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HomeMy WebLinkAboutPermit File 1416 Latitude Circle co 4: ,r CERTIFICATE OF OCCUPANCY This is to certify that the below listed building or structure has been inspected and occupancy is hereby authorized: Description: New single family residence Location: 1416 Latitude Circle Owner: Landed Gentry Development inc. Constructed by: Landed Gentry Development Inc. Building Permit#: BLD-2017-0286 Date issued: July 21, 2017 Use Zone: R-2 Dated: January 3, 2018 Authorizing Official: (f,4/1 • CITY OF ANACORTES "AS-BUILT" ewe atorm 1-�1. CONTRACTOR: h T t�l��`•\.wok 1.5 "Wk, , ,A„ 1 P'LATIDIVISION: tir tO \\ BLOCK. ,,--,_ 6.7"„qe.e....--, "4....,----- LOT ADDRESS: 11-1 1(01 It7Q.... l.Ar_ DALE: 'g/14t/1 , PERMIT# Z‘-: - p l OAU SCALE = , S i E E -T: . _ , , . i . it . , 1 ..,_ .....: , _ .,,,, ' , , :,-, v . ,, ,. . - i , INN : eliri ' . ,,,d: 6 \ � I-I-- IT'll---.; r ,.. . , . ,' -4L • . .0 A P , ;.;� CP. 111 ..,''. ' 17411/1 ,i, , 4---- L , _ 0 . ,,. _ I ______ , L•CA ,STREET(S)ON GRID MAP t �` Z-'. • 0 O . City of Anacortes Invoice/Permit#: BLD-2017-0286 904 6th Street "�'""'! �' P.O.Box 547 Applied date: 0 513 012 0 1 7 • i . .4 Issue date: 07/21/2017 ,, Anacortes, WA 98221-0547 ;.Y . Expire date: 0111712019 = (360) 293-1901 1 Job Address: 1416 LATITUDE CIR Permit Type: Single Family Residence Permit ANACORTES WA 98221 Project: APN: Remarks: Construct new single family residence per approved plans Owner: 48 NORTH ON FIDALGO ISLAND LLC Contractor: LANDED GENTRY DEVELOPMENT INC Address: PO BOX 319 Address: 504 E FAIRHAVEN AVE ANACORTES WA 98221-0319 BURLINGTON WA 98233-1846 Phone: Phone: (360) 755-9021 License#: LANDEGD062D4 General Information: Fees: Occupancy Group it-1 Plan Review Deposit 200,00 Use Zone R2 Building Permit Fee 2,544.95 Basement Square Footage 1058 Plan Review Fee 1,454.22 Lot Area 7682 Mechanical Permit Fees 114.65 1st Floor Square Footage 2109 Plumbing Permit Fee 160.00 Garage Square Footage 745 State Building Code Fee 4.50 Deck Square Footage 276 Sewer Inspection Fee 50.00 Porch Square Footage 84 Storm Drain GFC-Residential 1,550.93 . Building Valuation 377000 Sewer GFC-Residential 9,206.33 # Forced Air Furnace <=1,000 1 Park Impact Fee 615.00 #of Backflow Devices 1 Traffic Impact Fee 900.00 #of Bathtubs 3 Total Calculated: 16,800.58 #of Clothes Dryers 1 Deposits/Receipts: 200.00 #of Clothes Washers 1 #of Dishwashers 1 Total Due: 16,600.58 #_of Gas Outlets 5 #of Gas Fireplace 1 #of Gas Piping 1 2 -q o 10 -.k a - #of Gas Water Heaters 1 m a `� n #of Water Piping 2 .0 rr ► #of Hose Bibbs 3 Dr ,-rt r• rt. �1 1 W #of Kitchen Sinks 1 fil Dr o n I ,, iv #of Lavatories 4 ' #of Range Hoods 1 w N y a T. PK ""#of Showers 1 R - = #of Ventilation Fans 4 fi a Z 'D #of Water Closets 3 -- rp , 1 rG B .. ,...., THIS PERMIT BECOMES NULL AND VOID IF WORK OR CONSTRUCTION AUTHORIZED IS NOT COMMENCED WITHIN 180 DAYST: O CONSTRUCTION OR WORK IS SUSPENDED OR ABANDONED FOR A PERIOD OF 180 DAYS AT ANY TIME AFTER WORK IS COMMEN;gEi.--jl I) HEREBY CERTIFY THAT I HAVE READ AND EXAMINED THIS APPLICATION AND KNOW THE SAME TO BE TRUE AND CORRECT.ALL PROCjIS{ I+TS OF LAWS AND ORDINANCES GOVERNING THIS TYPE OF WORK WILL BE COMPLIED WITH WHETHER SPECIFIED HEREIN: N )T k-tE • GRANTING OF A PERMIT DOES NOT PRESUME TO GIVE AUTHORITY TO VIOLATE OR CANCEL THE PROVISIONS OF ANY OTH tA1 QR' LOCAL LAW REGULATING CONSTRUCTION OR THE PERFORMANCE OF CONSTRUCTION. , .• SIGN/NUKE S Ekk OF OWNER OR AUTHORIZED AGENT ISSUE T •` 1.-F,, LANDEDJut. 12 2,, Cfne GENTRYOF AN HOMES AND COMMUNITIES LANDED GENTRY 504 East Fairhaven Avenue Burlington, WA 98233 (360) 755-9021 Transmittal Sheet To: Groc Fyrrce From: Steve Baughn Re: 48 North, Lot 6, 1416 Latitude Circle Date: July 11, 2017 Planning, Community& Economic Dev. CC: 0 Urgent ❑ For Review ❑ Please Comment 0 Please Reply 0 Please Recycle Attention: Kait Nelson Re: Responses to your memo to Groc Fyrrce dated June 20, 2017, regarding the above reference project. • The City can no longer accept Small Parcel Stormwater Plans. Etc... Response: ,) sets ol PI' have been attached with this submittal, thong wllII the Minimum Requirements I-5, as 1 was not sure if the latter was also a requirement. • The plans reference specifications for WSDOT BMPs. Etc... Response: All t#Mll's have been changed an the Erosion Curarul flan. > s well as in the S W PPP, to retleei the proper DOE references, • Plans are not showing adequate protection for drains. Etc... Response: I{,:li:1-en4c Iti the drain protection, BM!) C220: Slurni DllMin Inlet Proteclion, II s been added to the fErosioll Control Plan in both ensile and offsite locations Willi appropriate referenzce to the type of protection ilk each location. List of items included with this transmittal: (2) 13 Elements of SWPPP (Construction Stormwater Pollution Prevention Plan), with Exhibits "B" (written descriptions), and "C" (list of primary BMPs). (2) Complete Residential Stormwater Plan Checklist—Mininum Requirements 1-5. (2) Revised Erosion Control Plan sheet 1 of 2 and 2 of 2, full sized. (2) Revised Erosion Control Plan sheet 1 of 2 and 2 of 2, reduced to 11"x17". C Attention: Kevin Cricchio Re: Responses to your memo to Jack Reinstra dated June 30, 2017, regarding tree protection at 1502 Latitude Circle, Lot 9 of 48 North. While the memo did not pertain to Lot 6 of the same subdivision, I assumed that the requirement would be the same for each lot. Therefore, I added the tree protection notes to the Site Plan and informed the Job Site Superintendent that once the protective fencing was installed at drip line plus 6 feet,he needs to call for an inspection. List of items included with this transmittal: (2) Revised Site Plans, sheet 1 of 1, full sized. (2) Revised Site Plan, sheet 1 of 1, reduced to 11"x17". JUL 1 2 201/ • July 3, 2017 Anacortes Planning &Community Development Dept. Attn: Groc Fyrrce RE: Plan review notes for proposed home at 1416 Latitude Circle Please note the following items have been addressed as described: 1. The "scale" has been added to the Main Floor Plan on sheet A3.1. 2. A second copy of the engineering for the Lowman plan is attached 3. The stairs, landing and front porch are allowed to be 10' from the property line on this particular lot. Please see sheet 3 of 3 of the 48 North Plat& PUD AF 201705020028, Setbacks, Front Yard and Rear Yard, which is attached and highlighted. 4. Detail#6, Sheet A2.2 now indicates that deck joist hangers are to be hot dipped galvanized, or equal. 5. The attachment for the deck ledger is noted on detail#6, Sheet A2.2 and on Sheet A4.1 6. Deck hold down device locations are shown and called out on Sheet A4.1. I have provided 2 full copies of the three sheets with the above change, as well as a second copy of the engineering and a copy sheet 3 of the 48 North Plat& PUD. Jack Reinstra Landed Gentry Fyrrce, Groc From: Fyrrce, Groc Sent: Friday,June 30, 2017 1:41 PM To: 'Jack Reinstra' Cc: Ingalls, Paul; Nelson, Kait Subject: Document2 Attachments: Document2.docx; 1416 Latitude Plan Review Landed Gentry,doc Hi Jack, The Plan Reviews have been done. The following are the results of the review: Please see my Plan Review Notes for corrections that needs to be addressed so that I can finish my review. Stormwater review was done and our reviewer, Kait Nelson, has corrections in her attached document that needs to be addressed so that she can finish her review. All other reviewers approved the plans as is. Please submit a transmittal letter stating the correction required, and how it was corrected, for each item, on each review, and address it to the appropriate party. You do not have to submit separate site plans, if all the items required in each review can be clearly and legibly shown on one site plan. If you have any questions, feel free to address them to the appropriate party. Best regards, Groc Fyyrrce Building Inspector/Permit Technician City of Anacortes (360)293.1901 l freperae•ff 4 c'C+m7+frr,rifeA;fAirrrr weeld r rxrrlr'rrrr My Irrcornlrbg and outgoing email messages are subject !ri public disclosure i eaurremenis per RCW 42.56. 1 Anacortes Planning& Community Development Dept. ctiT Y 4�, Permit Center � 6° P.O. Box 547,Anacortes,WA 98221-0547 PH(360)293-1901 °p4 Don Measamer, Building Official,Planning Director FAX(360)293-1938 June 30, 2017 Jack Reinstra 504 E. Fairhaven Ave Burlington, WA 98233 RE: Plan Review notes for the proposed New Single Family Residence at 1416 Latitude circle Please address the following items so I can complete the plan review. 1. Please indicate scale on Main Floor Plan. 2. Please provide a second copy of the engineering. 3. Stairs, landing and part of the porch that is over 18" above grade appear to be in the front 20' setback, which is not permitted per our zoning code. 4. Please indicate on the plans that the deck hangers that come in contact with pressure-treated wood needs to be hot-dipped galvanized or equivalent. 5. Label on plans how ledger is to be attached to the house and the screw/bolt pattern of the lags or bolts. 6. Please indicate on the plans, where the DDT2Zs are to be installed. Please contact me if you have any questions about these notes. Sincerely, Groc Fyrrce Building Inspector City of Anacortes 360-293-1901 DEPARTMENT OF PLANNING, COMMUNITY& ECONOMIC DEVELOPMENT DATE: June 20, 2017 TO: Groc Fyrrce Building Inspector & Permit Technician FROM: Kait Nelson Associate Planner PCED SUBJECT: 1416 Latitude Circle, BLD-2017-0286; Stormwater Plan Review Several revisions are necessary to complete the stoiuiwater review: • The City can no longer accept Small Parcel Stormwater Plans. This was noted on several plans for previous approved Landed Gentry building permits. The applicant needs to provide a Stotnnwater Pollution Prevention Plan(SWPPP). I suggest they use either the DOE's template or the 13 Elements document, both of which are on the City's website. Please provide the applicant with these documents, or the links. • The plans reference specifications for WSDOT BMPs. The DOE is requiring that approved plans reference the BMP standards from the DOE's Stormwater Manual, 2012. The number and the name of each BMP need to be shown on the site plan&written within the SWPPP.Ex: C105, Construction Entrance; C121, Mulching; C15, Concrete Washout Area; C117, Construction Road/Parking Area; etc. • Plans are not showing adequate protection of drains. The applicant needs to address this. All other BMP proposals look good. ANACORTES PUBLIC WORKS DEPARTMENT o1.11E O4s, Steven Lange, Project Manager -7 P.O. BOX 547,ANACORTES,WA 98221 PH(360)293-1920 E-MAIL:stevel@cityofanacortes.org FAX(360)293-1938 Memo Date: June 23, 2017 To: Paul Ingalls, Plans Examiner From: Steven Lange Subject: Site Plan Review#1 for 1416 Latitude Circle cc: Eric Shjarback, Justin Symonds The submitted site plan for 1416 Latitude Circle was reviewed by the Public Works Engineering Department on June 29, 2017. • 06-29-17: Submittal to Public Works Engineering • 06-29-17: Public Works review and memo back to Building Department The following comments are provided: • No additional frontage improvements are required with this proposal. • Please issue the building permit when ready. e. • Water • Wastewater • Streets • Storm Drainage • Engineering • Solid Waste • Transportation •Equipment • Capital Projects • Development Services BUILDING PERMIT APPLICATION REVIEW: DATE: arfVA-- PERMIT#: atem..,___c_vio SITE ADDRESS: 1\4 \,, ,{y 1,y L (c.c.., PARCEL#: SURVEYED-SITE-PI AN-: -"yes --no NO 9- 1 11\10).. . .' • Does site plan & dimensions match survey yes ❑ no 1 ZONING DISTRICT: Y .. e__ , • Is the land use permitted in zone .4:El yes ❑ no 1 I CRITICAL AREAS: ' ! • Is any critical areas located either on the subject property or within 300 feet ❑ yes II no SHORELINE JURISDICTION: 1 --(-- 1 • ❑ yes ❑ no ` • Shoreline Environment: Setback from OHWM: • Is the land use permitted in environment,i 0 yes ❑ no IMPERVIOUS SURFACE MAXIMUM: f) -- MINIMUM SETBACKS: y,,,ti, \-- 4 - \----- �,J yj \u, i.C.:\ klUnk 1?`' C l MINIMUM LANDSCAPING: 2 0,zsi ci MINIMUM #OF TREES: it J 4, 1 MAX LOT COVERAGE: 0( \3 i 10\ (..,, MAX PERMITTED HEIGHT: a r 35) u ii CJ\ EASEMENTS: Print Window Page 1 of 1 Details for Parcel:P133664 Jurisdiction: ANACORTES Zoning Designation; Please contact the city of ANACORTES for ANACORTES zoning information. Parcel Number XreflD Quarter Section Township Range P133664 6042-000-006-0000 SE 22 35 01 Owner Information Site Address(es) Map Links 48 NORTH ON FIDALGO ISLAND LLC Anacortes,WA(Jurisdiction,State) Open in Map PO BO 319 Zip Code Lookup I Site Address information Assessor's Parcel Map: ANACOR-T-ES,-WA-98221- _ PDF IDWF Current Legal Description Abbreviation Definitions (0,1764 AC)LOT 6,48 NORTH PLAT&PUD,RECORDED UNDER AF#201705020028,BEING A PORTION OF THE THE SOUTH HALF OF THE NORTHEAST QUARTER OF THE SOUTHEAST QUARTER OF SECTION 22,TOWNSHIP 35 NORTH,RANGE 1 EAST,W.M. 2016 Values for 2017 Taxes* Sale information 2017 Property Tax Summary Building Market Value $.00 Deed Type No Tax Data was returned Land Market Value +$,00 Sale Date Total Market Value $.00 Sale Price$.00 Please call the Treasurer's office for Assessed Value $.00 related tax information(360)416-1750. Taxable Value $.00 Effective date of value is January 1 of the assessment year(2016) Legal Description at time of Assessment *Land Use (111)HOUSEHOLD,SFR,INSIDE CITY WAC 458-53-030 Neighborhood (21AVIEW)ANACORTES VIEW RESIDENTIAL Levy Code o90o Fire District School District SD103 Exemptions Utilities *SEW,WTR-P Acres NaN Improvement 1 Attributes Summary Building Style RESIDENTIAL HOMESITE Year Built Foundation Above Grade Living Area Exterior Walls Finished Basement Roof Covering *Total Living Area Heat/Air Conditioning Unfinished Basement Fireplace *Total Garage Area Bedrooms Bathrooms For additional information on individual segments see Improvements tab *Land Use codes are for assessment administration purposes and do not represent jurisdictional zoning.Please contact the appropriate planning department in your jurisdiction for land use questions. *Total living area includes above grade living area and finished basement area. *Garage square footage includes all garage areas;basement garages,attached garages,detached garages,etc. Assessment data for Improvements is based on exterior inspections.Please contact the Assessor's office if the information does not accurately reflect the interior characteristics. https://www.skagitcounty.net/Search/Property/ 5/31/2017 City of Anacortes Public Works Department\Building Departme Small Parcel Storm Plan 111 Section 13.36.100 AY 6 2011 Chapter 13.36 Drainage Requirements and Regulations -CITY t�F ANACORTEB Project Name: 48 NORTH PLAT &PUD (AF#201705020028) Description: LOT 6 OF SAID 48 NORTH PLAT &PUD Owner: 48 NORTH ON FIDALGO ISLAND, LLC Developer: LG ANACORTES, LLC (Landed Gentry Development, Inc.) Site Address: 1416 Latitude Circle Anacortes, Washington 98221 Tax Parcell.D. P133664 Prepared by: Steve Baughn, Landed Gentry Development, Inc. 504 E. Fairhaven Avenue Burlington, Washington 98233 (360) 755-9021 • 1. SPSP No. 1 -- Construction Access Route a. Construction vehicle access shall be limited to one route, unless approved by the official. The construction access to the site is from a paved public street, known as Latitude Circle. Use 4 to 6-inch quarry spalls in temporary construction entrance per WSDOT Standard Plan 1-80.10-02, for maximum soil and mud removal from ti re s -cads, horizontal climensionr, to tit maximum space available. b. A gravel construction road shall be installed which will remove as much mud and dirt from the vehicles as possible prior to entering the public roadway. The effectiveness and efficiency of the removal shall be to the satisfaction of the official. Use 4 to 6-inch quarry spalls in temporary construction entrance per WSDOT Standard Plan 1-80.10-02, for maximum soil and mud removal from tire treads, horizontal dimensions to fit maximum space available. c. If conditions are such that an insufficient amount of material is removed from the tires by contact with the aggregate, the tires shall be washed prior to entering the public right-of-way. The water from this process shall be directed to a sedimentation pond of other appropriate sediment-trapping BMP for treatment prior to release to the public storm water system. There is insufficient room and slopes are not conducive to construct a sediment-trapping BMP on this site for wheel wash. Therefore, any material that may material not removed by the quarry spall BMP will be scraped off of tires by hand. If material is tracked into the public right of way, it shall be swept up and shoveled out immediately. d. The entrance shall be maintained in a condition that shall prevent the tracking or flow of mud onto the public right-of-way. Periodic maintenance of the entrance, including the removal and replacement of aggregate, and cleaning and/or repair of sediment-trapping devices shall be performed as conditions dictate or as directed by the official. This LIMP will be monitored daily. Appropriate measures will be taken to ensure access is in working condition. e. Sediment tracked onto the public roadways shall be cleaned on at least a daily basis. Cleaning of public roadways shall be done by sweeping and shoveling, not by wash-down. Any material that is tracked into the street will be swept up immediately. The street stormwater runoff flows to the north. The use of catch basin inserts in the downstream catch basins located in Latitude Circle will also collect remaining debris. This catch basin insert BMP shall be checked and cleaned or replaced as needed. 2. SPSP No. 2 -- Stabilization of Denuded Areas. All exposed soils shall be prevented from moving off-site or into natural or artificial drainage systems through suitable application of BMP's, including, but not limited to, silt fencing, sod or other vegetation, plastic covering,mulching, or application of ground base on areas to be paved. Mulching of exposed soil is the preferred first step BMP for this project. All exposed soil shall be covered with mulching within 24 hours. 3. SPSP No. 3 -- Protection of Adjacent Properties. Adjacent properties shall be protected from sediment deposition by appropriate use of vegetative buffer strips, sediment barriers or filters, dikes,berms, or mulching, or a combination of these measures and other appropriate BMP's. Due to the close proximity of this construction site and the adjacent properties, use of silt fencing will be the prominent BMP. Mulching or exposed soil will also be used, along with swales to re-direct surface flow away from the project boundaries. Plastic sheeting shall be used to cover temporary soil stockpiles along with silt fencing placed immediately down grade of any soil stockpiles. a. Surrounding properties shall be protected from storm water runoff from the development. This shall be accomplished by constructing private drain lines on the perimeter of the development and discharging the storm runoff into a public storm sewer system. Open space tracts and buffers shall not be used for this purpose,unless otherwise approved. Private drain lines shall be contained in private drainage easements with appropriate statements placed on approved documents. Due to the close proximity of this construction site and the adjacent properties. use of silt fencing will he the prominent BMP. Mulching or exposed soil will also he used. along with swales to re-direct surface flow away from the project boundaries. Plastic sheeting shall be used to cover temporary soil stockpiles along with silt fencing placed immediately down grade of any soil stockpiles. b. Drainage conveyance shall be provided to all impervious areas of the development. Each lot or other developed area shall be provided with direct connection to the main public storm water conveyance system; sidewalk drains will only be allowed with approval of the official. Adequate provisions, to the satisfaction of the official, must be provided for directing storm water runoff away from all neighboring lots. This may be accomplished by providing private drainage easements on common lot lines and/or construction of drainage swales, curtain drains or perforated pipe and connecting to the public storm conveyance system. The new home will have roof& footing drains that will be tight lined to the existing 6" SD stub located at the northwest corner of the property. c. Verification shall be provided to the city engineer that the as-built detention/retention facility is in compliance with the project requirements. There is no detention facility downstream of this project. A Bio-Swale has been constructed with the plat construction for water quality purposes. d. All site-generated storm runoff shall be directly conveyed to a public storm conveyance system, unless otherwise approved by the official. Easements and/or hold harmless agreements shall be obtained from affected property owners to allow passage of all site-generated storm runoff that is not directly conveyed to a contiguous public storm conveyance system. All site-generated storm runoff, such as roof drains, footing drains. and surface runoff will be collected and conveyed to the existing private storm service stub located at the west side of the project site. There is no need to cross any other property to accomplish this and therefore there is no need to acquire any easements or hold harmless areernents. e. Adjacent properties shall be protected from sediment deposition by appropriate BMP's, including,but not limited to, vegetative buffer strips, sediment barriers or filters, dikes,berms, or mulching, or by a combination of these and other appropriate measures. The adjacent properties will be protected by placing any or all of the following BMP°s: silt fencing. mulch cover. and mulch berms. Also, any existing vegetation that can be left undisturbed will remain as a buffer. 4. SPSP No. 4 -- Maintenance. All erosion and sedimentation control BMP's shall be inspected and maintained regularly by the developer to ensure continued performance of their intended function. Project site shall be inspected daily to ensure all BMPs are functional. Any correction or repair shall he done at time of inspection. 5. SPSP No. 5 -- Other BMP's. Other appropriate BMP's to mitigate the effects of increased runoff or inadequacy of already installed BMP's shall be applied as required or ordered by the official. Will work with City of Anacortes on implementation of additional BMPs as needed. 6. SPSP No. 6 -- Financial Liability. Performance bonding, or other appropriate instruments, may be required for all projects to ensure compliance with the approved small parcel storm water plan. (Ord. 2441 § 10, 1997) I will conform to the Small Parcel Storm Plan so that I am not required to obtain a Performance Bond. Site Address / LH 6 Z71, '�c el;re. Project 3 el/7 Building Permit # !L -2 O/ ' Department Date totes Building u7 jr41 6 `97tx p_evier.42 effeo. t( 4-01Ck 117 r ainij p roix.d s-s kistitc-e_ „®040 Public Works 19;40 4i—.7 40e-___7141211C)- 11)6(---d I IQ o 44.4 Planning i r Stormwater ? Off A l 01°' 1-7/i‘m vouyA. Fire 2-l17 F //' Project Inter-Departmental Plan Review Tracking Developed Conditions&Runoff of the Site: Summarize difficult site parameters,the natural drainage system,and drainage to and from adjacent properties, including bypass fl•ws: ❑ Hydrological Site Plan:Collect and analyze information on existing conditions to aid in determining low impact development feasibility—which locations are most appropriate to evaporate,transpire, and infiltrate, with the following information: o Survey by Land Surveyor,Engineer,or other qualified professional:Show existing public and private development,utility infrastructure, hydrological features (seeps, springs, closed depression areas, drainage swales, streams, wetlands,and water body survey and classification report showing wetland and buffer boundaries),flood hazard areas,geological hazards, buffers, aquifer and wellhead protection areas,topographic features that may act as natural stormwater storage, infiltration, or conveyance. Include the natural receiving waters that stormwater runoff will either directly or eventually discharge.Show topography,display acreage and outlines of all drainage basins; existing stormwater drainage to and from the site; routes to existing, construction, and future flows at all discharge points; and the length of travel from the farthest upstream end of a proposed storm drainage system to any proposed flow control and treatment facility. Identify areas of potential erosion problems Show cant curs as follows: • Up to 10%slopes= 2 ft. contours o Over 10%to less than 20%slopes= 5 ft. contours • 20%or greater slopes= 10 ft.contours ▪ Elevations at 25 ft. intervals o Soils Report:Done by a soil scientist certified by Soil Science Society of America, licensed sewage designer, or other suitably trained persons working under the supervision of a professional engineer,geologist, hydrologist, or any other professional supervised by an engineering geologist registered in Washington State. (Soils Report Page 2 of 4 March 22, 2017 must include details as listed on Pg.79). In addition, describe soils by name, erodibility, settleability, permeability,depth, texture, and soil structure. Testing should occur between December 1 and April 1. o Soils Map: Based on the report. o Preliminary Development Site Plan Layout: Locate proposed buildings, roads,parking lots, landscaping features,on-site stormwater management BMPS(Determine BMPs starting on Pg. 95. Suggested BMPs correlate with responses to the 13 elements of the SWPPP, Pg. 237, and preliminary location of stormwater treatment and retention/detention facilities. Considerations are on Pg. 83, These methods could reduce required facility sizes, but are not required for approval.Show existing and proposed contours, show all cut and fill slopes indicating top and bottom of slope catch lines, and identify developed condition drainage basins. o Survey of existing native'vegetation cover:This is only required if there are native soil and vegetation protection areas proposed for the site.Survey shall be done by a licensed architect, arborist, qualified biologist or project proponent identifying any forest areas on the site and a plan to protect those areas.The preserved area should be placed in a separate tract or protected through recorded easements for individual lots. o Vicinity Map: Clearly locate the property, identify all roads bordering the site,show the route of stormwater off-site to the local natural receiving water,and show significant geographic features and sensitive/critical areas (streams,wetlands, lakes, steep slopes, etc). ❑ Construction Stormwater Pollution Prevention Plan(SWPPP)—The SWPPP shall be implemented beginning with initial land disturbance and until final stabilization. From October 1 through April 30, clearing,grading, and other soil disturbing activities shall only be permitted if shown that silt-laden runoff will be prevented from leaving the site through methods listed on pg. 44. Best Management Practices(BMPs)Standards and Specifications are listed on pg. 261. Please see pg. 230 for details on using the Site Analysis to produce the following materials: o Narrative: Explain and justify the pollution prevention decisions made.This will contain concise information concerning existing site conditions, construction schedules, wet season construction activity, constraints, and other pertinent items that are not contained on the drawings.This is based on the 13 Construction Elements,which must be considered unless site conditions render the element unnecessary and the exemption is clearly justified. Elements listed on pg. 44&described in detail starting on pg. 236. o Drawings& Notes:Where and when the BMPs should be installed, the performance the BMPs are expected to achieve, and actions that will be taken if the performance goals are not achieved. Show water quality monitoring locations. o Special Reports&Studies: Include any studies(i.e.wetlands delineation). If a facility is required and feasible for Minimum Requirement 5, a PIT Test must be done in the location that the facility location is proposed based on the preliminary development site plan layout. ❑ Other permits:Any other necessary permits as required by other regulatory agencies. Identify if those permits include conditions that affect the drainage plan, or contain more restrictive drainage-related requirements. Prior to Final Stormwater Inspection ❑ Permanent Stormwater Control Plan Drawing:Select BMPs based on the Preliminary Development Site Plan Layout from the Site Analysis Summary. Provide a scale drawing of the Page 3 of 4 March 22, 2017 lot(s)and any public ROW that displays the location of On-Site BMPs and the areas served by them. These documents will be recorded and attached to a declaration of covenant and grant of easement associated with each lot that includes On-site BMPs. Provide design details,figures, and maintenance instructions for each BMP. Provide a written summary of how it complies with the applicable requirements. Prior to Final Occupancy ❑ Operation &Maintenance Manual: Include a manual for each flow control and treatment facility, including any distributed bioretention facilitiesthat to._help_meetflow-control and/or treatment requirements.The manual shall include a description of the facility, what it does, and how it works. It must also identify and describe the maintenance tasks,and the frequency of each task. The tasks and frequencies must meet the standards of the SWMMWW. Include a maintenance activity log that will indicate what actions will have been taken and where it should be kept and made available for inspection by the City. ❑ Declaration of Covenant for Privately Maintained Flow Control&Treatment Facilities and On- Site Stormwater Management BMPs:Any flow control &treatment facilities and On-Site Stormwater management BMPs for which the applicant identifies operation & maintenance to be the responsibility of a private party must have a declaration of covenant and grant of easement. After City approval,the declaration of covenant and grant of easement must be signed and recorded. Design details, figures, and maintenance instructions for any BMP shall be attached.A map showing the location of newly planted and retained trees claimed as flow reduction credits shall also be attached. ❑ Record Documents: Record total impervious surface area of the site and their locations with the county auditor. By signing below,you are certifying that you have read and understand the stormwater requirements. Be sure that you have checked off ail applicable boxes. ra Applicaru. Signature Da /VI- Page 4 of 4 March 22, 2017 EXHIBIT "A" Responses to the "Complete Residential Stormwater Plan Checklist— Minimum Requirements 1-5". Brief Description of the Project: To consffucfone Single-Family Residence (SFR) on a single legal lot within the City of Anacortes. The existing property is Lot 6, Plat of 48 North, is 7,682 square feet in size, and Zoned as R2. Pre Developed Conditions & Runoff on the Site: The property is vacant except for three existing trees to be protected during construction. The site slopes from the southeast to the northwest at a grade of approximately 10%. The property is bounded as follows: NORTH: Lot 5, 48 North. EAST: The Anacortes Airport. South: Lot 7, 48 North. West: Fully improved street of Latitude Circle. Developed Conditions & Runoff of The Site: The proposed improvements are as follows: Construct a SFR with an approximate lot coverage of 29.8%, and an impervious lot coverage of 36.3%. No detention was required for the Plat of 48 North, but there is an existing water quality bio-swale for the plat. A roof drains and footing drains will be hard lined to the existing stormwater collection system. The point of connection for Lot 6 is located approximately 20 feet north of the south line of Lot 6 and near the Latitude Circle right of way. After construction, landscaping will be provided to permanently stabilize the site from erosion. Summarize difficult site parameters, the natural drainage system, and drainage to and from adjacent properties, including bypass flows: The site slopes from the southeast to the northwest at a grade 10% and the disturbed soil has been seeded and/or mulched to reduce erosion. The only tributary drainage the lot may receive is from the Anacortes Airport property which is well vegetated and minor. Hydrological Site Plan: Survey: A topographic survey has been performed by Herrigstad Engineering, showing the -existing--improvements-aro-un-d-and-within the subject property, along with the existing contours at 2-foot intervals. Soils Report: A Geologic Hazard Assessment and Geotechnical Engineering Services report was prepared by GeoEngineers, dated July, 21, 2015, and is already part of the record documents provided to the City of Anacortes. Preliminary Development Site Plan Layout: A "Site Plan" has been prepared by Landed Gentry Development, Inc., showing both the existing and proposed improvements as requested, along with an "Erosion Control Plan". See attached. A "Survey of existing native vegetation cover" was performed by the Urban Forestry Services, Inc., for the project, dated August 12, 2015, and a tree preservation plan was developed and adopted by the City of Anacortes. A "Vicinity Map" has been provided on Sheet 2 of 2 of the "Erosion Control Plan", attached. Construction Stormwater Pollution Prevention Plan (SWPPP): See attached. Other Permits: Building Permit for SFR. 11 iit7 iR 11 ir 11 JL1 11 v r Planning, Community, & Economic Development Department leak PO Box 547, Anacortes, WA 98221 41VAOO PH: 360.299.1984 "'_!� 13 Elements of SWPPP (Construction Storm,:at-r Pollution Prevention PI-n) Please check off boxes to show that each element has been read and understood. Provide details where applicable an-d-if certain aspects are unnecessary or exempt, clearly justify. Details of the 13 Elements and the correlating BMPs are listed on Pg. 236 of 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: ` 3 //i. f fJA coozr Site Address: " . w De Prepared By: � Tf jh io t.fr it The Stormwater checklist or building permit determined that: ❑ The 13 elements must be addressed for ❑ These elements must be addressed for construction activity adding under 2,000 construction activity adding 2,000 sq.ft. sq.ft. of hard surface area. or more of hard surface area. This means that an attached narrative and site plan are required with this document. Under each element ex lain the best mama einent practices BMPs used or iustifry reasoning for those that will not be used. if needed, please attach a narrative to further explain (plans or justification. 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. ❑ Retain the duff layer, native top soil, and natural vegetation in an undisturbed state to the maximum degree practical. Page 11 of 8 March, 2017 ELEMENT 2: Establish Construction Access E Limit construction vehicle access and exit to one route, if possible, ❑ Stabilize access points with a pad of quarry spells, 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 tracked o±f site,_cIean_theaffected-roadway-thoroughly-atthe-end-ofeach-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. 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. Li 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. 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 Page 2 of March, 2017 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_sedlme.nt_that is_stills.uspen.ded-lower-in-thewater_column. 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. ❑ 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. ELEMENT 6o Protect Slopes D 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). Page 3 of v March, 2017 ❑ 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 develop.ed_co.ndition_Alte.rnatively-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. ❑ MAP combinations are the most effective method of protecting slopes with disturbed soils. Ex: Use both mulching and straw erosion control blankets. 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 waters of the State. ❑ Inlets should be inspected weekly at a minimum and daily during storm events. Page 4ofs March, 2017 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. ELEMENT 9: Control Pollutants ❑ Design, install, implement, and maintain effective pollution prevention measures to minimize the discharge of pollutants. C7 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. LI 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. Page 5of8 March, 2017 ❑ 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. ❑ 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. 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 Page 6of8 March, 2017 of water quality standards for turbidity.The easiest way to avoid discharging muddy water is through infiltration and preserving vegetation. ELEMENT 12: Maintain BMPs El 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. El 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 documents. ❑ Remove or stabilize trapped sediment on site. Permanently stabilize disturbed soil resulting from removal of BMPs or vegetation. 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. Management details starting on : . ❑ 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. ❑ 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: Page 7 of t' March, 2017 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_mainten.ance_and_ne.cessar_y_repair of-erosion-and-sediment control-BMf s; 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. ELEMENT 13: Protect Low Impact Development BMPS ❑ If implementing any bioretention facilities or rain gardens, see for requirements. .04 Applicalnt Signature Date Page 8 of ffi March,2017 EXHIBIT "B" Responses to the "13 Elements of SWPPP" (Construction Stormwater Pollution Prevention Plan) ELEMENT 1: Preserve Vegetation/Mark Clearing Limits The clearing limits will be marked by using either BMP C233: Silt Fence, or BMP C103: High Visibility Plastic or Metal Fence, as shown on the Erosion Control Plan. C233 is to be used along the west and north property lines and the C103 along the east and south property lines. Preservation of the native top soil will be preserved as much as is practical by use of a stock pile as shown on the Erosion Control Plan. Stock pile location may vary. Stock pile shall be protected as indicated on the Erosion Control Plan. ELEMENT 2: Establish Construction Access BMP C105 shall be used as the construction access. Only one access point is proposed. No wheel wash is proposed. Any track out shall be cleaned daily by shoveling and/or sweeping. More frequent cleaning as necessary. ELEMENT 3: Control Flow Rates No flow rate controls are designed for the individual lot. However, erosion control BMPs described in ELEMENT 4, below will reduce velocity of flowsm. ELEMENT 4: Install Sediment Controls The following BMPs are proposed as temporary sediment controls: C103: High Visibility Plastic or Metal Fence To be place along the perimeter of the site to mark the clearing limits for the construction crew and to alert the public as to the potential dangers of the ongoing onsite construction activity. C233: Silt Fence To be place along the perimeter of the site to protect downstream properties from the transport of coarse sediment, as well as to mark the clearing limits for the construction crew and to alert the public as to the potential dangers of the ongoing onsite construction activity. C105: Stabilized Construction Entrance To be place in the location of the future driveway on 15th Street,to provide a stable and clean point of access for construction vehicles. C121: Mulching To provide immediate temporary protection of exposed soil from erosion, as well as conserving moisture. C123: Plastic Covering Primarily used to protect the stock pile from erosion. May be used as a short term cover of small areas of exposed soil. Not intended for large areas. C140: Dust Control As this project will be constructed during the dry season, dust control may be necessary to protect the surrounding neighborhood. The primary source of dust control will be controlled spraying of the disturbed area with water. C220: Storm Drain Inlet Protection Onsite inlet protection will use Block & Gravel Curb Inlet Protection. Offsite inlet protection will use Catch Basin Filters manufactured for use at construction sites. C207: Check Dams Where drainage swale are created to convey stormwater, temporary gravel check dams may be used to reduce velocity and to dissipate flow energy. The following BMP improvement(s) are proposed for permanent sediment controls: C124: Sodding Sodding is to establish permanent turf for immediate erosion protection. C125: Top Soiling Provides a suitable growth medium for final site stabilization with vegetation. T5.13: Post-Construction Soil Quality and Depth Establishes soil quality and depth regains greater stormwater functions in the post development landscape, provides increased treatment of pollutants and sediments that result from development and habitation. ELEMENT 5: Soil Stabilization The following are temporary soil stabilization BMPs: C233: Silt Fence To be place along the perimeter of the site to protect downstream properties from the transport of coarse sediment, as well as to mark the clearing limits for the construction crew and to alert the public as to the potential dangers of the ongoing onsite construction activity. C105: Stabilized Construction Entrance To be place in the location of the future driveway on 15th Street,to provide a stable and clean point of access for construction vehicles. C121: Mulching To provide immediate temporary protection of exposed soil from erosion, as well as conserving moisture. C123: Plastic Covering Primarily used to protect the stock pile from erosion. May be used as a short term cover of small areas of exposed soil. Not intended for large areas. C140: Dust Control As this project will be constructed during the dry season, dust control may be necessary to protect the surrounding neighborhood. The primary source of dust control will be controlled spraying of the disturbed area with water. C220: Storm Drain Inlet Protection Onsite inlet protection will use Block & Gravel Curb Inlet Protection. Offsite inlet protection will use Catch Basin Filters manufactured for use at construction sites. C207: Check Dams Where drainage swale are created to convey stormwater, temporary gravel check dams may be used to reduce velocity and to dissipate flow energy. The following are permanent soil stabilization BMPs: C124: Sodding Establishes permanent turf for immediate erosion protection. C125: Top Soiling Provides a suitable growth medium for final site stabilization with vegetation. T5.13: Post-Construction Soil Quality and Depth Establishes soil quality and depth regains greater stormwater functions in the post development landscape, provides increased treatment of pollutants and sediments that result from development and habitation. -ELEMENT 6:Protect Slopes C235: Straw Wattles Straw Wattles reduce the velocity and can spread the flow of rill and sheet runoff, and can capture and retain sediment. ELEMENT 7: Protect Drain Inlets C220: Storm Drain Inlet Protection Onsite inlet protection will use Block & Gravel Curb Inlet Protection. Offsite inlet protection will use Catch Basin Filters manufactured for use at construction sites. ELEMENT 8: Stabilize Channels and Outlets C207: Check Dams Where drainage swale are created to convey stormwater, temporary gravel check dams may be used to reduce velocity and to dissipate flow energy. ELEMENT 9: Control Pollutants All fuel, lubricants, paint, and/or other hazardous material shall be stored in a lockable, covered storage container if kept on site. ELEMENT 10: Control De-Watering While excavating to install the sanitary sewer, stormdrain, and water systems to depths up to 14 feet, no ground water was encountered. Therefore, no dewatering is anticipated. ELEMENT 11: Maintain BMPs A trained Certified Erosion and Sedimentation Control Lead (CESCL) will be on the job site. CESCL personnel are trained in and responsible for the proper maintenance of the erosion control BM Ps. The CESCL will work with the City of Anacortes Inspector to maintain all BMPs. ELEMENT 12: Manage the Project A trained Certified Erosion and Sedimentation Control Lead (CESCL) will be on the job site. CESCL personnel are trained in and responsible for the proper maintenance of the erosion control BMPs. The CESCL will work with the City of Anacortes Inspector to maintain all BMPs. ELEMENT 13: Protect Low Impact Development BMPs No low impactdevelopment BMPs-are planned or-required for-th-is individual lot. EXHIBIT "C" PRIMARY BMPs 1ii BMP C124: Sodding I Purpose The purpose of sodding is to establish permanent turf for immediate erosion protection and to stabilize drainage ways where concentrated overland flow will occur. 1 , Conditions of Use Sodding may be used in the following areas: • Disturbed areas that require short-term or long-term cover. I • Disturbed areas that require immediate vegetative cover. • All waterways that require vegetative lining. Waterways may also be Iseeded rather than sodded, and protected with a net or blanket. Design and Sod shall be free of weeds, of uniform thickness (approximately 1-inch IInstallation thick), and shall have a dense root mat for mechanical strength. Specifications The following steps are recommended for sod installation: • Shape and smooth the surface to final grade in accordance with the approved grading plan. The swale needs to be overexcavated 4 to 6 I inches below design elevation to allow room for placing soil amendment and sod. • Amend 4 inches (minimum) of compost into the top 8 inches of the 11, r soil if the organic content of the soil is less than ten percent or the l permeability is less than 0.6 inches per hour. Compost used should meet Ecology publication 94-038 specifications for Grade A quality compost. • Fertilize according to the supplier's recommendations. • Work lime and fertilizer 1 to 2 inches into the soil, and smooth the surface. • Lay strips of sod beginning at the lowest area to be sodded and 0 perpendicular to the direction of water flow. Wedge strips securely into place. Square the ends of each strip to provide for a close, tight t fit. Stagger joints at least 12 inches. Staple on slopes steeper than 3H:1V. Staple the upstream edge of each sod strip. • Roll the sodded area and irrigate. • When sodding is carried out in alternating strips or other patterns, seed the areas between the sod immediately after sodding. Maintenance If the grass is unhealthy, the cause shall be determined and appropriate 111 Standards action taken to reestablish a healthy groundcover. If it is impossible to establish a healthy groundcover due to frequent saturation, instability, or 11 some other cause, the sod shall be removed,the area seeded with an appropriate mix, and protected with a net or blanket. I 4-28 Volume II— Construction Stormwater Pollution Prevention February 2005 BMP T5.13 Post-Construction Soil Quality and Depth Purpose and Definition Naturally occurring (undisturbed) soil and vegetation provide important stormwater functions including: water infiltration;nutrient, sediment, and pollutant adsorption; sediment and pollutant biofiltration; water interflow storage and transmission; and pollutant decomposition. 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 development landscape, provides increased treatment of pollutants and sediments that result from development and habitation, and minimizes the need for some landscaping chemicals,thus reducing pollution through prevention. Applications and Limitations Establishing a minimum soil quality and depth is not the same as preservation of naturally occurring soil and vegetation. It also does not maximize the stormwater functions that could be attained through greater soil depth and more specialized formulations as presented in BMP T5.35, Engineered Soil/Landscape Systems. 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, composted 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. Design Guidelines • Soil retention. The duff layer and native topsoil should be retained in an undisturbed state to the maximum extent practicable. In any areas requiring grading remove and stockpile the duff layer and topsoil on site in a designated,controlled area,not adjacent to public resources and critical areas, to be 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 structural fill or slope shall, at project completion, demonstrate the following: 5-12 Volume V—Runoff Treatment BMPs AugUst 2001 ", b a I. Retention or enhancement of the moisture infiltration rate and soil moisture holding capacity of the original undisturbed soil native to the site. Areas which have been compacted or have removed some or all of the duff layer or underlying top soil shall be amended to mitigate for lost moisture infiltration and moisture holding capacity; and 2. A topsoil layer with a minimum organiccmatter_content-of-ten percent dry weight and a pH from 6.0 to 8.0 or matching the pH of the original 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. • These criteria can be met by using on-site native topsoil, incorporating amendments into on-site soil, or importing blended topsoil. If blended topsoil is imported, then fines should be limited to twenty-five percent passing through a 200 sieve. • The resulting soil should be conducive to the type of vegetation to be established. Maintenance • Soil quality and depth should be established toward the end of construction and once established, should be protected from compaction, such as from large machinery use, and from erosion. • Soil should be planted and mulched after installation. • Plant debris or its equivalent should be left on the soil surface to replenish organic matter. • It should be possible to reduce use of irrigation, fertilizers,herbicides and pesticides. These activities should be adjusted where possible, rather than continuing to implement formerly established practices. August 2001 Volume V—Runoff Treatment BMPs 5-13 BMP T5.i4A►: Rain Gardens Purpose and Definition Land development projects may not be of sufficient size such that it is practical to con- struct engineered stormwater facilities for flow reduction and pollutant removal. However,_th-e_cumu.l.a-tive-impact-of smaller-development-proje-cts orrthe natural-hydro- logy and water quality of local waters can be significant. To reduce that cumulative impact, small projects (see 1-2.4 Applicability of the Minimum Requirements (p.35))must implement on-site stormwater management BMP's (See 1-2.5.5 Minimum Requirement #5: On-site Stormwater Management(p.55)). Rain gardens are an on-site stormwater management BMP that can provide effective removal of many stormwater pollutants, and provide reductions in stormwater runoff quantity and surface runoff flow rates. is Rain gardens are non-engineered, shallow, landscaped depressions with compost- amended soils and adapted plants. The depression ponds and temporarily stores storm- • water runoff from adjacent areas. A portion of the influent stormwater passes through the amended soil profile and into the native soil beneath. Stormwater that exceeds the stor- age capacity is designed to overflow to an adjacent drainage system. Applications and Limitations Rain gardens are an on-site stormwater management BMP option for projects that have to comply with Minimum Requirements#1 -#5, but not Minimum Requirements#6 -#9. For projects electing to use List#1 of 1-2.5.5 Minimum Req uirement#5: On-site Storm- water Management(p.55), rain gardens are to be used to the extent feasible for runoff from roofs and other hard surfaces unless a higher priority BMP is feasible. Infeasibility criteria for rain gardens are the same as for bioretention. Please see Biore- tention infeasibility criteria in BMP T7.30: Bioretention Cells, Swales, and Planter Boxes (p.959). Although not required, Ecology recommends installation by a landscaping company with experience in rain garden construction. Rain gardens constructed with imported compost materials should not be used within one-quarter mile of phosphorus-sensitive waterbodies. Preliminary monitoring indicates that new rain gardens can add phosphorus to stormwater. Therefore, they should also not be used with an underdrain when the underdrain water would be routed to a phos- phorus-sensitive receiving water. Design Guidelines Refer to the Rain Garden Handbook for Western Washington (2013)for rain garden spe- cifications and construction guidance. 2014 Stormwater Management Manual for Western Washington Volume V- Chapter 5-Page 915 - b For amending the native soil within the rain garden, Ecology recommends use of com- post that meets the compost specification for bioretrention (see BMP T7.30: Bioretention Cells, Swales, and Planter Boxes (p.959)). Compost that includes biosolids or manures shall not be used. For design on projects subject to 1-2.5.5 Minimum Requirement#5: On-site Stormwater Management (p.55), and choosing to use List#1 of that requirement, rain gardens shall have a horizontally projected surface area below the overflow which is at least 5% of the total impervious surface area draining to it. If lawn/landscape area will also be draining to the rain garden, Ecology recommends that the rain garden's horizontally projected sur- face area below the overflow be increased by 2% of the lawn/landscape area. Underdrains Ecology does not recommend the use of underdrains for rain gardens. Design and con- struction of an underdrain system likely requires professional expertise. Where a muni- cipality intends to require or allow underdrained rain gardens in areas with initial infiltration rates between 0.3 and 0.6 inches per hour, the invert of the underdrain shall be 6 inches above the bottom of the aggregate bedding for the underdrain. A larger dis- tance between the underdrain and the bottom of the aggregate bedding is desirable, but cannot be used to trigger infeasibility due to inadequate vertical separation to the sea- sonal high water table, bedrock, or other impermeable layer. Ecology recommends that the municipality establish standard design specifications and drawings. Maintenance Please refer to the Rain Garden Handbook for Western Washington (2013)for tips on mulching, watering, weeding, pruning, and soil management. The "Western Washington Low Impact Development(LID) Operation and Maintenance (O&M) Guidance Docu- ment" may be consulted for more detailed guidance. BMP T5.14B Bioretention Purpose and Definition Bioretention areas are shallow landscaped depressions, with a designed soil mix and plants adapted to the local climate and soil moisture conditions, that receive stormwater from a contributing area. Bioretention provides effective removal of many stormwater pollutants by passing storm- water through a soil profile that meets specified characteristics. Bioretention can also reduce stormwater runoff quantity and surface runoff flow rates significantly where the exfiltrate from the design soil is allowed to infiltrate into the surrounding native soils. 2014 Stormwater Management Manual for Western Washington Volume V- Chapter 5-Page 916 Figure 111-3.1.1 Flow Diagram Showing Selection of Roof Downspout Controls Large native area Yes set aside or high Use Full Dispersion or on-site infiltration? Full Infiltration Systems No Lots suitable for Yes Use Bioretention or Rain Garden infiltration? depending on project size No Criteria for Downspout Yes Use Dispersion met? Downspout Dispersion Systems No Connect downspouts to street drainage system with perforated stub-outs (see Section 3.1.3) Figure III-3.1 .1 111 Flow Diagram Showing Selection of Roof Downspout Controls DEPARTMENT OF Revised November 2015 ECOLOGY Please see http://www.ecy.wagovicopyrighthImI for copyright notice including permissions, State of Washington limitation of liability,and disclaimer. 2014 Stormwater Management Manual for Western Washington Volume Ill- Chapter 3-Page 451 3 111-3,1,1 Downspout Full Infiltration Systems (BMP T5,10A) Downspout full infiltration systems are trench or drywell designs intended only for use in infiltrating runoff from roof downspout drains. They are not designed to directly infiltrate runoff from pollutant-generating impervious surfaces. Application Projects subject to 1-2.5.5 Minimum Requirement#5: On-site Stommwater Management (p.55) must provide for individual downspout full infiltration systems or full dispersion if feasible. Evaluate the feasibility, or applicability, of downspout full infiltration unless full dispersion is proposed. Use the evaluation procedure below to determine the feasibility of downspout full infiltration. Runoff Modeling for Roof Downspout Full Infiltration If roof runoff is infiltrated according to the requirements of this section, the roof area may be discounted from the project area used for sizing stormwater facilities. Procedure for Evaluating Feasibility 1, Have one of the following prepare a soils report to determine if soils suitable for infiltration are present on the site: . A professional soil scientist certified by the Soil Science Society of America (or an equivalent national program) • A locally licensed on-site sewage designer . A suitably trained person working under the supervision of a professional engineer, geologist, hydrogeologist, or engineering geologist registered in the State of Washington. The report shall reference a sufficient number of soils logs to establish the type and limits of soils on the project site. The report should at a minimum identify the limits of any outwash type soils (i.e., those meeting USDA soil texture classes ranging from coarse sand and cobbles to medium sand)versus other soil types and include an inventory of topsoil depth. 2. If the lots or site does not have outwash or loam soils, and full dispersion is not feasible, then consider a rain garden or bioretention BMPs (the next lower priority on-site stormwater management system). 3. Complete additional site-specific testing on lots or sites containing outwash (coarse sand and cobbles to medium sand) and loam type soils. Individual lot or site tests must consist of at least one soils log at the location of the infiltration system, a minimum of 4 feet in depth from the proposed grade and at 2014 Soormwater Management Manual for Western Washington Volume III- Chapter 3-Page 452 least 1 foot below the expected bottom elevation of the infiltration trench or dry well. • Identify the NRCS series of the soil and the USDA textural class of the soil horizon through the depth of the log, and note any evidence of high ground water level, such as mottling. 4_ -Dow_nspout infiltration i-s considered-feasible-on lots-orsite5that meet all of the fol- lowing: . 3 feet or more of permeable soil from the proposed final grade to the sea- sonal high ground water table. . At least 1-foot of clearance from the expected bottom elevation of the infilt- ration trench or dry well to the seasonal high ground water table. • The downspout full infiltration system can be designed to meet the minimum design criteria specified below. Desicgn Criteria for Infiltration Trenches Figure III-3.1.2 Typical Downspout Infiltration Trench (p.455) shows a typical downspout infiltration trench system, and Figure III-3.1.3 Alternative Downspout Infiltration Trench_ System for Coarse Sand and Gravel (p.456) presents an alternative infiltration trench sys- tem for sites with coarse sand and cobble soils. These systems are designed as spe- cified below. General 1. The following minimum lengths (linear feet) per 1,000 square feet of roof area based on soil type may be used for sizing downspout infiltration trenches. Coarse sands and cobbles: 20 LF Medium sand: 30 LF Fine sand, loamy sand: 75 LF Sandy loam: 125 LF Loam: 190 LF 2. Maximum length of trench shall not exceed 100 feet from the inlet sump. 3. Minimum spacing between trench centerlines shall be 6 feet. 4. Filter fabric shall be placed over the drain rock as shown on Figure IIi-3.1.2 Typical Downspout Infiltration Trench (p.455) prior to backfiiling. 5. Infiltration trenches may be placed in fill material if the fill is placed and compacted under the direct supervision of a geotechnical engineer or professional civil 2014 Stormwater Management Manual for Western Washington Volume 111- Chapter 3-Page 453 engineer with geotechnical expertise, and if the measured infiltration rate is at least 8 inches per hour. Trench length in fill must be 60 linear feet per 1,000 square feet of roof area. Infiltration rates can be tested using the methods described in Section 3.3. 6. Infiltration trenches should not be built on slopes steeper than 25% (4:1).A geo- technical analysis and report may be required on slopes over 15 percent or if loc- ad within 200 feet of the top of slope steeper than 40%, or in a landslide hazard area. 7. Trenches may be located under pavement if a small yard drain or catch basin with grate cover is placed at the end of the trench pipe such that overflow would occur out of the catch basin at an elevation at least one foot below that of the pavement, and in a location which can accommodate the overflow without creating a sig- nificant adverse impact to downhill properties or drainage systems. This is inten- ded to prevent saturation of the pavement in the event of system failure. Design Criteria for Infiltration Drywells Figure III-3.1.4 Typical Downspout Infiltration Drywell (p.457) shows a typical downspout infiltration drywell system.These systems are designed as specified below. General 1. Drywell bottoms must be a minimum of 1 foot above seasonal high ground water level or impermeable soil layers. 2. When located in course sands and cobbles, drywells must contain a volume of gravel equal to or greater than 60 cubic feet per 1000 square feet of impervious sur- face served. When located in medium sands, drywells must contain at least 90 cubic feet of gravel per 1,000 square feet of impervious surface served. 3. Drywells must be at least 48 inches in diameter(minimum) and deep enough to contain the gravel amounts specified above for the soil type and impervious sur- face served. 4. Filter fabric (geotextile) must be placed on top of the drain rock and on trench or dry- well sides prior to backfilling. 5. Spacing between drywells must be a minimum of 10 feet. 6. Downspout infiltration drywells must not be built on slopes greater than 25% (4:1). Drywells may not be placed on or above a landslide hazard area or on slopes greater than 15% without evaluation by a professional engineer with geotechnical expertise or a licensed geologist, hydrogeologist, or engineering geologist, and with jurisdiction approval. 2014 Stormwater Management Manual for Western Washington Volume Ill- Chapter 3-Page 454 BMP C126: Topsoiling Purpose To provide a suitable growth medium for final site stabilization with vegetation. While not a permanent cover practice in itself,topsoiling is an integral component of providing permanent cover in those areas where there is an unsuitable soil surface for plant growth. Native soils and disturbed soils that have been organically amended not only retain much more stormwater, but they also serve as effective biofilters for urban -pollutants and,, by supporting more vigorous plant growth, reduce the water, fertilizer and pesticides needed to support installed landscapes. Topsoil does not include 4ny subsoils but only the material from the top several inches including organic debris. Conditions of • Native soils should be left undisturbed to the maximum extent Use practicable. Native soils disturbed during clearing and grading should be restored, to the maximum extent practicable,to a condition where moisture-holding capacity is equal to or better than the original site conditions. This criterion can be met by using on-site native topsoil, incorporating amendments into on-site soil, or importing blended topsoil. • Topsoiling is a required procedure when establishing vegetation on shallow soils, and soils of critically low pH (high acid)levels. • Stripping of existing, properly functioning soil system and vegetation for the purpose of topsoiling during construction is not acceptable. If an existing soil system is functioning properly it shall be preserved in its undisturbed and uncompacted condition. • Depending on where the topsoil comes from, or what vegetation was on site before disturbance, invasive plant seeds may be included and could cause problems for establishing native plants, landscaped areas, or grasses. • Topsoil from the site will contain mycorrhizal bacteria that are necessary for healthy root growth and nutrient transfer. These native mycorrhiza are acclimated to the site and will provide optimum conditions for establishing grasses. Commercially available mycorrhiza products should be used when topsoil is brought in from off-site. Design and If topsoiling is to be done,the following items should be considered: Installation • Maximize the depth of the topsoil wherever possible to provide the Specifications maximum possible infiltration capacity and beneficial growth i medium. Topsoil depth shall be at least 8 inches with a minimum organic content of 10 percent dry weight and pH between 6.0 and 8.0 or matching the pH of the undisturbed soil. This can be accomplished either by returning native topsoil to the site and/or incorporating organic amendments. Organic amendments should be incorporated to a minimum 8-inch depth except where tree roots or other natural February 2005 Volume II— Construction Soormwafer Pollution Prevention 4-29 features limit the depth of incorporation. Subsoils below the 12-inch '.: depth should be scarified at least 2 inches to avoid stratified layers, where feasible. The decision to either layer topsoil over a subgrade or incorporate topsoil into the underlying layer may vary depending on the planting specified. • If blended topsoil is imported, then fines should be limited to 25 percent passing through a 200 sieve. • The final composition and construction of the soil system will result in a natural selection or favoring of certain plant species over time. For 1/1 example, recent practices have shown that incorporation of topsoil may favor grasses, while layering with mildly acidic, high-carbon III amendments may favor more woody vegetation. F' • Locate the topsoil stockpile so that it meets specifications and does not interfere with work on the site. It may be possible to locate more than one pile in proximity to areas where topsoil will be used. • Allow sufficient time in scheduling for topsoil to be spread prior to seeding, sodding, or planting. • Care must be taken not to apply to subsoil if the two soils have contrasting textures. Sandy topsoil over clayey subsoil is a particularly poor combination, as water creeps along the junction between the soil layers and causes the topsoil to slough. • If topsoil and subsoil are not properly bonded, water will not infiltrate the soil profile evenly and it will be difficult to establish vegetation. il The best method to prevent a lack of bonding is to actually work the topsoil into the layer below for a depth of at least 6 inches. • Ripping or re-structuring the subgrade may also provide additional benefits regarding the overall infiltration and interflow dynamics of the soil system. • Field exploration of the site shall be made to determine if there is surface soil of sufficient quantity and quality to justify stripping. Topsoil shall be friable and loamy (loam, sandy loam, silt loam, sandy clay loam, clay loam). Areas of natural ground water recharge should be avoided. • Stripping shall be confined to the immediate construction area. A 4- to 6-inch stripping depth is common, but depth may vary depending on the particular soil. All surface runoff control structures shall be in place prior to stripping. 1 Stockpiling of topsoil shall occur in the following manner: • Side slopes of the stockpile shall not exceed 2:1. • An interceptor dike with gravel outlet and silt fence shall surround all f topsoil stockpiles between October 1 and April 30. Between May 1 4-30 Volume II— Construction Stormwater Pollution Prevention February 2005 . J5 and September 30, an interceptor dike with gravel outlet and silt fence shall be installed if the stockpile will remain in place for a longer period of time than active construction grading. • Erosion control seeding or covering with clear plastic or other mulching materials of stockpiles shall be completed within 2 days (October 1 through April 30) or 7 days (May 1 through September 30) of the formation of the stockpile. Native topsoil stockpiles shall not be covered-with-plastic; - • Topsoil shall not be placed while in a frozen or muddy condition, when the subgrade is excessively wet, or when conditions exist that may otherwise be detrimental to proper grading or proposed sodding or seeding. • Previously established grades on the areas to be topsoiled shall be maintained according to the approved plan. • When native topsoil is to be stockpiled and reused the following should apply to ensure that the mycorrhizal bacterial, earthworms, and other beneficial organisms will not be destroyed: 1. Topsoil is to be re-installed within 4 to 6 weeks; • 2. Topsoil is not to become saturated with water; 3. Plastic cover is not allowed. Maintenance • Inspect stockpiles regularly,especially after large storm events. Standards Stabilize any areas that have eroded. • February 2005 Volume II— Construction Stormwater Pollution Prevention 4-31 BMP C103: High Visibility Plastic or Metal Fence Purpose Fencing is intended to: (1)restrict clearing to approved limits; (2)prevent disturbance of sensitive areas, their buffers, and other areas required to be left undisturbed; (3)limit construction traffic to designated construction entrances or roads; and, (4)protect areas where marking with survey tape may not provide adequate protection, Conditions of Use To establish clearing limits,plastic or metal fence may be used:_ • At the boundary of sensitive areas,their buffers, and other areas required to be left uncleared. • As necessary to control vehicle access to and on the site. Design and • High visibility plastic fence shall be composed of a high-density Installation polyethylene material and shall be at least four feet in height. Posts Specifications for the fencing shall be steel or wood and placed every 6 feet on center(maximum) or as needed to ensure rigidity. The fencing shall be fastened to the post every six inches with a polyethylene tie. On long continuous lengths of fencing, a tension wire or rope shall be used as a top stringer to prevent sagging between posts. The fence color shall be high visibility orange. The fence tensile strength shall be 360 lbs./ft. using the ASTM D4595 testing method. • Metal fences shall be designed and installed according to the manufacturer's specifications. • Metal fences shall be at least 3 feet high and must be highly visible. • Fences shall not be wired or stapled to trees. Maintenance • If the fence has been damaged or visibility reduced, it shall be Standards repaired or replaced immediately and visibility restored. 4-6 Volume 11— Construction Stormwater Pollution Prevention February 2005 BMP C105: Stabilized Construction Entrance Purpose Construction entrances are stabilized to reduce the amount of sediment transported onto paved roads by vehicles or equipment by constructing a ., stabilized pad of quarry spalls at entrances to construction sites. Conditions of Use Construction entrances shall be stabilized wherever traffic will be leaving a construction site and traveling on paved roads or other paved areas within 1,000 feet of the site. -Wage cominercial,highway, and road projects, the designer should include enough extra materials in the contract to allow for additional stabilized entrances not shown in the initial Construction SWPPP. It is difficult to determine exactly where access to these projects will take place; additional materials will enable the contractor to install them where needed. Design and • See Figure 4.2 for details.Note: the 100' minimum length of the Installation entrance shall be reduced to the maximum practicable size when the Specifications size or configuration of the site does not allow the full length(100'). • A separation geotextile shall be placed under the spalls to prevent fine sediment from pumping up into the rock pad. The geotextile shall meet the following standards: Grab Tensile Strength (ASTM D4751) 200 psi min. Grab Tensile Elongation(ASTM D4632) 30% max. Mullen Burst Strength (ASTM 03786-80a) 400 psi min. AOS (ASTM D4751) 20-45 (U.S. standard sieve size) • Consider early installation of the first lift of asphalt in areas that will paved;this can be used as a stabilized entrance. Also consider the installation of excess concrete as a stabilized entrance. During large concrete pours, excess concrete is often available for this purpose. • Hog fuel (wood-based mulch)may be substituted for or combined with quarry spalls in areas that will not be used for permanent roads.Hog fuel is generally less effective at stabilizing construction entrances and should be used only at sites where the amount of traffic is very limited. Hog fuel is not recommended for entrance stabilization in urban areas. The effectiveness of hog fuel is highly variable and it generally requires more maintenance than quarry spalls. The inspector may at any time require the use of quarry spans if the hog fuel is not preventing sediment from being tracked onto pavement or if the hog fuel is being carried onto pavement. Hog fuel is prohibited in permanent roadbeds because organics in the subgrade soils cause degradation of the subgrade support over time. • Fencing(see BMPs C103 and.C104) shall be installed as necessary to restrict traffic to the construction entrance. 4-8 Volume 1!--Construction Stormwater Pollution Prevention February 2005 ,r e e Whenever possible, the entrance shall be constructed on a finn, compacted subgrade. This can substantially increase the effectiveness of the pad and reduce the need for maintenance. Maintenance Quarry spans (or hog fuel) shall be added if the pad is no longer in Standards accordance with the specifications. • If the entrance is not preventing sediment from being tracked onto pavement, then alternative measures to keep the streets free of sediment shall be used. This may include street sweeping,an increase in the dimensions of the entrance, or t e installation of a whey wash. • Any sediment that is tracked onto pavement shall be removed by shoveling or street sweeping. The sediment collected by sweeping shall be removed or stabilized on site, The pavement shall not be cleaned by washing down the street,except when sweeping is ineffective and there is a threat to public safety. If it is necessary to wash the streets, the construction of a small sump shall be considered. The sediment would then be washed into the sump where it can be controlled. • Any quarry spans that are loosened from the pad, which end up on the roadway shall be removed immediately. • If vehicles are entering or exiting the site at points other than the construction entrance(s), fencing (see BMPs C103 and C104)shall be installed to control traffic. • Upon project completion and site stabilization, all construction accesses intended as permanent access for maintenance shall be permanently stabilized. Driveway shaN Meer the requirements of the permttling agency II Is recommended that the entrance pe crowned eo that runell Aped drnlna ell the pad 0,01,14 v,�r1�., 4.4 MArr is °o 5r g� i f hut al/drtveway culvert it there 19 a roadside \.'►�•,e'.:,,+1 ditch present %: 4"-9'quarry&pelts N•da 5:4r exlHa \ �Geal �r �p, t2'min.thickness��''tibr �•J Provide Wealth of Ingree;Jegress area J. Figure 4.2-Stabilized Construction Entrance February 2005 Volume II-Construction Stormwater Pollution Prevention 4-9 is BMP C121: Mulching oil,_ _ ;.,,,::,'., •".: Purpose The purpose of mulching soils is to provide immediate temporary ;:., protection from erosion. Mulch also enhances plant establishment by conserving moisture, holding fertilizer, seed, and topsoil in place, and moderating soil temperatures. There is an enormous variety of mulches111 that can be used. Only the most common types are discussed in this .. section. Conditions of Use , As a temporary cover measure, mulch should be used: i • On disturbed areas that require cover measures for less than 30 days. I. • As a cover for seed during the wet season and during the hot summer months. • During the wet season on slopes steeper than 3H:1V with more than 10 !I feet of vertical relief. ii.:_. • Mulch may be applied at any time of the year and must be refreshed periodically. Design and For mulch materials, application rates, and specifications, see Table 4.7. Installation Note: Thicknesses may be increased for disturbed areas in or near Specifications sensitive areas or other areas highly susceptible to erosion. !I(. Mulch used within the ordinary high-water mark of surface waters should be selected to minimize potential flotation of organic matter. Composted organic materials have higher specific gravities (densities)than straw, 0 wood, or chipped material. Maintenance a The thickness of the cover must be maintained. k !I e Standards Any areas that experience erosion shall be rennulched and/or protected ` with a net or blanket. If the erosion problem is drainage related, then the problem shall be fixed and the eroded area remulched. ; ' : 1 1 . _ I 4-20 Volume Il- Construction Stormwater Pollution Prevention February 2005 MUM C123: Plastic Covering Purpose Plastic covering provides immediate, short-term erosion protection to slopes and disturbed areas. Conditions of • Plastic covering may be used on disturbed areas that require cover Use measures for less than 30 days, except as stated below. • Plastic is particularly useful for protecting cut and fill slopes and stockpiles. Note: The relatively rapid breakdown of most polyethylene sheeting makes it unsuitable for long-teen(greater than six months) applications. • Clear plastic sheeting can be used over newly-seeded areas to create a greenhouse effect and encourage grass growth if the hydroseed was installed too late in the season to establish 75 percent grass cover, or if the wet season started earlier than normal. Clear plastic should not be used for this purpose during the summer months because the resulting , high temperatures can kill the grass. • Due to rapid runoff caused by plastic sheeting, this method shall not be used upslope of areas that might be adversely impacted by concentrated runoff. Such areas include steep and/or unstable slopes. • While plastic is inexpensive to purchase, the added cost of installation, maintenance,removal, and disposal make this an expensive material, up to $l.50-2.00 per square yard. • Whenever plastic is used to protect slopes, water collection measures must be installed at the base of the slope. These measures include plastic-covered Bemis,channels, and pipes used to covey clean rainwater away from bare soil and disturbed areas. At no time is clean runoff from a plastic covered slope to be mixed with dirty runoff from a project. • Other uses for plastic include: 1. Temporary ditch liner; 2. Pond liner in temporary sediment pond; 3. Liner for bermed temporary fuel storage area if plastic is not reactive to the type of fuel being stored; 4. Emergency slope protection during heavy rains; and, 5. Temporary drainpipe("elephant trunk") used to direct water. 4-26 Volume II- Construction Stormwatar Pollution Prevention February 2005 Design and • Plastic slope cover must be installed as follows: Installation 1. Run plastic up and down slope, not across slope; Specifications 2. Plastic may be installed perpendicular to a slope if the slope length is less than I 0 feet; 3, Minimum of 8-inch overlap at seams; 4. On Iong or wide slopes, or slopes subject to wind, all seams should be taped; 5. Place plastic into a small (12-inch wide by 6-inch deep) slot trench at the top of the slope and backfill with soil to keep water from flowing underneath; 6. Place sand filled burlap or geotextile bags every 3 to 6 feet along seams and pound a wooden stake through each to hold them in place; 7. Inspect plastic for rips, tears, and open seams regularly and repair immediately. This prevents high velocity runoff from contacting bare soil which causes extreme erosion; 8. Sandbags may be lowered into place tied to ropes, However, all sandbags must be staked in place, • PIastic sheeting shall have a minimum thickness of 0,06 millimeters. • If erosion at the toe of a slope is likely, a gravel berm,riprap,or other suitable protection shall be installed at the toe of the slope in order to reduce the velocity of runoff Maintenance • Torn sheets must be replaced and open seams repaired. Standards • If the plastic begins to deteriorate due to ultraviolet radiation,it must be completely removed and replaced. • When the plastic is no longer needed, it shall be completely removed. • Dispose of old tires appropriately. February 2005 Volume It— Construction Stormwater Pollution Prevention 4-27 BMP C140: Dust Control Purpose Dust control prevents wind transport of dust from disturbed soil surfaces onto roadways, drainage ways, and surface waters. Conditions of Use • In areas(including roadways)subject to surface and air movement of dust where on-site and off-site impacts to roadways, drainage ways, or surface waters are likely, Design and • Vegetate or mulch areas that will not receive vehicle traffic. In areas Installation where planting,mulching, or paving is impractical, apply gravel or Specifications landscaping rock. • Limit dust generation by clearing only those areas where immediate activity will take place, leaving the remaining area(s)in the original condition, if stable. Maintain the original ground cover as long as practical. • Construct natural or artificial windbreaks or windscreens. These may be designed as enclosures for small dust sources. • Sprinkle the site with water until surface is wet. Repeat as needed. To prevent carryout of mud onto street,refer to Stabilized Construction Entrance(BMP C105). • Irrigation water can be used for dust control. Intation systems should be installed as a first step on sites where dust control is a concern. • Spray exposed soil areas with a dust palliative,following the manufacturer's instructions and cautions regarding handling and application. Used oil is prohibited from use as a dust suppressant. Local governments may approve other dust palliatives such as calcium chloride or PAM. • PAM (BMP C126) added to water at a rate of 0.5 lbs. per 1,000 gallons of water per acre and applied from a water truck is more effective than water alone. This is due to the increased infiltration of water into the soil and reduced evaporation. In addition, small soil particles are bonded together and are not as easily transported by wind. Adding PAM may actually reduce the quantity of water needed for dust control, especially in eastern Washington. Since the wholesale cost of PAM is about$ 4.00 per pound, this is an extremely cost- effective dust control method. Techniques that can be used for unpaved roads and lots include: • Lower speed limits. High vehicle speed increases the amount of dust stirred up from unpaved roads and lots. • Upgrade the road surface strength by improving particle size, shape, and mineral types that make up the surface and base materials. 4-40 Volume 11—Construction Storm water Pollution Prevention February 2005 • Add surface gravel to reduce the source of dust emission. Limit the amount of fine particles (those smaller than .075 min) to 10 to 20 percent. • Use geotextile fabrics to increase the strength of new roads or roads undergoing reconstruction. • Encourage the use of alternate, paved routes, if available. • Restrict use by tracked vehicles and heavy trucks to prevent damage to road-surface-and-base. • Apply chemical dust suppressants using the admix method, blending the product with the top few inches of surface material. Suppressants may also be applied as surface treatments. • Pave unpaved permanent roads and other trafficked areas, • Use vacuum street sweepers. • Remove mud and other dirt promptly so it does not dry and then turn into dust. • Limit dust-causing work on windy days. • Contact your local Air Pollution Control Authority for guidance and training on other dust control measures. Compliance with the local Air Pollution Control Authority constitutes compliance with this BMP. Maintenance Respray area as necessary to keep dust to a minimum. Standards February 2005 Volume it— Construction Stormwater Pollution Prevention 4-41 BMP C160: Certified Erosion and Sediment Control Lead Purpose The project proponent designates at least one person as the responsible representative in charge of erosion and sediment control (ESC), and water quality protection. The designated person shall be the Certified Erosion and Sediment Control Lead (CESCL) who is responsible for ensuring compliance with all local, state, and federal erosion and sediment control and water quality requirements, conditions of Use A CESCL shall be made available on projects one acre or larger that discharge stormwater to surface waters of the state • The CESCL shall: • Have a current certificate proving attendance in an erosion and sediment control training course that meets the minimum ESC training and certification requirements established by Ecology (see details below). Ecology will maintain a list of ESC training and certification providers at: www.ecy.wa.gov/programs/wq/stormwater. OR • Be a Certified Professional in Erosion and Sediment Control (CPESC); for additional information go to:www.cpesc.net Specifications • Certification shall remain valid for three years. • The CESCL shall have authority to act on behalf of the contractor or developer and shall be available, on call, 24 hours per day throughout the period of construction. • The Construction SWPPP shall include the name, telephone number, fax number, and address of the designated CESCL. • A CESCL may provide inspection and compliance services for multiple construction projects in the same geographic region. Duties and responsibilities of the CESCL shall include,but are not limited to the following: • Maintaining permit file on site at all times which includes the SWPPP and any associated permits and plans. • Directing BMP installation, inspection, maintenance,modification, and removal. • Updating all project drawings and the Construction SWPPP with changes made. February 2005 Volume II—Construction Stormwater Pollution Prevention 4-47 ® Keeping daily logs, and inspection reports. Inspection reports should include: • Inspection date/time. • Weather information; general conditions during inspection and approximate amount of precipitation since the last inspection. •A summary or list of all BMPs implemented, including observations of all erosion/sediment control structures or pa dices.-The following shall be noted; 1) Locations of BMPs inspected, 2) Locations of BMPs that need maintenance, 3)Locations of BMPs that failed to operate as designed or intended,and 4) Locations of where additional or different BMPs are required. •Visual monitoring results,including a description of discharged Soimwater, The presence of suspended sediment, turbid water, discoloration, and oil sheen shall be noted, as applicable. •Any water quality monitoring performed during inspection. •General comments and notes, including a brief description of any BMP repairs, maintenance or installations made as a result of the inspection. • Facilitate,participate in, and take corrective actions resulting from inspections performed by outside agencies or the owner. 4-48 Volume 11— Construction Stormwater Pollution Prevention February 2005 BMP C207: Check Dams Purpose Construction of small dams across a swale or ditch reduces the velocity of concentrated flow and dissipates energy at the check dam. Conditions of UseWhere temporary channels or permanent channels are not yet vegetated, channel lining is infeasible, and velocity checks are required. - ---- • Check dams may not be placed in streams unless approved by the State Department of Fish and Wildlife. Check dams may not be placed in wetlands without approval from a permitting agency. • Check darns shall not be placed below the expected backwater from any salmonid bearing water between October 1 and May 31 to ensure that there is no loss of high flow refuge habitat for overwintering juvenile salmonids and emergent salmonid fry. Design and Whatever material is used,the dam should form a triangle when viewed Installation from the side. This prevents undercutting as water flows over the face of Spec fications the dam rather than falling directly onto the ditch bottom. Check dams in association with sumps work more effectively at slowing flow and retaining sediment than just a check dam alone. A deep sump should be provided immediately upstream of the check dam. • In some cases, if carefully located and designed, check dams can remain as permanent installations with very minor regrading. They may be left as either spillways, in which case accumulated sediment would be graded and seeded, or as check dams to prevent further sediment from leaving the site. • Check dams can be constructed of either rock or pea-gravel filled bags. Numerous new products are also available for this purpose. They tend to be re-usable, quick and easy to install, effective, and cost efficient. • Check dams should be placed perpendicular to the flow of water. • The maximum spacing between the dams shall be such that the toe of the upstream dam is at the same elevation as the top of the downstream dam. • Keep the maximum height at 2 feet at the center of the dam. • Keep the center of the check dam at least 12 inches lower than the outer edges at natural ground elevation. • Keep the side slopes of the check dam at 2:1 or flatter. • Key the stone into the ditch banks and extend it beyond the abutments a minimum of 18 inches to avoid washouts from overflow around the dam. February 2005 Volume it--- Construction Stormwater Pollution Prevention 4-75 .6S _. r . # ,, il [..-: , • Use filter fabric foundation under a rock or sand bag check dam. If a C iiir' ( blanket ditch liner is used, this is not necessary. A piece of organic or - synthetic blanket cut to fit will also work for this purpose. µ%}. It Rock check dams shall be constructed of appropriately sized rock. II The rock must be placed by hand or by mechanical means(no Il. � R dumping of rock to form dam)to achieve complete coverage of the II ti, ditch or swale andio_.ensure__that-the-center-of-the-dam is-lower-than `.<! 0 the edges. The rock used must be large enough to stay in place given -- the expected design flow through the channel. In the case of grass-lined ditches and swales, all check dams and accumulated sediment shall'be removed when the grass has matured sufficiently to protect the ditch or swale - unless the slope of the swale is greater than 4 percent. The area beneath the check dams shall be seeded and mulched immediately after darn removal. n ® Ensure that channel appurtenances, such as culvert entrances below PI check dams, are not subject to damage or blockage from displaced stones. Figure 4.13 depicts a typical rock check dam. Maintenance Check dams shall be monitored for performance and sediment Standards accumulation during and after each runoff producing rainfall. Sediment r: •shall be removed when it reaches one half the sump depth. F:s ® Anticipate submergence and deposition above the check dam and 0( erosion from high flows around the edges of the dam. iiii v If significant erosion occurs between dams, install a protective riprap Pilliner in that portion of the channel. 'I I i ! . r� I f I iiI 4-76 Volume II— Construction Stormwater Pollution Prevention February 2005 : 3 . View Looking Upstream • 18" (0.5m) - •�- ..} A i • i 1 12 150mm ',V, '' ,i;. \ / //\/\y ao o T�, 96'ac. F -",/A oo.°Q�,00°apap°"ebo as � �r,,,/� / 24"(0.6m) NOTE: a� a 4°0•00>' i Key stone into channel banks and .\/<\ \/ \7 • extend it beyond the abutments a `X. �� \\A ' minimum of 18"(0.5m) to prevent A flow around dam. Section A - A . FLOW -:d. 8' (2.4m) Spacing Between Check Dams 'L' =the distance such that points 'A'and i 'B'are of equal elevation. / '''' A•'o /\ � \ \ obi �.—POINT 'A POINT'S' /,\ \�\l`/ %`/\ \/ / Ic .. ./ /\/ a •\/ //,//,.// NOT TO SCALE Figure 4.13—Check Dams February 2005 Volume II— Construction Stormwater Pollution Prevention 4-77 I BMP C220: Storm Drain Inlet Protection },'• '., 1 • Purpose To prevent coarse sediment from entering drainage systems prior to permanent stabilization of the disturbed area. Conditions of Use Where storm drain inlets are to be made operational before permanent stabilization of the disturbed drainage area. Protection should be provided . for all storm drain inlets downslope_and within_5-00 feet-of-a disturbed-or -` construction area, unless the runoff that enters the catch basin will be conveyed to a sediment pond or trap. Inlet protection may be used anywhere to protect the drainage system. It is likely that the drainage system will still require cleaning. Table 4.9 lists several options for inlet protection. All of the methods for , • storm drain inlet protection are prone to plugging and require a high ,.. frequency of maintenance.. Drainage areas should be limited to 1 acre or less. Emergency overflows may be required where stormwater ponding _____._.-- ti would cause a hazard. If an emergency overflow is provided, additional end-of-pipe treatment may be required. Table 4.9 Storm Drain Inlet Protetion I Applicable for Type of inlet Emergency Paved/Earthen Protection Overflow Surfaces Conditions of Use lg.!( Drop Inlet Protection ' Excavated drop inlet Yes, Earthen Applicable for heavy flows. Easy 111 protection temporary to maintain. Large area flooding will Requirement: 30'X 30'/acre occur Block and gravel drop Yes Paved or Earthen Applicable for heavy concentrated inlet protection flows. Will not pond. Gravel and wire drop No Applicable for heavy concentrated inlet protection flows. Will pond. Can withstand traffic. Catch basin filters Yes Paved or Earthen Frequent maintenance required. - I Curb Inlet Protection Curb inlet protection Small capacity Paved Used for sturdy,more compact with a wooden weir overflow installation. Block and gravel curb Yes Paved Sturdy, but limited filtration. inlet protection L Culvert Inlet Protection _ INCulvert inlet sediment 18 month expected life. trap I 4-82 Volume ll— Construction Storm water Pollution Prevention February 2005 { Design and Excavated Drop Inlet Protection - An excavated impoundment around the Installation storm drain. Sediment settles out of the stormwater prior to entering the Specifications storm.drain. • Depth 1-2 ft as measured from the crest of the inlet structure. • Side Slopes,of excavation no steeper than 2:1. • Minimum volume of excavation 35 cubic yards. • Shape basin to fit site with longest dimension oriented toward the longest inflow area. • Install provisions for draining to prevent standing water problems. • Clear the area of all debris. • Grade the approach to the inlet uniformly. • Drill weep holes into the side of the inlet. • Protect weep holes with screen wire and washed aggregate. • Seal weep holes when removing structure and stabilizing area. II • It may be necessary to build a temporary dike to the down slope side of the structure to prevent bypass flow. Block and Gravel Filter - A barrier formed around the storm drain inlet with standard concrete blocks and gravel. See Figure 4.14. • Height 1 to 2 feet above inlet. • Recess the first row 2 inches into the ground for stability. • Support subsequent courses by placing a 2x4 through the block opening. • Do not use mortar. • Laysome blocks in the bottom row on their side for dewateringthe pool. • Place hardware cloth or comparable wire mesh with V2-inch openings :$ over all block openings. • Place gravel just below the top of blocks on slopes of 2:1 or flatter. • An alternative design is a gravel donut. • Inlet slope of 3:1. • Outlet slope of 2:1. J • 1-foot wide level stone area between the structure and the inlet. • Inlet slope stones 3 inches in diameter or larger. • Outlet slopeuse gravel 1/2-to 3/4-inch at a minimum thickness of 1-foot. /11 I February 2005 Volume II- Construction Stormwater Pollution Prevention 4-83 Plan View A Drain_ �:� ,oP n. Grate ` ` :('" _ �� of '�i! Ua' �•;%3a• r' !-' •: .0G` L.'a;�. ; ; Concrete ��� }zi '7� .,„,,,,.oc'...,,, Block ::---*x',.0 C;•,. N:[1 '?G'= ar. `•C �. Gravel o c. r n,.G Backfill o Hr— "L . r�l c 7 'dfp^'a;'''). 9'ra rho� Ju) 5 i'SQ\o Section A - A Concrete Block Wire Screen or Filter Fabric Gravel Backfill Overflow Water Ponding Height .. !�ft8 _ Water J_ 113 �6U' °n4.c�° /'% i,/ p Inlet •;\" %i' ' ,\./,,, Notes: 1.Drop inlet sediment barriers are to be used for small,nearly level drainage areas. (less than 5%) 2.Excavate a basin of sufficient size adjacent to the drop inlet. 3.The top of the structure(ponding height)must be well below the ground elevation downslope to prevent runoff from bypassing the inlet. A temporary dike may be necessary on the dowslope side of the structure. Figure 4.14-Block and Gravel Filter • Gravel and Wire Mesh Filter- A gravel barrier placed over the top of the inlet. This structure does not provide an overflow. • Hardware cloth or comparable wire mesh with %2-inch openings. • Coarse aggregate. • Height 1-foot or more, 18 inches wider than inlet on all sides. • Place wire mesh over the drop inlet so that the wire extends a minimum of 1-foot beyond each side of the inlet structure. • If more than one strip of mesh is necessary, overlap the strips. • Place coarse aggregate over the wire mesh. • The depth of the gravel should be at least 12 inches over the entire inlet opening and extend at least 18 inches on all sides. 4-84 Volume ll- Construction Stormwater Pollution Prevention February 2005 } • Catchbasin Filters- Inserts should be designed by the manufacturer for use at construction sites. The limited sediment storage capacity increases the amount of inspection and maintenance required, which may be daily for heavy sediment loads. The maintenance requirements can be reduced by combining a catchbasin filter with another type of inlet protection. This type of inlet protection provides flow bypass without overflow and therefore may be a better method for inlets located along active rights-of- way. • 5 cubic feet of storage. • Dewatering provisions. • High-flow bypass that will not clog under normal use at a construction site. • The catchbasin filter is inserted in the catchbasin just below the grating. Curb Inlet Protection with Wooden Weir—Barrier formed around a curb inlet with a wooden frame and gravel. • Wire mesh with '/2-inch openings. • Extra strength filter cloth. • Construct a frame. • Attach the wire and filter fabric to the frame. • Pile coarse washed aggregate against wire/fabric. • Place weight on frame anchors. Block and Gravel Curb Inlet Protection-Barrier formed around an inlet with concrete blocks and gravel. See Figure 4,14. • Wire mesh with '/z-inch openings. • Place two concrete blocks on their sides abutting the curb at either side of the inlet opening. These are spacer blocks. • Place a 2x4 stud through the outer holes of each spacer block to align the front blocks. • Place blocks on their sides across the front of the inlet and abutting the spacer blocks. • Place wire mesh over the outside vertical face. • Pile coarse aggregate against the wire to the top of the barrier. Curb and Gutter Sediment Barrier—Sandbag or rock berm(riprap and aggregate) 3 feet high and 3 feet wide in a horseshoe shape. See Figure 4.16. • Construct a horseshoe shaped berm, faced with coarse aggregate if using riprap, 3 feet high and 3 feet wide, at least 2 feet from the inlet. • Construct a horseshoe shaped sedimentation trap on the outside of the berm sized to sediment trap standards fdr protecting a culvert inlet. February 2005 Volume ll- Construction Stormwater Pollution Prevention 4-85 Maintenance • Catch basin filters should be inspected frequently, especially after , ( Standards storm events. If the insert becomes clogged, it should be cleaned or Ireplaced. • For systems using stone filters: If the stone filter becomes clogged with sediment, the stones must be pulled away from the inlet and cleaned or replaced. Since cleaning of gravel at a construction site may be difficult, an alternative approach would be to use the clogged - ; 1 stone-as-fill-and-put-freslrstone arourrd the Wet. • Do not wash sediment into storm drains while cleaning. Spread all excavated material evenly over the surrounding land area or stockpile and stabilize as appropriate. I ii I 1111 0 Ol '''. : , 4-86 Volume /1— Construction Stormwater Pollution Prevention February 2005 BMP C233: Silt Fence Purpose Use of a silt fence reduces the transport of coarse sediment from a construction site by providing a temporary physical barrier to sediment and reducing the runoff velocities of overland flow. See Figure 4,19 for details on silt fence construction. Conditions of Use Silt fence may be used downslope of all disturbed areas, • Silt fence is-not intended to treat concentrated flows,-Liar is itintended to treat substantial amounts of overland flow. Any concentrated flows must be conveyed through the drainage system to a sediment pond. The only circumstance in which overland flow can be treated solely by a silt fence,rather than by a sediment pond, is when the area draining to the fence is one acre or less and flow rates are less than 0.5 cfs. • Silt fences should not be constructed in streams or used in V-shaped ditches. They are not an adequate method of silt control for anything deeper than sheet or overland flow. Joints in filter fabric shall be spliced at posts.Use staples,wire rings or 2"x2"by 14 Ga.wire or equivalent to attach fabric to posts equivalent,If standard strength fabric used I I •:e °0fa':ii I Filter fabric I . . .. .:°` I I I •a....... ... I I ;•: .':i1�:11;��.1T=tflAllrif=�'ll'�lTIl'F`,'il^` MT: —191=11=D . 7 l 6'max t� r'° - Mir trnum 4"x4"Trench '® , Backfill trench with native soil r V" Post spacing may be increased or 3/4"-1.5"washed gravel to 8'If wire backing is used 2"x2"wood posts,steel fence posts,or equivalent • Figure 4.19—Silt Fence Design and • Drainage area of l acre or less or in combination with sediment basin Installation in a larger site. Specifications • Maximum slope steepness (normal (perpendicular)to fence line) l:1. • Maximum sheet or overland flow path length to the fence of 100 feet. • No flows greater than 0.5 cfs, • The geotextile used shall meet the following standards. All geotextile properties listed below are minimum average roll values(i.e., the test result for any sampled roll in a lot shall meet or exceed the values shown in Table 4.10): 4-94 Volume II— Construction Stormwater Pollution Prevention February 2005 1 --: - : . . I_ BMP C235: Straw Wattle �' IPurpose Straw wattles are temporary erosion and sediment control barriers ` consisting of straw that is wrapped in biodegradable tubular plastic or { similar encasing material. They reduce the velocity and can spread the i flow of rill and sheet runoff, and can capture and retain sediment. Straw wattles are typically 8 to 10 inches in diameter and 25 to 30 feet in length. `�-------- 11 The wattles are placed in shallow trenches and staked along the contour of disturbed or newly constructed slopes. See Figure 4.21 for typical 01 construction details. Conditions of Use • Disturbed areas that require immediate erosion protection. li • Exposed soils during the period of short construction delays, or over t winter months. • On slopes requiring stabilization until permanent vegetation can be established. il • Straw wattles are effective for one to two seasons. • If conditions are appropriate, wattles can be staked to the ground using willow cuttings for added revegetation. • Rilling can occur beneath wattles if not properly entrenched and water I can pass between wattles if not tightly abutted together. 0( Design Criteria • It is critical that wattles are installed perpendicular to the flow direction and parallel to the slope contour. • Narrow trenches should be dug across the slope on contour to a depth ! of 3 to 5 inches on clay soils and soils with gradual slopes. On loose soils, steep slopes, and areas with high rainfall, the trenches should be El dug to a depth of 5 to 7 inches, or 1/2 to 2/3 of the thickness of the wattle. • Start building trenches and installing wattles from the base of the slope and work up. Excavated material should be spread evenly along the 111 uphill slope and compacted using hand tamping or other methods. 0 • Construct trenches at contour intervals of 3 to 30 feet apart depending on the steepness of the slope, soil type, and rainfall. The steeper the slope the closer together the trenches. I . Install the wattles snugly into the trenches and abut tightly end to end. Do not overlap the ends. • Install stakes at each end of the wattle, and at 4-foot centers along Ientire length of wattle. • If required, install pilot holes for the stakes using a straight bar to drive I holes through the wattle and into the soil. • At a minimum, wooden stakes should be approximately 3/4 x 3/4 x 24 ( inches. Willow cuttings or 3/8-inch rebar can also be used for stakes. I i. 4-100 Volume I!--Construction Stormwater Pollution Prevention February 2005 ' -; • II ii Maintenance ' ® StAces should be driven through the middle of the wattle, leaving 2 to 3 - Standards inches of the stake protruding above the wattle. • Wattles may require maintenance to ensure they are in contact with soil and thoroughly entrenched, especially after significant rainfall on steep sandy soils. ® Inspect the slope after significant storms and repair any areas where wattles are not tightly abutted or water has scoured beneath the wattles. '4Y 3 <i _.I -4i -'7'.A '''\1,;;.:10-', ii Straw Rolls Must /, j Be Placed Along `j�\' 0/ 1� �'-- `\ Slope Contours /Ne• \2/' Adjacent rolls shall tightly abut :7/ AL ,, .‘r_,A. . ilif ,,, , )/ ),'.:*1_\ ; . . `, 7. (:‘-- ' 14- 4 :-.' ,, F 10'-25'(3-8m) /{ , �I, i 9 il �'J �� �\, N7 ' % ,t~ j\ • \ Spacing Depends \ J on Soil Type and (\ Sediment,organic matter, Slope Steepness and native seeds are captured behind the rolls. / ' 3"-5"(75-125mm) . ,,,, ( -\/,/•>,...4- %\\, ` :�./>. (200-250mm) \�\\>ti, • J / ' �iY ' Live Stake . i\ ,- � j\• • 1"-X-1" Stake - - not to scale (25 x 25mm) I t"- A NOTE: I.Straw roll installation requires the placement and secure staking of the roll in a trench,3"-5"(75-125mm) t deep,dug on contour, runoff must not be allowed to run under or around roll. ' 1 Figure 4.21 -Straw Wattles • February 2005 Volume ll-Construction Stormwater Pollution Prevention • 4-101 ..' . 1 \ Emsk Control Maros to kasidcatal t ,b,,A m• �� `� LOT 4 I p6BREWAi"ED LEGAL DESCRIPTION' cnvnfaM mode w -\ TOWNSHIP 35 NORTH,LOT 6, 46 NORD-I T et RANGE I SECEASTnWM.ON 22CITY �_ \ p{."aPa-rryBicht Ns Wlb+ln = \ OF ANACORIE$ SKAGY7 COUNTY, STATE OF a>sa eY61"^ ^ °"°"nr""""" � . \ LOT 5 WASHINGTON,A.F. 201705020028. :G'.. rnaa,aean aano-almyaap d°d mmadmymnd\\ emrm erev�s man x,al s��d�evsfs�r,aLAND Cr �. T.R 1♦ I-U131 Mtl+aMxge ayskms mhapea dearae biheN \\ Imllfie pm[edt Gly el ar�aemacs 0apr,° � 11Uh1E5 h\i7 COAS�1UNITS Gti \ 6raG9rmd emnsv�e4ar mrtbaemxs artd wads anal ib \ bsWl iat Vw beginning at...don ant mafn'alned GENERAL NOTES � \ 1 du Ma N°deaLW,mf thm precast Additlaaf mea;se9 GENERAL NOTES '�'A._ \ y rod?.m4Wmd such AS writ,pads w eras.esalxl � s \ 1 wad awe,ant i„glduen.Nu Nadia akrvnW la petal OWNER: \ \ I anletl7sOttix \\\\ \ 10.80' 85.60' E.Ata adla uspawd amlwill nm ba maimwe k,M.(7a LANDED GENTRY dnyas,anp mmwal:amr�n«,sum lrldays In■n cry 504 E.FAIRHAVEN \\ amamn Nunbal 9fely auUhmd r4v,ure appnaaa BURLINC70N, WA I— 3L00'-� 98233 ESC medwd+(amMNp,mWdtkp,pbslk wvMrq,ha) \ -- - - — - -- - - - — — — — — - c, T.t2).asoks pass w u,a naymwp mr the v.elaeaa«, 1-36G-755-9027 U to...,Idd alswro«f amass anal he reArvedus \ PROPOSED PERIMETER kanuly.nkn«,�wno-ewaaaalnnmr'rae°nr«ua SILT FENCING(�y P}PER x r alms Bpv na areas shall}A m cme sus as BUrLDINc: /_ \\ , PLACE SILT FENCING ON '" Y DOWN STREAM sloe Cf +.+' 4N$DOEJ. 2109SF 197;5- yt��t„o-,cmrth*.nn-'ra�rl� GARAGE- 1,003 SF EXIST - j md)ecait pmP�aas mrdrd,upe le�d°s. \�` ..�•r., \ GRADE d/ ._..._.,- ..-- ....-. ..--.+_.- m a Paaaleas to as Erasion cant lddaacn a.we;-a.ma l\ SD / �—"' „ ,_-•. .��..� ,— !...._,r..,�...... �un rczd t>a�wma�wwedoerpavµ w,�ik,rnmfCAL \ .t' $OIL STOCKPILE LOT UNE, :/7141114\4. — ����"/ ZONING:R,_"SIDENTML LOW DINSITY / \ / IIII /hp SETBACKS: Pdir \, ./' \ p SSII LOCA7'DN / I \ \ !' — --�- - -- (COVE$NLtTH_ _ __ _ - -- Ex55r T SCtN CUIOUNESOMPIIANCE \' PLASTIC DURING __ GRADE SfDEYAR05 MfN 5', I S'COMBINED \\ \\a f /^� \ STORM EVENTS] PROPOSED PERIMETER h REAR YARD MIN 30' {#/� "` jj''f �i\- SILT FENCING(7yP)PER • FRON7 YARA MIN lD', 20'GARAGE G. \\\ / \ I.911Ojb{72 T0.PLAN II \� I 1 „\\\\ \ // ��,Q 15 S �"�•~� PROPOSED A'SCH :! : T-'ALLOWED: \\ 9 ,\\.E'� A�SRN oS��„ �_ 40 PYC DRAIN LME Seay` y �\ POSE UND£R5, \\•1 \\ N5 �, ! f� a� .{j IliC`P05��s� �`CONSTR�ICTION PROPOSED IMETER FENCE CE, Z 1N DRIVEWAY ^\-\\, '\ �Ro sEDn"scN/ \, i ! "_`Z—------ ��yGY\Yr 44 PV DRAINS 1 i I `v ExtRF.sANmARY /�E 7sr.ss l $EVVi R LWE M (IOIT e Qngia , `1 LOT COVERAGE J\ BUILDING AREA: I � if `� lI EXIST 91,4 `�' { g 7 —PRQPOBED 4-D1A. b 7 SANITARY P LOT AREA: GRgOE �+ia�y), M [ 7,682 S.F. \ Nix WMt r _ _ _t J PE2,29�/�68Y29.8% f`� r ` r LOT 6 `� 4v O la,FRKN&U1LI Y) I 1 J P MAXIMUM ALLOWED:37.5X . �� SET0 <5NT LINE ,—� + FF MAIN:20B.0D II 1 li 70,vR°^sErRA K ills _1, __, FE11:19B.D0 • IMPERVIOUS COVERAGE 1 It GARAGE } � �}p-I) S BUILDING: 1,935 S.F. \� PaµCH j III-• • NUILO NG SETBACK PA>)O STEPS/WALKWAY: 289 SF t-_ I LhNDNJO 11 30'FEAR YARD N PORt L' 96 S.F. I. \\\\\ 1 f `. SS 1 ( y�y I; pR!{�'WAY.• 413 SF 1 P(, V1,,_II � EXISTING 1 $ 1 i`07 2785 i I CONCRETE .i�• STORMDRAIN I ►-- 01�� — • I LOT AREA. ` I CURB 9GUTTEft i LINE:(TYPICAL}t T'-- Li 7,682 SF, I I , I • I r qI PERCENT COVERAGE l I. D1° --1 1 2,7R5/7,682=35..3% } MAXIMUM AL{OWED;48.0% i I lip - 1 l • • I' I `j,'II`�.'� :rl ,l Ids,/� 1 i a oawyW ji_aPa I; ! .f _ • I LOIN 30 r I a 11; r 8��( .`� 1'} '�' i .I: 'I r11 GE:196.W p t @ sc te a: I'S 7 i il-c2 s,,cp` � 1 ( Ja '.c a)1 iI!,i,/,. GARAGE GE:ts600 LOT LINE soce L. It I TEMPORARY CL .TRUCT)ON ENTRANCE -- 11r,, O f l • 1 II a�R18T-S'jl s1,�1 ;]'.''� 1,1 --4 rk — Isiz o F sYD�puN tiao.taoz .I i of i Q�� 'I, i' ) aF% • �: Z LOT LINEd !; 5ti� oo — r } ter- ` els So f• GRAPHIC SCALE IMMIIE RIGFiidF.WAYLINE-�,. 08o 9,piy. o oaT . .--L _— — —- •— -—SQ9�SV J T �.Q�� ( 6 0 3 6 i2 PROPOSED 1,____-------- 198,t PROPOSED 4"SCR p0y� �UN MN '� PERIMETER SILT + EXIST �� 40 PVC GRAIN LINE h ( IN FEET ) fENCr��i11''P))P1=R�� t 1 GRADE MGT WSDOT STD.PLf�Nf --,—„--,--..,----—. , GRADE)\ Hartz. So ale: f inch fi Feet I-30.1602 ffI �i...s+..rr_.�..�,�—..-.... ,._••,_, 2+P2 "—`—^ —•�— —.�,_ PROPOSED PERIMETER 48 NORTH LaT LINECONSTRUCTION FENCE • I( a LOWMAN 1 PROPOSED PERIMETER 2-CAR GARAGE RIGHT �° CONSTRl1GTiON FENCE w .-. _ - u I SMALL PARCEL STORM PLAN ', 24 oD' I ' LOT $ 1 11 I, LOT l 100,,00' 31'00 1416 LATITUDE CIRCLE I I I ANACORTES,WA { - `I FH• k II /DBNO: PLAT OF"48 NORTH' I I DESIGNED; LG LOT 29 ' 1 I ORAWIr ,'I I 1 i GATE: /�0 511 712 0 1 7 I I SHEET 1 of i I LOT 4 �� LANDED GENTRY �� LOT 5 �losles nxn coal�IUNl�lr:s \\`\ GENERAL NOTES \N. OWNER • \ LANDED GENTRY 50f E FAIRHAVEN • BURLINGTON, WA \\\ \\ -l0.60' —15.ao' -31.00' 14360J-755-9021 98233 \ \\ ._ _ mama LEVEL AREA- 827 SF \ O.'@ UPPER LEVEL AREA- 2103 SF \ ❑Ly; TOTAL LIVING AREA- 2.938 SF GARAGE- \ 1;,':9 SITE: \ - m TYPICAL _ ,% ZONING: _„/' -\- — IBT.s R2-RESIDENBAL LOW DlNSITY 1.003 SF _� i s�_ � \\55. GRADE 1�,/� - t\ so LCr uNE t SE�AGSEIBACItS IN CAIfPLANCE \ \ `. 'EX T 510EYARD5 MIN CITY IN US'�15'COMBINED REAR\ 1, EDNTY YARD ARD MMIN IN 3}D; 20'GARAGE \.,o HEIGHT iw �'' / PLACE CONSTRUCTION ALLOWED: 35' \\ PRGPGSEO IN- FENCING AROUND EXISTING MAX.MAO. ALLOUNDER \\ D 9R � d� I 4o PVC DRAIN!TIE --_--- TREE AT DRIP LINE PLUS 6'. PARKING: 1 2 IN GARAGE; 2 1N DRIVEWAY \ PROP ED4"SCH / 1 + LOT COVERAGE 49 PVCS RAW LINE } _ BUILDIND AREA: �\ EXIGT.BS \ 1 If , i $29!SF. EXIST.SANITARY + CONNELTION / 1 LOT AREA: ` SEWER LINE N• tLOT61 - 7.SB2 SF. 181.4 \ 1 PROPOSE04'DIA. PE}iik7JT COVERAGE `EXIST I'S \ 1 ci SANffARY SEWER II 2281 J Z882=29.8X GRADE MAXIMUM ALLOWED:37.5X „s, s .,_ __�_ .� ..e'fi LOT 6 ' N 'FRONT YARD i IMPERVIOUS COVERAGE �r_ • 10 &U'6LITY II BUILDING: 1,935 SF. �� 4 SEA {ENT UNE I _ I STEPSjWALKWAY. 6 SF ,T', FRONT '�X ll PAAOR 284 SF 20� GE SE j 30'REAR YARD r• '\ 1 GARA I I 3UILDING SETBACK 1 0 2855. \\ y LANDING .8 1 PO CH PLACE CONSTRUCTION m 1 FENC3NG AROUND EXISTING L07 AREA: r+ i s5 1 - .. .. T d 7,682 SF. \ 1l EXISTING I} 1 E ��� / 'O TREEATARIPLINEPLU58'. 1 l STISTING IN l~ 1)/ PERCENT COVtFAGE. I , / 2.785/7,682=38.3X 1 CONCRETE LINE(TYPiCAL�` I� J�i '� 1 ' CURBS GUTTERli• !t ��~�l_ MAXIMUM ALLOWFD:48.OX 1 I I if! 11 .t J ��� �\ I 1\ � 4� LQTi 30 =� { z 1 SD CRNEWAY yO�P pJ� $ GARAGE LOT LINE 1 VW.0 I 1 oa Jf G 'a 0 -:I� IL I' a �� / 1 z 9 C6 MICR ' ��. // ___ EXIST.SO E CONNECT VA _ (LOT 6} �� �// y GRAPHIC SCALE �i 6 3 6 ?2 �2�_ _., _ _ �N' - PLACE CONSTRUCTION RIGHT-LOT OF-WAY `7_ FENCING AROUND EXISTING ( IN F6.ST RIGN7-0E-WAY LINE-----1------ y h �8 49 PVO DRAINEO 4'SCR 1 TREE AT DRIP LINE PLUS 6'. Ffariy, $C¢f Y l%T = 8 Feet GRADE m A9 PVC BRAIN LINE GRACE II 1' 48 NORTH • ExIsr LOT LINE q LOWMAN } .'` /- 2-CAR GARAGE RIGHT sr, °z !'^ SITE PLAN _ — _ — — "-III ,� E / LOT 6T (P13 N J 2a.oD' ; I 45.00 I I 31.00' 1416 LATITUDE CIRCLE 1oD.oa' i ANACORTES,WA f � !� LOT 7 ( Ioallo PLAT of^as NORTH" � �/� , 0ESIGNED: LG DRAW .. `, FH 1 1 ___I I ,`t DAB., D6I1T12a17 I I SHE 1 of 1 I�OT 29 1 I \�.` •``\ \ , LOT 4 \ / I / / +I e��r,c°r,ow rr°e�'or"anluu„aatcw,vuvaar- �� ` AB6REv1ATE0 LEGAL pESCRlPTION: c'"°""°" elNi \ ,\ \ LOT 6, 48 NORTH PLAT PLR), SECTION 22, I / TOWNSHIP 35 NORTH,RANGE f EAST. W.N.. CITY a wr�Flec�ba^"a.nt Mann9.,nem Paa�a�.0 ben 1 OF HINGTOANACORTES. SNAG1T COUNTY, STALE OF P pr�wwp�^prMrr�arnem..w. \` j l / LOT 5 + W.45! GTar. F. 201705020028. \\ Ie, oaltl�nm.ra,anu,.w„eln+mbto.ase,.a�- c. ,I,e.m draneasMmen tl pin.medal incase_ LANDED G EE N T RY a r,a4Wa,�ln.ge.r.lem.:hill he dxa,,.amur DOMES AND COMMUNITIES �m�an City MArater.prior m amep,y,m / VV \ `\ 1 / 6�dxriswctlen anwnus ara -dsrlW be oldie In.J1duFg an b n mnpAou hooted,'meawms .al b ing.I�...bun]on Alnea .ba. '. nwa.11pad.,°avaa�a,� GENERAL NOTES � VILEii w.aoan_rm maa eaua.,e\ 10.80' nwlrwn n°I h°san„wlln\ '1� mmemaie"V:13 rmevnin ua.pw�m, " BU I FAN, WA N esc mnmo4n[eeeaaMn.mnkhl on+e'2+gaal 96233 F. TV.w(2)weeks prior le Ne beginning el Ne war...eon\\ '1 \\ % - — — __ _ _ _ _ / / Icaar,1xF ecmm.a areas shag be�+nn.ea 1-060)-755-902f jj /J- I PROPOSED PERIMETER �/F \ —_ __ w _f IJOMMY Mich ones eon be naked In prcparninn ladle \ 11 PLACES EENCiIaGGN r"n= SILT FENCING(TYP)PER wrrrnrrntn..oamman.rana.naone seeded,.nlm,one DU1L01NG` A \ t f DowN-REAMsoDEaF / f w BMPC233 I+Ip�,;,r„"e�°�"�"�mmee� wa �.Asem UPPER VEL AREA- 2109 SF \' 4 —_- _ - - - -- STOC PILE,PER BMPC47S _ _ 1v' _ reme�awor..rae.nmlb..vo-Rnrt.amme Pmlaw _ TOTAL CUING AREA- Z938 SF —I.twwir.Th4 Pr#I Manage,i—••a'rh vMerrN 46." �\ E%SL _ I�j edAcantpw.s+a hrtreL,e9ohr2_s /\_•_\ 1 6S '} f91.5 �� ir, r?kn.I are,.ado,m aw«rv.a...+..a. —I GARAGE— 1,003'SF r'I' \ ` GRADE ,-a, rirSOIL .-.--`r-,- .-a-- ' / .-�+--.�.-.`a- �� �, e- ---... �, o. Penalties l«e.Erosbn eanwlAo,.ibn arz auWnlma SITE: • ��.�,r �V `�/9 b3fx1M51a1�6 paw under Diaper,].F6-I`enNtl�im i \i .a r . D / , R "oration.esm dar la m,sedcreeaewuram�wlauon. TYPICAL lb I / " �"^- Z R21NG:RESlDFN17AL LOW DINSYTY / \ STOCKPILE ruNE 1'I \ LCCATCN �� 1 sETBAcxs //� \ 20s, ALL SE78ACK5 1N COMPLIANCE \ I \ �` OVEB VJIH - - -- - T - I/ Ex.i VNTN CITY GUlOL1NE5/ 0 PLASTIC DURING -/ V -''E SlDEYARDS M!N 5; 15'COMBINED I \,'� I •✓ /' a�0\� STORM EVENTS) PRO fG9e6PERIMETER ' h REAR YARD M!N 3O' I SEGO BMP Fe ING(fYPI PER { FRONT YARD MIN f0;20'GARAGE I LET'^�TECTICN �J4 l4R� / PROPOSED 4'SON / HEIGHT. - P' . BLOCK d ; I � q 40:V=DRAM GNE % d)� R�DALLOWED: 35' SED: fR 5\---- )i. G.. .TER TY• lI(f l �� ���� k O\� Ili 1 s , 0' I 5�05 PROPOSED PERIMETER PAR!(ING: V - \ Il I ( ' m'b QA CONSTRUCTION FENCE 2 IN GARAGE, 2 IN DRIVEWAY 11 L .. '• — PER BMP C103 PI�DYbSED T sCH V 1 ! / + ��C.) 40 PV''SS11DRAIN LIN I I P. \1 EXISE.SANITARY ExlsT�ssS / l , / SEWER LINE ' M [Loa s cTTQy /I Il 1 I T/ / ( % LOT CO l/ERAGE 'lk l f it o '! I I / BUILDING AREA: �� 191.4 (i 1 o ff / 2,291 S.F. E%IST ( I PRCPOSE04'01A. r 7,662 SF. t - O wM GW+O i SANRARY SEWER ` f/ LOT AREA: _ GO r 1 _ 161 I I ` + i 53 /l �S 1�I PERCENT COVERAGE: G� ' 6 z29r i@@2=29.&S 1j0'FCKN�UnL IIY 1 /LOT I r- _ l l° A E T IJNF �i 1 NAXIMUTA ALLOWED:37.5� m EASEL RD ; L / FF MAIN:203.00 I� 11 l 2° Fc�se ^aK LaII'r�i LL I FFLL:,96.89 fIMPERIOUS COl/ERAGECRA I ( f / / 1 Q 13i. 1 iLDIN 1.935EPD CH E�kS ___ - I 11 ! .® . BULDNGSECK� �-. EXISTING 4 i j /� I I RWAY.. i • 11 f I /-- CONCRETE STORMOR�IN II OEM�r l�_I / . 6' $ r LOT AREA: ( CURB&GUTTER LINE(TYPiCAL}I �. / I 7,6@2 S.F. I I LET PROTECTION - I 1 /// P 2C r COVERAGE 3fl3x I PER C220,CATCHBASIN ��-I �T I Ir" �)�i1i d ��I+ �'��'�°� I \�'- 7� I ILTER TYPE _ Y, r 1.... —/' _-2 II MAXIMUM AILONED.•9d0X J i V • 1 I , k{ I 1 i/ -- /j\ LOTj 30 / r ,. l Iw 1 ,�(,���_ %r f,lr / Ii o �!` • JIsD ll �,'I�'-I,0I glc4``+ -� lg( 1I I I %r p� E � ,I i N ll, / G4PAGE GE:106.00 q it i SOCe I ? - r y l'..'II,\r / I /I LOT LINE ! I I fI /' / -- -TEMPORARY C TRNCfON ENTRANG ---� J OG7.S{� !(�.if r1 --r`,i` Jr PER 6MP C105i, I M1 �1 ,GG��66�144ES7�IG,WI i. Ifl_. ' I`/II� , �I 5 O i , (slzR io Fm I .r,DYsy"_,�I (1 l 4 \1� L --- I. / I j LO7NNE8 pS�O 1 i,'r- _ plvv5 GRAPHIC SCALE / RIGHT-OFWAYLINE '�� I o I 0 I _ _ �_J �QOS 6 3 6 12 rI PROPOSED ��_ 196I1 I m Q f PROPOSED 4'SCH ��� i 4 PERIMETER SILT EXIST !I40 PVC DRAIN LINE o FENCING(TIP)PER G DE I, / / 0, J , HOTLZ. SOaia; 1 Inch. = B FYB! BMP C433 /' �'rr II + % a 210.2 IN 1 nT _- a a--b� .- --..-a _-� ..--n GAT `---'. II j // �� GRADE A PROPOSED PERIMETER INLET/TROT c DN LcNE" �� CONSTRUCTION FENCE 48 NORTH ' • ss / I / PERC22O,B O4K 8 :---)-I a PER BMP C103 COWMAN ,�/ I GR�SVEL FIL I TYPE PROPOSED PERIMETER c P _ CONSTRUCTION FENCE ' ✓� 2-CAR GARAGE RIGHT I I - - - _!, _ _PER 1P 1os= — z• /ffiliiiilar 2 (7°7 J �i -mi3 ./ // EROSION CONTROL PLAN raooD' I '100 LOT 6 (P133664} 1416 LATITUDE CIRCLE i j I LOT 7 II titi9 ' i ANACORTES,WA / // FH ' r 1 I I !+ / - !+ I /'• JOG NO: P{ATOF"48NORTH" 110T 9 1 1 V 11 I _� �- DESIGNED: Lc I DRAWN: I i /\ DATE: 07110l2DI7 ''' ,' . � r /i r I!I� r I i� . f f' I 5H�` 1 of 2 0 =1•eV Cep./ LANDED GENTRY 11 o hr E S AND COMMUNITIES GENERAL NOTES OWNER: LANDED GENTRY 504 E. FAIRHAVEN BURUNGTON, WA 98233 f-(360}-755-9021 BUILDING LOWER LEVEL AREA- 827 SF UPPER LEVEL AREA- 5109 SF _ ItlTAL LINNc AREA- 28.76$F GARAGE- 1,003 SF SITE TYPICAL ZONING: R2-RESIDENRAL LOW DINSITY SETBACKS ALL SETBACKS IN COMPLIANCE WITH CITY CUIDUNES SIDEYARDS MIN 5; 15'COMBINED REAR YARD MIN 30' FRONT YARD MIN 10', 20'GARAGE HEIGHT• MAX.ALLOWED: 35' PROPOSED:UNDER PARKING 2 1N GARAGE. 2 IN DRIVEWAY LOT COVERAGE _ BUILDING AREA: 2,291 S.F. LOT AREA: Lnwl,-3T ,01 f} _ , 7,882 S.F. .,GI PERCENT COVERAGE: 2,291/7,682=29.8X • MAXIMUM ALLOWED:37.5X IMPERVIOUS COVERAGE $U11D1NG 1,935 SF. L1.au, frIN 1.1 STEPS/WALKWA Y.' 57SF. I PORCH: 96 S.F. pPAA�77(0 284 S.F. RlVFIYAY.• 2 785 TLOOTTAAAREA: 7,682 SF. !p. PERCENT COVERAGE: ��•r r , Z785/7,682- � � l.�w � � MAXIMUM ALLOWED:45.0% firt�. SITE LOCATION SI1ip I 'I1r . r.1'.I4 I1 ADII3:=S- • �In+ u• GRAPHIC SCALE 6 3 6 12 ANACORTES, WA ( IN PE ) Horis. Scale: f Inch = 0 Past 48 NORTH LA+I,III- 1 LOWMAN • 2-CAR GARAGE RIGHT • r.Go gle EROSION CONTROL PLAN I N, Map data @2017 Goo& 1000hL LOT 6 (P133664) 1416 LATITUDE CIRCLE VICINITY MAP ANACORTES,WA LOT 6 (P133664) 1416 LATITUDE CIRCLE MR NO: PLAT OF"48NORTH" ANACORTES,WA DESIGNED: LG DRAWN: DATE, 07/10/2017 SHEET 2 of 2 Or-Ft car I Il GENERAL NOTES: I. ALL DIMENSIONS ARE TO FACE OF STUD WALL UN F55 NOTED OTHERWISE. 21. TO COMPLY WI 201S WSEC SECTION R406.2,THIS HOUSE(3,041 SO.FT.) VERIFY DIMENSIONS SHOWN ON PLANS,DO NOT SCALE OFF DRAWINGS, WILL NEED 3.5 ENERGY CREDITS. TO ACHIEVE THIS,THE FOLLOWING LANDED GENTRY OPTIONS HAVE BE SELECTED FROM TABLE 406.2, 2. FRAME MAIN FLOOR EXTERIOR WALLS W/104 5/8'2x6 STUDS•16"O.G. OPT.44(.5 CREDITS), EFFICIENT BUILDING ENVELOPE. SEE NOTE ME II O N!E 5 AND CO\!NI U N 1 T I PS TYPICAL FRAME LOWER FLOOR EXTERIOR WALLS W/104 5/8"2NG STUDS FOR INSULATION VALUES. •!6'O.C.TYPICAL OPT.2c(I.S CREDITS), AIR LEAKAGE CONTROL 1 EFFICIENT VENTILATION. REDUCE THE TESTED AIR LEAKAGE TO LS AIR CHANGES PER HOUR MAX. 3. FRAME MAIN FLOOR INTERIOR WALLS W/104 5/5'24/4 STUDS•16'O.C.W/ 1 ALL WHOLE HOUSE VENTILATION REQUIREMENTS AS DEItNMINED PER IRO 54'-0" I/2"GYPSUM WALLBOARD BOTH SIDES TYPICAL. FRAME LOWER FLOOR SECTION i'11501.3 SHALL BE MET W/A HEAT RECOVERY VENTILATION , INTERIOR WALLS W/104 5/8"744 STUDS•16"O.C.WI 10"G1116 BOTH SIDES SYSTEM W/MIN,SENSIBLE HEAT RECOVERY EFFICIENCY OF 0.35. 2T-6" 74-4' 2'-0" TYPICAL UNLESS NOTED OTHERWISE, OPT.3a(1,0 CREDITS). HIGH EFFICIENCY HVAC EQUIPMENT. USE GAS ' FIRED FURNACE W/AFUE 94%. / 12'-T" 3'-3" IT-8' 7 10" 10'S15" 11'2'h" 4. FRAME GARAGE WALLS WI 7,46 STUDS•IS"O,C,(VERIFY HEIGHT OF OPT.54(,5 CREDITS), EFFICIENT WATER HEATING, ALL SHOWER HEADS 1 T•-0" 5'-'t" 6'-11" 5-9" 5%94'2" WALL ON-WITE PER AS-BUILT FOUNDATION) KITCHEN KINK FAUCETS SHALL BE RATED AT 1,1B GPM OR LESS,ALL OTHER / / ��•q LAVATORY FAUCETS SHALL BE RATED•1,0 GPM OR LEES, 9'2" 9'2" S,-2�� V 1 5. PLUMBING WALLS TO BE FRAMED W/2x6 STUDS•16"O.C. SEE PLANS FOR LOCATIONS(VERIFY JOINT PLACEMENT ABOVE AND BELOW FOR 1 MillS050 XO CLEARANCE) G516x74" (SEE NOTE•l4) 4-`4, 0 $_ _ ____ ---211. _s I _ - • - __ _ -CC- - 6. ANGLED WALLS TO BE 45 DEGREES TYPICAL UNLESS NOTED OTHERWISE 6x8 DF-4...) 6<B DF.L•2 6 B DE-L•2 5.5 Axe.DE-L•2 14' fti -41 1. DIMENSIONAL LUMBER TO BE HEM-FIR•2 TYPICAL UNLESS NOTED OTHERWISE P.T.Bx6 POST -6. p 1 (3 TYPICAL) �: �--1 8. UNLESS NOTED OTHERWISE,USE 4/8.HEADER IN 246 EXTERIOR WALLS ABOVE IT..EGK ` n OZ. DOORS W/(WINDOWS R-10(MIN,)INSULATION, BEAMS AND HORS.TO HAVE Q ivy,MINIMUM WEARING TYPICAL UNTO. BEAMS SHOWN ARE MINIMUM REQUIRED X) 21'- "x 10TO" �®, • 00+d 6 _ G� Q W 10'-5"BEDROOM"3 BEDROOM•2 O Mll OR BNI IFR. BITE t GRADE MAY BF INCREASED PER BUILDER'S DISCRETION. O x 11'-6" X Q 10-s"x 12'-l" 0'-O O •-' 9. VERIFY PLACEMENT OF 4x6 POST IN STUD WALL BELOW END.;OF GIRDER �� N p p `3 O W 'T tj TRUSS ABOVE W/ROOF FRAMING PLAN ON SHEET A4.3 NS y 4 a INN ' 404E- 10. PROVIDE 2xb BACKING IN ALL BATHROOM WALLS FOR TOWEL BARS, F- © 1�-Y �l} TOILET PAPER DISPENSERS,MEDICINE CABINETS,ETC.BETWEEN STUDS. ' 1 • 1 I p� '-Tys" T'-l" 1I COORDINATE W/BUILDER/011M ER FOR LOCATIONS : 60B0 FRENCH boll _ . 414 OW __ PAvrnr r� DOOR _ 3'-BK° 3'-1015Z. -V�f L V 4 IL INSTALL I/2"NIGH-DENSITY GYPSUM WALLBOARD AT GARAGE/HGUSE I -^�-'} MECO.VOID T2"6 PARS 'I' WALL AND GARAGE BEARING WALLS,1 5/8"TYPE-X GWB•GARAGE I 1\ �'- Q .m CEILING W/SCREWS•6"O.0 IN FIELD AND•EDGES(TYPICAL) I ❑ VAULTED .� CLOSET n .3 0 KITCHEN <4 ._ 1' .2'4. SHELF 4 ROD <" IT. INSTALL 20-MINUTE RATED DOOR ASSEMBLY LB/SELF-CLOSING HARDWARE CD 01.8= B•-0"x 12'-" ' DINING IT z 0 14'2"x If ID" p\ / SHELF t ROD 13. REQUIRED STAIR RAILINGS TO COMPLY WITH INC SECTION 317. PECK -<' 1 U ; _ '� ! �� RAILINGS TO COMPLY IF DECK is 30"OR MORE ABOVE FINISH GRAPE I CI C - (VERIFY ON-SITE). 'A I ISLAND WI - __ 'I WIULK-IN CLOSET I� I FLUSH BAR "xi ' ZQ I iN I Q 14. EGRESS WINDOW DIMENSIONS,CLEAR OPENING AND BILL HEIGHT TO 1 '-" 010 0.,p _ ` m COMPLY BY INC SECTION 310.1(VERIFY W/WINDOW SUPPLIER AND/OR . 3 lid l ry rr 5'215" B'-B" MANUFACTURER) 1 W -- 1 NI m-� • 0BATH - 1 W' 34!/a"NIGH 2x4' • - 1 STUD WAIL BELOW N I - 15. COMPLIANCE DATA FOR THE 2015 WASHINGTON STATE ENERGY CODE 1 INC --A" N�, CHAPTER 11 1S AS FOLLOWS, OE LE) FLOOR'PERIMETER, R-210lR-10 MlN.CABEADERS,TYP.) m a. 2-115 19'-Bi]' 4'-4" 3'-10' ` _ W _ �{ ..,_1„,_ m WALLS. • SLASLAB R-3B O _ L 3'-I15" J, 3'SIN" / BE-1" `e 14-2" J, 2'-B"1j, 3'-4.. W/SHOWER I 9 , U" f 9 [ m INT,SBMT.WALLS' R-21(IF APPLICABLE) X < Q 2LE," FLAT CEILING: R-49(R-38 IF INSUL,DEPTH IS MAINTAINED TO ' '_' X C CEILING RIDGE Q IT-. - r �+M \ OUTSIDE FACE OF EJXT,WALL) - A . 0. - ,4 i/t'1 5 VAULTED CEILING: R-3(5 =11.1 �[ :•: DOORS. 1b.200 MAX.(ONE DOOR UP TO 24 S.F.FJ(EmpT) , i3 _ im T� MBATHR O QG . 44,30 MAX. m Y 3'Sty"� 2'-8" 1 1, 3'-II" -6-5' O GLAZING. 463.0 S.F.•19.3`6 OF FLOOR AREA j F:. SKYLIGHTS. 2,500 MAX. N. \ -? O = m S FURNACEERTOTYPE: NATURALAPTEGAS FORCED AIR(VERIFY E/BUILDER) 4 VAULTED II !ii. lillp,, , vn 8 ANInN "' erREFER 70 20U°WSEG CHAPTER 4/IRO CHAPTER 11 FOR VERIFICATION LIVING R40i i 5'-0"SPA A OF THESE VALUES O Y 11'I"x 70'S" - ri TUB V.T.O:N kIS. MINIMUM REQUIREMENT FOR ATTIC VENTILATION IS AS FOLLOWS -= '�(CALCULATED•V300Lh OF ATTIC AREA): < \ 4 4 VAULTED 42"HIGH WALLIni _MN.REQ'P: 1,104,65 SO,IN. J �7 L q ENTRY Wl HpWp GAP3'-4" 1'-5' ` J S ACTUAL PROVIDED, Cl: 1,457,68 SQ.IN„Cl: 1,432.DB SO.IN. i6 ■ VENTED BLKG.: CI: 460,6E SD,IN.(61•9.425 80,IN,EACH) Q �ji m C2: 556.08 so,IN,(69•9,425 SO,IN.EACH) X 4kB 311 2" 0 .4 m -HALF WALL W/ o RIDGE VENT, Ck 9V.00 So.EN.to!L/F•12 b0.IN.PLF) -. „6 III DF-L•7 HDWD.CAP C2. 516.00 80.IN.en L/F s 12 EQ,IN,PLF) S' O 11... I tili� IfDec 4 050 105. MASTER BEDROOM CII • ry m 11, SEE ELECTRICAL PLAN ON SHEET ELL 1 FOR LOCATION 1 SIZE OF EXHAUST =. (TEMP.) 9/L S 21-I"x O-0" .J FANS. LOCATIONS AND SIZES REQUIRED TO COMPLY WI THE STATE OF , n , (TEMP 'n pL q WA9H4NGTON VENTILATION i AIR QUALITY CODE 1 INC MI50T,4 ARE AS 4x10 .F-L•2 qxb PF-L7(MIN.) y FOLLOWS. �rv2.5' 4xB OF-L•7 6080 FRENCH n)OR 4NH DFL•2 2.6' .J • ry l�f���H ---- _-_ --BELOW GIRDER 4] KITCHEN: 100 OEM RANGE HOOD �\ N ° = --- " ----- - , LAUNDRY: 5O OEM NO CFM RECOMMENDED) 5060 XO bxl0 7 5060 XO L ©� FRAMED TRUSS ABOVE(TYP.) p, �� REMP./ !TEMP.) •1 I WALL ABY. 16 T BATHROOMS, 50 GFM(80 GEM RECOMMENDED) Q C916 CS16 PORCH N9 NOTE. ALL FANS ON 2O-MINUTE TIMER TYPICAL. ELECTRICIAN TO m 4 /' CONC.S .B ILL DF-L'2 4x6 DF-L 1 7.2'rv, 14,VERIFY INSTALLATION OF GFCI OUTLETS IN ALL WET AREAS. VERIFY F / 4x6 MIN,) I�_ ICI I�i TYPES t LOCATIONS OF ALL ELECTRICAL FIXTURES W!OWNER AND/OR • DECK BF- 2 PORCH-�1 _ � 26 2650 BUILDER 9 10'-0"x 5'4' BFA ASV. 4.1 4x6 DFL•2 PIG, Q • I 18. INSULATE ALL ACCESS DOORSIHATCHEB TO CRAWLSPACFE/ATTIC& QN�-\ LRf1 l GBI6 BO60 XOX(SEE NOTE+I4) C816 TO THE EQUIVALENT RATING OF THE INSULATED FLOOR,WALL OR m n CEILING THROUGH WHICH THEY PENETRATE TEMP GLASS IN METAL P,T,bxb POST WR'PPED� A �/1'\ I ® -_ FRAM RAIIMG PER WLDR. PEF BLOR.WI 16"x 16 STEP-� Mk NB 19. MOUNT NWT ON PLATFORM IS"ABOVE GARAGE SLAB PER INC SECTION MASTIC-APPLIED"TONE GRA. x6(MIN. MI301.3. STRAP HWT TO WALL PER INC SECTION MI3OT.2, PROVIDE COLLTIN BELOW(2 TYP.) .F-L4.2 P.RCH OVERFLOW PAN/PIPING PER IRC CHAPTER 20, INSTALL T 1 P VALVE __ =EAM AB . •PIPE TO EXTERIOR TERMINATION. INSTALL A VACUUM RELIEF DEVICE PER MFR.SPECS,TO HUTT PER UPC 504.6 LOWMAN 71L611" 21'4.6" ]O, WH LAUNDRY VENTILATION PER NOTE•2l. WHOLE-HOUSE FAN LOCATED IN ]'-0"/ ]O'-0' J 5'-8y i� Il 5 5'�15n gill LAUNDRY ROOM(VERIFY W/E NOTE) 5'-0S5" / 6'-1115" 3-11lS" 21. DISAPPEARING STAIRS OR ATTIC ACCESS PANEL COVERED W/5/8" 27•-0" 8-O" 7)-0" 2•-0 MAIN FLOOR PLAN GUS AND PROVIDED W/WEATHER STRIPPING GASKET _ 54'-O" _ 22, FIREPLACE TO BE SUPPLIED WITH OUTSIDE COMBUSTION AIR DUCT AT - - COASTAL 1 & 2 LEAST 6 BQ,IN.AND PROVIDE READILY OPERABLE DAMPER. INSTALL GAS FIREPLACE W/CLEARANCES AND COMBUSTION AIR PER MAIN FLOOR PLANMANUFACTURERS RECOMMENDATIONS AND PER CODE 21. 12-I6"FIBERGLASS PACED GLIB BACKER AT TUB/SHOWER SURROUND 2,109 SQ,FT, JOB NO: LOWMAN UE81(3NEU: LG 74, PROVIDE MINIMUM OF 27"x 30"ATTIC ACCESS W/MINIMUM OF 30"MEAD TOTAL: 2,93E SQ.FT, SHAM. JR CLEARANCE, USE PLYWOOD DAMS TO CONTROL CEILING INSULATION REQUIRED GARAGE: 145 SQ.FT. SHOP: 231 SQ,FT, DATE 512 612 0 4 7 25. PROVIDE PARTICLE BOARD UNDERLAYMENT AT VINYL COORDINATE FRONT PORCH, 84 SQ.FT, SHEET NOTE. SEE"S SHEETS"FOR ENGINEER'S THICKNESS W/OTHER FLOOR FINISHES TO PROVIDE SMOOTH AND BACK PATIO: 215 SQ,FT, NOTES AND DETAIL FOR SHEAR WALLS. • d� LEVEL TRANSITIONS _ I WEANS,HEADERS,JACK/KING BTLLP 26. USE PRIMER/SEALER ON GLUES BEFORE AND AFTER TEXTURING GALLOUTB AND HOLD-DOWNS WA LANDED GENTRY HOMES AND COMMUNITIES 2'-0"/ 5O'-0" Y7p"/ 21-6" / 24'B" / - _`,/—\ _, DECK LINE ABOYE.(SEE FDN.PLAN) �-- _• _ - - Y 9 SHOP g o 23'-7'M.lo'-0" '1 4. GAN • IFURN, $ER IR II 1'vn5 _ _ _5x18 OR 6.15x1A 5 GLB_ _ _ _ „ii' P.T.ON&POST DELOW DEAM \ HWT ° ENP,OR ROCKET DM,INTO GONG.WALL(VERIFY W/BLDR) •• FAMILY/MEDIA ROOM 9 CONNECTORS TO BE HOT 76'-10"M.13'-0" IT DIPPED GALVANIZED OR EQ. - u PLATFORM IN"ABOVE SLAB(BEE NOTE'IN SHEET A3,1) No} q ., BEARING WALL 1`,17-\\(/7---- SEE NOTE•12 3 j is 4 SHEET A3.f q \ -gH„ 4x87 FL 4-C 15' / 4 Q 3'd'4" 2'1"/3'-4" 9'-11" 4'-8" LIIIS" i' GARAGE `r O \ 4xg�F-L�2 KB DF-L•2 .�, 71'-I"x 33'-10" y m c O Y m k s}iEI..F ROp Y (e r'\ 13 _ STOR. - V Z1 .fin 9 H CLOSET _-_-_ _-_BxIA OR 6-15x16,5GLB_-_-_-_- a1 n 6 �� 5 17"BYP•ASS c A' - - - a m z 4 @ te S, 4 lI4" 4'-II0 / 1 S L 1)�� BEDROOM F4 ENTRY - ° f_ f 13-1"x 13'-2" Q n d R 1-,16 L f -2 J}\ BATH -1], 4x8 u a�Y I AF-L'2 m O v1050 1 O Q 1 v 1 SEE NOTE*14 SA(TEMP,/ B/L t fr 4.6 DF-L•2(MIN,)----- m ! S-0"TLB w: 9HEEf A3.1 A-----, (fEMIP-) /'K 1 EW/SHOWER 9 Q ! 1 14x8 DF-L 1 l 4x0 OF-LW 2.5' Q 1 �� I Fw �' 5 I/Bx13 I/2 GLH T4F-Y4 DF/DF 3' \ \ " 5050 XO 5050 XA -\ \ \ © STH0I4 OR HOBS — 16-0"x a'-O"OVERHEAD GARAGE DOOR I \ \ \ •Q ,� (VERIFY IV/BLD2J PORCH © I 4 Q 4"000D BLAB __ _ n\Q V S `___1 _ STHol4 OR 11Du5 4 4 p 1- (VERIFY W/BLDR.) ( ul iv R` \ f DECK L NE ABOVE ©� � FLOOR LINE ABOVE J \ \ \ P.T,6x6 POST WRAPPED Q RAILED PER �� PER BLDR-L/IS."x IA!' BUILDDR MASTIC-APPLIED STONE COLUMN BELOW R TYP.) LOWMAN x 3'-0" / 5'-4lS" / 5'-OW / • x' / / 4'-0" / 4'-0" / 3'-0• / I6'-0" / 3'-0" / • 20'-0" / B'-0" - �'-0" / LOWER FLOOR PLAN COASTAL 1 & 2 LOWER FLOOR PLAN SCALE- I/A"•1'-0" 821 BGi.PT. JOB NO: LOWMAN DESIGNED: LG DRAWN: JR DATE: 5J11/2017 SHEET NOTE: SEE"S SHEETS°FOR ENGINEER'S NOTES A DETAIL FOR SHEAR WALLS, n . BEAMS,HEADERS,SAND JACK I KING GILD 1/••Il\ CALLOUS AND HOLD-DOWNS WA i 48 NORTH PLAT 8c PUD ti 4ti��iliiu �'.''illiN� $Sfifi.gg • Skagit Coup 0028 SECTION 22, TOWNSHIP 35 NORTH, RANGE 1 EAST, W.M. 61y2� .f "7 1h2 e4, 314:40AM CITY OF ANACORTES, WASHINGTON =°• , EASEMENT NOTE P31583 LOT 1 SHORT PLAT ANA-98-002 I LOT/3 P31682 \ �`'b0\ 'k. ,"' AF#9806220012 I "A ;,°, ,, 14 t0 PSE EASEMENTS UNDER , CURVE TABLE. . ,,A ,, AUDITORS FILE NUMBERS / 0 N 88°39'46' W 316.28' '`. `°!h_ 201607050142 & 3523' • cw' "r °'` _ 75d2' •_ _ 75,59' ., .' 201612060089, �� / yP �' 20' SEiEACKr �^ - `Cz1 133.34`_ NUMBER RADIUS ARC LENGTH DELTA ANGLE , 'i�NUMBEK .RADT Sti +�RC LENGTH DELTA ANGLE ti0 c, h` ` -v i0' SETBACK f • Cl 670,00' 83.10' 7'06'23',. .- +, C 7 80,00`=;, p 30.43' 21'47'32' �v.Z. 0 , . 0 Pd-/0' PRIVATE - 20' SETBACK I "fin . ,4'' ' ' k''' / _ 4 C2 67,50' 165,72' 140'40', �c ,„ 9,QL,Q 5,15' 3°46'S4' $. e, c?e'•, --��,.. SD ESMT N 3- 3,_ 10 C3- -515D' 89.13' 884 41z._\ . C 6 ar •Fy .52.0_6' 33.;1J$'2EL' v" C,' _ 90 SF C4 57,50' 90,D9' 89.4611'�' "q` 3 DO' 29,15' l8`33''15 i .�' /Zo ;,ro7861 SF od ,,_ ^y,,r O� 5 p f 8007 SF y p408� o I C5 67,50' 64,77'tiF^ '58 o>= 647,50' 39,20' 3'28'07' P o ��/ �r- N B9'39'46' W C6 670.00' 83,10'N. ' ,,,7'6-"�1 ,'`• 'N,,,.i r " �' Lc / / ra`'r I!406I r.' • 1v „ C3 � 20,00 10,06' 28'48 20 \<\,-, ,./-iu PRIVATE Tre.'.P. 10' PUBLIC 112.28' I C7 687.50' l„s°,057' t. lc,. l•"A.y =rr, ?,33 20,00' 22,64 64'50'56' yP rP\ SS ESMT `I e - yUTILITY ESMT 5 C8 687,50' 5$ a!3` `n' C34 20,00' 26,36' 75'31'21' �, '6 �k���l r c - �/ 1 C}5Y Cl`6`Q I C9 50,00.', 12 :l6% l'It °d'4010''.t,,,.,3.,t?T C35 20,00' 6.33' 18'07'56' R\6 P � lf� s 7755 SF/ i 809E SF C10 4010`"y 62,0I ., ' , 88I48'4..' C36 647.50' 39,01' 3'27'06' p,-• a"••'°\ cfs\ 7>2 I1404.1 &j�G,4 K\- C11 40.05 9' 62,67`ryr,. 3,.89.4'''111' C37 522.50' 69,86' 7'39'39' L� / ra- ,P 42\ $r' /% G\Q' ci}` [14141 C12 ,r v_ 4 aF \A \ °?y, ..0,00 , 18.11' 1, 20 4508' C39 522.5w 20,00' 2•11'35' ryes ` � 4F G4 4 /.r, a,\\a- /os/� OF Cz \L2 N 87'47'58 w Cv. 5 130' "' 29,87' 34'13'48' C39 522,50` 125,40' 13'00'15' `tip nti 6 r 2`' c. \'' % uss 'r \ ir`? \?S . co \ �\ 86.60' ,"14s"t °"' 0,00' , 3"t � 2`� 43 ,4, F fi\ °°1 I a4 22'24 53" C40 552,50' BD,82 8'22'S4' e-°� aSaS:.:J°v'..� V� N. 55b. p2 s \ i �rr� 34 22.50' 1' \ L3 Io Cl 90,00' :F, "� Q ,.{ 19'06'00' C41 552,50' 44.58' 4.37'21' SiP� P�, * 10/ Fr9t, ap �fi �� o° ROW 17.5•%�/l SETBACK T \ -\ 6 y ' 1E1 90.0w 3;, 65.57' 41'44'31' C42 670,00' 34,52' 2.57'07' A\ r,:'\� / •',- \'rr- 9. C1R0 ;' 51 \ 1 1 768E SF �.,:„ ,.:: 7' 9o,a� !F 30,00` 19'0600' LINE TABLE I v 22 �s> od / 3 f 1 1 '-''ro 11'4. ' =.9 ' , 30.16' 19'12'00' ,A�' 411 a� <" ti .' / 8155 SF1 9..;,,",. 9a009';' 30.02' 19°06'36' ti\� 2g g �d- 7558 SF 1 „ti, INN Liblib , �I ,,,, NUMBER BEARING DISTANCE +b5'5a2S�A ';' 116101 �s�� 3�P././ r q� 14171 z2.so'�! jf � L 0 80f0' 39,50' 28'17'27' Ll N 29.29'13' E 21,20' r <'r O,,Fr / - z 1;17.50 ROW N 87.4T5' C21 80.00' 33.75' 24'10'07' / NO LEGAL FOUND 0. 1. 21 e., "S A-• \ / S 88.59'17' E I 100,00`' r ' L2 N 29'29'13' E 17,30' 1 8129 SFr 2A� .R.:...''';,,. s' ` � 113.37` I VFW I,,,`;;,�=,;:;,„,. ;C 80,00 34,21 24'30 00' L3 N 34.4617' E 34,11' �1 it ow C6 - .� 1a' PRIVATE I .,,or °, -5 - F w� .:. ir't' - 3 80,00' 16,55' 11'51'16' L4 N 60.33'11' W 20,02' (16081 05° 7.50' ::' i �T I r'` '' L5 N 39°30'43' E 22,27' © + I ,* hi--!le rYFrk a ^. �'C24 80,00' 23J4' 1T00'00' i . , SS g SO ESMT IC' PUBLIC--/ RC ,-'i i ti I o ' I 7500 t C25 80,00 30,02' 21'30'00' L6 N 39'30'43' E 22,22' UTILITY SMT / �a2 i�TRACT CZ Ni1 29 1^ I▪F,° �1�$I ^ C26 80,00' 41.16' 29'28'39' L7 S 88'59'I7' E 40,64' 6'7i , /� r �, 655E SF i 7936 SF N,=r ,.4 L8 S 54°30'43' W 16,82' a 1121)•° 1'I j N' C5 °�/ S 88'59'17' E S 88 5917' E I v 'T` N.0!? %'5o NOTES P56562 I hf % 116,27 • f 113.37'.- • ,6 1Q { o 1.r- SET CONCRETE MON WITH BRASS CAP IN CASE WITH COVER. 20 Ososl ( 1 I m I v • 10' PUBLIC I I I N 8 2. SET RE-BAR AND RED CAP PLS. #27817. 7500 SF I UTILITY 23 ' I a;x I ,0 3.0 FOUND EXISTING REBAR AND CAP MARKED PLS #9569 OR AS NOTED. 10' PRIVATE' MI ESMT O Q7 SF o I 28 - N Q , ; 7500 SF , VISITED 1-4-2017. SS B SD.ESMT v,I © I n .;J1 '34 SF I y_ ' r 4. EQUIPMENT USED: CARLSON CR2 2" TOTAL STATION. H ^ I 11605] li,wir r �^ 114201 5. ALL CONCRETE MONUMENTS WERE VISITED ON 2-1-2017. e''r, I w I I w ,._ fie, x z, I o 6- ERROR OF CLOSURE MEETS WASHINGTON STATE SURVEY STANDARDS. 71p6., 0, _ • I S 88'59'17' E I S &�•5 r.• E 5rc,;� 1 ]�I rt1 N 87'4758' 1J 7. SURVEY METHOD: STANDARD FIELD TRAVERSE. y; f I I ' eel T 8. BASIS OF BEARINGS: Record of Survey, AF 200104030063. ^ 19 I n 117.78' 1 3 100,00' I Y I I� '+s o cv 9.OADDRESSES SHOWN ON PLAT. o" A * ▪10' PUBLIC $ ° 7500 SFoI m 24 ,..,,,,,---,,,..1„,.....,• 1kI "-' UTILITY ESMT 10. SEE SHEET 3, PUD AND PLAT CONDITIONS #2 FOR BUILDING SETBACK p y 0; ,rF. .S. I"'.,,.o 1 ^ REQUIREMENTS4' 2 818 '-- S•.r,., .;,,a n I 7500 SFI �u ti e, td = f r,..,,15 J I ^ I h 5021 C3 ., o ri2O 0-1✓ 22.50'117.5 ..S 88459'f?' E � n; , 8B'59'17' E I OFFSET PROPERTY CORNER NOTES rn a' ii••.. i. N 8T4T58' W e d- ROW ROW 46,0S 15` .e 113.37' E �O In m f--. v. Ca 3 2:,... 100A0' 1Q REBAR & CAP SET 1.Q0' S 32'20'58" W OF �` o 18 , �'.� x� _ r s«r6 N ']6 I llm m r� I� TRUE CORNER DUE TO FENCE. �781 SF 1' q'. °'"• I •5 S'F� c lU ® REBAR & CAP SET 1.DO' s rzo'l4" w OF o g 8, f1 I 8175 SF I m Ir^ TRUE CORNER DUE TO FENCE. f16021 I � ^ n7518SFm . I - I "' I 1505I n IA ® REBAR & CAP SET FENS' . 1'0'43' E OF „ r ,vunrrnnuwurnuuu,nnnn, �'e ,* .� � � 2r' e K- z I �r of� I15041 � r' TRUE CORNER DUE TO FENCE. yam', � r\ fi„»r , xs �;�` DV SETBACK 6\ U! ® REBAR & CAP SET 0-50' N 13'21.22' W OF e 1 N 88'S9'/314,! r NER e .: 74,35' 74,E / TRUE CORNER DUE TO FENCE. 'A,--._-RIB 92,14: C l's� '\I' C3j `� N 87'47`58' W ® REAR & CAP SET 1.00' S 62'27'00" E OF °F Wes%� A!1 END REBAR &� PRIVATE 20' SPl, i#S. -f t. LATITUDE CIRCLE �/ 1 ic4. 109,56' I TRUE CORNER DUE TO FENCE. ( 8 '' -`'-/6} -i'' 1 rvigi CAP HERRIGSTAD�Ir„ �_, AF7 4 - pti/� �.� fi• ny \ N BB'S9'TT V 148.54' / 11 4 ® REBAR & CAP SET 1.00' N 58'29'41" E OF './: w: el ..7 Alt' �? -. F ', r •7 L. y �o I - TRUE CORNER DUE TO FENCE. _ ' .�'T -,t, .. �. .., ¢ 39,18`* 80,00' \29.3G-'•C2 G;� s�as� 8054 SF WREBAR & CAP SET 1.00' S 2'12'02" W OF _ n Q?If' Lrm ;yam s2, L5�-- --L c'e- o• ^ I CORNER DUE TO WATER METER BOX- _ I'-"` E1 cp :5 0' SETBACKl0' PUBLIC \ r- 115061''- tac. 1] rn 15 urulrY ESMT 13s�?6� \ t 4i � a 16 w 1A >66_ Ff\ N 8T4T58' W ''murvarrruu¢nnrrrrur,ruurrrurrrrruPS 7- ;,, 19 441., - 1 r.:( `, '''!„ 4 8092 SF N 7930 SF 4 8000 SF 7617 SF #`< � 121 OWNER/DEVELOPER LAND SURVEYOR„' ,,;.� .w. Z115181 0. ,., 115161 - 11514] [15121 NIIW G1dAPIIIC SCALE 48 NORTH ON FIDALGO ISLAND LLC DALE HERRIESTAD PLS _ L 8849 SF 25 D 25 50 lOG(s 41„ xa.4 30' SETBACK - n,l I m .. „ PO BOX 319 4320 WHISTLE LAKE ROAD ` _ ,„H - -'r am ® ( IN FEET ) ANACORTES, WA 98221 ANACORTES, WA 98221 ,,lk. -t• ": ,,t . 75.00' 89.08' 0 80.00' �I 10' VA ESMTiI inch =50 (t• L80.00' 76,06' - f03,98' 34.0' TpOB \ °▪,, 1/16TH S 88°5,717' E 504,12' / ' SHEET 2 OF 3 ,N '1�.1 + ' CORNER *NO STRUCTURE ON -1% 1 /� LOT 15 SHALL BE CLEARIDGE DIV.II rk +$ - _,- P82597 P82596 TALLER THAN 25' AF#8204220013 / PUD-2 015-0 0 0 3 PW #16-0 0 5-D EV FROM THE NE P82593 I I CORNER. P82595 P82594 / OWN BY: DKH HERRIGSTAD ENGINEERING & SURVEYING SCALE: NOTED DATE: APRIL 2017 4320 Whistle Lake Road, Anacortes, WA 98221 (360) 299-8804 JOB 2015-53 48 NORTH PLAT & PUD IIIlli,; illlI' ii�1l[1I�I 70 £12 SECTION 22, TOWNSHIP 35 NORTH, RANGE 1 EAST, W.M. 8kegI1C un aA[i -;a' S16fi.00 o1 j° age "e 1 of 311:40AM CITY OF ANACORTES, WASHINGTON '•�k `` `'t PUD AND PLAT CONDITIONS qc-LEGAL DESCRIPTION JA- . 4'.q. ` '''''n%Na, 48 NORTH PLAT & PUD UTILITY and ACCESS EASEMENTS & DEDICATIONS ,4; _ ",: r,.. ;i,,, PUD-2015-0003 1. An easement is hereby reserved for and conveyed to the CITY OF ANACORTES, That portion of the South 1/2ofeedie,eldetheast 1'rte,.Ofeithe S&et`, t efie of Section 22, Township PUGET SOUND ENERGY INC.(A_F. NO. 201607050142 & 201612060089), FRONTIER 35 North, Range I East, W.MAiheAutheateely of 'tee `BURROWS BA'ROAD", EXCEPT the"COPPER All parcels within the subdivision are subject to the "Findings of Fact and COMMUNICATIONS TELEPHONE COMPANY, CASCADE NATURAL GAS COMPANY, AND MINE ROAD`along the East4tre telereof. WY 4CEPT theh.fall ing described tracts: Conclusion of Law" as adopted by the Anacortes City Council on the 21st COMCAST CABLE TELEVISION COMPANY and their respective successors and ,r �: • '4, ,e. day of March, 2018. The following Conditions were required to be assigns under and upon the front ten (10) feet, or as shown on the peat, of a.) Beginning at teeSobh1east`fdemor f°`Cee Souttr;:n1 i2 of the Northeast 1/4 of the Southeast 1/4 identified on the face of the Plot. front boundary lines all lots, tracts and spaces within the plot lying parallel with of said Section; s e ''''te a ee rhr` Fc arrd-adjoining all�ublic stieet(sr os shown on the peat,-in which to construct, thence North 88'50,46� yllang ".,ok},,, f,ne, said South 16 of the Northeast 1/4 of the 1. (FF #10) The lots in this subdivision are subject to applicable water, operate, maintain, repair, replace and enlarge underground pipes, conduits, SoutheeeNe, 30.Oi le¢Y',1.ohis We'One of.de 'COPPER MINE ROAD'; sewer, and stormwater general facility and hookup fees and transportation, cabins and wires all necessary or convenient underground or ground mounted thee ec.Ll inu6,NertF,86 eie"..4est ttge feet fire, and park impact fees. These fees are payable at levels in effect at appurtenances thereto for the purpose of serving this subdivision and other eleencelNorlli.r 11"2R?ease Ea,34`i_et to the North line of the Southwest 1/4 of the Northeast the time of building permit issuance and may differ from those fee levels property with electric, gas, telephone and other utility service, together with the re n rg 1 e1 of'Etre tS,^easf ./4 µ one true point-of beginning of this description, sold point being currently in effect; sewer and water latecomer charges may be payable. right to enter upon the streets, lots, tracts and spaces at all times for the a heSeorther gt c�{neP,Tf thattcertain tract conveyed to the Port of Anacortes, a municipal purposes herein stated. r.. 2. (FF #11) ZONING INFORMATION: eks l.'ou,on, bi deee retegtef July 22, 1968, under Auditor's File No. 716164; Underlying Zone: Residential District (R2) 2. A 10 foot private storm drainage easement across the North boundary of""s thetle fhvit sdki trllb,point of beginning run South 211'29'West along the West line of said Port Zone's Minimum Lot Size: 7,500 Square Feet Lots 2, 3 and Tract B as shown on the plat is hereby reserved for and of Afitfcort tract';_ elistance of 15 feet; Gross Acreage: 7.48 Acres (included 1/2 abutting ROW) conveyed to Lots 2, 3 & 4 for storm drainage to service lots 2, 3 Sceeeeele e,, ,,, thence'Ves .porolie! with the North line of said Southwest 1/4 of the Northeast 1/4 of the Net Acreage: 7.20 Acres which to construct, operate, maintain, repair, replace and enlarge under gene " '40 Southepet $//4 to the Easterly line of the 'BURROWS BAY ROAD'; Zone's Maximum Density: 4 Dwelling Units (DU) per Gross Acre pipes, thereto for the purpose of serving the lots herein. The m9'hteeeence•ill .l.t`fie "etteete. .l'herly along said Easterly line to the North line of said Southwest 1/4 of the Northeast the improvements to the easement will be the responsibility of ared W,hared by t;. 1 4,ofP'fhe Southeast 1 4; DensityCalculation: 4 DU 7.48 Acres = 29.92, rounded to 30 DU / the benefiting lots. l ` tttihce East alongsaid North line to the true point of beginning. Proposed Lots: 30 Lots F1 Community Park p 9 g e e i'r, 3. A 10 foot private sanitary sewer easement acrose,etYW arthw( t ts?gundary o b.) Beginning at the Southeast corner of the South 1 2 of the Northeast 1 4 of the Southeast 1 4 SETBACKS; -, 9 9 / / / Front Yard: Lot 1 and Tract B as shown on the plat is hereby:ieser n fo �nr2 cofW yed. thence North 88'59'46' West along the South foe of said subdivision 30.00 feet to the West line of Per lots 3- 17 only, Me front seelevek Le lO feet for the rvsidevcv ' 20 to Lot 2 for sanitary sewer pipes to service lot 2�rn,.BVFiich`'k c tr'lidr<#, ,s• the "COPPER MINE ROAD', and the true point of beginning; re.et for g4rogCs operate, maintain, repair, replace and enlarge un er ound pip' fe ¢ti the ps thence continue North 88'59'46"West 781.88 feet; NI other 'nit must meet the 20 foot front yard setback for the R2 Zone. of serving lot 2. The maintenance of the lmpro ereents to the• mgment will be the responsibility of lot 2. x thence North 211'29" East 669.34 feet to the North line of said subdivision; r - 1.; 1.r : thence South 88'40'23' East along the North line of sold subdivision 760.00 feet to the West line of Rear Yard: "f^ f For Iota 3-97 only. the rear setback is lnafw4A8d from 20 letp W 0 4. A 10 foot private sanitary sew .._eeerm'/Aeraii ge-eeFsemer4• dross the the "COPPER MINE ROAD'; feet West boundary of Lots 27, 28.se a?sshcieen Age thly fgrat,n, 'hereby thence South 018'59' West along said road o distance of 664.96 feet to the true point of Air other lots must meet the 20 foot rear setback for the R2 Zone. reserved for and conveyed to to B 27, 28e 2.t:;&.3 -f ,.sunitury sewer & beginning. yardstorm drainage pipes to service �t�6„ 27, 24 4 & 30 in which to Side Yard: construct, operate, maintain, repair replace andlierCarge underground pipes for Situate in the City of Anacertes, County of Skagit, State of Washington. All lots shall meet the R2 side yard setback requirements for the R2 the purpose of serving the lots hef$en.'°;,The mgant. ante of the improvements Zone. to the easement will be the responsi`jlit 1'of d, erred by the benefiting lots. ''' ,.,e 3. (FF #15) A homeowner's association shall be established and be 5. A 10 foe w i ate sanitary sewer & "g orpv drainage easement across the West bourvcb y 4.t.Lots 18, 19, 20, 21 &'1.irrect A as shown on the plot is responsible for the maintenance of the bioretention swale (Tract A), hereby reseriN fer and conveyed to Lots 17, 18, 19, 20 & 21 for sanitary IMPERVIOUS COVERAGE LIMITATIONS landscaping buffer (Tract B) and community park (Tract C), sewer & storeedni _age pipesservicelots 17, 18, 19, 20 & 21 in to #a ?. n w Based on the stoma water design for the plat the total impervious coverage for each lot is 48%. ceelsR�wct, operaipk r4Yqintainr,p�p�r, replace and enlarge underground pipes for 4. (FF #19) Pursuant to AMC 16.50,120 (D), the applicant shall record e urn of seekingtfhrw"'toe0erein. The maintenance of the improvements notice with the Skagit County Auditor's Office which provides a public {^t o„Fea##raent wftfkktrbe°'the;mesponsibility of and shared by the benefiting lots. record of any approved tree preservation plan and conservation areas; the e. e �. -`^: sr '-' application of this title to the property; and that limitations on actions 0k: 6. •A`e"2^'peat &" ;Q fdtft public water main easement on and across Lots 12 & or affecting the property may exist. See recording number on sheet ff; ''seen, 13rebelet8wrlrrireth 1°plat is hereby reserved for and conveyed to the City of ee. Anoores.,ir'f whit'`to construct, operate, maintain, repair, replace and enlarge 5. (FF #20) This Subdivision is subject to the Tree Preserve{' l"figtfi ee ee undeygrol nd pipes for the purpose of serving this subdivision and other property Dated August 12, 2015. Retained Trees shall be maintalne =Ee .the,late' ' 4 "with oar service, together with the right to enter upon the streets, lots, tracts owners, unless approved for removal by the City of AnacoOces-' '' 4r. &Id s ac;Z�s at all times for the purposes herein stated. 1�r i� A., ya 1r^ 6. (FF #21) The maximum permitted height for L 1,15 eteell}ybe restricts'I; ;_e'An access and utility easement on and across Lot 17 is described in to twenty-five (25) feet from the high point of tt e Iosoper / i f existing I, Abditor's File No. 201702240096. grade, r,;. 'w v, a;, ' ' 44L, !p ,t',' 8, Tract A is hereby dedicated to the City of Anacortes as a storm drainage e_:s ,:c. 7. (FF Modifications) Lot coverage is r d iflpd'from 2'tein.l• a ,go"" conveyance and water quality treatment facility. Tract A will be maintained by ' maximum of thirty-fivert'°°' "' the 4-8 North Home Owners Association and the City of Anacortes. The 48 (35) percent:_tL' eke-Maximum of .,firk.,seven and North Home Owners Association maintenance and upkeep requirements are one half (37.5%). p k`+t ,,fir _;c' 4�- ''r", identified in the recorded Declaration of Covenants, Conditions, & Restrictions. cer;r' .7P r;_t,`�iA`Iame3� ;.4" See Note #1 on sheet 1 of 3. All other maintenance and upkeep is the s responsibility of the City of Anacortes. '' 'Leea, k #'S.rn 9. Tract B is hereby dedicated to the 48 North Homeowners Association for the ce ,xn�n�3r,,. es y�� purposes of landscaping and landscape maintenance. �.y' ", ;�, T0. Tract C is hereby dedicated to the 48 North Homeowners Association for the t. err' ._�'""'V`"��,, -e .'"'� �¢.r purposes of a Community Park to be maintained by the Homeowners Association. „»„ „ ,umrn»rn„u,ro »,,,,_ rdi' is = 1-4ERl� � •:` ?1_ All common retaining walls will be the responsibility and owned by the 4B NC. was,;-..rP ':r Ail North Homeowners Association. A 5 foot wide easement across Tract C end Lot -'i-' '� _ f -`a'�`y., 'tit '',r, 19 L �} b;r __ ? 30 for the length of the wall as shown on the plot map is granted to the i�!/ h JI �- Homeowners Association for upkeep as identified in the recorded Declaration of � ' ;,an,,skJi f,t^ ,� Covenants, Conditions, & Restrictions. See Note #1 on sheet 1 of 3. _ f4 7�(7 ,.'r - �F�6`.:,w=' OWNER/DEVELOPER DEVELOPER LAND SURVEYOR '.......6' - R LY 1h,::,. _ .,:}.3 g , .t 48 NORTH ON FIDALGO ISLAND LLC DALE HERRIGSTAD PLS - °.•,. `: 2 hfrrrrrrrlruanc rrrlrrarmarnarlrtuo`, .; pr "-e,r, PO BOX 319 4320 WHISTLE LAKE ROAD n N•,. S� ANACORTES, WA 98221 ANACORTES, WA 98221 ,�.. �t r ,>n ;a � SHEET 3 OF 3 F to '! . PUD-2015-0003 PW #16-005-DEV DWN BY: DKH HERRIGSTAI) ENGINEERING & SURVEYING SCALE NOTED DATE: APRIL 2017 4320 Whistle Lake Rood, Anacortes, WA 98221 (360) 299-8804 JOB 2015-53