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Home My WebLink About3210 Smokey Point Dr_PWD1012_2026 âœ” âœ” Village Community Services Parking Lot Resurfacing 00645300001200, 00645300001201, 00645300001301 3210 Smokey Point Drive, Arlington WA 98223 Removal and replacement of existing asphalt parking lot Tami Wierman - Village Community Services 3210 Smokey Point Drive Arlington WA 98223 (360) 653-7752 finance@villagecommunitysvcs.org Eric Scott - TerraVista NW 526 N West Ave, #18 Arlington WA 98223 425-422-0840 EricS@terravistanw.com Eric Scott - TerraVista NW 526 N West Ave, #18 Arlington WA 98223 425-422-0840 EricS@terravistanw.com 3527 6/30/2018 Pending NA NA NA NA NA NA NA NA Eric J. Scott 06/20/2017 NA âœ” âœ” âœ” NA âœ” âœ” NA CONTRUCTION PLAN REVIEW & INSPECTION FEE WORKSHEET Community & Economic Development Department 18204 59th Avenue NE City of Arlington ï¬ ï¬ Arlington WA 98223 ï¬ (360) 403-3551 This form is to be completed and submitted with Type I , Type II Type III Construction Permit Application. 1) Based on permit type requested (Type I, Type II or Type III), complete the form as follows: ï¬ Type I permits complete all sections. ï¬ Type II permits complete as follows: - Grading Only - Complete Temporary Erosion and Sediment Control (TESC). - Stormwater Drainage Only - Complete the Temporary Erosion and Sediment Control and Stormwater Drainage Section for Public or Private ï¬ Type III permits complete the Temporary Erosion and Sediment Control (TESC). 2) The developer shall enter the quantities shown on the construction drawings into the Construction Calculation Worksheet. This document is used to determine the amount of plan reivew and inspection fees due to the city. 3) Excel will auto-calculate the relevant fields and subtotals throughout the document. Only the 'Quantity' columns should be completed. 4) The summary page calculates the fees due at intake for Civil and Stormwater Drainage construction permits only. This does not include fees for Grading or those required by other departments or agencies. Grading fees are based on Cubic Yard Quantity and shall be calculated at time of permit submittal. Grading fees shall be paid at permit submittal. 5) If an item that is part of your project does not exist in the spreadsheet complete the Write-In-Items section with the item, quantity and associated unit cost. There are a few unit prices that are blank, please complete them accordingly. 6) Inspection fees shall be calculated for Private Development during the review process and shall be paid upon permit issuance. PLAN REVIEW & INSPECTION FEES PLAN REVIEW & INSPECTION FEE (6% of Project Value) $ 2,756.55 GRADING FEE (4) (Cubic Yard ) $ - Review fees due at time of submittal Total Review Fees Due $ 2,756.55 An Assurance Device such as a Performance Bond or Assignment of Funds needs to be on file with the City of Arlington prior to permit issuance. The Assurance Device shall be 150% of the Construction Calculation Worksheet which are as follows: ï¬ Road and Alley (Public) ï¬ Stormwater Drainage and Grading (Public) ï¬ Utilities (Public) ï¬ Temporary Erosion and Sediment Control (Public and Private) ASSURANCE DEVICE Base Calculation of Performance Device $ 45,942.50 PERFORMANCE DEVICE 150% Amount Due $ 68,913.75 Base Calculation of Maintenance Device $ 44,996.88 MAINTENANCE DEVICE 20% Amount Due $ 8,999.38 1 CONSTRUCTION CALCULATION WORKSHEET TEMPORARY EROSION & SEDIMENT CONTROL Include Public Improvements & Private Development Description Unit Price Unit Quantity Cost Reference # Backfill & compaction-embankment $ 6.50 CY $ - Check dams $ 78.00 EACH $ - BMP C207 Catch Basin Protection $ 35.50 EACH 3 $ 106.50 Crushed surfacing 1 1/4" minus $ 18.00 TON $ - WSDOT 9-03.9(3) Ditching $ 8.00 CY $ - Excavation-bulk $ 3.00 CY $ - Fence, silt $ 2.00 LF $ - BMP C233 Fence, Temporary (NGPA) $ 2.00 LF $ - Geotextile Fabric $ 2.50 SY $ - Hay Bale Silt Trap $ 0.50 EACH $ - Hydroseeding $ 4,200.00 ACRE $ - BMP C120 Interceptor Swale / Dike $ 1.00 LF $ - Jute Mesh $ 2.00 SY $ - BMP C122 Level Spreader $ 1.75 LF $ - Mulch, by hand, straw, 3" deep $ 3.00 SY $ - BMP C121 Mulch, by machine, straw, 2" deep $ 1.00 SY $ - BMP C121 Piping, temporary, CPP, 6" $ 12.50 LF $ - Piping, temporary, CPP, 8" $ 19.00 LF $ - Piping, temporary, CPP, 12" $ 24.00 LF $ - Plastic covering, 6mm thick, sandbagged $ 3.00 SY $ - BMP C123 Rip Rap, machine placed; slopes $ 50.00 CY $ - WSDOT 9-13.1(2) Rock Construction Entrance, 50'x15'x1' $ 1,800.00 EACH $ - BMP C105 Rock Construction Entrance, 100'x15'x1' $ 3,600.00 EACH $ - BMP C105 Sediment pond riser assembly $ 3,050.00 EACH $ - BMP C241 Sediment trap, 5' high berm $ 21.00 LF $ - BMP C240 Sed. trap, 5' high, riprapped spillway berm section $ 79.00 LF $ - BMP C240 Seeding, by hand $ 1.00 SY $ - BMP C120 Sodding, 1" deep, level ground $ 8.00 SY $ - BMP C120 Sodding, 1" deep, sloped ground $ 9.50 SY $ - BMP C120 TESC Supervisor $ 84.00 HR $ - Water truck, dust control $ 130.00 HR 5 $ 650.00 BMP C140 WRITE-IN-ITEMS $ - $ - $ - $ - $ - $ - SUBTOTAL (TESC Only): $ 756.50 MOBILIZATION 10%: $ 75.65 CONTINGENCY 15%: $ 113.48 TOTAL: $ 945.63 CONSTRUCTION CALCULATION WORKSHEET STORMWATER DRAINAGE Public Private Public Improvements Private Development Description Unit Price Unit Quantity Cost Quantity Cost Access Road, Retention / Detention $ 26.00 SY $ - $ - * (CBs include frame and lid) Beehive $ 90.00 EACH $ - $ - CB Type I $ 1,650.00 EACH $ - $ - CB Type IL $ 1,850.00 EACH $ - $ - CB Type II, 48" Dia $ 2,550.00 EACH $ - $ - for additional depth over 4' $ 650.00 FT $ - $ - CB Type II, 54" Dia $ 2,700.00 EACH $ - $ - for additional depth over 4' $ 600.00 FT $ - $ - CB Type II, 60" Dia $ 2,900.00 EACH $ - $ - for additional depth over 4' $ 750.00 FT $ - $ - CB Type II, 72" Dia $ 4,000.00 EACH $ - $ - for additional depth over 4' $ 900.00 FT $ - $ - Through-curb Inlet Framework (Add) $ 550.00 EACH $ - $ - Cleanout, PVC, 4" $ 200.00 EACH $ - $ - Cleanout, PVC, 6" $ 250.00 EACH $ - $ - Cleanout, PVC, 8" $ 300.00 EACH $ - $ - Culvert, Box __ ft x __ ft $ - LS $ - $ - Culvert, PVC, 4" $ 12.00 LF $ - $ - Culvert, PVC, 6" $ 17.00 LF $ - 200 $ 3,400.00 Culvert, PVC, 8" $ 19.00 LF $ - $ - Culvert, PVC, 12" $ 30.00 LF $ - $ - Culvert, CMP, 8" $ 23.00 LF $ - $ - Culvert, CMP, 12" $ 35.00 LF $ - $ - Culvert, CMP, 15" $ 42.00 LF $ - $ - Culvert, CMP, 18" $ 47.00 LF $ - $ - Culvert, CMP, 24" $ 69.00 LF $ - $ - Culvert, CMP, 30" $ 100.00 LF $ - $ - Culvert, CMP, 36" $ 150.00 LF $ - $ - Culvert, CMP, 48" $ 194.00 LF $ - $ - Culvert, CMP, 60" $ 310.00 LF $ - $ - Culvert, CMP, 72" $ 400.00 LF $ - $ - Culvert, Concrete, 8" $ 36.00 LF $ - $ - Culvert, Concrete, 12" $ 43.00 LF $ - $ - Culvert, Concrete, 15" $ 52.00 LF $ - $ - Culvert, Concrete, 18" $ 55.00 LF $ - $ - Culvert, Concrete, 24" $ 85.00 LF $ - $ - Culvert, Concrete, 30" $ 136.00 LF $ - $ - Culvert, Concrete, 36" $ 165.00 LF $ - $ - Culvert, Concrete, 42" $ 196.00 LF $ - $ - Culvert, Concrete, 48" $ 210.00 LF $ - $ - Culvert, CPP, 6" $ 16.00 LF $ - $ - Culvert, CPP, 8" $ 22.00 LF $ - $ - Culvert, CPP, 12" $ 28.00 LF $ - $ - Culvert, CPP, 15" $ 34.00 LF $ - $ - Culvert, CPP, 18" $ 39.00 LF $ - $ - CONSTRUCTION CALCULATION WORKSHEET Culvert, CPP, 24" $ 49.00 LF $ - $ - Culvert, CPP, 30" $ 62.00 LF $ - $ - Culvert, CPP, 36" $ 69.00 LF $ - $ - Ditching $ 12.00 CY $ - $ - Flow Dispersal Trench (1,436 base+) $ 40.00 LF $ - $ - French Drain (3' depth) $ 39.00 LF $ - $ - Geotextile, laid in trench, polypropylene $ 5.00 SY $ - $ - Infiltration pond testing $ 125.00 HR $ - $ - Mid-tank Access Riser, 48" dia, 6' deep $ 2,025.00 EACH $ - $ - Pipe, High Density Water Pipe (HDWP) $ 160.00 LF $ - $ - Pipe, C900 $ 90.00 LF $ - $ - Pond Overflow Spillway $ 18.00 SY $ - $ - Restrictor/Oil Separator, 12" $ 1,500.00 EACH $ - $ - Restrictor/Oil Separator, 15" $ 1,550.00 EACH $ - $ - Restrictor/Oil Separator, 18" $ 1,680.00 EACH $ - $ - Riprap, placed $ 52.00 CY $ - $ - Tank End Reducer (36" Dia) $ 1,280.00 EACH $ - $ - Thru-Inlet at CB $ 150.00 EACH $ - $ - Trash Rack, 12" $ 320.00 EACH $ - $ - Trash Rack, 15" $ 325.00 EACH $ - $ - Trash Rack, 18" $ 350.00 EACH $ - $ - Trash Rack, 21" $ 375.00 EACH $ - $ - WRITE-IN-ITEMS Infiltration Gravel $ 27.00 CY $ - 19 $ 513.00 $ - $ - $ - $ - $ - $ - SUBTOTAL: $ - $ 3,913.00 MOBILIZATION 10%: $ - CONTINGENCY 15%: $ - TOTAL: $ - $ 3,913.00 CONSTRUCTION CALCULATION WORKSHEET GENERAL ITEMS Public Improvements Description Unit Price Unit Quantity Cost Backfill & Compaction- embankment $ 8.00 CY $ - Backfill & Compaction- trench $ 11.00 CY $ - Clear/Remove Brush, by hand (acre) $ 2,363.00 ACRE $ - Bollards - fixed $ 325.00 EACH $ - Bollards - removable $ 600.00 EACH $ - Clearing/Grubbing/Tree Removal $ 6,000.00 ACRE $ - Excavation - bulk $ 2.50 CY $ - Excavation - Trench $ 5.00 CY $ - Fencing, cedar, 6' high $ 25.00 LF $ - Fencing, chain link, 4' $ 19.50 LF $ - Fencing, chain link, vinyl coated, 6' high $ 18.00 LF $ - Fencing, chain link, gate, vinyl coated, 20' $ 1,563.00 EACH $ - Fencing, split rail, 3' high $ 14.00 LF $ - Fill & compact - common barrow $ 27.00 CY $ - Fill & compact - gravel base $ 30.00 CY 40 $ 1,200.00 Fill & compact - screened topsoil $ 45.00 CY $ - Gabion, 12" deep, stone filled mesh $ 62.00 SY $ - Gabion, 18" deep, stone filled mesh $ 86.00 SY $ - Gabion, 36" deep, stone filled mesh $ 152.00 SY $ - Grading, fine, by hand $ 2.00 SY $ - Grading, fine, with grader $ 1.25 SY $ - Guard Post $ 90.00 EACH $ - Monuments $ 104.00 EACH $ - Sensitive Areas Sign $ 20.00 EACH $ - Sodding, 1" deep, sloped ground $ 10.00 SY $ - Topsoil Type A (imported) $ 30.00 CY $ - Traffic control crew ( 2 flaggers ) $ 98.00 HR $ - Trail, 4" chipped wood $ 9.00 SY $ - Trail, 4" crushed cinder $ 10.00 SY $ - Trail, 4" top course $ 9.50 SY $ - Wall, retaining, concrete $ 66.00 SF $ - Wall, rockery $ 13.00 SF $ - WRITE-IN-ITEMS $ - $ - $ - $ - $ - $ - Subtotal $ 1,200.00 CONSTRUCTION CALCULATION WORKSHEET STREET IMPROVEMENT Public Improvements Description Unit Price Unit Quantity Cost AC Grinding, 4' wide machine < 1000sy $ 35.00 SY $ - AC Grinding, 4' wide machine 1000-2000sy $ 8.50 SY $ - AC Grinding, 4' wide machine > 2000sy $ 2.50 SY 2020 $ 5,050.00 AC Removal/Disposal/Repair $ 60.00 SY $ - Barricade, Type I $ 36.00 LF $ - Barricade Type II $ 25.00 LF $ - Barricade, Type III ( Permanent ) $ 55.00 LF $ - Conduit, 2" $ 5.00 LF $ - Curb & Gutter, rolled $ 20.00 LF $ - Curb & Gutter, vertical $ 15.00 LF $ - Curb and Gutter, demolition and disposal $ 20.00 LF $ - Curb, extruded asphalt $ 5.00 LF $ - Curb, extruded concrete $ 4.50 LF 540 $ 2,430.00 Guard Rail $ 30.00 LF $ - Sawcut, asphalt, 3" depth $ 3.50 LF $ - Sawcut, concrete, per 1" depth $ 3.00 LF 290 $ 870.00 Sealant, asphalt $ 2.00 LF $ - Shoulder, gravel, 4" thick $ 11.00 SY $ - Sidewalk, 4" thick $ 40.00 SY $ - Sidewalk, 4" thick, demolition and disposal $ 36.00 SY $ - Sidewalk, 6" thick $ 45.00 SY $ - Sidewalk, 6" thick, demolition and disposal $ 45.00 SY $ - Signs $ - LS $ - Sign, Handicap $ 100.00 EACH $ - Striping, per stall $ 7.50 EACH 33 $ 247.50 Street Light System $ - LS $ - Traffic Signal $ - LS $ - Traffic Signal Modification $ - LS $ - Striping, thermoplastic, ( for crosswalk ) $ 3.50 SF $ - Striping, 4" reflectorized line $ 0.40 LF $ - AC Patching/Trenching Restoration $ 100.00 TON $ - Controlled Density Fill (CDF) $ 90.00 CY $ - WRITE-IN-ITEMS $ - $ - $ - $ - $ - $ - Subtotal $ 8,597.50 CONSTRUCTION CALCULATION WORKSHEET STREET SURFACING/PAVEMENT Public Improvements Description Unit Price Unit Quantity Cost Asphalt Overlay, 1.5" AC $ 12.00 SY $ - Asphalt Overlay, 2" AC $ 15.00 SY $ - Asphalt Road 2", First 2500 SY $ 10.00 SY 2020 $ 20,200.00 Asphalt Road 2", Qty. over 2500SY $ 9.00 SY $ - Asphalt Road 3", First 2500 SY $ 15.00 SY $ - Asphalt Road 3", Qty. over 2500 SY $ 13.00 SY $ - Asphalt Road 5", First 2500 SY $ 22.00 SY $ - Asphalt Road 5", Qty. Over 2500 SY $ 22.00 SY $ - Asphalt Road 6", First 2500 SY $ 25.00 SY $ - Asphalt Road 6", Qty. Over 2500 SY $ 24.00 SY $ - Asphalt Treated Base, 4" thick $ 14.00 SY $ - Gravel Base Course 2" $ 7.50 SY $ - Gravel Base Course 4" $ 15.00 SY $ - Gravel Base Course 6" $ 22.50 SY $ - Gravel Road, 4" rock, First 2500 SY $ 15.00 SY $ - Gravel Road, 4" rock, Qty. over 2500 SY $ 11.00 SY $ - Concrete Road, 5", no base, over 2500 SY $ 22.00 SY $ - Concrete Road, 6", no base, over 2500 SY $ 32.00 SY $ - Thickened Edge $ 11.00 LF $ - WRITE-IN-ITEMS $ - $ - $ - $ - $ - $ - Subtotal $ 20,200.00 CONSTRUCTION CALCULATION WORKSHEET WATER SYSTEM Public Improvements Description Unit Price Unit Quantity Cost Blowoff $ 1,800.00 EACH $ - Connection to Existing Water Main $ 2,000.00 EACH $ - Ductile Iron Watermain, CL 52, 6 Inch Dia $ 65.00 LF $ - Ductile Iron Watermain, CL 52, 8 Inch Dia $ 85.00 LF $ - Ductile Iron Watermain, CL 52, 10 Inch Dia $ 103.00 LF $ - Ductile Iron Watermain, CL 52, 12 Inch Dia. $ 125.00 LF $ - Gate Valve, 6 inch Dia $ 250.00 EACH $ - Gate Valve, 8 Inch Dia $ 380.00 EACH $ - Gate Valve, 10 Inch Dia $ 425.00 EACH $ - Gate Valve, 12 Inch Dia $ 500.00 EACH $ - Fire Hydrant Assembly, with Guard Posts $ 3,000.00 EACH $ - Fire Hydrant Assembly, without Guard Posts $ 2,500.00 EACH $ - Air-Vac, 8 Inch Dia $ 6,000.00 EACH $ - Air-Vac,10 Inch Dia $ 7,500.00 EACH $ - Air-Vac, 12 Inch Dia $ 12,000.00 EACH $ - Pressure Reducing Valve Assembly, 8 In. Dia $ 3,800.00 EACH $ - Pressure Reducing Valve Assembly, 10 In. Dia $ 4,200.00 EACH $ - Pressure Reducing Valve Assembly, 12 In. Dia $ 5,000.00 EACH $ - Valve Marker Post $ 350.00 EACH $ - WRITE-IN-ITEMS $ - $ - $ - $ - $ - Subtotal $ - CONSTRUCTION CALCULATION WORKSHEET SANITARY SEWER Public Improvements Description Unit Price Unit Quantity Cost Connection to Existing Sewer Main $ - EACH $ - Clean Outs $ 500.00 EACH $ - Grease Interceptor, 500 gallon $ 6,000.00 EACH 1 $ 6,000.00 Grease Interceptor, 1000 gallon $ 10,000.00 EACH $ - Grease Interceptor, 1500 gallon $ 15,000.00 EACH $ - Side Sewer Pipe, PVC. 4 Inch Dia $ 8.00 LF $ - Side Sewer Pipe, PVC. 6 Inch Dia $ 12.00 LF $ - Sewer Pipe, PVC, 8 inch Dia $ 33.00 LF $ - Sewer Pipe, PVC, 12 Inch Dia $ 41.00 LF $ - Sewer Pipe, PVC, ____ Inch Dia $ - LF $ - Lift Station (Entire System) $ - LS $ - Manhole, 48 Inch Dia $ 3,000.00 EACH $ - for additional depth over 4 feet/per foot $ 532.00 FEET $ - Manhole, 54 Inch Dia $ 3,500.00 EACH $ - for additional depth over 4 feet/per foot $ 532.00 FEET $ - Manhole, 60 Inch Dia $ 3,700.00 EACH $ - for additional depth over 4 feet/per foot $ 532.00 FEET $ - Manhole, 72 Inch Dia $ 4,000.00 EACH $ - for additional depth over 4 feet/per foot $ 625.00 FEET $ - Manhole, 96 Inch Dia $ 5,000.00 EACH $ - for additional depth over 4 feet/per foot $ 625.00 FEET $ - Outside Drop $ - LS $ - Inside Drop $ - LS $ - Pipe, C-900 $ 90.00 LF $ - Pipe, High Density Water Pipe (HDWP) $ 160.00 LF $ - WRITE-IN-ITEMS $ - $ - $ - $ - $ - $ - Subtotal $ 6,000.00 CONSTRUCTION CALCULATION WORKSHEET LANDSCAPING & VEGETATION Include Public Improvements & Private Development Description Unit Price Unit Quantity Cost Street Trees $ 500.00 EACH $ - Root Barrier EACH $ - Median Landscaping $ - LS $ - Right-of-Way Landscaping $ - LS $ - Wetland Landscaping $ - LS $ - Private Landscaping $ - LS $ - WRITE-IN-ITEMS $ - $ - $ - $ - $ - $ - Subtotal $ - SUBTOTAL OF ALL PAGES $ 35,997.50 MOBILIZATION 10%: $ 3,599.75 CONTINGENCY 15%: $ 5,399.63 GRANDTOTAL: $ 44,996.88 Stormwater Management Report June 20, 2017 Village Community Services Parking Lot Resurfacing Phase 1 & 2 Prepared for: Tami Wierman Village Community Services 3210 Smokey Point Drive Suite 200 Arlington, WA 98223 (360) 653-7752 Prepared by: TerraVista NW LLC C o n s u l t i n g E n g i n e e r s 526 N West Ave, #18 www.TerraVistaNW.com Arlington, WA 98223 (425) 422-0840 TerraVista NW, LLC Stormwater Management Report Table of Contents Project Overview ................................................................................................................................................ 2 Site Location .................................................................................................................................................. 2 Code Compliance ........................................................................................................................................... 3 Executive Summary ........................................................................................................................................... 3 Existing Conditions ............................................................................................................................................ 3 Description ..................................................................................................................................................... 3 Pervious / Impervious Area ............................................................................................................................ 3 Soils ................................................................................................................................................................ 3 Developed Conditions ........................................................................................................................................ 4 Description ..................................................................................................................................................... 4 Pervious / Impervious Area ............................................................................................................................ 4 Minimum Stormwater Management Requirements ........................................................................................... 5 Overview of Minimum Requirements ............................................................................................................ 5 1-Preparation of Stormwater Site Plans ......................................................................................................... 6 2-Construction Stormwater Pollution Prevention Plan (SWPPP) .................................................................. 6 3-Source Control of Pollution ........................................................................................................................ 6 4-Preservation of Natural Drainage Systems and Outfalls ............................................................................. 6 5-Onsite Stormwater Management................................................................................................................. 7 6-Runoff Treatment ...................................................................................................................................... 10 7-Flow Control ............................................................................................................................................. 10 8-Wetland Protection.................................................................................................................................... 10 9-Operation and Maintenance ...................................................................................................................... 10 Appendix A ....................................................................................................................................................... A Operation and Maintenance .......................................................................................................................... A (170103) VCS Parking Lot Ph1&2 Page 1 June 20, 2017 TerraVista NW, LLC Stormwater Management Report Project Overview Site Location Project is located at 3210 Smokey Point Drive, Arlington, WA 98223 (170103) VCS Parking Lot Ph1&2 Page 2 June 20, 2017 TerraVista NW, LLC Stormwater Management Report Code Compliance The project will comply with Arlington Design and Construction Standards, dated July 2008, and the Arlington Municipal Code (AMC). Arlington has adopted the 2012/14 Stormwater Management Manual for Western Washington (SWMMWW) as the Stormwater Guidelines. Executive Summary The project encompasses removal and replacement of the existing asphalt in the parking lot. The project is partially funded through a CDBG grant as well as other funding sources. Due to the stringent requirements of the CDBG grant, the project had to be separated into two phases, for funding tracking purposes. Each phase will be bid separately, however, the entire project is being permitted at the same time. The project will comply with Minimum Requirement 1-5, as the project is able to claim a â€œPavement Maintenanceâ€ exception under DOE Volume I, Section 2.2. The east parking lot currently drains to the adjacent parcel owned by the Stillaguamish Tribe. The catch basin located at the SW corner of the Tribe building does not function well. It is presumed that the infiltration system has been clogged with debris, and/or the vegetation over the infiltration system has impacted it through root intrusion. To provide a viable drainage path, Phase 2 of the project will install an infiltration system on the VCS parcel. Existing Conditions Description The existing site is a fully developed site with a commercial building and adjacent parking lot. The site is comprised of two parcels. Pervious / Impervious Area Pervious Areaâ€¦â€¦â€¦â€¦â€¦.â€¦0.139 acres Buildingâ€¦â€¦â€¦â€¦â€¦â€¦..........0.133 acres Ph 1 Imp. Areaâ€¦â€¦â€¦â€¦â€¦â€¦0.240 acres Ph 2 Imp. Areaâ€¦â€¦â€¦â€¦â€¦â€¦0.188 acres TOTAL 0.700 acres Soils A soils report was not prepared for the site due to the maintenance nature of the work. However for reference, a soils report was prepared for the Community Transit transfer station very near the site. Per that report, soils are typically recessional outwash sand with secondary silt and gravel. The USGS classifies the soil as fine sandy loam material, which is consistent with the soil in the Smokey Point Area. The CT Transfer Station soils report identifies the design soil infiltration rate as 2 in/hr. (170103) VCS Parking Lot Ph1&2 Page 3 June 20, 2017 TerraVista NW, LLC Stormwater Management Report Developed Conditions Description Proposed improvements will include removal and replacement of the asphalt surfacing, as well as installing an infiltration system with Phase 2. Phase 1 drainage will utilize the existing storm drain system in the parking area. Pervious / Impervious Area Pervious Areaâ€¦â€¦â€¦â€¦â€¦.â€¦0.139 acres Buildingâ€¦â€¦â€¦â€¦â€¦â€¦..........0.133 acres Ph 1 Imp. Areaâ€¦â€¦â€¦â€¦â€¦â€¦0.240 acres Ph 2 Imp. Areaâ€¦â€¦â€¦â€¦â€¦â€¦0.188 acres TOTAL 0.700 acres (170103) VCS Parking Lot Ph1&2 Page 4 June 20, 2017 TerraVista NW, LLC Stormwater Management Report Minimum Stormwater Management Requirements Overview of Minimum Requirements Minimum requirements 1-5 shall apply to the project. (170103) VCS Parking Lot Ph1&2 Page 5 June 20, 2017 TerraVista NW, LLC Stormwater Management Report 1-Preparation of Stormwater Site Plans Stormwater site plans were prepared in accordance with Volume I, Chapter 3 of the SWMMWW. 2-Construction Stormwater Pollution Prevention Plan (SWPPP) A SWPPP narrative has been prepared and is included in the plan set. 3-Source Control of Pollution The project will not pose any source of pollution for the site. The site is not considered a high use site. The SWPPP provided will address the source control of pollution during the construction phase. 4-Preservation of Natural Drainage Systems and Outfalls Existing onsite drainage flows to infiltration systems. Drainage will continue to flow to the onsite storm drain systems, therefore, preservation of natural drainage systems and outfall is being met. (170103) VCS Parking Lot Ph1&2 Page 6 June 20, 2017 TerraVista NW, LLC Stormwater Management Report 5-Onsite Stormwater Management (170103) VCS Parking Lot Ph1&2 Page 7 June 20, 2017 TerraVista NW, LLC Stormwater Management Report The project will infiltrate 100% of the stormwater, therefore the LID standard is being met. The Phase 1 Parking Lot will drain to the existing infiltration system, which infiltrates 100% of the stormwater. Due to the failure of the existing storm drain system for the Phase 2 lot, Phase 2 will utilize a newly constructed infiltration system with the following parameters. The Phase 2 infiltration system was modeled using just the impervious area of the parking area. The facility is designed to infiltrate 100% of the stormwater, a predeveloped basin was not necessary for program input, as there will not be a compliance comparison with predeveloped flows. (170103) VCS Parking Lot Ph1&2 Page 8 June 20, 2017 TerraVista NW, LLC Stormwater Management Report The output screen indicates that 99.91% of the stormwater infiltrates, which is technically less than 100%. However, it is statistically insignificant. Additionally, the facility length would have to grow to a length of 100â€™ to result in the WWHM2012 program registering 100% infiltration; which is an increase in 54% increase in facility size for only a 0.09% increase in infiltration. It is presumed to be a quirk of the WWHM program, and again statistically insignificant for the facility. In the unlikely event that stormwater ponds at the inlet, it will simply be parking lot storage until the infiltration system catches up. No offsite flows would be anticipated nor would there be potential damage to structures. Pretreatment for the infiltration system will include an oil/water separator to remove floatables, debris, and grit prior to discharge to the infiltration media. (170103) VCS Parking Lot Ph1&2 Page 9 June 20, 2017 TerraVista NW, LLC Stormwater Management Report 6-Runoff Treatment Not required 7-Flow Control Not required 8-Wetland Protection No wetlands are present on the site or within the adjacent downstream area. 9-Operation and Maintenance Operation and maintenance procedures are included in Appendix A. (170103) VCS Parking Lot Ph1&2 Page 10 June 20, 2017 TerraVista NW, LLC Stormwater Management Report Appendix A Operation and Maintenance (170202) Lexus of Seattle â€“ Parking Lot June 20, 2017 TerraVista NW, LLC Operation and Maintenance Procedures Maintenance Standards â€“ Catch Basins Maintenance Defect Conditions When Maintenance Is Needed Results Expected Component When Maintenance Is Performed General Trash and Debris Trash or debris which is located immediately No Trash or debris in front of the catch basin opening or is located immediately in blocking inletting capacity of the basin by front of catch basin or more than 10%. on grate opening. Trash or debris (in the basin) that exceeds 60 No trash or debris in percent of the sump depth as measured from the the bottom of basin to invert of the lowest catch basin. pipe into or out of the basin, but in no case less than a minimum of six inches clearance from the debris surface to the invert of the lowest pipe. Trash or debris in any inlet or outlet pipe Inlet and outlet pipes blocking more than 1/3 of its height. free of trash or debris. Dead animals or vegetation that could No dead animals or generate odors that could cause complaints vegetation present or dangerous gases (e.g., methane). within the catch basin. Sediment Sediment (in the basin) that exceeds 60 No sediment in the percent of the sump depth as measured from catch basin the bottom of basin to invert of the lowest pipe into or out of the basin, but in no case less than a minimum of 6 inches clearance from the sediment surface to the invert of the lowest pipe. (170103) VCS Parking Lot Page A1 June 20, 2017 TerraVista NW, LLC Operation and Maintenance Procedures Maintenance Defect Conditions When Maintenance Is Needed Results Expected Component When Maintenance Is Performed Structure Damage Top slab has holes larger than 2 square Top slab is free of to Frame and/or inches or cracks wider than 1/4 inch holes Top Slab (Intent is to make sure no material is running and cracks into basin). Frame not sitting flush on top slab, i.e., Frame is sitting flush separation of more than 3/4 inch of the frame on the riser rings or top from the top slab. Frame not securely slab and firmly attached attached. Fractures or Cracks Maintenance person judges that structure is Basin replaced or in Basin unsound. repaired to design Walls/Bottom standards. Grout fillet has separated or cracked wider Pipe is regrouted and than 1/2 inch and longer than 1 foot at the secure at basin wall. joint of any inlet/outlet pipe or any evidence of soil particles entering catch basin through cracks. Settlement/ If failure of basin has created a safety, Basin replaced or Misalignment function, or design problem. repaired to design standards. Vegetation Vegetation growing across and blocking No vegetation blocking more opening to basin. than 10% of the basin opening. Vegetation growing in inlet/outlet pipe joints No vegetation or root that is more than six inches tall and less than growth present six inches apart. (170103) VCS Parking Lot Page A2 June 20, 2017 TerraVista NW, LLC Operation and Maintenance Procedures Maintenance Defect Conditions When Maintenance Is Needed Results Expected Component When Maintenance Is Performed Contamination and See "Detention Ponds" (No. 1). No pollution present. Pollution Catch Basin Cover Not in Place Cover is missing or only partially in place. Catch basin cover is Cover Any open catch basin requires maintenance. closed Locking Mechanism cannot be opened by one Mechanism opens with Mechanism Not maintenance person with proper tools. Bolts proper tools. Working into frame have less than 1/2 inch of thread. Cover Difficult to One maintenance person cannot remove lid Cover can be removed Remove after applying normal lifting pressure. by one maintenance (Intent is keep cover from sealing off access person. to maintenance.) Ladder Latter Rungs Ladder is unsafe due to missing rungs, not Ladder meets design Unsafe securely attached to basin wall, standards and allows misalignment, rust, cracks, or sharp edges. maintenance person safe access. Metal Grates Grate Opening Grate with opening wider than 7/8 inch. Grate opening meets (If Applicable) Unsafe design standards. Trash and Debris Trash and debris that is blocking more than Grate free of trash and 20% of grate surface inletting capacity. debris. Damaged or Grate missing or broken member(s) of the Grate is in place and Missing grate. meets design standards. (170103) VCS Parking Lot Page A3 June 20, 2017 TerraVista NW, LLC Operation and Maintenance Procedures Maintenance Standards â€“ Catch Basin Inserts Table V-4.5.2(18) Maintenance Standards - Catchbasin Inserts Maintenance Defect Conditions When Maintenance Is Results Expected When Component Needed Maintenance is Performed Sediment When sediment forms a cap over the No sediment cap on the insert Accumulation insert media of the insert and/or media and its unit. unit. Trash and Debris Trash and debris accumulates on Trash and debris removed Accumulation insert unit creating a from insert unit. Runoff freely blockage/restriction. flows into catch basin. Media Insert Not Effluent water from media insert has Effluent water from media Removing Oil a visible sheen. insert is free of oils and has no visible sheen. General Media Insert Water Catch basin insert is saturated with Remove and replace media insert. Saturated water and no longer has the capacity to absorb. Media Insert-Oil Media oil saturated due to Remove and replace media Saturated petroleum spill that drains into catch insert. basin. Media Insert Use Media has been used beyond the Remove and replace media at Beyond Normal typical average life of media insert regular intervals, depending on Product Life product. insert product. (170103) VCS Parking Lot Page A4 June 20, 2017 TerraVista NW, LLC Operation and Maintenance Procedures Maintenance Standards â€“ Oil/Water Separator Table V-4.5.2(16) Maintenance Standards - Baffle Oil/Water Separators (API Type) Maintenance Defect Condition When Maintenance Is Results Expected When Component Needed Maintenance is Performed Monitoring Inspection of discharge water for Effluent discharge from vault obvious signs of poor water should be clear without thick quality. visible sheen. Sediment Sediment depth in bottom of vault No sediment deposits on vault Accumulation exceeds 6-inches in depth. bottom that would impede flow through the vault and reduce separation efficiency. Trash and Debris Trash and debris accumulation in Trash and debris removed from Accumulation vault, or pipe inlet/outlet, vault, and inlet/outlet piping. floatables and non-floatables. Oil Accumulation Oil accumulations that exceed 1- Extract oil from vault by vactoring. General inch, at the surface of the water. Disposal in accordance with state and local rules and regulations. Damaged Pipes Inlet or outlet piping damaged or Pipe repaired or replaced. broken and in need of repair. Access Cover Cover cannot be opened, Cover repaired to proper working Damaged/Not corrosion/deformation of cover. specifications or replaced. Working Vault Structure Vault replaced or repairs made so Damage - Includes that vault meets design Cracks in Walls See â€œCatch Basinsâ€ (No. 5) specifications and is structurally Bottom, Damage to sound. (170103) VCS Parking Lot Page A5 June 20, 2017 TerraVista NW, LLC Operation and Maintenance Procedures Frame and/or Top Cracks wider than 1/2-inch at the Vault repaired so that no cracks Slab joint of any inlet/outlet pipe or exist wider than 1/4-inch at the evidence of soil particles entering joint of the inlet/outlet pipe. through the cracks. Baffles Baffles corroding, cracking, Baffles repaired or replaced to warping and/or showing signs of specifications. failure as determined by maintenance/inspection person Access Ladder Ladder is corroded or Ladder replaced or repaired and Damaged deteriorated, not functioning meets specifications, and is safe properly, not securely attached to to structure wall, missing rungs, use as determined by inspection cracks, and misaligned. personnel. (170103) VCS Parking Lot Page A6 June 20, 2017 SITE â€œ â€ VILLAGE COMMUNITY TerraVista NW LLC SERVICES Consulting Engineers Plotted: Jul 14, 2017 - 11:03am Eric T:\TVNW\Projects\170103 VCS Parking Lot (Arlington)\Plans\Phase 1\VCS_P-CIVIL-Ph1.dwg Layout Name: C1-GEN NOTES â€™ VILLAGE COMMUNITY TerraVista NW LLC SERVICES Consulting Engineers Plotted: Jul 14, 2017 - 11:03am Eric T:\TVNW\Projects\170103 VCS Parking Lot (Arlington)\Plans\Phase 1\VCS_P-CIVIL-Ph1.dwg Layout Name: C2-SWPPP NOTES 0 10 10 Scale in Feet VILLAGE COMMUNITY TerraVista NW LLC SERVICES Consulting Engineers Plotted: Jul 14, 2017 - 11:04am Eric T:\TVNW\Projects\170103 VCS Parking Lot (Arlington)\Plans\Phase 1\VCS_P-CIVIL-Ph1.dwg Layout Name: C3-SWPPP 0 10 10 Scale in Feet VILLAGE COMMUNITY TerraVista NW LLC SERVICES Consulting Engineers Plotted: Jul 14, 2017 - 11:04am Eric T:\TVNW\Projects\170103 VCS Parking Lot (Arlington)\Plans\Phase 1\VCS_P-CIVIL-Ph1.dwg Layout Name: C4-SITE PLAN VILLAGE COMMUNITY TerraVista NW LLC SERVICES Consulting Engineers Plotted: Jul 14, 2017 - 11:04am Eric T:\TVNW\Projects\170103 VCS Parking Lot (Arlington)\Plans\Phase 1\VCS_P-CIVIL-Ph1.dwg Layout Name: C5-DETAILS â€œ â€ SITE VILLAGE COMMUNITY TerraVista NW LLC SERVICES Consulting Engineers Plotted: Jul 14, 2017 - 11:09am Eric T:\TVNW\Projects\170103 VCS Parking Lot (Arlington)\Plans\Phase 2\VCS_P-CIVIL-Ph2.dwg Layout Name: C1-GEN NOTES â€™ VILLAGE COMMUNITY TerraVista NW LLC SERVICES Consulting Engineers Plotted: Jul 14, 2017 - 11:09am Eric T:\TVNW\Projects\170103 VCS Parking Lot (Arlington)\Plans\Phase 2\VCS_P-CIVIL-Ph2.dwg Layout Name: C2-SWPPP NOTES 0 10 10 Scale in Feet VILLAGE COMMUNITY TerraVista NW LLC SERVICES Consulting Engineers Plotted: Jul 14, 2017 - 11:10am Eric T:\TVNW\Projects\170103 VCS Parking Lot (Arlington)\Plans\Phase 2\VCS_P-CIVIL-Ph2.dwg Layout Name: C3-SWPPP 0 10 10 Scale in Feet VILLAGE COMMUNITY TerraVista NW LLC SERVICES Consulting Engineers Plotted: Jul 14, 2017 - 11:10am Eric T:\TVNW\Projects\170103 VCS Parking Lot (Arlington)\Plans\Phase 2\VCS_P-CIVIL-Ph2.dwg Layout Name: C4-PAVING 0 10 10 Scale in Feet 1 -- VILLAGE COMMUNITY TerraVista NW LLC SERVICES Consulting Engineers Plotted: Jul 14, 2017 - 11:11am Eric T:\TVNW\Projects\170103 VCS Parking Lot (Arlington)\Plans\Phase 2\VCS_P-CIVIL-Ph2.dwg Layout Name: C5-DRAINAGE From: Launa Peterson To: "Eric Scott" Cc: Nova Heaton Subject: 1st Round Review Comments Date: Thursday, July 13, 2017 3:37:00 PM Attachments: image003.jpg Eric, Below are the 1st round review comments for the Village Community parking lot: 1. Provide more detailed information about the drainage of the parking lot. High/Low break lines. Clear direction for the contractor to build the parking lot and ensure surface water drains correctly. 2. The note for the oil water separator needs to designate 24" (the quotes are missing). 3. Resubmittal will require 2 plan sets. Contact Nova Heaton 360-403-3437 or nheaton@arlingtonwa.gov should you have any questions or concerns. Launa Peterson, CPT Permit Technician City of Arlington 18204 59th Avenue NE Arlington, WA 98223 (located inside the Airport Office Building) 360-403-3551 ced@arlingtonwa.gov Email Green Logo !!"#$%&''() *+,$-. /$01"-2 )#3&*$0(-4"/ )# 567 8$--" 0*"9 5675::;; < 9$0*.$)($=1>? @ 567ABACAD -! )#*&)=9E@ F B7;7 G- /,/&** H7 I <JI J @I K6 $- /0L*$--". 0*")MN/&' COPQ $'&.$")R$S!"/$$T 0* )#"0SU"!* V6W7 I<EI N< F ,'&2$+1& )*- .$ X B: %G X;;W: F @ KY; CW; %Z>13G8G 5;;[7: 3"()"?!"/2 1"-/$!\ RR-$003$#"!$0/- S* &)ZM)$-"'$ ZM)$-1U&)$ ]&) )# I<F F ,>Z^G_1Z833G <EZ*U$- %Z>>`8_ 1-&4$00 &)"!,$-. /$0 ,G%G, G% X7;7; "*$ )0S$/* &)8+S$$0/- S* &),/U$R(!$R"*$%&'S!$*$R"*$)0S$/*&- ,*"*(0 E @ 9NZ9_ ,(a#-"R$SS-&.$R < @ < @?`3 %Z,8`%8Z I @ N )4 !*-"* &)"SS-&.$R I @ I @?`3 %3G`? 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