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Permit L04-085 - PEDERSEN RICHARD AND DONNA - FOSTER RIDGE DEVELOPMENT SHORT PLAT
PEDERSEN, RICHARD & DONNA FOSTER RIDGE L04 -085 SHORT PLAT LAND DIVISION LAND DEVELOPMENT May 6, 2005 John B. Friel P.O. Box 27 Everett, WA 98206 Dear Mr. Friel: Nora Gierloff Q: \FOST_RDG \NOD for SP.doc City of Tukwila RE: Foster Ridge Development L04 -033 Boundary Line Adjustment L04 -034 Administrative Planned Residential Development There are three basic steps in the approval process: 1. Preliminary Approval 3 1 Z- 1 / &ICY ti NOTICE OF DECISION Page 1 05/04 /2005 Steven M Mullet, Mayor Department of Community Development Steve Lancaster, Director The Short Subdivision Committee has completed review of your short plat and administrative planned residential development applications and determined that they comply with all applicable City code requirements. The City SEPA Responsible Official has previously determined that the project does not create a probable significant environmental impact if specific mitigation conditions are imposed on the project and issued a Mitigated Determination of Non - Significance (MDNS) requiring compliance with those mitigation conditions. An addendum to that determination was issued on June 18, 2004 to address the change from a 12 lot to a 6 lot plan. This letter serves as the Notice of Decision per TMC 18.104.170. Based on the latest project submittal, preliminary approval is granted subject to the conditions stated below. This letter constitutes your preliminary approval. The application was reviewed by the Tukwila Short Subdivision Committee and approved with conditions. The conditions imposed are to ensure the short plat is consistent with the Criteria for Preliminary Approval listed at TMC 17.12.020 C in the Tukwila Subdivision Code. 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 pw03-106 nw PRELIMINARY APPROVAL CONDITIONS Utilities Drainage design for the site shall be reviewed as part of the PW infrastructure permit and shall meet City of Tukwila Surface Water Ordinance Requirements. However the detention vault will require a separate building permit and structural review. If the water line to the Goss residence at 4525 S. 139 Street is not rerouted as proposed there may be a conflict with the curtain drain proposed for the west side of the driveway to lot 5. Pursuant to the Tukwila "underground ordinance ", all utilities shall be placed underground. c. Extension of the sewer and water lines to the lots shall be approved by the appropriate utility and conform to the PACE Utility Plans dated July 2003. The proposed rerouting of the water service to the Goss residence will have significant impacts for the property owners and should be reviewed prior to permit application. As -built plans shall be provided to the Public Works Department prior to final approval. 1. Identify the location of the point of connection to the existing storm drainage pipe. A recorded storm drainage easement from the adjacent property owner, Greg Hittle, shall be submitted prior to issuance of the PW infrastructure permit. e. Separate easement documents and maintenance agreements for any common infrastructure (utility lines, access roads /driveways) shall be submitted to PW for review and approval prior to final of PW infrastructure permit. Access Fire Protection Access roads built to Public Works and Fire Department standards must be provided to all lots as shown on the Site Plan prepared by Pace Engineering dated July 2003. This requirement must be met prior to issuance of any building permits. 15' Your submittal for a Public Works permit to construct the access roads and install the utilities must contain a grading plan that shows the location of all proposed retaining walls and gives estimated cut and fill quantities. Certain retaining walls may require separate building permits and structural review. The retaining wall along the western edge of lots 3 and 4 may need to be extended to the southern boundary of S. 139 Street in order to protect the proposed access road and fire turnaround. This should be field verified prior to permit submittal. 3L>; � 1 d� u ���� � ��;,., �,,�t1 PIA ? f -b/ The proposed fire hydrants must be relocated as shown on the attached diagrams. See the Fire Department for any questions. Nora Gierloff Page 2 05/04/2005 Q: \FOST_RDG \NOD for SP.doc - �-v \w— Geotechnical l,le' General Nora Gierloff Q: \FOST_RDG \NOD for SP.doc j/ There must be a fire hydrant within 250 feet of all building sites. These hydrants will be subject to a -field water flow test witnessed by the Tukwila Fire Department. If the fire hydrant is not capable of a 1000 gallon per minute flow the future houses will be required to provide interior sprinklers, to be approved by the Fire Department. This requirement must be met prior to issuance of any building permits. The grading plan does not show a flat area in the rear yards for Fire Department ground ladder placement. If unable to provide a suitable flat area adjacent to the houses please contact the Tukwila Fire Marshal's office. The property owners will need to sign, notarize and record the revised geotechnical covenant as a condition of the PW Type C infrastructure construction permit. The permit will not be finaled until the covenant has been recorded. -V-- f`t-- 4 -- 1. The recommendation from Associated Earth Sciences, contained in their July 11, 2002 letter, that there be an on -site inspector representing the geotechnical engineers during the construction of foundations, retaining walls, water, sewer, and surface water utilities, and driveways shall be a condition of the Public Works permit. The on -site inspector shall verify in writing, on a daily basis, with the reports sent to the City's Department of Public Works, that all construction work has been performed in accordance with approved plans and specifications, permit requirements, and that the construction work complies with all of the geotechnical's recommendations. rse c),;( You must submit a revision to your existing BLA/LC file L04 -033 to modify it from resulting in six lots to resulting in one lot. This one lot will provide the starting point for this short plat, L04 -085. This BLA/LC must be recorded prior to final approval of this short plat. n. The plantings specified in the wetland mitigation/buffer enhancement plan prepared by Sheldon & Associates for the reduction of the wetland buffer from 50' to 25' along Lot 2 must be installed prior to final short plat approval. Blackberry control should be timed to match the seasonal recommendations in the report. o. The proposed replacement trees and shrubs to meet Tree Ordinance requirements must be shown on the PW infrastructure permit and installed prior to final short plat approval. All trees to be retained within the clearing limits must be flagged and have tree protection measures in place prior to the start of work on any permit. Page 3 05/04/2005 Appeal materials shall include: 1. The name of the appealing party. q. The edges of the wetland buffer easements on lots 2, 3, 4 and 6 shall be delineated with a split rail fence and sinage per TMC 18.45.060 6.'Pw✓ u - Install all required site improvements, including those proposed in the application and those identified above as conditions of approval. You will need to obtain all required permits prior to beginning any construction. For water and sewer permits, contact the individual provider District. For City of Tukwila utilities, site grading, and access driveways contact Tukwila Public Works at (206) 433 -0179. The storm water vault and retaining walls over 4' high will require separate building permits. s. Submit a set of recording documents in either legal or record of survey format that meet the King County Recorder's requirements and contain the following items: 1. A survey map as described in the application checklist that is consistent with all of the conditions of approval. The surveyor's original signature must be on the face of the plat. 2. Existing and proposed legal descriptions for all lots. 3. Legal description of the access/utility easements. 4. Joint Maintenance Agreements for the easements, drainage system and open space tract. 5. Legal description of the wetland buffer easement across lots 3, 4 and 6. APPEALS This approval decision is appealable to the Hearing Examiner. One administrative appeal of the decision on the short plat is permitted. Any person wishing to challenge either the conditions which were imposed by the MDNS decision or the failure of the Department to impose additional conditions in the MDNS may raise such issues as part of the appeal . If no valid appeals are filed within the time limit the decision of the Department will be final. In order to appeal the decision a written notice of appeal must be filed with the Department of Community Development within 21 days of the issuance of the Notice of Decision (5/27/05). The requirements for such appeals are set forth in Tukwila Municipal Code 18.116. Nora Gierloff Page 4 05/04/2005 Q: \FOST_RDG \NOD for SP.doc 2. The address and phone number of the appealing party; and if the appealing party is a corporation, association or other group, the address and phone number of a contact person authorized to receive notices on the appealing party's behalf. 3. A statement identifying the decision being appealed and the alleged errors in the decision. The Notice of Appeal shall state specific errors of fact or errors in application of the law in the decision being appealed; the harm suffered or anticipated by the appellant, and the relief sought. The scope of an appeal shall be limited to matters or issues raised in the Notice of Appeal. Any appeal shall be conducted as an open record hearing before the Hearing Examiner. The Hearing Examiner's decision on the appeal is the City's final decision. A party who is not satisfied with the outcome of the administrative appeal process may file an appeal in King County Superior Court from the Hearing Examiner's decision pursuant to the procedures and time limitations set forth in RCW 36.70C. An appeal challenging a DNS, an MDNS or an EIS may be included in such an appeal. 2. Final Approval Expiration The next step is to install the required site improvements, comply with the conditions of approval and submit the necessary documents (survey, legal descriptions, and other required paper work). After the documents have been found to be in order, and the all of the requirements of the short plat have been met, the Chair of the Short Subdivision Committee signs your paperwork which constitutes a grant of final approval. No permits for the construction of houses on the site will be granted prior to the recording of the short plat. All taxes and fees assessed against the property must be current prior to final approval. Please check with the King County Assessor's Office and the City of Tukwila Finance Department prior to submitting final mylars. The final approved documents must be filed with the King County Department of Records by May 6, 2006, one year from the date of this preliminary approval or the application will expire. The City may grant a single one year extension if requested in writing prior to the expiration date. 3. Recording The signature- of the Chairman of the Short Subdivision Committee certifies that your application is ready for recording. It is your responsibility to record the City approved documents with the King County Department of Records. You will need to pay the recording fees and submit your approved original drawings to King County, see the Recording Nora Gierloff Page 5 05/04/2005 Q:\FOST_RDG \NOD for SP.doc Sincerely, Ja1/4 k Pace Enclosures Procedures handout. The BLA is not complete until the recording occurs and copies of the recorded documents are provided to the Department of Community Development. After recording, the County returns the recorded original to the City of Tukwila within 4 -6 weeks, at which time your BLA is considered complete. You can shorten this processing time by hand - delivering a copy of the recorded document to the project planner. Acting Chair, Short Subdivision Committee cc: Jim Morrow, Public Work Director Nick Olivas, Fire Chief Marilyn Mettlin Joe and Gerri Goss Devon Klein Ann Griffith King County Assessor, Accounting Division Department of Ecology, SEPA Division e in (please initial your approval) ial your approval) Nora Gierloff Page 6 04/27/2005 Q: \FOST_RDG \NOD for SP.doc Dept. Of Community Development City of Tukwila AFFIDAVIT OF DISTRIBUTION I, C e " . 0 HEREBY DECLARE THAT: Notice of Public Hearing Notice of Public. Meeting Board — of Adjustment Agenda Pkt Board of Appeals Agenda Pkt Planning Commission Agenda Pkt Short Subdivision Agenda Shoreline Mgmt Permit FAX To Seattle Times Classifieds Mail: Gail Muller Classifieds PO Box 70 - Seattle WA 98111 Determination of Non - Significance Mitigated Determination of Non Significance Determination of Significance & Scoping Notice Notice of Action Official Notice Notice of Application Notice of Application for Shoreline Mgmt Permit Was mailed to each of the addresses listed on this year 20 c Project Name: F-77-S.74 ( 4dge Deekyr4e/-6,74- Project Number: L X3 - D3 y Mailer's Signature: /44177X 4 YV ( Person requesting mailing: P:GINAWYNETTA/FORMS /AFFIDAVIT -MAIL 0829/003:31 PM Impression antibourrage et a s6chage rapide Utilisez le gabarit 5960 "c Orelio Ray & Patricia Vomenici 4822 S 138th St Tukwila, WA 98168 Greg Deano 4628 S 138th St Seattle, WA 98168 Hiep Trinh 14011 Macadam Rd S Tukwila, WA 98168 Joan Custodian & Sarah Meryhew 4431 S 148th St Tukwila, WA 98168 Eleanor Rupp 4611 S 140th St Seattle, WA 98168 Jerald & Santora Leishman Sajjad Khan Hilltop Tukwila School District 24719 43rd Ave S 18019 NE 109th Ct 4640 S 144th St Kent, WA 98032 Redmond, WA 98052 Tukwila, WA 98168 Corp Catholic Archbishop 910 Marion St Seattle, WA 98104 Joan Sleight 4510 S 184th St Seattle, WA 98188 A R Quraishi 8529 20th Street Ct W Tacoma, WA 98466 Rhonda Clenna 13765 Macadam Rd S Seattle, WA 98168 Mu0965 ®AUAV 0 Harchand Singh & Ram Pal 19225 102nd Ave SE Renton, WA 98055 Joan Sleight 4510 S 184th St Seattle, WA 98188 Timothy & Alice Forhan 14003 Macadam Rd S Seattle, WA 98168 John Nalewajek 104 E Race St Yakima, WA 98901 Corp Catholic Archbishop 4415 S 140th St Seattle, WA 98168 Jeffrey Bauman 18014 NE 125th St Redmond, WA 98052 Floyd & Doreen Hunt 18122 40th Ave S Seattle, WA 98188 Aa3AV-09-008 wortiaAe 4MAM Steven Miller 13811 Macadam Rd S Tukwila, WA 98168 Paul Szewczyk 13749 Macadam Rd S Tukwila, WA 98168 www.avery.com 1-800-GO-AVERY 1111111111111111111111 '0 AVERY® 5960""c Doug & Cindy Lorkin 14435 S 259th St Des Moines, WA 98198 Anne Patricia Griffith 4529 S 140th St Seattle, WA 98168 Jerald & Santora Leishman 18019 NE 109th Ct Redmond, WA 98052 Alvin Tolonen 14075 35th Ave S Seattle, WA 98168 Evelyn & Udt Santora 4617 S 140th St Seattle, WA 98168 Thelma Davis PO Box 69043 Seattle, WA 98168 Sukhchain Sandhu 12813 53rd Dr SE Everett, WA 98208 Jon Beahm 9813 23rd Ave NW Seattle, WA 98117 Craig Hittle 13757 Macadam Rd S Tukwila, WA 98168 wi0965 31V1dW31®I JaAv asn 6ugupd eau a6pnws pup wpg Impression antibourrage et h s6chage rapide Utilisez le gabarit 5960 Melynda & V Adele Wisdom Stephan Loubser 13510 Prosperity Dr #25C Silver Spring, MD 20904 Gerrilynn Goss 4525 S 139th St Tukwila, WA 98168 wi0965 ®A213/1V Adrian Castro Maldonado Maria Del Romero 4514 S 140th St Tukwila, WA 98168 www.avery.com 1- 800-GO -AVERY Jakub Huremovic & Suada Huremovi 4526 S 140th St Tukwila, WA 98168 A2l3AV-O9-008 AVERY® 596o.. Brian & Imogene Martz 4526 S 140th St Seatac, WA 98168 M41096S ILY1d1N31 eirdemi asn wo7 i(aaJwMMM r 6upul td awl a6pnws pue we Impression antibourrage et fi s6chage rapide Utillsez le gabarit 5960MC Cyril Mork 3594 Marquette St Santa Clara, CA 95051 Thomas & Ellen Gengler 13727 Macadam Rd S Tukwila, WA 98168 Roger Bauer 13711 45th Ave S Seattle, WA 98168 David Bailey 4430 S 139th St Seattle, WA 98168 Devon Klein PO Box 733 Kent, WA 98035 Erik Fletcher 13738 45th Ave S Tukwila, WA 98168 Jerry Mettlin 4514 S 139th St Seattle, WA 98168 Jerry Mettlin 4514 S 139th St Seattle, WA 98168 Paul Vaughn 4531 S 137th St Tukwila, WA 98168 Rufma Quitco 4430 S 140th St Tukwila, WA 98168 ru096S ®A1 ]Ad Matthew Wilkins & Elize Fox 13735 Macadam Rd S Tukwila, WA 98168 Chris & Merry Westwood 13729 45th Ave S Tukwila, WA 98168 Juan Rojas 13703 45th Ave S Seattle, WA 98168 Thomas Brummel 4517 S 137th St Seattle, WA 98168 Heather Parshall 13722 45th Ave S Seattle, WA 98168 Keith Parks 13748 45th Ave S Tukwila, WA 98168 Jerry Mettlin 4514 S 139th St Seattle, WA 98168 Benito Cervantes Jr. 13723 Macadam Rd S Tukwila, WA 98168 John Mcdonough 4521 S 137th St Seattle, WA 98168 Donald Patterson 13908 1/2 45th Ave S Tukwila, WA 98168 www.avery.com 1-800-GO-AVERY E C AVERY® 5960"'c John Herzog 1200 Westlake Ave N #401 Seattle, WA 98109 Patricia Bauer 13715 45th Ave S Seattle, WA 98168 Robert Taylor 4420 S 139th St Seattle, WA 98168 Liesi Bohn 13710 45th Ave S Tukwila, WA 98168 Richard & Kay Larson PO Box 68267 Seattle, WA 98168 William Looney PO Box 1435 Tacoma, WA 98401 Jerry Mettlin 4514 S 139th St Seattle, WA 98168 Douglas Barlow & Karen Jackstadt 13715 Macadam Rd S Seattle, WA 98168 W C Taylor 4418 S 140th St Seattle, WA 98168 Ronald & Deborah Isaacson 4506 S 140th St Seattle, WA 98168 A113AV-O9-008 _,_.,` wa096S 31VldIN31®LIaAV asf worManeMaMM 111111111111 6urtupd eaj afipmus pue wer Jam Free Printing Use Avery® TEMPLATE 5160® 609LS ®AU73Att Mrs. Ann Griffith 4529 So. 140 St. Tukwila, WA 98168 Ms. Marilyn Mettlin 4514 So. 139 St. Tukwila, WA 98168 Joe & Gerri Goss 4525 So. 139 St. Tukwila, WA 98168 Ati3AV-O9 utortiane•MMAAAA www.averycom 1- 800-GO -AVERY Devon Klein PO Box 733 Kent, WA 98035 CA AVERY® s16o® ®091S 31V14W31®AtanV asn 6uduud eau wer COMMENTS: ; . .. ( (,••' Type of Inspecti t ? ' A' 1 (x r t Date Called: - f {a ,*., ! Date Wanted: j f l ,. "'E .' ei c (' et4„.0 -ta . h .�3 . e ) 3 l i •it +,. -.....° j( i 4. 1 t ( . .{ kt, .. 1.4. _ lf "` e‘4 1 ..t:. j §' f Project: ‘. , I 3 / ,,,,,f ; . .. ( (,••' Type of Inspecti t ? ' A' 1 (x r t Date Called: Special Instructions: ,, 1 ? L . - ! Date Wanted: Cj Y >lequester: Phone No: ) A -. 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 El Approved per applicable codes. Corrections required prior to approval. El $60.00 REINSPECTION FEE REQUIRED. Prior to inspection, fee must be paid at 6300 Southcenter Blvd., Suite 100. Call to schedule reinspection. Receipt No.: !Date: 1 COMMENTS: ) , i Type oWlspecpon: r i A i \ i \ yrk k ' t Address: t( , i lj ST Date ■sll . C . A.. 4., _, , - Li C C-' , kr' RI IT 1 Date Wanted: . a.m. 13'n1. Requester: t sA3 0 t T I t \ ... t....:. Ti t CT: . .i.f....r1 , 0 . „„) tr . <,....., . ( )CL _, — L , e- Li-1 .. Project: ) ( 1 , e ) , i Type oWlspecpon: r i A i \ i \ yrk k ' t Address: t( , i lj ST Date ■sll 1 ...- Specia Instructions: ) () ') i 4- Date Wanted: a.m. 13'n1. Requester: Phone No: '7 f) ' 1 INSPECTION RECORD Retain a copy with permit INSPECTION NO. CITY OF TUKWILA BUILDING DIVISION 6300 Southcenter Blvd., #100, Tukwila, WA 981 88 PERMIT NO. (206)431-3670 p l Corrections required prior to approval. El Approved per applicable codes. Inspector: Date: $60.00 REINSPECTION FEE REQUIRED. Prior to inspection, fee must be paid at 6300 Southcenter Blvd., Suite 100. Call to schedule reinspection. Receipt No.: Date: COMMENTS: Protect: 1 R ( `�- f _ Type of Inspec on: s ` , A. ,, 'i . .if Address: 4(0i SI 5,, FT 14t) , sr Date Called: Special Instructions: .t / r I Date Wanted: r /.m. _ l I i w R equester: Phone No: -r 2 .5 — 3 171 Protect: 1 R ( `�- f _ Type of Inspec on: s ` , A. ,, 'i . .if Address: 4(0i SI 5,, FT 14t) , sr Date Called: Special Instructions: .t / r I Date Wanted: r /.m. _ l I i w R equester: Phone No: -r 2 .5 — 3 171 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 El Approved per applicable codes. Corrections required prior to approval. Inspector: Date: ri $60.00 REINSPECTION FEE REQUIRED. Prior to inspection, fee must be paid at 6300 Southcenter Blvd., Suite 100. Call to schedule reinspection. Building Neighborhoods Since 1986 Rehabitat Northwest Rehabitat Northwest, Inc L04 -085 — Foster Ridge 5 -lot December 18, 2007 License #: REHABN•016MA The following revisions have been made to the Mitigation Plan per comments from the Environmental Biologist for the City of Tukwila; 'JAN L �LOP • Added a note to the General Notes to ensure the Landscaping contractor selected to install the Wetland Enhancement plan receive a full copy of the Wetland Buffer Enhancement Plan as prepared by Sheldon & Associates prior to installation. • Changed reference along Lot 6 from "Buffer Enhancement Area" to "Buffer Restoration Area ". • Revised Proposed Buffer Restoration area to reference "Open Canopy Grid ". • Removed reference in the Wetland Maintenance Schedule to Administer Pesticide. The evasive vegetation will now be manually removed. I believe we have addressed all the issues identified by the Environmental Biologist. Please contact me if you have any further questions or concerns. Chad Detwiller Rehabitat Northwest, Inc 3601 W. Marginal Way SW Seattle, Washington 98106 Steve Detwiller Builder /Developer Ofc 206.932.7355 Fax 206.933.7355 steve@rehabitatnorthwest.com 20071011001093 PAGE001 OF •05 10/11/200 12:41 KING COUNTY, NA Wheti recorded return to: Rehabitat Northwest Inc . • , . 3601 W Marginal Way SW Seattle. WA 9006 . 4 7.*4 ...... • LIECeARATIO14 OF EWSEMENZAND MAINTENANCE AGREEMENT GrantorAt.efiabitii4:orthwe'st, mo Grantee: Rehabitat$ortlaftsf, Inc ... Abbreviated Legal Deieription: 1 of NE 'A C.)f 'A, Sec. 15 Twp. 23N, Rge. 4E, W.M. KingtoUtty,, •• •• •• •• Assessor's Tax Parcel Nutyibeis: 32292006 Reference Numbers of Documents Assigned or Released 'N/A The parties to this Agreement are the owners.444-1-45;:Tukivilzi Shaft Plat / No L04-085, filed on the day of 2007, unclr King County Auditor's File No , and legally describecfas follows: •• „ . That Poition of Government Lot 1, Section 15, Township 23 North, Range • • ::4 East..W.M., in King County, Washington, described iS C.Ongenctnot the Southwest Corner of said Lot 1; Therke 001°30:53" for a distance of 30.00 Feet to the True Point of Beginning, *Thence S,::87°...18'48" Parallel with the south line of said Lot 1, a distance of 3 1748 Feet; Thence N9°49'67.' EforA distance' oft04.79 Feet; Thence N 29!?00.',315" for a distance of 1 .Feet; Thence N 82°20'067W fs3r,ailistOce of 244.54 . e . et; Thence N 33°26'06" *V fopa. distance 4141.82 Thence S 54°20'54" W'fOira. cli4anCe of 65,26 Feet; Thence N 88°29'07" W for it.distance Thence S 01°30'53" W for a distance of 51.05 Feet tO:tlie True POint of Beginning. • • • , • (Also known as Lot I of City of Tukwila BLA tecorde4 .itrider . ' - ....... ...'" . .. King County Recording Number 20060712900003). ;:.. '.... .:. .:"...••: . . • . .: . . • ,, . Declaration of Joint Maintenance & Easement Agreement-Wetland Tract 'A" Page I of 5 .: ..• .: . .• For valuable consideration received, receipt of which is hereby acknowledged, Grantor hereby conveys, creates, declares and imposes an easement for ingress and egress over, along, across and under the following described real property: Tract A. ''That portjorl ofG.dvemment Lot 1, Section 15, Township 23 North, Range 4 East W M., n King County,, Washington, Described as Follows: Commencing ttthe Southwest torner of said Lot 1; .'hence N 01 °30'53" E long West line of Said Lot 130.00 Feet; Thence S ; :87 ° E along a line parallel and 30 Feet North. of'the South:line of said,Lot 1.:a distance' of 181.05 feet to the TRUE POINT•OOF $'EGINNJNG ` Thence confinuiiig S • 87 °48.'48", E' along said parallel line 136.63 feet; Thence N 59 °49'07" Thence N 29 °00'36 •:W, 1 feet; Thence N 82°20'06" W, 244. • '> Thence N 33 °26'06" W, 141,,82 feet; .' ' S 54 °20'54" W, 65.2 "feet; Thence N 88 °29'08" W, 30.00 feet; Vence S 01 °30'53" W, 71.24 feet; thence S 48°35'16" E, 86.51 feet; 'hence.S 65 °29'36" E, 35.76 feet; /Thence East, 27.37 feet; . ,S 5037'39" E, 36.83 feet; ThenceS 4,8 °18' 1,9" E, 35.89 feet; Thence S 4 "'W, 1136 feet; Thence 576 °48'29 "W; 43.51 feet; . '.T;-Thence : :S $3°24 W, 38 6I:feet, thence Thence /4.77 <S1" E27.48 fegt; Thence S 1.2°53'1g7 E, 74,25 feet, niore"or: to the TRUE POINT OF BEGINNIWGh 2. This easement shall be non - exclusive and perpetual and shall run with the land and benefit the heirs, successors, transferees and assigns of2he owners of Lots 1 -6 Tukwila Short Plat No L04-085, above This easement shall not be construed as personal. • 3. The parties, their heirs, successors, and assigns tlt all cosh of:..: maintenance and repair occasioned by normal wear aid tear of the•easement shall be borne in equal shares by the parcels served thereby, except. that each Declaration of Joint Maintenance & Easement Agreement - Wetland Tract Page 2 of 5 party hereto shall indemnify and hold the others harmless from all damage • : • • caused solely by that party. The terms and conditions of this and subsequent paragraphs concerning the use and maintenance of the easement shall not be '..construed as personal but shall run with the land for the benefit, burden or all ••' •.• : successors, transferees or assigns on either side of this agreement. :An to gave maintenance and/or repair work done on the easement shaj6btain' .4 minimum of 2 bids for the work, and shall notify the •• • • • • • • • .„ ..• other owner in theialat . 16 writing via certified mail•of the time and place of a meeting g!, ciinsider'afavote,gpsifithe proposal. A vote of 5 of the 6 lot ownersiihall be td-appfgv0he proposed maintenance or repair. If a lojs,6wne blemore'ithan One•kiion, the approval of all owners of said lot shall be required to constitute an approval for that lot. •••• • '.•••••:. 5. If said repair or maintenance proposal is approved, then each owner shall be assessed a one-iixth:thati ofihi total bill for the work. If after 30 days after written demand any owner's assessment remains clue and unpaid, then each owner hereby consentilg.anct:grai4ts the otheiowtieu..thelight to place a lien and foreclose said hen, pursuant terReW 60:04,:igainst the nonpaying wrier s lot for the outstandinil?alanceitoiether wittilhestkof preparation ansirecording of said lien, includlia0;nable attaiii6ysfees . • ,• , •-•-•• •,. • • • •• . • .• • •• .• •• •• •• •• •• ,• • • .• • .• .• • .••• Declaration of Joint Maintenance & Easement Agreement-Wetland Tra6t.M" Page 3 of 5 STATE OF 'WASHINGYON C OUNTY OF giNQ / • ..:,• I certify tkat.l or have sati'sfactoES thatet'lac7( I if/" • the person who appearecl me.,:and said person acknowledged that he/she signed this instrument on .4atkkatecithaVhd.ihe was authorized to execute the instrument and acknowledged it as the _ Finance Manager .' of Rehabitat Northwest, Inc , a'coria9fati9rx;:.to be the free voluntary act of such party for the uses and purposes mentioned in this instrOmciit. : ..GIVEN under my hand and official seal daY of .• 0 N ta / i ! I sTAR A. VtIn 1 64 .... ::: •.:.,..... _ • A. it, i ;:. • ! I "- 0 sZ E . .. .. •• ..-.... ... -:•,•• . .. , ,* 1. ..t. •::..:. ,''. .-. . 1,,,S .•::... - ./ :: sii4 - 4 . • - ,,, %%I ..,,...„ s ..y Iiillw. • .... .• '...,„. .:.''' .::' •::::: ..:' ..i: .. .:... ...::...s‘:... • . •• • • .• • NotaryTublio and- r the State hf ington, reidhg at eaS (4/V . Myappoinuns xpires5 - 03 .... Printed name • .,• Declaration of Joint Maintenance & Easement Agreement-Wetland Tract.„"A" Page 4 of 5 ...., ,:. ... .:... Exhibit "A" Declaration of Joint Maintenance & Easement Agreement •::.. ...• : . • .• ...... :: See IllustrAtion below hereto and by this reference made a part hereof ,.... , '',..,,,.........-' .::. Except as may be otherwise set forth herein, Grantee's rights shall be exercised upon that .....:' . properly (thytaiin' ent Area" herein) located as constructed, extended or .":......:,.:-•'. relocated..'bn 9te 1 of the Property occupied by existing bUildiiig::fooOngs foOdations;:-.4nd/pi sul5Surface structures. .,. , . Parcel #3229200090 • Declaration of Joint Maintenance & Easement Agreement-Wetland Triet-"A",: Page 5 of 5 / TO: Rehabitat Northwest, Inc. 3601 West Marginal Way, SW Seattle, WA 98106 Attn: Chad Ref.# Pedersen Dated as of August 16, 2007 at 8:00 a.m. JMB PACIFIC NORTHWEST TITLE 215 Columbia Street Seattle, Washington 98104 SUPPLEMENTAL REPORT #2 PNWT Order Number: 649321 OWNER: Richard Pedersen The following matters affect the property covered by this order: • A Full Update of the Short Plat from June 11, 2007 through August 13, 2007 at 8:00 a.m. has disclosed the following: • Supplemental 1 is hereby incorporated. NO CHANGES OF RECORD. • There has been no change in the title to the property covered by this order since June 11, 2007, EXCEPT the matters noted hereinabove. PACIFIC NORTHWEST TITLE COMPANY By: Curtis Goodman Title Officer Phone Number: 206 - 343 -1327 TO: Rehabitat Northwest, Inc. 3601 West Marginal Way, SW Seattle, WA 98106 Attn: Chad Ref.# Pedersen (continued) a& PACIFIC NORTHWESC TrILE Company of Waahinlpu,. Inc. 215 Columbia Street Seattle, Washington 98104 SUPPLEMENTAL REPORT #1 PNWT Order Number: 649321 OWNER: Richard Pedersen The following matters affect the property covered by this order: • A Full Update of the Short Plat Certificate from March 30, 2007 through June 11,2007 at 8:00 a.m. has disclosed the following: • The following has been added as paragraph 10 and 11: 10. SENSITIVE AREA COVENANT AND HOLD HARMLESS AGREEMENT AND THE TERMS AND CONDITIONS THEREOF: RECORDED: May 8, 2007 RECORDING NUMBER: 20070508000842 11. DEED OF TRUST AND THE TERMS AND CONDITIONS THEREOF: GRANTOR: Richard S. Pedersen and Donna M. Pederson, husband and wife TRUSTEE: James Stewart Thayer BENEFICIARY: Rehabitat Northwest, Inc., a Washington corporation AMOUNT: $38,375.00 DATED: May 3, 2007 RECORDED: May 8, 2007 RECORDING NUMBER: 20070508001982 The amount now secured by said Deed of Trust and the terms upon which the same can be discharged or assumed should be ascertained from the holder of the indebtedness secured. SUPPLEMENTAL TITLE REPORT Page 2 • The following paragraph has been amended to read as follows: 4. GENERAL AND SPECIAL TAXES AND CHARGES: FIRST HALF DELINQUENT MAY 1, IF UNPAID: SECOND HALF DELINQUENT NOVEMBER 1, IF UNPAID: YEAR 2007 TAX ACCOUNT NUMBER: 322920- 0090 -06 LEVY CODE: 2413 CURRENT ASSESSED VALUE: Land: $194,000.00 Improvements: $0.00 By: Curtis Goodman Title Officer Phone Number: 206 - 343 -1327 Order No. 649321 AMOUNT BILLED GENERAL TAXES: $2,371.49 SPECIAL DISTRICT: $1.77 $9.99 TOTAL BILLED: $2,383.25 PAID: $1,191.63 TOTAL DUE: $1,191.62 • Except as to the matters reported hereinabove, the title to the property covered by this order has NOT been re- examined Dated as of June 18, 2007 at 8:00 a.m. PACIFIC NORTHWEST TITLE COMPANY GENTLEMEN: CHARGE: TAX: PACIFIC NORTHWEST TITLE COMPANY OF WASHINGTON, INC. 215 Columbia Street Seattle, Washington 98104 -1511 Senior Title Officer, Mike Sharkey (mikesharkey®pnwt.com) Title Officer, Curtis Goodman (curtisgoodman @pnwt.com) Assistant Title Officer, Charlie Bell (charliebell@pnwt.com) Unit No. 12 FAX No. (206)343 -1330 Telephone Number (206)343 -1327 Rehabitat Northwest, Inc. 3601 West Marginal Way SW Seattle, Washington 98106 Attention: Chad Your Ref.: Pedersen $250.00 $ 22.25 SHORT PLAT CERTIFICATE SCHEDULE A Title Order No. 649321 CERTIFICATE FOR FILING PROPOSED PLAT In the matter of the plat submitted for your approval, this Company has examined the records of the County Auditor and County Clerk of King County, Washington, and the records of the Clerk of the United States Courts holding terms in said County, and from such examination hereby certifies that according to said records the title to the following described land: As on Schedule A, page 2, attached. IS VESTED IN: RICHARD S. PEDERSEN and DONNA W. PEDERSEN, husband and wife SUBJECT TO THE FOLLOWING EXCEPTIONS: As on Schedule B, attached hereto. RECORDS EXAMINED TO: March 30, 2007 at 8:00 a.m. TOTAL CHARGE: $272.25 PACIFIC NORTHWEST TITLE COMPANY OF WASHINGTON, INC. Mike Sharkey Senior Title Officer Unit No. 12 Order No. 649321 SHORT PLAT CERTIFICATE SCHEDULE A Page 2 The land referred to in this certificate is situated in the State of Washington, and described as follows: That portion of Government Lot 1, Section 15, Township 23 North, Range 4 East, W.M., in King County, Washington, described as follows: Beginning at the southwest corner of said Government Lot 1; Thence south 89 ° 56'42.5" east along the south line of said Government Lot, 270 feet; Thence north 57 ° 41'12.5" east 362.11 feet, more or less, to the southwesterly margin of County Road (Macadam Road South); Thence continuing northwesterly along the southwesterly marginal line of said road 12 feet; Thence south 57 ° 41'12.5" west 100.81 feet to Point A; Thence north 31 ° 08'30" west 156.39 feet; Thence north 84 ° 28' west 244.53 feet; Thence north 35 ° 34' west 140.46 feet; Thence south 54 west 65.07 feet to intersect a line 30 feet east of and parallel to the west line of said Government Lot 1; Thence south 89 ° 19'15" west to the west line of said Government Lot 1; Thence south along said west line of Government Lot 1, to the point of beginning; (BEING KNOWN AS Lots 17 through 27, Block 1, and Lots 1 through 7, Block 2, Hellwig's Addition to Foster, according to the unrecorded plat thereof; TOGETHER WITH vacated streets adjoining); EXCEPT any portion lying northeasterly of a line bearing south 31 ° 08'30" east running from Point A to the southeasterly line of vacated alley; (ALSO KNOWN AS Lot 1, City of Tukwila Lot Consolidation L04 -033 recorded under Recording Number 20060712900003). END OF SCHEDULE A GENERAL EXCEPTIONS: SHORT PLAT CERTIFICATE Schedule B Order No. 649321 1. Rights of claims of parties in possession not shown by the public records. 2. Public or private easements, or claims of easements, not shown by the public record. 3. Encroachments, overlaps, boundary line disputes, or other matters which would be disclosed by an accurate survey or inspection of the premises. 4. Any lien, or right to a lien, for services, labor or material heretofore or hereafter furnished, imposed by law and not shown by the public records, or Liens under the Workmen's Compensation Act not shown by the public records. 5. Any title or rights asserted by anyone including but not limited to persons, corporations, governments or other entities, to tide lands, or lands comprising the shores or bottoms of navigable rivers, lakes, bays, ocean or sound, or lands beyond the line of the harbor lines as established or changed by the United States Government. 6. (a) Unpatented mining claims; (b) reservations or exceptions in patents or in Acts authorizing the issuance thereof; (c) water rights, claims or title to water. 7. Any service, installation, connection, maintenance, capacity, or construction charges for sewer, water, electricity or garbage removal. 8. General taxes not now payable or matters relating to special assessments and special levies, if any, preceding the same becoming a lien. 9. Indian tribal codes or regulations, Indian treaty or aboriginal rights, including, but not limited to, easements or equitable servitudes. SPECIAL EXCEPTIONS: Order No. 649321 SHORT PLAT CERTIFICATE SCHEDULE B Page 2 1. EASEMENT AND THE TERMS AND CONDITIONS REFERENCED THEREIN, INCLUDING, BUT NOT LIMITED TO, THE FOLLOWING: GRANTEE: Val Vue Sewer District PURPOSE: Sewer pipeline and lines AREA AFFECTED: Southerly portion RECORDED: May 16, 1978 RECORDING NUMBER: 7805161076 2. COVENANTS, CONDITIONS, RESTRICTIONS AND EASEMENTS CONTAINED IN LOT LINE ADJUSTMENT, COPY ATTACHED: RECORDED: July 12, 2006 RECORDING NUMBER: 20060712900003 3. SENSITIVE AREA COVENANT AND HOLD HARMLESS AGREEMENT AND THE TERMS AND CONDITIONS THEREOF: RECORDED: April 21, 2006 RECORDING NUMBER: 20060421000207 4. GENERAL AND SPECIAL TAXES AND CHARGES: FIRST HALF DELINQUENT MAY 1, IF UNPAID: SECOND HALF DELINQUENT NOVEMBER 1, IF UNPAID: YEAR: 2007 TAX ACCOUNT NUMBER: 322920 - 0090 -06 LEVY CODE: 2413 CURRENT ASSESSED VALUE: Land: $194,000.00 Improvements: $0.00 AMOUNT BILLED GENERAL TAXES: $2,371.49 SPECIAL DISTRICT: $1.77 $9.99 TOTAL BILLED: $2,383.25 PAID: $0.00 TOTAL DUE: $2,383.25 5. DEED OF TRUST AND THE TERMS AND CONDITIONS THEREOF: GRANTOR: Richard S. Pedersen and Donna M. Pedersen, husband and wife TRUSTEE: Chicago Title Insurance Company BENEFICIARY: Frontier Bank (continued) AMOUNT: DATED: RECORDED: RECORDING NUMBER: TRUSTEE: BENEFICIARY: AMOUNT: DATED: RECORDED: RECORDING NUMBER: 7. LIEN: CLAIMED BY: AGAINST: RECORDED: January 5, 2007 RECORDING NUMBER: 20070105001661 8. LIEN: CLAIMED BY: AGAINST: $245,000.00 December 21, 2006 December 22, 2006 20061222001487 RECORDED: January 12, 2007 RECORDING NUMBER: 20070112001178 (continued) Order No. 649321 SHORT PLAT CERTIFICATE SCHEDULE B Page 3 The amount now secured by said Deed of Trust and the terms upon which the same can be discharged or assumed should be ascertained from the holder of the indebtedness secured. 6. DEED OF TRUST AND THE TERMS AND CONDITIONS THEREOF: GRANTOR: Richard S. Pedersen and Donna M. Pedersen, husband and wife Chicago Title Insurance Company Frontier Bank $74,000.00 September 26, 2006 September 29, 2006 20060929000814 The amount now secured by said Deed of Trust and the terms upon which the same can be discharged or assumed should be ascertained from the holder of the indebtedness secured. Cascade Sawing & Drilling, Inc. Keith Olson Excavating AMOUNT: $467.50, together with interest and /or costs, if any Quilceda Paving & Construction, Inc. Dick and Donna Pedersen AMOUNT: $38,283.97, together with interest and /or costs, if any 9. LIEN: CLAIMED BY: AGAINST: AMOUNT: RECORDED: January 17, 2007 RECORDING NUMBER: 20070117001471 Title to this property was examined by: Rob Chelton can/9705131042 END OF SCHEDULE B Order No. 649321 SHORT PLAT CERTIFICATE SCHEDULE B Page 4 Cuz Concrete Products, Inc. Keith Olsen Construction $4,868.85, together with interest and /or costs, if any Any inquiries should be directed to one of the title officers set forth in Schedule A. Heliwig's Addition to Foster (unrecorded) A \ PACIFIC NORTHWEST TITLE Order No . 649321 Company of Washington, Inc. IMPORTANT: This is not a Plat of Survey It is furnished as a convenience to locate the land indicated hereon with reference to streets and other land. No liability is assumed by reason of reliance hereon. N COMMENTS: Type of I pection: � 1�.��,.r �i, Address : 13 5t t y6 -S Date Called: 064)40 7 Special Instructions: Date Wanted: 00 �21 X07 m. p.m> Requester , a Phone No: X76 - 9,30-- - 7355 or l ..� - ...��— c` — ,F. . )1 r;' P_...Y+hJi.,T' f ; G „..-1,-- I. }Q."1- t ✓��` • i- • .^ s - v • (: P -�,.:a •-x �- , i L- n ; ,�f' S C1 -. te, e l%' G- re/".. ; 1 .t 77 l /r , i 1 }` / ,r ,.� 4- I i ) ice r , . �,� ;, i , �, r_, tom i I �,. -� �; =� ,(--- 1 . • Project• � r�Stf, ✓ 1 Type of I pection: � 1�.��,.r �i, Address : 13 5t t y6 -S Date Called: 064)40 7 Special Instructions: Date Wanted: 00 �21 X07 m. p.m> Requester , a Phone No: X76 - 9,30-- - 7355 or INSPECTION NO. CITY OF TUKWILA BUILDING DIVISION 6300 Southcenter Blvd., #100, Tukwila, WA 98188 Approved per applicable codes. $58.00 REINSPECTION FEE REQUIRED. Prior to inspection, fee must be paid at 6300 Southcenter Blvd.. Suite 100. Call the schedule reinspection. (Receipt No.: 'Date: i INSPECTION RECORD Retain a copy with permit tOt') 3 -la 6 PERMIT NO. 206)431- .5 9 - �a�1� Corrections required prior to approval. DATE: PROJECT: PERMIT NO: rnr PUBLIC WORKS DEPARTMENT COMMENTS www.ci.tukwila.wa.us Development Guidelines and Design and Construction Standards July 26, 2007 Foster Ridge Plat 14424 48 Place S L04 -085 PLAN REVIEWER: Contact Joanna Spencer (206) 431 -2440 if you have any questions regarding the following comments. 1) Foster Ridge plat infrastructure was constructed under PW03 -106 permit. As of today PW03 -106 permit conditions 13 (last item only), 19, 22, 24, 25 are still pending. Pavement mitigation fees can not be assessed until As -built plans are submitted by your engineer of record. It's possible that As -built plans were submitted to individual utility districts, however Public Works has not received any As- builts. Additional easements might be required, however determination can not be made until PW receives As- builts. 2) Open Space Tract legal description distance on page 2 does not match dimension shown on sheet 3of 3. 3) Open Space Tract ownership is not reflected in shortplat document. Does the City need access to open space tract, if yes a separate document shall be executed. 4) Val Vue Sewer District Easement recording no. 9705131042 is not reflected on the short plat. Please check with Val Vue if it's still a valid easement and if not have the district rescind it. Underground Storm Drain Easement recording no.20050214001458 shall be listed on plat map. s Parcel No.: 3229200090 Permit Number: PWO3 -1 O6 Address: Status: ISSUED Suite No: Applied Date: 11/07/2003 Tenant: FOSTER RIDGE Issue Date: 12/30/2005 1: ***FIRE DEPARTMENT CONDITIONS *** PERMIT CONDITIONS 2: Every building shall be accessible to Fire Department apparatus by way of access roadways with all- weather driving surface of not less than 20' wide and 13'6" vertical clearance. Access roads in excess of 150' shall be provided with an approved turn - around area. Access shall be within 150' of all portions of the buildings. (City Ordinance #1846) 3: All required hydrants and surface access roads shall be installed and made serviceable prior to and during the time of constructino. (UFC 901.3) 4: For all commercial, multi - family and single family subdivisions, hydrants shall be placed so that a hydrant is within 150 feet of any building and so that no point of a building (around it's perimeter) is greater than 300 feet from a hydrant. Distance from a hydrant to a building is measurd along the path of vehicular travel. (City Ordinance #1692) 5: Fire hydrants shall conform to American Water Works Association specifications C- 502 -54, it shall be compression type, equipped with two 2 1/2" N.S.T. hose ports and one 5" Storz pumper discharge port, and shall have a 1 1/4" Pentagon open -lift operating nut. (City Ordinance #1692) 6: An approved water supply capable of supplying the required fire flow for fire protection shall be provided to all premisese upon which facilities, buildings or portions of buildings are hereafter constructed or moved into or within the jurisdiction. When any portion of the facility or building protected is in excess of 150 feet (45,720 mm) from a water supply on a public street, as measured by an approved route around the exterior of the faiclity or building, on -site fire hydrants and mains capable of supplying the required fire flow shall be provided when required by the chief. (UFC 903.2) 7: The minimum fire flow and flow duration requirements for one- and two- family dwellings having a fire area which does not exceed 3,600 square feet (344.5 m2) shall be 1,000 gallons per minute (3785.4 Umin). Fire flow and flow duration for dwellings having a fire area in excess of 3,600 square feet (344.5 m2) shall not be less than that specified in Table A- III -A -1. Exception: A reduction in required fire flow of 50 percent as approved by the chief, is allowed when the building is provided with an approved automatic sprinkler system. (UFC Appendix III -A, sec. 5.1) 8: Utility and detention vaults, located in fire apparatus access roads, shall be designed to withstand an outrigger load of 68 lbs. per square inch. 9: Any overlooked hazardous condition and /or violation of the adopted Fire or Building Codes does not imply approval of such condition or violation. 10: These plans were reviewed by Marshal 51. If you have any questions, please call Tukwila Fire Prevention Bureau at (206)575 -4407. 11: * **PUBLIC WORKS DEPARTMENT CONDITIONS* ** 12: Applicant shall contact Public Works Project Inspector, Mr Greg Villanueva at (206) 431 -2442 or (206) 571 -6321 cell, minimum three days in advance to schedule a pre- construction meeting. Contractor shall notify Public Works Utility Inspector Mr. Greg Villanueva at (206)433 -0179 of commencement and completion of work at least 24 hours in advance. All inspection requests shall be done min. 24 hours in advance. doc: Conditions PW03 -106 Printed: 07 -26 -2007 S DETENTION/WATER QUALITY VAULT under a separate D05 -341 permit. Applicant shall apply for a Developers Extension through King County Water District #125 office at 2849 S 150th St in Tukwila. Applicant shall obtain sanitary sewer permit permit from Val Vue Sewer District. Applicant shall obtain a permit from US POSTMAster to install mail boxes. 13: Work affecting traffic flows shall be closely coordinated with the City Utilities Inspector. 14: The City of Tukwila has an undergrounding ordinance requiring the power, telecommunications, and cable service lines be underground. 15: Flagging, signing and coning shall be in accordance with MUTCD for Traffic Control. Contractor shall provide certified flagmen for traffic control. Sweep or otherwise clean streets to the satisfaction of Public Works (No flushing allowed). Notify City Inspector before 12:00 Noon on Friday preceding any weekend work. 16: Any material spilled onto any street shall be cleaned up immediately. 17: A copy of the Certificate of Insurance Coverage (minimum of $2,000,000 naming the City of Tukwila as additionally insured). 18: A bond in the amount of 150% times cost of work within the Public right -of -way and private property, made out to the City of Tukwila for possible property damages caused by activities shall be on file with the City. 19: The Land Altering Permit Fee is based upon an estimated 1,661 cubic yards of cut and 596 cubic yards of fill. If the final quantity exceeds this amount, the developer shall be required to recalculate the final quantity and pay the difference in permit fee prior to the Final Inspection. The applicant shall retain the geotechnical engineer to monitor, during construction, compliance with the recommendations in the geotechnical report, particularly site excavation, drainage installations, soils compaction and any other aspects of the construction. The geotechnical engineer shall make written, dated monitoring reports on the progress of the construction to the City Utility Inspector in a timely manner . Omissions of deviations from the approved plans shall be immediately reported to Public Works and submitted as a revision. The final construction monitoring report shall contain a statement from the geotechnical engineer that based on upon his or her professional opinion, site observations and testing during the monitoring of the construction, the completed development substantially complies with the recommendations of the geotechnical report. Prior to final permit sign -off applicant shall submit AS- BUILTplans (Mylars, paper copy and AUTO CADelectronic version on CD) per City of Tukwila Development Guidelines and Design and Construction Standards. 20: From October 1 through April 30, cover any slopes and stockpiles that are 3H:1 V or steeper and have a vertical rise of 10 feet or more and will be unworked for greater than 12 hours. During this time period, cover or mulch other disturbed areas, if they will be unworked more than 2 days. Covered material must be stockpiled on site at the beginning of this period. Inspect and maintain this stabilization weekly and immediately before, during and following storms. 21: From May 1 through September 30, inspect and maintain temporary erosion prevention and sediment at least monthly. All disturbed areas of the site shall be permanently stabilized prior to final construction approval. 22: Portions of the Asphalt Pavement shall be fit in the field. Coordinate with the City Utilities Inspector. Any disturbance (open cut) of the existing roadway pavement inside the City right of way is subject to pavement mitigation fee, amount to be determined by Public Works and pavement mitigation fee paid by the applicant prior to final permit sign -off. 23: Per 1998 King County Surface Water Drainage Manual, page 5-41, a brass or stainless steel plate shall be permanently attached inside each control structure. Engraved information on the plate shall include the following: a) Name and file number of project b) Name and company od (1) developer, (2) engineer, and (3) contractor doc: Conditions PW03 -106 Printed: 07 -26 -2007 c) Date constructed d) Date of manual used for design e) Outflow performance criteria f) Release mechanism size, type and invert elevation g) Elevation of overflow h) Recommended frequency of maintenance 24: Prior to final permit signoff the property owner shall execute a S 139th St /46th Ave S right of way encroachment agreement with provision for future 46th Ave S access to remaining parcels to the North. 25: Prior to final permit signoff the owner shall execute a S 140th St private access right of way encroachment agreement. pRIOR TO FINAL PERMIT SIGNOFF APPLICANT SHALL SUBMIT EASEMENT DOCUMENTS AND MAINTENANCE AGREEMENTS FOR ANY COMMON INFRASTRUCTURE FOR PUBLIC WORKS REVIEW AND APPROVAL. Applicant's Engineer shall prepare a Storm drainage Maintenance Manual which shall be recorded against the property prior to final Plat/PRD approval. 26: Any roadway pavement disturbance shall be subject to pavement mitigation fee to be assessed by Public Works and paid by the applicant prior to final permit approval. 27: ** *PLANNING DEPARTMENT CONDITIONS * ** 28: Prior to final sign off on this permit, a separate permit covering the wetland mitigation /buffer enhancement plan pepared by Sheldon & Associates along Lot 2 must be submitted and approved. The edges of the wetland buffer easements on lots 2, 3, 4, and 6 shall be delineated with a split rail fence and signage per TMC 18.45.060 6. Blackberry control must be timed to match the seasonal recommendations in the report. 29: The retaining wall along the western edge of lots 3 and 4 may need to be extended to the southern boundary of S. 139th Street in order to protect the proposed access road and fire turnaround. This should be field verified. 30: All retaining walls 4 feet or more in height require separate building permits submitted through the Permit Center. 31: The proposed fire hydrants must be relocated as shown on the diagrams attached to the Notice of Decision. The correction must be reflected on the Water District 125 permit and you proceed at your own risk. Since this was a preliminary approval conditon, we will not grant final approval and permission to build houses if the hydrants are installed incorrectly. 32: The grading plan does not show a flat area in the rear yards for Fire Department ground ladder placement. If unable to provide a suitable flat area adjacent to the houses, please contact the Tukwila Fire Marshal's office. Since this was a preliminary approval condition, we will not grant final approval and permission to build houses if it is not addressed. doc: Conditions * *continued on next page ** PW03 -106 Printed: 07 -26 -2007 I I hereby certify that I have read these conditions and will comply with them as outlined. All provisions of law and ordinances governing this work will be complied with, whether specified herein or not. The granting of this permit does not presume to give authority to violate or cancel the provision of any other work or local laws regulating construction or the performance of work. Signature: Date: Print Name: doc: Conditions PW03 -106 Printed: 07 -26 -2007 City of Tukw'' Department of Community Development 6300 Southcenter Boulevard, Tukwila, WA 98188 Telephone (206) 431 -3670 FAX (206) 4314665 E -mail: tukplanCa?tukwila.wa.us SHORT PLAT NUMBER 1.05-038. SENSITIVE AREA EASEMENT This SENSITIVE AREA EASEMENT is created April 6, 2007 by and between Rehabitat Northwest, Inc corporation address is 5639 16 Ave SW, Seattle, WA 98106 (Grantor) and then u hcenter BIvdDSuae Tukwila, WA 98 D 188 elopment, whose address is 6300 (Grantee); The grantor is the fee simple title holder of real property located in the Cit Tukwila, King County, and the State of Washington, legally described in I� The Department of Community Development (DCD) for the City of Tukwila is charged with administrating Tukwila Municipal Code (TMC) 18.45 "Environmentally Sensitive Areas ", as amended, and Permittee /Grantor has. applied for short plat approval (DCD File Number L05 -038) to develop the property described in exhibit A with four single family homes. A portion of the buffer for Wetland 17, as identified on the City's Sensitive Area Map and the applicant's Wetland Study, extends on to the property. Wetland 17 is a type two (2) wetland and requires a buffer of eighty feet. TMC 18.45.090 (B) permits the applicant to reduce the buffer area of a wetland by up to 50- percent, . provided the buffer area is not classified as steep slope and that the remaining buffer is enhanced. DCD determined that a buffer reduction for the project would be appropriate. Permittee /Grantor has provided enhancement of the remaining wetland buffer area. Permittee /Grantor has agreed to grant the City of Tukwila a Sensitive Area Easement that protects the wetland and wetland buffer area (hereafter "Easement Premises) on the property and la restricts Tukw shall Exhibit B. The City of record this Agreement with the King County Recorders Office. ACCORDINGLY, Grantor co,Iveys this Sensitive Area Easement to grantee pursuant to TMC 18.45.170 "Sensitive Area Tracts and Easements" on the terms and conditions stated below. 1. The purpose of this Easement is to protect the functions and values of the existing wetland, its associated buffer, and its natural resources on the Easement Premises consistent with the Permit and the protection of the benefits to the public derived from wetlands and integral habitat, by requiring Grantor to maintain the easement Premises in its natural and undeveloped conditions. 2. Grantor acknowledges that future activities within the wetland and wetland buffer are strictly limited under TMC 18.45 "Environmentally Sensitive Areas" as the chapter currently exists and as may be amended in the future. 3. This Easement shall be binding upon successors and assigns of the parties and shall run with the land in perpetuity unless modified or terminated by written agreement of the parties. 4. In order to ensure proper maintenance and care of the wetland buffer area, City of Tukwila employees shall have access to the wetland buffer area on lots four and five of the short plat. This access shall not be interpreted to allow members of the general public access to the wetland buffer area. 5. This easement may be modified only in writing through amendment of the Easement. Any modification 1n be amendedhe purpose and intent of the Easement an d TMC 18.45 as may _ Pa or I • • ki:•=30.50 SURVEYING $ MAPPING 15255 Sunwood Blvd. Tukwila, Wash. EMMETT C. DOBBS, P.L.S. CERT. NO. 17663 206 243 -0427 , ID LOT 1; SAID LOT 1 A iF BEGINNING; NEST UNE OF .ESS, TO THE TOWNSHIP 23 IASHINGTON, ID LOT 1; SAID LOT 1 A F BEGINNING; NEST LINE OF SS, TO THE COMMENCING AT THE SOUTHWEST CORNER OF SAID LOT 1; THENCE N 01'30'53" E ALONG THE WEST UNE OF SAID LOT 1 30.00 FEET; THENCE S 87'48'48" E ALONG A LINE PARALLEL AND 30 FEET NORTH OF THE SOUTH UNE OF SAID LOT 1 A DISTANCE OF 181.05 FEET TO THE TRUE POINT OF BEGINNING; THENCE CONTINUING S 87'48'48" E ALONG SAID PARALLEL LINE 136.63 FEET; THENCE N 59'49'07" E, 204.79 FEET; THENCE N 29'00'36" W, 168.40 FEET; THENCE N 8220'06" W, 244.54 FEET; THENCE N 3326'06" W, 141.82 FEET; THENCE S 54'20'54" W, 65.26 FEET; THENCE N 88'29'08" W, 30.00 FEET; THENCE S 01'30'53" W, 71.24 FEET; THENCE S 48'35'16" E, 86.51 FEET; THENCE S 65'29' " F EET; THENCE EAST, 7.37 FEET; THENCE S 56'37'39" E, 36.83 FEET; THENCE S 4818'19" E, 35.89 FEET; THENCE S 47'34'08" W, 11.36 FEET; THENCE S 76'48 W, 43.51 FEET; THENCE S 5324'06" W, 38.61 THENCE S 24'39'48" E, THENCE N 77'37'51" E, 27.48 THENCE S 12'53'18" E, 74.25 FEET, MORE OR LESS, TO THE POINT OF BEGINNING. (CONTAINS 93,145.7 S.F. OR 2.138 ACRES) WETLAND LIMIT LINE LINE BEARING DISTANCE WL •L1 N 1013'43" E 28.30' WL -L2 N 17'08'02" W 37.39' WL -L3 N 67'40'05" W 48.39' WL -L4 N 44'52'54" 'W 7.30' WL -L5 N 30'1215" W 16.14' WL -L6 N 1219'30" W 15.01' WL -L7 N 14'49'24" E 34.61' WL -L8 S 51'57'56" E 34.20' WL -L9 N 5417'32" E 39.49' WI.-L10 N 64'48'25" E 37.09' WL -L11 N 48 E 6.62' WETLAND BUFF UNE BEARING WB - L1 N 10'33'43" E WB -L2 N 17'08 W WB -L3 N 6740'05" W WB -L4 N 44'52'54" W WB -L5 N 3012'15" W WB -L6 N 1219'30" W WB •L7 N 14'49'24" E WB -L8 N 4817 E WB -L9 S 51 E WB -L10 N 5417'32" E WB -L11 N 64'48 E WB -L12 N 4826'31" E !WP. 23 N., . RGE. 4 E., W.M. 3TON tp S 65'29'36" E 35.76' N 90'00'00" E 27.37' S 5617'39" E 36.83' S 48'18'19" E 35.89' LOT 2 N 2419'48" W 31.80' �11i WL -L6 WL- L5 WL- L4 WB -L12 WL -L11 S 47'34'08" W 11.36' WL -L10 S 76'48'29" W 43.51' S 53'24'06" W 38. S 2419'48" E S 24'39'48" E 13.31' N 77'37'51" E 27.48' 244.5 TRACT A OPEN SPACE AND WETLANDS or is )-1 -20,67 VOLUME s MAINTENANCE GUARANTEE BOND {PRIVATE } KNOW ALL MEN BY THESE PRESENTS: BOND NO. 1021731 THAT we, Rehabitat Northwest, Inc, as Principal, and Lexon Insurance Company, a corporation organized and doing business under and by virtue of the laws of the State of Texas and duly licensed to conduct surety business in the State of Washington, as Surety, are held and firmly bound unto City of Tukwila, as Obligee, in the sum of Nine Thousand Two Hundred Dollars Zero Cents ($9200.00) Dollars, for which payment, well and truly to be made, we bind ourselves, our heirs, executors and successors, jointly and severally firmly by these presents. THE CONDITION OF THE OBLIGATION IS SUCH THAT: WHEREAS, the above named Principal entered into an agreement or agreements with said Obligee to: Cost to cover monitoring of enhancement area and ensure 90% of the plantings in the enhancement area are maintained at the end of a 3 -year period at Foster Ridge Subdivision WHEREAS, said agreement provided that Principal shall guarantee replacement and repair of improvements as described therein for a period of Three year(s) following final acceptance of said improvements; NOW, THEREFORE, if the above Principal shall indemnify the Obligee for all loss that Obligee may sustain by reason of any defective materials or workmanship, which become apparent during the period of Three year(s) from and after acceptance of the said improvements by Obligee, then this obligation shall be void, otherwise to remain in full force and effect. IN WITNESS WHEREOF, the seal and signature of said Principal is hereto affixed and the corporate seal and the name of the said Surety is hereto affixed and attested by its duly authorized Attorney -in -Fact. Signed this 13 day of June, 2007. REHABITAT NORTHWEST, INC. Lexon Insurance Company BY ItAile„,.10“ BY 4,44t Mark M Wilson, Attorney -in -Fact "OFFICIAL SEAL" MAUREEN K. AYE Notary Public, State of Illinois My Commission Expires 09/21/09 Signed and Sealed at Lombard, Illinois this 13 POWER OF ATTORNEY LX 28536 Lexon Insurance * Company KNOW ALL MEN BY THESE PRESENTS, that LEXON INSURANCE COMPANY, a Texas Corporation, with its principal office in Louisville, Kentucky, does hereby constitute and appoint: Mark M. Wilson, Terese M. Isaacson, Erin M. Wallace, Sean Fallows******************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** its true and lawful Attorneys) -In -Fact to make, execute, seal and deliver for, and on its behalf as surety, any and all bonds, undertakings or other writings obligatory in nature of a bond. This authority is made under and by the authority of a resolution which was passed by the Board of Directors of LEXON INSURANCE COMPANY on the 1st day of July, 2003 as follows: Resolved, that the President of the Company is hereby authorized to appoint and empower any representative of the Company or other person or persons as Attorney -In -Fact to execute on behalf of the Company any bonds, undertakings, policies, contracts of indemnity or other writings obligatory in nature of a bond not to exceed $2,500,000.00, Two - million five hundred thousand dollars, which the Company might execute through its duly elected officers, and affix the seal of the Company thereto. Any said execution of such documents by an Attorney -In -Fact shall be as binding upon the Company as if they had been duly executed and acknowledged by the regularly elected officers of the Company. Any Attorney -In -Fact, so appointed, may be removed for good cause and the authority so granted may be revoked as specified in the Power of Attorney. Resolved, that the signature of the President and the seal of the Company may be affixed by facsimile on any power of attorney granted, and the signature of the Vice President, and the seal of the Company may be affixed by facsimile to any certificate of any such power and any such power or certificate bearing such facsimile signature and seal shall be valid and binding on the Company. Any such power so executed and sealed and certificate so executed and sealed shall, with respect to any bond of undertaking to which it is attached, continue to be valid and binding on the Company. IN WITNESS THEREOF, LEXON INSURANCE COMPANY has caused this instrument to be signed by its President, and its Corporate Seal to be affixed this 2nd day of July, 2003. ACKNOWLEDGEMENT CERTIFICATE Day of JUNE , 20 07 LEXON INSURANCE COMPANY BY David E. Campbell President On this 2nd day of July, 2003, before me, personally came David E. Campbell to me known, who being duly sworn, did depose and say that he is the President of LEXON INSURANCE COMPANY, the corporation described in and which executed the above instrument; that he executed said instrument on behalf of the corporation by authority of his office under the By -laws of said corporation. 6tAjk Maureen K. Aye Notary Public I, the undersigned, Secretary of LEXON INSURANCE COMPANY, A Texas Insurance Company, DO HEREBY CERTIFY that the original Power of Attorney of which the foregoing is a true and correct copy, is in full force and effect and has not been revoked and the resolutions as set forth are now in force. 0,4 zad. Donald D. Buchanan Secretary KNOW ALL MEN BY THESE PRESENTS, that we, Rehabitat Northwest, lnc., as Principal, and Lexon Insurance Company, a corporation, duly authorized to do surety business in the State of Washington, as Surety, are jointly and severally held and bound unto City of Tukwila in the sum of Six Thousand One Hundred Eighty Seven Dollars Zero Cents ($6187.00) for the payment of which we jointly and severally bind ourselves, our heirs, executors, administrators, successors and assigns; firmly by these presents. THE CONDITION OF THIS BOND IS SUCH THAT, WHEREAS the above named Principal entered into an agreement or agreements with said Obligee to complete the improvements specified in said agreement dated 06/25/2007 for Cost for labor and materials to install plantings in wetland enhancement area per Wetland Buffer Enhancement Plan, dated 6/11/03, prepared by Sheldon & Associates, Inc. at Foster Ridge Subdivision. NOW THEREFORE, the condition of this obligation is such, that if the above Principal shall well and truly perform said agreement or agreements during the original term thereof or of any extension of said term that may be granted by the Obligee with or without notice to the Surety, this obligation shall be void, otherwise it shall remain in full force and effect. IN WITNESS WHEREOF, the signature of the said Principal and the corporate seal and the name of the Surety is hereto affixed this 13th day of June, 2007. PRINCIPAL: REHABITAT NORTHWEST, INC. SURETY: Lexon Insurance Company BY � i ` A IMPROVEMENT BOND Bond Number : 1021732 BYhl ark Wilson, Attorney -in -Fact POWER OF ATTORNEY Lexon Insurance Company LX 8 5 3 7 KNOW ALL MEN BY THESE PRESENTS, that LEXON INSURANCE COMPANY, a Texas Corporation, with its principal office in Louisville, Kentucky, does hereby constitute and appoint: Mark M. Wilson, Terese M. Isaacson, Erin M. Wallace, Sean Fallows******************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** its true and lawful Attorney(s) -In -Fact to make, execute, seal and deliver for, and on its behalf as surety, any and all bonds, undertakings or other writings obligatory in nature of a bond. This authority is made under and by the authority of a resolution which was passed by the Board of Directors of LEXON INSURANCE COMPANY on the 1st day of July, 2003 as follows: Resolved, that the President of the Company is hereby authorized to appoint and empower any representative of the Company or other person or persons as Attorney -In -Fact to execute on behalf of the Company any bonds, undertakings, policies, contracts of indemnity or other writings obligatory in nature of a bond not to exceed $2,500,000.00, Two - million five hundred thousand dollars, which the Company might execute through its duly elected officers, and affix the seal of the Company thereto. Any said execution of such documents by an Attorney -In -Fact shall be as binding upon the Company as if they had been duly executed and acknowledged by the regularly elected officers of the Company. Any Attorney -In -Fact, so appointed, may be removed for good cause and the authority so granted may be revoked as specified in the Power of Attorney. Resolved, that the signature of the President and the seal of the Company may be affixed by facsimile on any power of attorney granted, and the signature of the Vice President, and the seal of the Company may be affixed by facsimile to any certificate of any such power and any such power or certificate bearing such facsimile signature and seal shall be valid and binding on the Company. Any such power so executed and sealed and certificate so executed and sealed shall, with respect to any bond of undertaking to which it is attached, continue to be valid and binding on the Company. IN WITNESS THEREOF, LEXON INSURANCE COMPANY has caused this instrument to be signed by its President, and its Corporate Seal to be affixed this 2nd day of July, 2003. On this 2nd day of July, 2003, before me, personally came David E. Campbell to me known, who being duly sworn, did depose and say that he is the President of LEXON INSURANCE COMPANY, the corporation described in and which executed the above instrument; that he executed said instrument on behalf of the corporation by authority of his office under the By -laws of said corporation. "OFFICIAL SEAL" MAUREEN K. AYE Notary Public, State of Illinois My Commission Expires 09/21/09 Signed and Seated at Lombard, Illinois this 13 ACKNOWLEDGEMENT CERTIFICATE Day of JUNE , 20 07 LEXON INSURANCE COMPANY David E. Campbell President Clie Maureen K. Aye Notary Public I, the undersigned, Secretary of LEXON INSURANCE COMPANY, A Texas Insurance Company, DO HEREBY CERTIFY that the original Power of Attorney of which the foregoing is a true and correct copy, is in full force and effect and has not been revoked and the resolutions as set forth are now in force. Donald D. Buchanan Secretary March 16, 2008' Dick & Donna Pedersen P.O. Box 1518 Marysville, WA 98270 Dear Mr. and Mrs. Pedersen: NG Q:\POST RDGVSPExpiration.doc Steven M. Mullet, Mayor Department of Community Development Steve Lancaster, Director RE: Foster Ridge Development L04 -085 Short Plat This letter is to follow up on our discussion about the steps needed to achieve fmal short plat approval on your property. As we discussed the expiration date on your short plat is May 6, 2007 and no further extensions are possible. If the short plat is not recorded with King County prior to that date it will expire and you will need to reapply under current regulations, including stormwater, sensitive area and traffic regulations. This would likely mean that you would be eligible for fewer lots, your infrastructure may need to be redesigned and traffic impact fees would be higher among other changes. Following are the outstanding items from the short plat preliminary approval letter: 1. Complete the scope of work for the infrastructure permit PW03 -106. a Select a new contractor and set up a pre - construction conference with Greg Villanueva. b. Have your geotechnical engineer make recommendations for erosion control, site stability and corrective action for the slump at the end of the access road. Provide this proposal to the City for review. c. Correct the catch basin in S. 139 Street that is too low. d. Tightline the drainage pipe from residence at 4525 S. 139 into the storm drainage system. e. Provide as-built drawings to the Public Works Department. f. Once all work has been completed have your geotechnical engineer provide a fmal report to PW that states that all work was carried out in accordance with the recommendations from Associated Earth Sciences in their July 11, 2002 report. 2. Provide separate easement documents and maintenance agreements for the common private infrastructure (utility lines, access roads, storm drainage) to be reviewed and approved prior to final of the PW permit. 3. Apply for a new permit for the stormwater vault and complete the scope of work under expired permit D06 -099. a. Complete the connection between the stormwater vault and the drainage pipe. Page 1 of 2 03/142007 5:22:00 PM 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 b. Fix the water leaking from the vault on the downhill side. 4. Remove the invasive plants and install the native plants in the wetland buffer reduction area adjacent to Lot 2 as specified in the buffer enhancement plan prepared by Sheldon & Associates (I provided you a copy at our meeting). There is a monitoring requirement for the survival of these plantings that will need to be assumed by the new buyer. 5. Install the replacement trees and shrubs to meet the Tree Ordinance requirements, see sheets Ll and L2 of the civil plans. 6. Install the split rail fence along the edge of the wetland buffer easements. Signs must be provided as follows: 18.45.060 6. On-site Identification wording shall be as follows: "Protection of this natural area is in your care. Alteration or disturbance is prohibited pursuant to TMC Chapter 18.45. Please call the City of Tukwila for more information." 7. Submit a set of recording documents in record of survey format that contain: a. A survey map as described in the application checklist that is consistent with all of the conditions of approval. The surveyor's original signature must be on the face of the plat. b. Existing and proposed legal descriptions for all lots. c. Legal description of the access /utility easements. d. Joint Maintenance Agreements for the easements, drainage system and open space tract. e. Legal description of the wetland buffer easement across lots 3, 4 and 6. Revisions must be submitted, approved and recorded prior to the expiration date of May 6, 2007. If this application expires due to your non - submittal of requested documents you will be required to submit a new short plat. Sincerely, Nora Gierloff Planning Supervisor Cc: Greg Villanueva, PW Joanna Spencer, PW Jim Morrow, PW Jack Pace, DCD NG Page 2 of 2 03/142007 522:00 PM Q:\FOST RDG\SPExpiration.doc May 5, 2006 John B. Friel P.O. Box 27 Everett, WA 98206 RE: Foster Ridge Short Plat Request for Extension Permit L04 -085 Dear Mr. Friel: I received your request for an extension of the expiration date on the Foster Ridge project. The Notice of Decision on the short plat was issued May 6, 2005 and so the approval is due to expire on May 6th of this year. The Short Subdivision Committee is authorized to grant a single extension of up to one year, TMC 17.12.040. Your request for an extension is approved and the short plat will expire on May 6, 2007 unless all of the conditions of approval have been met and the final documents have been recorded with King County. No further extensions are possible. Sincerel ora Gierloff city of Tukwila Department of Community Development Steve Lancaster, Director cc: Jim Morrow, Public Works Director Richard Pedersen Steven M. Mullet, Mayor 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 DATE: September 28, 2005 PROJECT NAME: Foster Ridge BLA PLAN CHECK NO.: PW03 -106 Q:\FOST RDG\PW03- 106Conditions.DOC PLANNING DIVISION COMMENTS Plan Reviewer: Contact Nora Gierloff at (206) 431 -3670 if you have any questions regarding the following comments. The permit is approved with the following conditions: 1. Prior to final sign off on this permit a separate permit covering the wetland mitigation/buffer enhancement plan prepared by Sheldon & Associates along Lot 2 must be submitted and approved. The edges of the wetland buffer easements on lots 2, 3, 4 and 6 shall be delineated with a split rail fence and signage per TMC 18.45.060 6. Blackberry control must be timed to match the seasonal recommendations in the report. 2. The retaining wall along the western edge of lots 3 and 4 may need to be extended to the southern boundary of S. 139 Street in order to protect the proposed access road and fire turnaround. This should be field verified. 3. All retaining walls 4 feet or more in height require separate building permits submitted through the Permit Center. 4. The proposed fire hydrants must be relocated as shown on the diagrams attached to the Notice of Decision. The correction must be reflected on the Water District 125 permit and you proceed at your own risk. Since this was a preliminary approval condition we will not grant final approval and permission to build houses if the hydrants are installed incorrectly. 5. The grading plan does not show a flat area in the rear yards for Fire Department ground ladder placement. If unable to provide a suitable flat area adjacent to the houses please contact the Tukwila Fire Marshal's office. Since this was a preliminary approval condition we will not grant final approval and permission to build houses if it is not addressed. DATE: July 22, 2005 PROJECT NAME: Foster Ridge BLA PLAN CHECK NO.: PW03 -106 PLANNING DIVISION COMMENTS Plan Reviewer: Contact Nora Gierloff at (206) 431 -3670 if you have any questions regarding the following comments. These comments are based on the December 2004 set of drawings prepared by Pace Engineers, your last submittal. Evaluation of my September 20, 2004 comments: 1. The property owners will need to sign, notarize and record the revised geotechnical covenant as a condition of the PW Type C infrastructure construction permit. The permit will not be issued until the covenant has been recorded. I have not received this. If that has been recorded please provide a copy. 2. Add a note to the drawings that there must be an on -site inspector representing the geotechnical engineers during the construction of foundations, retaining walls, water, sewer, and surface water utilities, and driveways. The on -site inspector shall verify in writing, on a daily basis, with the reports sent to the City's Department of Public Works, that all construction work has been performed in accordance with approved plans and specifications, permit requirements, and that the construction work complies with all of the geotechnical's recommendations. Addressed. 3. The wetland mitigation/buffer enhancement plan prepared by Sheldon & Associates along Lot 2 must be included in the PW permit submittal and installed prior to final approval. The scope of the PW permit has not been modified to include this work. Blackberry control should be timed to match the seasonal recommendations in the report. 4. The type, quantity and size of plantings along the north side of the detention vault must be shown on the land altering permit and installed prior to fmal approval. Addressed. 5. Submit a tree permit showing all regulated trees to be removed by species and diameter and the location and species of replacement trees per the table in the Tree Ordinance. The PW permit must identify all trees to be retained within the clearing limits and they must be flagged and have tree protection measures in place prior to the start of work. Addressed. Q:\FOST_RDQ7-22_PW03-106.DOC Planning Division Foster Ridge Response to Correction #2 7/22/05 Page 2 6. The edges of the wetland buffer easements on lots 2, 3, 4 and 6 shall be delineated with a split rail fence and signage per TMC 18.45.060 6. I don't see this on the drawings. Additional comments based on May 6, 2005 Notice of Decision for L04 -085: 1. Drainage design for the site shall be reviewed as part of the PW infrastructure permit and shall meet City of Tukwila Surface Water Ordinance Requirements. However the detention vault will require a separate building permit and structural review, which you have not yet applied for. If the water line to the Goss residence at 4525 S. 139 Street is not rerouted as proposed there may be a conflict with the curtain drain proposed for the west side of the driveway to lot 5. Please address. 2. The proposed rerouting of the water service to the Goss residence will have significant impacts for the property owners and should be reviewed with them prior to resubmittal. 3. The retaining wall along the western edge of lots 3 and 4 may need to be extended to the southern boundary of S. 139 Street in order to protect the proposed access road and fire turnaround. This should be field verified prior to resubmittal. 4. The proposed fire hydrants must be relocated as shown on the diagrams attached to the Notice of Decision. 5. The grading plan does not show a flat area in the rear yards for Fire Department ground ladder placement. If unable to provide a suitable flat area adjacent to the houses please contact the Tukwila Fire Marshal's office prior to resubmittal. Q:\FOST_RDG\7-22_PW03-106.DOC March 31, 2005 Marilyn Mettlin 4514 S. 139 Street Tukwila, WA 98168 City of Tukwila Steven M. Mullet, Mayor Department of Community Development Steve Lancaster, Director RE: Foster Ridge Short Plat Comment Letter Dear Ms. Mettlin, Thank you for submitting comments on the Foster Ridge project. You own four lots north of the project site on the west side of the unopened portion of 46 Avenue South. That length of 46 has remained unopened due to slopes that range from 10 to 45 %. I have provided you with a contour map of the area. The average slope for the 260 feet between S. 139 Street and the mid -point of your southernmost lot is 18%. Tukwila standards for public streets are as follows: 17.20.030 General Standards 6. PUBLIC ROADS: b. Design: The design and alignment of all public streets shall conform to the following standards unless otherwise approved by the Department of Public Works: (2) Street Grades: Street grades shall not exceed 15 %. However, provided there are no vehicular access points, grades may be allowed up to 18 %, for not more than 200 feet when: (a) Exceeding the grades would facilitate a through street and connection with the larger neighborhood; (b) The greater grade would minimize disturbance of sensitive slopes; (c) The Fire Marshal grants approval of the grade transition; and (d) Tangents, horizontal curves, vertical curves, and right - of - way improvements conform to Department of Public Works standards. If you did propose to open 46 Avenue in order to provide access to your lots you would need to engineer a solution and most likely request an exception to our road standards. Whether this request would be granted would depend on the details of the design. The Public Works Department thinks that it is possible to design a solution that integrates with the improvements that Foster Ridge will build to open the roadway for its purposes. North of 139 Street they are filling and constructing a retaining wall to bring the grade Q:\FOST_RDOMettlinComment.DOC 6300 Sou— nter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 L04 -085 Page 2 up to 15 %, as you would have to do if their project was not constructed. Therefore their improvements do not create a barrier to your access, but would form the first portion of your road. A more cost effective solution might be to seek an easement from one of the properties between the western edge of your lot and 45 Avenue South. We have researched the vacation of the eastern half of 46 Avenue and have determined that it happened prior to annexation of the area to Tukwila. For additional information about the vacation process please contact Nicole Keller, King County Vacation and Boundary Engineer at 206 - 296 -3731 or fax 206 - 296 -0567. If you have any additional questions or comments, please call me at (206) 431 -3670. Sincere /` / tip. 14.-V Nora Gierloff Planning Supervisor CC: Joanna Spencer, Public Works John Friel, Foster Ridge Contact Development File PW03 -106 March 24, 2005 Nora, thank you for meeting with me earlier this week to review the planned Pederson Foster Ridge residential development. As mentioned our residence is adjacent to the proposed projects Western boundary at the end of 139th street. Specifically our address is 4525 So. 139th Street, Tukwila. Comments: After reviewing the proposed plans for the development. Specifically the western boundary area of proposed lots numbers three and four, we wish to make comment. a) A 47 lineal foot Modular Block wall (as designed by Geotechnical Engineer at the time of construction) is proposed adjacent to a 12 foot access road shown on lot #3 & #4, adjacent to 4525 So. 139th street (Please see Sheet C5 of the Pedersen Foster Ridge proposed plans).Our concern is in regards to the incomplete erosion protection that the Modular block wall will provide. Shoring of the elevated bank property boundary by the wall stops well short of the intersection of the property boundary to South 139th street. As proposed on Drawing C5, the walls elevation continues to Increase as it travels its proposed path to the North. However it stops well short of the North East corner boundary of the residential property and Southern side of south 139th Street. This is the highest elevation point encountered on the property boundary (Approximately 8 feet 3 inches). We feel that the proposed wall falls short of its intended purpose of protecting the access road where its needed most, from the mid and to the highest elevation change. b) We feel there may be a discrepancy regarding the location of the Domestic water supply feed to our residence. A proposed 12 foot access is shown entering lot five from South 140th street which would cover our existing water line ( see sheet C4 ). We are concerned that the proposed construction of the Curtain drain (Sheet C5) and Water line for the proposed lots may affect our water supply. We are unsure of the exact location and type of pipe that provide our water service. It may be non- metallic with out a trace wire installed. This line was routed prior to our property purchase many years ago. c) Sheet C1 indicates that our domestic water supply meter location will be relocated from South 140th street to south 139th street. As proposed the water line from the proposed location will enter the Northwest corner of our property. Proposed location does not Indicate the path of the water supply from the output of the meter to our residence. Currently the existing water line Is located near the middle of the back (southern exposure) of our residence; we have concerns regarding the impact of the proposed relocation and connection of the domestic water supply to the house. Negotiating through the landscaped yard and elevation changes could prove difficult and expensive we feel that further consideration needs to be made regarding the impact of this proposed relocation. Also any costs associated with said relocation should be passed onto the developer. We request to be consulted and reach agreement, prior to any further efforts being set in motion to relocate our domestic water service. Thank you Joe & Gerri Goss 4525 so. 139th st. Tukwila, Wa. 98168 RECEIVED !.,‘-> 2 5 2005 DEVELOPMENT To Whom It May Concern: MAR 2 5 ?flfl5 DEVELOPMENT March 23, 2005 I received a notice of application in the mail from the city of Tukwila referencing Richard Pedersen's application for development — please see attached. In this notice I was requested to submit my written comments. I am concerned about the removal of trees in and around my home. I returned home one day to find a tree from the front of my property had been removed without my permission. Granted, this tree's limbs were growing up into the power lines but I believe I should have at least been allowed the option to prune it, or at least asked prior to this occurring. Given that my home's location is so near to major noise pollutants, i.e. the airport and major freeways — I believe that we need all the trees that we can get to muffle the noise, clean the air and help preserve our peace. I therefore appose tree permit requested in this application. I am more than happy to speak about the importance of this issue if that should be needed. I can be reached by mail at: PO Box 733, Kent, WA 98035 or by phone at: (253) 332 -2645. Thank you for your time and attention to these concerns. Sincerely, e C Devon C. Klein, LMHC J . - . 1 z Gei2 -a) 0'71 a- iaJzZz.;7C 4/ 4 - tt ,,g � 15 /L fie? f 2zd -- .4.7c) __ce_e_g_u „ se ,4t) e-ezEJ-2et Sow { f 1 euz -C'a( /2 2005 ,._l_e_Lii_eAe.g4) OA W20 8 .(�..N. � Gin'✓1 Q' � � map y�2/ 7Lwµ2 GY- C.�.ea.0� 07 CITY OF TUKWILA NOTICE OF APPLICATION PROJECT INFORMATION Richard Pedersen has filed applications for development of a 6 lot planned residential development and short plat to be located at the northeast corner of South 140th Street and 46th Avenue South. Permits applied for include: L04 -033 Boundary Line Adjustment/Lot Consolidation L04 -032 Administrative Planned Residential Development L04 -085 Short Plat Other known required permits include: Tree Permit Studies required with the applications include: Geotechnical Report Wetland Delineation A SEPA MDNS was issued 3/5/1999 and an addendum was issued 6/18/2004. FILES AVAILABLE FOR PUBLIC REVIEW The project files are available at the City of Tukwila. To view the files, you may request them at the counter at the Department of Community Development (DCD), located at 6300 Southcenter Boulevard #100. Project Files include: Application Filed: December 21, 2004 Notice of Completeness Issued: January 14, 2005 Notice of Application Issued: March 11, 2005 L04 -033 Boundary Line Adjustment/Lot Consolidation L04 -032 Administrative Planned Residential Development L04 -085 Short Plat E97 -0013 Environmental Review OPPORTUNITY FOR PUBLIC COMMENT Your written comments on the project are requested. They must be delivered to DCD at the address above or postmarked no later than 5:00 P.M., March 25, 2005. You may request a copy of any decision and your appeal rights by calling DCD at (206) 431 -3670. The boundary line adjustment, short plat and SEPA threshold determination are appealable to the Hearing Examiner. For further information on this proposal, contact Nora Gierloff at (206) 431 -3670 or visit our offices at 6300 Southcenter Blvd., Suite #100, Monday - Friday, 8:30 a.m. to 5:00 p.m. AL EDGE`OF V r' 2 ....oval, 30' Ve]('> 4T l<ROM LT-WH 1*fl G BW SEE-DETAIL • 1'bP, VAULT iNgIN - (TYP.), TW 1C20t ilW 187.0* N PROVIDE MIN. e' FOR GRASS LAN -- 1 10p(►L( ! 1 �C trTt��EJO 'ENGINEER 1 . ODN STRUChON \ Rb - -- .S8 "48' 48 ' — 'kt�NaM anxe. i>18t tieel.aam SEE DETAIL 1 , 6,18 . 4 - S f WM CRT 85,7 9C.C USA FOSS 9749 C.'R 82141 *KM tom; . T C)l ` DESIGNED IfP DRAIN IPP CHECKED POC 13 LF I2' WIDE AND 2' HIGH HAMMERHEAD SECTION SEE DETAIL MATCH _ -- -- i1C -TD+ EXISTING ( PAVE)) . SAWCUf ALT I � 4'y I r. �F:IV 47 LF MODULAR BLOC( WALL AS DESIGNED RY CEOTECHMCAL ENGINEER AT THE TIME OF CONSTRUCTION 4524 37 LF MODULAR BL WALL AS DESIGNED BY GEOIE H ICAL ENGINEER AT TIME Of CONS RUC110N 4525 Pr 17 C 12-FT ACCESS ROAD SECTION SEE DETAIL I EP MATCH EX. ASPHALT (VP.) latta � ADJUST SS RIM TO / MATCH' NEW )--APP!. iOCA rol - - -- CRILDE_SEE EX'DP,VEWPY SANITARY SEWER - - - -- ' C' 750 Soh Strad South Kirkland. MA 98033 PH: (425) 827 -2014 1- 800 - 945 - 8408 Kirkland • Seattle . Fadaral War • Par#and Engineering Planning Surveying Penhallegon Associates Consulting Engineers, inc. ` peceengrs.com FAA. (425) 827 -5043 AN RIM ELEVATION e- \C/E° == Y / TS_OF CLEARING -R[. d(ADOC - (TYP ), .FLOOR K ca j, j - r • 1_ C , i Q `7O 2 NO1ES ADDED PER PLANNING DIY. CONDOS RENSED PER CRY COMMENTS RENSED PER GONER RENEW COMMENTS 7/03 12/20 /O4HPP )4/13/•rPP FPH PDC POC P.O. Dept. Of Community Development City of Tukwila AFFIDAVIT OF DISTRIBUTION I. HEREBY DECLARE THAT: Notice of Public Hearing Determination of Non - Significance Notice of Public Meeting Mitigated Determination of Non- Significance Board of Adjustment Agenda Pkt Determination of Significance & Scoping Notice Board of Appeals Agenda Pkt Notice of Action Planning Commission Agenda Pkt Official Notice Short Subdivision Agenda Notice of Application Shoreline Mgmt Permit Notice of Application for Shoreline Mgmt Permit __ __ FAX To Seattle Times Classifieds Mail: Gail Muller Classifieds PO Box 70 - Seattle WA 98111 Other P:GINAWYNETTA/FORMS /AFFIDAVIT -MAIL 08/29/003:31 PM Was mailed to each of the addresses listed on this i1 day of Y the year 20p5 Project Name: S---.1/4* (-i'o Project Number: Z QC/ b33 1 0 /O3 LO `— / s Mailer's Signature: I,7, ' Nina e,t1470 eJ AJ45 Person requesting mailing: Impression antibourrage et 6 s&chage rapide www.avery.com Utilisez le gabarit 5960"" 1- 800 -GO- AVERY Orelio Ray & Patricia Vomenici 4822 S 138th St Tukwila, WA 98168 Greg Deano 4628 S 138th St Seattle, WA 98168 Hiep Trinh 14011 Macadam Rd S Tukwila, WA 98168 Joan Custodian & Sarah Meryhew 4431 S 148th St Tukwila, WA 98168 Eleanor Rupp 4611 S 140th St Seattle, WA 98168 Corp Catholic Archbishop 910 Marion St Seattle, WA 98104 Joan Slei 4510 84th St ttle, WA 98188 A R Quraishi 8529 20th Street Ct W Tacoma, WA 98466 Rhonda Clenna 13765 Macadam Rd S Seattle, WA 98168 wi096S ®AU 9AV D Harchand Singh & Ram Pal 19225 102nd Ave SE Renton, WA 98055 Joan Sleight 4510 S 184th St Seattle, WA 98188 Timothy & Alice Forhan 14003 Macadam Rd S Seattle, WA 98168 John Nalewajek 104 E Race St Yakima, WA 98901 Corp Catholic Archbishop 4415 S 140th St Seattle, WA 98168 Jeffrey Bauman 18014 NE 125th St Redmond, WA 98052 Floyd & Doreen Hunt 18122 40th Ave S Seattle, WA 98188 Steven Miller 13811 Macadam Rd S Tukwila, WA 98168 Paul Szewczyk 13749 Macadam Rd S Tukwila, WA 98168 © AVERY® 5960"" Doug & Cindy Lorkin 14435 S 259th St Des Moines, WA 98198 Anne Patricia Griffith 4529 S 140th St Seattle, WA 98168 Jerald & Santora Leishman 18019 NE 109th Ct Redmond, WA 98052 Alvin Tolonen 14075 35th Ave S Seattle, WA 98168 Evelyn & Udt Santora 4617 S 140th St Seattle, WA 98168 Jerald & Santora Leishman Sajjad Khan Hilltop Tukwila School District 24719 43rd Ave S 18019 NE 109th Ct 4640 S 144th St Kent, WA 98032 Redmond, WA 98052 Tukwila, WA 98168 Thelma Davis PO Box 69043 Seattle, WA 98168 Sukhchain Sandhu 12813 53rd Dr SE Everett, WA 98208 Jon Beahm 9813 23rd Ave NW Seattle, WA 98117 Craig Hittle 13757 Macadam Rd S Tukwila, WA 98168 A2l3Ad-09 ____ uu096S 3.LV1dW31 e LleAV esn woYAane MMM MEM 6uquud eai j e6pnws pue wet' Impression antibourrage et 6 s6chage rapide maimi www.avery.com Utilisez le gabarit 5960"c 1- 800 -GO -AVERY Cyril Mork 3594 Marquette St Santa Clara, CA 95051 Thomas & Ellen Gengler 13727 Macadam Rd S Tukwila, WA 98168 Roger Bauer 13711 45th Ave S Seattle, WA 98168 David Bailey 4430 S 139th St Seattle, WA 98168 Devon Klein PO Box 733 Kent, WA 98035 Erik Fletcher 13738 45th Ave S Tukwila, WA 98168 Jerry Mettlin 4514 S 139th St Seattle, WA 98168 Jerry Mettlin 4514 S 13 t Sea A 98168 Paul Vaughn 4531 S 137th St Tukwila, WA 98168 Rufma Quitco 4430 S 140th St Tukwila, WA 98168 ru.096S ®AU ]Ad Matthew Wilkins & Elize Fox 13735 Macadam Rd S Tukwila, WA 98168 Chris & Merry Westwood 13729 45th Ave S Tukwila, WA 98168 Juan Rojas 13703 45th Ave S Seattle, WA 98168 Thomas Brummel 4517 S 137th St Seattle, WA 98168 Heather Parshall 13722 45th Ave S Seattle, WA 98168 Keith Parks 13748 45th Ave S Tukwila, WA 98168 Jerry Mettlin 4514 S 139th St Seattle, WA 98168 Benito Cervantes Jr. 13723 Macadam Rd S Tukwila, WA 98168 John Mcdonough 4521 S 137th St Seattle, WA 98168 Donald Patterson 13908 1/2 45th Ave S Tukwila, WA 98168 AtI3AV-O9 woY MaA MMnn MEM AVERY® 5960'"c John Herzog 1200 Westlake Ave N #401 Seattle, WA 98109 Patricia Bauer 13715 45th Ave S Seattle, WA 98168 Robert Taylor 4420 S 139th St Seattle, WA 98168 Lies! Bohn 13710 45th Ave S Tukwila, WA 98168 Richard & Kay Larson PO Box 68267 Seattle, WA 98168 William Looney PO Box 1435 Tacoma, WA 98401 Jerry Mettlin 4514 S 13 Se WA 98168 Douglas Barlow & Karen Jackstadt 13715 Macadam Rd S Seattle, WA 98168 W C Taylor 4418 S 140th St Seattle, WA 98168 Ronald & Deborah Isaacson 4506 S 140th St Seattle, WA 98168 w.096S 31V7dIN310AisAV esn 6ugupd aai i e6pnws pue wer Impression antibourrage et a s6chage rapide Utilisez le gabarit 5960" Melynda & V Adele Wisdom Stephan Loubser 13510 Prosperity Dr #25C Silver Spring, MD 20904 Gerrilynn Goss 4525 S 139th St Tukwila, WA 98168 wi096S ®AU13AV 1:3 IMININEIMM Adrian Castro Maldonado Maria Del Romero 4514 S 140th St Tukwila, WA 98168 AtI3AV-O9-008-l. woa 4tiane llMnM www.avery.com 1-800-GO-AVERY Jakub Huremovic & Suada Huremovi 4526 S 140th St Tukwila, WA 98168 'V AVERY® 5960"c Brian & Imogene Martz 4526 S 140th St Seatac, WA 98168 wi0965 31V1dIN316AlaAv as f 6upultd eau ebpnws pue wer City of Tukwila Department of Community Development 6300 Southcenter Boulevard • Suite 100 Tukwila, WA 98188 -8548 John Friel PO Box 27 Everett, WA 98206 ora Gierloff Foster Ridge Timeline From: Nora Gierloff To: Jbmf @archerserve.com Date: 2/25/05 1:31 PM Subject: Foster Ridge Timeline Nora Gierloff Planning Supervisor City of Tukwila DCD (206) 433 -7141 Hi John, ► I received your fax today about the timeline for the Foster Ridge project. Here is an outline of the steps: • Provide the mailing labels for property owners (and tenants if there are any apartments) within 500 feet of the site to me. I will post the notice board and mail the notice of application within a week of receiving the labels. This will start the 14 day comment period. I expect to be able to issue you a revised notice of decision for the short plat as soon as the comment period expires, assuming that there are no new issues that arise. The approval will contain a condition that you must submit a revision to the existing BLA/LC file L04 -033 to modify it from resulting in six lots to resulting in one lot. This one lot will provide the starting point for the short plat, L04 -085. This BLA/LC must be recorded prior to final approval of the short plat and you are welcome to submit the revision any time, I expected it with your short plat application in December. You will have one year from the date of the notice of decision to respond to the November '04 correction letter on the utility and development permit PW03 -106, construct all common improvements, install required landscaping, record all necessary easements and maintenance agreements and submit final recording documents for the short plat. As you can see the timing of the project is largely dependent on you. I have been ready to issue the notice of application since I declared the short plat complete on January 14th, six weeks ago. ape FROM : February 24, 2005 MEMO TO: FROM: REF: Nora Gierloff Planning Supervisor City of Tukwila FAX 206 -431 -3665 John B. Friel, PE PLS FAX 425 -673 -7674 Foster Ridge Short Plat This memo is to give you a status of the list of property owners and addresses within 500 feet of the subject short plat and the mailing labels. That information was earlier requested from the title company. I contacted them today and they informed me that it would be sent out to us later today. We will be then forwarding to you. Could you inform me on what the time schedule will now be for any time limit on our project considering that we arc now also doing a short plat in conjunction with the lot consolidation and boundary line adjustment. Can we assume that we will be doing the applications in a sequence that will allow us to do the lot consolidation/BLA immediately and not be faced with a time expiration_ We have now secured the storm drainage easement from Craig Hittle and it has been recorded at King County. We now should be able to get the PACE drawings approved by Public Works and get a permit for construction soon. What effect will the processing of the short plat have on our plans to do the site development construction this spring and summer since it is critical that we do that during the good weather months? ohn B. Friel, PE PLS For Richard S. Pederson Foster Ridge FAX NO. - sb. 25 2005 01:24PM P1 Nora Gierloff Foster Ridge Public Notir From: Nora Gierloff To: Jbmf @archerserve.com Date: 2/7/05 11:45AM Subject: Foster Ridge Public Notice Hi John, Signs Now called me today to say that the notice board was up. In order to start the notice period I will also need mailing labels for property owners and tenants within 500 feet of the property (triggered by the short plat of 5 -9 lots). This was listed in the application checklist, but I allowed you to defer submittal until after the determination of completeness was made. Please let me know if you have any questions. Nora Gierloff Planning Supervisor City of Tukwila DCD (206) 433 -7141 Page 1 January 14, 2005 John B. Friel P.O. Box 27 Everett, WA 98206 Dear Mr. Friel: Nora Gierloff Planning Supervisor v City of Tukwila Steven M. Mullet, Mayor Department of Community Development Steve Lancaster, Director RE: L04 -085 Short Plat L04 -033 Boundary Line Adjustment/Lot Consolidation L04 -032 Administrative Planned Residential Development E97 -0013 Environmental Review Your application for a short plat located at South 139th Street and 46th Avenue South has been found to be complete on January 14, 2005 for the purposes of meeting state mandated time requirements and vesting under Tukwila's previous Sensitive Areas Ordinance. You must still submit a revision to your existing boundary line adjustment permit to change it from a consolidation of 18 lots to 1, rather than the 6 you had previously proposed. Your SEPA and planned residential development permits will transfer and apply to the new short plat application. The next step is for you to install the notice board on the site within 14 days of the date of this letter. You received information on how to install the sign with your application packet. If you need another set of those instructions, please call me. Once you have notified me that the notice board has been installed I will post it with a laminated copy of the Notice of Application and the comment period will start. This notice of complete application applies only to the permits identified above. It is your responsibility to apply for and obtain all necessary permits issued by other agencies. This determination of complete application does not preclude the ability of the City to require that you submit additional plans or information, if in our estimation such information is necessary to ensure the project meets the substantive requirements of the City or to complete the review process. NOTICE OF COMPLETE APPLICATION 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 DATE: September 20, 2004 PROJECT NAME: Foster Ridge BLA PLAN CHECK NO.: PW03 -106 2 Q:\FOST RDG\PW03- 106.DOC PLANNING DIVISION COMMENTS Plan Reviewer: Contact Nora Gierloff at (206) 431 -3670 if you have any questions regarding the following comments. Please revise your drawings to address the conditions in the Notice of Decision preliminary approval letter. Specifically: 1. The property owners will need to sign, notarize and record the revised geotechnical covenant as a condition of the PW Type C infrastructure construction permit. The permit will not be fmaled until the covenant has been recorded. Add a note to the drawings that there must be an on -site inspector representing the geotechnical engineers during the construction of foundations, retaining walls, water, sewer, and surface water utilities, and driveways. The on -site inspector shall verify in writing, on a daily basis, with the reports sent to the City's Department of Public Works, that all construction work has been performed in accordance with approved plans and specifications, permit requirements, and that the construction work complies with all of the geotechnical's recommendations. 3. The wetland mitigation/buffer enhancement plan prepared by Sheldon & Associates along Lot 2 must be included in the PW permit submittal and installed prior to final approval. 4. The type, quantity and size of plantings along the north side of the detention vault must be shown on the land altering permit and installed prior to final approval. 5. Submit a tree permit showing all regulated trees to be removed by species and diameter and the location and species of replacement trees per the table in the Tree Ordinance. The PW permit must identify all trees to be retained within the clearing limits and they must be flagged and have tree protection measures in place prior to the start of work. 6. The edges of the wetland buffer easements on lots 2, 3, 4 and 6 shall be delineated with a split rail fence and signage per TMC 18.45.060 6. FOR STAFF USE ONLY Sierra Type: F-SS Planer: File Number: L(..74 - 0f 5 Application Complete (Date: ) Project File Number: Application Incomplete (Date: ) Other File Numbers: CITY OF TUKWILA Department of Community Development 6300 Southcenter Boulevard, Tukwila. WA 98188 Telephone: (206) 431 -3670 FAX (206) 431 -3665 E- mail: n.o ci.tntwi]n.wLi NAME OF PROJECT/DEVELOPMENT: LOCATION OF PROJECT/DEVELOPMENT: (Give street address or, if vacant, indicate lot(s), block and subdivision, access street, and nearest intersection. LIST ALL TAX LOT NUMBERS. e1;v at entl D • 7i 4 5i'/ / I Ake S©. r -- .11 ene/ 67 5. /4/Oh 57 a ..went'. e /'a1 pig alp ahletehedl rfe (4 ,)1 /I'fi 5 ±fit /P7 ht.401 j ei 5 //101 Quarter ''" t Section: Township. 5. Range: (This Information may be found on your tax statement.) RECEIVED MTV OF TI IKIMI A 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 prima:' contact with the City to whom all notices and reports will be sent Name: Phone: L 'd SHORT PLAT (P-SS) Address: P i A i x, 2 7 1 V tt INt IN l4 , !ij 206;) _ AX: qZ' - 673 - . 74 Signature: J '1 // ? ?4 / Dates_ Md,II3Q tf1IM"if i Web :0T t•0. ST OM RACE IVED DEC 21 2004 L'E0M r 4U +- DEC 2 1 2004 PERMIT CENTER Check items sttbmttted .n[ aosiiiistton Infergration Required May be waived In unusual oases, upon approval of both ,P'ub11c Works and-Planning . . APPLICATION MATERIALS: 1. Application Checklist 0 copy) indieatinnitems submitted with application. I/ 2. Completed Application Form and drawings (4 copies). v 3, One set of all plans reduced to 8 1/2" by 11 ". 4. Application Fee - up to 4 lots in LDR $500, other zones $1,000 • .. 5t01t� +"� ej 1 ills Pet- e1 s P 4 5. SEPA Environmental Checklist ((Or 5-9 lots, cut/f111 over 500 cubic yards see SEPA Application Pam ICE MATERIALS; .►n No( 4.0.0 C.--2 4.--4-$ PUBLIC 6. If the project requires SEPA review or involves a ;hurt plat of 5 - Slots: a 4' x 4' public notice board will be required on site within 14 days of the Department determining that a complete application has been received (see SEPA Application). 7. If the project involves a short plat of 5 -9 lots; One (1) set of mailing labels for oil property owners and tenants (residents or businesses) within 500 feet of the subject property. Note: Each unit in multiple-trolly buildings --e.g. apartments, condos, trailer parks - -must be includedssee SEPA Application) 8. If the project involves a short plat of 5 -9 lots: King County Assessor's map(s) which shows the location of each property within 500 ft. of the subject lot PROJECT DESCRIPTION AND ANALYSIS: ✓ 10. Vicinity Map with site location. v 11. Title Report Clearly establish status as legal lot(s) of record, ownership, all known easements and etteunabresices, must be dated within 45 days of application filing. '--- 12. Document sewer and water availability if provided by other than the City of Tukwila. -- 13. A written discussion of project consistency with decision criteria (see Application). 14. An required maintenance agreements, easements or other documents • • for recordui , t- 15. Technical Information Report MR) including feasibility analysis per King County Surface Water Des' 41 Manual CSWD . For additional dance contact Public Works. -)(t 5 - . 16. Provide sensitive area studies as needed per Tukwila's Sensitive Areas Ordinance (TMC 18.45) for example wetland or geotechnical reports. -- r 17. Printed computer plat closure or demonstrated mathematical plat closure on all lots, streets, RECEIVED DEC 2 1 LUU4 PERMIT CENTER A.1'P1 cJTE[_ "::r 1 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 each Department if you feel that certain items are not applicable to your project and should be waived, or should be submitted at a later date for use at the public hearing (e.g. colored renderings). Application review will not begin until it is detennined 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. City staff are available to answer questions about application materials at 206- 431 -3670 (Department of Community Development) and 206 -433 -0179 (Department of Public Works), Marais H'l?Mfin1 WHtfb:RI t' , fit 11C Check Wm! submitted :. • with a y•lication. '• , Iiiforillatleit Required Mciy be waived in unusual cases, upon approval of both Public FPorIcs.and Pranging . alleys and boundaries. Allowable error of closure shall not exceed one foot in 5,000 feet. PLAT SURVEY: a template is available from the City In AutoCAD format r/ .18 (a) The plat survey must include the name of the plat, graphic scale, space for the City of Tukwila file number and north arrow. It shall be drawn with black ink in record of survey format and include the elements listed at TMC 17.04.060 A. This shall be stamped by the surveyor. .z (b) Legal descriptions of the existing - -- �_ p ' sting sad proposed lots. • (c) The final plat documents must include all applicable certificates and approvals listed in the "Certificates and Approvals" section of this application (TMC 17.04.060). Sections for the surveyor and owner(s) must be signed prior to submittal. (d) Existing and proposed lot lines shall be shown solid with new lines called out and lot lines to be removed shall be shown dashed. - (e) Lot and block numbers shall begin with the number one (1) and be numbered consecutively without omission or duplication. 1. (f) Total lot or parcel sizes and average width of each proposed lot (min 50 ft. for residential). Y (g) Dash in required setback distances from all parcel lot Mines. v (h) Fire access lanes and turn: arounds per Fire Department standards. v (i) Loeation of all tracts to be dedicated to any public or private purpose shall be distinguished from lots intended for general development with notes stating their purpose and limitations. ,. 0) Locations of existing and proposed public street rights -of -way and private access easements. (k) Location, dimension and purpose of existing and proposed easements. Provide recorded documents which identify the nature and extent of existing easements. LANDSCAPE PLAN: for 5-9 lot short plats 6,,;, w 1 b„ gee- ,,,,rlt p f Irs.vi ' (a) Landscape planting plan stamped and signed by a Washington State licensed landscape architect. Plan must include at least one tree in the front yard of each lot and meet Public Works standards (TMC 17.20.030 G). Plans must include the type, quantity, spacing and location of all plantings. Maximum sheet size 24" x 36 ". (b) Show all existing trees to be retained and any tree protection measures required (for example fencing at drip line). SENSITIVE AREAS PLAN: 0 Gr >< f . 4; 20 (a) Location of all sensitive areas (e.g. streams. wetlands, slopes over 20 %, coal mine areas and important geological and archaeological sites). For stream frontage provide existing and proposed top of stream bank, stream bank toe, stream mean high water mark, and base flood elevation (i.e., 100 yr. flood). Maximum sheet size 24" x 36". v (b) Location of all required sensitive area buffers, setbacks tracts and protection m easures. (c) Show all trees over 4" caliper, indicating those to be retained 4— (d) Show proposed lot and tract lines. CIVIL PLANS: 4,,v., ,.. 4, r ., 61.3c/4 a l% L X r 64-4 i 21. (a) One set of all civil plans and analyses shall be stamped, signed and dated by a licensed professional engineer. Include a graphic scale and north arrow. Maximum sheet size 24" x 36 ". i (b) Vertical datum NAVD 1988 and horizontal datum NAD 83'91. Conversion calculations to NGVD 1929, if in a flood zone or flood -prone area. b ismer S'd RECEIVED DEC 21 2004 DEl/ELO N rid /ma tfutDlfli Wtibt 170, ST 03G btfcprmation I1eguired... , Response Total existing lots prior to Short Plat. /B Total lots in this Short Plat. 6 B /dg / oprl 5 - p 4c e..... Total acres involved in the Short Plat. ,2 • 9 Z Constraints (sensitive area, right of way, retention /detention areas) In acres or sf. 9Z , 5 70. 5 Any preexisting uses? A/D . Overall density (lots /acre). 2 o Q L f // (`* tom, GhecRiteins; inured ' ' v�iE1t. spplicatton: ' 'I nformaltih liew step ,Iris .be waiveetf imunustsal.cases, approval of both Public FfTprks'gkg Plannirsg • • . • • ' (c) Existing (dashed) and proposed (solid) topography at 2' intervals (minimum 20 ft. beyond the p operty lone). J v (d) Total expected cut and Ell for plat buildout. '/ (e) Existing and proposed utility easements and improvements, on site and in street (water, sewer, power, natural gas, telephone, cable). Schematic designs`to be provided regardless of purveyor (e.g. site line size, location, and size of public main). No capacity capes, invert depth, valve locations or the like are needed. r V (f) Storm drainage design at least 90% complete, which meets the KCSWDM. Call out total existing and proposed impervious surface in square &et. Include all storm drainage conveyance systems, water quality features, detention structures, maintenance access and safety features. J, (g) Locate the nearest existing hydrant and all proposed hydrants. - . y (Li) Show the 100 yr. flood plain boundary and elevation as shown on FEMA maps. i (i) Plan, profile and cross- section for any right- of-way improvements. (j) Show planned access to lots, driveways, fat access lanes and tuurarounds. _ (k) Show the location and distance to proposed property lines of all existing structures, indicating those to be removed. Show the expected location of all new buildings. , (1) Show proposed lot and tract lines. RECEIVE! IDEC 21 2004 D FV rM OPM NT I GROWTH MANAGEMENT ACT REQUIRED INFORMATION 9'd Md /aJa tilIhi'+Ill t tiSp :0T b0. ST D3J CITY OF TUKWILA Department of Community Development 6300 Southcenter Boulevard. Tukwila, WA 98188 Telephone: (206) 431 - 3670 FAX (206) 431 - 3665 email. tukplan @ci,tukwila.wa.us AFFIDAVIT OF OWNERSHIP AND HOLD HARMLESS PERMISSION TO ENTER PROPERTY STATE OF WASHINGTON COUNTY. OF KING The undersigned being duly sworn and upon oath states as follows: I. I am the current owner of the property which is the subject of this application. 2' All statements contained in the applications have been prepared by me or my agents and are true and correct to the best of my knowledge. 3. The application is being submitted with my knowledge and consent. 4. Owner `rants the City, its employees, agents, engineers, contractors or other representatives the right to enter upon Owner's real property, located at for the purpose of application review, for the limited time necessary to complete that purpose. S. Owner agrees to hold the City harmless for any loss or damage to persons or property occurring on the private property during the City's entry upon the property, unless the loss or damage is the result of the sole negligence of the City. 6 The City shall, at its discretion , cancel the application without refund of fees, if the applicant does not respond to specific requests for items on the "Complete Application Checklist" within ninety (90) days. EXECUTED at irtOede (city), GL �* a ( state), on , 20 dY /e s0 S �pt�S 7y (Prin e (A44r 'hone A!*' ber) (1 , 96e;74 (Signature) On this day personally appeared before me R C ka -rt1l S • Q -e 0 Se t to me known to be the individual who executed the foregoing instrument and acknowledged that he/she signed the same as his/her voluntary act and deed for the uses and purposes mentioned therein. 1 SUBSCRIBED AND SWORN TO BEFORE ME ON T IS 1 DAY OF ) t.kmc , 20 (Y t/ ARY PUBJcIC in and for the State of Washington residing at 1543, t . My Commission expires on RECEIVED rIN ^%r. .,• .• DEC 2 1 cuu4 PERMIT CENTEh REc � • DEC 2 „ DEVELUNMENT 12/17/2004 17:43 FAX 206 628 5657 CHICAGO TITLE UNIT 10 Y z 11 CHICAGO TIth INSURANCE COMPAN Y 701 FIFTH AVENUE, #3400, SEATTLE, WA 98104 O $ D $ R R E F R R K N C E SUPPLEMENTAL NUMBER: SELLER: PURCHASER /BORROWER: PROPERTY ADDRESS: Our Title Commitment PARAGRAPH NUMBERS) 2, 3, 4, 5, 6, 7, AND 11 OF OUR COMMITMENT IS (ARE) ELIMINATED. THE FOLLOWING NOTE(5) HAS (HAVE) BEEN ADDED TO OUR COMMITMENT: NOTE 2: GENERAL AND SPECIAL TAXES AND CHARGES, PAID IN PULL: YEAR: TAX ACCOUNT NUMBER: LEVY CODE: ASSESSED VALUE -LAND: ASSESSED VALTJE- IMPROVEEMENTS: AMOUNT BILLED AND PAID; SUPPLEMENTAL COMMITMENT AFFECTS: TAX ACCOUNT NUMBERS: BLOCK 1; LOT 17 -- 322920- 0090 -06; LOT 18 LOT 19 -- 322920 - 0120 -70; LOT 20 LOT 21 -- 322920- 0140 -06, LOT 22 LOT 23 -- 322920 - 0160 -01; LOT 24 LOT 25 -- 322920- 0160 -07; LOT 26 LOT 27 -- 322920- 0200 -03; BLOCK 2: LOT 1 --- 322920- 0100 -04; LOT 2 LOT 3 -- 322920 - 0220 -09; LOT 4 1 RICHARD S. PEDERSEN WASHINGTON dated at 8:00 A.M. is 2004 SEE BELOW 2413 S 186,000.00 ;AGGREGATE) $ 0.00 $ 2,6:.3.63 (AGGREGATE) ea 322920 - 0210 -01; 322920 - 0230 -07; SEE NEXT PAGE ORDER NO: YOUR NO: UNIT NO: LOAN NO: 322920- 01 :0 -02; 322920 - 0130 -08; 322920 - 0150 -03; 322920 - 0170 -C9; 322920 - 0190 -05; I N F O R M A T I O N Supplemented as follows: 0002 PHONE: (206)628 FAX (206)628 -5657 001134229 FOSTER RIDGE 6 LOT BLA 10 RECEIVED -.TV no TI I (%A/II A DEC 2 1 2004 PERMIT CENTER RECEIVED i DEC 2 1 2004 DEVE O NT svrrt.c /sma /L 12/17/2004 17:43 FAX 206 628 5657 CHICAGO TITLE UNIT 10 u AC At CHICAGO TITLE INSURANCE COMPANY LOT 5 -- 322920- 024C -05; LOT 6 -- 322920 - 0250 -02; LOT 7 -- 322920 - 0260 -00 NOTE 3: GENERAL AND SPECIAL TAXES AND YEAR: TAX ACCOUNT NUMBER: LEVY CODE! ASSESSED VALUE -LAND: ASSESSED VALUE- IMPROVEMENTS: AMOUNT BILLED AND PAID: RICHARD S. PEDERSEN SUPPLEMENTAL COMMITMENT (Continued) $ 355.49 DECEMBER 13, 2004 At'THORIZED BY: KEITH EISENEREY JBMF CONSULTING ENGINEER JOHN B. FRIEL, PE PLS 5/5 1 /1 Z003 Order No.: 1134229 Y4ur No.: FOSTER RIDGE 6 LOT BLA Unit No.: 10 CHARGES, PAID IN FULL: 2004 322920- 0010 -03 2413 $ 26,030.00 $ 0.00 RECEIVED EACH LOT IS TOGETHER WITH PORTION OF VACATED STREET ADJOININ JEC 21 1fln4 w NOTE: THE FOLLOWING PARTIES HAVE BEEN SENT A COPY OP THIS SUPPLEMENTAL COMMITMENT: FV ELO PMEN r AFFECTS: LOT 1 OF BLOCK 1 OF THE UNRECORDED PLAT, TOGETHER WITH A PCRTION OF VACATED ALLEY ADJOINING ADJOINING THE LEGAL DESCRIPTION CONTAINED ON THE KING COUNTY TAX ROLLS UNDER THIS TAX ACCOUNT NUMBER INCLUDES AN EASTERLY PORTION OF SAID PREMISES, BEING A STRIP OF LAND APPROXIAMTELY 12' BY 100.81'. THERE HAS BEEN NO CHANGE IN THIS COMMITMENT SINCE APRIL 26, 2004, EXCEPT THE MATTERS NOTED HEREINABOVE_ SUli1Z242/X171A/0599 • t .NVi t Q,Rr, .L. t.. 7V AM. 1 �•r•U.fA1As i e� '� pl / '%w+Mjys,� fjr..j�'Ct Site address (attach map and legal description showinydrant location and size of main): ./ t � 1 � � �, in 4 R' cGl a d 41�M ntEME " "I'll °TAt >.� 'z. t e' 4. Eros .e. Ai r,,F.,.a..,�. �R�n�,.in ! ,Ta'�su�, r. J CS rl 4 - mod/C f Name: Address: /70\ £ 2 7, Evefeti 16'.4 96706 Phone: 425_ 77/ ? 2. Name:; Address: Phone: This certificate is for the purposes of: g Residential Building Permit Commercial /Industrial Building Permit ❑ Rezone Estimated number of service connections and water meter size(s): Vehicular distance from nearest hydrant to the closest point of structure is rI ft. Area is served by (Water Utility District): # / 2' Ownet Agent Signature 1. The proposed project Is within rt..te (City /County) 2. 0 No improvements required. 3. ,The Improvements required to upgrade the water system to bring it into compliance with the utilities' comprehensive or to meet the minimum flow requirements of the project before connection end to meet the State cross connection control requirements: ._(, Kt; LA- Ir z 4 ,,..�� (( r4 -1�p t en 4 tab c i o p mss it ( �iioivy (9c ue (9 c. A - 2_8 cf-y s (Use separate sheet it more mom Is needed) 4. Based upon the improvements listed above, water can be provided and will be available at the site with a flow of /04f3 gpm at 20 psi residual for a duration of 2 hours at a velocity of 11, '2- fps as documented by the attached calculations. 5 Water availability: ceptabie service can be provided to this project Acceptable service cannot be provided to this project unless the improvements in Item 8 -2 are met. System is not capable of providing service to this project. CITY OF Tuxes /L4 Community Development Department -Permit Center 6300 Southcenter Blvd., Suite 100 Tukwila, WA 98188 R ECEIVED DEC 211004 OEVE OPe NT - Permit- Center /Buiad,- Divisioni :- .- - 106.431 -3670 Public Works Department: 206-433-0179 Planning Division: 206 -431 -3670 3•. f'2G�e ) I hereby certify that the above information is true and correct. � ' CO , - ii- CO„ pJ 7 i z! Agency/ hone 2c,- 2`f2– ?C ❑ Preliminary Plat V ' CERTIFICATE OF WATER AVAILABILITY Required only if outside City of Tukwila water district RECEIVED C.ITV OF TI WWII A DEC 2 1 2004 PERMIT CENTER PERMIT NO.: ❑ Short Subdivision r . ❑ Other 5/7 3/25/ 7" Date 3 — o'ZR - (9g By Date - er 3 —Z-Y – vS' This certificate is not valid without Water District No. 125's attachment entitled "Attachment to Certificate of Water Availability." t Applicant's Signature %li " t District Representative ATTACHMENT TO PERMIT CENTER CERTIFICATE OF WATER AVAILABILITY E C EI VFW DEC KING COUNTY WATER DISTRICT NO. 125 o OMMU 12 0 04 EL p yEA► The following terms and conditions apply to the attached Certificate of Availability ( "Certificate "). I. This Certificate of Water Availability is valid only for the real property referenced herein for the sole purpose of submission to the City of "- 440;lc� "Cit This Certificate is issued at the request of the City, and is not assignable or transferable to any other party. Further, no third person or party shall have any rights hereunder whether by agency or as a third party beneficiary or otherwise. 2. The District makes no representations, express or implied, that the applicant will be able to obtain the necessary permits, approvals, and authorizations from the City or any other applicable land use jurisdiction or governmental agency necessary before applicant can utilize the utility service which is the subject of this Certificate. 3. As of the date of the issuance of this Certificate, the District has water available to provide utility service to the real property which is the subject of this Certificate, and the utility systems exist or may be extended by the applicant to provide service to such property. However, the issuance of this Certificate creates no contractual relationship between the District and the applicant or the City, and the issuance of this Certificate may not be relied upon and does not constitute the District's guarantee that water utility service will be available to the real property at the time the applicant may apply to the District for such service. 4. Application for and the possible provision of District utility service to the real property which is the subject of this certificate shall be subject to and conditioned upon the availability of water service to the real property at the time of such application, as well as all federal, state, and District laws, ordinances, policies and regulations in effect at the time of such application for utility service, including conservation, water restrictions, and other policies and regulations then in effect. / Date 3`z5/D 41 RECEIVED CITY OF TI WWII A DEC 21 2004 Date 31a,5/69 Part A:. (To Be Completed by' Purpose of Certificate: • , 1 ❑ Building Permit CI Preliminary Plat or PUD ® Other 104 if tie a j asfYhtMT ❑ Short Subdivision ❑ Rezone Proposed Use: 6 Jolt 5B Residential Single Family ❑ Residential Multi- Family ❑ Commercial ❑ Other Applicants Name: T.64.1 n j- e-1 Phone: ci 21*---- �1— 3 P 2 Property Address or Approximate Location: Tax Lot Number. S 13 9 Sj- 4-- 'f 6 A r e - S. 3 2.2/zo -- C O TO Legal Description(Attach Map and Legal Description if necessary): A PORTION OF GOVERNMENT LOT 1, SECTION 15, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M., IN KING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS: LOTS 17 TO 27, INCLUSIVE, BLOCK 1 AND LOTS 1 TO 7, INCLUSIVE, BLOCK 2, HELLWIG'S ADDITION TO FOSTER, ACCORDING TO THE UNRECORDED PLAT THEROF. Part 'B:;(To Be Completed bySewerAgency) by side sewer connection only to an existing 6 �� 1. El Sewer Service will be size sewer a. provided f) feet from the site and the sewer system has the capacity to serve the proposed use. OR ❑ b. Sewer service will require an improvement to the sewer system of. ❑ (1) feet of sewer trunk or lateral to reach the site; and/or ❑ (2) the construction of a collection system on the site; and/or ❑ (3) other (describe): 2. (Must be completed if 1.b above is checked) ❑ a. The sewer system Improvement Is in conformance with a County approved sewer comprehensive plan, OR ❑ b. The sewer system improvement will require a sewer comprehensive plan amendment. 3. ® a. The proposed project Is within the corporate limits of the District, or has been granted Boundary Review Board approval for extension of service outside the District, OR ❑ b. Annexation or BRB approval will be necessary to provide service. 4. Service Is to the following: PERMIT: $ subject a. District Connection Charges due prior to connection: GFC: $ SFC: $ UNIT: $ TOTAL: $ (Subject to Change on January 1st) King County/METRO Capacity Charge: Currently, $1867.54 /residential equivalent, will be billed directly by King County after connection to the sewer system. (Subject to change by King Co/Metro without notice.) b. Easements; CI Required May be equi ed c. Other: C144 ye; Iv be Ja" ? v ,Pre/ of- tr "e. 4 co wi eciivm �,//..)) rryy yy Sr���wv" at t} � / fir. ♦ �'!;r"F r� w� � °,vi By 14816 Military Road South ._ R P.O. Box ;50 Tukwila, t A 95168 .DEC 2 1 cuu4 Phone: (206) 242 -3236 Fax: (206) 2424527 PERMIT CENTER ERTIFICATE OFSEWER.AVAILABILITY /NON AVAILABILIT VI Certificate of Sewer Availability OR ❑ Certificate of Sewer Non - Availability I • = •y certify that th rom e date of sig bov = ewer agency information is true. This certification shall be valid for one year re. / k e -- Title 14/0 y Date . ATTACHMENT TO VAL VUE SEWER DISTRICT . CERTIFICATE OF SEWER AVAILABILITY/NON-AVAILABILITY . The - following terms and conditions apply to .the attached Val Vue Sewer District ( "District ") Certificate of Sewer Availability/Non - Availability ( "Certificate "). 1. This Certificate is valid only for the real property referenced herein ( "Property"), which is in the District's service area, for the sole purpose of submission to the King County - Department of Developmept and Environmental Services, King County Department of Public Health, City of Seattle, City of Tukwila, City of Burien and/or City of SeaTac. This Certificate is between the District and the applicant only, and no third person or party shall have any rights hereunder whether by agency, third -party beneficiary principles or otherwise. 2. This Certificate creates no contractual relationship between the District and the applicant and its successors and assigns, and does not constitute and may not be relied upon' as the District's guarantee that sewer service will be available at the time the applicant may apply to the District for such service. 3. As of the date of the District's signature on this Certificate, the District represents that sewer service is available to the Property through sewer systems that exist or that may be extended by the applicant. The District makes no other representations, express or implied, including without limitation that the applicant will be able to obtain the necessary permits, approvals and authorizations from King County, City of Seattle, City of Tukwila, City of Burien, City of SeaTac or any other governmental agency before the applicant can utilize the sewer service which is the subject of this Certificate. 4.:: If the District or the applicant must extend the•Dristriot's'sewer system to provide sewer service to the Property,, the District or applicant may be required to obtain from the appropriate governmental agency the necessary . permits, approvals and authorizations. In addition, the governmental agency may establish requirements that must be satisfied as a condition of granting any such permits, approvals or authorizations, which may make impractical or impossible the provision of sewer services to the Property. t , 5. Application for and possible provision of sewer service to the Property shall be subject to and conditioned upon availability of sewer service to the Property at the time of such application, and compliance with federal, state, local and District laws, ordinances, policies, and/or regulations in effect at the time of such application. I acknowledge that I have received the Certificate of Sewer AvailabilitylNonAvailability and this Attachment, and fully understand the terms and conditions herein. Applicant's Signature Date 8953910011270798:01I5SY6011.DOC (1/26/04) -1- LOT LEGAL DESCRIPTIONS AFTER SHORT PLAT LOT 1 COMMENCING AT THE SOUTHWEST CORNER OF GOVERNMENT LOT 1, SECTION 15, TWP 23 N, R4E, WM; THENCE N Old 30' 53" E FOR A DISTANCE OF 220.01 FEET TO THE TRUE POINT OF BEGINNING; THENCE N Old 30' 53" E FOR A DISTANCE OF 90.47 FEET; THENCE S 48d 35' 15" E FOR A DISTANCE OF 86.16 FEET; THENCE S 17d 37' 40" E FOR A DISTANCE OF 74.17 FEET; THENCE N 65d 29' 36" W FOR A DISTANCE OF 89.25 FEET; THENCE N 88d 29' 07" W FOR A DISTANCE OF 8.76 FEET TO THE TRUE POINT OF BEGINNING. LOT 2 COMMENCING AT THE SOUTHWEST CORNER OF GOVERNMENT LOT 1, SECTION 15, TWP 23 N, R4E, WM; THENCE N Old 30' 53" E FOR A DISTANCE OF 310.48 FEET; THENCE S 48d 35' 16" E FOR A DISTANCE OF 86.16 FEET TO THE TRUE POINT OF BEGINNING; THENCE S 65d 29' 36" E FOR A DISTANCE OF 35.76 FEET; THENCE N 90d 00' 00" FOR A DISTANCE OF 27.37 FEET; THENCE S 56d 37' 40" E FOR A DISTANCE OF 36.83 FEET; THENCE S 43d 30' 43" E FOR A DISCTANCE OF 40.44 FEET; THENCE S 76d 48' 29" W FOR A DISTANCE OF 53.19 FEET; THENCE S 53d 24' 06" W FOR A DISTANCE OF 36.61 FEET; THENCE N 24d 39' 48" W FOR A DISTANCE OF 31.80 FEET; THENCE N 17d 37' 40" W FOR A DISTANCE OF 74.17 FEET TO THE TRUE POINT OF BEGINNING. LOT 3 COMMENCING AT THE SOUTHWEST CORNER OF GOVERNMENT LOT 1, SECTION 15, TWP 23 N, R4E, WM; THENCE N Old 30' 53" E FOR A DISTANCE OF 169.31 FEET TO THE TRUE POINT OF BEGINNING; THENCE N Old 30' 53" E FOR A DISTANCE OF 50.70 FEET;THENCE S 88d 29' 07" E FOR A DISTANCE OF 8.76 FEET; THENCE S 65d 29' 36" E FOR A DISTANCE OF 89.25 FEET; THENCE S 24d 39' 48" E FOR A DISTANCE OF 76.42 FEET; THENCE N 65d 29' 38" W FOR A DISTANCE OF 135.15 FEET TO THE TRUE POINT OF BEGINNING. LOT 4 COMMENCING AT THE SOUTHWEST CORNER OF GOVERNMENT LOT 1, SECTION 15, TWP 23 N, R4E, WM; THENCE N Old 30' 53" E FOR A DISTANCE OF 101.96 FEET TO THE TRUE POINT OF BEGINNING; THENCE N Old 30' 53" E FOR A DISTANCE OF 67.35 FEET; THENCE S 65d 29' 36" E FOR A DISTANCE OF 135.16 FEET; THENCE S 24d 39' 48" E FOR A DISTANCE OF 12.69 FEET; THENCE S 82d 42' 44" W FOR A DISTANCE OF 78.20 FEET; THENCE N 65d 29' 36" W FOR A DISTANCE OF 31.82 FEET TO THE TRUE POINT OF BEGINNING. LOT 5 COMMENCING AT THE SOUTHWEST CORNER OF GOVERNMENT LOT 1, SECTION 15, TWP 23 N, R4E, WM; THENCE N Old 30' 53" E FOR A DISTANCE OF 30.00 FEET TO THE TRUE POINT OF BEGINNING; THENCE N Old 30' 53" E FOR A DISTANCE OF 71.97 FEET; THENCE S 65d 29' 36" E FOR A DISTANCE OF 31.82 FEET; THENCE N 82d 42' 44" E FOR A DISTANCE OF 23.72 FEET; THENCE S 69d 29' 36" E FOR A DISTANCE OF 32.09 FEET; THENCE S 17d 21' 54" E FOR A DISTANCE OF 54.75 FEET; THENCE N 87d 48' 48" W FOR A DISTANCE OF 100.01 FEET TO THE TRUE POINT OF BEGINNING. LOT 6 COMMENCING AT THE SOUTHWEST CORNER OF GOVERNMENT LOT 1, SECTION 15, TWP 23 N, R4E, WM; THENCE N Old 30' 53" E FOR A DISTANCE OF 30.00 FEET; THENCE S 87d 48' 48" E FOR A DISTANCE OF 100.01 FEET TO THE TRUE POINT OF BEGINNING; THENCE N 17d 21' 54" W FOR A DISTANCE OF 54.75 FEET; THENCE N 65d 29' 36" W FOR A DISTANCE OF 32.09 FEET; THENCE N 82d 42' 44" E FOR A DISTANCE OF 78.20 FEET; THENCE S 24d 39' 48" E FOR A DISTANCE OF 13.31 FEET; THENCE N 77d 37' 51" E FOR A DISTANCE OF 27.48; THENCE S 12d 53' 18" E FOR A DISTANCE OF 74.25 FEET; THENCE RECEIVED f:I VAFTIEWIIA DEC 2 1 2004 PERMIT CENTER N 87d 48' 48" W FOR A DISTANCE OF 81.04 FEET TO THE TRUE POINT OF BEGINNING. TRACT 99 COMMENCING AT THE SOUTHWEST CORNER OF GOVERNMENT LOT 1, SECTION 15, TWP 23 N, R4E, WM; THENCE N Old 30' 53" E FOR A DISTANCE OF 310.48 FEET TO THE TRUE POINT OF BEGINNING;THENCE N 01d30' 53" E FOR A DISTANCE OF 71.47 FEET; THENCE S 88d 29' 07" FOR A DISTANCE OF 30 FEET; THENCE N 54d 20' 54" E FOR A DISTANCE OF 65.26 FEET; THENCE S 33d 26' 06" E FOR A DISTANCE OF 141.82 FEET; THENCE S 82d 20' 06" E FOR A DISTANCE OF 244.54 FEET; THENCE S 29d 00' 36" E FOR A DISTANCE OF 168.40 FEET; THENCE S 59d 49' 07" W FOR A DISTANCE OF 204.79 FEET; THENCE S 87d 48' 48" E FOR A DISTANCE OF 136.63 FEET; THENCE N 12d 53' 18" W FOR A DISTANCE OF 74.25 FEET; THENCE S 77d 37' 51" W FOR A DISTANCE OF 27.48 FEET; THENCE N 24d 39' 48" W FOR A DISTANCE OF 70.67 FEET; THENCE N 53d 24' 06" E FOR A DISTANCE OF 38.61 FEET; THENCE N 76d 48' 29" E FOR A DISTANCE OF 53.19 FEET; THENCE N 43d 30' 43" W FOR A DISTANCE OF 40.44 FEET; THENCE N 56d 37' 40" W FOR A DISTANCE OF 36.83 FEET; THENCE N 90d 00' 00" W FOR A DISTANCE OF 271.37 FEET; THENCE N 65d 29' 36" W FOR A DISTANCE OF 35.76 FEET; THENCE N 48d 35' 16" W FOR A DISTANCE OF 86.16 FEET TO THE TRUE POINT OF BEGINNING. RECEIVED DEC 21 2004 COMMUNITY DEVELOPMENT LOT LEGAL DESCRIPTIONS AFTER SHORT PLAT LOT 1 COMMENCING AT THE SOUTHWEST CORNER OF GOVERNMENT LOT 1, SECTION 15, TWP 23 N, R4E, WM; THENCE N Old 30' 53" E FOR A DISTANCE OF 220.01 FEET TO THE TRUE POINT OF BEGINNING; THENCE N Old 30' 53" E FOR A DISTANCE OF 90.47 FEET; THENCE S 48d 35' 15" E FOR A DISTANCE OF 86.16 FEET; THENCE S 17d 37' 40" E FOR A DISTANCE OF 74.17 FEET; THENCE N 65d 29' 36" W FOR A DISTANCE OF 89.25 FEET; THENCE N 88d 29' 07" W FOR A DISTANCE OF 8.76 FEET TO THE TRUE POINT OF BEGINNING. LOT 2 COMMENCING AT THE SOUTHWEST CORNER OF GOVERNMENT LOT 1, SECTION 15, TWP 23 N, R4E, WM; THENCE N Old 30' 53" E FOR A DISTANCE OF 310.48 FEET; THENCE S 48d 35' 16" E FOR A DISTANCE OF 86.16 FEET TO THE TRUE POINT OF BEGINNING; THENCE S 65d 29' 36" E FOR A DISTANCE OF 35.76 FEET; THENCE N 90d 00' 00" FOR A DISTANCE OF 27.37 FEET; THENCE S 56d 37' 40" E FOR A DISTANCE OF 36.83 FEET; THENCE S 43d 30' 43" E FOR AlDISCTANCE OF 40.44 FEET; THENCE S 76d 48' 29" W FOR A DISTANCE OF 53.19 FEET; THENCE S 53d 24' 06" W FOR A DISTANCE OF 36.61 FEET; THENCE N 24d 39' 48" W FOR A DISTANCE OF 31.80 FEET; THENCE N 17d 37' 40" W FOR A DISTANCE OF 74.17 FEET TO THE TRUE POINT OF BEGINNING. LOT 3 COMMENCING AT THE SOUTHWEST CORNER OF GOVERNMENT LOT 1, SECTION 15, TWP 23 N, R4E, WM; THENCE N Old 30' 53" E FOR A DISTANCE OF 169.31 FEET TO THE TRUE POINT OF BEGINNING; THENCE N Old 30' 53" E FOR A DISTANCE OF 50.70 FEET;THENCE S 88d 29' 07" E POR A DISTANCE OF 8.78 FEET; THENCE S 65d 29' 36" E FOR A DISTANCE OF 89.25 FEET; THENCE S 24d 39' 48" E FOR A DISTANCE OF 76.42 FEET; THENCE N 65d 29' 38" W FOR A DISTANCE OF 135.15 FEET TO THE TRUE POINT OF BEGINNING. LOT 4 COMMENCING AT THE SOUTHWEST CORNER OF GOVERNMENT LOT 1, SECTION 15, TWP 23 N, R4E, WM; THENCE N Old 30' 53" E FOR A DISTANCE OF 101.96 FEET TO THE TRUE POINT OF BEGINNING; THENCE N Old 30' 53" E FOR A DISTANCE OF 67.35 FEET; THENCE S 65d 29' 36" E FOR Al DISTANCE OF 135.16 FEET; THENCE S 24d 39' 48" E FOR A DISTANCE OF 12.69 FEET; THENCE S 82d 42' 44" W FOR A DISTANCE OF 78.20 FEET; THENCE N 65d 29' 36" W FOR A DISTANCE OF 31.82 FEET TO THE TRUE POINT OF BEGINNING. LOT 5 COMMENCING AT THE SOUTHWEST CORNER OF GOVERNMENT LOT 1, SECTION 15, TWP 23 N, R4E, WM; THENCE N Old 30' 53" E FOR A DISTANCE OF 30.00 FEET TO THE TRUE POINT OF BEGINNING; THENCE N Old 30' 53" E FOR A DISTANCE OF 71.97 FEET; THENCE S 65d 29' 36" E FOR A DISTANCE OF 31.82 FEET; THENCE N 82d 42 44" E FOR A DISTANCE OF 23.72 FEET; THENCE S 69d 29' 36" E FOR A DISTANCE OF 32.09 FEET; THENCE S 17d 21' 54" E FOR A DISTANCE OF 54.75 FEET; THENCE N 87d 48' 48" W FOR A DISTANCE OF 100.01 FEET TO THE TRUE POINT OF BEGINNING. LOT 6 COMMENCING AT THE SOUTHWEST CORNER OF GOVERNMENT LOT 1, SECTION 15, TWP 23 N, R4E, WM; THENCE N Old 30' 53" E FOR A DISTANCE OF 30.00 FEET; THENCE S 87d 48' 48" E FOR A DISTANCE OF 100.01 FEET TO THE TRUE POINT OF BEGINNING; THENCE N 17d 21' 54" W FOR A DISTANCE OF 54.75 FEET; THENCE N 65d 29' 36" W FOR A DISTANCE OF 32.09 FEET; THENCE N 82d 42' 44" E FOR A DISTANCE OF 78.20 FEET; THENCE S 24d 39' 48" E FOR A DISTANCE OF 13.31 FEET; THENCE N 77d 37' 51" E FOR A DISTANCE OF 27.48; THENCE S 12d 53' 18" E FOR A DISTANCE OF 74.25 FEET; THENCE RECEIVED (ATV OF TI IKWII A DEC 2 1 2004 PERMIT CENTER N 87d 48' 48" W FOR A DISTANCE OF 81.04 FEET TO THE TRUE POINT OF BEGINNING. TRACT 99 COMMENCING AT THE SOUTHWEST CORNER OF GOVERNMENT LOT 1, SECTION 15, TWP 23 N, R4E, WM; THENCE N 01 d 30' 53" E FOR A DISTANCE OF 310.48 FEET TO THE TRUE POINT OF BEGINNING;THENCE N 01d30' 53" E FOR A DISTANCE OF 71.47 FEET; THENCE S 88d 29' 07" FOR A DISTANCE OF 30 FEET; THENCE N 54d 20' 54" E FOR A DISTANCE OF 65.26 FEET; THENCE S 33d 26' 06" E FOR A DISTANCE OF 141.82 FEET; THENCE S 82d 20' 06" E FOR A DISTANCE OF 244.54 FEET; THENCE S 29d 00' 36" E FOR A DISTANCE OF 168.40 FEET; THENCE S 59d 49' 07" W FOR A DISTANCE OF 204.79 FEET; THENCE S 87d 48' 48" E FOR A DISTANCE OF 136.63 FEET; THENCE N 12d 53' 18" W FOR A DISTANCE OF 74.25 FEET; THENCE S 77d 37' 51" W FOR A DISTANCE OF 27.48 FEET; THENCE N 24d 39' 48" W FOR A DISTANCE OF 70.67 FEET; THENCE N 53d 24' 06" E FOR A DISTANCE OF 38.61 FEET; THENCE N 76d 48' 29" E FOR A DISTANCE OF 53.19 FEET; THENCE N 43d 30' 43" W FOR A DISTANCE OP 40.44 FEET; THENCE N 56d 37' 40" W FOR A DISTANCE OF 36.83 FEET; THENCE N 90d 00' 00" W FOR A DISTANCE OF 271.37 FEET; THENCE N 65d 29' 36" W FOR A DISTANCE OF 35.76 FEET; THENCE N 48d 35' 16" W FOR A DISTANCE OF 86.16 FEET TO THE TRUE POINT OF BEGINNING. RECEIVED DEC 21 2004' COMMUNITY DEVELOPMENT DOBBS /FOX & ASSOCIATES Surveying & Mapping Richard Pedersen Tukwila Ridge Project Map Check LOT 1: POINT 203 204 205 222 223 203 LOT 2: POINT 205 206 207 208 209 210 211 212 222 205 N 01 °30'53 "E S 48 ° 35'16 "E S 17°37'40"E N 65 °29'36 "W N 59 °17'00 "W S 65 °29'36 "E S 90 ° 00'00 "E S 56 S 48 °18'19 "E S 47 ° 34'08 "W S 76 °48'29 "W. S 53 °24'06 "W N 24 °39'48 "W N 17 ° 37'40 "W BEARING Perimeter: 345.50 Error Closure: 0.0047 Error North: - 0.0003 Precision: 1:73,510.64 BEARING Perimeter: 335.30 Area: Error Closure: 0.0125 Error North: 0.0075 Precision: 1:26,824.00 DISTANCE 85.70 86.51 74.17 87.39 11.73 Area: DISTANCE 35.76 27.37 36.83 35.89 11.36 43.51 38.61 31.80 74.17 NORTH 7893.5857 7979.2558 7922.0318 7851.3446 7887.5938 7893.5854 5,591.5 s.f. or 0.128 acres Course: N 86 °56'53 "W East: 0.0047 NORTH 7922.0287 7907.1955 7907.1955 7886.9360 7863.0634 7855.3988 7845.4692 7822.4498 7851.3489 7922.0362 15255 Sunwood Blvd. S. #A-41 • Tukwila, WA 98188 (206) 243 -0427 • (206) 433 -1738 • Fax (206) 433 -1738 E -mail: billdfa @aol.com EAST 3608.1991 3610.4645 3675.3444 3697.8054 3618.2881 3608.2038 EAST 3675.3405 3707.8790 3735.2490 3766.0062 3792.8052 3784.4205 3742.0587 3711.0612 3697.7916 3675.3305 5,536.8 s.f or 0.127 acres Course: S 53 °07'48 "E East: - 0.0100 LOT 3: DOBBS /FOX • & ASSOCIATES Surveying & Mapping POINT BEARING DISTANCE NORTH EAST 202 7837.9125 3606.7253 N 01 ° 30'53 "E 55.69 203 7893.5830 3608.1974 S 59 °17'00 "E 11.73 223 7887.5914 3618.2817 S 65 ° 29'36 "E 87.39 222 7851.3421 3697.7990 S 24 ° 39'48 "E 31.80 212 7822.4431 3711.0687 S 24 ° 39'48 "E 44.68 213 7781.8390 3729.7130 N 65 °29'36 "W 135.16 202 7837.9032 3606.7292 LOT 4: Perimeter: 366.45 Error Closure: 0.0100 Error North: - 0.0093 Precision: 1:36,645.00 Area: 5,848.9 s.f. or 0.134 acres Course: N 22 ° 45'21 "W East: 0.0039 POINT BEARING DISTANCE NORTH EAST 201 7770.5856 3604.9451 N 01 ° 30'53 "E 67.35 202 7837.9121 3606.7254 S 65 °29'36 "E 135.16 213 7781.8478 3729.7093 S 24 ° 39'48 "E 12.69 214 7770.3155 3735.0046 S 82 °42'44 "W 78.20 220 7760.3956 3657.4364 S 82 ° 42'44 "W 23.72 221 7757.3866 3633.9080 N 65 ° 29'35 "W 31.82 201 7770.5856 3604.9546 Perimeter: 348.94 Error Closure: 0.0095 Error North: 0.0000 Precision: 1:36,730.53 Area: 5,793.7 s.f. or 0.133 acres Course: N 89 ° 43'32 "W East: 0.0095 15255 Sunwood Blvd. S. #A-41 • Tukwila, WA 98188 (206) 243-0427 • (206) 433-1738 • Fax (206) 433 -1738 E -mail: billdfa @aol.com LOT 5: DOBBS/FOX & ASSOCIATES Surveying & Mapping POINT BEARING DISTANCE NORTH EAST 200 7698.6405 3603.0427 N 01 ° 30'53 "E 71.97 201 7770.5854 3604.9451 S 65 0 29'35 "E 31.82 221 7757.3863 3633.8985 N 82 °42'44 "E 23.72 220 7760.3953 3657.4269 S 65 ° 29'35 "E 32.09 219 7747.0842 3686.6259 S 17 ° 21'54 "E 54.75 218 7694.8296 3702.9665 N 87 °48'48 "W 100.01 200 7698.6455 3603.0293 LOT 6: Perimeter: 314.36 Error Closure: 0.0143 Error North: 0.0050 Precision: 1:21,983.22 Area: 5,542.7 s.f. or 0.127 acres Course: S 69 ° 37 1 04 "E East: - 0.0134 POINT BEARING DISTANCE NORTH EAST 218 7694.8248 3702.9768 N 17°21'54"W 54.75 219 7747.0795 3686.6362 N 65 ° 29'35 "W 32.09 220 7760.3905 3657.4372 N 82 ° 42'44 "E 78.20 214 . 7770.3104 3735.0055 S 24 ° 39'48 "E 13.31 215 7758.2146 3740.5595 N 77 °37 "E 27.48 216 7764.1011 3767.4017 S 12 ° 53'18 "E 74.25 217 7691.7217 3783.9632 N 87 ° 48'48 "W 81.04 218 7694.8138 3702.9822 Perimeter: 361.12 Error Closure: 0.0123 Error North: - 0.0110 Precision: 1:29,359.35 Area: 6,163.3 s.f. or 0.142 acres Course: N 26 ° 08'49 "W East: 0.0054 15255 Sunwood Blvd. S. #A-41 • Tukwila, WA 98188 (206) 243-0427 • (206) 433-1738 • Fax (206) 433 -1738 E -mail: billdfaC@aol.com DOBBS /FOX & ASSOCIATES Surveying & Mapping TRACT A: POINT 217 216 215 212 211 210 209 208 207 206 205 204 230 229 228 227 226 225 224 217 N 12 ° 53'18 "W S 77 ° 37'51 "W N 24 ° 39'48 "W N 53 ° 24'06 "E N 76 °48'29 "E N 47 ° 34'08 "E N 48 °18'19 "W N 56 ° 37'39 "W N 90 ° 00'00 "W N 65 °29'36 "W N 48 °35'16 "W .N 01 ° 30'53 "E S 88 ° 29'07 "E N 54 °20'54 "E S 33 ° 26'06 "E S 82 ° 20'06 "E S 29 °00'36 "E S 59 ° 49'07 "W N 87 ° 48'48 "W BEARING DISTANCE NORTH EAST 74.25 27.48 70.67 38.61 43.51 11.36 35.89 36.83 27.37 35.76 86.51 71.24 30.00 65.26 141.82 244.54 168.40 204.79 136.63 7691.7327 3783.9589 7764.1121 7758.2256 7822.4488 7845.4681 7855.3977 7863.0623 7886.9350 7907.1944 7907.1944 7922.0276 7979.2516 8050.4667 8049.6737 8087.7108 7969.3604 7936.7435 7789.4718 7686.5158 7691.7290 Perimeter: 1550.92 Area: 93,145.7 s.f. or 2.138 acres Error Closure: 0.0133 Course: N 73 °43'07 "W Error North: - 0.0037 East: 0.0127 Precision: 1:116,610.53 15255 Sunwood Blvd. S. #A-41 • Tukwila, WA 98188 (206) 243 -0427 • (206) 433 -1738 • Fax (206) 433 -1738 E -mail: billdfa()aol.com 3767.3973 3740.5552 3711.0656 3742.0631 3784.4249 3792.8096 3766.0105 3735.2534 3707.8834 3675.3449 3610.4650 3612.3481 3642.3376 3695.3663 3773.5078 4015.8628 4097.5304 3920.5022 3783.9716 July 2003 PREPARED FOR Dick Pedersen P.O. Box 1518 Marysville, WA 98270 PREPARED BY Penhallegon Associates Consulting Engineers, Inc 750 Sixth Street South Kirkland, WA 98033 Phone: 425 -827 -2014 Fax: 425- 827 -5043 Dick Pedersen — Foster Ridge 6 -Lot B.L.A. July 2003 — Technical Information Report TABLE OF CONTENTS I. PROJECT OVERVIEW Figure 1 — TIER Worksheet Figure 2 — Vicinity Map Figure 3 — Drainage Basins, Sub - Basins and Site Characteristics Map II. CONDITIONS AND REQUIREMENTS SUMMARY III. OFFSITE ANALYSIS Task 1. Study Area Definition and Maps Task 2. Resource Review Task 3. Field Inspection Task 4. Drainage System Description and Problem Descriptions Task 5. Mitigation of Existing or Potential Problems Figure 4 — Downstream Flow Path Map Off -Site Analysis Drainage System Table N. FLOW CONTROL AND WATER QUALITY FACILITY ANALYSIS AND DESIGN Figure 5 — Existing Area Map Figure 6 — Developed Area Map V. CONVEYANCE SYSTEM ANALYSIS AND DESIGN Figure 7A — Conveyance Sub -Basin Map (North) Figure 7B — Conveyance Sub -Basin Map (South) Supplemental Conveyance Sub -Basin Area Calculations VI. SPECIAL REPORTS AND STUDIES VII. OTHER PERMITS VIII. ESC ANALYSIS AND DESIGN IX. BOND QUANTITIES, FACILITY SUMARIES, AND DECLARATION OF COVENANT X. OPERATIONS AND MAINTENANCE MANUAL List of Appendices Appendix A Appendix B Appendix C Appendix D Appendix E Operations and Maintenance Manual Flow Control Calculations Water Quality Calculations Wetland Hydrology Bond Quantity Worksheet and Facility Summary Page 1 Page 2 Page 4 Page 4 Page 4 Page 4 Page 4 Page 7 Page 8 Page10 Page 12 Page 13 Page 14 Page 15 Page 16 RECEIVED NOV 0 7 2003 T UKWfLA PUBLIC WORKS j2U)o3 1 04 Dick Pedersen — Foster Ridge 6 -Lot B.L.A. July 2003 — Technical Information Report Page 1 L PROJECT OVERVIEW The 0.80 -acre Foster Ridge Six -Lot Boundary Line Adjustment project site is located along east side of the vacated 46th Avenue South right -of -way north of the intersection with South 140th Street and extending approximately 80' north of the intersection with South 139th Street, in the City of Tukwila. This site is within the SE 1/4 of Section 15, Township 23 North, Range 4 East, West Meridian, in the City of Tukwila, King County, Washington. For general location, see Figure 2, Vicinity Map. The property is zoned Low Density Residential (LDR) by the City of Tukwila. The scope of work for the Foster Ridge Six -Lot Boundary Line Adjustment project includes the development of approximately 0.80 acres for 6 residential lots. These 6 lots will be obtained by a Boundary Line Adjustment from an area of existing lots and open space owned by the developer, Parkside Management. Proposed improvements are to include site grading, onsite and offsite storm drainage systems, onsite and offsite water systems, and an onsite side sewer system. No frontage improvements are included as part of this proposal. An existing wetland with a 50 -foot buffer is adjacent to the project site on the east. This project proposes no disturbance of the wetland. Existing site conditions used for storm system design calculations were taken from the topographic survey provided by JBMF, Inc. and a visual inspection of the site. Under existing conditions there are 0.79 acres of till forest and 0.01 acres of effective impervious area. Under proposed development conditions the total impervious area would be approximately 0.31 acres or 39% of the total site. The additional 0.49 acres would be till grass. This project site is outside of the limits for the King County Soils Mapping. Soil type was determined as "till" based on the Geotechnical Engineering Report. The site is underlain by till soils and generally slopes from southwest to northeast from an elevation of 226 in the southwest corner of the site to an elevation of 188 in the northeast corner of the site. Figure 1. TIR Worksheet King County Department of Development and Environmental Services TECHNICAL INFORMATION REPORT (TIR) WORKSHEET Project Owner Dick Pedersen Address P.O. Box 1518 Marysville, WA 98270 Phone 360- 659 -0808 Project Engineer Phil Cheesman. P.E. Company PACE Engineers Address/Phone 425 -827 -2014 ❑ Subdivision ❑ Short Subdivision X Grading ❑ Commercial Project Name Foster Ridge Six Lot B.LA. Location Township 23 N Range 4 E Section 15 Project Size 0.79 acres Upstream Drainage Basin Size 2.53 ❑ DFW HPA ❑ COE 404 ❑ DOE Dam Safety ❑ FEMA Floodplain ❑ COE Wetlands ❑ Shoreline Management ❑ Rockery ❑ Structural Vaults X Other (see list in Section VII of Drainage Report) Drainage Basin Duwamish River Drainage Basin ❑ River ❑ Stream ❑ Critical Stream Reach ❑ Depressions/Swales ❑ Lake X Steep Slope: (up to 25 %) ❑ Floodplain (Middle Fork Snoqualmie) X Wetlands (adjacent to site) X Seeps/Springs X High Groundwater Table ❑ Groundwater Recharge Other Figure 1- cont. TIR Worksheet Soil Type Till Slopes 5 -25% ❑ Additional Sheets Erosion Potential High Erosive Velocities Medium MINIMUM ESC REQUIREMENTS DURING CONSTRUCTION X Sedimentation Facilities X Stabilized Construction Entrance X Perimeter Runoff Control X Clearing and Grading Restrictions X Cover Practices X Construction Sequence ❑ Other REFERENCE X City Tukwila Notice of Decision for BLA 10/18/02 0 0 0 0 ❑ Additional Sheets Attached LIMITATION/SITE CONSTRAINT Gives Preliminary Approval Conditions for BLA MINIMUM ESC REQUIREMENTS AFTER CONSTRUCTION X Stabilize Exposed Surface X Remove and Restore Temporary ESC Facilities X Clean and Remove All Silt and Debris X Ensure Operation of Permanent Facilities X Flag Limits of SAO and open space preservation areas ❑ Other Figure 1- cont. TIR Worksheet ACE WATER S ❑ Grass lined Channel X Pipe System ❑ Open Channel ❑ Dry Pond ❑ Wet Pond Facility Related Site Limitations Reference Facility Core Req. #3 Combined Vault Core Reg. #8 Combined Vault ❑ Tank X Vault ❑ Energy Dissapator ❑ Wetland ❑ Stream ❑ Infiltration ❑ Depression ❑ Flow Dispersal ❑ Waiver ❑ Regional Detention Method of Analysis KCRTS Compensation/Mitigation of Eliminated Site Storage Provided Onsite Brief Description of System Operation: Stormwater runoff will be collected and conveyed to a combined detention/water Quality vault subiect to level 1 flow control criteria. Detained runoff will discharge to offsite conveyance system in the unpaved 46'" Avenue South right of -vav then discharge to the existing system at Macadam Road. A two- orifice control structure will be used to regulate discharge from the detention vault Limitation Level 1 Flow Control Basic Water Quality Treatment X Cast in Place Vault ❑ Retaining Wall X Rockery > 4' High ❑ Structural on Steep Slope ❑ Other X Drainage Easement X Access Easement X Native Growth Protection Easement X Tract ❑ Other I or a civil engineer under my supervision has visited the site. Actual site conditions as observed were incorporated into this worksheet and the attachments. To the best of my knowledge the information provided here is accurate. Signed/Date 41 '2 1 - a 3 Parkside Management — Foster Ridge 6 -Lot B.L.A. March 2003 — Technical Information Report Figure 2. Vicinity Map Figure 2. Vicinity Map DESIGNED ALB DRAWN ALB CHECKED PDC LEGEND: 0.26 ACRES WETLAND GRAPHIC SCALE 40 0 20 40 (IN FEET ) 1 inch • 40 feet 80 IMF INII - - Call before you Djg. 1- 800 - 424 -5555 UNDERGROUND DERVNX NSA) SYM REVISION DATE BY APP'D ,.,.-." • Engineering Planning Surveying ▪ Penhallegon Associates Consulting Engineers, Inc. f g ]so SixtM1 Street south NlrMlana, VIA 98033 www o.rean n. PM: (425) 827-2014 4 1-800- 945 -s40e FAX: (425) e27 -55 3 Kirkland . S.ettle . Feder.: War . Portland R.S. PEDERSON P.O. BOX 1518 MARYSVILLE, WA 98270 REFERENCE INFORMATION FIELD BOOK: SURV. CPU FILE DATUM: DATE JULY 2003 SCALE 1 " -40' FOSTER RIDGE 8 -LOT B.L.A. FIGURE 3. DRAINAGE BASINS, SUBBASINS, AND SITE CHARACTERISTICS JOB NUMBER 98873.01 DWG NO .OFFSITE_DEV.Ewg SNEET FIG.3 OF Dick Pedersen — Foster Ridge 6 -Lot B.L.A. July 2003 — Technical Information Report Page 2 II. CONDITIONS AND REQUIREMENTS SUMMARY Conditions and requirements pertaining to surface water management for this project include the 8 Core Requirements and 5 Special Requirements listed in the 1998 King County Surface water Design Manual (KCSWDM). The following is a summary of the Requirements with a discussion of how the applicant proposes to meet each requirement. Core Requirement #1 — Discharge at the Natural Location Under existing conditions, runoff from the project site sheet flows in a northeasterly direction, with no defined point discharge location. Runoff from the southern portion of the proposed Six -Lot Boundary Line Adjustment sheet flows into the adjacent wetland then continues north towards the existing collection system on Macadam Road. Runoff from the northern portion of the site does not enter the wetland, but sheet flows northeasterly and is collected in the existing storm system at Macadam Road. Under proposed conditions, runoff would be conveyed northerly approximately 430' in a new offsite stormwater conveyance line, then easterly approximately 60' to discharge to the existing Macadam Road stormwater system, the natural discharge location for site runoff. Core Requirement #2 — Offsite Analysis A level 1 downstream analysis was conducted on March 14, 2003 and on April 22, 2003 in order to assess potential offsite drainage impacts associated with development of the project site, and to propose appropriate mitigations of those impacts. The two discharge locations listed in Core Requirement #1 above were evaluated. See section III of this TIR for a detailed description of impacts and mitigations associated with the downstream drainage system. Core Requirement #3 —Flow Control This project site is subject to level 1 flow control requirements of the 1998 KCSWDM. Level 1 flow control requires maintaining the predevelopment peak flow rates for the 2- year and 10 -year post development runoff events. An underground detention vault is proposed to meet the level 1 flow control requirement for this project. Core Requirement #4 — Conveyance System The conveyance system was designed to at a minimum convey the 25 -year peak flow. The rational method, which is a conservative method of estimating peak flows, was used for conveyance calculations. See Section V of this report for conveyance system analysis and design. Core Requirement #S — Erosion and Sediment Control A Temporary Erosion and Sediment Control (TESC) plan is included in the engineering plan set. The TESC plan was developed to comply with requirements of the 1998 KCSWDM. A discussion of the erosion and sediment control measures proposed for this site are contained in Section VIII of this report. Dick Pedersen — Foster Ridge 6 -Lot B.L.A. July 2003 — Technical Information Report Page 3 Core Requirement #6 — Maintenance and Operations A Maintenance and Operations Manual for the proposed onsite drainage system and facilities is included in Appendix A of this report. Core Requirement #7 — Financial Guarantees and Liability Financial guarantees and liabilities will be posted by Parkside Management as required. Core Requirement #8 — Water Quality Proposed water quality facilities must treat runoff from new and/or replaced pollution generating impervious and pervious surfaces. Detained site runoff will be treated in a combined detention/water quality vault. Special Requirement #1 — Other Adopted Area - Specific Requirements There are no other adopted area- specific requirements that affect this site. Special Requirement #2 — Floodplain/Floodway Delineation The proposed project site is not within a floodplain per FEMA map No. 53033C0957 F. Special Requirement #3 — Flood Protection Facilities This requirement is not applicable as the site is not subject to flooding. Special Requirement #4 — Source Control The proposed project is subject to source controls in order to prevent rainfall and runoff water from coming into contact with pollutants. Special Requirement #5 — Oil Control The proposed project in not a high use site per the definitions given in section 1.3.5 of the 1998 KCSWDM, and therefore does not require oil control measures under the terms of Special Requirement #5. This site is subject to the Spill Control requirements, which will be met by having a floatable material separator installed in the catch basin immediately upstream of the combined detention/water quality vault. Dick Pedersen — Foster Ridge 6 -Lot B.L.A. July 2003 — Technical Information Report Page 4 III. OFFSITE ANALYSIS Level 1 Downstream Analysis • FIRM No. 53033C0957 F • Site Survey by Barrett Consulting Group (now Earth Tech) • Aerial Photograph • King County IMAP Data Task 1. Study Area Definition and Maps For the purposes of task 2 below, the study area shall extend 1 mile downstream of the proposed project discharge location, and also include the upstream offsite area tributary to the site. For purposes of tasks 3, 4, and 5, the study area shall extend downstream to a point on the drainage system where the proposed project site constitutes a minimum of 15% of the total tributary drainage area, but not less than 1 /4 mile. This project will not produce backwater effects upstream of the site, and therefore the upstream area was excluded from this analysis. However, the upstream tributary area does feed an onsite wetland, and Appendix D of this report addresses post - development wetland from this area. The 0.80 -acre Foster Ridge Six -Lot Boundary Line Adjustment project site is located along the east side of vacated 46th Avenue South right -of -way north of the intersection with South 140th Street and extending approximately 80' north of the intersection with South 139th Street, in the City of Tukwila. This site is within the SE 1 /4 of Section 15, Township 23 North, Range 4 East, West Meridian, in the City of Tukwila, King County, Washington. For general location, see Figure 2, Vicinity Map. Task 2. Resource Review A resource review was conducted to determine potential problems downstream of the project site. The following is a list of references used in gathering information for the downstream analysis. Task 3. Field Inspection A Level 1 downstream analysis was conducted on March 14, 2003 and on April 22, 2003. The weather during both site visits was partly cloudy with occasional showers. Temperatures ranged in the 50's. The downstream analysis was performed to assess potential offsite drainage impacts associated with development of the project site, and to propose appropriate mitigations of those impacts. Two discharge locations were evaluated. Task 4. Drainage System Description and Problem Descriptions Under existing conditions, runoff from the project site sheet flows in a northeasterly direction, with no defined point discharge location. Runoff from the southern portion of the proposed Six -Lot Boundary Line Adjustment sheet flows into the adjacent wetland. Dick Pedersen — Foster Ridge 6 -Lot B.L.A. July 2003 — Technical Information Report Page 5 Runoff from the northern portion of the site does not enter the wetland, but sheet flows northeasterly and is collected in the existing storm system at Macadam Road. Site runoff from the wetland area sheet flows in a northerly direction through brush and medium sized deciduous trees toward a number of single - family homes situated along the west/south side of Macadam Road. Stormwater continues to sheet flow through grassy and paved yard areas and around the homes before entering the storm drainage conveyance system on the west side of Macadam Road, approximately 250 feet north of the wetland. The storm drain system conveys runoff north along the west side of Macadam Road to the intersection with South 137 Street. A specific description of flow along Macadam Road to South 137 Street follows: Project area runoff from the wetland enters an approximately 40 foot long ditch approximately 650 feet south of South 137 Street. The ditch, roughly 2 feet deep and 2 feet wide at the bottom, directs flow in a northeasterly direction. Vegetation in the ditch consists of various plants. There were no signs of capacity or erosion related problems. Runoff flows from the ditch into an approximately 33 foot long, 12 -inch diameter, concrete culvert that crosses under a driveway. The culvert discharges into a roughly 46 foot long ditch that is vegetated with medium to high grasses and other plants. The ditch, approximately 2 feet wide at the bottom and roughly 2 feet deep, showed no signs of capacity problems, erosion or sedimentation. The ditch directs flow into a 35 -foot long, 12 -inch . diameter, culvert connected to a catch basin that is located in a paved parking area. There were no indications for capacity problems noted for the catch basin. An approximately 94 foot long, 12 inch diameter, concrete culvert conveys stormwater north into a roughly 24 foot long ditch. The ditch is covered with a dense cover of short grasses and other short plants. Runoff flows through the approximately 2 feet wide and 2 feet deep ditch before entering a 32 foot long, 12 inch diameter, concrete culvert connected to a catch basin that is situated in a paved parking area. Some minor sediment deposits were observed at the downstream end of the ditch. There were no visible signs of capacity problems noted with respect to the ditch and the culvert. From the catch basin an 85 -foot long corrugated metal pipe conveys water into an approximately 55 foot long, 2 to 3 foot deep, and 2 foot wide ditch. The sides of the swale are covered with grass and ivy. The bottom of the ditch shows some signs of minor mud and sediment build -up. There was no indication of any capacity problems. The ditch directs flow into a 34 foot long, 12 inch diameter, cast iron/concrete culvert under a driveway that discharges into an approximately 18 foot long ditch. The ditch is roughly 2 feet deep and 2 feet wide at the bottom. Street runoff appears to have eroded a 6 -inch wide and deep cut into the ditch bank on the upstream end. Mud and sediments have built up in the ditch such that the culvert outlet at the upstream end of the ditch is nearly half filled with sediment. The sides of the ditch are covered with grass and ivy but the vegetation on the muddy bottom of the ditch is sparse to non - existent. No sign of ditch overtopping was observed. Dick Pedersen — Foster Ridge 6 -Lot B.L.A. July 2003 — Technical Information Report Page 6 The swale empties into an approximately 19 foot long, 12 -inch diameter, concrete culvert. The inlet to the culvert was not clearly visible and appears to be silted in. The culvert conveys stormwater into a 64 foot long, 2 to 3 foot deep and approximately 2 foot wide ditch. The ditch is vegetated with a dense and uniform grass cover. No capacity or erosion problems were observed. Runoff in the swale eventually enters a 13 -foot long, 12 -inch diameter, concrete culvert connected to a storm drain manhole located near the southwest corner of the Macadam Road and South 137 Street intersection. Project area runoff from the northerly portion of the site generally sheet flows up to 200 feet in a northeasterly direction toward Macadam Road. Stormwater sheetflows around the homes located along Macadam Road and enters ditches and catch basins all along the previously described downstream flow path for runoff from the wetland. Under proposed conditions, runoff would be conveyed north approximately 430 feet via a new offsite stormwater conveyance line and then approximately 60 feet east to discharge to the existing Macadam Road stormwater system that is part of the natural discharge location for site runoff. The combined runoff from the south portion of the site and all of the stormwater from the northerly project site area flow from the manhole in the Macadam Road and South 137 Street intersection approximately 45 feet via a 24 inch diameter concrete culvert east under Macadam Road. Water discharges at the bottom of the steep, approximately 10 feet high easterly bank of Macadam Road. Runoff discharging from the culvert fans out and flows east through a low and dense ivy and blackberry cover just north of a private concrete driveway. Flows generally meander east through the ground cover. Some of the runoff flows immediately along the north edge of the concrete drive and has caused some very minor scouring immediately along the roadway. Approximately 40 feet east of the culvert outlet runoff combines with stormwater from another source and starts to form a small channel in thick blackberry brush 10 to 15 feet north of the driveway. The channel, roughly 1 to 2 feet wide with a water depth of a few inches, continues east for some approximately 420 feet before joining with another channel that flows north. There were no signs of erosion related or overtopping problems identified for the channel. Water now flows north approximately 300 feet north through trees and undergrowth until entering a culvert under South 136 Street. Runoff flows through the approximately 25 foot long culvert and continues north. There were no observable signs of overtopping or erosion for the approximately 2 foot wide channel. Water depth was estimated at 3 to 6 inches. Stormwater continues north approximately 450 feet through the backyard of private homes until reaching 48 Avenue South. The channel banks between South 136 Street and 48 Avenue South are grass, brush, and tree covered and become steeper and higher from south to north. The water channel near 48th Avenue South is no more than 2 feet wide and roughly 6 inches deeps. There were no indications of overtopping or erosion related problems. Dick Pedersen — Foster Ridge 6 -Lot B.L.A. July 2003 — Technical Information Report Page 7 Task 5. Mitigation of Existing or Potential Problems There are no problems identified which would be aggravated by the proposed development. E- o 2 4 t O e 2 a R N 2 W 1 0 U. 98- 4\inB04 Basin: Green River OFF -SITE ANALYSIS DRAINAGE SYSTEM TABLE SURFACE WATER DESIGN MANUAL, CORE REQUIREMENT #2 Subbasin Name: Duwamish River Subbasin Number: 1 2 2 2 2 2 2 2 2 2 2 Sheet Flow Roadside Ditch Pipe, 12 ", Conc. Roadside Ditch Pipe, 12" Pipe, 12 ", Conc. Roadside Ditch Pipe, 12 ", Conc. Pipe, 12 ", CMP Roadside Ditch Pipe, 12" Roadside Ditch Pipe, 12 ", Conc. Trees, Brush & Grass Lawns Wetland Vegetation Medium/Tall Grass, Wetland Vegetation Short Grasses, Weeds & Wild Flowers Grass & Ivy along sides, some sedimentation along bottom of ditch Sides are covered with Grass & Ivy. The bottom of the swale showed little vegetation. 15 -38 —5 —5 —5 —5 —5 —5 —5 —5 —5 —5 —5 —5 250' 290' 323' 369' 404' 498' 522' 554' 639' 694' 728' 746' 765' N/A N/A N/A N/A N/A N/A Some minor Sedimentation at Downstream End N/A N/A Some Sedimentation along Ditch Sediment Build -Up at Downstream End of Culvert Some Erosion, 6" wide & —4" deep Cut from Street Runoff at upstream end of Ditch. Sediment Build -Up, alon: Swale Bottom Significant Sediment Build -Up at Upstream end of Culvert N/A N/A N/A N/A N/A N/A No Aggravation of Condition E • ted N/A N/A No Aggravation of Condition Ex.: ted No Aggravation of Condition E ted No Aggravation of Problem Expected No Aggravation of Problem E . cted 2 Swale Dense Grass Cover —5 . 829' N/A N/A 2 Pipe, 12 ", Conc. —5 842' N/A N/A 3 Pipe, 24 ", Conc. Dense Grass Cover - 887' N/A N/A. ; 4 Meandering, undefined Swale • Low, dense Brush Cover over flow path - 927' Some very minor souring along edge of private Drive under suspected higher flows No Aggravation of Condition B apect ed t 5 Swale Wooded, Brush Covered Bank - 1,347' N/A N/A 6 Swale Wooded, Brush Covered Bank - 1,797' N/A N/A 98- 4VnB04 Basin Till Grass Impervious Total Onsite 0.24 0.31 0.55 Bypass Facilities 0.25 0.00 0.25 Total 0.49 0.31 0.80 Basin Till Forest Effective Impervious Total Onsite 0.79 0.01 0.80 Dick Pedersen — Foster Ridge 6 -Lot B.L.A. July 2003 — Technical Information Report Page 8 IV. FLOW CONTROL AND WATER QUALITY FACILITY ANLAYSIS AND DESIGN Existing Site Hydrology: The existing site is currently undeveloped and the land cover is pasture with some trees. The 0.80 -acre site is triangular shaped and is bounded by the unpaved South 140 Street right-of-way to the south, and the unpaved 46` Avenue South right-of-way to the west. The northwest border of the site is adjacent to an existing wetland and hillside sloping down towards Macadam Road. The project site slopes to the northeast with slopes ranging from 5 to 25 %. The site lies outside of the range of the King County Soils Mapping. Therefore, the KCRTS soil type was determined based on the soil types given in the geotechnical report. The geotechnical report lists the top layer of soils as fill, consisting of silty, fine sand or soft to medium sandy silt. This layer is underlain by a weathered/disturbed zone, then by Pre - Vashon Till. It was determined that these soils have a poor potential for infiltrating runoff and a KCRTS "till" soil group was assigned to the site. The regional scale factor (used in computing peak runoff) is 1.0 SeaTac. Under existing conditions, surface water runoff sheet flows away from the site to the northeast where it is eventually collected in the Macadam Road system. There is no point discharge from the site. The following table gives the existing condition land use assumptions: Developed Site Hydrology: Under developed conditions the majority of the land will be disturbed. The following is a description of how the site runoff will be detained and treated prior to discharge. Site runoff will be conveyed to an underground vault at the northwest corner of the site for detention/water quality treatment, and then will be discharged to a new 12 -inch diameter offsite storm line proposed within the unpaved 46th Avenue South right -of -way. The proposed offsite storm line runs north approximately 430 feet within the 46 Avenue South right -of -way, then turns east for approximately 60 feet where it connects with and discharges to the existing storm system in Macadam Road. The following table gives the post - developed condition land use assumptions: Dick Pedersen — Foster Ridge 6-Lot B.L.A. July 2003 — Technical Information Report Page 9 Performance Standards: Detention and water quality improvements to this site were designed using the 1998 King County Surface Water Design Manual (KCSWDM) with level 1 flow control and basic water quality treatment. Level 1 flow control requires maintaining the predevelopment peak flow rates for the 2 -year and 10 -year post development runoff events. Basic Water Quality performance goals are to remove 80% of the total suspended solids (TSS) for flows or volumes up to and including the water quality design flow or volume. A basic wetpond or wetvault has a volume three times larger than the volume of runoff from the mean annual rainfall, and is expected to meet the performance goal of 80% TSS removal listed above. Flow Control System: A combined detention/water quality vault is being used for onsite flow control. Approximately 4,480 cubic feet of detention storage is required. See Appendix B for flow control sizing calculations. Water Quality System: Water quality treatment will be provided in a combined detention/water quality vault. Approximately 1,741 cubic feet of water quality storage is required. See Appendix C for water quality treatment sizing calculations. A floatable material separator will be installed in the first catch basin upstream of the combined vault will be provided as an additional spill control measure. FEE NAME /DPDAIEO 8Y) P' \P98 \98677 \CALCS\EXSREA DWG (HPP) XREPS BENI10 .867Jco t, .86I3lof X t a 5 2 I 0 N X r 0 -I • W X C - 2 • y -< 33 • r yz m � • y > 0 c • ` w m z -1 c 0 0 m V O 0 1 \\ ` \ \ \ \ \\ \ \ \ 1 \ \ • • 0) 2000 07 4701 1• 1 ` • ` I ' '.. '- ,' �. 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I, 1 1 1 1 1 1 ' ' ] I l l \\ \ I 1 r � \ l / 1 1 1 1 1 1 1 V I I I I \ I I / / '' / (I ' iii; ' l'' 1 1 1 1 1 1 1 1 1 I 1 ' / / A, j 1 I 1 j1 1 \ 1 1, ! 1 1 I i 1 1 i �'ilf� I l m� 0 t V / Ico S 4524 4525 • W 0 0 OPEN 5ENA,CE 92,570 0 \ \\ I \\\ \ �\ \ 0 \ � \ \ ,\ ,\ \ \00 \ 0 \ 0 \ \ 0 v 0 0 00 0 0 c o 0 0 0 wetland edg 0 0 \ 0 coo 0 \I - -- Z:3' \ \ \ 0 \ \\ 0 ‘.) 9) 1 & 0 � 0 0 `\ 0 1 1 1 1 1 1 1 i 1.- ,O 1 \ \ ■ 0' /0 � 0 ` v\ 0O O \ 1 0 0 , 1 o'\\ ` LEGEND: 1 1 1 II\ ' C: I i r\ 1 � " d 1 _1 0 / 1 0 C 1 1 /1 A 1 GRAPHIC SCALE 20 0 10 20 (15 Fen ) I inch = 20 feet a IM IM M 0.31 ACRES IMPERVIOUS 0.24 ACRES TILL GRASS 0.25 ACRES BYPASS Call before you D =g. 1- 800 - 424 -5555 ISIDEPOROU10 SERUM (USA) W.A. I Issmiss 01/11/06 1 E(512ED NPP DRAM EPP CHECKED PDC sw RENSP N! DA1E BY APPt Engineering Planning a Surveying �IT Penhallegon Associates Consulting Engineers, Inc. 750 S. South KwkM. Mu 9803.1 .�.Wreen4 %.can L PH: Ws e27 - 002 200 I- 800 -945 -8408 FAX: (425) 827 5043 KLA/ad . saaKN • Federal WAS • Prot0Ad R.S. PEDERSEN P.O. BOX 1518 MARYSVILLE, WA 98270 REFERENCE INFOfh101101 IDATE FIELD BOOR JULY 2003 SURY. CPU 011E SCALE DANIA: 1 - -20' FOSTER RIDGE SIX LOT BOUNDARY LINE ADJUSTMENT DEVELOPED AREA MAP JOB NUMBER 98673.00 DWG NO. DEY_AIEA s1EEr FIG 6 BE Sub- Basin Total Area (Acres) Asphalt/Concrete Area (Acres), C =0.90 Grass Area (Acres), C =0.25 Composite C Value Z_ Or NMst g VIst1000 r N ti r r r r r r r gErgIEEEErgmEgg ° c 88 8 c 8 00 U U Cy U U v U U U U 0 U 0 U U U U 0 v 8 0 0 0 0 0 0 U 0.048 0.020 0.027 0.53 0.063 0.006 0.057 0.31 0.050 0.044 0.006 0.82 0.055 0.011 0.044 0.38 0.000 0.000 0.000 0.90 0.129 0.037 0.092 0.44 0.027 0.027 0.000 0.90 0.013 0.013 0.000 0.90 0.748 0.096 0.652 0.33 1.029 0.133 0.896 0.33 0.000 0.000 0.000 0.90 0.000 0.000 0.000 0.90 0.000 0.000 0.000 0.90 0.000 0.000 0.000 0.90 0.000 0.000 0.000 0.90 0.000 0.000 0.000 0.90 0.000 0.000 0.000 0.90 0.000 0.000 0.000 0.90 0.000 0.000 0.000 0.90 0.794 0.209 0.586 0.42 0.539 0.142 0.397 0.42 0.022 0.022 0. 000 0.90 0.035 0.035 0.000 0.90 0.022 0.022 0.000 0.90 0.020 0.020 0.000 0.90 0.022 0.022 0.000 0.90 0.033 0.033 0.000 0.90 Dick Pedersen - Foster Ridge 6 -Lot B.L.A. July 2003 - Technical Information Report Page 10 V. CONVEYANCE SYSTEM ANALYSIS AND DESIGN -Basin Areas and Composite C Value Conveyance capacity was sized for the 25 -year peak storm event using the rational method to calculate peak flows within each drainage sub basin. The following table shows catch basin sub -basin areas and the composite C values for each area. These values were used to check the conveyance capacity of the proposed storm drainage system. A conveyance analysis and conveyance sub -basin map follow. DRAINS TRENCH RDCO 6 RDCO 5 RDCO 4 NI NI 1 0.2 1111MIEWAIIIMMIlli RDCO 2 CB 1 DRAINS CULVERT iiiii111111111111111 WWI 1 11 1 M GMIME : w 1 I] Lk 1 1 i mg mow 1 u 10. RDCO 6 RDCO 5 11 1.90 II 1 0.1 MIN 2.' 8 I I 1 1 RDCO 4 RDCO 2 11 1.1 1111111Mil 11 11 11 NM� 1 1 1 '1 1 1 1 1 1 i 111 1 1 1 1 1 1111111111E 1.70M 1 1 1 imam 1 MEW EU am mug mu 0.02 muu 0.05 0.04 1 1 1111111E ME 1 1 1,110 1.34 UMW EMU 11M11111211 IOW ILISE . MINN 1 Tc (min.) i(R) I(R) 12 0.012 ' 11- 1 .0 gm , 1 I NM UM 0. 0.270 12.' 9 111111111111111 1111111111111 MINIM 4'. 25.00 5.0 22.0 MAU MUM IP tgoiim 111111111111111 X11 41.00°0 1, 0.1 0.0 0.2 CONVEYANCE SYSTEM ANALYSIS AND SIZING TABLE USING THE RATIONAL METHOD Location Sub Area C C *A Sum Q(R) Pipe Typ. Slope Q(F) V V L Tt % d/D Basin (ac) C *A (c.f.s.) (in.) n (ft.ft.) (pipe (pipe (at (ft) (min.) From To Number full) full) Q(R)) RDCO 1 B 1 RDCO 1 .3 .73 . 8 0. 0. .183 12. 1.12 0.9 . 1.12 200 13.2 0.1 7.11' Project: Foster Ridge 6 -Lot B.L.A. R= 25 yr P(R)= 3.40 LocationTukwila, WA Calcs by: HPP Job No: 98673.00 Date: 9/18/03 Page 1 of 21 CONVEYANCE SYSTEM ANALYSIS AND SIZING TABLE USING THE RATIONAL METHOD Location Sub Area C *A Sum Tc i(R) I(R) Q(R) Pipe Typ. Slope Q(F) V L Tt % d/D CB8 CB7 CB8 0.01 1.1 1_' 1 1.1 1.1• B B 7 0.90 0.01 2 0.01 6.3 0.80 2.73 0.80 .70 0.03 12 0.012 0.008 .10 2 0.01 .104 1 3.46 4.41 2.18 14.0 0.1 5.00% 7 15.88 3 74.0 5.00 o Basin (ac) C *A (min.) (c.f.s.) (in.) n (ft.ft.) (pipe (pipe (at (ft.) (min.) From To Number full) full) Q(R)) VAULT CB 15 VAULT ,_Max release rate from vault per KCRTS -t-► 0.18 12 0.012 0.105 12.54 15.97 12.26 55.0 0.1 5.00% 11 1. 1.11 '1 1.1 1 15 B 1 11 11 1. 1 1_I 1 11' CB B1 0.00 0. 8 2.32 12 .0 2 0.0 2 1.I 2 2 0. 2 .1 5 7 18. 2 .11 15. 10.7' .2 • 13 0. 5 1. 2 11 93.0 0.1 5. 11 1. 1.11 •I 1. 1 11 1_ 1.11 ' 1_, : _ _1' 1 _• :1 25. 2 30.00' o .0 19.00 o .00 • °o 1 I 1. 1 11 1: ._ I 10 1 5 1.11 1 11 t_ 1: 1.1 11' 1 2 EX. SYS. .90 2 2.08 .0 Project: Foster Ridge 6 -Lot B.L.A. R= 25 yr P(R)= 3.40 LocationTukwila, WA Calcs by: HPP Job No: 98673.00 Page 2 of 21 Date: 9/18/03 9/18/03 ConveyREV.XLS -240 X226.e7 8 i \ \ \ S' \ ■ \ t \ ` GRAPHIC SCALE JD 0 15 50 oar ) t IW . JO test LEGEND: BYPASS AREA CATCH BASIN BOUNDARY - -- - --- PROPERTY LINE 60 In Ell Ra CaII before you Dig. 1- 800 -424 -5555 LINDIPC.1,10 0/504 CORED tw RRM PPP OECI® PDC w>E AWE Eig)nsnanq Planning &wing ng Porshodkozon Assoctatse Consultb g Engineers, Inc. 700 S-M IWO South IOIbLL M 911033 .m.JOortP1... RI 028) 657 - 4 1-20:1-044-8405 F (4Z) 8Z1 -1043 R.S. PEDERSEN P.O. BOX 1518 MARYSVILLE. WA 98270 RIBAIDEE RRUSUECN FELD A0X: SLIM CPU FEE DANIA CAs APRIL 2003 5ME t.s�. ' FOSTER RIDGE SIX LOT BOUNDARY LINE ADJUSTMENT CONVEYANCE SUB -BASIN MAP (SOUTH) JS MR6Ee 98673.01 DRS ROCOMENCEdq SE EFIG 7BF C GRAPHIC SCALE m 0 15 30 00 (IF Y ) 1 t11i . JD teat Cali before you 1- 800 - 424 -5555 15OID aw ILE9GIED WP DUN IFP MED FTC sR REM DAIL Fn AWD Engineering Planning Surveying ; P enh*gegen Aasodetee ConzuI g Engineers, Inc. 760 52d1, Str.a South luamm. IN 56033 onrcpemangramno P.2 (425) 027 -2014 l Mt (425) 627 -5013 gAWtl • 256.10. • FMtw1 My • Iward R.8. PEDERSEN P.O. BOX 1518 MARYSVILLE. WA 98270 "EMILE MORMON NDD BOX S(RL 6U FtE• Balk DA1E JULY 2003 SCALE NONE FOSTER RIDGE SIX LOT BOUNDARY LINE ADJUSTMENT CONVEYANCE SUB BASIN MAP (NORTH) NagR 08873.01 PIC NaUIVAYNQ,d S sEEFIO 7AF Dick Pedersen — Foster Ridge 6 -Lot B.L.A. July 2003 — Technical Information Report Page 11 Supplemental Conveyance Sub -Basin Area Calculations: Sub -Basin Effective Impervious Area (EIA) Data: 6. DU /1:.58 Ac = 3.8 DU /GA % Imp. = 40.4% per Table 3.2.2.D (1998 KCSWDM) EIF = 65% per Table 3.2.2.E (1998 KCSWDM) Offsite Culvert to CB #17: (34,603.87sf)(0.404)(0.65) = 9,086.98sfEIA 34,603.87sf — 9,806.98sf = 25,516.89sf Till Grass Wall Drain: (23,476.79sf)(0.404)(0.65) = 6,165.01 sf EIA 23,476.79sf — 6,165.01 sf = 17,311.78sf Till Grass Sub -Basin Effective Impervious Area (EIA) Data: 4 DU /2.15 Ac = 1.86 DU /GA % Imp. = 23.6% per Table 3.2.2.D (1998 KCSWDM) EIF = 54.6% per Table 3.2.2.E (1998 KCSWDM) CB #10: (44,818.29s0(0.236)(0.546) = 5,775.11 sf EIA 44,818.29sf — 5,775.11 sf = 39,043.18sf Till Grass Curtain Drain to CB #9: (32,582st)(0.236)(0.546) = 4,198sf EIA 32,582sf — 4,198sf = 28,384sf Till Grass Itor Dick Pedersen — Foster Ridge 6 -Lot B.L.A. July 2003 — Technical Information Report Page 12 VI. SPECIAL REPORTSANJ STUDIES The following reports and special studies have been prepared for this project. November 13, 1998 — Subsurface Exploration, Geologic Hazard and Geotechnical Engineering Report by Associated Earth Sciences Dick Pedersen — Foster Ridge 6 -Lot B.L.A. July 2003 — Technical Information Report Page 13 VII. OTHER PERMITS The following is a list of potential permits and approvals associated with the proposed project that may need to be obtained: • Connection to and Extension of Water: King County Water District No. 125 • Connection to and Extension of Sewer: Val Vue Sewer District • Utilities, Site Grading and Access Driveways: City of Tukwila Public Works • Final recording of BLA: City of Tukwila and King County Dick Pedersen — Foster Ridge 6 -Lot B.L.A. July 2003 — Technical Information Report Page 14 VIII. ESC ANALYSIS AND DESIGN All temporary erosion and sediment control requirements have been designed in accordance with Core Requirement #5 of the 1998 KCSWDM section 1.2.5 Erosion and Sediment Control Standards. These standards prevent or reduce pollution of stormwater runoff caused by construction activities. The Temporary Erosion and Sediment Control Plan has been designed to minimize the amount of sediment laden runoff that leaves the project site as well as protect an adjacent wetland during construction and grading activities. The clearing and grading limits are clearly indicated on the drawings. The proposed site shall be an open excavation type construction. The site shall utilize a temporary construction entrance. This entrance will help to minimize the quantity of sediment that is carried away from the site via construction vehicles. Catch basin inlet protection will be used on existing and future catch basins to reduce sediment -laden water from entering the existing and proposed storm conveyance systems during construction. Site runoff will be conveyed through interceptor swales with rock check dams at 100 -foot intervals. Interceptor swales shall be located to convey runoff to the temporary sediment trap. Silt fencing will be placed along the perimeter of the site to prevent silt laden runoff from leaving the site. Also, a high visibility double silt fence will be installed to protect the adjacent wetland. Excavation shall be done in accordance with the Geotechnical Report recommendations to reduce potential slides and minimize local soil erosion. Plastic sheeting and sandbags will be implemented to reduce erosion of exposed soils on open cut excavation. All construction debris will promptly be removed from the site to minimize demolition and construction impacts on the site. The contractor shall implement additional Best Management Practices as required and/or recommended by the City of Tukwila inspector and as approved and/or required by other agencies during construction to prevent construction debris, waste, material, fuel, oil, lubricants, and other fluids from entering the public right of way, existing downstream storm conveyance system and adjacent wetland. The sediment trap has been designed in accordance with Appendix D of the 1998 KCSWDM. Dick Pedersen — Foster Ridge 6 -Lot B.L.A. July 2003 — Technical Information Report Page 15 IX. BOND QUANTIIILS, FACILITY SUMMARIES, AND DECLARATION OF COVENANT See Appendix E for copies of the Bond Quantities Worksheet and Storm Water Facilities Summary Sheet. No Declaration of Covenant will be filed for this site. Dick Pedersen — Foster Ridge 6 -Lot B.L.A. July 2003 — Technical Information Report Page 1 X. OPERATIONS AND MAINTENANCE MANUAL Appendix A "Maintenance Standards for Privately Maintained Drainage Facilities" from the 1998 KCSWDM has been included as the operations and maintenance manual for the drainage facilities proposed for this site. APPENDIX A OPERATIONS AND MAINTENANCE MANUAL 4PPENDIX A MAINTENANCE STANDARDS FOR PRIVATELY MAINTAINED DRAINAGE FACILITIES Manhole Catch Basins NO. 3 - CLOSED DETENTION SYSTEMS (PIPES/TANKS) Maintenance Defect Conditions When Maintenance is Needed Component Storage Area Plugged Air Vents One -half of the cross section of a vent is blocked at Debris and Sediment Joints Between Tank/Pipe Section Tank Pipe Bent Out of Shape Cover Not in Place Locking Mechanism Not Working Cover Difficult to Remove Ladder Rungs Unsafe 1998 Surface Water Design Manual KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL any point with debris and sediment Accumulated sediment depth exceeds 10% of the diameter of the storage area for length of storage vault or any point depth exceeds 15% of diameter. Example: 72 -Inch storage tank would require cleaning when sediment reaches depth of 7 inches for more than 'r4 length of tank. Any crack allowing material to be transported into facility Any part of tank/pipe is bent out of shape more than 10% of it's design shape Cover is missing or only partially in place. Any open manhole requires maintenance. Mechanism cannot be opened by one maintenance person with proper tools. Botts Into frame have less than 'A inch of thread (may not apply to self - locking lids.) One maintenance person cannot remove lid after applying 80Ibs of lift. Intent is to keep cover from sealing off access to maintenance. IGng County Safety Office and/or maintenance person judges that ladder is unsafe due to missing rungs, misalignment, rust, or cracks. See 'Catch Basins' Standards No. 5 Al Results Expected When Maintenance is Performed Vents free of debris and sediment All sediment and debris removed from storage area. Ali joint between tank /pipe sections are sealed Tank/ pipe repaired or replaced to design. Manhole is dosed. Mechanism opens with proper tools. Cover can be removed and reinstalled by one maintenance person. Ladder meets design standards allows maintenance person safe access. See 'Catch Basins' Standards No. 5 9/1/98 Maintenance :omponent Orifice Plate APPENDIX A MAINTENANCE STANDARDS FOR PRIVATELY MAINTAINED DRAINAGE FACILITIES General • CleanoutGate Overflow Pipe Manhole Catch Basin 9/1/98 NO. 4 - CONTROL STRUCTUREIFLOW RESTRICTOR Defect Trash and Debris (Includes Sediment) Structural Damage Damaged or Missing Obstructions Obstructions Condition When Maintenance is Needed Distance between debris build -up and bottom of orifice plate is Tess than 1 -1/2 feet Structure is not securely attached to manhole wall and outlet pipe structure should support at least 1,000 lbs of up or down pressure. Structure is not in upright position (allow up to 10% from plumb). Connections to outlet pipe are not watertight and show signs of rust. Any holes —other than designed holes —in the structure. Damaged or Missing Cleanout gate is not watertightor is missing. Gate cannot be moved up and down by one maintenance person. Chain leading to gate is missing or damaged. Gate is rusted over 50% of its surface area. Control device is not working properly due to missing, out of place, or bent orifice plate. Any trash, debris, sediment, or vegetation bloddng the plate. Any trash or debris blocking (or having the potential of blocking) the overflow pipe. See 'Closed Detention Systems' Standards No. 3 See "Catch Basins' Standards No. 5 A =2 Results Expected When Maintenance Is Performed All trash and debris removed. Structure securely attached to wall and outlet pipe. Structure in correct position. Connections to outlet pipe are water tight structure repaired or replaced and works as designed. Structure has no holes other than designed holes. Gate is watertight and works as designed. Gate moves up and down easily and is watertight Chain is in place and works as designed. Gate is repaired or replaced to meet design standards.. Plate is in place and works as designed. Plate is free of all obstructions and works as designed. Pipe is free of all obstructions and works as designed. See "Closed Detention Systems' Standards No. 3 See 'Catch Basins' Standards No. 5 1998 Surface Water Design Manual. Maintenance y�omponent General APPENDIX A MAINTENANCE STANDARDS FOR PRIVATELY MAINTAINED DRAINAGE FACILITIES NO. 5 - CATCH BASINS Defect Trash & Debris (Includes Sediment) Structure Damage to Comer of frame extends more than 3/4 inch past Frame and/or Top Slab curb face into the street (If applicable). Cracks in Basin Walls/ Bottom Sediment/ Misalignment Conditions When Maintenance is Needed Trash or debris of more than 1/2 cubic foot which is located immediately in front of the catch basin opening or is bloddng capacity of the basin by more than 10% Trash or debris (in the basin) that exceeds 1/3 the depth from the bottom of basin to invert the lowest pipe into or out of the basin. Trash or debris in any inlet or outlet pipe bloddng more than 1/3 of its height Dead animals or vegetation that could generate odors that could cause complaints or dangerous gases (e.g., methane). Deposits of garbage exceeding 1 cubic foot in volume Top slab has holes larger than 2 square inches or cracks wider than 1/4 inch (intent is to make sure all material Is running into basin). Cracks wider than 1/2 inch and longer than 3 feet, any evidence of soil particles entering catch basin through cracks, or maintenance person judges that structure is unsound. Cracks wider than 1/2 Inch and longer than 1 foot at the joint of any inlet/ outlet pipe or any evidence of soil particles entering catch basin through cracks. Basin has settled more than 1 Inch or has rotated more than 2 inches out of alignment Results Expected When Maintenance is performed No Trash or debris located immediately in front of catch basin opening. No trash or debris in the catch basin. Inlet and outlet pipes free of trash or debris. No dead animals or vegetation present within the catch basin. No condition present which would attract or support the breeding of insects or rodents. Frame is even with curb. Top slab is free of holes and cracks. Frame not sitting flush on top slab, i.e., separation Frame is sitting flush on top of more than 3/4 inch of the frame from the top slab. slab. Basin replaced or repaired to design standards. No cracks more than 1/4 inch wide at the joint of inlet/outlet pipe. Basin replaced or repaired to design standards. 1998 Surface Water Design Manual 9/1/98 A.3 APPENDIX A MAINTENANCE STANDARDS FOR PRIVATELY MAINTAINED DRAINAGE FACILITIES Maintenance �,,omponent Ladder Metal Grates (If Applicable) 9/1/98 NO. 5 - CATCH BASINS (CONTINUED) Defect Fire Hazard Vegetation Pollution Catch Basin Cover Cover Not in Place Locking Mechanism Not Working Cover Difficult to Remove Ladder Rungs Unsafe Trash and Debris Damaged or Missing. Conditions When Maintenance is Needed Presence of chemicals such as natural gas, oil and gasoline. Vegetation growing across and bloddng more than 10% of the basin opening. Vegetation growing in Iniet/outlet pipe joints that is more than six inches tall and less than six inches apart Nonflammable chemicals of more than 1/2 cubic foot per three feet of basin length. Cover is missing or only partially in place. Any open catch basin requires maintenance. Mechanism cannot be opened by on maintenance person with proper tools. Bolts into frame have less than 1/2 Inch of thread. One maintenance person cannot remove lid after applying 80 lbs. of lift; intent is keep cover from sealing off access to maintenance. Ladder is unsafe due to missing rungs, misalignment, rust, cracks, or sharp edges. Grate with opening wider than 7/8 inch. Trash and debris that Is bloddng more than 20% of grate surface. Grate missing or broken member(s) of the grate. Results Expected When Maintenance is performed No flammable chemicals present. No vegetation bioddng opening to basin. No vegetation or root growth present No pollution present other than surface film. Catch basin cover is closed Mechanism opens with proper tools. Cover can be removed by one maintenance person. Ladder meets design standards and allows maintenance person safe access Grate opening meets design standards. Grate free of trash and debris. Grate is in place and meets design standards. 1998 Surface Water Design Manual Maintenance c omponents xtemai: Rock Pad Dispersion Trench Internal: Manhole/ Chamber NO. 7 - ENERGY DISSIPATERS Defect Missing or Moved Rock Pipe Plugged with Sediment Not Discharging Water Properly Perforations Plugged. Water Flows Out Top of "Distributor' Catch Basin. Receiving Area Over -Saturated Wom or Damaged Post. Baffles, Side of Chamber Other Defects 1998 Surface Water Design Manual APPENDIX A MAINTENANCE STANDARDS FOR PRIVATELY MAINTAINED DRAINAGE FACILITIES Conditions When Maintenance is Needed Only one layer of rock exists above native soil in area five square feet or larger, or any exposure of native soil. Accumulated sediment that exceeds 20% of the design depth. Visual evidence of water discharging at concentrated points along trench (normal condition is a 'sheet flow' of water along trench). Intent is to prevent erosion damage. Over 1/2 of perforations in pipe are plugged with debris and sediment. Maintenance person observes water flowing out during any atom less than the design storm or its .causing or appears likely to: cause damage. Water in receiving area is causing or has potential of causing landslide problems. Structure dissipating flow deteriorates to 1/2 or original size or any concentrated worn spot exceeding one square foot which would make structure unsound. See "Catch Basins' Standard No. 5 A -5 Results Expected When Maintenance is Performed. Replace rocks to design standards. Pipe cleaned/ flushed so that it matches design. Trench must be redesigned or rebuilt to standards. Clean or replace perforated pipe. Facility must be rebuilt or redesigned to standards. No danger of landslides. Replace structure to design standards. See 'Catch Basins' Standard No. 5 9/1/98 APPENDIX A MAINTENANCE STANDARDS FOR PRIVATELY MAINTAINED DRAINAGE FACILITIES Maintenance ,:omponent Pipes Open Ditches Catch Basins ebris Barriers e.g., Trash Rack) Maintenance Component General 9/1/98 NO. 10 - CONVEYANCE SYSTEMS (PIPES & DITCHES) Defect Sediment & Debris Vegetation Damaged Trash & Debris Trash and debris exceeds 1 cubic foot per 1,000 square feet of ditch and slopes. Sediment Accumulated sediment that exceeds 20 % of the design depth. Vegetation Vegetation that reduces free movement of water through ditches. Erosion Damage to See 'Ponds' Standard No. 1 Slopes Rock Lining Out of Place or Missing (If Applicable). NO. 11- GROUNDS (LANDSCAPING) Defect Weeds (Nonpoisonous) Safety Hazard Trash or Utter Trees and Shrubs Damaged Conditions When Maintenance is Needed Accumulated sediment that exceeds 20% of the diameter of the pipe. Vegetation that reduces free movement of water through pipes. Protective coating Is damaged; rust is causing more than 50% deterioration to any part of pipe. Any dent that decreases the cross section area of pipe by more than 20 %. Maintenance person can see native soil beneath the rock lining. See 'Catch Basins: Standard No. 5 See 'Debris Barriers' Standard No.6 Conditions When Maintenance Is Needed Weeds growing in more than 20% of the Landscaped area (trees and shrubs only). Any presence of poison ivy or other poisonous vegetation. Paper, cans, bottles, totaling more than 1 cubic foot within a Landscaped area (trees and shrubs only) of 1,000 square feet. Limbs or parts of trees or shrubs that are split or broken which affect more than 25% of the total foliage of the tree or shrub. Trees or shrubs that have been blown down or knocked over. Trees or shrubs which are not adequately supported or are leaning over, causing exposure of the roots. A.6 Results Expected When Maintenance Is Performed Pipe cleaned of all sediment and debris. All vegetation removed so water flows freely through pipes. Pipe repaired or replaced. Pipe repaired or replaced. Trash and debris cleared from ditches. Ditch cleaned/ flushed of all sediment and debris so that It matches design. Water flows freely through ditches. See 'Ponds' Standard No. 1 Replace rocks to design standards. See "Catch Basins' Standard No. 5 See 'Debris Barriers' Standard No. 6 Results Expected When Maintenance is Performed Weeds present in Tess than 5% of the landscaped area. No poisonous vegetation present in landscaped area Area clear of litter. Trees and shrubs with less than 5% of total foliage with split or broken limbs. Tree or shrub in place free of injury. Tree or shrub in place and adequately supported; remove any dead or diseased trees. 1998 Surface Water Design Manual Maintenance :omponent General Road Surface _ and `Ditches NO.12 APPENDIX A MAINTENANCE STANDARDS FOR PRIVATELY MAINTAINED DRAINAGE FACILITIES - ACCESS ROADS/ EASEMENTS Defect Trash and Debris Settlement, Potholes, Mush Spots, Ruts Vegetation in Road Surface 1998 Surface Water Design Manual Condition When Maintenance is Needed Results Expected When Maintenance is Performed Trash and debris exceeds 1 cubic foot per 1,000 square feet i.e., trash and debris would fill up one standards size garbage can. Blocked Roadway Debris which could damage vehicle tires (glass Roadway free of debris which or metal). could damage tires. Any obstruction which reduces clearance above Roadway overhead clear to 14 feet road surface to less than 14 feet high. Any obstruction restricting the access to a 10 to 12 foot width for a distance of more than 12 feet or any point restricting access to less than a 10 foot width. When any surface defect exceeds 6 inches in depth and 6 square feet In area. In general, any surface defect which hinders or prevents maintenance.access. Weeds growing in the road surface that are more than 6 inches tall and less than 6 inches tall and less than 6 inches apart within a 400 - square foot area. Modular Grid Build -up of sediment mildly contaminated with Pavement petroleum hydrocarbons. Erosion Damage Erosion within 1 foot of the roadway more than 8 inches wide and 6 inches deep. Weeds and Brush Weeds and brush exceed 18 inches in height or hinder maintenance access. A -7 Roadway free of debris which could damage tires. Obstruction removed to allow at least a 12 foot access. Road surface uniformly smooth with no evidence of settlement, potholes, mush spots, or ruts. Road surface free of weeds taller than 2 inches. Removal of sediment and disposal in keeping with Health Department recommendations for mildly contaminated soils or catch basin sediments. Shoulder free of erosion and matching the surrounding road. Weeds and brush cut to 2 inches in height or cleared in such a way as to allow maintenance access. 9/1/98 NO. 13 - WATER QUALITY FACILITIES (CONTINUED) 9.) Wetvaults /laintenance Defect Component APPENDIX A MAINTENANCE STANDARDS FOR. PRIVATELY MAINTAINED DRAINAGE FACILITIES Wetvault 9/1/98 Trash/ Debris Accumulation Sediment Accumulation in Vault Damaged Pipes Access Cover Damaged/ Not Working Vault Structure Damaged Baffles Access Ladder Damage Condition When Maintenance Is Needed Trash and debris accumulated in vault, pipe or inlet/ outlet, (includes ftoatables and non- floatables). Sediment accumulation in vault bottom that exceeds the depth of the sediment zone plus 6- inches. Inlet/ outlet piping damaged or broken and in need of repair. Cover cannot be opened or removed, especially by one person. Vault Cracks wider than 1/2 -inch and any evidence of soil particles entering the structure through the cracks, or maintenance/ inspection personnel determines that the vault is not structurally sound. Baffles corroding, cracking, warping and/ or showing signs of failure as determined by maintenance/ inspection staff. Ladder is corroded or deteriorated, not functioning properly, missing rungs, has cracks and! or misaligned. A-8 Results Expected When Maintenance is Performed Trash and debris removed from vault. Removal of sediment from vault. Pipe repaired and/ or replaced. Pipe repaired or replaced to proper working specifications. No cracks wider than 1 /4-inch at the Joint of the inlet/ outlet pipe. Vault is determined to be structurally sound. Repair or replace baffles to specifications. Ladder replaced or repaired to specifications, and is safe to use as determined by inspection personnel. 1998 Surface Water Design Manual APPENDIX B FLOW CONTROL CALCULATIONS 1 ROJECT: FOSTER RIDGE PROJECT LOCATION: (Check One) SOIL TYPE: AREAS: ‘q/B, DETENTION REQUIRED? Existing: 77!1 Forest 0.791 Acres Developed: Tiff Forest Acres Till Pasture Acres 77!1 Pasture Acres Tiff Grass Acres Tiff Grass 0.241 Acres Outwash Forest Acres Outwash Forest Acres Outwash Pasture Acres Outwash Pasture Acres Outwash Grass Acres Outwash Grass Acres Wetland Acres Wetland Acres impervious 0.007 Acres impervious 0.311 Acres Bypass: 7771 Forest Acres Till Pasture Acres Till Gress 0.246 Acres Outwash Forest Acres Outwash Pasture Acres Outwash Grass Acres Wetland Acres Impervious Acres WATER QUALITY TREATMENT: (Circle One) PROJECT INFORMATION / KCRTS HYDROGRAPH INPUT SHEET Volume = 1141 Resource Stream LANDSLIDE HAZARD DRAINAGE AREA: Filenames used: ex.tsf dev.tsf bypass.tsf DATE: 8/8/03 X SEATAC LANDSBURG Scale Factor 1 SCS TYPE: c (Circle One) O Outwash 0.798 TOTAL 0.798 TOTAL CYes) No Time Step: 15- Minute Date Type: Historic (Circle One) ( (Circle One) (Reduced LEVEL OF DETENTION: 0 2 3 (Circle One) Req'd? Yes Type? No Yes Sensitive Lake Additional Key Info: NOTE: Geotechnical Report has identified the site as having a moderate risk for shallow landslides within stratigraphic units 1 and 2 due to the presence of near - surface ground water and the unconsolidated nature of the materials. The site has not been identified by King County as a Landslide Hazard Drainage Area. Flow Frequency Analysis Time Series File:ex.tsf Project Location:Sea -Tac - -- Annual Peak Flow Rates-- - Flow Rate Rank Time of Peak (CFS) 0.051 2 2/09/01 18:00 0.014 7 1/06/02 3:00 0.039 4 2/28/03 3:00 0.002 8 3/24/04 19:00 0.023 6 1/05/05 8:00 0.039 3 1/18/06 20:00 0.034 5 11/24/06 4:00 0.066 1 1/09/08 9:00 Computed Peaks Flow Frequency Analysis - - Peaks - - Rank Return Prob (CFS) 0.066 0.051 0.039 0.039 0.034 0.023 0.014 0.002 0.061 Period 1 100.00 0.990 2 25.00 0.960 3 10.00 0.900 4 5.00 0.800 5 3.00 0.667 6 2.00 0.500 7 1.30 0.231 8 1.10 0.091 50.00 0.980 btw Flow Frequency Analysis Time Series File:dev.tsf Project Location:Sea -Tac - -- Annual Peak Flow Rates - -- Flow Rate Rank Time of Peak (CFS) 0.097 6 2/09/01 2:00 0.0:77 8 1/05/02 16:00 0.117 3 2/27/03 7:00 0.082 7 8/26/04 2:00 0.099 5 10/28/04 16:00 0.103 4 1/18/06 16:00 0.119 2 10/26/06 0:00 0.198 1 1/09/08 6:00 Computed Peaks Flow Frequency Analysis - - Peaks - - Rank Return Prob (CFS) 0.198 0.119 0.117 0.103 0.099 0.097 0.082 0.077 0.172 Period 1 100.00 0.990 2 25.00 0.960 3 10.00 0.900 4 5.00 0.800 5 3.00 0.667 6 2.00 0.500 7 1.30 0.231 8 1.10 0.091 50.00 0.980 Flow Frequency Analysis Time Series File:bypass.tsf Project Location:Sea -Tac - -- Annual Peak Flow Rates-- - Flow Rate Rank Time of Peak (CFS) 0.022 4 0..0.11 7 0.028 2 0.004 8 0.012 6 0.022 3 0.020 5 0.052 1 Computed Peaks 2/09/01 2:00 1/05/02 16:00 2/27/03 7:00 3/24/04 19:00 1/05/05 8:00 1/18/06 16:00 11/24/06 3:00 1/09/08 6:00 Flow Frequency Analysis - - Peaks - - Rank Return Prob (CFS) Period 0.052 1 100.00 0.028 2 25.00 0.022 3 10.00 0.022 4 5.00 0.020 5 3.00 0.012 6 2.00 0.011 7 1.30 0.004 8 1.10 0.044 50.00 0.990 0.960 0.900 0.800 0.667 0.500 0.231 0.091 0.980 Retention/Detention Facility Type of Facility: Detention Vault Facility Length: 56.00 ft Facility Width: 16.00 ft Facility Area: 896. sq. ft Effective Storage Depth: 5.00 ft Stage 0 Elevation: 185.20 ft Storage Volume: 4480. cu. ft Riser Head: 5.00 ft Riser Diameter: 18.00 inches Number of orifices: 1 Full Head Pipe Orifice # Height Diameter Discharge Diameter (ft) (in) (CFS) (in) 1 0.00 0.50 0.015 Top Notch Weir: Rectangular Length: 1.75 in Weir Height: 4.91 ft Outflow Rating Curve: None Stage Elevation Storage Discharge Percolation (ft) (ft) (cu. ft) (ac -ft) (cfs) (cfs) 0.00 185.20 0. 0.000 0.000 0.00 0.01 185.21 9. 0.000 0.001 0.00 0.02 185.22 18. 0.000 0.001 0.00 0.03 185.23 27. 0.001 0.001 0.00 0.04 185.24 36. 0.001 0.001 0.00 0.05 185.25 45. 0.001 0.001 0.00 0.15 185.35 134. 0.003 0.003 0.00 0.25 185.45 224. 0.005 0.003 0.00 0.35 185.55 314. 0.007 0.004 0.00 0.45 185.65 403. 0.009 0.005 0.00 0.55 185.75 493. 0.011 0.005 0.00 0.65 185.85 582. 0.013 0.005 0.00 0.75 185.95 672. 0.015 0.006 0.00 0.85 186.05 762. 0.017 0.006 0.00 0.95 186.15 851. 0.020 0.007 0.00 1.05 186.25 941. 0.022 0.007 0.00 1.15 186.35 1030. 0.024 0.007 0.00 1.25 186.45 1120. 0.026 0.008 0.00 1.35 186.55 1210. 0.028 0.008 0.00 1.45 186.65 1299. 0.030 .0.008 0.00 1.55 186.75 1389. 0.032 0.008 0.00 1.65 186.85 1478. 0.034 0.009 0.00 1.75 186.95 1568 0.036 0.009 0.00 1.85 187.05 1658. 0.038 0.009 0.00 1.95 187...15 1747. 0.040 0.009 0.00 2.05 187.25 1837. 0.042 0.010 0.00 2.15 187.35 1926. 0.044 0.010 0.00 2.25 187.45 2016. 0.046 0.010 0.00 2.35 187.55 2106. 0.048 0.010 0.00 2.45 187.65 2195. 0.050 0.011 0.00 2.55 187.75 2285. 0.052 0.011 0.00 2.65 187.85 2374. 0.055 0.011 0.00 2.75 187.95 2464. 0.057 0.011 0.00 2.85 188.05 2554. 0.059 0.011 0.00 2.95 188.15 2643. 0.061 0.012 0.00 3,05 188.25 2733. 0.063 0.012 0.00 3.15 188.35 2822. 0.065 0.012 0.00 3.25 188.45.. 2912. 0.067 0.012 0.00 3.35 188.55 3002. 0.069 0.012 0.00 3.45 188.65 3091. 0.071 0.013 0.00 3.55 188.75 3181. 0.073 0.013 0.00 3.65 188.85 3270. 0.075 0.013 0.00 3.75 188.95 3360. 0.077 0.013 0.00 3.85 189.05 3450. 0.079 0.013 0.00 3.95 189.15 3539. 0.081 0.013 0.00 4.05 189.25 3629. 0.083 0.014 0.00 4.15 189.35 3718. 0.085 0.014 0.00 4.25 189.45 3808. 0.087 0.014 0.00 4.35 189.55 3898. 0.089 0.014 0.00 4.45 189.65 3987. 0.092 0.014 0.00 4.55 189.75 4077. 0.094 0.014 0.00 4.65 189.85 4166. 0.096 0.015 0.00 4.75 189.95 4256. 0.098 0.015 0.00 4.85 190.05 4346. 0.100 0.015 0.00 4.91 190.11 4399. 0.101 0.015. 0.00 4.92 190.12 4408. 0.101 0.016 0.00 4.93 190.13 4417. 0.101 0.017 0.00 4.94 190.14 4426. 0.102 0.018 0.00 4.96 190.16 4444. 0.102 0.019 0.00 4.97 190.17 4453. 0.102 0.021 0.00 4.98 190.18 4462. 0.102 0.023 0.00 4.99 190.19 4471. 0.103 0.025 0.00 5.00 190.20 4480. 0.103 0.026 0.00 5.10 190.30 4570. 0.105 0.489 0.00 5.20 190.40 4659. 0.107 1.330 0.00 5.30 190.50 4749. 0.109 2.430 0.00 5.40 190.60 4838. 0.111 3.720 0.00 5.50 190.70 4928. 0.113 5.190 0.00 5.60 190.80 5018. 0.115 6.620 0.00 5.70 190.90 5107. 0.117 7.150 0.00 5.80 191.00 5197. 0.119 7.640 0.00 5.90 191.10 5286. 0.121 8.100 0.00 6.00 191.20 5376. 0.123 8.540 0.00 6.10 191.30 5466. 0.125 8.950 0.00 6.20 191.40 5555. 0.128 9.350 0.00 6.30 191.50 5645. 0.130 9.730 0.00 6.40 191.60 5734. 0.132 10.100 0.00 6.50 191.70 5824. 0.134 10.450 0.00 6.60 191.80 5914. 0.136 10.790 0.00 6.70 191.90 6003. 0.138 11.120 0.00 6.80 192.00 6093. 0.140 11.450 0.00 6.90 192.10 6182. 0.142 11.760 0.00 7.00 192.20 6272. 0.144 12.060 0.00 Hyd Inflow Outflow Peak Storage Stage Elev (Cu -Ft) (Ac -Ft) 1 0.20 0.18 5.03 190.23 4510. 0.104 2 0.10 0.08 5.01 190.21 4490. 0.103 3 0.12 4 0.12 5 0.10 6 0.10 7 0.08 8 0.08 Hyd R/D Facility Tributary Reservoir Outflow Inflow Inflow 1 0.18 0.05 2 3 4 5 6 7 8 0.08 0.02 0.01 0.01 0.01 0.01 0.01 0.02 0.01 0.01 0.01 0.01 0.01 0.02 0.02 0.03 0.02 0.01 0.01 0.00 Route Time Series through Facility Inflow Time Series File:dev.tsf Outflow Time Series File:rdout POC Time Series File:dsout - -- Annual Peak Flow Rates-- - Flow Rate Rank Time of Peak (CFS) 0.076 0.011 0.015 0.009 0.012 0.014 0.024 0.179 2 2/09/01 15:00 7 12/28/01 18:00 4 2/28/03 21:00 8 8/26/04 6:00 6 1/05/05 17:00 5 1/19/06 2:00 3 11/24/06 8:00 1 1/09/08 8:00 Computed Peaks Flow Frequency Analysis Time Series File:dsout.tsf Project Location:Sea -Tac - -- Annual Peak Flow Rates-- - Flow Rate Rank Time of Peak 4.99 190.19 4.62 189.82 4.43 189.63 3.18 188.38 2.41 187.61 1.76 186.96 POC Outflow Target Calc * * * * * ** 0.04 * * * * * ** * * * * * ** 0.02 * * * * * ** * * * * * ** 4467. 4141. 3969. 2853. 2156. 1581. 0.22 0.10 0.04 0.04 0.03 0.02 0.02 0.01 0.103 0.095 0.091 0.065 0.049 0.036 Inflow /Outflow Analysis Peak Inflow Discharge: 0.198 CFS at 6:00 on Jan 9 in Year 8 Peak Outflow Discharge: 0.179 CFS at 8:00 on Jan 9 in Year 8 Peak Reservoir Stage: 5.03 Ft Peak Reservoir Elev: 190.23 Ft Peak Reservoir Storage: 4510. Cu -Ft 0.104 Ac -Ft Add Time Series:bypass.tsf Peak Summed Discharge: 0.222 CFS at 8:00 on Jan 9 in Year 8 Point of Compliance File:dsout.tsf Flow Frequency Analysis Time Series File:rdout.tsf Project Location:Sea -Tac Flow Frequency Analysis - - Peaks - - Rank Return Prob (CFS) (ft) Period 0.179 5.03 1 100.00 0.990 0.076 5.01 2 25.00 0.960 0.024 4.99 3 10.00 0.900 0.015 4.62 4 5.00 0.800 0.014 4.43 5 3.00 0.667 0.012 3.18 6 2.00 0.500 0.011 2.41 7 1.30 0.231 0.009 1.76 8 1.10 0.091 0.145 5.03 50.00 0.980 Flow Frequency Analysis - - Peaks - - Rank Return Prob (CFS) 0.097 0.018 0.038 0..012 0.023 0.034 0.038 0.222 Computed Peaks 2 2/09/01 15:00 7 1/05/02 16:00 4 2/28/03 3:00 8 8/26/04 2:00 6 1/05/05 8:00 5 1/18/06 16:00 3 11/24/06 8:00 1 1/09/08 8:00 (CFS) Period 0.222 1 100.00 0.990 0.097 2 25.00 0.960 0.038 3 10.00 0.900 0.038 4 5.00 0.800 0.034 5 3.00 0.667 0.023 6 2.00 0.500 0.018 7 1.30 0.231 0.012 8 1.10 0.091 0.180 50.00 0.980 APPENDIX C WATER QUALITY CALCULATIONS 13,547 sf (Area Impervious) 10,498 sf (Area of till grass) 0 sf (Area of till forest) 0 sf (Area of outwash grass or forest) Water Quality Calculations - Wetvault Volume Per '98 KCSWDM Foster Ridge 6 -Lot B.L.A. PACE Job # 98673.01 Step 1: Identify required wetpool volume factor (f). f = 3 (value for basic wetpond is 3) Step 2: Determine rainfall (R) for the mean annual storm. R = 0.47 " (from Figure 6.4.1A KCSWDM) Step 3: Calculate runoff from the mean annual storm (Vr) for the developed site> Vr = (0.9Ai + 0.25tg + 0.10tf + 0.01 Ao) * R/12 Ai = tg = tf= Ao = Vr = (0.9 * 13,547 + 0.25 * 10,193) * 0.47/12 Vr = 580.3 cf Step 4: Calculate wetpool volume (Vb). Vb = f *Vr Vb= 1,741.0cf APPENDIX D WETLAND HYDROLOGY Dick Pedersen — Foster Ridge 6 -Lot B.L.A. July 2003 — Wetland Hydrology Page 1 WETLAND HYDROLOGY Table 1. Existing Condition Land Use for Basin Contributing to Wetland Land Use Area (sf) Area (acres) Till Forest 35,682.64 0.819 Till Grass 96,629.45 2.149 Wetland 11,347.62 0.261 Impervious 16,770.52 0.385 Total 160,608.88 3.61 A flow frequency analysis was conducted for the basin draining to the onsite wetland for pre and post - development conditions. This analysis was done to insure that the wetland will continue to receive hydrologic support after completion of the Foster Ridge Six -Lot Boundary Line Adjustment. Existing Basin Conditions Under existing conditions the onsite wetland receives flows from the forested area onsite and adjacent to the wetland on the southwest side, as well as from the residential plat southwest of the proposed Six -Lot Boundary Line Adjustment. In addition, a small portion of the playfield area behind the backstop at Showalter Middle School also drains to the wetland. The main portion of the playfield is collected in a shallow swale and diverted to the east, bypassing the wetland. See Existing Wetland Hydrology Map for boundaries of these contributing areas. The following table gives existing condition land cover for the contributory areas: Developed Basin Conditions Under post - development conditions the onsite wetland will continue to receive flows from the upstream residential plat to the southwest. Runoff from the onsite development will be detained and released to the existing storm drainage system at Macadam Road. Much of the yard areas for lots 4, 5, 6, and a small portion of lot 3 will continue to drain to the wetland. The following table shows the post - development condition land cover for the contributory area to the onsite wetland: Table 2. Post - Development Condition Land Use for Basin Contributing to Wetland "A" Land Use Area (sf) Area (acres) Till Forest 24,164 0.555 Till Grass 97,460 2.237 Wetland 11,348 0.261 Impervious 16,622 0.382 Total 149,594 3.43 Dick Pedersen — Foster Ridge 6 -Lot B.L.A. July 2003 — Wetland Hydrology Page 2 Flow Frequency Analysis The following table shows the pre - development and post - development flow frequency analysis for the basin contributing to the onsite wetland. KCRTS was used with an hourly timestep and a full historic record. Table 3. Flow Frequency Analysis — Wetland "A" Return Period (YEARS) Existing Peak (CFS) Developed Peak (CFS) 100 0.739 0.738 50 0.644 0.644 25 0.555 0.555 10 0.445 0.445 8 0.424 0.423 5 0.365 0.365 2 0.256 0.256 1.3 0.192 0.192 As can be seen in the above table, post - development flows routed to the onsite wetland are nearly identical to pre- development flows received by the wetland, even though the post - development basin contributing to the wetland is smaller than the pre- development basin. This is mainly due to the fact that a portion of forest cover was converted to grass, which has a higher runoff potential. Volume Analysis A volume analysis was performed for the 2 -, 10 -, 25 -, and 100 -year storm events. KCRTS was used with an hourly timestep and a reduced record. The reduced record was used because the full historic record does not give stonn event dates that correspond to return periods. The reduced record gives a date for a given storm event, allowing the user to extract a hydrograph for a specific time period and also to compute the volume of runoff. A 16 -hour window was chosen for storm events, 8 hours on either side of the peak. This window was chosen because some storms in the reduced record are followed immediately by another storm event and a longer window would have given volumes that included a significant portion of the next storm event. The following table gives runoff volumes to the wetland for existing and post - development conditions. Table 4. Volume Analysis — Wetland "A" Return Period (YEARS) Existing Volume Developed Volume (CF) (CF) 100 17,150 16,861 25 9,533 9,357 10 12,238 11,978 2 4,121 4,057 Dick Pedersen — Foster Ridge 6 -Lot B.L.A. July 2003 — Wetland Hydrology Page 3 In all cases the post - development volume is slightly less than the existing condition volume. This is due to the reduction in basin size under post development conditions. It should also be noted that the 10 -year volumes are larger than the 25 -year volumes. This is because in using the reduced record hydrograph an additional storm immediately follows the 10 -year storm event. Existing condition hydrographs are included to illustrate this condition. The reduced record flow frequency analysis, and the volume computations are also included for reference. Flow Frequency Analysis Time Series File:offex.tsf Project Location:Sea -Tac = -- Annual Flow Rate (CFS) 0.354 0.198 0.425 0.136 0.192 0.333 0.303 0.713 Computed Peak Flow Rates - -- Rank Time of 3 6 2 8 7 4 5 1 Peaks Peak 2/09/01 2:00 1/05/02 16:00 2/27/03 7 :00 8/26/04 2:00 1/05/05 8:00 1/18/06 16:00 11/24/06 3:00 1/09/08 6:00 Flow Frequency Analysis Time Series File:offdev.tsf Project Location:Sea -Tac - -- Annual Peak Flow Rates-- - Flow Rate Rank Time of Peak (CFS) 0.351 0.197 0.423 0.137 0.188 0.329 0.300 0.711 Computed Peaks 3 2/09/01 2:00 6 1/05/02 16:00 2 2/27/03 7:00 8 8/26/04 2:00 7 1/05/05 8:00 4 1/18/06 16:00 5 11/24/06 3:00 1 1/09/08 6:00 Flow Frequency Analysis - - Peaks (CFS) 0.713 0.425 0.354 0.333 0.303 0.198 0.192 0.136 0.617 Rank Return Prob Period 1 100.00 0.990 2 25.00 0.960 3 10.00 0.900 4 5.00 0.800 5 3.00 0.667 6 2.00 0.500 7 1.30 0.231 8 1.10 0.091 50.00 0.980 Flow Frequency Analysis Peaks - - Rank Return Prob (CFS) Period 0.711 1 100.00 0.990 0.423 2 25.00 0.960 0.351 3 10.00 0.900 0.329 4 5.00 0.800 0.300 • 5 3.00 0.667 0.197 6 2.00 0.500 0.188 7 1.30 0.231 0.137 8 1.10 0.091 0.615 50.00 0.980 2 -YEAR EXISTING CONDITION HYDROGRAPH 0 a a 0 0 0.00 3.00 6.00 ►aur offex.tsf • Start Dote:01 /05/02 08 :0O End Dote:01 /0/02 23:59 9.00 • 12.00 15.00 18.4 10 -YEAR EXISTING CONDITION HYDROGRAPH r • 0 a a 0.00 cffex.tsf Start Date:02 /08 /01 18:00 End Date:02 /09/01 09:59 1 I 1 3.130 8. 00 4. 0o . 12.00 15.00 18.0 1 Hour 25 -YEAR EXISTING CONDITION HYDROGRAPH 0 d 0 L o u. a, 1 a 0 L u 0 a q 0 0.00 offex.tsf Start DOte:02/26/O3 23:00 End Date:O2/27/O3 14 :54 3.00 8.0O 9.00 . 12.00 15.00 18.4 Hour 100 -YEAR EXISTING CONDITION HYDROGRAPE d 0 0 0.00 3.00 8.00 Hour offex.tsf Start Date:01 /08/08 22:00 End Date:01 /04!46 13:84 9.00 . 12.00 15.00 18.0 2 -YEAR VOLUMES: Discharge Volume from Time Series offex.tsf between 01/05/02 08:00 and 01/05/02 23:59 4121. Cu -Ft or 0.095 Ac -Ft in 0.7 days Discharge Volume from Time Series offdev.tsf between 01/05/02 08:00 and 01/05/02 23:59 4057. Cu -Ft or 0.093 Ac -Ft in 0.7 days 10 - YEAR VOLES: Discharge Volume from Time Series offex.tsf between 02/08/01 18:00 and 02/09/01 09:59 12238. Cu -Ft or 0.281 Ac -Ft in 0.7 days Discharge Volume from Time Series offdev.tsf between 02/08/01 18:00 and 02/09/01 09:59 11978. Cu -Ft or 0.275 Ac -Ft in 0.7 days 25 - YEAR VOLES: Discharge Volume from Time Series offex.tsf between 02/26/03 23:00 and 02/27/03 14:59 9533. Cu -Ft or 0.219 Ac -Ft in 0.7 days Discharge Volume from Time Series offdev.tsf between 02/26/03 23:00. and 02/27/03 14:59 9357. Cu -Ft or 0.215 Ac -Ft in 0.7 days 100 - YEAR VOLUMES : Discharge Volume from Time Series offex.tsf between 01/08/08 22:00 and 01/09/08 13:59 17150. Cu -Ft or 0.394 Ac -Ft in 0.7 days Discharge Volume from Time Series offdev.tsf between 01/08/08 22:00 and 01/09/08 13:59 16861. Cu -Ft or 0.387 Ac -Ft in 0.7 days Foster Ridge Six -Lot Boundary Line Adjustment .I' Wetland Hydrology" Pace Job No. 98673.01 Date: - 29- JuI-03 Existing Area: Land Cover Analysis (For Areas Contributing to Hydrology of Wetland) Area A: Residential Area 2.43 Acres Density: 2 DU /GA % Impervious: 25% (see table 3.2.2.D) EIF: 0.55 (see table 3.2.2.E) Area: 106,012.32 SF Area B: Gravel/Bare Ground Area Behind Backstop 0.10 Acres EIF: 0.50 (see table 3.2.2.E) Area: 4,387.65 SF EIA: 2,193.83 SF (Effective Impervious Area = Area * EIF) Till Grass: 2,193.83 SF (1111 Grass = Area - EIA) Onsite Area 1111 Forest: 35,682.64 SF Area_D: Wetland Area 0.26 Acres Wetland: 11,347.62.SF Area_C: 0.82 Acres EIA: 14,576.69 SF (Effective Impervious Area = Area * % Imp. * EIF) 1111 Grass: 91,435.63 SF (Till Grass = Area- ElA) Composite Areas: SF ACRES Till Forest 35,682.64 0.819 Till Grass 93,629.45 2.149 Wetland 11,347.62 0.261 Impervious 16,770.52 0.385 Total: 157,430.23 3.614 ""' "Wetland Hydrology" Pace Job No. 98673.01 Date: 29-Jul -03 Area_C: 0.66 Acres Foster Ridge Six -Lot Boundary Line Adjustment Developed Area: Land Cover Analysis (For Areas Contributing to Hydrology of Wetland) Area A: Residential Area 2.43 Acres Density: 2 DU /GA % Impervious: 25% (see table 3.2.2.D) EIF: 0.55 (see table 3.2.2.E) Area: 104,932.00 SF EIA: 14,428.15 SF (Effective Impervious Area = Area * % Imp. * EIF) Till Grass: 90,503.85 SF (Till Grass = Area - EIA) Area_B: Gravel/Bare Ground Area Behind Backstop 0.10 Acres EIF: 0.50 (see table 3.2.2.E) Area: 4,387.65 SF EIA: Till Grass: Onsite Area Till Forest Till Grass: Area_D: Wetland Area 0.26 Acres Wetland: Composite Areas: SF ACRES Till Forest 24,163.66 0.555 Till Grass 97,460.23 2.237 Wetland 11,347.62 0.261 Impervious 16,621.98 0.382 Total: 149,593.48 3.434 2,193.83 SF (Effective Impervious Area = Area * EIF) 2,193.83 SF (Till Grass = Area - EIA) 24,163.66 SF 4,762.55 SF 11,347.62 SF NOTE: Total area contributing to wetland is Tess under developed conditions because some of the onsite area will be detained and no longer released to the wetland. Foster Ridge Six -Lot Boundary Line Adjustment " "Dispersal Trench Sizing" Pace Job No. 98673.01 Date: 29 -Jul -03 Developed Area: Land Cover Analysis (For Areas Tributary to Dispersal Trench) Area A: Area_B: Area_C: Composite Areas: SF ACRES Till Forest 4,460.00 0.102 Till Grass 69,412.49 1.593 Impervious 12,575.39 0.289 Total: 86,447.88 1.985 Sizing Notes: Residential Area Density: 2 DU /GA % Impervious: 25% (see table 3.2.2.D) EIF: 0.55 (see table 3.2.2.E) Area: 78,396.00 SF EIA: 10,779.45 SF (Effective Impervious Area = Area * % Imp. * EIF) Till Grass: 67,616.55 SF (1111 Grass = Area - EIA) Gravel/Bare Ground Area Behind Backstop EIF: 0.50 (see table 3.2.2.E) Area: 3,591.88 SF EIA: 1111 Grass: Right of Way Area Till Forest 4,460.00 SF Max flow to 50' trench is 0.5 cfs. Q100• LREQ I-PROVIDED = 1,795.94 SF (Effective Impervious Area = Area * EIF) 1,795.94 SF (Till Grass = Area - EIA) 0.5 0.481 cfs 50 * 0.481 LREQ = 48.1 ft 50 ft Flow Frequency Analysis Time Series File:exhyd.tsf Project Location:Sea -Tac - -- Annual Peak Flow Rates-- - Flow Rate Rank Time of Peak (CFS) 0.307 15 2/16/49 0.689 1 3/03/50 0.377 9 2/09/51 0.208 38 1/30/52 0.179 42 3/24/53 0.264 23 12/19/53 0.307 16 2/07/55 0.310 14 12/20/55 0.345 12 12/09/56 0.245 27 12/25/57 0.194 41 1/26/59 0.306 17 11/20/59 0.240 28 2/14/61 0.173 43 11/22/61 0.239 29 12/15/62 0.255 25 12/31/63 0.205 39 12/21/64 0.230 31 1/05/66 0.347 11 1/19/67 0.300 19 8/24/68 0.224 35 12/03/68 0.236 30 1/13/70 0.223 36 12/06/70 0.466 5 2/27/72 0.205 40 1/13/73 0.252 26 11/28/73 0.380 8 12/26/74 0.229 32 12/02/75 0.151 45 8/26/77 0.266 22 9/22/78 0.157 44 9/08/79 0.306 18 12/14/79 0.266 21 11/21/80 0.473 4 10/06/81 0.225 34 10/28/82 0.259 24 3/15/84 0.145 47 6/06/85 0.386 7 1/18/86 0.320 13 11/24/86 0.138 49 1/14/88 0.139 48 11/05/88 0.686 2 1/09/90 0.594 3 11/24/90 0.225 33 1/27/92 0.148 46 3/22/93 0.107 50 11/30/93 0.210 37 2/18/95 0.457 6 2/08/96 0.349 10 1/02/97 0.291 20 10/04/97 Computed Peaks Computed Peaks Computed Peaks Computed Peaks Computed Peaks Computed Peaks Computed Peaks Computed Peaks 21:00 16:00 2:00 8:00 15:00 19:00 17:00 17:00 14:00 16:00 20:00 21:00 21:00 2:00 2:00 23:00 4:00 16:00 14:00 16:00 16:00 22:00 8:00 7:00 2:00 9:00 23:00 20:00 2:00 19:00 15:00 21:00 11:00 15:00 16:00 20:00 22:00 16:00 3:00 12:00 14:00 6:00 8:00 15:00 22:00 22:00 20:00 10:00 6:00 15:00 LogPearson III Coefficients Mean= -0. -582 StdDev= 0.176 Skew= 0.328 Flow Frequency Analysis - - Peaks (CFS) 0.689 0.686 0.594 0.473 0.466 0.457 0.386 0.380 0.377 0.349 0.347 0.345 0.320 0.310 0.307 0.307 0.306 0.306 0.300 0.291 0.266 0.266 0.264 0.259 0.255 0.252 0.245 0.240 0.239 0.236 0.230 0.229 0.225 0.225 0.224 0.223 0.210 0.208 0.205 0.205 0.194 0.179 0.173 0.157 0.151 0.148 0.145 0.139 0.138 0.107 0.739 0.644 0.555 0.445 0.424 0.365 0.256 0.192 - - Rank Return Prob Period 1 89.50 2 32.13 3 19.58 4 14.08 5 10.99 6 9.01 7 7.64 8 6.63 9 5.86 10 5.24 11 4.75 12 4.34 13 3.99 14 3.70 15 3.44 16 3.22 17 3.03 18 2.85 19 2.70 20 2.56 21 2.44 22 2.32 23 2.22 24 2.13 25 2.04 26 1.96 27 1.89 28 1.82 29 1.75 30 1.70 31 1.64 32 1.59 33 1.54 34 1.49 35 1.45 36 1.41 37 1.37 38 1.33 39 1.30 40 1.27 41 1.24 42 1.21 43 1.18 44 1.15 45 1.12 46 1.10 47 1.08 48 1.05 49 1.03 50 1.01 100.00 50.00 25.00 10.00 8.00 5.00 2.00 1.30 0.989 0.969 0.949 0.929 0.909 0.889 0.869 0.849 0.829 0.809 0.789 0.769 0.749 0.729 0.709 0.690 0.670 0.650 0.630 0.610 0.590 0.570 0.550 0.530 0.510 0.490 0.470 0.450 0.430 0.410 0.390 0.370 0.350 0.330 0.310 0.291 0.271 0.251 0.231 0.211 0.191 0.171 0.151 0.131 0.111 0.091 0.071 0.051 0.031 0.011 0.990 0.980 0.960 0.900 0.875 0.800 0.500 0.231 Flow Frequency Analysis Time Series File:devhyd.tsf Project Location:Sea -Tac 16 1 9 38 42 23 18 15 11 27 41 19 28 43 29 26 39 31 12 17 36 30 35 5 40 25 8 33 45 21 44 14 22 4 32 24 46 7 13 49 48 2 3 34 47 50 37 6 10 0.297 20 Computed Peaks Computed Peaks Computed Peaks Computed Peaks Computed Peaks Computed Peaks Computed Peaks Computed Peaks - -- Annual Peak Flow Rates-- - Flow Rate Rank Time of Peak (CFS) 0.305 0.692 0.375 0.207 0.180 0.264 0.304 0.308 0.345 0.247 0.194 0.301 0.240 0.176 0.239 0.254 0.206 0.229 0.343 0.305 0.223 0.237 0.223 0.466 0.204 0.255 0.380 0.228 0.152 0.271 0.157 0.308 0.271 0.476 0.228 0.261 0.147 0.382 0.317 0.137 0.141 0.686 0.594 0.226 0.146 0.107 0.207 0.452 0.348 2/16/49 21:00 3/03/50 16:00 2/09/51 2:00 1/30/52 8:00 3/24/53 15:00 12/19/53 19:00 2/07/55 17:00 12/20/55 17:00 12/09/56 14:00 12/25/57 16:00 1/26/59 20:00 11/20/59 21:00 2/14/61 21:00 11/22/61 2:00 12/15/62 2:00 12/31/63 23:00 12/21/64 4:00 1/05/66 16:00 1/19/67 14:00 8/24/68 16:00 12/03/68 16:00 1/13/70 22:00 12/06/70 8:00 2/27/72 7:00 1/13/73 2:00 11/28/73 9:00 12/26/74 23:00 12/02/75 20:00 8/26/77 2:00 9/22/78 19:00 9/08/79 15:00 12/14/79 21:00 11/21/80 11:00 10/06/81 15:00 10/28/82 16:00 3/15/84 20:00 6/06/85 22:00 1/18/86 16:00 11/24/86 3:00 1/14/88 12:00 11/05/88 14:00 1/09/90 6:00 11/24/90 8:00 1/27/92 15:00 3/22/93 22:00 11/30/93 22:00 2/18/95 20:00 2/08/96 10:00 1/02/97 6:00 10/04/97 15:00 LogPearson III Coefficients Mean= -0.582 StdDev= 0.175 Skew= 0.332 Flow Frequency Analysis - - Peaks - - Rank Return Prob (CFS) Period 0.692 1 89.50 0.686 2 32.13 0.594 3 19.58 0.476 4 14.08 0.466 5 10.99 0.452 6 9.01 0.382 7 7.64 0.380 8 6.63 0.375 9 5.86 0.348 10 5.24 0.345 11 4.75 0.343 12 4.34 0.317 13 3.99 0.308 14 3.70 0.308 15 3.44 0.305 16 3.22 0.305 17 3.03 0.304 18 2.85 0.301 19 2.70 0.297 20 2.56 0.271 21 2.44 0.271 22 2.32 0.264 23 2.22 0.261 24 2.13 0.255 25 2.04 0.254 26 1.96 0.247 27 1.89 0.240 28 1.82 0.239 29 1.75 0.237 30 1.70 0.229 31 1.64 0.228 32 1.59 0.228 33 1.54 0.226 34 1.49 0.223 35 1.45 0.223 36 1.41 0.207 37 1.37 0.207 38 1.33 0.206 39 1.30 0.204 40 1.27 0.194 41 1.24 0.180 42 1.21 0.176 43 1.18 0.157 44 1.15 0.152 45 1.12 0.147 46 1.10 0.146 47 1.08 0.141 48 1.05 0.137 49 1.03 0.107 50 1.01 0.738 100.00 0.644 50.00 0.555 25.00 0.445 10.00 0.423 8.00 0.365 5.00 0.256 2.00 0.192 1.30 0.989 0.969 0.949 0.929 0.909 0.889 0.869 0.849 0.829 0.809 0.789 0.769 0.749 0.729 0.709 0.690 0.670 0.650 0.630 0.610 0.590 0.570 0.550 0.530 0.510 0.490 0.470 0.450 0.430 0.410 0.390 0.370 0.350 0.330 0.310 0.291 0.271 0.251 0.231 0.211 0.191 0.171 0.151 0.131 0.111 0.091 0.071 0.051 0.031- 0.011 0.990 0.980 0.960 0.900 0.875 0.800 0.500 0.231 Flow Frequency Analysis Time Series File:trenchrv.tsf Project Location:Sea -Tac - -- Annual Peak Flow Rates-- - Flow Rate Rank Time of Peak (CFS) 0.216 4 2/09/01 2:00 0.136 6 1/05/02 16:00 0.268 2 2/27/03 7:00 0.101 8 8/26/04 2:00 0.133 7 10/28/04 16:00 0.225 3 1/18/06 16:00 0.207 5 11/24/06 3:00 0.481 1 1/09/08 6:00 Computed Peaks Flow Frequency Analysis - - Peaks - - Rank Return Prob (CFS) Period 0.481 0.268 0.225 0.216 0.207 0.136 0.133 0.101 0.410 1 100.00 0.990 2 25.00 0.960 3 10.00 0.900 4 5.00 0.800 5 3.00 0.667 6 2.00 0.500 7 1.30 0.231 8 1.10 0.091 50.00 0.980 C C C 4 s 9 245 26s. 240 4502 4524 9 0 LEGEND: AREA_A: 2.43 ACRES RESIDENTIAL AREA_D: 0.26 ACRES WETLAND AREA_B: 0.10 ACRES GRAVEL /BARE GROUND ? D °Q A AREA_C: 0.82 ACRES ONSITE /RIGHT —OF —WAY o CaII before you 1- 800 - 424 -5555 IMFRM0110 SERVICE (USA) DEWED ALB 088551 ALB CEEO(ED PDC SDA REU91N DAIS BY APPD Engineering Planning Surveying Penhallegon Associates Consulting Engineers, Inc. 150 A+M a Street Snd Kirkland. MA 98013 ... poceergracem PH- ( -125) 8 0 - 21 -201-1 1- 809:15 -e W ` e A%: WS) 827-50-3 KkAA.d • Seattle . Federal Mfr . Portland R.S. PEDERSON P.O. BOX 1518 MARYSVILLE, WA 98270 REFERENCE MFORYA1Th FIELD BOOK 5118Y. CPU FIE: DAIUY: DATE JULY 2003 SCALE N.T.S. FOSTER RIDGE 6 -LOT B.L.A. EXISTING CONDITION WETLAND HYDROLOGY MAP JOB NUMBER 98673.01 DWG NDOF SIIE_EX.e.g 91St OF c 04 04 8 9 LEGEND: AREA_A: 2.41 AREA_B: 0.10 kPZ AREA_C: 0.66 AREA_D: 0.26 ACRES RESIDENTIAL ACRES GRAVEL/BARE GROUND ACRES ONSITE/RIGHT—OF—WAY ACRES WETLAND Call before you DM. 1-800-424-5555 5SXRCR01.110 SEIMCE (USA) DEEM ALB DRAWN 55 01E00 PDC FUSION DAZE BY OP)' Engineering Planning Surveying Penhallegon Associates Consulting Engineers, Inc. 7. Sleth Street Sou. Mr... WA 9810.73 true pAceengrAcow P0: (425) 827-2014 1-800-945-8408 Pelt (425) 827-5043 Kirtland . 580f4 Fadwal Way . Partfand R.S. PEDERSON P.O. BOX 1518 MARYSVILLE, WA 98270 REFERENCE INFORMADZW MD BOCK SINN. CPU FILE: DADA DAIS JULY 2003 SCALE N.T.S. FOSTER RIDGE 8-LOT B.L.A. DEVELOPED CONDITION WETLAND HYDROLOGY MAP JOB NUMBER 98873.01 DWG NO.OFFSIE_DEV.tleg SIfET OF m 245 240 ?6 s � \ \ \\\`` , . `\` h \� \ \ \ \‘ • 5\5\ ``n>\ � \\ \ ■■■,1 4502 4524 • 1 \\ 1 1 J•• \' \ � A ' \ I \ 1 \ \\\ 3 \ \ \\ \ \ 1 \ `��� ■ �\ \ \\\ \ \ I \\ \ •\ \ \ \1110' \ \ \ \111 \111 111 \\ 1 - e ^ \ \ \ \ 111 UII 4 \ — -- cr \ 5 \ 01 \ \ \t\ \ _ // ; °® `�\ \ \ I i \�\ \11 1 9 � ,� \ \\ \ 1 1 Ib1 1 ` ` \1\ \\\ \\\ \ \ \. :wane .e o i 1 11 ' ` • I 1 —= � \0 \ \ \ ` \ -- ,\ \ �\ \ \ \ 1 \\\''`9\\11 " 1 )1; 0 0° ` / /� / �' 9 \ \ \` 11 11 1 j11 1 1 �j111 1 11\�s \11 \\1 - (1 1\ 1 111 1 j 1 1 \ , ``.. _- • LEGEND: AREA_A: j1.80 ACRES RESIDENTIAL AREA_B: 0.08 ACRES GRAVEL /BARE GROUND AREA_C: 0.10 ACRES RIGHT -OF -WAY Call before you 1- 800 - 424 -5555 tic noo o 8OP4E DAN) DECIDED ALB ORANN ALB DECKED PDC sw DATE BY AFPD Engineering Planning Surveying Penhallegon Associates Consulting Engineers, Inc. 750 Si.. SNeel Sou. KeMmq WA 98033 . 821 -504 P. (425) 827 -2014 1- 800 - 945 -8408 FAIL: : (425) (425) 827 -5043 Kirkland • Seattle . FWderld WWI • P.... R.S. PEDERSON P.O. BOX 1518 MARYSVILLE, WA 98270 REFERENCE INFORNAFNn FLIO BOOK: SOK CPO FILL DAIUN: DALE JULY 2003 SCALE N.T.S. FOSTER RIDGE SIX LOT' BOUNDARY LINE ADJUSTMENT DISPERSAL TRENCH TRIBUTARY AREA JOB MAWR 98673.01 DAC NoOFF91E_DEV.d.g 8881 OF APPENDIX E BOND QUANTITY WORKSHEET AND FACILITY SUMMARY King County Department of Development 8 Environmental Services 900 Oakesdale Avenue Southwest Renton, Washington 98055 -1219 Page 1 of 9 Project Name: Location: bond_quantity worksheet Revised.XLS Site Improvement Bob a Quantity Worksheet FOSTER RIDGE 6 -LOT B.L.A. TUKWILA, WASHINGTON Clearing greater than or equal to 5,000 board feet of timber? yes x no If yes, Forest Practice Permit Number. (RCW 76.09) Date: Protect No.: Activity No.: 31-Jul-03 Note: All prices include labor, equipment, materials, overhead and profit. Prices are from RS Means data adjusted for the Seattle area or from local sources if not included in the RS Means database. Unit prices updated: 02/12/02 Version: 04/22/02 Report Date: 9/18/03 •. +,,..:.v..,..v..v... v:...vv,•.,•n•.vv.. ::.,.n. •rv. .,..,..,.. .....,.. •,,xvv: . v v: \n:J'J;J;•:,iiii'J: +W \ '. v .� .. n} \�.. t..A 'i �tiK ..ti' • 'J \• v. {? ,t .. , . tti�;J - '�. ' • .' V. . 4... ai v,•^v ' 'k , ' 4 N ` .JQM, \ . V v. '0. �Tt: to � § • %` �', 1, # �� �� '�'�}} � �� £!_. ___ _ • _ " :• :.' .�`•••: •:`. Backfill & compaction - embankment . :.. :n,• :•:.v. .::.vv.,..,..,•, :v . �. ..... ate , £vv .v .£4 . N,1 .'\.. i • 4`n. t ,. • :��" +'': \ 'ttttiJ2 , \. , .... x-i �"„\; \'.•,..„, . t fi t:: `:Y i.: j ;,•: } ' + :� .:: , '\ :'^ . $ 5.62 + ri•' 0. ^:'• :i::A\•�i .;:' Tv . _ i� •\ �.,�' - vow : :.. • .:.,. Y. CY \iii:,:�:i ^: \i•:4.J•ivw•. :. }� M1 v ,� tiT{ te. e � E `�`�.• ,2 +' .� .,� . , .: ifi .�v, 4 : v }'•y v4 .v v;,v:..' .. t . a..... +1C+ ':'.y: r: is :•: ; : s �.•� Y, 4aR 8 i' � �' . +'�}C�,3• ,uc,:...+{ �s•: . '. t„ .::y.}:;.,v.:yvv.v..w:.y::.}; F''�i' 1JX:, ,�-0 v ;v ,v\�i h tea• s _ . �. :.,•�F�..,.,tSi.. `, +�':`.,,�,'\ vti�2; ' '\ �:+<',1'v'',Lti't'}',: Check dams, 4" minus rock SWDM 5.4.6.3 $ 67.51 Each 19 1 1283 Crushed surfacing 1 1/4" minus WSDOT 9-03.9(3) $ 85.45 CY Ditching $ 8.08 CY 75 1 606 Excavation -bulk $ 1.50 CY Fence, silt SWDM 5.4.3.1 $ 1.38 LF 984 1 1358 Fence, Temporary (NGPE) $ 1.38 LF 1140 1 1573 Hydroseeding SWDM 5.4.2.4 $ 0.59 SY 2372 1 1399 Jute Mesh SWDM 5.4.2.2 $ 1.45 SY Mulch, by hand, straw, 3" deep SWDM 5.4.2.1 $ 2.01 SY Mulch, by machine, straw, 2" deep SWDM 5.4.2.1 $ 0.53 SY Piping, temporary, CPP, 6" $ 10.70 LF Piping, temporary, CPP, 8" $ 16.10 LF Piping, temporary, CPP, 12" $ 20.70 LF 60 1 1242 Plastic covering, 6mm thick, sandbagged SWDM 5.4.2.3 $ 2.30 SY Rip Rap, machine placed; slopes WSDOT 9- 13.1(2) $ 39.08 CY Rock Construction Entrance, 50'x15'x1' SWDM 5.4.4.1 $ 1,464.34 Each Rock Construction Entrance, 100'x15'x1' SWDM 5.4.4.1 $ 2,928.68 Each 1 1 2929 Sediment pond riser assembly I SWDM 5.4.5.2 $ 1,949.38 Each Sediment trap, 5' high berm SWDM 5.4.5.1 $ 17.91 LF 60 1 1075 Sed. trap, 5 high, riprapped spillway berm section SWDM 5.4.5.1 $ 68.54 LF 6 1 411 Seeding, by hand SWDM 5.4.2.4 $ 0.51 SY Sodding, 1" deep, level ground I SWDM 5.4.2.5 $ 6.03 SY Sodding, 1" deep, sloped ground SWDM 5.4.2.5 $ 7.45 SY TESC Supervisor $ 74.75 HR 8 Water truck dust control y�`y+�'' �yp]y y fi jy +:iF.�36. `52. .0 +.5.«T:. a'i2..RYC11 \� Catch Basin Protection SWDM 5.4.7 tl �. a ♦ $ • 97.75 a $ 150.00 HR Each K +'2 a4' 17 �t�� "'kv''\.`l ; .. . : 1 l vk ��j., +� +��'�,�,1� ' : ;,. , w .., v �• 2550 Page 2 of 9 bond_quantity_worksheet Revised.XLS Site Improvement Bo(a Quantity Worksheet ESC SUBTOTAL: 30% CONTINGENCY & MOBILIZATION: ESC TOTAL: COLUMN: $ 14,425.81 $ 4,327.74 $ 18,753.55 A Unit prices updated: 02/12/02 Version: 04/22/02 Report Date: 9/18/03 l'VC.'6.x`t}xA`h1.A. k.� \vt hc \aV. \.i.A . ... e,'1lp` • may.` ` s VU $ 5.62 CY ..:.: w•.:. v:•. . .n •C > • A"� • f • Backflll & Compaction- embankment Backfill & Compaction- trench $ 8.53 CY Clear /Remove Brush, by hand $ 0.36 SY Clearing/Grubbing/Tree Removal $ 8,876.16 Acre 0.09 798.85 0.71 6,302.07 Excavation - bulk $ 1.50 CY 35 52.50 445 667.50 Excavation - Trench $ 4.06 CY Fencing, cedar, 6' high $ 18.55 LF 75 1,391.25 Fencing, chain Zink, vinyl coated, 6' high $ 13.44 LF Fencing, chain Zink, gate, vinyl coated, 20' $ 1,271.81 Each Fencing, spilt rail, 3' high $ 12.12 LF . Fill & compact - common barrow $ 22.57 CY 100 2,257.00 420 9,479.40 Fill & compact - gravel base $ 25.48 CY - Fill & compact - screened topsoil $ 37.85 CY Gablon,12" deep, stone filled mesh $ 54.31 SY Gabion, 18" deep, stone filled mesh $ 74.85 SY Gabion, 36" deep, stone filled mesh $ 132.48 SY Grading, fine, by hand $ 2.02 SY Grading, fine, with grader $ 0.95 SY Monuments, 3' long $ 135.13 Each 1 135.13 _ Sensitive Areas Sign $ 2.88 Each 5 14.40 Sodding, 1" deep, sloped ground $ 7.46 SY Surveying, line & grade $ 788.26 Day Surveying, lot locationAlnes $ 1,556.64 Acre 0.09 140.10 0.71 1,105.21 Traffic control crew (2 flaggers) $ 85.18 HR Trail, 4" chipped wood $ 7.59 SY Trail, 4" crushed cinder $ 8.33 SY Trail, 4" top course $ 8.19 SY Wall, retaining, concrete $ 44.16 SF WaII, rockery $ 9.49 SF 260 2,467.40 570 5,409.30 Page 3 of 9 *KCC 27A authorizes only one bond reduction. bond quantityworksheet Revised.XLS Site Improvement Bore Quantity Worksheet SUBTOTAL 5,850.98 24,369.14 Unit prices updated: 02/12/02 Version: 4/22/02 Report Date: 9/18/03 i','S:ii,:::aG.a,i •; ••• v. ', 4 'a\'1wV, `• "' ^AC: i, >*�� �$ � ( ,�`� "�c. `t: ^.':" `;1y ,� �, \�,,,,:; \`v:i +::`Y•`;,;Y;: \`: ��y. ,, �+,� ;;,����,�� ,�,,, •.,,C'?;'��i�,1:�2'm\ ` xt,\\ xb^+`. '`>t \\Yt \*2t�„�,;,'9. \ "�`�+:.�• �+,3�, Il IM''' �' :t ^`� � ; a „ • , .. :' ari'."' \,\ � , •\ M1�\ i •, � � 7 a�: + i � M � 1 � `. .;. +\ , \.i \±Z`x . .... •e . �t:;t `h \�� .• }. ,; \.. M1:2 \ k ;t • <'i , X7 •+�+�y�4 : , . 3�:4t1gniiL..'\,h ;fi,.k','^.. " \•' y � \` \. y,+,', `; , � \ti v ` }\.�Sv' i:� ,�,� ? ,•, R , iiit,•{2 \\...`, i , ': •tV \A\ .�..;.,.. •< i \�' � \. 5 "'';,' •, •_ ;'1,. < : m ;�. � y ' ;\ �..� Q+ti,. VI 2 .. '�, R : i:J�">, +�. 2,'� •,'ii ' tia� 2 �' :':a\\\�„ 'x ' �:' "Q',\`aw ".2, 4 i ,. �a. �. \s ;�a \ , �` " .AS•, "v \, Y•`:,vY •;:. ,;:'a' \,'.,.y , rte y .. '� x R+T11�k'' . �,'` a``•',; WC• '. ^k `,. t�'.:' Y< 02� +�+ ••,,.p„ :• ....'< • 1.Q .A.'�;,''".� "�i`:: .,''�; ,.•+,,; ;d.' �tA \ . : .i,�.,',i `\ .. ''�•'., �k \� .` �a�a. $ 23.00 1.. ``�.'� SY . ` K, t,A .' �' ti * 7N. ` :\`` � h, :` `h , �L' '�.`,�:; s,.... \Jh"� C,. .{s,s ... .. "^: v l'S`, �U. a \ \:'`�'a�L. \,...�.'"'�v� \ \ \a•� +Y�.\ ,itis"''2 . • ' \ \` AC Grind19, 4 wide machine < 1000sy AC Grinding, 4 wide machine 1000- 2000sy $ 5.75 SY AC Grinding, 4 wide machine> 2000sy b 1.38 SY AC Removal/Disposal/Repair $ 41.14 SY , Barricade, type I 3 30.03 LF Barricade, type 111 ( Permanent) $ 45.05 LF Curb & Gutter, rolled $ 13.27 LF Curb & Gutter, vertical 5 9.69 IF 1 Curb and Gutter, demolition and disposal $ 13.58 LF Curb, extruded asphalt $ 2.44 LF Curb, extruded concrete $ 2.58 LF Sawcut, asphalt, 3" depth $ 1.85 LF 101 186.85 Sawcut, concrete, per 1" depth $ 1.69 LF Sealant, asphalt $ 0.99 LF 101 99.99 Shoulder, AC, ( see AC road unit price) $ - SY Shoulder, gravel, 4" thick $ 7.53 SY Sidewalk, 4" thick $ 30.52 SY Sidewalk, 4" thick, demolition and disposal $ 27.73 SY Sidewalk, 5" thick $ 34.94 SY Sidewalk, 5" thick, demolition and disposal $ 34.65 SY Sign, handicap $ 85.28 Each Striping, per stall $ 5.82 Each Striping, thermoplastic, ( for crosswalk) $ 2.38 SF Striping, 4" reflectortzed line $ 0.25 LF Page 4 of 9 *KCC 27A authorizes only one bond reduction. bond _quantity _ worksheet_Revised.XLS Site Improvement Bo��l Quantity Worksheet SUBTOTAL 286.84 Unit prices updated: 02/12/02 Version: 4/22/02 Report Date: 9/18/03 � . \, , kx s ' \ - .. `te +:`s2;:ic:.;:: �w.�. ::��. • y ,,.,, y ..� . •��.�. ' ,, �'4 ,*»,',,,,,,,,'��\„�• ,,,,,,,,'• a+e+ ;. .\`I,,,,,,M +, '°, ? v � c ; {• .' + ,,`ia:',., 1 -. . », \`,'. - ����v�~ , a ', 2i' ,` r�'?;,. , } ,�+. v . » :\;i < .',, , a �i�, •, \:- . + �`.. �h . h : ", � : .��.' oa, a.. • �` . ,,:.. : o .,6 to , 'Y t, , • :., ;`: 'fit `. ,•,+ - »; x , `' i��i4+ • + k +; ?�: : »+ ti , .'�fv � �,. ti , ;is •: `'.:• �..; s 15.' » 'cc v�:...._,� •fi �,�, ',` \. "�'c]., ;,;�. \ ?3!'71 .•. ,.,. ROM :. L* . ;a+;. • x"'`"`•,a`4 C+ OiA\ � '+2?w 'F�@tf�fi El " , pia:;? • ` - "•:,`:xa 3�+� • \,;. �t > t'\ '7t • �, \\. ,;;;;;•; ;� -- ax. }� \ +,T »•A +. '-� $ 'AZZ _rmit, ', ". 11 y a x u.� 1[.�„,,,, 'k . 11. For KCRS '93, (additional 2.5" base) add: $ 3.60 SY ..S.J ,'�,\• .?h,' . F�\ ir�\ \i•:,Y`YNCitit,�,. \ a`YaL.♦, AC Overlay, 1.5" AC $ 7.39 SY AC Overlay, 2" AC $ 8.75 SY AC Road, 2", 4" rock, First 2500 SY $ 17.24 SY AC Road, 2", 4" rock, Qty. over 2500SY $ 13.36 SY AC Road, 3", 4" rock, First 2500 SY $ 19.69 SY AC Road, 3 ", 4" rock, Qty. over 2500 SY $ 15.81 SY AC Road, 5", First 2500 SY $ 14.571 SY AC Road, 5", Qty. Over 2500 SY $ 13.94 SY AC Road, 6", First 2500 SY $ 16.76 SY 313 5,245.88 409 6,854:84 AC Road, 6", Qty. Over 2500 SY $ 16.12 SY Asphalt Treated Base, 4" thick $ 9.21 SY Gravel Road, 4" rock, First 2500 SY $ 11.41 SY Gravel Road, 4" rock, Qty. over 2500 SY $ 7.53 SY PCC Road, 5", no base, over 2500 SY $ 21.51 SY PCC Road, 6", no base, over 2500 SY $ 21.87 SY Thickened Edge $ 6.89 LF 28 192.92 25 172.25 Page 5 of 9 •KCC 27A authorizes only one bond reduction. bond_quantity Revised.XLS Site Improvement Bor'l Quantity Worksheet SUBTOTAL 5,438.80 7,027.09 Unit prices updated: 02/12/02 Version: 4/22/02 Report Date: 9/18/03 :., „ \�+ , ,U \ti ;Y,,;a , ' ' , .''t' �y�,;', • a*a aw as h. .a \ ... '` , �,' -.:4`i'&<:. '".a s . , \ ... ' k'�: , • � +lW .... •{;•',< • . : ; ", `'a <a . ' trc _ ,' ', • 'c;; ♦ + ' ,,t„ \ m �+�� y � ' •�,if � l8 ` ., " a ''� yv.� : ik ... � 4 •. r^; ;; :, ' ' ; : ' : ;c �y , o-: y� h,+ ♦ : i .. �t' ,. N .�c; \. M w ;.,+ • 3,. : :.k, • •+`k:,. ,• � {.$��� , ,A .. SK�!'�e ' � "" � • \•• Y+.'4z.�+ Wst�F .�,+tc..� : W.:.14...,..... , •,,i< M a ,:y..• `, .: .r :�,2} 7 � +e,: �L,\2 :...... ..... • a \L,:' •'tti,.. 't't, ,,, 2, w x : :.x .. y \ Access Road, R/D $ 16.74 SY Bollards - fixed $ 240.74 Each Bollards - removable $ 452.34 Each • (CBs include frame and lid) CB Type I $ 1,257.64 Each 8 10,061.12 8 10,061.12 CB Type IL $ 1,433.59 Each CB Type tl, 48" diameter $ 2,033.57 Each 1 2,033.57 for additional depth over 4 $ 436.52 FT 2 873.04 CB Type II, 54" diameter $ 2,192.54 Each 1 2,192.54 for additional depth over 4 $ 486.53 FT 1 486.53 CB Type II, 60" diameter $ 2,351.52 Each for additional depth over 4 $ 536.54 FT CB Type II, 72" diameter $ 3,212.64 Each for additional depth over 4 $ 69221 FT Through -curb Inlet Framework (Add) $ 366.09 Each Cleanout, PVC, 4" $ 130.55 Each Cleanout, PVC, 6" $ 174.90 Each 10 1,749.00 Cleanout, PVC, 8" $ 224.19 Each Culvert, PVC, 4" $ 8.64 LF Culvert, PVC, 6" $ 12.60 LF 153 1,927.80 175 2,205.00 Culvert, PVC, 8" $ 13.33 LF Culvert, PVC, 12" $ 21.77 LF Culvert, CMP, 8" $ 17.25 LF Culvert, CMP, 12" $ 26.45 LF Culvert, CMP, 15" $ 32.73 LF Culvert, CMP, 18" $ 37.74 LF Culvert, CMP, 24" $ 53.33 LF Culvert, CMP, 30" $ 71.45 LF Culvert, CMP, 36" $ 112.11 LF Culvert, CMP, 48" $ 140.83 LF Culvert, CMP, 60" $ 235.45 LF Culvert, CMP, 72" $ 302.58 IF Page 6 of 9 •KCC 27A authorizes only one bond reduction. bond quantity Revised.XLS Site Improvement Boe Quantity Worksheet SUBTOTAL 14,895.53 16,694.19 Unit prices updated: 02/12/02 Version: 4/22/02 Report Date: 9/18/03 , • ' y ' y i {ii}.ti V < ,'v }: , ' •:,' ' i'' ' "{•:{ •. ,,, ♦, ♦ + L \', '. ,, u { +\: h ' ',v,4 ,*• , •`'•'E '��,' '� - Y,v. �, . �: y � �'•. ,•4 \'� 4\ \\ ` 4., ,•p '• . 4 y ` M``1 {tia' { ','ce �e: .mat, t�'„ *+1�.7{ \4''S?CiC.,* `,}'�`,'�t� � } ' i { 4 { , : •: {tiA{' �!{. v� ih, + '{{,,,, 3 4 " ..�,}�4,4 ' y ` V, � •. .}.� .+ha �•• � > }S S' '_ . '.; ..' ♦� '7<k } ` �'' � R'4y t..lF :. Y.�.ni4 y:: \'4. {K•ti . , Ai .:1�p!•v n .::':�, v{ , t i' 4 \ +'•y�.` .. `: y �. ry `p } '�� ' `y ...1! �•'Y.�' z ., ~ ;ak{ ,x ♦ s Z .. `. . .�'..:. ' Y: , •. . M: "• }' wy, ,�.}�. �{ 4 ^ ,,� , , ,�i . p •: f:: n .., ::.., p 'V% yt y{'<i, :C„.:'r \ !� 1{, ,. 4 s „ \? v ,+ ♦ i.` ;,.zA '1a7 :?.• ` !t• . 9�4\ '........ ..}"V ' Q� ', ` .. .:•$- • 1 A." AS , Un {{ 1" { . '.C{'tiw'''' ' 1 , „? .` . -. 9[�� }Ai{ j/ � y � ". y t^' ` .. `� a4' `{'' '., � ... .�kt' , ��+`... . a sh 'Y'' :.` , - 014 . $: • }- ... ps� .:: .. . - ::5 . ,y i �• 'r'A n 'y��•n�•• ,k } }. \ •}�:l v .. � , { . y, ; �L•. ,k \ .. ,••• , • .. { .,,..., ,;:. ,•. t a- , �Sx`,, \� w ., �. ' '�+.'.'4+, 4 2tKv:+ A•R�: Culvert, Concrete, 8" $ 21.02 LF ` Culvert, Concrete, 12" $ 30.05 LF Culvert, Concrete, 15" $ 37.34 • LF Culvert, Concrete, 18" $ 44.51 LF Culvert, Concrete, 24" $ 61.07 LF Culvert, Concrete, 30" $ 104.18 LF Culvert, Concrete, 36" $ 137.63 LF Culvert, Concrete, 42" $ 158.42 LF Culvert, Concrete, 48" $ 175.94 LF Culvert, CPP, 6" $ 10.70 LF Culvert, CPP, 8" $ 16.10 LF Culvert, CPP, 12" $ 20.70 LF 765 15835.5 375 7762.5 Culvert, CPP, 15" $ 23.00 LF Culvert, CPP, 18" $ 27.60 LF Culvert, CPP, 24" $ 36.80 LF Culvert, CPP, 30" $ 48.30 LF Culvert, CPP, 36" $ 55.20 LF Ditching $ 8.08 CY Flow Dispersal Trench (1,436 base +) $ 25.99 LF 50 2735.5 French Drain (3' depth) $ 22.60 LF 234 5288.4 Geotextlle, Iald in trench, polypropylene $ 2.40 SY Infiltration pond testing $ 74.75 HR Mid-tank Access Riser, 48" die, 6' deep $ 1,605.40 Each Pond Overflow Spillway $ 14.01 SY Restrictor /0lI Separator, 12" $ 1,045.19 Each 1 1045.19 Restrictor /Oil Separator, 15" $ 1,095.56 Each Reshictor /011 Separator, 18" $ 1,146.16 Each Riprap, placed $ 39.08 CY 5 195.4 Tank End Reducer (36" diameter) $ 1,000.50 Each Trash Rack, 12" $ 211.97 Each 1 211.97 Trash Rack, 15" $ 237.27 Each Trash Rack, 18" $ 268.89 Each Trash Rack, 21" $ 306.84 Each Page 7of9 *KCC 27A authorizes only one bond reduction. bond_quantlty Revised.XLS Site Improvement BoMM Quantity Worksheet SUBTOTAL 16047.47 17026.99 Unit prices updated: 02/12/02 Version: 4/22/02 Report Date: 9/18/03 ;: •.•., .,,, , ,..; . - ' , • :. •,''': " " .,;i�\���� .�. • ,� "�' : + 'Y• .,� . • '\.\ - , :'. +• . • `S: 'tk, Z `A \ '• , , . \ k •o `�'.; +,+M1 ,+, , • , •1W' Y . iii,\ii' ,�, . � \. .:, � \• }, '� - �,'i,\','R, + '�kv���' +iil�.1 \'h T�.� ,{ .T:.T � +" A � $ • :, L•1:A`•��: '\ ;i�il,. M1 :+\ ti .. :.Yn : .; . ';'' ,'�,' `. •A ,. y;." :•� + '+'+; ,C \ +,. ,, `, ` . +. ••'�s , ;•:; `i: • <.M1� ... , ,,.:C y . t2J2 �' ti '� + : +Z" d.. + ; v { '.fi `� `� \•7 �•ti i \..w,, + , ; : � '4 i � • `4`�±C, .` \ \'',# ;*:i'9::{F. . 2`v + $\ ,"+\�\'cEC,9'c£±, . ':Ct ii w• :C ,' .;•F ~� •� ?; , � ' • " •. ,tl,�b. � } h , t + ' +• r ,+:IR . \ + +,'�'\,+,\ , +sL{+ , :.... .. .,.�• ?, ,� , • i70R '• £C+-'� �...,��„!".?�. ..l?t?F ,a.+e 4T >::•:J'.'ti� n .`:•. � • k•T ; N ': .'•:.. `�•„ .ei'vT.. n {� :i+v,ij'��ti: i ,, �i TT:•;' > e'ii^t� ,'� \ + � 4'KC,• •1'v`. i$$� 'i ,+i ,h,nH� ^ -011 ``���� ; k ]] alI 2 0. �:..u k a. {QAQ.,,.Y�,yM•�x b.: N.3t. �1,7•:: L.'. it d h . h ` •:; W' \ ,` •\ `%`:` , „{, .. %W \,+, :\ \`S . \, \, Vk +\ }Y, `l M1 \ \ \. h!T \\ { t+ .,... : 7,...... , , \ y ,,, \•� � 2, \`, \.::''.h. \`•:,i +n:v.i, 2" AC, 2" top course rock & 4" borrow $ 15.84 SY 2" AC, 1.5" top course & 2.5" base course $ 17.24 SY 4" select borrow $ 4.55 SY 1.5" top course rock & 2.5" base course $ 11.41 SY _ ..r `'�". v , '', � �ti , Y.'IX i'�i " +'+, , > � •k a�;f�.. ��.. n. as .�� ' �ts� ��, * ,• w� + � r • ••� •, .: .. : • ±. •;. ., . :%,...,.• . •` "C1 f'' � , x. �'� .,ry.�. ''.::: +*{`•i \ \''\iY L •. °�"'t�, >.r;�*�.���a�:'>:a:;�, } ... .;E a�,�•'�,: Detention Vault $ 8.00 CF. 8512 68,096.00 Floatable Material Separator $ 500.00 EA. 1 500.00 Guard Rail $ 20.00 LF 20 400.00 Railing $ 10.00 LF 70 700.00 EA. EA. LF SF LF LF Page 8 of 9 •KCC 27A authorizes only one bond reduction. bond_quantity Revlsed.XLS Site Improvement Bowl Quantity Worksheet SUBTOTAL SUBTOTAL (SUM ALL PAGES): 42 519.62 69.696.00 69.696.00 64,927.61 30% CONTINGENCY & MOBILIZATION: 12,755.89 20,908.80 19,478.28 GRANDTOTAL: 55,275.51 90,604.80 84,405.89 COLUMN: B C D E Unit prices updated: 02/12/02 Version: 4/22/02 Report Date: 9/18/03 Stabilization/Erosion Sediment Control (ESC) Existing Right -of -Way Improvements Future Public Road Improvements & Drainage Facilities Private Improvements Calculated Quantity Completed Total Right -of Way and /or Site Restoration Bond * /°* (First $7,500 of bond* shall be cash.) Performance Bond* Amount (A +B +C +D) = TOTAL Reduced Performance Bond* Total *** Maintenance/Defect Bond* Total NAME OF PERSON PREPARING BOND* REDUCTION: Page 9 of 9 bond_quantity worksheet Revised.XLS Site Improvement Bc,J Quantity Worksheet ( Original bond computations prepared by: Name: FOSTER RIDGE 6 -LOT B.L.A. Date: 31 -Jul -03 PE Registration Number: Tel. #: 425 -827 -2014 Firm Name: Penhallegon Associates Consulting Engineers, Inc. Address: 750 Sixth Street South, Kirkland, WA 98033 Project No: (A +B) $ 74,029.1 (T) $ 249,286.5 Minimum bond" amount is $1000. REQUIRED BOND* AMOUNTS ARE SUBJECT TO REVIEW AND MODIFICATION BY DDES ROAD IMPROVEMENTS & DRAINAGE FACILITIES FINANCIAL GUARANTEE REQUIREMENTS PERFORMANCE BOND* PUBLIC ROAD & DRAINAGE AMOUNT BOND* AMOUNT MAINTENANCE/DEFECT BOND* REQUIRED AT RECORDING OR TEMPORARY OCCUPANCY *** 18,753.6 55,275.5 90,604.8 84,652.6 (E) $ T x 0.30 $ 74,785.9 OR (T -E) $ 249,286.5 Use larger of Tx30% or (T -E) H. Peter Paulsen Date: (B +C) x 0.25 = $ * NOTE: The word "bond" as used in this document means any financial guarantee acceptable to King County. ** NOTE: KCC 27A authorizes right of way and site restoration bonds to be combined when both are required. The restoration requirement shall include the total cost for all TESC as a minimum, not a maximum. In addition, corrective work, both on- and off -site needs to be included. Quantities shall reflect worse case scenarios not just minimum requirements. For example, if a salmonid stream may be damaged, some estimated costs for restoration needs to be reflected in this amount. The 30% contingency and mobilization costs are computed in this quantity. *"* NOTE: Per KCC 27A, total bond amounts remaining after reduction shall not be less than 30% of the original amount (1) or as revised by major design changes. SURETY BOND RIDER NOTE: If a bond rider is used, minimum additional performance bond shall be J $ 175,257.4 I(C +D) -E 36,470:1 Unit prices updated: 02/12/02 Version: 4/22/02 Report Date: 9/18/03 ENGINEER DEVELOPER Name: Phil Cheesman Name: Richard Pedersen Firm Penhallegon Associates Consulting Engineers, Inc. Firm: Address: 750 Sixth Street South Address: P.O. Box 1518 Kirkland, WA 98033 Marysville, WA 98270 Phone: 425- 827 -2014 Phone: 360 -659 -0808 STORMWATER FACILITY SUMMARY SHEET Development Foster Ridge 6 -Lot B.L.A. Location Tukwila, Washington Developed Site: Acres 0.80 Number of detention facilities on site: ponds 1 vaults tanks Flow control provided in regional facility (give location) No flow control required Exemption number Downstream Draina a Basins KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL Number of lots 6 Date July, 2003 Number of infiltration facilities on site: ponds vaults tanks Number & type of water quality facilities on site: biofiltration swale (regular /wet/ or continuous inflow ?) combined detention/WQ pond (WQ portion basic or large ?) 1 combined detention/wetvault compost filter filter strip flow dispersion landscape management plan plate ?) catch basin inserts: Manufacturer pre - settling pond 1998 Surface Water Design Manual sand filter (basic or large ?) sand filter, linear (basic or large ?) sand filter vault (basic or large ?) stormwater wetland wetpond (basic or large ?) wetvault farm management plan oil/water separator (baffle or coalescing 9/1/98 KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL pre - settling structure: Manufacturer flow - sputter catchbasin Water Q>>ality treated volume or we s and Vr NOTE: Vb= Wetpool Volume Vr = Volume of Runoff from Mean Annual Storm 9/1/98 1998 Surface Water Design Manual KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL 1998 Surface Water Design Manual 9/1/98 REVISED WETLAND BUFFER ENHANCEMENT PLAN Foster Ridge Property Tukwila, Washington Prepared for: Richard Pedersen Parkside Management P.O. Box 1518 Marysville, WA 98270 Prepared by: Sheldon & Associates, Inc. 5031 University Way NE Seattle, WA 98105 (206) 522 -1214 June 11, 2003 Introduction Foster Ridge is a proposed residential development to be located on 2.92 acres at South 139 Street and 46 Avenue South (Figure 1 - Vicinity Map). The current proposal is for 6 lots to be located in the southwest portion of the property (Figure 2 — Site Map). All lots would lie to the west of Wetland 1. Lot 2, as shown on current plans, would encroach into the 50 -foot buffer around this Type 2 wetland. The City of Tukwila has requested that the Conceptual Wetland Buffer Enhancement Plan (Sheldon & Associates 1997) be modified to reflect the new 6 -lot layout and to propose mitigation for the buffer reduction along the south side of Lot 2 from 50 to 25 feet. The length of the buffer area that will be reduced by 25 feet is approximately 100 feet. The previous buffer .enhancement plan called for planting in all of the buffer around Wetland 1. Because of the change in lot layout, mitigation is now only required for the buffer encroachment along Lot 3 (City of Tukwila letter to John Friel, dated October 18, 2002). This report includes information on existing conditions in the buffer, details on proposed site preparation, planting plan, performance standards, maintenance plan, and monitoring plan. Existing Conditions Two wetlands are located on the site as described in the Wetland Delineation and Functional Values Assessment (Sheldon & Associates 1995). Wetland 2 is located mostly offsite. Wetland 1 is mostly onsite. This is a Type 2 wetland with a 50 -foot buffer. The buffer adjacent to Lot 2 is dominated primarily by Himalayan blackberry (Rubus procerus) with a patchy canopy of small red alder (Alnus rubra) and black cottonwood (Populus balsamifera). The average tree stem diameter in the area is about 7 inches and canopy cover ranges from 20 to 60 percent. There is a large opening in the canopy in the buffer where the Himalayan blackberry reaches up to 90 percent cover. Reed canarygrass (Phalaris arundinacea) and creeping nightshade (Solanum dulcamara) are the other invasive species that are present in the buffer, although these currently have negligible cover. Himalayan blackberry and reed canarygrass are also present in the wetland adjacent to this portion of the buffer. Buffer Enhancement Plan Overview The buffer enhancement plan will apply to the hatched area shown on Figure 2 and labeled as "Wetland Buffer Planting Area ". This area is 25 feet wide and about 100 feet long, totaling about 2,500 square feet. Figure 3 (3 pages) shows the buffer enhancement plant. The primary goal is for this plan to result in an enhanced wetland buffer with improved functions, vegetated with native plants appropriate to the surrounding upland and wetland vegetation. This goal will be met by implementation of the following objectives: 1. Remove and control invasive Himalayan blackberry with a combination of mowing, spot application of herbicide, and hand- grubbing. Pedersen/Foster Ridge Wetland Buffer Enhancement Plan Sheldon & Associates, Inc. Project #03 -772 1 June 11, 2003 2. Install plants at high densities to establish vegetative coverage as quickly as possible. 3. Apply sheet mulch as well as organic /chip mulch. 4. Perform site maintenance by regularly removing re- sprouting Himalayan blackberry and other invasive weedy species within planting area. 5. Maintain clear zone that is free of Himalayan blackberry in 5' wide perimeter strip around planted area to minimize re- invasion of planting area from outside. 6. Provide supplemental watering if needed in first two years. 7. Perform site monitoring as specified in this plan and submit monitoring reports to client and designated City of Tukwila staff. Site Preparation Site preparation is specified on Sheet 3 of the Planting Plan at the end of this report. Portions of this text are duplicated here. Clearing Invasive Plants Himalayan blackberry is a prevalent and problematic species at the site. Removal and control of this species will require ongoing and regular maintenance throughout the three year maintenance and monitoring period for this project to be successful and meet performance standards. Initial removal of Himalayan blackberry should be done as follows. Mow all blackberry in planting area to the ground in early -mid summer. Preserve all native shrubs within planting area (limited to half dozen individuals + willow thicket). Do not damage any existing native trees with mowing equipment. After 3 -4 weeks or when re- sprouting of blackberry occurs, cut sprouts to 3 -6" above ground and dab cut end with glyphosate herbicide. Cut ends should be dabbed within 1 -2 hours of cutting. Herbicide used must be approved for use around aquatic areas — e.g. Rodeo. Herbicide application should ideally be done in late summer (August) when plants are drawing carbohydrate reserves into the root systems. Planting Planting should not be done at the site until at least 6 weeks after herbicide application. Ideal planting time is late fall (Oct -Nov), when plants are dormant. This will minimize transplant shock and the need for immediate watering. Plants must be of local origin (genotype from western Washington lowland elevation). It is intended that plants be installed in dense clusters rather than evenly spaced across the entire planting area. This should help new , plantings establish dominance, by creating shade /cover to outcompete invasives as quickly as possible. Planting schemes for each of the two specific micro -site conditions are illustrated at the end of this report (Sheets 1 and 2). A complete plant list is given in Table 1. Pedersen/Foster Ridge Wetland Buffer Enhancement Plan Sheldon & Associates, Inc. Project #03 -772 2 June II, 2003 Scientific Name Common Name I Qty i Size j Spacing Trees Pseudotsuga menziesii Douglas fir 12 1 2 gal 6 -12' o.c. Thuja plicate westem red cedar 18 2 gal 6 -12' o.c. Tsuga heterophylla westem hemlock 12 2 gal 6 -12' o.c subtotal 42 Shrubs Crataegus douglasii Douglas hawthome 20 2 gal 3 -6' o.c Oemlaria cerasiformis Indian plum 20 2 gal 3 -6' o.c Rosa nutkana Nootka rose 75 1 gal 2 -3' o.c. Rubus parviflrous thimbleberry 20 1 gal 2 -3' o.c. Rubus spectabilis salmonberry 40 2 gal 3-4' o.c Salix scouleriana Scouter willow 20 2 gal 3 -6' o.c Sambucus racemosa red elderberry 15 2 gal 4 -6' o.c. Symphoricarpos albus snowberry 75 1 gal 2 - 3' o.c. subtotal 285 Total o of plants 327 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Table 1. Plant List for Buffer Enhancement. Plants should be installed in plant pits at least twice the diameter of the plant container /root ball. The bottom of the planting hole should be scarified. Plant pits should be backfilled with native soil and watered in at the time of planting. Plants should be installed at the same soil depth as they were planted in the pots. Each plant will be planted with one 21 gram slow release fertilizer tablet (Agriform 20 -10 -5 or equivalent — available from Forestry Suppliers Inc.). Each plant will be marked with brightly colored plastic flagging. After plant installation, each plant should be sheet - mulched with a double layer of commercial grade cardboard (e.g appliance boxes). Sheet mulch squares should be approximately 3' x 3' for each plant, and should cover the soil directly over the installed plant. After cardboard has been laid down, the entire planting area will be mulched with mixed arborist chips to a depth of 4 ". This is done to retain soil moisture, add organic material to soil matrix over time, and to combat weeds. Chip mulch should be kept from touching the trunks of installed plants (e.g. keep 1" around entire circumference of trunk clear of chips). Bark mulch or cedar chips are not acceptable substitutions for specified mulch. Total quantity of chips required to mulch planting area to a depth of 4" = 28 cu. yds. (assumes 2500 sq. ft. planting area — adjust amount as needed for differing area). Maintenance Due to site conditions (partial shade, soil moisture) and extensive mulching, supplemental watering is not anticipated to be necessary. However, site conditions should be monitored carefully in the first year, and a plan or strategy for temporary irrigation should be made at the time of planting in case it is necessary. Supplemental watering is generally 1" of water weekly during the first growing season, tapering to 'A" weekly the second year. Pedersen/Foster Ridge Wetland Buffer Enhancement Plan Sheldon & Associates. Inc. Project #03 -772 3 June 11, 2003 The landscape contractor will be responsible for guaranteeing installed plants for one year after initial planting. During the warranty period, the contractor will be required (by contract) to provide maintenance for the project. Maintenance in the first year will include weeding, replacement of dead or dying plants, watering as needed, trash removal, and re- application of chip mulch to maintain a depth of at least 4" in the first year after installation. Maintenance needs in subsequent years will depend on site conditions, but will involve regular weed control and chip mulch re- application at a minimum. Maintenance Schedule Performance Standards Measurable performance standards are necessary to assess the achievement of success or failure of a project. Performance standards for this project are as follows: 1. Aerial coverage Planted material Invasive non - native species Year 1 no standard <10% Year 2 >50% <10% Year 3 >75% <10% Aerial coverage will be measured by visual estimate across the entire site for invasive species. For planted material, aerial coverage will be measured within representative plots and extrapolated for the entire site. Desirable native species that volunteer within the planting area can be included in aerial coverage estimates. 2. Plant Survival of Installed Material Year 1 100% (guaranteed by contractor) Year 2' >85% Year 3 >85% Plant survival will be calculated in the first year by counting each installed individual. In subsequent years, survival can be calculated by counting all installed individuals on site or by counting individuals within plots and extrapolating for the entire site. 3. Plant Species Diversity Tree layer: 3 native conifer species present and growing in each of three monitoring years Pedersen/Foster Ridge Wetland Buffer Enhancement Plan Sheldon & Associates, Inc. Project #03 -772 4 June 11, 2003 Action Year Weed Control Watering Trash Mulch Re- planting 1 April, June, August June -Oct as needed April, June, August summer/fall as needed fall 2 April, June, August June -Oct as needed April, June, August summer /fall as needed _ 3 To be determined To be determined To be determined fall To be determined The landscape contractor will be responsible for guaranteeing installed plants for one year after initial planting. During the warranty period, the contractor will be required (by contract) to provide maintenance for the project. Maintenance in the first year will include weeding, replacement of dead or dying plants, watering as needed, trash removal, and re- application of chip mulch to maintain a depth of at least 4" in the first year after installation. Maintenance needs in subsequent years will depend on site conditions, but will involve regular weed control and chip mulch re- application at a minimum. Maintenance Schedule Performance Standards Measurable performance standards are necessary to assess the achievement of success or failure of a project. Performance standards for this project are as follows: 1. Aerial coverage Planted material Invasive non - native species Year 1 no standard <10% Year 2 >50% <10% Year 3 >75% <10% Aerial coverage will be measured by visual estimate across the entire site for invasive species. For planted material, aerial coverage will be measured within representative plots and extrapolated for the entire site. Desirable native species that volunteer within the planting area can be included in aerial coverage estimates. 2. Plant Survival of Installed Material Year 1 100% (guaranteed by contractor) Year 2' >85% Year 3 >85% Plant survival will be calculated in the first year by counting each installed individual. In subsequent years, survival can be calculated by counting all installed individuals on site or by counting individuals within plots and extrapolating for the entire site. 3. Plant Species Diversity Tree layer: 3 native conifer species present and growing in each of three monitoring years Pedersen/Foster Ridge Wetland Buffer Enhancement Plan Sheldon & Associates, Inc. Project #03 -772 4 June 11, 2003 Year Site Visit Report 0 Fall (post - construction) As -built report (fall/winter) 1 April (w /contractor), June (monitoring) Annual monitoring report (July) 2 April (w /contractor), June (monitoring) Annual monitoring report (July) 3 June (monitoring) Final monitoring report (July) 1 1 1 1 1 1 1 1 1 1 1 1 1 1 t Shrub layer: 3 native shrub species present and growing in each of three monitoring years in open canopy portion of planting area; 7 native shrub species present and growing in each of three monitoring years in closed canopy portion of planting area. Monitoring Monitoring of the project should be done annually per City of Tukwila code requirements. Site monitoring should include measurement of all parameters described in the Performance Standards section of this report. Permanent plots or transects should be established and monitored each year. Plots or transects should be located to represent typical site conditions within the project area. Permanent photo - points should also be established so as to depict the entire project area. Site photos should be taken annually and submitted with monitoring reports. Site monitoring should be performed by June 30 of each monitoring year, and monitoring reports should be submitted to the client and designated City of Tukwila staff person within one month of the monitoring site visit. Subsequent to project installation, a site visit should be made to confirm that the project was installed according to plan (as -built conditions). It is also strongly recommended that the monitoring biologist or project designer meet on site with the contractor at the start of the first year post - construction (March/April) to review weed control and watering protocols. Pedersen/Foster Ridge Wetland Buffer Enhancement Plan Project #03 -772 5 Sheldon & Associates, Inc. June 11,2003 Figure 1 Vicinity Map Pedersen /Foster Ridge Wetland Buffer Enhancement Plan Sheldon & Associates, Inc. Project #03 -772 June 10, 2003 • \\ ' 1 1 • 5 1 19 A ) 10 ♦• / 1 1 1111.. ..ere_ '210 1. . . ' ~ -� 5,810 s. maw IN. TRACT 99 \ 92,5704.F. 1 . nt \�:�•1, - rTh r- _J . ats S.F. ,939 S.F. and a . r OPEN SPACE A 4 54 0 -- ,-� /�- WETLAND •�' r \ \ • c 11.107 CF. •\ .e • e. = v 30 • • ‘‘• ♦ ♦ \ \ \ \\`` \ \` ` \�� // / ` \ / / � _� - 150 - -•% `� • \ \ • / Alf 0 - INethnscl Buffer ,. ---,�♦ • \ \ v • a- ' /-. 180 1 \ \ \\ \•\ \ 139 5T. (PAVED) _ t N 1 g ' RAVED) 1 - / / . ,1� / j ' ♦ ` ♦ • • % ♦♦ \.� • \ • H 1p _araa• - • Pedersen/Foster Ridge Wetland Buffer Enhancement Plan Project #03 -772 J /0, I Sheldon & Associates, Inc. June 10, 2003 � i t , ZZ 1 ;•,; N Figure 2 Site Map Z 5' PLANTING SCHEME FOR CLOSED CANOPY AREA (Approx. 1800 -2000 sq. ft.) Zs' Planting Scheme for entire area 185 shrubs @ average spacing of 3-4' on center 30 trees @ average spacing of 8' on center Species List for example 625 sq. ft area shown Shrubs: qty 60 shrubs Crataegus douglasii — Douglas hawthorne Oemlaria cerasiformis — Indian plum Rosa nutkana — Nootka rose Rubus spectabilis — salmonberry Salix scouleriana — Scouler willow Sambucus racemosa — red elderberry Symphoricarpos albus — snowberry Trees: qty 12 trees Thuja plicate — western red cedar Tsuga heterophylla — western hemlock 10% qty = 6 10% qty = 6 20% qty = 12 20% qty =12 10% qty = 6 10 % qty =6 20% qty. = 12 Subtotal = 60 60% qty = 7 40% qty = 5 Subtotal =12 LEGEND cedar hemlock Closed canopy area constitutes the majority of the buffer that is to be enhanced. Cluster plantings in groups of same species. Rose and snowberry are to be planted densely in one or two thickets at 2 -3' spacing, while larger shrubs, are spaced more widely 3 -6' on center as shown. Conifers are to be planted in groups with spacing ranging from 6 -12' on center. PEDERSEN /FOSTER RIDGE Wetland Buffer Enhancement Plan Sheet 1 of 3 Project #03 -772 June 2003 O 0 H I willow salmonberry elderberry hawthome indian plum rose/snowberry Sheldon & Associates, Inc. 5031 UNverefty Way NE 1204 Seattle, WA 98105 Ph 206 - 522 - 1214 • Fx 206.522 - 3507 Wetland 6 Environmen:al Censudents • PLANTING SCHEME FOR OPEN CANOPY AREA (Approx. 600 sq. ft.) 25' Planting Scheme for entire area 100 shrubs @ average spacing of 2 -3' on center 12 trees @ average spacing of 8' on center Species List for example 625 so. ft. Shrubs: qty 100 shrubs Rosa nutkana — Nootka rose Rubus parviflorus — thimbleberry Symphoricarpos albus — snowberry Trees: qty 12 trees Pseudotsuga menziesii — Douglas fir area shown 40% qty. = 40 20% qty. = 20 40% qty. = 40 Subtotal = 100 100% qty. = 12 Subtotal = 12 LEGEND T Open canopy area is located along the north side of the wetland buffer that is to be enhanced. Rose and snowberry are to be planted densely across the area, with several patches of thimbleberry. Douglas fir are to be planted in groups with spacing ranging from 6 -12' on center. PEDERSEN /FOSTER RIDGE Wetland Buffer Enhancement Plan Sheet 2 of 3 Project #03 -772 June 2003 Douglas fir thimbleberry rose /snowberry Sheldon & Associates, Inc. 5031 UNversity Way NE 1204 Seattle, WA 98105 Ph 206 • Fx 206 522.3507 Wetland a Environmental Consultants Scientific Name Common Name Qty Size Spacing Trees Pseudotsuga menziesii Douglas fir westem red cedar _ 12 18 2 gal 2 gal 6 -12' o.c. 6 -12' o.c. Thuja plicate Tsuga heterophylla westem hemlock 12 2 gal 6 -12' o.c subtotal 42 Shrubs Crataegus douglasii Douglas hawthorne 20 2 gal 3 -6' o.c Oemlaria cerasiformis Indian plum 20 2 gal 3 -6' o.c Rosa nutkana Nootka rose 75 1 gal 2 -3' o.c. Rubus parvifirous thimbleberry ' 20 1 gal 2 -3' o.c. Rubus spectabilis salmonberry 40 2 gal 3-4' o.c Salix scouleriana Scouler willow 20 2 gal 3 -6' o.c Sambucus racemosa red elderberry 15 2 gal 4 -6' o.c. Symphoricarpos albus snowberry 75 1 gal 2 -3' o.c. subtotal 285 Total # of plants 327 PLANT SCHEDULE FOR WETLAND BUFFER ENHANCEMENT PEDERSEN /FOSTER RIDGE Wetland Buffer Enhancement Plan Sheet 3 of 3 Project #03 -772 June 2003 . Note: Plants must be of local origin (genotype from western Washington lowland elevation). SITE PREPARATION AND INSTALLATION NOTES 1. Mow all blackberry in planting area to the ground in early -mid summer. Preserve all native shrubs within planting area (limited to half dozen individuals + willow thicket). Do not damage any existing native trees with mowing equipment. Dispose of all plant debris off -site. 2. After 3-4 weeks or when re- sprouting of blackberry occurs, cut sprouts to 3 -6" above ground and dab cut end with glyphosate herbicide. Cut ends should be dabbed within 1 -2 hours of cutting. Herbicide used must be approved for use around aquatic areas — e.g. Rodeo. Herbicide application should ideally be done in late summer (August) when plants are drawing carbohydrate reserves into the root systems. 3. Planting should not be done at the site until at least 6 weeks after herbicide application. Ideal planting time is late fall (Oct -Nov), when plants are dormant. This will minimize transplant shock and the need for immediate watering. 4. Plants should be installed in plant pits at least twice the diameter of the plant container /root ball. Bottom of the planting hole should be scarified. Plant pits should be backfilled with native soil and watered in at the time of planting. Plants should be installed at the same soil depth as they were planted in the pots. Each plant will be planted with one 21 gram slow release fertilizer tablet (Agriform 20 -10 -5 or equivalent — available from Forestry Suppliers Inc.). Each plant will be marked with brightly colored plastic flagging. 5. After plant installation, each plant should be sheet - mulched with a double layer of commercial grade cardboard (e.g appliance boxes). Sheet mulch squares should be approximately 2 -3' x 2 -3' for each plant, and should cover the soil directly over the installed plant. 6. After cardboard has been laid down, the entire planting area will be mulched with mixed arborist chips to a depth of 4 ". This is done to retain soil moisture, add organic material to soil matrix over time, and to combat weeds. Chip mulch should be kept from touching the trunks of installed plants (e.g. keep 1" around entire circumference of trunk clear of chips). Bark mulch or cedar chips are not acceptable substitutions for specified mulch. Total quantity of chips required to mulch planting area to a depth of 4" = 28 cu. yds. (assumes 2500 sq. ft. planting area — adjust amount as needed for differing area). 7. Due to site conditions (partial shade, soil moisture) and extensive mulching, supplemental watering is not anticipated to be necessary. However, site conditions should be monitored carefully in the first year, and a plan or strategy for temporary irrigation should be made at the time of planting in case it is necessary. Supplemental watering is generally 1" of water weekly during the first growing season, tapering to Y2 weekly the second year. ufii; Sheldon & Associates, Inc. 5031 University Way NE 8204 Seattle, WA 98105 Ph 206- 522.1214 • Fx 206- 522.3507 Wetland & Environmental Consultants CORPORATE OFFICE 911 Fifth Avenue, Suite 100 Kirkland, Washington 98033 (425) 827 -7701 FAX (425) 827 -5424 BAINBRIDGE ISLAND OFFICE 179 Madrone Lane North Bainbridge Island, WA 98110 (206) 780 -9370 FAX (206) 780 -9438 SUBSURFACE EXPLORATION, GEOLOGIC HAZARD AND GEOTECHNICAL ENGINEERING REPORT FOSTER RIDGE TUKWILA, WASHINGTON PREPARED FOR JBMF Consulting Engineer PROJECT NO. KE96296A 1 February 13,`/99.16, Revised November 13, 1998 ieS1 ASSOCIATED EARTH SCIENCES, INC CITY OF TUKWILA JAN 0 6 1998 PERUJT CENTER Iwo SUBSURFACE EXPLORATION, GEOLOGIC HAZARDS, AND GEOTECHNICAL ENGINEERING REPORT FOSTER RIDGE 46TH AVENUE SOUTH AT SOUTH 139111 STREET TUKWILA, WASHINGTON February 13, 1997 Revised November 13, 1998 Project No. KE96296A I. PROJECT AND SITE CONDITIONS 1.0 INTRODUCTION This report presents the results of our previous and recent subsurface exploration, geologic hazards, and geotechnical engineering studies for the proposed 12 building lot residential subdivision. This current report has been revised to reflect changes in the site plan and delineation of the top of slope in the vicinity of Lots 6, 7, and 8. The proposed lot locations and approximate locations of the explorations accomplished for this study are presented on the Site and Exploration Plan, Figure 1. In the event that any changes in the nature, design, or location of the structures or lot/street layout are planned, the conclusions and recommendations contained in this report should be reviewed and modified, or verified, as necessary. 1.1 Purpose and Scope The purpose of this study was to provide subsurface soil and shallow ground water data to be utilized in the design and development of the above - mentioned residential project. Our recent field study included the excavation of nine exploration pits and performing geologic studies to assess the type, thickness, distribution, and physical properties of the shallow subsurface sediments. We also reviewed the previous field study and exploration logs. Geotechnical engineering studies were also conducted to evaluate seismic and erosion hazards and mitigations, the type(s) of suitable foundations, allowable foundation soil bearing pressure, anticipated foundation settlement, floor support, lateral wall pressures, and drainage considerations. This report summarizes our recent field work and offers development recommendations based on our present understanding of the project. 1.2 Authorization Written authorization to proceed with this study was granted by Mr. John B. Friel of JBMF Consulting Engineer. Our study was accomplished in general accordance with our scope of work letter dated November 25, 1996. This report has been prepared for the exclusive use of JBMF Consulting Engineer, and their agents, for specific application to this project. Within the limitations of scope, schedule, and budget, our services have been performed in accordance with generally accepted geotechnical engineering and engineering geology practices in effect in this area at the time our report was prepared. No other warranty, expressed or implied, is made. It must be understood that no recommendations or engineering design can yield a guarantee of stable slopes. Our observations, fmdings, and conclusions are a means to identify and reduce the inherent risks to the owner. 2.0 PROJECT AND SITE DESCRIPTION This report was completed with an understanding of the project based on a site survey plan with survey and topographic information provided by Barrett Consulting Group and proposed building lot locations presented by JBMF Consulting Engineer, and dated July 1998. Present plans call for two -story over daylight basement residential structures utilizing conventional wood -frame construction with slab -on -grade floors in the lower level. Finish grade elevations were not available at the time of this report, but it is anticipated that in order to accommodate the daylight basements that cuts on the upslope side of the structures will not exceed 10 feet, and will generally be less. The property was situated on the east side of 46th Avenue South. between South 139th and South 140th Streets upslope and to the west of Interstate 5 in Tukwila, Washington. The parcel was located on north to northeast facing slopes with gradients ranging from about 10 to 80 percent. Based on topographic information shown on the site plan, total elevation change across the site was on the order of 70 feet. An area of standing surface water was noted within Tract 99, which has been identified on the site plan as wetland and open space. Surface water flowed from the wetland area downslope and through the eastern half of Lot A. The flow rate was estimated at roughly 5 gallons per minute. Our recent field work was performed during a period of wet weather. Vegetation on the site primarily consisted of deciduous trees with a heavy undergrowth of berry vines, ivy, and other ground cover. An old retaining wall, approximately 40 feet long and 6 feet tall, was located at the south end of Lot 8 and Tract 99. Also, based on site reconnaissance and information presented in our previous report, it was evident that past grading or filling has occurred on portions of the property. An old dirt access road extended from the present terminus of South 139 Street to the northern end of Lot 8. The toe of the steep slope east of Lot 7 (off -site) was undercut approximately 15 feet, and the near vertical cut was not retained. A single - family residence, with garage and driveway, was located at the toe of the slope. 3.0 SUBSURFACE EXPLORATION Our field studies included excavating a series of exploration pits and performing a geologic hazard reconnaissance to gain information about the site. The various types of sediments, as 2 well as the depths where characteristics of the sediments changed, are indicated on the exploration logs presented in the Appendix. The depths indicated on the logs where conditions changed may represent gradational variations between sediment types in the field. Our explorations were approximately located in the field by estimating locations from lcnown site features shown on a topographic survey presented on a conceptual grading plan prepared by PAC -TECH Engineering, Inc., identified as "Plan C" and dated 2/5/91, and on a site plan without topographical information prepared by Barrett Consulting Group dated August 1996. The most recent site plan upon which this report revision is based was prepared by JMBF Consulting Engineer dated July 1998. The conclusions and recommendations presented in this report are based on visual . reconnaissance and the nine recent and seven previous exploration pits. The number, location, and depth of the explorations were completed within site and budgetary constraints. Because of the nature of exploratory work below ground, extrapolation of subsurface conditions between field explorations is necessary. It should be noted that differing subsurface conditions may sometimes be present due to the random nature of deposition and the alteration of topography by past grading and /or filling. The nature and extent of any variations between the field explorations may not become fully evident until construction. If variations are observed at that time, it may be necessary to re- evaluate specific recommendations in this report and make appropriate changes. 3.1 Exploration Pits The seven previous explorations, EP -1 through EP -7, were excavated with a rubber- tired, tractor- mounted backhoe and the recent explorations, EP -8 through EP -16, were excavated with a track- mounted excavator. The pits permitted direct, visual observation of subsurface conditions. Materials encountered in the exploration pits were studied and classified in the field by an engineer from our firm. All exploration pits were backfilled immediately after examination and logging. Selected samples were then transported to our laboratory for further visual classification and testing, as necessary. 4.0 SUBSURFACE CONDITIONS Subsurface conditions at the project site were inferred from the field explorations accomplished for this study, visual reconnaissance of the site, and review of applicable geologic literature. As shown on the field logs, the exploration holes generally encountered fill and weathered /disturbed materials overlying glacially consolidated till, silt, and sand. Four units were distinguished based on age and/or mode of deposition. These units are described below from youngest (uppermost) to the oldest (lowermost), and are illustrated on the two schematic geologic cross sections (Figures 2, 3, and 4). 3 4.1 Stratigraphy Unit 1- Fill Fill (material not naturally placed) was encountered in EP -1, EP-4, EP -5, EP -9, EP -11, EP- 12, and EP -16 and generally consisted of loose, moist to wet, brown, silty, fme sand or soft to medium stiff, wet, brown, sandy silt. The fill materials were either placed directly over an old topsoil horizon or mixed within and in some cases included root debris. These fill materials vary in both quality and depth across the site, attaining a thickness of about 8 feet in EP-4. The quality and compaction of the fill materials was judged to be poor and is therefore unsuitable for structural support. ' Unit 2 - Weathered/Disturbed Zone Unit 2 materials were encountered in all of the exploration pits except EP -3, EP -9, and EP -12 and generally consisted of soft to stiff, moist to wet, mottled gray to brown, sandy silt to silty, fme sand with scattered gravels, and generally ranged in thickness from about 1 to 4 feet. Unit 2 materials were unsorted and unconsolidated, and generally appeared weathered and disturbed. These materials are interpreted to be colluvium, which is gravity transported material derived from upslgpe areas. These materials are also considered unsuitable for structural support. // ht; Unit 3 - Pre - Vashon Lodgement Till ( ?) Unit 3 sediments were encountered in all of the exploration pits except EP -1, EP -8, EP -9, and EP -13 and generally consisted of dense to very dense, moist, mottled brown, silty, fme sand matrix with an unsorted mixture of gravels. In EP -10, the lodgement till was highly weathered and was judged to be in a medium dense condition. The thickness of Unit 3 sediments ranged from about 1 foot in EP -7 to over 11 feet in EP -14, and were encountered as shallow as 3 feet in EP - 2, but in excess of 10 feet in EP-4. Unit 3 sediments have been tentatively interpreted to be pre - Vashon age lodgement till deposits, and appear to conformably overlie Unit 4 deposits. These sediments were deposited at the sole of the advancing ice sheet which resulted in a material possessing relatively high strength, low compressibility, and low permeability characteristics. Unit 3 sediments are considered suitable for structural support Unit 4 - Diamictic Silt Unit 4 sediments were encountered in all of the exploration pits except EP -14 and EP -15 at depths ranging from less than 4 feet to over 18 feet below the existing ground surface. Where encountered, Unit 4 deposits extended beyond the termination depth of all of the exploration pits. Unit 4 sediments generally consisted of hard, wet, blue -gray silt containing dropstones with interbeds of micaceous, fine sand and were locally diamictic (material containing an unsorted mixture of silt, clay, sand, and gravel). The fme-grained nature of Unit 4 and the presence of dropstones, localized diamictic zones, .and the gradational contact with the overlying till suggest that these sediments were deposited in a glaciolacustrine environment 4 ..w which formed as the advancing pre - Vashon ice sheet dammed northerly flowing drainages. Unit 4 sediments are considered suitable for structural support. 4.2 Hydrology Ground water was encountered in all of our exploration pits except EP -9, EP -10, and EP -13. The type of ground water encountered on the site consisted of a "perched" water table which forms during wet periods of the year atop the till and silt sediments (Units 3 and 4). Perched water occurs when surface: water infiltrates down through relatively permeable soils such as Units 1 and 2 and becomes trapped or "perched" atop a comparatively impermeable barrier such as the till and silt. An example of this occurs in the vicinity of Tract 99 and the proposed extension of South 139th Street. Seepage may also occur at random depths and locations in the non - uniform fill materials encountered on the site. It should be noted that fluctuations in the level of the ground water may occur due to the time of the year and variations in rainfall. 5 10 •. February 13, 1997 Revised November 13, 1998 Project No. KE96296A lbw II. GEOLOGIC HAZARDS AND MITIGATIONS The following discussion of potential geologic hazards is based on the geologic, slope, and ground /surface water conditions as observed and discussed herein. The discussion will be limited to seismic, landslide or mass - wasting, and erosion. It should be noted that during our , two episodes of subsurface exploration, there was no access to the steep slope area of Lot 8. As such, the geotechnical design recommendations for Lot 8, including setback requirements, may be amended in the future if a site - specific geotechnical study is performed. 5.0 SEISMIC HAZARDS AND RECOMMENDED MITIGATION Earthquakes occur in the Puget Lowland with great regularity. The vast majority of these events are small and are usually not felt by people. However, large earthquakes do occur as evidenced by the 1949, 7.2 magnitude event and the 1965, 6.5 magnitude event. The 1949 earthquake appears to have been the largest in this area during recorded history. More recently, the Puget Lowland experienced a moderate 5.4 magnitude event in the spring of 1996. Evaluation of earthquake return rates indicates that an earthquake of the magnitude between 5.5 and 6.0 likely will occur within the next 8 to 12 years. A magnitude 7.2 earthquake is considered to be a 100 -year event by King County. The subject property is bounded by two significant fault zones. Approximately 7.5 miles to w.. the north is the west trending Seattle fault. About 8.4 miles to the southwest is the north - northwest trending Tacoma fault. The Seattle and Tacoma fault zones are interpreted to be thrust faults with steep dips (60° to 70 °) near the surface which flatten to 17° to 25° at depth. The Seattle and Tacoma faults are part of a series of surface manifestations of a north - directed thrust sheet underlying the Puget Sound region. A recurrence interval for movement along these two faults has not been conclusively determined but is estimated to be in the range of thousands of years (Pratt, 1995). The most recent movement is interpreted to have occurred over 1,000 years ago. Generally, there are four types of potential geologic hazards associated with large seismic events: 1) surficial ground rupture; 2) seismically induced landslides; 3) liquefaction; and 4) ground motion. The potential for each of these hazards to adversely impact the proposed project is discussed below. 6 5.2 Seismically Induced Landslides The fill material and the weathered/disturbed zone (Units 1 and 2), are considered to have a moderate potential for seismically induced failure due to their loose condition, high moisture content, high percentage of fine - grained material, and location on steep slopes. The steep slopes on the southeast corner of Lot 6 and on the east side of Lots 6 and 7 are interpreted to have a high potential for seismic induced movement due to the presence of medium dense ,sediments, fill/disturbed soils, and evidence of past movement. Because of the potential risk of landslides occurring in these sediments, earthwork and construction procedures and setbacks, described in the Design Recommendations section of this report, must be implemented in the 4evelopment of the site. Landslide hazard mitigation, as presented in section 6.1, Mitigation, must also be implemented. Following completion of the development according to the recommendations included herein, and others that may be presented in future studies and at the time of construction, the potential for failure can be substantially mitigated. 5.3 Liquefaction 5.1 Surficial Ground Rupture Generally, the largest earthquakes which have occurred in the Puget Sound/Seattle area are sub - crustal events with epicenters ranging from 50 to 70 kilometers in depth. Therefore, it is our opinion, based on existing geologic data, that the risk of surface rupture impacting the proposed project is low. The encountered bearing soils (Units 3 and 4) have a low potential for liquefaction due to the consolidated nature of the dense lodgement till and hard diamictic silt. Units 1 and 2 will be substantially removed and /or mitigated during construction such that they will present little to no liquefaction potential. 5.4 Ground Motion Based on the site stratigraphy and visual reconnaissance of the site, it is our opinion that any earthquake damage to proposed structures, when founded on, and keyed into, a suitable bearing strata, as recommended in the Design Recommendations section of this report, would be caused by the intensity and acceleration associated with the event and not any of the above impacts. Structural design of the buildings should follow the latest UBC standards and take into consideration stress from seismically induced earth shaking. 6.0 LANDSLIDE HAZARDS AND MITIGATION The potential landslide or mass- wasting risk can be divided into two depth categories; shallow and deep. The potential shallow landslide risk would involve Units 1 and 2, and is considered to be moderate due to the presence of near - surface ground water and the unconsolidated nature of the materials. However, the steep slope areas of Lots 7 and 8 and the southeast corner of Lot 6 are considered to have a high risk of shallow landslides. 7 The potential deep landslide risk would involve Units 3 and 4, and is generally considered to be low primarily due to the consolidated nature of the lodgement till and diamictic silt units. However, the steep downward slope located on the east side of Lot 7 the southeast comer of Lot 6, and possibly the east side of Lot 8 has a high risk of slope movement. This is due to the medium dense condition of sediments observed in EP -9, the observation of bowed and downed trees on the slope, evidence of past movement in the vicinity of Lot 7, and the steep cut at the base of the slope near Lots 6 and 7. Therefore, a minimum building setback of 25 feet from the top of this slope as delineated on Figure 1 should be followed to reduce the risk of potential structural damage should future movement occur. Footings for this lot should also be embedded in dense /very stiff natural sediments as recommended in Section 11.0, Foundations. Other recommendations for slope grading, drainage and vegetation, as described in this report, also apply. 6.1 Mitigation It must be understood that our recommendations are offered to reduce the risk of slope movement and to mitigate the risk of damage to the homes if slope movement should occur. Our recommendations do not eliminate the risk of future movement. With the owner's understanding and acceptance of the inherent risks associated with development on slopes, we recommend' the following mitigation measures. 1. Surface drainage and collected ground water should be controlled and directed away from or to the bottom of sloping areas. All storm water from impermeable surfaces should be collected and tightlined into suitable storm water drainage systems. 2. At no time should fill be placed on or above steep slopes. Grading on or around slopes should be reviewed by Associated Earth Sciences, Inc. (AESI) prior to design completion. Uncontrolled fill near or over tops of slopes may promote landslides or debris flows. 3. The toes of steep slopes should not be undercut, unless a suitable retaining structure is constructed. 7.0 EROSION HAZARDS AND MITIGATION The encountered surficial sediments, as well as sediments at depth, possess a high potential for erosion, even on gentle to moderate sloping areas, when subjected to concentrated flows. To mitigate the erosion hazard potential and off -site sediment transport, we would recommend the following: 1. All storm water from impermeable surfaces, including roadways and roofs, should be tightlined into approved storm water facilities. Uncontrolled 8 discharge from the impermeable surfaces should not be allowed to flow across the site sediments. 2. Temporary sediment catchment facilities should be constructed around all catch basins to intercept sediment eroded during the construction phases of the proposed project. 3. Temporary check dams should be used along storm water drainages. Silt fences meeting King County standards should be placed along the lower elevations of disturbed areas. 4. Soils which are to be reused around the site should be stored in such a manner as to reduce erosion. Protective measures may include, but are not necessarily limited to, covering with plastic sheeting, the use of low stockpiles in flat areas, or the use of hay bales /silt fences. 5. Large -scale clearing should be avoided and as much of the natural vegetation on the slopes as is possible should be left intact. Construction should proceed during drier periods of the year and areas stripped of natural vegetation during construction should be replanted as soon as possible or otherwise protected. 6. If construction occurs after November 1 and before April 1, exposed ground should be covered with mulch and additional temporary drainage control may be recommended, as necessary. February 13, 1997 Revised November 13, 1998 Project No. KE96296A M. DESIGN RECOMMENDATIONS 8.0 INTRODUCTION Our exploration indicates that, from a geotechnical standpoint, the parcel is suitable for the proposed development provided the risk.s discussed are, accepted and the recommendations contained herein are properly followed. The existing fill soils, and the materials . in the weathered/disturbed su ort. The de th to bearing strata in our exploration its varied from about for foundation support. zone as g described herein, are not P p considered suitab out 3 feet to over 10 -1/2 feet below the existing ground surface but may be even deeper in some areas. It is anticipated that proposed excavations for daylight basements will remove much of the unsuitable soil from the building footprints. Therefore, conventional spread footings keyed into, and bearing on, firm, unyielding, natural sediments, or properly placed structural fill, will be suitable for foundation support of the residences. If basement structures are not utilized, or where basement excavations do not penetrate to bearing soil, it will likely be necessary to deepen foundations to suitable bearing soil. Lot 7, and possibly Lot 8 may require deep foundation systems. t d ,75 Since steep slopes and muddy soil conditions prevented excavator access to Lot 8, the depth to bearing strata and setback requirements is unsure for this lot. Additional explorations, prior to or during clearing for Lot 8, should be preformed to further evaluate geotechnical design parameters. 9.0 SITE PREPARATION Old foundations that may be encountered on the site, which are under building areas or not part of future plans, should be removed. Any buried utilities should be removed or relocated if they are under building areas. The resulting depressions should be backfilled with structural fill as discussed under the Structural Fill section. Site preparation of planned building and road/parking areas should include removal of all trees, brush, debris, and any other deleterious material. Additionally, the upper organic topsoil should be removed and the remaining roots grubbed. Areas where loose, surficialsoils exist due to, grubbing operations should be considered as fill to the depth of disturbance and treated as subsequently recommended for structural fill 'placement. • Existing fill and soft silts should be stripped down to the underlying medium dense or medium stiff, natural soils. Since the density of the soil is variable, random soft pockets may exist and the depth and extent of stripping can best be determined in the field by the geotechnical 10 engineer or engineering geologist. When overexcavation and stripping is completed, we recommend that road and parking areas be proofrolled with a fully loaded, tandem axle dump truck to identify any remaining soft spots. Soft areas should be further overexcavated and backfilled with approved structural fill. In some roadway or driveway areas, such as near exploration pit EP-4, the fill and soft sediment thickness may be too thick to economically remove and replace. Provided the owner /developer understands and accepts the risk associated with having unconsolidated fill and natural sediments underlying these areas of the development, an alternative methodology may be utilized. This would involve overexcavating a minimum of two (2) feet of the unsuitable soils, placing a high strength, woven geotextile fabric such as AMOCO 2002 or approved equivalent, and backfilling with approved structural fill. The geotextile fabric should be placed as per manufacturer's recommendations. The structural fill should be placed in accordance with the recommendations presented in the Structural Fill section of this report. Prior to paving, all roadways should be proofrolled as described above to identify any soft or yielding areas. The geotechnical engineer or his representative should be present during the proofrolling. All unsuitable areas should be further overexcavated and backfilled with structural fill. This methodology will substantially reduce settlement and improve the usable lifespan of the asphalt or concrete pavement surfaces but will not eliminate problem areas. As such, periodic maintenance should be planned for these areas. The on -site soils contain a high percentage of fine- grained material which makes them extremely, moisture- sensitive and subject to disturbance when wet. The contractor must use care during site preparation and excavation operations so that the underlying soils are not softened. If disturbance occurs, the softened soils should be removed and the area brought to grade with structural fill. Consideration should be given to protecting access and staging areas with an appropriate section of crushed rock or Asphalt Treated Base (ATB). If crushed rock is considered for the access and staging areas, it should be underlain by engineering stabilization fabric to reduce the potential of fine - grained materials pumping up through the rock and turning the area to mud. The fabric will also aid in supporting construction equipment, thus reducing the amount of crushed rock required. We recommend that at least 10 inches of rock be placed over the fabric; however, due to the variable nature of the near - surface soils and differences in wheel loads, this thickness may have to be adjusted by the contractor in the field. 10.0 STRUCTURAL FILL Grading plans have not been finalized at this time; however, it is anticipated that ,some structural fill will be necessary to establish desired grades. All references to structural fill in this report refer to subgrade preparation, fill type, placement and compaction of materials as discussed in this section. 11 If fill is to be placed on slopes steeper than 5H:1V (Horizontal:Vertical), the base of the fill should be tied to firm, stable subsoil by appropriate keying and benching which would be established in the field to suit the particular soil conditions at the time of grading. The keyway will act to embed the toe of the new fill into the hillside. Generally, the keyway for hillside fills should be at least 8 feet wide and cut into the lower, dense or stiff, natural sediments. Level benches would then be cut horizontally across the hill, following the contours of the slope. No specific width is required for the benches, although they are usually a few feet wider than the dozer being used to cut them. All fills proposed over a slope should be reviewed by our office prior to construction. After overexcavation/stripping has been performed to the satisfaction of the geotechnical engineer /engineering geologist, the exposed ground surface should be recompacted to at least 90 percent of the modified Proctor maximum density using ASTM:D 1557 as the standard. If the subgrade contains too much moisture, adequate recompaction may be difficult or impossible to obtain and should probably not be attempted. In lieu of recompaction, the area to receive fill should be blanketed with washed rock or quarry spalls to act as a capillary break between the new fill and the wet subgrade. Where the exposed ground remains soft and further overexcavation is impractical, placement of an engineering stabilization fabric may be necessary to prevent contamination of the free - draining layer by silt migration from below. After recompaction of the exposed ground is tested and approved, or a free - draining rock course is laid, structural fill may be placed to attain desired grades. Structural fill is defmed as non - organic soil, acceptable to the geotechnical engineer, placed in maximum 8 -inch loose lifts with each lift being compacted to a minimum of 95 percent of the modified Proctor maximum density using ASTM:D 1557 as the standard. In the case of roadway and utility trench filling, the backfill should be placed and compacted in accordance with current municipal codes and standards. The top of the compacted fill should extend horizontally outward a minimum distance of 3 feet beyond the location of the perimeter footings or roadway edge before sloping down at an inclination no steeper than 2H:1V. The contractor should note that any proposed fill soils must be evaluated by AESI prior to their use in fills. This would require that we have a sample of the material 48 hours in advance to perform a Proctor test and determine its field compaction standard. Soils in which the amount of fine - grained material (smaller than No. 200 sieve) is greater than approximately 5 percent (measured on the minus No. 4 sieve size) should be considered moisture - sensitive. Use of moisture - sensitive soil in structural fills should be limited to favorable dry weather and dry subgrade conditions. The on -site soils contained significant amounts of silt, are considered to be extremely moisture - sensitive, and were well above their optimum moisture content at the time of our field exploration. Even during summer months, it is likely that the on -site soils would be too wet to compact for structural fill. In addition, construction equipment traversing the site when on -site soils are wet can cause considerable disturbance. If proper compaction cannot be obtained, a select import material consisting of a clean, free - draining gravel and /or sand should be used. Free - draining soil is defmed as soil containing less than 5 percent passing the No. 200 sieve, based on the minus No. 4 sieve fraction. 12 1 A representative from our firm should inspect the stripped subgrade and be present during placement of structural fill to observe the work and perform a representative number, of in- place density tests. In this way, the adequacy of the earthwork may be evaluated as filling progresses and any problem areas may be corrected at that time. It is important to understand that taking random compaction tests on a part-time basis will not assure uniformity or acceptable performance of a fill. As such, we are available to aid the owner in developing a suitable monitoring and testing program. 11.0 FOUNDATIONS Spread footings may be used for building support for Lots 1 through 5, 9 through 12, and possibly Lots 6, 7, and 8 when founded on or embedded in dense natural soils of Units 3 or 4, or structural fill placed as previously discussed. We recommend that an allowable bearing pressure of 2,000 pounds per square foot (psf) be utilized for foundation design purposes, including both dead and live loads. An increase of one -third may be used for short-term wind or seismic loading. For Lots 1 through 5, and Lots 6 through 8 if spread footings are, determined to be suitable, the perimeter footings must be embedded a minimum of 18 inches into the dense bearing soils. All perimeter footings should be buried at least 18 inches into the surrounding soil for frost protection; interior footings require only 12 inches burial. To limit settlements, all footings should have a minimum width of 14 inches for one -story structures with 2 inches of width added for each additional story. For Lots 6, 7, and 8, a 25 -foot building setbackmeasured from the outside footing edge to the top of the steep slope is .recommended from the top of slope line shown on Figure 1. , If it is not feasible to excavate deep enough to embed the foundations into the dense bearing soils and achieve the setback recommended above, a deep foundation may be required . Drilled concrete piers or auger cast -in- place piles may be 'used in this case. We recommend that 18 -inch diameter piers /piles with a minimum 12 feet of embedment into the medium dense sands be utilized. When suitably reinforced, the piers /piles will be capable of supporting loads on the order of 15 tons per pile. Allowable design loads may be increased by one -third for short term wind or seismic loading. Anticipated settlfinent of approved, pier /pile supported structures should be less than 1 inch. 11 .1 Pile/Pier Inspections L. The actual total length of each pile may be adjusted in the field based on required capacity and conditions encountered during drilling. Since completion of the pile takes place below ground, the judgment and experience of the geotechnical engineer or his field representative must be used as a basis for determining the required penetration . and acceptability of each pile. Consequently, use of the presented pile capacities in the design requires that all piles be inspected by a qualified geotechnical engineer or engineering geologist from our firm who can interpret and collect the installation data and examine the contractor's operations. AESI, acting as the owner's field representative, would determine the required Iengths of the piles and keep records of pertinent installation data. A final summary report would then be distributed following completion of pile installation. 13 It is our understanding that a crawl space type construction may be used for portions of homes built on slopes. Construction of the crawl space should include covering the soil below the floor system with a moisture .barrier to reduce dampness. It is our understanding that within basement or garage areas the floors will be slab -on- grade. Slabs may be cast over medium dense /medium stiff natural ground or approved structural fill. Where moisture intrusion through the slab is to be controlled, the slab subgrade should be covered with 4 inches of pea gravel to act as a capillary break. The pea gravel should then be �., covered by a plastic moisture barrier. A 2 -inch layer of sand may then be placed atop the moisture barrier to aid in the curing of concrete and to help protect the plastic. rir low wr It should be noted that the area bounded by lines extending downward at 111:1V from any footing must not intersect another footing or intersect a filled area which has not been compacted to at least 95 percent of ASTM:D 1557. In addition, a 1.5H:1V line extending down from any footing must not daylight because sloughing or raveling may eventually undermine the footing. Thus, footings should not be placed near the edge of steps or cuts in the bearing soils. Anticipated settlement of footings founded on medium dense natural sediments or approved structural fill should be on the order of 1 inch. However, disturbed soil not removed from excavations prior to footing placement could result in increased settlements. All footing areas must be inspected by AESI prior to placing concrete to verify that the design bearing capacity of the soils has been attained and that construction conforms with the recommendations contained in this report. Such inspections may also be required by the governing municipality. Perimeter footing drains should be provided as discussed under the section on Drainage Considerations. 12.0 FLOOR SUPPORT 13.0 LATERAL WALL PRESSURES All backfill behind walls or around foundation units should be placed as per our recommendations for structural fill and as described m this section of the report. Horizontally backfilled walls which are free to yield laterally at least 0.1 percent of their height, may be designed using an equivalent fluid equal to 40 pounds per cubic foot (pcf). Fully restrained, horizontally backfilled rigid walls which cannot yield should be designed for an equivalent fluid of 60 pcf. Surcharges from sloping ground, adjacent footings, heavy construction equipment, floor leads, or sloping ground must be added to the above values. Slopes above retaining walls shall be graded to no steeper than 3H:1V. The lateral pressures presented above are based on the conditions of a uniform, horizontal backfill consisting of imported sand and gravel compacted to 90 percent of ASTM:D 1557 with a blanket drain of washed drain rock immediately adjacent to the wall. In lieu of placing a blanket 14 drain, a select import of free - draining sand and gravel may be used to backfill the wall. Free - draining soil is defined as soil containing less than 5 percent passing the No. 200 sieve, based on the minus No. 4 sieve fraction. A sieve analysis of proposed wall backfill is necessary to determine whether or not proposed fills are free draining. A higher degree of compaction (above 90 percent) is not recommended for the wall backfill as this will increase the pressure acting on the wall. A lower compaction may result in settlement behind the wall. As such, testing of the in -place density of the wall backfill is recommended. 14.0 DRAINAGE CONSIDERATIONS As indicated previously, both shallo perched water and 2ronnd water within the sand beds of IJ ! m 4. auil 1.i eredSuring construction. Traffic across the on -site sons, when they are damp or wet, will result in disturbance onie otherwise firm stratum. Therefore, prior to site work and construction, the contractor should be prepared to provide drainage as necessary. This will likely be required even during the summer months. g i c All retaining and perimeter footing walls should be provided with a drain at the footing elevation. Drains should consist of rigid, perforated, PVC pipe surrounded by washed pea gravel. The level of the perforations in the pipe should be set approximately 2 inches below the bottom of the footing and the drains should be constructed with sufficient gradient to allow gravity discharge away from the building. In addition, if select, free - draining backfill is not used, retaining walls should be lined with a minimum 12 -inch thick washed gravel blanket provided over the full- height of the wall and which ties into the footing drain. Roof and surface runoff should not discharge into the footing drain system but should be handled by a separate, rigid, tightline drain. In planning, exterior grades adjacent to walls should be sloped downward away from the structure to achieve surface drainage. Depending on site and ground water conditions at the time of construction, it may be necessary to install an interceptor drain along the upper elevations of some of the lots prior to beginning site work. At a�minmum,„ it is recommended that • drai and ibl yard dr- 'ns should be installe• • the u' u` o o s 9, and 1 The interceptor rain should consist of an 8 -inch wide trenc w is is excavate • a minimum of 1 foot into the lower, dense, relatively impermeable soils. A rigid, perforated, PVC pipe should be placed near the bottom of the trench, embedded in washed drain rock. In addition, the pipe should have sufficient slope to drain by gravity, and the water should be directed into approved storm drainage facilities. Since drainage issues are a major concern on this site, it ma neresry to add drainage provisions under the roadway in order to provide a long -term, usable roadway and& mitigate water flow from the upper portion of the property to the lower portion) We recommend that contingencies be allowed for these potential drainage improvements. However, a final determination as to the actual need or the raiinage measures will be made at the time of construction. 15 L • 15.0 PROJECT DESIGN AND CONSTRUCTION MONITORING At the time of this report, building locations and elevations, site grading, structural plans, and construction methods have not been finalized. Therefore, the recommendations presented herein are preliminary. We are available to provide additional geotechnical consultation as the project design develops and possibly changes from that upon which this report is based. We recommend that AESI perform a geotechnical review of the plans prior to final design completion. In this way, our earthwork and foundation recommendations may be properly interpreted and implemented in the design. We are also available to provide geotechnical engineering and monitoring services during construction. The integrity of the foundation depends on proper site preparation and construction procedures. In addition, engineering decisions may have to be made in the field in the event that variations in subsurface conditions become apparent. We have enjoyed working with you on this study and are confident that these recommendations will aid in the successful completion of your project. If you should have any questions, or require further assistance, please do not hesitate to call. Sincerely, ASSOCIATED EARTH SCIENCES, INC. Kirkland, Washington Joseph B. Clare, E.I.T. Staff Geotechnical Engineer Gary A. Principal JBC /Id/mb KE96296A4 11/1/98 mb - W97 ers, P.G. 16 Bruce L. Blyton, P.E. Associate Engineer ////5/?6 REFERENCE or Pratt, T.L., 1995, The Puget Lowland Thrust Sheet: Presentation to the October meeting of the Northwest Geological Society, Seattle, Washington. m • JBC /mb KE96296A4 11/1/98 mb - W97 17 • �.J 11 . ORNEMAY ACCESS FOR LOTS 9 t 10 ONLY FROM SO. 140TH STREET. • (RAYED) LEGEND .MH M -27'. A A' Cross section ter' agirest so4 ad4� / \ 24,o39 S.I. - - -. L - -- - ■ Approxknate location of exploration pit excavated 1996 rid Approxknate location of exploration pit excavated 1991 1 REFERENCE JOHN B. FREL, JBMF CONSULTING ENGINEER, JULY 1998. ASSOCIATED EARTH SCIENCES, INC (PAYED) ; r- % ` �` \ / / - �\ MH M-ZY r � Yp ��� o • �'— • _ __ _ r te ', 0 SITE AND EXPLORATION PLAN FOSTER RIDGE TUKWILA, WASHINGTON 1 100 SCALE IN FEET NORTH 200 FIGURE 1 DATE 7/98 PROJ. NO. KE96296A SOUTH A 250 — I w w z z 0 1- a W J W 150 200 100 FILL EP -7 LEGEND , ``ir2 -- - -: -` e Uiyj 4 � - \ � �� \ UNIT 1 - FM UNIT 2 - Weathered /Disturbed Zone UNIT 3 - Pre- Vashon Till UNIT 4 - Pre - Vashon Silt EP -5 PAL UNi _ UNIT3 UNIT 4 0 • 25 50 APPROXIMATE SCALE IN FEET HORIZONTAL AND VERTICAL FIGURE 2 SCHEMATIC GEOLOGIC CROSS SECTION EP -1 NORTH A' FOSTER RIDGE TUKWILA, WASHINGTON PROJECT NO. G96296A DECEMBER 1996 ASSOCIATED EARTH SCIENCES, INC f WEST f B 250 200- Ui ILL z z O Q Lai 150 - EP -5 uter nu. UNIT 3 UNIT 4 UNIT 1 - All UNIT 2 - Weathered /Disturbed Zone UNIT 3 - Pre- Vashon Till UNIT 4 - Pre - Vashon Silt LEGEND EP-4 0 25 50 SCALE IN FEET UNIT 1 - FLL. IgIt — UNIT 4 -? FIGURE 3 SCHEMATIC GEOLOGIC CROSS SECTION UNIT ? - - 1 ` FILL EP -9 FOSTER RIDGE TUKWILA, WASHINGTON PROJECT NO. G96296A DECEMBER 1996 EAST B ' ASSOCIATED EARTH SCIENCES, INC —250 - 200 0 m Z TI m -150 100 SOUTHWEST C 225 - 200 - 175 - 150 - 125 -0 EP -15 - _UNl UNIT 3 LEGEND EP -3 UNIT 2 — - UNIT 3 -/-- - - UNIT 4 UNIT 1 - Fill UNIT 2 - Weathered /Disturbed Zone UNIT 3 - Pre - Vashon till UNIT 4 - Pre - Vashon Silt EP -8 UN /T 4 0 25 50 SCALE IN FEET Lot 6 EP -9 ? _UNIT 1 UN/T FIGURE 4 SCHEMATIC GEOLOGIC CROSS SECTION NORTHEAST C I 225 200 -175 150 125 FOSTER RIDGE TUKWILA, WASHINGTON PROJECT NO. G96296A JANUARY 1997 ASSOCIATED EARTH SCIENCES, INC ibJ tri 0 5 — 10 15 NUMBER EP -1. NUMBER EP -2 0 5 10 15 EXPLORATION PIT LOG SEDIMENT DESCRIPTION SEDIMENT DESCRIPTION Subsurface conditions depicted represent our observations at the time and location of this exploratory hole, modified by geologic interpretation, engineering analysis, and judgment They are not necessarily representative of other times and locations. We will not accept responsibility for the use or interpretation by others of information presented on this log. FOSTER RIDGE TUKWILA, WASHINGTON G96296A JANUARY 1997 ASSOCIATED EARTH SCIENCES, INC Loose, wet, dark brown, silty, fine sand with occasional gravel, scattered roots. (Fill) Overlies approximately 1' thick red -brown soil horizon. (Unit 1) Medium stiff to stiff, wet, mottled grey, sandy silt to silty, fine sand, occasional gravel. Weathered/ disturbed zone. Minor to moderate water Loose to medium dense, wet, mottled brown, silty, fine sand with gravel, seepage at approximately 5'. (Unit 2) Very stiff becoming hard, moist to wet, grey, sandy silt to silty, fine sand. Grades to hard, wet, blue -grey silt with trace to some clay, occasional dropstones. Some brecciated /slickensided surfaces. Diamictic lenses and interbeds of fine sand from 12' -14'. (Unit 4) r Dense becoming very dense, moist, mottled brown, silty, fine sand matrix with gravel and cobbles, unsorted. (Lodgement Till - Unit 3) BOH @ 14' Note: Minor to moderate seepage at approximately 5'. No caving. ibJ tri 0 5 — 10 15 NUMBER EP -1. NUMBER EP -2 0 5 10 15 EXPLORATION PIT LOG SEDIMENT DESCRIPTION SEDIMENT DESCRIPTION Subsurface conditions depicted represent our observations at the time and location of this exploratory hole, modified by geologic interpretation, engineering analysis, and judgment They are not necessarily representative of other times and locations. We will not accept responsibility for the use or interpretation by others of information presented on this log. FOSTER RIDGE TUKWILA, WASHINGTON G96296A JANUARY 1997 ASSOCIATED EARTH SCIENCES, INC Topsoil. Loose to medium dense, wet, mottled brown, silty, fine sand with gravel, —� unsorted. Weathered /disturbed zone. (Unit 2) r Dense becoming very dense, moist, mottled brown, silty, fine sand matrix with gravel and cobbles, unsorted. (Lodgement Till - Unit 3) Hard, moist, blue -grey, silt, diamictic upper 1'. 2'+ boulder at approximately 7'. (Unit 4) BOH' 0 12' Note: Minor seepage at approximately 2' -3'. No caving. • ibJ tri 0 5 — 10 15 NUMBER EP -1. NUMBER EP -2 0 5 10 15 EXPLORATION PIT LOG SEDIMENT DESCRIPTION SEDIMENT DESCRIPTION Subsurface conditions depicted represent our observations at the time and location of this exploratory hole, modified by geologic interpretation, engineering analysis, and judgment They are not necessarily representative of other times and locations. We will not accept responsibility for the use or interpretation by others of information presented on this log. FOSTER RIDGE TUKWILA, WASHINGTON G96296A JANUARY 1997 ASSOCIATED EARTH SCIENCES, INC r BOH 0 14' Note: Moderate water flow at approximately 14'. No caving. Soft to medium stiff, wet, brown, sandy silt to silty, fine sand, some root debris. (Fill - Unit 1) Overlies approximately 11' thick topsoil horizon. Soft to medium stiff, saturated, mottled, blue -grey, sandy silt to silty, fine sand, occasional gravel, unsorted. Weathered /disturbed zone. • Water seepage at approximately 8'. (Unit 2) • Dense becoming very dense, moist, mottled brown, silty, fine sand matrix with gravel and cobbles, unsorted. (Lodgement Till - Unit 3) . Very stiff to hard, wet, blue -grey silt with fine sand interbeds. Minor • seepage at approximately 8'. (Unit 4) BOH 0 15' Note: Minor seepage at approximately 8'; no caving. IrJ hri i.r Irr NUMBER 0 5 10 15 NUMBER EP -4 0 5 10 15 EP -3 EXPLORATION PIT LOG SEDIMENT DESCRIPTION SEDIMENT DESCRIPTION Subsurface conditions depicted represent our observations at the time and location of this exploratory hole, modified by geologic interpretation, engineering analysis, and judgment They are not necessariy representative of other times and locations. We wll not accept responsbifity for the use or interpretation by others of information presented on this log. FOSTER RIDGE TUKWILA, WASHINGTON G96296A JANUARY 1997 A. ASSOCIATED EARTH SCIENCES, INC Topsoil. r Dense becoming very dense, moist, mottled brown, silty, fine sand matrix with gravel and cobbles, unsorted. (Lodgement Till - Unit 3) Hard, moist to wet, blue -grey, silt with interbeds of fine sand. Some brecciated, slickensided surfaces. Moderate water flow from fine sand. Dense at approximately 14'. (Unit 4) Soft to medium stiff, wet, brown, sandy silt to silty, fine sand, some root debris. (Fill - Unit 1) Overlies approximately 11' thick topsoil horizon. Soft to medium stiff, saturated, mottled, blue -grey, sandy silt to silty, fine sand, occasional gravel, unsorted. Weathered /disturbed zone. • Water seepage at approximately 8'. (Unit 2) • Dense becoming very dense, moist, mottled brown, silty, fine sand matrix with gravel and cobbles, unsorted. (Lodgement Till - Unit 3) . Very stiff to hard, wet, blue -grey silt with fine sand interbeds. Minor • seepage at approximately 8'. (Unit 4) BOH 0 15' Note: Minor seepage at approximately 8'; no caving. IrJ hri i.r Irr NUMBER 0 5 10 15 NUMBER EP -4 0 5 10 15 EP -3 EXPLORATION PIT LOG SEDIMENT DESCRIPTION SEDIMENT DESCRIPTION Subsurface conditions depicted represent our observations at the time and location of this exploratory hole, modified by geologic interpretation, engineering analysis, and judgment They are not necessariy representative of other times and locations. We wll not accept responsbifity for the use or interpretation by others of information presented on this log. FOSTER RIDGE TUKWILA, WASHINGTON G96296A JANUARY 1997 A. ASSOCIATED EARTH SCIENCES, INC IrJ hri i.r Irr NUMBER 0 5 10 15 NUMBER EP -4 0 5 10 15 EP -3 EXPLORATION PIT LOG SEDIMENT DESCRIPTION SEDIMENT DESCRIPTION Subsurface conditions depicted represent our observations at the time and location of this exploratory hole, modified by geologic interpretation, engineering analysis, and judgment They are not necessariy representative of other times and locations. We wll not accept responsbifity for the use or interpretation by others of information presented on this log. FOSTER RIDGE TUKWILA, WASHINGTON G96296A JANUARY 1997 A. ASSOCIATED EARTH SCIENCES, INC apo err ry li• 0 5 10 MINN 15 NUMBER EP -5 0 NUMBER EP -6 5 — SIM 10 15 EXPLORATION PIT LOG SEDIMENT DESCRIPTION SEDIMENT DESCRIPTION Subsurface conditions depicted represent our observations at the time and location of this exploratory hole, modified by geologic interpretation, engineering analysis, and judgment They are not necessarily representative of other times and locations. We will not accept responsibility for the use or interpretation by others of information presented on this log. FOSTER RIDGE TUKWILA, WASHINGTON G96296A AS1 JANUARY 1997 ASSOCIATED EARTH SCIENCES, INC Topsoil. Medium stiff, moist to wet, mottled brown, sandy silt to silty, fine sand, scattered gravel. Weathered /disturbed zone. (Unit 2) Dense becoming very dense, moist, mottled brown, silty, fine sand matrix with gravel and cobbles, unsorted. (Lodgement Till - Unit 3) T Hard, wet, blue - grey, silt with fine sand interbeds and diamictic lenses. Gravel zone at approximately 12' with moderate water flow. (Unit 4) Dense becoming very dense, moist, mottled brown, silty, fine sand matrix with gravel and cobbles, unsorted. (Lodgement Till - Unit 3) BOH 0 15' Note: Moderate water flow at approximately 12'; no caving. apo err ry li• 0 5 10 MINN 15 NUMBER EP -5 0 NUMBER EP -6 5 — SIM 10 15 EXPLORATION PIT LOG SEDIMENT DESCRIPTION SEDIMENT DESCRIPTION Subsurface conditions depicted represent our observations at the time and location of this exploratory hole, modified by geologic interpretation, engineering analysis, and judgment They are not necessarily representative of other times and locations. We will not accept responsibility for the use or interpretation by others of information presented on this log. FOSTER RIDGE TUKWILA, WASHINGTON G96296A AS1 JANUARY 1997 ASSOCIATED EARTH SCIENCES, INC Soft to medium stiff, wet, brown, sandy silt to silty, fine sand, some root debris. (Fill - Unit 1) Overlies approximately 1' thick topsoil horizon. Medium stiff, moist to wet, mottled brown, sandy silt to silty, fine sand, scattered gravel. Weathered /disturbed zone. (Unit 2) T Dense becoming very dense, moist, mottled brown, silty, fine sand matrix with gravel and cobbles, unsorted. (Lodgement Till - Unit 3) Hard, moist to wet, blue -grey, silt with fine sand interbeds. (Unit 4) BOH 0 14' Note: Minor to moderate water seepage at approximately 5'. No caving. apo err ry li• 0 5 10 MINN 15 NUMBER EP -5 0 NUMBER EP -6 5 — SIM 10 15 EXPLORATION PIT LOG SEDIMENT DESCRIPTION SEDIMENT DESCRIPTION Subsurface conditions depicted represent our observations at the time and location of this exploratory hole, modified by geologic interpretation, engineering analysis, and judgment They are not necessarily representative of other times and locations. We will not accept responsibility for the use or interpretation by others of information presented on this log. FOSTER RIDGE TUKWILA, WASHINGTON G96296A AS1 JANUARY 1997 ASSOCIATED EARTH SCIENCES, INC 0 5 10 15 NUMBER EP -7 5 10 15 NUMBER 0 EXPLORATION PIT LOG SEDIMENT DESCRIPTION SEDIMENT DESCRIPTION Subsurface conditions depicted represent our observations at the time and location of this exploratory hole, modified by geologic interpretation, engineering analysis, and judgment They are not necessariy representative of other times and locations. We will not accept responstarty for the use or interpretation by others of information presented on this log. FOSTER RIDGE TUKWILA, WASHINGTON G96296A JANUARY 1997 ASSOCIATED EARTH SCIENCES, INC Topsoil. Medium stiff, moist to wet, mottled brown, sandy silt to silty, fine sand, scattered gravel. Weathered /disturbed zone. (Unit 2) l Dense becoming very dense, moist, mottled brown, silty, fine sand matrix with gravel and cobbles, unsorted. (Lodgement Till — Unit 3) r Dense, wet, brown becoming blue —grey, fine sand, micaceous, overlying hard, moist to wet, blue —grey, silt, diamictic. Water seepage in sand lense. (Unit 4) BOH la 11' Note: Moderate water seepage at approximately 6'. No caving. Hole terminated due to boulder zone at 11'. 0 5 10 15 NUMBER EP -7 5 10 15 NUMBER 0 EXPLORATION PIT LOG SEDIMENT DESCRIPTION SEDIMENT DESCRIPTION Subsurface conditions depicted represent our observations at the time and location of this exploratory hole, modified by geologic interpretation, engineering analysis, and judgment They are not necessariy representative of other times and locations. We will not accept responstarty for the use or interpretation by others of information presented on this log. FOSTER RIDGE TUKWILA, WASHINGTON G96296A JANUARY 1997 ASSOCIATED EARTH SCIENCES, INC 7 Forest duff. I Soft, moist, brown, fine, sandy SILT; many roots to 1/4: diameter. (Fill - UNIT 1) Medium dense, moist, brown, silty, fine SAND with some medium sand zones. (UNIT 4) BOH @ 15' Note: No seepage; no caving. Pit located at top of slope; slope has bowed trees. 10 15 0 5 10 15 Number EP -8 _1 Forest duff. _1 Soft, moist, brown grading to gray, fine, sandy SILT. (UNIT 2) BOH @ 14' Note: Slight seepage at 5'; no caving. Number EP -9 Associated Earth Sciences, Inc. 911 Fifth Avenue, Suite 100 16, Kirkland, Washington 98033 Phone: 206 - 827 -7701 Fax: 206 - 827 -5424 EXPLORATION PIT LOG Stiff grading to very dense, moist, gray, silty, fine SAND with some fine to medium sand lenses; weathered 1 -1/2' to 5'. (UNIT 4) Subsurface conditions depicted represent our observation at the time and location of this exploratory hole, modified by geologic interpretation, engineering analysis, and judgment. They are not necessarily representative of other times and locations. We will not l aw accept responsibility for the use or interpretation by others of information presented on this log. Reviewed By Foster Ridge Tukwila, Washington Project No. G96296A December 1996 _ — Forest duff. r r 1 Forest duff. r Loose /soft, wet, dark brown grading to brown, silty, fine SAND to fine, sandy SILT. (UNIT 1 /UNIT 2) Medium dense becoming dense with depth, moist to wet, brown grading to gray, silty, fine SAND with some coarse sand, trace gravel. (UNIT 3) Dense, wet, gray, silty, fine SAND, trace gravel and dropstones. (UNIT 4) BOH @ 18' Note: Medium seepage at 5'; slight caving due to seepage. ii 10 15 it IMP ha ►r Yaw 0 0 5 _ 5 it 10 — . 15 Number EP -10 EXPLORATION PIT LOG Number EP -11 Subsurface conditions depicted represent our observation at the time and location of this exploratory hole, modified by geologic interpretation, engineering analysis, and judgment. They are not necessarily representative of other times and locations. We will not accept responsibility for the use or interpretation by others of information presented on this log. Associated Earth Sciences, Inc. 911 Fifth Avenue, Suite 100 Kirkland, Washington 98033 Phone: 206 - 827 -7701 Fax: 206 - 827 -5424 Reviewed By Foster Ridge Tukwila, Washington Project No. G96296A December 1996 ii 10 15 it IMP ha ►r Yaw 0 0 5 _ 5 it 10 — . 15 Number EP -10 EXPLORATION PIT LOG Number EP -11 Subsurface conditions depicted represent our observation at the time and location of this exploratory hole, modified by geologic interpretation, engineering analysis, and judgment. They are not necessarily representative of other times and locations. We will not accept responsibility for the use or interpretation by others of information presented on this log. Associated Earth Sciences, Inc. 911 Fifth Avenue, Suite 100 Kirkland, Washington 98033 Phone: 206 - 827 -7701 Fax: 206 - 827 -5424 Reviewed By Foster Ridge Tukwila, Washington Project No. G96296A December 1996 — Forest duff. T Soft, moist to wet, dark brown, silty, fine SAND, trace gravel; occasional dropstones to 9" diameter. (Fill - UNIT 1) Dense to very dense with depth, moist to wet, greenish -gray, silty, fine to medium SAND, trace gravel. (UNIT 3) Dense, moist, mottled brown, silty, fine SAND with some gravel. (UNIT 3) Very dense, moist, bluish -gray, silty, fine SAND to fine, sandy SILT with trace gravel and with lenses of fine sand with some gravel. (UNIT 4) BOH @ 15' Note: Slight seepage at 3' and 6'; no caving. ikr 10 15 10 15 ..• 0 5 Number EP -12 Number EP -13 Forest duff. Soft, moist to wet, dark brown grading to light brown, silty, fine SAND. (UNIT 2) Very dense, moist, light brown, silty, fine SAND with some dropstones. (UNIT 4) Grades to very hard, moist to wet, gray, silty, fine SAND to fine sandy SILT; some slickenside surfaces. (UNIT 4) BOH @ 18' Note: No seepage; no caving. Associated Earth Sciences, Inc. 911 Fifth Avenue, Suite 100 Kirkland, Washington 98033 Phone: 206- 827 -7701 Fax: 206 - 827 -5424 EXPLORATION PIT LOG Subsurface conditions depicted represent our observation at the time and location of this 'exploratory hole, modified by geologic 1r. interpretation, engineering analysis, and judgment. They are not necessarily representative of other times and locations. We will not accept responsibility for the use or interpretation by others of information presented on this log. Reviewed By Earj Foster Ridge Tukwila, Washington Project No. G96296A December 1996 --1 Forest duff. r • Loose, moist to wet, dark brown grading to light brown, silty, fine SAND. (UNIT 2) Dense to very dense, moist, light brown, silty, fine SAND. (UNIT 3) @ 12' to 13' lense of medium to coarse sand with silt. BOH @ 15' Note: Moderate to rapid seepage at 12'; no caving. d 15 kw Ir W 10 0 10 ar. 15 5 — Number EP -14 Forest duff. Loose becoming dense, moist, dark brown grading to light brown, silty, fine SAND. (UNIT 2) Very dense, moist, light brown, silty, fine SAND; brecciated. (UNIT 3) @ 8' to 9' lense of coarse sand and gravel. BOH @ 15' Note: Seepage at 1', 4', and 8'; no caving. © 12' to 12 -1/2' lense of very dense, moist, gray, silty, fine sand. Number EP -15 EXPLORATION PIT LOG Subsurface conditions depicted represent our observation at the time and location of this exploratory hole, modified by geologic interpretation, engineering analysis, and judgment. They are not necessarily representative of other times and locations. We will not accept responsibility for the use or interpretation by others of information presented on this log. Associated Earth Sciences, Inc. 911 Fifth Avenue, Suite 100 Kirkland, Washington 98033 Phone: 206 - 827 -7701 Fax: 206 - 827 -5424 Reviewed By Foster Ridge Tukwila, Washington Project No. G96296A December 1996 — Forest duff. T Soft/loose becoming dense, moist to wet, dark brown grading to light brown, mottled, silty, fine SAND to fine sandy SILT. (UNIT 1 /UNIT 2) Dense to very dense, moist, light brown, silty, fine SAND with some gravel with depth. (UNIT 3) @ 11' to 12' lense of brown medium sand. Very dense, moist to wet, brown, silty, fine SAND. (UNIT 4) BOH @ 16' Note: Slight seepage at 11' to 12'; no caving. ..; tow 5 15 tr. rr 10 • 15 lbw 0 10 _ Number EP -16 Number Subsurface conditions depicted represent our observation at the time and location of this exploratory hole, modified by geologic tar interpretation, engineering analysis, and Judgment. They are not necessarily representative of other times and locations. We will not accept responsibility for the use or interpretation by others of information presented on this log. Associated Earth Sciences, Inc. 911 Fifth Avenue, Suite 100 Kirkland, Washington 98033 Phone: 206 - 827 -7701 Fax: 206 - 827 -5424 EXPLORATION PIT LOG Reviewed By Foster Ridge Tukwila, Washington Project No. G96296A December 1996 C� — January 11, 1997 Mr. John B. Friel JBMF Consulting Engineer P.O. Box 27 Everett, WA 98206 Subject: Foster Ridge Traffic Impact Analysis Dear Mr. Friel: Thank you for asking Transportation Solutions, Inc. (TSI) to prepare a traffic analysis for the proposed residential subdivision in Tukwila, Washington. This letter summarizes the traffic analysis and presents the traffic and transportation information requested by the City of Tukwila. The purposes of this analysis are to identify traffic impacts related to trip generation and sight distances at intersections used by the occupants of the proposed project and, where appropriate, to outline programs and/or physical improvements to minimize or eliminate the effects of these impacts. Project Description Trip Generation and Distribution Transportation Solutions, Inc. 16310 NE 80th Street, Suite 100 Redmond, WA 98052 -3861 (206) 883-4134 (800) 2854134 FAX: (206) 867-0898 The proposed project is a residential development in the City of Tukwila. The project site is currently vacant and undeveloped. The project site is located at the end of South 139th Street. The project site is proposed to be developed into a 11 unit single - family subdivision. Access to the project site will be via South 139th Street. Attachment 1 illustrates the project location and Attachment 2 illustrates the site plan. The trip generation for the proposed project was calculated based on the trip rates presented in the Institute of Transportation Engineers (ITE) Trip Generation Report, 5th Edition. Based on these rates, the proposed project will generate approximately 135 daily trips, 15 trips during the PM peak hour, and 12 trips during the AM peak hour. A summary of trip generation is shown in Table 1. Vri-oot RECEIVED MAY 2 7 1997 COMMUNITY DEVELOPMENT Mr. John B. Friel Trip Types Gross Entering Exiting Daily 135 68 67 PM Peak Hour 15 10 5 AM Peak Hour 12 3 9 The trip distribution was developed based on existing and forecasted travel patterns. Vehicle trips generated by this project were traced through the adjacent street network to the intersections of South 140th Street/42nd Avenue South, South 137th Street /Macadam Road, South 133rd Street/Interurban Avenue, and South 133rd Street/SR 599 ramp. Attachment 3 shows the trip distribution and Attachment 4 shows the trip assignment. Sight Distance Page 2 Table 1. Trip Generation Summary January 11, 1997 The entering sight distance was measured at two intersections in the local street network to assure that vehicles traveling from the project could safely enter these intersections. The two locations were: South 139th Street/45th Avenue South, South 140th Street/42nd Avenue South and South 137th Street/Macadam Road. South 139th Street/45th Avenue South - Traffic entering this intersection from 139th Street must watch for approaching traffic from the north and south on 45th Avenue South. Field measurements indicate that there is approximately 170 feet of sight distance to the north, and approximately 205 feet of sight distance to the south. 45th Avenue South has a posted speed limit of 25 mile per hour (mph) and the average traveling speed of vehicles on this street appears to be equal to the posted speed. The safe entering sight distance (SESD) for a 25 mph road is approximately 380 feet; the safe stopping sight distance (SSSD) for 25 mph is approximately 150 feet. Due to the low traffic volumes on these street, the SSD is a more reasonable requirement for this intersection. The SSSD is met in both directions at this intersection. South 140th Street/42nd Avenue South - Traffic entering this intersection from South 140th Street must watch for approaching traffic from the north and south on 42nd Avenue South. 42nd Avenue South has a posted speed limit of 30 mph and the average traveling speed of vehicles on this street appears to be between 30 and 35 mph. The SESD for a 30 mph road is approximately 435 feet; for a 35 mph road, the SESD is 490 feet. Field measurements indicate that there is approximately 475 feet of sight distance to the north, and well over 600 feet of sight distance to the south. Based on the observed traveling speeds, 475 feet of sight distance to the north appears to be adequate for this intersection. TSI Transportation Solutions Inc. Mr. John B. Friel South 137th Street/Macadam Road - Traffic entering this intersection from South 137th Street must watch for approaching traffic from the north and south on Macadam Road. Field measurements indicate that there is approximately 295 feet of sight distance to the north, and approximately 370 feet of sight distance to the south. Macadam Road has a posted speed limit of 30 mph and the average traveling speed of vehicles on this street appears to be equal to the posted speed. The SESD for a 30 mph road is approximately 435 feet; the SSSD for 30 mph is approximately 200 feet. Thus, the SSSD requirement is met in both directions at this intersection, but the SESD requirement is not. No physical improvement options to improve the SESD were readily apparent. It is suggested that the number of traffic accidents at this intersection be monitored, and if a safety problem develops, signs warning of entering traffic should be installed along Macadam Road. Pedestrian Access City of Tukwila engineering staff have suggested that a pedestrian path be constructed as part of the proposed development. This path would extend from the project site along one side of South 139th Street/Macadam Road. The path is envisioned to be in the form of a widened, paved shoulder on the street with appropriate markings to indicate pedestrian travel. Based on the low volume of observed pedestrian traffic in this area, a pedestrian path does not appear to be warranted. It is suggested that the project sponsor meet with the City to discuss the need for such a path. I trust this letter addresses the concerns of the City concerning the traffic impacts of this project. If you, or City staff have any questions or require additional information, please contact our office at your convenience. Sincerely, Thang Tat Nguyen Transportation Engineer include: Attachments Page 3 January 11, 1997 TSI Transportation Solutions Inc. 4 'I S 144th St Attachment 1 Project Location Legend Traffic Signal -I— Stop Sign Foster Ridge 50 AD Q' b eD . DRIVEWAY ACCESS FOR LOTS fl * 10 ONLY IRON SO. 1401 511051. 5. 139TH p 5T. t (PA1t0 • • r' I.I I • . Z , a 0 o v .1.. 5.. 140TH 5T. /.•1rn• w , _ • / e. I v � �p►n , : 15Df R -4 - o N' ot ,, •. =7.270 s.r. ■ Deno S.F. r . - - - -_ �'...� .1. 1 ``.aw,.s�' -\ , - - -= _ 1 " '�.. ..... � 1 7 S.F. 1 j • q.-0---- 1 ' 1 �; �,SOO S.F. / 1_ 1 J 6.113 s4. \ w i ii o 1 1 '7 1 11 S.F. ` 1 1 I s .ra w 1 • v — r d r ; J.► . . (NOT OPeN) ' • • J -1 A 44 . . A A • . ►r1.. I 1 • I _•••71.. r ..- i / • i •1 C: 1 %oa 1 / / A u // /1. % i / / e / S. / / j / / •i j / \ 4 el 'war / , % 1' w /ill / / ` 1 Ift / / i / 7.336 SF. / O' / c?i , „ / % i 22 r ; / 4 1 i #......' 2 / 1.634 SFf 1 f/ 2 JI,it' ROAD �� wry• t Y► i TSI Transportation Solutions, Inc 40% S 144th St Attachment 3 Trip Distribution Legend Traffic Signal j— Stop Sign i Foster Ridge TSI Transportation Solutions, Inc ff ILA Ill 'It MEI ITN Fri C4 S 139th St S 140th St S 144th St S 137th St 1t ILI Attachment 4 Project Trip Assignments Legend Traffic Signal —IL— Stop Sign FT.1 tl Daily Trips AM Peak Trips PM Peak Trips INA North Foster Ridge WETLAND DELINEATION AND FUNCTIONAL VALUES ASSESSMENT Foster Ridge Property East of South 139th Street and West of MaCadam Road South Tukwila, Washington Prepared for: JBMF CONSULTING ENGINEERS P. 0. Box 27 Everett, WA 98206 Prepared by: SHELDON & ASSOCIATES, INC. 5031 University Way NE, #208 Seattle, Washington 98105 206/522 -1214 November 16, 1995 WETLAND DELINEATION AND FUNCTIONAL VALUES ASSESSMENT Foster Ridge Property East of South 139th Street and West of MaCadam Road South Tukwila, Washington Prepared for: John Friel JBMF CONSULTING ENGINEERS P. O. Box 27 Everett, WA 98206 Prepared by: Pesha O. Klein SHELDON & ASSOCIATES, INC. 5031 University Way NE, #208 Seattle, Washington 98105 206/522 -1214 November 16, 1995 LIST OF FIGURES AND TABLES Figures Page 1 Site Location Map 2 Tables 1 Wetland Plant Indicator Status 4 JBnat Consulting Engineers/Foster Ridge Wetland Delineation and Functional Values Assessment iv by Sheldon & A%ociates November 17,1995 TABLE OF CONTENTS Page INTRODUCTION 1 METHODOLOGY 1 Review of Existing Information 1 Wetland Definition 1 Evaluation of Field Conditions 3 Wetland Delineation and Classification 3 Vegetation 3 Soils 4 Hydrology 4 Wetland Determination 5 United States Fish and Wildlife Vegetation Classification 5 Wetland Rating 6 Type 1 6 Type 2 6 Type 3 6 Wetland Buffer 6 Wetland Functions and Values 7 Water Quality Improvement 7 Flood /Stormwater Control 7 Groundwater Exchange g Natural Biological Support 8 Cultural /Recreational Value 8 FINDINGS 8 General Site Characteristics 8 Wetland Characteristics 9 Wetland 1 9 Wetland 2 10 Wildlife Observed or Expected 11 REGULATORY ISSUES 11 REFERENCES 12 Literature Cited 12 APPENDIX A - DATA SHEETS APPENDIX B - SURVEYED WETLANDS BOUNDARY MAP JBMF Consulting Engineers/Foster Ridge Wetland Delineation and Functional Values Assessment by Sheldon Se Associates November 17,1995 WETLAND DELINEATION AND FUNCTIONAL VALUES ASSESSMENT INTRODUCTION Sheldon & Associates conducted a wetland delineation on the proposed plat at the Foster Ridge Property located east of South 139th Street and west of MaCadam Road South in Tukwila, Washington (Figure 1 shows the approximate location of the project area). The purpose of this report is to characterize the wetland, assess functional values, and rate the wetland per the City of Tukwila Sensitive Areas Overlay Zone (1994). METHODOLOGY Review of Existing Information Existing documents were reviewed to gain specific background knowledge of the site. Literature reviewed as part of the study included: • City of Tukwila Sensitive Areas Overlay Zone, Chapter 18.45 (1994); and • City of Tukwila Sensitive Areas Overlay Maps, Wetland Inventory (1991). Wetland Definition Both the 1987 Army Corps of Engineers Wetland Delineation Manual (Environmental Laboratory 1987) and the 1989 Unified Federal Methodology for Identifying and Delineating Jurisdictional Wetlands (FICWD 1989) define wetlands as follows: Those areas that are inundated or saturated by surface or groundwater at a frequency and duration sufficient to support, and that under normal circumstances do support, a prevalence of vegetation typically adapted for life in saturated soil conditions. Wetlands generally include swamps, marshes, bogs, and similar areas. JBMF Consult ingEnglneen/Foster Ridge by Sheldon & Associates Wetland Delineation and Functional Values Assessment 1 November 17,1995 Source: Site Survey,1995 Cnt tTU t INC b.= 0305'2Y L=45.78' R= 849.03' a =255 t =58.7 R=1 30. Figure 1. Site Location Map IMF Consulting Engineers/Foster Ridge Wetland Delineation and Functional Values Assessment 2 i by Sheldon & Associatei Nonrmber 17, 1995 Vegetation JBMF Consulting Engineers/Foster Ridge Wetland Delineation and Functional Values Assessment Evaluation of Field Conditions The wetland determinations were made on site by Pesha Klein of Sheldon & Associates on November 3, 1995. Wetlands were delineated using the 1989 Unified Federal Methodology for Identifying and Delineating Jurisdictional Wetlands (FICWD 1989) and the Army Corps of Engineers 1987 Wetland Delineation Manual (Environmental Laboratory 1987). The entire project area was walked to assess the area for wetlands. Data was collected on vegetation, soils, and hydrology for each area that appeared to have wetland characteristics, and a wetland /non - wetland determination was made. If an area was determined to be wetland, the boundary was flagged with pink and black striped plastic flagging affixed to vegetation. The Army Corps of Engineers uses the 1987 Army Corp of Engineers Wetland Delineation Manual (Environmental Laboratory 1987) to identify and delineate wetlands. The City of Tukwila will require the use of the 1987 Methodology after December 31, 1995 to identify wetlands. However, the City currently requires the use of the 1989 methodology; therefore, the wetlands on this site were delineated using both methods. The wetlands on this site meet the wetland criteria for both the 1987 and 1989 methodologies, and did not require two separate flagged boundaries. Wetland Delineation and Classification Both the 1987 and 1989 Federal manuals require examination of three parameters: vegetation, soils, and hydrology. For an area to be classified as wetland, hydrophytic vegetation, hydric soils, and wetland hydrology must be exhibited. Each parameter is discussed further in the sections below. Data were recorded on field data sheets, which are presented in Appendix A. The flag number for the wetland plot appears in the upper left hand corner of the data sheet and corresponds to the plot shown on the surveyed wetlands map as the area where the data was collected. Hydrophytic vegetation consists of those plant species growing in water, soil, or on a substrate that at least periodically lacks oxygen. For each plot, percent area coverage was estimated for each plant species present, and dominant species were determined. Per the 1989 manual, the . hydrophytic vegetation criterion is met when more than 50 percent of the dominant species are hydrophytic, based on the wetland plant species indicator status from the U.S. Fish and Wildlife Service rating (Reed 1988). The wetland plant rating list separates vascular plants into four basic groups by their wetland indicator status. A plant species indicator status is based on that species frequency of occurrence in a wetland. The indicator status rating is summarized in Table 1. Plant species are identified using Flora of the Pacific Northwest (Hitchcock and Cronquist 1973). 3 by Sheldon & Associates November 17,1995 Indicator Status Definition Obligate Wetland Plants (OBL) Plants that occur almost always in wetlands: estimated probability in wetlands greater than 99% under natural conditions. Facultative Wetland Plants (FACW) Plants that have an estimated probability of 67% - 99% to be found in wetlands. Facultative Plants (FAC) Plants that are equally likely to occur in wetlands or nonwetlands: estimated probability of 34% - 66% to be found in wetlands. Facultative Upland Plants (FACU) Plants that usually occur in nonwetlands, estimated probability of 1% - 33% to be found in wetlands. Obligate Upland (UPL) Plants that occur almost always in nonwetlands under natural conditions, estimated probability greater that 99 %. Table 1. Wetland Plant Indicator Status Soils Soils were sampled in each plot and evaluated for hydric indicators using a soil auger. Soils were sampled to a depth of 18 inches where possible. When using the 1987 methodology, the soil was observed for hydric soil indicators immediately below the A- horizon or 10 inches whichever was shallower. When using the 1989 methodology, soils were observed immediately below the A- horizon (approximately 12 inches) for hydric soil indicators. Hydric indicators for both methodologies include mottling and /or gleyed soils. Mottles are spots or blotches of contrasting color occurring within the soil matrix. Gleyed soils are predominantly neutral gray in color. Soil chroma, or color, was determined using a Munsell color chart (Kollmorgen Corporation 1975). When using the 1987 Routine methodology for areas equal to or less than 5 acres in size, hydric soils are assumed to be present in any plant community in which all dominant species have an indicator status of OBL or, all dominant species have an indicator status of OBL or FACW, and wetland hydrology is present. Soil characteristics were not compared to Soil Conservation Service (SCS) descriptions of mapped soils because soils were not mapped for the Tukwila area. Hydrology Direct observations of hydrology are often limited during the dry season. However, indicators may be present throughout the year that confirm the occurrence of saturation or IBMF Consulting Engineers/FosterRidge 6y Sheldon & Associaees Wetland Delineation and Functional Values Assessment 4 November 17, 1995 inundation for periods of time adequate to satisfy criteria designated in FICWD (1989) and the Corps of Engineers Manual (1987). Indicators for wetland hydrology using the 1987 methodology include recorded data and field data such as visual observation of inundation or saturation, watermarks, drift lines, sediment deposits, and drainage patterns. Independent evidence of wetland hydrology is required with the 1987 method. Indicators for the 1989 methodology include recorded data, aerial photographs, and field indicators such as visual observation of inundation or saturation, oxidized channels, water marks, drift lines, visible sediment deposits on substrate and plant surfaces, water - stained leaves, surface scoured areas, wetland drainage patterns, morphological plant adaptations and hydric soil characteristics. In cases where both hydrophytic vegetation and hydric soils are present, wetland hydrology is assumed to occur per the Unified Federal Methodology (FICWD 1989). Duration of inundation and /or soil saturation for the 1987 method is based on the number of days at 32 degrees Fahrenheit or above during the growing season. For the Pacific Northwest, inundation or saturation to the surface for at least 12.5% or more of the growing season in most years. The growing season in the Tukwila area is 207 days (SCS 1973), therefor the wetlands in this project must have 26 days of continuous hydrology to meet the criteria for wetland hydrology. Surface saturation or inundation using the 1989 method is determined on the natural drainage class, water table, and permeability or inundation /saturation for one week or more during the growing season. Wetland Determination Sampling results for the three parameters were analyzed to make a wetland determination for each plot. Based on the results of plot determinations and visual observation of site characteristics, an overall assessment of the area was conducted, and wetland boundaries were located. The boundaries were identified by attaching flagging to vegetation at approximately 20 -foot intervals. For most wetland plots identified, data for a corresponding upland plot was collected to confirm the edge of the wetland. The wetlands were surveyed by Barrett Consulting Group survey crew. Refer to Appendix B for the Wetland Survey Map. United States Fish and Wildlife Vegetation Classification Vegetation communities in the wetland were classified using a system developed by the United States Fish and Wildlife Service called Classification of Wetlands and Deep Water Habitats of the United States (Cowardin et al. 1979). This system is hierarchical and structured around biological, hydrological, and substrate characteristics. JBMF Consulting Engineers/Foster Ridge Wetland Delineation and Functional Values Assessment 5 by Sheldon & Associates November 17, 199.5 Type 1 Type 2 Type 3 Wetland Rating The City of Tukwila rates wetlands based on the following rating system: Those wetlands which meet any of the following criteria: A) The presence of species listed by the federal government or State as endangered or threatened, or the presence of critical or outstanding actual habitat for those species, B) Having 40% to 60% permanent open water in dispersed patches with two or more classes of vegetation, C) Equal to or greater than five acres in size and having three or more wetland classes, one of which may be substituted by permanent open water. Those wetlands which meet any of the following criteria: A) Greater than one acre in size, B) Equal to or less than one acre in size and having three or more wetland classes, C) Equal to or less than one acre, that have a forested wetland class comprised of at least 20% coverage of total surface area, or D) The presence of heron rookeries or raptor nesting trees, E) The presence of native plant associations of infrequent occurrence. Those wetlands which are equal to or less than one acre in size and that has two or fewer wetland classes. Wetland Buffer Wetland buffers are considered to be one of the richest zones for mammals and birds. Vegetated upland buffers provide essential life needs for birds and animals that are considered to be wetland - dependent species (Washington Department of Ecology 1992). Functions which may be provided by wetland buffers include protecting wetland functional values, water quality improvement, wildlife habitat, and human impact deterrence. Vegetated wetland buffers may reduce impacts to water quality by controlling soil erosion, reduce pollutants, and can reduce water velocities, and may moderate water level fluctuations. JBMF Consulting Engineers/Foster Ridge by Sheldon & Associates Wetland Delineation and Functional Values Assessment 6 November 17,1995 buffers: The City of Tukwila Sensitive Areas Overlay Zone (Chapter 18.45.040) requires the following Type 1 Wetlands Type 2 Wetlands Type 3 Wetlands 100 -foot wide buffer 50 -foot wide buffer 25 -foot wide buffer The wetland buffer is measured from the wetland edge as delineated in the field. In addition to a buffer setback, the City requires a 10 -foot residential building setback measured from the edge of the buffer. Water Quality Improvement Flood/Stormwater Control Wetland Functions and Values Wetlands have the ability to reduce flooding, purify water, and provide wildlife habitat, shoreline protection, groundwater exchange, and offer cultural and recreational values. An informal wetland functional value assessment was conducted for the wetlands in the project area. Each of the functions described below were rated high, moderate, or low. A brief summary discussion of functional values for the wetlands are discussed in the Findings Section of this report. Wetlands can improve water quality by filtering out sediments, excess nutrients, and toxic chemicals. This can occur through settling, which happens when water velocity is slowed in a wetland, and through uptake of materials by vegetation. A wetland's ability to purify water is based on a number of factors, including the residence time, and type and density of vegetation. Wetlands do not function as bottomless sinks for the treatment of degraded surface water or the deposition of large quantities of sediments. All wetlands have a threshold limit; input exceeding the limit will result in the collapse of the wetland system. Wetlands can play an important role in flood reduction because of their ability to slow and store flood waters. During high rainfall events, water can be stored in wetlands and released slowly over a few days, thereby reducing the volume of water available at the time of peak flooding. This is especially important in urbanizing areas. The ability of a particular wetland to reduce flooding is dependent on a number of factors, including the wetland's position in the watershed, size, shape, and association with other aquatic systems. Groundwater Exchange Wetlands can act as groundwater recharge sites, or groundwater discharge sites. Groundwater recharge occurs when water from the land surface percolates slowly into the ground JBMF Consulting Engineers/FosterRidge by Sheldon & Assoclala Wetland Delineation and %nctional Values Assessment 7 November 17,19915 to replenish aquifers, which are sometimes used as municipal or private water supplies. Wetlands may recharge shallow or perched lenses of water which in turn discharge into streams. Groundwater discharge, which is more common in the Pacific Northwest, occurs when groundwater emerges from the ground as a seep or a spring, thus helping to maintain stream flows. The permeability of underlying soils and the location of the water table determine a wetland's groundwater exchange. Natural Biological Support A number of wildlife species are dependent upon wetlands for all or part of their life cycle. The wildlife habitat is dependent, in part, on the structural and species diversity of plant communities, the proximity of upland habitat, and surrounding land uses. The structural complexity of a tree canopy layer, shrub layer, and ground layer provide feeding, resting, and nesting habitat for a wide variety of species. Cultural/Recreational Value Wetlands have value as scenic and recreational areas. Recreational opportunities include hiking, bird watching, or fishing. Some wetlands are important archeological or historical sites, while others have been utilized for scientific study, education, and the protection of aquatic and terrestrial habitats. FINDINGS General Site Characteristics The proposed project site is approximately 35 acres and is located east of South 139th Street, north of South 140th Street, south and west of MaCadam Road South in the City of Tukwila, Washington. The site generally slopes south to north and consists of a series of steep slopes interspersed with level areas. An old road alignment overgrown with vegetation runs west to east bisecting the property. The south property boundary area is very steep, levels out, then slopes steeply north, down to the road. Numerous seeps are present. North of the road, the site levels out, and then slopes south and east off site. Portions of the site appears to have been cleared and graded within the past five to six years and has revegetated with Himalayan blackberry (Rubus procerus). Other areas are an open forest community consisting of red alder (Alnus rubra), black cottonwood (Populus trichocarpa), and big leaf maple (Acer macrophyllum) in the canopy. Himalayan blackberry dominates the understory indicating the site was disturbed. Old apple trees (Malus spp.) occur occasionally and English ivy (Hedera helix), and escaped ornamental is found growing throughout the site. The King County Soil Survey did not map soils in the project area. In general, the soils were disturbed barns and clay barns containing charcoal fragments. JBMF Consulting Engineers/Faster Ridge by Sheldon Se Associates Wetland Delineation and Functional Values Assessment 8 November 17,1995 Two wetlands were identified within the project area. Wetland 1, a palustrine forested wetland is located south of the road in the seep area. The entire wetland is present on site and was delineated and flagged. Wetland 2 is located on the north property boundary. The majority of the wetland is located offsite. Only the onsite portion of the wetland was flagged. Neither of the wetlands on the site were identified by the City of Tukwila Sensitive Overlay Wetland Map (1991). The wetlands on this site meet the wetland criteria for both the 1987 and 1989 methodologies, and did not require two separate flagged boundaries. Wetland 1 Wetland Characteristics Description/Vegetation. The wetland is located south of the road alignment and consists of an upper and lower region. The upper region is located at the base of the steep slopes of the southern property boundary where several hillside seeps are present. Water collects in this upper area and then continues south where it drains down a second steep slope and collects at the base of the slope where the road is located or in ruts of old tire tracks from heavy equipment. Eventually the water goes subsurface and continues to drain north. The wetland would be classified by the Cowardin system (1979) as a palustrine forested wetland because 20% of the wetland is covered by trees rooted in the wetland. Dominant vegetation in the canopy consists of red alder and black cotton wood trees. The shrub layer is sparse, dominated by Himalayan blackberry. Pacific willow (Salix lasiandra), red alder, and black cottonwood occurs occasionally. The herbaceous layer is densely vegetated, and dominant vegetation consists of creeping buttercup (Ranunculus repens), tall mannagrass (Glyceria data), and stinging nettle (Urtica dioica). Subdominant species include giant horsetail (Equisetum telmateia), skunk cabbage (Lysichitum americanum), and bindweed (Convolvulus spp.). One large patch of small -fruit bulrush (Scirpus microcarpus) is present in the lower region of the wetland. Soils. Soils in the wetland and the upland were not mapped by SCS. The soil in Wetland 1 are mixed and consist of a variety of soil colors and textures. Charcoal particles were found in many of the soil samples indicating past disturbances of grading and burning. Soils in the wetland consist of gray (10YR 5/1) clay loams with dark brown (10YR 3/3) mottles, dark gray (2.5Y 4/0) clays, or black (10YR 2/1) silt barns at a depth of 10 to 12 inches. The color of the soil matrix and the mottles in this wetland indicate that hydric soil conditions are present. Soils in the upland consist of dark grayish brown (2.5Y 4/2) day foams with few, faint mottles, olive brown (2.5Y 4/3) clay foams, and dark brown (10YR 3/3) foams at a depth of 10 to 12 inches. Hydrology. Soils were saturated to the surface at the time of the delineation, with standing water at the base of both slopes at a depth of approximately 4 to 6 inches. Sources of water to this wetland are hillside seeps and direct precipitation. Soils outside of the wetland were either dry or somewhat moist but not saturated. At the time of the delineation there was no rainfall for about two weeks, indicating the source of hydrology are the seeps. Based on the presence of saturation and inundation at the site in the absence of rainfall, it is assumed that wetland hydrology is satisfied using the 1987 and the 1989 methodology. JBMF Consulting Engineers/Foster Ridge by Sheldon & Aseociales Wetland Delineation and Functional Values Assessment 9 November 17,1995 Wetland Buffer. The wetland buffer consists of open canopy upland forest as described under the General Site Characteristics. Wetland Functional Values. Water quality improvement is probably moderate due to the dense cover of emergent vegetation and long water retention in the wetland. Floodflow moderation is likely to be moderate, as water collects in the topographically level areas and is retained before draining downslope. Biological support is moderate because the wetland has a tree canopy layer, shrub layer, and ground layer provide feeding, resting, and nesting habitat for a wide song birds and small mammals. Buffers are intact and provide good protection to the wetland. Cultural /Recreation Values are low because this wetland is not accessible to the general public, and cannot be observed from public access. Wetland Rating. This wetland would likely rate a Type 2 per the City of Tukwila because it is equal to or less than one acre, and has a forested wetland class comprised of at least 20% coverage of total surface area. According to the City of Tukwila, a Type 2 wetland requires a 50 -foot buffer setback. Wetland 2 Description/Vegetation. Wetland 2 originates at the northern property boundary at the base of a steep slope and continues north offsite. The majority of the offsite portion is the backyard of a residential property. Without access to the offsite portion it is not known how large the wetland is or if wetland is present. An area approximately less than 50 square feet was flagged onsite. The wetland would be classified by the Cowardin system is a palustrine scrub -shrub system dominated by Himalayan blackberry. Lady fern (Athyrium feliz femina) is present occasionally. Soil and Hydrology. The soils in the onsite portion of this wetland are black (1OYR 2/1) silt loams at a depth of 10 to 12 inches. Soils in the upland are dark brown (10YR 3/3) gravelly loam at a depth of 10 to 12 inches. The source of water to the wetland are flows from a pipe that extends out of the ground at the base of the steep slope. It is unknown where the source of water originates. Water flows north out of the pipe offsite. Soils in the wetland were moist and inundated only in the narrow pathway of the flowing water. Wetland Buffer. The buffer consists of open upland forest to the south, east and west. A shed and residential housing are located in the northern buffer area. Wetland Functional Values. Overall, this is a low value wetland. The wetland is very small, and water flows offsite with no retention time in the wetland. The water does provide drinking and bathing water to wildlife. Wetland Rating. This wetland would likely rate a Type 3 per the City of Tukwila because it is equal to or less than one acre in size and has two or fewer wetland classes. According to the City of Tukwila, a Type 3 wetland requires a 25 -foot buffer setback. JBMF Consulting Engineers/Foster Ridge by Sheldon Si Associaks Wetland Delineation and Functional Values Assessment 10 November 17,1995 JBMF Consulting Engineers/Foster Ridge Wetland Delineation and Functional Values Assessment Wildlife Observed or Expected A formal wildlife study was not part of this scope, however, wildlife use of the wetlands in this project area are limited because of the development in the area. A number of passerine birds were observed within, above, and adjacent to the wetlands and stream. Small mammals such as rabbits, moles, opossum, mice, raccoon, and shrews would be expected to use the upland forest adjacent to the wetland for food, nesting, and cover. REGULATORY ISSUES Several federal, state, and local regulations affect the development of wetland areas. Agencies that have jurisdiction over development impacts associated with onsite wetlands include, but may not be limited to, the City of Tukwila and the U.S. Army Corps of Engineers (ACOE). Prior to permitting any activities in wetlands, the City of Tukwila requires wetland boundaries to be delineated and surveyed by qualified personnel. Wetlands are subject to verification and approval by the City. According to the City of Tukwila Sensitive Areas Overlay Zone Chapter 18.45.080, no use or development may occur in a Type 1 or 2 wetland or its buffer except as specifically allowed by subsections a, b and h. Subsections b and h may apply to your project. Subsection b: Permitted Uses Subject to Administrative Review includes; permitted construction of new essential streets and roads, only after administrative review and approval by the Director of the Department of Community Development (DCD). Subsection h: Permitted Uses Subject to an Exception Approval permits other uses after receiving a reasonable use exception. Only Type 3 isolated wetlands can be altered or relocated, and then only with the permission of the DCD Director. A mitigation or enhancement plan must be developed and must comply with the standards of compensatory mitigation required by the City of Tukwila Sensitive Areas Zone (1994). The ACOE administers Section 404 of the Clean Water Act, which regulates the discharge of dredged or fill materials into waters of the United States, including wetlands. For this project, if any wetland fill is proposed, the Corps would have to be notified so they could verify the wetland edges and make their jurisdictional determination on which type of permit is required. REFERENCES Literature Cited 11 by Sheldon & Associates November 17,1995 Cowardin, L.M., V. Carter, F.C. Golet, and E.T. La Roe. 1979. Classification of wetlands and deepwater habitats of the United States. Office of Biological Services, Fish and Wildlife Service, U.S. Department of the Interior, FWS 1035- 79/81. 103 pp. Environmental Laboratory. 1987. Corps of Engineers wetlands delineation manual, technical report Y -87 -1, U.S. Army Engineer Waterways Experiment Station, Vicksburg, Mississippi. Federal Interagency Committee for Wetland Delineation (FICWD). 1989. Federal manual for identifying and delineating jurisdictional wetlands. U.S. Army Corps of Engineers, U.S. Environmental Protection Agency, U.S. Fish and Wildlife Service, and USDA Soil Conservation Service. Washington, D.C. Cooperative technical publication. 76 pp. plus appendices. Hitchcock, C.L. and A. Cronquist. 1973. Flora of the Pacific Northwest. University of Washington Press. 730 pp. Kollmorgen Corporation. 1975. Munsell soil color chart. Macbeth Division of Kollmorgen Corporation. Baltimore, Maryland. Reed, P.B., Jr. 1988. National list of plant species that occur in wetlands: Northwest (Region 9). U.S. Fish and Wildlife Service Biological Report. 88 (26.9). 89 pp. Tukwila, City of. 1994. City of Tukwila sensitive areas overlay zone, Chapter 18.45. City of Tukwila, Washington. Tukwila, City of. 1991. City of Tukwila sensitive areas overlay maps, Wetland layer. City of Tukwila, Washington. United States Department of Agriculture, Soil Conservation Service. 1973. Soil survey, King County area, Washington. Washington Department of Ecology. 1992. Wetland buffers: use and effectiveness. Publication #92- 10. Washington State Department of Ecology. Olympia, Washington. JBMF Consulting Engineers/Foster Ridge by Sheldon b Aratiata Wetland Delineation and Functional Values Assessment 12 November 17,1995 APPENDIX A DATA SHEETS Client: Fr t-e-I Field Inve t ator(s):p 1< am County' tty: - 71.A.kun la., Plant Community: PFb/p5 s Flag #: ( - 1 Methodology Used: ( � 1%41 Dominant Plant Species, Indicator Status, % Cover, Stratum 11. Fort it/t5 Sri�hoCa, FAc 15 7 2. P6p Li 1u4 - 6r/ ohoyratipo. FAG !0 /a ' y 3. A i lc l astanJtra Gsi-G(A1 /5% s y / 4. Lbu s 61:4‹.&61A-- FR c- 15% 5. 5c-Ar(pu6 IsumearIlt_S 0 L -75% H Percent of dominant species that are OBL, FACW, and/or FAC: /OO % Is the hydrophic vegetation criterion met? v- ea4.04 l 'J o/ of derm,nevrt specc.0 Rationale: are F. c77r meter cjemtnard'S SCS Series /Phase: )144- mope-( SCS Hydric List? Is the observed soil a Histosol? Depth /0 Matrix /oyR 5/1 cf 2 Other hydric soil indicators: Is the hydric soils criterion met? Rationale: Comments: filarCoal ecec cs d. s44-en eil-r arts SHELDON & ASSOCIATES WETLAND DELINEATION DATA FORM ONSITE DETERMINATION VEGETATION SOILS Mottle Io y# 3 l3 HYDROLOGY Project/Site: )'54? FZ Raj e Date: 1 Wetland #: Plot #: / Dorn t 6. re ts cator Status, % Cover, Stratum f c � FAGW 15 - ( 7. Ectoi e -Fu.,, d r► to f t e� A✓1J SQ� f/ 8. 9. 10. Gley Texture /(a (Oct Pv, Is the area inundated? f'10 Depth of water: Is the soil saturated? t,.es • Depth to water: -to r .e.c . Other field evidence of surface inundation or soil saturation: Is the wetland hydrology criterion met? y4 Rationale: m.e.e,cs cn r.41n4vt. (L' & ey) /q g 7 / qK q /taa/s erg - �<a d s /a 'q . } dais cor> c iu� JURISDICTIONAL DETERMINATION AND RATIONALE Is the sample plot a wetland? ()-t.S Rationale for jurisdictional decision: leALL S a "f h r��. t :Le, a Q 1 Comments: I Client: Fr i.e I Field Investigator(s): f 1Clei�t, County j 7u k w! lek-- Plant Community: t td,p 5hn/lo Flag #: 1 Methodology Used: N$- E I ae 1 Dominant Plant Species, Indicator Status, % Cover, Stratum 1 . Rubes d c _ 74i, /00 °A 2. 3. 4. 5. SCS Series/Phase: tii® hqa- p SCS Hydric List? Is the observed soil a Histosol? -- SHELDON & ASSOCIATES WETLAND DELINEATION DATA FORM ONSITE DETERMINATION 62•5y 9 1 , -re in VEGETATION SOILS Project/Site: - r j 1613 e, Date: l t, 37-Q Wetland #: t Plot # Dominant Plant Species, Inofcator Status, % Cover, Stratum 6. 7. 8. 9. 10. Percent of dominant species that are OBL, FACW, and /or FAC: /dt) % Is the hydrophic vegetation criterion met? r�yc_s Rationale: 50o of Oche &. F>4c cN' wetter Depth Matrix Mottle Gley Texture a1t Other hydric soil indicators: Is the hydric soils criterion met? l}ozc6-f_ Rationale: Comments: Comments: �e,., wry_" .� _ _' fha 47 tk, !'vie s rce d utfcv mt cs r a rL-e /tot ' a LOGY o Qn2ro lot e, 3 - fb Of f Is the area inundated? h O Depth of water: Is the soil saturated? No • Depth to water: Other field evidence of surface inundation or soil saturation: n 0 Is the wetland hydrology criterion met? no Rationale: (aCks rnuvte w(.e Ad & s 44tA-4 a -wt-Q 4m'L JURISDICTIONAL DETERMINATION AND RATIONALE Is the sample plot a wetland? nv Rationale for jurisdictional decision: Ned 1 -t r. 66 3 Comments: Client: J}- t eJ SHELDON & ASSOCIATES WETLAND DELINEATION DATA FORM ONSITE DETERMINATION Field 'rive tigator(s): P County -ro 1& l.eu Plant Community: U7fa44d -I reg( Flag #: /- /O Methodology Used: 1 cl ST t9 8 c .1w- `�"^�' VEGETATION Project/Site: r -(e-r- gt Date: I t ( V9 Wetland #: Plot #: 3 Dominant Plant Species, Indicator Status, % Cover, Stratum Dominant Plant Species, IncicaUOr Status, % Cover, Stratum 1. Atna6 rubr'. FA6 foci/ T 6. 2. / u bus d sce for ,4-6 // S 7 3. TeSiiri e a.- rnenz FAG /5% 1V 8. 4 . enet ter; Ne- R5 6 1z, f] 9. 5. 10. Percent of dominant species that are OBL, FACW, and /or FAC:'7 Is the hydrophic vegetation criterion met? S Rationale: ret; -,4 414zz oK dey e�(lad FAG SOILS SCS Series /Phase: _AV mare'ef SCS Hydric List? Is the observed soil a Histosol? Depth Matrix Mottle Gley Texture /O-1 .2" 02.5/ `73 cl� laa� Other hydric soil indicators: Is the hydric soils criterion met? {i 0 Rationale: /eV/45 lbw cjua , a tri&t -S Comments: HYDROLOGY Is the area inundated? no Depth of water: Is the soil saturated? nb Depth to water: Other field evidence of surface inundation or soil saturation: Is the wetland hydrology criterion met? f ete.4 6S i no,tc a iew S a - i'urad'' Rationale: JURISDICTIONAL DETERMINATION AND RATIONALE Is the sample plot a wetland? Y4 , Rationale for jurisdictional decision: dere6 {eaf yyLe.A 2 64 ' 7 j Comments: Client: t r; ? ` Field Investigator(s): r k/e County 5 Kun l o Plant Community: Flag #: / -' Methodology Used: ( 6 [ $ 4 d- I c jq -, (1 -" - Dominant Plant Species, Indicator Status, % Cover, Stratum 1. 4(nas rulofa 2. gtibus etc F4 gc '/c .S 3. '/javiufricu r'v5 ref- -4 F4z Go /5% -t<l 4. f- f-edtra / .e f /x A) L 5. u .t S eia,,i 4-e.lh1 a fie FA 5%, H Percent of dominant species that are OBL, FACW, and /or FAC: 80 % Is the hydrophic vegetation criterion met? tle.5 Rationale: area-sit , fhc� , , � 5 fy,-e. crime FAG or weff'er SCS Series /Phase: F?of SCS Hydric List? — Is the observed soil a Histosol? Depth 2 Li Matrix e2.6/q/0 Other hydric soil indicators: -1 ,- tz.-fio -.. Is the hydric soils criterion met? ci e 5 Rationale: (ou, Comments: SHELDON & ASSOCIATES WETLAND DELINEATION DATA FORM ONSITE DETERMINATION VEGETATION ion SOILS Project/Site: r ,4 rely Date: 1 J 3/ 9 5 Wetland #: Plot #: t11 Dominant Plant Species, Indcabr Status, % Cover, Stratum 6. 7. 8. 9. 10. Mottle Gley Texture HYDROLOGY Is the area inundated? h 6 Depth of water: Is the soil saturated? Y•e S Depth to water: 10 y-j Other field evidence of surface inundation or soil saturation: '7 Is the wetland hydrology criterion met? yes Rationale: 5 -, 5 e -,�_ NIT - s sa zvtarivia I go? - at al 5 Sa.-44 JURISDICTIONAL DETERMINATION AND RATIONALE Is the sample plot a wetland? tree Rationale for jurisdictional decision: {yam' Q0 I1'e.Q C. ' Comments: Client: Fr 1-e Field Inve Isator(s): P, k Letvt Count — Raw( 16,, Plant Community: 1 5 5 Flag #: I —Z Methodology Used: ) °1'g� (civ Other hydric soil indicators: t h u r cte4 o -i Is the hydric soils criterion met? 41../-e s Rationale: 1c zo c t,,- a. Comments: SHELDON & ASSOCIATES WETLAND DELINEATION DATA FORM ONSITE DETERMINATION Project/Site: 5 /id-. VEGETATION Dominant Plant Species, Indicator Status, % Cover, Stratum - tr 1. I 6u5 d csca-lo7e.- F4c 76o9'v S 2. St /i y l Q a y r� F/16 -/A/ 5% 5 3 • Urcbca. d /� � ZS% fl 5. 14 donvolyt t'uS 5 lUC. 2o° h btu r .-• del Mct t ea., F.4c J S ° SOILS Depth Matrix Mottle Gley /o— (2'1 /DYK HYDROLOGY Date: /0/75 Wetland #: / Plot #: 5 JURISDICTIONAL DETERMINATION AND RATIONALE Is the sample plot a wetland? Rationale for jurisdictional decision: {•vt.e e? s a ll - 8 , ver2 c 1 user.. Comments: Dominant Plant Species, Indcator Status, % Cover, Stratum 6. 7. 8. 9. 10. Percent of dominant species that are OBL, FACW, and /or FAC: % Is the hydrophic vegetation criterion met? tt e S Rationale: .� , {ha m 5?)(< cl iw i ty Le d ern c aAs (4C trt We t/ = dor ha»t spew, SCS Series /Phase: no-( p e 4 SCS Hydric List? — Is the observed soil a Histosol? '— Texture ci /oa w, Is the area inundated? y-es Depth of water: /1' Is the soil saturated? yes • Depth to water: 10 surer Other field evidence of surface inundation or soil saturation: Is the wetland hydrology criterion met? yzs lnunea-�ion sa.t kc w /q�; - ace day Rationale: J 'qv- 7- dap � Client: Fr" t e( Field Investigator(s): / t%Le c n Count i j Tv kojt Plant Community: U pl Flag #: (- Zv Methodology Used: Dominant Plant Species, Indicator Status, % Cover, Stratum 1. Airtus ru lira F4 e-- /3 7 2 . Nla /cc s spp �1C_ 60/0 60/0 S 3 . g u bus £ cJor 4. T lM /Ga m-em i egi( FAc- Zo. f 5. Percent of dominant species that are OBL, FACW, and/or FAC: 75 % Is the hydrophic vegetation criterion met? cis Rationale: O - „ ST:r/ SCS Series/Phase: no nia o eed • SCS Hydric List? Is the observed soil a Histosol? Depth mac Matrix /Oyg 3/ SHELDON & ASSOCIATES WETLAND DELINEATION DATA FORM ONSITE DETERMINATION krores4 Mottle VEGETATION - fho d urn , r art E SOILS Other hydric soil indicators: Is the hydric soils criterion met? x'1 Rationale: (ac l-€ foL€ Ghrorn�t d I,,. f1i s Comments: c 6tarco4 / t aQ, -(-c Le9 z + HYDROLOGY Project/Site: 15r Date: W314S--- Wetland #: / Plot #: co Dominant Plant Species, Indcator Status, % Cover, Stratum 6. 7. 8. 10. Gley FAC 0>- Texture /bar Is the area inundated? AO Depth of water: Is the soil saturated? by • Depth to water: Other field evidence of surface inundation or soil saturation: Is the wetland hydrology criterion met? h Rationale: /q, elA nvur _kerr% t f S�u✓��'r 0,7 JURISDICTIONAL DETERMINATION AND RATIONALE Is the sample plot a wetland? 40 Rationale for jurisdictional decision: c� n0-1 11-1_ m Comments: d?te 3 froticcL tAifier eL Dominant Plant Species, Indicator Status, % Cover, Stratum 1. 'v buG CUSCC {cr ( tao °lo f:: 2. /q4-h7 r u ar- -'i /iv - Fern / n � PAC_ 3. 2yi, 4. 5. Client: 7r l�( Percent of dominant species that are OBL, Is the hydrophic vegetation criterion met ?y Rationale: a ,../..e1- man SCS Series /Phase: 14 o - F /Ivy o - e SCS Hydric List? Is the observed soil a Histosol? Depth Matrix (U_ (" ` (o y(Z 2- Other hydric soil indicators: Is the hydric soils criterion met? y->°s Rationale: ! ch re:7,n0, Comments: SHELDON & ASSOCIATES WETLAND DELINEATION DATA FORM ONSITE DETERMINATION Field Investigator(s): (e o County ity: "ry f<wl ( eL. Plant Community: .17 S Flag #:,2- I Methodology Used: ( 4g4 5a % VEGETATION 1-1 FACW, and /or FAC: /b0 % e fh e d ©yn`c - S e ra SOILS Mottle Gley HYDROLOGY Project/Site: FUS R rd Date: f l / Wetland #: L Plot #: L Dominant Plant Species, Indicator Status, % Cover, Stratum 6. 7. 8. 9. 10. Is the area inundated? ho Depth of water: Is the soil saturated? ye S • Depth to water: Sur a Other field evidence of surface inundation or soil saturation: Is the wetland hydrology criterion met? �'rS - f Q � � °�D aat n Rationale: c a --k, . 5 IQ fcir 1 decp sct,a v JURISDICTIONAL DETERMINATION AND RATIONALE Is the sample plot a wetland? ycs Rationale for jurisdictional decision: ryt Q,2 "$ a / f #ft rek P.wi Comments: a re F'i (3-1_ Weiter Texture S; 1-) laaw, Client: Fr(le ( Field Inv stigator(s): P k Let Coun Plant Community: u (ax-c &Fo-ct. Flag #: 2 - Methodology Used: 1 ? g / 4gq /Rout nz Dominant Plant Species, Indicator Status, % Cover, Stratum 1. / Incur rabra PA aS ° lo 7 2 . 'ubu5 d C r Felt 5. Et - f2 (mccflPc- ��G4t) Percent of dominant species that are OBL, FACW, and /or FAC: Is the hydrophic vegetation criterion met? 5 SCS Series /Phase: rie9c SCS Hydric List? Is the observed soil a Histosol? — Rationale: Comments. Depth Matrix f /D IZ-" (O y �3 SHELDON & ASSOCIATES WETLAND DELINEATION DATA FORM ONSITE DETERMINATION Mottle Is the area inundated? K° Is the soil saturated? go • Other field evidence of surface inundation or soil Is the wetland hydrology criterion met? 1aryk6 Rationale: VEGETATION SOILS Other hydric soil indicators: Is the hydric soils criterion met? h 0 Rationale: /li ; low chrr„y,.it + t., -t /1 Comments: HYDROLOGY Project/Site: - ( y - Date: 1If3 /95 Wetland #: Plot #: R r�j� Dominant Plant Species, Incicator Status, % Cover, Stratum 6. 7. 8. 9. 10. Gley Depth of water: Depth to water: saturation: sio Texture JURISDICTIONAL DETERMINATION AND RATIONALE Is the sample plot a wetland? ho Rationale for jurisdictional decision: joe4 Itef' -f of " 3 (J 4.1 APPENDIX B SURVEYED WETLANDS BOUNDARY MAP #1392 WETLAND LOCATION JBMF CONSULTING 11 -30 -95 Y 4 • 4 s --. R/0GE .84A Page 4 1 4 4 t t Y f &1-1/aF rr e S1,)4.7r,s f /,v6 , 20080311900002 SHORT PLAT NUMBER L04 -085 DECLARATION Know all men by these present that we, the undersigned, owner(s) in fee simple of the land herein described do hereby make a short subdivision thereof pursuant to RCW 58.17.060 and acknowledge that said subdivision shall not be further divided in any manner within a period of five years. from date of record, without the filing of a final plat. The undersigned further declare this short plat to be the graphic representation of said short subdivision and the same is made with the free consent and in accordance with the desire of the owner(s). In witness whereof we have set our hands and seals. Name: Amy Name: Name: STATE OF WASHINGTON County of King On this day personally appeared before me CNA behalf to me known to be the individual who executed the within and foregoing instrument and acknowledged that he /she signed the same as his/her voluntary act and deed for the uses and purposes therein mentioned. • GIVEN under my hand and official seat this day of dk . 20 O LAND SURVEYORS CERTIFICATE SURVEY IN N.E. 1/4 OF S.E. 1/4 OF SECTION 15 T. 23 N.,R. 4 E., W.M., IN KING COUNTY, WASHINGTON City of Tukwila Department of Community Development 6300 Southcenter Boulevard, Tukwila, WA 98188 Telephone (206) 4313670 FAX (206)431.3665 E-mail: tukplan(atukwlla.wa.us Signature: Name: Name as a commissioned: Title: i-C , r1� My appointment expires: oc)I4 WNIV1(. R.W kY .7E STATE OF WASHINGTON County of King, On this day personally appeared before me to me known to be the individual who executed the within and foregoing instrument and acknowledged that he/she signed the same as his/her voluntary act and • deed, for the uses and purposes therein mentioned. GIVEN under my hand and official seal this day of . 20 Signature: Name as commissioned: Title: My appointment expires: registered as a land surveyor by the State of Washington that this plat is based on an actual survey of the land described herein, conducted by me or under my supervision; that the distances, courses and angles are shown hereon correctly; and that monuments other than those monuments approved for setting at a later date, have been set and lot corners staked on the ground as depicted on the plat. I II ,gook 21 20080311900002 er. satva.s RENABITAT WORT SPn .128.00 PAGES01 OP 905 . e3 /11 /2eee 10 :st KING COUNTY, NA 19 King County Manager SupL of Records ausiesaorrs— PORTION OF N.E. 1/4 OF S.E. 1/4. SEC. 15, TWP. 23 N., RGE. KING COUNTY, WASHINGTON LEGAL DESCRIPTION (OLD): THAT PORTION OF GOVERNMENT LOT 1, SECTION 15, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M., IN KING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS: . ... '.' COMMENCING AT THE SOUTHWEST CORNER OF SAID LOT 1; THENCE N 01'30'53' E FOR A DISTANCE OF 30.00 FEET TO THE TRUE POINT OF. BEGINNING; THENCE S 87'48'48' E. PARALLEL WITH THE SOUTH UNE OF SAID LOT 1, A DISTANCE OF 317.68 FEET; THENCE N 59'49'07' E FOR A DISTANCE OF 204.79 FEET; THENCE N 29'00'36' W FOR A DISTANCE OF 168.40 FEET; THENCE N 82'20'06' W FOR A DISTANCE OF 244.54 FEET; THENCE N 3376'06' W FOR A DISTANCE OF 141.82 FEET; THENCE S 54'20'54' W FOR A DISTANCE OF 65.26 FEET; THENCE N 8879'07' W FOR A DISTANCE OF 30.00 FEET; THENCE S Ot 30'53' W FOR A DISTANCE OF 351.95 FEET TO THE TRUE POINT OF BEGINNING. (ALSO KNOWN AS LOT 1 OF CITY OF TUKWILA BLA L04 -033 RECORDED UNDER KING COUNTY RECORDING NUMBER 20060712900003). BASIS OF BEARINGS: SOUTH LINE OF NORTHEAST QUARTER OF SOUTHEAST QUARTER OF SECTION 15, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M. IN KING COUNTY, WASHINGTON. REFERENCE SURVEYS: BOOK 155, PAGE 122 BOOK 155, PAGE 197 BOOK 205, PAGE 242 BOOK 138, PAGE 252 UNDERGROUND STORM DRAIN EASEMENT RECORDED UNDER KING COUNTY RECORDING NO. 20050214001458 SURVEYOR'S NOTES: 1. INSTRUMENTATION FOR THIS SURVEY_ WAS A 1 SECOND MEASURING UNIT. N TRAVERSE METHODS USED IN PERFORMING SURVEY MEETS OR EXCEEDS MINIMUM STANDARDS OF WAC 332 - 130 -090. 2. PROPERTY IS SUBJECT TO TERMS, RESTRICTIONS, EASEMENTS AND CONDITIONS CONTAINED WITHIN CITY OF TUKWILA BLA NO. 104-03.3, RECORDED UNDER KING COUNTY RECORDING NUMBER 20060712900003. 3. PROPERTY IS SUBJECT TO EASEMENTS, COVENANTS, TERMS AND CONDITIONS OF INSTRUMENTS RECORDED UNDER KING COUNTY RECORDING NUMBERS 7805161076 AND 20060421000207. 4. OWNERS OF LOTS 1 THROUGH 6 SHALL SHARE A ONE —SIXTH UNDIVIDED INTEREST IN THE OWNERSHIP OF THE OPEN SPACE PARCEL LOT AREAS: LOT 1 LOT 2 LOT 3 LOT 4 LOT 5 LOT 6 OPEN SPACE 5,591.4 SF' 5,536.8 SF 5,849.0 SF 5,793.8 SF 5,542.7 SF 6,163.3 SF 93,145.7 SF OWNER(S): REHABITAT NORTHWEST, INC. ADDRESS: 3601 MARGINAL WAY S.W. CITY /STATE/ZIP: SEATTLE, WA 98106 PHONE: 206 932 -7355 SURVEYING S DRAWN BY GLD CHECKED BY ECD APPROVALS Parcel Number(s) 322920-0090 MAPPING SCALE 1 = 40' 4 E., W.M. I VOLUME ,2 aaAGE KING COUNTY FINANCE DIVISION I certify that all property taxes are paid and that a deposit has been made in suffident amount to pay the taxes for the following year, that there are no delinquent special assessments certified to this office for collection; and that all special assessments on any of the property herein dedicated as streets, alleys, or for other public use are paid in full. This ''day of 20 / \ s• King County Treasurer . Deputy King County Treasurer KING COUNTY ASSESSOR'S APPROVAL Examined and approved by the Department of Assessments this 1 a day of Irate. i. , 200u, / / ,/ Scott - Hn hl� �do % . King County Assessor Deputy Assessor TUKWILA SHORT SUBDIVISION COMMITTEE APPROVAL Reviewed and approved by the Short Subdivision Committee and hereby certified for filing this 7 day of /n2w. , 20 p S Chai ; rson, - ho Su •division Committee VICINITY MAP NO SCALE 15255 Sunwood Blvd. EMMETT C. DOBBS, Tukwila, . LS. Wash. CERT. NO. 17663 206 243 -0427 DATE OCTOBER 5, 2007 JOB NUMBER 0706011 SHEET , Suite A -41 98188 BILL FOX 206 433 -1738 MOBILE 206 949 -7529 1 OF 5 ADDRESS: 3601 MARGINAL WAY S.W. CITY /STATE/ZIP: SEATTLE, WA 98106 City of Tukwila Department of Community Development 6300 Southcenter Boulevard, Tukwila, WA 98188 Telephone (206) 431-3670 FAX (206) 431-3665 E-mail: tukplan(itukwila.wa.us SHORT PLAT NUMBER L04 -085 PORTION OF N.E. 1/4 OF S.E. 1/4, SEC. 15, TWP. 23 N., RGE. 4 E., W.M. KING COUNTY, WASHINGTON LOT1 THAT PORTION OF GOVERNMENT LOT 1. SECTION 15, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M., IN KING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS; COMMENCING AT NE SOUTHWEST CORNER OF SAID LOT 1: THENCE N 01'30'53' E ALONG THE WEST. UNE OF SAID LOT 1 A DISTANCE OF 225.01 FEET TO THE TRUE POINT OF BEGINNING; THENCE CONTINUING N 0130'53' E ALONG THE WEST UNE OF SAID WEST UNE 85.70. FEET; THENCE S 48'35'16' E, 86.51 FEET; THENCE S 1737'40' E. 74.17 FEET; THENCE N 6529'36' W, 87.39 FEET; THENCE N 5917'00' W, 11.73 FEET, MORE OR LESS, TO THE POINT OF BEGINNING. (CONTAINS 5,591.5 S.F. OR 0.128 ACRES) LOT 2 A PORTION OF GOVERNMENT LOT 1, SECTION 15, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M., IN KING. COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS COMMENCING AT THE SOUTHWEST CORNER OF SAID LOT 1; THENCE N 01'30'53" E ALONG THE WEST. LINE OF SAID LOT 1 DISTANCE OF 310.71 FEET; THENCE S 48'35'16' E A DISTANCE OF 86.51 FEET TO THE TRUE POINT OF BEGINNING; THENCE -S 6529'36' E. 35.76 FEET; THENCE. EAST, 27.37 FEET; THENCE S 56'37'39" E, 36.83 FEET; THENCE S 4818'19' E, 35.89 FEET; THENCE S 47'34'08' . W, 11.36 FEET, THENCE S 76'48'29' W, 43.51 FEET, THENCE S 53'24'06' W, 38.61 FEET, THENCE N 2439'48' W, 31.80 FEET, THENCE N 1737'40" W, A DISTANCE OF 74.17 FEET TO THE POINT OF BEGINNING. (CONTAINS 5,536.8 S.F. OR 0.127 ACRES) LOT3 A PORTION OF GOVERNMENT LOT 1, SECTION 15, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M., IN KING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS: COMMENCING AT THE SOUTHWEST CORNER OF SAID LOT 1; THENCE N 01'30'53" E ALONG THE WEST UNE OF SAID LOT 1 A DISTANCE OF 169.32 FEET TO THE TRUE POINT OF BEGINNING; THENCE CONTINUING N 0130'53' E ALONG SAID WEST LINE OF LOT 1 A DISTANCE OF 55.69 FEET; THENCE S 5917'00'. E, 11.73 FEET; THENCE S 6529'36' E. 87.39 FEET, THENCE S 2439'48' E, 76.47 FEET, THENCE N 6529'36' W, 135.16 FEET, MORE OR LESS, TO THE POINT OF BEGINNING. (CONTAINS 5,848.9 S.F. OR 0.134 ACRES) LOT 4 A PORTION OF GOVERNMENT LOT 1, SECTION 15, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M., IN KING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS: COMMENCING AT THE SOUTHWEST CORNER OF SAID LOT 1; THENCE N 01'30'53' E ALONG THE WEST LINE OF SAID LOT 1 A DISTANCE OF 101.97 FEET TO THE TRUE POINT OF BEGINNING; THENCE CONTINUING N 0130'53' E ALONG SAID WEST LINE OF LOT 1 A DISTANCE OF 67.35 FEET; THENCE S 6529'36' E. 135.16 FEET, THENCE S 24'39'48" E, 12.69 FEET, THENCE S 82'42'44" W, 101.93 FEET, THENCE N 6529'35" W, 31.82 FEET, MORE OR LESS, TO THE POINT OF BEGINNING. (CONTAINS 5,793.7 S.F. OR 0.133. ACRES) OWNER(S): REHABITAT NORTHWEST, INC. A DRAWN BY GLD; CHECKED BY ECD LOT5 A PORTION OF GOVERNMENT LOT 1, SECTION 15, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M., IN KING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS: COMMENCING AT NE SOUTHWEST CORNER OF SAID LOT 1; THENCE N 0130'53' E ALONG THE WEST LINE OF SAID LOT 1 A DISTANCE OF 30.00 FEET TO THE TRUE POINT OF BEGINNING; THENCE CONTINUING N 0130'53' E ALONG SAID WEST UNE OF SAID LOT 1 A DISTANCE OF 71.97 FEET; THENCE S 6529'35' E, 31.82 FEET; THENCE N 82'42'44" E, 23.72 FEET; THENCE S 6529'35' E. 32.09 FEET; THENCE S 17'21'54" E, 54.75 FEET, MORE OR LESS, TO INTERSECT A UNE 30 FEET NORTH AND RUNNING PARALLEL TO THE SOUTH LINE OF SAID LOT 1; THENCE N 87'48'48' W ALONG SAID PARALLEL LINE 100.01 FEET TO THE POINT OF BEGINNING. (CONTAINS 5,542.7 S.F. OR 0.127 ACRES) LOT 6 A PORTION OF GOVERNMENT LOT 1, SECTION 15, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M., IN KING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS: COMMENCING AT THE SOUTHWEST CORNER OF SAID LOT 1; THENCE N 0130'53' E ALONG THE WEST UNE OF SAID. LOT 1 30.00 FEET; THENCE S 87'48'48' E ALONG A LINE 30 FEET NORTH AND PARALLEL TO THE SOUTH LINE OF SAID LOT 1 A DISTANCE OF 100.01 FEET TO .THE TRUE POINT OF BEGINNING; THENCE CONTINUING S 87'48'48' E ALONG SAID PARALLEL LINE 81.04 FEET; - THENCE N 1253'16' W, 74.25 FEET; THENCE S 7737'51" W, 27.48 FEET; THENCE N 24'39'48" W, 13.31 FEET; THENCE S 82'42'44' W, 78.20 FEET; THENCE S 6529'35' E. 32.09 FEET; THENCE S 1721'54' E, 54.75 FEET, MORE OR LESS, TO THE POINT OF BEGINNING. (CONTAINS 6,163.3 S.F. OR 0.142 ACRES) TRACTA (OPEN SPACE) THAT PORTION OF GOVERNMENT LOT 1, SECTION 15. TOWNSHIP 23 NORTH. RANGE 4 EAST, W.M., IN KING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS: COMMENCING AT THE SOUTHWEST CORNER OF SAID LOT 1; THENCE N 0130'53' E ALONG THE WEST LINE OF SAID LOT 1 30.00 FEET; THENCE S 87'48'48" E ALONG A LINE PARALLEL AND 30 FEET NORTH OF THE SOUTH UNE OF SAID LOT 1 A DISTANCE OF 181.05 FEET TO THE TRUE POINT OF BEGINNING; THENCE CONTINUING S 87'48'48' E ALONG SAID PARALLEL UNE 136.63 FEET; THENCE N 59'49'07" E. 204.79 FEET; THENCE N 29'00'36' W, 168.40 FEET; THENCE N 8220'06' W, 244.54 FEET; THENCE N .3325'06' W, 141.82 FEET; THENCE S 5420'54" W, 65.26 FEET; THENCE N 8829'08' W, 30.00 FEET; THENCE S 01'30'53" W, 71.24 FEET; THENCE S 48'35'16" E, 86.51 FEET; THENCE S 6529'36' E. 35.76 FEET; THENCE EAST, 27.37 FEET; THENCE S 56'37'39' E, 36.83 FEET; THENCE S 4818'19" E, 35.89 FEET; THENCE S 47'34'08' W, 11.36 FEET; THENCE S 76'48'29' W, 43.51 FEET; THENCE S 5324'06' W, 38.61 FEET; THENCE S 2439'48" E, 70.67 FEET; THENCE N 77'37'51" E, 27.48 FEET; THENCE S 12'53'18' E, 74.25 FEET, MORE OR LESS, POINT OF BEGINNING. (CONTAINS 93,145.7 S.F. OR 2.138 ACRES) PER RECORDING NUMBER 20071011001093 15255 Sunwood Blvd., Suite A -41 Tukwila, Wash. 98188 EMMETT C. DOBBS, P.LS. BILL FOX CERT. NO. 17663 206 433 -1738 SURVEYING. - S MAPPING 206 243 -0427 MOBILE 206 949 -7529 OCTOBER 5, 2007 SCALE 1 = 40' JOB NUMBER 0706011 SHEET VOLUME 2 C.L.2PACE 0 0 2 OF 5 1 I' S. m 139TH S`T (PAVED) z, I _ 14HN 3 . 1-2e LAND SURVEYOR'S CERTIFICATE O • U 1 - r v \ • - 87'48'48' 'E S. /40T1 T r (PA ) g n r FAR7P OJT_ 13 12 , . s, \\ f \ \ \\ , \. \ \\ s • l,s 'C • /• REGISTERED AS A LAND SURVEYOR BY THE STATE OF WASHINGTON. CERTIFY THAT THIS PUT IS BASED ON. AN ACTUAL SURVEY OF THE LAND DESCRIBED HEREIN. CONDUCTED BY ME OR UNDER MY SUPERNSION: THAT THE DESTANCES. COURSES AND ANGLES ARE SHOWN HEREON CORRECTLY: AND IN CONFORMANCE WITH THE REQUIREMENTS OF THE SURVEY 515311 REC ORDINNG AT THE REQUEST OF ( RQJ IN L OF 2004. I TIFICATE NO 10749 A PORTION OF GOVERNMENT LOT 1, SECTION 15, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M. 11faC4DA ROAD i (PAVED) r / / / - , /20 is 7 • / i / ; � '- 9 / 8 / ; `~ / / / ,15 + ` „`_ s mo w = - � .\ z `�r__ ,.off �_-. 9� ' O'Y0 TER UI�d 15E — ` 7-. � ) ■ \` �• .\,/:., .. -'r -4------ - 1 _ 150 J � / i \ 0 \ \ \ , \ g • •� \ i ; 72? s ib.. �* . _ _ -_,":1-7.- \ / �.• o ' „ f \ \ \ \\ ot , ‘ , s . _ , ..,./, , 170 I ?CT' :-._/ _ ______.. ............/ \ - .‘ ,,\/‘ ,, . \ , ,,. - .....1 -:-....-----: -7.---"—'-- ‘‘ \.:,., , :,,,, ... _ \ ` \' 2 \ = '_ _ ----••• , - , -23,-..,/ T \ 9Q \ ‘: \ \ ‘: � -**(N.‘ ; \ 87 \ T- ' 180 - - 160 E ‘J ,. ' � J2 iQ \ 1 � I L . 140 ✓' \ \\ �Kd 3b . BUFFER \ N 0, �\ — t / < � mil A . „ VA CATED \ 30, S.F. , ;�\ - 1 ),v/ - \ '- '' / ' - -t•.. f``v»tLand � �'°o \ \\ 7(((((,((‹C . ` \ ?0 p z .. �,•, %��_ -_ , \\ \\ \. \\I11, �\. �,, — r "✓ \\\� \1Ifr ` ti `s \ ` , ` a Vs Y1 ,III°\ I1 ...----...e-, 1�����I11l. I � .,.' I 1, o 1I o - UTIUT1ES: WATER SEWER TELEPHONE POWER & GAS CABLE OWNER /APPLACANT R. S. 'DICK' PEDERSEN (OWNER) . . P.O. BOX 1518 MARYSNU.E. WA.. 98270 TEL # (360) 659 -0808 10749 fcls10 ° C A( . I.M OPINES 5/30/05 DRAWN BY: 'sY CHECKED 811 ihc DATE: 12/20/04 SCALE: 1 " = 50' FILE NUMBER PROJECT SURVEYOR: (FIELD TOPOGRAPHY & BOUND BARFETT CONSULTING GROUP (EARTH TECH) 720 SOUTH 333RD STREET SUITE 200 FEDERAL WAY, WA.. 98003 TEL. # (206) 838 - 6202 LEGAL DESCRIPTIONS: EXISTING: A PORTION OF GOVERNMENT LOT 1, SECTION 15. TOWNSHIP 23 NORTH. RANGE 4 EAST. W.M., IN KING COUNTY, WASHINGTON. DESCRIBED AS FOLLOWS: LOTS 17 TO 27, IINaUSVE, BLOCK 1 AND LOTS 1 TO 7, MCWSVE. BLOCK 2, HELILHG'S ADDITION TO FOSTER. ACCORDING TO THE UNRECORDED PLAT THEREOF. TOGETHER WITH VACATED 5 »t iw ADJO NNG. AFTER SHORT PLAT: . LOTS 1 TO 6 AND TRACT 99 OF' SHORT FLAT/LOT CONSOLIDATION AS PER THE RECORD OF SURVEY. SEE APPUCATION ATTACHMENT FOR THE FULL. DESCRIPTION. TOGETHER WITH AND SUBJECT TO EASEMENTS AS PER aiL. DRAWINGS BY PACE AND AS APPROVED BY THE OTT OF TUKWRA SITE DEVELOPMENT PLAN SEE CIVIL CRAWMGS PREPARED BY PACE, SHEETS 1 THRU 11. DATED MAY 2004, FOR DEVELOPMENT DETALS OF GRADING. DRAINAGE. LOT ACCESS AND UTILITY LOCATIONS EASEMENT DOCUMENTS WLL BE PROVIDED FOR LOCATIONS SHOWN AFTER THE CIVIL PLANS HAVE BEE4 APPROVED BY THE CITY OF TUK ILA. TREE LOCATIONS ARE SHOWN ON am!. PUN S60:TS. SHORT PLAT DATA AREA OF SHE: 127,198 SF (2.92 ACRES) WETLAND AREA: TOTAL WETLAND AREA: 11.107 SF TOTAL OPEN SPACE AREA PROPOSED: 92.570 SF TOTAL AREA OF WETLAND BUFFETC 30.939 SF UND USE ZONE - MDR, MINIMUM LOT SIZE - 6500 SF PER TMC EFF. 12/4/95 ALLOWABLE MINIMUM LOT AREA - 5.525 SF AREA OF RIGHT- OF-WAY PUBLIC - 0 SF ETOSRNG NUMBER OF LOTS - 16 PROPOSED NUMBER OF BUILDING LOTS 6 MINIMUM LAT WIDTH - 50' - AVERAGE 1WDTH OPEN SPACE AREA TOTAL OPEN SPACE AREA - 92.570 SF TOTAL OPEN SPACE AREA PROPOSED - 72.78% OF SITE REQUIRED OPEN SPACE AREA FOR PRO 0 20% - 25.439 SF. CONTACT PERSON: JOHN B. FRIEL (SURVEYOR) JBMF CONSULTING ENGINEER P.O BOX 27 EVERETT. WA.. 98206 TEL y6 (425) 771 -3692 SHORT PLAT MAP FOSTER RIDGE (AKA HELLWIG ADDITION) CITY OF TUKWILA RECEIVED OW OF Ti IKWIIa DEC 21 2004 PERMIT CENTER OWNER(S): REHABITAT NORTHWEST, INC. ADDRESS: 3601 MARGINAL WAY S.W. CITY /STATE/IP: SEATTLE, WA 98106 PHONE: 206 932 -7355 GLD CHECKED BY ECD 15255 Sunwood EMMETT C. DOBBS, P.L.S. . CERT. NO. 17663 206 243 -0427 DATE OCTOBER 5, 2007 SCALE 1 " = 40' Blvd.. Suite A -41 Wash. 98188 BILL FOX 206433 -1738 MOBILE 206 949 -7529 JOB NUMBER 0706011 SHEET 3 OF 5 City of Tukwila Department of Community Development 6300 Southeenter Boulevard, Tukwila, WA 98186 Telephone (206) 431-3670 FAX (206) 431.3665 Email: tukplan('tukwila.wa.us SHORT PLAT NUMBER L04 -085 EASEMENT NO. 1 AN EASEMENT FOR INGRESS, EGRESS, SEWER AND UTIUTIES, OVER. UNDER, ALONG AND ACROSS THAT PORTION OF GOVERNMENT LOT 1. SECTION 15; TOWNSHIP 23 NORTH. RANGE 4 EAST, W.M., IN KING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS: COMMENCING AT THE SOUTHWEST CORNER OF SAID LOT 1; THENCE N 0130'53' E ALONG THE WEST LINE OF SAID LOT 1 30.00 FEET TO THE TRUE POINT OF BEGINNING; THENCE CONTINUING N 0130'53' E ALONG SAID WEST LINE A DISTANCE OF 25.00 FEET TO THE BEGINNING OF A 35.00 FOOT RADIUS CURVE TO THE RIGHT; THENCE NORTHEASTLERY ALONG SAID CURVE WITH A CENTRAL ANGLE OF 8111'51' AN ARC LENGTH OF 49.60 FEET TO A POINT OF TANGENCY. THENCE N 82'42'44' E, 23.37 FEET; THENCE S 65'29'35" E, 32.09 FEET; THENCE S 1721'54' E, 3.15 FEET; THENCE S 82'42'44' W. 5L20 FEET TO THE BEGINNING OF A 15.00 FOOT RADIUS CURVE TO THE LEFT; THENCE SOUTHWESTERLY ALONG SAID CURVE WITH A CENTRAL ANGLE OF 8111'51" AN ARC LENGTH OF 21.26 FEET TO A POINT OF TANGENCY; THENCE S 01;30'53' W, 25.23 FEET, MORE OR LESS, TO INTERSECT A LINE 30 FEET NORTH AND PARALLEL TO THE SOUTH LINE OF SAID LOT 1; THENCE N 87'48'48' W. 20.00 FEET TO THE POINT OF BEGINNING. PER RECORDING NUMBER 20071011001094 EASEMENT NO. 2 AN EASEMENT FOR INGRESS, EGRESS, SEWER AND UTILITIES. OVER, UNDER, ALONG AND ACROSS THAT PORTION OF GOVERNMENT LOT 1, SECTION 15, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M., IN KING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS: COMMENCING AT THE SOUTHWEST CORNER OF SAID LOT 1; THENCE N 0130'53 E ALONG THE WEST LINE OF SAID LOT 1 169.32 FEET TO THE TRUE POINT OF BEGINNING; THENCE CONTINUING N 0110'53' E ALONG SAID WEST LINE OF LOT 1 'A DISTANCE OF 55.69 FEET; THENCE S 5917'00' E. 45.00 FEET; THENCE S 30'43'00' W, 20.00 FEET; THENCE N 59'17'00" W, 10.91 FEET; THENCE S 01'30'53' W, 30.09 FEET; THENCE N 6529'36' W. 21.73 FEET TO THE POINT OF BEGINNING. PER REOCRDING NUMBER 20071011001095 EASEMENT NO. 3 AN EASEMENT FOR INGRESS, EGRESS, SEWER AND UTILITIES, OVER, UNDER, ALONG AND ACROSS THAT PORTION OF GOVERNMENT LOT 1. SECTION 15, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M., IN KING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS: COMMENCING AT THE SOUTHWEST CORNER OF SAID LOT 1; THENCE N 01'30'53" E ALONG THE WEST UNE OF SAID LOT 1 261.65 FEET TO THE TRUE POINT OF BEGINNING; THENCE CONTINUING N 0130'53' E ALONG SAID WEST LINE OF LOT 1 A DISTANCE OF 38.03 FEET; THENCE S 6529'36" E. 10.00 FEET; THENCE S 24'30'24" W, 15.00 FEET; THENCE S 6529'36" E, 68.46 FEET; THENCE S 1717'40' E. 26.97 FEET; THENCE N 6529'36' W, 81.70 FEET TO THE POINT OF BEGINNING. PER RECORDING NUMBER 20071011001096 PORTION OF N.E. 1/4 OF S.E. 1/4, SEC. 15, TWP. 23 N., RGE. 4 E., W.M. KING COUNTY, WASHINGTON EASEMENT NO. 4 AN EASEMENT FOR UTILITIES 10 FEET IN WIDTH HAVING 5 FEET OF SUCH WIDTH ON EACH SIDE OF THE CENTERLINE OF GRANTEE'S SYSTEMS LOCATED, OVER, ALONG, ACROSS. AND UNDER THE FOLLOWING DESCRIBED REAL PROPERTY: THAT PORTION OF SAID GOVERNMENT LOT 1, SECTION 15, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M., IN KING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS: COMMENCING AT THE SOUTHWEST CORNER OF SAID LOT 1; THENCE N 0130'53' E ALONG THE WEST LINE OF SAID LOT 1 A DISTANCE OF 307.45 FEET TO THE TRUE POINT OF BEGINNING; THENCE S 66'39'59' E, 79.41 FEET; THENCE N 38'43'04' E, 93.45 FEET. PER RECORDING NUMBER 20071011001102 EASEMENT NO. 5 THAT PORTION OF SAID GOVERNMENT LOT 1. SECTION 15, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M., IN KING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS: COMMENCING AT THE SOUTHWEST CORNER OF SAID LOT 1; THENCE N 01'30'53' E ALONG THE WEST LINE OF SAID LOT 1 A DISTANCE OF 302.06 FEET TO THE TRUE POINT OF BEGINNING; THENCE S 6639'59' E, 90.1 FEET; THENCE S 2414'33' W, 40.4 FEET; THENCE N 6521'48' W, 73.98 FEET; THENCE N 0130'53' E, 41.70 FEET TO THE TRUE POINT OF BEGINNING TOGETHER WITH THE FOLLOWING DESCRIBED REAL PROPERTY AS FOLLOWS: AN EASEMENT FOR PRIVATE STORM FACILITIES 5 FEET IN WIDTH HAVING 2.5 FEET OF SUCH WIDTH ON EACH SIDE OF THE CENTERUNE OF GRANTEE'S SYSTEMS LOCATED. AS CONSTRUCTED OR TO BE CONSTRUCTED, EXTENDED OR RELOCATED ON THE PROPERTY, EXCEPT THOSE PORTIONS OF THE PROPERTY OCCUPIED BY EXISTING BUILDING FOOTINGS, FOUNDATIONS, AN /OR SUBSURFACE STRUCTURES. COMMENCING AT THE SOUTHWEST CORNER OF SAID LOT 1; THENCE N 0130'53' E ALONG THE WEST LINE OF SAID LOT 1 285.3 FEET TO THE TRUE POINT OF BEGINNING; THENCE S 27'27'59" E, 17.74 FEET; THENCE S 65'2'51' E. 54.00 FEET; THENCE S 30'3'52' E, 41.00 FEET; THENCE S 6910'45' W, 47.00 FEET: THENCE S 20'37'32' W, 53.00 FEET; THENCE S 11'51'4" E. 42.00 FEET; THENCE S 6013'17' E, 43.00 FEET. PER RECORDING NUMBER 20071011001097 PER RECORDING NUMBER 20071011001101 PER RECORDING NUMBER 20071011001097 PER RECORDING NUMBER 20071011001098 EASEMENT NO. 6 THAT PORTION OF SAID GOVERNMENT LOT 1, SECTION 15, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M., IN KING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS: COMMENCING AT THE SOUTHWEST CORNER OF SAID LOT 1; THENCE N 01'30'53' E ALONG THE WEST LINE OF SAID LOT 1 A DISTANCE OF 30.00 FEET TO THE TRUE. POINT OF BEGINNING; THENCE N 01'30'53' E, 23.27 FEET; THENCE S 41'55'17' E, 27.77 FEET; THENCE N 8912'15' E. 132.93 FEET; THENCE S 68'53'06' E, 31.58 FEET; THENCE N 87'48'48' W, 181.68 FEET TO THE TRUE POINT OF BEGINNING. EASEMENT NO. 7 THAT PORTION OF SAID GOVERNMENT LOT 1, SECTION 15, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M., IN KING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS: COMMENCING AT THE SOUTHWEST CORNER OF SAID LOT 1; THENCE N 0130'53' E ALONG THE WEST UNE OF SAID LOT 1 A DISTANCE OF 302.06 FEET TO THE TRUE POINT OF BEGINNING; THENCE S 66'39'59" E, 90.1 FEET; THENCE S 2414'33' W, 40.4 FEET; THENCE N 6521'48' W. 73.98 FEET; THENCE N 01'30'53' E, 41.70 FEET TO THE TRUE POINT OF BEGINNING. EASEMENT NO. 8 THAT PORTION OF GOVERNMENT LOT 1, SECTION 15, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M., IN KING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS: COMMENCING AT THE SOUTHWEST CORNER OF SAID LOT 1; THENCE N 01'30'53' E ALONG THE WEST LINE OF SAID LOT 1 A DISTANCE OF 30.00 FEET TO THE TRUE POINT OF BEGINNING; THENCE N 0130'53' E ALONG THE WEST LINE OF SAID LOT 1 A DISTANCE OF 235.35 FEET; THENCE S 13'52'06' E, 63.33 FEET; THENCE S 00'0'0" W. 98.32 FEET; THENCE S 15'0'0' W, 27.07 FEET; THENCE S 00'0'0' W, 49.87 FEET; THENCE N 87' 48'48 W, 14.40 FEET TO THE TRUE POINT OF BEGINNING. VOLUME „2t4„), PAGE 0/0 WETLAND SETBACK LINE UNE BEARING DISTANCE WS-Ll N 10'3343" E 27.42' WS-L2 N 1708'02 W 86.51' WS-L3 N 67'40'05' W 45.69' WS-L4 N 44'5254' W 10.61' WS-L5 N 30 1 2'15 W 19.00' WS-L6 N 1219'30 W 19.00' WS-L7 N 1449'24' E 40.06' WS-L8 N 48'3704* E 11.60' WS-L9 S 51'57'56' E 3500' WS-L10 N 5417'32 E 32.91' WS-L11 N 6448'25" E 36.58' WS-L12 N 4826'31' E 1.19' WETLAND BUFFER UNE UNE BEARING DISTANCE WB-L1 N 10'33'43" E 28.30' WB-L2 N 17'08'02' W 37.39' WB-L3 N 67'40'05' W 48.39' W8-L4 N 44'52'54" W 7.30' WB-L5 N 3012'15 W 16.14' WI3-L6 N 1219'30 W 15.01' WB-L7 N 14'49'24" E 34.61' WB-L8 S 51'57'56" E 34.20' WB-L9 N 5417'32" E 39.49' WB-L10 N 6448'25' E 37.09' WB-L11 N 48'26'31" E 6.62' EASEMENT NUMBER 1 LINE TABLE LINE BEARING DISTANCE El-L1 N 01'30'53" E 25.00' El-Li N 8242'44" E 23.37' E1-L3 S 6529'35' E 32.09' El-L4 S 17-21'54- E 3.15' E1-L5 S 8242'44" W 51.20' E1-L6 S 01'30'53" W 25.23' E1-L7 N 87'48'48" W 20.00' EASEMENT NUMBER 3 LINE TABLE LINE BEARING DISTANCE E3-L1 N 6529'36" W 10.00' E3-L2 N 24'30'24' E 15.00' E3-L3 N 6579'36" W 68.46' E3-L4 S 17'37'40' E 26.97' E3-L5 N 65'29'36' W 81.70' E3-L6 N 0130'53" E 38.02' EASEMENT NUMBER 2 LINE TABLE LINE BEARING DISTANCE E2-L1 N 01'30'53' E 55.69' E2-I.2 S 591 7'00' E 45.00' E2-L3 S 3043'00' W 20.00' E2-L4 N 591 700" W 10.91' E2-L5 S 01'30'53' W 30.09' E2-L6 N 6529'36" W 21.73' EASEMENT NUMBER 1 CURVE TABLE CURVE RADIUS LENGTH DELTA El-C1 35.00' 49.60' 8111'51' E1-C2 15.00' 21.26' 8111'51' csJ 017: a-1 City of Tukwila Department of Community Development 6300 Southeenter Boulevard, Tukwila, WA 98188 Telephone (206) 431-3670 FAX (206) 431-3665 E-mail: tukplanOtulovIla.wa.us SHORT PLAT NUMBER L04-085 LOT ADDRESSES: Lot 1 - 4602 South 139th Street Lot 2 - 4606 South 139th Street Lot 3 - 4601 South 139th Street Lot 4 - 4605 South 139th Street Lot 5 - 4612 South 140th Street Lot 6 - 4618 South 140th Street N 87'49'34' W 1319.28' (R)(M) POR110N OF N.E. 1/4 OF S.E. 1/4. SEC. 15, TWP. 23 N., RGE. 4 E., W.M. KING COUNTY, WASHINGTON S 8819 E 30.00' I Z z ° I 16 27 I c 4. ..: 30' 1., a! T L SOUTH 139TH STREET (OPEN) - 12 S 6529'35' E 31.82' 0 N R.R. SPIKE (R) SW. CORNER OF GOVERNMENT LOT 1 NOT !FOUND 6/1/07 - N 8748'48 W 1320 . 3 25(K.C.A.S.) 1320.33(C) I S5917 00 E ' S 111 73 Ss LOT 1 8) , * Z1), w vv ) 0 ., LOT 3 - 4 61 WS -L7 & E2-L4 • N .1. 4 1 --46 WB-L7 wa-La i 1101 * 0 4 I I V 7j ( wsws1;3: I 2172. 101.93 (71 I ET el Fs' ,c- Of I wi I S 6529'35' E ; - ti 32.09' LOT 5 L,J1 E1-L7' 100.01' S . LOT 2 N 24'39'48" W 31.80' `0-j1 e 78.21 WS-L4 * E1-L4 LOT 6 t S, ) 101 :: us. 11 I. Tv% 81.04' / r 28.03' 0 0 E3-L1 E3-12 S 6529'36' E 35.76' N 9000'00 E 27.37' S 5637'39" E 36.83' S 4818'19" E 35.89' 'en WB-L6 WB-L5 WB-L4 WS-L12 - WB-L11 ..-••• .5 W ;11.35 WB-L10 S 76'48'29" W *3.51' S 5324'06" W S 2419'48" E 70,67' N 24'39'48" W S 24'39'48" E /13.31' WETLAND LIMIT N 11 7737'5, 4 E 27.48' 1 / i , . P" 136.63' TRACT A OPEN SPACE AND WETLANDS 0 ° o. u■ SOUTH 144TH STREET OWN ER(S): REHABITAT NORTHWEST, INC. ADDRESS: 3601 MARGINAL WAY S.W. CITY/STATE/ZIP: SEATTLE, WA 98106 PHONE 206 9324355 I • . Ab N‘ N 87'48'4r W 317.613' EXISTING PAVING b SOUTH 140TH STREET ENDS HERE (NOT OPEN) OVERALL SITE MAP WITH WETLAND LIMIT, WETLAND BUFFER AND EASEMENTS 1, 2 & 3 M.I.C. 0.345' EAST N 87'49'34 W OF 1/16 CORNER 7318.59N) i \1____ 31 0.93 . (K.C.A.S.) SURVEYING S MAPPING S 8220 '06' E 244.54. * NOTE: FUTURE ACTIVITTES WITHIN THE WETLAND BUFFER AND SETBACK ARE STRICTLY LIMITED UNDER TMC 18.45 "ENVIRONMENTALLY SENSITIVE AREAS" AS THE CHAPTER CURRENTLY EXISTS AND AS MAY BE AMENDED IN THE FUTURE. THESE RESTRICTIONS SHALL BE BINDING UPON SUCCESSORS AND ASSIGNS OF THE PARTIES AND SHALL RUN WITH THE LAND. THE OWNER AGREES NOT TO REMOVE ANY OF THE NATIVE VEGETATION AND MAINTAIN THE FENCE INSTAL ITD TO DESIGNATE THE BUFFER Imo 23 ENHANCMENT AREA. SCALE 1" = 40' C2TOBER 5, 2007 LEGEND 15 y • 14 22 23 15 I=0=1 22 VOLUmE,2 y a PAGE 0 1 I EXIS11NG MONUMENT IN CASE = EXISTING MONUMENT IN CASE = EXISTING MONUMENT IN CASE (46TH AVENUE SOUTH & SOUTH 144TH STREET MONUMENT IN CASE CALCULATED DISTANCE MEASURED DISTANCE DISTANCE PER RECORD SURVEY KING COUNTY AERIAL SURVEY DATUM 15 255 Sunwood Blvd., Suite A-41 Tukwila, Wash. 98188 • EMMETT C. DOBBS, P.L.S. BILL FOX CERT. NO. 17663 206 433-1738 206 243-0427 MOBILE 206 949-7529 JOB NUMBER 0706011 0 20 40 ISS!!1 SCALE 1 = 40' SHEET 4 OF 5 EASEMENT NUMBER 5 LINE TABLE UNE BEARING DISTANCE E5 -L1 S 27'27'59' E 17.74' E5 -L2 S 65'02'51' E 54.00' E5 -L3 S 30'03'52' E 41.00' E5-L4 S 6910'45' W 47.00' E5 -L5 S 2037'32' W 53.00' E5 -L6 S 11'51'04' E 42.00' E5-L7 S 6013'17' E 43.00' EASEMENT NUMBER 8 LINE TABLE LINE BEARING DISTANCE E8 -L1 N 01'30'53' E 235.35' EB -L2 S 13'52'06' E 63.33' E8 -L3 S 00'00'00" E 98.32' E8 -L4. S 15'00'00' W 27.07' EB -L5 S 00'00'00' E 49.87' EB -L6 N 87'48'48' W 14.40' EASEMENT NUMBER 6 LINE TABLE UNE BEARING DISTANCE E6 -L1 N 01'30'53' E 23.27' E6 -L2 S 41'55'17" E 27.77' E6 -L3 N 89'12'15' E 132.93' E6 -L4 S 68'53'06" E 31.58' E6 -L5 N 87'48'48' W 181.68' EASEMENT NUMBER 7 LINE TABLE UNE BEARING - DISTANCE E7 -L1 S 66'39'59' E 90.10' E7 -L2 S 2414'33' W 40.40' E7 -L3 N 65'21'48' W 73.98' E7 -L4 N 0130'53" E 41.70' EASEMENT NUMBER 4 LINE TABLE LINE BEARING DISTANCE E4-L1 S 6639'59' E 79.41' E4 -L2 N 38'43'04' E 93.45' City of Tukwila Department of Community Development 6300 Southcenter Boulevard, Tukwila, WA 98168 Telephone (206) 431.3670 FAX (206) 4314665 E -mail: tukpian(dltukwila.wa.us SHORT PLAT NUMBER L04 -085 S 88'29'08" E 30.00' LOT 4 E5 -L6 E5 -L7 d EXISnNG PAVING o SOUTH 140TH S END _ � E6_L5 (NOT OPEN) EET LOT 5 E6 -L2 E5 -L4 LOT 3 E5 -L5 PARTIAL SITE MAP WITH EASEMENTS 4, 5 & 6 ADDRESS: E4 -L2 THIS PORTION OF EASEMENT E -5 DESCRIBED WITHIN EASEMENT E -7 (STORM DRAINAGE VAULT) SEE SHEET 4 OF 5 FOR CONTINUATION OF CONTROL MONUMENTIION SEE SHEET 4 OF 5 FOR CONTINUATION OF CONTROL MONUMENTTION 27 SOUTH 139TH STREET (OPEN) 12 U, 0 E6 -L1 R.R. SPIKE (R) S W. CORNER OF COV€RNMENT LOT I NOT 'FOUND 6/1/07 1 -L - V N 87'48'48' W 1320.325(K.aA,S) 1320.33'(C) PORTION OF N.E. 1/4 OF S.E. 1/4, SEC. 15, TWP. 23 N., RGE. 4 E., W.M. KING COUNTY, WASHINGTON 3601 MARGINAL WAY S.W. CITY /STATE/ZIP: SEATTLE, WA 98106 PHONE: 206 932-7355 TRACT A OPEN SPACE AND WETLANDS OWNER(S): REHABITAT NORTHWEST, INC. E6 -L4 GLD CHECKED BY ECD T SOUTH 139TH STREET 1 (OPEN) 1 — — 12 R.R. SPIKE (R) S1 W. CORNER OF GOV€RNMENT LOT 1 NOT FOUND 6/1/07 ' 4 I VOLUME a IQ PAGE 0 �� 0 20 40 ERVai SCALE 1" = 40' TRACT A OPEN SPACE AND WETLANDS S 88 '29'08" E 30.00' N 87'48'46" W 0 E8 -L5 N 87'48'48' W 317,68' • 132 0.325(K.CA.S) \\ o EXISTING PAVING o SOUTH 140TH STREET 1320.33'(C) �"� _ ENDS HERE ' (NOT OPEN) SURVEYING 9 MAPPING DRAWN BY PARTIAL SITE MAP WITH EASEMENTS 7 & 8 15255 Sunwood Blvd., Suite A -41 Tukw EMMETT C. DOBBS, P.LS. i l a, Wash. 98188 CERT. NO. 17663 206 243 -0427 DATE OCTOBER 5, 2007 SCALE 1 " =40' JOB NUMBER 0706011 SHEET BILL FOX 206 433 -1738 MOBILE 206 949 -7529 5 OF 5 • d y0 $I% ProosMlon & Installation Rot.' 1. Man r Ma tb.0 In plena% wwbMpwnd /Iearly-Md Sump. PreservePreserveM n.U. Webb. wail PIw°1p o res 0 b het Moan b4l1010• wean*10MI D. nal damage ow mit%r.0»tws .4n.00Og emanne1. Moose a.0. pent debts al.10 2. Mr 4ww.. nmp.M%011Srlb0rn w pbm.b u .b pa4a.re dab am rd Mtn IppIIse0101pbd00 411 ands Mould be debited wllmn 1-21 on 00 M%. Herbicide seed must Se 0Prawe b ma _ wand 0o roe. e.0. Xoeb. HerbicideppbOm Maw 10042 M done 1 Me *unmet Nursed ft when removes Into tot mat atom. 3. PO405 net be dune at 0.tlb me 10 04010 .104 herbicide herbicide wasedea. Mal 1 3 • 451 9 ..rho 4. Plante *an ldb pWrIts PP 0m 0 0. Tits M .*Iol. 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Y 0o4b mantl Ina • Ole ban el organic dl totaled Man b noels neon p a,. rMa w00� COno mulch 10 4.1, Ypban wts%M aMINpleb arm %Twamre m kt drarnfwence of bunk Toni e 701 mew 0 1 0 101 peepan b. eep r.nat.malen. yds.tl .250D p e n ent a s-• ya need required required to r41c1 penlS%rob • tll • 2B w. . 1 ..I.rlip 210 p 0. plaM%.I.S..QIM 7. needed for 7. o to ate b.n 0 y. M Mode, soil moisture) •a apIidb.m molding. od ca1fw lly In Me Myw. r is not sweaty to 1000rpory.Hawn. 0. . p Mmag 1 011002. y. 0402n • elm or 141 YO b rep.0o nee e dcl node Marl. 0000.0 14 Muol 1 1,ory. emamendy dr. 0r04r%ra.!/ . R aMpwH1 e .410 as 06d. t wee* a1..da y .. Rbb 0000 n.a4pb t Harmlm 01. M 0 11 .200310 dea�r4.rnp.stwa.ml.b 1 0 0000 . elm ...PPP 3.P PPP. • Apothem Pe 11. 2 4 13 b.mu. n10p00on 0.00 Y softwood pwp4n 136.63'' LOT 1 LOT 6 28.03' .R. SPIKE CR) 5. . CORNER OF GOV Nl1ENT LOT I NO FOUND 6/1/01 EXISTING PAVING ENDS 1-IERE N 87° 48'48" W 317.68' SOUTH 140TH STREET (NOT OPEN) S1rWT»P. S0 40500041400'P.G0Y Ta010be4a'e II *Vow 1010 11'0.0. 1 10 ■ S*.000,y 1 010 1,'0.0. 12 2m lei Plerbr,y 1001 14 0 11 ■ 11.000,4 1001 3.4 6 1e linden Peon 1010 14 0.0. t 15 & R6 2S o.biry 1010 140.0. 24 T2 T..YShub TN. S3. Am Moons 0400.100.3. Tots) O1y %00'0 Gamer Fr 1001 0 0.0. 12 24 TIiOWprry 1001 2.20.0. 20 . 40 MWSIO+Erry 1001 2,7 0.0. e0 150 S 88' 29'08" E 30.00'- SOUTH 13STI-1 STREET (OPEN) N 81 W I 1 320.33'(C) 2 0'06" 24 4.54' Legal Description: Project Address: 45XX S139th Street Tukwila, WA 98168 Tax Parcel: 3229200090 Project Number: 04 -0085 -_ 6 - Lot Subdivision Project Owner: Rehabitat Northwest, Inc. 3601 W Marginal Way SW Seattle, WA 98106 Contact Person: Chad Detwiller Office: (206) 932 -7355 Fax: (206) 933 -7355 Direct: (425) 829 -5298 0 0 0 E U m . w w >> w cc 0) U m 2 Ctf I.J. •1 -- ' a) E Q) U Li) -C C ti w CN T M , O N 1 4 _ / U O c E _ - O O O 'mo O Z ap o cac SHORT PLAT NUMBER LoLI-opS DECLARATION Know all men by these present that we, the undersigned, owner(s) in fee simple of the land herein described do hereby make a short subdivision thereof pursuant to RCW 58.17.060 and acknowledge that said subdivision shall not be further divided in any manner within a period of five years, from date of record, without the filing of a final plat. The undersigned further declare this short plat to be the graphic representation of said short subdivision and the same is made with the free consent and in accordance with the desire of the owner(s). in witness f _ . - - set our hands and seals. Name, A Name: Name• 6J`fD`f`0P AC) Qa Name: STATE OF WASHINGTON County of King On this day personally appeared before m to me known to be the individual who executed the within and foregoing instrument and acknowledged that he/she signed the same as his/her voluntary act and deed for the uses and purposes therein mentioned. GiVEN under my hand and official seal s I� da of4UV1e , 20 01 City of Tukwila Deportment of Community. Development 6300 Southcenter Boulevard, Tukwila, WA 98188 Telephone (206) 431 -3670 FAX (206) 431 -3665 ,E- maiitukoionOtukwla.wa.ug - Signature: Name as commissioned: kX Ct Title: N1 cfar y My appointment expires: •7 ! c - ) 0 STATE OF WASHINGTON County of King On this day personally appeared before me '1>onnO.. 1 • {fie d er en to me known to be the Individual who executed the within and foregoing instrument and acknowledged that he/she signed the same as his/her voluntary act and deed, for the uses and purposes therein mentioned. GIVEN under my hand and official seal day oftl, 20 07 I ( �. Gai�'YYY� Signature: � Name as comm1issioned: ' LnrCk Title: N V I ar y My appointment expires: 7 -1 - ID SURVEY IN N.E 1/4 OF S.E. 1/4 OF SECTION 15 T. 23 N.,R. 4 E., W.M., IN KING COUNTY, WASHINGTON Icing County Manager LAND SURVEYOR'S CERTIFICATE l F .,..e.�C , registered as a land surveyor by the State of Was ' n, certify that this plat is based on an actual survey of the land described herein, ponducted by me or under my supervision; that the distances, courses and angles are shown hereon correctly; and that monuments other than those monuments approved for setting at a later date, have been set and lot corners staked on the ground as depicted on the plat. RECORDING CERTIFICATE. Fled for record at the request of the City of Tukwila this day of 20 past M and recorded In Volume of Plats, on page - recd of King County, Washington. Supt. of Records and Elections PORTION OF N.E. 1 /4- OF. .E. 1 /4, SEC.. 15, TWP. 23 N., RGE. 4 E., W.M. KING COCJNTY;1 WASHINGTON LEGAL DESCRIPTION (OLD): • THAT PORTION OF GOVERNMENT LOT 1, SECTION. 15, TOWNSHIP 23 NORTH, RANGE 4 EAST, . W.M., iN' KING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWSe> COMMENCING AT THE SOUTHWEST CORNER OF SAID LOT 1; THENCE N 01'30'53' E. FOR A DISTANCE OF 30.00 FEET TO THE TRUE POINT. OF BEGINNING; THENCE S 87'48'48' E, PARALLEL WITH THE SOUTH UNE OF SAID LOT 1, A DISTANCE OF 317.68 ,FEET; THENCE N 59'49'07' E FOR A DISTANCE OF 204.79 FEET; THENCE N 29100'36' • W FOR A DISTANCE OF 168.40 FEET THENCE N .82'20'06" W FOR A DISTANCE OF 244.54 FEET; . THENCE N 33'26'06" W FOR A DISTANCE OF 141.82 FEET; THENCE S 54'20'54' W FOR A DISTANCE OF 65.26 FEET; 'THENCE N 88'29'07' W FOR A DISTANCE OF 30.00 FEET; THENCE S 01'30'53' W FOR A DISTANCE OF 351.95 FEET TO THE TRUE POINT OF BEGINNING. (ALSO KNOWN AS LOT 1 OF CITY OF TUKWILA BLA L04 -033 RECORDED UNDER. KING COUNTY RECORDING NUMBER 20060712900003). BASIS OF BEARINGS: SOUTH UNE OF NORTHEAST QUARTER. OF SOUTHEAST QUARTER OF SECTION 15, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M. IN KING COUNTY, WASHINGTON. I' REFERENCE SURVEYS: BOOK 155, PAGE 122 BOOK 155, PAGE 197 BOOK 205, PAGE 242 BOOK .138,PAGE 252 SURVEYOR'S NOTES: 1. INSTRUMENTATION FOR THIS SURVEY WAS A 1 SECOND THEODOUTE (NIKON MPL -332) AND ELECTRONIC DISTANCE MEASURING UNIT. TRAVERSE METHODS USED IN PERFORMING SURVEY MEETS OR EXCEEDS MINIMUM STANDARDS OF WAC 332-130-090. 2. PROPERTY IS. SUBJECT TO 1.RMS, RESTRICTIONS, EASEMENTS AND CONDITIONS CONTAINED WITHIN CITY OF TUKWiLA BLA NO. L04 -033, RECORDED UNDER KING COUNTY RECORDING NUMBER 20060712900003. 3. PROPERTY IS SUBJECT TO EASEMENTS, COVENANTS, TERMS AND CONDITIONS OF INSTRUMENTS RECORDED UNDER KING COUNTY RECORDING NUMBERS 7805161076 AND 20060421000207. LOT AREAS: LOT 1 LOT 2 LOT 3 LOT 4 LOT 5 LOT 6 OPEN SPACE 5,591.4 SF 5,536.8 SF 5,849.0 SF 1. 5,793.8 SF 5,542.7 SF 6,163.3 SF 93,145.7 SF OWNER(S): RICHARD S. PEDERSEN .` ADDRESS: P.O. BOX 1518 CITY /STATE/ZIP: MARYSVILLE, WA 98270 PHONE: 360 659 -0808 DRAWN BY GLD APPROVALS KING COUNTY FINANCE DIVISION I certify that all property taxes are paid and that a deposit has been made in sufficient amount to pay the taxes for the following year that there are no delinquent special assessments certified to this office for collection; and that all special assessments on any of the property herein dedicated as streets, alleys, or for other public use are paid in full This day of King County Treasurer KING COUNTY ASSESSOR'S APPROVAL Examined and approved by the Department of Assessments this day of King County Assessor Parcel Number(s) 322920 -0090 20 TUKWILA SHORT SUBDIVISION COMMITTEE APPROVAL - Reviewed and approved by the Short Subdivision Committee and hereby certified for filing this day of , 20 Chairperson, Short Subdivision Committee SURVEYING 8 MAPPING 20 Deputy King County Treasurer , Deputy Assessor 15255 Sunwood Blvd., , Suite A -41 Tukwila, Wash. 98188 - EMMETT C. DOBBS, P.LS. BILL FOX CERT. NO. 17663 206 433 -1738 206 243 -0427 MOBILE 206 949 -7529 DATE MAY 28, 2007 VICINITY MAP NO SCALE VOLUME PAGE JOB NUMBER 0706011 City of Tukwila Department of Community Development 6300 Southcenter Boulevard, Tukwila, WA 98188 Telephone (206) 431 -3670 FAX (206) 431 -3665 E -m ailtukpian Otukwita.wa.0 s SHORT PLAT NUMBER ___LQ.'L4.8� EASEMENT NO. 1 AN EASEMENT FOR INGRESS. EGRESS, SEWER AND UTILITIES. OVER, UNDER, ALONG AND ACROSS THAT PORTION OF GOVERNMENT LOT 1, SECTION 15, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M., IN KING COUNTY, WASHINGTON, DESCRIBED _ AS FOLLOWS: COMMENCING AT THE SOUTHWEST CORNER OF SAID LOT 1; THENCE N 01'30'53" E ALONG THE WEST UNE OF SAID LOT 1 30.00 FEET TO THE TRUE POINT OF. BEGINNING; THENCE CONTINUING N 0130'53' E ALONG SAID WEST LINE A DISTANCE OF 25.00 FEET TO THE BEGINNING OF A 35.00 FOOT RADIUS CURVE TO THE RIGHT; THENCE NORTHEASTLERY ALONG SAID CURVE WITH A CENTRAL ANGLE OF 8111'51' AN ARC LENGTH OF 49.60 FEET. TO A POINT OF TANGENCY. THENCE N 82'42'44" E. 23.37 FEET; THENCE S 65'29'35" E. 32.09 FEET; THENCE S 17'21'54' E, 3.15 FEET; THENCE S 82'42'44' W, 51.20 FEET. TO THE BEGINNING OF A 15.00 FOOT RADIUS CURVE TO THE LEFT; THENCE SOUTHWESTERLY ALONG SAID CURVE WITH A CENTRAL ANGLE OF 8111.51 ". AN ARC LENGTH OF 21.26 FEET. TO A POINT. OF TANGENCY; THENCE S 01'.30'53' W, 25.23 FEET, MORE OR LESS, TO INTERSECT A UNE 30. FEET NORTH AND PARALLEL TO THE SOUTH UNE OF SAID LOT 1; THENCE N 87'48'48' W. 20.00 FEET TO THE POINT OF BEGINNING. EASEMENT NO. 2 AN EASEMENT FOR INGRESS,' EGRESS. SEWER AND UTILITIES, OVER. UNDER, ALONG AND ACROSS THAT PORTION OF GOVERNMENT LOT 1, SECTION 15, TOWNSHIP 23 NORTH, RANGE 4 EAST; W.M., IN KING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS: AT THE SOUTHWEST CORNER OF SAID LOT 1; THENCE N 0130'53' E ALONG THE WEST LINE OF SAID LOT 1 169.32 FEET TO THE TRUE POINT OF BEGINNING; THENCE CONTINUING N 0130'53' E ALONG SAID WEST UNE OF LOT 1 A DISTANCE OF 55.69 FEET; THENCE S 5917'00 E, 45.00 FEET; THENCE S 30'43'00" W, 20.00 FEET; THENCE N 5917'00' W. 10.91 FEET; THENCE S 01'30'53' W. 30.09 FEET; THENCE N 65'29'36' W. 21.73 FEET TO THE POINT OF BEGINNING. EASEMENT NO. 3 AN EASEMENT FOR INGRESS, EGRESS. SEWER AND UTILITIES. OVER. UNDER, ALONG AND ACROSS THAT PORTION OF GOVERNMENT LOT 1, SECTION 15, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M., IN KING COUNTY, WASHINGTON. DESCRIBED AS FOLLOWS: COMMENCING AT THE SOUTHWEST CORNER OF SAID LOT 1; THENCE N 01 E ALONG. THE WEST UNE OF SAID LOT 1 261.65 FEET TO THE TRUE POINT OF BEGINNING; THENCE CONTINUING N 01'30'53" E ALONG SAID WEST LINE OF LOT 1 A DISTANCE OF 38.03 FEET; THENCE S 65'29'36" E. 10.00 FEET; THENCE S 24'30'24" W, 15.00 FEET; THENCE S 65'29'36" E. 68.46 FEET; THENCE S 17'37'40" E, 26.97 FEET; THENCE N 65'29'36' W, 81.70 FEET TO THE POINT OF BEGINNING. PORTION OF N.E. 1/4 OF S.E. 1/4, SEC. 15, TWP. 23 N., RGE. 4 E., W.M. KING COUNTY, WASHINGTON LOT 1 THAT PORTION OF GOVERNMENT LOT 1, SECTION 15, TOWNSHIP 23 NORTH. RANGE 4 EAST, W.M., •IN KING COUNTY. WASHINGTON, DESCRIBED AS FOLLOWS: COMMENCING AT. THE SOUTHWEST CORNER OF SAID LOT 1; THENCE N 01'30'53' E ALONG THE WEST UNE OF SAID LOT 1 A D TANCE OF 225.01 FEET TO THE TRUE POINT OF BEGINNING; THENCE CONTINUING N 01'30'53" $.ALONG THE WEST LINE OF SAID WEST LINE 85.70 FEET; THENCE S "48'35'16' E, 86.51 FEET; THENCE S 17'3740' E. 74.17 FEET; THENCE N 65'29'36 W, 87.39 FEET: THENCE N 5917'00' W, 11.73 FEET, MORE OR LESS, TO THE POINT OF BEGINNING. (CONTAINS 5,591.5 S.F. OR 0.128 ACRES) LOT2 A PORTION OF GOVERNMENT LOT 1. SECTION 15, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M., IN KING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS: COMMENCING AT. THE SOUTHWEST CORNER OF SAID LOT 1; THENCE N 01'30'53" E ALONG THE WEST LINE OF SAID LOT 1 A DISTANCE OF 310.71 FEET; THENCE S 48'3516' E A DISTANCE OF 86.51 FEET TO THE TRUE POINT OF BEGINNING; THENCE S 65'29'36" E, 35.76 FEET; THENCE EAST, 27.37 FEET; ' THENCE S 56'37'39" E. 36.83 FEET; THENCE S 4818'19' E. 35.89 FEET; THENCE S 47'34'08' W, 11.36 FEET, THENCE S 76'48'29' W, 43.51 FEET, THENCE S 5374'06' W, 38.61 FEET, THENCE N 2439'48' W, 31.80 FEET, THENCE N 173740' W, A DISTANCE OF 74.17 FEET TO THE POINT OF BEGINNING. (CONTAINS 5,536.8 S.F. OR 0.127 ACRES) LOT 3 A PORTION OF GOVERNMENT LOT 1, SECTION 15, TOWNSHIP 23 NORTH. RANGE 4 EAST, W.M., IN KING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS: COMMENCING AT THE SOUTHWEST CORNER OF SAID LOT 1; THENCE N 0130'53' E ALONG THE WEST LINE OF SAID LOT 1 A DISTANCE OF 169.32 FEET TO THE TRUE POINT OF BEGINNING THENCE CONTINUING N 01'30'53 ". E ALONG SAID WEST LINE OF LOT 1 A DISTANCE OF 55.69 FEET; THENCE S 5917'00' E, 11.73 FEET; THENCE S 65'29'36' E, 87.39 FEET, THENCE S 24'39'48' E, 76.47 FEET, THENCE N 65'29'36' W. 135.16 FEET, MORE OR LESS, TO THE POINT OF BEGINNING. (CONTAINS 5,848.9 S.F. OR 0.134 ACRES) LOT 4 A PORTION OF GOVERNMENT LOT 1, SECTION 15, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M., IN KING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS: COMMENCING AT THE SOUTHWEST CORNER OF SAID LOT 1; THENCE N 01'30'53' E ALONG THE WEST LINE OF SAID LOT 1 A DISTANCE OF 101.97 FEET TO THE TRUE POINT OF BEGINNING; THENCE CONTINUING N 01'30'53' E ALONG SAID WEST UNE OF LOT 1 A DISTANCE OF 67.35 FEET THENCE S 85'29'36" E,' 135.16 FEET, THENCE S 24'39'48' E, 12.69 FEET, _. THENCE S 82'42'44 " - W, 101.93 FEET, THENCE N 65'29'35" W, 31.82 FEET, MORE OR LESS, TO THE POINT. OF BEGINNING. (CONTAINS 5,793.7 S.F. OR 0.133 ACRES) OWNER(S): RICHARD S. PEDERSEN ADDRESS: P.O. BOX 1518 CITY /STATE/ZIP:' MARYSVILLE, WA 98270 PHONE: 360 659-0808 LOT 5 A PORTION OF GOVERNMENT LOT 1, SECTION 15, TOWNSHIP 23 NORTH, RANGE 4 EAST. W.M., IN KING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS: COMMENCING AT THE SOUTHWEST CORNER OF SAID LOT 1; THENCE N 01'30'53" E ALONG THE WEST LINE OF SAID LOT 1 A DISTANCE OF 30.00 FEET TO THE TRUE POINT OF BEGINNING; THENCE CONTINUING N 01'30'53' E ALONG SAID WEST LINE OF SAID LOT 1 A DISTANCE OF 71.97 FEET; THENCE S 6579'35' E, 31.82 FEET; THENCE N 82'42'44' E, 23.72 FEET: THENCE S 65'29 E, 32.09 FEET; THENCE S 17'21'54" E. 54.75 FEET, MORE OR LESS, TO INTERSECT A LINE 30 FEET NORTH AND RUNNING PARALLEL TO THE SOUTH LINE OF SAID LOT 1; THENCE N 8748'48" W ALONG SAID PARALLEL LINE 100.01 FEET TO THE POINT, OF BEGINNING. (CONTAINS 5,542.7 S.F. OR 0.127 ACRES) LOT6 A PORTION OF GOVERNMENT LOT 1, SECTION 15, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M., IN KING COUNTY, . WASHINGTON, DESCRIBED AS FOLLOWS: COMMENCING AT THE SOUTHWEST CORNER OF SAID LOT 1; THENCE N 01'30'53' E ALONG THE WEST LINE OF SAID LOT 1 30.00 FEET; THENCE S 8748'48" E ALONG A UNE 30 FEET NORTH AND PARALLEL TO THE SOUTH LINE OF SAID LOT 1 A DISTANCE OF 100.01 FEET TO THE TRUE POINT OF BEGINNING; THENCE CONTINUING S 87'48'48' E ALONG SAID PARALLEL LINE 81.04 FEET: THENCE N 12'53'18" W, 74.25 FEET; THENCE S 7737'51' W, 27.48 FEET; THENCE N 24 W, 13.31 FEET; THENCE S 82'42'44' W, -78.20 FEET; THENCE S 65'29'35" E. 32.09 FEET; THENCE S 17'21'54" E, 54.75 FEET, MORE OR LESS, TO THE POINT OF BEGINNING. (CONTAINS 6,163.3 S.F. OR 0.142 ACRES) TRACT A (OPEN SPACE) THAT PORTION OF GOVERNMENT LOT 1, SECTION 15, TOWNSHIP 23 NORTH, RANGE 4 EAST, . W.M., IN KING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS: COMMENCING AT THE SOUTHWEST CORNER OF SAID LOT 1; THENCE N 0130'53'. E ALONG THE WEST LINE OF SAID LOT 1 30.00 FEET; THENCE S 87'48'48' E ALONG A. LINE PARALLEL AND 30 FEET NORTH OF THE SOUTH LINE OF SAID LOT 1 A DISTANCE OF 181.05 FEET TO THE TRUE POINT OF BEGINNING; THENCE CONTINUING S 8748'48' E . ALONG SAID PARALLEL UNE 136.63 FEET; THENCE. N 59'49'07" E. 204.79 FEET; THENCE. N 29'00'36" W, 168.40 FEET; THENCE N 82 W, 244.54 FEET; THENCE N 33'26'06" W, 141.82 FEET; THENCE S 54'20'54' W, 65.26 FEET; THENCE N 88'29'08" W, 30.00 FEET; THENCE S 01'30'53" W, 71.24 FEET; THENCE S 48'35'16" C. 86.51 FEET; THENCE S 65'29'36' E, 35.76 FEET; THENCE EAST, 27.37 FEET; THENCE S 56'3739' E, 36.83 FEET; THENCE S 4818'19' E, °35.89 FEET; THENCE 5 4734 W. 11.36 FEET; THENCE S 76'48'29' W, 43.51 FEET; THENCE S 53•24'06 W, 38.61 FEET THENCE S 24'39'48' E, - 70.67 FEET; THENCE N 77'37'51" E, 27.48 FEET; THENCE S 12'53'18' E, 74.25 FEET, MORE POINT OF BEGINNING. (CONTAINS 93,145.7 S.F. OR 2.138 ACRES) DRAWN BY GLD CHECKED BY ECD DAT M AY 28,: 2007 SCALE 1" = 40' VOLUME: PAGE 15255 Sunwood Blvd.,. Suite A -41 Tukwila, ,. Wash. 98188 EMMETT C. DOBBS, P.LS. CERT. NO. 17663 SURVEYING' S MAPPING 206 243 -0427 BILL FOX 206 433 -1738 MOBILE 206 949 -7529 JOB NUMBER 0706011 SHEET 2 OF 3 WETLAND BUFFER LINE UNE BEARING DISTANCE WB -L1 N 10'33'43" E 27.42' WB -L2 N 17'08'02' W 86.51' WB -L3 N 67'40'05' W 45.69' WB -L4 N 44'52'54" W 10.61' W8 -L5 N 3012'15' W 19.00' W8 -L6 N 1219'30' W 19.00' •B -L7 N :14'49'24' E 40.06' WB -L8 N 48'37'04" E 11.60' W3-L9 S 51'57.'56' E 35.00' WB -L10 N 5417'32" E 32.91' WB -L11 N 64'48'25' E 36.58' W8 -L12 N 48'26'31' E 1.19' WETLAND LIMIT LINE UNE BEARING DISTANCE WL -L1 N 10'33'43' E 28.30' WL -L2 N 17'06'02" W 37.39' WL -L3 N 67'40'05" . W 48.39' WL -L4 N 44'52'54" W 7.30' W_-L5 N 30'12'15" W 16.14' 11L-L6 N 12'19'30' W 15.01' WL -L7 N 14'49'24" E 34.61' WI_-L8 S 51'57'56' E 34.20' WL -L9 N 5417'32' E 39.49' WL -L10 N 64'48'25' E 37.09' WL -L11 N 48'26'31' E 6.62' EASEMENT NUMBER 1 LINE TABLE UNE BEARING DISTANCE El -L1 N 01'30'53' E 25.00' Et -L2 N 82'42'44" E 23.37' El -L3 S 6579'35" E 32.09' E1 -L4 S 17'21'54" E 3.15' E1 -L5 S 82'42'44' W _ 51.20' E1 -L6• S 01'30'53" W 25.23' E1 -L7 N 87'48'48' W 20.00' EASEMENT NUMBER 3 LINE TABLE UNE BEARING DISTANCE E3 -L1 N 65'29'36' W 10.00' E3 -L2 N 24'30'24" E 15.00' E3 -L3 N 6529'36' W 68.46' E3 -L4 S 1717'40' E 26.97' E3 -L5 N 65'29'36' W 81.70' E3 -L6 N 01'30'53' E 38.02' EASEMENT NUMBER 2 LINE TABLE UNE BEARING DISTANCE E2 -L1 N 01'30'53' E 55.69' E2 -L2 S 5917'00' E 45.00' E2 -L3 S 30'43'00' W 20.00' E2 -L4 N 5917'00' W 10.91' E2 -L5 S 0110'53' W 30.09' E2 -L6 N 65'29'36' W 21.73' EASEMENT NUMBER 1 CURVE TABLE CURVE RADIUS LENGTH DELTA El-C1 35.00' . 49.60' 8111'51' E1 -C2 15.00' 21.26' 8111'51' City of Tukwila Department of Community Development 6300 Southcenter Boulevard, Tukwila, WA 98188 Telephone (206) 431 -3670 FAX (206) 431 - 3665 E- mailtukplan®tukwila.wa.ug SHORT PLAT . NUMBER LOT ADDRESSES: LOT 1 LOT 2 LOT 3 LOT 4 LOT 5 LOT 6 OPEN SPACE 0 8S + - 12 N 87'49'34" W 1319.28' (R)(M) S 65'29'35" E 31.82' R.R. SPIKE (R) 51W CORNER OF GOV€RNMENT LOT 1 NOT FOUND 6/1/07 ` I 1 rn N � I`• 1 I S59 TOLOOTEI S 8g 111.71 3' F?� 9 J6.WB -L8 w C2T% F w j �� LOT 3 87 N t- WL -L7 ---f�' w l 2� WL -L5 1/0 W8 -L7 f E2 -L4 tP c O N 24'39'48' W 31.80' O. LOT 2 In M 10 79 1 J r I . 13 WB -L6 - \ 1 LOT 4 t ! WEI -L5 I 'M82'42'44'E `� \ 23.72 � . 101.93' i-- • , . I E1-L f1 � C � C G /y 6- 1 -5_ - - - - € t �S 65'29'35' E 32.09 w w I . LOT 5 E1 -L71 100.01' 78.21 w e E to w8 -L4 1 -L4 • `�'t , LOT6 `01 . 1 10) • ` 1 J� E Y ai cr. • cn 81.04 1 � 28.03' ta :n 0 0 z S e . s>, F E3 -L1 E3 -L2 EXISTING PAVING ENDS HERE to F Ss S 65'29'36' E 35.76' N 90'00'00' E 27.37' S 56'37'39" E 36.83' S 4818'19" E 35.89' WL -L6 WL -L5 WL -L4 N 8748'48' W ' 317.68' SOUTH 140711 STREET (NOT OPEN) P .:1 1y 22 14 I- h 23 W13-L12 WL -L11 S 47'34'08" W WL -L10 S 76'48'29" W S 53'24'06" W S 24'39'48" E N , 24'39'48" W S 24'39'48" E z Q8 136.63' 11.36' 43.51' 38.61' 76.47' 12.69' 13.31' N 77'37'51' E 27.48' 2 44.54' TRACT A OPEN SPACE AND WETLANDS A A ti to 0 20 40 SCALE 1" = 40' PORTION OF N.E. 1/4 OF S.E. 1/4, SEC. 15,: TWP. 23 N., RGE. 4 E., W.M. KING COUNTY, WASHINGTON S 88'29'08' E 30.00' T L S - OUTH 139711 • STREET • (OPEN) 1 - 0 r: N 87'48'48' W 1320.325(K.C.A.S.) 1320.33'(C) SOUTH 144TH STREET OWNER(S): RICHARD S. PEDERSEN ADDRESS: P.O. BOX 1518 CITY /STATE/ZIP: MARYSVILLE, WA 98270 PHONE: 360 659 -0808 M.I.C. 0.345' EAST N 87'49'34` W OF 1/16 CORNER 1318.59'(M) 1318.93' ( K.C.A.S) CHECKED BY ECD S 8270'06' E 15 22 (VOLUME PAGE LEGEND 14 23 EXISTING MONUMENT IN CASE 15 a EXISTING MONUMENT IN CASE 22 e9 _ EXISTING MONUMENT IN CASE (46TH AVENUE SOUTH de SOUTH 144TH STREET M.I.C. MONUMENT IN CASE (C) CALCULATED DISTANCE (M) MEASURED. DISTANCE (R) DISTANCE PER RECORD SURVEY (K.C.A.S.) KING COUNTY AERIAL SURVEY DATUM 15255 Sunwood Blvd., Suite A -41 Tukwila, Wash. 98188 EMMETT C. DOBBS, P.LS. CERT. NO. 17663 206 243 -0427 DATE MAY 28, 2007 BILL FOX 4 206 433-1738 MOBILE 206 949 -7529 JOB NUMBER 0706011 SHEET 3 OF 3 RECEIVED (;TTY OF TI IK1Mt A DEC 2 1 2004 PERMIT CENTER DECEMBER 2004 LEGAL DESCRIPTION FOSTER RIDGE SIX LOT BOUNDARY UNE ADJUSTMENT; A PORTION OF GOVERNMENT LOT 1, SECTION 15, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M., IN KING COUNTY, WASHINGTON. DESCRIBED AS FOLLOWS: LOTS 17 TO 27. INCLUSIVE. BLOCK 1 AND LOTS 1 TO 7. INCLUSIVE, BLOCK 2. HELLWIG'S ADDITION TO FOSTER, ACCORDING TO UNRECORDED PLAT THEREOF. VERTICAL DATUM. NGVD -1929 CONVERSION FROM NGVD -1929 TO NAVD -88 IS +3.58' (TYPICAL) NGVD -1929 100.00= NAVD - 88 103.58 OW NER/OEVt10PETt SURVEYOR GEOIEpRNCAL ENGINEER ONE ENGINEER OMITS OF CLEARING TOTAL SITE ACREAGE EXISTING NUMBER OF LOTS PROPOSED NUMBER OF LOTS OVERALL DENSITY MINIMUM LOT WIDTH PROPOSED USE EXISTING ZONING AVG LOT SIZE SMALLEST LOT 9ZE DRAINAGE BASIN WATERSHED NAME EXISTING IMPERVIOUS AREA PROPOSED IMPERVIOUS AREA SCHOOL. DISTRICT FIRE DISTRICT WETLAND AREA TOTAL WETLAND AREA TOTAL OPEN SPACE AREA PROPOSED TOTAL AREA OF WETLAND BUFFER OPEN SPACE AREA: TOTAL OPEN SPACE AREA TOTAL OPEN SPACE AREA PROPOSED REQUIRED OPEN SPACE AREA FOR PRD 0 20% SHEET INDEX: C1 COVER SHEET C2 SITE PLAN C3 C4 C5 C6 C7 C8 C9 C10 C11 L1 L2 11,107 SF 92,570 SF 30,939 SF SF 72.765 OF SITE 25,439 SF TESCP PLAN GRADING PLAN STORM DRAINAGE PLAN STORM DRAINAGE PROFILE A, B & C STORM DRAINAGE PROFILE D & E NOTES AND TESCP DETAILS STORM DRAINAGE NOTES & DETAILS MISCELLANEOUS NOTES & DETAILS COMPOSITE UTILITY PLAN TREE REMOVAL PLAN TREE REPLACEMENT PLAN PERMIT REVIEW DRAWINGS R.S. PEDERSEN P.O. BOX 1518 MARYSVILLE, WA 98270 (380)659 -0808 , (FIELD TOPOGRAPHY & BOUNDARY) BARRETT CONSULTING CROUP (EARTH TECH) 720 SOUTH 333rd STREET, SUITE 200 FEDERAL WAY. WA 98003 (425)455 -9494 (SUPPLEMENTAL) JBMF CONSULTING ENGINEERS P.O. BOX 27 EVERETT, WA 98208 (425) 771 -3892 ASSOCIATED EARTH SCIENCES, INC. 911 FIFTH AVENUE CUITE 100 KIRKLAND, WA 98033 (425) 827 -7701 PENHALLEGON ASSOCIATES CONSULTING ENGINEERS, INC. 750 SIXTH STREET SOUTH KIRKLAND, WA 98033 (425) 827 -2014 0.80 ACRES 2.87 ACRES '8 6 2.09 LOTS /ACRE 50 FEET SINGLE FAMILY RESIDENTIAL UNCLE FAMILY RESIDENTIAL 5,735 SF 5,537 SF DUWAMISH RIVER DUWAMISH -GREEN RIVER .43 SF 13,500 SF TUKW ILA SCHOOL DISTRICT NO. 408 CITY OF TUKWILA CaII before you Dig. 1- 800 - 424 -5555 UNDERGROUND SERVICE (USA) Vicinity Map Notice Required Contractors shall notify operators who maintain underground utility !Ines M the area of proposed excavation or bloating at Most two business days, but not more than ten working days prior to commencement of excavation or demolitIon In accordance with RCW Title 19. Names and telephone numbers of the operators of underground utility lines In this project appear below. These numbers shall also be used to serve In an emergency conditions as required. PUGET SOUND ENERGY Gas Company PUGET SOUND ENERGY Power Company Coll Before You Dig Notes Restoration Bond Amount Performance Bond Amount S Scale =NTS Phone VAL -WE SEWER DISTRICT (208)242 -3236 Sanitary Sewer WATER DISTRICT 1125 (206)242 -9547 Water District (800)321 -4123 (800)321 -4123 DIAL -A -DIG 1- 800 - 424 -5555 Bonding Information Foster ` G nurse ;t 1. The Developer Is required to notify the City of Tukwila three days prior to t beginning of construction for a preconstruction conference and specifically request Inspection bet ore Inata beginning: lllnq REC EIV C A. of aiitoaon and erosion control meosu 6 y — ! O � B. Clearing and grubbing G Earthwork D. Installation of any underground utility E. Before placing subbase, bom or paving surfoce F. Installation of any forms or placing any concrete DEC 21200' COMMUNITY DEVELOPMENT w Site Plan Approval Approval of these plans is for construction of road and drainage improvements, site drainage & grading and temporary erosion control in the City of Tukwila. These plans do not authorize any other utility approval or improvements proposed in any State right of way. Site plan approval is void if the building permit has not been obtained or renewed within two years of approval. Boundary Line Adjustment plan approval Is void if the final Boundary Line Adjustment map is not recorded when the preliminory approval expires. Section Township a a n rl b 1151 To 1 I 1 131 Tox 212 Pa 19 ce 1 2 101 01040) nu 0 yb`v ^I > c c o DUO, ❑ ❑1M❑ Preliminary Short Plat Approval Resolution A Preliminary Map Approval Construction Permits Received Sanitary Sewer Water District Gas Company Power Company Telephone Other Date AGREEMENTS, PLAN REFERENCES, PERMITS ETC. Date Date Signature Emergency 911 Police— Fire — Rescue RECOMMENDED FOR APPROVAL Engineer Plan Reviewer Engineer Supervisor Signature as needed Signature as needed Signature as needed Other R.S. PEDERSEN Name P.O. BOX 1518, MARYSVILLE, WA 98270 Address and Zip Code HEEIE 012 210 012 310 01 240 01 2 0 0 012 010 Vnl -Vu 4125 P.S.F. P.S.F. APPROVED FOR CONSTRUCTION CITY OF TUKWILA Phone (360)659 - 0808 E2) A Corporation ❑ A Partnership ❑ An Individual PENHALLEGON ASSOCIATES CONSULTING ENGINEERS Name Phone 750 SIXTH STREET SOUTH KIRKLAND, WA 98033 (425)827 - 2014 Address and Zip Code JBMF CONSULTING ENGINEERS c Name � c P.O. BOX 27, EVERETT, WA U N O W 131 ❑ Address and Zip Code 0 A Corporation ❑ A Partnership ❑ An Individual (425)771 - 3892 Phone 2 n ` m m 5 e W c �U a O CV CV CO to CV Z W En J 0- w rt W 0 0) 0 CI. O 0 c L 0 U V 0) O a 01/1( /0e 1 • 4524 (PA VED rxYnmxuti 4525 _r>N 20.0' HAMMERHEAD & ACCESS ROAD 4526 20.0' HAMMERHEAD & ACCESS ROAD 20.0' INGRESS. EGRESS & UTIUTY EASEMENT LOT 6 & SEWER EASEMENT / \ \� \ \ \ \\ \ \ \ 20.0' INGRESS. EGR \ \ & UTILTY EASEMENT LOT 4 \ \ \ \ \ I \ I 1 - - -aa_ 4 - - \FAA VED),— • XISTINC .._?RIVEVVAY I \ i .71- \ \ \ \ \\ ▪ \ \\ \ \ \� \ ▪ \ \\ \ \\ ▪ \ \ \\ \ \ \ A r \ \ \ \\`\ \ \ \ \ 1 \ \ \ \ \ \ \\ \ \\ `\ .\\1"\\ \ ▪ \\ \ `\ \ \ \ \ \\ 6 N" \ \\ \ \ \ \\ \\ , ,\ 0\ `\ \\ \\ \\ \ �\ \ \ \ \ \ \ \\_. -1\''' \\: 2 \ \ , " 2 \ 30.0 ^ \ \ • • \ \ \ \ \ \ \ \ \ \ \ \\\ \ \\ \ \ ACATED +_ \ \ \. \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \\ . - _, 7 ROW \ \ \ \ \\ \\ %\ \ \ \� / / �\ \ \ \ -' \ \ \ \ 2 0.0' \ \, '\ \ �- \ \ \ \ \ INGRESS. \ \ \ \ . \ \ \ \ \ \ \ \ \ \ \\ EGRESS & \ j\ %5 \ \\ \� UTILITY \ \ _ ^ \ \ EASEENT LOT 2 & \ \ \ \ \ SEWER,EASEMENT N. \ \ \ \ \ r \/ 15.0' WATER EASEMEN IVY"' WATER EASEMENT' - \ � \ \ N. \\ 12.'0' . ACCESS ( \ ROAD 1 \ \ \ \ „..7 Ey DRIVEWAYS 1 / - - 9 ' M VED) I1 0 RECEIVED DEC 21 2004' COMMUNITY DEVELOPMENT \ \\; \ \ ` -`\ \ 3 1 ` \__ \ \ \•`•� \ { te�aa \ \ \ 1 \ 1 \ / \ ' \ \ \ \ \ \ \\\ _,__ _ _- v y / \ \ \ \ ` \ \ \ \ \ ` ` \ \ \ \ \ \\ _ _ \ ; ,afat \ \ 3 \‘„ lJ l�.� \ \ \ \\ \\ \ \ \ \ \ \I 1 I ! \ \ I \ / \ \ Ur d \ \ ■ I I \ �t\ ,.0,939 S.F. ` \ ' ' I ' r^ \\ \ I 1 y!J 1 1 I I( \ \ T / /� • \ \? 1 1I 1 1 / 'WGt 1dtld E C�g� -7 \ \ \\ \� \ \\ ( , / 1 / l /' J f I \ \ \ • • ST- - SPLIT RAIL FENCFrAND S6NAGE ' � \ \ \ \ \ \ \ \ \ PER MAO 11645.060.6 -ALONG EDGE OF - x \ \ \ \ 1 I { \ \ \ - WETLAND BUFFER_ EASEMEN f5 ONE LOTS / • \ 1 I ! ' ' l I I 1 - . 2. - 3, -- 4 - AND - 5 {r1?:� / - = (1'� \ ! ! f I ! I I I ! I \ \ ? ` �ff%9' _�._.- .".s•c C1'` 27 .a8�� ._`�✓\ /\9"' __ _ - 1 ia�f1 \ 1 ! ! j \ Il /� •�__ ___� -��� �'.� { .�_..f -•{ 1_ _ ,, r�d!1 `1' r\ \ \ \\ \ 1 1 1 4 1 \�\ l_ \ ' r^_1;3� f ' - I I i I I 1 \ n 1 I - � . {�� \ I \ • \ I { \ � I `\ ,. ` „ . \ \ ! 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CPU FILE: DATUM: DATE JULY 2003 SCALE 1"-20' FOSTER RIDGE SHORT PLAT SITE PLAN JDB NUMBER 98673.01 DWG NO. P8673SITE SHEET C2 of 11 2 101 IF TEMPORARY ) � s \ \\ \ \ \ ` NOTE SWALE. SEE DETAILe � \ � `'I''' �' \ <" \ r ` \ 3 � \ \ \\ ›...2, �` \ \\ \ \ \ 0 MK CHECK DAM. eesaa mere e,:..1 Prsa I \� +�� - \ ; °\ \ r - • � ,xa9 �s x'rac. a r"s.?n --- caw Errxsa e� 1 r \ \ �` \ ,\ \ \ � i \`\ '� � �'./ Itna � nr�e eee� M8 IMO 22" "" "" .:� l'''''.9 I ! � � \ t\ ) - fie \ \ ...w.%, t \ \ % ! ` �516 \ PIeE_AT.SrOD _s, 1 � O r / \ ! J `� ` \` \ \ _ � i 1 ,� BENDS AS'REO t—' � . %. � n � 3Q 1 I \ \ � � �__ �27., - .e. a r.K? \ ��e���ap� I CONTRJICTOR TO \ •y - „_ic + s�w�����r` ! PROTECT .EX. ' }}� \ �ie�eieieiei�i i SHADOW SSMH ! 7 PDRARY ....e e e i .lyG I SWSEE��DErAIL \ � r\ vti 1l � d ,e e e e e��.e_. e �e e .. \ ! � •�� -e a -i � e e e`r \ I �A \ : rx r e �e e s e e e�e e a �e - -- - - -- - - - - -- - _ 3D? L?"' P // ��e !� ieseowia ieieiee`. \ I �� � G7RAR e e e e e e e e � areeeeee\ ,_ � • e e e i e a s e ( x ,_ Ir1 S.6.G1 ;MIN D' 1 e 1a 4,$4.:. °o`er ` ` \ �- ia�j i se�e eoeieieiew \\ 1\ a\ TEMPORARY ROCIGED y. i °iei °i ei e � eie e I 20t LFl3 CONSTRUCTION \ e eee aeee eer i, ENTRANCE SEE DETAIL \ °eee 37 LF TEMPORARY \ �� � \ \ 18 50 SWALE SE DETAI \ INSTALL TEMPORARY CONSTRUCTION FENCE T Sr i, ` SF 1\ ` \/ t � ALONG WAITS OF CLEARING & GRADING WHERE \ \ j �\ a \\ / \ . . 8 � \ NO SILT FENCE REQUIRED (TYP.) SEE DETAIL \ � \ \ mo ( 4525 r,' 7.\ 74& \ \ \! \ � \ 13� \ � �� \. �\ \/\/\ ` \ \ l S ILT FEN W� _ \ ' \ 7 \ / \ \ DET AI L \ LIMITS OF \'•; \ �` \ '/ �\ _ GRUBBING AND \\ �E \ ' . 5,7Q`�, sF \ 7` 11 I \ \ \\ s �,'t 2 .7 2\ 3-, '-- �1 \ \^rte __ „"'- .°9. •' /\ \ \ \ eN 7U I \ RIVEWAY -.. _. ___INA vE(-) DESIGNED HPP DRANN HPP CHECKED PDC REVISED TO ACCOMODATE SD REVISIONS 4526 REVISED PER 050 COMMENTS REVISED PER OWNER RENEW COMMENTS REMSION 155 LF TEMPORARY SWALE. SEE DETAIL �E SiA'l9 v\ 30 LF TEMPORARY ry 12' SD CULVERT. S.0.01 ('MIN.)' / \ `\ \\ \ N \ \ \ \ \ \ \ \ ( \ \ \ \ \ \\ 1 `N \ \ \ \ \ \ \ \,.l \ \ \ \ \ \ I \ \ `\ \\ \\ \ \\ \ \ \\ \ \ y \ \ \ �\ \ \ \ \ \ \ \ \ \ \\ •\ I N\ \ \ \ \ \ \ \ \ MITS.CF \ `\ `\ \N \ CLEARING,AND - \ \ \ '\ 0\ \ \ \ \ \ \ \ \ \ \ \ GRUBeINGZ_TYP.) ...• `\ \ N N I \ • N `. `\ ` \ \ \ \ ` \ \ \ \ \ \ \ \ \ \ \ \ ' I rSILT FENCE \ \ \ \ ( } = \ \ \ ` \ \ \ \ SEE DETAIL \ \ \ \ \ \\ \ \ \\ �V / `„\ \ \ \ \ \ \ \ \ 0,\ \ \ CLEARINC \ �' \ P t \ \ \ \ \ \ \ \ NG(f ' N N \ \ "r a \ \ e � : \ \ \ ` ALl 1REES OU751DE LIMITS .OF \ \ \ 'N 1 \ ti x \ `< " „CLEARING &-GRADING TO REMAIN.- \ \ , \ \ N \ \* \ \ (TYP:) SHT LI OF 2 FOR -' — \. \ 1 jREE iROJECTION DETAIL di N� \ \ \ \ \ / — N \ N ` \ \ \ \ (TYP.)-SEE -D N \ \ \ N N N N 12/20/0 7/03 DATE HPP 34/13/OCHPP EPH BY PDC PDC PDC APP'D 01 APP,Y EX/ DRIVEWAYS / \ I 221 - - -213 S 340 'LF- TEMPORAR'ilj -- SWALE. SEE_DETAlk Engineering Planning Surveying Penhallegon Associates Consulting Engineers, Inc. 750 Sixth Street South Kirkland, WA 98033 www.paceengre.com PH: (425) 827 -2014 1 -800- 945 -8408 FAX: (425) 827 -5043 Kkkland . Seattle . Federal Way Portland 10 \—, 15 LF SILT FENCE SEE DETAIL PVC AT �5, dge / 9 - \r - , \ �; .I, 92, 7Q-- ;-P / fix ; = 'TEMPORARY SEDIMENT _ TRAP. SEE DETA © f / .CLEARING-AND- — GRUBBING(TYP.)— -- - -I R.S. PEDERSEN P.O. BOX 1518, MARYSVILLE, WA 98270 8 FIELD BOOK DAWN: X. INERT TRAP — — -OUTLET/SEE w __ _ ABM ___ _ N IMEN TRAP MAX WA SURFA - 185.04. - -IF FO STRUCTION OCCURS D(1RNO — - 'SURFACE -AREA (SA) PROVIDED R i 'SF OE 1 TO \ 3,0,939 S.F. ,'t) SURV. CPU FILE: REFERENCE INFORMATION DATE JULY 2003 SCALE 1"-20' 1'e 62 NN NN N _`_ -_ - r'-FS � \ \\\ \ \N� ■ ... ..- __ -. _ _, _, N. N \\ \. \ \ \ N - -r,7, -_ \\ N N \ \ N \ \ \ \ \ . \ \ \ \ \ \ \ \ N \ \ \ \\ \ \ \ \ (3 \ \ \ \ , \ \ i \ \ \ r ` \ 1 t l \\ \ \ \ 1 i \ \ \ 1 1 1 N \ 3 3 ( ' \ SA_REQUIRED_(2 —YR- STORM) 1M 30) - 1HE1{.THE SEDIMENT TRAP N \\\ \ \\ \\ 1 ( II 11 • (INCLUDES ALL CONTRIBUTING- OFFSIT EAS)- OUTLET =SNA B -PIPED 'TO THE \ \ } 1 PRIMARY RISER OVERFLOW EL ■ 185.)0 ' "SOTTO tOr Ttif E AND, \ \ \ 1 1 ) \ \ DISCHARGED OVERFLOW EL ■ 185.50 DISAR(ED INTO A"SUITABLY` - \ N \ \ \ \ \ \ \ \ \ I N \; ,' ENGINEERED ENERGY DISSIPATER. N ▪ \ \ \ • \ \ \ \ \ 1 , 1 ('.t / 0 0 l .` ` \ \ \ \ { ,`•� 1 1 I 1 \ - ,l�/ /wetland edge ! 0 ,\ `\ \ \ � ■ / l l r 1 // /; } ! r(li \\ \ \' '�2'\ `.-v } 1 I \\ \\ \ 1 1 , \ ' \ \ \ T ) 1 \ 1 I 1 , 1 \ 11 \1111 ) N I \ I 1 1 11 \\ k, ' ) I 1 \ 1 \I 1 I 11 11,11 N I I ` / ') i' I I Q I \ N \ XJ IIt /// 1 , \ \ N N N ( 1 " /!1 /// \ \ \ \ \ N \mill / / l \ \ \ N N A N \ // / /// (' `•v N //( /(vvv ) N N ,\\ ` \1 I I I 1 I \1 \I \ . \\ \ \\ \ N I II I 1 I \\ \ ` I II 1 I /\ N I 1 \ 1 / /'` 1 / v II 1 1 I 1 1 11 1 1 I 1 \'I 1 I II'I 1 1 l 1 1 I I I 1 i I ` 1 � �( 4 \ '\ 1 1 1 1 i s 5c3 RECEIVED \ \ 1 1 _ DEC 1 21 2004 D EVELOPMENT NT FOSTER RIDGE SHORT PLAT TESCP PLAN GRAPHIC SCALE 20 0 10 20 ( IN FEET ) 1 inch v 20 feet 40 Call before you Dig. 1- 800 - 424 -5555 UNDERCROUNO SERVICE NSA) gimmes of /1e/o6 I JOB RACER 98673.00 NO.P8673TES0DWG d : $ i -- E ) STING 7RIVEWAY BW-20 .0±. TW 2 1.0± BW 210.0± 193:2 - { i ..- (� PROVIDE 1.11N.„8 COVER • _ OR GRASS LANDSCAPING" - - __ _ 41 o.o \ — -( : )-. _ .'1 - W.188.0* -. ,,. - _. - . � '6. J ` ` 36 Lf MODUL "' _ h-,• `` DESIGNED `BY - - - N. \2 GEOTECHNICAL' ENGINEER \ L' , A N --' �- - T AT TIME,-Of - � . ION�! ... __ \ \\ \ \CONSIROCT 184. ± `:,y, . \ ` ,se \ �1NISTH 5 � - FLOOR \ BW 184.0± \ . .... I . _ ELEV (T :) {� N \\ \ \44P \ \ \ \ • _ l • • y� k _ / 6 ' . \ \ 1 ,` \ \ \\ \ ` PROVIDE MIN. 4 2' -HIGH RAILING AL EDGE'OF VAULT-WHERE VEIL\ 30' \HElG*IT FROM TWVFG \ To BW SEE DETAIL TOP, VAULT, 191:7 - (TYP.) .TW 192,0± 21 N9 10 \ 2 --- ,] ` q J c . ma y ` , ' st . '\ / ✓* / r \\ V C8/11H RIM \ ELEVATION nC i e e ' n \� 0 \J �" 1 \J /i �� K A 1 (-9 - : . : 7 , , OPEN � „!fir TB >` 1 \ r I _ _ _ \ __ —- -` _ -- A'21 ..- \ I , - ' i , ter^ rn' j . � 7 � 2 \Ari,543-ar____, -- -- --1 - y— \ \ i. , 0/ S.F. 12- .FLACCESS _ _. 5 8/4848 F C)' ) dq _ RO Cii()t4- T t 3 . ADg 5E , o w «m1 w f s -5 65 _ _ \ A R.. ( tm� s:aza wtva r 'SD°' � SEE DETAIL \ �\ '!A .130 ,; , :t 13 LF 12 WIDE AND 2 HIGH ERM HAMMERHEAD SECTION SEE DETAIL M752 2 ORM 22R2 E MFR. 22173 �•a a C� rum S . 1, 94 MATCH N - - -- - -AC TO ”" EXISTIN (PA VE A ,.. SAWcIff 4 t REMOVE EX. CY-C'r -.. <_crri.i.. ALT 4525 47 LF MODULAR BLOCK WALL AS DESIGNED BY CEOTECHNICAL ENGINEER AT THE 11ME OF CONSTRUC11oN itAVED 4524 37 IF MODULAR BL WALL AS DESIGNED BY GEOTECHNICAL ENGINEER AT TIME OF CONSTRUCTION 1W 199.8± BW 195.0* TW 202.0± BW 199.0* 12 -FT ACCESS ROAD SECTION SEE DETAIL MATCH EX. ASPHALT (TYP.) \ \ \ \ \ \ \ \ \ \ \ \ • \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ - -'\ \ \ \ • • \ \ \ \ \ \ \ \ J \ \ \ • \ \ •"•. \ \ \ \ \ \ l \ \ \ `\ \ \ \ • \ \ \ ,, \ \ \ \ \ \ \ � \ \ 42 L F r \ - A \ I OOU � \\ \ \ \O \ \ \ I \ \ \ \ \ \ \ \\ \ LAREL O \ CI. \ k \ \\ \ \ \\\\ L1., \ \ \ \ \ ALL AS DESIGNED BY \ \ \ \ \ \ \ J \ \\ \ \ \\ GEOTECHNICAL ENGINEER • \^� \ \ \ \ ,t \ \ \ \ \ `t.-r \ \ \ e 1'-- \ TW 197.6± \ \ X \ \ \ \ \ \ \ BW 190.5± \ \ \ \\ \ \ \\ \ \ GUARD RAIL (Tw SEE DET TW 194.0± \ \ ` BW 168.. \ \\ • TW19201 \\ \\ \ BW (8&0± \ \ \ \ \ 35 LF THICKENED, • EDGE SEE DETAIL \'t \ • \. \ ?. \ i t 5 E ' \ 10 ADJUST S5 RIM TO MATCH' NEW --, \ ?PX. LOCATION \ GRADLSEE E V DRIVE'N A 1: S : \ SANITARY S'R —� 9 8 x. -- 175— — _ — J = 7 7 5 - • - • \ 7 � / - - _ \ \\ \ \ \ \ \ \ \ \ \ 1 1 \ 1. • \ \ \ 1 t \ \ \ \ \ \ \\ \ I \ 1 \ 1 t 1 \ 1 \ ' L APPROXIMATE EARTHWORK QUANTITIES: CUT: 1,400 CY FILL: 1,300 CY v V v V I 1 • \ \\ \\ I I \\ ^` \ \ \ \ \ \ \ \ \ / ,----- -L 9a, \ \ \ \ \ 1 1 \ 1 \ / - -- \ ` \ \ \ \ l 1 1 1 \ / -- '\ \ \ \ \ \ \ \1I \ \\ \ 1 1\ \\ \11 ee- \ k", \ \ \ \ \ \ 1 \ \ \ \ I 1 , / \O / / / :\ \ \ l / r 1 1 \ y 11 \\ \\ \ \ \ 1. 1 \ \ 1 \1 \\ \ \ • \ \ \ 1 17 \ • � \\ \ \ 11 1 r 1 \ \ 1 I 1 1 1 I I t 1 I • \ I 1 1 i 1 11 .1 1 I / / 1 1 ). I I ! ! 1 / . / // A - ' ` GRAPHIC SCALE 20 0 10 20 ON 01 OE N ( IN ►BCf ) 1 loch a 20 feet ll 11 1 1 1 1 1 11 1 1 1 1 1 1 1 1 I 1 1 1 1,1 1j1 1 11 1 1 1 . I 1 1 11 11 1 1 11 -... 1\AI \ \ 1 \ I I Vl l 1 \ 1' �Ca \ 1 1 1 1 1\ 1 1 1 1 1 \ , S 1 { 1 \ \ 1 1 1 l \ ■ 1 1 _ ' \ UTILITY CONFLICT NOTE: CAUTION: . THE CONTRACTOR SHALL BE RESPONSIBLE FOR VERIFYING THE LOCATION, DIMENSION, AND DEPTH OF ALL EXISTING U11UTIES WHETHER SHOWN ON THESE PLANS OR NOT BY POTHOUNG THE UTILITIES AND SURVEYING THE HORIZONTAL AND VERTICAL LOCATION PRIOR TO CONSTRUCTION. THIS SHALL INCLUDE CAWNG UTIUTY LOCATE 0 1 -800- 424 -5555 AND THEN POTHOUNG ALL OF THE EXISTING UTIUTIES AT LOCATIONS OF NEW UTIUTY CROSSINGS TO PHYSICALLY VERIFY WHETHER OR NOT CONFUCTS EXIST. IF CONFLICTS SHOULD OCCUR, THE CONTRACTOR SHALL CONSULT THE ENGINEER TO RESOLVE ALL PROBLEMS PRIOR TO PROCEEDING WITH CONSTRUCTION. RECEIV DEC 21 2004 DEy OPM NT NOM 1. WALLS LESS THAN 4-FT. IN HEIGHT MAY BE CONSTRUCTED AS ROCKERIES IN ACCORDANCE WITH CITY OF TUKWILA ROCKERY DETAIL RS-05 (SHT. C10). 2. FOR SOILS INFORMATION REFER TO: SUBSURFACE EXPLORATION, GEOLOGIC HAZARD AND GEOTECHNICAL ENGINEERING REPORT DATED FEBRUARY 11 1998, REVISED NOVEMBER 13, 1998 PREPARED BY ASSOCIATED EARTH SCIENCES, INC. (425) 827 -7701 3. THE GEOTECHNICAL ENGINEER OR AN ON -SITE INSPECTOR REPRESENTING THE GEOTECHNICAL ENGINEER SHALL BE PRESENT DURING THE CONSTRUCTION OF FOUNDATIONS, RETAINING WALLS. WATER. SEWER AND SURFACE UTILITIES AND DRIVEWAYS. THE GEOTECHNICAL ENGINEER OR INSPECTOR SHALL VERIFY IN WRITING ON A DAILY BASIS THAT AU. CONSTRUCTION HAS BEEN PERFORMED IN ACCORDANCE WITH APPROVED PLANS & SPECIFICATIONS PERMIT REQUIREMENTS, AND THAT THE CONSTRUCTION WORK COMPLIES WITH AU. OF THE GEOTECHNICAL ENGINEER'S RECOMMENDA110NS. INSPECTION REPORTS SHALL BE SENT TO THE CITYS DEPARTMENT OF PUBLIC WORKS Cali before you Dig. 1- 800 - 424 -5555 UNDERGROUND SERVICE (USA) 1 5193228 05/25/05 1 I21PDt® of /tW/o5 1 DESIGNED HPP DRAWN HPP CHECKED PDC 3 2 NOTES ADDED PER PLANNING DIV. COMMENTS 12/20/04 )4/13/0 7/03 FPH HPP REVISED PER art COMMENTS REVISED PER OWNER REVIEW COMMENTS REMSION PP DATE BY PDC PDC PDC APP 'D Engineering Planning Surveying Penhallegon Associates Consulting Engineers, Inc 750 Sixth Street South Kirkland. WA 98033 ew .paceengr,.com PH: (425) 827 -2014 1- 800 -945 -8408 FAX: (425) 827 -5043 Kirkland • Seattle . Federal Woe Portland R.S. PEDERSEN P.O. BOX 1518, MARYSVILLE, WA 98270 REFERENCE INFORMATION FIELD BOOK SURV. CPU FILE: DATUM: DATE JULY, 2003 SCALE 1' -20' FOSTER RIDGE SHORT PLAT GRADING PLAN JOB NUMBER 98673.01 DWG NO. P8673GR.DWC SHEET C4 or 11 72 • 1. 'rte f BE ACCOMPLISHED EITHER BY ZED EQUIPMENT THAT MU. BANCE TO THE SLOPE AREA. E PIPE SHOULD BE THREADED TREES INSTEAD OF REMOVING E ANCHORS AT MINIMUM 20 FOOT RBED AREAS MUST BE IMMEDI a Y ON PROTECTION. - - _ -1- - - - -- CB /18, TYPE I - :<:o - -SOLIErUD._ _ RIM 205.10 (PA Vnyo0.266 a Q rt.r - - - - - INSTALLTRAS RA cCr - X - r SP a■... a _ATrCULVERT INLET SET CULVERT IN(T I.E. . , 200.54` ` COLLECT DISCHARGE FROM EX. \ CULVERT. FIELD LOCATE EX. ',W: \ \ CULVERT. S ■0.01 MIN. CONNECT \ \\ \\ ,� WALL DRAIN TO 6' PVC CB TYPE'! 1 \ ■ LE. 195.20 \20 L1 4525 «' F e1 \s- 0:41ot RIM 204.50 I.E. 200.70 (12'))\ \ I.E. 201.20 (61 \ \ 29 LF 8' PVC S -0.055 . RIM .193.20 \. \ LE. 8706 '� r LE1110 e C) _ _ - CON �`. -. _-) r. \ - �°•� -- -- t.. 916,_ ON ECTtVAULT •• TING,DRA1A � - �� 1,En18153.` 0.010 1 \ \ \ 40 LF \ I __S<0 \\ 'v - I.E" T 121.29 - 128 L F 8' ± RT ('e p '` - PROVIDE PLUG AT END DRAIN, O OF Cl1RTAiN DRAIN- _ __ 134 LF-1 LCPE +' DET AE \ CU RTAIN ..0.010 - - DRAIN /ST0R1t DRA -- OMMON TRENCH ` _ i ® _\`+ 1 RIM 2 . • I E 219.38 t E 211.138 ,w) 1 i �7�7 \_.1 / / \ CONfiR - A1;12 SHA F AKE BE T \EFFORT 1'0 / / RETAIN AND NOT REMOVE TR S DURING / l \ J INSTALLATION QF LEVEL SP ER TREES / \ REM0VgD SH CLL\BE REPLA ° ON \A...„1 TO-1 / 1 ' AS :.rte -dg .„---7- / - -._./ SPR ': i SEES t- _ ., - "'DETAIL CB 5 ell t RIM 190.10 I.E. 186.45 (S,SE) LE. 187.95 (SW) CB RIM 197.88 I.E. 192.96 4524 7LF 12- LOPE 5- 0.2428 CB TYPE 9 54'0 OATABLE MATERIAL SEPARATOR SEE DETAIL SOLID U0 RIM 199.00 LE. 185.90 BW 197.0± C8 8 TYP I RIM 202.00 I.E. 197.25 28 LF 12 LCP S ■0.103 SOLID UD eel RIM 205.10 1 R aa�a a?!S I.E. 200.14 4 Eva tr±a 144344 44 PIM rem v.1es m_rr r1,,S41 s:.rsl ¢1759 can tsan E,±i 8.3311 l 3 R�xa 12' LOP RIM 211.00 LE. 207.91 54 LF 8' OCURTAIN DRAIN \\ S -0.141 SEE DETAIL y 15 LF 6' \ CURTAIN DRAIN '\ 4526 _ _. ¢DETAIL 217.4± 21 LF 6 RTAIN DRAIN S -0.100 SEE DETAIL - _.._ 219,5k EXIST. A BERM/UP CB TYPE R' RIM 2..00 I.E. 220.72 - - FLOW .) PAVED) �i.IS1TNG DRIVEWAY \ \ \ \ \\`\ \ \ N `�\ \\ `\ \y I, \ \ `\ s\ \\ \L'\ \\ \ \ \ \\ \\ \\ \ . \ -\ \ \ \ \ \\ `\ \ 4 6TH AV $ \\ ` \ \ \ \\ \\ \ \\ \ \ \` \ \\ ` \ \\ \\ \\ \\ \ \\ `\ \ \O \ \\ \ 128 L \112' \\ U \\\\\\ \\ `\ \\ s '.. 16'1F 6R.CPE \ \ \ CONTINUOUSLY, \ \ \ \ \ 5.4 035 \ \ \ \ \ \ FUSED HDPE \ \ \ \ \ 'CONNECT \ \ ` 5; \ 0.35± \ \ WALL DRAINS \ 8• \ ` \ \ \ \ \ I.E. 188.51\ \\ 104 LF '\ \ \ \ \ k' . \ \\ \ � •, 1YLCPE \ \ \ \ ✓ \ \ - 5 -0.068 \ `\ \ • ` LIN E` ' ` ` \ \ I 0. 18 I F RIM 182.00 \ I \ 5L487\ I.E \ 179.40 '.\ 12'LCPE \ S -4.483 483 P)C \ \ A . - -AP LOCATIO / DRIVEV./AYS // COME T• TO • 1 EXISTING, CB \ 'E. ' I. 133.40'• \ � \'u \ \ \ LE \ \ \ 4 ►\ WATER QUAL`! /XETENT10N' VAULT TOP VAULT U 191:7±... ` `\ BOTTOM VAULT (INSIDE) IB1-.2± \ BOTTOM 'VAULT 1E10.5* 10 LF . VAULT INSIDE DIM. 58'x16'x9.5' 1\;/5\0.010y\(1 H Q4TWk.,,(A = 165.21 - 2;680 ./ CF 39,LF 10:5 FREEBOARD 6'PVC SEE DETAIL S -4053 DET, STORAGE . ' -1 4,480 EXISTING 12' O STORM DRAIN 0fl INSTALLATION OF THE 5D LINE REQUIRES EASEMENT FROM PROPERTY OWNER. BURIAL OF THE PIPE MUS HAND OR WITH MINIMAL- CAUSE THE LEAST DIS THE EXTENT POSSIBLE / / BETWEEN AND AROUN / / /TREES. SECURE WI / / / / INTERVALS. AU- A DI / STABILIZED - FOR a / >e - \ \ \ \ \ '6a_ - \ • \ \ \ 1 , \ I 1 � \ yC\ \ \ 1 \\1\1 \ \ \ \ \k \ \ • 1\ \ \ \ \1 1 \ \ \\ \\ \\ \ \ \ \ \ \ ,\ \ +, \ \ Imo \ \ \ \ \ \ \ " , 1 , \ ` \ 1 \ v �i \ / 1 \ I 1 1 / \\\ 1 1 \ ! \ I I 011 1 1 1 1 1 1 ! \ 1 I I 1 / 1 \ /' \\ \ 1/ \\\\ \ \ \ \ .\\ \\ \\ \`1 \ I \\ \\ rl \\ v v \ V \\ I 1 A I I 1 I iii + I I 1 1 \ \� !I \ -`' v I \ \ II 1111 II __// ` v `' l I 1 1 1 I I I 1 k 1 1 1 l :\ \\ I / I 1 I'1. 1 Li / / GRAPHIC SCALE 20 0 10 20 40 In MI In I MO ( IN FEET ) 1 inch m 20 feet -', --- -. \ \ \ \ LANDOOVLR NOTEB: \ ' (BASED ON 0.80 -ACRE SITE AREA TO BE DISTURBED. THE REMAINING 2.07 ACRES OF THE TOTAL 2.87 -ACRE SITE \ ARE PERVIOUS AND REMAIN UNDISTURBED) - - - -n. \ \ \ \ \ \\ \ t \ \\ \\ EXISTING PERVIOUS SURFACE AREA: \ \ \ \ \ \ \ \ PROPOSED PERVIOUS SURFACE AREA `\ \ \ \ \ '\ \\ \ PROPOSED IMPERVIOUS SURFACE AREA: l 1 a - �\ \ \ \ \ \\ \ \ I 1 1 1 t 1 \ \ \ 1 1 11 1 \ \ \ \ \ \ \ 1 \ \ 1 V A A \ 1 1 1 � \ \\ -\ 11 \ � 1 \ \ \\ rTh J, \\� 1 / / / / ` � 1 / /// \ \\ \Y \\ \ I 1 / i v \ vV A \ V 1 EXISTING IMPERVIOUS SURFACE AREA: i e;. , -yy - ti L.. DEL 2 1 ?0041 COmmt ,.t I Y DEVELOPMENT .1 1 1 1 111 1 1 1 1 i I 1 I ✓( \1 1 Q1 I \ \ \ \ i 1 11 1 CON5--F-LICT D`� 1 \ \ ' 1 I 1 I , c� �� \ 1 \ UTI LI NOTE, \ 1 I._ - CAUTION: z2° 1 - \ 1 _ ` THE CONTRACTOR SHALL BE RESPONSIBLE FOR VERIFYING THE LOCATION, \ DIMENSION, AND DEPTH OF AU. EXISTING UTIUTIES WHETHER SHOWN ON THESE PLANS OR NOT BY POTHOLING THE UTILITIES AND SURVEYING THE HORIZONTAL AND VERTICAL LOCATION PRIOR TO CONSTRUCTION. THIS SHALL INCLUDE CAWNG UTIUTY LOCATE 0 1- 800 - 424 -5555 AND THEN POTHOUNG ALL OF THE EXISTING UTILITIES AT LOCATIONS OF NEW UTIUTY CROSSINGS TO PHYSICALLY VERIFY WHETHER OR NOT CONFUCTS EXIST. IF CONSTR CONFLICTS UCTION. SHOULD OCCUR, THE CONTRACTOR SHALL CONSULT THE ENGINEER TO RESOLVE ALL PROBLEMS PRIOR TO PROCEEDING WITH 34,412 SF 438 SF 21,344 5F 13,504 SF Cali before you Dig. 1- 800 - 424 -5555 UNDERGROUND SERVICE (USA) I Ewmra a /1a /oe I DESIGNED HPP DRAWN HPP CHECKED PDC 3 SD REVISIONS 2/20/0( REVISION DATE HPP REVISED PER CITY COMMENTS REVISED PER OWNER COMMENTS 4/13/04 7/03 HPP DRD BY PDC PDC APP' _ Engineering Planning Surveying Penhallegon Associates Consulting Engineers, Inc. 750 Sloth Street South PH: (425) 827 -2014 Kirkland . Kirkland, WA 98033 .w .paceeng,s cam 1 -800- 945 -8408 FAX: (425) 827 -5043 Seattle . F.deral Way Portland R.S. PEDERSEN P.O. BOX 1518, MARYSVILLE, WA 98270 REFERENCE INFORMARON FIELD BOOK: SURV. CPU FILE: DATUM: DATE JULY 2003 SCALE 1 " -20' FOSTER RIDGE SHORT PLAT STORM DRAINAGE PLAN JOB NUMBER 98673.01 DWG NO. P8673sd.drq SHEET 05 of 11 8? MR — ....._ pNNO DOS — .GROUND --, i E zzz I .wil _ 1 LF 50.01D 12'0 L• F /I OW SPREADER PRe • N. • 1 8 LF _1 . 5 - 0.010 8'0 PERFORATED PVC 50.008 _w 23 S -0.039 LF 12 0 LCPE • r�� 1. a zz Q 'z g zzz $ ry \ • SO DGST. GROUND i ii I •t.;"" 0 4 43 . / .- 0 N N 0 N n N o N . a N N N N O OD N m M N M O N - N O O N N cm „Am. c -NN� zzz W l in8zzz m pWQ pNNO NM) jW= = rn 0 PROPOSED GROUND • 1 + gib r - +�zg 1Z 2 • N. 50.008 _w � Nm • r�� 1. a zz Q 'z g zzz $ ry \ • SO DGST. GROUND i ii I •t.;"" 0 4 43 . / .- - EI 40 LF in LCPE 54 LF S.0 022 12'0 LCPE S.0.010 7 LF 12'• S -0.243 LOPE EL 185.: VAULT U 0 M •d- N N M N 0 a M 0 0 0 a c46l PROPOSED GROUND 23 LF 1200.I. S- 0.0050 230 220 210 200 DATUM ELEV 190.00 a N N 0 +00 s *N 0N PROPOSED GROUND 25 LF 12 a LOPE 50.2428 N N 0 +00 0 +50 PROFILE LINE C SCALE: VERT 1'-5' HORIZ. 1'-20' 8 gg gg z 1 +00 PROFILE LINE A SCALE: VERT 1'-5' HORIZ. 1'-20' EXIST. GROUND 1 +50 2 +00 2 +50 GROUND 21 200 190 DATUM ELEV 180.00 en N - 0 0 +00 0 +50 1 +00 1 +50 PROFILE LINE B SCALE: VERT 1' NORM 1'-20' 2 +00 2 +50 RECE vE.D DEL 21 10041 COiiluri ,.+ I Y DEVELOPMENT 0 STORAGE 0 Call before you 1 -800- 424 -5555 UNDERGROUND SERVICE (USA) I E Pmes oi /ie /DS I DESIGNED HPP DRAWN HPP CHECKED PDC 2 S94 REVISION 4/13/04 7/03 HPP DRD REVISED FOR OM COMMENTS REVISED PER OWNER COMMENTS PDC PDC DATE BY APP) Engineering Planning Surveying Penhallegon Associates Consulting Engineers, Inc. • 750 Sixth Street South Kirkland. WA 98033 www.paceengre.com PH: (425) 827 -2014 1- 800 - 945 -8408 FAX, (425) 827 -5043 Kirkland • Seattle . Feder., Way Portland R.S. PEDERSEN P.O. BOX 1518, MARYSVILLE, WA 98270 REFERENCE INFORMATION HELD BOOK: SURV. CPU FILE DATUM: DATE JULY 2003 SCALE 1"-20' FOSTER RIDGE SHORT PLAT STORM DRAINAGE PROFILE -LINE A, B & C JOB NUMBER 98673.01 DWG NO, P8673sd.dwq SHEET C6 OE 11 P \P98\9867.3\CADV867350-04 DWG (PPH) MAY 18 2004 11.27 09 22 LF12 LOPE S•0.005 28 LF 12 0 LCPE S - 0.103 200 190 180 DATUM ELEV 170.00 co O N 0 +00 0 +50 1 +00 PROFILE LINE D SCALE: VERT 1'.5' HORIZ 1' ■20' 1 +50 2 +00 170 160 150 140 130 DATUM ELEV 125.00 0 +00 O 0 +50 PROFILE LINE E SCALE: VERT 1'.5' HORIZ 1 +00 R CEIVED U - C 212004' :1rAMUNITY •. E`J ELOPMENT Call before you Dig. 1- 800 - 424 -5555 UNDERGROUND SERNCE (USA) I EXPtRIS ORRe /O I EXPIRE! 01/19/08 I DESIGNED HPP DRAWN HPP CHECKED PDC 2 SYM REVISION 34/13/04 DATE REVISED FOR 0M COMMENTS HPP BY PDC APP'D Engineering Plonning Surveying Penhallegon Associates Consulting Engineers, Inc. 750 Sixth Street South Kirkland, WA 98033 www.paceengrs.com PH: (425) 827 -2014 1 -800- 945 -8408 FAX: (425) 827 -5043 Kirkland • Seattle . Federal Way Portland R.S. PEDERSEN P.O. BOX 1518, MARYSVILLE, WA 98270 REFERENCE INFORMATION flab BOOK: SURV. CPU FILE DATUM: DATE JULY 2003 SCALE 1"-20' FOSTER RIDGE SHORT PLAT STORM DRAINAGE PROFILE D&E JOB NUMBER 98673.01 DWG NO. P8673sd.deq SHEET C7 ' of 11 PROPOSED GROUND g c ' A � kt PROPO PIPE BLOCK GROUND \ „ • a \ - aC54 <„ f EXIST. GROUND 0, \ 8 4* . N Ab e �= EXIST. GROUND -mss _, 1 04. � - CF N. N. \ ly +OLD\ \..- '� \ e � \ \ WI \ 'n n Oi O V) g 00 O W 00 Oi a0 0 m In Y o0 N fV 0] 1 `g h. ^O M O N 03 N p N 22 LF12 LOPE S•0.005 28 LF 12 0 LCPE S - 0.103 200 190 180 DATUM ELEV 170.00 co O N 0 +00 0 +50 1 +00 PROFILE LINE D SCALE: VERT 1'.5' HORIZ 1' ■20' 1 +50 2 +00 170 160 150 140 130 DATUM ELEV 125.00 0 +00 O 0 +50 PROFILE LINE E SCALE: VERT 1'.5' HORIZ 1 +00 R CEIVED U - C 212004' :1rAMUNITY •. E`J ELOPMENT Call before you Dig. 1- 800 - 424 -5555 UNDERGROUND SERNCE (USA) I EXPtRIS ORRe /O I EXPIRE! 01/19/08 I DESIGNED HPP DRAWN HPP CHECKED PDC 2 SYM REVISION 34/13/04 DATE REVISED FOR 0M COMMENTS HPP BY PDC APP'D Engineering Plonning Surveying Penhallegon Associates Consulting Engineers, Inc. 750 Sixth Street South Kirkland, WA 98033 www.paceengrs.com PH: (425) 827 -2014 1 -800- 945 -8408 FAX: (425) 827 -5043 Kirkland • Seattle . Federal Way Portland R.S. PEDERSEN P.O. BOX 1518, MARYSVILLE, WA 98270 REFERENCE INFORMATION flab BOOK: SURV. CPU FILE DATUM: DATE JULY 2003 SCALE 1"-20' FOSTER RIDGE SHORT PLAT STORM DRAINAGE PROFILE D&E JOB NUMBER 98673.01 DWG NO. P8673sd.deq SHEET C7 ' of 11 PROPOSED GROUND \ „ • a \ - W ^ W aD OnE.. q • - .--Z.3.45 $ 0, \ 8 4* . N Ab e �= EXIST. GROUND -mss _, 1 04. � - CF N. N. ly +OLD\ \..- 'n n Oi O V) g 00 O W 00 Oi a0 0 m In Y o0 N fV 0] 1 `g 22 LF12 LOPE S•0.005 28 LF 12 0 LCPE S - 0.103 200 190 180 DATUM ELEV 170.00 co O N 0 +00 0 +50 1 +00 PROFILE LINE D SCALE: VERT 1'.5' HORIZ 1' ■20' 1 +50 2 +00 170 160 150 140 130 DATUM ELEV 125.00 0 +00 O 0 +50 PROFILE LINE E SCALE: VERT 1'.5' HORIZ 1 +00 R CEIVED U - C 212004' :1rAMUNITY •. E`J ELOPMENT Call before you Dig. 1- 800 - 424 -5555 UNDERGROUND SERNCE (USA) I EXPtRIS ORRe /O I EXPIRE! 01/19/08 I DESIGNED HPP DRAWN HPP CHECKED PDC 2 SYM REVISION 34/13/04 DATE REVISED FOR 0M COMMENTS HPP BY PDC APP'D Engineering Plonning Surveying Penhallegon Associates Consulting Engineers, Inc. 750 Sixth Street South Kirkland, WA 98033 www.paceengrs.com PH: (425) 827 -2014 1 -800- 945 -8408 FAX: (425) 827 -5043 Kirkland • Seattle . Federal Way Portland R.S. PEDERSEN P.O. BOX 1518, MARYSVILLE, WA 98270 REFERENCE INFORMATION flab BOOK: SURV. CPU FILE DATUM: DATE JULY 2003 SCALE 1"-20' FOSTER RIDGE SHORT PLAT STORM DRAINAGE PROFILE D&E JOB NUMBER 98673.01 DWG NO. P8673sd.deq SHEET C7 ' of 11 B MWL.AM& 1 . ALL CONSTRUCTION SHALL BE IN ACCORDANCE WITH THE CITY OF TUKWILA CODE ROAD STANDARDS AND THE CITY OF TUKWILA CONDITIONS OF PRELIMINARY SUBDIVISION APPROVAL IT SHALL BE THE SOLE UBIUTY OF THE APPUCANT AND THE PROFESSIONAL CIVIL ENGINEER TO CORRECT ANY ERROR, OMISSION. OR VARIATION FROM THE ABOVE REQUIREMENTS FOUND IN THESE PLANS. ALL CORRECTIONS SHALL BE AT NO ADDITIONAL COST OR UABIUTY TO THE CITY OF TUKWILA. 2. THE DESIGN ELEMENTS WITHIN THESE PLANS HAVE BEEN REVIEWED ACCORDING TO THE CITY OF TUKWILA ENGINEERING RENEW CHECKLIST. SOME ELEMENTS MAY HAVE BEEN OVERLOOKED OR MISSED BY THE CITY OF TUKWILA PLAN REVIEWER. ANY VARIANCE FROM ADOPTED STANDARDS IS NOT ALLOWED UNLESS SPECIFICALLY APPROVED BY THE CITY OF 1UKWILA PRIOR 10 CONSTRUCTION. 3. APPROVAL OF THIS ACCESS, GRADING. AND DRAINAGE PLAN DOES NOT CONSTITUTE AN APPROVAL OF ANY OTHER CONSTRUCTION (E.G. DOMESTIC WATER CONVEYANCE, SEWER CONVEYANCE, GAS, ELECTRICAL, ETC.). 4. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY A PRECONSTRUCTION MEETING MUST BE HELD BETWEEN THE CITY OF TUKWILA DEVELOPMENT INSPECTION UNIT. THE APPLICANT, AND THE APPUCANT'S CONSTRUCTION REPRESENTATIVE 5. A COPY OF THESE APPROVED PLANS MUST BE ON THE JOB SITE WHENEVER CONSTRUCTION IS IN PROGRESS. 8. CONSTRUCTION NOISE SHALL BE UMITED AS PER THE CITY OF TUKWILA CODE NORMALLY THIS IS 7 A.M. TO 8 P.M. WEEKDAYS AND 7 A.M. TO 6 P.M. ON SATURDAY - SUBJECT TO INSPECTOR AVAILABIUTY, NO WORKING ALLOWED ON SUNDAYS OR HOLJDAYS OBSERVED BY THE CITY OF TUKWILA 7. IT SHALL BE THE APPUCANTS /CONTRACTOR'S RESPONSIBILITY TO OBTAIN ALL CONSTRUCTION EASEMENTS NECESSARY BEFORE INITIATING OFF -SITE WORK THIN THE ROAD RIGHTS -OF -WAY. 8. FRANCHISED UTIUT1ES OR OTHER INSTALLATIONS THAT ARE NOT SHOWN ON THESE APPROVED PLANS SHALL NOT BE CONSTRUCTED UNLESS AN APPROVED SET OF PLANS THAT MEET ALL REQUIRDAENTS OF CITY OF TUKWLA ARE SUBMITTED TO THE DEVELOPMENT INSPECTION UNIT THREE DAYS PRIOR TO CONSTRUCTION. 9 . ALL UTIUTY TRENCHES SHALL BE BACKFILLED COMPACTED TO 95% DENSITY. 10. ALL ROADWAY SUBGRADE SHALL BE BACKFILLED COMPACTED TO 95X DENSITY. WSDOT 2 -06.3. 11. OPEN CUTTING OF EXISTING ROADWAYS IS NOT ALLOWED UNLESS SPECIFICALLY APPROVED BY THE CITY OF TUKWILA AND NOTED ON THESE APPROVED PLANS. ANY OPEN CUT SHALL BE RESTORED IN ACCORDANCE VATH CITY OF TUKWILA STANDARDS. 12. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROVIDING ADEQUATE SAFE GUARDS, SAFETY DEVICES, PROTECTIVE EQUIPMENT, FLAGGERS, AND ANY OTHER NEEDED ACTIONS TO PROTECT THE UFE, HEALTH, AND SAFETY OF THE PUBLIC, AND TO PROTECT PROPERTY IN CONNECTION WITH THE PERFORMANCE OF WORK COVERED BY THE CONTRACTOR. ANY WORK WITHIN THE TRAVELED RIGHT -OF -WAY THAT MAY INTERRUPT NORMAL TRAFFIC FLOW SHALL REQUIRED AT LEAST ONE FLAGGER FOR EACH LANE OF TRAFFIC AFFECTED. ALL SECTIONS OF THE WSDOT STANDARD SPECIFICATIONS 1 -.23 - TRAFFIC CONTROL, SHALL APPLY. CONSTRUCTION SEQUENCE;, 1. BEFORE ANY CONSTRUCTION OR DEVELOPEMENT ACTIVITY, A PRE - CONSTRUCTION MEETING SHALL BE HELD BETWEEN THE CITY OF TUKWILA, THE APPUCANT, AND THE APPLICANTS CONSTRUCTION REPRESENTATIVE 2. VERIFY VERTICAL AND HORIZONTAL LOCATIONS OF ALL EXISTING UNDERGROUND UTILITIES. CONTACT ALL UTIUTY COMPANIES THAT MAY BE AFFECTED BY THE PROPOSED CONSTRUCTION. THE ONE CALL NUMBER IS 1- 800 - 424 -5555. 3. MAINTAIN ALL EXISTING UTIUTY SERVICES DURING CONSTRUCTION. 4. VERIFY GRADES PRIOR TO CONSTRUTION. FLAG CLEARING UMITS. 5. INSTALL ROCKED CONSTRUCTION ENTRANCE. FILTER FABRIC FENCE, TEMPORARY CHAIN UNK FENCE, TREE PROTECTION/ORANGE CONSTRUCTION FENCE, SEDIMENT TRAP, INTERCEPTOR SWALES AS INDICATED ON PLAN. 6. INSTALL STORM DRAINAGE SYSTEM FROM EX. CB IN MACADAM ROAD TO CB #17 AND STORM DRAINAGE SYSTEM FROM CB# 10 TO LEVEL SPREADER. INSTALL CB INSERTS ON NEW CB'S. PER DETAIL 7 SHEET C8. 7. CLEAR & GRUB AREAS OF THE SITE TO BE ROUGH GRADED, OR FILLED. 8. REMOVE UNSUITABLE BEARING MATERIAL AS REQUIRED. 9. INSTALL REMAINING NEW UTILITIES. INSTALL CB INSERTS ON NEW CB'S. 10. GRADE SITE. CONSTRUCT ASPHALT PAVING AND ACCESS DRIVES. 11. STABIUZE DISTURBED AREAS TO PREVENT EROSION AND SEDIMENT TRANSPORT. 12. REMOVE EXCESS EXCAVATED MATERIALS. TRASH DEBRIS, AND WASTE MATERIALS. DISPOSE OF IN AN AUTHORIZED LOCATION AT NO COST TO THE OWNER. 13. CLEAN STORM DRAINAGE SYSTEM. 14. REMOVE TESC MEASURES ONCE SITE IS COMPLETELY STABLE. GRADINe NOTES; 1. SITE PREPARATION SHALL BE IN ACCORDANCE WITH THE GEOTECHNICAL ENGINEER'S RECOMMENDATIONS 2. PRIOR TO PAVING, ALL ROADWAYS SHOULD BE PROOFROLLED IN ACCORDANCE WITH GEOTECHNICAL ENGINEER'S REPORT. THE GEOTECHNICAL ENGINEER SHALL BE PRESENT DURING PROOFROWNG. 3. THE CONTRACTOR MUST USE CARE DURING SITE PREPARATION AND EXCAVATION OPERATIONS SO THAT THE UNDERLYING SOILS ARE NOT SOFTENED. SOFTENED SOILS SHOULD BE REMOVED AND THE AREA BROUGHT TO GRADE WITH STRUCTURAL FILL 4. STRUCTURAL FILL SHALL BE PREPARED, PLACED, AND COMPACTED PER GEOTECHNICAL ENGINEER'S REPORT. 5. FILL PLACED ON SLOPES STEEPER THAN 5H :1V SHALL BE TIED TO FIRM. STABLE SUBSOIL BY APPROPRIATE KEYING AND BENCHING AS RENEWED AND APPROVED BY THE GEOTECHNICAL ENGINEER. 8. PROPOSED GRADES SHALL BE NO STEEPER THAN 3H:1V (H:V) UNLESS OTHERWISE NOTED ON PLANS. 12. MIN DEPTH 4' -8' QUARRY SPALLS PROVIDE FULL WADTH OF INGRESS/EGRESS AREA CROCKED CONSTRUCTION ENTRANCE N.T.S. DESIGN AND INSTALLATION SPECIFICATIONS 1. THE GEOTEXTILE USED MUST MEEE THE STANDARDS LISTED BELOW. A COPY OF' THE MANUFACTURER S FABRIC SPECIFICATIONS MUST BE AVAILABLE ON SITE. AOS (A511.1 0 -4751) = 30 -100 SIEVE SIZE (0.60 -0.15 mm) FOR SLIT FILM 50-100 SIEVE SIZE (0.30 -0.15 mm) FOR OTHER FABRICS WATER PERMITTIVITY (ASTM D -4491) - 0.02 SE& MIN. GRAB TENSILE STRENGTH (ASTM D -4632) - 180 LEIS MIN. FOR EXTRA STRENGTH FABRIC 100 LBS MIN. FOR STANDARD STRENGTH FABRIC GRAB TENSILE ELONGATION (ASTM 13-4632) - 30X MAX. ULTRAVIOLET RESISTANCE (ASTM D -4355) - 70X MIN. 2. STANDARD STRENGTH FABRIC REQUIRES WIRE BACKING TO INCREASE THE STRENGTH OF THE FENCE WIRE BACKING OR CLOSER POST SPACING MAY BE REQUIRED FOR EXTRA STRENGTH FABRIC IF FIELD PERFORMANCE WARRANTS A STRONGER FENCE. 3. WHERE THE FENCE IS INSTALLED. THE SLOPE SHALL BE NO STEEPER THAN 2H :1V. a*r-"n 1 I I I II u POST SPACING MAY BE INCREASED TO 8' IF WIRE BACKING IS USED JOINTS IN FILTER FABRIC SHALL BE SPUCED AT POSTS USE STAPLES. WARE RINGS, OR EQUIVALENT TO ATTACH FABRIC TO POSTS. 2x2' BY 14 Ga. WIRE OR QUIVALENT. IF STANDARD STRENGTH FABRIC USED. FILTER - FABRIC 1\.... BACKFILL TRENCH WITH NATIVE SOIL OR 3/4'-1.5 - WASHED GRAVEL 2x4' WOOD POSTS. NOTE: FILTER FABRIC FENCES STEEL FENCE POSTS. SHALL BE INSTALLED ALONG REBAR, OR CONTOUR WHENEVER POSSIBLE EQUIVALENT MAINTENANCE STANDARDS 1. ANY DAMAGE SHALL BE REPAIRED IMMEDIATELY 2. IF CONCENTRATED FLOWS ARE EVIDENT UPHILL OF THE FENCE, THEY MUST BE INTERCEPTED AND CONVEYED TO A SEDIMENT TRAP OR POND. 3. IT IS IMPORTANT TO CHECK THE UPHILL SIDE OF THE FENCE FOR SIGNS OF THE FENCE CLOGGING AND ACTING AS A BARRIEIR TO FLOW AND THEN CAUSING CHANNEUZATION OF FLOWS PARALLEL TO THE FENCE IF MIS OCCURS, REPLACE THE FENCE AND /OR REMOVE THE TRAPPED SEDIMENT. 4. SEDIMENT MUST BE REMOVED WHEN IT IS 6- HIGH. 5. IF THE FILTER FABRIC HAS DETERIORATED DUE TO THE ULTRAVIOLET BREAKDOWN, IT SHALL BE REPLACED. 2°TEMPORARY SILT FENCE N.T.S. 4' MIN. 1 1' MIN. y ()TEMPORARY SWALE N.T.S. 1 MIN. 4'x4' TRENCH CROCK CHECK DAM N.T.S. TOP OF BERM 3/4' x 1 -1/2 WASH GRAVEL. RISER CONE 0.5' MIN. SECONDARY OVERFLOW DEPTH FILTER FABRIC COVER WITH WIRE FASTENER (COVER TOP AND HOLES) • RIPRAP 12- x 6 PVC TEE T BOTT. r�rwYr�- 1' •EPTH MIN 3 /4 -1 18- E R •T. EL 1/2' WASHED GRAVEL 181.50' 1.5' DEPTH 2' -4' 400 NOTES ROCK 1. TRAP MAY BE CONSTRUCTED BY EXCAVATION OR BY BUILDING A BERM. 2. BERM SHALL BE CONSTRUCTED OF NON - PERVIOUS MATERIAL 3. THE BOTTOM OF THE TRAP AND BERM MATERIAL MUST BE COMPACTED TO A DENSE. NONY1ELDING CONDITION. ()TEMPORARY SEDIMENT TRAP N.T.S. FIN O NATIVE SOIL OR COMPACTED BACKFILL GEOTEXIILE CA TOP OF RISER 185.00 3' DIA. HOLES, 6 0.0. IN THE UPPER 24' 30 HOLES MIN. GRADE P.V.C. SI FOR 8X18X12 QDEV -25 TEE YR. STORM (12' MIN) FILL WITH CONC. 011 CRUSH SURFACE BASE COURSE TO FLOW UNE OF OUTLET PIPE RISER MME TOP BERM EL. 186.00 3' MIN 0.5' MIN. D . TH EP OVERFLOW EL 185.50 Y, Yx ; SPILLWAY r r r r`G ter•. y MIN. 1.5' DEPTH O �� °.,���OrQ °1. %r 2 ROCK MIN. 1' DEPTH 3 4' -1. WASHE D GRAVEL ()TEMPORARY SEDIMENT TRAP OUTLET N.T.S. TOP OF BERM 186.00 TENSAR GS -1 SAFETY FENCE OR EQUAL DIRECTIONS FOR USE (1)REMOVE DRAIN GRATE (2)INSERT FILTER (3) REPLACE GRATE TO HOLD IN POSITION 'FCIFICA110NS (1) FILTERS TO BE A MIN 3' DEEP (2) CONSTRUCTED OF WOVEN POLYPROPYLENE p 4) ALL SEAMS DOUBLE STITCHED PERMEABILITY - 40 GAL PER MIN \ SQ FT REUSEABLE OR THROW -AWAY MMNTENANi (1) REMOVE WHEN FILLED TO 1/2 WAY MARK USE FRONT END LOADER OR OTHER EQUIPMENT FOR REMOVAL (2) CLEAN AND REUSE OR REPLACE OCB SEDIMENT FILTER N.T.S. 10' 1 1 1 GALVANIZED WIRE STEEL FENCE POSTS NOTE FENCE SHALL NOT BE ATTACHED TO TREES OR ANY NATIVE VEGETATION. ()TEMPORARY CONSTRUCTION FENCE N.T.S. EROSION AND SEDIMENT CONTROL NOTES. 1. APPROVAL OF THIS EROSION AND SEDIMENT CONTROL (ESC) PLAN DOES NOT CONSTITUTE AN APPROVAL OF PERMANENT ROAD OR DRAINAGE DESIGN C HANNELS, RETENTION TES,AUTIUTIES, �TRICTORS ) 2. THE IMPLEMENTATION OF THESE ESC PLANS AND THE CONSTRUCTION, MAINTENANCE. REPLACEMENT, AND UPGRADING OF THESE ESC FAOIUTIES IS THE RESPONSIBIUTY OF THE APPUCANT/ESC SUPERVISOR UNTIL ALL CONSTRUCTION IS APPROVED. 3. THE BOUNDARIES OF THE CLEARING LIMITS SHOWN ON THIS PLAN SHALL BE CLEARLY FLAGGED BY A CONTINUOUS LENGTH OF SURVEY TAPE (0R FENCING. IF REQUIRED) PRIOR TO CONSTRUCTION. DURING THE CONSTRUCTION PERIOD, 140 DISTURBANCE BEYOND THE CLEARING LIMITS SHALL BE PERMITTED. THE CLEARING OMITS SHALL BE MAINTAINED BY THE APPUCANT/ESC SUPERVISOR FOR THE DURATION OF CONSTRUCTION. 4. THE ESC FACIUTIES SHOWN ON THIS PLAN MUST BE CONSTRUCTED PRIOR TO 013 IN CONJUNCTION WITH ALL CLEARING AND GRADING SO AS TO ENSURE THAT THE TRANSPORT OF' SEDIMENT TO SURFACE WATERS, DRAINAGE SYSTEMS, AND ADJACENT PROPERTIES IS MINIMIZED. 5. THE ESC FACILITIES SHOWN ON THIS PLAN ARE THE MINIMUM REQUIREMENTS FOR ANTICIPATED SIZE CONDITIONS, DURING THE CONSTRUCTION PERIOD. THESE ESC FACIUTES SHALL BE UPGRADED AS NEEDED FOR UNEXPECTED STORM EVENTS AND MODIFIED TO ACCOUNT FOR CHANGING SITE CONDITIONS (EG., ADDITIONAL SUMP PUMPS, RELOCATION OF DITCHES AND SILT FENCES, ETC.). 8. THE ESC FACIUTES SHALL BE INSPECTED DAILY BY THE APPUCANT/ESC SUPERVISOR AND MAINTAINED TO ENSURE CONTINUED PROPER FUNCTIONING. WRITTEN RECORDS SHALL BE KEPT OF WEEKLY RENEWS OF THE ESC FACIUTES DURING THE WET SEASON (OCT. 1 TO APRIL 30) AND OF MONTHLY RENEWS DURING THE DRY SEASON (MAY 1 TO SEPT. 30). 7. ANY AREAS OF EXPOSED SOILS. INCLUDING ROADWAY EMBANKMENTS, THAT WILL NOT BE DISTURBED FOR TWO DAYS DURING THE WET SEASON OR SEVEN DAYS DURING THE DRY SEASON SHALL BE IMMEDIATELY STABIUZED WITH THE APPROVED ESC METHODS (E.G.. SEEDING MULCHING, PLASTIC COVERING. ETC.). 8. ANY AREA NEEDING ESC MEASURES NOT REQUIRING IMMEDIATE ATTENTION SHALL BE ADDRESSED WITHIN FIFTEEN (15) DAYS. 9. THE ESC FACIUTES ON INACTIVE SITES SHALL BE INSPECTED AND MAINTAINED A MINIMUM OF ONCE A MONTH OR WITHIN FORTY -OGHT (48) HOURS FOLLOWING A STORM EVENT. 10. AT NO TIME SHALL MORE THAN ONE (1) FOOT OF SEDIMENT BE ALLOWED TO ACCUMULATE WITHIN A CATCH BASIN. ALL CATCH BASINS AND CONVEYANCE LINES SHALL BE CLEANED PRIOR TO PAVING. THE CLEANING OPERATION SHALL NOT FLUSH SEDIMENT -LADEN WATER INTO THE DOWNSTREAM SYSTEM. 11. STABILIZED CONSTRUCTION ENTRANCES AND ROADS SHALL BE INSTALLED AT THE BEGINNING OF CONSTRUCTION AND MAINTAINED FOR THE DURATION OF THE PROJECT. ADDITIONAL MEASURES, SUCH AS WASH PADS. MAY BE REQUIRED TO ENSURE THAT ALL PAVED AREAS ARE KEPT CLEAN FOR THE DURATION OF THE PROJECT. 12. ANY PERMANENT FLOW CONTROL FACIUTY USED AS A TEMPORARY SETTUNG BASIN SHALL BE MODIFIED MTH THE NECESSARY EROSION CONTROL MEASURES AND SHALL PROVIDE ADEQUATE STORAGE CAPACITY. IF THE FACIUTY IS TO FUNCTION ULTIMATELY AS AN INFILTRATION SYSTEM, THE TEMPORARY FACIUTY MUST BE GRADED 50 THAT THE 801101.1 AND SIDES ARE AT LEAST THREE FEET ABOVE THE FINAL GRADE OF THE PERMANENT FACIUTY, 13. WHERE STRAW MULCH FOR TEMPORARY EROSION CONTROL IS REQUIRED, IT SHALL BE APPUED AT A MINIMUM THICKNESS OF 2 TO 3 INCHES. 14, PRIOR TO THE BEGINNING OF THE WET SEASON (OCT 1). ALL DISTURBED AREAS SHALL BE RENEWED TO IDENTIFY WHICH ONES CAN BE SEEDED IN PREPARATION FOR THE WINTER RAINS. DISTURBED AREAS SHALL BE SEEDED WITHIN ONE WEEK OF THE BEGINNING OF THE WET SEASON. A SKETCH MAP OF THOSE AREAS TO BE SEEDED AND THOSE AREAS TO REMAIN UNCOVERED SHALL BE SUBMITTED TO THE CITY OF TUKWWLA INSPECTOR. THE CITY OF TUKWILA INSPECTOR CAN REQUIRE SEEDING OF ADDITIONAL AREAS IN ORDER TO PROTECT SURFACE WATERS, ADJACENT PROPERTIES, OR DRAINAGE FACIUTES. RECEIVE DEC 21 2004 COMMUNITY DEVELOPMENT Cali before you Dig. 1 -800- 424 -5555 UNDERGROUND SERVICE (USA) I exam ot/l /oe 1EXPITY9 06/26/06 I DESIGNED HPP DRAWN HPP CHECKED PDC 1 SRI REVISED PER OWNER RENEW COMMENTS REMSION PDC 7/03 DATE FPN BY APPb Engineering Planning Surveying Penhallegon Associates Consulting Engineers, Inc. 750 Sixth Street South Ktrktand, WA 98033 www.poceengre.corn PH, (425) 827 -2014 t -800- 945 -8408 FAX: (425) 827 -5043 Kirkland . St.ttle • Feder i Weir • Portland R.S. PEDERSEN P.O. BOX 1518, MARYSVILLE, WA 98270 REFERENCE INFORMATION FIELD BOOK: SURY. CPU FILE: DATUM: DATE JULY, 2003 SCALE NONE FOSTER RIDGE SHORT PLAT NOTES & TESCP DETAILS JOB NUMBER 98673.01 DWG NO. P8673dt1.dwq SHEET C8 of 11 CATCH BASIN DIMENSION TABLE CIA WALL ICKNES` BASE ICKNE ICKNEE S E • MINIMUM DISTANE BETWEEN KNOCKOUTS BASE OR 2 1N /FT IN REINF EACH CING DIREC TION INTEGRAL BASE SEPARATE BASE 48" 4' 6" 36' B" 0.15 0.23 54' 4 1/2' E" 42" 8- 0.19 0.19 Greeter than Lees than or equal to Minimum Dimensions Type Thickness Width lntgtlt Height 0 5 Rock Ming" I fool Diameter 4.6 feet 8 feet or 4 x diameter, whichever le greater Crown +Hoot 8 10 Riprp 2 feet Diameter • 6 1cet or 3 x diameter, whichever le grater 12 feet or 4 x denuder, whichever Is grater Crown +1 loot 10 20 Gabon outlet As reguicd As required As required Crown •1 foot 20 N/A Engineered enemy dissipater required a S STORM DRAINAGE NOTES 1. NO PART OF THE DRAINAGE SYSTEM SHALL BE COVERED, CONCEALED OR PUT INTO USE UNTIL IT HAS BEEN TESTED. INSPECTED, AND ACCEPTED BY THE CITY OF TUKWILA. 2. A PREcONSTRUCTION MEETING AND A 24 -HOUR NOTICE SHALL BE REQUIRED PRIOR TO STARTING NEW CONSTRUCTION. IT IS THE CONTRACTOR'S RESPOIISIBIUTY TO ARRANGE THE PRECONSTRUC11ON MEETING WITH ALL 12. CONCERNED PARTIES AND TO OBTAIN ANY AND ALL REQUIRED PERMITS FROM MAPLE VALLEY AND OTHER AGENCIES PRIOR TO STARTING CONSTRUCTION. IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO NOTIFY THE aTY of TUKWILA CONSTRUCTION INSPECTOR A MINIMUM OF 24 HOURS N ADVANCE OF 13, BACKRWNG ALL CONSIRUC11ON. 3. THE CONTRACTOR LIST HAVE A SET OF PLANS APPROVED BYRE CITY OF TUCWIA, ON-SITE AT ALL TIMES DURING THE COURSE OF PROJECT CONSTRUCTION. 4. BEFORE ANY CONSTRUCTION MAY OCCUR, ME CONTRACTOR SHALL HAW PLANS WHICH HAW BEEN SIGNED AND APPROVED BY THE QTY OF TUKWILA PUBLIC FEDERAL AND DODEPARTMENT. E E OBTAINED PERMITS. AM SHALL COUNTY, STATE. HAW POSTED ALL REQUIRED BONDS AND HAUUNG TRUSTS. 5. MINIMUM COVER OVER STORM DRAINAGE PIPES AND FACILITIES SHALL BE 2 FEET, UNLESS OTHERWISE SHOWN AND APPROVED. 8. TEST OBSERVATIONS AND INSPECTIONS FOR STORM DRAINAGE SYSTEM SHALL BE BY THE CITY OF TUKWILA CONSTRUCTION INSPECTOR. 7. ALL DAMAGES INCURRED TO PUBLIC AND/CM PRNATE PROPERTY BY THE CONTRACTOR DURING THE COURSE OF CDNSTRUCTON SHALL BE PROMPTLY REPAIRED TO THE SATISFACTION OF THE OSY OF 1UKW1U CONSTRUCTION INSPECTOR BEFORE PROJECT APPROVAL AND/OR THE RELEASE Of THE PERFORMANCE BOND. 8. NO PART CF THE STORM DRAINAGE SYSTEM SHALL BE PUT INTO USE UNTIL IT HAS BEEN TESTED, INSPECTED. AND APPROVED BY THE CITY OF TUKWILA CONSTRUCTION INSPECTOR. 9. THE CONTRACTOR SHALL CALL AND NOTIFY DIA -A -DIG AT 1- 800 -424 -5555 A MINIMUM OF 2 DAYS BEFORE DIGGING OR GRADING OPERATIONS OCCUR. 10. THE CONTRACTOR SHALL BE RESPONSIBLE FOR THE VERIFICATION OF EXISTING UTILITY LOCATIONS WHETHER OR NOT THESE UTILITIES ARE SHOWN ON THE PUNS. THE CONTRACTOR SHALL EXERCISE AU. CARE TO AVOID DAMAGE 1O ANY UTILITY. IF CONFLICTS WITH DOSING UTILITIES ARISE DURING CONSTRUCTION. THE CONTRACTOR SHALL NOTIFY THE CITY OF TUKWILA CONSTRUCTION INSPECTOR AND ANY CHANGES REQUIRED STALL BE APPROVED BY THE aTY ENGINEER PRIOR TO COMMENCEMENT OF RELATED CONSTRUCTION ON THE PROJECT. TABLE 4.2.2.1. ROCK PROTECTION AT OUTFALLS Discharge Vekxdty at Design Flow (fps) P Rock Iln ng shell be quarry spate wIth gradation es follows: Passing 8 -Inch square sieve: 100% Passing 2.inch square Nave: 40 to 60% mndmum Passing 3)4 -Inch square save: 0 to 10% maximum rte Rlprap eta be reasonably well graded with gradation as follows: Maximum alone ete: 24 inches (nornkrl diameter) Msdlan stone size: 18 Inches Minimum stone she. 4 Inches Nor: R/pep sizing governed by side slopes on outlet dermal la assumed to be approximately 3:1. 2'x12' PRESSURE - TREATED LEVEL PLATE SPREADER OUTLET PIPE 4'x4' PRESSURE TREATED 2' (MIN.) EMBEDDED INTO EX. GROUND 2'x2' DEEP NOTCHES 16 O.C. ` ANCHOR POSTS SPACED 6' O.0 REQUIRED PROTECTION / 2' MIN. CROSS SFCTON EXISTING GROUND 2" MIN. DEPTH ROCK LINING SEE TABLE 4.2.2.1 THIS SHEET SPREADER MUST BE LEVEL EL 204.01 E 2' MIN. PRESSURE - TREATED LEVEL PLATE SPREADER NOTE: LEVEL FLOW SPREADER SHALL BE CONSTRUCTED SO AS TO PREVENT POINT DISCHARGE AND /OR EROSION. GRADE BOARD MUST BE LEVEL AUGN TO FOLLOW CONTOURS OF SITE. FILTER FABRIC LEVEL FLOW SPREADER DETAIL NTS J 11. 15. 24' MIN COVER PLAN ALL REQUESTS FOR INSPECTIONS AND FOR 'MESSING TESTS SHALL BE SCHEDULED WITH THE PUBLIC WORKS INSPECTOR A MINIMUM OF 24 HOURS IN ADVANCE, AND NO GREATER THAN 7 DAYS IN ADVANCE FAILURE TO GIVE ADEQUATE ADVANCE NOTICE MAY RESULT IN DELAYS TO THE CONTRACTOR FOR REQUIRED INSPECTIONS. ALL STORM DRAINAGE MAN EXTENSIONS WITHIN THE PUBLIC RIGHT -OF- WAY OR IN EASEMENTS MUST BE STAKED FOR LINE AND GRADE PRIOR TO STARTING CONSTRUCTION. BEFORE THE CITY OF TUKWILA ACCEPTS STORM DRAINAGE IMPROVIDENTS, THE CONTRACTOR SHALL SUPPLY THE OTT CONSTRUCTION INSPECTOR WITH PHOTOSTATIC MYLAR AS- BLILTS OF THE STORM DRAINAGE SYSTEM BEARING THE STAMP AND SIGNATURE OF A REGISTERED PRCIFESSONAL ENGINEER OR LAND SURVEYOR. IF THE PUNS WERE GENERATED USING CADD, THE CONTRACTOR SHALL SUPPLY A FLOPPY DISK OF THE CONSTRUCTION PLANS IN ADDITION TO 11E MYLAR AS- GUILTS. THE CITY OF 1UKWWLA CONSTRUCTION INSPECTOR MUST REVIEW AND APPROVE ALL AS- GUILTS. THE CONTRACTOR SHALL MAKE AU. CHANGES TO THE AS -BULTS AS DIRECTED BY THE CITY CONSTRUCTION INSPECTOR BEFORE THE 0TY WILL APPROVE AND ACCEPT THE AS- GUILTS. 14. ALL STORM DRAINAGE IMPROVEMENTS SHALL BE DESIGNED AND CONSTRUCTED IN ACCORDANCE WITH THE LATEST EDITION OF THE CITY OF TUKWILA DESIGN AND CONSTRUCTION STANDARDS AND SPECIFICATEONS AND THE STANDARD SPECIFICATIONS FOR ROAD, BRIDGE AND MUNICIPAL CONSTRUCTION PREPARED BY MOOT AND THE AMERICAN PUBLIC WORKS ASSOCIATION (APWA), AS AMENDED BY THE CITY OF TUIO LA. THE STORM DRANAGE SYSTEM SHALL BE CONSTRUCTED ACCORDING TO THE APPROVED PLANS, WHICH ARE ON FILE WITH THE CITY OF TUKWILA. ANY DEVIATION FROM THE APPROVED PLANS WILL REQUIRE WRITTEN APPROVAL FROM THE CITY OF TUKWILA DEPARTMENT OF PUBLIC WORKS. 16. ALL RETENTION/0EI04T1ON FACTURES MUST BE INSTALLED AND IN OPERATION PRIOR TO OR IN CONJUNCTION WITH ALL CONSTRUCTION ACTIVITY UNLESS OTHERWISE APPROVED BY THE CITY OF TUKWILA DEPARTMENT OF PUBLIC WORKS. 17. ALL PIPE AND APPURTENANCES SHALL BE LAID ON A PROPERLY PREPARED FOUNDATION IN ACCORDANCE WITH SECTION 7-02.3g? OF THE CURRENT STATE OF WASHINGTON STANDARD SPECIFICATION F ROAD AND BRIDGE CONSTRUCTION. THIS SHALL INCLUDE NECESSARY LEVELING OF TINE TRENCH BOTTOM OR THE TOP OF THE FOUNDATION MATERIAL AS WELL AS PUCEIMENT AND COMPACTION OF REQUIRED BEDDING MATERIAL TO UNIFORM GRADE SO THAT THE ENTIRE LENGTH OF THE PIPE WILL BE HOPE PIPE SUPPORTED ON A UNIFORMLY DENSE UNYIELDING BASE. ALL PIPE BEDDING SHALL BE APWA CLASS 'C', WITH THE DECEPTION OF PVC AND LOPE PIPE. ALL TRENCH SACKFUL SHALL BE COMPACTED TO MINIMUM 95% FOR PAVEMENT AND STRUCTURAL FILL AND 90% OTHERWISE PER ASTM D -1557 -00. PEA GRAVEL. BEDDING SHALL BE PLACED 8' OVER AND UNDER PVC AND L.CPE PIPE. 6' SAND O CURTAIN DRAIN DETAIL ELEVATION NON -WOVEN GEOTEXTILE FABRIC. MIRIFl 140 N OR EQUAL. 3/4' - 2 WASHED DRAIN ROCK 6' PVC PERF. PIPE REFER TO SHT. CO FOR LOCATION AND CONNECTION TO TO STORM SYSTEM. CENTER PIPE IN TRENCH, PROVIDE CLEANOUT PER PUN. 18' TRENCH WIDTH 18. ALL CATCH BASIN GRATES SHALL BE DEPRESSED 0.10 FEET BELOW PAVEMENT LEVEL OR GROUND SURFACE 19. ALL BUILDING DOWNSPOUTS AND FOOTING DRAINS SHALL BE CONNECTED TO THE STORM DRAINAGE SYSTEM, UNLESS APPROVED BY ME CITY OF TUKWILA DEPARTMENT OF PUBLIC WORKS. 20. ISSUANCE OF THE BUILDING OR CONSIRIICTION PERMIT BY THE CITY OF TUKWILA DOES NOT R I.LW THE OWNER OF THE CONTINUING LEGAL OBLIGATION AND /OR UABIUTY CONNECTED VAN STORM SURFACE WATER DISPOSITION. FURTHER, THE CITY OF TUKWILA DOES NOT ACCEPT MY SYSTEM M R FOLLOWING FUNCTIONING STRUCTCTION AND CE P AS °TINNED N THE TUKWILA STANDARDS. NOTES: ANCHOR RING OVER EXCAVATE MIN. 18' INTO UNDISTURBED SOIL BUTT FUSION WELD (TYP.) x\ / \ /\ /\ / OHDPE PIPE BLOCK AND ANCHOR RING NTS INSTALL CAP NOT PLUG FLUSH WITH FG 10 TYPICAL STORM CLEANOUT NTS O INSTALL MANHOLE ACCESS SO THAT LIFT GATE IS VISIBLE THROUGH OPENING AND STEPS CLEAR INLET AND RESTRICTOR UNIT. 0 FRAME MID GRATE O 1' VENT HOLE. 0 SEPARATOR ASSEMBLY. O POLYPROPLENE PLASTIC STEP O MIN CLEARANCE: 36'FOR OUTLETS OF 24" AND LARGER 18' FOR OUTLETS OF T8- AND SMALLER O 54' TYPE 2 CB OR LARGER. 0 BAND STRAP WITH GASKET. O SEE PLAN AND SPECIFICATIONS FOR SIZE AND TYPE OF PIPE ENTERING AND EXITING CB. 10 SECURE SEPARATOR TO CB WITH 8 GA ALUMINUM STRAP. BOLT TO CB WALL WITH STAINLESS STEEL ANCHOR BOLTS AND TACK WELD TO SEPARATOR UNIT. 11 LIFT HANDLE 12 INV. EL : SEE PLANS 13 CLEAN OUT AT 8" DIA MIN. 12' FOR 24' DA. AND URGER OUTLET PIPE. ib GROUT ALL JOINTS INSIDE AND OUTSIDE. O FLOATABLE MATERIAL SEPARATOR DETAIL NTS ' TRENCH UNE 1 CONC. RESTRAINING BLOCK SECTION \ HOPE BUTT FUSED ANCHOR RING MIN. 2 WRAPS OF /10 WIRE FOR MAGNETIC LOCATION FINDER TRENCH WALL TRENCH WALL CAST IN PLACE CONC. RESTRAINING BLOCK FORMED IN PLACE DETAIL -6' 3 SWILBEEMEDLIE AS Y D-3034 SDR 35. GASKET JOINT - AU. SZES, BEDDING CLASS 8, TYPE I OR I. CONCRETE: ASTM C -14 CLASS II FOR SMAL THAN 1Y MN C-76 CLASS IV FOR 12- AND 15 ASTM C -76 CLASS II FOR 18- AND LARGER DUCTILE NON: ANSI A2151 CLASS 50 p�pE) SMOOTH � TYPE M. M. CATEG RYY 4 OR 5.GR OR P34, HOPE: HOPE PIPE TO BE DR 26, 5 PS PIPE W/ 1/2 WALL THICKNESS. NOTE TYPE OF MATERIALS USED SHALL BE AS INDICATED ON THE CONSTRUCTION DOCUMENTS. WR 24 TRENCH WIDTH CURTAIN DRAIN -STORM DRAIN 0 COMMON TRENCH DETAIL NTS 0/4- DIA HOLE 3/4' - 2" WASHED DRAIN ROCK GRINNELL TYPE 212 PIP CLAMP WITH GALVANIZED FINISH OR EQUAL BURT PIPE CROWN FLUSH W/ Cl GRADE PLATE (SEE DETAIL) MATERIAL TO BE ASTM A 36 GALVANIZED AFTER FABRICATION PER ASTM A 153 FLATTEN TO POINT NON -WOVEN GEOTEXT1LE FABRIC MIRIFl 140 N OR EQUAL 1Y LCPE STORM DRAIN PIPE. REFER TO SHT. C6 FOR LOCATION. CENTER PIPE IN TRENCH. 6" PVC PERF. PIPE REFER TO SHT. C6 FOR LOCATION AND CONNECTION TO TO STORM SYSTEM, CENTER PIPE IN TRENCH. PROIDE PLUG IN UPSTREAM END, 4' 2 PLATE DETAIL a ()PIPE ANCHOR DETAIL NTS 1 - 03 BAR HOOP 2 - M3 BAR HOOP M3 BAR EACH CORNER 13 BAR EACH SIDE N MATERIAL TO BE ASTM A 36 1/4' PLATE GALVANIZED AFTER FABRICATION PER ASTM A 123 #3 BAR EACH WAY COVER PIPE W /CUT MATERIAL CONTINUOUSLY FUSED HOPE PIPE COLLAR (2 PIPE) SEE PLATE DETAIL SIDE' PIPE STAKES EACH SIDE E PIPE RAME ANTI ORATE (SEE STANDARD PLAN FOR DETAILS) 48' DIA -6' 54' DIA -8' b' RISER SATT1TN DS-25 TYPE I CATCH BASIN NTS CATCH BASIN FRAME MID GRATE OR MANHOLE RING AND COVER 16' MAX 4' MIN SEPARATE CAST IN PLACE BASE PRECAST BASE WITH INTEGRAL RISER GRAVE. BACKFILL FOR PIPE ZONE BEDDING 6' MIN COMPACTED DEPTH FOR PRECAST BASES ONLY. REINFORCING STEEL (FOR SEPARATE BASE ONLY) 0.23 SO IN/FT IN EACH DIRECTION FOR 48' DIA 0.19 SO IN/FT IN EACH DIRECTION FOR 54" DIA DESIGN ASSUMPTION: SQL BEARING VALUE EQUALS 3300 //FT (MIN) OR AS APPROVED BY GEOTEGHNICAL ENGINEER '0' RING 6' SEPARATE PRECAST BASE JOINT NOTES: CATCH BASINS TO BE CONSTRUCTED IN ACCORDANCE WITH ASTM C 478 (AASHTO IA 1991) R ASTM C 890 UNLESS OTHERWISE SHOWN ON PLANS OR NOTED IN THE STANDARD SPECIFICATIONS. HANDHOLDS IN RISER OR ADJUSTMENT SECTION SHALL HAVE A 3' MINIMUM CLEARANCE. STEPS IN CATCH BASIN SHALL HAVE A 6' MINIMUM CLEARANCE NO STEPS ARE REQUIRED WHEN 'B' IS 4' OR LESS. ALL REINFORCED CAST IN PLACE CONCRETE SHALL BE CLASS A. NON - REINFORCED CONCRETE IN CHANNEL AND SHELF SHALL BE CLASS C. ALL PRECAST CONCRETE SHALL OBTAIN 4000 PSI 0 28 DAYS. PRECAST BASES SHALL BE FURNISHED WITH CUTOUT OR KNOCKOUTS. KNOCKOUTS SHALL HAVE A WALL THICKNESS OF 2" MINIMUM. KNOCKOUT OR CUTOUT HOLE SIZE IS EQUAL TO PIPE OUTER DIAMETER PLUS CATCH BASIN WALL THICKNESS. MAXIMUM HOLE SZE IS 36' FOR 4B- CATCH BASIN, 42' FOR 54' CATCH BASIN. MINIMUM DISTANCES BETWEEN HOLES 15 8'. FRAME AND GRATE OR RING AND COVER SHALL BE IN ACCORDANCE WITH STANDARD SPECIFICATIONS AND MEET THE STRENGTH REQUIREMENTS OF FEDERAL SPECIFICATION RR -F -6210. MATING SURFACES SHALL BE FINISHED TO ASSURE NON - ROCKING AT. ALL BASE REINFORCING STEEL SHALL HAVE A MINIMUM YIELD STRENGTH OF 60,000PSI AND BE PLACED M THE UPPER HALF OF THE BASE WITH 1 MINIMUM CLEARANCE. THE BOTTOM OF THE PRECAST CATCH BASIN MAY BE ROUNDED. FOR DETAILS SHOWING FRAME AND GRATE, RING AND COVER SEE STANDARD PLAN D -3 AND D -4, FOR DETAIL SHOWING LADDER, STEPS, HANDRAIL AND TOP SLAB SEE STANDARD PLAN 0 -6. FRAME AND CRATE MAY BE INSTALLED WITH FIANCE DOWN OR CAST INTO RISER. NOTES: DS -22 CATCH BASIN TYPE 2 48' & 54" NTS DMA/UNITY uc.VELOPMENT CATCH BASINS TO BE CONSTRUCTED IN ACCORDANCE WITH A51A1 C 478 I M 1991) It ASTM C 890 UNLESS OTHERWISE SHOWN ON PLANS OR NOTED IN THE STANDARD SPECIFICATIONS. AS AN ACCEPTABLE ALTERNATE TO REBAR, WELDED WIRE FABRIC HAVING A MINIMUM AREA OF 0.12 SQUARE INCHES PER FOOT MAY BE USED. WELDEQ WIRE FABRIC SHALL COMPLY TO ASTM A 497 (AASHTO M 221). WIRE FABRIC SHALL NOT BE PLACED IN THE KNOCKOUTS. THE BOTTOM OF THE PRECAST BASE SECTION MAY BE ROUNDED. PRECAST BASES SHALL BE FURNISHED MTH CUTOUTS OR 12' RISER SFCTON KNOCKOUTS. KNOCKOUTS SHALL HAVE A WALL THICKNESS OF 2" MINIMUM. KNOCKOUTS MAY BE ON ALL 4 SIDES WITH MAXIMUM DIAMETER OF 20'. KNOCKOUTS MAY BE EITHER ROUND OR "D" SHAPE. PIPE TO BE INSTALLED IN FACTORY SUPPLIED KNOCKOUTS. FLAT SLAB COVER HANDHOLD RISER OR ADJUSTMENT SECTION RECTANGULAR ADJUSTMENT SECTION OR CIRCULAR ADJUSTMENT SECTION STEPS AND HANGING LADDER (AS MANUFACTURED BY LANE(POLY PROPYLENE/ GRADE 60 BARS, WITH REFLECTORS)) ORTAR (TIP) KNOCKOUT OR CUTOUT HOLE SIZE IS EQUAL TO PIPE OUTER DIAMETER PLUS CATCH BASIN WAIL THICKNESS. THE MAXIMUM DEPTH FROM THE FINISHED GRADE TO THE PIPE INVERT IS 5' -0'. RISER SECTION SHALL NOT EXCEED 1/22/FT. BASE SECTION AND \ 11PRFJ.AST RASE CATCH BASIN FRAME AND GRATE SHALL BE IN ACCORDANCE WITH SECTION STANDARD SPECIFICATIONS AND MEET THE STRENGTH MATING REQUIREME SURFACES SHA (MEASUREMENT AT FEDERAL SPECIFICATION RR -F -621 D. LL BE THE TOP OF THE FINISHED TO ASSURE NON- ROCKING AT. OF BASE) FRAME AND GRATE MAY BE INSTALLED WITH FLANGE DOWN OR CAST 4 . INTO RISER. 12' MAX ENFORCING STEEL (FOR PRECAST BASE W/ INTEGRAL RISER) 0.15 SO IN/FT IN EACH DIRECTION FOR 48' DIA 0.19 SD IN/FT IN EACH DIRECTION FOR 54' DIA NOTE: I. NO STEPS ARE REWIRED WHEN HEIGHT IS 4' OR LESS. 2. THE BOTTOM OF THE PRECAST CATCH BASIN MAY BE ROUNDED. 3. FRAME AND GRATE MAY BE INSTALLED WMTH FLANGE DOWN OR CAST INTO ADJUSTMENT SECTION. 4. KNOCKOUTS SHALL HAVE A WALL THICKNESS OF 2' MINIMUM TO 2 1/2' MAXIMUM. 5. GROUT ALL JOINTS INSIDE AND OUTSIDE. 7CEIVED c.: 1 21 2004' Call before you Dig. 1- 800 - 424 -5555 UNDERGROUND SERVICE (USA) I mamma 01/38/06 I I 60 00/20 /06 I DESIGNED HPP DRAWN HPP CHECKED PDC 2 REVISED PER Ott COMMENTS REVISED PER O9NER REVIEW COMMENTS 4/13/04 /03 SYM REASON DATE HPP FPH BY PDC PDC APP'D Engineering Planning Surveying Penhallegon Associates Consulting Engineers, Inc. 750 Sixth Street South Kirkland. WA 98033 ww .paceen 9 ro.com PH: (4251 827 -2014 1- 800 -945 -8408 FAX: (425) 827 -5043 Kirkland Seattle Federal Way Portland R.S. PEDERSEN P.O. BOX 1518, WA 98270 REFERENCE INFORMATION FIELD BOOK: SURV. CPU FILE: DATUM: DATE JULY 2003 SCALE VARIES FOSTER RIDGE SHORT PLAT STORM DRAINAGE NOTES & DETAILS JOB NUMBER 98673.01 DWG NO. P8673dt2dwq SHEET C9 OF 11 STAGE (FT) ELEVATION (FT) STORAGE (CU.FT) DISCHARGE (CFS) 0.00 185.20 0 0 0.54 185.74 484 0.005 1.04 188.24 932 0.007 1.54 188.74 1380 0.008 2.04 187.24 1828 0.010 2.54 187.74 2,278 0.011 3.04 188.24 2,724 0.012 3.54 188.74 3,172 0.013 4.04 189.24 3.620 0.014 4.54 189.74 4,068 0.015 5.00 190.20 4,480 0.027 OVERFLOW AT EL. 190.20 5.10 190.30 4,570 0.489 TOP VAULT (INSIDE) 190.70' NOTES: ov.f.ISar.NO.Namn OisieCeel ORNAMENT/0,0x NINO0.41.. NAY wTN SE RERINITED emcee. TWA O. PONT 'O RWOR SEE ABOVE FOR ROCKERY DETAILS ernOCRMee ROW., a..Rxx, Loe IN NES AR 0•00.0403 TO CAR. e u aweTeeauv m a w roon¢s Of StRCrven (MELLO. OTHER S1 ROOCEIRE RASE PM SIMMER xaaa VIEW FACING ROCKERY AND OUTLET PIPE 1. ROCK SHALL BE SOUND AND HAVE MINIMUM DENSITY OF 160 POUNDS PER CUBIC FT. 2. THE LONG DIMENSION OF ALL ROCKS SHALL BE PLACED PERPENDICULAR TO THE WALL EACH ROCK SHOULD BEAR ON TWO ROCKS IN THE TIER BELOW. 3. ROCKERIES ARE EROSION CONTROL STRUCTURES. NOT RETAINING WALLS. NATIVE MATERIAL MUST BE STABLE AND FREE-STANDING IN CUT FACE. 4. IMPROVED WALKING SURFACES ABOVE ANO ADJACENT TO ROCKERIES OVER 30' IN HEIGHT SHALL BE PROTECTED BY A RAIL CONFORMING TO UBC 1711. S. BASE ROCK IS 2 -MAN MINIMUM. (2 MAN ROCK • 200 -700 LB 18'.28') 6. SHOP DRAWING FOR ALL RAILING MUST BE CITY APPROVED PRIOR TO FABRICATION. NOT TO SCALE City of Tukwila ROCKERY & SIDEWALK WI SAFETY RAIL . RS -05 REVISION s.: 08.03 ....ov.'- 8. SHELTON NOTES: cYOCKERY DETAIL NTS 1. PIPE SIZES AND SLOPES: PER PLANS. 2. OUTLET CAPACITY: NOT LESS THAN COMBINED INLETS. 3. PIPE SUPPORTS AND RESTRICTOR SHALL BE OF SAME MATERIAL AND BE ANCHORED AT 3' MAX. SPACING BY 5 /B" DAM. STAINLESS STEEL EXPANSION BOLTS OR EMBEDDED 2' IN WALL. 4. THE RESTRICTOR SHALL BE FABRICATED FROM .060' ALUMINUM. PVC, CPE, OR HDPE PIPE PER THESE ENGINEERING STANDARDS. 5. OUTLET SHALL BE CONNECTED TO CULVERT OR SEWER PIPE WITH SUITABLE COUPLER OR GROUTED INTO THE BOIL OF CONCRETE PIPE. 6. THE VERTICAL RISER STEM OF THE RESTRICTOR SHALL BE THE SAME DIAM. AS THE HORIZONTAL OUTLET PIPE, WITH AN 8" MIN. (YAM. 7. FRAME AND LADDER OR STEPS OFFSET SO THAT: A. SHEAR GATE IS VISIBLE FROM TOP. B. CUMB DOWN SPACE IS CLEAR OF RISER AND SHEAR DATE C. FRAME IS CLEAR OF CURB. B. IF METAL OUTLET PIPE CONNECTS TO CEMENT CONCRETE PIPE OUTLET PIPE TO HAVE SMOOTH 0.D. EQUAL TO CONCRETE PIPE 1.0 LESS 1/4'. FLOW RESTRICTOR RISER NOTES PROVIDE HOOK T SECURE SHEAR GATE HANDLE TO WALL SHEAR CATS INV OUT - 185.20 OVERFLOW - 190.20 BOTTOM ORIFICE INV ELEV 181.20 - 0.50'0 TOP NOTCH RECTANGULAR WON INV ELEV 190.11, 1.75' WIDE RISER DIA - 18; EL 190.20 DESIGN RELEASE RATES: ELEV OVERFLOW. 190.20 INFORMATION PLATE A STAINLESS STEEL PLATE SHALL BE PERMANENTLY ATTACHED INSIDE THE CONTROL STRUCTURE. ENGRAVED INFORMATION ON THE PLATE SHALL INCLUDE: PROJECT NAME AND NUMBER: FOSTER RIDGE SUBDIVISION DEVELOPER: PARKSIDE MANAGEMENT ENGINEER: PENHALLECON ASSOCIATES CONSULTING ENGINEERS CONTRACTOR: DATE CONSTRUCTED: DATE OF MANUAL USED FOR DESIGN: 1998 KCSWDM RELEASE MECHANISM: 18' RISER W/ ONE ORIFICE AND RECTANGULAR WEIR ORIFICE ELEV. - 181.20, DIA... 0.50" NOTCH WEIR ELEV. - 190.11, LENGTH - 1.75' STAGE. STORAGE, DISCHARGE: SEE TABLE ABOVE, THIS VT. IAN. 2' COMPACTED DEPTH CLASS 'B' ASPHALT CONCRETE 4' A.T.B. 2' CRUSHED SURFACE BASE COURSE - FIRM SUBGRADE ADDITIONAL GRAVEL BASE MAY BE REQUIRED DEPENDING ON SOL CONDITIONS .. 2 AMMERHEAD SECTION NTS MIN. 2" COMPACTED DEPTH CLASS 'B' ASPHALT CONCRETE 6 ' CRUSHED SURFACE BASE COURSE - FIRM SUBGRADE, ADDITIONAL GRAVEL BASE MAY BE REQUIRED DEPENDING ON SOL CONDITIONS O 12 -FT ACCESS ROAD SECTION 2 YR STORM - 0.012 CFS 10 YR STORM - 0.022 CFS 100 YR STORM - 0.186 CFS 18'• STANDPIPE NTS DETENTION VAULT STAGE - STORAGE - DISCHARGE TABLE INV. 185.20 RESTRICTOR STRAPS: 3' x .090' EL 181.20 1 RESTRICTOR STRAPS 3' x .090' SOLID PLATE W/ 0.50'0 SHOP DRILLED, SHARP EDGED ORIFICE FLOW RESTRICTOR RISER 24' DA. SOLID LOCKING LID ELEV. 192.51 RESTRICTOR STRAP FASTENED TO VAULT WALL (NOT SHOWN) MIN. 3 REWIRED. 1' DIAMETER WASHED GRAVEL MIN 2' GRAVEL UNDER PIPE, 12' WOE MIN. 4' DIAMETER PERF. PVC. SOR 35 PIPE/ AASHTO M278/ A5TM 3034: MIN IS CONTINUOUS SLOPE TO OUTLET, PIPE WRAPPED IN FILTER FABRIC (MIRAFI OR EQUIVALENT) VAULT FLOOR ELEV - 181.20 A L AS SPECIFIED RESTRICTOR RISER SEE DETAIL THIS 5HT. 16' 41/'4 1 4 2 3/ ®THICKENED EDGE NTS 11/18' x 2' Splice slot In channel and splice plots for 5/8' carriage bolt. he rat and washer 11/16' Spkce holes for 5/8 camcge bolts 1/4' 1' 5/8'1 1/'1 5/0 1 3 4' _ - --_ r \► �• IW4 � ` ' .. ice- , line c www - -- _woo - -- -f♦ 11W_ ta�7 b OM: $$ Splice clt"Olots 1142P) Post trot slots ( TYP ) 54' DIA. TYPE 1 1 ' -B 1/2" RAIL ELEMENT 13• -6 1/2' 8 -2 1/4 8 n_ fad tMMtlo IL=_ =_ M ME __p A =.a r - 1t�E _ r Ida N -s o. ta, _ ■_•a loo 2 Splice M • (T /4' x 4 ' Poe bolt slots (TYP) MANSION SECTION DETAIL °GUARD RAIL DETAIL NTS 3' MIN. (TYP) SUMP ELEV - 178.20 VAULT FLOOR 41 4 41/ OUTLET IE 185.20 ELEV - 180.80 SUMP ELEV - 178.20 ACCESS RISER °COMBINED DETENTION/WO VAULT NTS ll 2' bolt Not2(TIP)' Post 29/32" x 1 1/8' Splice bolt slop ( TYP ) 0.5' MIN. 3/8' x 4 1/2' x 7 3/4' Splice plate C6x8.2 11/18' x 2' Poet bolt slot In channel and I� spice plate for 5/8' button heod bolt with 1/32' oval grip and recessed nuL CHANNEL RAIL SPLICE NOTES 1. Guardrail post spacing for Types 1 through 4 shall be 6' -3' on centers. 2. A toleroncs of 3 percent on any dimenslan of the rail element will be allowed. 3. Timber block shall be toe noiled to post with s 16d galvanized nail to restrict block rotation. 4. Post and blocks shell be 6'x8' or 8'x8" treated timber. Posts and blocks may be S45 or rough sawn. Twe 1 an4 2 rail 8 x 18 button hood bolt with 7/32' oval grip and recessed hex nut 56 SECTION A -A N.T.S. 5/8' x 1 1/4' Button head splice bo girth 7/32' oval grip and recessed hex not (eight required per splice). Screwdriver slot or milled wrench shoulder, in bolt heads. 2 MIN. VAULT FLOOR ELEV - 180.80 WOOD POST ASSEMBLY DETAIL ACCESS RISER ELEV - 181.20 24' DIA SOLID LOCKING UD ELEV. 198.00 ELEV. - 181.12 VAULT FLOOR - 180.76 VAULT FLOOR ELEV - 181.20 PROVIDE 12' is VAULT VENT 1 3/4' for T y p lt e i and Type 2 only NLET $ee Note 4 100-YR DETENTION J STORAGE ELEV - 190.20 WATER DUALITY ELEV. - 185.20 VAULT FLOOR ELEV - 181.20 LADDER POLYPROPYLENE PLASTIC STEPS SEE DETAIL THIS SHEET VAULT FLOOR ELEV - 181.20 VAULT FLOOR A ELEV - 181.20 t 100 YEAR DETENTION STORAGE ELEV - 190.20 WATER DUALITY ELEV - 185.20 DEAD STORAGE ELE/- 182.20 3' °RAILING DETAIL SIDE ELEVATION 14' ELEVATION SECTION B -B NTS POST BASE DETAIL NON - SLIP TREAD SURFACE • end end cement grout 16 gags goNanlzed Steel sleeve n -shrink grout DETENTION VAULT GENERAL NOTES: 1. CONTRACTOR TO SUBMIT DETENTION VAULT SHOP DRAWINGS THAT ARE SIGNED AND STAMPED BY A UCENSED STRUCTURAL ENGINEER TO CITY OF IUKWILA, CIVIL ENGINEERING CONSULTANT AND GEOTECHNICAL ENGINEERING CONSULTANT PRIOR TO CONSTRUCTION. 2. IN UEU OF A REMOVABLE BAFFLE, CONTRACTOR MAY USE A BAFFLE WALL SUSPENDED FROM THE VAULT CEILING. 3. DETENTION VAULT AND ACCESS LIDS SHALL BE DESIGNED TO SUPPORT H2O LOADING. 1/2' GRADE 80 REINFORCING STEEL BAR NOTES: EXTRACTION RESISTANT SURFACE PLAN SECTION A -A 1. STEPS SHALL BE STEEL REINFORCED COPOLYMER POLYPROPYLENE PLASTIC CONFORMING TO: A) ASTM D 478 AND ANSFRG M -199, EXCEPT THAT THE MINIMUM HORIZONTAL PULLOUT LOAD SHALL BE 1500 LBS. B)ASTM A 515 GRADE 60 (DEFORMED REINFORCING STEEL BAR). 2. ONLY STEPS APPROVED BY THE ENGINEER SHALL BE USED. 3. ALL FABRICATION DIMENSIONS INDICATED ARE MINIMUM. 4. THE MINIMUM TOTAL CROSS - SECTIONAL AREA OF THE EXPOSED PORTION OF THE STEP. INCLUDING THE 1/2 -INCH DEFORMED REINFORCING STEEL BAR, AND EXCLUDING THE NON -SUP TREAD SURFACE, SHALL BE ONE SQUARE INCH. 5. THE ENTIRE POLYPROPYLENE PLASTIC MATERIAL SURROUNDING THE REINFORCING STEM BAR SHALL BE CAST MONOUTHICALLY, MINIMUM COVER SHALL BE 3/16 - INCH. 6. THE FOLLOWING DIMENSIONS SHALL APPLY UNLESS OTHERWISE NOTED ON THE DRAWINGS OR STANDARD PLANS FOR SPECIFIC STRUCTURES: D. 6' is 1/4', E. 3 1/4' 0 1/4' 7. STEPS SHALL BE SPACED AT A MAXIMUM OF 12- INCHES. 8. STEPS SHALL BE INSTALLED IN ACCORDANCE WITH THE APPROVED MANUFACTURERS RECOMMENDED PROCEDURE. 5-0.05 MIN W/TROWEL FINISH STEP DETAIL NTS 1' DIAMETER WASHED GRAVEL MIN 2' GRAVEL UNDER PIPE, 12' WIDE MIN. 4- DIAMETER PERF. PVC. SOS 35 PIPE / AASHTO 18278/ A5TM 3034: MIN IS CONTINUOUS SLOPE TO OUTLET. PIPE WRAPPED IN FILTER FABRIC (MIRAn OR EQUIVALENT) RECEIVED DEC 2 2nfl4' cOM M '4i I DEVELOPtiiz.:4 Call before you Dig. 1 -800- 424 -5555 UNDERGROUND SERVICE (USA) I moo 01 /10/06 I DESIGNED HPP DRAW) ((PP CHECKED PDC 2 REVISED PER OTY COMMENTS REVISED PER OWNER RENEW COMMENTS SYM REVISION 4/13/04 7/03 HPP FPH PDC PDC DATE BY APP Engineering Planning Surveying Penhallegon Associates Consulting Engineers, Inc. 750 Sixth Street South Kirkland, WA 98033 PH: (425) 827 -2014 1 - 800- 945 -8400 Kirkland , Seattle . Federal Way ww .paceengre.com FAX: (425) 827 -5043 . Portland R.S. PEDERSEN P.O. BOX 1518, MARYSVILLE, WA 98270 REFERENCE INFORMATION FIELD BOO(: SURV. CPU F6E DATUM: DATE JULY, 2003 SCALE VARIES FOSTER RIDGE SHORT PLAT MISCELLANEOUS NOTES & DETAILS JOB NUMBER 98673.01 DWG NO. P8673dt3.dwq SHEET C10 OF 11 LE. SD 200.20 TOP SS 199.7* 3_1-39 TH S a140 e.SE I.E. SS 203.53 - TOP WA 201.0* CONSTRUCT CROSSING IN ACCORDANCE WITH D.O.E. CRITERIA FOR SEWAGE WORKS CONSTRUCTION I.E. SD 216. TOP SS 211.30 T.E X4.61' - TOP SS 218.17 4524 LE. WA 200.3 TOP SD 199.77 BW 197.00 TOP SD 194.95 i'1 _ 4� I I - _CAA VED I EXISTING RIVE WAY \ \ \ \ \ \ \ \\ `N \\ \\ \ \ \ \ ' • \ • \\ \ \ \ \ \ \ \ \\1 \ \ \ \ , \ \ \. \ \ . ` \\ \' \,.., \ \ \ \ \ \ \\\ `\ \ \\ \\ \\ `\ ` N \ \ \ \ i \ \ \ \ \ \ \ \ \ \ `\ \'l. '`\ \\ ` -\ N\�\ \ \ \ \ N \ \ \ , N \ \ \' V \\ � \\ \ \ \'.N ` \ `N \\ \ \ \ I \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ APP,X LOCATI01 '�` - EX: DRIVEWAYS i \ ' \ \ \ \ \ \ • \ \\ \ \ \, \ \ N \ � \ \ N �\ \ \ \ \ \ \ \ \ _ IE. SS 189.19 TOP 188.69' t� \ t \ \ I , SS 1E9.26' \ \ 11 v \ TOP SL1 188.13 s + d , ` , —r� \( - \p - i .....-- --- 6 , N. - 5 , .E. SS 1895\ 5,537 SF' ` L `� r ATOP SD 09.08v 1 A$' \\ 2 _ A \--t, 3 ?I L�� i .I Y" 'S F ! N \ \ .± \ / \ \rl't, / ,1 —\ /� C 0 t- \I 570- 10 Ttr 4' 9 A C E ,0 , 8 / x. r / 3,0,939 S.F. ,/0 /wetland edge_ • '1 \ i 7 ' 1 1 -- N lY 7 9 \ \ \ \ , \ N \ \ • 1 \ \ \ \ ` ,, \ \ \ , 1 \ \ • /---.,„, V ' \ \ \ 1 )�1 V A (�, � • \ 1 1 . 1 , • C ) ' ,, v 1 1 11 `N t:J 1 r ■ 1 ; l 1 T �\ \ \ \ CSI \ 1 \ I 1 `\\ \ \ \" \ \ I \ \\ 1 I I I {' ?\� \ \\ l 1l \ 11Y1 1 _ / �,, \\ \ \ \ \ \ 1 \ \ \I\ --::\--•-- S ` ..-S ,/ 1 ^e \ \ N N 1 1 \ 11 ll O\,\ \\ 1 � i 1 1 I rte I \ \\ \\ 0\��..., I1, /, / ` \ \ \ \ \ f \ \ \ N \ • N "_� \\ \\ \I 1 1 1 I I .'\ ` ' N I I \ 1 ,'` \ , /• \ 71 1l , \ t •••'-... ; \ \ I'S` \\ \ 1I II I II 1 I 1 I 1 11 • 1 1I I 1 1 1 4 I I II 1 i i 1 1 l 11 I \\ I I 11 1 � I 1 � 1 ` \ \\ \ \ 1 1 1 1 1 \ 1 \ I1 I I 1` \ 1 \ I 1 \ 1 \ I I I I I I 1r`, I UTILITY CONFLICT NOTE; CAUTION: THE CONTRACTOR SHALL BE RESPONSIBLE FOR VERIFYING THE LOCATION. DIMENSION, AND DEPTH OF ALL EXISTING UTILITIES WHETHER SHOWN ON THESE PLANS OR NOT BY POTHOUNG THE UTILITIES AND SURVEYING THE HORIZONTAL AND VERTICAL LOCATION PRIOR TO CONSTRUCTION. THIS SHALL INCLUDE CAWNG UTIUTY LOCATE 0 1 -800- 424 -5555 AND THEN POTHOLING ALL OF THE EXISTING UTILITIES AT LOCATIONS OF NEW UTILITY CROSSINGS TO PHYSICALLY VERIFY WHETHER OR NOT CONFLICTS EXIST. IF CONFLICTS SHOULD OCCUR, THE CONTRACTOR SHALL CONSULT THE ENGINEER TO RESOLVE ALL PROBLEMS PRIOR TO PROCEEDING WITH CONSTRUCTION. RECEIVED DEC' 21 20041 COMMUNITY DEVELOPMENT GRAPHIC SCALE 20 0 10 20 '40 ( IN min. ) 1 Inch = 20 feet NOTES: 1. FINAL LOCATION OF PRIVATE UTILITIES SUCH AS GAS, POWER, TELEPHONE, CABLE, ETC. TO BE LOCATED BY THE RESPECTIVE UTILITY COMPANY 2. THE NEAREST FIRE HYDRANT IS LOCATED AT THE SW CORNER OF THE INTERSECTION OF S. 140TH STREET AND 44Th AVE. S. APPROXIMATELY 800 FEET NEST OF SW CORNER OF THE PROJECT SITE. Call before you 1- 800 - 424 -5555 UNDERGROUND SERVICE (USA) I EXPIRES 01/fa /06 I DESIGNED HPP DRAWN HPP CHECKED PDC sIM REVISED PER OWNER RENEW COMMENTS REVISION FPH BY 7/03 PDC DATE APP'D Engineering Planning Surveying Penhallegon Associates Consulting Engineers, Inc. 750 Sixth Street South Kirkland. WA 96033 w. .paceen ra.corn PH: (425) 827 -2014 1- 800 - 945 -8408 FAX: (425) 827 -5043 KlreluM • Seattle , Federal Way Portland R.S. PEDERSEN P.O, BOX 1518, MARYSVILLE, WA 98270 REFERENCE INFORMATION FIELD BOCK: SURV. CPU FILE DATUM: DATE JULY 2003 SCALE 1"-20' FOSTER RIDGE SHORT PLAT COMPOSITE UTILITY PLAN JOB NUMBER 98673.01 DWG NO. P8673utydWq SHEET C11 of 11 2332 off APP/ LOCATO. EX! DRIVEWAYS 31-7 524 xaxi xr_.s txac (ra iE 1a9.10 N,iE VE D )25 4526 O \ \ \ 12, \ • \ \ \ \ \ \ \ \ \ v v v v v v v \ v vv v v v v \ \ \ \f5, \ \ \ \ \ \ \ \ \ \ \ A ER\V \ \ \ \\ \ j. \ \ \\ \ \ \ \ \ \ \ \ \ \ \\ \ \ \ \ \ \ \ \ r` `\ \ \` q.f. k \ \ \ \ \ \ \ \ � y \�, \ c \ Ll1r6 ` ` \ \ \ \ \ \r, \ \ \ �\ / \ ` ` \ \\ \\ ` \ S i` y \ \ \ \ \ ` \ \\ \ \ ` ` \ \ \ \ \ \ \ d.\ \ [ \ \ '\\ ✓ JJ��I \ ,..� se, \ \ \ ,fry \�O \ \ \ 5 \ \ \ � \ \ \ \ \ $ : 4 \ V v v <• ..,,,, V e,,, A A \ 4 4 s ''''''' \, ; `\ \ -. e v \ \\ \*--, \\ \\ \ \\ \ \ .r \ \ �* \ \;\ \ \ \ \ 8\ • \ \ \' \ \ 8: / / I of ✓ \ \\ 1\ ►'fie „ 2'02. \ I I\ ' l \\ \ \ . \ \ \ \I \ \\ \\ \ \ \\ \\ 1 \\ \ \\ `\ b \ \ \ i `, . Y\ \ \ \ \ \ `\ \ \ \ I `\ \ 138 ` ` �.\ \\ \\ / \ _ ., . I roti w 13 \ \ \ \ \ _ - \\ l3C � \ 2a \ / \ \`` '''..\ \ _, 1\ 1 \ \J \\ \ 0 �\ kl, 1 I \ / \ ,...,_... e, 6 v . 1 � \ \ V A C V v v '' � / �.' -� �" am 3, '1. \ \ ' ` y TE 18e- O \ \ \\ \ \` / / \ OPEN ACE / 92,570 . / 1 / / -, // / ,./ // / / / / / • —rx ACT c9c 9 8 2 . 2o• / / 0 0 � W =TLA \D BLj 36, //wet' w► O A• . NORTH EXISTING TREE LEGEND f'1 EXIST1N6 TREES TO BE RETAIN Kok EX151I46 TREES TO BE REMOVED LIMITS OP WORK LINE REMOVED TREES TOTAL 4-8" GAL TREWS • 14 TOTAL 8-12" CAL. TREES • 6 TOTAL 12 -16' GAL TREES • 5 TOTAL 15-24' GAL TREES • 2 TOTAL >24' GAL. TREES • 0 TREE REMOVAL CALCULATIONS REGIIIIRED REPLACEMENT TREES • 5D 4 GAL 1 8-12' GAL. 2 t2 -18' GAL 4 18-24' GAL. 6 >24' GAL 6 EXISTING TREE PROTECTION NOTES : EXISTING TREE PROTECTION FENCING AS PER TUKWILA MUNICIPAL GODS CHAPTER 1854,190 no. 5 1. ANY TREES DESIGNATED TO BE SAVED MAY NOT BE REMOVED UNLESS DEEMED HAZARDOUS, DISEASED OR DEAD SY THE OVNERS CONSULTANT AND 50 MASSED. ALL TRH TO SE SAVED THAT ARE LOCATED INSIDE THE LIMITS OF WORK SHALL Ee CLEARLY MARKED AND FLAGGED PRIOR TO EE INNING OP CONSTRUCTION. 2. TREE PROTECTION BARRIERS SHALL SE INSTALLED ALONG THE OUTER EDGE AND COMPLETELY SURROUND THE DRIPLINE OP TREES TO Be PROTECTED PRIOR TO ANY LAND DISTURBANCE. TREE PROTECTION BARRIERS SHALL BE A MINIMUM Or 6 FEET HI614, CHAIN LINK OR POLYETHYLENE LAMINAR SAFETY FENCING OR SIMILAR MATERIAL 5. ALL CONSTRUCTION ACTIVITIES, INGWDIN6 STAGING AND TRAFFIC AREAS, SHALL NOT OCCUR WITHIN FIVE FEET OP THE DRIPLINE OP PROTECTED TREES EXCEPT WARE BUILDING FOUNDATIONS REQUIRE IT. 20' 10' 0' 20' 40' SCALE 1" = 20' Design Two Four/Two Six,3nc. 2821 Northup Way, Suite 225 Bellevue, WA 98004 ph. (425) 881 -2426 fax (425) 576 -5229 www.design2426.com Landscape Architecture • Athletic Field Design • Irrigation Planning STATE OF WASHINGTON DA'1D C. H ILGERS -c, 21200 1MUN%TY u Cell before you 1 -800- 424 -5555 tMOFRpiOUND SER9122 (USA) DESIGNED DRAWN MGM sru R\1SON 'ATE BY APP Engineering Planning Surveying Penhagegon Associates Consulting Engineers, Inc. 750 Sixth Street south P19 (425) 827 -2014 KIkIa d . KhWand, WA 98033 1- 800 - 945 -8408 pec.«ngr..9e FAX: (425) 827 -5043 seawW . Fedora! Way • Porsald R.S. PEDERSEN P.O. BOX 1518 MARYSVILLE, WA 98270 RffERENCE INFaWAIION FIELD BOOK: WRY. CPu FIE: DATU1k DATE DEC. 20, 2004 SCE 1"-20' FOSTER RIDGE SHORT PLAT TREE REMOVAL PLAN .OB NUMBER 443 DWG NO. 443 -TREE slET L1 or 2 Ar ►. ►° ;L 1 524 WAN — — NM III MIN \/ED 125 v i n 4526 • 1,z) `\ N \ \ I `\ ` N \ ` N `\\ `\\ \\ \ \\ \ \ \ ' \ \ \\::‘ \ \ \ 4 \ \, \N \ \, ® \\ \\ \\ \ \ \ Y \ yL \ ` ` \ \ \ ` ` • \\ \\ \ \ \ \ \\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 41 \ \ - - \ ` •... \ \ / / \ \ N — �N `\ • " \\ r\ \ Oki EB XISTING , RI VEWAY F — "—'��- au ` -- \' � APPJI LOCATIO / E%! DRIVEWAYS � N / / / 1 ACT °9 OPEN CE 92,570, ,' 5, 9 \ N \ Q — 8 2 2 0• J �474), . Q 0 0 O BU, /wet' / WETLAND ` —J - TREES 617•150L COPt'1LN NAME OOTANICAL NAME 814141.1156 s NORTH UIORPELSDGN SU.EETGUM PAPER 6114104 LLESTER1 RED CEDAR DOUGLAS FIR OCEANSPRAY REMOVED 1143ES TOTAL 4-8' GAL TREES • 14 TOTAL 5-12' GAL 11 • 6 TOTAL 12 -18' GAL TREES • 5 TOTAL 16-24' GAL TREES = 2 TOTAL >24' GAL TREES • O R15DUIRED REPLACBCdE TR3533 • SS 20' 10' 0' 20' 40' SCALE V = 20' REPLACEMENT TREE LEGEND LK2313A1E4R STTRACF1114 UIONPEI.BDQP 11ET1A PAPTRPERA TFWA PLICATA ' SIA' PSEUDOTSWA MENZIE511 HOLODISCUS DISCOLOR SS TOTAL TREES - AS PER REPLACEMENT CALCULATIONS TREE REMOVAL CALCULATIONS 4-0• GAL 8-12' GAL 12 -16" GAL 18-24' GAL. >24' GAL Design Two Four /Two Six,.. 2821 Northup Way, Suite 225 Bellevue, WA 98004 ph. (425) 881 -2426 fax (425) 576 -5229 www.design2426.com Landscape Architecture • Athletic Field Design • Irrigation Planning 1 2 4 6 8 SIZE 25' Cal, 10' Mtn.14t. 2)' 4410'10. Ht Bie, 6' Min Flt. 15415, 6 Mitt 14t. 5 Gal, 36"MittH. AS PER TIIICWILA MUNICIPAL CODE CHAPTER 18 no. 9 STATE OF WASHINGTON D DAVI C. ILGERS QTY. R2 I3 w TT 24 r C E VE D l t C121 2004 COMMUNITY DEVELOPMENT Call before you 1- 800 - 424 -5555 UNDERGROUND SERVICE (USA) Sri FUSION DATE BY Engineering Planning Surveying Penhallegon Associates Consulting Engineers, Inc. 735 Sixth Sh.et South INkknE, WA 98033 PH: (425) 827 -2014 1 -800 -943 -8408 FWI (425) 827 -5043 Kirkland . Ssdlfla . Faders, Way • Portland ....Po«.new.eem R.S. PEDERSEN P.O. BOX 1518 MARYSVILLE, WA 98270 REFERENCE DEEINIl1p FEND BOGC SURV. CPU INE DATUM DATE DEC. 20, 2004 SCALE 1 " -20' FOSTER RIDGE SHORT PLAT TREE REPLACEMENT PLAN NUMBER JOB 443 DNS HOE 443 -1REE SiEET L2 or 2 DESIGNED HPP DRAWN HPP CHECKED PDC 221 - .. ENO IE■209.88 qtRt.RGAR at. 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'0 0 wetiand edcle/, r : 1 St \ • • • • • \ • • RECEIVED DEC 21 NMI COMMUNITY DEVELOPMENT GRAPHIC SCALE 20 0 10 20 40 MO In MI •11111111 ( tN rest ) t inch a 20 feet Call before you Dig. 1 -800- 424 -5555 UNDERGROUND SERVICE (USA) 16WIR 08/28/06 1 I 01/18 /06 sYM REVISED PER OWNER RENEW COMMENTS REVISION DATE FPH BY 7/03 PDC APIA) Engineering Planning Surveying Penhallegon Associates• Consulting Engineers, Inc. 750 Sixth Street South Kirkland, WA 98033 ww .poceengre.com PH: (425) 827 -2014 1 -800- 945 -8408 FAX: (425) 527 -5043 Kirkland . Seattle . Federal Way Portland VAL VUE SEWER DISTRICT 14816 MILITARY ROAD SOUTH SEATTLE WE, 98169 REFERENCE INFORMATION FIELD BOOK: SURV. CPU FILE: DATUM: DATE JULY 2003 SCALE 1 " -20' FOSTER RIDGE SHORT PLAT SEWER PLAN JOB NUMBER 03053.00 DWG NO. P6673ss.DWG SHEET C1 cif . 1 -4- TAPPING TEE 1 -4' GATE VALVE, (FLxFL) 1 -4'x8' DI REDUCER, (FLxMJ) 1 -CONC THRUST BLOCK i X 226.87 50 IF 8' DI, CL 52 RJ PIPE ir„ _ °aa "'z5a°"-t�m - erev amsm 'Ya a 1 -8 0cFLY - , ti 1 � L 8' CATE V FLx - \ \ 30,E - _ 6 I F 8 R6 'r CL -52 - 52- SPOOF (RJJ � ASSEMBLY- R OW 8 _ - r ACt itJ BE-MEGAUIGS (TYR) - - _ - - - - - -- -- -: LE WA 224. � .� SS, 218.2* 2 -8' 45' BENDS, R�xFt� -� 0* 1 1 t 1 i 4502 13908 SINGLE WATER METER (TYP.) 9 MCM DOUBLE WATER t -� "' --� METER (TYP.) 4509 4 rc zs'a�soe • 4520 N FS I 4524 1 -8' 45' BEND, (RJxRJ) Ta ,zs wm ccc9 area ea?a 71 E1 WA ,�lssn 0 „_.._ — _ -___7 LF_87 X, RJ 8"x6 1EEst(IPaL T=8" GAAE (RJxRJ) 1-8' �G CVAI4 -Fl SHALL B V( J E,I ). j }S HYDRANT AS�SEAIBLJ ' , - . -- - - _ _ 11 LF 87, CL 52 SPOOL; (RJ CaD' RJ S MEG7I� OS-(TYP. 4 4525 RJ PIPE 14. 45' BEND, (RJ crorioNws \ \ \ \ \ \ 22.0' WA EASEM ENT \ \ \ TO INCLUDE AU. OF DRIVEWAY (TYP.) \ I.E. SS 205.53 TOP WA 201.0* STRUCT -SS- .CROSSING ACCORDANCE WTI THE D.O.E. CRITERIA FOR SEWAGE WORKS CONSTRUCTION 4526 I.E. WA 212.3* TOP SS 209.88 24 IF 8" DI, CL 52 RJ PIPE WATER EASEMENT I.E. WA 200.8± 22.5' WATER EASEMENT TO INCLUDE ALL OF DRIVEWAY (TYP.) �u ire �E x'l x. ON \ \ N — / -1 4' R STRAINED COUPLIN - 1 -4" DI, CL 52 SPOOL (PExPE) LENGTH AS REQUIRED 1 I1- 4 - IGATE VALVE (RJxRJ) /1 - 8'xx4' REDUCER. (PExRJ) t i \ \ \ \ \� \ \ \ \ \ \ \ \\ \ \\ N, \ \ \ \ 30.0' N 1' \ • VACATED \\ \ \ \ \\ \\ BROW \ \ N \ g \ \ \ \ \ \ \ \ \' `\ ` • \ \ \ _ - IN \ • .� \ \,` {? \ \ \ • <,\ \ \ t. \ \ '\ N e \ -- ___ OTHETtS TO RE ON LO torwATER - TO \A N. \ \ 'N. \.\ �\\ I '"'Y. \- - \ 1 I N \ N.— 1 i \ -- . ;. �.. — N\ 2 _ _' r; ,. n 5f e k\a`'` VER,OVER WATER a ._ tt- GRAPHIC SCALE 20 0 10 20 MI NM - ( IN FEET ) 1 Inch = 20 feet U 21 2004 ' I(14EOPM 40 Call before you DZg. 1- 800 - 424 -5555 UNDERGROUND SERNCE (USA) EXPIRE! 08/46/09 I xxPAO 0, /Ia /o8 I DESIGNED HPP DRAWN HPP CHECKED PDC SnA REVISED PER OWNER RENEW COMMENTS REVISION 7/03 DATE BY PDC APT/ Engineering Planning Surveying Penhallegon Associates Consulting Engineers, Inc. 750 Sixth Street South Kirkland, WA 98033 www.poceengro.corn PH: (425) 827 -2014 1 -800- 945 -8408 FAX, (425) 827 -5043 Kirkland . Seattle • Federal Way Portland KING COUNTY WATER DISTRICT # 125 2847 S. 150TH STREET, PO BOX 68147 SEATTLE, WA 98168 REFERENCE INFORMATION FIELD BOOK: SURV. CPU FILE DATUM: DATE JULY 2003 SCALE 1 " - 20' FOSTER RIDGE SHORT PLAT WATER PLAN JOB NUMBER 03107.00 DWG NQP8673wo.dwg [WATER) SHEET Cl OK