Loading...
HomeMy WebLinkAboutSWP272071(7) ACTIVITY EARLY EARLY JAN FEB I MAR APR I MAY J DESCRIPTION START FINISH 4 11 IQ 29 1 8 SUBMIT SHORELINE/SITE PLAN PERMIT PACKAGE 13JAN92A 13JAN92A SUBMIT SHORELINE/IISITE PLAN PERMIT PACKAGE ® I PRELIMINARY STAFF REVIEW OF CHECKLIST 14JAN92A 20JAN92A PRELIMINARY STAFF REVIEW OF CHECKLIST 8 RENTON ACCEPTS CHECKLIST 20JAN92A 20JAN92A RENTON ACCEPTS CHECKLIST FORMAL STAFF REVIEW OF CHECKLIST 21JAN92A IOFEB92 FORMAL STAFF REVIEW OF CHECKLIST STAFF REPORT TO TECHNICAL ADVISORY COMMITTEE IIFEB92 17FEB92 ISTAFF REPORT TO TECHNICAL ADVISORY COMMITTEE TECHNICAL ADVISORY COMMITTEE REVIEW (TUES) 18FEB92 IBFEB92 TECHNICAL ADVISORY COMMITTEE REVIEW (TUES) STAFF REPORT TO ENVIRONMENTAL REVIEW COMMITTEE 19FEB92 24FEB92 STAFF REPORT TO ENVIRONMENTAL REVIEW COMMITTEE E.R.C. ISSUES DETERMINATION (WED) 26FEB92 26FEB92 E.R.C. ISSUES DETERMINATION (WED) 0 » DETERMINATION NOTICE PUBLISHED 27FEB92 27FEB92 DETERMINATION NOTICE PUBLISHED COMMENT PERIOD (ASSUMES DNS—M) (MON) 2MAR92 16MAR92 COMMENT RIOD (ASSUMES DNS—M) (MON) REVIEW COMMENTS/PUBLISH APPEAL NOTICE 17MAR92 20MAR92 _ R❑EVIEW~COMMENTS/PUBLISH APPEAL NOTICE MDNS APPEAL PERIOD 23MAR92 5APR92 MDNS APPEAL PERIOD PUBLIC HEARING NOTICE 6APR92 18APR92 PUBLIC HEARING NOTICE STAFF REPORT ON PUBLIC HEARINGS 6APR92 9APR92 STAFF REPORT ON PUBLIC HEARINGS PUBLIC HEARING REPORT SUBMITTED 9APR92 9APR92 PUBLIC HEARING REPORT SUBMITTED PUBLIC HEARING (TUES) 21APR92 21APR92 PUBLIC HEARING (TUES) HEARING EXAMINER ISSUES REPORT 22APR92 5MAY92 HEARING EXAMINER ISSUES REPORT LAND USE APPEAL PERIOD 6MAY92 19MAY92 LAND USE APPEAL PERIOD SHORELINE APPEAL PERIOD 20MAY92 19JUN92 SHORELINE APPEAL PERIOD a ISSUE SHORELINE PERMIT 22JUN92 22JUN92 ISSUE SHORELINE PERMIT 0 Activity Bar/Early Dates Sheet i of i INTEGRATED SITE DEVELOPMENT SCHEDULE O Critical Activity Date ev's a on Checked ve ® Progress Bar LONGACRES PARK -------• Activity Late Dates MDNS PROCESS Target Dates as of 27DEC91 Project Start : 26MAR90 Data Date: IOFEB92 Primavera Systems, Inc. 1984—i99i Protect Finish: 1BAUG94 Plot Date. IOFEB92 CITY OF RENTON MEMORANDUM DATE: March 17, 1992 TO: Lenora Blauman FROM: TA- Dick Anderson STAFF CONTACT: Ron Straka 40 SUBJECT: SW 16TH STREET STORM SYSTEM AND THE CITY OF TUKWILA NELSON PLACE/LONGACRES WAY STORM INTERCEPTOR The following conditions shall apply to the Boeing Company's Customer Service Training Center improvement of the SW 16th Street. 1 . The contributing runoff between stations 22+00 and 18 +00 can be connected to the City of Tukwila's Nelson Place/Longacres Way storm interceptor. No other intermediate connections to the interceptor are allowed. The street storm system must be designed to meet City of Renton Storm and Surface Water Drainage Ordinance. This includes water quality treatment (i.e. biofiltration and wetponds), detention, and conveyance standards. If the Boeing Company is requesting a detention credit for the on-site pond, which will allow waiver of detention requirement for the SW 16th Street runoff, the Boeing Company must provide calculations which show that the post-developed flows of the on-site detained runoff, plus the SW 16th Street un-detained post- developed flows, do not exceed the pre-developed on-site runoff flows plus the pre-developed SW 16th Street runoff flows. The water quality requirements still must be satisfied. The SW 16th Street storm system and the City of Tukwila Interceptor will require Department of Fisheries approval (HPA permit) and may be subject to their additional water quantity/quality requirements. 2. The City of Tukwila Nelson Place/Longacres Way Storm Drainage System report is a master drainage plan which recommends the construction of a 42" storm interceptor. The Boeing Company has proposed to design and construct a 48-inch interceptor prior to the completion of the street improvements. The interceptor shall be designed in accordance to the City-adopted 1990 King County Surface Water Design Manual. The Boeing Company shall provide the Lenora Blauman SW 1 6th Street Storm System Page 2 City of Renton sizing calculation for the interceptor in accordance with the City's design standards which includes a backwater analysis to the system for the 25-year, 24-hour and 100-year, 24-hour design storms. It must be demonstrated that the line meets the City's storm drainage standards and any connection to the interceptor will not result in flooding of SW 16th Street. If the connection of a portion of the SW 16th Street runoff to the Nelson Place/Longacres Way storm interceptor does not meet the design standards, then a separate storm system for SW 16th Street will be required, or the Boeing Company can integrate the SW 16th Street runoff in to their on-site stormwater system. 3. The approval of the City of Tukwila Nelson Place/Longacres Way storm interceptor will be subject to review by the City of Tukwila Public Works Department. The Boeing Company can apply to the City of Tukwila for a Latecomer's Agreement to recover portion of the storm interceptors design and construction cost from future developer connections in the City of Tukwila. The City of Renton cannot guarantee that the Boeing Company will receive partial or full reimbursement for the lines construction from the City of Tukwila. The Latecomers Agreement will be between the City of Tukwila and the Boeing Company. The constructed street storm system (including the City of Tukwila's Nelson Place Longacres Way storm interceptor) shall be turned over to the City of Renton once accepted and prior to final occupancy permit issuance by bill of sale. The storm interceptor will then be turned over to the City of Tukwila via a franchise agreement with the City of Renton. 4. The Boeing Company must accept the existing runoff (18 cfs) which currently flows through the site from the City of Tukwila as identified in the Nelson Place Longacres Way Drainage Report. The temporary diversion of this flow may be allowed during construction only. Prior to the final occupancy permit issuance the diversion shall be removed. 5. In City right-of-way the spacing between catch basins is 150 feet if the street's grade is less than 1 %; 200 feet for street grades less than 3%; and a maximum of 300 feet for street grades greater than 3%. Vane grates are required on catch basins for slopes greater than 8%. A portion of the currently proposed SW 16th Street storm system does not appear to meet these standards. D:92-177:RJA:RJS:ps CC: Randall Parsons Bob Mahn CONCURRENCE DATE 3 Z tNAMEINI VDATE CITY OF RENTON ----_ MEMORANDUM DATE: March X, 1992 TO: Lenora Blauman FROM: Dick Anderson STAFF CONTACT: Ron Straka SUBJECT: SW 16TH STREET STORM SYSTEM AND THE CITY OF TUKWILA NELSON PLACE/LONGACRES WAY STORM INTERCEPTOR The following conditions shall apply to the Boeing Company's Customer Service Training Center improvement of the SW 16th Street. 'T �K � 1 . The Stfwrunoff between stations 22+00 and 18+00 can be connected to the City of Tukwila's Nelson Place/Longacres Way storm interceptor. No other »�• connections to the interceptor are allowed. The street storm system must be designed to meet City of Renton Storm and Surface Water Drainage Ordinance. This includes water quality treatment (i.e. biofiltration and wetponds), detention, and conveyance standards. If the Boeing Company is requesting a detention credit for the on-site pond, which will allow waiver of detention requirement for the SW 16th Street runoff, the Boeing Company must provide calculations which show that the post-developed flows of the on-site detained runoff, plus the SW 16th Street un-detained post-developed flows, do not exceed the pre-developed on-site runoff flows plus the pre-developed SW 16th Street runoff flows. The water quality requirements still must be satisfied. The SW 16th Street storm system and the City of Tukwila Interceptor will require Department of Fisheries approval (HPA permit) and may be subject to their additional water quantity/quality requirements. 2. The City of Tukwila Nelson Place/Longacres Way Storm Drainage System report is a master drainage plan which recommends the construction of a 42" storm interceptor. The Boeing Company has proposed to design and construct a 48-inch interceptor prior to the completion of the street improvements. The interceptor shall be designed in accordance to the City-adopted 1990 King County Surface Water Design Manual. The Boeing Company shall provide the City of Renton sizing calculation for the interceptor in accordance with the City's design standards which includes a backwater analysis to the system for the 25-year, 24-hour and 100-year, 24-hour design storms. It must be Lenora Blauman SW 16th Street Storm Ostem Page 2 demonstrated that the line meets the City's storm drainage standards and any connection to the interceptor will not result in flooding of SW 16th Street. If the connection of a portion of the SW 16th Street runoff to the Nelson Place/Longacres Way storm interceptor does not meet the design standards, then a separate storm system for SW 16th Street will be required, or the Boeing Company can integrate the SW 16th Street runoff in to their on-site stormwater system. 3. The approval of the City of Tukwila Nelson Place/Longacres Way storm interceptor will be subject to review by the City of Tukwila Public Works Department. The Boeing Company can apply to the City of Tukwila for a Latecomer's Agreement to recover portion of the storm interceptors design and construction cost from future developer connections in the City of Tukwila. The City of Renton cannot guarantee that the Boeing Company will receive partial or full reimbursement for the lines construction from the City of Tukwila. The Latecomers Agreement will be between the City of Tukwila and the Boeing Company. The constructed street storm system (including the City of Tukwila's Nelson Place Longacres Way storm interceptor) shall be turned over to the City of Renton once accepted and prior to final occupancy permit issuance by bill of sale. The storm interceptor will then be turned over to the City of Tukwila via a franchise agreement with the City of Renton. 4. The Boeing Company must accept the existing runoff (18 cfs) which currently flows through the site from the City of Tukwila as identified in the Nelson Place Longacres Way Drainage Report. The temporary diversion of this flow may be allowed during construction only. Prior to the final occupancy permit issuance the diversion shall be removed. 5. In City right-of-way the spacing between catch basins is 150 feet if the street's grade is less than 1 %; 200 feet for street grades less than 3%; and a maximum of 300 feet for street grades greater than 3%. Vane grates are required on catch basins for slopes greater than 8%. A portion of the proposed SW 16th Street storm system does not meet t ese standards. D:92-177:RJA:RJS:ps OC. -?-A IN 04-- f I��.Lrr� \S�4J✓-L�r� 3"�, �hv, City of Tukwila Q � +y`: '0 6200 Southcenter Boulevard Tukwila, Washington 98188 John W. Rants,Mayor t' 1908 March 13 , 1992 _ crrr of PZxron RE C E i V ED MAR 1 7 1992 Don Erickson City of Renton zoning Administrator `s BU LDING DIVISION 200 Mill Avenue South Renton, WA 98055 RE: Comments to D.N.S.-Mitigated for ECF;SA;SSM;V-006-92: Boeing Commercial Airplane Customer Service Training Center Dear Mr. Erickson, The City of Tukwila requests that tJsubect D.N.S . not be finalized until a full analysis of to the City of Tukwila is completed and all significant admpacts are mitigated. This request is pursuant to a etween Renton and Tukwila staffs that Tukwila would be provided the same analyses it would normally receive in reviewing any other project (Blauman/Umetsu, 2/4/92) . Our City Engineer has identified the following deficiencies in the existing SEPA checklist: 1. The Boeing CSTC checklist provides no information on transportation affects in Tukwila; particularly along Interurban and W. Valley between I-5 and So. 180th Street. No information is provided on Southcenter Blvd. from Interurban to I-5 . Normal peak hour volumes and LOS affects need to be evaluated for these two corridors . 2. Drainage needs to be addressed and whether it is being considered as being conveyed in the future Longacres/Nelsen Place connector to the PI channel. 3. All of the Boeing facilities in Tukwila generate pedestrian traffic, especially at noon. This facility checklist should address connections to the Green river and Interurban trails for pedestrian and bicycle traffic. Phone:(206)433-1800 • Clty Hall Faz .206)433-1833 Please have the impact analysts contact Ron Cameron, City Engineer at 433-0179 to establish the specific data and analyses required for Tukwila to begin its substantive review of project impacts . Vernon Umetsu of my staff is also available to answer general questions at 431-3684. Sincerel , L. Rick Beeler, SEPA Responsible Official cc: McFarland/Cameron/file MILES CONSULTING (208)451-2138 SUITE 211 -BLOG 2 300- 1201h AVE.N.E. BELLEVUE,WA 98005 V���ACS I M I I�E_ALI�MA I L 17 March 1992 Mr Donald K Erickson, AICP Secretary to the ERC City of Renton Planning Department 200 Mill Ave So. Renton, WA 98055 Ref : Comments on Mitigated DNS ECF; SA;SSM;V-006-92 Boeing Commercial Airplane Customer Service Training Center First let us advise that we commented on the development of the Boeing Property at Longacres during the request for scoping input in December 1991 . In the correspondence of 5 December 1991 from Davis Wright Tremaine to the City of Renton we raised issue which we consider very important in the overall development of these lands . We believe the issues pointed out at that time should be totally addressed at the time any part of the total lands are developed. We believe there is need for clarification of item 8 discussing the analysis of traffic. It is important to have an understanding of the total traffic expected from the 212 acre property and to address these movements prior to the completion of a part of the development, ie 51 acres . Thus the statement should point out that the section a is a subsection of a larger traffic management plan. This overall plan should be available for review With review of the proposed project . The project map shows street networks including a Longacres Drive SW and South 158th Street. It is misleading to imply that these streets are available for use to this project as neither are City Streets. Both of these street should be removed from the planning documents and it so stated in the record that neither road is a public street. Any traffic analysis in the review files showing traffic movements south from the terminus of SW 16th Street should state that the traffic will not be using the private road traveling west to the terminus of South 158th Street in the City of Tukwila. ; We find in the review file the planning of storm drainage line handling the storm runoff from the Nelson Place/Longacres Way basin to the P-1 Channel . Both the location and the quantities of water which were outlined in the basin study have been changed. The flows that were proposed in the 48 inch interceptor partially constructed and the 24 inch existing culvert required otherwise the development to the west will suffer effects of flooding. We believe the outflow location can possible be relocated but we feel there is a need to coordinate such changes . The use of the nelson Place/Longacres Stormwater Design Report was made apart of the mitigated DNS of the McLeod Project immediately to the west of the Boeing Project thus it is being used in planning storm drainage design. Again we wish to point out that we are supportive of the Boeing project and that the purpose of our comments is to insure the best possible access, circulation, traffic planning and utility installation with the least interruption to the McLeod Project. Coordination of the issues raised is very important. We appreciate the opportunity to comment on the Mitigated DNS and hope our comments are used in the constructive fashion in which they are offered. Res Z bmitted, Iles Consulting Enclosure cc Stuart McLeod Thomas Goltz David Markley �J��IILA, d'I�,gcP 2 City of Tukwila J= � Q 6200 Southcenter Boulevard • Tukwdla, Washington 98188 John W. Rants,Mayor 1908 March 4, 1992 Ms. Lynn Guttman Public Works Administrator City of Renton 200 Mill Avenue South Renton, Washington 98055 Dear Lynn: SUBJECT: Nelsen Place/Longacres Way Storm Drain Interceptor We welcome the opportunity to discuss the surface water interceptor line that will carry water to the P-1 channel from the Nelsen Place/Longacres Way drainage area. Your letter listed the following seven topics: 1 . Tukwila - Renton agreement status. A copy of the signed August 11, 1986 agreement is enclosed. Paragraph 4 spells out that Renton agrees to assume Tukwila' s share of P-1 maintenance and construction costs and that Tukwila retains the right to connect to and use the P-1 . 2. Is Tukwila requiring Boeing (CSTC) to install the interceptor? This subject has not been addressed at this time. 3. Status of developments served by the interceptor. The Hampton Inn and Embassy Suites developments have received occupancy permits and completed drainage work. The exhibition hall is in the development review process. 4. City of Tukwila stormwater standards. We use King County standards. 5. What is Tukwila' s position regarding Boeing' s request to connect their Renton development site to the interceptor? We would consider the request. Additional evaluation of the capacities needed and available, funding participation, affects of any increases, and similar information would be needed for our consideration. We would like to know more about Renton' s position of not wanting Boeing to have access to the interceptor pipe. Phone.(206)433-1800 9 City Hall Fax (206)433-1833 Ms. Lynn Guttman March 4, 1992 Page 2 6. Tukwila' s review and approval requirements for the interceptor. I am not sure if this request is for the original design report work, SEPA, the PS&E work, or for work with developments. We would be glad to share how we review these tasks with you. 7. SEPA status of the interceptor. A Longacres/Nelsen Place plan SEPA DNS was issued August 24, 1989. We look forward to continuing our work with you on issues of mutual interest. Sincerely, Ross A. Earnst, P.E. Director of Public Works RMC:RAE/kip Enclosure M YM I T . -�iW�cll From: Return -TV�5 �s to Ms-k- Keep or togs nMI post-It-F.Y.I.pad 7669CfL�� -}- INTERLOCAL AGREEMENT REGARDINGcF� �n- THIS AGREEMENT is entered into between the City of Tukwila, hereinafter referred to as "Tukwila", and the City of Renton, hereinafter referred to as "Renton". WHEREAS, the Cities of Renton and Tukwila are authorized by Chapter 39.34 RCW to enter into agreements for the purpose of interlocal cooperation, and WHEREAS, the Tukwila City Council has passed Resolution No. 1008 , which indicates Tukwila' s willingness to accept annexation to Tukwila of certain property currently located within Renton and more particularly described on Exhibit A attached hereto and incorporated herein by this reference as if fully set forth to Tukwila, and calls for certain property currently located within Tukwila and described on Exhibit B attached hereto and incorporated herein by this reference as if fully set forth to be annexed to Renton, and WHEREAS, the Renton City Council has passed Resolution No. a2�S/ which calls for certain property currently located within Renton and more particularly described on Exhibit A to be annexed to Tukwila and indicates Renton' s willingness to accept annexation of certain property currently located within Tukwila and more particularly described on Exhibit B to Renton, and WHEREAS, both Resolutions recognize that there are issues of concern to both Renton and Tukwila that must be mutually resolved and Renton and Tukwila desire to enter into an interlocal agreement to resolve these issues, now, therefore FOR AND IN CONSIDERATION OF the mutual benefits and conditions hereinafter contained, the parties hereto agree as follows: 1. Scope and Effect of. Agreement. It is the intent of the parties to resolve issues of mutual concern with respect to pending reciprocal annexations. This Agreement shall become effective and shall bind the parties upon completion of the latter of the annexation of the property described on Exhibit B to Renton and annexation of the property described on Exhibit A to the City of Tukwila. In the event that, for any reason, one or both of the. above referenced annexations are not completed, then this Agreement shall be null and void. 2. Strander Boulevard/S. W. 27th Street Improvements. Local costs of the future crossing of the railroad tracks by Strander Boulevard/S. W. 27th Street should be shared equitably between the two parties. In pursuit of this Agreement, both Cities agree , to designate . the aforementioned improvement of Strander Boulevard/S. W. 27th Street as a high priority item on each City's Transportation Improvement Plan, and each provide one-half of the local funds needed to match an 80% federal funding for this road improvement project. Because the timing of this street extension is uncertain, Renton and Tukwila agree to monitor development and, as development warrants, to acknowledge that the route is needed and that both jurisdictions will cooperate to insure that an appropriate connection is designed and constructed. Because the crossing will be located entirely within Tukwila upon completion of the annexation., the final decision as to the time for improvement shall be left to the discretion of Tukwila. If . federal funding is unavailable, then Renton and Tukwila will negotiate an equitable funding option as necessary, such that each cities' share of the local costs of the improvement shall be 50%. 3. S. W. 43rd Street/S. 180th Street Improvements. If a proposed grade separated crossing of S. W. 43rd and the railroad tracks is undertaken to improve traffic safety and capacity, the Interlocal Agreement Regarding Reciprocal Annexations Page 2 local costs should be shared equitably between Renton and Tukwila. The two Cities shall support the S. W. 43rd Street/S. 180th Street improvement in the same manner as the Strander Boulevard/S. W. 27th Street railroad crossing. By support, it is meant that both Cities will designate this road improvement as a high priority item on each Cities' Transportation Improvement Plan and each provide one-half of the local funds needed to match an 80% federal funding for this road improvement project. If federal funding is unavailable, then Renton and Tukwila will negotiate an equitable funding option as necessary, such that each cities' share of the local costs of such road improvement shall be 50%. Because the improvement will be located entirely within Tukwila upon completion of the annexation, the final decision as to the time for the improvement shall be left to the discretion of Tukwila. 4. P-1 Channel . The P-1 Channel is a storm drainage improvement to be located within that property described on Exhibit B which will be annexed to Renton. Renton agrees to assume what would have been Tukwila' s share of the cost of construction and maintenance for that portion of the P-1 Channel which will be located in said area. The City of Tukwila shall retain the right to connect to and use the P-1 Channel . 5. Green River Dike Maintenance. Renton' s share of the cost of the Green River Dike Maintenance Plan was 22% prior to the reciprocal annexations. Construction and maintenance costs for the Green River Dikes should be revised to reflect the fact that Renton will not have Green River frontage after the reciprocal annexations are completed and that therefore Renton should have no obligation for dike maintenance or rehabilitation. 6. Frank Zepp Bridge. Upon completion of the reciprocal annexations, the Frank Zepp Bridge at S. W. 43rd Street/S. 180th Street will be located entirely within the City of Tukwila. Tukwila agrees to assume all costs of maintenance and future widening for the bridge. Both parties understand that with the annexation of the property described on Exhibit A to Tukwila, the responsibility for maintenance and operation of the traffic signals at the intersection of S. W. 43rd Street and West Valley Road (SR-181), formerly shared by the Cities of Renton and Kent, should be assumed in total by the City of Kent. 7. Utilities. Both parties understand that Renton has existing utilities serving a portion of the area to be annexed to the City of Tukwila bordered by S. W. 43rd Street, West Valley Highway, the existing Renton City limits and the Union Pacific . Railroad right-of-way. Renton shall retain ownership of the said existing utilities and shall be responsible for all costs of operation and maintenance of the same. Tukwila shall be responsible for providing sewer and water service to all other areas annexed to Tukwila as part of the reciprocal annexations. Neither party shall impose a surcharge upon utility users within the newly annexed areas solely because of their annexation. 8. SR-181. The City of Renton should enter into an agreement with the State of Washington regarding the transfer of costs to the State for improvements to .SR-181 between S. W. 43rd Street and I-405. The City of Tukwila shall bear no responsibility for such costs by virtue of the execution of this Agreement. 9., Future Annexations. Renton and Tukwila will coordinate review of future annexation petitions received by the parties consistent with the boundary line shown on Exhibit C attached hereto and incorporated herein by this reference as if set forth in full . Interlocal Agreement Regarding Annexations Page 3 10. Entire Agreement. This Agreement constitutes the entire agreement between the parties and no other agreements, oral or otherwise, shall be deemed to exist or to bind the parties hereto. DATED this Z�/_day of 1986. CITY OF TUKWI -A CCIIT-Y OF RENTON `�k t C�k Cc �✓Y' ��LI2.L�CJ Cam►"�J G RY L. VAN DU EN, MAYOR BARBARA Y. SHIN OCH, MAYOR M XI E ANDERSON, CITY CLERK MAXINE E. MOTOR, CITY CLERK APPROVED AS TO FORM: APPROVED AS TO FORM: OFFICE OF THE CITY /ATT NEY CITY ATTORNEY �3AMES E. MANY ' /' LAWRENCE J. WAR EN, CITY ATTORNEY EXHIBIT A Lands to be Annexed to Tukwila from Renton_ The lands proposed to be annexed to the City of Tukwila from the City of Renton are listed below and shown in Figure 1. SECTION-TOWNSHIP-RANGE PARCEL ACREAGE 3.62 NW 1/4 of Sec. 24, Twn. 23, Roe. 4 27 (portion) 12. 79 SW 1/4 of Sec. 24, Twn. 23, Rge. 4 63 2.35 32 0.27 28 3.85 7 MDC 4.55 NW 1/4 of Sec. 25, Twn. 23, Rge. 4 38 1.84 0.91 8 MDC (p) 2.91 1.14 9 MDC (p) 3.05 43 2.15 50 0.84 51 0.72 23 2.16 6 6.70 2. 16 24 (portion) 44.10 21 MDC 2.45 2.16 22 (portion) 10.47 SW 1/4 of Sec. 25, Twn. 23, Rge. 4 21 1.61 59 0.37 20 2.14 33 3.69 17 5.93 3.01 23 (portion) 10.43 24 (portion) 5.44 44.10 22 3.01 NW 1/4 of Sec. 36, Twn. 23, Rge. 4 97 3.00 57 8.69 62 6.40 61 0.17 11 6.83 43 0.10 37 0.17 38 0.14 39 0.14 53 0.14 14 0.12 13 0.12 29 0.32 10 0.14 9 0.19 59 0.15 8 0.17 1.7 0.12 35 2.84 34 I 5.54 36 3.09 I I TOTAL 45 parcels 101.65 f �►. h 1 - Renton-Tukwi Aundary Adjustment Map of Affected Areas 11 Lands to Renton t y.� ILI- rl �r r " Y n . u '�1 J 11 11 L==: - I ♦ 11 1� I / 7 � titi .KL 1 . _ _ �*d••^ LC CACRSS 7 � / Lands to Tukwila r Lands to Renton - SWASWW ..' Lands to Tukwila M .� •y I + rti�r\wf .. 1 1 l 1 t' N O 20cc, C �1 tY.R. City 11..7• 1 EXHIBIT B 1 Lands to be Annexed to Renton from Tukwila The lands proposed to be annexed to the City of Renton from the City of Tukwila are listed below and shown in Figure 1. SECTION-TOWNSHIP-RANGE PARCEL ACREAGE SW 1/4 of Sec. 25, Twn. 23, Rge. 4 41 19.05 4 23.44 NW 1/4 of Sec. 25, Twn. 23, Rge. 4 42 16.03 SW 1/4 of Sec. 25, Twn. 23, Rge. 4 19 40.21 SE 1/4 of Sec. 14, Twn. 23, Rge. 4 0160 (portion) 11.79 0145 .29 0155 (portion) 1.29 0150 1.49 0320 .28 0330 .02 Lot n2 .12 TOTAL 11 parcels 114.01 r -�� 1 Renton-Tukwi Boundary Adjustment y Map of Affected Areas I. Lands to Renton r; ILL r: Y J III 11 4 •` I I •T . /T .... 1 . t W'Cove" LGCR_5 f� • 7 •I �) Lands to Tukwila Y� 1 1 Lands to Renton t :. Lands to Tukwila M �A M4 Vt 1 1 f H . o zoos' � CIT.U.fT• , EXHIBIT C Areas Subject to Joint Tukwila-Renton Review or all Future Annexation Petitions �` yt to � �' � �-..��•�nF-re �.> .L �:��. �� .ice• f I))I ( ILI�j �. ' }-f.. l 1 >:22:>' :. :�:'.d:i:':':.."; IN 71 - i \'.>:......::...:::. .. M E T R:...::.;. t 1 a , S C � U 177 iI CITY of TUKWILA WASHINGTON RESOLUTION NO, f G'D A RESOLUTION OF THE CITY OF TUKWILA, WASHINGTON, ESTABLISHING INTENT TO ANNEX CERTAIN AREAS FROM THE CITY OF RENTON, WASHINGTON, REQUESTING THE CITY OF RENTON TO ANNEX CERTAIN AREAS CURRENTLY WITHIN THE CORPORATE LIMITS OF THE CITY OF TUKWILA, SPECIFYING TERMS AND CONDITIONS OF SUCH ANNEXATIONS AUTHORIZING THE MAYOR AND CITY CLERK TO EXECUTE AN AGREEMENT WITH RENTON ACCORDING TO SUCH TERMS AND CONDITIONS AND REPEALING RESOLUTION NO. 1002 OF THE CITY COUNCIL. WHEREAS, the current location of the common corporate boundary between the City of Renton and the City of Tukwila is irr;guiar and does not follow an easily identified natural feature, and WHEREAS, the current boundary is difficult for residents, businesses, and public officials to recognize and use, and WHEREAS, the current irregular boundary limits the ability of one respective jurisdictions to plan for future land use and logical service areas, and WHEREAS, realigning and simplifying the common boundary would be in the mutual interest of Renton and Tukwila, and WHEREAS, a realigned boundary would provide more logical service areas, including emergency service response areas, and WHEREAS, a realigned boundary would clarify land use planning responsibilities and provide more logical mailing addresses, and WHEREAS, staff members of the respective Cities have explored the potential areas of fiscal and administrative concern in detail , and WHEREAS, the City of Renton, acting as lead agency for purposes of SEPA, a Determination of Non-SignifiCdnce for a proposed realignment of boundaries between the two Cities to be accomplished by reciprocal annexations pursuant to RCW 35.10.217, now, therefore, THE CITY COUNCIL OF THE CITY OF TUKWILA, WASHINGTON HEREBY RESOLVE AS FOLLOWS: -1- 1 1 2 . S. W. 43rd Street/S . 180th Street Improvements . If a proposed grade separated crossing of S. W. 43rd and the railroad tracks is undertaken to improve traffic safety and capacity, the local costs should be shared equitably between Renton and Tukwila. The two Cities shall support the S. W. 43rd Street/S. 180th Street improvement in the same manner as the Strander Boulevard/S. W. 27th Street railroad crossing. By support, it is meant that both Cities will designate this road improvement as a high priority item on each City ' s Transportation Improvement Plan and each provide one-half of the local funds needed to match an 80% federal funding for this road improvement project . If federal funding is unavailable, then Renton and Tukwila will negotiate an equitable funding option as necessary, such that each cities ' share of the local costs of such road improvement shall be 50% . Because the improvement will be located entirely within Tukwila upon completion of the annexation, the final decision as to the time for the improvement shall be left to the discretion of Tukwila. 3 . P-1 Channel . The P-1 Channel is a storm drainage improvement to be located within that property described on Exhibit B which will be annexed to Renton. Renton agrees to assume what would have been Tukwila' s share of the cost of construction and maintenance for that portion of the P-1 Charnel which will be located in said area. The City of Tukwila shall retain the right to connect to and use the P-1 Channel . 4 . Green River Dike Maintenance. Renton' s share of the cost of the Green River Dike Maintenance Plan was 22% prior to the reciprocal annexations . Construction and maintenance costs for the Green River Dikes should be revised to reflect the fact that Renton will not have Green River frontage after the reciprocal annexations are completed and that therefore Renton should have no obligation for dike maintenance or rehabilitation. 5 . Frank Zepp Bridge. Upon completion of the reciprocal annexations, the Frank Zepp Bridge at S. W. 43rd Street/S. 180th Street will be located entirely within the City of Tukwila. Tukwila agrees to assume all costs of maintenance and future widening for the bridge. Both parties understand that with the annexation of the property described on Exhibit A to Tukwila, the responsibility for maintenance and operation of the traffic signals at the intersection of S. W. 43rd Street and West Valley Road (SR-181) , formerly shared by the Cities of Renton and Kent, should be assumed in total by the City of Kent. 6 . Utilities . Both parties understand that Renton has existing utilities serving a portion of the .area to be annexed to the City of Tukwila bordered by S. W. 43rd Street, West Valley Highway, the existing Renton City limits and the Union Pacific Railroad right-of-way. Renton shall retain ownership of the said existing utilities and shall be responsible for all costs of operation and maintenance of the same. Tukwila shall be responsible for providing sewer and water service to all other areas annexed to Tukwila as part of the reciprocal annexations . Neither party shall impose a surcharge upon utility users within the newly annexed areas solely because of their annexation. 7 . SR-181 . The City. of Renton should enter into an agreement with the State of Washington regarding the transfer of costs to the State for improvements to SR-181 between S. W. 43rd Street and I-405 . The City of Tukwila shall bear no responsibility for such costs by virtue of the execution of this Agreement. 8 . Future Annexations . Renton and Tukwila will coordinate review of future annexation petitions received by the parties consistent with the boundary line shown on Exhibit C attached hereto and incorporated herein by this reference as if set forth in full. 3 - _ EXHIBIT A Lands to be Annexed to Tukwila from Renton The lands proposed to be annexed to the City of Tukwila from the City of Renton are listed below and shown in Figure 1. SECTION-TOWNSHIP-RANGE PARCEL ACREAGE 3.62 NW 1/4 of Sec. 24, Twn. 23 Roe. 4 27 (portion) 12.79 SW 1/4 of Sec. 24, Twn. 23, Rge. 4 63 2.35 32 0.27 28 3.85 7 MDC 4.55 NW 1/4 of Sec. 25, Twn. 23, Rge. 4 38 1.84 0.91 8 MDC (p) 2.91 - 1.14 9 MDC (p) 3.05 43 2.15 50 0.84 51 0.72 23 2.16 6 6.70 2.16 24 (portion) 44.10 21 MDC 2.45 2.16 22 (portion) 10.47 SW 1/4 of Sec. 25, Twn. 23, Rge. 4 21 1.61 59 0.37 20 2.14 33 3.69 17 5.93 3.01 23 (portion) 10.43 24 (portion) 5.44 44.10 22 3.01 NW 1/4 of Sec. 36, Twn. 23, Rge. 4 97 3.00 57 8.69 62 6.40 61 0.17 11 6.83 43 0.10 37 0.17 38 0.14 39 0.14 53 0.14 14 0.12 13 0.12 29 0.32 10 0.14 9 0.19 59 0.15 8 0.17 1.7 0.12 35 2.84 34 5.54 36 3.09 TOTAL 45 parcels 101.65 Renton-Tukw, ,a Boundary Adjustment Map of Affected Areas Lands to Renton �t �. n _ L::: • it 7 � �4 �►11. 'I7 wll Lands to Tukwila �I Lands to Renton c r 1 � a Lands to Tukwila Vt t 1 f' N O 2000 r 7906' CITY OF TUKWILA 0042 . 010 . 009 JEH/ko WASHINGTON 12/01/86 01/06/87 RESOLUTION NO. i n2Q A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF TUKWILA, WASHINGTON, ANNEXING CERTAIN REAL PROPERTY TO THE CITY OF TUKWILA FROM THE CITY OF RENTON . WHEREAS, Resolution No. 2651 of the City of Renton requested that the City of Tukwila annex certain real property located in the City of Renton as part of a common effort by Renton and Tukwila to simplify their common boundaries, and WHEREAS, Resolution 1008 of the City of Tukwila declared the City of Tukwila' s willingness to accept such annexation upon certain conditions and requested that the City of Renton annex certain property located within the Citv of Tukwila as a reciprocal measure designed to simplify the common boundary, and WHEREAS, the City of Renton and the City of Tukwila entered into an interlocal agreement providing for shared responsibilities with respect to the areas to be annexed by both cities, and WHEREAS, the King County Boundary Review Board has reviewed the proposed annexations and boundary change and has approved the same, and WHEREAS, pursuant to RCW 35.10 .217 and upon proper notice, a public hearing was held on the proposed annexation before the City Council of the City of Tukwila on January 5, 1987 , at which all persons who were interested in the annexation were allowed to participate, and WHEREAS, after such public hearing, the City Council of the City of Tukwila has determined to annex the area, now, therefore THE CITY COUNCIL OF THE CITY OF TUKWILA, WASHINGTON, HEREBY. RESOLVE AS FOLLOWS: Section 1 . Annexation of Area from Renton. Pursuant to RCW 35 .10.217 , the real property previously located in the City of Renton and legally described on Exhibit A attached hereto and incorporated herein by this reference as if set forth in full, EXHIBIT A • l - 1 Lands to be Annexed to Tukwila from Renton The lands proposed to be annexed to the City of Tukwila from the City of Renton are listed below and shown in Figure 1. SECTION-TOWNSHIP-RANGE PARCEL ACREAGE 3.62 NW 1/4 of Sec. 24 Twn. 23 Roe. 4 27 (portion ) T-2.79 SW 1/4 of Sec. 24, Twn, 23, Rge. 4 63 2.35 32 0.27 28 3.85 7 MDC 4.55 NW 1/4 of Sec. 25, Twn. 23, Rge. 4 38 1.84 0.91 8 MDC (p) 2.91- 1.14 9 MDC (p) 3.0 43 2. 15 50 0.84 51 0.72 23 2.16 6 6.70 2. 16 24 (portion) 44. 0 21 MDC 2.45 2. 16 22 (portion) 0,4 SW 1/4 of Sec. 25, Twn. 23, Rge. 4 , 21 1.61 59 0.37 20 2.14 33 3.69 17 5.93 3.01 23 (portion) 10.43 24 (portion) 5.44 44. 0 22 3.01 NW 1/4 of Sec. 36, Twn. 23, Rge. 4 97 3.00 57 8.69 62 6.40 61 0.17 11 6.83 43 0.10 37 0.17 38 0.14 39 0.14 53 0.14 14 0.12 13 0.12 29 0.32 10 0.14 9 0.19 59 0.15 8 0.17 1.7 0. 12 35 2.84 34 5.54 36 3.09 TOTAL 45 parcels 101.65 SUGGESTED LEGAL DESCRIPTION (From City of Renton to City or Tukwila - North Part) All that portion of the City of Renton as annexed by City Ordinance no. 1764 lying westerly of the east margin of BNRR Company (N.P. Ry ) main track right of Nay all being located in the S} of the JiW} of Section 24 , Township 33 North, P,ange 4 East, U.M. Together with all that portion of the City of Renton as annexed by City Ordinance No. 1764 lying westerly of the east margin of BiM Company (N.P. Ry) rrain track right of way all being located in the SW} of Section 24 , Township 23 Nortn, Range 4 East, W.M. Together with all that portion of the City of Renton as annexed by City Ordinance No. 1764 lying westerly of the east margin of B14RR Company (N.P. Ry) Train track right of way all being located in the NW} of Section 25 , Township 23 North, Range 4 East, W.M. King County, Washington 9/16/86:JRB CITY OF RENTON MEMORANDUM DATE: February 18, 1992 TO: Lenora Blauman VIA: Richard J. Anderson FROM: Randall Parsons STAFF CONTACT: Ron Straka SUBJECT: Boeing Customer Service Training Center (CSTC) Develop- ment Project Conceptual Drainage Plan Review Comments The Stormwater Utility has reviewed the above-referenced project's conceptual drainage plan. The following is the Utility's comments regarding the proposed development project: 1. The conceptual drainage plan for the project must be approved prior to the Site Plan Approval Hearing. The conceptual drainage plan approval will be dependent upon the approval of the requested stormwater code requirement modifications. Otherwise, the City of Renton Storm and Surface Water Drainage Ordinance requirements must be satisfied. 2. Information must be provided which demonstrates the requested stormwater code modifications (i.e. the proposed three stage wetpond and associated on- site stormwater management system) will provide the same level of water quality treatment benefit as the biofiltration, wetpond, coalescing plate oil/water separator system would as required by the Stormwater Utility Drainage Ordinance. 3. To facilitate review of the project a Composite Utility Plan should be included. A Composite Utility Plan is typically required at the time of building plan review and is usually required for a project of this magnitude. The Composite Utility Plan should consist of the Site Plan with all of the utilities overlay on the plan at a scale (preferable 1 " = 100' or 200') which will fit on a standard drawing sheet size of 22" x 34". Lenora Blauman • Boeing CSTC Development Project Page 2 4. SW 16th Street drainage requirements: The storm drainage system design for SW 16th Street improvement must be based upon the City Transportation Division's approved right-of-way section width. The improved street storm system must satisfy the Stormwater Utility Ordinance requirements for water quantity and quality control. The improved street storm system should include at a minimum: 1 ) Detention, unless it can be shown that the street improvement is exempt; 2) Biofiltration; 3) Wet pond(s)/Wetvault; and 4) The street conveyance system must be sized in accordance with code requirements. The improved street stormwater management facilities must be either located within the street right-of-way (which may require dedication of additional right-of-way for the facilities) or the improved street runoff can be incorporated into the on-site stormwater management system. The Tukwila Nelson Place/Longacres Way storm interceptor, if constructed, must be a separate system from the SW 16th Street storm system, unless the connection of the SW 16th Street system is approved by the City of Tukwila and the requirements of the Stormwater Utility is satisfied. If connection of the SW 16th Street system to the Tukwila Interceptor is allowed, it must be demonstrated that the system will function in accordance with the Stormwater Utility code requirements and will not result in flooding of the street. 5. A detailed description explaining how the on-site compensatory storage requirement is being satisfied (i.e. pre-developed and post-developed flood storage volumes at corresponding elevations). 6. A formal submittal requesting code requirement modifications for the proposed project must be submitted no sooner than March 9, 1992 for consideration under the revised Section 4-22-16 of Chapter 22 of the City code. D:92-140:RJS:ps DEPARTMENOJF PLAN NING/BUILDING/O&LIC WORKS ENVIRONMENTAL CHECKLIST REVIEW SHEET REVIEWING DEPARTMENT: S+ONYvi W DATE CIRCULATED: 01/24/92 COMMENTS DUE: 02/07/92 APPLICATION NO(S): ECF;SA;SM;V-006-92 PROPONENT: Boeing Commercial Airplane Company PROJECT TITLE: Boeing Commercial Airplane Customer Service Training Center BRIEF DESCRIPTION OF PROJECT: The Boeing Company is seeking site plan approval and substantial shoreline development permit for the development of a training center complex (CSTC) to provide specialized flight simulation instruction for airline transport pilots. The development is proposed to include a 600,000 square foot training facility, two utility support structures (32,000 square feet), 800 +/- parking spaces, introduced landscaping, and preserved natural environment, and enhanced wetland areas. The complex is anticipated to employ between 900 - 1100 staff and to train between 650 -800 students per session. The subject property is composed of seven tax lots totalling approximately 50.71 acres. The site was historically connected with Longacres Park Raceway, but parcels have been segregated under King County regulations. The site currently houses some structures which serve the raceway. LOCATION: Longacres Drive, south of 1-405 and north of S.W. 19th Street (if extended) SITE AREA: 50.71 acres BUILDING AREA (gross): 632,000 sf IMPACT REVIEW ON ENVIRONMENTAL ELEMENTS: PROBABLE PROBABLE MORE MINOR MAJOR INFORMATION IMPACT IMPACT NECESSARY 1. Earth 2. Air 3. Water �C 4. Plants x 5. Animals k 6. Energy&Natural Resources 7. Environmental Health 8. Land &Shoreline Use 9. Housing 10. Aesthetics 11. Light&Glare 12. Recreation 13. Historic&Cultural Preservation 14. Transportation 15. Public Services 16. Utilities 'Q envrvsht DEPARTMENT OF PLANNING/BUILDING/PUBLIC WORKS DEVELOPMENT APPLICATION REVIEW SHEET APPLICATION NO(S).: ECF;SA;SM;V-006-92 PROPONENT: Boeing Commercial Airplane Company PROJECT TITLE: Boeing Commercial Airplane Customer Service Training Center BRIEF DESCRIPTION OF PROJECT: The Boeing Company is seeking site plan approval and substantial shoreline development permit for the development of a training center complex (CSTC) to provide specialized flight simulation instruction for airline transport pilots. The development is proposed to include a 600,000 square foot training facility,two utility support structures (32,000 square feet), 800 +/- parking spaces, introduced landscaping, and preserved natural environment, and enhanced wetland areas. The complex is anticipated to employ between 900 - 1100 staff and to train between 650 -800 students per session. The subject property is composed of seven tax lots totalling approximately 50.71 acres. The site was historically connected with Longacres Park Raceway, but parcels have been segregated under King County regulations. The site currently houses some structures which serve the raceway. LOCATION: SEC: TWNSHP: RNG: Longacres Drive, south of 1-405 and north of S.W. 19th Street (if extended) TO: mac_PUBLIC WORKS DIVISION SCHEDULED TAC DATE: 02/18/92 ENGINEERING SECTION TRAFFIC ENG. SECTION �f UTILITIES ENG. SECTION FIRE PREVENTION BUREAU POLICE DEPARTMENT DEVELOPMENT SERVICES DIVISION CONSTRUCTION FIELD SERVICES DEVELOPMENT PLANNING PLANNING &TECHNICAL SERVICES PARKS AND RECREATION DIVISION OTHERS: COMMENTS OR SUGGESTIONS REGARDING THIS APPLICATION SHOULD BE PROVIDED IN WRITING. PLEASE PROVIDE COMMENTS TO THE PLANNING DIVISION BY 5:00 P.M. ON FEBRUARY 7, 1992. devrvsht � 7 CITY OF RENTON MEMORANDUM DATE: February 7, 1992 TO: Lenora Blauman VIA: Dick Anderson FROM: andall Parsons O� ' STAFF CONTACT: Ron Straka SUBJECT: CITY OF TUKWILA NELSON PLACE/ LONGACRES WAY STORM INTERCEPTOR The Stormwater Utility has reviewed all agreements with the City of Tukwila to determine if there are any pertaining to the proposed Tukwila stormwater interceptor. There exists two agreements with the City of Tukwila (see attachments) which pertain to stormwater management. The first agreement is the interlocal agreement regarding Reciprocal Annexations (CAG 046-86). This agreement was signed when our two Cities agreed to swap land in the Valley. The condition number 4 of the agreement basically states that the City of Renton shall assume Tukwila's share of the cost of construction and maintenance for the P-1 Channel located in the area which was agreed upon for annexation, but the City of Tukwila retained the right to connect to and use the P-1 Channel. Condition number 5 of the agreement then released the City of Renton from any obligation for dike maintenance or rehabilitation along the Green River. The second agreement with the City of Tukwila was an interlocal agreement in which Tukwila agreed to assume the engineering and construction cost for a 48-inch storm drain and a 72-inch manhole which was installed as part of the SW 16th Street Bridge Replacement project. This storm system is the outlet system of the proposed City of Tukwila Nelson Place/Longacres Way Storm Interceptor which Boeing has developed plans to install as part of SW 16th Street improvement. There are no other agreements regarding the remainder of the proposed storm interceptor design or construction between the SW 16th Street Bridge and the City of Tukwila corporate limits. We have sent a letter to Tukwila requesting a meeting to discuss the proposed stormwater interceptor. This meeting will probably be scheduled next week. They have requested additional time to develop responses to the questions listed in our letter (see attachments). We will coordinate the meeting schedule with you so that you can attend. If you have any questions regarding this subject, please contact Ron Straka at X-5547. D:92-105:RP:RJS:ps Attachment AGREEMEN CAG-039-90 THIS AGREEMENT, 1990, made and entered into this day of 1990, by and between the City of Tukwil , a municipal corporation, hereinafter referred to as "Tukwila", and the City of Renton, a municipal corporation duly authorized and existing by virtue of the State of Washington, hereinafter referred to as the "City". W I T N E S S E T H WHEREAS, the parties to this agreement each have power to perform the terms and conditions of this agreement, and WHEREAS, the City will be constructing a bridge on SW 16th Avenue West of Oakesdale Avenue SW, and WHEREAS, Tukwila has requested the City to design and construct a 48" storm drain complete with a 72" manhole for future extension located on the west side of the bridge, and WHEREAS, Tukwila and the City wish to construct the two projects jointly, and WHEREAS, the City of Renton and Tukwila have, by appropriate legislative action, authorized this agreement, and WHEREAS, it is in the interest of the public served by both jurisdictions that said improvement be constructed, NOW, THEREFORE, IT IS COVENANTED AND AGREED AS FOLLOWS: 1. Purpose. The purpose of this contract agreement shall be to construct the SW 16th Street Bridge, which has a portion of the project which is to be the responsibility of Tukwila. 2. Work. Tukwila agrees to assume the cost for the 48" storm drain and 72" manhole. The estimated cost being $35,000.00 which includes engineering and construction. The City of Renton will be managing the project and the billing. IN WITNESS WHEREOF, the parties hereto have hereunto set their hand and seals the day and year first above written. Cl ty aOFREN7N,,,,,WASHINGTON APPROVED AS TO FORM: ATTEST: �141torney for the 62ity of Tukwila �, City Clerk APPROVED AS TO FORM: (�7� Qr..sa► City Attorney WJA Ir W JA048 CITY OF RENTON, WASHINGTON RESOLUTION NO. 2790 A RESOLUTION OF THE CITY OF RENTON, WASHINGTON, AUTHORIZING THE MAYOR AND CITY CLERK TO EXECUTE AN INTERLOCAL AGREEMENT WITH TUKWILA. WHEREAS, the City of Renton is planning to construct the S.W. 16th Street bridge replacement project; and WHEREAS, the City of Tukwila wishes to construct a 48" storm drain in the same general area; and WHEREAS, it would be advantageous to the City of Tukwila to construct the storm drain at the same time as the City of Renton is constructing the S.W. 16th Street bridge; and WHEREAS, it would be advantageous to the taxpayers to have the work constructed at the same time, under the management of the City of Renton; and WHEREAS, the City of Tukwila is willing to pay the City of Renton the cost of installation of the storm drain, should the City of Renton agree to install the storm drain as part of the S .W. 16th Street bridge construction project. NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF RENTON, WASHINGTON DO RESOLVE AS FOLLOWS: SECTION I. The above recitals are hereby found to be true and correct in all respects. SECTION II. The Mayor and City Clerk are hereby authorized to enter into an interlocal agreement with the City of Tukwila to include the 48" storm drain as part of the S .W. 16th Street bridge replacement project, with the cost of the storm drain to be reimbursed to the City of Renton. 1 RESOLUTION NO. 2790 PASSED BY THE CITY COUNCIL this 2nd day of April , 1990. Marilyn tersen, City Clerk APPROVED BY THE MAYOR this 2nd day of April_ , 1989 . Nancy Ma ws, Mayor Pro tem Approved s to form: Lawrence J. War n, City Attorney RES , 67 : 12/06/89 :as. 2 CAG 046-86 I ZOCALAGREEMENT REGARDING RECIPROCAL ANNEXATIONS THIS AGREEMENT is entered into between the City of Tukwila, C•4,(rr . f hereinafter referred to as Tukwila", and the City of Renton, lbr� '41 �4 { hereinafter referred to as "Renton". WHEREAS, the Cities of Renton and Tukwila are authorized by Chapter 39.34 RCW to enter into agreements for the purpose of interlocal cooperation, and WHEREAS, the Tukwila City Council has passed Resolution No. 1008 , which indicates Tukwila's willingness to accept annexation to Tukwila of certain property currently located within Renton and more particularly described on Exhibit A attached hereto and incorporated herein by this reference as if fully set forth to Tukwila, and calls for certain property currently located within Tukwila and described on Exhibit B attached hereto and incorporated herein by this reference as if fully set forth to be annexed to Renton, and WHEREAS, the Renton City Council has passed Resolution No. / which calls for certain property currently located with ton and more particularly described on Exhibit A to be annexed to Tukwila and indicates Renton's willingness to accept annexation of certain property currently located within Tukwila and more particularly described on Exhibit B to Renton, and WHEREAS, both Resolutions recognize that there are issues of concern to both Renton and Tukwila that must be mutually resolved and Renton and Tukwila desire to enter into an interlocal agreement to resolve these issues, now, therefore FOR AND IN CONSIDERATION OF the mutual benefits and conditions hereinafter contained, the parties hereto agree as follows: I. Scope and Effect of Agreement. It is the intent of the parties to resolve issues of mutual concern with respect to pending reciprocal annexations. This Agreement shall become effective and shall bind the parties upon completion of the latter of the annexation of the property described on Exhibit B to Renton and annexation of the property described on Exhibit A to the City of Tukwila. In the event that, for any reason, one or both of the above referenced annexations are not completed, then this Agreement shall be null and void. 2. Strander Boulevard/S. W. 27th Street Improvements. Local costs of the future crossing of the railroad tracks by Strander Boulevard/S. W. 27th Street should be shared equitably between the two parties. In pursuit of this Agreement, both Cities agree to designate the aforementioned improvement of Strander Boulevard/S. W. 27th Street as a high priority item on each City's Transportation Improvement Plan, and each provide -Y- - one-half of the local funds needed to match an 80% federal funding for this road improvement project. Because the timing of this street extension is uncertain, Renton and Tukwila agree to monitor development and, as development warrants, to acknowledge that the route is needed and that both jurisdictions will cooperate to insure that an appropriate connection is designed and constructed. Because the crossing will be located entirely within Tukwila upon completion of the annexation, the final decision as to the time for improvement shall be left to the discretion of Tukwila. If federal funding is unavailable, then Renton and Tukwila will negotiate an equitable funding option as necessary, such that each cities' share of the local costs of the improvement shall be 50%. 3. S. W. 43rd Street/S. 180th Street Improvements. If a proposed grade separated crossing of S. W. 43rd and the railroad tracks is undertaken to improve traffic safety and capacity, the s�s lnterlocal Agreement Regarding Reciprocal Annexations Page 2 {z` local costs should be shared equitably between Renton and Tukwila. The two Cities shall support the S. W. 43rd Street/S. 180th Street improvement in the same manner as the Strander Boulevard/S. W. 27th Street railroad crossing. By support, it is meant that both Cities will designate this road improvement as a high priority item on each Cities' Transportation Improvement Plan and each provide one-half of the local funds needed to match an 80% federal funding for this road improvement project. If federal funding is unavailable, then Renton and Tukwila will negotiate an equitable funding option as necessary, such that each cities' share of the local costs of such road improvement shall be 50%. Because the improvement will be located entirely within Tukwila upon completion of the annexation, the final decision as to the time for the improvement shall be left to the discretion of Tukwila. 4. P-1 Channel. The P-1 Channel is a storm drainage improvement to be located within that property described on Exhibit B which will be annexed to Renton. Renton agrees to assume what would have been Tukwila's share of the cost of construction and maintenance for that portion of the P-1 Channel which will be located in said area. The City of Tukwila shall retain the right to connert to and P-1 Channel. 5. Green River Dike Maintenance. Renton's share o e cost of the Green River Dike Maintenance Plan was 22% prior, to the reciprocal annexations. Construction and maintenance costs for the Green River Dikes shou e revise o re ec e ac not have Green River frontage after the reciprocal annexations are completed and that therefore Renton should have no obligation for dike maintenance or rehabilitation. 6. Frank Zepp Bridge. Upon completion of the reciprocal annexations, the Frank Zepp Bridge at S. W. 43rd Street/S. 180th Street will be located entirely within the City of Tukwila. Tukwila agrees to assume all costs of maintenance and future widening for the bridge. Both 9 parties understand that with the annexation of the property described on Exhibit A to Tukwila, the responsibility for maintenance and operation of the traffic signals at the intersection of S. W. 43rd Street and West Valley Road (SR-181), formerly shared by the Cities of Renton and Kent, should be assumed in total by the City of Kent. 7. Utilities. Both parties understand that Renton has existing utilities serving a portion of the area to be annexed to the City of Tukwila bordered by S. W. 43rd Street, West Valley Highway, the existing Renton City limits and the Union Pacific Railroad right-of-way. Renton shall retain ownership of the said existing utilities and shall be responsible for all costs of operation and maintenance of the same. Tukwila shall be responsible for providing sewer and water service to all other areas annexed to Tukwila as part of the reciprocal annexations. Neither party shall impose a surcharge upon utility users within the newly annexed areas solely because of their annexation. 8. SR-181. The City of Renton should enter into an agreement with the State of Washington regarding the transfer of costs to the State for improvements to SR-181 between S. W. 43rd Street and I-405. The City of Tukwila shall bear no responsibility for such costs by virtue of the execution of this Agreement. 9. Future Annexations. Renton and Tukwila will coordinate review of future annexation petitions e parties consistent with the boundary line shown Ceone Exhibit thC attached hereto and incorporated herein by this reference as if set forth t in full. � I II Interlocal Agreement Regarding Annexations Page 3 10. Entire Agreement. This Agreement constitutes the entire agreement between the parties and no other agreements, oral or otherwise, shall b eeme o exist or o e parties hereto. DA this— //P� day of 1986. CITY OF T KWI — CITY OF RENTON A L. A D N, A OR BARBARA Y. SHI POCH, MAYOR MAXINE ANDER ON, CITY CLERK FAMINE E. MOTOR, CITY CLERK APPROVED AS TO FORM: APPROVED AS TO FORM: OFFICE OF THE CITY ATTO EY CI Y ATTORNEY JAM JAMES E. HAN , _/ LAWRENC J. WAR , CITY ATTORNEY cs " CITY*F RENTON Planning/Building/Public Works Department Earl Clymer, Mayor Lynn Guttmann,Administrator January 23, 1992 Ross Earnst, Director Department of Public Works City of Tukwila 6200 Southcenter Blvd. Tukwila, WA 98188 SUBJECT: CITY OF TUKWILA NELSON PLACE/LONGACRES WAY PROPOSED STORM DRAINAGE INTERCEPTOR �S5 DearlRoss: Staff members of my Stormwater Utility would like to meet with you or someone from your staff to discuss the City of Tukwila's proposed Nelson Place/Longacres Way storm drainage interceptor. As you know the Boeing Company is currently submitting proposals for the development of the northern portion of the Longacres Park site. This first phase of development will be for the Boeing Company's Customer Service Training Center (CSTC). The Boeing CSTC will require off-site street and utility improvements. The Boeing Company has proposed installing the Nelson Place/Longacres Way storm system as part of the SW 16th Street improvements. The following is a list of topics which we wish to discuss: 1) The June, 1988 Nelson Place/Longacres Way storm drainage interceptor preliminary design report recommends that an agreement between our Cities be developed and approved which allows runoff originating within Tukwila to pass through Renton along SW 16th Street. To our knowledge this agreement has not yet been consummated. The agreement needs to address the construction, maintenance, and replacement responsibilities for the proposed storm interceptor. 2) Is the City of Tukwila requiring the Boeing Company to install the proposed storm interceptor as part of the CSTC project or Longacres Park Master plan? 3) Status of development proposals on the properties tributary to the proposed storm interceptor in Tukwila. 200 Mill Avenue South - Renton, Washington 98055 Ro ss Earnst City of Tukwila Page 2 4) Stormwater management standards/requirements for developments in the City of Tukwila tributary to the proposed storm interceptor (including discussions with Washington State Department of Fisheries regarding their concerns)_ 5) We have requested that the proposed storm interceptor only serve the City of Tukwila, separate from the SW 16th Street storm system, and be in a franchise granted to Tukwila for operation, maintenance, and replacement responsibilities. The Boeing Company has requested permission to connect a portion of the SW 16th Street drainage improvements to the proposed storm interceptor. What is Tukwila's position regarding this request? 6) Tukwila's review and approval coordination requirements for the proposed storm drainage interceptor. 7) SEPA status of the proposed Nelson Place/Longacres Way storm drainage interceptor. We want to establish the lines of communication between our staffs for coordination and cooperation for the proposed storm drainage interceptor, and any other joint utility improvements for the Boeing Company's CSTC and the Longacres Park Master Plan in general. Ron Straka, Stormwater Civil Engineer, will be calling you to establish a meeting date, at your earliest convenience, to discuss these and any other topics regarding the proposed storm drainage interceptor and the Boeing Company's Customer Service Training Center site development. Very truly yours, L nn uttmann, Administrator Pla ing/Building/Public Works Department D:92-054:LAG:RJS:ps CC: Richard J. Anderson, Utility Systems Division Randall Parsons, Stormwater/Wastewater Utility Section Ron Straka, Stormwater Utility Section Lenora Blauman, Development Services C ICURR/EMCE DATE CITY OF RENTON ; AnnE IN I IQL/DATE MEMORANDUM DATE: February 4, 1992 TO: Lenora Blauman VIA: Dick Anderson FROM: Randall Parsons STAFF CONTACT: Ron Straka SUBJECT: CITY OF TUKWILA NELSON PLACE/ LONGACRES WAY STORM INTERCEPTOR The Stormwater Utility has reviewed all agreements with the City of Tukwila to determine if there are any pertaining to the proposed Tukwila stormwater interceptor. There exists two agreements with the City of Tukwila (see attachments) which pertain to stormwater management. The first agreement is the interlocal agreement regarding Reciprocal Annexations (CAG 046-86). This agreement was signed when our two Cities agreed to swap land in the Valley. The condition number 4 of the agreement basically states that the City of Renton shall assume Tukwila's share of the cost of construction and maintenance for the P-1 Channel located in the area which was agreed upon for annexation, but the City of Tukwila retained the right to connect to and use the P-1 Channel. Condition number 5 of the agreement then released the City of Renton from any obligation for dike maintenance or rehabilitation along the Green River. The second agreement with the City of Tukwila was an interlocal agreement in which Tukwila agreed to assume the engineering and construction cost for a 48-inch storm drain and a 72-inch manhole which was installed as part of the SW 16th Street Bridge Replacement project. This storm system is the outlet system of the proposed City of Tukwila eelson Place/Longacres Way Storm Interceptor which Boeing has developed plans reinstallation as part of SW 16th Street improvement. There& no agreements regarding the remainder of the proposed storm interceptor design or construction between the SW 16th Street Bridge and the City of Tukwila corporate limits. We have sent a letter to Tukwila requesting a meeting to discuss the proposed stormwater interceptor. This meeting will probably be scheduled next week. They have requested additional time to develop responses to the questions listed in our letter (see attachments). We will coordinate the meeting schedule with you so that you can attend. If you have any questions regarding this subject, please contact Ron Straka at X-5547. D:92-105:RP:RJS:ps Attachments CITY OF RENTON MEMORANDUM DATE: February 3, 1992 AN j �\ 11 TO: Dick Anderson V Randall Parson 'V FROM: Don Erickson dF rt� Qept. STAFF CONTACT: Lenora Blauman SUBJECT: Storm Water Review For Longacres Park Project We are writing in response to your memorandum requesting that funds be provided to allow R. W. Beck to review the Stormwater Management Plan and supporting reports for Boeing Longacres Park Project Master Plan and EIS. We have approached The Boeing Company to discuss a potential contract amendment to fund review activities by R.W. Beck. Boeing representatives are willing to consider such a modification to the contract for the review of stormwater management for the programmatic Environmental Impact Statement for the Longacres site. For review of documents prepared in conjunction with applications for specific project activities, however, it is our understanding that review would be accomplished by City staff under the existing contract with The Boeing Company. If this is inconsistent with your understanding, please let us know. You may contact us at Extension 2550 if you have questions or would like additional information. �% CIT OF RENTON Planning/Building/Public Works Department Earl Clymer, Mayor Lynn Guttmann,Administrator January 23, 1992 Ross Earnst, Director Department of Public Works City of Tukwila 6200 Southcenter Blvd. Tukwila, WA 98188 SUBJECT: CITY OF TUKWILA NELSON PLACE/LONGACRES WAY PROPOSED STORM DRAINAGE INTERCEPTOR Dear�S� oss: Staff members of my Stormwater Utility would like to meet with you or someone from your staff to discuss the City of Tukwila's proposed Nelson Place/Longacres Way storm drainage interceptor. As you know the Boeing Company is currently submitting proposals for the development of the northern portion of the Longacres Park site. This first phase of development will be for the Boeing Company's Customer Service Training Center (CSTC). The Boeing CSTC will require off-site street and utility improvements. The Boeing Company has proposed installing the Nelson Place/Longacres Way storm system as part of the SW 16th Street improvements. The following is a list of topics which we wish to discuss: 1) The June, 1988 Nelson Place/Longacres Way storm drainage interceptor preliminary design report recommends that an agreement between-our Cities be developed and approved which allows runoff originating within Tukwila to pass through Renton along SW 16th Street. To our knowledge this agreement has not yet been consummated. The agreement needs to address the construction, maintenance, and replacement responsibilities for the proposed storm interceptor. 2) Is the City of Tukwila requiring the Boeing Company to install the proposed storm interceptor as part of the CSTC project or Longacres Park Master plan? 3) Status of development proposals on the properties tributary to the proposed storm interceptor in Tukwila. 200 Mill Avenue South - Renton, Washington 98055 Ross Earnst City of Tukwila Page 2 4) Stormwater management standards/requirements for developments in the City of Tukwila tributary to the proposed storm interceptor (including discussions with Washington State Department of Fisheries regarding their concerns). 5) We have requested that the proposed storm interceptor only serve the City of Tukwila, separate from the SW 16th Street storm system, and be in a franchise granted to Tukwila for operation, maintenance, and replacement responsibilities. The Boeing Company has requested permission to connect a portion of the SW 16th Street drainage improvements to the proposed storm interceptor. What is Tukwila's position regarding this request? 6) Tukwila's review and approval coordination requirements for the proposed storm drainage interceptor. 7) SEPA status of the proposed Nelson Place/Longacres Way storm drainage interceptor. We want to establish the lines of communication between our staffs for coordination and cooperation for the proposed storm drainage interceptor, and any other joint utility improvements for the Boeing Company's CSTC and the Longacres Park Master Plan in general. Ron Straka, Stormwater Civil Engineer, will be calling you to establish a meeting date, at your earliest convenience, to discuss these and any other topics regarding the proposed storm drainage interceptor and the Boeing Company's Customer Service Training Center site development. Very truly yours, L nn Guttmann, Administrator Pla ing/Building/Public Works Department D:92-054:LAG:RJS:ps CC: Richard J. Anderson, Utility Systems Division Randall Parsons, Stormwater/Wastewater Utility Section Ron Straka, Stormwater Utility Section Lenora Blauman, Development Services CITY OF RENTON Planning/Building/Public Works Department Earl Clymer, Mayor Lynn Guttmann,Administrator January 23, 1992 Ross Earnst, Director Department of Public Works City of Tukwila 6200 Southcenter Blvd., Tukwila, WA 98188 SUBJECT- CITY OF TUKWILA NELSON PLACE/LONGACRES WAY PROPOSED STORM DRAINAGE INTERCEPTOR Dear�S7 oss: Staff members of my Stormwater Utility would like to meet with you or someone from your staff to discuss the City of Tukwila's proposed Nelson Place/Longacres Way storm drainage interceptor. As you know the Boeing Company is currently submitting proposals for the development of the northern portion of the Longacres Park site. This first phase of development will be for the Boeing Company's Customer Service Training Center (CSTC). The Boeing CSTC will require off-site street and utility improvements. The Boeing Company has proposed installing the Nelson Place/Longacres Way storm system as part of the SW 16th Street improvements. The following is a list of topics which we wish to discuss: 1) The June, 1988 Nelson Place/Longacres Way storm drainage interceptor preliminary design report recommends that an agreement between our Cities be developed and approved which allows runoff originating within Tukwila to pass through Renton along SW 16th Street. To our knowledge this agreement has not yet been consummated. The agreement needs to address the construction, maintenance, and replacement responsibilities for the proposed storm interceptor. 2) Is the City of Tukwila requiring the Boeing Company to install the proposed storm interceptor as part of the CSTC project or Longacres Park Master plan? 3) Status of development proposals on the properties tributary to the proposed storm interceptor in Tukwila. 200 Mill Avenue South - Renton, Washington 98055 Ross Earnst City of Tukwila Page 2 4) Stormwater management standards/requirements for developments in the City of Tukwila tributary to the proposed storm interceptor (including discussions with Washington State Department of Fisheries regarding their concerns). 5) We have requested that the proposed storm interceptor only serve the City of Tukwila, separate from the SW 16th Street storm system, and be in a franchise granted to Tukwila for operation, maintenance, and replacement responsibilities. The Boeing Company has requested permission to connect a portion of the SW 16th Street drainage improvements to the proposed storm interceptor. What is Tukwila's position regarding this request? 6) Tukwila's review and approval coordination requirements for the proposed storm drainage interceptor. 7) SEPA status of the proposed Nelson Place/Longacres Way storm drainage interceptor. We want to establish the lines of communication between our staffs for coordination and cooperation for the proposed storm drainage interceptor, and any other joint utility improvements for the Boeing Company's CSTC and the Longacres Park Master Plan in general. Ron Straka, Stormwater Civil Engineer, will be calling you to establish a meeting date, at your earliest convenience, to discuss these and any other topics regarding the proposed storm drainage interceptor and the Boeing Company's Customer Service Training Center site development. Very truly yours, Linn Guttmann, Administrator Pla ing/Building/Public Works Department D:92-054:LAG:RJS:ps CC: Richard J. Anderson, Utility Systems Division Randall Parsons, Stormwater/Wastewater Utility Section Ron Straka, Stormwater Utility Section Lenora Blauman, Development Services CITY1*0F RENTON "LL Planning/Building/Public Works Department Earl Clymer, Mayor Lynn Guttmann,Administrator CONCURRENCE DATE 1119, NAME !N11TIIAVDATE January 21 , 1992 Ross Earnst, Director Department of Public Works City of Tukwila ���w�s In�aD� 6200 Southcenter Blvd, Tukwila, WA 98188 Rc��s+t� 1R?d SUBJECT: CITY OF TUKWILA NELSON PLACE/LONGACRES WAY PROPOSED STORM DRAINAGE INTERCEPTOR gOS S Dear Wit: rStormwater Utility to meet with you or SGm2 rnv� Gw+�Z ST reW �e to discuss the City of Tukwila's proposed Nelson Place/Longacres Way storm drainage interceptor. As you know the Boeing Company is currently submitting proposals for the development of the northern portion of the Longacres Park site. This first phase of development will be for the Boeing Company's Customer Service Training Center (CSTC). The Boeing CSTC will require off-site street and utility improvements. The Boeing Company has proposed installing the Nelson Place/Longacres Way storm system as part of the SW 16th Street improvements. The following is a list of topics which we wish to discuss: 1) The June, 1988 Nelson Place/Longacres Way storm drainage interceptor preliminary design report recommends that an agreement between our Cities be developed and approved which allows runoff originating within Tukwila to pass a through Renton along SW 16th Street. To our knowledge this agreement has not yet been consummated. The agreement needs to address the construction, maintenance, and replacement responsibilities for the proposed storm interceptor. S 2) Is the Cityof Tukwila requiring the Boeing Company to install the proposed q 9 9 P Y P P storm interceptor as part of the CSTC project or Longacres Park Master plan? 3) Status of development proposals on the properties tributary to the proposed storm interceptor in Tukwila. 200 Mill Avenue South - Renton, Washington 98055 Ross Earnst City of Tukwila Page 2 4) Stormwater management standards/requirements for developments in the City of Tukwila tributary to the proposed storm interceptor (including discussions with Washington State Department of Fisheries regarding their concerns). 5) We have requested that the proposed storm interceptor only serve the City of Tukwila, separate from the SW 16th Street storm system, and be in a franchise granted to Tukwila for operation, maintenance, and replacement responsibilities. The Boeing Company has requested permission to connect a portion of the SW 16th Street drainage improvements to the proposed storm interceptor. What is Tukwila's position regarding this request? 6) Tukwila's review and approval coordination requirements for the proposed storm drainage interceptor, 7) SEPA status of the proposed Nelson Place/Longacres Way storm drainage interceptor. We want to establish the lines of communication between our st�for coordination and cooperation for the proposed storm drainage interceptor, and any other joint utility improvements for the Boeing Company's CSTC and the Longacres Park Master Plan in general. Plaase�ci,,;,� ►�- call► �- ^ t Ron Straka, Stormwater Civil Engineer to establish a meeting date at your earliest convenience)to discuss these and any other topics regarding the proposed storm drainage interceptor and the Boeing Company's Customer Service Training Center site development. Very truly yours, Lynn Guttmann,•Administrator Planning/Building/Public Works Department D:92-054:LAG:RJS:ps CC: Richard J. Anderson, Utility Systems Division Randall Parsons, Stormwater/Wastewater Utility Section Ron Straka, Stormwater Utility Section l.ev�f��U1tv�►^/, ��PN��w'`--�"SI.A'i-V ICE CITY OF RENTON MEMORANDUM DATE: December 18, 1991 TO: Lenora Blauman VIA: Dick Anderson FROM: Randall Parson§ P, 9 STAFF CONTACT: Ron Straka SUBJECT: BOEING COMPANY LONGACRES PARK CUSTOMER SERVICE TRAINING CENTER TECHNICAL INFORMATION REPORT REVIEW The Stormwater Utility has reviewed the Boeing Company's draft Technical Information Report for the Longacres Park Customer Service Training Center (CSTC). The following are our comments regarding the draft report and information provided at the December 11 , 1991 Boeing CSTC meeting: GENERAL COMMENTS: The Technical Information Report generally addresses our concerns related to the management of storm and surface water on the site. The report lacked the preliminary detention and other stormwater facility sizing calculations and plans which is required as part of a submittal's conceptual drainage plan. Since the CSTC site is going to be separated into an individual project then all requirements of the Storm and Surface Water Drainage Ordinance and adopted portions of the King County Surface Water Design Manual must be satisfied for the CSTC project. The stormwater analysis for the CSTC as well as the remainder of the site must also address EIS scoping notice comments. A conceptual drainage plan is required at the time of submittal for site plan approval and environmental review. The plan needs to include at least a level one downstream analysis, a preliminary stormwater facility sizing calculations, a conceptual drainage plan for the proposed site depicting the conveyance system and the preliminarily sized stormwater facilities. This is to ensure that adequate space is provided for stormwater facilities in the site plan, so that the final drainage report for the project does not require a change in the approved site plan. Information developed as part of the City of Renton East Side Green River Watershed Plan Current Conditions Document (already provided to the Boeing Company) and the Lenora Blauman Boeing Company Longs Park Customer Service Training Cloer Technical Report Page 2 Hydrologic Analysis Report (to be finalized this month) should be utilized when analyzing the sites hydrology and hydraulics. The analysis for the sites detention requirements must account for the groundwater table elevation during the wet weather period( November to April). Stormwater storage required to satisfy drainage standards must be provided above wet weather groundwater table elevation. Impacts to the groundwater table (i.e. lowering of the groundwater table) by the sites proposed stormwater facilities may also need to be addressed. The development of the CSTC site will require the improvement of SW 16th St. to City Transportation Division standards. This improvement will require new stormwater facility improvements to City Stormwater Utility standards(KCSWDM). The Tukwila stormwater interceptor (if constructed as part of the street improvements) and the street system stormwater management system must be separate systems with different outfalls. The street stormwater management facilities must include detention, conveyance biofiltration and wet pond systems. A new outfall to Springbrook Creek may be subject to the Washington State Department of Fisheries stricter stormwater management performance requirements. Specific Comments: Page: Comment: 3 The 100-year flood flow in Springbrook Creek should be modeled in combination with the 100-year, 7 day and the 24 hour design storm flows from the site to analyze the upstream/downstream impacts and storage requirements. The proposal is to analyze the site as a Closed Depression and provide 100-year, 7 day storm event storage. Compensatory storage will be required for filling of the 100-year flood plain internal to the site based upon the above described calculations. b The construction of a new outfall 200 feet upstream of the existing 36-inch CMP outlet for the site will not require a variance if the new discharge location does not result in an increase in the total area draining to the new location than what drained to the original discharge location (no increase in tributary area). If wetlands exist at the current discharge location, the impacts due to the change in the wetland hydrology would need to be addressed. Detention (peak rate runoff control) will be designed for the 100-year, 7-day design storm. The post-developed discharge from the site must meet pre- developed runoff performance standards for the 2, 10, 100 year, 24-hour and the 100-year, 7-day design storm events. 6 Conveyance system surcharging is allowed in accordance with the King County Surface Water Design Manual (KCSWDM). Lenora Blauman Boeing Company Longa s Park Customer Service Training C*r Technical Report Page 3 7 The CSTC site will be stand alone project which is separate form the remainder of the Longacres Park site development. It is assumed that the Boeing Company is going to develop a Master Drainage Plan for the remainder of the Longacres site. 8. The Boeing Company proposes to use wetvaults instead of biofiltration water quality swales which will require a variance from CORE Requirement #3 of KCSWDM. Justification for utilizing wet vaults instead of biofiltration swales will need to be provided prior to support of any variance request. Design drawings and calculations should be provided to demonstrate claims that biofiltration swales are not feasible. 9 Special Requirement #5 and conditions of the City of Renton Wetland Ordinance will apply if the applicant proposes to utilize wetlands for peak rate runoff control. This includes the use of water quality facilities as specified by Special Requirement #5 and address the impacts to the floodplain and the wetlands hydrology. 11 The distances of flood control facilities on Springbrook Creek are in error. The East Side Green River Watershed Plan Current Conditions Document and Hydrologic Analysis Report contains additional information regarding flows in the watershed. Explain why flows are being decreased by 300 cfs due to the Black River Pump Station. 12 If information regarding topography and new drainage features show that the FEMA floodplain mapping is in error, the applicant can request a map correction for an individual property owner through FEMA as specified in section 4.3.8 of the KCSWDM. We recommend that this process be initiated by the Boeing Company following coordination with FEMA. 15-18 The TIR refers to appendices which contains information regarding pre- developed conditions, but were not included in the report. The hydrologic and hydraulic analysis for the proposed development needs to look at the pre- developed and post-developed conditions for the 2, 10, 25, 100-year, 24 hour storm events along with the 100-year, 7-day storm event. The method and standards for analysis shall be done as specified in the KCSWDM. 18 The 100-year flood in Springbrook Creek yielding backwater into the site should be modeled while the site is experiencing a 100-year, 7-day event not a 50- year, 24-hour event. 19 No information provided, but the conveyance system analysis and design must comply with the KCSWDM requirements. Information required as part of the projects conceptual drainage plan must be approved prior to site plan approval. 20 Special Reports and Studies section will include Dr. Horner's technical report regarding the use of wetvaults verses biofiltration swales. This section can also be used to include the information already developed as part of the City of Renton East Side Green Lenora Blauman Boeing Company Longao Park Customer Service Training CO Technical Report Page 4 Review of Information Provided at the 12/11/91 Meeting: The information provided at the 12/1 1/91 meeting included curve numbers, stage/storage curves for the site, discharge vs. recurrence event curves, outflow/stage curves and tables. Water quality data collected for the site was also provided. The information was interesting but the supporting documentation is necessary (i.e. pre- and post-development basin/sub-basin maps, pre- and post-development topography maps, time of concentration calculations and paths shown on the basin/sub-basin maps, etc.) for us to review and comment on this section. The curve number information looked correct, but a description of how the areas for the different land use descriptions were derived is needed. The hydrologic analysis must include the model run results for each design storm event for pre- and post-developed conditions. Hydrograph routing and level pool routing information as specified in the KCSWDM is also needed for a complete review. Formal review will be conducted once a completed final TIR with all information needed for a comprehensive review is provided. The comments provided should be addressed in the final TIR. If you have any questions regarding our comments, please contact Ron Straka at X-5547. D:91-894:RJS:ps CONCURRENCE �1 DATE jl NAME I TIA DATi- CITY OF RENTON 9� II - I MEMORANDUM l t7 DATE: December ", 1991 TO: Lenora Blauman VIA: Dick Anderson FROM: Randall Parsons STAFF CONTACT: Ron Straka SUBJECT: BOEING COMPANY LONGACRES PARK CUSTOMER SERVICE TRAINING CENTER TECHNICAL INFORMATION REPORT REVIEW The Stormwater Utility has reviewed the Boeing Company's draft Technical Information Report for the Longacres Park Customer Service Training Center (CSTC). The following are our comments regarding the draft report and information provided at the December 11 , 1991 Boeing CSTC meeting: GENERAL COMMENTS: The Technical Information Report generally addresses our concerns related to the management of storm and surface water on the site. The report lacked the preliminary detention and other stormwater facility sizing calculations and plans which is required as part of a submittal's conceptual drainage plan. Since the CSTC site is going to be separated into an individual project then all requirements of the Storm and Surface Water Drainage Ordinance and adopted portions of the King County Surface Water Design Manual must be satisfied for the CSTC project. The stormwater analysis for the CSTC as well as the remainder of the site must also address EIS scoping notice comments. A conceptual drainage plan is required at the time of submittal for site plan approval and environmental review. The plan needs to include at least a level one downstream analysis, a preiiminary stormwater facility sizing calculations, a conceptual drainage plan for the proposed site depicting the conveyance system and the preliminarily sized stormwater facilities. This is to ensure that adequate space is provided for stormwater facilities in the site plan, so that the final drainage report for the project does not require a change in the approved site plan. Information developed as part of the City of Renton East Side Green River Watershed Plan Current Conditions Document (already provided to the Boeing Company) and the Lenora Blauman Boeing Company Longas Park Customer Service Training Car Technical Report Page 2 Hydrologic Analysis Report (to be finalized this month) should be utilized when analyzing the sites hydrology and hydraulics. The analysis for the sites detention requirements must account for the groundwater table elevation during the wet weather period( November to April). Stormwater storage required to satisfy drainage standards must be provided above wet weather groundwater table elevation. Impacts to the groundwater table (i.e. lowering of the groundwater table) by the sites proposed stormwater facilities may also need to be addressed. The development of the CSTC site will require the improvement of SW 16th St. to City Transportation Division standards. This improvement will require new stormwater facility improvements to City Stormwater Utility standards(KCSWDM). The Tukwila stormwater interceptor (if constructed as part of the street improvements) and the street system stormwater management system must be separate systems with different outfalls. The street stormwater management facilities must include detention, conveyance biofiltration and wet pond systems. A new outfall to Springbrook Creek may be subject to the Washington State Department of Fisheries stricter stormwater management performance requirements. Specific Comments: Page: Comment: a•� 3 The 100-year flood flow in rSpringbrook Creek should be modeled in combination with the 100-year, hour design storm flows from the site to analyze the upstream/downstream impacts and storage requirements. The proposal is to analyze the site as a Closed Depression and provide 100-year, 7 day storm event storage. Compensatory storage will be required for filling of the 100-year flood plaiAb—ased upon the above described calculations. ;"f Nwn* 'b A— J/ _ 5 The construction of a new outfall 200 feet upstream of the existing 36-inch CMP outlet for the sited not require a variance if the new discharge location does not result in an increase in the total area draining to the new location than what drained to the original discharge location (no increase in tributary area). If wetlands exist at the current discharge location, the impacts due to the change in the wetland hydrology would need to be addressed. Detention (peak rate runoff control) will be designed for the 100- ear, 7-day design storm. The post-developed discharge from the site muot y, meet pre- developed runoff performance standards for the 2, 10, 100 and 100-year, 7- day events. �f _ „r 6 Conveyance system surcharging is allowed in accordance with the King County Surface Water Design Manual (KCSWDM). Lenora Blauman Boeing Company Longas Park Customer Service Training C•er Technical Report Page 3 7 The CSTC site will be stand alone project which is separate form the remainder of the Longacres Park site development. It is assumed that the Boeing Company is going to develop a Master Drainage Plan for the remainder of the Longacres site. 8. The Boeing Company proposes to use wet vaults instead of biofiltration water quality swales which will require a variance from CORE Requirement #3 of KCSWDM. Justification for utilizing wet vaults instead of biofiltration swales will need to be provided prior to support of any variance request. Design drawings and calculations should be provided to demonstrate claims that biofiltration swales are not feasible. 9 Special Requirement #5 and conditions of the City of Renton Wetland Ordinance will apply if the applicant proposes to utilize wetlands for peak rate runoff control. This includes the use of water quality facilities as specified by Special Requirement #5 and address the impacts to the floodplain and the wetlands hydrology. 1 1 The distances of flood control facilities on Springbrook Creek are in error. The East Side Green River Watershed Plan Current Conditions Document and Hydrologic Analysis Report contains additional information regarding flows in the watershed. Explain why flows are being decreased by 300 cfs due to the Black River Pump Station. 12 If information regarding topography and new drainage features show that the FEMA floodplain mapping is in error, the applicant can request a map correction for an individual property owner through FEMA as specified in section 4.3.8 of the KCSWDM. We recommend that this process be initiated by the Boeing Company following coordination with FEMA. 15-18 The TIR refers to appendices which contains information regarding pre- developed conditions, but were not included in the report. The hydrologic and hydraulic analysis for the proposed development needs to look at the pre- developed and post-developed conditions for the 2, 10, 25, 100-year, 24 hour storm events along with the 100-year, 7-day storm event. The method and standards for analysis shall be done as specified in the KCSWDM. 18 The 100-year flood in Springbrook Creek yielding backwater into the site should be modeled while the site is experiencing a 100-year, 24-hour event not a 50- year, 24-hour event. 7-dk7 19 No information provided, but the conveyance system analysis and design must comply with the KCSWDM requirements. Information required as part of the projects conceptual drainage plan must be approved prior to site plan approval. 20 Special Reports and Studies section will include Dr. Horners technical report regarding the use of wet vaults verses biofiltration swalese This section can also be used to include the information already developed as part of the City of Renton East Side Green River Watershed Plan which should be considered when analyzing the Longacres Park hydrology and hydraulics. Lenora Blauman Boeing Company Longs Park Customer Service Training Geer Technical Report Page 4 Review of Information Provided at the 12/11/91 Meeting: The information provided at the 12/1 1/91 meeting included curve numbers, stage/storage curves for the site, discharge vs. recurrence event curves, outflow/stage curves and tables. Water quality data collected for the site was also provided. The information was interesting 4e400k_at,. but wAhttit the supporting documentation {i e— is Nc+tsssvny Cpre and post-development basin/sub-basin maps, pre and post-development topography maps, time of concentration calculation and paths shown on the rt RSV L�..J � WrJ w a,�.�m o NJr-t 1�i S 5 v-t u.1. basin/sub-basin maps, etc.) ' ' `� ��' *'L. The curve nuR er information looked correct, but a description of how the areas for the different land use descriptions were derived would be be ficial The hydrologic analysis must include the model run results for each desig ,event for pre and post developed conditions. Hydrograph routing and level pool r gong information as specified in the KCSWDM is also needed for a complete review. Formal review will be conducted once a completed final TIR with all information needed for a comprehensive review is provided. The comments provided should be addressed in the final TIR. If you have any questions regarding our comments, please contact Ron Straka at X-5547. D:91-894:RJS:ps 1 2. 1 C. J 1 0 2 : 1 Ph/i P O 1 The 6oeing Cormnany LFax a a 1 No.of PaQ68 fodeY's Date 1 lu_9 I Or9n,No Mailetop From 1 Mal to To I� Z r Crrr:.— 1 " t at W V%n 1 Company Company Bldg,No, Loution Location Fax No. Telwone No. _ Fax Na. _ Telephone No �� Comments Oriolnal Destroy ❑Return ❑Call for Dickup DI8position: Boeing Comm yeW Alrpl•ns Group P.O.Box 3707 Sea%",WA 98124-2207 December 10, 1991 ;�-�'- 6-4067-LP-2059 BOE//Y6 Lenora Blauman City of Renton Municipal Building 200 Mill Avenue South Renton, WA 98055 Subject: Questions to be Addressed on Wednesday, December 11, 1991 (8:00 - 9:30 a.m.) Dear Lenora: Listed below are several questions we wish to discuss tomorrow with yourself, Ms. Myer, and Mr. Parsons. The main topics will be wetland impacts, compensation, use in storm water treatment, and flood plain compensation. We will bring the latest grading plan for review. We hope to get your input into the i design at an early stage to avoid changes at future stages. i The following are questions submitted for your review prior to our meeting: 1. Can urban, disturbed wetlands be used for storm water treatment? 6 2. The current condition of the existing outfall to Springbrook Creek is in need of repair. It is planned to remove and replace the outfall with the -- ., .v. 1--+;e%" enri t}1P T11Tin CloTw- may be �? revi*. It is our understanding this wcocan be conducted under :t existing nationwide permits. Can this work be accomplished under the City's Draft Wetlands Ordinance? 3. What is the status of the critical areas inventory? What supporting data was used to locate area W-13? � e -� we+/„ 1 .�,,,�, 4. What are the city's conditions on treating storm water within wetland areas? 1 2. 1 O. 9 1 C2 : 1 �P2�i PC2 Page 2 r I more Blauman 6-4067-LP-2059 5. Should wetland replacement ratios as detailed in the City's Draft Ordinance (11/7/91) be planned in our design? '` 11 6. Will storm water management (SWM) ponds, once established, remain outside the City's definition of wetlands? �F TOvxc S .6 �W •�z-- 7. Will SWM ponds be able to be modified at a later date to respond to possible changed conditions within the site on an adjacent property? BOE/AEG u.-z 1"" \,(.."4- A-, ",\, P-t,,4 t � r�op,�,r 8. What is the current status of wetland mitigation banking in the area? If you have any questions regarding the above, please call me. Sincerely, Lori Pitzer Longacres Park Development Org. 6-4067, MS 6Y-50 Phone (206) 393 - 7098 1 2 o 9 t oG 2 : pT, � Pa The Boeing Company Fax Leader No,of PaQea Orp,No To I �1 1 Gt'r9YV� Maiistop From - Mall tQ 1 Company ComDany K Location Location Bldg,No. Fax No. Z Z L Z 13 y Tel imne No. Fax No. _ TeleDNne No Aaa Comments Oholnal Q Destroy ❑Reiurn Call tar D'ICXUD Disposition. Boeing Commercial Alrplene Group P.O.Box 3707 Seattle,WA 98124-2207 i I I i December 10, 1991 6-4067-LP-2059 i l Lenora Rlauman City of Renton Municipal Building 200 Mill Avenue South Renton, WA 98055 Subject: Questions to be Addressed on Wednesday, December 11, 1991 (8:00 - 9:30 a.m.) Dear Lenora: Listed below are several questions we wish to discuss tomorrow with yourself, Ms. Myer, and Mr. Parsons. The main topics will be wetland impacts, compensation, use in storm water treatment, and flood plain compensation. We will bring the latest grading plan for review. We hope to get your input into the design at an early stage to avoid changes at future stages. The following are questions submitted for your review prior to our meeting: 1. Can urban, disturbed wetlands be used for storm water treatment? 2. The current condition of the existing outfall to Springbrook Creek is in need of repair. It is planned to remove and replace the outfall with the same size pipe, location and capacity, however, the pipe slope may be revised, tt is our unuersmnuing uiis worx can oc wnducwu unucr eng nationwide permits. Can this w*be accomplished under the CITs Draft Wetlands Ordinance? 3. What is the status of the critical areas inventory? What supporting data ` was used to locate area W 13? I 4. What are the city"s conditions on treating storm water within wetland areas? Page 2 Lenora Blauman 6-4067-LP-2059 5. Should wetland replacement ratios as detailed in the City's Draft Ordinance (11/7/91) be planned in our design? 6. Will storm water management (SWM) ponds, once established, remain outside the City's definition of wetlands? 7o Will SWM ponds be able to be modified at a later date to respond to possible changed conditions within the site on an adjacent property? Bt7.E®�/G So What is the current status of wetland mitigation banking in the area? If you have any questions regarding the above, please call me. Sincerely, Lori Pitzer Ungacres Park Development Org, 6-4067, MS 6Y-50 Phone (206) 393 - 7098 I I I ✓mks 5% /�'✓ v� S E� Gad/ �i✓�J�e� ,� i � � � k J �w� Z I, --set-- Rv O��6,- I I, I; II , � I (I fI� II I I Via'>v91- te___ I su i i li iI f, �I I; i �i II CSTC_CN.XLS LONGACRES PARK CSTC SITE DEVELOPMENT PRE-DEVELOPMENT AREA WEIGHTED RUNOFF COEFFICIENT #1 TUKWILA DRAINAGE BASIN (Area west of BNRR to West Valley Highway) Soil Hydrologic Curve Land Use Area Weight Weighted Group Group Number Description (SF) Curve Number Ur D 98 Building Roofs 199,206 5% 4.8 Ur D 98 Pavements 219,300 5% 5.3 Ur D 91 Gravel Parking Lots 55,080 1% 1.2 Ur D 90' Landscaping(good) 1,407,169 35% 31.3 Wo D 98 Building Roofs 48,300 1% 1.2 WO D 98 Pavements 117,300 3% 2.8 Wo D 91 Gravel Parking Lots 81,600 2% 1.8 WO D 89 Meadow 1,020,247 25% 22.4 Ng B 98 Building Roofs 19,000 0% 0.5 Ng B 98 Pavements 53,500 1% 1.3 Ng B 85 Gravel Parking Lots 29,000 1% 0.6 Ng B 78 Meadow 148,665 4% 2.9 Ng B 77` Woodland/Meadow 648,188 16% 12.3 TOTALS 4,046,554 100% 88.52 Notes: 1. Soil groups determined from Soil Survey, King County Area, Washington, Renton Quadrangle 1973 2. Hydrologic groups determined from King County Surface Water Design Manual Figure 3.5.2A 3. Curve Numbers determined from King County Surface Water Design Manual Table 3.5.2B Impervious area (curve number > = 98) = 656,606 SF Impervious area curve number = 98.00 Pervious area (curve number < 98) = 3,389,948 SF Pervious area curve number = 86.68 Drainage Basin #1 Curve Number = 88.52 Drainage Basin #1 Total Area = 92.90 Acres Not within CSTC project limits but currently drains through site Sverdrup Corporation Page 1 12/9/91 CSTC_CN.XLS LONGACRES PARK CSTC SITE DEVELOPMENT PRE-DEVELOPMENT AREA WEIGHTED RUNOFF COEFFICIENT #2 SW 16th STREET BASIN (North of & Including SW 16th Street at CUB Complex) Soil Hydrologic Curve Land Use Area Weight Weighted Group Group Number Description (SF) Curve Number Ur D 98 Building Roofs 30,393 9% 9.3 Ur D 98 Pavements 47,277 15% 14.4 Ur D 92 Landscaping/wood(fair) 139,380 43% 39.9 Ur D 98 1-405 104,605 33% 31.9 FTOTALS 321,655 100% 95.40 Notes: 1. Soil groups determined from Soil Survey, King County Area,Washington, Renton Quadrangle 1973 2. Hydrologic groups determined from King County Surface Water Design Manual Figure 3.5.2A 3. Curve Numbers determined from King County Surface Water Design Manual Table 3.5.2E Impervious area (curve number > = 98) = 182,275 SF Impervious area curve number = 98.00 Pervious area (curve number < 98) = 139,380 SF Pervious area curve number = 92.00 Drainage Basin #2 Curve Number = 95.40 Drainage Basin #2 Total Area = 7.38 Acres Sverdrup Corporation Page 2 12/9/91 CSTC_CN.XLS LONGACRES PARK CSTC SITE DEVELOPMENT PRE-DEVELOPMENT AREA WEIGHTED RUNOFF COEFFICIENT #3 NORTH MAIN TRACK BASIN (From SW 16th Street to Center of Main Track) Soil Hydrologic Curve Land Use Area Weight Weighted Group Group Number Description (SF) Curve Number Ur D 98 Building Roofs 416,498 13% 12.3 Ur D 98 Pavements 462,380 14% 13.6 Ur D 91 Gravel Parking Lots 230,345 7% 6.3 Ur D 90 Landscaping (good) 14,825 0% 0.4 Ur C 87 Sand Racing Track(dirt road) 231,825 7% 6.1 Ur D 90 Lawns(good) 1,065,145 32% 28.8 Ur D 92 Horse Walking Areas(fair) 358,237 11% 9.9 Ur D 89 Meadow 261,460 8% 7.0 Py B 85 lGravel Parking Lots 23,050 1% 0.6 Py B 80 Lawns(good) 39,962 1% 1.0 Py B 78 Meadow 222,650 7% 5.2 TOTALS 3,326,377 100% 91.15 Notes: 1. Soil groups determined from Soil Survey, King County Area,Washington, Renton Quadrangle 1973 2. Hydrologic groups determined from King County Surface Water Design Manual Figure 3.5.2A 3. Curve Numbers determined from King County Surface Water Design Manual Table 3.5.26 Impervious area (curve number > = 98) = 878,878 SF Impervious area curve number = 98.00 Pervious area (curve number < 98) = 2,447,499 SF Pervious area curve number = 88.69 Drainage Basin #3 Curve Number = 91.15 Drainage Basin #3 Total Area = 76.36 Acres Sverdrup Corporation Page 3 12/9/91 CSTC_CN.XLS LONGACRES PARK CSTC SITE DEVELOPMENT POST-DEVELOPMENT AREA WEIGHTED RUNOFF COEFFICIENT (A) TUKWILA DRAINAGE BASIN (Area west of BNRR to West Valley Highway) Soil Hydrologic Curve Land Use Area Weight Weighted Group Group Number Description (SF) Curve Number Ur D 98 Building Roofs 199,206 5% 4.8 Ur D 98 Pavements 219,300 5% 5.3 Ur D 91 Gravel Parking Lots 55,080 1% 1.2 Ur D 90 Landscaping (good) 1,407,169 35% 31.3 Wo D 98 Building Roofs 48,300 1% 1.2 Wo D 98 Pavements 117,300 3% 2.8 Wo D 91 Gravel Parking Lots 81,600 2% 1.8 Wo D 89 Meadow 1,020,247 25% 22.4 Ng B 98 Building Roofs 19,000 0% 0.5 Ng B 98 Pavements 53,500 1% 1.3 Ng B 85 Gravel Parking Lots 29,000 1% 0.6 Ng B 78 Meadow 148,665 4% 2.9 Ng B 77 Woodland/Meadow 648,188 16% 12.3 TOTALS1 4,046,554 100% 88.52 Notes: 1. Soil groups determined from Soil Survey, King County Area,Washington, Renton Quadrangle 1973 2. Hydrologic groups determined from King County Surface Water Design Manual Figure 3.5.2A 3. Curve Numbers determined from King County Surface Water Design Manual Table 3.5.26 Impervious area (curve number > = 98) = 656,606 SF Impervious area curve number = 98.00 Pervious area (curve number < 98) = 3,389,948 SF Pervious area curve number = 86.68 Drainage Basin A Curve Number = 88.52 Drainage Basin A Total Area = 92.90 Acres Not within CSTC project limits but currently drains through site Sverdrup Corporation Page 1 12/9/91 CSTC_CN.XLS LONGACRES PARK CSTC SITE DEVELOPMENT POST-DEVELOPMENT AREA WEIGHTED RUNOFF COEFFICIENT (B) SW 16th STREET BASIN (North of & Including SW 16th Street at CUB Complex) Soil Hydrologic Curve Land Use Area Weight Weighted Group Group Number Description (SF) Curve Number Ur D 98 Building Roofs 30,000 9% 9.1 Ur D 98 Pavements 56,202 17% 17.1 Ur D 91 Gravel Sufaces 10,050 3% 2.8 Ur D 90 Landscaping(good) 56,982 18% 15.9 Ur D 92 Landscaping(fair) 57,816 18% 16.5 Ur D 100 Water Sufaces 6,000 2% 1.9 Ur D 98 1-405 104,605 33% 31.9 TOTALS 321,655 100% 95.32 Notes: 1. Soil groups determined from Soil Survey, King County Area, Washington, Renton Quadrangle 1973 2. Hydrologic groups determined from King County Surface Water Design Manual Figure 3.5.2A 3. Curve Numbers determined from King County Surface Water Design Manual Table 3.5.26`` Impervious area (curve number > = 98) = 196,807 SF I9D 807 �F Impervious area curve number = 98.06 Pervious area (curve number < 98) = 124,848 SF Pervious area curve number = 91.01 Drainage Basin B Curve Number = 95.32 Drainage Basin B Total Area = 7.38 Acres Sverdrup Corporation Page 2 12/9/91 CSTC_CN.XLS LONGACRES PARK CSTC SITE DEVELOPMENT POST-DEVELOPMENT AREA WEIGHTED RUNOFF COEFFICIENT (C) NORTH MAIN TRACK BASIN (From SW 16th Street to CSTC Project Limits) Soil Hydrologic Curve Land Use Area Weight Weighted Group Group Number Description (SF) Curve Number Ur D 98 Building Roofs 383,965 12% 11.3 Ur D 98 Pavements 750,200 23% 22.1 Ur D 91 lGravel Parking Lots 164,095 5% 4.5 Ur D 90 Landscaping(good) 1,073,213 32% 29.0 Ur C 87 Sand Racing Track(dirt road) 59,970 2% 1.6 Ur D 90 Lawns(good) 381,885 11% 10.3 Ur D 92 Horse Walking Areas(fair) 16,800 1% 0.5 Ur D 100 water Suf aces 220,037 7% 6.6 Py B 80 Landscaping(good) 151,300 5% 3.6 Py B 85 Gravel Parking Lots 23,050 1% 0.6 Py B 80 Lawns(good) 39,962 1% 1.0 Py B 78 Meadow 41,400 1% 1.0 Py B 100 Water Sufaces 20,500 1 1% 0.6 TOTALS 3,326,377 100% 92.70 Notes: 1. Soil groups determined from Soil Survey, King County Area, Washington, Renton Quadrangle 1973 2. Hydrologic groups determined from King County Surface Water Design Manual Figure 3.5.2A 3. Curve Numbers determined from King County Surface Water Design Manual Table 3.5.26 Impervious area (curve number > = 98) = 1,374,702 SF 31 SL Impervious area curve number = 98.35 Pervious area (curve number < 98) = 1,951,675 SF 44 ,80 Pervious area curve number = 88.72 Drainage Basin C Curve Number = 92.70 Drainage Basin C Total Area = 76.36 Acres Sverdrup Corporation Page 3 12/9/91 STAGSTORALC Stage vs Storage Curves for Pre- and Post- Development 17 -------------.-----....-------_................................;................................._..----......................................................,..................................,.................................;--................ ..-... ........................... _._._._----------------------....................._........... ........._................. 16 .............................................................................._._......................_...... .............................. .............. ...._...............---- - ----- ........................... .............................!....................._.......... ......_... ........... ............ .................... 15 ... ....................... .....................--_................_...................... ._.............................._. .................. , 14 .............................;.................................;................... .........;..... ! ............. .............................. ............................... ... .................................. ...._._................... _......................... ._................ 13 :.............. ..... ....;........................................._....................._ ..... ............._..........................................._.....-... ........... _.--_--------....-_-- _----------..._...._.-. ...................... o : � 12 -- -.. .......i._...............................i.................................i.................................i_... ..........--------i----_.._......._---...........i.......-----....---....-------i................................1.................................i--....._-------------..---i--_....._---_.._._..i...........-_.... --------- Z ------------------------ ............ ...... ......,............................._... 10 ...... .....................;............... ..._.......;..........-................................................... Post-Development 9 ;................................_......... ................. ...... ...... -----.................__ ............ Pre-Development 0 Pre-Development Flood Storage • 8 ................. i.................................;................................;................................. ..................................;..............................................................._ ........... 7 .................._............_.................................---------------............._...................-.......... ........................................................... ........................... ........................... ............................ 6 0 10 20 30 40 50 60 70 80 90 100 110 120 Storage(acre-feet) Sverdrup Corporation Figure_ 12/9/91 DISHEVNT.XLC Discharge vs Recurrence Event for Pre- and Post- Development 40.00 ------------------------------------ .................................................................................................................................................................. ................ ...................................................... ...................... _Q 35.00 .................................... ...................... ............. ----------- ............ ...................... ................ ............... .................................. ■ Post-Development 0 Pre-Development 30.00 . .................................................................................... ................... ..... .............................. ................ .................-. ......... ................... ................................................................................... .........-.............. 25.00 ------------ . ............. ........... .............................. 100-Yeai 7-Day 20.00 ------------------------------ .................... .... .. ... ................. ........ .......................................................... ......... ........... ................................................................. ...................................... Event a 3 Closed Der ressi)n 15.00 ----------------------------- ...................................... ................................................................................... ............... ............ ......................................................... ..... ...... -.......... ........... 10.00 ........................................................................................................... ....................................................................... .............. ................................_...a........._ ............. ...............- ..................... Wa r'.Quality Evert 5.00 ............. ........................ ............................... ............................................... .............. ------................................................................... ........................................ ........... 0.00 1 2 5 10 25 50 100 1000 Recurrence Interval for 24-Hour Storms (years) Sverdrup Corporation Figure_ 12/9/91 OUTSTAG2.XLC Outflow vs Stage for Pre- and Post- Development Flood Sills 500 ----------------- ----------------- ------------------------------------------­--------- ---------------------------------------------------.................................................----------------------- • Post-Development 400 --- ....... ------------- . . .................................................................. ..... 0 Pre-Development t 300 ------------------------- --------------------------------I------- ---------­_1 ------- I--------------- ---------I------- ------ -I-------- 0 C) 200 ......................... ....... ....... ....... -------- ....... ------- ........ .......I-------- ........I--------.............................. ------- -------- .... .........-------- - ---- ------- o 100 0 14 14.5 15 15.5 16 16.5 Stage(NGVD) Sverdrup Corporation Figure_ 12/9/91 OUTSTAGEALC Outflow vs Stage for Pro- and Post- Development Site 45 ----------------------------------......................................................................................................................................................................... ...................................................................... ................................................... ............................ 40 ............................... ................................................................. ........... . ..................... .............................. ........... ................. .................................................................................................................................................. 35 .........................T ............................. ...................4....................... .............................. ....................... .... ........................ .... ......................... .... -----------.................................................................... 30 ................................ --------- ---------.......... cn 25 .............................. .................. r......................... .......t.................................... .........................................................---------------------------------- ........................... ......t.................................... ........................... ......................................... ..... ......................................... ................................ ..................................... ................................................................................................................................ o 20 --------------- ..........I......................... ------------------------------- ........................... ................................... .................................. ............................................................... .......................................... ... t................................... ■ Post-Development 10 ..................................................................................... ......................................... ................................4............................................................................... 0 Pre-Devel ent ...t ...........................I opm 5 ........................----------........................ ....... ................_----------------.......................................................... ............................... 0 6 7 8 9 10 11 12 13 14 15 16 17 Stage(NGVD) Sverdrup Corporation Figure— 12/9/91 SD_SUMMY.XLS Existing Site Outflow Using Existing Storage Conditions Storm Inflow Outflow Elevation Reduction Total Volume Closed Depression Event (cfs) (cfs) (NGVD) (%) (cf) (NGVD) Water Quality 2.70 2.60 9.06 96% 97,900 11.15 2-Year 24-Hour 27.98 22.49 10.59 80% 681,797 12.80 5-Year 24-Hour 37.52 27.36 10.88 73% 896,041 13.19 1 0-Year 24-Hour 48.69 31.41 11.12 _ 65% 1,161,633 13.61 25-Year 24-Hour 56.47 35.05 11.34 62% _ 1,441,900 14.05 50-Year24-Hour 57.06 35.41 11.36 62% 1,469,134 14.08 100-Year 24-Hour 65.08 37.26 11.54 57% 1,726,400 14.43 100-Year 7-Day 45.65 36.21 11.42 79% 4,730,311 15.24* * Note that outflow occurs above elevation 15.00' over the existing NE Meadow Sill. Post-Development Outflow Using Proposed Storage Conditions Storm Inflow Outflow Elevation Reduction Total Volume Closed Depression Event (cfs) (cfs) (NGVD) (%) (cf) (NGVD) Water Quality 5.03 2.06 7.24 41% 117,276 8.28 2-Year 24-Hour 35.96 11.67 8.71 32% 718,116 10.08 5-Year 24-Hour 47.20 14.49 8.97 _ 31% 935,209 10.49 1 0-Year 24-Hour 60.77 17.86 9.24 29% 1,201,180 10.99 25-Year 24-Hour 70.58 21.67 9.51 31% 1,480,545 11.44 50-Year 24-Hour 71.62 22.13 9.54 31% 1,511,537 11.48 1 00-Year 24-Hour 81.20 25.67 9.77 32% 1,778,975 11.91 100-Year 7-Day 48.16 24.52 9.70 51% 4,823,624 15.18* * Note that outflow can occur above elevation 14.00' over the proposed Floodplain Sill. Comparison of Existing Conditions to Post-Development Storm Inflow Outflow Elevation Reduction Volume Closed Depression Event (cfs) (cfs) (NGVD) (%) Increase (cf) Differential feet Water Quality 2.60 2.06 7.24 79% 19,376 2.87 2-Year 24-Hour 22.49 11.67 8.71 52% 36,319 2.72 5-Year 24-Hour 27.36 14.49 8.97 53/° 39,168 2.70 10-Year 24-Hour 31.41 17.86 9.24 57% 39,547 2.62 25-Year 24-Hour 35.05 21.67 9.51 62% 38,645 2.61 50-Year 24-Hour 35.41 22.13 9.54 62% 42,403 2.60 100-Year 24-Hour 37.26 25.67 9.77 69% 52,575 2.52 100-Year 7-Day 36.21 24.52 9.70 68% 93,313 0.06 Sverdrup Corporation 12/10/91 FIELD DATA LAB ANALYSIS <------------------------------------------------------- --------------------------------------> <------------------------>� SITE #3 AIR WATER # samples GAGE TEMP TEMP pH DO C.COND TSS TOC SITE #3 COMMENTS composited DATE TIME ELEV. (00 (oC) (mg/1) (umhos/cm) (mg/1) (mg/1) ------------------------------------------------------------------------------------------------> <------------------------> ---------------------- 1 composite 06/18/91 10:50 N/A 18 15.9 6.94 0.55 613 240 20.0 init. baseline, no rain 06/24/91 N/A N/A N/A N/A N/A N/A N/A 07/01/91 11:50 N/A 24 20.3 7.31 0.58 542 07/08/91 10:45 N/A 24 17.6 7.62 1.33 448 07/15/91 10:45 6.33 15 16.9 7.04 0.83 467 07/23/91 11:05 6.29 22 18.4 7.23 1.60 468 1300 30.0 Very high TSS 1 composite 07/29/91 15:20 6.25 25 21.8 7.62 3.13 456 08/05/91 14:30 6.25 24 21.2 7.49 0.87 522 1 composite 08/12/91 14:50 6.25 28 20.4 7.70 1.97 74 32 30.0 08/19/91 10:25 6.21 24 19.5 7.74 1.69 70 08/26/91 11:05 6.29 17 15.0 7.38 1.53 326 100 29.0 09/02/91 11:15 6.29 22 18.5 7.89 1.40 332 84 18.0 09/10/91 14:05 6.33 23 16.2 7.64 0.82 489 09/16/91 11:10 6.42 23 13.5 7.30 1.36 327 09/23/91 12:10 6.33 22 14.0 7.23 0.08 13 Suspect C. Cond. 09/30/91 12:45 6.12 20 18.8 6.43 3.00 392 10/07/91 - 6.00 15 10.9 7.45 3.23 358 10/15/91 9:30 5.92 15 18.4 7.21 2.91 397 1 composite 10/21/91 16:30 5.67 10 11.8 6.81 4.12 342 20 24.0 2 composites 10/28/91 11:15 5.67 7 6.6 7.14 1.08 268 40 20.0 11/04/91 12:50 6.58 7 9.3 6.82 7.05 195 4 composites 11/11/91 13:55 7.10 12 12.8 7.01 10.06 98 110 10.0 11/18/91 11:10 6.42 7 8.7 7.12 6.51 171 230 11.0 2 composites 11/25/91 13:00 6.42 8 10.2 7.21 5.57 185 2 compostes 12/02/91 11:25 6.42 6 7.3 7.27 2.77 312 Heavy sedimentation 9,composites 12/09/91 11:10 N/A 10 8.6 7.27 8.61 149 FIELD DATA LAB ANALYSIS <----------------------------------------------------------------------------------------------> <------------------------>� NO. INFIELD CR. AIR WATER NO. INFIELD CR. COMMENTS GAGE TEMP TEMP pH DO C.COND TSS TOC DATE TIME ELEV. (oC) (oC) (mg/1) (umhos/cm) (mg/1) (mg/1) - ->-----------------------------------------------------------------------------------------------> <----------------------- ------------------------- 09/30/91 N/A N/A N/A N/A N/A N/A N/A 91 36.0 Very low flow 10/07/91 9:25 N/A N/A N/A N/A N/A N/A 40 days no rain 11/04/91 12:30 N/A N/A N/A N/A N/A N/A 49 13.0 11/11/91 14:50 N/A N/A N/A N/A N/A N/A 120 13.0 11/18/91 11:40 N/A N/A N/A N/A N/A N/A 73 8.0 FIELD DATA LAB ANALYSIS j<---------------------------------------------------------- ----------------------------------> <------------------------>1 SOUTH MARSH AIR WATER SOUTH MARSH OUTLET OUTLET GAGE TEMP TEMP pH DO C.COND TSS TOC COMMENTS DATE TIME ---- -ELEV_-- -(oC)--------(oC)---------- ----- -(mg/1) (umhos/cm) (mg/1) (mg/1) ------------------------ - -------------> <------------------------>I------------------------- 11/12/91 8:30 9 14.0 11/18/91 12:15 N/A N/A N/A N/A N/A N/A 15 14.0 LONGACRES PARK ON-SITE WATER QUALITY MONITORING Prepared by: STORM EVENT SAMPLING REPORT PEI/BARRETT CONSULTING GROUP FILE: STORM 12/08/91 j<----------------------------------FIELD-DATA AIR WATER GAGE TEMP TEMP pH DO C.COND COMMENTS DATE TIME ELEV. (oC) (ON (mg/1) (umhos/cm) ------------------------------------------------------------------------------------------------> ------------------------- SPRINGBROOK 12/05/91 14:50 2.81 9 9.7 7.35 7.43 124 Winter storm sample event No. 1 N. INFIELD CR. 12/05/91 15:40 - 9 10.1 7.06 8.34 47 Winter storm sample event No. 1 S. MARSH INLET 12/05/91 16:25 2.74 9 9.1 6.44 5.11 44 Winter storm sample event No. I LAB ANALYSIS <----------------------------------------------------------------------------------------------> • TSS TOC COMMENTS - -----------------------------------------------------------------------------(m9/1)------------(mg/1)------- ------------------------- SPRINGBROOK Analyis not yet available N. INFIELD CR. Analyis not yet available S. MARSH INLET Analyis not yet available • LONGACRES PARK ON-SITE WATER QUALITY MONITORING Prepared by: LABORATORY ANALYSIS AND FIELD TESTING REPORT PEI/BARRETT CONSULTING GROUP FILE: H2OTEST 12/08/91 FIELD DATA LAB ANALYSIS j<----------------------------------------------------------------------------------------------> <------------------------>1 SPRINGBROOK AIR WATER SPRINGBROOK CK CREEK GAGE TEMP TEMP pH DO C.CONO TSS TOC COMMENTS DATE TIME ELEV. -------(oC)--------(OC)------------------(mg/1)--(umhos/cm)-> <-----(mg/1)- (mg/1) ------------------------------------ ------------>�------------------------- 06/18/91 N/A N/A 18 15.0 6.97 2.80 350 10 8.5 06/24/91 16:00 3.86 29 17.9 7.10 2.68 335 13 7.5 07/01/91 11:15 3.85 24 19.0 7.16 2.28 374 18 8.2 07/08/91 11:10 3.77 24 16.5 7.49 3.59 319 13 6.5 07/15/91 10:00 3.79 15 16.2 6.63 3.52 364 14 5.4 07/23/91 11:05 3.77 22 16.9 7.26 2.97 343 15 7.4 07/29/91 15:00 3.76 25 20.1 7.26 3.25 389 11 7.9 • 08/05/91 14:10 3.71 24 19.3 7.00 1.68 404 12 8.5 08/12/91 14:30 3.81 26 19.7 7.25 4.26 61 11 13.0 08/19/91 10:00 3.81 23 18.2 7.45 2.70 57 12 7.8 08/26/91 10:35 3.87 17 14.5 7.14 4.25 271 7 7.2 09/02/91 10:30 3.81 22 18.2 7.32 5.42 212 7 7.2 09/10/91 13:30 3.91 23 15.6 7.14 5.48 290 8 5.3 09/16/91 10:20 4.06 23 13.4 7.19 4.90 322 9 6.5 09/23/91 11:30 4.51 22 14.6 7.16 5.44 3 4 5.2 Suspect C. Cond. 09/30/91 10:00 4.56 20 17.8 6.28 5.20 345 9 4.7 10/07/91 10:20 4.55 15 12.7 7.02 5.76 316 8 3.7 10/15/91 8:40 4.51 13 11.1 6.93 5.05 344 8 4.6 10/21/91 17:20 4.41 10 12.5 7.06 4.42 347 6 5.8 10/28/91 10:30 4.32 7 8.4 7.25 4.21 272 11 6.2 11/04/91 13:25 4.96 7 8.9 6.99 6.98 159 18 5.4 11/11/91 13:15 5.31 12 11.9 6.68 8.40 129 42 6.3 11/18/91 10:30 4.81 7 9.4 6.69 6.75 156 9 15.0 11/25/91 12:30 4.71 8 10.5 7.20 6.51 134 12/02/91 10:40 3.96 6 8.3 7.18 5.14 287 12/09/91 10:25 N/A 10 8.8 6.75 7.56 139 WAEMORANDUM To R 1—� Date From LA&AAnk,. t Subject Boeing Commercial Airplane Group P.O.Box 3707 • Seattle,WA 98124-2207 6-4067-LP-2057 November 21, 1991 BOE/NG Lenora Blauman City of Renton Municipal Building 200 Mill Avenue South Renton, WA 98055 Subject: Transmittal of Draft Floodplaui/Storm Water System Report for the CSTC Site Development; Longacres Project Dear Ms. Blauman: Attached for your review are eleven (11) copies of Technical Information Report on the Floodplain/Storm Water System (dated November 1991) for the Customer Services Training Center site. This report is intended to meet the requirements for a drainage study under the Storm and Surface Water Management Ordinance. Please distribute this report to the appropriate persons for review. Review comments can be transmitted to me by either mail or fax (393-3093). We would appreciate a timely response as this report will be included with the environmental review package we are currently preparing. Sincerely, Lori Pitzer 6-4067, MS 6Y-50 393-7098 0 CITY OF RENTON MEMORANDUM DATE: December 5, 1991 TO: Lenora Blauman VIA: 1: Dick Anderson FROM Pandall Parsons STAFF CONTACT: Ron Straka SUBJECT: Boeing Longacres Park Office Complex-Determination of Significance Scoping Period Comments The following are the Stormwater Utility's comments regarding the EIS scoping for this project as you requested. In general, the scoping notice has addressed most of our concerns, however we recommend that you consider the following additional information for inclusion in the Checklist or Scoping Notice, where appropriate. Surfacewater: The projects surfacewater management plan must satisfy the current City of Renton Storm and Surface Water Drainage Code requirements as well as the regulatory requirements for other agencies such as the Washington State Department of Ecology, Washington State Department of Fisheries and United States Environmental Protection Agency. It should be noted that the surfacewater facility performance requirements of these other agencies may exceed those currently contained in the City's Code. Upstream and downstream impacts on Springbrook Creek resulting from the project must be addressed. Particular attention must be given to the project impacts on the existing 100 year floodplains which exist on and adjacent to the site. It is likely that any filling within the designated floodplain will require the provision of compensatory storage in order to insure no increased flooding impacts to upstream, downstream and adjacent property owners. Due to the magnitude of the project and subsequent potential impacts, however, a hydrologic/hydraulic analysis should be conducted which demonstrate that any proposed compensatory storage will be effective in preventing the increase in the actual floodplain (simulated) and the regulatory (adopted FEMA) floodplains. The project's impacts on the regional drainage plans/studies/facilities should also be considered (i.e. City of Renton East Side Green River Watershed Plan, City of Tukwila Nelson Place/Longacres Way Drainage Plan, City of Kent?, King County's operation and maintenance of the Black River Pump Station, Existing P-1 Channel/Spring brook Creek drainage system). The City has completed a hydrologic and hydraulic simulation models for the Springbrook Creek/Black River Watershed and these models could provide the basis for the analysis noted above. Note, the models prepared for the current landuse conditions was prepared with the Longacres area assumed to be a race track,not commercial use. As we noted in our memorandum to you of October 28, 1991, we have amended our contract with the consultant's preparing the Eastside Green River Watershed and Black River Water Quality Management Plans for us to assist us in review of the stormwater management plan and supporting calculation for this project. Their work could include simulation computer runs to perform the analysis noted above, although it is likely additional funds will need to be budgeted for this additional work. We are still awaiting a response to our memo with regards to the accounting authorization to reimburse our 421 C.I.P. account for this work prior to authorizing our consultant's to proceed. OEMORANDUM • To Date From Subject 1 BOEING AFC 3 'F L1 LONGACRES PARK '�T= SITE DEVELOPMENT DISTRIBUTION LIST NAME PHONE# M/S ACTION DANA BUSS 544-5986 8L-87 ANDREW CLAPHAM 544-6002 13-03 JIM COULTER 454-9562 SVERDRUP GARY CROWDER 393-4877 6Y-94 GARY GORDON 393-3532 7E-EH HAL HARTMANN 865-7337 7R-40 DICK KENT 393-7361 8L-11 MARK MOTTLE 393-2122 8L-48 BILL NIGHTINGALE 393-7363 8L-11 TERRY LEWIS 655-5418 14-49 t/ MICHAEL MESEROLL 544-2593 13-03 ROCK MOUG 655-9821 13-03 JIM NUERENBERG 393-7362 8L-11 MICHAEL RICKETTS 655-0449 22-05 PAUL SEELY 655-2133 14-49 SAM STITT 655-8955 13-03 FRED STEWART 342-1130 OH-26 O.J WESTERLUND 393-2293 7E-74 BOB WICKLEIN 655-0785 13-03 R MICHAEL WILSON 981-1555 S.O.M. ✓ THOMAS WRIGHT 477-3896 6U-XA �ENOiZ m 235-25W je-C-4 ENCLOSED: t&e,-roc, Sc.PE c� /rlAs NM-s-C- 17�•1r T Andrew Clapham Date o� g Longacres Park File SrE -4-�4 Site Development Proj. Eng. 544-6002 MS 13-03 Print Date: 4/24/91 CITY OF RENTON MEETING REPORT Longacres Park Site Development Contract No. 90-8002-AC Date: April 17 , 1991 Time: 1: 30 P.M. Place: City of Renton's Office Subject: Scope of Master Drainage Plan Present Representing Andrew Clapham`::° BE&C Engineers Mike Sullivan BSS Facilities Lenora Blauman City of Renton, Project Manager Ron Straka City of Renton, Storm Water Randall Parsons City of Renton, Storm Water Manager Mike Brooks Peter Walker & Associates Mike Giseburt R.W. Beck & Associates Steve Bichich Sverdrup J. David Benson Sverdrup Jeff Schutt Sverdrup Items Discussed: 1. Core Requirement 1. Discharge at the Natural Location The current concept is to seek a variance to allow discharge at one of the existing discharge points, rerouting two existing discharge points to this location. The existing discharge point located behind the training track has an associated wetland but according to survey elevations this wetland is fed by Springbrook Creek. There is a possibility to direct some of the flow toward this location after passing under Oakesdale Ave. What would be your preliminary reading on the advisability of providing this? Renton stressed that any variances must be justified technically and shown to have no adverse effects on the environment. They also suggested that issues such as this not be made into separate variances, but rather combined to be presented as a package within a Master Drainage Plan showing mitigation efforts. 2 . Core Requirement 2. Off-Site Analysis The only upstream tributary drainage area is the Nelson Place/158th Ave. basin located within the City of Tukwila. We contemplate using the study conducted by Tukwila and constructing the 42 inch culvert as envisioned in the plan within the right-of-way of SW 16th Street. Do you see any requirements for further off-site analysis? Renton agreed with using the Tukwila study to define basin areas and inflows, however they said that this study had not necessarily met all requirements for water quality. Additionally, SW 16th Street is beyond the scope of the original MEETING REPORT April 17 , 1991 Page - 2 Tukwila study, and its runoff quantity and quality will need consideration in design. Off-site roadway drainage, where control and ownership will be returned to the City of Renton should be separated from the site drainage to allow maintenance by the City. 3. Core Requirement 3. Runoff Control We have done modeling with SBUH, HEC1 and TR55 of the existing conditions, and developed post development peak rate runoff hydrographs for comparison. We would like to review the curve numbers chosen for the various material types prior to developing the runoff control devices. Renton said to use the curve numbers in the King County Surface Water Design Manual. The 7-day storm may adjust curve numbers compared to using a 168 hour storm, they will contact Curt Crawford to confirm this fact. 4 . Core Requirement 4. Conveyance System The system will be designed in accordance with the requirements. Size the system for a 25 year event with the rational method and complete a backwater analysis of a 100 year storm. S. Core Requirement 5. Erosion/Sedimentation Control Does this plan have to be in effect for the demolition portion of the project? Do these provisions have to be shown in the preliminary submittal to be delivered with the SEPA checklist? We are planning a sedimentation pond near the outfall to Springbrook Creek while construction of the site wetponds are underway. During future phases of the work individual sedimentation ponds will be constructed with the flow flowing through the wetpond system prior to outfall to Springbrook Creek. A narrative of the plan specifics will be adequate, but the demolition permit will require an erosion and sedimentation control plan. A phased demolition permit is possible. The use of a portland cement concrete recycling area should be designed as a small work site to prevent contamination of watercourses with concrete dust particles. A covered site would not require an erosion control plan. 6. Core Requirement 6. Maintenance and operation Boeing will provide maintenance and operation of the facilities constructed as part of this plan. Renton said that Sverdrup must complete a maintenance manual for Boeing with specific call-outs for facilities operation. MEETING REPORT April 17 , 1991 Page - 3 7 . Core Requirement 7 . Bonds and Liability Boeing will provide bonds as required for the work. No comments made. S. Special Requirement 1. Critical Drainage Areas No critical drainage area is associated with this project, therefore, this requirement does not apply. No comments made. 9. Special Requirement 2 . Compliance with an Existing Master Drainage Plan Compliance with an Existing Master Drainage Plan; The only existing master drainage plan is the Nelson Place/Longacres Way study. We are contemplating installing the 42" culvert within SW 16th Street in compliance with that study. No comments made. 10. Special Requirement 3 . Conditions Requiring a Master Drainage Plan This site will not eventually construct 50 acres of impervious surface, therefore this requirement is deemed not to apply. 50 . 0 acres of impervious surface is the absolute limit of impervious surface. Depending upon the 50 acre impervious question the site may or may not require a Master Drainage Plan even if we have less than 50 acres of impervious surface. 11. Special Requirement 4 . Adopted Basin or Community Plans No adopted basin or community plan exist for this area so this requirement is deemed not to apply. No comments made. 12 . Special Requirement S. Special Water Quality Controls Is Springbrook Creek a type 1 or 2 stream? The present concept is to utilize a wetpond system, however, the sediment basin may be a wetvault rather then part of the pond system. Springbrook Creek is a type 1 stream. The State of Washington has extended shoreline limits south to 180th Street. MEETING REPORT April 17 , 1991 Page - 4 13. Special Requirement 6. Coalescing Plate Oil/Water Separators The project site will have more then 2 , 500 vehicles parking in the various subbasins. Is this requirement for individual parking lot areas, the entire site or ? The requirement is based on subbasins as a minimum. SW 16th Street and Oakesdale will have separate facilities because they will be owned by Renton. Based on research conducted by Dr. Rich Horner, of the University of Alaska for the BCS Bellevue Campus, the use of additional swales and large volume wet ponds may be more beneficial to water quality than using CPS technology. The CPS units do not have to be placed in front of the water quality swales and a proposal to monitor water quality and install CPS units later may qualify for approval. 14. Special Requirement 7 . Closed Depression In some storm events portions of the site behave as a closed depression, however not in most therefore, this requirement is deemed not to apply. The flood gates (when operating correctly) on Springbrook Creek imply that the site has closed depressions. The 16 . 4 foot flood elevation is a safe assumption. 15. Special Requirement 8. Use of Lakes, Wetlands, or Closed Depressions for Peak Rate Runoff Control At this time this requirement is deemed not to apply, however, the wetlands at the Southeast corner may be used for additional detention. No comments made. 16. Special Requirement 9 . Delineation of 100 year Floodplain We are using the 16. 4 floodplain elevation provided in the FEMA documents for the Longacres site. No comments made. 17 . Special Requirement 10. Flood Protection Facilities for Type 1 and 2 Streams No flood protection facility currently exists. The plan is to locate buildings at elevation 18 . 4 two feet above the flood plain elevation. Major roads and emergency access to all buildings are located above the 16.4 foot FEMA flood elevation. Parking lots may be located below elevation 16.4 feet. MEETING REPORT April 17 , 1991 Page - 5 18. special Requirement 11. Geotechnical Analysis and Report Since a pond is being proposed we are investigating the potential impacts on the groundwater. Geo Engineers are completing the report. 19 . Special Requirement 12 . Soils Analysis and Report The existing mapping appears sufficient and this requirement is deemed not to apply. No comments made. Presentation of preferred storm drainage-water quality concepts Mike Brooks of Peter Walker and Partners presented a drawing showing the proposed landscape concepts. Dave Benson of Sverdrup Corporation presented swale and oil/water separator detail drawings and discussed the impacts of both, specifically depth of installation constraints. He also discussed a proposed monitoring program for water quality and quantity sampling, and displayed a schematic of locations. Renton suggested monitoring water quality upstream and downstream of the site, but cautioned that any work done may have to be repeated at a later date by a D.O.E. certified firm. Renton also said that any work in the area of the SW 16th Street bridge would require a Work in Right-of-Way Permit, available on the fourth floor of City Hall . H.P.A and D.O.E. permits could be required as well. J y ch t Origina or These minutes are an interpretation of the discussions held. Any additions or corrections to these minutes should be provided in writing to the Originator as soon as possible. L A AA Ck' _.__ __ _ _....____ _-_ 7_J�_.__..____.__._.______..._...___._______._ _.___.__...__.__.._ _.---------- : Ip -._.__.............. __._._.._____ i� li ;E h 1j S r ty v - 1� OIL- .. ..._.. _ .__. _.. .. _. . __..._ _ _.._._ _ ... __.. i Ti I� !I Ij h I II II li i; I( March 27, 1992 OFFICE OF THE HEARING EXAMINER CITY OF RENTON REPORT AND DECISION APPLICANT: THE BOEING COMMERCIAL AIRPLANE COMPANY Storm Water Management Test Lake File No.: SP-120-91 LOCATION: South of SW 16th Street; north of SW 19th Street (if extended); west of Oakesdale Avenue (if extended) SUMMARY OF REQUEST: The applicant is seeking a special permit to create an approximately .96 acre lake to test the viability of providing a full-size lake (to serve as a segment of the storm drainage management system, and as a water amenity) at the time of development of the Boeing Commercial Airplane Training Center SUMMARY OF ACTION: Planning Division Recommendation: Approval with Conditions PLANNING DIVISION REPORT: The Planning Division Report was received by the Examiner on March 17, 1992 PUBLIC HEARING: After reviewing the Planning Division Report, examining available information on file with the application, and field checking the property and surrounding area, the Examiner conducted a public hearing on the subject as follows: MINUTES The hearing was opened on March 24th at 9:05 a.m. in the Council Chambers of the Renton Municipal Building. Parties wishing to testify were affirmed by the Examiner. The following exhibits were entered into the record: Exhibit #1 - Yellow File containing application, proof of posting and publication and other documentation pertinent to this request. Exhibit #2 - Longacres General Site Exhibit #3 - Vicinity Map Exhibit #4 - Topographical Map Exhibit #5 - Test Lake Agreement Boeing Commercial Airoe Company ' SP-120-91 March 27, 1992 Page 2 The hearing opened with a presentation of the staff report by LENORA BLAUMAN, Senior Planner, who stated that the proposed test lake was to be located on the future Customer Services Training Center (CSTC) site, which is a 51 acre property immediately to the north of the future proposed Longacres Park office complex site, which were two separate properties, segregated under King County standards. The test lake was proposed to be slightly less than an acre and approximately 11,000 cubic yards of soil would need to be excavated. The test lake area was considered to be a Class III, highly degraded wetland, however, the U.S. Army Corp of Engineers didn't consider this to be a wetland and required no permit. The Department of Ecology was in support of the creation of the lake in the area which was, basically, a grassy depression. In addition, the test lake had been designed to serve as a wetland. The Examiner asked about the difference between a lake and a wetland. Ms. Blauman referred the question to the applicant, but said a cutoff point between a lake that does not function as a wetland and a lake that can function as a wetland was a depth of about six and a half feet. This test lake would also be constructed so that there would be a general, gentle incline to encourage wetland- type plantings. If the facility didn't work as a wetland as well as a lake, the Environmental Review Committee (ERC) had a plan for compensating accordingly. Boeing would monitor and test on a regular basis. The ERC issued a Determination of Non-Significance (DNS) on January 27, 1992 with mitigating measures. Some modifications were needed and a modified mitigation document (DNSM) was issued which included limits on the length of the operation of the test lake, plans for restoring it if it did not work, monitoring construction, plans for making sure that the stockpiling was successfully conducted, and plans for testing the soil for contamination, some of which had already been done. The test lake was being created in a 13 acre wetland. If the wetland's ecology system didn't work, then the applicant would have to put in the standard mitigation called for by both the City's wetlands ordinance and DOE guidelines. The City had requested and the applicant had provided a limited right-of-entry agreement so that the City could inspect progress at the site, and a landscaping maintenance surety device to ensure that wetland plantings were protected. The City had also asked for a plan to make sure that the roadway and the access to Longacres were kept open at all times during the excavation and construction of the stockpile. Ms. Blauman said the applicant had provided all plans called for by the ERC. The ERC also called for an agreement, which had been approved in principle with modifications which were incorporated. The City Attorney was presently looking it over. The Examiner said that the ERC required a number of agreements. Ms. Blauman said that was right and that they were incorporated into a single document. Because there would be disturbance of the soil, excavation of the 11,000 cubic yards, a special permit was called for, and Ms. Blauman reviewed the criteria used by the Examiner in reviewing special permit requests (here summarized): Size and location; Traffic volumes and patterns; Screening, landscaping, fencing and setbacks; Unsightliness, noise and dirt; Surface water; Reuse of the site, and; Protection of the public trust. The test lake would be installed on a previously-filled site located in the 100 year flood plain on the southwestern portion of the future training center site, which was the northwest portion of the site as a whole. There would be about 1,250 truck trips, each moving 11 cubic yards of excavated material to the storage area on the site. The Examiner asked for confirmation that the trucks would stay on the site. Ms. Blauman stated that once the trucks were on the site, they would stay on the property during the hauling operation. The plan was to have continuous work, 24 hours a day, beginning on Sunday afternoon and ending on Tuesday evening so that the raceway activities were not interfered with. The Examiner asked how many people still lived in the general vicinity, to which Ms. Blauman answered that there was only one resident and the project was taking place on private property located well away from any residences. The Examiner said the ordinance put a limit on hours of operation unless it was an emergency situation and he didn't see how this qualified. Ms. Blauman advised that she didn't think it would qualify if emergency was defined as, say, a slide onto the roadway, but since this was on private property, well away from any residential use at all, and the idea was to reduce conflicts from persons and trucks, and to create a test lake in time to test for Boeing Commercial Aiiane Company • SP-120-91 March 27, 1992 Page 3 storm drainage, she thought it could fit into that category. The Examiner said the ordinance required routine and regular inspections and asked whether City inspectors would be available 24 hours a day. Ms. Blauman answered that it could be arranged if so requested by the Examiner. She also said the trailer park and a number of scattered residences to the north of Longacres had all been removed and/or demolished. Due to the size and hours of the operation, the setback from neighboring properties, and the fact that activities would be occurring over a very limited period of time, staff was not asking that fencing be required around the site, but was calling for signage and whatever impediments would be necessary to prevent danger to passersby. The stockpiled excavation materials would be covered between each of the four-week work periods and when completed, spread and hydroseeded. The Examiner asked whether the stockpiled 11,000 cubic yards of material would displace 100 year flood storm waters. Ms. Blauman referred that question to Ron Straka, and said the site would be watered during excavation and hauling to control dust and dirt. The ERC had established a number of mitigation measures, including keeping hydroseeding going, and an off-site cleanup deposit to keep the impacts to a minimum. Permission had been requested to do construction in blocks and it was estimated that these various blocks would go on over a four-week period, however, inclement weather could cause alternative selection of a different block of time. Regarding surface water, Ms. Blauman said the site was in the Renton Industrial Drainage Basin and ERC conditions had been established to control when the lake was constructed, what it did, and when remediation was needed, as well as compliance with Code requirements, which should address those impacts. Regarding reuse of the site, the applicant had submitted materials for construction of the training center, a 600,000 square foot complex with two smaller utility buildings. If the test lake proved successful, then the completed lake would cover 3.3 acres. If unsuccessful, it would be remediated under a separate permit using the stockpiled materials.. Regarding the public trust, the applicant planned to condense the excavation in the shortest period of time and hydroseed the stockpile which should not create an undue burden on the City or the community. Staff recommended support of the application, with the following conditions: that applicant comply with ERC conditions, notify owners of properties within 300 feet north and west of the site and the Longacres operation, and verify compliance with the Renton noise ordinance and applicable provisions of the City Code for site preparation, comply with the Mining, Excavation and Grading Ordinance, the Noise Ordinance, the Land Clearing and Tree Cutting Ordinance and the Surface and Storm Water Management ordinance. A Routine Vegetation Management Permit would be needed and staff also required that the City and the applicant both provide representatives to field questions, answer concerns, and respond to comments from the community in case problems occurred. Ms. Blauman assumed she would be the City representative in this matter. At this point the City Attorney, Mr. Larry Warren, arrived with the tentatively approved Test Lake Agreement which was entered as Exhibit #5. LORIE PITZER, Permit Administrator, The Boeing Company, Longacres Park Development Project, P.O. Box 3707 MS/6Y-50, Seattle, WA 98124, confirmed that the Examiner was in receipt of the brief and motion prepared by the applicant's law firm, Perkins Coie. She said the test lake was a research project of a temporary nature, to be there for 18 months with a possible six-month extension. Depending upon success or failure, it would either be mediated or expanded into the 3.3 acre lake. If successful, the test lake would be subsumed by the larger lake. The applicant was in agreement with the revised MDNS. She made some clarifications to the staff report: Page 3, G1: "soil excavated for the test lake will be tested to ensure that it is clean prior to stockpiling." Boeing would only test the soil if contamination was suspected. According to previous soil testing on the site, no contamination was suspected in the area where the test lake would be located, however there would be an environmental inspector from Boeing on the site during excavation to monitor the soil. The Examiner asked if the initial soil examination was cursory. Ms. Pitzer agreed that it was, but said their opinion was also based on the history of the site, and said areas of possible contamination would be around the maintenance areas and nothing out in the infield should be contaminated, but the inspector would be Boeing Commercial Airoe Company ' SP-120-91 March 27, 1992 Page 4 present during excavation. Two vicinity maps showing the general location of the test pit northwest of the track or on the track were also in the staff report. She clarified that it was on the infield of the track and should not interfere with the operation of the track. The Examiner asked what would be considered successful regarding wetland versus whether this area would retain water and be a lake. He understood that it took longer than 18 months to establish a wetland. He also questioned whether the stockpiled material would displace the 100 year storm waters. If the site was spongy and had the ability to hold water that was not normally there, and it was turned into standing water or a lake, he wasn't sure how it would serve potential storm water purposes. Ms. Pitzer said that David Benson would be able to answer those questions and some of the questions were those that Boeing was trying to answer with the creation of the test lake. As a condition of the DNSM, the applicant had turned in a plan from Shapiro and Associates that addressed the wetland issue. It basically established that by lowering the elevation to 6.5 - 6.6 feet it would still be a wetland, just of a different type. An assessment of the existing wetland placed a number value on the wetland, and Ms. Pitzer stated that the resulting wetland would be of a higher value because of more diversity. The Examiner again wondered about the capacity to hold water, saying it might have to run off somewhere. DAVID BENSON, Sverdrup Corporation, P.O. Box 97062, Kirkland, WA 98083-9762, stated that when the contractor entered the wetland, wooden pads would be used as a driving surface all the way. Any water that dripped would be directed back into the wetland. Mr. Benson reviewed how the water would flow on the site, and said they would use a 6.5 foot depth of water in the lake. He felt that a lot would be learned from excavation of the test lake and the CSTC site. The site had been chosen because it was a high point, there was a ditch on the north side, and the west side went down to elevation 9. On the south and east side, there was an existing ditch system that went down to elevation 11. Elevation 14 was at the top of the excavation area and there would be elevation 1 at lake bottom. The contractor would be required to excavate in the water without de-watering to see how long it would take for things to clear up, how it settled out. From Boeing's standpoint, a successful project result would be to recognize the turbidity of the water. A lake as an amenity should not be brown and smelly, but should have good color and no scents that would be objectionable to have near an office complex. The excavated material would then be hauled across the race track on which steel plates had been placed. At the end of the block of work, the steel plates would be lifted and the track would be prepared for racing to commence. The timing of the work and reduction of stress on the tracks had been worked out with Emerald Racing. The only way to accomplish the excavation in a one month period was to do it on four weekends, 24 hours a day. The haul route would utilize existing asphalt within the site. At the storage site a silt fence would be placed around the perimeter, a 330 foot grass lined swale, and a 110 by 40 foot sediment trap had been constructed. By exceeding the requirements, the biofiltration would result in higher quality water. Regarding displacing flood plain storage, this would be one item that would tell whether the test lake was successful. A rain gauge had been set up on site and one year of data on the rainfall would be obtained by June 14th. An evaporative pan was also being set up. Information to be obtained would include the height of the water in the lake, the amount of rainfall, the amount that went out as evapotranspiration, and how water would flow. Water quality tests were being performed within the site and also at Springbrook Creek, resulting in about one year of data. The material storage site would be in an area where the elevations are above the 100 year flood plain which is at 16.4. If elevation 6.5 at the water surface on the lake can be maintained, there should be even more volume storage after the test lake construction than prior to it. The lake would be 14.4 elevation at the top and the flood plain storage elevation was 16.4. The Examiner asked about wetland vegetation and was it part of the study, or was it more the hydrology of the site. Mr. Benson said it was more the hydrology of the site. He stated that a four- to-one slope was being used for the test lake, which was what was planned for the final lake, and ground water existed there now up to elevation 10.28. If the lake elevation was held to 6.5, where this water seeps out of the ground and where the hydrology would support wetland plants could be Boeing Commercial Airrane Company SP-120-91 March 27, 1992 Page 5 determined, which might be as high as elevation 11.5 during the growing season. Mr. Benson said they were assuming that they could get wetland plants that have an 18" draw to elevation 13, which might be proven while the excavation was in operation or while the test lake was in operation. The Examiner asked whether water would be drained out of adjoining wetlands. Mr. Benson said he didn't believe so because there was the drainage channel just to the northwest of the site that was down at elevation 9 and the terrain was still supporting wetlands up at elevation 14. From the standpoint of water tables, according to the geotechnical engineers there are two different conditions. Down below -2 is a layer of fine sand that has artesian pressure on it. There are two wells adjacent to each other, directly north of this and just inside the track. One is into the lower aquifer and had water flowing out at elevation 14 during the major rains period. The other one was into the upper aquifer at elevation 11. Tests up to this point have provided some of the answers, and the test lake will provide more answers, but on a broader scale. According to the geotech, infiltration into a lake of this type could be up to a maximum of about 300 gallons per minute. Mr. Benson didn't believe that would occur because of the two ditches located northwest and southeast of the test lake. The Examiner asked whether, as the applicant withdrew the 11,000 cubic yards, testing for compaction would take place so that if the site had to be restored, no wetland sponginess would be lost. Mr. Benson agreed that all those conditions would be evaluated while the excavation process was taking place. RON STRAKA, Storm Water Utility, stated support for the test lake project as it was seen as an important part of the overall stormwater management plan for the CSTC. Infiltration rates must be determined, and the applicant had complied or would comply with the need for an erosion control plan, and there would be no impact to the flood plain. Results from the test probably would not be typical because of the dry year, but would give good information to develop the stormwater management plan so the applicant could be assured of aesthetic value and that it would function as designed. The Examiner asked whether this lake would be displacing the winter storm water, or was the study only to see if this would turn into a smelly swamp. Mr. Straka replied that in soil, water was only held in the voids between the particles and as far as the test lake was concerned, the solids would be removed so there would be more space for water. Existing topography at the test lake was at approximately elevation 14, existing ground. Water surface elevations would be between 6.5 - 8.5 so there was the distance between 8.5 and 14 where any of the natural storage that may be displaced by the water level being held in the test lake would be stored. The applicant would be managing the levels. The test lake would be located at a high point where there was no surface runoff entering the lake, and it would only be the water that falls out of the sky that would be entering the lake. The Examiner said he was trying to explore what this test lake would be proving as far as the overall project. Mr. Benson said the future project had a 3.3 acre lake and the applicant would be excavating a lot more material out of the site at that time, so the elevations would be lowered when this was accomplished. The final lake elevation should be 8.5, and most of that area now was at elevations 11, 12, and 14. There was also a small crescent-shaped excavation planned for the next bay over, between the two roads, which would lower that site from elevations of approximately 16 down to elevations of approximately 10. There was the third component of the system on the east, a stream corridor that was being excavated down to elevations 8 and 9 with an outfall at the existing location. A lot would be done to lower the entire site so there would be additional volume for storm storage. The Examiner called for further testimony regarding this project. There was no one else wishing to speak, and no further comments from staff. The Examiner asked for one additional week in which to consider the matter and there was no objection. The hearing closed at 10:00 a.m. Boeing Commercial Air*fne Company SP-120-91 March 27, 1992 Page 6 FINDINGS, CONCLUSIONS & DECISION: Having reviewed the record in this matter, the Examiner now makes and enters the following: FINDINGS: 1. The applicant, The Boeing Commercial Airplane Company, filed a request for approval of a Special Permit to excavate approximately 11,000 cubic yards of material from an approximately one acre site. 2. The yellow file containing the staff report, the State Environmental Policy Act (SEPA) documentation and other pertinent materials was entered into the record as Exhibit #1. 3. The Environmental Review Committee (ERC), the City's responsible official, issued a Declaration of Non-Significance (DNS) for the subject proposal. 4. The subject proposal was reviewed by all departments with an interest in the matter. 5. The subject site is located at the Longacres Racetrack, south of SW 16th Street, north of SW 19th Street (if extended) and west of Oakesdale Avenue SW (if extended). The site is actually in the northwest corner of the infield of the racetrack oval. 6. The site was annexed to the City with the adoption of Ordinance 1745 enacted in April, 1959. 7. The site was reclassified to B-1 (Business/Commercial) with the adoption of Ordinance 1884 enacted in May, 1961. 8. The Longacres site is approximately 51 acres. The site is generally level. The vicinity in which the excavation work will occur is developed with the racetrack, grandstands, barns and other facilities. 9. The applicant proposes excavating an area approximately .96 acres in size to create a test lake. The purpose of the test is to analyze the hydrology of the area and determine whether a larger, approximately 3.3 acre lake can be constructed on the subject site that provides storm water storage capacity, wetlands characteristics and positive aesthetic properties. 10. The elevation of the site varies from approximately 11.4 feet to 13.0 feet. The applicant proposes excavating a lake bed that has slopes varying from 4.5:1 to 4:1 to emulate the gently sloping bed of a shallow lake and wetland. The base elevation after the excavation would be 1 foot. The lake would ultimately be filled with water that will make it 6.5 feet deep. 11. Ground water is located at elevation 10.28 feet. A natural barrier occurs at about 0.00 (zero) feet and a water bearing layer occurs at approximately -1.0 (minus 1.0) foot with a positive artesian pressure. Breaching the barrier would result in an upwelling of water. The applicant proposes maintaining the separation. 12. As the materials are excavated from the site they will be dewatered and ground water will be returned to the excavation. The applicant will not dewater the site. The intention is to determine the natural amount of water contained in the soils. The pit will be permitted to stabilize with constant monitoring of water levels. Natural percolation or infiltration will be Boeing Commercial Airy ane Company • SP-120-91 March 27, 1992 Page 7 monitored. The test lake would then be filled as necessary to bring it to the proposed water depth of 6.5 feet. 13. The applicant estimates that infiltration rates as high was 300 gallons per minute are possible. Two drainage features, ditches actually, provide a form of control since they are lower than the surrounding terrain and infiltration does not occur that fast. They have also not dramatically altered the wetland characteristics of the property adjoining them. In other words, these ditches have not drawn off water at such a rate as to effectively dewater the existing wetlands. 14. Rain will be measured, as will evaporative processes. These figures will be compared against statistics from rain gauges at Sea-Tac Airport. 15. The applicant will then attempt to gage the success of the project based on the factors indicated above: hydrologic stability, wetlands characteristic, and aesthetic factors such as water clarity and odors. 16. The area of the proposed excavation is considered a wetland using City criteria, although the size of the operation removed it from federal review, as did the technical excavation of soils as opposed to filling the site. The wetlands have been disturbed in the past, are considered degraded and are classified as Class III. The Washington State Department of Ecology had reviewed the proposal and has supported the proposal if it effectively enhances the wetland environment. 17. The applicant proposes stockpiling the excavated materials on a portion of the applicant's property approximately a mile south of the test lake site. The stockpiled materials will be covered on a daily basis and hydroseeded on completion. 18. The site where the materials will be stockpiled will be protected by a silt fence, sedimentation trap and biofiltration Swale to protect the surrounding terrain. 19. The site where the stockpiling will occur is at elevation 16.4 feet which is above the elevation of the 100 year flood plain. Therefore, there will be no displacement of potential flood waters by the volume of the stored materials. 20. The Longacres site has been tested for ground contamination but this particular area did not received detailed review. An environmental specialist will be assigned to the site and will monitor the site as excavation occurs. Contaminated materials will be appropriately disposed of. 21. The applicant proposes an 18-month testing period. If the test is successful and the applicant has appropriate approvals, the approximately 1 acre test lake would be incorporated into a larger, approximately 3.3 acre lake. The extracted materials would be incorporated into on-site grading or removed from the site. If the test is unsuccessful for any of a number of reasons the site would be restored using the excavated materials. 22. Wetland review would occur prior to any restoration of the site if the tests are unsuccessful. An application for a special permit to refill the site would also be required. 23. The applicant proposes moving the materials using a paved road that is internal to the applicant's property, thereby avoiding interfering with traffic in the vicinity of the operation. In any event, the hauling will require an estimated 1,250 vehicle trips, if II-cubic-yard trucks are used in the operation. Boeing Commercial Airoe Company • SP-120-91 ' March 27, 1992 Page 8 24. The applicant will be working during the racing season to create the test lake. In order to avoid interfering with the use of the track during its Tuesday through Sunday schedule, the applicant proposes working continuously between the hours of 7:00 pm Sunday through 2:00 pm Tuesday. 25. The Ordinance normally limits hours to between 7:00 am and 8:00 pm, Monday through Saturday in residential areas. The Building Official may alter these hours under appropriate conditions. 26. Staff has estimated that only one residence is located within the vicinity of the subject site. CONCLUSIONS 1. Although this office is reluctant to establish a precedent that would permit excavation and grading or filling at all hours of the day in the absence of clear compelling reasons involving health or safety, the remainder of the request appears reasonable. The proposed excavation appears to serve the public use and interest. While the test may ultimately prove unsuccessful, it is only through the proposed testing that it can be determined if a true, healthy wetlands environment can be reestablished on the subject site. 2. While the current proposal is only for the creation of a test lake, if the test is successful the applicant proposes developing a more extensive lake, stream corridor and smaller ponds. All of these amenities would be compatible with the Comprehensive Plan's manufacturing park designation. These amenities would provide wetlands, wildlife habitat and valuable open space. They would afford the site a more park-like atmosphere, and provide an aesthetic and environmentally sound reason for spacing out the proposed buildings. 3. The replacement of the degraded wetland environment with a more suitable one containing open water and a greater diversity of wetland vegetation would also be a welcome change to the constant attempt to fill wetlands in this area. 4. The one acre site is relatively small and is contained entirely within the grounds of the track's infield. The stockpile will be kept out of the way and handled to prevent erosion or sedimentation. The hauling of materials will occur on private roadways, although the trucks will be traveling to the site. The approximately 1,200 trips should not unduly interfere with traffic or transportation in this area of the valley. Since the applicant does propose hauling on a continuous basis, there could be potential to interfere with peak-hour travel. To assure that does not occur, staff shall have the right to further restrict the hours of operation and limit the hours trucks may enter or leave the site. 5. While it does not appear that nearby residences would be unduly annoyed by late hour work on the subject site, noise could carry during the late night hours to some of the higher terrain around the site. Therefore, if complaints are generated that sleep is being interfered with, staff shall retain the right to restrict the hours of operation or limit the nature of work which may occur that causes disturbances. 6. The grassy, landscaped infield provides a form of built-in landscaping. Screening of what is to be an amenity would obscure the purpose. 7. Since the site is part of a wetland environment, although a partly degraded one, caution will be necessary to avoid compacting soils of the adjacent areas or damaging existing vegetation. The Boeing Commercial Aii'!lane Company • SP-120-91 March 27, 1992 Page 9 applicant shall be required to work in as narrow an area as practical and limit access to the site in such fashion as to disturb other areas as little as possible. 8. It appears that neither the proposed excavation or its complementary stockpiling will adversely affect potential flood water storage. The base elevation of the stockpiling area is located above the 100 year flood elevation. Materials will be removed from the excavated area thereby creating additional volume capacity, although studies conducted during the 18 month period will further refine this information. The tests should reveal whether the creation of this lake and the potentially larger one will adversely or positively affect the hydrology of the site. 9. The eighteen-month time period also seems reasonable to carry out the observations, although the success of wetland plantings usually requires more extended time periods. The installation of wetland specimens shall be subject to review and approval of the City. 10. In conclusion, the proposal appears to provide reasonable safeguards while the City, state agencies, and the applicant conduct this test and review the results. DECISION The special permit to excavate, grade the test lake, and stockpile the excavated materials is approved subject to the following conditions: 1. The applicant shall comply with the conditions imposed by the ERC. 2. The installation of wetland specimens shall be subject to review and approval of the City. 3. Staff shall have the right to restrict the hours of operation and limit the hours trucks may enter or leave the site. Complaints about night operations shall be handled appropriately and the night-time operations shall be curtailed if they interfere with the sleep requirements of residents. 4. The applicant shall be required to work in as narrow an area as practical and limit access to the site in such fashion as to disturb or compact other areas as little as possible. 5. An environmental specialist shall be assigned to the site and will monitor the site as excavation occurs. Contaminated materials will be appropriately disposed of. 6. Wetland review shall occur prior to any attempt at restoration of the site if the tests are deemed unsuccessful. 7. An application for a special permit shall be required for any further work on the subject site, including any request to refill the site. 8. The applicant shall notify in writing owners of properties within 300 feet of the site boundaries, providing the following information: a) the schedule of construction operations; b) verification of compliance with the Renton Noise Ordinance; and c) the name and telephone number of a designated City representative AND a corporate representative to whom affected parties may direct inquiries/complaints concerning the Boeing Commercial Airoe Company SP-120-91 March 27, 1992 Page 10 construction schedule. Notices shall be distributed prior to the beginning of the construction period and copies shall be made available to the City. ORDERED THIS 27th day of March, 1992. 'Ta �V�� FRED J. K4 JFMAN HEARING E AMINER TRANSMITTED THIS 27th day of March, 1992 to the parties of record: Lenora Blauman Senior Planner Ron Straka Storm Water Utility Lori Pitzer The Boeing Company P.O. Box 3707 MS/6Y-50 Seattle, WA 98124 David Benson Sverdrup Corporation P.O. Box 97062 Kirkland, WA 98083-9762 William Green Perkins Coie 1201 3rd AVE, 40th Floor Seattle, WA 98101 Don Miles Miles Consulting Bldg #2 #211 300 - 120th AVE NE Bellevue, WA 98005 Colleen Cole-Bowron 601 Cedar AVE S Renton, WA 98055 Kim O'Keefe Andover Co. 415 Baker BLVD Tukwila, WA 98188 Boeing Commercial Ai9ane Company SP-120-91 March 27, 1992 Page 11 Jay Laughlin Seattle Water Department Rm 1155 Dexter Horton BLDG 710 2nd AVE Seattle, WA 98104 Bill Arthur Segale Business Park P.O. Box 88050 Tukwila, WA 98138 Stuart McLeod McLeod Development 213 Lake St S Kirkland, WA 98033 TRANSMITTED THIS 27th day of March, 1992 to the following: Mayor Earl Clymer Councilman Richard M. Stredicke Don Erickson, Zoning Administrator Lynn A. Guttmann, Administrator Members, Renton Planning Commission Jim Hanson, Development Services Manager Gary Gotti, Fire Marshal Ronald Nelson, Building Director Lawrence J. Warren, City Attorney Jay Covington, Mayor's Executive Assistant Transportation Systems Division Valley Daily News Utilities System Division Pursuant to Title IV, Chapter 8, Section 15 of the City's Code, request for reconsideration must be filed in writing on or before 5:00 P.M. April 10, 1992. Any aggrieved person feeling that the decision of the Examiner is ambiguous or based on erroneous procedure, errors of law or fact, error in judgment, or the discovery of new evidence which could not be reasonably available at the prior hearing may make a written request for a review by the Examiner within fourteen (14) days from the date of the Examiner's decision. This request shall set forth the specific ambiguities or errors discovered by such appellant, and the Examiner may, after review of the record, take further action as he deems proper. An appeal to the City Council is governed by Title IV, Chapter 8, Section 16, which requires that such appeal be filed with the City Clerk, accompanying a filing fee of $75.00 and meeting other specified requirements. Copies of this ordinance are available for inspection or purchase in the Finance Department, first floor of City Hall. The Appearance of Fairness Doctrine provides that no ex parte (private one-on-one) communications may occur concerning pending land use decisions. This means that parties to a land use decision may not communicate in private with any decision-maker concerning the proposal. Decision-makers in the land use process include both the Hearing Examiner and members of the City Council. All communications concerning the proposal must be made in public. This public communication permits all interested parties to know the contents of the communication and would allow them to openly rebut the evidence. Any violation of this doctrine would result in the invalidation of the request by the Court. Boeing Commercial Airoe Company • SP-120-91 March 27, 1992 Page 12 The Doctrine applies not only to the initial public hearing but to all Requests for Reconsideration as well as Appeals to the City Council. 1 -f f _? ��. -�\� I : P I t"�- -� l.�-'�N�.1 1� tl. 1 //"- ,Ir trmsr sa D _. `Q• /y/�/�'�'/ y 11 I I l I SI( n I � � �. _ �, (/� '`�\ ;/wrn �Yi I -�/ I �!^„ %y;7 � �•/ i• �� \`,i /^`..- \� 7\ �;p\ �p` --I C, �: ty/� I � ':. "•� '9i/ � V\). ":i t n�l,rr.nsvr I� jp ` d � Ia I ,a•� - t-1 o- li'�. ,a<,_ � _ ,rnN r.u" rri i` 1 Illlnll I�' II;_ . I ih I I NN I r I_r t[ II _LIJuI b6 �` „pZry� I' _ I I it I '�l A s f i ACKI d i LONGACRwS. RA%Ct : �/ gg Iolri�ll�' r i N l I N O U S T R ;I A L r P A R ARLI GTON INDU STRIALI•• IZ 4 �-N �". • r LLL y �,a � wll �� \ < ol i . R E N T 0 N II / II �'q I� `/ I r.;rl s}�'\O �� t E •; }I�i I`-I 1\ NOT ON INDU LO SI RIAL PARK Y W �fl _t II z —j— N 0 0 r IRON PIPE k,AP • uann EXISTINC PROPERTY r [ w A9L _ co,"', 1 per Q 7 N 72 951..39 I _ I _ . / 52.J82.631I Y -� IRON PIPE k CAP ~�•. - SWi6tn STREET EXISTING PROPERTY CORNER r.u[Rn Ira --, �Y N 72 915.129 I --- --_ -- 32.339.955 2 1 L IRON PIPE N CAP riERANOS MEA EXISTING PR ERTY' - ].3]7 AOKS CORNER AAL I.aTl u RA C is ou.o no«Al WcnANo H 2 89.<� I � 7<a.eruc ' IRON PIPE tr CAP 1aivi:aciA . eRO EXI�LNf[. PERTY VUSTIND 5,702 -_ TEST LAKE 81 E I rAY[Re M iNe LLa I _546 TXMPOAAT M T]150 '1 I CONSTRUCTIONA E S],O]0 ACCC33 ROAD F%IBTINO]"I YARD NYDRANf 1^, _ 1 LTEMFORARY W�LR'LINF. 1 v 0 w i J ! �� I i .[T�:al I , I I , 138tn STREET 5. > i I luau T. I I I YK>v4'AACA rci I .A AnfA I cvEs �DDa. — I I rE 80 Aa ARu I a.eeo Aacs ! I � I i �AAL.an R•F[,.roN I wwoA rerun j i"� 2 — ----- -�29 1 1 I I 1 32 33 134 I ROCK ENTRANCE FAO MATERIALS DISPOSAL LONE LBATS I 5W 2711 STREET FILTER FABRIC FENCE 1 - 10 A,IINIMU. 3 r A FRO..180' I 110'MINiuUM r3IAPIRO%. a.' LTEA FABRIC F NCEnI 5'WOE Or_RFLOW SPILLWA i ;�..ISEDIMENT 3 1,1�3M.� - �l l l 7 I CONTROL TJ P- 38 I . i WATER QUALM' r� SWALE APPRO%..aO, 0.71. I A __ a ;I oD 43 4 ' S,91 le ..1�1`I n I oI91 I to A ° iz 10 $ �I�! a5 ' lil Z o rTg CITY OF, RENTON>. HEARING EXAMINER PUBLIC HEARING AGENDA COMMENCING AT 9:00 AM, MARCH 24, 1992 COUNCIL CHAMBERS,;SECOND FLOOR, RENTON MUNICIPAL BUILDING The>,application(s) listed are in order of application number only and not necessarily the order in : which they will be heard. Items will be called for!hearin'g at the discretion of the Hearing Examiner, PROJECT NAME: BOEING STORMWATER MANAGEMENT TEST LAKE PROJECT NUMBERS: ECF;SP-120-91 PROJECT DESCRIPTION: The Applicant is seeking a permit to create an approximately .96 acre lake on the future Boeing Customer Service Training Center site. This lake is to be constructed to test the viability of providing a full-size lake (to serve as a segment of the storm drainage management system, and as a water amenity) at the time of development of the Boeing Commercial [7 Airplane Training Center. The project is located south of S.W 16th Street; north of S.W. 19th Street (if extended); west of Oakesdale Avenue (if extended). he gnda PRE JMINARY REPORT TO THE HEOG EXAMINER BOEING COACIAL AIRPLANE CSTC-TEST LAKE • MARCH 24, 1992 Page 1 DEPARTMENT OF PLANNING/BUILDING/PUBLIC WORKS PRELIMINARY REPORT TO THE HEARING EXAMINER PUBLIC HEARING APPLICANT: The Boeing Commercial Airplane Company PROJECT NAME: Customer Service Training Center - Storm Water Management Test Lake APPLICATION NO(S): ECF;SP-120-91 LOCATION: South of S.W. 16th Street; north of S.W. 19th Street (if extended); west of Oakesdale Avenue (if extended). A. SUMMARY AND PURPOSE OF REQUEST: The applicant is seeking a special permit to create an approximately .96 acre lake to test the viability of providing a full-size lake (to serve as a segment of the storm drainage management system, and as a water amenity) at the time of development of the Boeing Commercial Airplane Training Center B. GEN'ERAL INFORMATION: 1. Owner of Record: The Boeing Company 2. Applicant: The Boeing Company 3. Existing Zoning: Commercial Use 4. Existing Zoning in the Area: Commercial, Manufacturing Park 5. Comprehensive Land Use Plan: Commercial 6. Size of Property: Total CSTC site is approximately 51 acres; test lake site is approximately 1.00 acre. 7. Access: S.W. 16th Street and Oakesdale Avenue (Renton) and S. 158th (Tukwila) serve the Longacres site. 8. Land Use: Longacres Park Race Track; future site of the Boeing Commercial Airplane CSTC PRELIMINARY REPORT TO THE HE* EXAMINER BOEING COM&AL AIRPLANE CSTC-TEST 4KE a MARCH 24, 1992 Page 2 9. Neighborhood Characteristics: North: Vacant lots, single-family homes. East: Office complex, racetrack facilities; South: Race track facilities; vacant land. West: Race track facilities; vacant land. C. HISTORICAL/BACKGROUND: Action File Ordinance Date Initial Annexation NA 1745 4-14-59 Rezone to B-1 NA 1884 5-2-61 D. PUBLIC SERVICES: 1. Utilities a. Water: A 12 inch watermain is located along S.W. 16th Street and a 12 inch watermain runs south within a City utility easement along the east portion of the Longacres site. A 10 inch watermain in an easement runs south along the west side of the project site. This line interties with a Seattle Water Department main. An 8 inch main extends south several hundred feet into the site from a 12 inch main in S.W. 16th Street. Water may be introduced into the test lake from existing water lines (Renton Water Utilities and Seattle Water Utilities). b. Sewer: Sanitary sewer services are available in the vicinity of the site, but such services are not necessary to support the lake. Excavation and testing activities should not affect the METRO lines within and in the vicinity of the site. C. Storm Water Drainage: Storm water management within the site is achieved both by natural run-off activities and introduced improvements, such as on-site outfall pipes. 2. Fire Protection: Provided by the City of Renton as per ordinance requirements. 3. Transit: Not applicable 4. Schools: Not applicable 5. Recreation: Not applicable E. APPLICABLE SECTIONS OF THE ZONING CODE: 1. Section 4-31-10, Commercial District. 2. Section 4-31-27, Mining, Excavation and Grading Ordinance. PRPLIMINARY REPORT TO THE HEAQG EXAMINER BOEING COMOCIAL AIRPLANE CSTC-TEST LAKE MARCH 24, 1992 Page 3 F. APPLICABLE SECTIONS OF THE COMPREHENSIVE PLAN OR OTHER OFFICIAL CITY DOCUMENT: 1. Green River Valley Plan, City of Renton Comprehensive Plan Compendium, 1986 (pgs. 31- 50). 2. City of Renton Comprehensive Plan Compendium, 1986 Environmental Elements, (pgs. 8- 11). 3. Land Clearing and Tree Cutting Ordinance, Section 4-9, City of Renton Code. G. DEPARTMENT ANALYSIS: 1. The Applicant is seeking a special permit to create a test lake (approximately.96 acre/11,000 cubic yard) on 2.1 acre portion of the future Boeing Customer Service Training Center (CSTC) site (56 acres). This lake is to be constructed to serve as a storm drainage management system; it will be designed and engineered to serve as an improved wetland, and as a water amenity, as well. The test lake site is identified as a Class III (degraded) wetland under the 1989 Wetlands Delineation Standards Manual, utilized by the City of Renton. The site is not described as a wetland under the 1987 Manual (which is utilized by the U.S. Corps of Engineers). A separate application is being made for the test lake (rather than including this feature as a part of the CSTC Complex environmental and land use review) because it is preferred that the applicant determine whether the lake would work effectively as a part of the storm drainage management system prior to developing a plan to provide a permanent lake. Boeing will monitor the test lake on a regular basis to assess its viability. If the test lake is successful, Boeing will provide a full-size lake at the time of development of the Boeing Commercial Airplane Training Center. In the event that the lake is expanded to serve as a permanent storm water facility, the material excavated to construct the lake, which is to be stockpiled on the property, will be used as fill elsewhere on the site (in conjunction with the future CSTC development when it is approved) or transported to an approved off-site facility. In the event that the test lake is determined to be unsuccessful, Boeing will make an application to remediate the lake area; soil excavated for the test lake will be tested to ensure that it is clean prior to stockpiling. The proposed test lake is considered to be compatible with site characteristics and vicinity land uses. ►t addresses Comprehensive Plan Environmental Elements, including those calling for protection of open space (I.C.) and preservation of wildlife habitats (I.D.). The proposed action is also consistent with the underlying Land Use Map designation (Commercial Use). The proposed improvement also has received the support of the Department of Ecology. DOE staff report that the lake would be allowed in the existing wetland, as it is intended to be designed and to function as a wetland system (i.e. depth, size, vegetation) and as the existing wetland is severely degraded. The wetlands which are to be converted into the test lake are not associated with the adjacent Springbrook Creek. 2. Pursuant to the City of Renton's Environmental Ordinance and SEPA (RCW 43.21[C], 1971, as amended), the Environmental Review Committee issued a Determination of Non-Significance - PRELIMINARY REPORT TO THE HEA&EXAMINER BOEING COM&AL AIRPLANE CSTC-TEST LAKE MARCH 24, 1992 Page 4 Mitigated on January 27, 1992 (amended February 17, 1992) with conditions established to address identified environmental impacts (see Mitigation Measures -attached). All plans required by the Environmental Review Committee to be provided in advance of public hearing for this special permit, have been submitted to the satisfaction of the Development Services Section. All agreements have been submitted to the City Attorney for review; it is anticipated that final documents will be in place prior to public hearing. 3. Representatives of the various City departments have reviewed the application materials to identify and address land use impacts anticipated from the proposed developments. Comments have been attached and the content has been integrated into the text of this report. 4. SPECIAL PERMIT: The applicant is seeking a Special Permit pursuant to the Mining, Excavation and Grading Ordinance (4-10) to allow excavation for the above-described test lake. Under Section 4-31-27 of the Zoning Ordinance and the Mining, Excavation and Grading Ordinance 4-10-3 (13)(2), a series of basic criteria is established to be used by the Hearing Examiner to determine whether the proposed excavating operations are compatible with existing/planned future land uses. (In addition to achieving compatibility with these below-listed criteria, the applicant will be required to comply with all provisions of the underlying Mining, Excavation and Grading Ordinance and with conditions established by the Environmental Review Committee). The applicable criteria are: a. Size and Location of the Activity The test lake is proposed to be located on the southwest portion of the CSTC site, in the vicinity of the Longacres Racetrack infield. Approximately 11,000 cubic yards of soil has been proposed to be removed from the .96 acre development site. Stabilization of surrounding upland areas may be provided as necessary to support the lake. The affected property is vacant and the terrain throughout is essentially flat, vegetated wetland and upland area (primarily introduced ground cover). Existing soils are silty sand and gravel. Studies indicate that the site has been filled previously; the existing fill is free of hazardous materials. The site is located in the 100 year floodplain (FEMA). Construction and operation of the test lake has been proposed (and/or will be recommended by staff) to occur in a manner which generally addresses potential land use impacts and life safety impacts to race track personnel and visitors. b. Traffic Volumes and Patterns In conjunction with proposed excavation and stockpiling activities, an estimated 1250 truck trips will occur, assuming use of truck/trailers capable of hauling a maximum of 11 cubic yards of material. Excavated material is to be stockpiled on the Longacres Race Track site (south of the CSTC site). PREP IMINARY REPORT TO THE HE*EXAMINER BOEING COMACIAL AIRPLANE CSTC-TEST LAKE MARCH 24, 1992 Page 5 Transportation impacts (e.g., traffic volumes, haul routes) related to these site preparation activities can be expected to be minimal, as no hauling off-site is anticipated. Specific approval for travel routes for haul trucks to enter/depart from the site and hours for hauling of excavated materials within the site will be developed at the time of issuance of construction permits, consistent with the mitigation measures established in the ERC Mitigation Measures. C. Screening, Landscaping, Fencing and Setbacks Based on the limited size of the excavation operation, the extensive set back from neighboring properties and the scheduling of site preparation at a time when no human activity is slated to occur, screening is not recommended for the construction period. Because the lake is intended to serve as a functioning wetland and visual amenity as well, no screening is being recommended for the operating lake. Staff will recommend that information be provided to owners/users of the site (via written reports and signage) advising of the need to exercise caution in the construction/operation area for the lake. The applicant has stated an intent to cover stockpiled soil with tarps during the stockpiling activities; at the completion of stockpiling, the soil will be hydroseeded. If hydroseeding cannot be immediately accomplished due to seasonal limitations on germination, then the tarps (secured with sandbags) will remain in place until hydroseeding can be accomplished. d. Unsightliness, Noise and Dirt The proposed site preparation activities may result in an unsightly environment, and are likely to create dust and dirt, and noise. These impacts are considered by staff to have been addressed, in part, in conditions established by the Environmental Review Committee for management of excavation activities (e.g., monitoring by certified soils engineers, erosion control systems, drainage control, site clean-up requirements, and street cleaning requirements). The applicant has submitted an amended proposal for the scheduling of construction of the lake. Permission is requested to construct continuously from Sunday at 7:00 p.m. to Tuesday at 2:00 p.m. each week for a four week period. These revisions are intended to ensure that the lake can be developed and testing can be underway prior to the end of the wet season, and, also, that excavation/stockpiling activities do not conflict with racetrack activities. Staff would support this schedule with the recommendation that surrounding property owners be notified of the hours of construction operation. Also, compliance with Mining, Excavation and Grading Ordinance requirements and Noise Ordinance requirements, should serve to mitigate construction impacts and address life safety impacts. e. Surface Water The site is located in the Renton Industrial Drainage Basin (in an area which is in the FEMA 100 year floodplain). Conceptual and specific excavation plans for the lake submitted by PRELIMINARY REPORT TO THE HEAW EXAMINER BOEING COM IAL AIRPLANE CSTC-TEST LAKE MARCH 24, 1992 Page 6 the applicant, together with mitigation measures established by ERC, and compliance with Code requirements (e.g. Mining, Excavation and Grading Ordinance, Surface and Storm Water Management Ordinance) should serve to ensure that site preparation activities do not negatively impact the Drainage Basin. f. The Length of Time the Application of an Existing Operation has to Comply with Non- Safety Provisions of this Ordinance. Not applicable. g. Reuse of the Site Under a separate, concurrent submittal, the applicant is proposing a future conversion of the test lake into a permanent 3.3 acre lake (assuming that the test lake is successful) to serve the planned Training Center. The Special Permit is intended to allow testing and monitoring of the lake storm water management system, so that plans for a permanent system can be created prior to the development of the Training Center. In the event that the test lake does not serve effectively as a storm water management tool, the lake would be removed, and excavated soil reintroduced, as required by the Environmental Review Committee (see G.2 - Mitigation Measures document attached). Alternative, more traditional storm water management systems can then be provided to serve future development. h. Protection of the Public Trust The subject proposal, as modified by the mitigating measures established by the Environmental Review Committee (G.2) and with conditions established in conjunction with special permit review (Section H), is not anticipated to result in a burden on public services. Similarly, the above-described mitigation measures/conditions for site preparation and subsequent construction (or hydroseeding) should ensure that the permitted site preparation activities do not harm the persons or property, and, therefore, would not be detrimental to the public interest. H. DEPARTMENTAL RECOMMENDATIONS: Staff recommend that the Hearing Examiner approve the application by The Boeing Commercial Airplane Company (File No.: 120-91) for a special permit, subject to the following conditions: 1. The applicant shall comply with all conditions required by the Environmental Review Committee in conjunction with the Determination of Non-Significance, Mitigated, issued on January 27, 1992 and amended February 17, 1992 (See Mitigation Measures). 2. The applicant shall provide written notification to owners of properties within 300 feet of the site boundaries, including the following information: a) the schedule of construction operations; b) verification of compliance with the Renton Noise Ordinance; and c) the name and telephone number of a designated City representative AND a corporate representative to whom affected parties may direct inquiries/complaints concerning the PRELIMINARY REPORT TO THE HEOG EXAMINER BOEING CONICIAL AIRPLANE CSTC-TEST LAKE MARCH 24, 1992 Page 7 construction schedule. Notices shall be distributed prior to the beginning of the construction period and copies shall be made available to the City. 3. The applicant shall provide "no trespassing/danger" signage at the test lake site, along the on-site haul route and at the stockpile site, advising visitors of the need to remain out of these areas during the construction and/or operations. Signage shall remain in place for the duration of the project. NOTE #1 The applicant shall be required to comply with all applicable provisions of the City Code for site preparation and operations activities. Particular attention is directed to the following regulations: Mining, Excavation and Grading Ordinance, the Noise Ordinance, the Land Clearing and Tree Cutting Ordinance and the Surface and Storm Water Management Ordinance. NOTE #2 The applicant is seeking an administrative Routine Vegetation Management Permit in order to complete site preparation and development activities above-described in this report. Application materials indicate that the proposed vegetation management plan generally complies with regulations and performance standards established in the Land Clearing and Tree Cutting Ordinance. Under the Ordinance no vegetation may be removed until the Special Permit is approved and a Routine Vegetation Management Permit is issued. ■ ® :11:� HU NRM ■nl.•.•.•.•.•.•.•.•.'. all■ t■■■/ Notion. ---- 11-� ME �WfZ _ � �1�pg,�gl+_:::i�:::.:..••Igo' �ii::::li��� r� / ' �� ' �� wp�88t r::i::•� it i::::iii■X07 77,�y�y .■■■■■■■■.. JY■r. ■1 �,,- to .!ry ,����:::�■::::::::: ■tl. ■11:::1�. ■tom�► -- f � • 600n•■.■e)Of.•;uuuua.■u■e:ur r .ry..o■.os....•,.•uuuua, ■uu■ \\t uououuou■ .10 uuuua.euuon�� �� �■• i"" '. l91A �- n..u:•■a■um"!%° of .i•� i : ::: IT:::::::y .f• .. OO■■■1.1/■■n■1•.•..O■o•1Y■ ■■■■■.ot 000000l.•.•,■Sion■■■ soon .. a■■uu moo IRENE ......■■ton.■.■■./■ 9 �.':.':.'.'.'.'.'.'.': .•psi :::::::IN.:::::�� Most ■u/■uuuv- 01AS W. m :::■avr.r �. �•iu L�u■u`fvo■u f . uu■.000■■a.o■ ■ ,ii I::i::::::::::::ui `• Y �1 "ice. uuu■uu■: n■uuu■unuuu. � NUCHUNUM p ■�u■�uu � utwo.uui■■uu. up■■ m■o4s..•■"No, {ffS4•YfL`fii71lF! ■■..■■■ Ill!■■■n:.....■...■r :.. ■■■■■1■■i I.I'v- , !'!•ate NEENSWINEENINN. •paeui: I.u/.uuuu■■r � .•r �mnu uouuuuuur uv uouuu■uu=( uut■o■■uou■uu0000■ .Ytr■r...r•.t... mououuuUh / .�uuuouu■ � l� t f .■ ■.■■■■11■■11. oil■■■ ■�■soon uu..n.. ■: ■ son C.I i i• •%/ C i. e I.■■uu■■■.■1 uuuuor.m r . OfficeLAND USE ELEMENT Single Family Commercial Low Densi \ILA Multi-Family 4 Medium11 •High Density _ LightRecreation Heavy Industrial �► 1 Greenbelt Manufactur • Multiple • •• •• .. VALLEIF s FS/VALLfY ROAD— (sip LB/) IZ R/ i W -MIL WAUKEE ]T PAUL' 4 YACIr�c C �- � � / � i - CJ TY O F TU K ILA --------------- m i m i 7 I �'l C".��r i•JtC IZ I I<Cv.50x I I i I p i I P --- -t --p-I F I IONGACRES RACE:y TRACK I M1G✓IEx �I�rI� I I I m .Z �i W I 1 ID �� II , — - - n I 0 � , �I P ,I CIIANNELi� Y , 1 I 4 I P 01 P Aw ---- W ;II I ' 4VC y �\ \ \ \•.�\ - ___-_-____ -_-� I lam.l�'(I.r.l l l�:_ _ yl I �� ) ' ol II 70 A r� ly -• --TT—__— � i - -SAY MONK S I Try CITY OF RENTON • DETERMINATION OF NON-SIGNIFICANCE (MITIGATED) APPLICATION NO(S): ECF;SP-120-91 PROPONENT: The Boeing Company PROJECT NAME: Boeing Storm Water Management Test Lake DESCRIPTION OF PROPOSAL: The Applicant is seeking a permit to create an approximately .96 acre lake on the future Boeing Customer Service Training Center site. This lake is to be constructed to test the viability of providing a full-size lake (as a segment of the storm drainage management system, and as a water amenity) at the time of development of Training Center. LOCATION OF PROPOSAL: South of SW 16th Street; north of SW 19th Street (if extended); west of Oakesdale Avenue (if extended) LEAD AGENCY: City of Renton Department of Planning/Building/Public Works Development Planning Section The City of Renton Environmental Review Committee has determined that it does not have a probable significant adverse impact on the environment. An environmental impact statement (EIS) is not required under RCW 43.21C.030(2)(c). Conditions were imposed as mitigation measures by the Environmental Review Committee under their authority of Section 4-6-6 Renton Municipal Code (see attached sheet). These conditions are necessary to mitigate environmental impacts identified during the environmental review process. This Determination of Non-Significance - Mitigated (DNS-M) is issued under WAC 197-11-340(2). Because mitigation measures have been imposed, the lead agency will not act on this proposal for fifteen (15) days from January 27, 1992. Any interested party may submit written comments which must be submitted by 5:00 p.m., February 11, 1992, in order to be considered. A fourteen (14) day appeal period will commence following the finalization of the DNS-M. Responsible Official: Environmental Review Committee c/o Don Erickson, Secretary Development Planning Section Department of Planning/Building/Public Works 200 Mill Avenue South Renton, WA 98055 PUBLICATION DATE: January 27, 1992 DATE OF DECISION: January 23, 1992 SIGNATURES: ynn uttmann, ministrator Department of Planning/Building/Public Works �__ C� / __ L 3 — i� z--- Joh Webley, ministrator DATE Co unity Service Department iLed e r, ire ie Rent ire Department mitsig DETERMINATION OF NON-SIGNIFICANCE-MITIGATED REVISED MITIGATION MEASURES PROJECT: Boeing Storm Water Management Test Lake PROPONENT: The Boeing Company APPLICATION NUMBER: ECF;SP-120-91 DESCRIPTION OF PROPOSAL: The Applicant is seeking a permit to create an approximately .96 acre lake on the future Boeing Customer Service Training Center site. This lake is to be constructed to test the viability of providing a full-size lake (to serve as a segment of the storm drainage management system, and as a water amenity) at the time of development of the Boeing Commercial Airplane Training Center. LOCATION OF PROPOSAL: South of S.W 16th Street; north of S.W. 19th Street (if extended); west of Oakesdale Avenue (if extended) CONDITIONS: The Environmental Review Committee issued a Determination of Non-Significance - Mitigated with the following conditions: 1. The applicant shall, in order to mitigate impacts to the earth, water, and natural environment, provide: i) an agreement to ensure that the test lake will operate for a maximum period of eighteen (18) months following completion of its installation and that the lake will be remediated (pending City approval) immediately upon the termination of the 18 month test lake activity period; ii) a conceptual plan for dewatering/restoration of the test lake area at the end of the 18 month test period; this restoration plan shall include a component for using excavated material which will be stored in a protected environment on the site; and iii) an agreement to submit an application for a specific remediation plan immediately upon making a determination that test lake operations will cease (at a point no later than 18 months following installation); and iv) an agreement to ensure that the operation of the test lake will be coordinated with the operation of any/all other storm drainage systems for the Training Center. Agreements must be approved by the City Attorney prior to public hearing for the development of the test lake, and duly recorded prior to the issuance of the first site preparation permit. The conceptual plan shall be provided to the Development Services Division a minimum of two weeks in advance of public hearing. Note 1.a.: In the event that an 18 month test period is deemed insufficient to test the adequacy of the storm drainage management system, the applicant may apply to the City for an extension of the test lake permit of a maximum six months duration. Note 1.b.: The applicant will be required to work with staff to develop plans for restoration design (e.g., removal of introduced water; limits on dewatering) and remediation schedule to minimize impacts to the integrity of existing wetlands. Note 1.c.: In the event that the test lake is identified as a wetland by the U.S. Army Corps at the time restoration is proposed, the applicant will need to obtain all necessary permits from the U.S. Army Corps prior to undertaking filling/restoration activities. In the event that a Corps permit is necessary to restore the site and that no such permit is authorized, the City will work with the applicant to develop an acceptable plan for dewatering the lake and providing actions necessary to improve the test lake area so that wetland ecology is preserved/enhanced. Note 1.d: Filling is to be achieved according to requirements established in the City's Mining, Excavation and Grading Ordinance. 2. The applicant shall, in order to mitigate impacts to the earth, water and the natural environment, provide specific engineering, testing, monitoring and management plans for the test lake, in accord with the King County Surface Water Control Design Manual, to determine the continuing integrity of the lake and to assess the effectiveness of the storm water management system. mitmeas - 1 Results testing/monitoring activities are to be reported at monthly intervals to the Development Services Division for review by Planning and Storm Water Engineering staff. Plans for management, testing, monitoring and reporting shall be submitted to the Development Services Division a minimum of two weeks prior to public hearing, and shall be approved by staff prior to that hearing. Approved plans shall be in full force and effect for the duration of test lake installation and operation. Note 2.a: The applicant may complete the initial filling of the test lake using water provided from the City of Seattle. Water for all construction activities and subsequent watering activities in the lake must be accomplished using water from the City of Renton pipeline. 3. The applicant shall, in order to mitigate impacts to the earth, water, and natural environment, provide a plan for preparation/installation of the test lake site, including the following components: i) approved design elements (e.g., sediment trap, water quality swales) for development and installation of lake facilities; ii) an element for supervision of excavation/construction activities by a certified soils engineer; iii) an element for scheduling clearing, excavation, and grading activities in a manner which complies with City regulations and which does not conflict with race track activities; iv) an element for stabilization of surfaces exposed by excavation activities; v) an element for erosion control systems such as sedimentation facilities and perimeter runoff control devices; vi) an element for cleaning and removal programs for silt/debris on the site; vii) an element for wheel-washing of construction vehicles which will travel upon public roadways before their departure from the site; and viii) a $2,000.00 cash deposit for street cleaning. These plans shall be submitted to the Development Services Division a minimum of two weeks prior to public hearing, and shall be approved by staff prior to that hearing. All elements of the plan are to be in full force and effect during site preparation, and (as appropriate) throughout the operation of the test lake. Note 3.a: Excavation is to be achieved according to requirements established in the Mining, Excavation and Grading Ordinance. Note 3.b: In the event that U.S. Army Corps permits are required for excavation of the test lake, the applicant will need to obtain those permits from the U.S. Army Corps prior to undertaking excavation activities. 4. The applicant shall, in order to mitigate impacts to the earth, water, and natural environment, provide a plan for testing of soils for contamination at the time of soils excavation and prior to stockpiling. In the event that contaminated soil is located, the applicant shall cease work immediately and file a report with the City Development Services Division within twenty-four (24) hours. Contaminated soils will need to be remediated on site or transported in a permitted manner to an approved disposal site. Authorizations from the Department of Ecology and from the City of Renton will be required for excavation, treatment and/or removal of contaminated soil. 5. The applicant shall, in order to mitigate impacts to the earth, water, and natural environment, provide a specific plan for stockpiling clean excavated soils, including the following elements: i) a suitable upland location to be designated for soil stockpile/storage; ii) a plan for stabilization of the exposed surface; iii) a plan for cleaning/removal programs for silt and debris; iv) an installation schedule for stockpiling which addresses potential inclement weather conditions and which does not interfere with race track activities; v) a component which describes planned erosion control systems such as sedimentation facilities, hydroseeding, screening and perimeter runoff control devices; vi) a component for scheduling installation of erosion control systems (including hydroseeding) which addresses potential inclement weather conditions and does not interfere with raceway activities; and vii) a plan for periodic monitoring and maintenance of the stockpile and the related erosion control systems to ensure the continuing integrity of these areas. These plans shall be submitted to the Development Services Division a minimum of two weeks prior to public hearing, and shall be approved by staff prior to that hearing. All erosion control systems related to construction (e.g., sedimentation facilities) shall be installed prior to the advent of stockpiling and shall be maintained in full force and effect for the duration of the existence of the stockpile; hydroseeding shall be installed immediately following the completion of stockpiling. Periodic monitoring and restoration of erosion control systems/hydroseeding shall be in full force and effect for the duration of the existence of the stockpile. 6. The applicant shall, in order to address potential impacts to the natural environment from proposed disturbances to Wetland Z for the creation of a test lake, provide a specific improvement plan (e.g. engineering plans, narrative) to develop and maintain the lake as a wetland ecosystem. The plans shall be submitted to the City a minimum of two weeks prior to public hearing and approved by the Development Services Section, the Development Planning Section and the Storm Water Engineering Section prior to public hearing. If the plans for development and maintenance of the wetland ecosystem are not provided and/or sustained to the satisfaction of the City, then Boeing shall be required to provide a plan for wetland replacement/enhancement for the test lake at a ratio of 1.5:1 and a plan for a 25 foot wide landscaping buffer, to the satisfaction of the mitmeas -2 Development Services Section and the Development Planning Section. Installation of wetlands improvements, if required, shall be completed according to a schedule (which recognizes vegetation requirements and weather patterns) approved by the Development Services Section. A limited right of entry agreement will be required to allow access to the wetlands areas for City inspection of the test lake; this agreement shall be approved by the City Attorney and duly recorded with King County prior to the issuance of site preparation permits. Monitoring/restoration elements of the plan will be in full force and effect for the duration of the test lake. A landscaping maintenance surety device will be established, to be equivalent to ten percent of the value of the introduced plantings and to be in full force and effect for the duration of the test lake. Funds for this device may be assigned from existing bond accounts between Boeing and the City of Renton. Note 6.a.: The Washington State Department of Ecology has completed a preliminary evaluation of the planned test lake project and will be reviewing the proposed wetland development, in detail, following City action. 7 The applicant shall, in order to mitigate impacts to the earth, water, and natural environment, provide a specific on- site access plan which: i) employs existing access routes to the maximum extent feasible; as available; and ii) develops new access route linkages at locations which minimize intrusion into the wetlands. The applicant will need to work with staff to ensure that appropriate routes (and paving plans as necessary) are developed; approved plans/schedules for restoration of any new roadways, following completion of excavation and stockpiling, will also be required by staff. These plans shall be submitted to the Development Services Division a minimum of two weeks prior to public hearing, and shall be approved by staff prior to that hearing. Approved routing plans shall be in full force and effect for the duration of project installation (test lake, stockpile and wetland). 8 The applicant shall, in order to address off-site transportation impacts, provide a routing plan and travel schedule for construction vehicles. Emergency vehicle access routes shall be maintained and protected at all times. This plan shall be approved by the Development Services Division prior to issuance of the first site preparation permit and shall be in full force and effect for the duration of site preparation activities. ADVISORY NOTE #1: The applicant will be required to comply with provisions of each/all applicable local, state and federal guidelines for the creation and maintenance of the test lake, the stockpiled soil and wetland areas. Particular attention is directed to the Mining, Excavation and Grading Ordinance, the Land Clearing and Tree Cutting Ordinance, and the Surface and Storm Water Management Ordinance. mitmeas-3 DEPART.&T OF PLANNING/BUILDING/PUBLIC W0Is ENVIRONMENTAL CCHECKLIST REVIEW SHEET �D REVIEWING DEPARTMENT: ay\styv_ �6Y\ �evVlccc� Ij ; i�3) DATE CIRCULATED: 10/25/91 COMMENTS DUE: APPLICATION NO(S): ECF;SP-120-91 PROPONENT: The Boeing Company PROJECT TITLE: Boeing Test Lake BRIEF DESCRIPTION OF PROJECT: Applicant is seeking a permit to excavate 11,000 cy of material to create an approximately .96 acre lake on the future Longacres Office Complex site. This lake will be utilized to test the viability of providing a full-size lake(as a segment of the storm drainage management system,and as a water amenity) at the time of development of the office complex. A separate application is made for the test lake (rather than making the test lake a part of the Office Complex project EIS) because it is preferred that the applicant determine whether the lake would work effectively prior to developing a plan to provide a full-size lake for storm drainage management. In the event that the test lake is unsuccessful, the site is proposed to be restored to its present configuration, and revegetated. LOCATION: NW portion of the southern section of the Longacres site SITE AREA: 2.1 acres BUILDING AREA(gross): IMPACT REVIEW ON ENVIRONMENTAL ELEMENTS: PROBABLE PROBABLE MORE MINOR MAJOR INFORMATION IMPACT IMPACT NECESSARY 1. Earth 2. Air 3. Water 4. Plants 5. Animals 6. Energy&Natural Resources 7. Environmental Health 8. Land&Shoreline Use 9. Housing 10. Aesthetics 11. Light&Glare 12. Recreation 13. Historic&Cultural Preservation 14. Transportation 15. Public Services 16. Utilities COMMENTS: We have reviewed this application with particular attention to those areas in which we have expertise and have Identified areas of probable impact or areas where additional Information is needed to properly assess this proposal. Signature of Director or Authorized Representative Date Rev.6/88 ­—hl DEPAR*.dT OF PLANNING/BUILDING/PUBLIC* :S DEVELOPMENT APPLICATION REVIEW SHEET APPLICATION NO(S).: ECF;SP-120-91 PROPONENT: The Boeing Company PROJECT TITLE: Boeing Test Lake BRIEF DESCRIPTION OF PROJECT: Applicant is seeking a permit to excavate 11,000 cy of material to create an approximately.96 acre lake on the future Longacres Office Complex site. This lake will be utilized to test the viability of providing a full-size lake(as a segment of the storm drainage management system,and as a water amenity) at the time of development of the office complex. A separate application is made for the test lake (rather than making the test lake a part of the Office Complex project EIS) because it Is preferred that the applicant determine whether the lake would work effectively prior to developing a plan to provide a full-size lake for storm drainage management. In the event that the test lake is unsuccessful, the site is proposed to be restored to Its present configuration, and revegetated. LOCATION: SEC: TWNSHP: RNG: NW portion of the southern section of the Longacres site TO: PUBLIC WORKS DIVISION SCHEDULED TAC DATE: 11/19/91 ENGINEERING SECTION TRAFFIC ENG.SECTION UTILITIES ENG.SECTION FIRE PREVENTION BUREAU POLICE DEPARTMENT DEVELOPMENT SERVICES DIVISION _CONSTRUCTION FIELD SERVICES DEVELOPMENT PLANNING PLANNING&TECHNICAL SERVICES PARKS AND RECREATION DIVISION OTHERS: COMMENTS OR SUGGESTIONS REGARDING THIS APPLICATION SHOULD BE PROVIDED IN WRITING. PLEASE PROVIDE COMMENTS TO THE PLANNING DIVISION BY 5:00 P.M.ON NOVEMBER 8, 1991. REVIEWING DEPARTMENT/DIVISION: L--'APPROVED APPROVED WITH CONDITIONS NOT APPROVED DATE: SIGNATURE OF DIRECTOR OR AUTHORIZED REPRESENTATIVE REV.5/90 de hl DEPAR NT OF PLANNING/BUILDING/PUBLIC', KS ENVIRONMENTAL CHECKLISTREVIEW SHEET REVIEWING DEPARTMENT: DATE CIRCULATED: 10/25/91 COMMENTS DUE: 1 1/08/91 REENTON FiR- L Ez?T. APPLICATION NO(S): ECF;SP-120-91 %'.i E PHE'En?i '?:'''1==•U PROPONENT: The Boeing Company NJ �01 PROJECT TITLE: Boeing Test Lake 4rl,'� BRIEF DESCRIPTION OF PROJECT: Applicant is seeking a permit to excavate 11,000 cy of material to create an approximately.96 acre lake on the future Longacres Office Complex site. This lake will be utilized to test the viability of providing a full-size lake(as a segment of the storm drainage management system,and as a water amenity) at the time of development of the office complex. A separate application Is made for the test lake (rather than making the test lake a part of the Office Complex project EIS) because it Is preferred that the applicant determine whether the lake would work effectively prior to developing a plan to provide a full-size lake for storm drainage management. In the event that the test lake is unsuccessful, the site is proposed to be restored to its present configuration, and revegetated. LOCATION: NW portion of the southern section of the Longacres site SITE AREA: 2.1 acres BUILDING AREA(gross): IMPACT REVIEW ON ENVIRONMENTAL ELEMENTS: PROBABLE PROBABLE MORE MINOR MAJOR INFORMATION IMPACT IMPACT NECESSARY 1. Earth 2. Air 3. Water 4. Plants 5, Animals 6. Energy&Natural Resources 7. Environmental Health - a. Land&Shoreline Use 9. Housing 10. Aesthetics 11. Light&Glare 12. Recreation. 13. Historic&Cultural Preservation 14. Transportation 15, Public Services 16. Utilities COMMENTS: We have reviewed this application with particular attention to those areas in which we have expertise and have identified areas of probable impact or areas where additional Information is needed to properly assess this proposal. -ig Kat Difector or Authorized Representative D Rev.6/88 ­ht DEPAWNT OF PLANNING/BUILDING/PUBLIC -KS DEVELOPMENT APPLICATION REVIEW SHEET APPLICATION NO(S).: ECF;SP-120-91 PROPONENT: The Boeing Company PROJECT TITLE: Boeing Test Lake BRIEF DESCRIPTION OF PROJECT: Applicant Is seeking a permit to excavate 11,000 cy of material to create an approximately.96 acre lake on the future Longacres Office Complex site. This lake will be utilized to test the viability of providing a full-size lake(as a segment of the storm drainage management system, and as a water amenity) at the time of development of the office complex. A separate application Is made for the test lake(rather than making the test lake a part of the Office Complex project EIS) because it is preferred that the applicant determine whether the lake would work effectively prior to developing a plan to provide a full-size lake for storm drainage management. In the event that the test lake Is unsuccessful, the site Is proposed to be restored to its present configuration, and revegetated. LOCATION: SEC: TWNSHP: RNG: NW portion of the southern section of t tf aE-o—ngacres site TO: PUBLIC WORKS DIVISION SCHEDULED TAC DATE: 11/19/91 ENGINEERING SECTION TRAFFIC ENG.SECTION UTILITIES ENG.SECTION '----'FIRE PREVENTION BUREAU POLICE DEPARTMENT DEVELOPMENT SERVICES DIVISION CONSTRUCTION FIELD SERVICES DEVELOPMENT PLANNING PLANNING&TECHNICAL SERVICES PARKS AND RECREATION DIVISION OTHERS: COMMENTS OR SUGGESTIONS REGARDING THIS APPLICATION SHOULD BE PROVIDED IN WRITING. PLEASE PROVIDE COMMENTS TO THE PLANNING DIVISION BY 5:00 P.M.ON NOVEMBER 8, 1991. REVIEWING DEPARTMENT/DIVISION: APPROVED APPROVED WITH CONDITIONS NOT APPROVED DATE: 'SIGNATU�O DIRECTOR OR AUTHORIZED REPRESENTATIVE REV.5/90 ae.mm DEPAR-. T OF PLANNING/BUILDING/PUBLIC V1 S ENVIRONMENTAL CHECKLIST REVIEW SHEET REVIEWING DEPARTMENT:�D ay.� r7cL YfA�6�� DATE CIRCULATED: 10/25/91 COMMENTS DUE: 1 1/03/91 APPLICATION NO(S): ECF;SP-120-91 PROPONENT: The Boeing Company , i ' 2.5 i9Q� s PROJECT TITLE: Boeing Test Lake BRIEF DESCRIPTION OF PROJECT: Applicant Is seeking a permit to excavateKJ-1;000 cy of material to create an approximately .96 acre lake on the future Longacres Office Complex site. Tlif-stake-will fle�ttld2tic!:�q test the viability of providing a full-size lake (as a segment of the-storm drainage management system,and as a waterecrtenity) at the time of development of the office complex. A separate application is made for the test lake (rather than making the test lake a part of the Office Complex project EIS) because it is preferred that the applicant determine whether the lake would work effectively prior to developing a plan to provide a full-size lake for storm drainage management. In the event that the test lake is unsuccessful, the site is proposed to be restored to its present configuration, and revegetated. LOCATION: NW portion of the southern section of the Longacres site SITE AREA: 2.1 acres BUILDING AREA(gross): IMPACT REVIEW ON ENVIRONMENTAL ELEMENTS: PROBABLE PROBABLE MORE MINOR MAJOR INFORMATION IMPACT IMPACT NECESSARY 1. Earth 2. Air 3. Water 4. Plants 5. Animals 6. Energy&Natural Resources 7. Environmental Health 8. Land&Shoreline Use 9. Housing 10. Aesthetics 11. Light&Glare 12. Recreation 13. Historic&Cultural Preservation 14. Transportation 15. Public Services 16. Utilities COMMENTS: We have reviewed this application with particular attention to those areas in which we have expertise and have identified areas of pr , le Impact or areas where additional Information is needed to properly assess this proposal. Signature of erector or Authorized Representative Dates Rev.6/88 e hl DEPAO :NT OF PLANNING/BUILDING/PUBLICO XS DEVELOPMENT APPLICATION REVIEW SHEET APPLICATION NO(S).: ECF;SP-120-91 PROPONENT: The Boeing Company PROJECT TITLE: Boeing Test Lake BRIEF DESCRIPTION OF PROJECT: Applicant Is seeking a permit to excavate 11,000 cy of material to create an approximately.96 acre lake on the future Longacres Office Complex site. This lake will be utilized to test the viability of providing a full-size lake(as a segment of the storm drainage management system, and as a water amenity) at the time of development of the office complex. A separate application is made for the test lake (rather than making the test lake a part of the Office Complex project EIS) because it is preferred that the applicant determine whether the lake would work effectively prior to developing a plan to provide a full-size lake for storm drainage management. In the event that the test lake Is unsuccessful, the site Is proposed to be restored to Its present configuration, and revegetated. LOCATION: SEC: TWNSHP: RNG: NW portion of the southern section of tl-ie--lo—ngacres site TO: PUBLIC WORKS DIVISION SCHEDULED TAC DATE: 11/19/91 ENGINEERING SECTION TRAFFIC ENG.SECTION UTILITIES ENG.SECTION FIRE PREVENTION BUREAU POLICE DEPARTMENT DEVELOPMENT SERVICES DIVISION CONSTRUCTION FIELD SERVICES DEVELOPMENT PLANNING PLANNING&TECHNICAL SERVICES PARKS AND RECREATION DIVISION OTHERS: COMMENTS OR SUGGESTIONS REGARDING THIS APPLICATION SHOULD BE PROVIDED IN WRITING. PLEASE PROVIDE COMMENTS TO THE PLANNING DIVISION BY 5:00 P.M.ON NOVEMBER 8, 1991. REVIEWING DEPARTMENT/DIVISION: PPROVED APPROVED WITH CONDITIONS NOT APPROVED t � � DATE: S �� Si ATURE OF D OROUTHORIZED REPRESENTATIVE REV.5/90 devrvaht DEPART&T OF PLANNING/BUILDING/PUBLIC WI S ENVIRONMENTAL CHECKLIST REVIEW SHEET REVIEWING DEPARTMENT: DATE CIRCULATED: 10/25/91 COMMENTS DUE: 1 1/08/91 -: S' APPLICATION NO(S): ECF;SP-120-91 PROPONENT: The Boeing Company PROJECT TITLE: Boeing Test Lake BRIEF DESCRIPTION OF PROJECT: Applicant Is seeking a permit to excavate 11,o00 cy of material to create an approximately.96 acre lake on the future Longacres Office Complex site. This lake will be utilized to test the viability of providing a full-size lake(as a segment of the storm drainage management system,and as a water amenity) at the time of development of the office complex. A separate application is made for the test lake(rather than making the test lake a part of the Office Complex project EIS) because it Is preferred that the applicant determine whether the lake would work effectively prior to developing a plan to provide a full-size lake for storm drainage management. In the event that the test lake is unsuccessful, the site is proposed to be restored to its present configuration, and revegetated. LOCATION: NW portion of the southern section of the Longacres site SITE AREA: 2.1 acres BUILDING AREA(gross): IMPACT REVIEW ON ENVIRONMENTAL ELEMENTS: PROBABLE PROBABLE MORE MINOR MAJOR INFORMATION IMPACT IMPACT NECESSARY 1. Earth 2. Air 3. Water 4. Plants 5. Animals 6. Energy&Natural Resources 7. Environmental Health 8. Land&Shoreline Use 9. Housing 10. Aesthetics 11. Light&Glare 12. Recreation. 13. Historic&Cultural Preservation 14. Transportation 15. Public Services 16. Utilities /f �� �/ COMMENTS Wavereviewed this application with particular ahention to those areas in which we have expertise and have identified ha areas of probable Impact or areas where additional Information is needed to properly assess this proposal. Signature of Director or Authorized Representative Date Rev.6;88 ­hl DEPAPSENT OF PLANNING/BUILDING/PUBLIC IKS DEVELOPMENT APPLICATION REVIEW SHEET APPLICATION NO(S).: ECF;SP-120-91 PROPONENT: The Boeing Company PROJECT TITLE: Boeing Test Lake BRIEF DESCRIPTION OF PROJECT: Applicant Is seeking a permit to excavate 11,000 cy of material to create an approximately .96 acre lake on the future Longacres Office Complex site. This lake will be utilized to test the viability of providing a full-size lake (as a segment of the storm drainage management system,and as a water amenity) at the time of development of the office complex. A separate application is made for the test lake (rather than making the test lake a part of the Office Complex project EIS) because it is preferred that the applicant determine whether the lake would work effectively prior to developing a plan to provide a full-size lake for storm drainage management. In the event that the test lake is unsuccessful, the site is proposed to be restored to its present configuration, and revegetated. -~ LOCATION: SEC:, ,'TWNSHP: 'RNG: `-- NW portion of the southern section of tFi o gacres site TO: PUBLIC WORKS DIVISION SCHEDULED TAC DATE: 11/19/91 ENGINEERING SECTION TRAFFIC ENG.SECTION UTILITIES ENG.SECTION FIRE PREVENTION BUREAU POLICE DEPARTMENT DEVELOPMENT SERVICES DIVISION CONSTRUCTION FIELD SERVICES DEVELOPMENT PLANNING PLANNING&TECHNICAL SERVICES PARKS AND RECREATION DIVISION OTHERS: COMMENTS OR SUGGESTIONS REGARDING THIS APPLICATION SHOULD BE PROVIDED IN WRITING. PLEASE PROVIDE COMMENTS TO THE PLANNING DIVISION BY 5:00 P.M.ON NOVEMBER 8, 1991. REVIEWING DEPARTMENT/DIVISION: APPROVED APPROVED WITH CONDITIONS NOT APPROVED DATE: SIGNATURE OF DIRECTOR OR AUTHORIZED REPRESENTATIVE REV.5/90 d-ht DEPAR.*T OF PLANNING/BUILDING/PUBLIC 4 4VS ENVIRONMENTAL CHECKLIST REVIEW SHEET REVIEWING DEPARTMENT: DATE CIRCULATED: 10/25/91 COMMENTS DUE: 1 1/08/9.1, APPLICATION NO(S): ECF;SP-120-91 PROPONENT: The Boeing Company PROJECT TITLE: Boeing Test Lake BRIEF DESCRIPTION OF PROJECT: Applicant is seeking a permit to excavate 11,000 cy of material to create an approximately .96 acre lake on the future Longacres Office Complex site. This lake will be utillzed to test the viability of providing a full-size lake(as a segment of the storm drainage management system,and as a water amenity) at the time of development of the office complex. A separate application is made for the test lake(rather than making the test lake a part of the Office Complex project EIS) because it is preferred that the applicant determine whether the lake would work effectively prior to developing a plan to provide a full-size lake for storm drainage management. In the event that the test lake is unsuccessful, the site is proposed to be restored to its present configuration, and revegetated. LOCATION: NW portion of the southern section of the Longacres site SITE AREA: 2.1 acres BUILDING AREA(gross): IMPACT REVIEW ON ENVIRONMENTAL ELEMENTS: PROBABLE PROBABLE MORE MINOR MAJOR INFORMATION IMPACT IMPACT NECESSARY 1. Earth x 2. Air 3. Water 4. Plants 5. Animals 6. Energy&Natural Resources 7. Environmental Health 8. Land&Shoreline Use 9. Housing 10. Aesthetics 11. Light&Glare 12. Recreation 13. Historic&Cultural Preservation 14. Transportation 15. Public Services 16. Utilities COMMENTS: �4;/ry/'��.�7 ?�'/� iiC We have reviewed this application with particular attention to those areas in which we have expertise and have Identified areas of probable Impact or areas wher dditional information Is needed to properly assess this proposal. Signaturdof Director or Authorized Representative Date Rev.6/88 , ht DEPAO_NT OF PLANNING/BUILDING/PUBLIC• `(S DEVELOPMENT APPLICATION REVIEW SHEET APPLICATION NO(S).: ECF;SP-120-91 PROPONENT: The Boeing Company PROJECT TITLE: Boeing Test Lake BRIEF DESCRIPTION OF PROJECT: Applicant Is seeking a permit to excavate 11,000 cy of material to create an approximately.96 acre lake on the future Longacres Office Complex site. This lake will be utilized to test the viability of providing a full-size lake (as a segment of the storm drainage management system,and as a water amenity) at the time of development of the office complex. A separate application is made for the test lake(rather than making the test lake a part of the Office Complex project EIS) because it is preferred that the applicant determine whether the lake would work effectively prior to developing a plan to provide a full-size lake for storm drainage management. In the event that the test lake is unsuccessful, the site Is proposed to be restored to its present configuration, and revegetated. LOCATION: SEC: TWNSHP: RNG: NW portion of the southern section of tFe Congacres site TO: PUBLIC WORKS DIVISION SCHEDULED TAC DATE: 11/19/91 ENGINEERING SECTION TRAFFIC ENG.SECTION UTILITIES ENG.SECTION FIRE PREVENTION BUREAU POLICE DEPARTMENT DEVELOPMENT SERVICES DIVISION CONSTRUCTION FIELD SERVICES DEVELOPMENT PLANNING PLANNING&TECHNICAL SERVICES PARKS AND RECREATION DIVISION OTHERS: COMMENTS OR SUGGESTIONS REGARDING THIS APPLICATION SHOULD BE PROVIDED IN WRITING. PLEASE PROVIDE COMMENTS TO THE PLANNING DIVISION BY 5:00 P.M.ON NOVEMBER S, 1991. REVIEWING DEPARTMENT/DIVISION: APPROVED APPROVED WITH CONDITIONS NOT APPROVED �11�5;c°.v �,,✓�Z�C �-iE,fSu,�=6-S S.f.�f-tt iJ,E ���r<v ,=,v T/� T�Sl-G:�c� f--'��ir��o.>/ 2V.</,�- 77u.rS �,� �o7r5frdc�zn�/ /�c/riG /1U,:,d� C,�'GcuL•�l/oiY� �Y' S�Zr�r e� � /J� � 3�3%S�v:�l� Aj�'1/� TEE rn�71- l`72 / fir DATE: SIGNATURE OF DIRECTOR OR AUTHORIZED REPRESENTATIVE REV.5/90 d,—ht DEPART.OT OF PLANNING/BUILDING/PUBLIC W10S ENVIRONMENTAL CHECKLIST REVIEW SHEET REVIEWING DEPARTMENT: DATE CIRCULATED: 10/25/91 COMMENTS DUE: 11/08/91 APPLICATION NO(S): ECF;SP-120-91 PROPONENT: The Boeing Company PROJECT TITLE: Boeing Test Lake BRIEF DESCRIPTION OF PROJECT: Applicant is seeking a permit to excavate 11,000 cy of material to create an approximately .96 acre lake on the future Longacres Office Complex site. This lake will be utilized to test the viability of providing a full-size lake(as a segment of the storm drainage management system,and as a water amenity) at the time of development of the office complex. A separate application is made for the test lake (rather than making the test lake a part of the Office Complex project EIS) because it is preferred that the applicant determine whether the lake would work effectively prior to developing a plan to provide a full-size lake for storm drainage management. In the event that the test lake Is unsuccessful, the site is proposed to be restored to its present configuration, and revegetated. LOCATION: NW portion of the southern section of the Longacres site SITE AREA: 2.1 acres BUILDING AREA(gross): IMPACT REVIEW ON ENVIRONMENTAL ELEMENTS: PROBABLE PROBABLE MORE MINOR MAJOR INFORMATION IMPACT IMPACT NECESSARY 1. Earth 2. Air 3. Water 4. Plants 5. Animals 6. Energy&Natural Resources 7. Environmental Health 8. Land&Shoreline Use 9. Housing 10. Aesthetics 11. Light&Glare 12. Recreation 13. Historic&Cultural Preservation 14. Transportation 15. Public Services 16. Utilities COMMENTS: �)op(ica�.1 $�cvi�C( nUT� ({�� ��f��Ovti (S cz' '�Yi,t [-c_S2 s(�G TV We have reviewed this application with particular attention to those areas in which we have expertise and have identified areas of probable Impact or areas where additional information is needed to properly assess this proposal. r ��- ';-a Z + rYl 'Signature of Director or Authorized Representative Date Rev.6/88 ­hl DEPA*cNT OF PLANNING/BUILDING/PUBLIC .KS DEVELOPMENT APPLICATION REVIEW SHEET APPLICATION NO(S).: ECF;SP-120-91 PROPONENT: The Boeing Company PROJECT TITLE: Boeing Test Lake BRIEF DESCRIPTION OF PROJECT: Applicant Is seeking a permit to excavate 11,000 cy of material to create an approximately.96 acre lake on the future Longacres Office Complex site. This lake will be utilized to test the viability of providing a full-size lake (as a segment of the storm drainage management system,and as a water amenity) at the time of development of the office complex. A separate application Is made for the test lake(rather than making the test lake a part of the Office Complex project EIS) because it is preferred that the applicant determine whether the lake would work effectively prior to developing a plan to provide a full-size lake for storm drainage management. In the event that the test lake is unsuccessful, the site Is proposed to be restored to its present configuration, and revegetated. LOCATION: SEC: TWNSHP: RNG: NW portion of the southern section of tfieUongacres site TO: PUBLIC WORKS DIVISION SCHEDULED TAC DATE: 11/19/91 ENGINEERING SECTION TRAFFIC ENG.SECTION UTILITIES ENG.SECTION FIRE PREVENTION BUREAU POLICE DEPARTMENT DEVELOPMENT SERVICES DIVISION CONSTRUCTION FIELD SERVICES DEVELOPMENT PLANNING %1 PLANNING&TECHNICAL SERVICES PARKS AND RECREATION DIVISION OTHERS: COMMENTS OR SUGGESTIONS REGARDING THIS APPLICATION SHOULD BE PROVIDED IN WRITING. PLEASE PROVIDE COMMENTS TO THE PLANNING DIVISION BY 5:00 P.M.ON NOVEMBER 8, 1991. REVIEWING DEPARTMENT/DIVISION: APPROVED APPROVED WITH CONDITIONS NOT APPROVED DATE: SIGNATURE OF DIRECTOR OR AUTHORIZED REPRESENTATIVE REV.5/90 de—ht DEPART T OF PLANNING/BUILDING/PUBLIC WWS ENVIRONMENTAL CHECKLIST REVIEW SHEET nn REVIEWING DEPARTMENT: �.x\X t DATE CIRCULATED: 10/25/91 COMMENTS DUE: 11/08/91 APPLICATION NO(S): ECF;SP-120-91 PROPONENT: The Boeing Company PROJECT TITLE: Boeing Test Lake BRIEF DESCRIPTION OF PROJECT: Applicant is seeking a permit to excavate 11,000 cy of material to create an approximately .96 acre lake on the future Longacres Office Complex site. This lake will be utilized to test the viability of providing a full-size lake(as a segment of the storm drainage management system, and as a water amenity) at the time of development of the office complex. A separate application is made for the test lake(rather than making the test lake a part of the Office Complex project EIS) because it is preferred that the applicant determine whether the lake would work effectively prior to developing a plan to provide a full-size lake for storm drainage management. In the event that the test lake Is unsuccessful, the site Is proposed to be restored to its present configuration, and revegetated. LOCATION: NW portion of the southern section of the Longacres site SITE AREA: 2.1 acres BUILDING AREA(gross): IMPACT REVIEW ON ENVIRONMENTAL ELEMENTS: PROBABLE PROBABLE MORE MINOR MAJOR INFORMATION IMPACT IMPACT NECESSARY 1. Earth 2. Air 3. Water 4. Plants 5. Animals 6. Energy&Natural Resources 7. Environmental Health �1 8. Land&Shoreline Use 9. Housing 10. Aesthetics 11. Light&Glare 12. Recreation 13. Historic&Cultural Preservation 14. Transportation 15. Public Services 16. Utilities o COMMENTS: 97 4C� We have reviewed this application with particular attention to those areas In which we have expertise and have Identified areas of probable Impact or areas where dditional Information is needed to properly assess this proposal. i 1,1 Z�*Al / Signature,'of birkfwror uthorized Representative Date Rev.6/88 ­ht DEPA, AT OF PLAN NING/BUILDING/PUBLI* :S DEVELOPMENT APPLICATION REVIEW SHEET APPLICATION NO(S).: ECF;SP-120-91 PROPONENT: The Boeing Company PROJECT TITLE: Boeing Test Lake BRIEF DESCRIPTION OF PROJECT: Applicant is seeking a permit to excavate 11,000 cy of material to create an approximately.96 acre lake on the future Longacres Office Complex site. This lake will be utilized to test the viability of providing a full-size lake (as a segment of the storm drainage management system,and as a water amenity) at the time of development of the office complex. A separate application is made for the test lake(rather than making the test lake a part of the Office Complex project EIS) because it is preferred that the applicant determine whether the lake would work effectively prior to developing a plan to provide a full-size lake for storm drainage management. In the event that the test lake is unsuccessful, the site is proposed to be restor nt configuration, and revegetated. LOCATION: SEC: TW P: RNG: NW portion of the southern section of t e_'Gngacres site TO: PUBLIC WORKS DIVISION SCHEDULED TAC DATE: 11/19/91 ENGINEERING SECTION TRAFFIC ENG.SECTION UTILITIES ENG.SECTION FIRE PREVENTION BUREAU POLICE DEPARTMENT DEVELOPMENT SERVICES DIVISION CONSTRUCTION FIELD SERVICES DEVELOPMENT PLANNING PLANNING&TECHNICAL SERVICES PARKS AND RECREATION DIVISION OTHERS: COMMENTS OR SUGGESTIONS REGARDING THIS APPLICATION SHOULD BE PROVIDED IN WRITING. PLEASE PROVIDE COMMENTS TO THE PLANNING DIVISION BY 5:00 P.M.ON NOVEMBER 8, 1991. REVIEWING DEPARTMENT/DIVISION: APPROVED APPROVED WITH CONDITIONS NOT APPROVED Its DATE: l SIGNATURE OF DIRECT OR AUTHORIZED REPRESENTATIVE REV.5/90 de ht DEPAR' •T OF PLANNING/BUILDING/PUBLIC' �S ENVIRONMENTAL CHECKLIST REVIEW SHEET REVIEWING DEPARTMENT: D�ItGe. DATE CIRCULATED: 10/25/91 COMMENTS DUE: 1 1/OH/91 APPLICATION NO(S): ECF;SP-120-91 " PROPONENT: The Boeing Company :tj IUY ' L jqv. PROJECT TITLE: Boeing Test Lake BRIEF DESCRIPTION OF PROJECT: Applicant is seeking a permit to excavate 11,000 cy of matefial..to create an approximately.96 acre lake on the future Longacres Office Complex site. This lake will be utilized to test the viability of providing a full-size lake(as a segment of the.storm drainage management system,and as a water amenity) at the time of development of the office complex. A separate application Is made for the test lake(rather than making the test lake a part of the Office Complex project EIS) because it Is preferred that the applicant determine whether the lake would work effectively prior to developing a plan to provide a full-size lake for storm drainage management. In the event that the test lake Is unsuccessful, the site is proposed to be restored to its present configuration, and revegetated. LOCATION: NW portion of the southern section of the Longacres site SITE AREA: 2.1 acres BUILDING AREA(gross): IMPACT REVIEW ON ENVIRONMENTAL ELEMENTS: PROBABLE PROBABLE MORE MINOR MAJOR INFORMATION IMPACT IMPACT NECESSARY 1. Earth 2. Air 3. Water 4. Plants 5. Animals 6. Energy&Natural Resources 7. Environmental Health 8. Land&Shoreline Use 9. Housing 10. Aesthetics 11. Light&Glare 12. Recreation 13. Historic&Cultural Preservation 14. Transportation 15. Public Services ✓ 16. Utilities COMMENTS: i VIG(` We have reviewed this application with particular attention to those areas In which we have expertise and have identified areas of probable Impact or areas where additional Information Is needed to properly assess this proposal. Signature of Director or Authorize epresentative Date Rev.6/88 e ht DEPA*..NT OF PLANNING/BUILDING/PUBLIC 0 KS DEVELOPMENT APPLICATION REVIEW SHEET APPLICATION NO(S).: ECF;SP-120-91 PROPONENT: The Boeing Company PROJECT TITLE: Boeing Test Lake BRIEF DESCRIPTION OF PROJECT: Applicant is seeking a permit to excavate 11,000 cy of material to create an approximately.96 acre lake on the future Longacres Office Complex site. This lake will be utilized to test the viability of providing a full-size lake(as a segment of the storm drainage management system,and as a water amenity) at the time of development of the office complex. A separate application is made for the test lake(rather than making the test lake a part of the Office Complex project EIS) because it is preferred that the applicant determine whether the lake would work effectively prior to developing a plan to provide a full-size lake for storm drainage management. In the event that the test lake is unsuccessful, the site Is proposed to be restored to its present configuration, and revegetated. LOCATION: SEC: TWNSHP: RNG: NW portion of the southern section of t e ongacres site TO: PUBLIC WORKS DIVISION SCHEDULED TAC DATE: 11/19/91 ENGINEERING SECTION TRAFFIC ENG.SECTION UTILITIES ENG.SECTION FIRE PREVENTION BUREAU POLICE DEPARTMENT DEVELOPMENT SERVICES DIVISION CONSTRUCTION FIELD SERVICES DEVELOPMENT PLANNING PLANNING&TECHNICAL SERVICES PARKS AND RECREATION DIVISION OTHERS: COMMENTS OR SUGGESTIONS REGARDING THIS APPLICATION SHOULD BE PROVIDED IN WRITING. PLEASE PROVIDE COMMENTS TO THE PLANNING DIVISION BY 5:00 P.M.ON NOVEMBER 8, 1991. REVIEWING DEPARTMENT/DIVISION: /APPROVED APPROVED WITH CONDITIONS NOT APPROVED DATE: SIGNATURE OF DIRECTOR OR-AUTHORIZED REPRESENTATIVE REV.5/90 da ht DEPAF. T OF PLANNING/BUILDING/PUBLIC S ENVIRONMENTAL CHECKLIST REVIEW SHEET REVIEWING DEPARTMENT: Wa-kr �„ 1tTle1J DATE CIRCULATED: 10/25/91 COMMENTS DUE: 11/08/91 APPLICATION NO(S): ECF;SP-120-91 PROPONENT: The Boeing Company PROJECT TITLE: Boeing Test Lake BRIEF DESCRIPTION OF PROJECT: Applicant Is seeking a permit to excavate 11,000 cy of material to create an approximately.96 acre lake on the future Longacres Office Complex site. This lake will be utilized to test the viability of providing a full-size lake(as a segment of the storm drainage management system,and as a water amenity) at the time of development of the office complex. A separate application is made for the test lake(rather than making the test lake a part of the Office Complex project EIS) because it is preferred that the applicant determine whether the lake would work effectively prior to developing a plan to provide a full-size lake for storm drainage management. In the event that the test lake is unsuccessful, the site Is proposed to be restored to its present configuration, and revegetated. LOCATION: NW portion of the southern section of the Longacres site SITE AREA: 2.1 acres BUILDING AREA(gross): IMPACT REVIEW ON ENVIRONMENTAL ELEMENTS: PROBABLE PROBABLE MORE MINOR MAJOR INFORMATION IMPACT IMPACT NECESSARY 1. Earth 2. Air 3. Water 4. Plants 5. Animals 6. Energy&Natural Resources 7. Environmental Health 8. Land&Shoreline Use 9. Housing 10. Aesthetics 11. Light&Glare 12. Recreation 13. Historic&Cultural Preservation 14. Transportation 15. Public Services v 16. Utilities n COMMENTS: St6 60nKeVN" mJ A'r'rp"este0 9Euet.o9t•1C-*rT N9?UCA'iS1a '¢-EVSC,J S)IFC-r- We have reviewed this application with particular attention to those areas in which we have expertise and have identified areas of probable Impact or areas where additional information is needed to properly assess this proposal. A5T>0k'_ (!�;P''R (i- 2-77-CZtb NUS Signature of Director or Authorized Representative Date Rev.6/88 .-ht DEPAO,ENT OF PLANNING/BUILDING/PUBLIC*RKS DEVELOPMENT APPLICATION REVIEW SHEET APPLICATION NO(S).: ECF;SP-120-91 PROPONENT: The Boeing Company PROJECT TITLE: Boeing Test Lake BRIEF DESCRIPTION OF PROJECT: Applicant Is seeking a permit to excavate 11,000 cy of material to create an approximately.96 acre lake on the future Longacres Office Complex site. This lake will be utilized to test the viability of providing a full-size lake (as a segment of the storm drainage management system,and as a water amenity) at the time of development of the office complex. A separate application is made for the test lake(rather than making the test lake a part of the Office Complex project EIS) because it is preferred that the applicant determine whether the lake would work effectively prior to developing a plan to provide a full-size lake for storm drainage management. In the event that the test lake is unsuccessful, the site Is proposed to be restored to its present configuration, and revegetated. LOCATION: SEC: TWNSHP: RNG: NW portion of the southern section of tFe­Eo­ngacres site TO: PUBLIC WORKS DIVISION SCHEDULED TAC DATE: 11/19/91 ENGINEERING SECTION TRAFFIC ENG.SECTION �l ATM UTILITIES ENG.SECTION FIRE PREVENTION BUREAU POLICE DEPARTMENT DEVELOPMENT SERVICES DIVISION CONSTRUCTION FIELD SERVICES DEVELOPMENT PLANNING PLANNING&TECHNICAL SERVICES PARKS AND RECREATION DIVISION OTHERS: COMMENTS OR SUGGESTIONS REGARDING THIS APPLICATION SHOULD BE PROVIDED IN WRITING. PLEASE PROVIDE COMMENTS TO THE PLANNING DIVISION BY 5:00 P.M.ON NOVEMBER 8, 1991. REVIEWING DEPARTMENT/DIVISION: WMCrtr 2V, APPROVED APPROVED WITH CONDITIONS NOTAPPROVED (11C WMbv ltT1U5( �JfC D[➢T. Dof;S MOT o6SFcr -To -"e USE of � �'n�! Z Sln7Pt t 6Qnr te U,MCn nCK. 1A't0RANr on a -renvoaAAA 3asu Fna, rtic tiauaaG ot-ME tnS LAKE ~ Ot+L'( Aut n1,66Tt►'% 1KspPr6e or, waft W p'10L - 6 u--� rc fe ?rVA1?f*%N'0 Stn PPl( Fu(ti unC Dcve�o4nc*r aP nv� siA5 3VAPkk. RE SlARGE-9 b1 A IZC�rTLN u1A�C� Ci-ct aF -n}e vto5tl S1 C is (li"'trtt ,hc LSP66V geQUicc A¢cA of -tile ci" of tZr rrcaa * t�PCKc�ew �iv6iEt�m1 7iu)(& (RPBTD DiAtk, 'W- MaZ0 ABoue QRovu0 uiah AOe�uAte CIERhr,�tCe FOtI� -3111.A)'Q ZEtiI:(c VP'LJC- . � SUOSt�.'S -tU pu- A'PP(ntAttr Q�QHITS k ir+SYcccio+� Ft"L� t Skin/ GF�Fduf1� 277- 621c) DATE: ?AoV, 14, 1911 SIGNATURE OF DIRECTOR OR AUTHORIZED REPRESENTATIVE REV.5 r 90 a—hi DEPAR. ..&OF PLANNING/BUILDING/PUBIC', ENVIRONMENTAL CHECKLIST REVIEW SHEET REVIEWING DEPARTMENT: �t 0 n� M DATE CIRCULATED: 10/25/91 COMMENTS DUE: 11/08/91 APPLICATION NO(S): ECF;SP-120-91 PROPONENT: The Boeing Company PROJECT TITLE: Boeing Test Lake BRIEF DESCRIPTION OF PROJECT: Applicant is seeking a permit to excavate 11,000 cy of material to create an approximately .96 acre lake on the future Longacres Office Complex site. This lake will be utilized to test the viability of providing a full-size lake(as a segment of the.storm drainage management system,and as a water amenity) at the time of development of the office complex. A separate application Is made for the test lake(rather than making the test lake a part of the Office Complex project EIS) because it Is preferred that the applicant determine whether the lake would work effectively prior to developing a plan to provide a full-size lake for storm drainage management. In the event that the test lake Is unsuccessful, the site is proposed to be restored to its present configuration, and revegetated. LOCATION: NW portion of the southern section of the Longacres site SITE AREA: 2.1 acres BUILDING AREA(gross): IMPACT REVIEW ON ENVIRONMENTAL ELEMENTS: PROBABLE PROBABLE MORE MINOR MAJOR INFORMATION IMPACT IMPACT NECESSARY 1. Earth 2. Air 3. Water 4. Plants 5. Animals 6. Energy&Natural Resources 7. Environmental Health 8. Land&Shoreline Use 9. Housing 10. Aesthetics 11. Light&Glare 12. Recreation 13. Historic&Cultural Preservation 14. Transportation 15. Public Services 16. Utilities COMMENTS: ; T ltihe� frvcfe5 �o feav� sr�e e Lop) A Fo We have reviewed this application with particular attention to those areas in which we have expertise and have identified areas of probable Impact or areas where additional Information is needed to properly assess this proposal. Signature of Director or Authorized RepresenLeAe Date Rev.6/88 --hi DEP*RENT OF PLANNING/BUILDING/PUBt_Ifs-jRKS DEVELOPMENT APPLICATION REVIEW SHEET APPLICATION NO(S).: ECF;SP-120-91 PROPONENT: The Boeing Company PROJECT TITLE: Boeing Test Lake BRIEF DESCRIPTION OF PROJECT: Applicant Is seeking a permit to excavate 11,000 cy of material to create an approximately.96 acre lake on the future Longacres Office Complex site. This lake will be utilized to test the viability of providing a full-size lake (as a segment of the storm drainage management system,and as a water amenity) at the time of development of the office complex. A separate application is made for the test lake (rather than making the test lake a part of the Office Complex project EIS) because it Is preferred that the applicant determine whether the lake would work effectively prior to developing a plan to provide a full-size lake for storm drainage management. In the event that the test lake is unsuccessful, the site is proposed to be restored to its present configuration, and revegetated. LOCATION: SEC: TWNSHP: RNG: NW portion of the southern section of tFe-Toin-gacres site TO: PUBLIC WORKS DIVISION SCHEDULED TAC DATE: 11/19/91 ENGINEERING SECTION TRAFFIC ENG.SECTION UTILITIES ENG.SECTION FIRE PREVENTION BUREAU POLICE DEPARTMENT DEVELOPMENT SERVICES DIVISION CONSTRUCTION FIELD SERVICES DEVELOPMENT PLANNING PLANNING&TECHNICAL SERVICES PARKS AND RECREATION DIVISION OTHERS: COMMENTS OR SUGGESTIONS REGARDING THIS APPLICATION SHOULD BE PROVIDED IN WRITING. PLEASE PROVIDE COMMENTS TO THE PLANNING DIVISION BY 5:00 P.M.ON NOVEMBER 8, 1991. REVIEWING DEPARTMENT/DIVISION: APPROVED APPROVED WITH CONDITIONS NOT APPROVED �.�.,. DATE: SIGNATURE OF DIRECTOR OR AUTHORIZED REPRESENTATIVE REV.5/90 d-ht NOTES: 1. APPROXIMATELY 1.500 TRIPS REWIRED BETWEEN TEST LAKE AND MATERIALS 2.PROPOSED CONSTRUCTION DATES 6 JAN.1992 TO 20 JAN 1992 HOURS OF CONSTRUCTION 7 DO A.M TO 4:00 P.M. MONDAY THROUGH SATURDAY 3 MEASURES TO MINIMIZE DUST: 1)WASH CON TRUCTION �f o EQVPMENT NOljrE DAILY 17 A, USE RO-PI)AT EACH 'T E. END OF EQUIPMENT ROUTE. A. A:, r7 ..Vr Al 14 I o b C'- 4II 1 "S I ip 14 r T.47t Ru _7 .2e 0 4 EQUPUEN ROUTE FROL TEST Kr N TO 11TERIA I I r 6 ZONE.1.55 "_S7rq ROUND TRIP CITY OF RENTON Dow —P.—­ OF PUBLIC —S LONGACRES PARK SITE DEVELOPMENT TEST LAKE LOCATION MAP CONSTRUCTION MITIGATION PLAN I WEE DWA/10.10.21 C5x000S3OWG :6:1 ,I , ;' +���f�. ► . 0 .0 .ten, a�.a�t-•a �r�;�1i�'b *1 ��"... ; i��` IL' E ,� I 1 i"- a�-� - - -,I� .���1rZ►G�G:`u�r'�'_�'' ITT � �.�`� I'f I`' ��1�1:'�`I �`, �1!� e� I�a.�; ��i-;�=•--•mil;�..� � �, _- � �. -;� l J - I�'1 ,�„ �., �; 148l 1 -/, �� I \ r�ry 3 i{ I_rv:�i .•Ccx Ivt ur Ho 0 l_I t I c -. __. .� ..�'.•- \o, j c >> r ,tF '�y//J mil- .\:fT �` •. /, cp ,p �. y /. LL ol — r� II -i:-- -.� ,n.N I ., I _.- IIII ._-.-._. - '-.. .. 3rw �� E,�` 1• \\ q � 1 I F s a I J: / H. .. LONGACRES RACE. TRACK. •� II s I r t , I:ti:i ie, 1,1 \l 1 r F o N � I �I � t� � +� �� �� ��� I�fl�l�lr�ii(il �IifililZ[i)� �.: 'I� I, �,�! ��a ��� ` _I•= � m � ���\.. 11111PIII00f, 1f1 Ili 1mS l I R N I N D!UI S T R I A L IN P A R K � ,1, // � ¢ s�b }`i -; III j1r '1 a IL-1 L•_�. o I .J7 .. la .. • I I' I 'll I- •'I � �Yt.p FI it r L.��'� I EI. -— _ _+^• _ _ I 'I PACIrIC T'�nVE 5 7 ;�� la 1. L IgARLI CTON INDUSTRIAL _ I, N t Z R E N T O PARIt K l I ND.)� •, i' I .1 i' --- �If yra p Q';a�a };� -� IL J - _ IAA•' I 1 still ,-� P { saI` � I � 1 1 E�ARLINGTGN I1,16US1 flIAL PARK np i I(cJ 1 v 8 i -a TEST LAKE RESEARCH PROJECT a ). 1 FOR THE BOEING COMPANY Y LONGACRES PARK SITE DEVELOPMENT CITY of, RENTON ££ g i € I IT nTrl h ZN VICINITY MAP e TABLE OF CONTENTS 1 COVER SHEET 2 SITE LOCATION MAP 3 TEST LAKE PLAN 4 TEMPORARY PIPING 5 EROSION/SEDIMENTATION DETAILS PROJECT SITE L GACRES PARK LONGACRES PARK DRIVE PENTON.WA 90057 PROPERTY OWNER: BOEING � " •\'� CITY OF RENTON P.O.BOX 3067 ` or ' fA NS 13-0 FP 1 DAw iurN♦ wInLlc wowNs C ola�'O R n T 0•J SEATTLE.WA 98124-2201 A ITN: LOW PITZER y,`„� LONGACRES PAST SITE LAKE DEVELOPMENT CIVIL ENCINCER: COVER SHEET SVERDRUP CORP. P.0.BOX 97062 n 8/28/91 •.YU CSx9pp01 RKLAND.WA 98083-9162 _. ... mcm J.D.B. 1 a S DWN/10.1191 C5x00001.DWG { IRON PIPE&&Pw.iMil iarvin EXISTING PROPERTY or CORNER rArNlRmou a"D" 7 N 52.38.631 T Niiioa E 52.382.631 _ r•'•0- . IRON PIPE k CAPt6U STREET EXISTING PROPERTY --- _- CORNER N 72 945.429 noKAT7 tKrl E 52,339.955 a a7Y n dal _. iwwi:rnoRu nnAw Ao� � <14 E 2 IRON PIPE 6d�I§AP 'KRARDS MEA i EXISTING PR 3PERTY ].2s7 AGES R V. . CORNER I .AL aTT or RnTou Y N 72 9.t aoaoA TpRLL r[ILARD j .. .I t 52.335.a E . INNTDR rR0 IRON FIFE k CAP rEnANDs—A a i�uti Ar E_XI Nfi-e?OPER TY 1..9.3 UEs ER S1'VATE FRD.an w �• N 8.702 TEST LAKE St E E] J 5.5t6 iL4MD9 A A o!6 rIAl...Of 1.uA. 1 TEMPORARY N72260 'I CONSTRUCTION E 63,020 ACC[Bf ROAD EXISTING]'YARO NTORAMT i ➢ � � 1 � 1 TEMPORARY W INf. 1 1� ...orrKw MA. .m. A. t Cal ISBtn STPP.E! �- j 1 I I /'� s 'I .rATUA aF rtN ua (.. /L'. 1 AER S ARE, l L ; D1,2 AMS 4 j = = � I I WElVN03 AREA AGES 0—A— ...� i — I.AS I l L I. AGES I nnxRAt.an or RerrrN I ,, AIRMaDTIMAI ra71.A.o j /' --- __-----; 29 � 1 I 32 33 - 134 E 32,73{ -1 ROCK ENTRANCE PAD I I -- I - 1 MATERIALS DISPOSAL 201E L Tf 7 SW 2711N STREET TREET .. FILTER FABRIC FENCE a I 1 40 MINIMUM 1 ( r A O%.NO' 110'MINIMUM -/-// APPROX.ib{' �FILTER FABRIC F NC! II/ 7/'� ! .. 37 I .. 6'N1DE OV PFLOW SPILLWAY i`..i j I SaDomCOKTV o�L 3 3 8 . - rBer a a wl7D. VWAL&L11CO -- —`rawn_.u-- —----- { WATflI OUALtTY {WAL[ A APPROX.480• 0.71% ` I g 43 = 44 n IM , 1 IC z a I OA• _ m Z 9rn s5 ' uI m g m '' ~_ `,Ij z o . g > '� M wN� • � � /01 \I I l l md.nTr I I l J I l J I JJ J ! I I ! ! I ! I l J �1 J ♦J l ! :l ! ! J J J ! > � I \ A \ � TEST LAKE VICINITY - PLAN 12 \ .d :a' _lip orrsrwB an.oc b1Ev. rMrEs ll..o.ro ns.av Ix NTN. y1 NIN. T J Vyr ll ^P %fJP Tf SiFiT E . � TEST LAKE �! « n B• r J > I 1 .s •VMIES TNCM I.S.I ro..l (NAK.SIEE�55f �"c '\1.J S r- CITY OF REN TON LE C� iC!-A'" OEP xn iu ENi O/ PUBt�C M'OnKS III^^^���../,, LONCACRES PARK 9TE DEVELOPMENT • .M1 �r�ti.." SGLEI /-I/2'•I'-0' ��01 B+IEroalt S1al� //lL+I R� S/IB�9t xnam�TKx vLM V4NIE5 r TEST LAKE - PLAN •p ^• A TEST LAKE - SECTION C '� �^ z-1/r.a-NcaA.+rrNo TYPE %•oaI/+ELL•w°p.r fLar VALVE SERIES 12•rol pV.vANr2E0 lI°.IJ]1 I0.LEE�S�iE>•ED tt, 2ft. u5T M,z FL6. t'.2-I/2'PVC RFPIA:ER PEN Y rfTN/La LWIRCL. f-riz•SOl.tO °L�1ro lsrr)!M. 2 PLLS.) +vAfL/o-A-vu COV•ANr aLVAN:ZEU PIPE t�Sll1.b PVG TEE r LEAOI, G I-I GALVANIZED (M. ALM! (M. .P'w !M IB°PL6)� ]I♦ 6•B•zZ°I ELL!M. I.PL".) 2-1/S'aL ANIIED %aLLVVANI�L F(°.111) WIM GFYPO M. 2_M.I 1•Aw.w PVC PIPE am V�w _ _ 1._ ° OD -C! - 7• }} J'IYO. I•.2-I/2•P i1l rYP.YL-JEo1.CER GGA�I(r19. 2 PLCJ.) GUSIINO(Sr ro LAXEhYVRANr /IKr•YARD ll I•PYC Ell t'GCiI.B°PVC PIPE '�- 2' •'LG. Ga/tl(M. 2 P.m.) 2-1/'0AL-7IED ml- 2-1 VK 1E£ j I/Z'GAL PIPE VAN((JID Etl I�T1•'T�w/ �- (2/i6./ '>` (M. 1 PL. + rriz'PAH-Nccu-Arfw rrPE a,E rILar vALYF, gTlrEs rzt-or G'PYL STILLIlq YELL— /JIJLOGE). 9rNEVED tt+55 ISJ. CAST �. P G AVRAL/�UAr vYK LOiAN • .• 2'+12•KWa •• VC r eE+a. a FLai (•PLC M-IL9 ) B'PVc SIfLLIW YELL IB•nfN. j( @LL 1EEL I-VI'SOLO "n) E1°ELT,l Lv i=4S.) paRO �?ALvµ•��f 1 ~II I,In 1 B'O47NELL 10 K•.T J'B•1z rJ4w Jtl1MM (MVA�ISEDm/�O.IJ]) M.2 H.GS.) WATER SUPPLY LEVEL CONTROL PLATFORM - PLAN A LEVEL CONTROL PLATFORM - SECTION B nCC fN OJ11�15°PSI ElYt6iz�fONYOIANr l AV+fT0ER�VfY fEA S'ECUL'I COT. ORPLtAG/IF1D VERIFY f )]Gt btu f4 7 !/%SAISl AS J]�E RfEfiT°L=LOOP RESfSTAHF J'9AL V. NIPPLE t'rJ'PK t'/mY.CiD PRESSLRE �l/.O aCjR�VPREVEM� _ EXISTIW YA /IYD2Wr a•aS•PVC ALL a��9PPE'r .•u•PYr Eu .•PVC ELL . a+rw JOINT t•SCH.Etl PK PIPE g •, p CITY OF RENTON 1 }. DEPAR iuENT OP PVRLIC V/ORrS LONGACRES PARK SITE DEVELOPMENT FA61 BATTLE //O'�f�x,l"Y zL1.9/ YN R31(APARr10Ir c��v� RaRs�6 � E/2R/91 J1 0 .fIIL NOf[N1i01 ZL1E.E E/2V/1 X rRl VARIES HYDRANT - SECTION C - NOTES: 1, BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY OCCURS.A 1A. lEMP01RARY FENCING SHALL BE REMOVED BY THE CONTRACTOR AS APPROPRIATE TO THE - FILTER FABRIC MATERIAL 60'WIDE POLLS. PRE-CONSTRUCTION MEETING MUST BE HELD WIN THE CITY OF RENTON WORK SCHEDULE. USE STAPLES OR WIRE RINGS TO ATTACH DEPARTMENT OF PUBLIC WORKS DESIGN ENGINEER, FABRIC TO WIRE 15. THE CONTRACTOR SHALL CONSTRUCT A SEDIMENT CONTROL TRAP 2, ALL LIMITS OF CLEARING AND AREAS OF VEGETATION PRESERVATION AND WATER OUALITY DRAINAGE SWALE ADJACENT TO THE MATERIALS DISPOSAL ZONE PRIOR ---2 r2-+1A GA.WIRE AS PRESCRIBED ON ME PLAN SHALL BE CLEARLY FLAGGED RI THE TO ANY MATERIAL STOCKPILING. THE SEDIMENT TRAP SHALL HAVE 3 1 SIGESLOPCS OR FLATTER. FABRIC OR EQUAL FIELD AND OBSERVED DURING CONSTRUCTION. AND 94ALL COLLECT ALL RUNOFF FROM ME DISPOSAL ZONE. THE LO;AT:ON OF THIS TRAP AND SWALE MAY BE MODIFID BY ME CONTRACTOR AT THE DISCRETION OF THE 3. THE CONTRACTOR SHUT.PROVIDE AND INSTALL A TEMPORARY FILTER ENGINEER. F��7 FABRIC FENCE PRIOR TD ANY SITE X"K AROUND^E MATERIALS 'DISPOSAL ZONE. 16. STOCKPILES OF EARTHEN MATERIALS SHALL BE COVERED YAM 6 MIL PGL-IY! fI :'11 SHEETING AT THE END OF EACH DAY TO RREVENI ERDSION. I I! 1 A. ME ALTER FABRIC SHALL BE PURCHASED IN A CONTINUCUS ROLL, CUT TO THE LENGTH OF THE BARR,ER TO A'JOID U55 OF JOINTS, 12. THE TEST LAKE IS LOCA:[O WI'H!N A.AlRISCI^TIOh4l WETLAND. F',.L 1,'TR•C'LY NI 11 WHEN JOINTS ARE NECESSARY,FILTER C,014 SHALL BE SPLICED PROHIBITED. 1Y.E CONTRACTOR SHALL STAGE HIS WORK LIFORI :U PREVENT ANY II II TOGETHER ONLY AT A SUPPORT POST,WIIN A MINIM:0.1 6-INCH ACCIOENTAL FILLING.AND TC PROTECT THE WETLAND FUNCIIONS AL! ACCESS'0 OVERLAP.AND BOTH ENDS SECURELY IAS'ENED THE POST. TINE TEST LACE ACROSS AE:ANDS SHALL BE CORDUCTCO ON T:NBER OR STEEL MAi TING. K' -----J''------�---�-�-1u-�--- Ill, TEST TAKE SHALL BE EXCAVATED WIDICLH-,'VZING:'L W'l,!RIND- OUS.AND BURY BOTTCM OF FI.:C• 5. ME F:LTEP FABRIC FENCE SHALL BE INSTALLED TO FOLLOW'THE I')DOUBLE 4AND:RNG OY MATERIALS YA MIN Mr WETLAND IS AL',OWI`D. A•-L TRUCKS I` II MATCF.80 1N BOF2" Tr. CON"CURS(WIRE FEASIBLE). THE FENCE P057$SHALL BE SPACED •'AULING EXCAVATED MATEIT ILS S-TALL REMAIN WIT41N THE E%Ca:'A'!O':A-LA UNTIL 1 [ M A 4AA'M!M OF 6 FELT APART AID DRIVEN SECURELY INTO MC GROJNU :wE RATER AL DRAINAGE FR.W ME TRUCK HAS PCCN REUUCCU iAI 4 :R.�KLE. 2'1 A"WOOD POSTS,STANOAR:,OR BL'TER (MINIt1LM OF 30 INCHES). 4n OR EOUAL ALTFRNAIC SIIEL FENCE 1B. T.TF CON'ACTOR'S TSEVI CO UTR'i IE METHODS OOP Mr TEST 1LAKEEER S !1'%E-E 'HE T.XC ACCESS 6. A THE\CH SI A!BE EXCAVATED.1 ROUGHLY P'POST NICE AND 12'ILT1E5 -,TRAP NI SENILE !L SEDIMENTS.A:ETJFOF AF.Y T•V':-A A'�',)R;-EEL Pia TE ACCE$$ DE FR,EPSLI E AND ADJACENT 10:ME ROOD POST 'O A:_o'N TH_'NIL TFR RC!AU C!INCE 10 TIHC ARTS CAKE SITE TO NDSTIN!:I•'UAOS 4.P�I ar .I.:'+'h"J,:1rD"U MINM!2F. �\ FABRIi TD BE BURIED. ..•E T'JRBANCE 10 THE Jl'RI<DIf TIW AL WETLANDS. FILTER FABRIC FENCE / I \ :ME':STANDARD STRENGTH -TER FABRIC IS'JSED.A AtNL MESH SURA3R 9. OUR'NG TH TIME PENJ Wk U OF NEVEMBCR I THRO 4AR(,4 31.ALL PROr:CI SCALE: NONE `E\`E SHALL PC I'ASTEYEG SECURELY I')ME UPS.OPE E.DE fK THE°OST'• 015"URGED'0II.AREAS GREAVER THAN 5.000 SO'JARF FEET THAT ARF P!LEE J•:\C,4CAVY_DUTY IMIC i'APLES AT LEAST 1-'YCH_ONG,1'.[WIRES:IR UNtWTNKC�-CR MGRC !'AE..i(1 4C�,Ri- %A; IT i�4P;,R:.S,Y;.^.FRFC WITH ,IL•G H.NGS. .HE ARE IIALt LX1.40 INTO I14L TRENCH A MIN.MJI{C; • 6 VI;.T'FA•V-1 YH•.LIN M II.0Rr1,l1LININI ..If'.`•l.:.HAL. "•R(.-'N !4CHFS ANSI SHA,t AM E17ENO MORC 14AN 36 INCHES Au,YI 1HF -•I IMF "P•v '•rY!S I IF,'N_N. I.l PHE I'll•:,NI f,•I W W ITT NI AIII 1 GRO'JHD SURFACE. `E '[1 �.... .r. It,A..'I-P!IA!*,E 1N NON 'N,'t n•I:`r.. `n O!R.r)., FILTER rABR.0 MATERIAL A S'AKDARC STRENGTH FILTER FABRIC SHALL BE STAPLED OR WIRED TO 21. :N ANY:,R(A'A C.-•AG PIE".STRIPPED OE`ErFTAT,OA AN::A`T°F N'I I',:P•-•F-R'NOPK 1 R TP,FENCE,4.40 20!NIMES OF PIE FABRIC SH L BE EXTENDED`N!O T4E '.AKI R D CF 30 D-YS OR R OS L 3 -AS"UST BE 2-r2-.IAGA.WIRE -I TP'NCH 'PE FABRIC SHALL NOT[%TEND MOR %36 INCHES ABOVE THE u D 1 N� GRASS? N N R J RCVCD CRGSCY :ABRL OR EOUAL [ 1 OPV'NAL GROUND SURFACE FILTER FABRIC SHALL\0-6E STAPLED TO '.)N R a.•I!V t. 1.1 0 11L HMF to Yi AR \M•IC \. RA�J<EEDNf• I%IS:NC TREES. L A;ONE 1.1 P A:'. P I.f UJRNC THE 4ON S O Ar`R (H!' E III n :NCL IY A D OUT IAUST BE A MEN E.. 1 V L \ F[iNG, I INCH RA SMINGIH'1LTER FABRIC AND LO R O S°ACMC ART.USED. VR R RC ANT P 'U BY THE CITY• F4 0 1.JF F F TIME THE MI" M SP EUF-OR'EEN�E MAY BE ELIMINATE.. N SUCH.A CAS[ THE P'N.00 PRO'•:CC 3/A'- WASHED I G- i- BRC'S_-A^LED OR VA D DACCT'I C OS,MIII AIL (,RAVEL BACKFILL IN TRENCH A 0!HE P.'NS'^NS U` S-AnOARO NOTE P ABOV. P NV. 21. IMF (h- J N L U .N L 4 SO W 1FUC X• W F -`DER AN:dR BOTH 9^.E$OF rL °0 OT Y - R V'D 3C 0 11 C 1 CC FENCE FABRC ON TOE SURE-CE - -{I P-MIk. I THC F -EI.M.t C E CKF_•ED WITH 3/A I L AN JJI. Tt-ER 14-, S.:T,: TREE\ .ION/SED1 E - •ION i C JR•" L B R 0. '0 'DID' j 1 EabRIC`l.N c BF AF40\F"WHEN ' -E rI H[R r<e Cl­'­ 4a' .CFI JR AN N.,..1I:. - tIR cA s N„,ST BI$H[,l, FI A, EXCEPT'\w�"La\- ARE 4c). 4,. I_. ..O.:C',C - S:OPi '.'EA H.i DEE'N 2-, Wo P - A,< Do STLC..'IN,- PC'.T'. :AB.::II ?C Ik5✓:'.IFS!utn:CA:E!' e R Carl.N.;4''A;- E•\ ♦T LEAF CAgY- V„IROLUICED'.'•:Kr A!L. A41'R-„'JIR!._P„ .SHALL MaDE IMM 'A-EI.:. ...I::ON'..I.... .. P.I.;�'),�.P•:. 11.I.ff A, FILTER FABRIC FENCE L ' SCALE NC'NL t/ M•N'M14'r...N.-FYGTH= :OS I i!RER,:C:I':I SF.-W..'.I;EFT...E'AII::II.f.•I VLF,1:,, IDLSIGN i:A A-1.CLR YA`TUN. :d.l. 1 OP OI DANK'."RAGE -G 4ATCa EXISILNG'SURIAC[.. ... _ --_r 2.$f T'EEMf.2 E DEPTH J_ .� ROTICM OF G4ANN'EI °�1� gTER FARSIO FENCE RLJL TO MA:H GRASS 11 I I SEDIMENT JKAFE;1EPTw _ 11 \ T2-DEEP SNLL^:G PASIv EZISn4G 50'RFACE T ��I'.E'.E.6VT'.YA ELEVATION IA T / O DEPTH 3/t"-I 1/I PRON(JC RCCV PROTECTED`LOPE NEAR'RAF, WA1HEO GRAVEL INLET FOR MAINTENANCE ACCESS 3 LEVEL ROt:OM 1.0'DEPTH 2--A-ROCK12* \ 1 r �� `Y CITY OF RENTON WATER DUALITY SWALE ` WATER QUALITY SWALE a oLPAWrM,-a. WON.a O 0.21%SLOPE SCALE: NONE LONSCACI�RESEEPARK SITE DEVELOPMENT v� ••+F7,��'�Ra.w EROSION/SEOIMEAEiA AON DETOI��CT SEDIMENT CONTROL TRAP n SCALE: NONE �X.C.L Mn:08/26/91 Lu KMn:C5X0R006 Ern AA IT DMD/06.29.91 CSX00005.DWG I l 1 1 I r ��i ��F 1 I ^Js�:J,� �C:?.1 I J�:��� ia,i°� :, '.F.�u n.'.° i (�,'e� - \�+l "II / •.t ci 0 0: ILI, 4J., I I Ila d MIM ............................ .......... ............ . .................. ............. ................... ....................... A R N LON6ACRES RACE.• TRA CKI Ill 0 (10 N Y" 7 -1E-'A N I N D U S T R !I A L A R 1 1 ...... ;Tv;; f ...... INDUSTRIALI M A R L IM 0 PARK (I E N T OjN II i r i F .' ,e: .d l�.Qa1 �a i4.1' I \1' I .,nog. J - I N F�ARLINGTON...INDUSIRIAL PA if fi If 3f -L-c- 46�dti .¢W 44 ii a � ._...._..... . _ -.____.-.__.______________.________.______-________-_._._ _. -ev, _ • . _........... z _ !�3 _._.._._._._.__.._ ............. CITY OF RENTON MEMORANDUM DATE: December 23, 1991 TO: Lenora Blauman VIA: Dick Anderson FROM: Randall Parsons 41 STAFF CONTACT: Ron Straka �/ SUBJECT: RESPONSE TO THE MCLEOD GROUP LETTER REGARDING THE BOEING TEST LAKE PROJECT As you requested, the following is the Stormwater Utility's response to the issues contained in the McLeod Group, Inc. letter regarding the Boeing Test Lake Project (ECF; SP120-91). The runoff which originates on the McLeod property and follows a defined drainage course through the Boeing Longacres Park property will be maintained as part of this project and (to our knowledge based on current proposals) future development of the Boeing Longacres Park property. The Boeing Company is required to continue to accept the drainage from the McLeod property at the current flow rate. Proposed flow rate increases resulting from future development of the McLeod property may be subject to appeal by the Boeing Company. The Boeing Company is familiar with, and accounting for, the information contained in the City of Tukwila's Nelson Place/Long- acres Way Storm Drainage System Preliminary Design Report. The Tukwila Nelson Place/Longacres Way Storm Drainage System Preliminary Design Report recommended the construction of a 42" diameter storm interceptor from the McLeod property to the Springbrook Creek (P-1 Channel). The final design and construction of the recommended plan will not be impacted by the Boeing Test Lake project. This will require a City of Renton review and approval of the construction plans prior to the issuance of a permit to allow construction in City right-of-way. In addition, we have proposed that this interceptor serve properties in the City of Tukwila only and, therefore, be owned, operated, and maintained via a franchise agreement by the City of Tukwila. Currently, we are not aware of any agreement between the �• Lenora Blauman McLeod Group Letter R . Boeing Test Lake Project Page 2 City's of Renton and Tukwila that require the City of Renton to require the 42" diameter storm interceptor to be constructed. We expect that the construction of this interceptor should be coordinated with the SW 16th Street improvements currently proposed to occur with the Boeing Company's Customer Service Training Center (CSTC) project. We have noted these concerns in our comments to you for the Boeing Company CSTC project, and are preparing a letter from Lynn to Tukwila's Pubic Works Director stating our concerns and position. If there are any questions regarding this subject, please contact Ron Straka at X-5547, D:91-921:RP:RJS:ps -°i McLeod Group, Inc 213 Lake St So. #5 Kirkland WA 98033 City of Renton Development Services Divisions 200 Mill Ave So. Renton, Washington 98055 1 Nov 1991 Ref : Boeing Test Lake EFC; SP120-91 We have recieved notification of the subject impending project. We are interested in being kept informed of details of the project and the affect it may have on the surrounding property. The McLeod porperty is to the west of the advertised project and the natural drainage passes through the now Longacres facility. Will this drainage course be altered in any way. We would assume the tie_ present capacity of 18 cfs via this route would be maintained now and in the future. The maintaining of this outflow has bearing on the flooding and water table elevation upstream. We would also be interested to know as to wether the installation of the 48 inch outfall from the Nelson Place - Longacres Way Storm Drainage System trunk line to the P 1 Channel can occur while this experiement is in place. Plea advise us when detail of the project is sufficient to a ress these issues. /S' el , OW iles CITY OF RENTON DETERMINATION OF NON-SIGNIFICANCE (MITIGATED) APPLICATION NO(S): ECF;SP-120-91 PROPONENT: The Boeing Company PROJECT NAME: Boeing Storm Water Management Test Lake DESCRIPTION OF PROPOSAL: The Applicant is seeking a permit to create an approximately .96 acre lake on the future Boeing Customer Service Training Center site. This lake is to be constructed to test the viability of providing a full-size lake (as a segment of the storm drainage management system, and as a water amenity) at the time of development of Training Center. LOCATION OF PROPOSAL: South of SW 16th Street; north of SW 19th Street (if extended); west of Oakesdale Avenue (if extended) LEAD AGENCY: City of Renton Department of Planning/Building/Public Works Development Planning Section The City of Renton Environmental Review Committee has determined that it does not have a probable significant adverse impact on the environment. An environmental impact statement (EIS) is not required under RCW 43.21C.030(2)(c). Conditions were imposed as mitigation measures by the Environmental Review Committee under their authority of Section 4-6-6 Renton Municipal Code (see attached sheet). These conditions are necessary to mitigate environmental impacts identified during the environmental review process. This Determination of Non-Significance - Mitigated (DNS-M) is issued under WAC 197-11-340(2). Because mitigation measures have been imposed, the lead agency will not act on this proposal for fifteen (15) days from January 27, 1992. Any interested party may submit written comments which must be submitted by 5:00 p.m., February 11, 1992, in order to be considered. A fourteen (14) day appeal period will commence following the finalization of the DNS-M. Responsible Official: Environmental Review Committee c/o Don Erickson, Secretary Development Planning Section Department of Planning/Building/Public Works 200 Mill Avenue South Renton, WA 98055 PUBLICATION DATE: January 27, 1992 DATE OF DECISION: January 23, 1992 SIGNATURES: ynn uttmann, ministrator U DATE Department of Planning/Building/Public Works �__ / - i3 - % Z- te ey, Administrator DATE unity Service Department! Lee Wheelbr, Fire✓Uhiet UA I t Renton Fire Department mitsig DETERMINATION OF NON-SIGNIFICANCE-MITIGATED MITIGATION MEASURES PROJECT: Boeing Storm Water Management Test Lake PROPONENT: The Boeing Company APPLICATION NUMBER: ECF;SP-120-91 DESCRIPTION OF PROPOSAL: The Applicant is seeking a permit to create an approximately .96 acre lake on the future Boeing Customer Service Training Center site. This lake is to be constructed to test the viability of providing a full-size lake (to serve as a segment of the storm drainage management system, and as a water amenity) at the time of development of the Boeing Commercial Airplane Training Center. LOCATION OF PROPOSAL: South of S.W 16th Street; north of S.W. 19th Street (if extended); west of Oakesdale Avenue (if extended) CONDITIONS: The Environmental Review Committee issued a Determination of Non-Significance-Mitigated with the following conditions: 1. The applicant shall, in order to mitigate impacts to the earth, water, and natural environment, provide: i) an agreement to ensure that the test lake will operate for a maximum period of eighteen (18) months following completion of its installation and that the lake will be remediated (pending City approval) immediately upon the the termination of the 18 month test lake activity period; ii) a conceptual plan for dewatering/restoration of the test lake area at the end of the 18 month test period; this restoration plan shall include a component for using excavated material which will be stored in a protected environment on the site; and III) an agreement to submit an application for a specific remediation plan immediately upon making a determination that test lake operations will cease (at a point no later than 18 months following installation); and iv) an agreement to ensure that the operation of the test lake will be coordinated with the operation of any/all other storm drainage systems for the Training Center. Agreements must be approved by the City Attorney prior to public hearing for the development of the test lake, and duly recorded prior to the issuance of the first site preparation permit. The conceptual plan shall be provided to the Development Services Division a minimum of two weeks in advance of public hearing. Note 1.a.: In the event that an 18 month test period is deemed insufficient to test the adequacy of the storm drainage management system, the applicant may apply to the City for an extension of the test lake permit of a maximum six months duration. Note 1.b.: The applicant will be required to work with staff to develop plans for restoration design (e.g., removal of introduced water; limits on dewatering) and remediation schedule to minimize impacts to the integrity of existing wetlands. Note 1.c.: In the event that the test lake is identified as a wetland by the U.S. Army Corps at the time restoration is proposed, the applicant will need to obtain all necessary permits from the U.S. Army Corps prior to undertaking filling/restoration activities. In the event that a Corps permit is mitmeas- 1 . 4 a necessary to restore the site and that no such permit is authorized, the City will work with the applicant to develop an acceptable plan for dewatering the lake and providing actions necessary to improve the test lake area so that wetland ecology is preserved/enhanced. Note 1.d: Filling is to be achieved according to requirements established in the City's Mining, Excavation and Grading Ordinance. 2. The applicant shall, in order to mitigate impacts to the earth, water and the natural environment, provide specific engineering, testing, monitoring and management plans for the test lake, in accord with the King County Surface Water Control Design Manual, to determine the continuing integrity of the lake and to assess the effectiveness of the storm water management system. Results testing/monitoring activities are to be reported at monthly intervals to the Development Services Division for review by Planning and Storm Water Engineering staff. Plans for management, testing, monitoring and reporting shall be submitted to the Development Services Division a minimum of two weeks prior to public hearing, and shall be approved by staff prior to that hearing. Approved plans shall be in full force and effect for the duration of test lake installation and operation. Note 2.a: The applicant may complete the initial filling of the test lake using water provided from the City of Seattle. Water for all construction activities and subsequent watering activities in the lake must be accomplished using water from the City of Renton pipeline. 3. The applicant shall, in order to mitigate impacts to the earth, water, and natural environment, provide a plan for preparation/installation of the test lake site, including the following components: i) approved design elements (e.g., sediment trap, water quality swales) for development and installation of lake facilities; ii) an element for supervision of excavation/construction activities by a certified soils engineer; iii) an element for scheduling clearing, excavation, and grading activities in a manner which complies with City regulations and which does not conflict with raceway activities; iv) an element for stabilization of surfaces exposed by excavation activities; v) an element for erosion control systems such as sedimentation facilities and perimeter runoff control devices; vi) an element for cleaning and removal programs for silt/debris on the site; vii) an element for wheel- washing of construction vehicles which will travel upon public roadways before their departure from the site; and viii) a$2,000.00 cash deposit for street cleaning. These plans shall be submitted to the Development Services Division a minimum of two weeks prior to public hearing, and shall be approved by staff prior to that hearing. All elements of the plan are to be in full force and effect during site preparation, and (as appropriate) throughout the operation of the test lake. Note 3.a: Excavation is to be achieved according to requirements established in the Mining, Excavation and Grading Ordinance. Note 3.b: In the event that U.S. Army Corps permits are required for excavation of the test lake, the applicant will need to obtain those permits from the U.S. Army Corps prior to undertaking excavation activities. 4. The applicant shall, in order to mitigate impacts to the earth, water, and natural environment, provide a plan for future improvement of the test lake site, including the following elements: i) conceptual components for design, installation and maintenance of perimeter landscaping/screening for the lake (this landscaping plan should be designed so that size and number of plantings create suitable visual buffers and support wildlife [as established in the Landscaping Ordinance in conjunction with the "two percent for wildlife' requirements]); ii) a conceptual schedule for planting which addresses potential inclement weather patterns; and iii) a conceptual component for periodic monitoring of planted areas to determine the continuing integrity of these landscaped areas and to ensure the maintenance/restoration of these areas as required. These conceptual plan elements shall be submitted to the Development Services Division a minimum of two weeks prior to public hearing, and shall be approved by staff prior to that hearing. mitmeas-2 In the event that the lake system is determined to be successful and, therefore, it is retained as a storm drainage system, all landscaping/screening plans shall be approved/installed either: i) within eighteen months of the installation of the test lake or ii) prior to the issuance of the Certificate of Occupancy for the Boeing Commercial Airplane Customer Service Training Center (CSTC), whichever comes first. (In the event that an 18 month test period is deemed insufficient to test the adequacy of the storm drainage management system, and the applicant receives permission to extend the testing period, then the deadline for installing landscaping/screening may be extended accordingly). Monitoring/restoration elements of the plan are to be in full force and effect for five years following installation of plantings. At the time of review/approval of the specific landscaping plans, a landscaping maintenance surety device will be established, to be equivalent to ten percent of the value of the plantings and is to be in full force and effect for a period of five years following the completion of all improvements approved in conjunction with this permit application. 5. The applicant shall, in order to mitigate impacts to the earth, water, and natural environment, provide a plan for testing of soils for contamination at the time of soils excavation and prior to stockpiling. In the event that contaminated soil is located, the applicant shall cease work immediately and file a report with the City Development Services Division within twenty-four (24) hours. Contaminated soils will need to be remediated on site or transported in a permitted manner to an approved disposal site. Authorizations from the Department of Ecology and from the City of Renton will be required for excavation, treatment and/or removal of contaminated soil. 6. The applicant shall, in order to mitigate impacts to the earth, water, and natural environment, provide a specific plan for stockpiling clean excavated soils, including the following elements: i) a suitable upland location to be designated for soil stockpile/storage; ii) a plan for stabilization of the exposed surface; iii) a plan for cleaning/removal programs for silt and debris; iv) an installation schedule for stockpiling which addresses potential inclement weather conditions and which does not interfere with raceway activities; v) a component which describes planned erosion control systems such as sedimentation facilities, hydroseeding,"screening and perimeter runoff control devices; vi) a component for scheduling installation of erosion control systems (including hydroseeding) which addresses potential inclement weather conditions and does not interfere with raceway activities; and vii) a plan for periodic monitoring and maintenance of the stockpile and the related erosion control systems to ensure the continuing integrity of these areas. These plans shall be submitted to the Development Services Division a minimum of two weeks prior to public hearing, and shall be approved by staff prior to that hearing. All erosion control systems related to construction (e.g., sedimentation facilities) shall be installed prior to the advent of stockpiling and shall be maintained in full force and effect for the duration of the existence of the stockpile; hydroseeding shall be installed immediately following the completion of stockpiling. Periodic monitoring and restoration of erosion control systems/hydroseeding shall be in full force and effect for the duration of the existence of the stockpile. 7. The applicant shall, in order to mitigate impacts to the earth, water, and natural environment, provide a conceptual plan for future development of wetlands to replace those wetlands removed for creation of the test lake, and including the following elements: i) conceptual location and configuration of wetland enhancement area at a 1.5:1 ratio (based upon DOE Guidelines); ii) proposed conceptual buffer dimensions (minimum of twenty-five feet in width; iii) proposed conceptual wetland and buffer vegetation palate -- wetland and upland plantings will need to be suitable in number, size and diversity to complement existing native vegetation and to support an enhanced wildlife habitat (i.e., the "two percent for wildlife" requirement must be achieved under the Landscaping Ordinance); newly introduced plantings on this site will need to be compatible with vegetation elsewhere on the site; and iv) conceptual planting installation schedules which recognize and address inclement weather patterns. These conceptual plan elements shall be submitted to the Development Services Division a minimum of two weeks prior to public hearing, and shall be approved by staff prior to that hearing. In the event that the lake system is determined to be successful and, therefore, retained as a storm drainage system, then all wetland/buffer improvement plan shall be approved and improvements shall be installed either: i) within eighteen months of the installation of the test lake; or ii) prior to the issuance of the Certificate of Occupancy for the Boeing Commercial Airplane Customer Service Training Center (CSTC), whichever comes first. (In the event that an 18 month test period mitmeas -3 • � ti is deemed insufficient to test the adequacy of the storm drainage management system, and the applicant receives permission to extend the testing period, then the deadline for installing wetland improvements may be extended accordingly.) Access easements for City inspection will be required to be approved by the City Attorney and duly recorded with King County prior to the issuance of site preparation permits. Monitoring/restoration elements of the plan will be in full force and effect for fire years following installation of plantings. A landscaping maintenance surety device will be established, to be equivalent to ten percent of the value of the plantings and to be in full force and effect for a period of five years following the completion of all improvements approved in conjunction with this permit application. Note 7.a.: The Washington State Department of Ecology has completed a preliminary evaluation of the planned test lake project and will be reviewing the proposed wetland development, in detail, following City action. 8. The applicant shall, in order to mitigate impacts to the earth, water, and natural environment, provide a specific on-site access plan which: i) employs existing access routes to the maximum extent feasible; as available; and ii) develops new access route linkages at locations which minimize intrusion into the wetlands. The applicant will need to work with staff to ensure that appropriate routes (and paving plans as necessary) are developed; approved plans/schedules for restoration of any new roadways, following completion of excavation and stockpiling, will also be required by staff. These plans shall be submitted to the Development Services Division a minimum of two weeks prior to public hearing, and shall be approved by staff prior to that hearing. Approved routing plans shall be in full force and effect for the duration of project installation (test lake, stockpile and wetland). 9. The applicant shall, in order to address off-site transportation impacts, provide a routing plan and travel schedule for construction vehicles. Emergency vehicle access routes shall be maintained and protected at all times. This plan shall be approved by the Development Services Division prior to issuance of the first site preparation permit and shall be in full force and effect for the duration of site preparation activities. ADVISORY NOTE #1: The applicant will be required to comply with provisions of each/all applicable local, state and federal guidelines for the creation and maintenance of the test lake, the stockpiled soil and wetland areas. Particular attention is directed to the Mining, Excavation and Grading Ordinance, the Land Clearing and Tree Cutting Ordinance, and the Surface and Storm Water Management Ordinance. mitmeas - DEPARTMENT OANNING/BUILDING/PUBLIC WORKS ENVIRONMENTAL CHECKLIST REVIEW SHEET REVIEWING DEPARTMENT: WCf_� DATE CIRCULATED: 10/25/91 COMMENTS DUE: 11/08/91 APPLICATION NO(S): ECF;SP-120-91 PROPONENT: The Boeing Company PROJECT TITLE: Boeing Test Lake BRIEF DESCRIPTION OF PROJECT: Applicant is seeking a permit to excavate 11,000 cy of material to create an approximately.96 acre lake on the future Longacres Office Complex site. This lake will be utilized to test the viability of providing a full-size lake(as a segment of the storm drainage management system,and as a water amenity)at the time of development of the office complex. A separate application is made for the test lake(rather than making the test lake a part of the Office Complex project EIS) because It Is preferred that the applicant determine whether the lake would work effectively prior to developing a plan to provide a full-size lake for storm drainage management. In the event that the test lake Is unsuccessful, the site Is proposed to be restored to Its present configuration, and revegetated. LOCATION: NW portion of the southern section of the Longacres site SITE AREA: 2.1 acres BUILDING AREA(gross): IMPACT REVIEW ON ENVIRONMENTAL ELEMENTS: PROBABLE PROBABLE MORE MINOR MAJOR INFORMATION IMPACT IMPACT NECESSARY 1. Earth 2. Air 3. Water X 4. Plants 5. Animals 6. Energy&Natural Resources 7. Environmental Health 8. Land&Shoreline Use 9. Housing 10. Aesthetics 11. Light&Glare 12. Recreation. 13. Historic&Cultural Preservation 14. Transportation 15. Public Services 16. Utilities COMMENTS: Al/f� We have reviewed this application with particular attention to those areas in which we have expertise and have Identified areas of probable Impact or areas wher/8ditlonal Information Is needed to properly assess this proposal. Signature of Director or Authorized Representative Date Rev.6/88 .—M DEPARTMENT OF*NNING/BUILDING/PUBLIC WORKS DEVELOPMENT APPLICATION REVIEW SHEET APPLICATION NO(S).: ECF;SP-120-91 PROPONENT: The Boeing Company PROJECT TITLE: Boeing Test Lake BRIEF DESCRIPTION OF PROJECT: Applicant Is seeking a permit to excavate 11,000 cy of material to create an approximately.96 acre lake on the future Longacres Office Complex site. This lake will be utilized to test the viability of providing a full-size lake(as a segment of the storm drainage management system,and as a water amenity)at the time of development of the office complex. A separate application Is made for the test lake(rather than making the test lake a part of the Office Complex project EIS) because it is preferred that the applicant determine whether the lake would work effectively prior to developing a plan to provide a full-size lake for storm drainage management. In the event that the test lake Is unsuccessful, the site is proposed to be restored to Its present configuration, and revegetated. LOCATION: SEC: TWNSHP: RNG: NW portion of the souther ion of t if eLongacres site TO: PUBLIC WORKS DIVISION SCHEDULED TAC DATE: 11/19/91 ENGINEERING SECTION TRAFFIC ENG.SECTION UTILITIES ENG.SECTION FIRE PREVENTION BUREAU POLICE DEPARTMENT DEVELOPMENT SERVICES DIVISION CONSTRUCTION FIELD SERVICES DEVELOPMENT PLANNING PLANNING&TECHNICAL SERVICES PARKS AND RECREATION DIVISION OTHERS: COMMENTS OR SUGGESTIONS REGARDING THIS APPLICATION SHOULD BE PROVIDED IN WRITING. PLEASE PROVIDE COMMENTS TO THE PLANNING DIVISION BY 5:00 P.M.ON NOVEMBER 8,1991. REVIEWING DEPARTMENT/DIVISION: k APPROVED APPROVED WITH CONDITIONS NOT APPROVED S c � C �9�.s5L cF5 S rail LL i7E f,,�'o�/%�i� �'✓ T/ T�Sl-4V"_•_ L.✓iJ.7�c��/5 �ii.Z CcNSf�/dc�1m�/ G�iJ✓/,U�y �j�✓,d�. C'iYlcuG-•�oiY} G�i' �i�1�»� a� � /1f/ �d 3�1/s'fs.9/-L Rf�"11Y Tiy�a� .✓� Gu i?7��' Qwfc,�y /y / /�(lLJ i! ly�r.sl /i>1c��f,J,�� 6vi// �.r• �'�S/%'vc/FO ll'h DATE: SIGNATURE OF DIRECTOR R AUTHORIZED REPRESENTATIVE REV.5/90 deem