Loading...
The URL can be used to link to this page
Your browser does not support the video tag.
Home
My WebLink
About
Permit File BLD-2021-0652 4118 Brant Circle
11 Y C} City of Anacortes Invoice/Permit#: BLD-2021-0652 ' � � 904 6th Street Applied date: 08/02/2021 P.O.Box 547 Issue date: 08/26/2021 '0: Anacortes, WA 98221-0547 AA Expire date: 02/22/2023 (360) 293-1901 Job Address: 4118 BRANT CIR Permit Type: Single Family Residence Permit ANACORTES WA 98221 Project: APN: P79603 Remarks: NEW SFR Owner: MICHAEL&MARRY TUTTY Contractor: KEYSTONE BUILDING SERVICES LLC Address: 2442 NW MARKET ST Address: 1007 8TH ST STE 488 SEATTLE WA 98107 ANACORTES WA 98221-4120 Phone: (425)218-2888 Phone: (360)588-4189 License#: General Information: Fees: #of Range Hoods 1 Plan Application Fee 200.00 #of Clothes Dryers 1 Building Permit Fee 3,328.75 New or Replaced Hard Surface 3857 Plan Review Fee 2,163.69 Use Zone R2A Mechanical Permit Fees 108.65 #of Heat Pumps<= 3 Hp 1 Plumbing Permit Fee 174.00 #of Gas Fireplace 1 State Building Code Fee Resi 6.50 #of Gas Piping 1 Sewer Inspection Fee 52.14 Building Valuation 520000 Storm Drain GFC-Residential 1,746.97 Occupancy Group it-1 Sewer GFC-Residential 9,331.86 1st Floor Square Footage 1354 Park Impact Fee 615.00 2nd Floor Square Footage 606 Traffic Impact Fee 2,817.69 Garage Square Footage 645 Non Sprinklered SFR Fire Fee 102.58 Deck Square Footage 440 EMS Impact Fee 363.70 Lot Area 11761 SFR/duplex: site plan/design 60.00 Stormwater Review 308.56 Stove, Appliance 1 #of Tubs, bath 3 Total Calculated: 21,380.09 #of Water Closets(Toilets) 3 Deposits/Receipts: 0.00 #of Showers 2 #of Dishwashers 1 Total Due: 21,380.09 #of Hand Sinks 4 #of Kitchen Sinks 1 #of Clothes Washers 1 #_of_Gas Outlets 4 #of utility Sinks 1 #of Water Piping 2 #of Hose Bibs 3 #of Ventilation Fans 4 #of Water Heaters 1 Flood plain development N 1 Y City of Anacortes Invoice/Permit#: BLD-2021-0652 904 6th Street Applied date: 08/02/2021 P.O.Box 547 Issue date: 08/26/2021 _ ;' 0, Anacortes, WA 98221-0547 (360) 293-1901 Expire date: 02/22/2023 The issuance or granting of this permit shall not be construed to be a permit for,or approval of, any violation of this Code or any other ordinance or order of the City, of any state or federal law, or of any order, proclamation, guidance advice or decision of the Governor of this State. To the extent the issuance or granting of this permit is interpreted to allow construction activity during any period of time when such construction is prohibited or restricted by any state or federal law, or order, proclamation, guidance advice or decision of the Governor of this State, this permit shall not authorize such work and shall not be valid. The building official is authorized to prevent occupancy or use of a structure where in violation of this Code, any other City ordinances of this jurisdiction or any other ordinance or executive order of the City,or of any state or federal law,or of any order, proclamation, guidance advice or decision of the Governor. The building official is authorized to suspend or revoke this permit if it is determined to be issued in error or on the basis of incorrect, inaccurate or incomplete information, or in violation of any City ordinance, regulation or order, state or federal law, or any order, proclamation, guidance or decision of the Governor.This permit becomes null and void if work or construction authorized is not commenced within 180 days or if construction work is suspended or abandoned for a period of 180 days at any time after work is commenced. I have read and examined this application and know the same to be true and correct. SIGNATURE OF OWNER OR AUTHORIZED AGENT ISSUED BY 1. G_ PLANNING, COMMUNITY, & ECONOMIC DEVELOPMENT DEPARTMENT Mailing Address: P.O. Box 547, Anacortes, WA 98221 Office Location:904 6th Street, Anacortes WA 98821 Phone: (360)293 1901 Residential Building Permit Application Submittal Packet New Single Family Residences (SFR) Duplexes Additions and Remodels(SFR& Duplex) Accessory Dwelling Units Manufactured Homes Residential decks and retaining walls • FORM BP-1: RESIDENTIAL BUILDING PERMIT APPLICATION • 1. PROPERTY INFORMATION Project Address(Street,Suite#): Assessor Parcel Number: S Zoning Designation: Lot area (size): Subdivisjon/Lot#: S"1-7 Hi/we]) � � �� Nr( � sq.ft. 2. TYPE OF PROJECT ENew SFR ❑ New Accessory Dwelling Unit: ❑ Deck/porch (new/repair) ❑ New Duplex ❑ Attached to Primary Unit ❑ Interior remodel n Detached from Primary Unit ❑ New Addition to SFR ❑ Garage,carport or accessory building ❑ Retaining wall or duplex (new/repair) ❑ Other: Project Summary: lv vJ p,V STp�v C 77 e A) c)f j— l/� —Siv r�� iC-�3 i l 7U btit -Cv ° T311---C-1 - r tyz-(1-G Project Valuation: $ 5g0)(XO 3. PROPERTY OWNER INFORMATION Name: Phone: Addre;s(Street,City,State,Zip: • Email Address: S " Tt , w q qt i D 4. CONTRACTOR INFORMATION Name:* t Phone:61, z%5_'—i) Contrbctor's Business Licensek State License#: City License#: u 131- *All Contractors&Subcontractors must have a valid City \( e)S 1857571.P WC , (Q.03 32 3 3 i a of Anacortes business license prior to doing work in the Expiration Date: Expiration Date: City. _ ,- 0-00-1 -31-30g-i Address(StSreeet,City,State,Zip): Email Address: map +-41- P_CL/5}--AN.e_b,Li Page 1 of 19 Res.Building Permit Application Submittal Checklist Updated March 12,2021 PLANNING, COMMUNITY, & ECONOMIC DEVELOPMENT DEPARTMENT Mailing Address: P.O. Box 547, Anacortes, WA 98221 Office Location:904 6th Street, Anacortes WA 98821 Y1 'S; '' Phone: (360)293-1901 5. CONTACT PERSON Select one person the city will contact for anything ❑ Applicant ElProperty Owner LJ Contractor related to this project: r-i Other(lict helnw) Name: �I 'l C `T 1-U 0 Phone: (3 0 C) 1;T g—2( 8 / Address(Street,City,State,Zip): Email Address: 1 v o -q— (3-i'�� ci-7 t/G(-(. S -6,6 i.c-i (4 i kul f V'G, Co ble-1 D —Ti XA-16)-3 6. LENDER INFORMATION RCW 19.27.095 requires the City to obtain information with regard to lenders. If there are no lenders involved with your project, write"no lenders"on the Name Line below. 1 Name: 1'Jp-Fe1A Phone: 3lr)E)__`J5 7? 22S Address/(Street,City,State,Zip): �� Email Address: �017 W,m^AerCiciA Igve.7 oe\-eS, 4.))/J 2.53 I h:jLc(-`,-csViGArl p(..a.cT"-d.«>-* 7. ACKNOWLEDGEMENTS & SIGNATURE Read and initial each of the following statements prior to signing this application: I understand that when a building permit application is taken in over the counter it does not mean '"-() the application has been deemed technically complete and sufficient for staff review. I understand that if I submit incomplete, inaccurate, and/or erroneous information it will take the City longer to process my permits. I understand and acknowledge that I could be responsible for providing as-built drawings(on paper or electronically) as part of the project's certificate of occupancy process. \.,.\,. I understand and acknowledge that Special Inspections could be required as part of my project, and if needed I will be required to pay for the cost of these inspections. ' I understand and acknowledge that financial securities could be required as part of the work I am completing and I agree to provide the items needed for the City to calculate these securities and to provide the securities themselves. I understand that if permits are reviewed concurrently such as design review, site plan,traffic concurrency, etc., any required revisions to one permit may affect the entire plan set and could f add costs and time to the project. Res.Building Permit Application Submittal Checklist Updated March 12,2021 Page 2 of 19 PLANNING, COMMUNITY, & ECONOMIC DEVELOPMENT DEPARTMENT I` Mailing Address: P.O. Box 547, Anacortes, WA 98221 � � Office Location:904 6th Street, Anacortes WA 98821 "` rw Phone: (360)293-1901 I hereby declare that I am either the owner of the property listed on this application or the owner of this property has authorized me to be their representative to act for them. I also declare under penalty of perjury under the laws of the State of Washington that all of the statements and answers contained herein, and the information submitted with this application form is in all respects,true, correct,and complete to t e best of knowledge and belief. ityeti— 07) d'°< ' Signature Date )2--..63b emir Printed Name Res.Building Permit Application Submittal Checklist Updated March 12,2021 Page 3 of 19 :I4' PLANNING, COMMUNITY, &ECONOMIC DEVELOPMENT DEPARTMENT Mailing Address: P.O. Box 547, Anacortes, WA 98221 Office Location:904 6th Street, Anacortes WA 98821 '` f� , Phone: (360)293-1901 SUBMITTAL CHECKLIST x o Residential Building Permit ® o _ w a Submittal Requirement Checklist N -a 4 a ou See pages 2-3 of this handout for information about each 3 cu -� a, (Liw E v c E p E Q u submittal item listed below. -- , Q a 0 s 2 Z tt i Residential Building Permit Application Form X X X X X t- (FORM BP-1—attached) -Structure&Site Information Form X X X X X ;/ (FORM BP-2—attached) Mechanical &Plumbing Fixtures Form X X X v/ (FORM BP-3—attached) Architectural Plans X X X X X ' (requirements fisted on FORM BP-4-attached) Stormwater Management Minimum Requirements Determination X X X X 17 (FORM BP-5,attached) ./ Stormwater Site Plan X X X X Site Plan & Landscape Plans X X X X X y-" (requirements listed on Form BP-6) iy-` Structural Plans&Calculations X X X X X Energy Code Plans& Forms X X Manufacturer's Specifications/Cut Sheets X Copy of recorded survey X X X X — Technical Reports X X X X - c- Other Required Permits X X X X X ADU Affidavit of Owner Occupancy(signed) X - Submittal Information Fees Send applications in PDF format with a file and message Once we receive your application, we will size no greater than 30 MB. Please review our Electronic contact you about payment of the Submittal Guidelines for more information. An email required deposit, if any. with a link to a file share site (Dropbox, Google Drive, OneDrive, etc.) is acceptable. Permit fees are paid prior to building permit issuance. Email:buildingnermitC citvofanacortes.org Incomplete applications will not be processed. Res.Building Permit Application Submittal Checklist Updated March 12,2021 Page 4 of 19 i 1�y o PLANNING, COMMUNITY, & ECONOMIC DEVELOPMENT DEPARTMENT '{' Mailing Address: P.O. Box 547, Anacortes, WA 98221 " ' Office Location:904 6th Street, Anacortes WA 98821 Phone: (360)293-1901 NI,E9Vt,- REQUIRED SUBMITTAL INFORMATION Additional details on certain submittal items is provided below to ensure Applicants are fully aware what City staff will be looking for when an application is submitted to the City. FORMS AND PLANS • FORM BP-1: RESIDENTIAL BUILDING PERMIT APPLICATION FORM. Provides key information about your project, including type of permit you are applying for, and property owner, contractor, and contact information. • FORM BP-2: STRUCTURE AND SITE INFORMATION FORM. Provides key information about the proposed structure, including height,floor areas, fire protection proposed, and asks questions about site characteristics that are used to determine whether your project requires any other information or additional permit applications to be submitted. • FORM BP-3: PLUMBING AND MECHANICAL INFORMATION. Form BP-3 provides space for you to fill in fixture information for plumbing and mechanical appliances and equipment that are included as part of your project. • FORM BP-4:ARCHITECTURAL PLAN REQUIREMENTS. Form BP-4 contains a list of all the items required to be shown on Architectural Plans. • FORM BP-5: STORMWATER MANAGEMENT DETERMINATION FORM. Most development within the City of Anacortes that involves disruption of soils, or construction of buildings, streets, parking lots, etc. requires a Stormwater review. Stormwater review requirements are based on either the amount of soil to be disturbed (grading,vegetation removal), or the amount of hard surface that is created or replaced on a site (building footprint, concrete, asphalt or gravel parking, sidewalk, etc.). Form BP-5 assists you in determining the level of stormwater review(applicable Minimum Requirements) required for your project. • STORMWATER SITE PLAN. The Stormwater Site Plan is the comprehensive report containing all of the technical information and analysis necessary for regulatory agencies to evaluate your project for compliance with stormwater requirements. The level of stormwater review and contents of the Stormwater Site Plan will vary with the type and size of the project, and individual site characteristics. Use Form BP-5 to determine the level of stormwater review and then complete the applicable Stormwater Minimum Requirements Form on the Public Works- Engineering Department Forms website and provide required submittal items/plans. • FORM BP-6: SITE PLANS& LANDSCAPE PLANS. Form BP-6 contains a list of all the items required to be shown on Site and Landscape Plans. • STRUCTURAL PLANS: Plans prepared and stamped by a State of Washington licensed professional structural engineer drawn at a scale approved by the Building Official clearly indicating the information required by the "Permits" section of the currently adopted International Building Code and Chapter 19.27 RCW (State Building Code Act,Statewide amendments), and City submittal forms including: structural members labeled as to size and spacing as well as bracing, blocking, bridging, special connectors,and anchor bolts; cross-section details, as needed,to show typical foundation,floor,wall, ceiling and roof construction; insulation of walls,floors and roof/ceiling; and details of stairs,fireplaces and special construction, if any. Res.Building Permit Application Submittal Checklist Updated March 12,2021 Page 5 of 19 PLANNING, COMMUNITY, & ECONOMIC DEVELOPMENT DEPARTMENT Mailing Address: P.O. Box 547, Anacortes, WA 98221 Office Location:904 6th Street, Anacortes WA 98821 4(6g Phone: (360)293-1901 • STRUCTURAL CALCULATIONS: An analysis of loads, materials, etc., prepared and stamped by a State of Washington licensed professional structural engineer. • ENERGY CODE FORMS: The standard Washington State Energy Office form requesting the information required under Chapter 51-11 WAC detailing building components used to comply with the State Residential or Nonresidential Energy Code,as applicable. • MANUFACTURER'S SPECIFICATIONS/CUT SHEETS: A document that summarized the performance and other technical characteristics of a product, machine, component, material, or subsystem (e.g.,a power supply) in sufficient detail that allows the City to determine the product will be incompliance with applicable codes. • COPY OF RECORDED SURVEY. A survey of your property is needed so that conformance with minimum setback requirements and other development standards can been confirmed and verified on site by the inspectors. Property markers must be visible on your property. If they are not at the time an inspection is requested, you may need to have a new survey completed. OTHER SUBMITTALS DETERMINED ON A CASE-BY-CASE BASIS TECHNICAL REPORTS Following is a list of technical reports that will be required to be submitted to the City when certain circumstances exist on or near a site an Applicant is planning on making improvements to. The general triggers for each of the listed technical reports I provided below: A. CRITICAL AREAS REPORTS: In general, Critical Area reports are required when wetlands and/or streams are located on or near a site. Critical area mitigation plans may also be required, depending on the project proposal. See Anacortes Municipal Code Ch. 17.70 for additional information. B. GEOTECHNICAL REPORT: In general, Geotechnical Reports are required when work is proposed on or near slopes in excess of 15%and/or known landslide hazard areas. See Anacortes Municipal Code Ch. 17.70 for additional information. OTHER PERMITS DETERMINED ON A CASE-BY-CASE BASIS OTHER FORMS Following is a list of other permits that could be required in certain circumstances. The general triggers for each of the listed permits is provided below. A. FILL AND GRADE PERMIT: Grading (importing, exporting,and/or moving material on a site) of more than 50 cubic yards and/or if grading modifies the existing flow of stormwater or groundwater. B. RIGHT-OF-WAY PERMIT: A right-of-way permit is required anytime the public right-of-way is disturbed or obstructed in any way by private development or the general public. Res.Building Permit Application Submittal Checklist Updated March 12,2021 Page 6 of 19 Sixp PLANNING, COMMUNITY, & ECONOMIC DEVELOPMENT DEPARTMENT � Mailing Address: P.O. Box 547, Anacortes, WA 98221 Office Location:904 6th Street, Anacortes WA 98821 \1/4„....., Phone: (360)293-1901 Page left blank intentionally. Res.Building Permit Application Submittal Checklist Updated March 12,2021 Page 7 of 19 „ Ya PLANNING, COMMUNITY, & ECONOMIC DEVELOPMENT DEPARTMENT Mailing Address: P.O. Box 547, Anacortes, WA 98221 Office Location:904 6th Street, Anacortes WA 98821 icovci.j Phone: 360) 293-1901 FORM BP-2.• STRUCTURE AND SITE INFORMATION 1. PROPERTY WHERE WORK IS OCCURRING ADDRESS: ! ( 1 0 13 IZ11-KJ •�- (il h L� PARCEL yy j Nl1MRFRIcI I� 1 L 03 2. DETAILED PROPOSED STRUCTURE INFORMATION Complete the following information as it relates to your project. Mark items that are not applicable with "Ni IA” Structure height: . S _ I/ ti AREA SQUARE FOOTAGE OCCUPANCY GROUP CONSTRUCTION TYPE OCCUPANT LOAD 1st Floor: I 3 cA S'-1 L,t)06 h'tit 6 2nd Floor: (t2 0 () S-F cA)00 rY g-o4 3rd Floor: Basement: Garage: (P �{ t'I S_ Woo a -P UvLG Total deck: `t F, L(J a b Fa-4-114a Total porch: L c Other: p? i -10 , d�9 I �*�fi• CA&1 L- Other: Other: 3. QUESTIONS ABOUT THE PROPOSED STRUCTURE Is a fire sprinkler system being installed? ❑ YES a NO Is a monitored fire alarm being installed? ❑ YES EYN0 Are retaining wall(s) being built? ❑ NO Are structural plans required? ©YES ❑ NO 4. PROJECT SITE INFORMATION A. Is work within the City's right-of-way proposed? If yes,you will be required 0 YES la-NO to submit a right-of-way permit application. If you have already submitted a ROW permit, list the permit number here: B. Is the property located in a flood zone? 0 YES ❑TNO If yes, list the flood zone designation: C. Are there slopes in excess of 15%on or abutting the site? If yes,a 0 YES 0—NO geotechnical report will likely need to be submitted. Res.Building Permit Application Submittal Checklist Updated March 12,2021 Page 8 of 19 y-r PLANNING, COMMUNITY, & ECONOMIC DEVELOPMENT DEPARTMENT Mailing Address: P.O. Box 547, Anacortes, WA 98221 Office Location:904 6th Street, Anacortes WA 98821 N'A `�� Phone: (360)293-1901 D. Are there critical areas or buffers on or abutting(within 300-feet of)the ❑ YES ❑'NO project site? If yes, a critical areas report will likely need to be submitted. E. Is the lot less than 5,000 sq. ft. in area? ❑ YES ❑ NO If yes, your site and building will need to comply with the standards in AMC 19.43.010.C. F. Is your project involving an accessory dwelling unit? ❑ YES D No If yes, your site and building will need to comply with the standards in AMC 19.47. G. Will more than 2-acres be cleared and/or more than 5,000 board feet ❑ YES 1E110 (about 1 log truck load) of timber be harvested? If so you may need to obtain a forest practices permit from DNR. H. Is this project subject to the SEPA process? If yes,you will be required to ❑ YES laN0 submit a SEPA checklist. If you have already completed the SEPA process, list the permit number here: 5. REQUIRED SIGNATURE I hereby declare that I am either the owner of the property listed on this application or the owner of this property has authorized me to be their representative to act for them. I also declare under penalty of perjury under the laws of the State of Washington that all of the statements and answers contained herein, and the information submitted with this application form is in all respects,true, correct, and complete to the best of knowledge and belief. CI\15Signature e Printed Name Res.Building Permit Application Submittal Checklist Updated March 12,2021 Page 9 of 19 L..1\ �� PLANNING, COMMUNITY, & ECONOMIC DEVELOPMENT DEPARTMENT Mailing Address: P.O. Box 547, Anacortes, WA 98221 Office Location:904 6th Street, Anacortes WA 98821 N.i Phone: (360)293-1901 FORM BP-3: PLUMBING AND MECHANICAL FIXTURES MECHANICAL Equipment Type: Appliance/Equipment Information(new and relocated): Total#: Furnace: Gas#: Elec#: BTU: Other#: Wall Heater: Gas#: Elec#: Other:#: Location(s): Gas Water #: Location(s): Heat Pump: Elec#: Other#: Capacity: Air Conditioning: Elec#: Other#: Capacity: Radiant/Hydronic Gas#: Elec It: Other:#: Location(s): Exhaust Fans: Bath#: ._ Laundry#: ` Other: Range Hood: #: ri Location(s): V1 j Fireplace: Gas#: I Elec#: Other:It: Location(s): j Clothes Dryer&Duct: Gas#: i Elec#: Other:#: Location(s): 1 Stove/Range/Oven: Gas#: 1 Elec#: Other:#: Location(s): f Gas Piping/Outlet(s): If: 1 Location(s): Deo-- -b jta (),„„1-\ Boiler Gas#: Elec#: BTUs: Location(s): Other: #: Location(s): IC TOTAL MECHANICAL OUTLETS: PLUMBING Fixture Type(new and relocated): Total#: Fixture Type(new and relocated): Total#: Water Closet(Toilet): '? Refrigerator water supply(for water/ice 1 Kitchen Sink: 1 Pressure Reduction Valve/Pressure Regulator: 'f'Z Q Utility Sink: f Water Service Line: i Tub: . Water Piping: It Hand Sink: 4 Clothes Washer: t Shower: Electric Water Heater: Tank-less? Yes❑ Dishwasher: j Backflow Prevention Assembly: Hose Bib: " Other: t 1 l ¢.r — 1'v,r.((� Croy �aver \ TOTAL PLUMBING FIXTURES: 3,3 Res.Building Permit Application Submittal Checklist Updated March 12,2021 Page 10 of 19 ., �,. PLANNING, COMMUNITY, & ECONOMIC DEVELOPMENT DEPARTMENT r `'' Mailing Address:P.O. Box 547, Anacortes, WA 98221 '` Office Location:904 6th Street, Anacortes WA 98821 `yq Phone: (360)293-1901 FORM BP-4: ARCHITECTURAL PLAN REQUIREMENTS 1. PROPERTY WHERE WORK IS OCCURRING ADDRESS: 1,.tt t 1 g' R i?i-N i GI l ZC L'G PARCEL NUMBER(S) 12 //(ft 03 2. GENERAL INFORMATION This form is intended to assist applicants in creating complete, code compliant architectural plans. Please check the plans you wish to submit to make sure they contain each of the listed items. To the right of the Requirements column is space for you to list the sheet number of the plan set where the listed information is shown. • Minimum Plan Size: 11" x 17" and drawn in an architectural scale. • Architectural plans for structures 4,000 square feet or larger are required to be prepared and stamped by an architect licensed in the State of Washington. • Structural plans must be stamped by a structural engineer licensed in the state of Washington. 3. REQUIREMENTS FOR ALL ARCHITECTURAL PLANS COMPLETE PAGE#ON REQUIREMENTS ? YOUR PLANS Cover(or 1"page) must include: • Site address • Parcel number • Lot number(if applicable) • Lot size • Lot coverage ,i • % impervious surface coverage - Floor plans with existing(if applicable) and proposed building layout with square l', footages and with the use of each room/area labeled. I �-9 Window and door sizes labeled and window ventilation area. Commercial, Multi-Family, and Mixed-Use Structures must also include door and window { ✓` schedules. l Plumbing, duct, and electrical layout. Penetration protection must be shown. Opening headers, size,and material. S ir,.. Cross section details, showing typical foundation,floor,wall,ceiling and roof construction and insulation. '/ f Structural members labeled as to size and spacing as well as bracing, blocking, bridging,special connectors, and anchor bolts. S 1, s . Details documenting energy code compliance. ?;r1; Exterior building elevations demonstrating compliance with applicable structure type design standards(small lot,duplex, or ADU) and maximum building height HO t 41( Res.Building Permit Application Submittal Checklist Updated March 12,2021 Page 11 of 19 G � PLANNING, COMMUNITY, & ECONOMIC DEVELOPMENT DEPARTMENT Mailing Address: P.O. Box 547, Anacortes, WA 98221 aromIlil Office Location:904 6th Street, Anacortes WA 98821 '74,11609w Phone: (360)293-1901 Building height(see AMC 19.42.120 for measurement methods,exceptions and modifications). • Label the building height at the highest point of the structure from the average of the natural topography at the foundation at the front of the building. • Label the average elevation of the natural topography at the front of the building. • Label the elevation at the center of all exterior walls of the proposed building. • For ADUs only,include elevations demonstrating compliance with the height/setback plane(see AMC 19.47.030(C)(6)). .MD/ •P'i/ Special details as needed (i.e.,stairs,fireplaces, special construction). Insulation and insulation values of walls,slab,floors,and roof/ceiling. 195 l Existing and proposed grades with slope of lot shown. �/ tea Res.Building Permit Application Submittal Checklist Updated March 12,2021 Page 12 of 19 Y PLANNING,COMMUNITY,&ECONOMIC DEVELOPMENT DEPARTMENT Mailing Address:P.O. Box 547,Anacortes, WA 98221 Office Location:904 6th Street,Anacortes WA 98821 7•1w� Phone: (360)293-1901 FORM BP-S: STORMWATER MANAGEMENT MINIMUM REQUIREMENTS DETERMINATION 1. PROPERTY WHERE WORK IS OCCURRING ADDRESS: 4-He 5 12n-r PARCEL NUMBER(S) p b 2. GENERAL INFORMATION Most development within the City of Anacortes that involves disruption of soils,or construction of buildings, streets,parking lots,etc.requires a Stormwater review. Stormwater review requirements are based on either the amount of soil to be disturbed(grading,vegetation removal),or the amount of hard surface that is created or replaced on a site(building footprint,concrete,asphalt or gravel parking,sidewalk,etc.) This form is largely targeted for small projects and single family residences. For larger projects and more information please refer to the Anacortes Municipal Code(Chapter 19.76 Stormwater Management)and the latest Washington State Department of Ecology Stormwater Management Manual for Western Washington (Ecology Manual). 3. HARD SURFACE AREA CALCULATION Please calculate your project's hard surface amount;guidance is provided on the next page of this document. Use your project's total hard surface calculation to follow the flow chart(s)in this packet and determine the level of stormwater management required for you project. When determining your permit level or if stormwater thresholds are met or exceeded the entire project must be considered. A project is that portion of a property,properties,or right of way subject to land disturbing activities, new hard surfaces and replaced hard surfaces. The hard surface on your property will determine the storm water utility fees and the stormwater general facility charge. All new or replaced hard surfaces should be accounted for. Below are excerpts from the Anacortes Municipal Code and Ecology Manual that may assist you in preparing this information. "Hard surface area"means an impervious surface,a permeable pavement,or a vegetated roof. "Impervious surface"means a non-vegetated surface area which either prevents or retards the entry of water into the soil mantle as under natural conditions prior to development. A non-vegetated surface area which causes water to run off the surface in greater quantities or at an increased rate of flow from the flow present under natural conditions prior to development. "Replaced impervious surface"means,for structures,the removal and replacement of impervious surfaces down to the foundation. For other impervious surfaces,the removal down to bare soil or base course and replacement. Res.Building Permit Application Submittal Checklist Updated March 12,2021 Page 13 of 19 0_; PLANNING, COMMUNITY, & ECONOMIC DEVELOPMENT DEPARTMENT Mailing Address: P.O. Box 547, Anacortes, WA 98221 Office Location:904 6th Street, Anacortes WA 98821 4' '' Phone: (360)293-1901 Land disturbance Description Total (SF) Total Area of Land disturbing activity ++00 S, Total area converted from vegetation to ToD T lawn or landscaped areas Hard surface area calculation Existing Removed Proposed Proposed Description (SF) (SF) Replaced New (SF) (SF) Non Pollution Generating Hard Surface Area ), 4 a (Sidewalks, paths,patios,etc.) Pollution Generating Hard Surface Area — — 1 3 3 (Driveways, parking areas,etc.) Total Hard Surface Site Size ( 1 ; --( I Existing impervious surface coverage% V (sq.ft. hard surface/site size) Use the information in the above table to navigate the flow chart(s) on the next page and determine the applicable stormwater management minimum requirements for your project. Then complete the applicable Stormwater Minimum Requirements Form on the Public Works - Engineering Department Forms website and provide required submittal items/plans. Check applicable box Minimum Requirements Determination ❑ Minimum Requirements#1-9. Minimum Requirements 111-5. Res.Building PerrtlApplication Submittal Checklist Updated March 1L,2 021 Minimum Requirement#2. Page 14 cf 19 y Q PLANNING, COMMUNITY, & ECONOMIC DEVELOPMENT DEPARTMENT Mailing Address: P.O. Box 547, Anacortes, WA 98221 Office Location:904 6th Street, Anacortes WA 98821 �`1 "Siv. Phone: (360)293-1901 FLOW CHART FOR DETERMINING REQUIREMENTS FOR NEW DEVELOPMENT Start Here Does the site have 35% Yes See Redevelopment Minimum or more of existing ►. Requirements and Flow Chart impervious coverage? (Figure 1-2.4.2). No Does the project convert 34 acres or more of vegetation to Does the project result in lawn or landscaped areas,or 5,000 square feet,or No convert 2.5 acres or more of greater,of new plus ► native vegetation to pasture? replaced hard surface area? \ No Yes Yes Does the project result in 2,000 V square feet,or greater,of new plus All Minimum Requirements replaced hard surface area? apply to the new and replaced hard surfaces and converted Yes No vegetation areas. Does the project have land Minimum Requirements#1 disturbing activities of 7,000 through#5 apply to the new 4 YeS square feet or greater? and replaced hard surfaces and the land disturbed. No s Minimum Requirement#2 applies. Figure 1-2.4.1 Flow Chart for Determining Requirements for 12101 New Development DEPARTMENT OF Revised June2015 ECOLOGY. Please see httpl/Www.ecyvva.gov/copyright.html for copyright notice including permissions, State of Washington limitation of liability,and disclaimer Res.Building Permit Application Submittal Checklist Updated March 12,2021 Page 15 of 19 lT Y o PLANNING, COMMUNITY, &ECONOMIC DEVELOPMENT DEPARTMENT Mailing Address:P.O. Box 547, Anacortes, WA 98221 " ° ' Office Location:904 6th Street, Anacortes WA 98821 7+ ��-jog Phone: ( 293 1901 360) FORM BP-6: SITE PLAN REQUIREMENTS 1. PROPERTY WHERE WORK IS OCCURRING ADDRESS: ` 1T_(1 U D i9Aq_tvT- CA PARCEL NUMBER(S) r %qb%U _a 2. GENERAL INFORMATION This form is intended to assist applicants in creating complete, code compliant site plans. Please check the plans you wish to submit to make sure they contain each of the listed items. To the right of the Requirements column is space for you to list the sheet number of the plan set where the listed information is shown. • Minimum Plan Size: 11"x 17" and drawn in an engineering or architectural scale. 3. INFORMATION REQUIRED ON ALL SITE PLANS COMPLETE? REQUIREMENTS PAGE#ON YOUR PLANS Cover sheet must contain all of the following: • Vicinity Map • Name of the project • Name, address, and telephone number of owner and agent(s) • Name, address, and telephone number of Applicant (if different from the owner) • Zoning designation of the site • Area, in square feet and acreage, of the project site • Reference to the Building Code used • Proposed use • Occupancy group • Construction type • Square footage and height of each individual building • Percent lot coverage • Percent impervious surfaces V,j Scale and North Arrow -3- Property features: Location, identification,and dimensions of all property lines and easements. All easements shown on the title report, Record of Survey, or plat must be dimensioned and shown. /}-a Location and dimensions of existing critical areas(wetlands, streams, ;/ steep slopes) and their associated buffers. — Location of Ordinary High Water Mark and shoreline jurisdiction limits ) L/.t-2 (if adjacent to a shoreline). Existing and proposed contours and site elevations(i.e. finished grades) at 5-foot minimum increments. The horizontal and vertical control datum must be clearly shown. IT-I_ Res.Building Permit Application Submittal Checklist Updated March 12,2021 Page 17 of 19 PLANNING, COMMUNITY, & ECONOMIC DEVELOPMENT DEPARTMENT Mailing Address:P.O. Box 547, Anacortes, WA 98221 Office Location:904 6th Street, Anacortes WA 98821 Phone: (360)293-1901 Structures: Location, identification, dimensions and size of all existing and proposed buildings and other structures. ,/ Location of existing and proposed retaining walls, rockeries, and {�a Location, identification, and dimensions of all setbacks. Show proposed projections into required setbacks, including dimensions(see AMC 19.44.140) Utilities& Easements: Location and dimensions of existing and proposed stormwater, sanitary sewer, potable water, and fiber lines/facilities. All wells and septic systems located on or near the project site must also be identified. Location of all existing and proposed fire hydrants within 300 feet of the boundary of the project site. f- Location and dimensions of existing and proposed freestanding lighting fixtures, utility junction boxes, public utility transformers. It -D` Stormwater Proposed Temporary Erosion and Sediment Control Measures, if not located on other plans. Proposed permanent stormwater management BMPs. Access, Circulation & Parking Location, identification, and dimensions of all existing and proposed on-site and adjacent streets and alleys, including the location and dimensions of all existing and proposed curbs,gutters, sidewalks, median islands, and street trees. I i Show existing and proposed vehicular access to the site, including the size and location of driveways and curb cuts. Show existing and proposed parking spaces, including surface material and dimensions of spaces. Open Space (ADUs, Small Lots,and Duplexes) Show calculations, location, dimensions and provided square footage of required open space area per AMC 19.43.010.C, E, or AMC 19.47, (V(1.\-- as applicable. Landscaping Show the location and design of landscape areas to be preserved and planted, and a plant list to include the location, number, size and type c/ of plant material by botanical and common name. Location of irrigation system if a permanent or temporary system is N�Y proposed. Show the location of existing trees to be retained in conformance with AMC 16.50, and tree protection measures to be implemented, when applicable. Res.Building Permit Application Submittal Checklist Updated March 12,2021 Page 18 of 19 G�xy O� PLANNING, COMMUNITY, & ECONOMIC DEVELOPMENT DEPARTMENT Mailing Address: P.O. Box 547, Anacortes, WA 98221 '011r' Office Location: 904 6'Street, Anacortes WA 98821 4 0. Phone: (360) 293-1901 Provide a maintenance plan for any infiltration-based stormwater best management practices (BMPs) built as part of the landscaping design, including the specifications and maintenance procedures of any soil amendments. — Show new trees to be planted and tree unit credit calculations, in conformance with AMC 16.50 Tree preservation,when applicable The following table, with project specific information filled in, must be placed on the site plan: Required Landscaping For Example Calculations Site Area 7,500 sq.ft. %of site area to be landscaped(per 20%-R2A zone AMC Tables 19.42.020-.030) 1,500 sq.ft. required _1,850 sq.ft. provided Compliance with AMC Ch. 16.50 Tree unit credits required: Tree Preservation. • 8 tree units required Tree unit credits retained: • 2 trees 6"dbh=4 tree unit credits retained Tree unit credits provided: • 2 new deciduous trees(min.2" caliper @ 6"above ground) • 2 new evergreen trees(8' in height) Number of required street trees 1 per 30'of frontage 60 lineal feet of frontage=3 street trees Res.Building Permit Application Submittal Checklist Updated March 12,2021 Page 19 of 19 w EROSION CONTROL NOTES A. A CERTIFIED ER❑SI❑N AND SEDIMENTATI❑N CONTROL SUPERVIS❑R (ESC) IS REQUIRED. Q THE ESC SUPERVIS❑R MUST HAVE ATTENDED A CERTIFIED ER❑SI❑N AND SEDIMENTATI❑N CONTROL CALSS WITHIN 3-YEARS FROM TODAY'S DATE. MUST PR❑VIDE CERTIFICATI❑N GQ B. THE CERTIFIED EROSION AND SEDIMENTATION CONTROL SUPERVISOR WILL OVERSEE AND BE RESP❑NSIBLE FOR ALL ER❑SI❑N CONTROL. THE FACILITIES SHALL BE INSPECTED DAILY AND MAINTAINED TO ENSURE PROPER FUNCTI❑NING. WRITTEN RECORDS SHALL BE KEPT OF WEEKLY REVIEWS AND AFTER EVERY SIGNIFICANT STORM EVENT OF THE ESC FACILITIES DURING THE WET SEASON (OCTOBER 1 TO APRIL 30). MONTHLY REVIEWS DURING THE DRY SEASON (MAY 1 TO SEPTEMBER 30). WRITTEN RECORDS SHALL BE TURNED INT❑ THE Z \ PROJECT MANAGER OR INSPECT❑R ON A WEEKLY BASIS AT THE WEEKLY SCHEDULED O \ PROJECT MEETINGS. n. ---- C. ER❑SI❑N CONTROL MEASURES SHALL BE IN PLACE PER THE APPROVED SET OF PLANS W \ PRI❑R TO ANY C❑NSTRUCTI❑N START. W D. THE ER❑SI❑N CONTROL SHALL BE INSPECTED ONCE A DAY AND M❑DIFIED TO MEET THE BMP T5,13 SURR❑UNDING C❑NDITIONS AS NEEDED. 0 POST-CONSTRUCTION - \ 1 - N U E. PR❑VIDE A SIGN DISPLAYING A 24-HOUR CONTACT NUMBER AND NAME OF THE ESCco SOIL QUALITY AND BMP C154 NP /ClO7 SUPERVISOR. THE LETTER SIZE SHALL BE A MINIMUM OF 2-INCH LETTERS. THIS SHALL BE i......4.5 p DEPTH ON ALL CONCRETE CONSTRUCTION IN PLACE PRIOR TO C❑NSTRUCTI❑N START, REMEMBER, THE LOOK OF THE SIGN WILL BE A ii-fri SILT FENCE X X x X REFLECTI❑N OF THE CONTRACTOR, DEVELOPER AND DEVELOPMENT. C21 + a CQ DISTURBED SOILS BMP C233 WASH-OUT ENTRANCE F. THE STORM DRAIN SYSTEM AND EXISTING DITCHES SHALL BE CLEANED DAILY (SECTION 7- �1, SILT FENCE o \CRUSHED RN BASE 07.3). ALL DRAINAGE SYSTEMS SHALL BE CLEANED TO THE ACCEPTANCE OF THE CITY OF 7j C4 O N HIGH VISIBILITY FENCE X X X ANAC❑RTES PRI❑R TO THE ACCEPTANCE OF THE PROJECT. w . coo 5j G. STABILIZED CONSTRUCTION ENTRANCES AND ROADS SHALL BE INSTALLED AT THE BEGINNING ir., .\\4, 0 - OF C❑NSTRUCTI❑N AND MAINTAINED DURING THE DURATI❑N OF THE PROJECT. ADDITI❑NAL E� II MEASURES MAY BE REQUIRED SUCH AS WASH PADS TO ENSURE THAT ALL PAVED AREAS ARE Q C� 0010 _Li r---00:\ k 40 �/ KEPT CLEAN. NO MUD IS ALLOWED TO ENTER ONTO CITY STREETS. CCD N 1� �3 \ \ ,' H. ANY S❑ILS EXPOSED THAT WILL NOT BE DISTURBED FOR TWO (2) DAYS DURING THE WET ��\\Q C��5�� DRIVEWAY \ r \ SEASON OR SEVEN (7) DAYS IN THE DRY SEASON SHALL BE IMMEDIATELY STABILIZED WITH ^�j - w �w� 1,141 SF �� APPROVED ESC METHODS (SEEDING, MULCHING, PLASTIC C❑VERING, ETC.) ix P79603 c��C' I. TWO (2) WEEKS PRI❑R TO THE BEGINNING OF THE WET SEASON (OCTOBER 1), ALL DISTURBED r`\ = 4 w v AREAS SHALL BE REVIEWED TO IDENTIFY WITHCH ONES CAN BE SEEDED IN PREPARATI❑N FOR w 4118 BRANT CIRCLE / THE WINTER RAINS. DISTURBED AREAS SHALL BE SEEDED WITHIN ONE (1) WEEK OF THE W = 11,648 SF BEGINNING OF THE WET SEASON. A SKETCH MAP OF THOSE AREAS TO BE SEEDED AND THOSE 1� AREAS TO REMAIN UNCOVERED SHALL BE SUBMITTED TO THE PROJECT MANAGER. THE PROJECT W w p CD rr::\ BMP C233 MANAGER CAN REQUIRE ADDITI❑NAL AREAS IN ORDER TO PROTECT SURFACE WATERS, ADJACENT H C� - �, �� SILT FENCE PR❑PERTIES OR DRAINAGE FACILITIES, Q J. PENALTIES FOR AN EROSION CONTROL VIOLATION ARE SUBJECT TO A $300 TO $1,000 FINE S UNDER CHAPTER 17.66 - PENALTIES FOR VI❑LATI❑N (AMC). EACH DAY IS C❑NSIDERED cp Nso HIUSE co A DIFFERENT VI❑LATI❑N. CT� 0_ \ 57 ,„A SF �� REMOVE ALL TEMPORARY EROSION CONTROL MEASURE WHEN THE SITE IS LANDSCAPED AND SOILS ARE '�1 N� o STABILIZED. /�O (ZJ ALL DEWATERING SHALL DISCHARGE INTO A SEDIMANT TRAP OR SEDIMENT POND. l0 50' BMP C2, 0 TEMP, THE CONTRACTOR ISI TO. PROVIDE TO THE CITY INSPECTOR THEIR SPILL PREVENTION PROGRAM TO BE INPLACE co SEDIMENT TRAP DURING CONSTRUCTION. 8 X 8 SURFACE AREA,$) \ co ÷ 10' 3-11 ABOVE OVERFLOW II �' 10), o 16' �- 1 P BMP C123 SEE DETAIL BMP C103 p0 ` y 3815 `,, 0p0 P� TEMPORARY SOIL 3819 3817 O :4r HIGH VISIBILITY X �2 �MO� co STOCKPILE LOCATION. GI ' T CO FENCE C� COVER WITH STRAW OR �� 3911 V V I S Q U E E N ' 3915 3918 1 _.> 3917 ^ W OBMP T5,10A DOWNSPOUT .�;��� 3917 0 �` iii‘t C� : cd CZ LOT AREAS FULL INFILTRATION y,� 9007 oe ' 0 SITE 11,648 SF DRYWELL 90°3 ��,� ^ 3919 4.) ,-• — �r HOUSE = 2,000 SF 180 CF 4010 ''' Y A DRIVEWAY = 1,141 SF 6 X 6 X 5 DEEP ❑ F , 4009 SET BACK FROM STEEP GRAPHIC SCALE 9014 zn PATIO - 264 SF SLOPE 50' 4015 DECK = 452SF 20 0 �0 20 40 80 4100 ^ \, � � . . 4019 .! /�� TOTAL IMPERVIOUS = 3,857 SF O u : r PERVIOUS = 7,791 SF ( IN FEET ) 4104 \ 40 5 1 inch = 20 ft. / \ \ = C 4107 4108 \\ . ( • \ . 00 ( 4114 . 4109 L4112 to e: •57. 4116 4115 � w LL .A -7 eQ J 4116 17 v// 4119ii ��7 4203 ^ SITE' 1 1 1 V C��`y�4205 �'^` V" , '�~ 4209 'r�h, 4205 .A 4206 �� /� , t� Q 4200 v_ , . r 4215 4202o, 202 .r 4210 :k \ C� 4217 O 1. Size the Below Inlet Grate Device (BIGD) for the storm water structure it ` pmmmmell 300 4204 "\ 4216 �� CD will service. - •., , +� 42-06 l 2. The BIGD shall have a built—in high—flow relief system (overflow bypass). CONSTRUCTION STANDARDS 301 ';` 4219 4210 ° 4218 G�� The retrieval system must allow removal of the BIGD without spilling the 3 collected material 4212 4220 \ ALL IMPROVEMENTS IN CITY RIGHT-❑F-WAY SHALL BE CONSTRUCTED TO THE CURRENT WSD❑T0 L21 Perform maintenance in accordance with Standard Specification 8-01.3(15). SPECIFICATION AND CURRENT CITY OF ANAC❑RTES ENGINEERING STANDARDS. 4214 4304304 �G• 1 4. 4306 4222 • 4308 4223 5" MAX. SOIL AMENDMENT NOTE 4309 �.. CE 4224 DRAINAGE GRATE TRIM 4315 4310 BMP T5.13: POST CONSTRUCTION SOIL QUALITY AND DEPTH. �q GRATE FRAME \������������ SEE APPENDIX OF DRAINAGE REPORT FOR SPECIFICATION ON PROVIDING SOIL AMENDMENTS FOR ALL r 4 -Ad 4.11 DRAINAGE GRATE DISTURBED S❑ILS OUT SIDE OF IMPERVIOUS AREA AROUND BUILDING AND PAVED AREAS. ° D -RECTANGULAR GRATE SHOWN RETRIEVAL SYSTEM(TYP.) \ / _ SEDIMENT AND DEBRIS `` V I 2 I \ I T " CID OVERFLOW BYPASS ��' "" r_ \ T T \ / CD ct � III r N ..j{4�'`'x BELOW INLET GRATE DEVICE jf,t/7/ / I l 1 ' 1� O FILTEREDThis plan sheet is accepted for construction in accordance with the WATER HERS City of Anacortes ordinances and policies. Actual conformance of the SHEET NO. CONSTRUCTION SCHEDULE �, of wASti Icy, design withapplicable laws is the sole responsibility of the P� , ti�T professional engineer, whose name and stamp appear on this sheet. C dAcquiring, complying with, and providing mitigation for all Federal, GRAPHIC tCALE 1, Install BMP C105 Construction Entrance, BMP C233 Silt Fence, BMP C103 High Visibility ` State, County, and Focal Laws, permits, and mandates, including but o ' o ' BEI W INLET GRATE DE4/�E ill% OVERFLOW BYPASS(TYP.) Construciton Fence and catch basin sock inserts, 1 °`, i not limited to the Endangered Species Act, Federal Wetland Permit, I State Department of Fisheries Hydraulics Permit, Federal Flood Plain REV.: - . ��� 2. Install BMP C154, Concrete Washout Basin. v8o� p y ( IN FEET 3. Install BMP C240, Sediment Trap as required. ') RE E� �<(,� Permits, National Pollutant Discharge Elimination System Permits is JOB NO: 2021-131 1 inch = 30 ciSTER � the responsibility of the Developer, Landowner, and their Engineer. o' o' 1,1,, ,, 4. Excavation of foundation. FSS/ONAL ENG The issuance of this shall not be construed as ofSTORM DRAIN INLET5. Install footings, foundation and utilities, permitproofDATE: July 2021 compliance with applicable laws and permit requirements. c ' . c ' . I PROTECTION 7. Install dispersion trench. Protect infiltration trench from sediment until site is stabilized. ISOMETRIC VIEW p July 31, 2021 DRAWN: D. HERRIGSTAD STANDARD PLAN I-4 0 2 0-0 0 8. Construct home with gutters and connect to dispersion trench. SECTION VIEW 9. Connect to driveway as soon as concrete pavement is in place. CITY ENGINEER DATE CHECK: D. HERRIGSTAD NOT TO SCALE 10, Installation of BMP T5,13 Post Construciton Soils and landscaping. The acceptance will expire one year from the date noted above. 1 SHEET_1_OF_ _ w E Figure 11-4.1.1 Stabilized Construction Entrance Figure 11-4.1.7a Concrete Washout Area BMP C107: Construction Road/Parking Area Stabilization Figure 111-3.1.4 Typical Downspout Infiltration Drywell NOT TO SCALE Purpose P 3m Minimum --- Stabilizing subdivision roads, parking areas, and other on-site vehicle transportation Q ° ° ° Roof Z Lath and flagging downspout routes immediately after grading reduces erosion caused by construction traffic or runoff. E t ) O ) ) O on 3 sides House o �� Sandbag {yard drainCatch Iw CID Conditions of Use / Q -_ � , 0� Berm Sandbag w Road /�`/�l` Roads or parking areas shall be stabilized wherever they are constructed, whether per- I /�j 10 mil plastic lining Roof flow �+ EXis erg ,�// y' manent or temporary, for use by construction traffic. Varies d0 _�.:�, \ A� \ t o downspout C. CO �.� �1�p;� • High Visibility Fencing (see BMP C103: High Visibility Fence (p.269)) shall be :31‹ 1 m •w'r•*-r..'lX 48 Inch diameter CO ;/i �wZS �i,;;�;;� r00141- installed, if necessary, to limit the access of vehicles to only those roads and park- / I I Berm Plan View hole filled with 1 Yz 0/h��' '�-��'�'�I1. ing A /� -3"washed drain CID az ,� „ areas that are stabilized.Ize . ,��,//� �, 0rock ----4 44 r / /�I �!'��v��;� � � �� 100'min. ° o Section A-A ��r- -**-�*,r- - Design and Installation Specifications 10 mil plastic lining .'' 1.01A PVIMPI►�. Plan Notes: r CO /- litA.�^��t��ti��� 1. Actual layout ^ OMPA � �.�s�, • On areas that will receive asphalt as part of the project, install the first lift as soon determined in the field. W G+J 1.11•�'�T.. -rie..'[♦.ram-7, ��' - �� Type "Below Grade" 2. A concrete washout Install driveway % t4AVP, as possible. Roof p ,� �,` �� Nu.� sign shall be installed I Mark center of hole A + culvert if there is a -, „ „ -, „ . within 1 o m of the % downspout 11 '--i ��,.��,�+���;�,�+,. with 1"capped PVC roadside ditch present v! `Z!1' '. �,��� ^ • A 6-inch depth of 2-to 4-inch crushed rock, gravel base, or crushed surfacing base 3m Minimum tem orar concrete / C\2 4"-8"quarryp g p y or other means flush W s ails le. t �ii+�irfii�i washout facility. / Overflow p N-r . �, - -�I, -,;� pp ' immediately grading ' ty. House / with surface c N, ,�;`,�, course shall be applied afteror utilityinstallation. A 4-inch ; �A� Topsoil � � o0 ��i��i. i. ir. i�'. / Splash block •-- -,;*;-•X-m;*�-, course of asphalt treated base (ATB) may also be used, or the road/parking area Wood frame y C. r— "MPAfZfSf��S� B B securely fastened „„a �r,uJ,\,),)nli��.u1\,l,kilirtr,�N�,\, )nli{ �,u11\,1,l�i i� i--r d' •�-tovel,• velt,*., may be paved. It may also be possible to use cement or calcium chloride for soil Geotextile '''" o e,- . .� ,- around entire .r 1'min. A--r' w �r 4444 !` 's <<�''c-ti!x"s~c4r stabilization. If cement or cement kiln dust is used for roadbase stabilization, pH around entire two flow 84-)06 1 W ;,t� ��.��, „N`„� ► stakes rl o-'0 4a co \ .monitoring and BMPs (BMP C252: High pH Neutralization Using CO2 (p.409) and Varieslomil Fine mesh screenMi .4"dia. �--i-;•'� BMP C253: pH Control for High pH Water(p.412))are necessary to evaluate and plastic lining`� 1 PVC pipe DOG oOQOG po(7C� "f minimize the effects on stormwater. If the area will not be used for permanent s - ����� Catch basin JJJ "�48ln diameter iam`n"�')Qi� ,� A-'+ CI Notes: 15'min. (yard drain) _J 48 inch diameter JC 4'min. [T� 1. Driveway shall meet roads, parking areas, or structures, a 6-inch depth of hog fuel may also be used, Stake(typ.) Sides of hole lined 0L 0( ^~ W J hole filled with 1/2 G 12"minimum thickness O the requirements of the Section B-B with filter fabric 3"washed drain )1 Z but this is likely to require more maintenance. Whenever possible, construction ( permitting agency. rock C roads and parking areas shall be placed on a firm, compacted subgrade. lo mil plastic lining 4(�o8-6108-���c( Q 2. It is recommended that Provide full width Two-stacked -r 15'min, nOQnon00(1�on`�0 the entrance be of ingress/egress 2x12 rough Plan crowned so that runoff area • Temporary road gradients shall not exceed 15 percent. Roadways shall be care- wood frame Min. 1'above seasonal high groundwater table drains off the pad. fully graded to drain. Drainage ditches shall be provided on each side of the road- Type "Above Grade" with Wood Planks Section View 44 way in the case of a crowned section, or on one side in the case of a super- NOT TO SCALE NOT TO SCALE lien elevated section. Drainage ditches shall be directed to a sediment control BMP. imoiNM Figure 11-4.1 .1 • Rather than relying on ditches, it may also be possible to grade the road so that run- Figure II-4.1 .7a �� Figure 111-3.1 .4 Stabilized Construction Entrance off sheet-flows into a heavily vegetated area with a well-developed topsoil. Land- Concrete Washout Area Typical Downspout Infiltration Drywell DEPARTMENT OF Revised June 2015 scaped areas are not adequate. If this area has at least 50 feet of vegetation that DEPARTMENT OF Revised June 2015 DEPARTMENT OF Revised November 2015 ECOLOGY water can flow through, then it is generally preferable to use the vegetation to treat ECOLOGY ECOLOGY Please see hftp://www.ecy.wa.gov/copyright.html for copyright notice including permissions, Please see hftp://www.ecy.wa.gov/copynghthtml for copyright notice including permissions, State of Washington limitation of liability,and disclaimer. runoff, rather than a sediment pond or trap. The 50 feet shall not include wetlands State of Washington limitation of liability,and disclaimer. Please see http://www.ecy.wa.gov/copyright.htmlfor copyright notice including permissions, State of Washington limitation of liability,and disclaimer. or their buffers. If runoff is allowed to sheetflow through adjacent vegetated areas, it co is vital to design the roadways and parking areas so that no concentrated runoff is co created. o 2014 Stormwater Management Manual for Western Washington 2014 Stormwater Management Manual for Western Washington 2014 Stormwater Management Manual for Western Washington 2014 Stormwater Management Manual for Western Washington E-, Cr) Volume II- Chapter 4 -Page 273 Volume II- Chapter 4 -Page 277 Volume II- Chapter 4 -Page 322 Volume Ill- Chapter 3 -Page 457 0 , +> o co co crz � -..3 an - P--4 U d"' ccS C\2 Figure 11-4.2.12 Silt Fence Figure 11-4.2.16 Cross Section of Sediment Trap Figure 11-4.2.17 Sediment Trap Outlet t Ct Joints in filter fabric shall be spliced C) at posts.Use staples,wire rings or equivalent to attach fabric to posts 2"x2"by 14 Ga.wire or equivalent, `- if standard strength fabric used '1 '� �i•ii''•Dii0�.O��•i�•��0ii'OiOi':•iiiiim�NEmos� 0imosomm a,i : 00 'W=NMMEM i���r��i�i�i�i�ii�i•Oi�i�i�i�i�ii�•• MENNE=ONEMEN = r•i I � iO �� ii•OO• iOii0'Oiiii� �• �L. •iy� ®pp••Opppp•Oppppp0••••••p000••pp0 • —_ _I r\\ ` ` '`\\ ^\�\\A\\/'\ 1\LL\ 4�.\ Surface area determined 4°Min. I I I at top of weir ,. - [.'46'Min. "`i Minimum 6'max I 1'Min. Overflow 4"x4"trench I 1'Min. II-1 1 l=1 f—� 1-1 I�I 1 l— 1'Min.depth overflow spillway 1 i i I 1 I I i GI I i—I I I—�I I =1 I I=1 =�I I�I I=1 —I I I—III=I I I=I I I=1 I� �I I. �y- - T - - - - 'El l . .=. . ..: . . . . . . . . . . . .•I=_Ij,. Post spacing may be increased 'rL •1'Min. I ,.c. • ::• • i •-• ♦ : ♦ • :"i.. a 4 2"x2"wood posts,steel 3.5'-5' �—1 1 to 8'if wire backing is used '� 7 1 I�- fence posts,or equivalent at 1.5'Min. I _�_ Min. 1'depth 2"-4"rock Flat Bottom 1 1 1-1 1 1E 1 1-1 1 -1 1 1—I I I—1 l i—1 1 El l 1= �4" 1'" Native soil or III=III=I I 11 E11 EI 11=111=111=1 I Min. 1'depth/4' -1.5" �—�- Washedgravel Discharge to compacted backfill washed gravel 2"x2"by 14 Ga.wire or equivalent, Note:Trap may be formed by berm or by Geotextile stabilized Geotextile if standard strength fabric used partial or complete excavation. conveyance, 9 p 2"-4"Rock outlet,or level -. spreader /� m Rip Rap /\ Filter fabric im �, .�\/\ :l off WA ii u' \\\ \ 2'min �' tic im I ''e" ($1P4 V6 �/\// \\jam\\ .' Backfill trench with ///\ .- native soil or%4"- '••'�' •i %� 1.5"washed gravel '` '�"t \/� X,n\\j\j\\j` Cin Minimum '` \7\\�\\ 27807 ��i<� RFGI STERE9G\� F 4 4"x4"trench /��/ SS/oNAL EN ® a 1 ' 1-4 2"x2"wood posts,steel Ct fence posts,or equivalent NOT TO SCALE NOT TO SCALE NOT TO SCALE July 28, 2021 I C Figure I I-4.2.12 ib•INM Figure re I I-4.2.16 i"� Figure re I I-4.2.17 g g = ula Silt Fence IIMICross Section of Sediment Trap Sediment Trap Outlet DEPARTMENT OF Revised October 2014 DEPARTMENT OF Revised November 2015 DEPARTMENT OF Revised November 2015 SHEET NO. ECOLOGY Please see httpa/www.ecy.wa.govlcopyright.html for copyright notice including permissions, ECOLOGY Please see httpalwww.ecy.wa.gov/copyrighLhtml for copyright notice including permissions, ECOLOGY Please see httpWwww.ecy.wa.gov/copyright.html for copyright notice including permissions, State of Washington limitation of liability,and disclaimer. State of Washington limitation of liability,and disclaimer. C 2 State of Washington limitation of liability,and disclaimer. REV.: - JOB NO: 2021-131 DATE: July 2021 2014 Stormwater Management Manual for Western Washington 2014 Stormwater Management Manual for Western Washington 2014 Stormwater Management Manual for Western Washington SCALE: Noted Volume 11- Chapter 4 -Page 369 Volume 11- Chapter 4-Page 386 Volume 11- Chapter 4 -Page 387 DRAWN: D. HERRIGSTAD CHECK: D. HERRIGSTAD SHEET OF Y o Storm Water Drainage Report Minimum Requirements 1 through 5 ENGINEERING DEPARTMENT 74 �� 904 6th Street Anacortes, WA 98221 C,0� www.anacorteswa.gov Official Use Only: (Information to Inspectors) Required Storm Water Facility and other related requirements: s S€D 1 •-s P&-T Sc$2-e 13m - T �stbu-r 1 tiF% em' A.GLEetylek-.7c 'i3rinQ T '- 13 - It_S - Project Address: _4118 Brant Circle Submittal Date: c•tal•Zo2 Parcel Number: P79603 Revision Number: st Permit Number: _BLD-2021- Reviewer: 5T c L Acceptance Dat COA): c•2 5.2o2 1 FRONT OF REPORT: Submittal Checklist: (All items listed below are required for a complete submittal) o Cover Sheet (Preparer to Provide): Project title, Location, Revision dates, Engineer's Stamp o TAB 1: Minimum Requirement#1 — Preparation of Stormwater Site Plans o TAB 2: Minimum Requirement#2—Construction Stormwater Pollution Prevention (SWPP) o TAB 3: Minimum Requirement#3—Source Control of Pollution o TAB 4: Minimum Requirement#4— Preservation of Natural Drainage Systems and Outfalls o TAB 5: Minimum Requirement#5 — On-site Stormwater Managements o APPENDIX 1 - Survey performed by a Professional Land Surveyor o APPENDIX 2 - Soils Analysis (Volume 1, Chapter 3.1.1) o APPENDIX 3 - Model Soil Management Plan for BMP T5.13 o APPENDIX 4 - Determining Construction Site Sediment Damage Potential (Appendix 7) o APPENDIX 5 - Site Plan with all applicable information (Minimum Size 11x17—30 scale) o APPENDIX 6 - Documented Site Photos (North, South, East and West) o APPENDIX 7 - Drainage BMP Facility Maintenance Covenant, if applicable. To be recorded prior to the Temporary Certificate of Occupancy, Certificate of Occupancy or Final Acceptance. Stormwater Management Requirements: o Refer to the 2012\14 Department of Ecology Manual, as amended in 2014 for further required information. o See also, City of Anacortes Municipal Code 19.76 for additional information o See also, current Engineering Development Standards, Chapter 2- Storm Drainage for additional information. Version Date: October 7, 2019 Previous Version Date: February 20, 2019 Project Description and Summary: Summary Table Existing Proposed Development Type Undeveloped Lot House/garage Number of Lots 1 1 Lot Acreage in SF 11,648 SF 11,648 SF Soil Type(s) Keystone Loamy Sand Site Sediment Transport Score (High\Low) 25 Low Depth to Ground Water Table (Feet and Inches) 50+" (See completed Soils Analysis(Volume 1, Chapter 3.1.1) Infiltration Rate during Rainy Season (Inch\Per Hour) 7.7 inch/hour Impervious Surface (on-site) 0 3,857 SF Impervious Surface (off-site) 0 0 sf New and Replaced Hard Surface Total (SF) 0 3,857 sf Lot Coverage (Percentage) 0 33% BMP (Required Minimum Requirement 5) BMP T5.13 Post Construction Soils 'j1r t'-re-)•1 op., vu- I N %Le al oh.1 Water Quality Method (Minimum Requirement 6) N/A Water Quantity Method (Minimum Requirement 7) N/A Existing Site Conditions Summary: (Additionally, provide information on previous permits, if any, like Grade and Fill, Clear and Grade, topography, vegetation, drainage, Critical Areas adjacent to the site and how it may affect this project if soils are disturbed, Soils Type (included in Soils Analysis Report), Erosion Problem Areas, Construction PhasinglSequence) The site is undeveloped with brush and a few trees. The site slopes down to the east at about 7% in the area of the house and over 50% of 2:1 at the boundary of the lot down to Brant Circle which borders the east. A single family home borders the north with a steep slope uphill at the rear west side of the property and undeveloped to the south. The soils are very sandy and good for infiltration. The soils analysis is in Appendix 2. Developed Conditions Summary: (Additionally, to be shown on the site plan. Identify cut and fill areas, proposed slopes of all hard surfaces, proposed contours) The site will be developed with a single family home and driveway to Brant Circle. Cut and fills will be limited to the driveway entrance with the house sitting on an existing shelf. Contours will not change except for the driveway. Site plan is in Appendix 5. Drainage Basin (2007 Storm Comp Plan -City website\publicworks\engineering\comprehensive plans): What Drainage Basin are you in? F10 Identify any downstream drainage issues (Storm Comp Plan: No. If so, describe: This Basin discharge to the east to Fidalgo Bay. No none issue in this drainage basin. Complete the Applicability Requirements -Flow Chart(Figure 1-2.4.1 Attached, Figure 1-2.4.2 Attached and Figure 1-2.5.1 Attached) Version Date: October 7, 2019 Previous Version Date: February 20, 2019 Figure 1-2.4.1 Flow Chart for Determining Requirements for New Development Start Here Does the site have 35% Yes See Redevelopment Minimum or more of existing ► Requirements and Flow Chart impervious coverage? (Figure 1-2.4.2). • • No Does the project convert acres or more of vegetation to • Does the project result in lawn or landscaped areas, or 5,000 square feet,or No convert 2.5 acres or more of greater, of new plus M native vegetation to pasture? replaced hard surface area? \\NO Yes Yes Does the project result in 2,000 square feet, or greater, of new plus All Minimum Requirements replaced hard surface area? apply to the new and replaced hard surfaces and converted Yes No vegetation areas. V Does the project have land Minimum Requirements#1 disturbing activities of 7,000 through#5 apply to the new '1" Yes square feet or greater? and replaced hard surfaces and the land disturbed. No s Minimum Requirement#2 applies. `,,111311 Figure I-2.4.1 Flow Chart for Determining Requirements for New Development DEPARTMENT OF Revised June2015 ECOLOGY Please see htfpi/www.ecy.wa.gov/copyright.htmt for copyright notice including permissions, State of Washington limitation of liability,and disclaimer. 2014 Stormwater Management Manual for Western Washington Volume I- Chapter 2 - Page 37 Version Date: October 7, 2019 Previous Version Date: February 20, 2019 TAB 1 (MINIMUM REQUIREMENT#1) • 1-2.5.1 Minimum Requirement#1 — Prepare a Stormwater Site Plan - 1.3 — Preparation of a Stormwater Site Plan - 1.3.1 —Stormwater Site Plans: Step-by-Step Note: The level of detail needed for each step depends upon the project size. Provide a narrative description of each step. 1-3.1.1 Step 1 - Site Analysis: Collect and Analyze Information on Existing Conditions Site analysis shall be submitted as part of the Existing Conditions Summary above. Part of the information in this step should be used to help prepare the Construction Stormwater Pollution Prevention Plan. Purpose of the Site Analysis is to provide for a Low Impact Development site design that is intended to compliment the predeveloped conditions of the site. A Stormwater site plan has been prepared showing the house/garage, driveway. An infiltration drywell will be used with a set back from the steep slope of 50 feet and 10 feet from the structure on the south side of the lot. The area south of the lot is common area. Soils report included in Appendix 2. 1-3.1.2 Step 2 - Prepare Preliminary Development Layout Based upon the analysis of existing site conditions, locate the buildings, roads, parking lots, landscaping features, on-site stormwater management BMP's, and preliminary location of stormwater treatment and retention/detention facilities for the proposed development. See layout included in Appendix 5. 1-3.1.3 Step 3 - Perform Off-site Analysis (at Local Agency's Option): Use additional Sheets, if necessary, Ecology recommends that local governments require an off-site analysis for projects that add 5,000 SF or more of new hard surfaces, or convert 3/ acres of vegetation to lawn or landscape areas, or convert 2.5 acres of forested area to pasture. Off-site analysis extends to mile downstream of the project site. The site sheets to the west. The soils are very sandy and highly pervious. If water reaches Brant Circle to the east the flow would follow the road with a raised asphalt edge to the south east to Mitchell Drive approximately 290 feet before entering a closed drainage system. The drainage system flow north 212 feet, then east down to State Route 20, 262 feet to an open ditch along SR 20. The ditch flows southeast, 840 feet then east under SR 20 and discharges down the bank and under Fidalgo Bay Road as well as under the Tommy Thompson trail before discharging to Fidalgo Bay well over a '/4 mile downstream. Version Date: October 7, 2019 Previous Version Date: February 20, 2019 1-3.1.4 - Determine Applicable Minimum Requirements Establish project size thresholds for the application of Minimum Requirements to new development and redevelopment projects. Figures 2.4.1 (Attached) and 2.4.2 (Attached) provide the same thresholds in a flow chart format. Based on the preliminary layout, determine whether Minimum Requirements#1 through #5 apply to the project; or, whether Minimum Requirements#1 through#9 apply. Please note, that Minimum Requirement#1 through #5 may trigger additional Minimum Requirements, such as Flow Control. The total new impervious area added to this site will be 3,857 square feet of new or replaces hard surfacing and under the 5,000 square foot threshold and triggers minimum requirements 1 through 5. 1-3.1.5 Step 5 - Prepare a Permanent Stormwater Control Plan (Refer to this section of the Ecology Manual for requirements.) A storm water plan is provided in the developed site plan in Appendix 5. The report will require Post-Construction soil quality and depth as well as dispersion trenches. 1-3.1.6 Step 6 - Prepare a Construction Stormwater Pollution Prevention Plan (MR#2— 13 Elements) Refer to Chapter 11-3—Planning fora detailed description of each element. See also attached Tables 4.1.1 (Source Control BMP's by SWPPP Element) and Table 4.2.1 (Runoff Conveyance and Treatment BMP's by SWPPP Element). See attached 13 Elements of a SWPPP, please complete and attached 1-3.1.7 Step 7 - Complete the stormwater site plan The Stormwater Site Plan encompasses the entire submittal to the Local Agency with drainage review authority. Refer to this section of the Manual for further clarification of each item and what is required. See below: • Project Overview • Existing Conditions Summary • Off-site Analysis Report • Permanent Stormwater Control Plan • Construction Stormwater Pollution Prevention Plan • Special Reports and Studies • Other Permits • Operation and Maintenance Manual • Declaration of Covenant for Privately Maintained Flow Control and Treatment Facilities. (See attached Drainage BMP Maintenance Covenant BMP Agreement) Version Date: October 7, 2019 Previous Version Date: February 20, 2019 • Declaration of Covenant for Privately Maintained On-site Stormwater BMP's (See attached Drainage BMP Maintenance Covenant BMP Agreement) • Bond Quantities Worksheet, if applicable The project overview has been provided at the beginning of this report along with an existing conditions description. Maps are included in the attachments. 1-3.1.8 Step 8 - Check Compliance with all Applicable Minimum Requirements A Stormwater Site Plan as designed and implemented should specifically fulfill all Minimum Requirements applicable to the project. The Stormwater Site Plan should be reviewed to check that these requirements are satisfied. To take place during review and during and after construction. Version Date: October 7, 2019 Previous Version Date: February 20, 2019 TAB 2 (MINIMUM REQUIREMENT#2) • 1-2.5.2 Minimum Requirement#2—Construction Stormwater Pollution Prevention Plan (SWPP) - All projects are required to complete Minimum Requirement 2. - Refer to the 13 Elements of the SWPP (See document below, complete and attach) - See attached Table 4.1.1, Table 4.2.1 and Table - Provide Engineering Calculations as an attachment for Sediment Ponds\Traps, Diversions, Waterways and Runoff/Stormwater Detention Calculations. Table 4.1.1 Source Control BMP's by SWPPP Element Version Date: October 7, 2019 Previous Version Date: February 20, 2019 Element Pl EWmentP2 ElementNS Element PS E lament P3 Element Nell Element112 ElememPl3 HIP or Element Nene Preserve Establish ProtectProtect Control Maintain Menage the Pro9act Low Vegetdlordia:k Construction Sea Sbpes Pollutants BLIPS Project Impact Guarino Limits Access Bevelonment BLIP C101:Presenting NaturalVejeteilon ✓ BHP C102:Buller Zones ✓ ✓ BHP C103:Hlgh Wibllly Plastic or Metal ✓ Fence BPP C105: StabllzedConstruedon Entrance l Exit BLIP CLUB: heelWheel Wash ✓ BNPClaT:Canetnlctbn RotdIPetkki Area SbbUIr don BHP CUM Tampon's,and Permanent y. ✓ Seeding BHP C121:Mulching ✓ ✓ BHP C122:Nets and!gimlets ✓ ✓ BLIP C123:Plastic Covering ✓ BLIP C1241 Sodding ✓ BNP C12S:TapaallIngIComporting ✓ ®HP C123:Polyeelydwaida for WI Eroalon ✓ Protection BLIP C150: Surface Roughening ✓ '✓ BNP C131:Gradient lterr a j / BHP MO:duet Control ✓ BHP CISU: Nalsrlsls On Hand ✓ ✓ BHP C131:Concrete Handling ✓ Bb1P C162: Saanutling and Sirr@acing ✓ Pollution Paeventlan BLIP C153:Material Bellvosy,Storage and Containment BHP C1SLl:Concrete Mahone Area ✓ BNP Clad:Certlled Erosion and ,✓ ✓ Sediment Control Lead BHP C182:Scheduling ✓ Table 4.2.1 Runoff Conveyance and Treatment BMP's by SWPPP Element Version Date: October 7, 2019 Previous Version Date: February 20, 2019 E.laahlestt ate E cstrient#d Eleer. rit :Elea-lent aVr? '; brit B ei r� A'S Elaine*440 1 Ie tl tli'tF9 ar�si 11 !I Stabilize rr m k 1.0401 BticiP r?-r izle rrt d Gorrtrol Preterit 1ptuto Control Gatntrol: • 9titrti+llt ui ar74n±al 11 atst �I�w� :� �Ita�msr 1�ssalt�.lat'ltefs Pad/Aids `1,r�1+�N1'� i �a C7 and ¢. Is `dfL'J tii t L1 00.413!enrit r:sa-•l. fl -tt-C•bafivelk Sihi?C D ,O tune!Ming • Cad; kri;Wor Bars eR,tiP C204 Pip Piptt Slope Drains !AMP C211 ;,SerePu iiwo Oraln< @MP C.,2llltr Lobel.9preedar --- 21b1P Cartt CIKckf:sartit j t t�9P c.3.U0; 1t rta1jUlir Slit Olke f Uot;,xilre , Emt:nni d Chat*laidi) RIVIP 119 Olti.1t1izt N Eetti n • PIMP 2D: Storm Drain Inlet' robaellea • LIMP C231: l ta.di Barriir • C23r; Orav d niter Derre -V Pfa9P C234-1 Vegetated ted 'trip ;' V - i MI i Mtxl B M1P C2367-1kgitotive i<itr tin ,62411c Sedililer t Tr I v Lx if C:2411 Temporary diet eirt l > d ••/ • EINIP C285: Comeirialioll litermigater ter. CLiettleel'tto rest t PlitrEklor , C fliP e sHigh:pill i NGutrIizat1ori LI'I fo V' 2.e�znmre.- I I IMP 0 ar pH Cnitcl for High pH Vkiter . 13 Elements of SWPPP Version Date: October 7, 2019 Previous Version Date: February 20, 2019 (Construction Stormwater Pollution Prevention Plan) Please check off boxes to show that each element has been read and understood. Provide details where applicable and if certain aspects are unnecessary or exempt, clearly justify. Details of the 13 Elements and the correlating BMPs are listed Above from the 2014 Stormwater Management Manual for Western Washington (SWMMWW). A link is provided on the City of Anacortes website, under Planning, Community, & Economic Development Department, as well as under Stormwater on the Engineering Division of Public Work's page. Owner Name: Kendall, Site Address: 4118 Brant Circle Prepared By: Dale Herrigstad PE The Stormwater checklist or building permit determined that: ❑ The 13 elements must be addressed ❑ These elements must be addressed for construction activity adding under for construction activity adding 2,000 2,000 sq. ft. of hard surface area. sq. ft. or more of hard surface area. This means that an attached narrative and site plan are required with this document. Under each element, provide the BMP's that will be applicable to your project. Use the attached Tables provided. ELEMENT 1: Preserve Vegetation/Mark Clearing Limits ❑ Before beginning land disturbing activities, including clearing and grading, clearly mark all clearing limits, sensitive areas and their buffers, and trees that are to be preserved within the construction area. 17 Retain the duff layer, native top soil, and natural vegetation in an undisturbed state to the maximum degree practical. A high visibility construction fence BMP C103 will be installed at the perimeter of the construction site along the uphill side and north and south boundaries. BMP will be installed as first step of construction. BMP C233, Silt Fence will also be used to mark the down slope perimeter of the construction site. BMP to be monitored daily and repaired as needed. ELEMENT 2: Establish Construction Access ❑ Limit construction vehicle access and exit to one route, if possible. ❑ Stabilize access points with a pad of quarry spalls, crushed rock, or other equivalent BMPs, to minimize tracking onto roads. Locate wheel wash or tire baths on site, if the stabilized construction entrance is not effective in preventing tracking sediment onto roads. ❑ If sediment is tracked off site, clean the affected roadway thoroughly at the end of each day, or more frequently as necessary (ex: wet weather). Remove sediment from roads by shoveling, sweeping, or pick up and transport the sediment to a controlled sediment disposal area. ❑ Conduct street washing only after sediment is removed in accordance with the above bullet. ❑ Control street wash wastewater by pumping back on site or otherwise preventing it from discharging into systems tributary to waters of the State. The construction entrance will be limited to one location at Brant Circle with a gravel pad as BMP C105 or C107 (Construction Entrance). Any dirt or mud that is tracked onto the roadway will be clean immediately. Version Date: October 7, 2019 Previous Version Date: February 20, 2019 ELEMENT 3: Control Flow Rates ❑ Protect properties and waterways downstream of development sites from erosion and the associated discharge of turbid waters due to increases in the velocity and peak volumetric flow rate of stormwater runoff from the project site. ❑ Where necessary to comply with the bullet above, construct stormwater retention or detention facilities as one of the first steps in grading. Assure that detention facilities function properly before constructing site improvement (e.g. impervious surfaces). ❑ If permanent infiltration ponds are used for flow control during construction, protect these facilities from siltation during the construction phase. A temporary sediment trap will be constructed on site to slow off site sheet flow. ELEMENT 4: Install Sediment Controls ❑ Design, install, and maintain effective erosion controls and sediment controls to minimize the discharge of pollutants. ❑ Construct sediment control BMPs (sediment ponds, traps, filters, etc.) as one of the first steps in grading. These BMPs shall be functional before other land disturbing activities take place. ❑ Minimize sediment discharges from the site. The design, installation and maintenance of erosion and sediment controls must address factors such as the amount, frequency, intensity and duration of precipitation, the nature of resulting stormwater runoff, and soil characteristics, including the range of soil particle sizes expected to be present on the site. ❑ Direct stormwater runoff from disturbed areas through a sediment pond or other appropriate sediment removal BMP, before the runoff leaves a construction site or before discharge to an infiltration facility. Runoff from fully stabilized areas may be discharged without a sediment removal BMP, but must meet the flow control performance standard in Element#3, bullet#1. ❑ Locate BMPs intended to trap sediment on-site in a manner to avoid interference with the movement of juvenile salmonids attempting to enter off-channel areas or drainages. ❑ Provide and maintain natural buffers around surface waters, direct stormwater to vegetated areas to increase sediment removal, and maximize stormwater infiltration. ❑ Where feasible, design outlet structures that withdraw impounded stormwater from the surface to avoid discharging sediment that is still suspended lower in the water column. Per BMP C233 a silt fence will be installed along the downslope perimeter of the site along the east boundary. To be installed prior to the start of construction. BMP to be monitored daily and repaired as needed. BMP C162 Scheduling. ELEMENT 5: Stabilize Soils ❑ Stabilize exposed and unworked soils by application of effective BMPs that prevent erosion. Applicable BMPs include, but are not limited to: temporary and permanent seeding, sodding, mulching, plastic covering, erosion control fabrics and matting, soil application of polyacrylamide (PAM), the early application of gravel base early on areas to be paved, and dust control. ❑ Control stormwater volume and velocity within the site to minimize soil erosion. ❑ Control stormwater discharges, including both peak flow rates and total stormwater volume, to minimize erosion at outlets and to minimize downstream channel and stream bank erosion. ❑ Soils must not remain exposed and unworked for more than the time periods set forth below to prevent erosion. o During the dry season (May 1 —Sept 30): 7 days o During the wet season (Oct 1 —Apr 30): 2 days ❑ Stabilize soils at the end of the shift before a holiday or weekend if needed based on the weather forecast. Version Date: October 7, 2019 Previous Version Date: February 20, 2019 ❑ Stabilize soil stockpiles from erosion, protect with sediment trapping measures, and where possible, be located away from storm drain inlets, waterways, and drainage channels. ❑ Minimize the amount of soil exposed during construction activity. ❑ Minimize the disturbance of steep slopes. ❑ Minimize soil compaction and, unless infeasible, preserve topsoil. Stabilize exposed and un-worked soils by application of effective BMPs that prevent erosion. Applicable BMPs include, but are not limited to: temporary and permanent seeding, sodding, mulching and plastic covering. Install plastic covering per BMP C123 on Soils Stockpiles. BMP to be monitored daily and repaired as needed. Refer to Table 4.1.1 in MR#2. ELEMENT 6: Protect Slopes ❑ Design and construct cut-and-fill slopes in a manner to minimize erosion. Applicable practices include, but are not limited to, reducing continuous length of slope with terracing and diversions, reducing slope steepness, and roughening slope surfaces (Ex: track walking). ❑ Divert off-site stormwater (run-on) or ground water away from slopes and disturbed areas with interceptor dikes, pipes, and/or swales. Off-site stormwater should be managed separately from stormwater generated on the site. ❑ At the top of slopes, collect drainage in pipe slop drains or protected channels to prevent erosion. o *Temporary pipe slope drains must handle the peak volumetric flow rate calculated using a 10- minute time step from a Type 1A, 10-year, 24-hour frequency storm for the developed condition. Alternatively, the 10-year, 1-hour flow rate predicted/indicated by an approved continuous runoff model, increased by a factor of 1.6, may be used. The hydrologic analysis must use the existing land cover condition for predicting flow rates from tributary areas outside the project limits. For tributary areas on the project site, the analysis must use the temporary or permanent project land cover condition, whichever will produce the highest flow rates. If using the Western Washington Hydrology Model (WWHM) to predict flows, bare soil areas should be modeled as "landscaped" area. o Where 15-minute time steps are available in an approved continuous runoff model, they may be used directly without a correction factor. ❑ Place excavated material on the uphill side of trenches, consistent with safety and space considerations. • Place check dams at regular intervals within constructed channels that are cut down a slope. • Consider soil types and its potential for erosion. ❑ Stabilize soils on slopes, as specified in Element 5. ❑ BMP combinations are the most effective method of protecting slopes with disturbed soils. Ex: Use both mulching and straw erosion control blankets. The site has an average slope of less than 7% across the building area of the site and up to 50% east of the property line down to Brant Circle. Terracing and some type of retaining walls are proposed on the steep slopes. ELEMENT 7: Protect Drain Inlets ❑ Protect all storm drain inlets made operable during construction so that stormwater runoff does not enter the conveyance system without first being filtered or treated to remove sediment. ❑ Clean or remove and replace inlet protection devices when sediment has filled one-third of the available storage (unless a different standard is specified by the product manufacturer). ❑ Where possible, protect all existing storm drain inlets so that stormwater runoff does not enter the conveyance system without first being filtered or treated to remove sediment. ❑ Keep all approach roads clean. Do not allow sediment and street wash water to enter storm drains without prior and adequate treatment unless treatment is provided before the storm drain discharges to Version Date: October 7, 2019 Previous Version Date: February 20, 2019 waters of the State. ❑ Inlets should be inspected weekly at a minimum and daily during storm events. Per detail 1-40.20-00 Storm Drain Inlet protection devices will be installed at existing catch basins in the immediate vicinity of the project. To be installed prior to the start of any construction. There are no catch basins in the near vicinity of the project. BMP to be monitored daily and repaired as needed. ELEMENT 8: Stabilize Channels and Outlets ❑ Design, construct, and stabilize all on-site conveyance channels to prevent erosion from the following expected peak flows: o *Channels must handle same peak volumetric flow rate as temporary pipe slope drains listed in Element 6, above. ❑ Provide stabilization, including armoring material, adequate to prevent erosion of outlets, adjacent streambanks, slopes, and downstream reaches at the outlets of all conveyance systems. ❑ The best method for stabilizing channels is to completely line the channel with a blanket product first, then add check dams as necessary to function as an anchor and to slow the flow of water. No stormwater runoff will be conveyed off site via channels, swales, or streams. ELEMENT 9: Control Pollutants ❑ Design, install, implement, and maintain effective pollution prevention measures to minimize the discharge of pollutants. ❑ Handle and dispose of all pollutants, including waste materials and demolition debris that occur on-site in a manner that does not cause contamination of stormwater. ❑ Provide cover, containment, and protection from vandalism for all chemicals, liquid products, petroleum products, and other materials that have the potential to pose a threat to human health or the environment. On-site fueling tanks must include secondary containment. Secondary containment means placing tanks or containers within an impervious structure capable of containing 110% of the volume contained in the largest tank within the containment structure. Double-walled tanks do not require additional secondary containment. • Conduct maintenance, fueling, and repair of heavy equipment and vehicles using spill prevention and control measures. Clean contaminated surfaces immediately following any spill incident. ❑ Discharge wheel wash or tire bath wastewater to a separate on-site treatment system that prevents discharge to surface water, such as closed-loop recirculation or upland land application, or to the sanitary sewer, with local sewer district approval. Wheel wash or tire bath wastewater should not include wastewater from concrete washout areas. ❑ Apply fertilizers and pesticides in a manner and at application rates that will not result in loss of chemical to stormwater runoff. Follow manufacturers' label requirements for application rates and procedures. ❑ Use BMPs to prevent contamination of stormwater runoff by pH-modifying sources. The sources for this contamination include, but are not limited to: bulk cement, cement kiln dust, fly ash, new concrete washing and curing waters, waste streams generated from concrete grinding and sawing, exposed aggregate processes, dewatering concrete vaults, concrete pumping, and mixer washout waters. Adjust the pH of stormwater if necessary to prevent violations of the water quality standards. ❑ Assure that washout of concrete trucks is performed off-site or in designated concrete washout areas only. Do not wash out concrete trucks onto the ground, or into storm drains, open ditches, streets, or streams. Do not dump excess concrete on site, except in designated concrete washout areas. Concrete spillage or concrete discharge to surface waters of the State is prohibited. Do not use upland land applications for discharging wastewater from concrete washout areas. ❑ Obtain written approval from Ecology and provide to the City before using chemical treatment other than CO2 or dry ice to adjust pH. Version Date: October 7, 2019 Previous Version Date: February 20, 2019 ❑ Woody debris may be chopped and spread on site. ❑ Conduct oil changes, hydraulic system drain down, solvent and de-greasing cleaning operations, fuel tank drain down and removal, and other activities which may result in discharge or spillage of pollutants to the ground or into stormwater runoff using spill prevention measures, such as drip pans. ❑ Clean contaminated surfaces immediately following any discharge or spill incident. Emergency repairs may be performed on-site using temporary plastic placed beneath and, if raining, over the vehicle. Per BMP C154 a Concrete Washout Area is to be installed onsite to capture contaminated water from concrete washouts. To be installed prior to foundation I concrete installation. BMP to be monitored daily and repaired as needed. Contractor is to provide spill prevention kits for excavation and concrete crews are required on Site. ELEMENT 10: Control De-Watering ❑ Discharge foundation, vault, and trench dewatering water, which have characteristics similar to stormwater runoff at the site, into a controlled conveyance system before discharge to a sediment trap or sediment pond. ❑ Discharge clean, non-turbid de-watering water, such as well-point ground water, to systems tributary to, or directly into surface waters of the State, as specified in Element 8, provided the de-watering flow does not cause erosion or flooding of receiving waters or interfere with the operation of the system. Do not route clean dewatering water through stormwater sediment ponds. Note that"surface waters of the State" may exist on a construction site as well as off site; for example, a creek running through a site. ❑ Handle highly turbid or contaminated dewatering water separately from stormwater. ❑ Other treatment or disposal options may include: 1. Infiltration 2. Transport off-site in a vehicle, such as a vacuum flush truck, for legal disposal in a manner that does not pollute state waters. 3. Ecology-approved on-site chemical treatment or other suitable treatment technologies. 4. Sanitary or combined sewer discharge with local sewer district approval, if there is no other option. 5. Use of a sedimentation bag with outfall to a ditch or swale for small volumes of localized dewatering. ❑ Construction equipment operation, clamshell digging, concrete tremie pour, or work inside a cofferdam can create highly turbid or contaminated dewatering water. ❑ Discharging sediment-laden (muddy)water into waters of the State likely constitutes a violation of water quality standards for turbidity. The easiest way to avoid discharging muddy water is through infiltration and preserving vegetation. If dewatering is needed all discharge will be directed to a temporary sediment trap BMP C240 prior to discharge to the city storm drainage system. The sediment trap will be designed for a typical 4,000 sf impervious area or 0.09 acres where the developed 2 year flow is 0.03 cfs X 2080 sf/cfc flow= 62 sf surface area plan or 8'x8' square surface pond area minimum. ELEMENT 11: Maintain BMPs ❑ Maintain and repair all temporary and permanent erosion and sediment control BMPs as needed to assure continued performance of their intended function in accordance with BMP specifications. ❑ Remove all temporary erosion and sediment control BMPs within 30 days after achieving final site stabilization or after the temporary BMPs are no longer needed. Some temporary erosion and sediment control BMPs are bio-degradable and designed to remain in place following construction such as compost socks. ❑ Provide protection to all BMPs installed for the permanent control of stormwater from sediment and compaction. All BMPs that are to remain in place following completion of construction shall be examined and placed in full operating conditions. If sediment enters the BMPs during construction, it shall be removed and the facility shall be returned to the conditions specified in the construction Version Date: October 7, 2019 Previous Version Date: February 20, 2019 documents. • Remove or stabilize trapped sediment on site. Permanently stabilize disturbed soil resulting from removal of BMPs or vegetation. BMP to be monitored daily and repaired as needed and or as required by the City of Anacortes. Weekly reports are required to be submitted to the building department. ELEMENT 12: Manage the Project— Projects subject to Minimum Requirements 1-9 must have a Certified Erosion and Sediment Control Lead (CESCL) for site inspections. Projects subject to Minimum Requirements 1-5 do not require the inspector to be certified. By the initiation of construction, the SWPPP must identify the CESCL or inspector, who shall be present on-site or on-call at all times. ❑ Phase development projects to the maximum degree practicable and take into account seasonal work limits to prevent soil erosion and prevent transporting sediment from the site during construction. ri Inspection and monitoring — Inspect, maintain, and repair all BMPs as needed to assure continued performance of their intended function. ❑ Maintain, update, and implement the SWPPP. ❑ Clearing and grading activities for developments shall be permitted only if conducted using an approved site development plan (e.g., subdivision approval). ❑ From Oct 1 through Apr 30, clearing, grading, and other soil disturbing activities is permitted only if shown that the site operator will prevent silt-laden runoff from leaving the site through a combination of the following: 1. Site conditions including existing vegetative coverage, slope, soil type, and proximity to receiving waters. 2. Limit activities and the extent of disturbed areas. 3. Proposed erosion and sediment control measures. Weather conditions can influence the seasonal limitation on site disturbance. The City of Anacortes has the authority to take enforcement action per AMC 19.76 Stormwater. ❑ The following activities are exempt from the seasonal clearing and grading limitations: 1. Routine maintenance and necessary repair of erosion and sediment control BMPs; 2. Routine maintenance of public facilities or existing utility structures that do not expose the soil or result in the removal of the vegetative cover to soil 3. Activities where there is 100% infiltration of surface water runoff within the site in approved and installed erosion and sediment control facilities. BMP to be monitored daily and repaired as needed and the responsibility of the owner. Project does not requires a certified CESCL. ELEMENT 13: Protect Low Impact Development BMPS ❑ If implementing any bioretention facilities or rain gardens, refer to the applicable BMP sections of the Manual for requirements. No LID BMPS are proposed. _Dale Herrigstad July 28, 2021 Applicant Signature Date Version Date: October 7, 2019 Previous Version Date: February 20, 2019 TAB 3 (MINIMUM REQUIREMENT#3) • 1-2.5.3 Minimum Requirement#3 —Source Control of Pollution All known, available and reasonable source control BMP's must be applied to all projects. Source control BMP's must be selected, designed, maintained according to the reference Ecology Manual. The intent of source control BMP's is to prevent stormwater from coming in contact with pollutants. They are a cost-effective means of reducing pollutants in stormwater, and, therefore, should be considered in all projects. Single Family Residential Construction Projects and Residential Subdivisions are Exempt from this Minimum Requirement. All Commercial Properties, Industrial Properties, and Multi-Family Properties, Boatyards, Sand and Gravel Mining Opertations are required to comply with this Minimum Requirement. Refer to Chapter IV-2.1 Applicable (Mandatory) Operationsal Source Control BMP's Version Date: October 7, 2019 Previous Version Date: February 20, 2019 TAB 4 (MINIMUM REQUIREMENT#4) • Minimum Requirement#4— Preservation of Natural Drainage Systems and Outfalls Natural drainage patterns shall be maintained and discharges from the project shall occur at the natural location, to maximum extent practicable. The manner by which runoff is discharged from the project site must not cause a significant adverse impact to downstream receiving waters and down gradient properties. All outfalls require energy dissipation. The objective is to preserve and utilize drainage systems to the fullest extent because of the multiple stormwater benefits these systems provide; and to prevent erosion at the downstream of the discharge location. Refer to the reference manual for supplemental guidelines and additional information under this section. Will this project disturb the Natural Drainage System or Outfall of the project Site? No. If yes, refer to section 1.2.5.4 for Supplemental Guidelines for additional information. No change in drainage is proposed for this site. Drainage will connect to the storm system in the adjacent road. • • • Version Date: October 7, 2019 Previous Version Date: February 20, 2019 TAB 5 (MINIMUM REQUIREMENT#5) • Minimum Requirement#5—On-site Stormwater Management Project thresholds that trigger Minimum Requirements#1 through #5, shall utilize the On-site Stormwater Management BMP's from List#1 for all surfaces within each type of surface in List#1; or, Demonstrate compliance with the LID Performance Standard. Projects selecting this option cannot use Rain Gardens. They may choose to use Bioretention BMP's as described in Chapter V-7— Infiltration and Bioretention Treatment Facilities to achieve the LID Performance Standard. Refer to this section of the reference Manual for all Feasibility or Infeasibility Criteria for List#1 and List#2. Is this project Flow Control Exempt? No (See Appendix 1-E: Flow Control-Exempt Surface Water). If yes, provide reasoning from the applicability section of 1-2.5.7 Minimum Requirement#7: Flow Control). If No, then the project triggers Minimum Requirement#7 (1-2.5.7) and possibly Minimum Requirement#8 (1-2.5.8). All sites are required to utilize BMP T5.13 — Post Construction Soil Quality and Depth. For each surface, consider the BMP's in the order listed for that type of surface. Use the first BMP that is considered feasible. No other on-site Stormwater Management BMP is necessary for that surface. Feasiblity shall be determined by evaluation against: 1. Design criteria, limitations and infeasiblity criteria identified for each BMP in this manual, and; 2. Competing needs criteria listed in Chapter V-5— On-site Stormwater Management. Lawn and Landscaped Area: • BMP T5.13: Post-Construction Soil Quality and Depth. (Attach Detail in Report) Refer to this site for requirements and specifications. All projects are required to utilize this BMP. http://www.soilsforsalmon.orq/pdf/Soil BMP Manual.pdf See Appendix 3 for the "Model Soil Management Plan for BMP T5.13"to be submitted with Drainage Report and Application Material. An alternate document acceptable to the City of Anacortes is a Test Report provided by the Soils Supplier that identifies the soils to be used meet the specifications outlined under Minimum Requirement 5. The specifications are in both WSDOT and CSI Formats. For specifications, refer to the above referenced PDF. This submittal can be a deferred submittal since most projects are not sure who the supplier will be at the time of building permit application. For projects that trigger Minimum Requirements 1 through 5, the Test Report will be provided to the Building Department. Projects triggering Minimum Requirements 1 through 9, the Test Report will be provided to the Engineering Department. BMP List#1 Roofs: (Provide feasible detail and maintenance and operations specifications in the report) 1. BMP T5.30: Full Dispersion: Feasiblellf infeasible, explain the criteria: Version Date: October 7, 2019 Previous Version Date: February 20, 2019 Requires native vegetation on site and there is no native vegetation on this site. Or, T5.10A: Downspout Full Infiltration: Feasible The soils report indicates the water table at greater than 50". The soils are medium sand with high infiltration greater than 7 inches per hour. All roof drains will be collected and directed to dry well on the south side of the house located 10 feet from the house and 50 feet from the top of the steep slope to the east. The drywell will service a roof area of 2,000 square feet and require 90 cubic feet of drywell per 1,000 square feet of roof or 180 square feet of drywell. A 6 foot by 6 foot by 5 feet deep will provide 180 cubic feet. The property to the south is the Stittwood Common Area and undeveloped. 2. BMP T5.14A: Rain Gardens is Infeasible. If infeasible, explain the criteria: NIA. Or, BMP T7.30: Bioretention Cells, Swales, and Planter Boxes Feasiblellnfeasible If infeasible, explain the criteria: N/A. 3. BMP T5.10B: Downspout Dispersion Systems: Infeasible If infeasible, explain the criteria: Dispersion requires a minimum of 25 feet of dispersion area and only 20 feet of setback is provided to the house and property line. 4. BMP T5.10C: Perforated Stub-out Connections; Feasible If infeasible, explain the criteria: N/A. Other Hard Surfaces: (Provide feasible detail and maintenance and operations specifications in the report) The driveway surface area is 1,141 square fee with a steep slope down to Brant Circle. 1. BMP T.5.30 Full Dispersion Feasiblellnfeasible If infeasible, explain the criteria: Requires native vegetation on site and there is no native vegetation on this site. 2. BMP T5.15: Permeable Pavements: Infeasible If infeasible, explain the criteria: The slope will exceed 15% and not feasible for permeable pavement. Or, BMP T.14.A: Rain Gardens: Infeasible If infeasible, explain the criteria: • The steep slope of the driveway and adjacent ground does not allow for a rain garden due to steep slopes exceeding 8%. 3. BMP T5.12: Sheet Flow Dispersion: Infeasible If infeasible, explain the criteria: Not sufficient space and on a steep slope. Or, BMP T5.11: Concentrated Flow Dispersion: Infeasible Version Date: October 7, 2019 Previous Version Date: February 20, 2019 If infeasible, explain the criteria: Not sufficient space and on a steep slope. The driveway water will sheet to the gutter line in Brant Circle and then southeast to the nearest catch basin approximately 200 feet away. Dale Herrigstad July 28, 2021 Applicant Signature Date • Version Date: October 7, 2019 Previous Version Date: February 20, 2019 BMP T5.13: Post-Construction Soil Quality and Depth Purpose and Definition Naturally occurring (undisturbed)soil and vegetation provide important stormwater func- tions including:water infiltration; nutrient,sediment,and pollutant adsorption;sediment and pollutant biofiltration;water interflow storage and transmission;and pollutant decom- position.These functions are largely lost when development strips away native soil and vegetation and replaces it with minimal topsoil and sod. Not only are these important stormwater functions lost,but such landscapes themselves become pollution generating pervious surfaces due to increased use of pesticides,fertilizers and other landscaping and household/industrial chemicals,the concentration of pet wastes,and pollutants that accompany roadside litter. Establishing soil quality and depth regains greater stormwater functions in the post devel- opment landscape,provides increased treatment of pollutants and sediments that result from development and habitation, and minimizes the need for some landscaping chem- icals,thus reducing pollution through prevention. Applications and Limitations Establishing a minimum soil quality and depth is not the same as preservation of nat- urally occurring soil and vegetation. However,establishing a minimum soil quality and depth will provide improved on-site management of stormwater flow and water quality. Soil organic matter can be attained through numerous materials such as compost,com- posted woody material, biosolids,and forest product residuals. It is important that the materials used to meet the soil quality and depth BMP be appropriate and beneficial to the plant cover to be established. Likewise, it is important that imported topsoils improve soil conditions and do not have an excessive percent of clay fines. This BMP can be considered infeasible on till soil slopes greater than 33 percent. Design Guidelines • Soil retention. Retain, in an undisturbed state,the duff layer and native topsoil to the maximum extent practicable. In any areas requiring grading remove and stock- pile the duff layer and topsoil on site in a designated,controlled area, not adjacent to public resources and critical areas,to he reapplied to other portions of the site where feasible. • Soil quality.All areas subject to clearing and grading that have not been covered by impervious surface,incorporated into a drainage facility or engineered as struc- tural fill or slope shall,at project completion,demonstrate the following: 1. A topsoil layer with a minimum organic matter content of 10% dry weight in planting beds,and 5%organic matter content in turf areas,and a pH from 6.0 2014 Stormwater Management Manual for Western Washington Volume V-Chapter 5-Page 911 Version Date: October 7, 2019 Previous Version Date: February 20, 2019 to 8.0 or matching the pH of the undisturbed soil.The topsoil layer shall have a minimum depth of eight inches except where tree roots limit the depth of incorporation of amendments needed to meet the criteria. Subsoils below the topsoil layer should be scarified at least 4 inches with some incorporation of the upper material to avoid stratified layers,where feasible. 2. Mulch planting beds with 2 inches of organic material 3. Use compost and other materials that meet these organic content require- ments: a. The organic content for"pre-approved"amendment rates can be met only using compost meeting the compost specification for BMP T7.30: Bioretention Cells, Swales,and Planter Boxes(p.959),with the excep- tion that the compost may have up to 35% biosolids or manure. The compost must also have an organic matter content of 40%to 65%, and a carbon to nitrogen ratio below 25:1. The carbon to nitrogen ratio may be as high as 35:1 for plantings com- posed entirely of plants native to the Puget Sound Lowlands region. b. Calculated amendment rates may be met through use of composted material meeting (a.)above;or other organic materials amended to meet the carbon to nitrogen ratio requirements,and not exceeding the contaminant limits identified in Table 220-B,Testing Parameters,in WAC 173-350-220. The resulting soil should be conducive to the type of vegetation to be established. Implementation Options:The soil quality design guidelines listed above can be met by using one of the methods listed below: 1. Leave undisturbed native vegetation and soil, and protect from compaction during construction. 2. Amend existing site topsoil or subsoil either at default"pre-approved"rates, or at custom calculated rates based on tests of the soil and amendment. 3. Stockpile existing topsoil during grading,and replace it prior to planting. Stockpiled topsoil must also be amended if needed to meet the organic mat- ter or depth requirements, either at a default"pre-approved"rate or at a cus- tom calculated rate. 4. Import topsoil mix of sufficient organic content and depth to meet the require- ments. 2014 Stomawater Management Manual for Western Washington Volume V-Chapter 5-Page 912 Version Date: October 7, 2019 Previous Version Date: February 20, 2019 More than one method may be used on different portions of the same site. Soil that already meets the depth and organic matter quality standards,and is not com- pacted,does not need to be amended. Planning/Permitting/lnspectionNerificatian Guidelines & Procedures Local governments are encouraged to adopt guidelines and procedures similar to those recommended in Guidelines and Resources For Implementing Soil Quality and Depth BMP T5.13 in WDOE Stormwater Management Manual for Western Washington. This document is available at:http:llwww.soilsforsalmon.org/pdf/Soil BMP Manual.pdf Maintenance • Establish soil quality and depth toward the end of construction and once estab- lished, protect from compaction,such as from large machinery use,and from erosion. • Plant vegetation and mulch the amended soil area after installation. • Leave plant debris or its equivalent on the soil surface to replenish organic matter. • Reduce and adjust,where possible,the use of irrigation,fertilizers, herbicides and pesticides, rather than continuing to implement formerly established practices. Runoff Model Representation Areas meeting the design guidelines may be entered into approved runoff models as "Pasture"rather than"Lawn." Flow reduction credits can be taken in runoff modeling when BMP T5.13: Post-Con- struction Soil Quality and Depth is used as part of a dispersion design under the con- ditions described in: • BMP T5.10B: Downspout Dispersion Systems(p.905) • BMP T5.11: Concentrated Flow Dispersion (p.905) • BMP T5.12: Sheet Flow Dispersion (p.908) • BMP T5.18: Reverse Slope Sidewalks (p.937) • BMP T5.30: Full Dispersion (p.939)(for public road projects) 2014 Stormwater Management Manual for Western Washington Volume V-Chapter 5-Page 913 Version Date: October 7, 2019 Previous Version Date: February 20, 2019 Figure V-5.3.3 Planting bed Cross-Section Mulch —J _ — -"" r Loose soil with ----- visible dark i. organic matter , 2.17,--......7 , ,.. .. li 4" Kt.,- ------,/t...\ ..- ,I, Loose or fractured subsoil Reprinted from Guidelines and Resources For Implementing Soil Cualiiy and Depth BMP T5,13 in WDOE Stormwater Management Manual for Western Washington,MO.Washington Organic Recycling Council NOT TO SCALE EM' Figure V-5.3.3 ligrilli Planting Bed Cross--Section DEPARTMENT OF Revised January20'16 ECOLOGY Please see http:/A i .: ecy.wa.goe/copyright.htmlfor copyright notice including permissions, State of Washington limitation of liability.and disclaimer. 2014 Stonmwater Management Manual for Western Washington Volume V- Chapters - Page 914 Version Date: October 7, 2019 Previous Version Date: February 20, 2019 Figure III-3.1.4 Typical Downspout Infiltration Drywell Roof downspout House Catch basin (yard drain) flour Roof downspout O 48 Inch diameter Plan View hole filled with 1Y2 -3"washed drain rock Roof Mark center of hole downspout with 1"capped PVC or other means flush House i Overflow with surface Topsoil r Splash block ram:A 'WA'1111)1(16llA�l�lnllrtr,,l�li�r l( !d(��� �.�l1�l r_i_ 2- sr¼gflow Fine mesh screen MIn.4"dia. T 3) PVC pipe � �� Catch basin o `.ni9, .,n (yard drain) S 4'min. g48 Inch diameter Sides of hole lined hole filled with 1 fy,p with filter fabric 3"washed drain rock C 15'min. ).� v IW QQ� � *&Skii n an_� Q Min. 1'above seasonal high groundwater table Section View NOT TO SCALE • WHAM. Figure III-3.1 .4 ■�■ Typical Downspout Infiltration Drywell DEPARTMENT OF Revised November 2015 ECOLOGY Please see httpiAvww.ecy.wa.gov/copyrighf.htmlfor copyright notice including permissions. State of Washington limitation of liability,and disclaimer. 2014 Stomiwater Management Manual for Western Washington Volume Ill- Chapter 3 - Page 457 Version Date: October 7, 2019 Previous Version Date: February 20, 2019 • •;••••:•:i•• .. ... .. . - "V• •C"‘•••,; .isils),'-'''''. I , :. :::,.....-• ,OWCKZ • 3 22;VS ,,,() isl ):=,,.i -n ..„3,1,- • . • .- " ' • " •• - 00g , • ,00.10. /,-t> ,09";,10riiik- 5 - -4-4 0- z V...'" .07 . •;.<:•;'F•" . ''''.:::•:- <St : .0° rn 431"4 t "(6. c>0 C0.•<9°\\, ". , (I .'Ilkk''''.5c'. •,..d,';''''';''''''''''''''''' ''' Oaf :: / "3 7 VOS 04'I : 0 -4- I 41'• ..:Ity c.„.,..-..z?-• S... • F.:•:. 'a 'de ,1.1 (9:' .•. . 7,31 i 6r 1;'7/Z ON 1 0% , ril 9 1 e-,..,.'.' ii i 'Y'A 041447/ 0.)4. - 0.. •• ,Vi 0 0 11411- t 4 •-(01.‘ In • ..rf-, z.,,,,,,. • •e•" :-,-;,- ''(1 .oirb.1*. " •t.• :-• 0, ,„.„01.•4 0\. ....,.;?:1;f:-. - - ,'. 0°40 1 1:•.f. - 'GC.W.-1 k ' .0.1 i,\ - ,<1 0 --..: 44 t 0 0: • •-)o \ •;:- .4 L I 1.'\''''' ' :„...6. 64 8 Pcs. .-k,9', c ,:•:, ee., ...,... . „et). vs. 0 '' ..\ po-;(04 .„14.) . - .-41.-.0,- ,,..1 . ,‘04" t O. tte,‘ ;$1' f ' .;;;:::::;.',. ...e.-;•.•:'''' F---- ••••.••...,. • ' ,.?' ,f;'• ':k5.:, 1° ';I:i:',... fi3 •Ise' ...7 le. ..eb • .c.ca -1 .,- , iosq ,,„,, .. ,v50..2*),!.0,:lv 1... .17 „s•G vt. . _,,..4/,S.: •ei/ cil . to...„_______-...------001.'-.^ .4 '''''',..: Alk• -GS' A . ' '' ''''' • :- V ....'''' - 073)1 s.,:, ':',.,,.. '• t4i, -t,i. 00-1j 0 :1'1' /*el'-'1.f...0- • JA .4 •.:::. '• , •,...4.,' ,,-.•:. .).. .1, /1 ,Sizi ;'1.7 3,1.--.4 ',, , ' We' il. • • us 49 lili- .4.,,,,,,c 1 ,s:sp .s.. -..;e:it•.•• 0-1.9 4,". 4, 4143.4,4i, 41. )i 1 0 ',:...f:• ',,,,,.... •..;-.;az ',:t:. ..,:•:.••••••••• ...z;?=-' it), .,„.4, ..ta 50:esT ....;•• .,..,:•••.-.,,:,-,-•,:'z,4.0,,,i ‹,,, - A ...c5ciSq • -..,13#el - s,• 0 %till. ...,..).:4-.fc.'"'. :::...,--A<4 • ,,,,_•'''6, .. ..--6 le) • -1 s •ei NS'4°I ."-°1 :,Ve, • d4674 1: ' '.-.; ••• •••• v:::-4 . . ..c:-., ' .-..,-,i.,:, ..,.. ., u:11 v:.... 04 .;\'.•:_i .4*$ • ..,"X,•••-•4- . .13..101,4Fc• . .9z1s•. 4..? e7•9 si.v ,, mak!. .1'..!..• ,:-....,‘," t --e,e.,1,‘ .i.N).e3.,)(.5* .00:‘, .,,, 1 . acsi, , .01 - ..49... ..5.- : --.<v.• 0 4t6,. ,Sreat .$.• R..q..) V :::i' V.0. ',5", ,.,t4r 07. ,0,,,,s•oci„, 0-1, ‘ , ...,• .... s ,,,? ....... ._. Ir. .. s..3.;, ...1..I.:: ,,..-- ..ST-•,,,,,es its-;P-Z, 61 i- - 4' ,p. •'40 I " P---- _,,,...,._ 1, ..!:.!, z rra I 0, ,,..0".0% f.,'N'Y\ ... 3.:• ) --g ..,- 4'f'.A.. .,....‘ .7' 7r, A. ,<.... ,z...., 940.A.48 •::•,-,.....,... . . ...,..,,,,,,,w• .•",,oss.,•:xi.,44 *,:ihiB • •r. ..s?,,,,. --...„..76,14...,• sc` , 4?..:A.,,-;0‘ .4, .,....-,).a„Aft w.9 .C4 Iti! At A . • s ..k•S4.•:,M 4. ''• ^ -1'"..-' '' -.1,:or0 tit), • tba)461.17\9•>,' sle'6° c€':: C dS 46.' •.‘•••••' "' 7q--- .* . • .,•,::::. • i- , )0,?.;.,-5'\' '. '' ''' A '''' 1,0 IP°. .Cri..4 *118"ji40401) 4 ...eic• V.:4 ' .. Cqs... ,,,PlAt'...'''''''.'''',(„. '' '.k‘r - ,,t4 Cl;• . t•1014fr G'• 1 c-N )„,lrot.i 4 481 a) • 11? 0 \''.4•'-' .1'6 64`' 1:'; , •••.f., - :gz•-$ •'. siDC.` •--il.... 7'4 I_ .....-1 -A •‘,...p. ,:pq ...- .v.,.:,,,,- N,..e3446°- • tp .,,...,..,..,-. ..._ vr..,-. T 4\f'. ...?1.-. ,,........is..•• Gra,..N.i r- 1 f-- „s% ,-.::s... 0 cn 6b-Ast -4% .*Z1 .<1•• -c''.;A.09Vf" • l•p..: '". Oa': ' '0?'''''. \-...."`e' 414 '"1 1 ---1 • ?.1 • 4V1 ..... .•:,.1 IR*. it. ' . 'e.:'•'" ...):P (> 1 co c -cs tivol9 41.. 44 • •). .....:. 1 e C = r3i IT1 0 CO I T' X 6 z w a. a_ < APPENDIX 2—Soils ReportAy or t •► f �r a,w `ffTr. Soils Report K� rR/ r 1 k< x ^��, Linda Spicher, Septic System Designer 1-;,- License 5100294 Iratei"/%7'/Dos/Es" R ft (360)708-3004 EXPIRES rt9_29. Project/Client: Keystone Building Services Page / of Contact: Kris Yuan Owner: Michael & Marry Tutty Site Address: 4118 Brant Circle,Anacortes,WA Parcel Number: 79603 Date on Site: 6/29/21 Map Unit, Natural Resources Conservation Service: 78 - Keystone loamy sand, 0 to 8%slopes Hydrologic Soil Group:A Soil Type1 Loading Rate2 Soil Log 1 0—24 brown medium sandy loam 4 0.6 24—50 tan loamy medium sand, roots 3 0.8 anticipated water table at 50"+ Soil Log 2 0— 16 brown gravelly medium sandy loam 4 0.6 16—50 tan loamy medium sand, roots 3 0.8 anticipated water table at 50"+ ' One of seven numerical classifications of fine earth particles and rock fragments as described in WAC 247-272A-0220(2)(e). 2 From Chapter 247-272A WAC: "Hydraulic Loading Rate"means the amount of effluent applied to a given treatment step, in this chapter expressed as gallons per square foot per day (gal/sq.ft./day). ill;) d:1lb( MITCHEL, DR 3917 MAL' RDPT MITCI LL DRIVE \ 3917. ' 33 R f MALLARD PT 003• MALLARD RT 4007 I�t�\ WHISTLE LAIC-RD 1 t ` MALLARD PT \ I� t 40(19 MITCHELLij�R }� 11 WHISTLE 4010 <.. 1 %,` 1. ars``t�1t LAKE-RI)MITCHELE i 401v i` '' `' �, a .tt MITCHELL DR ' MITCHI_LL 4105 �a C ° s 4019 , ORlVE•• MITCHELL `,. t,„- /2' l "r. •.41 C cel•4ely wH15T'Lr A 104 ,t_ DRIVE ..._a z fi3 µas•.;+`�� LAKE RD MITCHELLOR ' 4107 - t Ltx/%RI a+aL`* MITCHELL DR 4: �, / .+ •t3 R) k: BRANT CIRCLE 4108 .1 41EL09 0+r�r� IPAf� h41TLt IELL DR <- 4152 ; (` , BRANT � 41 4115 , itt 4116 ' MITCH L DR' MITCHELL ,RI 604 1RANT CI 4110 ` \, 608 5T MARYS DR 4 MITCHE OR 4203 4205 MITCHELL bRIV S ST MARYS DR BRA T 4205 FIDALGO BAY . 4205 Clit;l • BRAN CIRCLE 4209 \ ROAD ST MARYS DR \ r,� MITG:HFLL DR `. 4?.15 ST4209 fARYS DR 4204 \ RANTOiRCL MITCHELL17 �O . 4213 ' ST MARYS DR 202 BLUE HERON 4216 A MITCHELL , 4304 4302 BLUE FIERO CIRCLE \ MITCHELL 4205 4?.17 4YEiiSTL! WHISTLE ±;:,.�r FIDALGO BAY ROAD ST MARYS DR LAKC:RD "4 12ANT:CI 4218 4210 4 10 LAKE RD 4•,1?. f II'iCHELL DR BLUE HERON CIRCLEC • l WHISTLE LAKE RD 1 4210 ALOE HERON CIRCLE 4220 tt111'CHELL DF'� 1•i307 4348 BLUE HERON CIRCLE 4214 P+i1T't HCLL DRIVE1 i \ s, yST MARYS DR 4306 WHISTLE • BLUE HERON CIRCLE 4i i WI•II$I Lt; 4304 .(222 '�MITCHELL DR LAKE `.- RD M N•iTCLL DR T MAF;YS DR LAKE RD 4315 BLUE HERON 4309 4223 t"` k y Cl�) 4315 WHISTLE CIRCLE BLUE HERON t �T'CHfELL DR s.'. .r. LAKE RD 43°64310 )t w S f jv1ARYS DR CIRCLE i� \ LUE HERON CIRCLEBLUE HERON'CIRCLE G £) 510 4310 208 F7 S )"ri HADD. RD HADDON')RD LUr HERON CIRCLE HADDON ''i `�' ! oN WHISTLt HADDONRO HA[DDON4411 IIAONRD ADLAICERD HADDON R RUAI) DAD ROAO ROAD 4501 ST hdARYB ]R 304 220 210 204 114 `:,..,1 FIDALGO HADDON HADDON,HADDON HADDON ROAD �- BAY'fZOAD _. ._ \ June 29, 2021 1"=300' Legend 0 165 330 660 Ft 4 Tax Parcels Sections o I i 0.05 o 1 r r r 0.2 km 0 Data Ac uroey Warning;Ail GS data was crootdd from avaAeb1e publk retards and County Boundary cxlsrna IMP samats. MAP features haw been xciuxed to =h±ove a brat•fit ragt•,travcn.Wnile great rote was taken M lids proccos,maps Item diCmenl sowcoa rarely agree as to Ile pter1te lei"tidfl of goegrephIc foalares.flap dIsuepanttes can City Limits be as greet as301)feel, Cr yrynl 2021 • Version Date: October 7, 2019 Previous Version Date: February 20, 2019 CD cn oII CDNI • ` g CP O ���a- ` : ;"" .44 v / qt:N. S jddesign p� Vl Q EROSION CONTROL ��� �y vim •y„ ti* U ^ q� s'enlf�ra,a ra�art1rrawea•:.t�. Q- t !VOTESA♦ • MMIIL--'\.0 NN4tNMYi1YlV:Vila �� O � . /..n GC*C\t.'at teen enc.H,a. <M'ItaC'c1a la•atv'e.CO.w•N.yh ` �'� \t .! \ CO# .4•da CO•R/TC3.OL Otc I W ` CD DRAINAGE NOTES ��` 5 �� �' i�1 aas II or.t W ...` P C•6-•.ad. `� �� �� a. a .tM �a� . a�..• w ..a .. ,R. Y war C.... :a'..vw.atm.f4na w. �. �' 1 \ t.4GM?.M•M MS..aGYt '1� �"� ' qe ll'� . . i11i,. •.•• � .Onv.q q�Cltaa i\s LANDSCAPE NOTES • • r /C7♦ • ..Mtaw"a,v-.row w o 4a.wa•r tu• C7P60� '/ .' � I , }i •. _ � 1 •, •. • .�� ` ta[Ka o.wLsav \L MweYWOVJND VM^t^.fR0.1WP i \ES • I. \\`ir r1*r•r•ru� C �.+*C1.MNt.Y M al 4 la" tew M1...• /`y '// ' • "�` �. ` v �•a •� Y Co Sri••q.lC•Inn C4n,C0W-?.N % . . . . e , ..." \. :q •. .; ` e , .. y Q' .an rww •uea vs•n•et•1.W J ` ii` �/ .) 9 Nr aetY I✓'•e I Mt~et t.tew.. 1 i - ' : .� 1 w 9 ,oft..-w...Yr .wm-e. auw �.• • I.%. lay.. .. • • • . . .I'1 ��� p S awr tnlgH gat.Wee tl,w•t°�a`W1401 �"/� • • _ \ sir s. •. • .. • '�% . r ` ' L' l: , I I\ `• GPO 4'4M it wa•n.•a•Or.Q✓20 CN•welt /'- .��- . • . a . • • `V \\li • ' IYKwa yacat ^•••.(..0.wMa•P • �" c. aa..' • t / -1 . - \• .fa••1Kw - r'• \ v711"....: `• • ` ♦" i� LANDSCAPE{ CALCULATION6 . •1 . •cn wt Sofa 1 :aaaP. \ ��' \ I, `✓ '+ 11�\Pv1t•.ta ICM v••c.+a.x �1 ::..7• 1.4 ��^..[. :,\�!!! P)1¼\ �, ,� /k 6 Ot•rp•`�vV 0.•1PO1 a•c ra,•t PN+.C%• , t - . Q' •aclr ltou»•+wn cwM •m.alc •1r • . �' • ` . v.1 5, r\ / lawn.•v , tMMCe u••w.0 rug VIM MOl•n4 \ . .` • . . \ • 5 W . . . aKF7'FO VPI A.TLC I: a ' 4 a..tl) t• •Thssr• Y . 1t - ` t� •a `\ `\,ti`` \ t1,} la+w.t0 J '•: 9.1 • Val r1 a+pPdt „� 1. A v... .� '` a4t aa1lal I \\• .�t Ji `�\•\t\i\,i a jj 1a,•jf .w<.c+•t+w. A y 5It \V .ae tt n.tacua .ct • - • - . - - • J•' 1.�,1,'i. ;Jac z•.e 9 •.•aet.wt• I. f '1 ,1 r \ 11.�1� ,'l. p /` trattD.•m. K .• t / poet . . BAPS , !. ..A . ♦; \ &%. Pea ♦+ Y r•-t+ - �=------••-^---- 1 \,• l\ t M•9t[F.aa{• 9. NI (� •r.•van twN.fl.w mta+•tc••. a • + 111 C LI a` _-- 't•la .,OO can ba flee N . - *y� _ :t♦S; • • ', �1 PFIOPQSED �,t�l l `�l,\�1 �' �_ ��!' Id \\... CD fit'.,. • • ; • t. • _ •••\\ • :•# RESIDENCE + >, ) ?MortC %t CnwA*.:+-r.xa w•f.• y\ Y ♦•% . ,t ,y • • �\ 1\ \`1.NZ •\y�•• a Z an. CwcR is l+.Ycwr.••a•Ic.s aHA 1. • 1 "d• T .•. .1 : 'f \� 5 /'••� NI ^ wTe.>. •r' ... N:MCteM I •1 I • 1 A• .t t \` ,l . . ��..ar �,2J♦'� } ~ V Law Crn ieoc'%s# ....P 'j 1� . Y b. .a, \ [•i. ++y! a. N .........tw, u.ti•I.ct cv cc eit . t • 1' . - 1 t . - •• I IQ OY CO.M•Nag a W..Pt. Pa S - I _ •�• . _ _ 11 . 0 L ]•a .."' .• • • tl ?tW VJpe tn&CT 0•CO• f• 1 • \ 1C 11t..✓ \ \ / • Vf SITE & LANDSCAPE _ `• _ dt ` . / ' Z LEGEND 1• Y i _ - / _ e , . • ,sv.' • . . . . . . /•�-`'� a't µme/ el ttecw•,a* •, � - •• r • • • ^S, - N ' YA•• al k I- 00 t-e t. t'- . - t • Via . - . . y • . :Y d (I) Now A.fil AKA! N At l "i I.#"..4°. , attilli n At wi't11 WK.WUMs \ fi 7W1 x..tl•� ii•_o„r I a..ee.tetaa'.rarer /- P.9M0 Fartr la..vatt:. warn.,aVl:a,.tuw.` ►\ i„%OCO w'n,•r C•:E C>:irxt • 1y -a'tP•d- 1 a SITE & LANDSCAPE PLAN — - — no.off rtlrtnl t:atr .r • it' ^" •'""" CONSTRUCTION ENTRANCE CROSS SECTION A2 I 3 it Soli Map—Skagit d b Brant Cir Area,a Washington) � i N . :0. a'i0 W-"Rr I • I . 1 < u r t if. ...fli `_____ sx . .'aL'. .0 " 'A •WNI3'N - A: ' I. 40' Yl t3'tl 'r { .. . r..' i s , a r ,s 4 r� , g ti (SI F- . is 14, • • or flip `rp ra It � 7 41 '. y .:. itei C , iC ' r` r r n , tart e I x , i O &WO 5250 SEMO MO '5290 0 6�170 �1� 52)100 sato 5E510 SI9G?0 525590 0 p� 'mot• to b iR M+P`-c' : 1:'765tfpnacicnAtattam(U 'x8.5ishc'tS. NHS ik0 35 70 140 210 Map p c %n:wet,mar Caner cOortrnt WCES-9° Edge tics: lflM Zon ION WGSS4 11 t ism Natural Resources Web Soil Survey 6/29/2021 \j) in Conservation Service National Cooperative Soil Survey Page 1 of 3 Version Date: October 7 , 2019 Previous Version Date : February 20 , 2019 Skagit County Area, Washington AA79—Keystone loamy sand, 8 to 30 percent slopes i Map Unit Setting � /, ,TA a National map unit symbol: 2hx3ar ��• �'� �' �# • Elevation: 0 to 300 feet " • ,n► '� 6 'er • h 0 Mean annual precipitation: 23 inches �� 5i.. - ` ER • Mean annual air temperature: 50 degrees F cN + • Frost-free period: 180 to 220 days ,v: o DeS1GNER Farmland classification: Not rime farmland �` *��``~ Iw 9-r �' � � p DES 09-�9-�.4 Map Unit Composition o Keystone and similar soils: 95 percent Q Minor components: 5 percent ® Estimates are based on observations, descriptions, and transacts of the mapunit. Description of Keystone Setting u Landform: Moraines, kames o Parent material: Glacial outwash Typical profile 9 H1 - 0 to 7 inches: loamy sand D l-l2 - 7 to 15 inches: loamy sand d H3 - 15 to 60 inches: sand Properties and qualities a Slope: 8 to 30 percent o Depth to restrictive feature: More than 80 inches • Drainage class: Excessively drained a Capacity of the most limiting layer to transmit water (Ksat): High to very high (5.95 to 19.98 in/hr) o Depth to water table: More than 80 inches a Frequency of flooding: None a Frequency of ponding: None ✓ Available water capacity: Low (about 3.7 inches) Interpretive groups • Land capability classification (irrigated): None specified o Land capability classification (nonirrigated): 4e o Hydrologic Soil Group: A o Forage suitability group: Droughty Soils (G002XN402WA) a Other vegetative classification: Droughty Soils (G002XN402WA) 9 Hydric soil rating: No Minor Components Bow 6 Percent of map unit: 5 percent O Landform: Terraces o Other vegetative classification: Seasonally Wet Soils (0002XN202WA) G Hydric soil rating: Yes Version Date: October 7, 2019 Previous Version Date: February 20, 2019 APPENDIX 3 — Model Soil Management Plan for BMP T5.13 An alternate document acceptable to the City of Anacortes is a Test Report provided by the Soils Supplier that identifies the soils to be used meet the specifications outlined under Minimum Requirement 5. The specifications are in both WSDOT and CSI Formats. For specifications, refer to the above referenced PDF. This submittal can be a deferred submittal since most projects are not sure who the supplier will be at the time of building permit application. For projects that trigger Minimum Requirements 1 through 5, the Test Report will be provided to the Building Department. Projects triggering Minimum Requirements 1 through 9, the Test Report will be provided to the Engineering Department. Version Date: October 7, 2019 Previous Version Date: February 20, 2019 DEFERRED SUBMITTAL: PROVIDE A TEST REPORT FROM SOILS SUPPLIER TO THE BUILDING DEPT. PROJECT INFORMATION "Model Soil Management Plan for BMP T5.13" age# of pages Complete all information on page 1; only site address and permit number on additional pages. Site Address / Lot No.:_. Permit Type: Permit Number: Permit Holder: Phone: Mailing Address: Contact Person: Phone: Plan Prepared By: ATTACHMENTS REQUIRED (Check off required items that are attached to this plan) Site Plan showing, to scale: Areas of undisturbed native vegetation (no amendment required) New planting beds and turf areas (amendment required) Type of soil improvement proposed for each area Soil test results (required if proposing custom amendment rates) Product test results for proposed amendments AREA # (should match Area # on Site Plan) PLANTING TYPE Turf Undisturbed native vegetation Planting Beds Other: SQUARE FOOTAGE OF THIS AREA: square feet SCARIFICATION inches (depth) of scarification needed to achieve finished total 12" loosened depth. Subsoil will be scarified PRE-APPROVED inches of compost or imported topsoil applied AMENDMENT METHOD: X 3.1 (conversion factor, inches to cubic yards) PRODUCT: Topsoil import = cu. yards per 1,000 sq. ft. Amend with compost X ,000s sq.ft. in this area Stockpile and amend = cubic yards of amendment -> -> —* — -> QUANTITY: CU. YDS. (_ cu. yds. stockpiled) (needed to cover this area to designated depth) CUSTOM AMENDMENT Attach test results and calculations. Topsoil import inches organic matter or topsoil import PRODUCT: Topsoil & compost lift X 3_1 Amend = cu. yards / 1,000 sq. ft. Stockpile and amend X ,000s sq.ft. in this area ( cu. yds. stockpiled) = cubic yards of amendment — —* --> - > QUANTITY: CU. YDS. MULCH ,000 sq.ft. PRODUCT: X 6.2 (conversion, to give 2 inch mulch depth) = cubic yards of mulch - > —f - -> -+ -> QUANTITY: CU. YDS. TOTAL AMENDMENT/TOPSOIL/MULCH FOR ALL AREAS (complete on page 1 only, totaling all areas/pages in this Plan) ❑ Product#1: U Quantity: cu. yds. ❑ Test Results: % organic matter C:N ratio <25:1 (except mulch, or <35:1 for native plants) "stable" (yes/no) ❑ Product#2: ❑ Quantity: cu. yds. ❑ Test Results: % organic matter C:N ratio <25:1 (except mulch, or<35:1 for native plants) "stable" (yes/no) ❑ Product#3: ❑ Quantity: cu. yds. ❑ Test Results: % organic matter C:N ratio <25:1 (except mulch, or <35:1 for native plants) "stable" (yes/no) Date: Inspector: Approved: Revisions Required: Date: . Inspector: Approved: Revisions Required: Version Date: October 7, 2019 Previous Version Date: February 20, 2019 APPENDIX 4— Determining Construction Site Sediment Damage Potential (Appendix 7—NPDES Phase II Permit) Note: See attached. All projects within the City of Anacortes are required to complete that document under Appendix 4. Western Washington Phase II Stormwater Permit APPENDIX 7 - Determining Construction Site Sediment Damage Potential The following rating system allows objective evaluation of a particular development site's potential to discharge sediment. Permittees may use the rating system below or develop alternative process designed to identify site-specific features which indicate that the site must be inspected prior to clearing and construction. Any alternative evaluation process must be documented and provide for equivalent environmental review. Step one is to determine if there is a sediment/erosion sensitive feature downstream of the development site. If there is such a site downstream complete step two, assessment of hydraulic nearness. If there is a sediment/erosion sensitive feature and it is hydraulically near the site then go to step three to determine the construction site sediment transport potential. ii. STEP 1 —Sediment/Erosion Sensitive Feature Identification Sediment/erosion sensitive features are areas subject to significant degradation due to the effect of sediment deposition or erosion. Special protection must be provided to protect them. Sediment/erosion sensitive features include but are not limited to: i. Salmonid bearing fresh water streams and their tributaries or freshwater streams that would be Salmonid bearing if not for anthropogenic barriers; ii. Lakes; iii. Category I, II, and III wetlands; iv. Marine near-shore habitat; v. Sites containing contaminated soils where erosion could cause dispersal of contaminants; and vi. Steep slopes (25% or greater) associated with one of the above features. Identify any sediment/erosion sensitive features, and proceed to step two. If there are none the assessment is complete. iii. STEP 2— Hydraulic Nearness Assessment Sites are hydraulically near a feature if the pollutant load and peak quantity of runoff from the site will not be naturally attenuated before entering the feature. The conditions that render a site hydraulically near to a feature include, but are not limited to, the following: i. The feature or a buffer to protect the feature is within 200 feet downstream of the site. ii. Runoff from the site is tight-lined to the feature or flows to the feature through a channel or ditch. August 1, 2013, Modified January 16, 20115 Appendix 7- Determining Sediment Damage Potential Page 1 of 3 Version Date: October 7, 2019 Previous Version Date: February 20, 2019 A site is not hydraulically near a feature if one of the following takes place to provide attenuation before runoff from the site enters the feature: iv. Sheet flow through a vegetated area with dense ground cover v. Flow through a wetland not included as a sensitive feature vi. Flow through a significant shallow or adverse slope, not in a conveyance channel, between the site and the sensitive feature. Identify any of the sediment/erosion sensitive features from step one that are hydraulically near the site, and proceed to step three. If none of the sediment/erosion sensitive features are hydraulically near the site, the assessment is complete. vii. STEP 3—Construction Site Sediment Transport Potential Using the worksheet below, determine the total points for each development site. Assign points based on the most critical condition that affects 10% or more of the site. If soil testing has been performed on site, the results should be used to determine the predominant soil type on the site. Otherwise, soil information should be obtained from the county soil survey to determine Hydrologic Soil Group (Table of Engineering Index Properties for step 1.D) and Erosion Potential (Table of Water Features for step 1.E) When using the county soil survey, the dominant soil type may be in question, particularly when the site falls on a boundary between two soil types or when one of two soil types may be present on a site. In this case, the soil type resulting in the most points on the rating system will be assumed unless site soil tests indicate that another soil type dominates the site. Use the point score from Step 3 to determine whether the development site has a high potential for sediment transport off of the site. Total Score Transport Rating <100 Low C 100 High A high transport rating indicates a higher risk that the site will generate sediment contaminated runoff. Construction Site Sediment Transport Potential Worksheet A. Existing slope of site (average, weighted by aerial extent): Points 2% or less •• 0 >2-5% 5 >5-10% 15 >10-15% 30 >15% 50 B. Site Area to be cleared and/or graded: <5,000 sq. ft 0 5,000 sq. ft. — 1 acre 30 >1 acres 50 C. Quantity of cut and/or fill on site: <500 cubic yards 0 500—5,000 cubic yards 5 >5,000 — 10,000 cubic yards 10 >10,000 —20,000 cubic yards 25 >20,000 cubic yards 40 D. Runoff potential of predominant soils (Natural Resources Conservation Service): Hydrologic soil group A 0 Hydrologic soil group B 10 Hydrologic soil group C 20 Hydrologic soil group D 40 E. Erosion Potential of predominant soils (Unified Classification System): GW, GP, SW, SP soils 0 Dual classifications (GW-GM, GP-GM, GW-GC, GP-GC, SW-SM, SW-SC, SP-SM, SP-SC) 10 GM, GC, SM, SC soils 20 ML, CL, MH, CH soils 40 F. Surface or Groundwater entering site identified and intercepted/: Yes 0 No 25 G. Depth of cut or height of fill >10 feet: Yes 25 No 0 H. Clearing and grading will occur in the wet season (October 1 — May 1): Yes 50 No 50 TOTAL POINTS 25 1 If no surface or groundwater enters site, give 0 points. APPENDIX 5-Site Plan with all applicable information (Minimum Size 11x17 at a legible scale) \ F \ 3MP T5,13 POST-CONSTRUCTION BMP C154 \P /C107 SOIL QUALITY AND DEPTH ON ALL CONCRETE \ CONSTRUCTION DISTURBED 50ILS B WASH-OUT , ENTRANCE 1 33 � �-, ILT FENCE `c CRUSHED RO BASE 2 �, 05 - ri'' \'1\ l Rl EWAY , 0�, \ G1' F 1, 41 SF P79603 4.N 4118 BRANT CIRCLE , v. 11,648 SF ` BMP C233 tr, c dcl am` SILT FENCE HOUSE N a N,a 12,000 SF 0 \\ cz r17„A _ o V a n. (II . . tP Q l e s. 50' B4�P C�,•0 TEMP. ..p \.. 'I SEDIMENT TRAP 8' X 8' SURFACE AREA f\ 10' OVERFLOW ' BMP C123 ,P% SEE DETAIL l \ 16' � HBI,H P CVISIBILITY 2103 4',oi TEMPORARY SOIL FENCE STOCKPILE LOCATION. COVER WITH STRAW OR VISQUEEN BMP T5,10A DOWNSPOUT LOT AREAS FULL INFILTRATION SITE 11,648 SF DRYWELL HOUSE = 2,000 SF 180 CF DRIVEWAY = 1,141 SF 6 X 6 X 5' DEEP PATIO = 264 SF SET BACK FROM STEEP DECK = 452 SF SLOPE 50' TOTAL IMPERVIOUS = 3,857 SF PERVIOUS = 7,791 SF' GRAPHIC SCALE 15 0 15 30 60 ( IN FEET ) 1 inch = 30 ft. HERRIGSTAD ENGINEERING & SURVEYING ECS PLAN 4320 WHISTLE I,ARE ROAD 4118 Brant Circle ANACORTES, WA 98221 299-8804 July 31, 2021 APPENDIX 6 — Documented Site Photos (Show all directions of the site, including frontage) Location : 4118 Brant Circle Description of the photo : From Brant Circle. Photo taken by : Dale Herrigstad 7 -28 -2021 • • ) 4.1/416 C` 6 .T q ire ~' t ly r . rA . Ilk [> J ' �. 1Sr' .. r " �,40 4,r KKs�att 4,r'' r ; f ,% '0'f - 1/� ; *t, .i 4. [-..cb . e7 � >. �4�,. r 4- . +L,sj '` • [ >• K . :3 ' E(• =uel►(.� .f� N N> y .. t )•r.. tsnAv 'R Y - r,Vr ♦ • m. • �. r '� -�,� "' .' . . �f ? �-r� . �• ,, 4.. / y �,/ 1 �, r•'....dr,,V yy 4 •%ly "4 y f. Y 4 s r e r r aV" �f.,a b, ::17. . 4. . ' i1° > Z �.'y-r,) y DY1W 4 [ ' I • j / M A4_ K" , r � ��� * �! ,��r.� O� c �Rtr „ a f [ •, : n ti �: �' Y � • '. {"""{• ^ !- .44;: �t�.y`ti� ' 1 ' ' r / " .' - 14 ' , 'F' e ra',an't o -) lr:^e/Wei� yd'"<t wilt, Fr }m 4" y6 r !e+ Y,[ yr: rrA• i • {.,_%". '. `t '< •P e r/ r r ` j • ,a'C £ ,. ,.,/� lL?''Y 1 r, 4 �[t`,,4(., ,}AI.;te ,/p r�'rt,✓ t k�ai�,1 Ck" � < ,al.S, i• s'14'-r,2 1"/ Gy 't#s .< 4, 4 §fin�..re $ I ' '' ' r,.'' x : r"",. 'e „. / r •i r , � 2 i �,•V,�! < r/ �:r r e W�,�- •s - y b.�' .a !1 p r �e e l.� , ,.;:: sit 't r '�v1RP nz r /yl CY $ �£ . r •4 �e r a / y� s/r%` ), N,rtel,, s ' 4 -, row"I` k > r> r 1 /pn r: g'e ➢/ Y Pi:W <p v . ` tli J r' .``. � ' Y^ �T Y 1'• A ` • r - ,•i 4. ,„It< at ..�4'.0.1 .tra Y[t{/11 ,• fir . eo-(9k �N ♦r . r`7 'an > tea J�l /, r r 4'(L 1YRfi 1 r . .a r.. .e /Mt' i'�A•~ Yam, }�.ra fiK - .. — y< l xxat U . on lot Iookin • north . r i " " ', i '{� ,.slit,. r ry-S� I14' • l; . f• �4 I . r y• dT.r. 4- ` `. r I r APPENDIX 7— Drainage BMP Facility Maintenance Covenant Note: To be recorded prior to: 1) Temporary Certificate of Occupancy; 2) Final Certificate of Occupancy, and or; 3) Final Acceptance of the project. This is Covenant is required for any Permanent Stormwater Facility constructed on a project site. The applicant should work with the the City of Anacortes Engineering Department on formalizing the document for recording. There are no maintenance covenants for Drywell. erfrS7 `f 5. ID Lbw Ius17b•-c L., I N�71.-'12L�+