;t?fand other infor enation on°file- With the lead aaency:This information is available to the publicon,r.equest. FILE NO:._E97-0028 kh***kk*.fi***k**i14**t414k.kkit+* k*•k*k**•k k(k•k***k***kk•k *kkkkk�t•�tk**01,1* ***k***k** This determination is,tina1 ,and signed this--_ day of _ QC T 199 -7. r Steve Lancaster, .Responsible Official. City of Tukwila, (206) 431-3670 h300 'Southcenter Boulevard Tukwila, WA9818$,- s Copies of the procedures for SERA appealsare available with the Department of CoMmuni ty Development, • CR,v of Tukwila ti 1 John W. Rants, Mayor Department of Community Development Steve Lancaster, Director To: Steve Lancaster From: Michael Jenki Date: October 1, 1997 Re: E97-0028, SEPA review of joint application by City of Tukwila Public Works Department and The Boeing Co. for Riverton Creek Salmonid Habitat Restoration Project, 3417 S. 120th Street MEMORANDUM Project Description: This SEPA review is for a jointly sponsored project between the City of Tukwila Department of Public Works and The Boeing Co. to restore and redevelop portions of the Riverton Creek, immediately adjacent to Boeing Co. properties at 3417 S. 120th. The scope of work includes the construction of 2 detention ponds through the development of containment structures, to support a habitat for rearing and spawning salmonids. The scope of the project is represented in the attached site plans. Agencies with jurisdiction: U.S. Army Corps of Engineers Washington State Department of Fisheries Comments to SEPA checklist: Pg. 4, section 3: An HPA permit is required for work related to this project, which must be received prior to issuance of a Land Altering Permit. Summary of Primary Impacts: • Earth Site has varied slopes, primarily less than 3% but with slopes of up to 25% near an existing concrete cascade structure. Soils are primarily silt, sand and gravel. Erosion control will be used to limit possible erosion during installation of sediment control structures and detention pond. • Air Exhaust from construction vehicles and dust may occur during construction. 6300 Southcenter Boulevard, Suite #100 0 Tukwila, Washington 98188 0 (206) 431-3670 0 Fax (206) 431-3665 E97-0028 • • SEPA Checklist - City of Tukwila Public Works/The Boeing Co. Riverton Creel Salmonid Habitat Restoration Project October 1, 1997 • Water Riverton Creek, a year-round tributary to the Duwamish River, will be impacted by this project. Accumulated sediments will be removed from the project stretch of Riverton Creek. Construction in and near the water will also occur to create the two detention ponds. The affected portion of the watercourse will be restored following sediment removal. Between 150 and 400 cubic yards of sediment material may be removed from the stream channel to create the 2 detention ponds. The watercourse may need to be temporarily diverted around worksites to complete project, with no net water loss anticipated after its return to existing flow. No ground waters will be diverted. • Plants A variety of deciduous and evergreen trees are located at project site. Wet soil and water plants are also present. Reed canary grasses will be removed to complete project. Future enhancement and restoration will include seeding and planting of native vegetation. • Animals In addition to small rodents, squirrels, raccoon and birds found near site, river is known salmonid habitat. No known threatened or endangered species on or near site. Project will include installation of enhancement features to support salmonid in river. • Energy/Natural Resources Gasoline or other fuels may be used for machinery during construction. • Environmental Health Some short term noise will be generated during construction time period, lasting between 8:00 a.m. and 6:00 p.m. No long term noise impacts are anticipated. • Land/Shoreline Use Project site runs throughout both the MIC/H and MIC/L zones. Existing use adjacent to river are production facilities for the Boeing Co. Adjacent structures are primarily 30 feet in height, located approximately 50 feet from stream bank and incubator locations. A twenty- four (24) foot concrete cascade structure is located near project site. Stream is designated as a Type 2 watercourse by City of Tukwila. • Housing No impacts. E97-0028 SEPA Checklist - City of Tukwila Public Works/The Boeing Co. Riverton Creel Salmonid Habitat Restoration Project October 1, 1997 • • • Aesthetics Project will not create aesthetic impacts. • Light and Glare No impacts. • Recreation A passive recreation area, including picnic facilities and visual access points are located near project. Neither will be impacted by project. • Historic/Cultural Preservation No impacts. • Transportation Site is located near S. 120th Place and E. Marginal Way S. Transit service is located within 2 blocks of project site. Parking requirements for Boeing will not be impacted. • Public Services Proposed development will require monitoring by City of Tukwila to ensure effectiveness of program. Volunteer assistance for monitoring is anticipated. • Utilities No impact. Recommendation: DNS AFFIDAVIT OF DISTRIBUTION 1, _ n ‹.e.0 P OV Q ('CL t rit hereby declare that: fl Notice of Public Hearing Notice of Public Meeting Board of Adjustment Agenda Packet []Board of Appeals Agenda Packet Planning Commission Agenda Packet fl Short Subdivision Agenda Packet Notice of Application for Shoreline Management Permit LShoreline Management Permit fl Determination of Non- significance 0 Mitigated Determination of Nonsignificance Determination of Significance and Scoping Notice Notice of Action fl Official Notice 0 Other 11Other was mailed to each of the following addresses on ).P ,&-; wl ) (QQ7 s „ Name of ProjecakkMertraWdbiilt Signature File Numberl CA • City of Tukwila John W. Rants, Mayor Department of Community Development Steve Lancaster, Director NOTICE OF APPLICATION DATED SEPTEMBER 19, 1997 The following applications have been submitted to the Department of Community Development for review and decision. FILE NUMBERS: E97-0028 (SEPA Application) APPLICANT: City of Tukwila, in conjunction with The Boeing Co. LOCATION: Riverton Creek, near 3417 S. 120th St. PROPOSAL: Construction of sediment traps and instream habitat structures for the rearing and spawning of salmonids. OTHER REQUIRED PERMITS: Land Altering Permit HPA (Hydraulic Permit - Army Corps of Engineers) These files are available for review 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 by 5:00 p.m. on October 3, 1997. If you have questions about this proposal contact Michael Jenkins, the Planner in charge of this file. 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 or obtain information on your appeal rights by contacting the Department at 431-3670. A decision from the Planning Commission may be appealed to the City Council. The Department will provide you with information on appeals if you are interested. DATE OF APPLICATION: NOTICE OF COMPLETE APPLICATION: NOTICE OF APPLICATION: August 20, 1997 September 15, 1997 September 19, 1997 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • (206) 431-3670 • Fax (206) 431-3665 . • City of Tukwila John W. Rants, Mayor Department of Community Development Steve Lancaster, Director NOTICE OF COMPLETE APPLICATION September 15, 1997 Ryan Partee City of Tukwila Public Works Department 6300 Southcenter Blvd., Suite 100 Tukwila, WA 98188 RE: SEPA Application for Riverton Creek Salmonid Habitat Restoration project, 3417 S. 120th St, Tukwila, File No. E97-0028 Dear Ryan: Your SEPA application, on behalf of the City of Tukwila, for the Riverton Creek Salmonid Habitat Restoration Project has been found to be complete on September 15, 1997 for the purposes of meeting state mandated time requirements. I have been assigned to this project. The next step is for you to install the Notice Board on the site within 14 days of the date of this letter. Also, you must obtain laminated copies of the Site Plan and Notice of Application to post on the board, which are available at DCD. After installing the sign, you need to return the signed Affidavit of Posting to the our office and you will receive the Notice of Application and Site Plan. As you will recall, we had discussed the development of an additional site plan for the Notice of Application and posting. This should be submitted to me as soon as possible so that it can be included for Notice requirements. 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. I will be contacting you soon to discuss this project. If you wish to speak to me sooner, feel free to call me at 431-3685. Sincerely, /%€;., Michael Jenkins Assistant Planner cc: Reviewing City Departments c:M soffice... sepa\9728comp.doc 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • (206) 431-3670 • Fax (206) 431-3665 Date: 15 -Sep -97 10:01:16 From: RYAN -P (RYAN PARTS) To: CATHY Subject: RE: Addresses for notification Message -id: 6C071 D3401000000 Application -name: MHS • >Date: 15 -Sep -97 08:17:48 >From: MICHAEL -J (MICHAEL JENKINS) >To: RYAN -P >Subject: RE: Addresses for notification >Message -id: 2CEF 1 C3401000000 >Application -name: MHS »Date: 12 -Sep -97 11:26:41 »From: RYAN -P (RYAN PARTEE) »To: MICHAEL -J »Subject: Addresses for notification »Message -id: F126193401000000 »Application -name: MHS »Michael, »The following is a complete list of the properties witnin 500' of the »selected sign posting area on the SW corner of E. Marginal Way and 120th »Pl. »Inco Expressions 3600 S. 124th St. Tukwila, WA 98168 »Group Health Cooperative 12400 E. Marginal Way S. Tukwila, WA 98168 »Baley's Sales 12303 E. Marginal Way S. Tukwila, WA 98168 »Sam's Tire Service 12115 E. Marginal Way S. Tukwila, WA 98168 »H.D. Campbell 12301 E. Marginal Way S. Tukwila WA 98168 »Puget Sound Mobile Trailer Repair 12121 E. Marginal Way S. Tukwila, WA »98168 »Goodyear Whole Sale Tire Center 12125 E. MArginal Way S. Tukwila, WA »98168 »Metro Transit C/O Bruce Burrow 11911 E. Marginal Way S. Building C »M.S. SF Tukwila, WA 98168 »Thanks, Ryan >looks great, but what you need to do know is have two sets of mailing >lables prepared as well as a copy of the assessor's map that shows the >properties in question and submit them to moi.... • • Give brief, complete description of your proposal. There are two primary objectives concerning this proposal. 1.) The creation of two sediment detention ponds which will significantly restrict the movement of sand and sediment into the enhancement area., 2.) The removal of accumulated depositional material between the proposed sediment detention ponds and S. 120th St. (Figure 1- 5). This work will be conducted in addition to the existing sediment removal program which is governed by a separate HPA (Figure 6). The following is a description of each objective. 1. Two sediment detention ponds are planned for installation in areas not accessible to anadromous salmonids (Figure 2-4). The purpose of these detention ponds will be to restrict the significant movement of additional depositional material from progressing into the lower reach. 2. Removal of accumulated sediment and reed canary grass (Phalaris arundinacea) within the stream bed from the proposed sediment detention ponds to S. 120th St. (Figure 2). The removal of accumulated depositional material and the reed canary grass will improve the flow characteristics of Riverton Creek through the sections that have had flooding difficulties over the last several years. RECEIVED CITY OF TUKWILA SEP 0 21997 PERMIT CENTER Mjq-1 oiqq • Current as of 7/23/97 Col No. Epic File No. £67, e.d 2. Fee:1• Receipt No. ENVIRONMENTAL CHECKLIST A. BACKGROUND 1. Name of proposed project, if applicable: Riverton Creek Salmonid Habitat Restoration Project 2. Name of applicant: The City of Tukwila in conjunction with the Boeing Co. 3. Address and phone number of applicant and contact person: City of Tukwila 6300 Southcenter Blvd. Tukwila, WA 98188 433-0179 Ryan R. Partee Fisheries Biologist 4. Date checklist prepared: 02/17/97. Boeing Defense and Space Group P.O. Box 3707 M/S 4h-26 Seattle, WA 98124-2207 544-0347 Ira F. Dunbar Environmental Affairs Administrator 5. Agency requesting checklist: City of Tukwila, Department of Community Development. ECE IED AUG 201997 COMMUNITY DEVELOPMENT 6. Proposed timing or schedule (including phasing, if applicable): Work scheduled to begin in June of 1997 and end approximately in October of 1999. Instream work will be regulated by several approved HPA documents. 7. Do. you have any plans for future additions, expansion, or further activity related to or connected with this proposal? If yes, explain. Yes. Future plans include maintenance and further restoration of salmon habitat. 8. List any environmental information you know about that has been prepared, or will be prepared, directly related to this proposal. This checklist, an HPA, the Riverton Creek Water Quality Management Plan, and the Riverton Creek Salmon Enhancement Design Criteria. Page 1 ENVIRONMENTAL CHECKI 9. Do you know whether applications are pending for governmental approvals of other proposals directly affecting the property covered by your proposal? If yes, explain. None known. 10. List any government approvals or permits that will be needed for your proposal. HPA 11. Give brief, complete description of your proposal, including the proposed uses and the size of the project and site. There are several questions later in this checklist that ask you to describe certain aspects of your proposal. You do not need to repeat those answers on this page. Section E requires a complete description of the objectives and alternates of your proposal and should not be summarized here. The project will increase the rearing and spawning habitat for salmonids within the Riverton Creek drainage. The project will include the construction of sediment traps, removal of fine sediments from silted areas of the stream bed, the construction of contemporary instream habitat structures to increase pool to riffle ratio, and enhancement of aquatic, streamside and riparian vegetation. 12. Location of the proposal. Give sufficient information for a person to understand the precise location of your proposed project, including a street address, if any, and section, township, and range, if known. If a proposal would occur over a range of area, provide the range or boundaries of the site(s). Provide a legal description, site plan, vicinity map, and topographic map, if reasonably available. While you should submit any plans required by the agency, you are not required to duplicate maps or detailed plans submitted with any permit applications related to this checklist. The project is located in the City of Tukwila. Section SW10, Township 23 N, Range 4E, and extends through out the drainage from approximately the intersection of S. 133rd St. and Military 'Specifically, the site is located on the area of Riverton creek currently occupied by the Boeing Co. 3417 S. 120th Pl. Tukwila WA. 98188. 13. Does the proposal lie within an area designated on the City's Comprehensive Land Use Policy Plan Map as environmentally sensitive? Yes. Page 2 ENVIRONMENTAL CHECK* B. ENVIRONMENTAL ELEMENTS 1. Earth • a. General description of the site (circle one): Flat, rolling, hilly, steep slopes, mountainous, other: Flat. b. What is the steepest slope on the site (approximate percent slope)? The maximum slope is approximately 25°. However, this is due to a concrete cascade structure. The rest of the site is mainly under a 3 ° gradient. c. What general types of soils are found on the site (for example, clay, sand, gravel, peat, muck)? If you know the classification of agricultural soils, specify them and note any prime farmland. The soils include silt, sand, and gravels. d. Are there surface indications or history of unstable soils in the immediate vicinity? If so, describe. No. e. Describe the purpose, type, and approximate quantities of any filling or grading proposed. Indicate source of fill. None. f. Could erosion occur as a result of clearing, construction, or use? If so, generally describe. Yes. Some minor erosion could occur during the installation of the sediment control structures. Erosion control techniques will be used to limit this to a minimum and surface areas involved are of negligible impact to the stream and surrounding area: g. About what percent of the site will be covered with impervious surfaces after project construction (for example, asphalt or buildings)? None. h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any: Temporary erosion control materials will be employed during construction as required. Page 3 ENVIRONMENTAL CHECK. 2. Air a. What types of emissions to the air would result from the proposal (i.e., dust, automobile odors, industrial wood smoke) during construction and when the project is completed? If any, generally describe and give approximate quantities if known. Some heavy equipment diesel exhaust. b. Are there any off-site sources of emissions or odor that may affect your proposal? If so, generally describe. No. c. Proposed measures to reduce or control emissions or other impacts to air, if any: None. This area is considered to be industrial. 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. Riverton Creek is a small year-round tributary to the Duwamish 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 overall project will remove accumulated sediments throughout much of the fore mentioned reach of Riverton Creek. Other construction may include use of rocks structures to restrict the transportation of sediments. Contemporary stream restoration techniques will be used to enhance stream after the completion of the sediment removal. This project will not create an impassable barrier to fish but will ultimately provide much needed quality spawning and rearing habitat. 3) Estimate the amount of fill and dredge material that would be placed in or removed from surface water or wetlands and indicate the area of the site that would be affected. Indicate the source of fill material. 150 to 400 cubic yards of sediment material may possibly be removed from the stream channel. Page 4 ENVIRONMENTAL CHECK.' 4) Will the proposal require surface water withdrawals or diversions? Give general description, purpose, and approximate quantities, if known. During the work it may be necessary to temporarily divert water around work sites in order to minimize extreme turbidity levels. The water will be returned to the stream below the work area resulting in no net water loss from the system. 5) Does the proposal lie within a 100 year floodplain? If so, note location on the site plan. No. 6) Does the proposal involve any discharges of waste materials to surface waters? If so, describe the type of waste and anticipated volume of discharge. No b. Ground: 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 waste materials that will be discharged into the ground from septic tanks or other sources, if any (for example: Domestic sewage; industrial, containing the following chemicals...; agricultural; etc.) Describe the general size of the system, the number of such systems, the number of houses to be served (if applicable), or the number of animals or humans the system(s) are expected to serve. N/A c. Water Runoff (including storm water): 1) Describe the source of runoff (including storm water) and method of collection and disposal, if any (include quantities, if known). Where will this water. flow? Will this water flow into other waters? If so, describe. This project will not increase existing runoff potential. However, it will reduce the localized flooding on Boeing property during storm events. 2) Could waste materials enter ground or surface waters? If so, generally describe. No d. Proposed measures to reduce or control surface, ground, and runoff water impacts, if any: Page 5 ENVIRONMENTAL CHECKI None. Plants a. Check or circle types of vegetation found on the site: X deciduous tree: alder, maple, aspen, other X evergreen tree: fir, cedar, pine, other X shrubs X grass pasture crop or grain X wet soil plants: cattail, buttercup, bulrush, skunk cabbage, other X water plants: water lily, eel grass, milfoil, other X other types of vegetation b. What kind and amount of vegetation will be removed or altered? Reed canary grass (Phalaris arundinacea). c. List threatened or endangered species known to be on or near the site. None known. d. Proposed landscaping, use of native plants, or other measures to preserve vegetation on the site, if any: Future enhancement and restoration will include seeding and planting of native riparian vegetation. 5. Animals or enhance stressed and a. List any birds or animals which have been observed on or near the site or are known to be on or near the site: Birds: songbirds, crows. Mammals: raccoons, squirrels, small rodents. Fish: threespine stickleback, sculpin. Other: insects. b. List any threatened or endangered species known to be on or near the site. None known. c. Is the site part of a migration route? If so, explain. No. d. Proposed measures to preserve or enhance wildlife, if any: Page 6 ENVIRONMENTAL CHECK.' • Future salmon habitat enhancement of the site will include the installation of in stream enhancement structures, and increased riparian vegetation throughout the entire drainage are proposed. Page 7 ENVIRONMENTAL CHECK. 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. None other than gravity to provide water flow through the system. b. Would your project affect the potential use of solar energy by adjacent properties? If so, generally describe. No. c. What kinds of energy conservation features are included in the plans of this proposal? List other proposed measures to reduce or control energy impacts, if any: N/A 7. Environmental Health a. Are there any environmental health hazards, including exposure to toxic chemicals, risk of fire and explosion, spill, or hazardous waste, that could occur as a result of this proposal? If so, describe. No. 1) Describe special emergency services that might be required. None. 2) Proposed measures to reduce or control environmental health hazards, if any: None. b. Noise 1) What types of noise exist in the area which may affect your project (for example: traffic, equipment, operation, other)? Site is located in a commercial/industrial area bordered by high volume traffic corridors. 2) What types and levels of noise would be created by or associated with the project on a short-term or long-term basis (for example: traffic, construction, operation, other)? Indicate what hours noise would come from the site. Potential for use of a backhoe and other machinery during sediment removal. All work will be conducted during business hours. Page 8 ENVIRONMENTAL CHECKIllk 3) Proposed measures to reduce or control noise impacts, if any: Restrict hours of operation to comply with the City's noise ordinance. 8. Land and Shoreline Use a. What is the current use of the site and adjacent properties? The site is currently a stream within a commercial/industrial complex which produces components for civilian aircraft. b. Has the site been used for agriculture? If so, describe. No. c. Describe any structures on the site. There is a 30' high tilt up concrete building on the site approximately 50' from the stream bank and incubator location. Also located on the site in the stream is a 24' concrete cascade structure (25 ° grade) which is a barrier to fish migration. d. Will any structures be demolished? If so, what? No. e. What is the current zoning classification of the site? Commercial. f What is the current comprehensive plan designation of the site? MIC/L g. If applicable, what is the current shoreline master program designation of the site? N/A. h. Has any part of the site been classified as an "environmentally sensitive" area? If so, specify. Yes. Riverton Creek, is a type 2 stream and is listed in the City of Tukwila as a designated water course. 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. Page 9 ENVIRONMENTAL CHECK. • k. Proposed measures to avoid or reduce displacement impacts, if any: None. L Proposed measures to ensure the proposal is compatible with existing and projected land uses and plans, if any: The proposed improvements do not change from the existing use or capacity. 9. Housing a. Approximately how many units would be provided, if any? Indicate whether high, middle, or low-income housing? N/A. b. Approximately how many units, if any, would be eliminated? Indicate whether high, middle, or low-income housing. N/A. c. Proposed measures to reduce or control housing impacts, if any: N/A. 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? N/A. b. What views in the immediate vicinity would be altered or obstructed? None. c. Proposed measures to reduce or control aesthetic impacts, if any: Aesthetics will be enhaced as a byproduct of this project. 11. Light and Glare a. What type of light or glare will the proposal produce? What time of day would it mainly occur? None. b. Could light or glare from the finished project be a safety hazard or interfere with views? No. Page 10 ENVIRONMENTAL CHECK. 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 designed and informal recreational opportunities are in the immediate vicinity? The site provides a passive recreation area with a small number of picnic tables as well as visual access along portions of the stream. b. Would the proposed project displace any existing recreational uses? If so, describe. No. c. Proposed measures to reduce or control impacts on recreation, including recreation opportunities to be provided by the project or applicant, if any: None. 13. Historic and Cultural Preservation a. Are there any places or objects listed on, or proposed for, national, state, or local preservation registers known to be on or next to the site? If so, generally describe. No. b. Generally describe any landmarks or evidence of historic, archaeological, scientific, or cultural importance known to be on or next to the site. N/A. 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. S. 120th Pl. from E. Marginal Way S. b. Is the site currently served by public transit? If not, what is the approximate distance to the nearest transit stop? Yes. Bus service is provided approximately 2 blocks away on E. Marginal Way. Page 11 ENVIRONMENTAL CHECK* • c. How many parking spaces would the completed project have? How many would the project eliminate? Not applicable. d. Will the proposal require any new roads or streets, or improvements to existing roads or streets, not including driveways? If so, generally describe (indicate whether public or private). No. e. Will the project use (or occur in the immediate vicinity of) water, rail, or air transportation? If so, generally describe. No. f How many vehicular trips per day would be generated by the completed project? If known, indicate when peak volumes would occur. None. g. Proposed measures to reduce or control transportation impacts, if any: None. 15. Public Services a. Would the project result in an increased need for public services (for example: fire protection, police protection, health care, schools, other)? If so, generally describe. Yes. The City of Tukwila will be required to monitor the system to ensure habitat improvement effectiveness and sediment structure integrity. b. Proposed measures to reduce or control direct impacts on public services, if any. It is anticipated that there will be volunteer assistance during the course of the project. 16. Utilities a. Circle utilities currently available at the site: electricity, natural gas, water, refuse service, telephone, sanitary sewer, septic system, other. b. Describe the utilities that are proposed for the project, the utility providing the service, and the general construction activities on the site or in the immediate vicinity which might be needed. None. Page 12 ENVIRONMENTAL CHECK. C. SIGNATURE The above answers are true and complete to the best of my knowledge. I understand that the lead agency is relying on them to make its decision. Signature: /.6( Date Submitted: 8/a, /7"� D. SUPPLEMENTAL SHEET FOR ALL PROJECT AND NON PROJECT PROPOSALS The objectives and the alternative means of reaching the objectives for a proposal will be helpful in reviewing the foregoing items of the Environmental Checklist. This information provides a general overall perspective of the proposed action in the context of the environmental information provided and the submitted plans, documents, supportive information, studies, etc. 1. What are the objectives of the proposal? Removal of accumulated sediments in Riverton Creek throughout the portion that runs through Boeing property. 2. What are the alternative means of accomplishing these objectives? None. 3. Please compare the alternative means and indicate the preferred course of action: Removal of accumulated sediment. 4. Does the proposal conflict with policies of the Tukwila Comprehensive Land Use Policy Plan? No. 5. Proposed measures to avoid or reduce the conflict(s) are: None. Page 13 ' FROM :D&SG FACILITIES DEPARTMENT OF FISHERIES OUST NANE Boeing Company 12 WATE -Unnamed 4110 2065442854 196-17 15:05 #1291 P.02/02 rn HYDRAULIC PROJECT APPROVAL R.C.W. 7 5 .2 0.10 0 R.C.W. 75.20.103 Novmber 25, 1996 (applicant should refer to this date in all correspondence) PAGEiOF 2 PAGES 4284.0-153-6666• 18 CONTACT PHONE(S) (206) 655-2273 C CONTROL NUMBER 00-63032-06 a WRIA 09.0003 4. Dredging equipment shall be operated from the top of the bank. Drive mechanisms shall not enter or operate within the flowing stream. 5 All dredging o erations shall work from one bankline only. Vegetation on the opposite bank shall not be disturbed. 6. Every effort shall be made to protect existing trees and large - shrubs on both sides of the channel. 7. Only, vegetation on the immediate stream bank and Reed's canary grass plainng in terraceeorhbench,nel mif oy necexists, ashe ewelltasnthe inner the sides of the revetments or levies shall remain undisturbed. 8. This HPA also authorizes the removal of Reed's canary grass and blackberry vines with hand-held equipment which will allow the operator to avoid cutting other forms of vegetation. 9. All cut vegetation shall be removed from the stream and disposed of outside the flood plain. 10. The Reed's canary grass shall be cut instead of pulled to minimize disturbance to the banks. LOCATION: Vicinity of the end of South 120th Place. bk(11.25) ET RUKW CITYILA SEP'021997 PERMIT CENTER REV 10/16/88 Pool Containment Structure Detention Pond A: Pool Containment Structure Existing Concrete Sluiceway • • / Boeing Access Road -.. Detention Pond B: J METRO GATE J-1 21-12 20 TN STREEl 121-11 CAFETERIA BOEING 21-04 • — — METRO BUS BASE BOEING -LEASED I PROPERTY I I 1 SEDIMENT DETENTION POND INSTALLATION: SITE n SEDIMENT DETENTION POND INSTALLATION: SFTE A 11- Hll1OS 3f1N3AV H.SE PRIVATE PROPERTY S 124TH STREET ir PRIVATE. PROPERTY J - - I BOEING PROPERTY S 126TH STREET I BOEING I PROPERTY j) I P A \J 0 500 FT 1 I I I SCALE • E-2 sn NC' cat---1-e-- "Toe are Toe VIEW of er-eAvAno." S� g Stet-eiiscro.N" 5i`24c RC- . 2.0' X Io' Appwx. a ss Se -t e-14/ 0 C -e 2 Sc—T-1-1 o., Al_ 3 4- V« -w c,F e rzt-t-lc z , ep_osi Sc-c.Ttc M- V1 EW of l.XeetVAT, UV\ F"o,2. St1)1 eh ; Pc„� Sr i(-CzA-rt0.-1 51n -,r . -J, ?LAC G--AA.tc-N-, r FLot , u1 A-T� L OF E-cC%e- L' Sr vciv2c NcT 1v /N (1.7-t4 Sc NDeLLI4 4. c.00ApLtity) Back Lt.t-v o1 2teh/PL.” RECEIVED CITY OR TUKWILA SEP 0 21997 I�ERMIT CENTER STEpb t/Y1 S. 5tv«NtiP Top J, w c F �o'psdn• e -Nr Q o;.%l s revcs , s . S'rev en,Q€ I S iv r �S.b..rtYj 10 pots Dtrr..r, / rz/tn. Is De-5,6.,vt-» To IivS1".rt€ pocc_ I ni TE'b 2, •(S o IL S,4 31 c , 2,1-n ch ctitf 5i19-43/1-1 Z Art 'A-1 S72ucTVsZt Sc4, .IA-ri , of a A�IN�W AC %t t ri 01ia- etV:Y:L1 n CIL. 1- i 127 St J C S131St As 134 St 12,vcn rtti (4V1C. V A-c<<v .•,_Gm Uri e --ca T° 1.1-€1-1 $ F C 4E.sL Lc''(. �'t-t cr RECEIVE.Q_ _ CITY OF TUKWICA SEP 0 21997 PERMIT CENTER I r rL4rr1.T�' L�.. lc3 �i� Jam, Seo. .tic*'•r U,4 s, Levib M11 of Lelr1 of CULr A R.c+.cu Fr -0 SIA. 44- -10 Sp . 19 I ( Af.Pr•.Y 75o.. Pac. on+HNti(.t Fi-..--. CJL' 1-r' .5 •4pin.v 1. 15O ..�. cM C✓a`+iT• Sira�i.. 1 t.1'fl in Slit-ve vo.v 4 2 118 10 83 0 \c.... t'. as..• ,4, a PJllo. -16 STA • 1 - SCO wt"'III Li .4fi, ". 14 1 STY.t,ki:'Iv &Q t6 raw it.& 2 S, u,1.4/0 a.L pt. v4c o.1.1 L-4-1 T- o o F Se -y) r ✓.� t;1 r S Nir -1—4-ri SjaverWI=S P -I./ i30 0- /6 erwpC Fo 12, r,2:(v. erg , RJ1..D. RECEIVED CITY OF TUKWILA SEP 021997 PERMIT CENTER aot.rtn-r ��CLJ Sto.w,rnr Dcpas.rw. Tut stoob•10 . r T t% SctTw G4'4 len I. r1 of Pti+.CtJ StiA. AA -to 57%+. I'1 t t Appr..Y . lgo w . 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E 3 ) 7 i • go --1,11, Access 2.cn•9 v .r/ y r .1� • .......-.�•..a........ •�.y•••rae••• . .. . • • • •I•./•• •- •. ♦.� �.•.-..A- _.,*.A.�.... . • ' .• . .• .••%•• • ••041••••%* ••• .^•.':' • .., Z>J `'� STA. CITY OF TUKWILA STA. 8 ricCEIVED cgeo STA. -c,b v,l 4. L••• Pc «. 4=1 Z . SEP 0 21997 PERMIT CENTER