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SEPA E01-003 - FOSTER THOMAS - POTTERY WORKS TOWNHOUSES
POTTERY WORK TOWNHOMES PROJECT 51ST AVE. S. & S. 111T" ST. E01 -003 March 1, 2002 • City of Tukwila Steven M. Mullet, Mayor Department of Community Development Steve Lancaster, Director Thomas Foster 6450 Southcenter Boulevard #106 Seattle WA 98188 Re: Design Review and SEPA Applications for Pottery Townhouses project. File numbers LO1 -010 and E01 -003. Dear Mr. Foster: This letter is to notify you that the above referenced application has been currently closed as no re- submittal was received from you in response to the City's request for additional information dated March 7, 2001. The Design Review and SEPA applications were submitted on February 7, 2001. A notice of incomplete application and request for additional information was sent to you on March 7, 2001, which listed the additional information that was required to further process your application. The letter also stated that the information must be submitted within 90 days of that letter. Since there was no response received from you to address the issues raised in the March 7, 2001 letter within 90 days of that letter, the city has presently closed the application files. If you wish to pursue this project, new applications must be filed. If you have any further questions, you can contact me at 206 - 431 -3685. Sincerely, Minnie Dhaliwal Associate Planner 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206- 431 -3670 • Fax: 206 - 431 -3665 March 7, 2001 • Cizy of Tukwila Steven M. Mullet, Mayor Department of Community Development Steve Lancaster, Director Thomas Foster 6450 Southcenter Boulevard #106 Seattle WA 98188 Re: Notice of incomplete application for Pottery Townhouses project. File numbers L01- 010 and E01 -003. Dear Mr. Foster: The Department of Community Development received your application to construct 12 townhouses at a site located at 51St Avenue South and South 111th Street. Based on a review of your submittal relative to those requirements as set out in the Complete Application Checklists for Design Review and SEPA review, your applications are deemed incomplete. T: iul.i::iv g idiot illation i :. required in order for Design-Review application tot e determined complete: 1. The subject site contains steep slopes. A geo - techical report prepared by a certified geo - technical engineer is required for any development on steep slopes. Refer to the attached Tukwila Municipal Code (TMC) 18.45.080(E), for the requirements for the geo - technical report. 2. Clearing of trees on any steep slopes is subject to tree regulations of TMC Chapter 18.54. All significant trees must be shown on the survey and those that are proposed to be removed must be identified. Significant trees are defined as all trees except cottonwoods that are 4" in caliper measured 4.5' above grade. Further refer to TMC 18.54.080 for other information related to trees that must be shown on the survey and landscape plan. Also refer to TMC 18.54.130 for criteria to be used to authorize removal of significant trees on steep slopes. Specifically refer to the replacement tree ratios and sizes for replacement trees. 3. Site plan must include development coverage information. Maximum allowed is 50 percent of the lot area. 4. Schematic road design. 1 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 5. Lighting Plan that includes location and type of street and site lighting. Refer to item #24 in the submittal checklist for details related to lighting plan. Also, refer to TMC 18.52.065 for additional lighting requirements. 6. Signage per sign code. 7. Colored elevations 8. Materials and colors board. 9. Lot Consolidation application. (see attached) 10. This application shows a section of S 111th St as vacated and is included in the property. S 111t St is public property and has not been vacated. You may petition, through Public Works, for a Street Vacation for this section of S 111th Street. Until the street is vacated, this public property may not be included inside property lines in your application for Design Review. If you want to discuss the street vacation procedure, please schedule an appointment with Jill Mosqueda, by contacting the Public Works Permit Technician, Kathleen DeJesus at 206 - 433 -7184. The following information is required in order for SEPA application to be determined complete: Titi p;:irt. After receipt of the requested information, we will notify you within 14 calendar days whether your applications are complete, or if incomplete, what information is still needed to complete the application. It is important to note that this application will expire if we do not receive the additional information within ninety (90) days of the date of this letter unless an extension is granted pursuant to Section 18.105.070(E). Additionally, we have started code - related review and have following comments that need to be addressed: Design Review: 1. Your plans show buildings located over the existing sewer line. You must relocate the structures or provide written approval and construction specifications from the City's Senior Utility Engineer as part of the Design Review application. 2. Landscaping: The landscape plan shows existing landscaping along the rear property line to count towards 10 feet of Type I required landscaping. Please include more information on the plan as to what is existing in that area. Also refer to removal of significant tree comments listed above under item #2. Also the plan shows some retaining walls. Please include details (height) of retaining wall. The landscape plan must also include a note that all landscaped areas are to be irrigated. 3. Recreation Space: 400 square feet of recreation space is required per dwelling unit. It must be located outside the required yard seatbacks. Also, recreation space shall not exceed a 4% slope in any direction. At least 25% and up to a maximum of 50% of the recreation space must be developed for children. Refer to TMC 18.52.060 for details. 4. Fire hydrant locations must be shown on the site plan. Fire truck turn around does not meet the minimum required dimensions. Refer to attached handout on fire access for required dimensions. 5. Recycling storage space must be designed to meets all requirements listed under TMC 18.52.070. Specifically, no dwelling unit shall be more than 200 feet from a collection point. 6. Pedestrian pathway from the public street to the residential units must be included in the site plan. 7. Separate private outdoor spaces for the units must also be included in addition to the required open recreation space requirement. SEPA: 1. This project will generate 5 or more peak hour trips. Please provide a preliminary traffic Teport-which lricludes "a trip distributibii stu`dy `aiid a-site di 'sta-i 'e aiia.ysis fo'r the access. Based on the information provided, the City Engineer may require a more detailed traffic analysis. 2. Following are comments pertaining to corresponding item in the checklist: A.7 The geo- technical report that you provided only addresses infiltration onsite. There is no discussion of steep slopes. Is there another geo - technical report? B.1.d. Because of the steep slopes on this site, please provide documentation that supports a "No" answer. &1.e. Be more specific about the quantity and extent of grading. B.1.h. Please explain in more detail the erosion control measures to be used during grading of the site. B.2.c This question needs an answer. Do not leave blank. B.3.a.6 Offsite sediment transfer could occur, if there is not adequate erosion prevention and sediment transport control. 3 • B.3.c.1 The storm drainage needs to be per 1998 King County Surface Water Design Manual. Retention vaults are not an option per this manual. Please explain why infiltration will not be used. Infiltration is the preferred method. Also, please provide a complete answer to this question. B.3.d Please document who or what requires arch pipe collectors. Where would this pipe be installed? B.4.b. What about tree removal? B.5.a Question asks for "on" or "near ". See attached B.5.b Question asks for on or near; bald eagles are known to utilize areas of Tukwila. B.5.c Yes, Pacific flyway for migratory birds. B.5.d Need to answer the question. Do any trees onsite offer potential use to bald eagles? B6.b Would building elevations eliminate solar power as an option to the neighbors? Need to ansWer the q i soon. • B.15a. The answer is yes, so applicant needs to describe. B.15.b Need to answer the question. If you have any questions, you can reach me at 206 - 431 -3685. Sincerely, Minnie Dhaliwal Associate Planner Encl: TMC 18.45.080E (geo -tech) TMC 18.54 (Tree permit) TMC 18.52.065 (lighting) TMC 18.52.060 (recreation space) TMC 18.52.070 (recycling storage) TMC 18.52 (landscaping) Marked up SEPA checklist Lot consolidation application Fire truck access handout 4 CITY OF TUKWILA PUBLIC WORKS PROJECT REVIEW COMMENTS Project Name: Pottery Works Town homes File #: E01 -003 Date: 02.15.01 Reviewer: L. Jill Mosqueda, P.E. The City Of Tukwila Public Works Department has the following comments regarding your application for the above permit. Please contact Jill Mosqueda at (206) 433 -0179, if you have any questions regarding the following comments. This project will generate 5 or more peak hour trips. Please provide a preliminary traffic report which includes a trip distribution study and a site distance analysis for the access. Based on the information provided, the City Engineer may require a more detail traffic analysis. (Minnie, is this project exempt form traffic per SEPA ?) A.7 The geotechnical report that you provided only addresses infiltration onsite. There is no discussion of steep slopes. Is there another geotechnical report? B.1.d. Because of the steep slopes on this site, please provide documentation which supports a "No" answer. B.2.c This question needs an answer. Do not leave blank. B.3.a.6 Offsite sediment transfer could occur, if there is not adequate erosion prevention and sediment transport control. B.3.c.1 The storm drainage needs to be per 1998 King County Surface Water Design Manual. Retention vaults are not an option per this manual. Please explain why infiltration will not be used. Infiltration is the Projects /Pottery/E01 -003 Pottery town homes 1 preferred method. Also, please provide a complete answer to this question. B.3.d Please document who or what requires arch pipe collectors. Where would this pipe be installed? B.4.b. What about tree removal? B.5.a Question asks for "on" or "near ". See attached B.5.b Question asks for on or near; bald eagles are known to utilize areas of Tukwila. B.5.c Yes, Pacific flyway for migratory birds. B.5.d Need to answer the question. Do any trees onsite offer potential use to bald eagles? B6.b Would building elevations eliminate solar power as an option to the neighbors? B.10.a Need to answer the question. B.15a. The answer is yes, so applicant needs to describe. B.15.b Need to answer the question. SUPPLEMENTAL SHEET D.2 What are the proposed measures. The list is incomplete. D.2 Part 1 : Development of open space eliminates current animal uses. Part 2 : Please provide the sizes and number of trees you expect to remove. D.3 -5 These questions and answers are not included. D.6 Part 1 : Increased demands include increased utility use. Part 2 : Twelve units will increase demands on service, including utilities. Projects /Pottery/E01 -003 Pottery town homes 2 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 STATE OF WASHINGTON COUNTY OF KING The undersigned being duly sworn and upon oath states as follows: I. 1 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 //" XK'' �/ sr 42/ &) • i LA k 4a (,l.9 A for the purpose of application review, for the limited time necessary to complete that purpose. l 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. The City shall, at its discretion , cancel the application without refund of fees, if the applicant does not respond to specific requests for items on the "Complete Application Checklist" within ninety (90) days. ss 7. Non - responsiveness to a City information request for ninety (90) or more days, shall be cause to cancel the application(s) without refund of fees. t L EXECUTED at Se--a-A+- (e (city), (state), on c32. (? TAO '11 a<g /sIe,2 \P J- Z 4Q-•4* --%•.4)11. • o N °TARYp ; STATE ENVIRONMENTAL CHECKLIST Please respond to all questions. Use separate sheets as necessary. Applicant Responses: A. BACKGROUND 1. Name of proposed project, if applicable: Clio 14- m c9y vi lir\o meg. 2. Name of Applicant: %�h o rn 4s 3. Date checklist prepared: c2— Co —o/ / 4. Agency requesting checklist: City of Tukwila 5. Proposed timing or schedule (including phasing, if applicable): Sc.( 0.v. i.4.44- 2_00 6. Do you have any plans for future additions, expansion, or further activity related to or connected with this proposal? If yes, explain. /4 7. List any environmental information you know about that has been prepared, or will be prepared, directly related to this proposal. Geo e re.p r-f fr e . re, r S (0102S r- Co ►.s4- gron ra,. s fo per 8. Do you know whether applications are pending for governmental approvals of other proposals directly affecting the property covered by your proposal? If yes, explain. //D G:\ APPHAN\LANDUSE.APP\SEPAAPP.DOC. 06/16/00 1 Agency Comments RECEIVED CITY OF TUKWII n FEB ° 7 2001 PERMIT CENTER • • Please respond to all questions. Use separate sheets as necessary. Applicant Responses: , Agency Comments 9. List any government approvals or permits that will be needed for your proposal. /lie ice • 10. Give brief, complete description of your proposal, including the proposed uses and the size of the project and site. There are several questions later in this checklist that ask you to describe certain aspects of your proposal. You do not need to repeat those answers on this page. Pro /6%5E -7-'u PJoe (L. n ( e v b o AA 2 f nv A-10 alDr s'2iaa.'> 2 yja l �G� �.y► ( v 11. Location of the proposal. Give sufficient information for a person to understand the precise location of your proposed project, including a street address, if any, the tax lot number, and section, township, and range. If a proposal would occur over a range of area, provide the range or boundaries of the site(s). Provide a legal description, site plan, vicinity map, and topographic map, if reasonably available. While you should submit any plans required by the agency, you are not required to duplicate maps or detailed plans submitted with any permit applications related to this checklist. gyve s / Are So . l u kw( fa W 12. Does the proposal lie within an area designated on the City's Comprehensive Land Use Policy Plan Map as environmentally sensitive? G :WPPHAMLANDUSE.A•P\SEPAAPP.DOC, 06/16/00 2 Please respond to all questions. Use separate sheets as necessary. Applicant Responses: B. ENVIRONMENTAL ELEMENTS 1. Earth a. General description of the site (circle one): Flat,•rolling, hilly, steep slopes, mountainous, other: • ,q so. (S-ifee-f3 —slopes Agency Comments b. What is the steepest slope on the site (approximate percent slope)? c. What general types of soils are found on the site (for example, clay, sand, gravel, peat, muck)? If you know the classification of agricultural soils, specify them and note any prime farmland. Sam et v1/4) rttveJ d. Are there surface indications or history of unstable soils in the immediate vicinity? If so, describe. /XD e. Describe the purpose, type, and approximate quantities of any filling or grading proposed. Indicate source of fill. radt emr.s`�ruc��[c1s. a 1( ltcder1,: / 4 rervw J i o' sL4 N %f4k G: W'PHAN\LANDUSE.APPISEPAAPP.DOC, 06/16/00 3 Please respond to all questions. Use separate sheets as necessary. Applicant Responses: Agency Comments f. Could erosion occur as a result of clearing, construction, or use? If so, enerally d scribe r n,o/ f% -1 r a 1100,r e r os 18 , Co ,.°r/r a ( Y►A -eats 4 r-e c g. • About what percent of the site will be covered with impervious surfaces after project construction (for example, asphalt or buildings)? 30 -- 3S w 1 as F LA+ en,) in-1,1k I is h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any: S 1 �'� elnces 1\4 lc s cqs roc rt.((4 C'm ks. A r tc "Ft m1� 2. Air a. What types of emissions to the air would result from the proposal (for example, dust, automobile odors, industrial wood smoke) during construction and when the project is completed? If/ any, generally describe and give approximate quantities if known. �/ �mnS rtc�`lo:, pQriD� //`` —// `/dUS� rn s�vNP_ moch1„o 4594e.a CD t h P 1 L6`Y1 Q, (.�-7�I'Hd b!!e ,0 11 AS b. Are there any off -site sources of emissions or odor that may affect your proposal? If so, generally describe. G: \APPHAMLANDUSE.APPISEPAAPP.DOC, 06/16/00 4 • • Please respond to all questions. Use separate sheets as necessary. Applicant Responses: c. Proposed measures to reduce or control emissions or other impacts to air, if any: • 3. Water a. Surface: 1. Is there any surface water body on or in the immediate vicinity of the site (including year -round and seasonal streams, saltwater, lakes, ponds, wetlands)? If yes, describe type and provide names. If appropriate, state what stream or river it flows into. 2. Will the project require any work over, in, or adjacent to (within 200 feet) the described waters? If yes, please describe and attach available plans. //4- 3. Estimate the amount of fill and dredge material that would be placed in or removed from surface water or wetlands and indicate the area of the site that would be affected. Indicate the source of fill material. NAL G: APPHANILANDUSE.APP\SEPAAPP.DOC, 06/16/00 5 Agency Comments • Please respond to all questions. Use separate sheets as necessary. Applicant Responses: Agency Comments 4. Will the proposal require surface water withdrawals or diversions? Give general description, purpose, and approximate quantities, if known. • 5. Does the proposal lie within a 100 -year floodplain? If so, note location on the site plan. 6. Does the proposal involve any discharges of waste materials to surface waters? If so, describe the type of waste and anticipated volume of discharge. b. Ground: 1. Will ground water be withdrawn, or will water be discharged to ground water? Give general description, purpose, and approximate quantities, if known. DVS G :WPPHAMLANDUSE.APP\SEPAAPP.DOC. 06/16/00 6 • • Please respond to all questions. Use separate sheets as necessary. Applicant Responses: Agency Comments 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 tp be served (if applicable), or the number of animals or humans the system(s) are expected to serve: c. Water Runoff (including storm water): 1. Describe the source of runoff (including storm water) and method of collection and disposal, if any (include quantities, if known). Where will this water flow? Will this water flow? Will this water flow into other waters? If so, describe. ,4 eAAte v1 vacs ft 2. Could waste materials enter ground or surface waters? If so, generally describe. d. Proposed measures to reduce or control surface, ground, and runoff water impacts, if any: a . rck. p1 re Co f t-e rs as rep a r / G:\ APPHAN\LANDUSE.APP\SEPAAPP.DOC. 06/16/00 7 Please respond to all questions. Use separate sheets as necessary. Applicant Responses: 4. Plants a. Check or circle types of vegetation found on the site: 1/ Deciduous tree: alder, maple, aspen, other • IV' Evergreen tree: fir, cedar, pine, other t/ Shrubs Grass Pasture Crop or grain Wet soil plants: cattail, buttercup, bulrush, skunk cabbage, other Water plants: water lily, eelgrass, milfoil, other Other types of vegetation b. What kind and amount of vegetation will be removed or altered? 5� T-GLAD S epAd rctsS c. List threatened or endangered species known to be on or near the site. done., d. Proposed landscaping, use of native plants, or other measures to preserve or enhance vegetation on the site, if any: s -e. Aq scare, t" n. G: APPHANU.ANDUSE.APP\SEPAAPP.DOC, 06/16/00 8 Agency Comments • • Please respond to all questions. Use separate sheets as necessary. Applicant Responses: 5. Animals a. Circle any birds or animals which have been observed on or near the site or are known to be on or near the site: Birds: Mammals Hawk, heron, eagle, songbirds, other: • Deer, bear, elk, beaver, other: Fish • Other Bass, salmon, trout, herring, shellfish, other: b. List any threatened or endangered species known to be on or near the site. c. Is the site part of a migration route? If so, explain. d. Proposed measures to preserve or enhance wildlife, if any: 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. G: APPHANU.ANDUSE.APPASEPAAPP.DOC, 06/16/00 9 Agency Comments • • Please respond to all questions. Use separate sheets as necessary. Applicant Responses: Agency Comments b. Would your project affect the potential use of solar energy by adjacent properties? If so, generally describe. • c. What kinds of energy conservation features are included in the plans of this proposal? List of er proposed eaaures to reduce or control energy impacts, if any: ,�n e ens ,Cure -bu) Id / �► ��, �D,Ps 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. Ato 1. Describe special emergency services that might be required. 2. Proposed measures to reduce or control environmental health hazards, if any: /174— G: APPHAMLANDUSE.APP\SEPAAPP.DOC. 06/16/00 10 • • Please respond to all questions. Use separate sheets as necessary. Applicant Responses: b. Noise 1. What types of noise exist in the area which may affect your project (for example: traffic, equipment, operation, other)? c • 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. ° f a- ' - o L' m�s 4-r-u- c it u -z yo .n E- c�u ma/ / worL k .s %j% — s 3. Proposed measures to reduce or control noise impacts, if any: n urs 8. Land and Shoreline Use a. What is the current use of the site and adjacent properties? a scen� 1pro Sy /P TQ✓M�`v ■ % Ps /S C rugs' sY1a, /,[e.' —` / „' /V /'P'C/ b. Has the site been used for agriculture? If so, describe. io G:\ APPHAML.AHDUSE.APPISEPAAPP.DOC, 06/16/00 11 Agency Comments • • Please respond to all questions. Use separate sheets as necessary. Applicant Responses: Agency Comments c. Describe any structures on the site. d. Will any structures be demolished? If so, what? e. What is the current zoning classification of the site? f. What is the current comprehensive plan designation of the site? ,' g. If applicable, what is the current shoreline master program designation of the site? h. Has any part of the site been classified as an "environmentally sensitive" area? If so, specify. f\Io G:W PPHAN\LANDUSE.APP\SEPAAPP.DOC. 06/16/00 12 Please respond to all questions. Use separate sheets as necessary. Applicant Responses: Agency Comments i. Approximately how many people would reside or work in the completed project? /a. -36, • j. Approximately how many people would the completed project displace? '\lmi e- k. Proposed measures to avoid or reduce displacement impacts, if any: ,y/9-- 1. Proposed measures to ensure the proposal is compatible with existing and projected land uses and plans, if any: Mee.. Cct r're /14 rt�j 9. Housing a. Approximately how many units would be provided, if any? Indicate whether high, middle, or low - income housing? J > lam. an_ kA- ii r cLIC� 74 `i l ��- j� e o nl i ✓,r°S- G :WPPHAMLANDUSE.APP\SEPAAPP.DOC, 06/16/00 13 Please respond to all questions. Use separate sheets as necessary. Applicant Responses: Agency Comments b. Approximately how many units, if any, would be eliminated? Indicate whether high, middle, or low - income housing. /Voile • c. Proposed measures to reduce or control housing impacts, if any: NA- 10. Aesthetics 2) a. What is the tallest height of any proposed structure(s), not including antennas; what is the principal exterior building material(s) proposed? b. What views in the immediate vicinity would be altered or obstructed? Ross, Yo u n sh Uluvs /�� 711e c. Proposed measures to reduce or control aesthetic impacts, if any: e• yen s70GVr.es. GAAPPHAML .AHDUSE.APP\SEPAAPP.DOC, 06/16/00 14 Please respond to all questions. Use separate sheets as necessary. Applicant Responses: Agency Comments 11. Light and Glare a. What type of light or glare will the proposal produce? What time of day would it mainly occur? Pass, Flo t-e IAA& 1".6 day 4-411- u b. Could light or glare from the finished project be a safety hazard or interfere with views? �GD c. What existing off -site sources of light or glare may affect your proposal? ale d. Proposed measures to reduce or control light and glare impacts, if any: NA- 12. Recreation a. What designed and informal recreational opportunities are in the immediate vicinity? P1' G:\ APPHANU.ANDUSE.APP\SEPAAPP.DOC, 06/16/00 15 Please respond to all questions. Use separate sheets as necessary. Applicant Responses: b. Would the proposed project displace any existing recreational uses? If so, describe. • c. Proposed measures to reduce or control impacts on recreation, including recreation opportunities to be provided by the project or applicant, if any: A1)9- 13. Historic and Cultural Preservation a. Are there any places or objects listed on, or proposed for, National, State, or Local preservation registers known to be on or next to the site? If so, generally describe. b. Generally describe any landmarks or evidence of historic, archaeological, scientific, or cultural importance known to be on or next to the site. Vona c. Proposed measures to reduce or control impacts, if any: /V4- G:W PPHAN\LANDUSE.APP\SEPAAPP.DOC. 06/16/00 16 Agency Comments • • Please respond to all questions. Use separate sheets as necessary. Applicant Responses: 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. • 51 v-e.. So 4 ro posed s i wi 1/ . a CC-e s b. Is the site currently served by public transit? If not, what is the approximate distance to the nearest transit stop? 2S c. How many parking spaces would the completed project have? How many would the project eliminate? np r' rA n,% - a' 00Qa-k, n� plus ( VLS -/R �-o rki vkb e- d. Will the proposal require any new roads or streets, or improvements to existing roads or streets, not including driveways? If so, generally describe (indicate whether public or private). e. Will the project use (or occur in the immediate vicinity of) water, rail, or air transportation? If so, generally describe. G :WPPHAMLANDUSE.APP,SEPAAPP.DOC, 06/16/00 17 Agency Comments • • Please respond to all questions. Use separate sheets as necessary. Applicant Responses: Agency Comments f. How many vehicular trips per day would be generated by the completed project? If known, indicate when peak volumes would occur. 30 esi•r► ef4 ihr(_ 7iJ 4 pm g. Proposed measures to reduce or control transportation impacts, if any: /Axe 7014,4, 1.14] y ?-('a L le, i " ea [n -rmi,e 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. ye-5 — n,m,rlwa,l i r- /09- L2147 Ji etc b. Proposed measures to reduce or control direct impacts on public services, if any. 16. Utilities a. Circle utilities currently available at the site: r, septic G :WPPHANLANDUSE.APPASEPAAPP.DOC, 06/16/00 18 • • Please respond to all questions. Use separate sheets as necessary. Applicant Responses: Agency Comments b. Describe the utilities that are proposed for the project, the utility providing the service, and the general construction activities on the site or in the immediate vicinity which might be needed. euLer ©n s i W 1 4 +foc.r ' }goo ku,os uoo e ae -}a s, e ,c1( 4t1. 4 L.-es I r s J A- Sns 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. �— 6 - / Signature: Date Submitted: (NON- PROJECT PROPOSALS (E.G., SUBURBAN PLANS AND ZONING CODE TEXT CHANGES) MUST COMPLETE THE FOLLOWING PAGES). .t G: \APPHANLANDUSE.APP\SEPAAPP.DOC, 06/16/00 19 • • Please respond to all questions. Use separate sheets as necessary. Applicant Responses: Agency Comments D. SUPPLEMENTAL SHEET FOR NON - PROJECT PROPOSALS (do not use this sheet for project actions) Because these questions are very general, it may be helpful to read them in conjunction with the list of elements of the epvironment. When answering these questions, be aware of the extent the proposal, or the types of activities likely to result from the proposal, would affect the item at a greater intensity or at a faster rate than if the proposal were not implemented. Respond briefly and in general terms. 1. How would the proposals be likely to increase discharge to water; emissions to air; production, storage, or release of toxic or hazardous substances; or production of noise? /re-, rOPr✓tous Sitr4ces& S (4f Proposed measures to avoid or reduce such increases are: ire �4 1 obi C9 Qty 2. How would the proposal be likely to affect plants, animals, fish, or marine life? Proposed measures to protect or conserve plants, animals, fish, or marine life are: ih41vC`506A B ,rf -e►. be I+ act�rek v' 119 <s -1 er�'i ka (-P 6 1�P T I.D-I 2 i.c 11 I ( n J7 P 6 n . k� ec %a Clir+L Y O: UPPHANU.ANDUSE.APPISEPAAPP.DOC, 06/16/00 20 • • Please respond to all questions. Use separate sheets as necessary. Applicant Responses: Agency Comments Proposed measures to avoid or reduce shoreline and land use impacts are: 6. How would the proposal be likely to increase demands on transportation or public service and utilities? q ev , A 4 r\c r eQs e A 1114 ny .`a2 is u-0 1 I LuS'e Proposed measures to reduce or respond to such demand(s) are: 5 i a P �S��Q cii II ,,4 ) nC t`e4s4' de r.e4 P Ji ese SPr.i cpC 7. Identify, if possible, whether the proposal may conflict with Local, State, or Federal laws or requirements for the protection of the environment. o./owe G: APPHANV.ANDUSE.APP\SEPAAPP.DOC, 06/16/00 22 • City of Tukwila. Screening Checklist City of Tukwila Endangered Species Act Screening Checklist Date: , oe,/ Applicant Name: (2 lX' 0/74 c ,4PS 74)/L Street Address: 6 ¥5-0 Soct +ke e v -e,e &LS IOC City, State, Zip: 'az. P; (,e 69- 9f, ccr Telephone: ,2o 6 a DIRECTIONS This Screening Checklist has been designed to evaluate the potential for your project to result in potential "take" of chinook salmon, coho salmon, or cutthroat trout as defined by Section 9 of the Endangered Species Act. The checklist includes a series of "Yes" or "No" questions about your project, organized into four parts. Starting with Part A on Page 1, read each question carefully, circle "Yes" or "No," and proceed to the next question as directed by the checklist. To - answer these questions, you may need to refer to site plans, grading and drainage plans, critical areas studies, or other documents you have prepared for your project. The City will evaluate your responses to determine if "take" is indicated. RECEIVED CITY OF TUKWn n FEB ° 7 2001 PERMIT CENTER January 25, 2001 1 City of ilu ESA Screening Checklist City of Tukwila Endangered Species Act Screening Checklist Date: 'h Applicant Name: (2 ,j/ S Street Address: 6c/ T ) City, State, Zip: ��C e f i�' (/) 6J- 9if2/ ffd" Telephone: ,;2(.9 (; L;2 V V.- c 7 / •;Z DIRECTIONS This Screening Checklist has been designed to evaluate the potential for your project to result in potential "take" of chinook salmon, coho salmon, or cutthroat trout as defined by Section 9 of the Endangered Species Act. The checklist includes a series of "Yes" or "No" questions about your project, organized into four parts. Starting with Part A on Page I, read each question carefully, circle "Yes" or "No," and proceed to the next question as directed by the checklist. To answer these questions, you may need to refer to site plans, grading and drainage plans, critical areas studies, or other documents you have prepared for your project. The City will evaluate your responses to determine if "take" is indicated. January 25, 200/ Ear -40:›3 PAt. 9ia • City of Tukwila. Screening Checklist Part A: Please review and answer each question carefully. Consider all phases of your project including, but not limited to, construction, normal operation, potential emergency operation, and ongoing and scheduled maintenance. Continue to the next question as directed for each No or Yes answer. 1 -0 Will the project require any form of grading? Grading is defined as any excavating, filling, clearing, or creation of impervious surface, or any combination thereof, which alters the existing ground surface of the earth (see Tukwila Municipal Code (TMC) Chapter 18.06, Zoning Code, Page 18 -11). Please circle appropriate response. NO - Continue to Question 2 -0 Yii- Continue to Question 1 -1 (Page 3) 2 -0 Will the project require any form of clearing? Clearing means the removal or causing to be removed, through either direct or indirect actions, any vegetation from a site (see Chapter 18.06, Page 18 -8). Please circle appropriate response. NO - Continue to Question 3 -0 . •` - Continue to Question 2 -1 (Page 4) 3 -0 Will the project require work, during any time of the project, below the ordinary high water mark of a watercourse or the Green/Duwamish or Black Rivers or in wetlands? Ordinary high water mark is the mark that is found by examining the bed and banks of a stream and ascertaining where the presence and action of waters are so common and usual as to distinctly mark the soil from that of the abutting upland, in respect to vegetation (see TMC Chapter 18.06, Page 18 -15). Please circle appropriate response. NO Continue to Question 4 -0 YES - Continue to Question 3 -1 (Page 5) 4 -0 Will the project result in the processing or handling, storage, or treatment of hazardous substances? This does not include the proper use of fuel stored in a vehicle's fuel tank. Hazardous substances are any liquid, solid, gas, or sludge, including any material, substance, product, commodity, or waste, regardless of quantity, that exhibits the characteristics or criteria of hazardous waste as defined by Washington Administrative Code 173 -303 (see TMC Chapter 18.06, Tukwila Zoning Code, Page 18 -11). This includes fuel or other chemicals stored on -site during construction. Please circle appropriate response. 69- Continue to Question 5 -0 YES - Continue to Question 5 -0 5 -0 Will the project result in the withdrawal, injection, or interception of groundwater? Examples of projects that may affect groundwater include, but are not limited to: construction of a new well, change in water withdrawals from an existing well, projects involving prolonged construction dewatering, projects installing French drains or interceptor trenches, and sewer lines. For the purpose of this analysis, projects that require a geotechnical report pursuant to the requirements of TMC 18.45.060 and 18.45.080E.4, or would require a geotechnical report if not exempt under TMC 18.45.080A, should answer Yes. Please circle appropriate response. 059_ Continue to Question 6 -0 - YES - Continue to Question 6 -0 January 25, 2001 2 Part A (continued) 6 -0 Will the project involve landscaping or re- occurring outdoor maintenance that includes the regular use of fertilizers, pesticides, or herbicides? This does not include the one -time use of transplant fertilizers. Landscaping means natural vegetation such as trees, shrubs, groundcover, and other landscape materials arranged in a manner to produce an aesthetic effect appropriate for the use of the land (see TIM Chapter 18.06, Tukwila Zoning Code, Page 18- 13). For the purpose of this analysis, this includes the establishment of new lawn or grass. Please circle appropriate response. • NO — Checklist Complete • City ofvila ESA Screening Checklist YES'— Checklist Complete Part 13: Please answer each question below for projects that include grading. Review each question carefully, considering all phases of your project including, but not limited to construction, normal operation, potential emergency operation, and ongoing and scheduled maintenance. Continue to the next question as directed for each No or Yes answer. 1 -1 Will the project involve the modification of a watercourse bank or bank of the Green /Duwamish or Black Rivers between the ordinary high water mark and top of bank'? This includes any projects that will require grading on any slope leading to a river or stream, but will not require work below the ordinary high water mark. Work below the ordinary high water mark is covered in Part C. Please circle appropriate response. NO Continue to Question 1 -2 YES - Continue to Question 1 -2 itleee is Auwa40 -1xle taA0A cE For. °CF Sire— Se».1.44tv11- 1444 u s.P,h t -to °Corr.. 1 -2 Could the construction, operation, or maintenance of the project result in sediment transport off site or increased rates of erosion and /or sedimentation in watercourses, the Green /Duwamish rivers, or the Black River? Most projects that involve grading have the potential to result in increased erosion and /or sedimentation as a result of disturbances to the soil or earth. If your project involves grading and you have not prepared a Temporary Erosion and Sedimentation Control Plan specifically designed to retain 100 percent of the runoff (including during construction) front impervious surface or disturbed soils, answer Yes to this question. If your project is normally exempt under the Tukwila Municipal Code and would not require the preparation of a Temporary Erosion and Sedimentation Control Plan, BUT may still result in erosion or sediment transport off site or beyond the work area, answer Yes to this question. Please circle appropriate response. r, - Continue to Question 1 -3 - Continue to Question 1 -3 1 -3 Will the project result in the construction of new impervious surfaces? Impervious surfaces include those hard surfaces which prevent or restrict the entry of water into the soil in the manner that such water entered the soils under natural conditions prior to development; or a hard surface area that causes water to run off the surface in greater quantity or at an increased rate of flow from the flow presented under natural conditions prior to development (see TMC Chapter 18.06, Tukwila Zoning Code, Page 18 -12). Such areas include, but are not limited to, rooftops, asphalt or concrete paving, compacted surfaces, or other surfaces that similarly affect the natural infiltration or runoff patterns existing prior to development. Please circle appropriate response. NO - Continue to Question 2 -0 (Page 2) YES> Continue to Question 1 -4 January 25, 2001 _ 3 ALL STD t4,1 4T . WQwo,wv Moo AA. 4.41, w mk, 047 co,,, , .J ego 7 Part B (continued) City of (Vila ESA Screening Checklist 1 -4 Will your project generate stormwater from the creation of impervious surfaces that will not be infiltrated on site? For the purpose of this analysis, infiltration includes the use of a stormwater treatment and management system intended to contain all stormwater on site by allowing it to seep into pervious surface or through other means to be introduced into the ground. If your project involves the construction of impervious surface and does. not include the design of a stormwater management system specifically designed to infiltrate stormwater, answer Yes to this question. Please circle appropriate response. O- Continue to Question 2 -0 (Page 2) YES - Continue to Question 2 -0 (Page 2) Part C: Please review each question below for projects that include clearing. Review each question carefully, considering all phases of your project including, but not limited to construction, normal operation, potential emergency operation, and ongoing and scheduled maintenance. Continue to the next question as directed for each No or Yes answer. 2 -1 Will the project involve clearing within 200 feet of the ordinary high water mark of a watercourse or the Green/Duwamish or Black Rivers? Please circle appropriate response. N- Continue to Question 3 -0 (Page 2) YES - Continue to Question 2 -2 2 -2 Will the project involve clearing of any trees within 200 feet of the ordinary high water mark of a watercourse or the Green /Duwamish or Black Rivers? A tree is defined by TMC 18.06.845 as any self - supporting woody plant, characterized by one main trunk, with a potential diameter- breast - height of 2 inches or more and potential minimum height of 10 feet. Please circle appropriate response. NO Continue to Question 2 -3 YES - Continue to Question 2 -3 2 -3 Will the project involve clearing of any evergreen trees from within 200 feet of the ordinary high water mark of a watercourse or the Green /Duwamish or Black Rivers? For the purpose of this analysis evergreen means any tree that does not regularly lose all its leaves or needles in the fall. Please circle appropriate response. Continue to Question 2 -4 YES - Continue to Question 2 -4 2 -4 Will the project involve clearing within 100 feet of the ordinary high water mark of a watercourse or the Green /Duwamish or Black Rivers? Please circle appropriate response. c � Continue to Question 3 -0 (Page 1) YES - Continue to Question 2 -5 2 -5 Will the project involve clearing within 40 feet of the ordinary high water mark of a watercourse or the Green /Duwamish or Black Rivers? Please circle appropriate response. NO Continue to Question 3 -0 (Page 2) YES - Continue to Question 3 -0 (Page 2) January 25, 2001 4 • City of Tukwila. Screening Checklist Part D: Please review each question below for projects that include work below the ordinary high water mark of watercourses or the Duwamish /Green or Black Rivers or in wetlands. Review each question carefully, considering all phases of your project including, but not limited to, construction, normal operation, potential emergency operation, and ongoing and scheduled maintenance. Continue to the next question as directed for each No or Yes answer. 3 -1 Will the project involve the direct alteration of the channel or bed of a watercourse, the Green/Duwamish rivers, or Black River? For the purpose of this analysis, channel means the area between the ordinary high water mark of both banks of a stream, and bed means the stream bottom substrates, typically within the normal wetted -width of a stream. This includes both temporary and permanent modifications. Please circle appropriate response. NO - Continue to Question 3 -2 YES - Continue to Question 3 -2 3 -2 Will the project involve any physical alteration to a watercourse or wetland connected to the Green/Duwamish River? For the purpose of this analysis, "connected to the river means" flowing into via a surface connection or culvert, or having other physical characteristics that allow for access by salmonids. This includes impacts to areas such as sloughs, side channels, remnant oxbows, ditches formed from channelized portions of natural watercourses or any area that may provide off channel rearing habitat for juvenile fish from the Duwamish River. This includes both temporary construction alterations and permanent modifications. Watercourses or wetlands draining to the Green/Duwamish River that have a hanging culvert, culvert with a flap gate, diversion, or any entirely man-made or artificial structure that precludes fish access should answer Yes to this question. Please circle appropriate response. NO - Continue to Question 3 -3 YES - Continue to Question 3 -3 3 -3 Will the project result in the construction of a new structure or hydraulic condition that could be a barrier to salmonid passage within the watercourse or the Green/Duwamish or Black Rivers? For the purpose of this analysis, a barrier means any artificial or human modified structure or hydraulic condition that inhibits the natural upstream or downstream movement of salmonids, including both juveniles and adults. Please circle appropriate response. NO - Continue to Question 3 -4 YES - Continue to Question 3 -4 3 -4 Will the project involve a temporary or permanent change in the cross - sectional area of a watercourse or the Green/Duwamish or Black Rivers? For the purpose of this analysis, the cross- sectional area is defined as a profile taken from the ordinary high water mark on the right bank to the ordinary high water mark on the left bank. Please circle appropriate response. NO - Continue to Question 3 -5 YES - Continue to Question 3 -5 3 -5 Will the project require the removal of debris from within the ordinary high water mark of a watercourse or the Green/Duwamish or Black Rivers? For the purpose of this analysis, debris includes, but is not limited to fallen trees, Togs, shrubs, rocks, piles, rip -rap, submerged metal, and broken concrete or other building materials. Projects that would require debris removal from a watercourse or the Green/Duwamish or Black Rivers as part of a maintenance activity should answer Yes to this question. Please circle appropriate response. NO - Continue to Question 3 -6 YES - Continue to Question 3 -6 January 25, 2001 5 Part D (continued) City of Tukwila. Screening Checklist 3 -6 Will the project result in impacts to watercourses or wetlands that have a surface connection to another watercourse or the Green/Duwamish or Black Rivers but do not contain habitat conditions that support salmonid use? Such areas may include, but not be limited to hillside seeps and wetlands isolated from the watercourse or river that have a surface water connection to the watercourse or river but are not assessable, nor would be assessable to salmonids under natural conditions. Wetlands with a "functions and values" rating for baseflow /groundwater support of 9 and above (or moderate) as describgd in Cooke (1996) should be included. Please circle appropriate response. NO - Continue to Question 3 -7 YES - Continue to Question 3 -7 3 -7 Will the project include the construction of artificial waterways or wetlands connected to a watercourse containing salmonids? For the purpose of this analysis, the construction of artificial waterways or wetlands includes wetlands, channels, sloughs, or other habitat feature created to enhance wildlife use, particularly waterfowl use, or may be attractive to wildlife, particularly waterfowl. Please circle appropriate response. NO - Continue to Question 3 -8 YES - Continue to Question 3 -8 3 -8 Will the project include bank stabilization? For the purpose of this analysis, bank stabilization includes, but is not limited to, rip -rap, rock, log, soil, or vegetated revetments, concrete structures, or similar structures. Please circle appropriate response. NO - Continue to Question 4 -0 (Page 2) YES - Continue to Question 4 -0 (Page 2) January 25, 2001 6 • CITY OF TUKWILA Department of Community Development 6300 Southcenter boulevard, Tukwila, WA 98188 Telephone: (206) 431 -3670 FAX (206) 431 -3665 E -mail: tukplan n,ci.tukwila.wa.us • SEPA ENVIRONMENTAL REVIEW APPLICATION NAME OF PROJECT/DEVELOPMENT: �® Nely a elf /©c� % .n es b� K gar I ouA ka � LOCATION OF PROJECT/DEVELOPMENT: (Give street address or, if vacant, indicate lot(s), block and subdivision, access street, and nearest intersection. LIST ALL 10 DIGIT PARCEL NUMBERS. 471_5" /- 8 and //02 /- �� ei0Gk 10) �O ►y Ct9 r. /JCs 4d 7Li ©r off' PA-4. on t! fag P 8-6 k,, Ca4 Quarte t`e Sec ion: � Township:o23 Range: (This information may be found on your tax statement.) DEVELOPMENT COORDINATOR : The individual who: • has decision making authority on behalf of the applicant in meetings with City staff, • has full responsibility for identifying and satisfying all relevant and sometimes overlapping development standards, and • is the primary contact with the City, to whom all notices and reports will be sent. Name: 4/414 S f . S71eJ z 1 / (� ( (� Address: (P `t' !S/ O Sou 7 vt eR• ►1 ,C I /0S. ,ce-`t' -4e gear %ar Phone:o� -0G �2 S!' V `" FAX: .Q-66 /q3— Signature: G:AAPPHAN LANDUSE.APP\SEPAAPP.DOC. 06/16/00 Date: . 4- o/ RECEIVED CITY OF Thy' FEB ° 7 ZHU PERMIT CENTS: FOR STAFF USE ONLY SIERRA TYPE P -SEPA Planner: File Number: ED 1_ C Application Complete (Date: ) Project File Number: 7 ra iC 11,04 Z Application Incomplete (Date: ) Other File Numbers: L 01- v' v NAME OF PROJECT/DEVELOPMENT: �® Nely a elf /©c� % .n es b� K gar I ouA ka � LOCATION OF PROJECT/DEVELOPMENT: (Give street address or, if vacant, indicate lot(s), block and subdivision, access street, and nearest intersection. LIST ALL 10 DIGIT PARCEL NUMBERS. 471_5" /- 8 and //02 /- �� ei0Gk 10) �O ►y Ct9 r. /JCs 4d 7Li ©r off' PA-4. on t! fag P 8-6 k,, Ca4 Quarte t`e Sec ion: � Township:o23 Range: (This information may be found on your tax statement.) DEVELOPMENT COORDINATOR : The individual who: • has decision making authority on behalf of the applicant in meetings with City staff, • has full responsibility for identifying and satisfying all relevant and sometimes overlapping development standards, and • is the primary contact with the City, to whom all notices and reports will be sent. Name: 4/414 S f . S71eJ z 1 / (� ( (� Address: (P `t' !S/ O Sou 7 vt eR• ►1 ,C I /0S. ,ce-`t' -4e gear %ar Phone:o� -0G �2 S!' V `" FAX: .Q-66 /q3— Signature: G:AAPPHAN LANDUSE.APP\SEPAAPP.DOC. 06/16/00 Date: . 4- o/ RECEIVED CITY OF Thy' FEB ° 7 ZHU PERMIT CENTS: CITY OF TUKI-VILA Department of Community Development 6300 Southcenter Boulevard, Tukwila, WA 98188 Telephone: (206) 431 -3670 FAX (206) 431 -3665 E- mail.: tukhlan(i Ci.tukwila.wa.its • SEPA ENVIRONMENTAL REVIEW Planner: Application Complete (Date: FOR ST4t USE ONLY SIERRA TYPE P -SEP,4 Application Incomplete (Date: File Number: NAME OF PROJECT/DE�VELOPMEN r i // '' (/.'fit /�' �)t / / -/ t).51• .1.1413c4.. y / � LS(C�I.C.r,1 �� to I ('fi �•� LOCATION OF PROJECT /DEVELOPMENT: (Give street address or, if vacant, indicate lot(s), block and subdivision, access street, and nearest intersection. LIST ALL 10 DIGIT PARCEL Project File tither: Other File tubers: 7/1/tile , , i ( 1 NUMBERS. 431 I h= ,,�:/ 2 / Vic, X10( � ) �' , ( (_, -Nt, f c � ,,V c1(; / /!4/ ( ")(JN "'`.. ..1„ may • Quarter: Section: Township:- Range: (This information may be found on your tax statement.) DEVELOPMENT COORDINATOR : The individual who: • has decision making authority on behalf of the applicant in meetings with City staff, • has full responsibility for identifying and satisfying all relevant and sometimes overlapping development standards, and • is the primary contact with the City, to whom all notices and reports will be sent. Name: Address: Phone:c 't Signature: 7lIC�.7•lc?. ( ) e1( e 1( FAX: �1It GA APPHANU.ANDUSE.APP■SEPAAPP.DOC. 06/10/00 Date: l- '/ 4.10.4 fps E01-• 0043 qq..42. LbkPL/" OPJ Please respon1all questions. Use separate sheets asOessary. Applicant Responses: 5. Animals Circle any birds or animals which have been observed on or known to be on or near the site: Birds: Mammals Fish Other awj? a -t�ngir�cs, other: Deer, bear, elk, beaver, other: z , ✓r,1 o nc„ e site or are Bass, salrfion : ou erring, �he`i)f`i1�j other: List any threatened or endangered species known to be on os.,_rie-DAle site. UN a'i`d c. Is the site partt of a migration route? If sod, explain. /14/ 75' %T /A-u t, a Proposed measures to preserve or enhance wildlife, if any: 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. _ /..r 1 C. l / \. • "�'I L/ I. J ,I (.i 1, - d G.\APPHANLLANUUSE.APP \SEPAAPP DOC, Oo/li/OO 9 Agency Com flit a+ tisJ 114 #444.1 -s o., s IT rollivM41.1 vsry 8Y BAI.e MMES STORM DRAIN SCHEMATIC DETENTION VAULT I C E Icicle Creek Engineers Geotechnical, Geologic and Environmental Services C. Thomas Foster R.A.L. Development and Venture Company 1420 NW Gilman Boulevard, #2206 Issaquah, Washington 98027 August 18, 1998 RECEIVED CITY OF T lie A. -1 FEB ° 7 2001 PERMIT CENTER Report Geotechnical Consultation Residential Development 51st Avenue S. and S. 111th Street Tukwila, Washington File No. 0133 -005 INTRODUCTION This report presents the results of our geotechnical consultation regarding the disposal of roof downspout water on four residential lots referred to as Lots 7/8, 5/6, 22 and 23/24 of the Pottery Works Addition in Tukwila, Washington. The lots are located northwest of the intersection of 51st Avenue S. and S. 111th Street on undeveloped property as shown on the Vicinity Map, Figure 1. Residential structures are planned on the subject Tots. We understand that the city of Tukwila has indicated that the preferred method of roof downspout water disposal is infiltration. You have requested that we observe the site conditions and provide information, as appropriate, for installation criteria for a downspout drain infiltration system. SCOPE The purpose of our services was to evaluate the shallow soil and ground water conditions as a basis for estimating a soil infiltration rate. The services provided by Icicle Creek Engineers consisted of: 1. Complete a site visit to observe existing site conditions. 2. Excavate four shallow test holes (one on each lot) to a depth of lour to six feet. 3. Field classify the grain size distribution of the soil regarding an estimated infiltration rate. 4. Provide recommendations for installation of a roof downspout infiltration system provided that the soil type(s) observed in the test holes are adequate for infiltration. SITE CONDITIONS GENERAL A geotechnical engineer from Icicle Creek Engineers conducted a site visit on August 12, 1998 to perform the geologic reconnaissance and excavate test holes to evaluate shallow subsurface conditions. The test holes were excavated using a shovel, digging bar, post hole digger and extendable hand auger. The property area is shown on the Site Plan, Figure 2. Icicle Creek Engineers, Inc., Meadow Creek Professional Center, 22525 SE 64th Place. Suile 202. Issaquah; Washington 98027 Telephone: 025) 557-1368 Fax: (•125) 557- -1369 C. Thomas Foster R.A.L Development and enture Company August 18, 1998 Page 2 SURFACE CONDITIONS The four lots are located on undeveloped property. From 51st Avenue South, the ground surface across the property area slopes gently to the west for about 100 to 150 feet, then slopes downward at about a 35 to 40 percent grade. The property is partially cleared and vegetated in local areas with dense brush and scattered trees. SUBSURFACE CONDITIONS Local geologic mapping by the U.S. Geological Survey (Waldron, H. H., et al, 1962 — Preliminary Geologic Map of Seattle and Vicinity, Washington) shows that the property area is mantled with "younger gravel." Younger gravel is described as "sand and gravel." Subsurface conditions at the property were evaluated by the excavation of four test holes (one on each lot). The locations of the test holes are shown on Figure 2. Observations of the ground water conditions were made as the test holes were excavated. The test holes encountered relatively uniform conditions consistent with regional mapping by the USGS (1964) as previously described. The following is a summary of soil and ground water conditions observed in the test holes: Test Hole TH- I (Lot 22) 0.0 — 1.5 feet Loose to medium dense fine sand with a trace of gravel 1.5 — 4.0 feet Medium dense fine to medium sand with a trace of gravel Test Hole TH -2 (Lot 23/24) 0.0 — 6.0 feet Loose to medium dense fine to medium sand Test Hole TH -3 (Lot 7/8) 0.0 — l .0 feet Loose fine to medium sand with scattered roots 1.0 — 4.5 feet Loose to medium dense fine to medium sand Test Hole TH -4 (Lot 5/6) 0.0 — 2.5 feet Loose to medium dense fine to medium sand with a trace of gravel and scattered roots 2.5 — 4.0 feet Medium dense fine to medium sand with a trace of gravel No ground water was observed in the test holes. CONCLUSIONS AND RECOMMENDATIONS We have reviewed standard design methods for disposal of roof downspout drainage using the King County Surface Water Design Manual (Section 4.5.1 Roof Downspout Infiltration Systems). Based on our review of these design methods for infiltration and soil /ground water conditions observed in the test holes, the surficial soils are suitable for infiltration of the proposed roof downspout disposal systems. Based on our visual classification of the soils encountered in the test holes, we recommend that an infiltration rate of 8 inches per hour be used for design of the roof downspout disposal systems at each of the four lots. Icicle Crock Engineers 0133005/081898 C. Thomas Foster R.A.L Development and litre Company August 18, 1998 Page 3 USE OF THIS REPORT We have prepared this report for R.A.L. Development and Venture Company. When the design has been finalized, we recommend that the final design drawings and specifications be reviewed by our firm to see that our recommendations have been interpreted and implemented as intended. Within the limitations of scope, schedule and budget, our services have been executed in accordance with generally accepted practices in this area at the time the report was prepared. No warranties or other conditions, express or implied, should be understood. * * * * * * * * * * * * * * * * * * ** We appreciate the opportunity to provide geotechnical services on this project. If you have any questions or if we can be of further assistance, please call. EXPIiiES 10 • 3 .) - `(t3 J Document ID: 0133005.REP Two copies submitted Yours very truly, Icicle Creek Engineers, Inc. ) y Brian R. Beaman, P.E. Principal Engineer /Geologist Icicle Creek Engineers 0133005 /081898 I:g�I:7iKl e1:� iIl �ikKi I.1 c. .. 4"�: it 'a sVa t Talfilii-,-,-oRgala4.1s PAtorrtARtre . t r I /NNW waffillsilliik ' Project Site 4 01111,131,11k Mir W.■ 'USA 'C\ NPO Icicle Creek Engineers don (ww.topomoJ 0 2,000 4,000 Scale in Feet Vicinity Map - Figure 1 RAR:BRB:08 /13/98 Job No. 0133 -005 • '' • • • 4 3 2 1 Base map provided by RAL Development and Venture Company 0 21 S. 111th Street 40 80 Approximate Scale in Feet . 26 Explanation: 4H-1 Test hole location 51st Avenue S. Icicle Creek Engineers Site Plan - Figure ..„ • , , aliJIIN 1111111111011!"!!r, .!••■=1, - 111111111iit;'-1-4-4: 1111 • ;'(•••!:r . N 87'48' 32•14, 117.00' Site Information Lot Area - . Existing combined area of lots - 49.129 rgit Baildine Footprint Am Unit 'A' 937 sq.fL of 'A' units - 4 Total sq. footage - 3943 sqA Unit B'- 750 m.0. No. of'B mio 3 • .Tool sq. footage .6000 sq.ft Total ovum footage of an units = 9943 sq. 8. Percentage of lot cove .ge — 9943/49.129 a 20.2% EXISTING ASPHALT .. • PARKING LOT 87'48' 3r W ._ 115.41' FIRE LANE (NO PARKING) 45'1•4;1 PAV5121 vE :1,YM Ciee C� ■let. IXIEEEIE► 0 roita 149,a1:11752:hr5Egi Vicinity Man 11111111111 PAW ALL WOW .. Aft161tRttslf ,, City of Tukwila Zoning Map `.. December 4. 1995 drawn by. • VACATED SOUTH 111th .•N87'48'3rW Land Use Plan LEGEND Site Plan r'- 20'a'. TELEPHONE POLE POWER POLE WATER METER REBAR (FOUND OR BE1) FIRE HYDRANT SANITARY SEWER UNE SANITARY SEWER MANHOLE. • =SCALE : 1" = 2 18s8 - 1858 ammIrsals Pottery Works Townhomes 519t .Avenue South Seattle, Washington,., RAL Development and Venture Company STEPHEN TAPP 1906 EAST ALOHA ' SEATTLE, WASHINGTON 98112 PHONE (206) 320 -0534 FAX (206) 329 -8424 Pottery Works Townhomes 51st Avenue South Seattle, Washington RAL Development and Venture Company STEPHEN 'TAPP. ARCHITECT 1906 EAST ALOHA SEATTLE, WASHINGTON 90112 PHONE (206) 320 -0534 • FAx (206) 329 -8624 1111111 1111111 11111r1111111111 ll...,.11lllllllllll,lrll.— UNIT A - GARAGE- LEVEL' ". SCALE 1/8" = 1' . UNIT A - 2ND LEVEL SCALE: 1/8" = 1'. UNIT A - 3RD LEVEL SCALE: 1/8 = 1' Elevation at Building Containing Two Units A' uon IN MN II =MI MN u o ua a lnu .o nu Y..Iluntilllllllllllll: 7 ....._ 77773" �I�IIIIIIIIItII1III11ilillllili project manber. TOOC3" Elevation at Building Containing Four Unito'B /C' ' UNIT B/C - GARAGE LEVEL SCALE: 1/8" = 1'..° UNIT B/C - 2ND LEVEL SCALE: 1/8" = .1' UNIT B/C - 3RD LEVEL SCALE: 1/8". = 1' Materials Schedule . -.. Brick veneer"" .. ..,� Painted Cedar Siding . I :..°, .. Exterior Stucco - - ....Roof Material to be Composition Shingle Window and door trim to be Painted Cedar FENCE ALOHc 115.40 CAL4.. PROPERry. LINE. ���.. \., t4 z LEGEND: fONND ntlN.M C•E . SET 45:174E501P4 11& • = FOUND I. IRON PIPE . �. FOUND Ls. WIN OIP ROAR FIRE HYDRANT . eRA,BR'NEre» DESCRIPTION: :... LDTs i T) 8 AND LOTS 21 10 u., 81DCK 10, PBTTERy 103/0:5 ADDnoN, ACCORDING T] THE PUIT 1MEREOF RECORDED IN VOWME 5 OF PLATS, PAGE 86 RECDRAs OF KW& COUNTY 'wIlSND16fDN'- EXCEPT TWIT PORTDN OF SAID LDT 21, IF ANY, LYIN&. WITHIN THE CTTY OF 5EAT'RP PIPE UNE RI&wT.rs. WAY,BSMILISHO Sy CnY ¢ SEAITE 8 M = 358.10 (CT/ of SEATTLE VERn. DATUM O 5.E. CORNER 3'X5'32110. FOUNDATON Ibg METER. BOX €.S.W. CORNER '$. LEO.S7REE.T (3.112S S1 ) 4 51AZ AVENUE $.' INTFJLSEGTOW. SEE UIy. F.5 :23493,•. 0 GFOUNTAIIf 5TH / / / / /' / / /�� //� nJ... NOTE: INSTRVMENTIMON "FOR llRs 9JRVEY WAS A.5 SECOND 1 x0001. TE 4 MO.17Mo USINRE •MEAILOUNA. UNIT ,METHODS user, • PEAPoRN.TN6 3URYEY 'EXCEED D MINIMUA STANDARDS of u//c. 332 -150- 010... ASPHALT PARKING AREA SURVEYOR CERTIFICATE: I CERTIPY 7PIR1 7HO Ave REP[ESEN7S'A TDPDSRAPNY ., . SURVEY ONLY PERPQ41m - UNDER' MY DIRECTION IN. MAR 1,- 1997,ATTNH_ REQUEST OF. 70M FOSTER:._ 5 -frr . Ii .i [J t+7 _ Li .. tc' « Ell onowoowstwooN to c41.kaea nnnnn IsTmews„, An- A*4144c. / GaMMOJ! PLANT NAME Geer rabr ./ rrd .Matpt, ate,- . %Atrrn?oia6S . r tro eca/ /I f7rvnas K hi /Her/ '5pirrl jc bp chug" ?ea/ /2 aaer eirzrhafia, wine .ram 8'h• /2: ,5he;a p/%cata. 4L2/ i-van cedar 5'�ht 30:. /v3GVS/oftxva merle/es/1/ j ao,V /os .17 Aq„a c /dentohs `emorrsld jgnaw/a' ar+E %!ra , 6 ht is �►tir1' /Ytstii /P4,-/ ova/ LT.. r h a d a d u j d e r n s 0 pjrh 2® m a r ? Q S x r e p s c h e e r ® ?v p,s4a+wt * r5t d° etanyn,ovs ea* 'cOMpOet+' /dmf"A' arinked Guv+ynwvs.' 5- / 141 1/' izr,:'roma: a' / 4 �a/ ll /mho-7M. o7r�rS /iron, /DPria" jreapG 5 Ja/ 62 qra i'7e encorum /t/arv/and : d.926ne 2 ya/ //1, cormro .5ib/vnf O€ ' /eviromea jyo/ /Gai74rly doya rrod 5 ya/ u ealbvla Gtr /views- /ic■rselyi Aolz:veacs'ir',' .15-c301 fut+n 'i /dMrAarr' U5 ,i j/'sh heasiel 5�21 2'7 huNdiertly74 /rlmG iy / /ve b /oC/ i ilc irlro ti V itt IC 42/k_tOdf)CYO/unc- uiasri0corns / br/S no' r' devorb ca j Jeffry rbro,Aek, ,L1'5 . / /vroawsus ;zabe/r'na' /Aripe/. /Arne/.. - viburnum - f fi,vf S1:0°r'n9 11/ei' j /aGlfrUr ,'irvs Cua97,s7JuSVKPoaiq evieo -ver jaY+•/hix5 Ja1 v&ryywss pious: „ o.� re EA Eli /7 IFA — .��fl�daGi:ri .. A.e. •. tzv& '/ min.. Fudd/e a� • , ,Ific -tze ij/m/r dole* /8 •T • zooe fie* /New -o" d..". • ckre...- Pad . -. FEB - 7 STATE OF WASHINGTON REGIS FRED LANDSIAP.FF ARCHIE T • CZ nil, KWIC o.4