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18-104436 (2)CITY OF low 0 t-eaeral Afty Centered on Opportunity Ed McManamna Rice Fergus Miller, LLC 262 4th St Bremerton, WA 98370 mfmimw RE: Permit #18-104436-UP; PROCESS 11 — SITE PLAN APPROVAL South Ving Fire & Rescue - Station, 35100 Pacific Hwy S, Federal W] F7, 33325 8th Avenue South Federal Way, WA 98003-6325 (253) 835-7000 www.cityoffederalway.com Jim Ferrell, Mayor The City of Federal Way's Community Development Department has completed the administrative review for the proposed remodel and expansion of the South King Fire and Rescue Station located at 3 5 100 Pacific Hwy South. The Process Il land use application submitted on September 19, 2018, is v*T6 guideline criteria set forth in Federal Way Revised Code (FVvRC) 19.60.05 0 as found in the enclosed Exhibit A - Findings for Process 11 Site Plan Approval. The remainder of this letter outlines the land use review process required for this proposal, and a summary of appeal procedures. REQUIRED REVIEW PROCESS The proposed improvements to the existing developed site are subject to Process H Site Plan Review as fv-t��_ FVX_'C_L9_J_5_._0_W2_ Substantial Improvements. The proposed addition is categorically exempt from an environmental threshold determination pursuant to State Environmental Policy Act Rules 197-11-800(2)(e). APPROVAL DURATION Unless modified or appealed, the Process 11 decision is valid for five years from the date of issuance of the decision. Time extensions to the decision may be requested prior to the lapse of approval following Ay§ h- F leted within the five-year time period or the land use decision becomes void. APPEALS The effective date of this decision is November 2, 2018. Pursuant to FWRC 19.60.080, any person who received notice of this administrative decision may appeal the decision to the Federal Way Hearing Examiner by November 16, 2018. A written appeal must be delivered to the Community Development Department with the established fee. The appeal letter must contain a clear reference to the matter being "I -#"- lli� fix-*rs i--ti Ai decisio-t. No work on the j2roj2osal mqy beiin until the end ot the appeal period. Aowever, as you are me only parLy of reuoru, you Ilia: Itl YUL U91 appeal this decision by submitting a written request to do so to the department (this action allows the building permits to be issued prior to the end of the appeal period). CLOSING This land use decision does not waive compliance with future City of Federal Way codes, policies, and standards relating to this development. This Process H approval does not constitute approval of a buildi or sign permit. If you have any questions regarding this decision, please contact Natalie Kamieniecki, Associate Planner, at 253-83 5-263 8, or Natalie.kamieniecki@cityoffederalway.com. I Sincerely, rian Davis Community Development Director enc: Approved Site Plan and Elevations Exhibit A 'Findings for Process II Site Plan Review Approval' c; Natalie Kamieniecki, Associate Planner Kevin Peterson, Senior Engineering Plans Reviewer Sarady Long, Senior Transportation Planning Engineer Scott Sproul, Building Official, via email Chris Cahan, South King Fire & Rescue, via email Dave Maftin, South King Fire & Rescue, via email Brian Asbury, Lakehaven Utility District, via email 18-1 04436-00-UP Doc, I D, 78347 FiLE Findings for Process II Site Plan Approval King, Fire and Rescue Station #60 Facility Improvements File #18-104436-UP The Director of Community Development hereby makes the following findings pursuant to content requirements of the Process Il written decision as set forth in Federal Way Revised Code (FWRC) 19.60.0711 ,rMTWhftiAwWm #`• %yale-.eq vlicant receivel? September 19, 2018. 1 Proposal — The applicant proposes interior improvement to Building I (fleet maintenance) and Building 2 (storage), plus reroofing, new doors, and a 1,900 sq. ft. single story addition to Building 2. 2. Existing Conditions — The subject site is developed with 2 buildings on a 2.3-acre parcel located at 3 5 100 Pacific Highway S. The site is bordered by vacant commercial property to the north and • Concrete • property to the east. The site is bounded by Pacific Highway South to the west, and • 3 52 d Street to the south. Comprehensive • & Zoning Designation — The subject property is located within the Commercial Enterprise (CE) comprehensive plan and • designation. The proposed use • Government facilities, specifically municipal fire station development, is a permitted use within the CE zoning designation pursuant to FWRC 19.240.13 0. The r• expansion is less than 2,500 sq. ft. and is not subject to the requirements • FWRC 19.115.090 (1), to bring all non -conforming aspects • a development into conformance. Review Process — Government Facilities use types located in the CE zone are subject to development review procedures of Process 11 'Site Plan Review' set forth in FWRC Chapter 19.60. Process II review requires no public notice period and concludes with a written decision issued by of the Director's decision are conducted by the city's Hearing Examiner. 5. Environmental Review — The proposed improvements are exempt from environmental review. The new building will be less than 12,000 square feet; the improvements are consistent with the State Environmental Policy Act (SEPA) definition of "minor new construction" as set forth in WAC 197- 11-800(2)(e). 6. Height — The height of the development is 27 feet 6 inches above average building. The height of the structure is below the 40-foot height maximum. 7. Setbacks — The required yard for the proposed use is 20 feet front, 15 feet side, and 15 feet rear setbacks. The proposed development meets all required setbacks. Findings for Process II Site Plan Approval King, Fire and Rescue Station #60 Facility Improvements File #18-104436-UP The Director of Community Development hereby makes the following findings pursuant to content requirements of the Process Il written decision as set forth in Federal Way Revised Code (FWRC) 19.60.0711 ,rMTWhftiAwWm #`• %yale-.eq vlicant receivel? September 19, 2018. 1 Proposal — The applicant proposes interior improvement to Building I (fleet maintenance) and Building 2 (storage), plus reroofing, new doors, and a 1,900 sq. ft. single story addition to Building 2. 2. Existing Conditions — The subject site is developed with 2 buildings on a 2.3-acre parcel located at 3 5 100 Pacific Highway S. The site is bordered by vacant commercial property to the north and • Concrete • property to the east. The site is bounded by Pacific Highway South to the west, and • 3 52 d Street to the south. Comprehensive • & Zoning Designation — The subject property is located within the Commercial Enterprise (CE) comprehensive plan and • designation. The proposed use • Government facilities, specifically municipal fire station development, is a permitted use within the CE zoning designation pursuant to FWRC 19.240.13 0. The r• expansion is less than 2,500 sq. ft. and is not subject to the requirements • FWRC 19.115.090 (1), to bring all non -conforming aspects • a development into conformance. Review Process — Government Facilities use types located in the CE zone are subject to development review procedures of Process 11 'Site Plan Review' set forth in FWRC Chapter 19.60. Process II review requires no public notice period and concludes with a written decision issued by of the Director's decision are conducted by the city's Hearing Examiner. 5. Environmental Review — The proposed improvements are exempt from environmental review. The new building will be less than 12,000 square feet; the improvements are consistent with the State Environmental Policy Act (SEPA) definition of "minor new construction" as set forth in WAC 197- 11-800(2)(e). 6. Height — The height of the development is 27 feet 6 inches above average building. The height of the structure is below the 40-foot height maximum. 7. Setbacks — The required yard for the proposed use is 20 feet front, 15 feet side, and 15 feet rear setbacks. The proposed development meets all required setbacks. 5-. Nonconforming Development — As proposed, the project is exempt from the requirements of FWRC 19.30.090 (1), to bring all nonconforming aspects of a development into conformance. Additions of less than 2,500 square feet are exempt. 1110. Parking — Pursuant to FWRC 19.240.130, parking requirements for government facilities is determined on a case -by -case basis. No more than ten employees will work at this site. The general public will not visit the site except on occasion where a small group would need to meet for fire department business. The existing 30 parking stalls on site are sufficient. Therefore, the new emergency vehicle maintenance bay does not trigger any additional parking requirements. 11. Community Design Guidelines — The proposed addition is exempt from bringing all non- conforming aspects of site design into compliance. The proposed fire station building addition complies with the provisions of FVTRC Chapter 19.115, "Community Design Guidelines" that are applicable to the development as detailed below. Buildingfaqade n7odulation - Methods of articulation are incorporated in the overall architectural design. Window openings, parapets, material variations are used to articulate/screen blank walls. Ins WMMMOMMOM6171 USTAWA •" 00.014 and/or decorative grid pattern. 12. Transportation — Based on the submitted materials for demolition of the existing 1,0 18 square -foot canopy and 1,984 square feet of additional shop space� theJnstitute of Transportation Exigmem (ITE) Trip Generation — 81' Edition, land use code 942 (AutOmObile CAM Cel�i� and �ttdnoed-mte, assumption for the proposed and existing uses, the proposed ptojett is estimated to gbildtInd ub hew weekday PM peak hour trips. 13. Stormwater — The project was reviewed by the Development Services Division of the Public Worl Department for compliance with the stormwater requirements of the 2016 King County Surface Water Design Manual (KCSWDM), and City addendum to the manual, and has been deemed complete. 14. Fire Protection — Please see enclosed memo from South King Fire & Rescue. These comments are informational and need to be addressed at the time of building permit review. 15. Building Permit — Prior to building construction, the applicant must obtain building permit approval. This Use Process 11 site plan approval decision does not grant building permit approval. 16. Decision Criteria — Staff finds the proposal is consistent with applicable site plan approval criteria required for Process 11 as set forth in FWRC 19.60,050. The proposal is consistent with the city's comprehensive plan; applicable provisions of FWRC Title 19 Zoning and Development Code; public health, safety, and welfare; and streets and utilities in the area are adequate to serve the anticipated demand from the proposal. The proposal is consistent with Community Design Guideline decisional criteria set forth in FVFRC Chapter 19.115. Finding I s "I fOTProcess 11 Site Plan Approval Page 2 South King Fire and Rescue Station #60 Facility Improvements File #1 8-104436-UP/Doc. I.D. 78396 IV Mimi approval, and offier applicame My requiremems. 1110�ic I.I.Iff-114S FrJM#1TfdTX1-0--VrfCff Y E, City of Federal Way codes, policies, and standards relating to this development. Prepared by: *Natalie Kamieniecki, Associate Planner Date: October 31, 2018 *Please note, there has been a change in the project planner; Dave Van De Weghe is no longer with the City. Findings for Process II Site Plan Approval Page 3 South King Fire and Rescue Station #60 Facility Improvements File # 18- 10443 6-UP/Doc. I.D. 78396 RECEIVED CrTY OF FEC)ERAL WAy COMMUNITY DEVELOMEN r 11ASTER LAND USE APPLICATION 33325 81h Avenue South Federal Way, WA 98003-6325 253-835-2607; Fax 253-835-2609 LICATIONo(s). qa) U0 I Date 9/19/18 APPN �Q Project Name South King Fire and Rescue Facility Improvements - Fire Station 60 Property Address/Location 3510OPacific Highway South, Federal Way, WA 980% Parcel Number(s) Project Description r as a e eas en o exis ing ui I LC an underground fire pump test vault. Type of Permit Required Annexation Binding Site Plan Boundary Line Adjustment Comp Plan/Rezone Land Surface Modification Lot Line Elimination Preapplication Conference Process I (Director's Approval) X Process 11 (Site Plan Review) Process III (Project Approval) Process IV (Hearing Examiner's Decision) Process V (Quasi -Judicial Rezone) Process VI SEPA w/Project SEPA Only Shoreline: Variance/Conditional Use Short Subdivision Subdivision Variance: Commercial/Residential Required Information CE oning Designation Commercial �•djj Comprehensive Plan Designation Unassessed if , alue of Existing Improvements $2.3 !!1 -Value of Proposed Improvements International Building Code (IBC): S1 and B Fu ly-Sprinklered Occupancy Type •EUI!y_Spdkjei6A onstruction Typi Applicant Name: King County Fire District #39 - South King Fire and Rescue Address: 31617 1st Avenue South City/State: Federal Way, WA Zip: 98003 Phone: 253-839-6234 Fax: 253-259-7204 Email: dave.mataftin@southkingfire.org Signature: Agent (if different than Applicant) Name: Rice Fergus Miller Inc., Attn: Ed McManamna Address: 275 5th Street, Suite 100 City/State: Bremerton, WA Zip: 98337 Phone: 360-377-8773 Fax: Email: emgnamna@rfmarch.com rITT"s Name: King County Fire District #39 - South King Fire and Rescue Address: 31617 1 st Avenue South City/State: Federal Way, WA Zip: 98003 Phone.' 253-839-6234 Fax: -259-7204 Email: v mataft' n fire. rg Signatur Bulletin #003 —January 1, 2011 Page 1 of 1 k:\Handouts\Master Land Use Application Ricpk v, ARC, TECTURE MTERIORS PLANNING VI7LAB September 19, 2018 275 Fifth Street, Suite 100 Bremerton, WA 98337 (360) 377-8773 rfmarch.com C11Y 01 F_EpEi y t*MMUNJTYDWOARW Mr. Riley Bushnell, Planning Intern City of Federal Way 33325 8th Avenue S. Federal Way, WA 98003-6325 Re: South King Fire and Rescue Facility Improvements Station 60 Vehicle Maintenance Dear Mr. Bushnell, With this narrative and the accompanying drawings and special studies, we wish to apply for a Use Process II site plan review for the South King Fire and Rescue Facility Improvements, Station 60 Vehicle Maintenance project, which is scheduled for construction in early 2019. Project Description: The project site contains the following elements: Building 1, the larger of the two facilities, will remain as an existing storage and office use. No substantial work or modifications are being performed or proposed as part of this application. Building 2, an existing, 5,964 sf concrete vehicle storage and maintenance facility will maintain its current usage and will be renovated and expanded with a new addition to a total of approximately 7,137 sf. The addition will include support spaces and a new vehicle maintenance bay designed to service the fire district's ladder trucks. Exterior work to the building will include new roofing and painting. Sitework is limited to stormwater improvements as required to support the new addition, and an 18,000 gal., below -grade fire engine test vault. This underground concrete vault is designed to allow the fire district to test and certify the water pumps on their fire engines and apparatus. The site is fenced and secured and typically not open to the public. Community Design Guidelines Compliance: In accordance with FWRC 19.115 and as noted in the Pre -Application Summary Letter (August 28, 2017), the project is subject to Community Design Guidelines. Per 19.115.050 (1) (d) The new addition to Building 2 Vehicle Maintenance is designed to provide a compatible appearance with the existing building, provide a family resemblance to Building 1, and fit in well to the existing neighborhood context. Per 19.115.060 (2) The new addition to Building 2 utilizes two strategies for compliance: Facade Modulation (a), and a canopy/trellis element (c) to provide fagade modulation at the east wall of the new addition. le SKF&R Station 60 Use II Narrative Page 2 of 2 Per 19.155.060 (3) (a) and (b) Windows are included on the east wall to provide light to the interior as well as architectural interest. Metal siding is used at the smaller, lower -scaled portion of the addition between the existing building and the higher, new maintenance bay to provide an opportunity for additional color and texture. Colors: While final colors have not been selected at this time, we anticipate that all colors and finishes will be tasteful, muted, and appropriate to the existing conditions and compatible with the surrounding neighborhood. Light gray and beige colors are anticipated for the body of the vehicle maintenance facility and its addition. Finishes: Both existing buildings are tilt -up concrete. For the vehicle maintenance building, we have selected a stucco system with a smooth finish to provide a "family resemblance" to the existing buildings. We are also providing a metal -siding -clad portion of building between the existing vehicle maintenance facility and the new ladder truck bay to provide a graceful transition between new and old portions of the building and to help break up the mass of the building. Thank you for your review of our project and documentation. Please feel free to contact me with any questions, comments, or concerns. Sincerel Edward A. McManamna, Architect Rice Fergus Miller, Inc. Cc: DC Dave Mataftin, South King Fire & Rescue CITY • FEDERAL WAY COMMUNITY DEVELOPMENT DEPARTMENT 1 DATE: October 2, 2018 TO: Cole Elliott, Development Services Manager Scott Sproul, Building official Rick Perez, City Traffic Engineer Brian Asbury, Lakehaven Water & Sewer District Chris Cahan, South King Fire & Rescue FROM: FOR DRC MTG. ON: Please email any comments ................ ....................... ........ FILE NUMBER(s): 18-104436-00-UP RELATED FILE NOS.: 17-103430-00-PC PROJECT NAME: SOUTH KING FIRE & RESCUE - STATION 60 UPGRADES PROJECT ADDRESS: 35100 PACIFIC HWY S ZONING DISTRICT: CE PROJECT DESCRIPTION: Proposal to include interior improvements to Building 1 (Fleet Maintenance) and Building 2 (Storage), plus re -roofing, new doors, and a 1900 sq. ft. addition to Building 2. LAND USE PER14ITS: UP Process II PROJECT CONTACT: DAVE MATAFTIN . SOUTH KING FIRE AND RESCUE XATERIALS SUB14ITTED: Master Land Use Application Project Narrative Technical Information Report (TIR) Land Use Application Plan Set Materials: • Cover Sheet • Temporary Erosion Control and Demolition Plan • Grading, Storm and Utility Plan • Architectural Site Plan and Site Section • Build 2 - Exterior Elevations F" 1 1 for 11kice Fergus Miller, Architects RECEIVED 2018 Reid iddleton ,I I - - 1 6 , Prepared for Rice Fergus Miller, Architects July 2018 The engineering material and data contained in this report were prepared under the supervision and direction of the undersigned, whose seal as a registered professional engineer is affixed below. mmo�.., r South King Fire & Rescue July 2018 SKFR Facility improve m ents-Station 60 Technical Information Report Table of Contents SECTION PROJECT OVERVIEW INTRODUCTION...........................................................................................................................................................1 PROJECTLOCATION....................................................................................................................................................1 EXISTINGComomoms ...............................................................................................................................................1 DEVELOPEDCoimmmrs ........................................................................................................................................1 SECTION 2. CONDITIONS AND REQUIREMENTS SUMMARY .: ......... .......... .......... ........ ............... CORE REQUIREMENT 1: DISCHARGE AT THE NATURAL LOCATION................................................................................9 COREQUI MENT2: OFF-sITEANALYsm........ ......... ................... :r» ....,.:, ......,:. ........ .......,. 9 CO QUI MENT3: FLoWCoNTROLFACILITIEs....... .......:..... ..... .. ......... ......... .._..... ..n....:..,,.,,;,....9 CO QUI MENT 4: CoNVEYANCE SYSTEM ...... ......... ......... .......:.. 9 CO QUI MENT 5: CONSTRUCTION STO ATER POLLUTION VENTION... .....,,. 9 CORE REQUI MENT6: MANTEmNcE AND OPERATIONS . ....... .: ......... ........ .......aW a....„.. .......,_ ...........9 CORE REQUIREMENT7: FINANCIALGUARANTEESANDLmBILITY....................................... ......... ......... ..............9 CORE REQUIREMENT 8: WATER QUALITY.................................................................................................................10 CORE REQUIREMENT 9: FLOW CONTROL BMPs.......................................................................................................10 SPECIAL REQUIREMENT 1: OTHER ADOPTED AREA -SPECIFIC REQUIREMENTS...........................................................10 SPECL4L REQUIREMENT 2: DELINEATION OF 100-YEAR FLOODPLAIN........................................................................10 SPECIAL REQUIREMENT 3: FLOOD PROTECTIONFACILITIES......................................................................................10 SPECIAL REQUIREMENT 4: SOURCE CONTROL..........................................................................................................10 SPEC QUI ENT5: OIL CONTROL, ..,..a ... ......... ......... 10 1 OFF -SITE SECTION 4. FLOW CONTROL, LOW IMPACT DEVELOPMENT (LED), AND WATER QUALITY ANALYSISAND DESIGN.......................................................................................................................................12 PARTA: EXISTING HYDROLOGY................................................................................................................................12 PART B: DEVELOPED SITE HYDROLOGY...................................................................................................................12 PART C.' PERT"OJUD:NCB"STANDARDS........................................................................................................................12 PARTD: FLOW CONTROL SYSTEMS...........................................................................................................................12 PARTE: WATER QUALITYSYSTEMS..........................................................................................................................13 SECTION 5. CONVEYANCE SYSTEM ANALYSIS AND DESIGN................................................................14 SECTION 6. SPECIAL REPORTS AND STUDIES .............................................................................................15 SECTION7. OTHER PERMITS ............................................................................................................................16 SECTION 8. CSWPP ANALYSIS AND DESIGN................................................................................................17 PARTA: ESCMEAsUREs..........................................................................................................................................17 PARTB: SWPPS MEASURES.....................................................................................................................................18 SECTION 9. BOND QUANTITIES, FACILITY SUMMARIES, AND DECLARATION OF COVENANT.19 SECTION 10. OPERATION AND MAINTENANCE MANUAL .......................................................... .........20 APPENDIXDRAINAGE BASIN ' APPENDIX1CALCULATIONS APPENDIX1SURVEY APPENDIX 1 BOND QUANTITY O South King Fire & Rescue July 0 SKFR Facility Improvements-Station60 E:II 1�11" W= FIGURE1. T. WORKSHEET . .............................................................................................................................. 3 FIGURE2. LOCATION MAP . ................................................................................................................................. 8 South King Fire & Rescue July 2018 SKFR Facility Improvements -Station 60 Technical Information Report SECTION 1. PROJECT OVERVIEW This report details the stormwater management for the South King Fire & Rescue (SKFR) Station 60 Facility hnprovements project. SKFR recently purchased the property as their maintenance and operation center. The proposed project will expand the existing maintenance building on the site. The site improvements include underground utility piping, excavation, and construction of a new pumping pit tank. Flow control Best Management Practices (BMPs) will be used to control stormwater runoff from the new building addition. NEMMU= The • ect site is located at the northeast • of the • of P acific Highway S • • S 151" SftdtJn Federal Way, • (ste Pigum 2, Location Map). Tk$ubject [�roperty is approximately 2.35 acres. The project affects less than I acre of land. The projec! site is located adjacent to the existing maintenance building in the southeast comer • the [property. .1; d-w-rowiding areas Of Davementan� west tiy Fame Aignway So •' Tne sovin uya-�x�j��FVT-,77r* tit, IS an the private road. ni Ax�&- iminasim.-g Ht- * f Iri 7rvq, iig.� �nanc e �b& ding and extending to the east property line across one of the access points into the property. The building addition area is composed of a concrete pad under an existing canopy, with gravel surfacing to the east and south and pavement to the north. The ground surfacing slopes east and south toward an existing catch basin near the south property line. The remaining gravel surfacing to the east property line slopes to the west and south. Stormwater travels as sheet flow to the south along the access driveway out of the site and discharges to a roadside catch basin. According to the USDA Web Soil Survey, the site soils are Urban Land, which is mostly composed of fill material and does not have a hydrologic soil classification. The Web Soil Survey documentation is provided in Appendix C. These soils have a slight to moderate erosion h q,A• An existing detention tank in the northwest comer of the site collects runoff from the western half of the property. Site development will primarily take place at and adjacent to the existing maintenance building. WAmik, to accommodate H 1TM§ji&z2jL4 11 R; go 5161 Eli I I Ito I I$ om at.] [1) 1 NMI [III I Lei I r4l E I I Ito K7.j gi I IF M, South King Fire & Rescue July 2018 SYCFR Facility Improvements -Station 60 Technical Information Report The project is subject to a Full Drainage Review, and Flow Control BMPs will be used to control stormwater from the new impervious areas associated with the building expansion and utility work. According to Section 1.2.9.2, Individual Lot BMP Requirements, flow control BMPs for large lots are required for the project site. The BMPs proposed for the project's targeted impervious surfacing include bioretention for the building addition roof area. '.:• from the roof will be collected and conveyed by downspouts and storm pipe to a new bioretention cell located in the southeast comer of the property. - 1 6 South King Fire & Rescue July 2018 SKFR Facility Improvements -Station 60 -2- Technical Information Report I KING COUNTY )ASHINGTON, SURFACE WATER DESI )MANUAL TECHNICAL INFORMATION REPORT (TIR) WORKSHEET Project Owner South King Fire & Rescue Phone 20-927-311, Address 31617 laLAyenue So 2 31 u 5 Federal Way, WA 98003 Project Engineer Mark Qpy' `e Company Reid Middl .Aon Inc. LPhone 425-741-3800 LJ Landuse (e.g.,Subdivision / Short Subd. / UPD) U2 Building (e.g.,M/F / Commercial / SFR) Ll Clearing and Grading LJ Right -of -Way Use LJ Other Project Name $KFR Eadli V IMDrovementq DPER Permit # Location Township 21 N Range 04E Section 20 Site Address 35100 Pacific HWY S Federal Way, WA 98003 LJ DFW HPA J COE 404 J DOE Dam Safety L3 FEMA Floodplain Ll COE Wetlands Ll Other LJ Shoreline Management 0 Structural Rockery/Vault/ J ESA Section 7 Technical Information Report Site Improvement Plan (Engr. Plans) 0 Full LA Type of Drainage Review U Targeted Plan Type (check L3 Full (check one): Ll Simplified one): J Modified LJ Large Project Simplified Date (include revision L3 Directed Date (include revision 5/24/2018 dates): 5/24/201-E- dates): Date of Final: Date of Final: Type (circle one): Standard / Experimental / Blanket Description: (include conditions in TIR Section 2) NIA Approved Adjustment No. Date of Approval: 2016 Surface Water Design Manual 1 4/24/2016 KING COt Y, WASHINGTON, SURFACE WATER SIGN MANUAL TECHNICAL INFORMATION REPORT (TIR) WORKSHEET Monitoring Required: Yes Describe: Start Date: Completion Date: Re: KCSWDM Adjustment No. Community Plan: Special District Overlays: N/A Drainage Basin: Hylebos Creek Stormwater Requirements: I/A 0 River/Stream Steep Slope _ Ll Lake Erosion Hazard U Wetlands Ll Landslide Hazard J Closed Depression U Coal Mine Hazard U Floodplain Seismic Hazard LJ Other Habitat Protection None Soil Type —U rb 3nfan -d-Ill J High Groundwater Table (within 5 feet U Other U Additional Sheets Attached At Erosion Potential ederat LJ Sole Source Aquifer Ll Seeps/Springs 2016 Surface Water Design Manual 4/24/2016 2 KING COUNT-Y / JASHINGTON, SURFACE WATER DESMANUAL TECHNICAL INFORMATION REPORT (TIR) WORKSHEET REFERENCE LIMITATION / SITE CONSTRAINT Core 2 — Offsite Analysis Sensitive/Critical Areas SEPA LID Infeasibility J Other Additional Sheets Attached Part 12 TIR SUMMARY SHEET (provide one TIR Summary Sheet per Threshold Discharge Area) Threshold Discharge Area: (name or description) Existing on -site pavemenVgravel areas Core Requirements (all 8 apply)* Discharge at Natural Location Number of Natural Discharge Locations: 1 Offsite Analysis Level: B / 2 / 3 dated: Flow Control (include facility Level: I / 2 / 3 or Exemption Number Basic summary sheet) Flow Control BMPs Bioretention Conveyance System Spill containment located at: Erosion and Sediment Control CSWPP/CESCL/ESC Site Supervisor: TBQ Construction Stormwater Contact Phone: Pollution Prevention After Hours Phone: Maintenance and Operation Responsibility (circle one): Public If Private, Maintenance Log Required: Yes / No Financial Guarantees and Provided: Yes Liability Water Quality (include facility Type (circle one): Basic / Sens. Lake Enhanced Basic Bog summary sheet) or Exemption No. Landscape Management Plan: Yes / No Special Requirements (as applicable): Area Specific Drainage Type: CDA/SDO/MDP/BP/LMP/Shared Fac./None Requirements Name: Flood plai n/Floodway Delineation Type (circle one): Major / Minor / Exemption / None 1 00-year Base Flood Elevation (or range): Datum: Flood Protection Facilities Describe: 2016 Surface Water Design Manual 3 4/24/2016 KING COI Y, WASHINGTON, SURFACE WATER SIGN MANUAL Part 12 TIR SUMMARY SHEET (provide one TIR Summary Sheet per Threshold Discharge Area) Source Control Describe land use: Fire Station Maintenance (commercial / industrial land use) Describe any structural controls: oil/water separator Oil Control High -use Site: Yes / E9 Treatment BMP: Maintenance Agreement: Yes No with whom? Other Drainage Structures Describe: MINIMUM ESC REQUIREMENTS MINIMUM ESC REQUIREMENTS DURING CONSTRUCTION AFTER CONSTRUCTION J Clearing Limits LA Stabilize exposed surfaces J Cover Measures Z1 Remove and restore Temporary ESC Facilities Perimeter Protection L@ Clean and remove all silt and debris, ensure Traffic Area Stabilization operation of Permanent Facilities, restore U Sediment Retention operation of Flow Control BMP Facilities as J Surface Water Collection necessary Ll Flag limits of SAO and open space preservation L] Dewatering Control areas LA Dust Control D Other Ll Flow Control Protection of Flow Control BMP Facilities (existing and proposed) Maintain BMPs / Manage Project Part 14 STORMWATER FACILITY DESCRIPTIONS (Note: Include Facility Summary and Sketch) Flow Control Type/Description Water Quality Type/Description LJ Detention U Vegetated Flowpath LJ Infiltration U Wetpool LI Regional Facility U Filtration Ll Shared Facility Ll Oil Control 0 Flow Control BMPs Bioretention L3 Spill Control U Other U Flow Control BMPs LJ Other 2016 Surface Water Design Manual 4/24/2016 4 KING COUNTY )ASHINGTON, SURFACE WATER DES,'—) MANUAL TECHNICAL INFORMATION REPORT (TIR) WORKSHEET Part 15 EASEMENTS/TRACTS Part 16 STRUCTURAL ANALYSIS J Drainage Easement J Cast in Place Vault J Covenant LJ Retaining Wall L3 Native Growth Protection Covenant 0 Rockery > 4' High U Tract 0 Structural on Steep Slope Ll Other U Other 1, or a civil engineer under my supervision, have visited the site. Actual site conditions as observed were incorporated into this worksheet and the attached Technical Information Report. To the best of my knowledge the information provided here is accurate. signed/Date 2016 Surface Water Design Manual 4/24/2016 Figure 2. Location Map. South King Fire & Rescue July 2018 SKFR Facility Improvements -Station 60 -8- Technical Information Report I 'I This section summarizes King County's core and s-pecial requirements from the 2016 King County Surface Water Design Manual (KCSVVDM) and City of Federal Way Addendum to the KCSWDM. Core Requirement 1: Discharge at the Natural Location The project site does not contain a natural channel or discharge location. Site runoff from the western half of the property is collected and conveyed by catch basins and storm pipe to an existing detention tank in the northwest comer of the property. Discharge from the tank releases to a media filtration facility before discharging to the storm drainage system along Pacific Highway South. Stormwater from the eastern half of the site is collected and conveyed by catch basins and storm pipe that eventually discharge to the existing detention tank. Storrnwater from the building addition will be directed to the bioretention cell, and overflow will travel by overland flow to one of the existing catch basins within the property. I I'll '' I r 4 Highway South. The storm pipe system continues south along Pacific Highway and eventually discharges to the City's regional fiow control facility. Section 3, Offsite Analysis, provides 1-irther detail. Core Requirement 3: Flow Control Facilities This project is exempt from this requirement because the project generates less than 5,000 square feet of new plus replaced impervious surface. Core Requirement 4: Conveyance System All new stormwater conveyance systems have been designed to convey the 25-year developed storm. Core Requirement 5: Construction Stormwater Pollution Prevention beCtlMent UOMMI aII(I OLU111171MV1 MOT 11=1 for this project. The CSWPP is summarized in Section 8 of this report. Core Requirement 6: Maintenance and Operations Lqaintenance guidelines for the bioretention cells can be found in Section 10 of this report-. Core Requirement 7: Financial Guarantees and Liability The Bond Quantity worksheet is provided in Appendix D of this report. South King Fire & Rescue July 2018 SKFR Facility Improvements -Station 60 -9- Technical Information Report Core Requirement 8: Water Quality below the 5,000-square-foot threshold for the water quality requirement. the new building addition. Special Requirement]: Other Adopted Area -Specific Requirements Other adopted area -specific requirements are not applicable to this project. Special Requirement 2: Delineation of 100-Year Floodplain yr*5fii-%4 is -_row&#4R0§i T_Fff1x1)J project. The project does not contain and is not adjacent to a known flood protection facility. The BMP worksheet describes ongoing and future source control measures that comply with t1'Fr11 King County Storm Water Pollution Control Manual. The following BMPs are specific to the SKFR Facility Improvements — Station 60 project: I A-27: The construction site for the project will have a Temporary Erosion and Sediment Control Plan and details that comply with the KCSWDM. This plan will include perimeter protection and covering of exposed soils. Nonstructural Source Control Measures: A-15: Pressure washing of the building, rooftop, and large objects will comply with the appropriate BMPs. A-29: During project construction, site toxic substances will not be dumped on thel ground. Ground or drop cloths will be used, and the water used to clean water-bas paints from tools will be disposed of in the sanitary sewer. The Proposed develODment does not me ' . . C .. 11. 1- kfralr South King Fire & Rescue July 201. SKFR Facility Improvements -Station 60 _10- Technical Information Report Stormwater from the property discharges to the storm pipe system in Pacific Highway 99 South from the detention tank and water quality unit in the northwest comer of the property. The road drainage system includes a 36-inch storm conveyance pipe that extends south along Pacific Highway for approximately 570 feet before turning east and continuing for another 200 feet and discharging into the existing City regional detention pond system. Stormwater ftbM the flow control ponds continues south approximately 500 f6* crosses under S 350 Streef�aud discharges to a drainage channel that continues through the Hybelos Wetlands for another 850 fb& before tea6biug S 359th SfreO, which is nearly a half mile from the project site. Pacific Highway is currently under construction that includes pavement widening and pedestrian walkways, but there were no signs of flooding or erosion observed along the drainage path. South King Fire & Rescue July 2018 SKFR Facility Improvements -Station 60 Technical Information Report I I i I I I i I I F%1121 I &Vff1JkZVAJ MV 'I The project area is composed of a building canopy over a concrete pad and adjacent gravel surfacing. Stormwater from the canopy is conveyed by downspouts and dispersed on the adjacent gravel surfacing toward an existing catch basin southeast of the canopy. Stormwater from the property is collected and conveyed by a series of catch basins and storm pipe to the adjacent street's storm conveyance system. The total replaced impervious area for the project is approximately 2,300 square feet, which consists of the 1,985-square-foot bung addition and excavation for concrete foundations. The majority of the roof runoff will be tight -lined by downspouts and storm pipes to a bioretention cell near the southeast comer of the property. A small portion of the roof addition that cannot be directed to the bioretention cell will be conveyed to the existing storm pipe system and partially infiltrated into the underlying soil with a perforated pipe connection within a gravel trench. I I III Ig As w I r"M 1 6 1 -1 Part C.- Performance Standards Table I summarizes flow control and conveyance performance standards for the project. Flow Control Convey System gfflff•� Oil Control Table 1 — Summary of Performance Standards Performance Standards em-pt. N/A R Im Bioretent on Cell. Perforated P�pe Connection. Manual N/1 Manual Section Manual Section INFIRTIMMI• W1 Manual Section 13A Bioretention, adhering to C2.6 of the KCSWDM, will provide runoff control from most of the building addition, with the following elements: South King Fire & Rescue July 2018 SKYR Facility Improvements -Station 60 -12- Technical Information Report EWU=M Inside UGA with rainfall regions greater than SeaTac 1.0 In Till soils Volume based on 0.8 inch of equivalent storage depth 9 inches of storage volume depth Bioretention Storage Volume needed = 2,300 SF x 0.067 ft = 153 CF Storage volume provided = 190 CF Perforated pipe connection, adhering to C2.11 of the KCSV;DM, will provide some stormwater infiltration to a small amount of roof runoff being conveyed to the existing drainage system on site. Part E: Water Quality Systems South King Fire & Rescue July 2018 SKFR Facility Improvements -Station 60 -13- Technical Information Report 1k, 11 11 ft I The project will provide new pipe systems to convey stormwater runoff from the building addition to a new bioretention cell and the existing storm pipe system. The system will be designed to convey the 25-year runoff peak flows for developed conditions. The system will also be ca lqr�;i Wrltd��- 11WMMV&if! z flooding problem. The Rational Method, using Manning's equation, was used to size the conveyance system for both the 25-year and 100-year storms. See Appendix B for conveyance calculations. South King Fire & Rescue July 2018 SYCFR Facility Improvements -Station 60 -14- Technical Information Report IN SECTION 6. SPECIAL REPORTS AND STUDIES Table 2 summarizes the special reports and studies conducted for the project. Table 2 — Summary of Special Reports and Studies Study/Report Date Conducted Appendix Floodplain delineation (1.3.2) N/A N/A Flood protection conformance (1.3.3) N/A N/A Critical areas analysis and delineation N/A N/A Geotechnical./Soils N/A N/A Groundwater N/A N/A Slope protection/stability N/A N/A Erosion and deposition N/A N/A Geology N/A N/A Hydrology N/A N/A Fluvial geomorphology N/A N/A Anadromous fisheries impacts N/A N/A Water Quality N/A N/A Structural design N/A N/A Structural fill N/A N/A South King Fire & Rescue July 2018 SKFR Facility Improvements -Station 60 -15- Technical Information Report SECTION 7. OTHER PERMITS Table 3 summarizes other permits required for the project. Table 3 — Summary of Other Permits Required lflRequired? Regulating Agency ins Iffilrr On -site Well a• oil QW of Fede "W NPDES Stormwater till a I r, re . . . . . . . . . . . . . . . . . . . . . . . . . . . . Forest Practices Class rV eneral 401 L _�Se(Lffous 10, ,404 o . . ............ South King Fire & Rescue July 2018 SKFR Facility Improvements -Station 60 -16- Technical Information Report SECTION 8. CSWPP ANALYSIS AND DESIGN Z 0 1 1 Stormwater Pollution Prevention and Sp171757710=es anu-VITOUTWILLut-1-M KCSVYTDM. Part A: ESC Measures Clearing Limits: Prior to any site clearing or grading, clearing limits shall be delineated with orange flagging or temporary chain link fence. 2. Cover Measures: Most of the project site is composed of gravel or pavement. Most disturbed areas shall be protected by an application of gravel. Any soil stockpiles will be covered with mulch and • sheeting. 3. Perimeter Protection: Filtration socks will be installed downstream of any soil disturbance. 4. Traffic Area Stabilization: A stabilized construction entrance will be installed at the easternmost entrance to prevent tracking of sediment onto the adjacent public road. 51, Sediment Retention: Filtration inserts for downstream catch basins will be used to prevent coarse sediment from entering the storm system. 6. Surface Water Collection: Construction runoff will be collected in existing catch basins equipped with filtration inserts. 7. Dewatering Control: Not necessary for the scope of the project. 8. Dust Control: Water will be used to prevent wind transport of dust from exposed soil surfaces onto adjacent surfaces. •• Control: Not applicabl-e: M Control '• See SWPPS Measures below. I L Protect Existing and Proposed Flow Control BMPs: Construction runoff will be prevented from entering the bioretention cell area. Any accumulated sediment shall be removed. 12. Maintain BMPs: Protection measures shall be monitored, maintained, and repaired during the construction activities. 13. Manage the Project: Personnel will be identified as the erosion control lead to coordinate site development activities relative to ESC concerns. South King Fire & Rescue July 201 1 8 SKFR Facility Improvements -Station 60 -17- Technical Information Report ....... The following is a discussion of each category of SWPPS measures anticipated and the pollution prevention BMPs to address it. The proposed SWPPS standards are provided in the King County Construction Stormwater Pollution Prevention Standards, Appendix D. Sawcutting and surfacing activities: BMP 2.2.3 will be used to minimize and eliminate slurry from entering the storm drainage system. Filtration inserts and filtration socks will be used to prevent construction runoff from entering the storm system. Materials delivery, storage, and containment: BMP D2.2.4 will be used to prevent pollutani from stored materials from entering the storm system. Additionally, filtration inserts and filtration socks will be used to prevent construction runoff from entering the storm system. Filtration and chemical treatment of construction water: Not applicable. This project does not require a NPDES construction permit. KI-eporting requirements and documentation availability for specific BMP processes: Not zpplicable. South King Fire & Rescue July 20 SY.FR Facility Improvements -Station 60 Technical Information Report SECTION 9. BOND QUANTITIES9 FACILITY SUMMAMES9 AND DECLARATION OF COVENANT A completed bond quantity worksheet is shown in Appendix D. A Declaration of Covenant for privately -maintained flow control BMPs is shown in Appendix E. The Declaration of Covenant and Utility Easement shall be recorded prior to occupancy. South King Fire & Rescue July 2018 SKFR Facility Improvements -Station 60 Technical Information Re11rt VM'7jfTjW=_?TO'1'1ff jLTu=T'e are reterencea In this section. South King Fire & Rescue July 2018 - SKFR Facility Improvements -Station 60 -20- Technical Information Report SECTION C.2 FLOW CONTROL BMPs INS In =,,'. 1 31110 K If a bioretention flow control BMP is proposed for a project, the following maintenance and operation instructions must be recorded as an attachment to the required declaration of covenant and grant of easement per Requirement 3 of Section C. 1.3.4 (p. C-23). The intent of these instructions is to explain to future property owners, the purpose of the BNT and how it must be maintained and operated. These instructions are intended to be a minimum; DPER may require additional instructions based on site - specific conditions. Also, as the County gains more experience with the maintenance and operation of these BMPs, future updates to the instructions will be posted on King County's Surface Water Design Manual website. A reproducible copy of the instructions, prepared for inclusion with the declaration of covenant, is located in Reference M. El TEXT OF INSTRUCTIONS Your property contains a stormwater management flow control BMP (best management practice) called "bioretention," which was installed to mitigate the stormwater quantity and quality impacts of some or all of the impervious or non-native pervious surfaces on your property. Bioretention includes vegetated closed depressions (ponds), swales, and/or planters that retain and filter stormwater from an area of impervious surface or non-native pervious surface. The soil in the bioretention area has been enhanced to encourage and support vigorous plant growth that serves to filter the water and sustain infiltration capacity. Depending on soil conditions, the bioretention area may have water in them throughout the wet season and may overflow during major storm events. T9 Mulch may be added and additional compost should be worked into the soil over time. Bioretention BMPs must be inspected annually for physical defects. After major storm events, the system should be checked to see that the overflow system is working properly. If erosion channels or bare spots are evident, they should be stabilized with soil, plant material, mulch, or landscape rock. A supplemental watering program may be needed the first year to ensure the long-term survival of the bioretention BMP. remove fallen leaves and debris as needed; 3) remove all noxious vegetation when discovered; 4) manually weed without herbicides or pesticides; 5) during drought conditions, use mulch to prevent excess solar damage and water loss. 4/24/2016 2016 Surface Water Design Manual — Appendix C C-82 C.2.6 BIORETENTION Common Name Scientific Name Spacing (on center) GWI�� Oycena occidentalis Velvetgrass Holcus mollis Shortawn foxtail i Alopecurus aequalis seed ��r foxtalilIIIIII seed Eleochatis spp. 0 oil -6 --] let 0 Sawbeak sedge Carex tipata Carex spp. Slender rush Juncus tenuis Oenanthe sarmento Watercress Rorippa nasturtium-aquaticum Small -fruited bulrush Scirpus microcarpus Runoff Source: 20-foot by 20-foot driveway Equivalent Storage Depth = 1.0 inches (0.083 feet) Bioretention Storage Volume Needed = 20 feet x 20 feet X 0.083 feet = 33 cubic feet Note that if the design soil percolation rate is 0.5 inches per hour, a pond ]-foot deep will take 24 hours to drain when filled. 2016 Surface Water Design Manual — Appendix C 4/24/2016 C-83 SECTION C.2 FLOW CONTROL BMPs ROCKED SPILLWAY, 2'Wx4'L (OR BEYOND BERM IF LONGER), OVERFLOW TO SUITABLE DISCHARGE AREA A, -�,, , BIORETENTION AIF GROUN PLAN VIEW A NTS A4 NOTES: • WATER STORAGE VOLUME PER SECTION C.2.6.1. • WATER SURFACE AREA AT OVERFLOW ELEVATION MUST BE EQUAL TO AT LEAST 5% OF THE IMPERVIOUS AREA TRIBUTARY TO THE FACILITY. • BIORETENTION THAT RECEIVES DRAINAGE FROM IMPERVIOUS AND/OR PERVIOUS AREA EXCEEDING THE THRESHOLDS IN SECTION C.2.6 MUST MEET "ADDITIONAL REQUIREMENTS FOR LARGE BIORETENTION FACILITIES" DESCRIBED IN THAT SECTION. TREES TREES 6" MIN FREEBOARD ABOVE OVERFLOW WS TO TOP OF BERM OR ADIACENT ROADWAY SHRUBS N TOP WIDTH GROUND COVER OVERFLOW SUITABLE SURFACE 6" MIN TO 12" MAX MAX SLOPE 3H:1V BELOW WATER DEPTH OVERFLOW WATER DISCHARGE AREA SURFACE ELEVATION (TYP.) BIORETENTION COMPACTED EARTH SOIL MIX PER BIORETENTION AREA z BERM (AS NEEDED) REFERENCE 1 1-C, MIN.18" DEPTH SECTION A -A NTS 4/24/2016 2016 Surface Water Design Manual — Appendix C C-84 C.2.6 BIORETENTION u+/%_no*om_\ --''- � IGID PIPE OUTLET LN VE u^ TOSTORM SYSTEM VEGETATED COMPACTED ~~ EARTH BERM, TOP WIDTH 2'M|N � ^^ IV" NOTES: ~ WATER STORAGE VOLUME PER SECTION C�01. m WATER SURFACE AREA ATOVERFLOW ELEVATION MUST 8EEQUAL TO ATLEAST 5Y6OFTHE IMPERVIOUS AREA TRIBUTARY TOTHE FACILITY. ° B|ORETENT!ONTHAT RECEIVES DRAINAGE FROM IMPERVIOUS AND/OR PERVIOUS AREA EXCEEDING THE THRESHOLDS |NSECTION C2OMUST MEET "ADDITIONAL REQUIREMENTS FOR LARGE B|DRETENT|DN FACILITIES" DESCRIBED |NTHAT SECTION. TREES TR ES 2016 Surface Water Design Manual — Appendix C 4/24/2016 C.2.� 'ERFORATED PIPE CONNECTION 111 "I'll 1111'', 1111 �11111 - III 11, Le surfaces (_us%a__11_y roof runoff) directly to a local drainage system while providing some infiltration of that runoff in the process. They are required for any pipe connection of roof downspouts to the local drainage system regardless of the extent to which flow control BNIPs are required or being used onsite. Perforated pipe connections are intended to provide for some infiltration during drier periods (late spring through early fall), which may help dampen the flashiness of stream flows in developed areas and provide some groundwater recharge. During the wet winter months, however, this BMP likely provides little or no flow control benefits. Therefore, it is not credited with mitigating target impervious surface. Applicable Surfaces �,W f Le_ppaxforated pip tion ma�vainplied to -e nnec� concentrated nmoff from any impervious surface or non-native pervious surface. 5 Tff PTUMMM tT.L See Section C.2.11.2 (below). IMUHI�l 1 .911 BOTEM Figure C.2.1 LA (p* C- 106) illustrates a perforated pipe connection for a typical single family residence. impervious areas larger than 10,000 square feet and non-native pervious areas larger than 35,000 square feet may require larger pipe to adequately convey flows and should be designed by a civil engineer. Perforated pipe connections must be installed according to the following requirements: 1 . Where possible, the perforated pipe connection must be placed in native soil to maximize infiltration of water, and must not be located under impervious surfaces, except as a last resort. 2. The gravel filled trench must be at least 10-feet in length for every 5,000 square feet of impervious surface or 35,000 square feet of non-native pervious surface from which runoff is conveyed. 3. The perforated portion of the system may not be placed in a critical area buffer or on slopes steeper than 25%. Any proposed placement of the perforated portion on slopes steeper than 15% or within 50 feet of a steep slope hazard area or landslide hazard area must be approved by a geotechnical engineer or engineering geologist unless otherwise approved by the DPER staff geologist. 4. For sites with septic systems, the perforated portion of the system must be down slope of the drainfield primary and reserve areas. DPER permit review staff can waive this requirement if site topography clearly prohibits subsurface flows from intersecting the drainfield. 5. The perforated pipe connection must not create flooding or erosion impacts as determined by DPER. If the system discharges toward or is near a landslide hazard area, erosion hazard area, steep slope hazard area, or a slope steeper than 15%, DPER may require evaluation and approval of the proposal by a geotechnical engineer or engineering geologist. 6. A minimum of a 5 foot setback is required between any part of the perforated pipe trench and any property line, 11 0 If the perforated pipe connection flow control BNIP is required for a project, the following maintenance and *r4,v_U2,,-cv-c revuired declaration of covenant and grant of easement per Requirement 3 of Section C. 1.3.4 (p. C-23). The intent of these instructions is to explain to future property owners, the purpose of the BW and how it must be maintained and operated. These kcstnictions are intended to be a minimum; DPER may require additional instructions based on site -specific 2016 Surface Water Design Manual — Appendix C 4/24/2016 C-105 SECTION C3FLOW CONTROL i o conditions. Also, uuthe County gains more experience with the maintenance and operation oƒthese BYWPs, future updates to the instructions will be posted on King o Surface Water Design Manua/webeite. A reproducible copy of the instructions, prepared for inclusion with the declaration of covenant, is located in Rofer000eM. Your property contains ostormwob*rmanagement flow control BWYP(best management practice) called a .'perforated pipe connection," which was installed to reduce the stormwater runoff impacts of some or all of the impervious surface onyour property. Aperforated pipe connection iaalength ofdrainage conveyance pipe with holes in the bottom, designed to "leak" runoff, conveyed by the pipe, into a gravel filled trench where itcan basoaked into the surrounding soil. The connection iointended bnprovide opportunity for infiltration of any runoff that is being conveyed from an impervious surface (usually a roof) to a local drainage system such aaaditch nrroadway pipe system. The size and composition of the perforated pipe connection as depicted by the flow control BMP site plan and design details must be maintained and may not be changed without written approval either from the King County Water and Land Resources Division or through a future development permit from King County. The soil overtop of the perforated portion of the system must not be compacted or covered with impervious materials. — RANDOM FILL 6" MIN 18" MINFILTER FABRIC 6" PERFORATED PIPE TRENCH X-SECTION NTS TO ROAD DRAINAGE SYSTEM x 10'LEVEL TRENCH 'PERFoFATsoP|PE 4/24/2016 2016 Surface Water Design Manual — Appendix C APPENDIX A MAINTEI / \CE REQUIREMENTS FOR FLOW CONTROL, C ^ WEYANCE, AND WQ FACILITIES . 5 -- CATCH, 1 Maintenance Defect or Problem Condition When Maintenance is Needed Results Expected When Component Maintenance is Performed Structure Sediment Sediment exceeds 60% of the depth from the Sump of catch basin contains no bottom of the catch basin to the invert of the sediment. lowest pipe into or out of the catch basin or is within 6 inches of the invert of the lowest pipe into or out of the catch basin. Trash and debris Trash or debris of more than %. cubic foot which No Trash or debris blocking or is located immediately in front of the catch basin potentially blocking entrance to opening or is blocking capacity of the catch basin catch basin. by more than 10%. Trash or debris in the catch basin that exceeds No trash or debris in the catch 1/3 the depth from the bottom of basin to invert basin. the lowest pipe into or out of the basin. Dead animals or vegetation that could generate No dead animals or vegetation odors that could cause complaints or dangerous ,' present within catch basin. gases (e.g., methane). Deposits of garbage exceeding 1 cubic foot in No condition present which would volume. attract or support the breeding of insects or rodents. Damage to frame Corner of frame extends more than % inch past Frame is even with curb. and/or top slab curb face into the street (If applicable). Top slab has holes larger than 2 square inches Top slab is free of holes and cracks. or cracks wider than % inch. Frame not sitting flush on top slab, i.e., Frame is sitting flush on top slab. separation of more than % inch of the frame from the top slab. Cracks in walls or Cracks wider than ''/z inch and longer than 3 feet, Catch basin is sealed and is bottom any evidence of soil particles entering catch structurally sound. basin through cracks, or maintenance person judges that catch basin is unsound. Cracks wider than '/2 inch and longer than 1 foot No cracks more than 1/4 inch wide at at the joint of any inlet/outlet pipe or any the joint of inlet/outlet pipe. evidence of soil particles entering catch basin through cracks. Settlement/ Catch basin has settled more than 1 inch or has Basin replaced or repaired to design misalignment rotated more than 2 inches out of alignment. standards. Damaged pipe joints Cracks wider than '/z-inch at the joint of the No cracks more than %-inch wide at inlet/outlet pipes or any evidence of soil entering the joint of inlet/outlet pipes. the catch basin at the joint of the inlet/outlet pipes. Contaminants and Any evidence of contaminants or pollution such Materials removed and disposed of pollution as oil, gasoline, concrete slurries or paint. according to applicable regulations. Source control BMPs implemented if appropriate. No contaminants present other than a surface oil film. Inlet/Outlet Pipe Sediment Sediment filling 20% or more of the pipe. Inlet/outlet pipes clear of sediment. accumulation Trash and debris Trash and debris accumulated in inlet/outlet No trash or debris in pipes. pipes (includes floatables and non-floatables). Damaged Cracks wider than '%-inch at the joint of the No cracks more than %-inch wide at inlet/outlet pipes or any evidence of soil entering the joint of the inlet/outlet pipe. at the joints of the inlet/outlet pipes. 2016 Surface Water Design Manual — Appendix A 4/24/2016 A-9 I =10V I Magi ol i ineill Proble Condition When Maintenanc ected When is Performed Metal Grates Unsafe grate opening Grate with opening WAider than 8 inc Grate opening meets design (Catch Basins) standards. Trash and debris Trash and debris that is blocking mo than 20% oil of grate surface. R.R. -ff. -IN 1,, 11,0141, Damaged or missing Grate missing or broken member(s) of the grate. Grate is in place and meets design Any open structure requires urgent standards. maintenance. Manhole Cover/Lid Cover/lid not in place Cover/lid is missing or only partially in place. Cover/lid protects opening to Any open structure requires urgent structure. ma ntenance. Locking mechanism Mechanism cannot be opened by one Mechanism opens with proper tools. Not Working maintenance person with proper tools. Bolts cannot be seated. Self-lockin covertlid does ng� work. — - — - - - - ------------ — Cover/lid difficult to One maintenance person cannot remove Remove c ver/lid after applying 80 lbs. of lift. 4/24/2016 2016 Surface Water Design Manual — Appendix A A-10 APPENDIX A MAINTE 'CE REQUIREMENTS FOR FLOW CONTROL, { fVEYANCE, AND WQ FACILITIES [�N7O.6"- C Q < E PlPeS ANDDITCHES Maintenance Defect or Problem Conditions When Maintenance is Needed Results Expected When Component Maintenance is Performed Pipes Sediment & debris Accumulated sediment or debris that exceeds Water flows freely through pipes. accumulation 20% of the diameter of the pipe. Vegetation/roots Vegetation/roots that reduce free movement of Water flows freely through pipes. water through pipes. Contaminants and Any evidence of contaminants or pollution such Materials removed and disposed of pollution as oil, gasoline, concrete slurries or paint. according to applicable regulations. Source control BMPs implemented if appropriate. No contaminants present other than a surface oil film. Damage to protective Protective coating is damaged; rust or corrosion Pipe repaired or replaced. coating or contusion is weakening the structural integrity of any part of pipe. Damaged Any dent that decreases the cross section area Pipe repaired or replaced. of pipe by more than 20% or is determined to have weakened structural integrity of the pipe. Ditches Trash and debris Trash and debris exceeds 1 cubic foot per 1,000 Trash and debris cleared from square feet of ditch and slopes. ditches. Sediment Accumulated sediment that exceeds 20% of the Ditch cleaned/flushed of all accumulation design depth. sediment and debris so that it matches design. Noxious weeds Any noxious or nuisance vegetation which may Noxious and nuisance vegetation constitute a hazard to County personnel or the removed according to applicable public. regulations. No danger of noxious vegetation where County personnel or the public might normally be. Contaminants and Any evidence of contaminants or pollution such Materials removed and disposed of pollution as oil, gasoline, concrete slurries or paint. according to applicable regulations. Source control BMPs implemented if appropriate. No contaminants present other than a surface oil film. Vegetation Vegetation that reduces free movement of water Water flows freely through ditches; through ditches. Erosion damage to Any erosion observed on a ditch slope. Slopes are not eroding. slopes Rock lining out of One layer or less of rock exists above native soil Replace rocks to design standards. place or missing (If area 5 square feet or more, any exposed native Applicable) soil. 2016 Surface Water Design Manual — Appendix A 4/24/2016 A-11 APPENDIX A MAINTENANCE F JIREMENTS FLOW CONTROL, CONVEYANC: _VD WQ FACILITIES Maintenance Defect Condition When Maintenance is Needed Results Expected When Component Maintenance is Performed Site Trash and debris Any trash or debris which impairs the function of Trash and debris removed from the facility. facility. Contaminants and Floating oil in excess of 1 inch in first chamber, No contaminants present other than pollution any oil in other chambers or other contaminants a surface oil film. of any type in any chamber. Vault Treatment Sediment Sediment accumulates exceeds 6 inches in the No sediment in the vault. Area accumulation vault. Discharge water not Inspection of discharge water shows obvious Effluent discharge is clear, clear signs of poor water quality- effluent discharge from vault shows thick visible sheen. Trash or debris Any trash and debris accumulation in vault Vault is clear of trash and debris. accumulation (floatables and non-floatables). Oil accumulation Oil accumulations that exceed 1 inch, at the No visible oil depth on waters surface of the water in the oil/water separator chamber. Vault Structure Damage to Wall, Cracks wider than ''Y inch or evidence of soil Vault replaced or repaired to design Frame, Bottom, particles entering the structure through the specifications. and/or Top Slab cracks, or maintenance/inspection personnel determines that the vault is not structurally sound. Baffles damaged Baffles corroding, cracking, warping and/or Repair or replace baffles to showing signs of failure as determined by specifications. maintenance inspection personnel. Gravity Drain Inoperable valve Valve will not open and close. Valve opens and closes normally. Valve won't seal Valve does not seal completely. Valve completely seals closed. Inlet/Outlet Pipe Sediment Sediment filling 20% or more of the pipe. Inlet/outlet pipes clear of sediment. accumulation Trash and debris Trash and debris accumulated in inlettoutlet No trash or debris in pipes. pipes (includes floatables and non-floatables). Damaged Cracks wider than''/z-inch at the joint of the No cracks more than %,-inch wide at inlettoutlet pipes or any evidence of soil entering the joint of the inlet/outlet pipe. at the joints of the inlet/outlet pipes. Access Manhole Cover/lid not in place Cover/lid is missing or only partially in place. Manhole access covered. Any open manhole requires immediate maintenance. Locking mechanism Mechanism cannot be opened by one Mechanism opens with proper tools. not working maintenance person with proper tools. Bolts cannot be seated. Self-locking cover/lid does not work. Cover/lid difficult to One maintenance person cannot remove Cover/lid can be removed and remove cover/lid after applying 80 Ibs of lift. reinstalled by one maintenance person. Ladder rungs unsafe Missing rungs, misalignment, rust, or cracks. Ladder meets design standards. Allows maintenance person safe access. Large access Damaged or difficult Large access doors or plates cannot be Replace or repair access door so it doors/plate to open opened/removed using normal equipment. can opened as designed. Gaps, doesn't cover Large access doors not flat and/or access Doors close flat and cover access completely opening not completely covered. opening completely. Lifting Rings missing, Lifting rings not capable of lifting weight of door Lifting rings sufficient to lift or rusted or cover/lid. remove cover/lid. 4/24/2016 2016 Surface Water Design Manual — Appendix A A-32 APPENDIX A MAINTF1 tE REQUIREMENTS FOR FLOW CONTROL, IVEYANCE, AND WQ FACILITIES NFO�--2�3'-CC6.4L,ESCINd,PLATE61L,,W,'A�,T,�,.� RSEPARATOR, Maintenance Defect Condition When Maintenance is Needed Results Expected When Component Maintenance is Performed Site Trash and debris Any trash or debris which impairs the function of Trash and debris removed from the facility. facility. Contaminants and Floating oil in excess of I inch in first chamber, No contaminants present other than pollution any oil in other chambers or other contaminants a surface oil film. of any type in any chamber. Vault Treatment Sediment Sediment accumulation of 6 inches or greater in No sediment in the forebay. Area accumulation in the the forebay. forebay Discharge water not Inspection of discharge water shows obvious Repair function of plates so effluent clear signs of poor water quality - effluent discharge is clear. from vault shows thick visible sheen. Trash or debrs rash and debris accumulation in vault Trash and debris removed from accumulation (floatables and non-floatables). vault. Oil accumulation Oil accumulation that exceeds I inch at the water No visible oil depth on water and surface in the in the coalescing plate chamber. coalescing plates clear of oil. Coalescing Plates Damaged Plate media broken, deformed, cracked and/or Replace that portion of media pack showing signs of failure. or entire plate pack depending on severity of failure. Sediment Any sediment accumulation which interferes with No sediment accumulation accumulation the operation of the coalescing plates. interfering with the coalescing plates. Vault Structure Damage to Wall, Cracks wider than %-inch and any evidence of Vault replaced or repaired to design Frame, Bottom, soil particles entering the structure through the specifications. and/or Top Slab cracks, or maintenance inspection personnel determines that the vault is not structurally sound. Baffles damaged Baffles corroding, cracking, warping and/or Repair or replace baffles to showing signs of failure as determined by specifications. maintenance/inspection person. Ventilation Pipes Plugged Any obstruction to the ventilation pipes. Ventilation pipes are clear, Shutoff Valve Damaged or Shutoff valve cannot be opened or closed, Shutoff valve operates normally, inoperable Inlet/Outlet Pipe Sediment Sediment filling 20% or more of the pipe. Inlettoutlet pipes clear of sediment. accumulation Trash and debris Trash and debris accumulated in inletloutlet No trash or debris in pipes,, pipes (includes floatables and non-floatables). Damaged Cracks wider than 1/2-inch at the joint of the No cracks more than Yinch wide at inletloutlet pipes or any evidence of soil enterng the joint of the inlet/outlet pipe. at the joints of the inlet/outlet pipes. Access Manhole Cover/lid not in place Cover/lid is missing or only partially in place. Manhole access covered. Any open manhole requires immediate maintenance. Locking mechanism Mechanism cannot be opened by one Mechanism opens with proper tools. not working maintenance person with proper tools. Bolts cannot be seated. Self-locking cover/lid does not work. Cover/lid difficult to One maintenance person cannot remove Cover/lid can be removed and remove cover/lid after applying 80 lbs of lift. 1 reinstalled by one maintenance person. i Ladder rungs unsafe Missing rungs, misalignment, rust, or cracks. Ladder meets design standards. Allows maintenance person safe access. 2016 Surface Water Design Manual — Appendix A 4/24/2016 A-33 APPENDIXtTENANCE: UIREMENTS FLOW CONTROL,i CATCH BASIN INSERT Maintenance Defect or Problem Conditions When Maintenance is Needed Results Expected When Component Maintenance is Performed Media Insert Visible Oil Visible oil sheen passing through media Media inset replaced, Insert does not fit Flow gets into catch basin without going through All flow goes through media. catch basin properly media. Filter media plugged Filter media plugged„ Flow through filter media is normal. Oil absorbent media Media oil saturated. Oil absorbent media replaced. saturated Water saturated Catch basin insert is saturated with water, which Insert replaced. no longer has the capacity to absorb. Service life exceeded Regular interval replacement due to typical Media replaced at manufacturer's average life of media insert product, typically one recommended interval month. Seasonal When storms occur and during the wet season. Remove, clean and replace or install maintenance new insert after major storms, monthly during the wet season or at manufacturer's recommended interval. 4/24/2016 2016 Surface Water Design Manual — Appendix A A-34 APPENDIX A MAINTET tE REQUIREMENTS FOR FLOW CONTROL, C VEYANCE, AND WQ FACILITIES IVE VEGETATEDSURFACE [NATIVE VEGETATED LANbSd APE Maintenance Defect or Problem Condition When Maintenance is Needed Results Expected When Component Maintenance Is Performed Site Trash and debris Trash and debris accumulated on the native Native vegetated surface site free vegetated surface/native vegetated landscape of any trash or debris. site, Vegetation Native vegetation Less than two species each of native trees, A minimum of two species each of type shrubs, and groundcover occur in the design native trees, shrubs, and area. groundcover is established and healthy. Native vegetated area Less than 90% if the required vegetated area has A minimum of 90% of the required healthy growth. vegetated area has healthy growth. Undesirable Weeds, blackberry, and other undesirable plants Less than 10% undesirable vegetation are invading more than 10% of vegetated area. vegetation occurs in the required native vegetated surface area. Vegetated Area Soil compaction Soil in the native vegetation area compacted. Less than 8% of native vegetation area is compacted. Insufficient area Less than 3.5 square feet of native vegetation A minimum of 3.5 square feet of area for every 1 square foot of impervious native vegetation area for every 1 surface. square foot of impervious surface. Excess slope Slope of native vegetation area greater than 15%. Slope of native growth area does not exceed 15%. Inspection Frequency Annually Inspect native vegetation area for any defects of deficiencies O. 29 -"PEROFORATES PIPE CONNECTIONS, BMP Maintenance Defect or Problem Conditions When Maintenance is Needed Results Expected When Component Maintenance is Performed Preventative Blocking, obstructions Debris or trash limiting flow into perforated pipe Outfall of BMP is receiving system or outfall of BMP is plugged or otherwise designed flows from perforated pipe nonfunctioning. connection. Inflow Inflow impeded Inflow into the perforated pipe is partially or fully Inflow to the perforated pipe is blocked or altered to prevent flow from getting unimpeded. into the pipe. Pipe Trench Area Surface compacted Ground surface over the perforated pipe trench is Ground surface over the perforated compacted or covered with impermeable material. pipe is not compacted and free of any impervious cover. Outflow Outflow impeded Outflow from the perforated pipe into the public Outflow to the public drainage drainage system is blocked. system is unimpeded. Outfall Area Erosion or landslides Existence of the perforated pipe is causing or Perforated pipe system is sealed off exasperating erosion or landslides. and an alternative BMP is implemented. Inspection Frequency Annually and prior to and following significant Perforated pipe system is operating storms, as designed. 2016 Surface Water Design Manual — Appendix A 4/24/2016 A-37 APPENDIX A MA ENANCE REQUIREMENTS FOR FLOW CONT: ; CONVEYANCE, AND WQ FACILITIES Maintenance Defect or Problem Conditions When Maintenance is Needed Results Expected When Component Maintenance is Performed Preventative Vegetation Vegetation to be watered and pruned as Healthy vegetation growth with full needed and mulch applied to a minimum of 2 coverage as designed. inches to maintain healthy growth. Bioretention Area Trash and debris Trash and debris in the bioretention area; leaf No trash or debris In the bioretention drop in the fall season. area. Sediment Sediment accumulation in the bioretention area Water in the bioretention infiltrates as accumulation interfering with infiltration. designed. Ponding Standing water in the bioretention area for Standing water infiltrates at the more than two days. desired rate. Inflow Inflow not getting into bioretention; Unobstructed and properly routed debris/sediment blockage at inlet features; inflow into bioretention area; inlet is native soil is exposed or other signs of erosion stabilized and appropriately armored. damage is present. Overflow outlet Overflow water not controlled by outlet Outlet features control overflow; features; native soil is exposed or other signs overflow is stabilized and appropriately of erosion damage is present. armored. Underdrain Underdrain is not flowing when bioretention Underdrain flows freely when water is area has been infiltrating water. present. Vegetation Plant health Plants not thriving across at least 80% of the Healthy water tolerant plants in entire design vegetated area within the BMP; bioretention area, plants thriving overly dense vegetation requiring pruning. across at least 80% of the entire design vegetated area within the facility. Plant species Plants not water tolerant species. Plants are water tolerant. Weeds Weeds growing in bioretention area. No weeds in bioretention area. Watering Planting schedule requires frequent watering Plants are established and thriving (approx. weekly Year 1, bimonthly Years 2 and 3) for new facilities, and as needed for established plantings or dry periods Pest Control Signs of pests, such as wilting or chewed Plant community is pest -free when leaves or bark, spotting or other indicators; following an approved Integrated Pest extended ponding period encouraging Management plan; bioretention mosquitoes functioning normally and ponding controlled as needed for pest control Containment Berm Erosion; Erosion occurring at earthen slopes or Erosion on the containment berm and and Earthen Slopes containment berm side slope. side slopes has been repaired and the cause of the erosion corrected. Voids created by Voids affecting berm integrity or creating leaky Voids have been repaired; facility is nuisance animals pond condition free of nuisance animals following an (e.g., rodents) or tree approved Integrated Pest roots Management plan. Settlement Any part of the containment berm top has less A minimum of 6 inches freeboard from than 6 inches of freeboard from the maximum the maximum pond level to the top of pond level to the top of the berm. the berm. Amended Soil Soil nutrients Soil not providing plant nutrients. Soil providing plant nutrients. Bare spots Bare spots on soil in bioretention area. No bare spots, bioretention area covered with vegetation or mulch mixed into the underlying soil. Compaction Poor infiltration due to soil compaction in the No soil compaction in the bioretention bioretention area. area. Inspection Frequency Annually and after large storms, and as Bioretentionfacility is functioning needed seasonally for pruning, plant normally; plant community is thriving maintenance, pest control and to control leaf and pest -free. drop, evergreen needles etc. 2016 Surface Water Design Manual— Appendix A 4/24/2016 A-39 01019 31:101 King County Surface Water Management Division, 2009. King County Surface Water Design Minual. FCng County Water and Land Resources Division, Storrawater Services Section, 2009. King County Stormwater Pollution Prevention Manual. 9, 1 �� 1! 1 1 11 jf?jjpjjjijt , .� South King Fire & Rescue July 2018 S1KFR Facility Improvements -Station 60 -35RI ldC - Technical Information Report 11 South KingI SKFR Facility Improvements -Station r Technical Information Report . .............. . ... . .. .. . ... HAN! LANK SHEET' FLOW GN\5,,'� V R . . . .... .... -- ----- 0, ARROWS, TYP EXI'S-nNG- DE p, TA(DISCHARGETO k w , pvs ACIfl' H ..... .... . . ...... .... ... ... . . ..... - . .... . 7--- re — - - ------ - — ----- -- ----... .. ... . . ... _r. PKW B IN BOUNDARY� Al t �Z TYq ,c I �q RAP Jjjy T�X! CN EXI sTI G STORM COLILECTION AND_ . . ... QQNVEYANQt SYSTEM TYP .. .. . . ..... .. . HIGH CKNiNI ARSS .......... tc cokm, NNIIERS' B JILDI�N'G BURDW MAINTENM "I 4Dl E32 --- — - ------ - --- - x U K h. �j . . ............ ...... ..... -2, Cx.�tvN (3 81,_100K - Z�p CONIC• 7 . ....... .. .... .... .. . 7 AS, At 7 . ....... . ...... . ... ... . ... .. - -------- -- . . ......... . . .. -- ----- --- ... .. .. ...... .............. ------ -- --- --- mm . . .... . .... .... . ....... 3521\11) ST .. . ...... .. . .... . --- ----- monsoon ...... .... ...... ............ . . ........... . . ........... . ... ..... ... . N'AL OT TO,,8C E' EXISTING DRAINAGE BASIN Exhibit Al SOUTH KING FIRE & RESCUE - STATION 63 FACILITY IMPROVEMENTS 07/17/2018 9.-5ftn K\21CP\18\01 SM Fin SWUM 60 rlaci* lmpfvmfttt\Dmfflnq\wgA CAD 2016\Work-W\Druinage Basins.dwg ■ r ti H f "A tt NOTTO SCALE DOWNSTREAM MAP Exhibit A3 SOUTH KING FIRE& RESCUE -STATION 60 FACILITY IMPROVEMENTS 07/T7/WlA $0.'Olcm HAZICAIAWI %FR F"m Sivrim m rociriv co zps ya y iWmaws Qouth King Fire & Rescue July 2019- S1KFR i,f# InformationTechnical Report 5: P 00 00 to 00 R to 000 . Pto , ul ON U. C4 9b 't PA owl, lar un CL E cc 06 O 0) Ln cq C; Rim �1111111 �11�11111 II�11111 II�11111 �� II�IIII �I�IRII �NIIII �NIIIII �11111111 �11111111 �11911111 �1111111 �1111111 111111 �11111 ��1 �I Ilel ■I IIII, • i Y South King Fire & Rescue July 2018 SKF'R Facility Improvements -Station 60 it Technical Information Report M,.TT.6T ZZI I t i U) Z, (D U) 0 U) m 0 o 0 76 0 in x li w,2 cc 0 C N.TT.6T oZZT 49 L6 U) CD Co a)a) co N. 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Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 8 Hydric soil rating: No Soil Survey Area: King County Area, Washington Survey Area Data: Version 13, Sep 7, 2017 USDA Natural Resources Web Soil Survey 4/17/2018 Z" Conservation Service National Cooperative Soil Survey Page 1 of 1 If drained, this soil is used for row crops. is also used for pasture. Capability unit Ilw-3; no woodland classification. i Urban land (Ur) is soil that has been moded by disturbance of the natural layers with additions of fill material several feet thick to accommodate largc industrial and housing installations. In the Green River Valley the fill ranges from about 3 to more than 12 feet in thickness, and from gravelly sandy loam to gravelly loam in texture, The erosion hazard is slight to moderate. No capability or woodland classification. The Woodinville series is made up of nearly level and gently undulating, poorly drained soils that formed under grass and sedges, in alluvium, on stream bottoms. Slopes are 0 to 2 percent. The annual precipitation ranges from 35 to 55 inches, and the mean annual air temperature is about 500 F. The frost -free season is about 190 days. Elevation ranges from about sea level to about 85 feet. In a representative profile, gray silt loam, silty clay loam, and layers of peaty muck extend to a depth of about 38 inches. This is underlain by greenish -gray silt loam that extends to a depth of 60 inches and more. Woodinville soils are used for row crops, pasture, and urban development. Woodinville silt loam (Wo).--This soil is in elon- gated and blvay sh�app&areas that range from 5 to nearly 360 acres in size. It is nearly level and gently undulating. Slopes are less than 2 percent. Representative profile of Woodinville silt loam, in pasture, 1,700 feet south and 400 feet west of the north quarter corner of sec. 6, T. 2S N., R. 7 E.: Apl--O to 3 inches, gray (SY 5/1) silt loam, grayish brown (10YR 5/2) dry; common, fine, prominent, dark reddish -brown (SYR 3/4) and reddish -brown mottles; moderate, medium, crumb structure; hard, friable, sticky, plastic; many fine roots; medium acid; clear, smooth boundary. 2 to 4 inches thick. 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E 0 :E3 N N O E 0 S p C N V1 E 0 -C E 3: -C:d C cc N ca a 'a 0 0 z o Cu :3 ClJ 04 F-- 83 c (L 80 0 z z z c D South King Fire & Rescue July 2018 SENR Facility Improvements -Station 60 ttd�ttl Technical InformationReport 810,221JIMS), =I City of Federal,yay 33325 8♦th Ave. South FederalWA 98003 Grantor: Legal Description: See Exhibit A Additional Legal(s) on: Assessor's Tax Parcel 1D# 202104-9148, 20214-9059 for application No. relating to the real property ("Property") described above, the Grantor(s), the owner(s) in fee of that Property, hereby covenants (covenant) with the City of Federal Way, a political subdivision of the state of Washington and its municipal successors in interest and assigns ("City of Federal Way" and "the City", or "its municipal successor"), that he/she (they) will observe, consent to, and abide by the conditions and obligations set forth and described in Paragraphs I through 10 below with regard to the Property, and hereby grants (grant) an easement as described in Paragraphs 2 and 3. Grantor(s) hereby grants (grant), covenants (covenant), and agrees (agree) as follows: their own cost, operate, maintain, and keep in good repair, the Property's storinwater facilities and best management practices ("BMPs") identified in the plans and specifications submitted to the City of Federal Way for the review and approval of permit(s) #: Stormwater facilities include pipes, swales, tanks, vaults, ponds, and other engineered structures designed to manage stormwater on the Property. Stormwater BMPs include dispersion and infiltration devices, native vegetated areas, permeable pavements, vegetated roofs, rainwater harvesting systems, reduced impervious surface coverage, and other measures designed to reduce the amount of stormwater runoff on the Property. 111 11111pill I 11�ppiij! the Property necessary to perform inspections of the stormwater facilities and BMPs and conduct other activities specified in this Declaration of Covenant and in accordance with Federal Way Municipal Code (NBMC) Chapter 14. This right of ingress and egress, right to inspect, and right to perform required maintenance or repair as provided for in Section 3 below, shall be on the Property as shown in Exhibit "A." 1151��!111111111�11 pill 111111111�1111111 ME=. done to any of the stormwater facilities or BMPs, the City of Federal Way Public Works Director (PWD) shall give notice of the specific maintenance and/or repair work pursuant to NBMC Chapter 14. The PWI) shall also set a reasonable time in which such work is to be completed by the Owners. If the above required maintenance or repair is not completed within the time set by the PVvTD, the City may perform the required maintenance or repair, and hereby is given access to the Property, subject to the exclusions in Paragraph 2 above, for such purposes. Written notice will be sent to the Owners stating the City's intention to perform such work. This work will not commence until at least seven (7) days after such notice is mailed. If, within the sole discretion of the PVVD, there exists an imminent or present danger, the seven (7) day notice period will be waived and maintenance and/or repair work will begin immediately. W Jill II!, 111111111111� I �� 0 BMP on the Property creates any hazards, the PWD may take measures specified therein. 5. The Owners shall assume all responsibility for the cost of any maintenance or repair work completed by the City as described in Paragraph 3 or any measures taken by the City to address hazardous conditions as described in Paragraph 4. Such responsibility shall include reimbursement to the City within thirty (30) days of the receipt of the invoice for any such work performed. Overdue payments will require payment of interest at the current legal rate as liquidated damages. If legal action ensues, the prevailing party is entitled to costs or fees. 6. The Owners are hereby required to obtain written approval from the City of Federal Way PWD prior to filling, piping, cutting, or removing vegetation (except in routine landscape maintenance) in open vegetated stormwater facilities (such as swales, channels, ditches, ponds, etc.), or performing any alterations or modifications to the stormwater facilities and BMPs referenced in this Declaration of Covenant. 7. Any notice or consent required to be given or otherwise provided for by the provisions of this Agreement shall be effective upon personal delivery, or three (3) days after mailing by Certified Mail, return receipt requested. 8. With regard to the matters addressed herein, this agreement constitutes the entire agreement between the parties, and supersedes all prior discussions, negotiations, and all agreements whatsoever whether oral or written. 9. This Declaration of Covenant is intended to protect the value and desirability of the real property described above, and shall inure to the benefit of all the citizens of the City of Federal Way. This Declaration of Covenant shall run with the land and be binding upon Grantor(s), and Grantor's(s') successors in interest, and assigns. 10. This Declaration of Covenant may be terminated by execution of a written agreement by the Owners and the City of Federal Way that is recorded by King County in its real property records. IN WITNESS WHEREOF, this Declaration of Covenant for the Inspection and Maintenance of to water Facilities and BMPs is executed this . day of 5 20_ G =1 STATE OF WASHINGTON) COUNTY OF KING )ss. , to me known to be the individual(s) described in and who executed the within and foregoing instrument and acknowledged that they signed the same as their free and voluntary act and deed, for the uses and purposes therein stated. Given under my hand and official seal this day of 20_ Printed name Notary Public in and for the State of Washington, residing at My appointment expires M