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Permit L01-004 - OLYMPIC PIPELINE - SPECIAL PERMISSION
LO1-004 OLYMPIC PIPELINE 7300 SW 4312D st Z Z a'2' DI J0 0 O. co 0 LLI LU J H: W ga .N ±_ =; Z� •1- O: Z !- U -. ' O .z • W P_• O I-- z. PIPE LINE COMPANY Steve Lancaster Director of Community Development Tukwila Department of Community Development 6300 Southcenter Boulevard, Suite #100 Tukwila, Washington 98188 Re: Pipeline Bypass for Proposed South 180 Street Grade Separation Dear Mr. Lancaster: OLYMPIC PIPE LINE COMPANY 2319 LIND AVE. S.W. P.O. BOX 1800 RENTON, WASHINGTON 98057 (425) 235-7736 October 24, 2000 2 5 2000 The purpose of this letter is to determine SEPA exemption and request permission to work within wetland buffers for the proposed realignment of the Olympic Pipe Line Company (OPL) 14- inch - diameter petroleum product pipeline that crosses beneath South 180 Street in Tukwila, Washington. We understand that the City of Tukwila plans to construct improvements on South 180 Street in the vicinity of the crossing that will include grade separation between the existing vehicle traffic lanes, railroad tracks, and the Interurban Trail. The location of the existing OPL pipeline interferes with the planned construction, and it is essential that the pipeline be realigned in order for the City to complete the improvements. According to a letter from the City of Tukwila Department of Public Works dated July 13, 2000, the pipeline replacement shall be completed in accordance with the Franchise Agreement executed between the City of Tukwila and OPL (City Ordinance No. 496) and effective on October 4, 1967. The Franchise Agreement requires OPL to raise, lower, or change its pipeline should the grade of any road in which OPL's installations are constructed or maintained be changed. OPL plans to realign the pipeline via a directional bore. Based on conversations with representatives from the City of Tukwila and project engineers from Berger /Abam Engineers, Inc., elements of the grade separation at South 180 Street will be supported on secant piles extending to a depth of approximately 60 feet below the existing ground surface. We plan to complete the bore and pipeline at a depth of 100 feet below the existing ground surface at South 180 Street to avoid impacts to the pipeline from construction, based on the opinion of engineering geologists from GeoEngineers. Entry and exit pits are planned for the bore approximately 600 feet south and north of South 180 Street, respectively. Approximately 170 cubic yards of soil (drill cuttings) will be removed 4t. let' istit2d'. SLYSJ�Nwi :+4SiF- :f.+4iJ�P.eas1�:`�' n "�:�aRiu�n ^ Y+. z Z 2 J U 0 � w J = F- • u_ Q. U = d. z (_ I— O z i— w n = p U •O N w • w E- P . tL O w U - H O ~ z Steve Lancaster October 24, 2000 Page 2 from the bore path, along with about 40 cubic yards from each of the entry and exit pit areas during bore activities. According to City of Tukwila Environmental Regulations, Title 21.04.110, excavations totaling less than 500 cubic yards are categorically exempt from the SEPA review process. It is our opinion that the proposed directional bore activities are exempt from the SEPA review process. The bore exit pit and staging area on the north side of South 180`" Street are located within a portion of the Interurban Trail and a gravel- surfaced turnout that extends east of the trail. The proposed work area is located approximately 25 feet from the edge of mapped wetlands depicted in a report titled "South 180`'' Street Grade Separation, Draft Wetlands Study" by Berger /Abaco (April 1999). The wetlands do not appear to be connected to waters of the Green River, and the city's sensitive areas map indicates that they are classified as Type 1 wetlands with a 100 -foot wide buffer. OPLC is requesting permission to temporarily work within the buffer to complete the planned realignment. No work associated with the bore activities is planned within the mapped wetland areas. There are no wetlands mapped in the vicinity of the bore entry area south of South 180` Street. The following section of this letter summarizes planned construction activities, mitigation measures, and scheduling for the directional bore. PROJECT DESCRIPTION The project location is shown on the Vicinity Map, Figure 1. The proposed entry and exit pit locations, mapped wetland areas, and the location of the existing 14- inch - diameter pipeline are shown with respect to surrounding physical features on the Site Plan, Figure 2. The proposed pipeline path is shown on the Cross Section, Figure 3. This project will consist of a directional bore approximately 1,400 feet in length that will be completed at a depth of approximately 100 feet beneath the existing ground surface . at South 180 Street. The new pipeline will have the same 14- inch - diameter size, shape and appearance as the existing line. The new pipeline, like the existing one, will be entirely underground and thus not visible from any location. In order to accommodate the City of Tukwila's construction plans for the South 180` Street Grade Separation, the new pipeline will be installed deeper than the existing line. However, it will be installed within the same easement as the existing line and have a configuration and location comparable to the segment being replaced. The bore path will have a diameter of approximately 24- inches. We estimate that approximately 170 cubic yards of soil will be removed from the bore path during boring activities. Boring pits for drilling equipment will be excavated at the entry and exit points of the bore. The pits will be located within the OPL easement adjacent to the Interurban Trail. The exit pit is located approximately 650 feet north of South 180' Street and the entry pit is located approximately 600 feet south of 180` Street. The pits will be approximately 10 feet deep, by 10 feet long, by 10 feet wide. The entry pit will be situated within a work area measuring approximately 15,000 square feet (100 feet by 150 feet). The exit pit will be situated within a work area that is contained within the immediate vicinity of the trail and gravel turnout area. nit 7!4 Steve Lancaster October 24, 2000 Page 3 Approximately 40 cubic yards of soil will be removed during excavation of each pit. The soil will be stockpiled and used to backfill the pits upon completion of the project. Some soil or rock may need to be imported to construct equipment surfaces in the work areas. Any imported soil or rock will be removed upon completion of bore activities. All drilling mud will be contained within a mud pit or container during boring and will be removed from the site upon completion of the bore process. Work areas will be restored to appropriate grades, and any disturbance will be replanted with a diverse plant community of northwest native vegetation according to a plan that we will develop and submit to you for approval. The work areas will be restored to exceed the function and values of the pre- construction vegetation in the wetland buffer. OPL will provide maintenance until the newly replanted vegetation is established. If possible, vegetation removed during bore activities will be stockpiled and replanted upon completion of the work. Conventional excavation equipment, such as track -hoes, will be used to excavate the entry and exit pits. The directional bore will be completed with a truck- or flatbed- mounted drill. All digging will be performed in a manner to minimize erosion and sedimentation. Erosion control measures including silt fences and surface water control ditches and basins will be incorporated into the construction plans. Access to the north pit can be accomplished on the existing paved Interurban pedestrian trail via South 180 Street. Access to the south pit can be accomplished on the Interurban trail via South 180 Street or via an existing gravel access road at the east end of South 182n Street. Trail traffic can be detoured around the bore construction via Strander Boulevard, the Green River trail, 72" d Avenue South, and South 182n Street for the duration of the construction, which is expected to last for 3 to 4 weeks. The existing pipeline will be purged and filled with an inert substance (nitrogen gas or soda ash and water), capped, and abandoned in place. SCHEDULE Olympic Pipe Line Company wishes to proceed with the proposed bore and pipe replacement as soon as possible. We understand that South 180` Street Grade Separation construction activities will likely commence as soon as May 2001. We anticipate that a bore contractor can be scheduled for the proposed work within 1 to 3 weeks after all permitting and access issues are successfully addressed. Preliminary estimates indicate that approximately 3 to 4 weeks will be necessary to complete construction activities associated with the bore and pipe replacement. We hope that this letter provides sufficient information for allowing the planned directional bore and bypass to be completed under our existing franchise agreement without submission of a SEPA checklist and other substantial development permit requirements. We are available to meet with you to review the project and discuss these matters at your convenience. If you have u_r i, x i >aa`' kez F:� t` #iraiu+ya , r ia�& �r.�a�i� "LrFr��l+wr34 `c� rssk�SicS?it'�ci "�;is:�r .- Steve Lancaster October 24, 2000 Page 4 cc: Robin Tischmak any questions prior to then, you can contact me at my office at (425) 227 -5213. You may also contact me via e-mail at loped iii @bp.com. Respectfully submitted, Olympic Pipe Line Company, Rose Ann Lopez Engineer/Project Manager 10/13/00 FRI 09:11 FAX 425 861 6050 MTh ST O200, \? \ //.1N 2000 4000 SCALE IN FEET VICINITY MAP 190TH ST Reproduced with permission granted by THOMAS BROS. MAPS. This map is copyrighted by THOMAS BROS. MAPS. It is unlowful to copy or reproduce all or any part thereof, whether for personal use or resale, without permission. GEO ENGINEERS -'-► -, OLYMPIC PIPELINE E]002 0 0 0 0 i f II # 1821. _ • Wgia lAPPROXIMATE_LtiOATtOk OF. 7.- I I) . -- _.• - .--- • - APPROXIMATE ENTRY PIT APPROXIMATE LOCATION \ OF EXISTING °PLC 14-INCH PIPELINE EXPLANATION: f WETLAND .aREA Note: The locations of all features shown ore approximate. Reference: Electronic drawing "Existing 14" provided by the City of Tukwila and wetland deliniotion oreas from the report titled. • • ... •• - • 0 0 Geo Engineers • 0 1. • • • • • NOTICE: IF THE DOCUMENT IN THIS FRAME IS LESS CLEAR THAN THIS NOTICE IT IS DUE TO THE QUALITY OF THE DOCUMENT. z o 100 SCALE IN FEET FIGURE 2 200 0 0 n 0 0 0 0 0 0 0 m 50' BUFFER 0 0 z 0 N — o 100 —100 WETLANDS MAPPED ABOVE PIPELINE Notes: 1. The subsurface conditions shown ore based on interpolation between widely spaced explorations and should be considered approximate; octual subsurface conditions rnoy vary from those shown. 2. Refer to Figure 2 for lacotion of Section A —A'. SOUTH 1 Both ST. APPROX. \.._ 140' LENGTH 100' eo (t .' "b'�y';i73ti,+r..�_•e eers 100— 0— — 100 — HORTIZONTAL AND VERTICAL SCALE: 1" =100' CROSS SECTION FIGURE 3 s z w 2 D ,J U 00 0 CO LL.1 � _ w • 0 2 . u • d = w I- _ Z t- o Z ▪ ~ We have reviewed your October 24th letter regarding the proposed realignment of the N pipeline. The realignment will require permission from the City of Tukwila to work within o i-- the 100 foot wetland buffer of a Type 1 wetland. It will also require a SEPA exemption. w w The following State and City regulations are pertinent to your request: �-o w z U '- Per the Categorical Exemptions section of WAC 197 -11- 800(3), an exemption is provided Z for the repair, remodeling, maintenance, or minor alteration of existing private or public structures, facilities or equipment, including utilities. For purposes of this section, the wetland buffer is not considered to be "lands covered by water ". November 21, 2000 Ms. Rose Ann Lopez Engineer /Project Manager Olympic Pipe Line Company P.O. Box 1800 Renton, Washington 98057 Re: Pipeline Bypass at South 180th Grade Separation SEPA (E2000 -029) Dear Ms. Lopez: SEPA Exemption: Work within Wetland Buffer: city of Tukwila Steven M. Mullet, Mayor Department of Community Development Steve Lancaster, Director Under TMC 18.45.080(B)(2), construction of new essential streets and roads, rights -of- way and utilities may be permitted within a sensitive area or buffer with the review and approval of the Director of Community Development. Under TMC 18.45.040(C)(4)(c), disturbances to the buffer must be minimized, and after completion of installation of essential utilities, must be restored to pre - project configuration, replanted as required and provided with maintenance care until newly planted vegetation is established. 41::::Ji ll'Ai ?e,F;. Y.SS .' '; 4` * C :'is 5 %x :m :' .h7f =,ti 4 =Aii .Gi b'ii' ?.:^. X...0 i 7.441/415,` 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 Ms. Rose Ann Lopez November 21, 2000 Page 2 Next Step: Sincerely, Steve Lancaster Director of Community Development cc: Robin Tischmak, Senior Engineer, Tukwila Public Works Fred Satterstrom, Planning Manger, City of Kent Your request for a Categorical Exemption under SEPA is hereby approved. However, your request to work in the wetland buffer cannot be approved until we have reviewed and approved your revegetation and maintenance plans. Please submit this documentation as soon as possible to Deborah Ritter, Associate Planner. She can be reached at 206 -43T -3663. • z iU 0O U 1 : 3 : w J H N w 0: g J, u_ Q co = �.w Z. �-- zr _ U 0 :0 U o I-- w w • U w z U co O I- z 01/04/01 THU 14:51 FAX 425 861 „ X050 Geo - Engineers MEMORANDUM TO: FROM: DATE: FILE: SUBJECT: Paul Jay, The Jay Group, LLC Boyd Benson and Galan Mc!nelly December 7, 2000 0894 -099-00 Request for Proposal for OPLC Tukwila Bypass Revegetation Plan The purpose of this memo is to follow up our telephone conversation of December 6, 2000 ?and to request a proposal from you for a revegetation plan to be incorporated into the planned Olympic Pipe Line Company's (OPLC) Tukwila Bypass bore project. The City of Tukwila is planning to construct grade separation improvements at South. 180 Street at a location approximately 1,000 feet east of the Green River in Tukwila (see attached Vicinity Map). The grade separation improvements include construction of a road underpass beneath two sets of railroad tracks and the Interurban Trail. An existing 14 -inch OPLC petroleum product pipeline is located within the construction area immediately west of the Interurban Trail. OPLC plans to realign The pipeline to bypass the construction area in a 1,300 foot long directional bore that passes beneath South 180 Street. The proposed bore exit point is located on the Interurban Trail approximately 640 feet north of South 180 Street. The proposed bore exit point is located within the buffers of mapped wetlands located on both sides of the Interurban Trail. The City of Tukwila will permit the proposed bore under the existing OPLC Franchise Agreement provided that a licensed landscape architect with wetland experience develops a y;Ycgetation and maintenance plan. Deborah Ritter, City of Tukwila, has given us verbal authorization to proceed with development of a revegetation plan. The City of Tukwila is requiring the following as part of the revegetation plan: Initial Draft Report (needs to be sealed by a landscape architect licensed in VWa,shington State). • Map existing plant communities within the area of possible surface disturbance at the bore exit point. The existing vegetation should be grouped in. general communities bEt$ :ed on criteria developed by the Jay Group. A copy of the topographic map (1 -foot contour interval) is attached to this memo, and an electronic copy is available. We are mailing a copy of a draft wetland report to you. • Develop typical replanting plans schemes for areas that may be disturber? during the bore activities. A typical replanting scheme should be developed for each of t!,c. plant communities GEO ENGINEERS 0 002 8410 1 Avenue NE Redmond, WA 98052 Telephone: (425) 861-6000 Fax: (425) 861 -6050 0894-099 -00 -1140 01/04/01 THU 14:51 FAX 425 861 R050 Memorandum to Paul Jay December 7, 2000 Page 2 GEO ENGINEERS 2003 identified at the site. The damaged areas should be restored to exceed the function�and values of the pre - construction vegetation. Explain why the choices for the recommended replanting schemes were made, and provide typical types, typical sizing, and typical spacing of plants for each community. • Provide a maintenance schedule for the each of the proposed replacement plant communities. • Provide a narrative on how the planting will be staged and if existing individual plants should be stockpiled and cared for, if appropriate. It would probably be most efficient to delay revegetation until all construction activities are completed and the site has been regraded. Submit the Initial Draft Report the City of Tukwila, OPLC, and GeoEngineers for review. Incorporate review comments into the report. Submit a Final Initial Report to the City of Tukwila. Provide a copy of the report to OPLC, GeoEngineers, and the bore contractor. Receive written approval of the revegetation plan from the City of Tukwila. The Franchise Agreement will then be granted. Complete the directional bore and pipeline installation activities. Meet at the bore exit point once construction activities are completed to define the limits of disturbed areas that need revegetation. The meeting should include a representative from the City of Tukwila, the landscape architect, and the contractor. Mitigation in areas that have been slightly disturbed should also be identified. Complete observation services during the replanting. The revegetation services will likely be completed by OPLC or the bore contractor or subcontractor, and should be observed and documented by a representative from your firm (provide minimum observation services required). Complete a summary report (needs to be sealed by a landscape architect licensed in Washington State). The report should include the map of the pre - existing vegetation from the Initial Report, a summary of the revegetation activities completed, and a map showing the a :as that were revegetated. A narrative of revegetation for each specific plant community should be included, along with the type, size, and spacing of the plants within the communities. Finel maintenance recommendations should also be included in the report. The report should be distributed . to the City of Tukwila, OPLC, and GeoEngineers. 0894-099-00-1140 . r i'��. i';t`!•.:! vkr?!3;1 MeNVIM11. Kai! X91! ds '�v%t rw"�Lrgava FC^- 'vnlre4y%3ra'tvxxa3. .:a.eo..,..m..,re. z � z ce w J O 0 0 J = co Li u] 0 2 u_ Q _ • a w z = H0 zi— w • w U 0- O E- w LI- w z UN — O I z 01/04/01 THU 14:49 FAX 425 86 86.050 Dec- 19 0O 1On 16a Ja Graup TAVk A . 8. C. D. E. F. G. The )ay Group, LL( Landscape Architects and Environmental Consultants Proposal and Estimate for Professional Fees and Contract Services Date: December 14, 2000 Financially Responsible: GeoEngineers 8410 154th Ave. N.E. Redmond, WA 98052 Property Location: Size of area under review: Property Tax ID B: File 8: A . B. C. D. E. F. G. Eatimatad laid: off of S.180th Street, Tukwila -8000 square feet not known not known Request for Services: Revegetationlmltlgation plan for the Olympic Pipe Line Company Tukwila Bypass bore project. Based on interpretation of your letter dated December 7, 2000, scope of services shall be: Site visit: identify plant communities Create Revegetatien plan: Generally map existing plant communities In bore exit area (c8,000 square foot area). Develop typical replanting schemes for each Identified plant community. Submit initial Draft and after feedback, revise and submit Final Report. Site visit: meet after construction, define limits of disturbed areas. Create planting plan. Site visits (2 minimum): monitor replanting. Summary Report. If the above scope of services is in any way in Inaccurate, please contact our office and we will be pleased to modify this proposal. • , , • .. • ,, is t , • • l• ' • . , • •r, • . , . • • aelow.are estimFgol hours by task based con_groiegIs of similar scoop: Estimated hours /value 6 to 12 hours .12 to 18 hours 8 to 12 hours 6to8hours 8 to 24 hours 14 to 16 hours (assumes Z visits) 15 to 23 hours GEO ENGINEERS IJ 004 ( :0)651 -7252 1927 - 54h Sireel' • Marysville, VII 98270 • (360) 659 -8159 • Fax (360) 651 -7252 • e -mail jav @premierl.nef p.2 ' • S:WU,.0 TO: Greg Villanueva FROM: Deb Ritter _ $? DATE: December 8, 2000 cc: Robin Tischmak Gary Schulz City of Tukwila MEMORANDUM RE: Olympic Pipeline Bypass and associated construction work in wetland buffer at South 180th Grade Separation SEPA (E2000 -029) Steven M. Mullet, Mayor Department of Community Development Steve Lancaster, Director Olympic's request for a Categorical Exemption under SEPA was approved on November 21st (see attached). However, Olympic's request to work in the wetland buffer cannot be approved until Steve Lancaster has reviewed and approved the revegetation and maintenance plans. Next week, Boyd Benson of GeoEngineers (acting as agent for Olympic) will supply us with a copy of their RFP for the wetland buffer work, revegetation and maintenance. We will be supplied with a detailed wetland report after the wetland consultant has been hired. Once Steve Lancaster has reviewed and approved the wetland report for compliance with the Sensitive Areas ordinance, he will issue written approval to work in the wetland buffer. In the meantime, Mr. Benson will be contacting you to begin the application process for a Franchise Utility Permit. It is my understanding that this permit will be needed to perform the actual testing and construction and that it should contain any conditions of approval pertaining to the Sensitive Areas ordinance. These conditions will be listed in Steve Lancaster's approval letter. I will provide you with copies of pertinent documentation as it becomes available. Please contact me with any questions. 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 .4114.W. - ~ _ = 2 + ' 1I. �: u.,N�+4 +uai- �`(.�i.'w:�.v.'.�Lu itii.'!(.vtC:� i,�G ^vai'•.,w` i'J. f 03/02/01 FRI 13:04 FAX 425 8 6050 • Signature: _ •�• Planner: ID eb e)2. GEO ENGINEERS CITY OF Department of Community Development 6300 Southcenrer Boulevarr, Tukwila, WA 98188 Telephone: (206) 431 -3670 FAX (206) 431 -3665 E -tnos tuktat@ei_tulcWila.vina.us APPLICATION Application Complete (Date: ) Application Incomplete (Date: ) NAME OF PROJECT/DEVELOPMENT: LOCATION OF PROJECT/DEVELOPMENT: Give street address or, ifvaconz indicted lot(s), block and subdivision, access street; and newest intersection. UST ALL TAX LOT .NUMRBRS. Quarter: iqW , Section: S( Township:7231J Itringc: 4 'J ' s (This information nuzy be found on yaw. tax statement) DEVELOPMENT COORDINATOR : The individual who: • has decision making authority on behalf of the applicant in meetings with City staff • has full responsibility for Identifying and satisfying all relevant and sometimes overlapping development standards, and • is the primary contact with the City, to whose all notices and reports will be sent Name: EOS ' A M LOPE Address: Z3 f 9 14F 8 AUK tS uQ_ FOR STAFF VSE ONLY Sierra 2)pe. 7-51) Ffe Number: L Project Pile Number: Other File Numbers: -f-►-► OLYMPIC PIPELINE 16 002 SPECIAL PERMISSION DIRECTOR Phone: (Ata5 a'lo� 7-5 2-� ?J FAX: - --53aO Date: 3 /� 0/ o ff „- oaf RECEIVED MAR (15 ?0O1 COMVlMiJNI rY DEVELOPMENT Information:Required May be waived in unusual cases, upon approval of both Public: Works and Planning Information . Waived .. PbWk /'Ping Office Use Only Comments & Conditions. APPLICATION FORMS: 1. Application Checklist one (1) copy, indicating items submitted with application. 2. Permit Fee ($200). XX 3. Written description of the project, the deviation being requested and response to the applicable decision criteria. s N-L -c -QcQ \O \ 25 oD c • ING CODE PARKING DEVIATION 4. A com. - e description of the proposed construction relative to p. ing areas, and all supporting agreements. 5. Dimensional site plan(s . demonstrate parking area consistent with Zoning Co. - - quirements. 6. Parking studies as needed to demons •te adequate parking is provided. LANDSCAPE DEVIATION 7. Landscape plan — two (2) copies showing size and species of existing and proposed plant materials, required perimeter landscape types, parking areas, buildings, walkways, transit facilities, property lines, dimensions and area of planting beds and any calculations necessary to demonstrate compliance with review criteria. TREE REGULATION DEVIATION 8. Tree survey showing size and species of existing trees, with trees to be removed and trees to be retained noted (unless request is for use of canopy cover method) COMPLE E APPLICATION ' ECKLIST The materials listed below must be submitted with your application unless specifically waived in writing by the Public Works Department and the Department of Community Development. Please contact the Department if you feel that certain items are not applicable to your project and should be waived, or should be submitted in a later timely manner for use at the Public Hearing (e.g., revised colored renderings). Application review will not begin until it is determined to be complete. ADDITIONAL MATERIALS MAY BE REQUIRED. The initial application materials allow starting project review and vesting the applicant's rights. However, they in no way limit the City's ability to require additional information as needed to establish consistency with development standards. Department staff are available to answer questions about application materials at 206 - 431 -3670. G. APPHAN\SIGN.HND\SPD.doc, 06/15/00 -e COMPLETE APPLICATION CHECKLIST TABLE :! sn�ari{` �,` e2iv :' "`.'fi3u�`i;�N2'',IiXRft'r1 'iii v. "t , • Alt ±Sb m Inforation :Required :Maybe •. ;ed in unusual cases,: upon approval of both P.ublioWorks'and Planning Information: Waived 'PbWk / Ping Office:U )nly L Comments &:Conditions . „ `. ' . 9. Tre- : • acement calculations per TMC 18.54.130.3 B or canopy c. - calculations per TMC 18.54.140 B. 10. Description of the nature • the undue hardship caused by strict compliance wit • e Tree Regulations, proposed mitigation measures and jus ' .tion for the deviation from Tree Regulations. SENSITIVE AREA ORDINANCE DEVIATIONS 11. Site Plan — two (2) copies showing all buildings, parking areas, walkways, property lines, planting areas, sensitive areas, their buffers and setbacks. / Oc AT3 oV� \, 12. Sensitive area studies and enhancement plans to justify a requested buffer or setback reduction and demonstrate that the reduction will not result in a direct or indirect short-term or long-term adverse g impact to the sensitive area. \ � �,,_(._`, \A-�1 ` CI, r■ ca. • • *O Q'(DU t. j . I + " CODE APPROVAL/DEVIATION 13. Comple "Permanent Sign Permit Application" with all supportin• • aterials and fees ($50). 14. The following info • .tion should be given on the plans: North arrow, title, scale an • , • te; Vicinity map showing location ••• • names of adjacent roads; Property lines; Locations of all buildings on site; Dimensioned elevations of building drawn to sca : for wall signs); Elevations, dimensions and materials of proposed sign(s) including advertising copy; Color elevation of proposed sign. G.\APPHAN\SIGN.HND\SPD.doc, 06/15(00 rlv:urte3tnm±�c+sC"di4ViF's` .' . .. . Oepartment of Community Development 6300 Southcenter BI, #100 Tukwila, WA 98188 Phone: 206 -431 -3670 Fax 206- 431 -3665 Fax To: © L cQ x 1 5 ✓1 Fax: L I 2S - � l ` (.0 0 5 0 Phone: Re: 0 J Urgent ❑ For Review ❑ Please Comment ❑ Please Reply c tY1,l, , )(p1 co_ r cuL Q } uU-e (\ix _cQ— C,L C�`� C l t9U r . uj+) .,\e' I u-r�� - . T \ Camc o vl� S .oup orfn. of * VAL War . �� lS n oss�b�.e. e\a_a_se ��w-e� P� E_ C-e e -VlkeL_ 4 v\u_cl & e-O & ak!A 0 (A) 11 L k ' , ► ` o - (o ec-o l c'S 2 j Ct .; G &f \ co. • C' >•. c-Q:\ e. • -0.-Ck-Q cYc C( Ce\ 23O L- H Oa 5 • 7�arkS CQ c o V ahu <t h! nt 'itmb:irai;c From: Date: Pages: ado ❑ Please Recycle L0 1 - 0 L1 0 !•rtw.'�1:5�2� "' "'; :i':i: [. .., :t•'i:K "'�y}YA1L.Y��:.�iv.::tS' `-utx. TO: File FROM: Deb Ritter DATE: June 18, 2001 Protect Description Letter of Completeness Notice of Application Security Device City of Tukwila Department of Community Development Steve Lancaster, Director MEMORANDUM RE: Olympic Pipeline Realignment Special Permission — Director Proposed Work in Type 2 Wetland Buffer (L01 -004) Steven M. Mullet, Mayor As the result of Tukwila's proposed grade separation at South 180th Street, the Olympic Pipeline Company will be required to realign their 14 -inch petroleum product pipeline. This realignment will require that the pipeline exit at a point located in the 50 foot buffer of Wetland D (as identified in the "Wetlands Study and Mitigation Plan" prepared by Berger /Abam, dated May, 2001). Wetland D is a Type 2 wetland located in Tukwila on the north side of South 180th Street within a wide swale running north -south between the Interurban Trail and commercial - industrial properties. On October 24, 2000, via a letter request received on October 25th, Olympic Pipeline requested permission to perform the pipeline realignment work in the Wetland D buffer. A Notice of Completeness was never issued and the file was considered complete on November 21, 2000. On November 21, 2000 the Director of Community Development acknowledged the letter request and granted an exemption from SEPA under WAC 197 -11- 800(3) on that date. As a Type 2 application, the Special Permission — Director application requires notification to the applicant, parties of record and agencies with jurisdiction. Because the proposed work will occur exclusively in the wetland buffer, no other agencies have jurisdiction. As there are no parties of record it was not necessary to issue a Notice of Application solely to the applicant. Under TMC 18.45.040(C)(4)(c) disturbances to the wetland buffer must be minimized, and after completion of installation of essential utilities, must be restored to pre- project configuration, replanted as required and provided with maintenance care until newly planted vegetation is established. On June 18, 2001 the Director determined that a security device is not required for this project, per TMC 18.45.135. 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 6 . :4,. iio >i.x.4 . 1G t:4: S ` :RI ,-, ��te, N v ' S` )w•w.. . y . : �ii#''�d'�! � ?j" � �' �?�.�°v' i�!i xN' + f •, �K i k' e;e ?9�gX , L�,�r „>� "',� LSi' ?fi$Y r � •x x r � y! � '� >Y 'Q; L`:0.� � e ,t 4i:t tt "+, .py( -R'!'t ,"i.� :�' • 'fib. ''{f'�:4i :%�' t•. '. .' �7 J) 1j/,�c :F % m '•I fJ(: eft N�n y 71 �y • / C RY 1j� £ y {yQ. f / �{��� J ` 1 �: i(o ?NgS �, .> :.. l; U X''�- j ` 3 ,.::: • >.� 0. •'rHR3teq� > x �(F tr '1Z.:*; * %fJtie' r .i:» A >`� x y o ' a . o f la mud) .. I, 4. 8 a 'ft . � ' i ii t! X .. ... '. aZiiie Xi:,�die� ii'rk �( F i i S A dLb >: r. N . t. f � � • E :One .,: k•x• L '>t a[ .. i���c li NAME OF DEVELOPMENT: 01 Ly C� Q l‘ Icr .Af DATE: DEVELOPMENT ADDRESS: l'3pr, 5( L-4- cQ PERMIT NO.: LE) 1 — b CASH ASSIGNMENT NAME: O PLL - 6, •, (to5ls A N7.1 LopEz. TEL. NO. (ZS Z�7 - zi3 � 3 sHALL BE REFUNDED BY MA TO: : ADDRESS: 2 3 I ot 1 1 n1 b AW U C- So u rN w� es r • (please print) CITY/STATE2IP laE ,) v11 Q cf<a55 i DESCRIPTION OF ITEMS TO BE COMPLETED (REFERENCE 1 P •N is M.,,1 AI. R MS - R p SC ;t; Ill - sta. \I Q ors S (e0CM,CLIN 4, a -r n.■Q. LA ek 6 1 f 4 t b x: r-. r Lee r% s <As wet mon or-, • n no W_ t 'n.a.. eor c. 2. • a .., ,. 4, _ _ . i ,15 'a 6t 4t4 u o(% ti RECEIVED BY: As the owner, or authorized agent of the owner, 1 hereby submit cash or cash equivalent in the amount of $ L i (e 50 , ca0 ($150% of value to complete work described above) and attach supporting documentation for value of work. I will have this work carried out and call for a final inspection by this date: ( 1 .— / 3 1/ 08 ), or risk having the City use these funds to carry out the work with their own contractor or in-house manpower. If I fail to carry out the work, I hereby authorize the City to go onto the property to carry out completion of the above deficiencies. l further agree to cot' ete all wo fisted above prior to requesting inspection and `• „`' release of funds, SIGNED: S r fio/z QaSr• AN Al LvP I Pitied 7/Z/ it i• TITLE: 6Eot ,4Ea /-S 4 eoL �.kiS T NYl '.' +•. • . .• • .....: d C+AR?ot:.:.t ..: ...:...... n - ... . r.... .'tiR' •-C .:.\ . ... / : ...xs..v Rl•:FFfQ.AR(»- v.u0.'1=A'A'SR SC�..An'F i'> Q »>?stiN•1X°OiCPtiaG �t' i'? ii3xr �' tf, �A�ti {�x"�'� ii��%rtN>..y';� "'. Y!�• ,"f,�t+�` h : Y' 2:n " 3E ����'' f ,, ,, ,- m � aitt t � ruiJ;g/ ,... -- . ,, : :::ia THIS FUND IS AUTHORIZED TO BE ACCEPTED. SIGNED: DEPARTMENT HEAD: AMOUNT: 4 ,(050, OO CASH 0 CASH EQUIVALENT DEPOSITED THIS DATE: CITY RECEIPT NO. RECEIVED BY: OCT 03 ' 01 11:57AM TUKWILA,DCD /PW 6+Ily 671 I UI hWIId P. 3/3 DEVELOPER'S PR( WARRANTY REQUEST FORM 'w�1:VaP;V>:�nMO'd..!.bMOx0. !tt..xP:PM. \.!NCMKCn.. et'OaC•1ti `RKOINYV(Oi!M1'a•>`MW�OC. Yee.' K4(' H[. ^AY•:'K•V'<•`�CCMtK•ONIe>Ot00�\ ltCWx1NN 'ae•lJfNae••tKt•�YO.Y(IQ• '• • :r ••r. ^..ri °(•(: ^tffTa a:yak' T.A .... . eni!oM:O.t!O.[wWV.':h74o vea+ea 'a:eQenrr, 72 HOUR NOTIFICATION FOR INSPECTION AND RELEASE OF FUNDS DEVELOPER'S REPRESENTATIVE: CHECKED BY: ' >.•.,...xy:vi >3k'r 7f'7?4'('.! 'rl• I have reviewed the above work and found it acceptable and therefore authorize the release of the above cash assignment. AUTHORIZED BY: Upon completion through Section 2, Finance personnel shall send copies to: — Developer — Finanm Department — Permit Coordinator. DCD All work identified in Section 1 of this form has now been completed and returned to department which authorized warranty. I hereby request inspection and release of my cash/cash equivalent. DATE: trP1,1" DEPARTMENT: • ,� ¢ '�:: , lKl%4::'v"(.'G.•tl:�i UU•'?f , M'i'yti� yy �Nru'�^ •, '^A �W,t", Q Y'++ > I t II�y�1�rIfLFM�,[ wlw�'it: S y � >� : iiCb[A 61 `'.....:,..:::.4t:.... tT ^ v ^ >: .. 4.,Ki( ttiv,...0/ /vA.Y•N,SIV.,..S ' K 4, T 5 f. v! .„ ri'ti'n9iL'r`:: AMOUNT: CASH EQUIVALENT — LETTER AUTHORIZING RELEASE CASH CITY CHECK NO. RELEASED THIS DATE: RELEASED BY: FINANCE DEPT. Upon completion of entire form, Finance personnel shall send copies to: — Developer —Finance Department Permit Coordinator, DCD o9/134M additional work area The Jay Group, LLB Landscape Architects and Environmental Consultants Addendum to Wetland Buffer Impacts and Mitigation Plan For the Olympic Pipeline Company Tukwila Bypass Bore Project January 8, 2002 Re: Planting Plan Revisions REc I V JAN 14 2002 COMMUNITY DEVELOPMENT Based on recommendations from the City of Tukwila, the following changes /additions are proposed to the restoration planting plan for the areas disturbed as part of the OPLC pipeline relocation project. 1) The base of the swale, and as far up the slope as necessary to include any areas of standing water, should be planted with black twinberry (Lonicera involucrata). Shrubs should be 1- gallon container size, nursery grown plants, installed an average of 3 feet on- center. 2) The lower third of the slope, down to any areas of standing water in the base of the swale, should be planted with red -osier dogwood (Corpus stolonifera). Shrubs should be 1- gallon container size, nursery grown plants, installed an average of 3 feet on- center. 3) The middle third of the slope should be planted with a mixture of snowberry (Symphoricarpos albus) and Nootka rose (Rosa nutkana). Shrubs should be 1- gallon container size, nursery grown plants, installed an average of 3 feet on- center. 4) Jute erosion control matting should be securely staked down over the entire disturbed area to control erosion and provide stability to the soil surface while the plantings become established. Jute matting should be anchored with "U" shaped standard jute staples at a spacing recommended by the manufacturer. Jute matting should be installed prior to planting, with plants installed through the mat. 1927 - 5,11 Slireei • Marysville, WA 98270 • (360) 659 -8159 • Fax (360) 651 -7252 • e -mail jay @premierl.nell General Planting Notes: a. All shrubs shall be planted at a depth %" higher than the original level of the top of the root ball. b. All plant material shall be nursery grown, the source and quality of any collected stock must be approved by the Landscape Architect prior to installation. c. Bare -root material may be substituted for container stock based on season and availability, to be approved by the Landscape Architect. If substitution is desired, bare -root material must be substituted at a 3:2 ratio for container stock. d. Root masses of container stock shall be scored with a sharp blade to ensure that plants will not become girdled or root - bound. e. The planting pits shall receive an application of 4 -2 -2 or other suitable transplant fertilizer applied per the manufacturer's specification for the subject installation. f. All plant pits shall be saturated immediately following planting to eliminate trapped air pockets and facilitate settling of the backfill material. g. Existing soils shall be used to backfill planting pits. If unsuitable soil or excessive debris is encountered, contact Landscape Architect for alternative solutions. h. Fine ground bark mulch or wood chips shall be installed as a mulch in an area 24" in diameter around all installed woody shrubs. i. All plants shall be marked with a different color biodegradable survey flagging, by species, to facilitate future monitoring and plant survival assessments. All other planting and maintenance notes contained in the original mitigation plan continue to apply to this revision. Please contact our office at 360- 659 -8159 with any question regarding this mitigation plan. Respectfully submitt CC: Paul J. Jay, Land 41 • : Archite t Boyd Benson, GeoEngineers Rose Ann Lopez, OPLC Gary Schultz/Deborah Ritter, City of Tukwila 41 • Mr April 8, 2002 Boyd Benson GeoEngineers 8410 - 154 Ave. NE Redmond, WA 98052 Re: Olympic Pipeline Tukwila 180 Project. Dear Mr. Benson: The Jay Group, LLC, was contracted to inspect the wetland mitigation planting areas for the Olympic Pipeline project near 180 In Tukwila, Washington, and to provide a letter discussing the conclusions of the inspection. Plant installation occurred during the week of March 24 2002. The plant quantities, species and locations installed on -site are consistent with those required by the Mitigation Plan Sheet W -1 by The Jay Group, LLC last revision date January 31, 2002. All trees and shrubs planted in the mitigation areas were found to be live and healthy. Respectfully, The )ay Group, LL( Paul Jay The Jay Group, LLC: Cc: Deborah Ritter City of Tukwila Cc: Rose Ann Lopez O.P.L.C. Landscape Architects and Environmental Consultants 1927 - 51h SfreeI • Marysville, WA 98270 • (360) 659 -8159 • Fax (360) 651 -7252 • e -mail iay @premierl.ne+ Fax Department of Community Development 6300 Southcenter Blvd, Suite 100 Tukwila, WA 98188 Phone: (206) 431 -3670 Fax: (206) 431-3665 ❑ Urgent 0 For Review To: P 1 � From: r Fax: 7) 9 7) _ a� 1 Date: — 02_ Phone: 4Z5 5D, Pages: Z, / R e: 1X�/l e/ ti vl - (WI ( .l lot&A r O Please Comment 0 Please Reply 0 Please Recycle AL A tki k! .Lv'�::.'� <>�.':I'.' + ^(�•;\":wlil'I i:J�.[eN °, V: S�itlir�Lv'�!a'.."L�1134.M« "w'. January 16, 2002 Ms. Rose Ann Lopez Engineer /Project Manager Olympic Pipe Line Company P.O. Box 1800 Renton, Washington 98057 Re: Pipeline Bypass at South 180th Grade Separation Special Permission — Director Work in Wetland D and its Buffer (L01 -004) Dear Ms. Lopez, Mr. Benson & Mr. Jay: We have completed our review of The Jay Group's January 8th proposal to revise and amend. the Mitigation Planting Plan (dated November 7, 2001). We received the proposal on January 14th. The proposal is in response to Item #5 c; our October 10, 2001 letter requiring "development of a final planting plan for the disturbed area that will restore the vegetation to a pre- construction condition or better." Gary Schulz, our Urban Environmentalist, has reviewed and approved your proposal. Please revise and amend the Mitigation Planting Plan and submit two copies of the plan sheet(s) to the undersigned. Actual installation of plant materials is to be observed by a representative of The Jay Group. A representative from the City of Tukwila shall conduct a post - installation inspection upon notification of completion by The Jay Group. The installation and inspection shall be followed by the submission of two copies of a Final Summary Wetland Buffer Report. Sincerely, crik Deborah Ritter Associate Planner City of Tukwila cc: Gary Schulz, Urban Environmentalist Mr. Boyd Benson GeoEngineers 8410 154th Avenue NE Redmond, WA 98052 Department of Community Development Mr. Paul J. Jay The Jay Group LLC 1927 5th Street Marysville, WA 98270 Steven M. Mullet, Mayor Steve Lancaster, Director 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 May 13, 2002 Ms. Rose Ann Lopez Engineer /Project Manager Olympic Pipe Line Company 2319 Lind Avenue S.W. Renton, Washington 98055 VIA FAX 425 - 271 -5320 city of Tukwila Department of Community Development Re: Pipeline Bypass at South 180th Grade Separation Special Permission — Director Work in Wetland D and its Buffer (L01 -004) Dear Ms. Lopez, Mr. Benson & Mr. Jay: Mr. Boyd Benson GeoEngineers 8410 154th Avenue NE Redmond, WA 98052 VIA FAX 425 - 861 -6050 Mr. Paul J. Jay The Jay Group LLC 1927 5th Street Marysville, WA 98270 VIA FAX 360- 651 -7252 Steven M. Mullet, Mayor Steve Lancaster, Director Today, in response to Mr. Jay's April 8th letter, Gary Schulz and I inspected and approved the plantings that were installed in the wetland mitigation planting area. Your next step is to provide two copies of the Final Summary Wetland Buffer Report to the City of Tukwila. This report shall include the following: • a map of the pre- existing vegetation in the area of disturbance; • a summary of the revegetation activities completed and a description of the various plant communities affected; a map (which has been stamped by a landscape architect licensed in the State of Washington) showing the areas that were revegetated along with the botanical and common name, size and spacing of the plants used; and • final maintenance recommendations. Monitoring of replanted areas shall be in accordance with the reports final maintenance recommendations. The bond, in the amount of $4,650.00, shall be released at the end of the monitoring and maintenance period subject to the following: • Removal of survey tape from the installed plants. Successful control of the blackberry bushes adjacent to the wetland mitigation planting area. 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 -431 -3670 • Fax: 206 -431 -3665 sc:`SSri1GtiS= K 44.i41u... 1tl.4 iu+eot. z � w JU 0 Q • W J = U) LL w g a Z = F- o Z ~ U • a co O — fp F- w _ F- o ..z w U = O z Ms. Rose Ann Lopez Mr. Boyd Benson Mr. Paul Jay May 13, 2002 Page 2 Sincerely, Deborah Ritter Senior Planner cc: Gary Schulz, Urban Environmentalist • Final inspection and approval by a representative of the City of Tukwila. If you should have any questions regarding these comments, please contact me at 206- 431 -3663. z _I- • � w Pt J U : 00 0 wi w o • er u. Q� � z o w Elf mo o ' o � o � =U F- w w Z' 2 O z Project: npL PiVahNE by PASS Type of Inspection: Address: Date Called: Special Instructions: Date Wanted: a.m. p.m. Requester: Phone No: L0 ( . -vo( -C INSPECTION RECORD Retain a copy with permit INSPECTION NO. PERMIT NO. CITY OF TUKWILA BUILDING DIVISION 6300 Southcenter Blvd., #100, Tukwila, WA 98188 (206)431 -3670 Approved per applicable codes. El Corrections required prior to approval. COMMENTS: //c -fl '1 Ls CT 1 o . 1J1� f 0.c. We) eX.S ,1 ca 2i►S -� we-t- Inspector: Date: �t 611 AISr tt srf.].':�d�SE�'.rtr_ - ir��`.*. 15i���rr $47.00 REINSPECTION FEE REQUIRED. Prior to inspection, fee must be paid at 6300 Southcenter Blvd., Suite 100. CaII to schedule reinspection. Receipt No.: Date: the Jay Group, LL( Landscape Architects and Environmental Consultants September 17, 2002 Deborah Ritter City of Tukwila Department of Community Development 6300 Southcenter Boulevard, Suite #100 Tukwila, Washington 98188 Re: Nitrogen Vent Installation at South 180''' Street Dear Deborah Ritter: RECEIVED , SEP 19 2002 COMMUNITY DEVELOPMENT The Jay Group, LLC, has been requested to provide general plant impact recommendations for the proposed vent installation at the north end of the Olympic Pipe Line Company (OPLC) South 180` Street reroute in Tukwila, Washington. Our services were requested in a telephone conversation with Boyd Benson of GeoEngineers on September 17, 2002. Our understanding of the proposed work is based on information provided by Mr. Benson and his discussions with you and Rose Ann Lopez of OPLC. The Jay Group, LLC, completed previous evaluations at the site which are summarized in our June 25, 2001 report titled "Wetland Buffer Impacts and Mitigation Plan for the Olympic Pipe Line Company Tukwila Bypass Bore Project" and our November 7, 2001 Mitigation Planting Plan, Sheet W -1. This letter is a supplement to that report. OPLC plans to install a nitrogen gas vent at the north end of the abandoned section of pipeline at the South 180`" Street reroute. The vent will be used to purge air from the abandoned section of pipe and fill it with inert nitrogen gas. The planned work will include excavating approximately 8 to 10 feet down to the abandoned pipeline and installing a small fitting on the pipe. Air within the pipe will then be purged and replaced with nitrogen and the pipeline buried. No above- ground fittings will be installed on the pipeline. We understand that the excavation will likely be shored using trench boxes to minimize the size of the excavation. The vent site will be accessed from the Interurban Trail. We understand that the proposed area for access and excavation associated with the work is approximately 15 feet (north - south) by approximately 40 feet (east - west). The location of the vent valve and the planned area of disturbance as we understand it is shown on the annotated sheet W -1 (11/7/01). We understand =6:6 1927 - 51h Sired • Marysville, WA 98270 • (360) 659 -8159 • Fax: (360) 651 -7252 • e -mail: mail @jayQroupllc.com that the planned work may commence as early as September 19, 2002 and will likely take one to three days. The vent site is wholly located within an area that was replanted with wetland vegetation following completion of the reroute. We understand that OPLC does not plan to complete construction activities outside of the previously planted area. We also understand OPLC plans to remove the plants that are located within the area of disturbance, stockpile the plants, and replant the plants following completion of the vent installation. In our opinion, these actions will have minimal impact to the values and functions of the site provided that the following recommendations are implemented: • All work is completed within the area replanted with vegetation following completion of the reroute. • The site is photographed or sketched prior to the work activities to establish the existing plant locations and types. • The plants are removed in a manner that maintains soil around the root mass. • The plants are stored in a bed of moist bark dust, wood chips, or sawdust so that the roots of the plants are completely covered with moist material for the duration of the activities. • The plants are held in a shaded location or covered with shade cloth to prevent excessive transpiration and stress. • The disturbed area is graded to pre- existing conditions following completion of the earthwork activities. • The plants are replanted as soon as possible following completion of the work in their pre - construction locations, in general accordance with the planting notes presented on Sheet W -1 (11/7/01). • Irrigation is applied to the plants immediately following replanting. The plants temporarily removed for the proposed vent installation are expected to be out of the ground for no more than three days, and should survive if the above listed recommendations are followed. We recommend that the Jay Group, LLC, visit the site within two weeks after completion of the site activities to assess the planting. A letter summarizing our observations will be prepared and distributed to the City of Tukwila and OPLC following our site visit. Plants in the area in the immediate vicinity of the vent pipe should be closely observed for survival during the scheduled monitoring visits required as part of the Tukwila permitting. ^�r'i�5u:Ccit Respectfully Kevin Karlson The Jay Group, LLC. Deborah Ritter - Olympic Pipe me tlaiuffer wo at 180th ( 01 - 004 Page 1 f From: Deborah Ritter To: Gary Schulz Date: 9/17/02 11:27AM Subject: Olympic Pipeline wetland buffer work at 180th (L01 -004) RoseAnn Lopez has clarified the proposed scope of work. Based on her latest conversations with Robin and 1, Olympic will need to get back inside the wetland buffer to tap into the existing pipeline. This work will involve tearing out some of the plants they installed this year. When the pipeline work is finished (it will take about 1 week, starting 9/19/02), the buffer will be replanted to again match the approved planting plan. On Wednesday morning 9/18/02, the Jay Group will supply me with a letter amendment to their wetland report describing all of this. They will also mark up the planting plan to show the proposed area of disturbance. Copies of this information will be given to Public Works. Once the Jay Group verifies that the work will stay inside the previously approved area, Public Works and I will allow them to proceed. CC: Greg Villanueva; Robin Tischmak 7 6 Gui11 v\A-V_Ok Oevikkif\o -2 5-,(s N 1 A a. D r t. moon �. 1.0-0(L Deborah Ritter - Olympic Pipeline work •.:_ Page 1 From: Deborah Ritter To: Robin Tischmak Date: 9/17/02 10:OOAM Subject: Olympic Pipeline work RoseAnn Lopez called this morning to advise that Olympic Pipeline will be doing additional work "outside" of the wetland area covered under L01 -004. This work is scheduled to begin in a week or less. Although the proposed work may prove to be minor in scope, I told her that Public Works may require a permit. I told RoseAnn to check with Public Works asap about permit requirements. She must also contact the Jay Group (the wetland consultant) to verify that the proposed work will be outside of all wetlands or wetland buffers located in the vicinity. I then contacted Boyd Benson at GeoEngineers and told him the same thing. I urged Boyd to have the Jay Group confirm in writing that the work will be outside sensitive areas and to coordinate with RoseAnn before the work proceeds. I told him that the wetland information should be provided to Public Works with a copy to me. CC: Gary Schulz; Greg Villanueva of 46" City of Tukwila —1■ l►. 0 ; y r p •. , Department of Community Development 7908 -= September 18, 2002 Ms. Rose Ann Lopez Engineer /Project Manager Olympic Pipe Line Company 2319 Lind Avenue S.W. Renton, Washington 98055 VIA FAX 425 -271 -5320 Re: Pipeline Bypass at South 180th Grade Separation Special Permission — Director Work in Wetland D and its Buffer (L01 -004) Dear Ms. Lopez, Mr. Benson & Mr. Jay: Mr. Boyd Benson GeoEngineers 8410 154th Avenue NE Redmond, WA 98052 VIA FAX 425 - 861 -6050 0_,C- ec e_w, Mr. Paul J. Jay The Jay Group LLC 1927 5th Street Marysville, WA 98270 VIA FAX 360- 651 -7252 Steven M. Mullet, Mayor Steve Lancaster, Director Today, in response to Kevin Karlson's September 17th letter, 1 have approved your proposed scope of work. As you know, you must also obtain approval from Greg Villanueva in the Public Works Department before work actually commences. Mr. Villanueva was provided with a copy of Mr. Karlson's letter and the attached plan sheet for review this morning. As described in Mr. Karlson's letter, I will need a post- planting letter from the Jay Group indicating their approval of the replanted wetland vegetation and their acknowledgement that it was done in accordance with the approved Wetland Mitigation Plan. If you should have any questions, please contact me at 206 - 431 -3663. Sincerely, .6c,c-f.1,\„)2-4ace_ Deborah Ritter Senior Planner 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206- 431 -3665 s1'uSi;= C - . David McPherson - Olympic Pipeline work From: Deborah Ritter To: Robin Tischmak Date: 9/17/02 10:00AM Subject: Olympic Pipeline work RoseAnn Lopez called this morning to advise that Olympic Pipeline will be doing additional work "outside" of the wetland area covered under L01 -004. This work is scheduled to begin in a week or less. Although the proposed work may prove to be minor in scope, I told her that Public Works may require a permit. I told RoseAnn to check with Public Works asap about permit requirements. She must also contact the Jay Group (the wetland consultant) to verify that the proposed work will be outside of all wetlands or wetland buffers located in the vicinity. I then contacted Boyd Benson at GeoEngineers and told him the same thing. I urged Boyd to have the Jay Group confirm in writing that the work will be outside sensitive areas and to coordinate with RoseAnn before the work proceeds. I told him that the wetland information should be provided to Public Works with a copy to me. Gary Schulz; Greg Villanueva . Page 1: __........y. ...... ..u...�:4.i�:.:: ... .:.z:::J:�.6i:.'il::.:ia..: "ss5 `•'nixS:i;1:i.�,w:.au t.Ati�. eel The Jay Group, LLB Landscape Architects and Environmental Consultants October 9, 2002 Deborah Ritter City of Tukwila Department of Community Development 6300 Southcenter Boulevard, Suite #100 Tukwila, Washington 98188 Re: Inspection of OPLC Work Area at South 180 Street Dear Ms. Ritter: Respectfully submitted, Kevin Karlson The Jay Group, LLC. CC: Boyd Benson, GeoEngineers Rose Ann Lopez, Olympic Pipe Line Company RECO 1 2002 4++ F2►- pPtAtti The Jay Group, LLC, has conducted a site visit and inspection following the recent (October 4, 2002) vent installation at the north end of the Olympic Pipe Line Company (OPLC) South 180 Street reroute in Tukwila, Washington. The Jay Group, LLC previously provided plant impact recommendations pertaining to this most recent work in a letter dated September 17, 2002. Our firm was notified on October 4, 2002 that the project had been completed. On October 7, 2002, I visited the site for the purpose of evaluating the condition of the work area, specifically the mitigation plantings that had been temporarily removed, stockpiled, and re- installed in the mitigation area. The plants in question all appeared to be generally healthy, and have been replanted in general accordance with the planting notes presented on Sheet W -1 (11/7/01). Mulch had been re- applied, and the plants appeared to have been irrigated following re- planting. All plants in the mitigation planting area are beginning to enter their dormant phase, evidenced by changes in leaf color and initiation of leaf senescence. At this time, no mortality or undue stress is apparent in the plants that were temporarily relocated. Continued monitoring of the site in accordance with the June 25, 2001 Mitigation Plan is our only recommendation at this time. 1927 - 5th Sfreet • Marysville, WA 98270 • (360) 659 -8159 • Fax: (360) 651 -7252 • e -mail: mail @iaygroupllc.com ` r': 7��:¢:. x�:.. Y±.*: :.t:1:is:}'fi.u9i,✓(til:ic�i.YaF .. '14"-za KM2i iYMIn iti { The )ay Group, Inc. Landscape Architects, Civil Engineers and Environmental Consultants January 22, 2004 Deborah Ritter City of Tukwila Department of Community Development 6300 Southcenter Boulevard, Suite #100 Tukwila, Washington 98188 Re: Final Inspection of Work Area for OPLC South 180 Street Reroute Dear Ms. Ritter: Loi -voL( RECEIVED JAN ` h 1 / � LOUD', D EVELOPM EN T The Jay Group, Inc., has conducted a final site visit and inspection following notification by GeoEngineers that the landscape contractor had completed the last scheduled maintenance activities at the project site. On January 16, 2004, I visited the site for the purpose of evaluating the condition of the work area, specifically the mitigation plantings, to determine the success of the mitigation project. The attached site photographs document the current and pre- construction conditions of the site. Performance standards required in the Final Mitigation Plan, dated June 21, 2001 include a survival rate of planted vegetation greater than 80 %, and control of non - native, invasive species in the project area (specifically Himalayan blackberry). Periodic maintenance activities at the site have been successful in controlling blackberry, which is currently present in the mitigated area at a density of less than 5% areal cover. The planted vegetation has performed quite well, and now appears to be dense enough to compete with any encroachment by blackberry without further maintenance. Although the site was inspected during the dormant season, areal coverage of planted vegetation is approximately 70 %. During the growing season, the expected areal cover percentage is likely to exceed 90 %. Maintenance activities have kept the planting pits free of weeds, and erosion control grass has established on the side slopes of the mitigation area. The estimated survival percentage is greater than 90 %. Ecological function of the mitigation area has been further enhanced by natural recruitment of native vegetation, including cattail (Typha latifolia), brooklime (Veronica americana) and water plantain (Alisma plantago - aquatica) in the wetter areas, and native willow (Salix sp.) and black cottonwood (Populus trichocarpa) along the slope. Wildlife observed using the area included a pair of Mallard ducks (Anas platyrhynchos). Based on the current conditions at the mitigation area, it is our opinion that the mitigation project has met the performance standards and should be judged successfully 1927 - 54h Sired • Marysville, WA 98270 • (360) 659 -8159 • Fax: (360) 651 -7252 • e -mail: mailgiayyroupllc.com completed. We understand that plastic flagging attached to the mitigation plantings for monitoring purposes will be removed by OPLC by the end of January, 2004. No contingency actions are warranted or recommended, and based on our observations the conditions of the performance bond have been satisfied. Please feel free to contact me at our office should you have any questions or require any further information regarding this project. Respectfully su • miffed, Kevin Karlson The Jay Group, Inc. CC: Boyd Benson, GeoEngineers Rose Ann Lopez, Olympic Pipe Line Company Attachment: Site photos 2 Photo 1: Current condition of north end of mitigation area Photo 2: Pre - construction condition of north end of mitigation area 3 Photo 3: Current condition of mitigation area, view to south Photo 4: Pre - construction conditions of south end of mitigation area 4 o. _ . _ - [ �: y .. R : •n,i tttI •^I- r �!y' ' .•. 6 ' �. „tN,,: '. • r• 1 ^ar.A.'v".'•••'.., . ,,.e ' tirii7: .E `� � \� „ �lJ � • ... , 1. � 4 •M�w.:L« I.I,IfI ��R'�,� ' � R: �.SIQ31 � � . • •• • _ ac k o:Daz l..x:a - - L -[ ,h; • .. �.� 'v Ci P - , � i ���eX ' .. R " r• '` - NAME • MA a F 'z .. CF DEVELOPMENT: ei ft.. t . . - . a _ - . s . t i. 5.. DATE: Q - • 0 I DEVELOPMENT ADDRESS: 'LS •.... S -3t I PERMIT NC.: j t - 1 � l � 1' '~' �' r • ' ::%;."-: CASH ASSIGNMENT NAME: G EL(.„ - 43}. an 5E A TEL LOPE 1. TEL NO. (y ZS) 2.7.7,- •5z.iS DEPARTMENT HEAD: ( '`•' i SHALL BE :VC� BY Y MAILING G TO TO; ADDRESS: 23 1, IA) I) A1} N Sou Tywes r L- --- _.. (please print) CrrYSTATErZIP E .l1-D A) LA) tr - srrDC 5 '• 0E OF I TO BE CCMPI.E • (REFERENCE Pr N •. M =. /16 .r.FP u AA • :1 c r r 1 RECEIPT No. R 1 . J z• `i I -- T-rl a.\.Q.1,on a.nd a.cr... r.� \04 T La t e+.s LueJ, cL ' _ Mont) r, - .- n 0 f& , ( •n.a.. _' 0'0 r D . 2 • A Cc e gfar :i 1nSta- , u,Ti.on As tit owner, or authorized agent of the owner, 1 hereby submit cash or cash equivalent in the amount of 3 H r (v 5o • cx) (s15o% of value to complete work described above) and attach supporting ' > ; . dcc 1mentation for value of work. I will have this work carried out and call for a final inspection by this date: ( t Z / .3 I / (D... ), or risk having the City use theca funds to carry out the work with their own contractor or in -house manpower. If 1 fail to carry out the work, I hereby authorize the C ty to go onto the property to carr/ out completion of the above deficiencies. I further agree to c.o ete all wo isted above prior to requesting Inspection and release of these funds. SIGNED: S r For 1 AN A l LOp52_ TITLE; G Eo t-,,4lelEW it-5 6 FD L0 Li s r P i WED i• ^. 05 FAX 425 861 6050 GEO ENGINEERS 03 : AM TUKWII )CD /R4 ■+t « "%Tem P.3,3 X1 005 DEVELOPER'S PROJECT WARRANTY REQUEST FORM it r. I. . A ' •S�' • e ` mac• „ ^:.. and found it aoeptable and therefore ve cash assignment. I have revieweid the above wo authorize th (ease of t AUTHCR�D eY:CB t b ARTMENT: ;22( 72 HOUR NOTIFICATION FOR INSPECTION AND RELEASE OF FUNDS DEVELOPERS REPRESENTATIVE: Upon completion through Section 2. Finance personnel shall send ccDles ;o: - Developer - Finance Department - Permit Coordinator. DCD All work identified in Section 1 of this form has now been completed, and returned to department which authorized warranty. I hereby request inspection and release of my cash/cash equivalent DATE; • • i �• • CASH CASH EOU1VALENT - LEI 1 eR AUTHORIZING RELEASE Crrf CI•iECIG NO. _30SSI1 P.ELEASED'MIS DATE: c • I1 I b14 PEL *.SED B Vv1 ANCc DEPT. Upon completion of entire form, Finance personnel shall send =pies to: - Developer - Fhhance Pepattrnent - Permit Coordinator. DCD - • rv�n;::' ti:"' r' vre:.:x..e1 ";:;^::yx^>'+.vemyty F.x3�.T .;re?+; <cu' :elan ^i'�q csan2410 THIS FUND IS AU OAIZED TO BE ACCEPTED. 1 � l � 1' '~' �' r • ' ::%;."-: • SIGNED: c: 06 z.'(, 1, ' Y �• k DEPARTMENT HEAD: ( '`•' i AMOUNT: '-} ,(e5 ©. DO 5,1CASH l CASH EQUIVALENT DEPOSITED THIS DATE: ! 0 - Li - 0 I c r r 1 RECEIPT No. R 1 . J z• `i I RECEIVED BY: hctirn C ( „ f "" WED i• ^. 05 FAX 425 861 6050 GEO ENGINEERS 03 : AM TUKWII )CD /R4 ■+t « "%Tem P.3,3 X1 005 DEVELOPER'S PROJECT WARRANTY REQUEST FORM it r. I. . A ' •S�' • e ` mac• „ ^:.. and found it aoeptable and therefore ve cash assignment. I have revieweid the above wo authorize th (ease of t AUTHCR�D eY:CB t b ARTMENT: ;22( 72 HOUR NOTIFICATION FOR INSPECTION AND RELEASE OF FUNDS DEVELOPERS REPRESENTATIVE: Upon completion through Section 2. Finance personnel shall send ccDles ;o: - Developer - Finance Department - Permit Coordinator. DCD All work identified in Section 1 of this form has now been completed, and returned to department which authorized warranty. I hereby request inspection and release of my cash/cash equivalent DATE; • • i �• • CASH CASH EOU1VALENT - LEI 1 eR AUTHORIZING RELEASE Crrf CI•iECIG NO. _30SSI1 P.ELEASED'MIS DATE: c • I1 I b14 PEL *.SED B Vv1 ANCc DEPT. Upon completion of entire form, Finance personnel shall send =pies to: - Developer - Fhhance Pepattrnent - Permit Coordinator. DCD - • rv�n;::' ti:"' r' vre:.:x..e1 ";:;^::yx^>'+.vemyty F.x3�.T .;re?+; <cu' :elan ^i'�q csan2410 Memo To: Laurie Anderson From: Brenda Ho Date: January 28, 2004 Re: Olympic Pipeline Development Refund Please refund the $4,650.00 for the installation of wetland and wetland buffer plans, including monitoring and maintenance for land use permit L01 -004. Per e-mail from Nora Gierloff, the requirements have been met and the funds can be released. I have enclosed a copy of the original receipt and Developer's Project Warranty Request Form for your reference. Please make the check out to: Olympic Pipeline Development 2319 Lind Avenue SW Renton, WA 98055 Please send the check to my attention and I will forward it to them. Thank you. Xc: File No. L01 - 004 1 City of Tukwila Permit Center • . �� � 1/ R'^ ;.731 . •1l: ^ Y` . 1. „�, ).: �'..i. .lit:li��4•:� p ar •00.1/ I .. I . . v4 ' '�` ■ ^ y Y l�' L. ) ' 1 .. - - '3C f71i"A:IBh` i H Ir �c�^ '_� �; �SC � � _` !G:��:� . . : •. ": ZI"- n.. � ,` .'Y . r, e ; NAME OF DEVELOPMENT: 01 .1 I . - N - , .. 1. • . DATE: 0 - -. 0) PM DEVELOPMENT ADDRESS: 1.3 S t{-Zr V PERMIT NO.: L I - CASH ASSIGNMENT NAME Gl?L(, - ► , (.05F A ra opEZ. TEL NO. Li 7.5 Z'L7r -5:�3 z _ � SHALL BE T O : ED BY MAILING G TO: ADDRESS: 23,1 L r /v D AVet V F Sou mH w Es T' L--_____ (Please print) CITYISTATEfZ1P E "1'0 N W yD OESORP110NOFI 0 TO BECOMPLETE' (REFERENCE 5 - T-f1 - SA - 7aAQti. _ • . a.. . a41 . t an btx t` r La. (As L1e.1 cot ' onta n . - n 0 ti t 'na, ' Po c at 2 41 CL • • r _ • 1 f15 a- t a Lon r. . t i As the owner, or authorized agent of the owner, I hereby submit cash or cash equivalent in the amount of 5 M tv Sc . c.) (515o% of value to complete work described above) and attach supporting ' s ,, ., docrmentation for value of work. I will have this work carried out and call for a final inspection by this date: I z- ! .3 (, / C ), or risk having the City use these funds to carry out the work with their own contractor or in -house manpower_ If l fail to carry out the work, l hereby authorize the Cry to go onto the property to carry out completion of the above deficiencies. ( further agree to co- I- ete all wo above prior to requesting Inspection and release of these funds, SIGNED: S r F R4S6 AN Ai Lop E 2_ TITLE: 6 E0 t/u41vi Ea0S 6 6.0 G4 4 /S T , •.r ... •,-. . .... ....- . - -:•, .-. ...... ..:. _ .. , — _ ......... -S ....:... .: .. ...... _ ---• .. . - ....�..,,- ,>- >....,. ,— z-- .- ';x.+»n,.....,, .a,.•w,. .cox 10/03/01' WED 12:53 FAX 425 861 6050 GEO ENGINEERS OCT, 03 01 AM TUKWIL )CDiPW 1.rlly VI • ft>rvme. P.3 /3 005 DEVELOPER'S PRO4EOT WARRANTY REQUEST FORM v xcs mittIL il 1 i • ...�. ... .... >.. .� . �,., . __.._...>._ • crrI RECEIPT No. - RIsq ' i z 9 f DEvELOPER'S REPRESENTATIVE Alit 8 ,o. 72 HOUR NOTIFICATION FOR INSPECTION AND RELEASE OF FUNDS RECEIVED 8Y:' r All work identified in Section 1 of this form has now been completed and returned to department which authorized warranty. I hereby request inspection and release of my cash/rash equ DATA: • �r.� t; : - it..? ' �: „ grist - r .1." ,�: _ have review • the above wo and found it a eptable and therefore .. .. ° � thorize th ease oft+ _ ' eve cash assignment. CHECKED HY: AUTHORED HY :(t� , DEPARTMENT: �('�Q . ....«n...- c...._.._..._..<...w .. ^- --r• -. , � M _.. ,.. ... . ... .. .. , x..., .r.. .. ...,n.'.�em.. ..I ,._�.,....,. .. .►■••• �.. ui:+.,...r,.., �o.. ,.._. +ti..,.:.,... -...� - r - , •>. , :.�ra�.r.'- , :.�»..> ..... .,„,.�.:Ic siGNED: G eL AMOUNT: 4 , (e50, OO CASH CASH •. �: % S I Lwx.i�� n - „Ili.{ 1 j CASH EQUIVALENT -LETr FI AUTHORIZING RELEASE CITY CHECK NO. CASH EQUNALENT Upon completion through Section 2, Finance personnel shall send coDles 10: - Developer - Finance Department - Permit Coordinator. DCD THIS FUND 1S AUTHORIZED TO BE ACCEPTED. DEPARTMENT HEAD: DEPOSITED THIS DATE I 0 - L AMOUNT: RELEASED THIS DATE: RELEASED BY: - Upen completion of entire form. Finance perznnel shall send copies to: — Developer — Finance Depanment — Permit Coordinator. DCD , x.�X+, <NNE ?7,+ ^e +�' °Zt�axraAn TY^' n zar K.,t .,^�,'k'+. , : °. .,1� r�'�..."' n„ c � •,r ....::y�.'.'.�.: . i� . �rr .. , FINANCE DEPT. a o t - Bon • Re ease __ . . __ ..._ Pagel } From: Nora Gierloff To: Brenda Holt Date: 01/23/2004 4:00PM Subject: Bond Release I have received a final inspection report for the wetland mitigation required for the rerouting of the Olympic Pipeline, permit L01 -004. The work is complete and the bond can be released. Nora Gierloff Planning Supervisor City of Tukwila DCD (206) 433 -7141 z Z; ce 00 CD cow! J F W O. LL = d . � W Z � z O - O I- W W , =U O Z W H �. 0 Z '10/03/01 . WED' 12:51 FAX 425 86i - 4050 GEO ENGINEERS Geo �Engineers MEMORAND UM TO: FROM: DATE: FILE: SUBJECT: Steve Lancaster, City of Tukwila Rose Ann Lopez (OPLC) and Boyd Benson ( GeoEngineers) October 3, 2001 0894 -099 -01 Expanded Work Area at North End of OPLC South 1110 Reroute 8410 154 Avenue NE Redmond, WA 98052 Telephone: (425) 861 -6000 Fax: (425) 361 -6050 INTRODUCTION The purpose of this memo is to summarize planned activities associated with the proposed work area expansion at the north end of the OPLC South 180 reroute in Tukwila Washington. This memo was requested by Gary Schulz, Deborah Ritter, and Robin Tishmack of the City of Tukwila during a site meeting with OPLC, GeoEngineers, and Plem Co representatives on October 2, 2001. We understand that the City of Tukwila will commence construction of the planned South 180 Grade Separation within the next few months. The location of the existing OPLC 14 -inch diameter petroleum pipeline conflicts with the planned grade separation activities. OPLC has completed a directional bore to replace the section of pipeline in the vicinity of South 180 Street. The bore is approximately 1,300 feet Iong and is located near the west edge of the Interurban Trail. The bore extends from an entry pit work area located approximately 600 feet south of South 180 Street to an exit pit work area located approximately 600 feet north of South 180 Street. PLANNED WORK AREA EXPANSION The north work area is currently 100 feet long (north - south) and 50 feet wide (east - west). The work area extends from the east edge of the Interurban Trail to the west edge of the OPLC easement (see attached figure). The north work area is located within buffers of several previously mapped Type 2 Wetlands. The work area and wetland areas are shown in the June 25, 2001 Jay Group report titled "Wetland Buffer Impacts and Mitigation Plan for the Olympic Pipeline Company Tukwila Bypass Bore Project." Additional area is required at the north work area to connect the new pipeline segment into the existing line. The additional work area extends 25 feet north and 55 feet south of the existing work area (see attached figure). The additional work area will add 4,000 square feet to the existing work area, for a total work area of 9,000 square feet. Much of the work area is located within an approximately 20 -foot wide ditch along the west edge of the Interurban Trail. Based on conversations with City representatives during our October 2, 2001 meeting, the additional work area is located within Type 2 Wetland Buffers and Wetland Areas. However, much of the vegetation within the wetland and buffer areas include non -native plants such as scotch broom and himalayan blackberry. Erosion control, including silt fence and straw bales, will be installed at the limits of the work area as summarized in the July 30, 2001 GeoEngineers report titled "Geologic and 0002 " 10/03/01 WED 12:52 FAX 425 86? ^050 Memorandum to Steve Lancaster October 3, 2001 Page 2 GEO ENGINEERS Geotechnical Assessment, South 180 Street Bypass, Tukwila Washington." Efforts will be made to minimize construction impacts within the work area. PLANNED MITIGATION MEASURES The areas disturbed by activities associated with construction of the OPLC reroute will be restored to their pre - existing function and values or better. The plan outlined in the June 25, 2001 Jay Group report titled "Wetland Buffer Impacts and Mitigation Plan for the Olympic Pipeline Company Tukwila Bypass Bore Project" will be followed for the restoration activities. The restoration activities include: • Grading and restoring the ground surface following completion of the construction activities. • Identifying and mapping areas impacted by the reroute activities in conjunction with the City. • Developing a planting and restoration plan in association with the Jay Group and the City. • Implementing the planting plan with final review by the City. • Implementing a monitoring and maintenance plan for a 2 -year period. • Providing a report summarizing the restoration and revegetation. We expect that the planned restoration and revegetation will improve the function and values of the site. Non -native plants, including scotch broom and himalayan blackberry, present within the work area prior to construction will be replaced with native vegetation. In addition, the City has requested that excavation activities be completed to open up a water flow constriction within the ditch along the west side of the Interurban Trail within the work area. Removal of the constriction should improve north -south water flow within the ditch and wetland area. We understand that the City of Tukwila is requiring a financial security to assure that the planting, maintenance, and monitoring of the plantings is completed for a period of two years. Based on our discussions with the City of Tukwila, we estimate that the cost of planting, maintenance, and monitoring will be approximately $3,100. This amount includes: • Planting (30 plants at $50 per plant): S1,500 • Monitoring and Maintenance (2 years, 10 hours/year at $80/hour): $1,600 TOTAL $3,100 A Developer's Project Warranty Request Form and check for $4,650 ($3,100 plus a 50 percent contingency) will be submitted to the City of Tukwila within the next few days. Please call Boyd Benson at (425) 861 -6079 or Rose Arm Lopez at (425) 227 -5213 with any questions. 0003 AP PitomATE APVto %Jou SC 'If Co' ADPerwin 25'050 ADDito/M. Wilt AUA ifasitIt MIA 0 In co r briPf 2 wintitio s' 1, s 5 : 1 0 WOR AREA LIMIT EX( T1 50' WIDE x 100' LONG mfgaimATE L ATHA oF WORK AREA 010 Piff SOMIAIT s. 13+00 IrArAr AirAiliaIWrittu r oA d rA .:. ,, 6,!■!---- • -.:-.:...,:_ _0;4 i Ei Amigt..- . rarAir " ..' ' - ...:..:. :::: - • • .. -* p AptArA . , • ' Anniltrall WAIllitai I ir O d i mco a ou a v _ 1.1111rAINIINI tr. .. I . ....._ . . ..c. : , ..: ..-. 4 It E ri • - ......•..._ .. 4 w, 412051 ka ArrArAwArA 12+00 S o I it ..1- • • • - pi • - • - . . --••• _........_ - • • • -- • •• • ___...... . . . . . ••• .• • _ •• • • • • . •• S VCIST ?Itet•iNE - - - • - - • - •• • . • - - N." . --•- • - .• • • • • --• •• •- -• •. : _ • •• •• • •- .• • - • • -•■ • ..... -..• • • • _ •_ • • • " .•._ •, _ • ••- •• • • •, • • •.- • -, . so . . . • z • z w • 2 -J 0 : 00 co 0 W • I L. w 0 LL. • I a w Z I— 0 Z W w 0 C.) O — O I— W ui I L I 0 Z u- 0- o - 1— z • 01 /04/01 THU 14:50 FAX 425 86', . A050 Geo i Engineers FAX TRANSMITTAL To: 2E? f4 rr-rag or- TvlL& ?L. A FAX Number. Attention: Regarding: Pages L Total Pages: Date Comments: Qv tz h loo 1 y Q „ r t2 C2 a 3) - 3 66 5 eR rrTE 2- Papeosm PLL- $y9ASS — Description aro%) (5 Cfo feS«Jl et- lcS,potse .• `6S°F ;,,AD 4 om colt, w•orro� I f 610 ) O4 O C 61 g.T QoasT Fog- R- ofo »AL Fp-oe614L Flory NW/ G,(Lo"P a t.--Lo rite-12. rnv C ro r rtl�.�` yv,i Sc.►o� -F��� t r►.�u �;�Q GEO ENGINEERS S o Signed: era File: • Date: o ., SAP so L t) b� P 'CgfG C owt et.4 - s 8410 • 154th Avenue NE Redmond. Washington 98052 Telepnone: (425) 861 -6000 Fax: (425) 861 -6050 (Wt. I D1r7q 0 r0 o5�c�G , . '714 t S C. We la DISCLAIMER This facsimile and any attachments are confidential and intended solely for the use of the individual or entity to whom they are addressed. X 001 �T� ✓•vr' . i � a � ._'.���`— `y'!�x vt..•ne1,RJtiJU: lf�i`ahRR 57� cc: Gary Schulz City of Tukwila MEMORANDUM TO: Robin Tischmak Greg Villanueva FROM: Deb Ritter"'9...� DATE: January 5, 2001 RE: Olympic Pipeline Bypass and associated construction work in wetland buffer at South 180th Grade Separation SEPA (E2000 -029) Steven M. Mullet, Mayor Department of Community Development Steve Lancaster, Director Attached is a copy of the RFP issued by GeoEngineers (acting as agent for Olympic). This RFP covers the wetland buffer work, revegetation and maintenance. As I indicated in my December 8th memo to you, we will be supplied with a detailed wetland report by the end of January. Once Steve Lancaster has reviewed and approved the wetland report for compliance with the Sensitive Areas ordinance, he will issue written approval to work in the wetland buffer. The Franchise Utility Permit must contain the conditions of approval pertaining to the Sensitive Areas ordinance. These conditions will be listed in Steve Lancaster's approval letter discussed above. I will provide you with copies of pertinent documentation as it becomes available. Please contact me with any questions. •.., h' tTilk3sS4.':x1"�.'.c.f�sSR;.�- '.�,,� e5- L�.:r, 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 PUGET SOUND ENERGY February 22, 2001 Ms. Rose Ann Lopez Olympic Pipe Line Company P.O. Box 1800 Renton, WA 98057 1CJ V to RE: PSE RAW — Tukwila Realignment of Gas Pipeline Dear Ms. Lopez: Enclosed as requested is the affidavit of ownership. I have sent the construction drawing I received from GEO Engineers to various internal individuals that would have an interest in what your company is proposing and am waiting for their comments. i have asked them to expedite your request and will let you know as soon as I hear back from them. If you should have any questions on this matter, feel free to contact me in Bellevue at 425 462 -3029. Very truly yours, Wayne Bressler Corporate Facilities Department Puget Sound Energy, Inc. • P.O. Box 97034 • Bellevue, WA 98009 -9734 .._':.`:ii.: .. ; fur.:_. 51:..t�., :.,c..5sofi:u�•;i.1L:t cs3?.: , ...�fr %,;i.:?''- : ?:.- «r�,l:tiat i«..,;.,?: :�is:s..tiY,.�_fi�;t:i':i::i'd"v �w Wetland Buffer Impacts and Mitigation Plan for the = z Olympic Pipeline Company LLI Tukwila Bypass Bore Project 6 0 . UO : W = J W • O 2 J GeoEngineers cn ▪ d 8410 - .154 Avenue NE Redmond, WA 98052 z O Phone: (425) 861 -6000 w w U • O 'O = O H w w I - O Project Engineer: Fax: (425) 861 -6050 Prepared By: The Jay Group, LLC 1927 Fifth Street Marysville, WA 98270 Phone: (360)- 659 -8159 Fax: (360)- 651 -7252 June 25, 2001 RECEIVED CITY OF TUKWILA 'JUN 2 7 2001 PERMIT CENTER .• z w — O H z NOTICE: IF THE DOCUMENT IN THIS FRAME IS LESS CLEAR THAN THIS_NOTICE IT IS DUE TO THE QUALITY OF THE DOCUMENT. Introduction This report is prepared for the purpose of mitigating possible impacts to wetland buffers caused by the re- alignment of a petroleum pipeline owned by the Olympic Pipeline Company. This project is part of a larger project consisting of grade separation and road alignment at the intersection of South 180 Street and the Burlington Northern Santa Fe and Union Pacific Railroad tracks in the City of Tukwila (see Figure 1, Vicinity Map). The pipeline as it now exists is being re- located in the project vicinity to allow the grade separation project to be constructed. Activities associated with the proposed pipeline bore project may impact wetland buffers. It is our understanding that these activities will not be completed within mapped wetland areas. This report is intended to identify the vegetative communities in the potential project impact area, with the goal of providing a method of assessing project impacts and restoring the area to pre- construction conditions. Federal, state and local regulations govern activities in wetlands and their buffers. This report is intended to facilitate compliance with applicable regulations following review by the appropriate regulatory agencies. Depending on the final project scope and jurisdiction, specific permits may be required. Regulatory agencies with jurisdiction should be consulted prior to construction to ensure that all their requirements are met. Site Description For the purposes of this report, the project area is defined as an approximately 26,100 square foot area surrounding the bore exit pit and junction point between the existing pipeline and relocated pipeline sections. This area is located west of the railroad grade, immediately adjacent to the west side of the Interurban Trail. Topography of the area is generally flat, with the exception of the railroad and trail grades, which are elevated. Several wetlands have been previously identified and delineated by Berger /Abam Engineers, Inc. and Herrera & Associates, Inc (Berger /Abam Engineers, Inc. 1999), as shown on the Site Plan, Figure 2. The wetlands most closely associated with the project impact area at the bore exit pit are Wetland A and Wetland D. Wetland A occupies the area east of the Interurban Trail, between the trail and the Union Pacific Railroad. Wetland A meets the criteria to be classified as a Type 1 wetland per the City of Tukwila Sensitive Areas Ordinance, Chapter 18.45. Wetland D lies west of the Interurban Trail, between the trail and the developed commercial property to the west. Wetland D meets the criteria to be classified as a Type 2 wetland per the City of Tukwila Sensitive Areas Ordinance, Chapter 18.45. The planned 50' x 100' bore exit work area is located north of Wetland D and west of Wetland A. No activities are proposed within the mapped wetland areas. For the purposes of this study, a reference point was marked adjacent to the Interurban Trail immediately east of the proposed exit pit (see Appendix A). The study area extends 150 feet to the north and south of this point, on both sides of the trail. The study area extends approximately 50 feet east and west of the reference point, to the toe of the Union Pacific Railroad grade to the east, and to a fence at the western edge of the Interurban Trail right of way to the west. Field investigation conducted by The Jay Group, LLC on January 5, 2001 confirmed the classification and delineation of the wetlands in the immediate vicinity of the exit pit study area. Vegetation in the area consists of scrub /shrub vegetative communities dominated by Pacific willow (Salix lucida var. lasiandra), Himalayan blackberry (Rubus procerus), Reed canary grass (Phalaris 2 41 arundinaceae) and Common cattail (Typha latifolia). Scattered Sitka willow (Salix sitchensis), Oregon ash (Fraxinus latifolia), Bentgrass (Agrostis sp.) and Field horsetail (Equisetum arvense) were also present in the area. Vegetated areas of wetland are interspersed with patches of open water. There are no forested vegetative communities in the study area, and no associations of rare or unique wetland or buffer plants. The proposed bore exit pit is located immediately adjacent to the west side of the Interurban Trail, in an area of wetland buffer dominated by Himalayan blackberry and Reed canary grass approximately 18 feet west of the reference point. According to best available information, the existing pipeline runs parallel to the Interurban Trail approximately thirty -one feet to the west, within the west buffer of Wetland D. The junction between the existing and relocated pipeline may pass through a small area of open water, north of the mapped boundary of Wetland D. Standing water outside the wetland boundary is likely a result of seasonal precipitation events. The area northeast of the reference point is dominated by Pacific willow, Sitka willow, Reed canary grass, Common cattail and Himalayan blackberry, with approximately 40 percent open water. Shrub coverage in this area is provided by the willows and blackberry at approximately 40 percent areal cover. Cattails, grasses and other herbs provide the remaining vegetative cover. The area northwest of the reference point is dominated by Reed canary grass at 30 percent areal cover, Himalayan blackberry at 20 percent areal cover, and Common cattail at 20 percent areal cover, with approximately 25 percent open water. This community type extends approximately 100 feet north of the reference point, at which point Pacific willow begins to provide significant areal coverage. The area southwest of the reference point is dominated by Reed canary grass at 40 percent areal cover and Himalayan blackberry at 35 percent for the first 50 feet south of the reference point. Pacific willow then begins to dominate, interspersed with patches of open water and Common cattail. The area southeast of the reference point is dominated by Pacific willow at 60 percent areal cover, with an understory of Reed canary grass and Himalayan blackberry at the edges of the wetland, with approximately 30 percent open water in this area. Figure 3 illustrates the vegetative communities present in the study area, as well as their relative areas and positions in the landscape. Project Impacts and Proposed Mitigation Due to the nature of the proposed project, the precise location and extent of site disturbance will not be known until the actual boring takes place. The purpose of this report is to characterize the vegetative community types in the area of possible disturbance, develop a preliminary plan to mitigate for any temporary damage to wetland buffers, and develop a conceptual revegetation and maintenance plan. The site visit conducted by The Jay Group, LLC on January 5, 2001 identified the vegetative communities present in the project area and the species composition of these areas. Likely impacts from the project will be limited to the area immediately surrounding the bore exit pit, and the excavation required to join the existing and relocated pipelines. Vegetation that will be disturbed by this activity consists of Himalayan blackberry and Reed canary grass, both considered invasive exotic species. There is a gravel and grass covered access tongue extending more than 50 feet east of the trail that will provide parking and turnaround for trucks and equipment. Utilizing this area will minimize impacts from site activity on surrounding vegetation. Mitigation for unavoidable construction impacts to the area will consist of the following steps: 3 4 - 1.P.0,2.1147Lie z Q I = ~ w O 0 � 0 cow J = I -- U) u_ w � � • w z = zI- • 0 0 0- 0 I-- wW L I:o ..z w = O z 1) a post construction inspection to identify the limits of disturbance; 2) determination of the vegetation types damaged by construction; 3) developing a final planting plan to restore the vegetation to a pre- construction or better condition; 4) installation of restoration plant materials; 5) monitoring re- planted areas to ensure successful establishment; and; 6) adjusting or implementing contingency plans based on the success or failure of the restoration plantings. Conceptual Revegetation Plan The proposed project may impact wetland buffers. Field assessment of the project area resulted in the identification of two vegetative community types: scrub /shrub and herbaceous. The buffer scrub /shrub community is dominated by Himalayan blackberry (Rubus procerus) and Scot's broom (Cytisus scoparius), with an understory of Reed canary grass (Phalaris arundinaceae). The herbaceous community is dominated by Reed canary grass. Disturbance to the buffer plant communities will be mitigated by restoring the area to pre- construction condition or better by planting: 1) Pacific willow, 1 gallon container size, 18 -36" height; and 2) Hydroseeding the disturbed area with a suitable wetland grass seed mix, such as Barclay's Low Growth or DF Marks Standard Wetland Mix. Willows planted from cuttings may not survive in the drier buffer environment when planted in early summer. Container plants offer a higher likelihood of success. Hydroseeding in buffer areas is for erosion control and ground cover establishment. Re- vegetation of the buffer areas disturbed during construction will likely result in a more desirable plant community becoming established, since the area is currently vegetated with non - native, invasive plants. Post - Construction Monitoring Monitoring of the mitigation plantings will be necessary to ensure that the re- vegetated areas meet performance standards for survival and areal coverage. Two site visits will be conducted. The first will take place immediately following re- vegetation of the disturbed areas to ensure that plants were installed per plans and identify any possible problems at the earliest possible stage. Monitoring at this site visit will include visual inspection of plants to verify species, quantities and general health and vigor of plantings. The next site visit should occur approximately 3 months after construction. Monitoring at this site visit should include assessment of survival rates, species composition, and percent areal cover. The precise monitoring schedule will depend on the time of year the plants are installed. If the plants are installed in the fall, the second monitoring visit should be delayed until the start of the growing season the following spring. The specific monitoring schedule will be developed with input from the City of Tukwila. Since the goal of this project is to restore any disturbed wetland buffer areas to pre - construction (or better) condition, specific performance standards for re- vegetation will depend on the nature and extent of disturbance. In general, performance standards will address survivability and percent areal coverage of planted vegetation. Greater than 80 4 in: kk+• eu.. tia: 5:a`, idX[` d. Okii. is`.F3's3— '.+'�.e'`'"�'�-S'�''' . " '7a, Conclusion percent survivability is a generally accepted standard, subject to modification depending on the specific vegetative community type affected. Specific standards will be developed with guidance from the City of Tukwila. Due to the nature of the plant communities likely to be disturbed (invasive non - native species), it is likely that the proposed project will result in an increase in the functions and values of the sensitive areas and their buffers. This preliminary mitigation plan addresses anticipated impacts associated with the proposed pipeline relocation project and provides a conceptual revegetation and maintenance plan. At this stage of the project, it is not possible to know the full extent of impacts to the wetland buffers. Every effort will be made to avoid and minimize these impacts, and compensatory mitigation in the form of restoration will be provided for impacts that are unavoidable. This mitigation plan will be amended and modified as necessary to achieve these goals, as per direction from the appropriate regulatory authorities. 5 List of Figures Figure 1: Vicinity Map Figure 2: Site Plan Figure 3: Map of Vegetative Communities in the Project Area '+..,:.f Wav:: a:,.:::s vn,.c,..wLY.i • J.\ Figure 1: Vicinity Map bhrlryng ' • 71 Pal' • • V , P.•A 4A.!! N aminti s , NI 7 . : • "6 ' I l• "Tukwila . 1::•414 -1 1r. .„, . _.... T. t . i I Project ....-4./ . i 1 t ' • Orilli Pil • &ALAI - it. "41 4,.. \ ' '''N,ig 1. - ,r ..., •• • ., ..,,,,,.....2) Oi .. ":“ ••••••-•--,-- ..,...„ii • r-a , ; Vi :. • - e.- .4-" [ft 1,.• •,-..1 Al ..,, 1 - I . o.:! , - • '. . 4 . i ti, -• --- . 1..1 ,, Ma oh, - gylight1. 1 I '4,473 _ilk. 1 • l i ! I. \•,--; u z 7 • • • ' Figure 2: Site Plan (not to scale) z a ceLAr 6 J0 U O, co U) W= i. • w0 u.Q to I a; w Z I-0; z1- W W:. UO. F W w f, = z 30.o...t .0.010 ■.G 11 0 1 : 4 1 11 II 1.61IlL 3 MEM 11111111111111a lAir I AlMirrrthi 4 1 k ... 0 II 0 I II I MIN III I _• ! ■ �� =--a�� ■ ►fir= l���1�iJ ' �"�... -°s�" l 9 1 " M ri l e i r St it! =C-U•1101VV.2213 r 0 N7411 NOTICE: IF THE DOCUMENT IN THIS FRAME IS LESS CLEAR THAN THIS NOTICE IT IS DUE TO THE QUALITY OF THE DOCUMENT. rc_M sm. cc_w 34.11N Figure 2: Site Plan (not to scale) z < • =Z :~ W - 0 O 0 c0 u)W J F- U) LL WO g • d I-W Z= I- O zI- W W 20 00 0 O N O I- W W u'O Z W Z Figure 3: Map of Vegetative Communities in the Project Area (not to scale) +n,�v T• -u. �;rt:�x2 ;�erivw..rwwen'yuM• • : -.• .�. --- ..�•••••!L.'.Sk�C'�...., . 9 z 6 •JU" UO • cDW W= J co LL O = O I . W Z F... •I- O: luta Z I-; • .0 0; O N: �I- W .2 I-U; u: U a)- 0 ▪ FT z r PACIFIC WILLOW _ ■Ritt.LONN p p1/4Cif ‘t• v v WETLAND D BOUNDARY OPEN WATER S WETLAND A BOUNDARY PACIFIC WILLOW PACIFIC WILLOW OPEN WATER PACIFIC WILLOW PACIFIC WILLOW PACIFIC WILLOW PACIFIC WILLOW pp,civic vjlt.L.OW /41111111. - REED CANARY GRASSIHIMALAYAN BLACKBERRY REED CANARY GRASS/H S - 1011.1.•11.../10.. /MEM.. REED CANARY GRASS (MOWED) APPROXI HIMALAYAN REED CANARY GRASS/HIMAL ST1 z I I- Z 2 —I 0 O 0 CO 0 W W w 0 • i fj < CD 3 I— • LI-I Z I- 0 Z W w 0 • 0 O 2 O 1- w u- 5 co z 0 co -± O I DT'S BROOM FROXIMATE EXIT PIT STUDY AREA BOUNDARY U U SCOT'S BROOM REED CANARY GRASS PACIFIC WILLOW REED CANARY GRASS/HIMALAYAN BLACKBERRY REED CANARY GRASS (MOWED) SITKA WILLOW HIMALAYAN BLACKBERRY CATTAIL OPEN WATER OPEN WATER PACIFIC WILLOW OREGON ASH -am 111111111111P. ■■■•1111. ■•••-•'" - ' • - -- CATTAIL PACIFIC WILLOW INTERURBAN T OPEN WATER OREGON ASH R-ED cP.3 RY GRASS/HIMALAYAN BLACKBERRY ANARY GRASS/HIMALAYAN BLACKBERRY (MOWED) IIIII4!551f11616c; .'41/41Pmw. - REFERENCE POINT LOCATION , NORTH * Figure 3: General Vegetative Community Locations APPROXIMATE SCALE 1:20 < • • 1 Z 6 O 0 CD 0 W W -j SQ LL W O 2 g • < • a Z I— 0 Z uj O • F- 0 u j Lii O Ci) i= I— NOTICE: IF THE DOCUMENT IN THIS FRAME IS LESS CLEAR THAN THIS NOTICE IT IS DUE TO THE QUALITY OF THE DOCUMENT. Appendix A: Pre - Construction Site Photos Southeast View from Reference Point Northwest View from Reference Point z • w JU 00 co o C)) J f LL w 0 5 < 2 d I- w Z I I- O Z I— ww :I U � 0 22 ci w W I I H LL. r .. z w — I O z 2 r2_ ! gasrrn. r: Southwest View from Reference Point East View from Northeast of Reference Point Z F- W JU 00 CO 0 CO W = H W W U_Q W Z = 1- I— O Z1- w w 0 O - O H W U- Z w • = O • 1- Z West View from Northwest of Reference Point Northeast View from Reference Point Z ~ • W Q J U O 0 • Cn CO UJ W W • O _ ua W Z = I- O Z I- w U 0 O C O I-- w W " - - O .Z w U= 1 o -. O Z MEMORANDUM TO: Deb Ritter FROM: Robin Tischmak eR DATE: June 15, 2001 SUBJECT: Olympic Pipeline Relocation @ S 180' St z in 0 0 • co 0 � w z J H N LL I believe that the attached document is satisfactory, for the City's purposes, to establish that the 2 applicant has been granted the necessary rights by the property owner to construct the proposed g project. While the rights are temporary, permanent rights will be granted after the project is complete. U a T underlying property owner has acknowledged and granted use of the property as requested by the H applicant. 1— 0 Z i— If you have any questions or need additional information you can reach me at ext. 1635. LLI n 0 co U .0 — 0H I I-- g: 0 .. Z W = 1 7 : F I have reviewed the information submitted by the Olympic Pipeline Company regarding property rights associated with the above mentioned pipeline relocation. attachment: Letter Agreement Z 4. PUG ET SOUND ENERGY June 14, 2001 Mr. William A. Mulkey Olympic Pipeline 2201 Lind Ave. SW, Suite 270 Renton, WA 98055 RE: LETTER AGREEMENT co 0 PIPELINE RELOCATION PROJECT -SOUTH 180 STREET w =: J w O. g Q = S z 1 , 1) As a result of the City of Tukwila lowering South 180 S BP is being required to lower a w O portion of its petroleum pipeline, that runs under South 180 Street, which is located along the westerly edge of PSE's 100 foot wide fee owned corridor known as the Puget Sound Electric U 0 Railroad Right of Way. O P 0 1- 2) PSE granted an easement to Olympic Pipe Line Company under document dated June 18, = w 1965, and recorded under King County recording No. 5905398 for the construction, operation and F — `' maintenance of the pipeline. u z . 3) BP is requesting PSE's accommodation for temporary working space during construction for v assembly of approximately 1,300 feet of pipeline, and acceptance of the new alignment of the 0 relocated pipeline. z 4) The construction is to be accomplished by a deep horizontal bore beneath 180 Street in the City of Tukwila. An entry and exit site bore pad and staging area, being 50' x 100' on the north and 80' x 150' on the south will be required for approximately 45 days on PSE's right of way. 5) A section of existing pipeline measuring thirteen hundred (1,300) lineal feet will be replaced with new pipe. Dear Mr. Mulkey: In response to BP /Olympic's (BP) request to relocate its petroleum pipeline, Puget Sound Energy, Inc. (PSE) hereby approves such request provided BP acknowledges the following Statement of Facts is accurate, and agrees to the following Terms and Conditions: Statement of Facts Terms and Conditions 6) The contractor, Geo- Engineers, will furnish the legal description for the required space and will manage the project as BP's geo- technical consultant. 1) Following construction, BP will restore the disturbed sites to current or better condition. 2) A portion of the pipeline, located in a restricted area, will be abandoned in place and the remaining pipeline will be removed in accordance with Section 4 of the current easement agreement with PSE and any disturbance to surface features or vegetation will be restored immediately to the current or better condition. 3) All terms and conditions of the existing easement will continue in full force and effect, and will also be in effect and applied toward the temporary working space for a period of 45 days, from Puget Sound Energy, Inc. • P.O. Box 97034 • Bellevue, WA 98009 -9734 z ZZ �w J U 00 t" f the date hereof, when at such time the right to use said space shall terminate. Although such use rights shall terminate, the provisions of the easement concerning indemnity and other issues not resolved by completion of the work and temporary use shall survive such termination. 4) A revised, as- built, legal description for the centerline of the relocated pipeline and easement area will be provided to PSE at no cost for PSE's review and approval. Following such approval, the parties shall prepare and record an amendment to the easement reflecting such revised easement area. 5) Compensation for the fair market value of the temporary construction use rights and any additional property that PSE approves for inclusion in the revised easement area or which is rendered less valuable as a result of relocation of the pipeline for the above - stated project will be jointly and fairly negotiated by the parties within ninety (90) days following the completion of the project. 6) If the amount of compensation cannot be agreed upon, each party will identify an impartial valuation expert who shall then meet with the other parties valuation expert and the two experts shall determine the amount of consideration. If they cannot so determine the amount, the matter shall be submitted to binding arbitration. BP shall bear all costs of such experts and arbitration unless PSE's last determination of value exceeds, by ten percent (10 %) the amount determined by the valuation expert or arbitrator to be owed by Olympic to PSE. 7) The project shall be constructed in accordance with the following plans and specifications drawn by GEO Engineers, titled: Figure 2 Site Plan South 180 Street, Tukwila, dated February 15, 2001; Figure 3 Proposed Pipeline Profile South 180 Street, Tukwila, dated November 17, 2000; and Figure 4 Interpretive Geologic Cross Section South 180 Street, Tukwila, dated January 30, 2001. These plans and specifications are attached hereto and by this reference made a part hereof. If BP agrees to the above Statement of Facts and Terms and Conditions, indicate so by having the appropriate individual sign in the space below and return to PSE in the enclosed return envelope. If you should have any questions on this matter, please feel free to contact Wayne Bressler in Bellevue at 425 -462 -3029. Very truly yours, Howard A. Strong Manager Real Estate Accepted and Agreed BP /Olympic BY: ITS: ( Ad -l2. 1244(44 J vJUA -/ June 19, 2001 Ms. Rose Ann Lopez Engineer /Project Manager Olympic Pipe Line Company P.O. Box 1800 Renton, Washington 98057 VIA FAX 425 - 271 -5320 Dear Ms. Lopez: Gity of Tukwila Steven M. Mullet, Mayor Department of Community Development Steve Lancaster, Director Re: Pipeline Bypass at South 180th Grade Separation Special Permission — Director Work in Wetland D Buffer (L01 -004) Your application for the above - referenced permit, including the Draft Wetland Buffer Impacts and Mitigation Plan (dated February 28, 2001, prepared by The Jay Group) has been reviewed. Under TMC 18.45.080(B)(2), construction of new essential streets and roads, rights -of- way and utilities may be permitted within a sensitive area or buffer with the review and approval of the Director of Community Development. Under TMC 18.45.080(C)(3)(c), disturbances to the buffer must be minimized, and after completion of installation of essential utilities, must be restored to pre - project configuration, replanted as required and provided with maintenance care until newly planted vegetation is established. Your request to work within the buffer of Wetland D has been approved subject to the following conditions: Submission of a Final Initial Wetland Buffer Impacts and Mitigation Plan to the City of Tukwila (stamped and signed by a landscape architect licensed in the State of Washington). 2. Issuance of a Franchise Utility Permit from the City of Tukwila. The permit will reference Conditions 3 through 9 of this Special Permission approval. :ssE x i_::i�'.Ld '�7x:�.it:;�;si. ;:1wS�iti''+�' ' �: ti+.`.,.:: asi� .°;fiiL:e.iid�;.n�5•i�.ki'r1� 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 -431 -3665 Ms. Rose Ann Lopez June 19, 2001 Page 2 c) a map (which has been stamped by a landscape architect licensed in the State of Washington) showing the areas that were revegetated along with the botanical and common name, size and spacing of the plants used; and d) Final maintenance recommendations. 8. The installation of plant materials in the Wetland D buffer shall be completed in a manner acceptable to the City of Tukwila prior to the expiration of the Temporary Construction Easement (dated June 14, 2001 and granted by Puget Sound Energy to BP /Olympic Pipeline). ` e':+. G.:+'.,: i,,.: sl' t' a" url l:�•rkc.SJ.J+ ....F . z ~ w 2 J Uo U D U 3. Completion of the directional bore and pipeline installation activities. w w 4. A post- construction inspection to be conducted (and attended by a representative 2 from the City of Tukwila, the landscape architect and the contractor) to define the u a limits of disturbed areas that need revegetation. _ 3 w 6. Development of a final planting plan for the disturbed area that will restore the ? 1- vegetation to pre- construction condition or better. Plan to be provided to the City o w of Tukwila. ? o 6. Installation of plant materials to be observed by a representative of The Jay Group. o A representative from the City of Tukwila shall conduct a post - installation w inspection upon notification of completion by The Jay Group. o 7. Submission of a Final Summary Wetland Buffer Report to the City of Tukwila. The ui Z report shall include the following: a) a map of the pre- existing vegetation in the area of disturbance; b) a summary of the revegetation activities completed and a description of the various plant communities affected; F. z. o I z Ms. Rose Ann Lopez June 19, 2001 Page 3 9. Monitoring of replanted areas shall be in accordance with the report's final maintenance recommendations. Monitoring shall occur for a period of two years to ensure successful plant establishment. Sincerely, Steve Lancaster Director of Community Development cc: Boyd Benson, GeoEngineers VIA FAX 425 - 861 -6050 Deborah Ritter, Associate Planner Robin Tischmak, Senior Engineer Greg Villanueva, Utilities Inspector Gary Schulz, Urban Environmentalist z z W W 2 J U 0 U) 0 : W I J H WO Q : • a. E-- _ z1.- 1- 0 zi- W uj U m O cn: CI 1 W W F- • U .. z. 0 z Geo Engineers MEMORANDUM TO: FROM: DATE: FILE: SUBJECT: Rose Ann Lopez (OPLC) and Greg Villanueva, Deborah Ritter, and Robin Tishmack (City of Tukwila) Boyd Benson and Galan McInelly June 28, 2001 0894 - 099 -00 Franchise Permit Application Information 2 no1 8410 154 Avenue NE Redmond, WA 98052 Telephone: (425) 861 -6000 Fax: (425) 861 -6050 INTRODUCTION The purpose of this memo is to summarize anticipated Franchise Utility Permit conditions associated with the proposed Olympic Pipe Line Company (OPLC) pipeline reroute at South 180` Street in Tukwila, Washington. The content of this memo was briefly discussed during a telephone conversation between Greg Villanueva of the City of Tukwila and Boyd Benson of GeoEngineers on June 19, 2001. OPLC is planning to complete a pipeline reroute beneath the proposed grade separation activities to be completed by the City of Tukwila at South 180 Street in Tukwila. The proposed grade separation activities include lowering the east -west trending road surface at South 1 80 Street beneath existing railroad tracks and the Interurban pedestrian trail. The existing north -south trending OPLC 14 -inch diameter pipeline is located immediately west of the Interurban Trail along the west edge of the Puget Sound Energy (PSE) utility corridor (see attached Figure). The pipeline reroute will be completed as a directional bore. The bore path is approximately 1300 feet long and is generally located beneath the existing pipeline section at depths of up to 100 feet below the ground surface. The directional bore entry pit will be located within an 80 -foot wide, 150 -foot long work area located approximately 600 feet south of South 180 Street. The directional bore drill rig, support equipment, and excavation equipment will be situated in the entry pit work area located on the west side of the Interurban Trail. Access to the bore entry pit work area will be via the east end of South 182 Street. The directional bore exit pit will be located within a 50 -foot wide, 100 -foot long work area located approximately 600 feet north of South 180 Street. Excavation equipment will be situated in the exit pit work area located along the Interurban Trail. A pipe layout and welding area will extend approximately 1,300 feet north of the exit pit work area on the Interurban Trail. Access to the bore exit pit work area and pipe layout and welding area will be via the Interurban Trail. FRANCHISE AGREEMENT We understand that the proposed directional bore work will be permitted under a Franchise Utility Permit once review of the project is completed. The following section of this memo summarizes anticipated conditions of the Franchise Permit. Our understanding of possible conditions to the Franchise Agreement is based on discussions with Robin Tishmack, Deborah Ritter, and Greg Villanueva of the Memorandum to OPLC 0 of Tukwila June 28, 2001 Page 2 City of Tukwila. We understand that additional conditions are likely, and present our anticipated conditions as a tool to help expedite the Franchise Agreement Permitting process. z Z ; � w. 6 J U U co J H co w w � Q I w z = F- w ~ U O — O I_ U u. O .. Z w U' H ' — Interurban Trail Restoration: Portions of the trail damaged during construction activities, if any, will Z be repaired upon completion of the construction activities. Areas adjacent to the trail not located within wetland buffers will be graded, hydroseeded, and covered with straw mulch. Interurban Trail Bypass: The pipe laydown area, exit pit work area, and portions of the entry pit work area are located on the Interurban Trail. Based on conversations with Robin Tishmack, it will be necessary to bypass trail traffic around the work areas during construction activities. As portions of the trail may be completely blocked by construction activities, we recommend that the reroute bypass extend from north of the pipe laydown area to south of the entry pit work area. The route described below and on the attached map is one reroute option. Signage requirements for the reroute will need to be specified by the City of Tukwila. Possible Interurban Trail Reroute from north section of the trail: • Trail blocked with orange fencing and signage at south edge of gravel- surfaced Strander Boulevard extension/Interurban Trail intersection. Reroute signs show reroute extending along Strander Road to Green River Trail. • Signage at Green River Trail/Strander Road intersection showing detour route to Interurban Trail. • Signage at Green River Trail/South 180 Street intersection showing detour route to Interurban Trail. • Signage along South 180 Street showing route from Green River Trail to 72 Avenue South. • Signage along 72 Avenue South showing route from South 180 Street to South 182 Street. • Signage along South 182 Street from 72 Avenue South to Interurban Trail. • Trail blocked with orange fencing and signage at north edge of gravel- surfaced South 182 "d Street extension/Interurban Trail intersection. Reroute signs show reroute extending to Green River Trail. Wetland Buffer Restoration: Wetland buffer restoration will be completed as presented in the City of Tukwila Special Permission letter dated June 19, 2001. City of Mkwila Department of Public Works 6300 Southcenter Boulevard Suite 100 Tukwila, WA 98188 (206) 433 -0179 Permit Number Franchise Utility Permit Application Name of Utility . Olympic Pipe Line Company 14" Diameter Petroleum Product Pipeline Street Address South 180th Street City /State /Zip Tukwila, Washington Applicant Name Olympic Pipe Line Company Phone No.: Field Contact Person Rose Ann Lopez Alternate Contact - •GeoEngineers, Boyd Benson to the municipality of the city of Tukwila to perform work as noted below or as shown on attached drawing(s). As part of the work description, please indicate any lane closures which may be required and the desired time(s) for same. No planned lane closure. See attached memorandum and site plan Phone No. (mobile, pager, etc): 475/777 -5713 This permit is valid for 90 calendar days from the date of approval as shown below. The applicant shall comply with all State and local laws or ordinances. The applicant shall save the City harmless from any and all damages which may accrue to any person or property because of this installation or the maintenance thereof. Work performed under this permit shall adhere to the following: 1. 24 hours prior to construction, the contractor shall notify City Inspector Greg Villanueva at 433 -0179. 2. Prior to construction, all utilities in the vicinity shall be field located. NOTE: For City of Tukwila utility locates, call One -Call at 1- 800 - 424 -5555. 3. Detours within the public right-of-way shall be in accordance with the current edition of the Manual on Uniform Traffic Control Devices. A traffic control plan shall be submitted for prior approval if requested by the City Inspector. 4. For work within a public street, no open cut is allowed unless specifically approved. 5. The utility contractor shall carry a minimum of $1,000,000 liability insurance (personal injury, property damage), and be licensed in the State of Washington to carry out this kind of work. Plan Revision Date: Permit Extension Date: Date of approval: City of Tukwila Approved by: Title: Utilities Inspector ayiw.wtx ? M Z Q I- = Z ~ W JU O 0 u) W J H N W 2 J LL Q co I d F- W Z H I- O Z1- 'Li Lu 0 O — O 1— WW I I--H L 0 Z W U = O ~ z ul June 19, 2001 z 61-1 _I 00 0 w CO w 2 u_ d = 1- W zF. I- 0 uj z I— U o - 0 I-- w W . I— Your application for the above - referenced permit, including the Draft Wetland Buffer LL , z Impacts and Mitigation Plan (dated February 28, 2001, prepared by The Jay Group) has v S been reviewed. o z Ms. Rose Ann Lopez Engineer /Project Manager Olympic Pipe Line Company P.O. Box 1800 Renton, Washington 98057 VIA FAX 425 -271 -5320 Dear Ms. Lopez: City of Tukwila Re: Pipeline Bypass at South 180th Grade Separation Special Permission - Director Work in Wetland D Buffer (L01 -004) Steven M. Mullet, Mayor Department of Community Development Steve Lancaster, Director Under TMC 18.45.080(B)(2), construction of new essential streets and roads, rights -of- way and utilities may be permitted within a sensitive area or buffer with the review and approval of the Director of Community Development. Under TMC 18.45.080(C)(3)(c), disturbances to the buffer must be minimized, and after completion of installation of essential utilities, must be restored to pre - project configuration, replanted as required and provided with maintenance care until newly planted vegetation is established. Your request to work within the buffer of Wetland D has been approved subject to the following conditions: 1. Submission of a Final Initial Wetland Buffer Impacts and Mitigation Plan to the City of Tukwila (stamped and signed by a landscape architect licensed in the State of Washington). 2. Issuance of a Franchise Utility Permit from the City of Tukwila. The permit will reference Conditions 3 through 9 of this Special Permission approval. 6300 Southcenter Boulevard, Suite #100 ...Tukwila, Washington 98188 • Phone: 206 -a31 -3670 • Fax: 206- 431 -3665 I: s�.:;;S. w @?� ° ° ,ztdv:I+i i: ' � � acix+ElgA ;(RI ,t:i u ' C3 " , 'f f wuklia: �'i3:Zir `.' '. JUN 20 '01 11:47AM TUKWILA DCD /PW Ms. Rose Ann Lopez June 19, 2001 Page 2 report shall include the following: z iI w 6 J U U CO CI W = J W • 0 4. A post - construction inspection to be conducted (and attended by a representative 2 from the City of Tukwila, the landscape architect and the contractor) to define the g limits of disturbed areas that need revegetation. 5. Development of a final planting plan for the disturbed area that will restore the Z �. vegetation to pre - construction condition or better. Plan to be provided to the City o of Tukwila. z i- 2 6. Installation of plant materials to be observed by a representative of The Jay Group. o A representative from the City of Tukwila shall conduct a post - installation inspection upon notification of completion by The Jay Group. _ 0 7. Submission of a Final Summary Wetland Buffer Report to the City of Tukwila. The z w U= 0 3. Completion of the directional bore and pipeline installation activities. P..1/4 a) a map of the pre - existing vegetation in the area of disturbance; b) a summary of the revegetation activities completed and a description of the various plant communities affected; c) a map (which has been stamped by a landscape architect licensed in the State of Washington) showing the areas that were revegetated along with the botanical and common name, size and spacing of the plants used; and d) Final maintenance recommendations. 8. The installation of plant materials in the Wetland D buffer shall be completed in a manner acceptable to the City of Tukwila prior to the expiration of the Temporary Construction Easement (dated June 14, 2001 and granted by Puget Sound Energy to BP /Olympic Pipeline). z JUN 20 'Ei1 11 :4(HVI IUkWILH ULUii Ms. Rose Ann Lopez June 19, 2001 Page 3 9. Monitoring of replanted areas shall be in accordance with the report's final maintenance recommendations. Monitoring shall occur for a period of two years to ensure successful plant establishment. Sincerely, Steve Lancaster Director of Community Development cc: Boyd Benson, GeoEngineers VIA FAX 425 -861 -6050 Deborah Ritter, Associate Planner Robin Tischmak, Senior Engineer Greg Villanueva, Utilities Inspector Gary Schulz, Urban Environmentalist Geo Pei Engineers MEMORANDUM TO: FROM: DATE: FILE: SUBJECT: Steve Lancaster, City of Tukwila Rose Ann Lopez (OPLC) and Boyd Benson (GeoEngineers) October 3, 2001 0894- 099 -01 Expanded Work Area at North End of OPLC South 180 Reroute 8410 154t Avenue NE Redmond, WA 98052 Telephone: (425) S61 -6000 Fax: (425) 861 -6050 INTRODUCTION The purpose of this memo is to summarize planned activities associated with the proposed work area expansion at the north end of the OPLC South 180 reroute in Tukwila Washington. This memo was requested by Gary Schulz, Deborah Ritter, and Robin Tishmack of the City of Tukwila during a site meeting with OPLC, GeoEngineers, and Plem Co representatives on October 2, 2001. We understand that the City of Tukwila will commence construction of the planned South 180 Grade Separation within the next few months. The location of the existing OPLC 14 -inch diameter petroleum pipeline conflicts with the planned grade separation activities. OPLC has completed a directional bore to replace the section of pipeline in the vicinity of South 180 Street. The bore is approximately 1,300 feet long and is located near the west edge of the Interurban Trail. The bore extends from an entry pit work area located approximately 600 feet south of South 180 Street to an exit pit work area located approximately 600 feet north of South 180 Street. PLANNED WORK AREA EXPANSION The north work area is currently 100 feet long (north- south) and 50 feet wide (east- west). The work area extends from the east edge of the Interurban Trail to the west edge of the OPLC easement (see attached figure). The north work area is located within buffers of several previously mapped Type 2 Wetlands. The work area and wetland areas are shown in the June 25, 2001 Jay Group report titled "Wetland Buffer Impacts and Mitigation Plan for the Olympic Pipeline Company Tukwila Bypass Bore Project." Additional area is required at the north work area to connect the new pipeline segment into the existing line. The additional work area extends 25 feet north and 55 feet south of the existing work area (see attached figure). The additional work area will add 4,000 square feet to the existing work area, for a total work area of 9,000 square feet. Much of the work area is located within an approximately 20 -foot wide ditch along the west edge of the Interurban Trail. Based on conversations with City representatives during our October 2, 2001 meeting, the additional work area is located within Type 2 Wetland Buffers and Wetland Areas. However, much of the vegetation within the wetland and buffer areas include non - native plants such as scotch broom and himalayan blackberry. Erosion control, including silt fence and straw bales, will be installed at the limits of the work area as summarized in the July 30, 2001 GeoEngineers report titled "Geologic and Memorandum to Steve Lancaster October 3, 2001 Page 2 Geotechnical Assessment, South 180' Street Bypass, Tukwila Washington." Efforts will be made to minimize construction impacts within the work area. PLANNED MITIGATION MEASURES The areas disturbed by activities associated with construction of the OPLC reroute will be restored to their pre - existing function and values or better. The plan outlined in the June 25, 2001 Jay Group report titled "Wetland Buffer Impacts and Mitigation Plan for the Olympic Pipeline Company Tukwila Bypass Bore Project" will be followed for the restoration activities. The restoration activities include: • Grading and restoring the ground surface following completion of the construction activities. • Identifying and mapping areas impacted by the reroute activities in conjunction with the City. • Developing a planting and restoration plan in association with the Jay Group and the City. • Implementing the planting plan with final review by the City. • Implementing a monitoring and maintenance plan for a 2 -year period. • Providing a report summarizing the restoration and revegetation. We expect that the planned restoration and revegetation will improve the function and values of the site. Non - native plants, including scotch broom and himalayan blackberry, present within the work area prior to construction will be replaced with native vegetation. In addition, the City has requested that excavation activities be completed to open up a water flow constriction within the ditch along the west side of the Interurban Trail within the work area. Removal of the constriction should improve north -south water flow within the ditch and wetland area. We understand that the City of Tukwila is requiring a financial security to assure that the planting, maintenance, and monitoring of the plantings is completed for a period of two years. Based on our discussions with the City of Tukwila, we estimate that the cost of planting, maintenance, and monitoring will be approximately $3,100. This amount includes: • Planting (30 plants at $50 per plant): $1,500 • Monitoring and Maintenance (2 years, 10 hours /year at $80/hour): $1,600 TOTAL $3,100 A Developer's Project Warranty Request Form and check for $4,650 ($3,100 plus a 50 percent contingency) will be submitted to the City of Tukwila within the next few days. Please call Boyd Benson at (425) 861 -6079 or Rose Ann Lopez at (425) 227 -5213 with any questions. .s. y F. /.e; �. ,...v..,..e'.:ti'F��i vf. ran. tY_ 2., �Nx.t) f�. 4L.. �'...T N. �` �'• t>'= J::', is�w51�5521W1L� ai4�A "^_a.'^_:;4�r`.LY' APPROMATE APPlovo ATE SC '11501111)04114AL 2050' AntiloWAt. Won AM I•O* MA 6 - 1 AillidewAATI cot viol or tisui pity MAIO Aal. s 1 4-00 2 s s $ 134-e. Aliki..... IiIIINv Illk r 4111111111/21111bia.. rirdrArAFAVAZ MOM i arliti MUM rAPAirill" AINVAIIIIIVAIIIIIIAiii■ t rArArAnc //PTA a umm.nv k rArArArA 'ftilIRVAllowt,11"111rAllir4111P40.'":41triel . rtl in to W V ..._ _ ERURB4AL- TRAIL-- . . 30 z.:=4:Wahier.. • • • " ""' . _ 0 25' 601 0, ExicTIA 50' WIDE x 100 LONG ORK AREA (AISTieg l'iret•INE s s s 01 • • - • • • -- .• .• - • • .. • • •- • ••-••- . • ^•• _ • - •• • _ • - • .• • _ ..... " • • _ •_ ••_••_ _.•._.• • __• __.___••..• . . • • . . , . . • ...• . . ., • • • " z II Z ...I C.) C.) 0 • V) 0 CO W W Hi- :w 0 5 LL < I a I— Z 1.— l-0 W w 2 n 0 o 1- w • 0 ,., i.")u o Department of Community Development 6300 Southcenter Blvd, Suite 100 Tukwila, WA 98188 Phone: (206) 431 -3670 Fax: (206) 431 -3665 Fax Fax: 2.5 -. S'c l - (o Re: P, e,LY Q . e t1 P4(`>c -Comments: NA) LSE one _. k A" Date: Phone: 4-2c : , I Co O-7 q Pages: l0 -3 - Urgent ❑ For Review ❑ Please Comment ❑ Please Reply ❑ Please Recycle .Q - C� fie l -Q �C)1 )W-M. (`) c 1\ Cpl (Y1 `-,-) `Ma& (r C (&odQ 1Yu1'YYW Oft Le 1 f2C ekU-2 a r- come. 4 (MOLD W . V1 J m v +O `��e Di f`2C� ' O C • it 1� r\at - 4J / 4c rte.Q -- w An City Of Tukwila IL -EukkA ds n.2c L a- a ���� fil/o c_aa i .0 i_ a. ic3.' �r! isia : > v::uSiG::Y,ai:'13;,::lS�tti `,,.:' k�2': d: �,.» Lif`> i4tiY•.`': 2z 'i.= :iiib�s:;hSIS,:��lE21uf'�i 0/03/01 WED 09:27 FAX 425 86%6050 Memorandum to Steve Lancaster October 3, 2001 Page 2 GEO ENGINEERS Geotechnical Assessment, South 180 Street Bypass, Tukwila Washington. Efforts will be made to minimize construction impacts within the work area. PLANNED MITIGATION MEASURES The areas disturbed by activities associated with construction of the OPLC reroute will be restored to their pre - existing function and values or better. The plan outlined in the June 25, 2001 Jay Group report titled "Wetland Buffer Impacts and Mitigation Plan for the Olympic Pipeline Company Tukwila Bypass Bore Project" will be followed for the restoration activities. The restoration activities include: • Grading and restoring the ground surface following completion of the construction activities. • Identifying and mapping areas impacted by the reroute activities in conjunction with the City. • Developing a planting and restoration plan in association with the Jay Group and the City. • Implementing the planting plan with final review by the City. • Implementing a monitoring and maintenance plan for a 2 -year period. • Providing a report summarizing the restoration and revegetation. a 003 We expect that the planned restoration and revegetation will improve the function and values of the site. Non - native plants, including scotch broom and himalayan blackberry, present within the work area prior to construction will be replaced with native vegetation. In addition, the City has requested that excavation activities be completed to open up a water flow constriction within the ditch along the west side of the Interurban Trail within the work area. Removal of the constriction should improve north -south water flow within the ditch and wetland area. {;n A n trL) We understand that the City of Tukwila is requiring a plIk security to assure that the planting, maintenance, and monitoring of the plantings is completed for a period of two years. Based on our discussions with the City 3 of or Tukwila, we estimate that the cost of planting, maintenance, and monitoring , � x will be approximately WOO: A Developer's Project Warranty Request Form and check for $3 39- LiU JO (99 -plus a 50 percent contingency) will be submitted to the City of Tukwila within the next few days. Please call Boyd Benson at (425) 861 -6079 or Rose Ann Lopez at (425) 227 -5213 with any questions. 1 /4- amoi E (N. U Lt. 6)111.1x23`._): \ ci. t(1 ^J CS Pl. a f\k" -3 x . c > , \ . \ - .0 fi \Maq \A Lte&cs x 10 1 )0u1; X y '� hr 10 De..) ; u7« rv=- id4; 4ti4,'sc' ..aC:,:d 4iirLtti3ri�s5 -fc;5rei`sv .t . ).*&ga 0 z _I- ~ w J 00 0 N co Lu J = F- co w w 2 u_ d "±- w z � I— 0 Z I— w w 0 0 S 0 I— w LL' O ..z w = 0 Z F,Y • Ammorliila October 3, 2001 2nd Ms. Rose Ann Lopez Engineer /Project Manager Olympic Pipe Line Company P.O. Box 1800 Renton, Washington 98057 VIA FAX 425 - 271 -5320 City of Tukwila Re: Pipeline Bypass at South 180th Grade Separation Special Permission — Director Work in Wetland D and its Buffer (L01 -004) Dear Ms. Lopez and Mr. Benson: Department of Community Development Boyd Benson GeoEngineers 8410 154th Avenue NE Redmond, WA 98052 VIA FAX 425 - 861 -6050 Steven M Mullet, Mayor Steve Lancaster, Director We have reviewed your Memorandum dated October 3, 2001, amending information and slightly modifying the scope of work previously described in the "Wetland Buffer Impacts and Mitigation Plan for the. Olympic Pipeline Co. Tukwila Bypass Bore Project" (dated June 25, 2001, prepared by The Jay Group). This memo also summarizes the information you provided Deborah Ritter and Gary Schulz during their site visit on October Your revised request to work within a portion of Wetland D and its buffer has been approved subject to the submission of a financial security in the amount of $4,650.00. This represents the cost of planting, a two -year monitoring and maintenance period and a 50% contingency. The other conditions, previously outlined in our June 19, 2001 approval letter to you, remain in full force and effect. Those conditions are restated below as follows: Submission of a Final Initial Wetland Buffer Impacts and Mitigation Plan to the city of Tukwila (stamped and signed by a landscape architect licensed in the State of Washington). This condition was satisfied on June 27, 2001. Y 2. Issuance of a Franchise Utility Permit from the City of Tukwila. The permit references Conditions 3 through 9 of this Special Permission approval. The Public Works Department has confirmed that this permit has been issued. 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 Ms. Rose Ann Lopez Mr. Boyd Benson October 3, 2001 Page 2 z iI- '~ w 6 UO CO > A post- construction inspection to be conducted (and attended by a representative w from the City of Tukwila, the landscape architect and the contractor) to define the L limits of disturbed areas that need revegetation. ul 0 Development of a final planting plan for the disturbed area that will restore the vegetation to pre- construction condition or better. Plan to be provided to the City u of Tukwila. z � I- O z i- w • w U � o ff' O F- LU w I - U u' O a) a map of the pre- existing vegetation in the area of disturbance; w U O- $ 3. Completion of the directional bore and pipeline installation activities. 6. Installation of plant materials to be observed by a representative of The Jay Group. A representative from the City of Tukwila shall conduct a post- installation inspection upon notification of completion by The Jay Group. 7. Submission of a Final Summary Wetland Buffer Report to the City of Tukwila. The report shall include the following: b) a summary of the revegetation activities completed and a description of the various plant communities affected; c) a map (which has been stamped by a landscape architect licensed in the State of Washington) showing the areas that were revegetated along with the botanical and common name, size and spacing of the plants used; and d) Final maintenance recommendations. 8. The installation of plant materials in Wetland D and its buffer shall be completed in a manner acceptable to the City of Tukwila prior to the expiration of the Temporary Construction Easement (dated June 14, 2001 and granted by Puget Sound Energy to BP /Olympic Pipeline). times z Ms. Rose Ann Lopez Mr. Boyd Benson October 3, 2001 Page 3 � Q M J U ; U • C w= J F. CD IL. w w ¢ • 3 E _ z � I-0 Z ▪ ~' U • C cc: Deborah Ritter, Associate Planner a Robin Tischmak, Senior Engineer 0 Greg Villanueva, Utilities Inspector o Gary Schulz, Urban Environmentalist . z Lb • co O z 9. Monitoring of replanted areas shall be in accordance with the report's final maintenance recommendations. Monitoring shall occur for a period of two years to ensure successful plant establishment. Sincerely, Steve Lancaster Director of Community Development _........._ ��.., _.,» :r... ✓..• ..f 1:.•:i:.; ....:.c..;.,: tw .re ... ...,.:r:,. a _.Yus '•i::f , ..tS.,......st I... :SS' .. "'� . = .,'LU.:SS + +._.x.si� _ ... Deborah Ritter - OPLC South 180th Str Reroute Res toration From: "Boyd Benson" <bbenson @geoengineers.com> To: <rtischmak @ci.tukwila.wa.us >, <dritter @ci.tukwila.wa.us >, "Mike Monan" <monanms @bp.com >, "Rose Ann" <lopezrm @bp.com >, <kevin @jaygroupllc.com> Date: 10/30/01 3:22PM Subject: OPLC South 180th Street Reroute Restoration Page 11 z � ce w QQ � J U 00 co❑ cn w J I u) w w w co a = w z � O z w w 0 0 �. ❑ I-- W Based on comments made at the site, Robin Tischmak of the City was satisfied 0 with the grading with respect to general shape, side slopes, and water w z flow. The Plem Co representatives stated that the trail area would be 0 cleaned and that Interurban Trail pavement damaged during the construction '— would be repaired. z The purpose of this email is to summarize the October 29, 2001 meeting at the site of the OPLC South 180th Street reroute in Tukwila. Robin Tischmak (City), Mike Monan (OPLC), Dan Hamlin (OPLC), Matt Andrews (Plem Co), Will Hart (Plem Co), Kevin Karlson (Jay Group), and Boyd Benson (GeoEngineers) met at the site to discuss restoration at the north end of the reroute. Robin Tischmak of the City of Tukwila requested this email. The pipeline tie -in excavation for the north end of the reroute is located within a wetland buffer area. A portion of the wetland was impacted by the tie -in activities. These activities were completed with City of Tukwila permission, as summarized in the City's October 3, 2001 approval letter. The tie -in work area was regraded following completion of the pipeline tie -in on October 17, 2001. The ground surface in the disturbed area was graded to match topography of the existing drainage swale and adjacent slopes observed north and south of the work area. A local topographic high within the swale over an existing east -west trending Renton sewer was removed during the grading at the request of the City to allow for unhindered water flow. The Jay Group is in the process of creating a planting plan for the site, as specified in the City of Tukwila Franchise Permit and our July 30, 2001 report titled "Geologic and Geotechnical Assessment, South 180th Street Bypass, Tukwila Washington." The planting plan will be submitted to the City of Tukwila for comments once reviewed by OPLC and GeoEngineers. We estimate that the planting plan will be ready for submission to the City during the first week in November. Based on comments made during the site visit, the planting plan will likely include: - Hydroseed with a wetland vegetation mix - Individual plantings.. Because of pipeline mowing and observation requirements, the plantings will not include tree species. Please call with any questions, Boyd Benson GeoEngineers (425) 861 -6079 October 4, 2001 Ms. Rose Ann Lopez Engineer /Project Manager Olympic Pipe Line Company P.O. Box 1800 Renton, Washington 98057 VIA FAX 425 - 271 -5320 Re: Pipeline Bypass at South 180th Grade Separation Special Permission — Director Work in Wetland D and its Buffer (L01 -004) Dear Ms. Lopez and Mr. Benson: We are in receipt of your checks totaling $4,650.00. This sum represents a financial security for the cost of planting in the affected wetland area, a two -year monitoring and maintenance period and a 50% contingency. You may now proceed with the proposed work on the site, subject to the conditions stated in the Franchise Utility Permit and our October 3rd and June 19th approval letters. Sincerely, City of Tukwila Department of Community Development Deborah Ritter Associate Planner Mr. Boyd Benson GeoEngineers 8410 154th Avenue NE Redmond, WA 98052 VIA FAX 425 - 861 -6050 Steven M. Mullet, Mayor Steve Lancaster, Director 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 December 5, 2001 Ms. Rose Ann Lopez Engineer /Project Manager Olympic Pipe Line Company P.O. Box 1800 Renton, Washington 98057 VIA FAX 425 - 271 -5320 City of Tukwila Department of Community Development Re: Pipeline Bypass at South 180th Grade Separation Special Permission — Director Work in Wetland D and its Buffer (L01 -004) Dear Ms. Lopez and Mr. Benson: Mr. Boyd Benson GeoEngineers 8410 154th Avenue NE Redmond, WA 98052 VIA FAX 425 - 861 -6050 We have completed our review of your proposed Mitigation Planting Plan (dated November 7, 2001 and received by our office on November 13, 2001). This proposal is in response to Item #5 of our October 10th letter requiring "development of a final planting plan for the disturbed area that will restore the vegetation to a pre- construction condition or better." Your November 13th transmittal letter indicates that the current proposal uses only emergent plants and is in response to the aerial reconnaissance criteria in the Olympic Pipeline safety program. You have acknowledged that this is a change from your Conceptual Revegetation Plan (page 4 of the Wetland Buffer Impacts and Mitigation Plan dated June 25, 2001) which recommends the use of willows. Gary Schulz, our Urban Environmentalist, visited the site today in connection with his review of your proposal. He has advised me that he cannot approve your current proposal due to the lack of shrub cover. He has the following comments: 1. The regraded wetland swale has steep side slopes and is inundated with more than one foot of water. The hydrology condition will not likely change until next spring or summer. Therefore, it will be very difficult to install emergent plant tubers and they would not survive on a steep slope. The entire area should be staked with willow and red osier dogwood. Red elderberry, western hazelnut may also be appropriate to plant on the slopes. 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 -431 -3670 • Fax: 206 -431 -3665 Steven M. Mullet, Mayor Steve Lancaster, Director z w re 6 J U 00 (0 J LL w g =a w Z F- 0 Z F- w w U Ca o - En F- w u F - 0 L - 6 O w Z U= 0 z Ms. Rose Ann Lopez Mr. Boyd Benson December 5, 2001 Page 2 2. Additionally, the side slopes are eroding and the area that was cleared appears shorter than 210 feet as shown on the current plan. The plan should be adjusted accordingly to more accurately identify the disturbance area. A coir mat material may be placed on the side slopes to prevent excessive erosion while plantings are installed within the mat. If you have any questions regarding these comments, please contact Gary Schulz at 206 - 431 -3662 or myself at 206 - 431 -3663. Gary's office hours are from 8:30 to 5:00 on Mondays and Tuesdays and from 8:30 to 12:00 on Wednesdays. Sincerely, Deborah Ritter Associate Planner cc: Gary Schulz, Urban Environmentalist Page From: Gary Schulz To: Deborah Ritter Date: 12/5/01 11:23AM Subject: Olympic Pipeline restoration Re: Permit #L01-004 I have visited the site and reviewed the current restoration proposal. I cannot approve the plan as it does not include any shrub cover. Willows were proposed in the concept and the current plan only has emergent plants. I understand trees are not recommended in the revegetation. However, the regraded wetland swale has steep side slopes and is inundated with more than 1 foot of water. The hydrology condition will not likely change until spring /summer. Therefore, it will be very difficult to install emergent plant tubers and they would not survive on a steep slope. I recommend the entire area be staked with willow and red osier dogwood. Red elderberry, western hazelnut may also be appropriate to plant on the slopes. Additionally, the side slopes are eroding and the area that was cleared appears shorter than 210 feet as shown on the current plan. A coir mat material may be placed on the side slopes to prevent excessive erosion while plantings are installed within the mat. I recommend that you visit the site to better understand my comments. Gary Schulz JAN 18 '01 05 :41PM TUWN=1 DCD /PW STATE of WASHINGTON CWKSYorgINo • The undecsigud being duly vaom and upon oath staler as follows: 1. P 4.t t E te c u'eentt o oft b a property ` which i dN subject of this application. z 3. S. 6 7, AFFIDAVIT OF OWNERSHIP AND PERMISSSIOr1 TO ENTER PROPERTY CITY OF TUKWLLA baps tntttnt of Cansmunity Development 6300 SatdhcenterBoulervarta Tukwila, WA 98188 Taleph.CM: (206) 431 -3670 FAX (206) 431 -3665 Frrttull; t_ui4auraci.tukwila.wa.ut 4. Owner grants the City. tts cxnpl ea, aneuts, incecs, commons or other the right W enter upon Owner's ml p lye locoed SO . 130 Ili T Ain' 11.1 IrERU BA1J TRR1L for the ptspose of application mine. for the limited tune newernty to convince jut: ptupose. „ ., P.3 /3 - tefundo'Jirs.. EXEcurEDet BELLEVUE (cky). WA (rnzo.at FEBRURR' - 2.2.."2601 , B`1 : WAYNE 13RESSLER I REAL ESTATE REPRESE1ITATlVE ll Dm ST: NE ( ) S - 962- 307..ct (piwne ) }ether ,� " , �,, "� N «' (Sip: we) On dra day personalty appesmd before me vv.0-y rd � S SS'licc\_ to inc broom so be the Wt./ideal who =mood the forogoing instrument sod adenowledvd dme Wilt signed the =nom Jus/htx voluntary as and dad for the uses and purposes matconedtheteir. SUESCRl9® AND MORN TO BEORE ME ON THIS 27 ") DAY() a le.ci4:at2.,/ N ,� ��� NOTARY l'178I.LC 1n t ° ^' o h+gtoc C4 C` • � �j S st O N !�I % My CommLssion comfits on :: Q OTAR T` ST A P uaLIG r • .,Fo•....• ••• q_ ZDd RECEIVED !IA ? fl52001 COMIVIL TY DEVELOPMENT File: LO1-0004 35mm Drawing #i z a • _ • 6 J U' 00 NCI.. (A • W u.a -d =W _, • z f-• '0 O =; Ira _ (Wj'. u_O. • w =. U ; 0 ~. 2 a r_ 1 I 1 L J 1 � /�� / / / �� � j(S EE NOTE _ { _- -- - - -• ] i / /_7 / UP RA! lrR0.1p -: t_ .- -_!_= t-. - � � 1 t � _ �T / -• -r _ T ---; ,. _ - -- y - •-- -- ?'By4,'_.�� -�-, ai 1 10tI L s UP R1!!flO11 • it - 1 II 8 -16 w t - - I • • • APPROXIMATE ENTRY PIT PROPOSED 80' WIDE x 150' LONG WORK AREA i - 10 PSE R.O.W. -10' OPLC R.O.W. L Notes: 1. The Iocatio -a of all Cositirg foot uses shown are OP mote. 2. The location of the OPLC pipeline has not been verified. The location of tre opens must be verified prior to any construction acliv:lies. 3. Ins location of all wetlands we approximate per the Berger /Abam Dorn Wetland Study (1999). RCle Electronic drawing 'Cxisl'ng 14' provided by the City of Tukwi'a and wetland delineation areas from t ^e Berner /Abam Draft Wetland Study (19991. APPROXIMATE LOCATION OF PLANNED DIRECTIONAL BORE AND NEW 14" DIAMETER PIPELINE EXPLANATION: LNTRIDIRDAN TRAIL APPROXIMATE LOCATION OF EXISTING OPLC 14 -INCH PIPELINE (SEE NOTE) ILNSF RAILROAD 7 - - -- } -so B -20 BORING PREVIOUSLY COtAPLETED BY SHANNON & WILSON, INC. 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SCAIF: 1 =50' Hnriz. end Vert iRedn,ona, We 98052 a r_ 1 I 1 L J 1 � /�� / / / �� � j(S EE NOTE _ { _- -- - - -• ] i / /_7 / UP RA! lrR0.1p -: t_ .- -_!_= t-. - � � 1 t � _ �T / -• -r _ T ---; ,. _ - -- y - •-- -- ?'By4,'_.�� -�-, ai 1 10tI L s UP R1!!flO11 • it - 1 II 8 -16 w t - - I • • • APPROXIMATE ENTRY PIT PROPOSED 80' WIDE x 150' LONG WORK AREA i - 10 PSE R.O.W. -10' OPLC R.O.W. L Notes: 1. The Iocatio -a of all Cositirg foot uses shown are OP mote. 2. The location of the OPLC pipeline has not been verified. The location of tre opens must be verified prior to any construction acliv:lies. 3. Ins location of all wetlands we approximate per the Berger /Abam Dorn Wetland Study (1999). RCle Electronic drawing 'Cxisl'ng 14' provided by the City of Tukwi'a and wetland delineation areas from t ^e Berner /Abam Draft Wetland Study (19991. APPROXIMATE LOCATION OF PLANNED DIRECTIONAL BORE AND NEW 14" DIAMETER PIPELINE EXPLANATION: LNTRIDIRDAN TRAIL APPROXIMATE LOCATION OF EXISTING OPLC 14 -INCH PIPELINE (SEE NOTE) ILNSF RAILROAD 7 - - -- } -so B -20 BORING PREVIOUSLY COtAPLETED BY SHANNON & WILSON, INC. ' WETLAND AREA L J z 7� 0 50 100 SCALE III FEET Unser°hen DNSF "RAILROAD'.. :. ° B 60- - ®B -6A 1'IIIIIIIii'jlll I'I'I'1 VI IZj 1 I 1 I I!1 II II 1 I141II I1 1 1 11NIII141HjIII II lIHl4 11411, 1114 ,111,111 :1111111frue1110410111 lI 111, IliulL1,411111reill gilll Igtil An11,uimLl14 11,141,11uul Dale By Re ,YlQ / t e I B -13 i WETLAND / (SEE NOTE) OLYMPIC PIPE LINE COMPANY •aL • i ' GeolliEngineers 8410 154th Avenue I.E. t Redmond, Wa 98052 APPROXIMATE EXIT PIT PROPOSED 50' WIDE x 100' LONG WORK AREA INTERURBAN TRAIL t/ 1 // // / i; !i - y I)nSF_ u tP • • -- _• - -__ - B -140 • SITE PLAN SOUTH 180TH STREET TUKWILA FIGURE 2 .. :. :. 1'.itl . 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Refer to Figure 2 for location of Proposed Profile. .- 3. The locations of all features snow approximate. SCALE N FEET is " " kav,.lan Uescr :p, on Date By 01,4 Rev . OLYMPIC PIPE LINE COMPANY G E ^+ b neerS 8410 154th enue N.E. Redmond, Viaa 9805_ PROPOSED PIPELINE PROFILE SOUTH 180TH STREET TUKWILA FIGURE 3 4. The origin for horizontal statoning arb'tmry. SCALE• 7 =50' Hod,. and Vert a r_ 1 I 1 L J 1 � /�� / / / �� � j(S EE NOTE _ { _- -- - - -• ] i / /_7 / UP RA! lrR0.1p -: t_ .- -_!_= t-. - � � 1 t � _ �T / -• -r _ T ---; ,. _ - -- y - •-- -- ?'By4,'_.�� -�-, ai 1 10tI L s UP R1!!flO11 • it - 1 II 8 -16 w t - - I • • • APPROXIMATE ENTRY PIT PROPOSED 80' WIDE x 150' LONG WORK AREA i - 10 PSE R.O.W. -10' OPLC R.O.W. L Notes: 1. The Iocatio -a of all Cositirg foot uses shown are OP mote. 2. The location of the OPLC pipeline has not been verified. The location of tre opens must be verified prior to any construction acliv:lies. 3. Ins location of all wetlands we approximate per the Berger /Abam Dorn Wetland Study (1999). RCle Electronic drawing 'Cxisl'ng 14' provided by the City of Tukwi'a and wetland delineation areas from t ^e Berner /Abam Draft Wetland Study (19991. APPROXIMATE LOCATION OF PLANNED DIRECTIONAL BORE AND NEW 14" DIAMETER PIPELINE EXPLANATION: LNTRIDIRDAN TRAIL APPROXIMATE LOCATION OF EXISTING OPLC 14 -INCH PIPELINE (SEE NOTE) ILNSF RAILROAD 7 - - -- } -so B -20 BORING PREVIOUSLY COtAPLETED BY SHANNON & WILSON, INC. ' WETLAND AREA L J z 7� 0 50 100 SCALE III FEET Unser°hen DNSF "RAILROAD'.. :. ° B 60- - ®B -6A 1'IIIIIIIii'jlll I'I'I'1 VI IZj 1 I 1 I I!1 II II 1 I141II I1 1 1 11NIII141HjIII II lIHl4 11411, 1114 ,111,111 :1111111frue1110410111 lI 111, IliulL1,411111reill gilll Igtil An11,uimLl14 11,141,11uul Dale By Re ,YlQ / t e I B -13 i WETLAND / (SEE NOTE) OLYMPIC PIPE LINE COMPANY •aL • i ' GeolliEngineers 8410 154th Avenue I.E. t Redmond, Wa 98052 APPROXIMATE EXIT PIT PROPOSED 50' WIDE x 100' LONG WORK AREA INTERURBAN TRAIL t/ 1 // // / i; !i - y I)nSF_ u tP • • -- _• - -__ - B -140 • SITE PLAN SOUTH 180TH STREET TUKWILA FIGURE 2 It It U U z z. - , a) POR. 0 7t1 SP 7 AF 790 KING. COUNTY . DEPT OF ASSESSMENTS, i7 „,t/ • I 4 ""."' 11;1 ,kt- ; f /Sr / • \ 4/ 04 , 8 .4 / 1 / LI•;1; L ...l18•11 P II 3DP.W LA* o 4 0) II bJ 1— i LC 24 C ... ',..:, •„..94‘1.::. ..<:;•.',: ,,,...... .Ja. !• .....4 S..-71,--,----..- .....'••••••••-■ '•'.......„__.....-le',I.Z.1.-%. ...........1 .. 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Masi' . ea I ; 0 •1P O. p■'‘ SW 25-2374 1409 07 ST.VZIY • 44 • 7907169001 • 7 111113 11AP it FOR THE PURPOSE OF ANNISTINO IN LOCATINO TOUR' PROPERTY AND IS NOT GUARANTEED TO BROW ACCURATE AINABFREMENTE 8811160199 PcL. 5 ,• ° ;44`;?.' - -• 3 . ie e a`w / I SWi 36-23-4 • - • . ■ . ,..t . . . • .. . . .. . . . ■ • . ... . . iy: • • ..., Wrsisco i.: - ::•- 1., i : • S ;,_. : ?; . 1 ■ ■11 1 64101,13,41(«Llut11■Itilitill■m11111411114411111114114111141111411 1 111 ,141111,1 ■ 1, 1 1 ; 1711 K.C. 2021 3 , NW 36 '$o '13 .60 \ • SCALE I 10 0 L. G. loot. (..1 TR. A 0 tlECLIUF.1) Itat I 91949 SUL W.0." ......J•as sv 'oa• OT I !YAM J TEL 9 t'P" 99; ri 1.1p0 17, tt" A I IP:1 PERT ,E5 LIJ ITIII9'J 500 • OF ISECT' L-UA ITS I ' t o d t z tp< It I 111— z V .1 o tr z REcatvED *P., 96 aleo 0 E 197 E1244 r g (tt • 1 • 1 • Symbol Qty. Name Size • Condition 1t n1' r 183 ' Lonicera involucrato / Back Twinberry 1 gal. 3' o•c. . € r 171 Cornus stolonifera / Red -Osier Dogwood 1 gal. 3' o.c. r lllm 4 119 Symphoricarpos albus / Snowberry 1 gal, 3' o.c. {!!!I!;PI!!!!!!!!ilL plant in groups of 3 to 5 Nil ii !pi iii I {lli{ •{ ! • { i i i { !°! j° 119 Rosa nutkana / Nootka Rose 1 gal. 3' o.c. r,... cll`• " plant in groups of 3 to 5 . 1,5t4sf Seeded Buffer Grass Mix 1 gal. See note Approximate Centerline of Swale Interurban Trail \ 10' O.P.L.C. Easement Railroad Access Road Exit Pit Area of disturbance Boundary of Wetland 'b' Boundary of Wetland 'B' Legend Planting Notes: All trees and shrubs to be planted at a depth 3/4" higher than the level that they were grown in the nursery. All trees and shrubs to be nursery grown, any collected stack shall be from a source approved by the Landscape Architect prior to delivery. It is permissible to substitute bare root stock for the appropriate species, bare root stock will only be acceptable if approved by the Landscape Architect, Installed In the appropriate season, and Installed at a ratio of 3:2. Substitutions ore strongly discouraged, if plant availability Is a problem, contact Landscape Architect for sources or acceptable alternatives. All trees over 6' in height shall be staked. Tree stakes will be 'WC' turned lodgepole pine stakes 6' in height driven to refusal. The paying material will be r 'Chalnlack', installed per manufacturer's specifications. Root masses of containerized stock should be "scored" with a shape object, to insure that the plants will not become 'root bound ". The planting pits will receive on application of 4-2 -2 transplant fertilizer, applied per manufacturers specifications. After planting immediately saturate all planting pits, to eliminate air pockets, and facilitate settling of the backfill material. Use existing sails to backfill planting pits. If poor soil or debris is encountered when excavating plant pits, contact Landscape Architect for alternative solutions. Using fine ground bark mulch, mulch an area 36" in diameter around all Installed woody plants. All plants shall be marked with biodegradable survey flogging to facilitate future monitoring. Maintenance Notes: The maintenance/monitoring period shall be two years from the time of acceptance by the City of Tukwila The maintenance program requires monthly visits during the growing season, (March through September). Hand watering of plants shall be done as needed for plant survival, during the two year maintenance period Seeding notes: All designated areas to be seeded with D.F. Marks (800)767 -3802 Native Wetland Buffer Mix, consisting of 40% Blue Wildrye, 20% Tufted Hairgrass, 20% Northwest Manna Grass, 10% Meadow Barley, 10% American Sloughgrass. Seed to be applied per manufacturer's Specifications. 0 10 20 40 1 " =20' STATE OF WASHINGTON REGISTERED AR HITECT PAU CERTIFICA O. 566 a a 01 :} C a 0 a 01 Scale: 1 "= 20'0" bate: 11/7/01 brawn By: PJ Revision 1. 11 /13/01 changed maint. notes 2.1/25/02 changed plants 3.1/31/02 changed seeding notes Sheet # W -1 of 1 IREOEIVED MTV OFTUI(WILA 11111111 �1�llllllllillllll l♦ I'd�.11 u�i II II Ii!i li �111�111�11� 11111 �1111111111111illl it ��IIIIIII vrsrcorrA Sli „ v i .. cll z l Ili ol1 (a lu Id �U "' IL ^ • Ir IL IL II "ol n uoluu uullln uu6nl nulau uRlRn nnllln nuluh uuhul uu6hi uR6nl uuhnl uulun nullnl I➢lhul nuhw FEB - : 2002 PERMIT CENTER