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HomeMy WebLinkAboutBLD2007-00561 • • CERTIFICATE OF OCCUPANCY Jefferson County Department of Community Development 621 Sheridan Street Port Townsend, WA 98368 (360)379-4450 FAX (360)379-4451 (800) 831-2678 PERMIT #: BLD07-00561 02/5/2008 Issue Date: SITE ADDRESS: 4104 DOSEWALLIPS RD al Date: 6/25/2009 BRINNON, 98320 APPLICANT: FORREST G TOWNE PHONE: 360-796-4708 SHIRLEY L TOWNE PO BOX 694 BRINNON WA 98320 Block: Lot: TX 25 SUBDIVISION: PARCEL NUMBER: 602292014 Section: 29 Township: 26 N Range: 02 W PROJECT DESCRIPTION: NEW SFR ALSO U/G 1000 GAL PROPANE TANK THE PROJECT LISTED ABOVE COMPLIES WITH THE REQUIREMENT OF THE BUILDING CODE 2006 EDITION. OCCUPANCY GROUP: R-3 TYPE OF CONSTRUCTION: 5N SPRINKLER SYSTEM yes I) THE PROJECT PASSED ITS FINAL INSPECTION AND RECEIVED FINAL SIGN OFF ON 6/25/2009 I:\F_BLD_Occupancy.rpt 10/29/19 _.____________e___________________________ i Inie.ferson County Building Division Permit Number: BLD0700561 DL i WING PERMIT INSPECTION APPROVALS app Applicant: TOWNE licable Code: 2006 International Building Codes To schedule inspections, call (360)379-4455 no later than 7:C10 AM the day of the inspection. Requests received after 7:00 AM will not be scheduled for that day's inspections. ELECTRICAL PERMITS are issued by the Washington State Department of Labor& Industries. The electrical permit must be signed off by the State Inspector prior to the County's Framing Inspection Inspection Item Date — Approval Signature Notes Setbacks Erosion Controlinummillilliffillill WA SEE CONDITION#1. /Q 16 OK Foundation Footing - �O *►W^T R nr N BY N I MI 4 g DS letter from NTI required Footing Drains / �r 4: /'ff b• • A Mta/ -ro . , 0, i 0PMEI Y u Foundation Stem Wallnil 4 _ G$ etter fro NTI required. SEE CO��I ION 2. Underground Plumbing far �•T� O , MIIMEMIll Gnu o�u 7/� Under Floor Framing 6, , o6; Mil /A. ' 0 �t Straps(hold downs) _ S,u: , , t, 4D 34 D$ /A1 Ext. Shear Wall Nailing /6/36/0 Mirall E,ucsoreks 1•arhOn /0134/40.6 / • /1 r}�va z t� Rough-in Plumbing /4/35 o$ Framing �u / d9�' Z // d9 J- Blocking letter from Elcipse Eng. required "omit_ �D ECD /d 3D�oE 2 9 0.3 FORM Airseal rffillni1111 6/ Insulation:Walls Insulation: Floors "f Z"o C�3 Insulation: Ceiling 1..L 0G L VANL,er, - -g-. A y Int. Shear Wall Nailing . 7 o Wallboard Nailing zzfv9Min Gas Line: Interior // 3 Gas Line:ExteriorIMEI rj L_ tih► Propane Tank / o - ,, i 8 OB o• . Heat/Chimney Clearance N Q Drywell/Alt Drainage I NGINEE,RED STORMWATE• PLAN :Y NTI. Address Posted -' ,e FINAL INSPECTION 0- Ili FINAL INSPECTION MUST BE APPROVED PRIOR TO BUILDING BEING OCCUPI THIS PERMIT IS VALID FOR ONE YEAR ED tILDING PERMIT APPLICAT N MLA07-00599 Review Type: I Jefferson County Department of Community Development 621 Sheridan Street Port Townsend, WA 98368 PERMIT #: BLD07-00561 Received Date: 10/26/2007 SITE ADDRESS: 4104 DOSEWALLIPS RD BRINNON, 98320 OWNER: FORREST G TOWNE PHONE: 360-796-4708 SHIRLEY L TOWNE PO BOX 694 BRINNON WA 98320 SUBDIVISION: Block: Lot: T25+ PARCEL NUMBER: 602292014 Section: 29 Township: 26 N Range: 02 W CONTRACTOR: OWNER/BUILDER PHONE: REPRESENTATIVE: PHONE: PROJECT DESCRIPTIOr NEW SFR ALSO U/G 1000 GAL PROPANE TANK TYPE OF WORK RES SQUARE FOOTAGE: TYPE OF IMP NEW MAIN: 1,929 VALUATION 375,000.00 ADD'L: HEAT TYPE: PRO CODE EDITION: 2006 HEAT BASE: HEAT TYPE: RAD OCCUPANCY: R-3 UNHEATED: # OF STORIES: OCCUPANCY: OTHER: CONST TYPE: 5N GARAGE: SHORELINE: CONST TYPE: DECK: 954 SETBACK: BANK HEIGHT: SEWAGE DISPOSAL: CON WATER SYSTEM: PWELL BEDROOMS: BATHROOMS: Exist: Exist: Prop: 2 Prop: 2 Total: 2 Total: 2 Routing Date: J I ID aq/C 1_I_& Type Amount Paid By: Date: Receipt: Approved/Date Permit $2,533.75 KAS 10/26/07 93395 APPROVE() Plan Check $1,646.94 KAS 10/26/07 93395 State Building Code $4.50 KAS 10/26/07 93395 FEB 5 2OQ$ Potable Water Application $58.00 KAS 10/26/07 93395 Total: $4,243.19 Jefferson County Planning & Building Department, • • CONDITIONS for Building Permit# :BLD07-00561 1.) HYDROSEEDING EXPOSED SOILS SHALL BE IMPLEMENTED PRIOR TO APRIL 30, 2008 OR NO FURTHER BUILDING INSPECTIONS WILL BE CONDUCTED. THE FOLLOWING BMP'S ALSO NEED TO BE IMPLEMENTED: a. INSLOPING THE UPPER DRIVEWAY TO THE DITCH: b. PLACING ROCK CHECK DAMS AT 50 FOOT INTERVALS IN THE UPPER DRIVEWAY DITCH; AND c. CONNECTING THE DOWNSPOUTS FROM THE RESIDENCE AND GARAGE TO THE DETENTION POND. 2.) THE CONSTRUCTION PLANS CALL FOR ALL PIERS NEAR THE SLOPE TO BE FOUNDED ON KEYED BEDROCK. THE PLANS ALSO REQUIRE THAT THE PIER INSTALLATION BE INSPECTED BY THE GEOTECHNICAL - FOUNDATION ENGINEER. ONCE CONSTRUCTION OF THE FOUNDATION IS COMPLETED, STEVE LUXTON MSc. PE, WILL PROIVDE AN INSPECTION CERTIFICATE TO JEFFERSON COUNTY BUILDING DEPARTMENT CERTIFYING THAT THE FOUNDTION IS CONSTRUCTED AS SPECIFIED AND TO HIS SATISFACTION. 3.) HOUSE SITE ROCK-FALL BARRIER: PRIOR TO THE CONSTRUCTION OF THE HOUSE, SEARCH THE SLOPE ABOVE THE SITE FOR LOOSE ROCKS AND ROLL THEM OUT OR SHOOT THEM WITH EXPLOSIVES. CONSTRUCT AN "ECOLOGY BLOCK" BARRIER THAT IS AT LEAST TWO COURSES HIGH (5 FEET) THAT PROTECTS THE ENTIRE LENGTH OF THE HOUSE. SITE THE BARRIER AS CLOSE TO THE HOUSE AS PRACTICAL SO THAT THE SPACE AVAILABLE TO CAPTURE ROCKS IS AS WIDE AS POSSIBLE. AN AN ALTERNATIVE TO ECOLOGY BLOCKS, GABION BASKETS MAY BE PLACED TO A HEIGHT OF 5 FEET AND LOCAL ROCKS FROM THE EXCAVATION MAY BE USED TO FILL THE BASKETS. 4.) EQUIPMENT STORAGE/SHOP BUILDING CONDITIONS: ALL MATERIALS PLACES IN THE FILL SHOULD BE COMPACTED IN LIFTS OF NOT MORE THAN ONE FOOT. SLOPE CUTS AND FILLS SHOULD BE COMPACTED AS MIJCH AS POSSIBLE. THE SLOPE ABOVE THE SHOP SHOULD NOT BE STEEPENED TO MORE THAN APPROXIMATELY 1 FOOT VERTICAL TO 1.5 FEET HORIZONTAL TO PREVENT SLOUGHING OF THE GRANULAR FILL FORMING THAT SLOPE. PROVIDE 10 FEET CLEAR BETWEEN THE TOE OF THE SLOPE AND THE ABACK WALL OF THE BUILDING TO PROVIDE SOME PROTECTION FROM ROCK FALLS. ENSURE THAT NO PART OF THE BUILDING FOUNDATION LIES ON FILL MATERIALS. 5.) PRIOR TO FINAL OCCUPANCY VERIFICATION THAT ARTESIAN FLOW FROM WELL IS ADEQUATELY CONTAINED PER WAC 173-160. YVAD b J 'pUY--0 OC.- 5 -1-ciCIy 6.) A Geotechnical Report dated Ma. 2007 prepared by NTI Engineering and *eying was submitted in conjunction with this application. The report addressed the stability of the geologic hazard area and made specific conditions relating to the construction of the house and storage/shop building. The report states that the location of the proposed buildings is sound and little affected by weathering, hence the site has little or not potential for deep-seated sliding. 7.) PRIOR TO FINAL BUILDING OCCUPANCY, PROPONENT SHALL SUBMIT A WRITTEN LETTER FROM THE GEOLOGIST WHO PREPARED THE GEOTECHNICAL REPORT IsjiY DATED MAY 16, 2007 AND THE ADDENDUM DATED OCTOBER 26, 2007 STATING V HAT THE STRUCTURE AND/OR FACILITIES HAVE BEEN CONSTRUCTED IN ('� NFORMANCE WITH THE REQUIREMENTS OF THE "GEOTECHNICAL REPORT." ockr THE LETTER SHALL BE STAMPED BY THE LICENSED GEOLOGIST/ENGINEER. ®8.) Landslide Hazard Areas and their associated buffers shall remain naturally vegetated. Should buffer disturbance occur during construction, the Unified Development Code (UDC)Administrator shall require replanting with native vegetation. No alterations shall be made to the Landslide Hazard Area or its associated buffer without prior authorization by the UDC Administrator. 9.) The applicant shall permanently separate the boundary of the Landslide Hazard Area Buffer from the remainder of the subject property through installing logs, trees, a hedge row, or any other prominent physical marking approved by the UDC Administrator. 10.) Critical Aquifer Recharge Areas may require special protection measures to mitigate water quality degradation. The submitted proposal does not require additional aquifer protection measures. However, during construction the project shall follow the Best Management Practices (BMPs) and facility design standards as identified and defined in the Stormwater Management Manual for the Puget Sound Basin. 11.) An Engineered Drainage & Erosion Control Stormwater Plan dated October 10, 2007 prepared by NTI Engineering & Surveyin has been submitted and approved by the Department of Community Development. Once the subject permit has been issued the applicant shall fully implement the provisions of the submitted plan. No clearing for roadways or utilities shall occur on the project site until clearing necessary for the installation of temporary sedimentation and erosion control measures have been completed. 12.) PRIOR TO FINAL BUILDING OCCUPANCY, PROPONENT SHALL SUBMIT A WRITTEN LETTER FROM KATE WADDELL, PE WITH NTI ENGINEERING & SURVEYING \L) STATING THAT THE STORMWATER FACILITY HAS BEEN CONSTRUCTED IN Q I)C ORDCE W TMETRS \1O CNT'•AN SLAT" DATED ITH HE OCTOBERREQUIRE 10,N2007SOF AS SIGNEDTHE "D BYAINAGET E&WADDELLEROION OF I 'i;O .i ' ;RING & SURVEYING. 13.) Outdoor r- dential storage shall be maintained in an orderly manner and shall create no fire, safety, health or sanitary hazard. 14.) Not more than 2 unlicensed vehicles shall be stored on any lot unless totally screened from view of neighboring dwellings and rights-of-way. Such screening shall meet all applicable performance and development standards specific to the district in which the storage is kept, and shall be in keeping with the character of the area. Screening shall meet the requirements of Chapter 18.30 JCC. Outdoor storage of 3 or more junk motor vehicles is prohibited except in those districts where specified as an autormobile wrecking yard or junk (or salvage) yard and allowed as a permitted use in Table 3-1 or Chapter 18.18 JCC, and such storage shall meet the requriements of JCC 18.20.100, Automobile wrecking yards and junk (or salvage) yards. In no case, shall any such junk motor vehicles be stored in a critical area. 15.) A minimum of two (2) on-site parking spaces shall be provided for the single family residence. 16.) Minimum setback from Dosewalliltoad right-of-way shall be 20 feet. Minimilhorth and east property line setbacks shall be 5 feet. Minimum west (rural forest lands adjacent) shall be 100 feet. If an ESA is present, then the more stricter setback(s) shall apply. 17.) Exterior lighting for residential uses shall not exceed twenty feet(20') in height from the finished grade, excepting when such lighting is an integral part of a building or structure. Ground level lighting is encouraged. 18.) Lighting fixtures shall be designed and hooded to prevent the light source from being directly visible from outside the boundaries of the property. The intensity or brightness of all lighting, during construction and after project completion shall not adversely affect the use of surrounding properties or adjoining rights-of-way. 19.) Maximum lot coverage is not to exceed 25%. Lot coverage is defined as amount of impervious surface which includes roof tops, driveways, concrete, etc. 20.) Thebuilding height is not to exceed 35 feet. 21.�` LA /R TO FINAL BUILDING OCCUPANCY, PROPONENT SHALL SUBMIT A WRITTEN . -' ETTER FROM THE GEOLOGIST WHO PREPARED THE GEOTECHNICAL REPORT y / DATED MAY 16, 2007 &ADDENDUM DATED OCTOBER 26, 2007 STATING THAT THE i STRUCTURE AND/OR FACILITIES HAVE BEEN CONSTRUCTED IN CONFORMANCE Ant/WITH THE REQUIREMENTS OF THE"GEOTECHNICAL REPORT." THE LETTER /lv\iObtot.BM$ MPED BY THE LICENSED GEOLOGIST/ENGINEER. 22.) HOUSE SITE GEOTECH CONDITIONS: EXCAVATE THE ROCK AND SLOPE COLLUVIUM SO THAT A TOTAL WIDTH OF 52 FEET IS AVAILABLE FROM FRONT TO BACK TO SERVE AS A HOUSE SITE. IF POSSIBLE REMOVE SPOLS FROM THE EXCAVATION AND USE THE MATERIAL TO FILL THE LOW AREAS BELOW NEAR THE SHOP BUILDING. SUCH AN EXCAVATION WILL REQUIRE THAT THE SITE BE LOWERED BY ABOUT 10 FEET WITH A TWO FOOT CROSS SLOPE ON THE HOUSE-SITE FOR GOOD DRAINAGE. STEEPEN THE SLOPE ABOVE TO NOT MORE THAN 1 ON 1 SO THAT THE EXCAVATED SLOPE ABOVE THE HOUSE IS NOT MORE THAN 45 DEGREES FROM THE HORIZONTAL IN STEEPNESS. SITE THE HOUSE SO THAT THERE IS AT LEAST 10 FEET FROM THE TOE OF THE SLOPE ON THE NORTH TO THE FOUNDATION LINE OF THE HOUSE. PROVIDE AT LEAST 6 FEET FROM THE FRONT OF THE HOUSE FOUNDATION (SOUTH SIDE)TO THE RIM OF THE ORIGINAL SLOPE. SITE THE HOUSE FOUNDATION ON ORIGINAL ROCK SO THAT THE VERTICAL LINES OF THE FOUNDATION AND FOOTING ARE AT LEAST 6 FEET CLEAR FROM ANY OF THE SIDE CAST SLOPE FILL MATERIAL. AS SIDE CAST MATERIAL IS BEING PLACED, DO AS MUCH AS POSSIBLE TO COMPACT IT AGAINST THE ORIGINAL SLOPE. THE USE OF A TRACK EXCAVATOR IS RECOMMENDED. THUS, THE EXCAVATOR COULD BE USED TO "POUND" THE SLOPE FILL INTO PLACE. COMPLETE THE SLOPE FILL WITH A SLOPE NOT STEEPER THAN 1 VERTICAL TO 1 HORIZONTAL. IF A DECK IS TO BE CONSTRUCTED ON THE AREA SOUTH OF THE HOUSE, PROVIDE CONCRETE PIERS THAT PENETRATE INTO THE ORIGINAL SLOPE TO SUPPORT THE OUTBOARD EDE OF THE DECK. THESE MAY BE BUILT USING CONCRETE TUBE FORMS AND CONCRETE OR SHORT STEEL PIPE PILES THAT ARE DRIVEN INTO THE SLOPE FILL. 23.) DUE TO THE NARROWER-THAN-EXPECTED WIDTH OF THE HOUSE SITE, THE SOUTHERLY BUILDING LINE LIES WITHIN ABOUT 5 FEET OF THE RIM OF THE DESCENDING SLOPE. A PORTION OF THE DECK PIERS AND THEIR FOOTING MUST BE EMBEDDED INTO THE NEAR-BREAK AREA OF THE SLOPE. 24.) FOUNDATION WORK AND THE PIER FOOTING INSTALLATION IN PARTICULAR SHOULD BE SUBJECT OF SPECIAL DESIGN REQUIREMENTS AND INSPECTION BY A GEOTECHNICAL ENGINEER. 25.) PROPONENT SHALL COMPLY WITH THE CONDITIONS AS SET FORTH IN THE DEPARTMENT OF PUBLIC WORKS RIGHT-OF-WAY PERMIT (RAP07-00193) APPROVED ON DECEMBER 19, 2007. ECEIVED 4�5©N 0QCr JEFFERSOtCOUNTY 44 DEPARTMENT OF COMMUNITY DEVELOPMENT OCT 2 6 2007 621 Sheridan Street• Port Townsend • Washington 98368 360/379-4450 • 360/379-4451 Fax p O www.co.efferson.wa.us/commdevelo ment JEFFERSON COUNTY DCOQ 9Master Permit Application MLA: 011 - 5 l Project Description(include separate sheets as necessary): Forrest&Shirley Towne Primary Residence Tax Parcel602292014 Property —20.25/-886054 Number:: size: (acres/square feet) Site Address and/or Directions to Property: 4104 Dosewallips.Rd, Brinnon, WA 98320 (-4 miles West of Hwy 101) i 6,0 so +L- an) ( ri4el; I-o Hoy l0 i +L Sow 4 3ctakto/ —$ rtl,- 0(4 DoSet,1 lq) Property Owner(s)of Record: Forrest G.Towne&Shirl y L.Towne Telephone:(360)796-4708 Fax: email: TowneFG@Hotmail.com Mailing Address: P.O.Box 694 Brinnon,WA 98320 Applicant/Agent(if different from owner): Telephone: Fax: email: Mailing Address: What kind of Permit?(Check each box that applies iBuilding 0 Variance(Minor, Major or Reasonable Economic Use) ❑ Demolition Permit ❑Conditional Use[C(a),C(d), or Cj** p Single Family 0 Garage Attached/Detached 0 Discretionary"D"or Unnamed Use Classification ❑ Manufactured Home ❑ Modular ❑Special Use(Essential Public Facilities)** ❑ Commercial* 0 Boundary Line Adjustment ❑ Change of Use Cl Short Plat** ❑ Address El Road Approach ❑Binding Site Plan** ❑Home Business ❑Cottagelndustry El Long Plat*" l Propane ❑ Planned Rural Residential Development(PRRD)/Amendments** ❑Sign ❑Plat Vacation/Alteration** ❑Allowed"Yes"Use Consistency Analysis ❑Shoreline Master Program Exemption/Ptrmit Revisions'"` Stormwater Management ❑Shoreline Management Substantial Development** O Site Plan Approval Advance Determination(SPAAD)* 0 Shoreline Management Variance ❑Temporary Use ❑Comprehensive Plan/UDC/Land Use District Map Amendment El Wireless Telecommunication* ❑Jefferson County Shoreline Master Program Amendment ❑Forest Practices Act/Release of Six-Year Moratorium ❑Tree Vegetaion Request *May require a Pre—Application Conference **Requires a Pre-Application Conference Please identify any other local,state or federal permits required for this proposal, if known: DESIGNATION OF AGENT I hereby designate to act as my agent in matters relating to this application for permit(s). OWNER SIGNATURE Date: By signing this application form,the owner/agent attests that the information provided herein,and in any attachments,is true and correct to the best of his,her or it's knowledge. Any material falsehood or any omission of a material fact made by the owner/agent with respect to this application packet may result in this permit being null and void. I further agree to save,indemnify and hold harmless Jefferson County against all liabilities,judgments,court costs,reasonable attorney's fees and expenses which may in any way accrue against Jefferson County as a result of or in consequence of the granting of this permit. I further agree to provide access and right of entry to Jefferson County and its employees,representatives or agents for the sole purpose of application review and any required later in ns. Sta s and right of entry will be assumed unless the applicant informs the County in writing at the time of the agplicati a ice. �/ Signature: Date: (0/ 3 2 '7 The action or actions Ap icant ' dertake as a resu f the issuance of this permit may negatively impact upon one or more threatened or endangered species and could lead to a potential'lake"of an endangered species as those terms are defined in the federal law known as the "Endangered Species Act"or"ESA."Jefferson County makes no assurances to the applicant that the actions that will be undertaken because this permit has been issued will not viol e the ESA. Any individual,group or agency can file a lawsuit on behalf of an endangered species regarding your action(s)even if you are in co ' n e with the Jefferson County development code.The Applicant acknowledges that he,she or it holds individual and non-transfe i i or ng to and complying with the ESA. The Applicant has read this disclaim r an signs and dates it below. Signature: P Date: 1 o� ��i�, C:\Documents and Settings\carat\Local Settings\Temporary Internet Files\OLK86\Master Permit Application 12-19-2006.doc • • BUILDER STATEMENT The signer of this stateme hereby certify that they are the Owners of the parcel referenced herein,that they are not licensed contractors and that they will be a r o sibili the General Contractor for the proposed project. �,,/� Signature: Date: _ / /..L0'5 GENERAL CONTRACTOR OR MANUFACTURED HOME INSTALLER: PHONE: FAX: ( ) ( ) MAILING ADDRESS: EMAIL: CONTRACTOR'S LICENSE WAINS NUMBER: NUMBER ARCHITECT/ENGINEER: Mountain Architects PHONE ( ) FAX:( ) MAILING ADDRESS: EMAIL Project Type: Frame Type: Bathrooms: Shoreline: Type of Sewage Disposal: Y New ❑ Wood Existing: 0 ❑ Sewer ❑ Addition ❑ Steel Proposed: 2 Bank ❑ Community System • Alteration/Remodel ❑ Concrete Total: 2 Height: iil Individual System ❑ Repair ❑ Masonry SEP Permit#SEP07-00055 ❑ Demolition "Other:L09 Bedrooms: 0 Water Supply: Existing: Setback: an Private well 11 Two Party Type of Heat: Proposed: 2 i i Public Total: 2 Name of System: If this is a Commercial Project you must answer the following: Number of Parking Spaces: Current: Proposed:_ Number of ADA Parking Spaces: Number of occupants(includes owners,tenants,employees,etc) Current Proposed IBC Occupancy: IBC Type of construction: Will you have Food Service? Yes / No If this is a Propane Tank and/or Appliance Installation permit,mark all items below that apply: 0Underground Tank C]Above ground Tank Size of Propane Tank: 1000 ❑Heat Stove 0 Cook Stove 0 Woodstove 0 Fireplace Insert 0 Hct Water Tank 0 Pellet Stove L Other 61d;a 4 T I - - Is this appliance being installed in a Manufactured/Mobile Home? Yes / N,6 When applying for a permit to install a propane tank you must also submit a site plan showing all of the buildings,all property lines,tank location and size,distances from the propane tank to all property lines,buildings and septic system components, including the reserve area. Square Footage Current Proposed For Office Use Only_ Amount Revision Main Floor Heated EH Bld App Review: jD� . 1929 I`33216.LI2 2n°Floor Heated Consistency Review: 165 tP Other Heated 7P, CEI'\,]N 1 Ease fee: Mezzanine 2 Additional Section: Heated Basement OCT 6 2007 Plan Check fee: Unheated Basement State Surcharge fee: JEFFERSON COUNTY DCD --f •5° Other Unheated Pot Water Review fee: 95 00 Garage/Carport SUBTOTAL q Decks 911/Rd Approach fee: 954 2 f v n Y Other G TOTAL: $...421qq1 q Receipt Number: q� LJ 2 1929 ^ 04 Cash/Check Number: 5�J✓O T t4 ESTIMATED CO Date: •Fair marke ue of all labor and material undation to finish l I U 37S coo Initials: C:\Documents and Settings\carat\Local Settings\Temporary Internet Files\OLK86\Master Permit Application 12-19-2006.doc • 0 s III • t� P ' v, i �:1..:\ `li' m s� s ^� . „ s " IM r 1 j Al AL g ____cs_)). ?,.?] 11;1 I :. lin ‘-...-3' 4 1, .1>.6,' : ...31,,,,,; . ii1111-y/kfri: ,1, i igg - ——-. •:. ! 4 ..- O_ I ' FS3. q 7� If-j use now —a, v9 I IA / ! \ �\ �LII Y 4i f8 t /; x �; i i _ \ H -'14,0i- ' \ r#744 #.111-,1-t" . j.i 0 gitj iz. -41 Ei X. -.\11 su ., / 1,,#-LI-i-il 4 N/ 3.. 7. • .X. r AI .An� ._ •Avi .�1'I�1;1/�,� • .err\Ilrp—gg aa . _V-g' - I.■■■i.^ 4 •°•i _ IL' " El 10-ii 2. S,g F t _\' I — --_! 'Y Ill :.8 Az, L. 11111111 ]I1Z_ 6 Z I IL'= _ t _� ' �aiall�i,llailii - " 91 0 :: 0' Y--- 0 c.._.... IP n . • Zac t\D a p 4o ir �Y $ ;32 : g —.4 ig I'1 I I IiroI I Thi Iill I � 1I ' 1I xI Aay yy I FORREST & SHIRLEY € S 1 - PI� ����$� e � �i � �;� TOWNIE • „%1 � NTI ENGINEERING & SURVEYING MC0� r5 4 t \\ 717 SOUTH PEABODY STREET,PORT ANGELES,WA 98362 Engineers■Land Surveyors■Geologists Construction Inspection■Materials Testing N7, (360)452-8491 1-800-654-5545 FAX 452-8498 E-Mail info@nti4u.Com www nti4u.com DRAINAGE & EROSION CONTROL REPORT FOR THE PROPERTY LOCATED AT 4104 DOSEWALLIPS ROAD JEFFERSON COUNTY, WASHINGTON TAX PARCEL# 602292014 LOCATED IN SECTION 29, TOWNSHIP 26 NORTH, RANGE 2 WEST, W.M. Prepared for Forrest Towne Prepared by • Kate Waddell, P.E. NTI Engineering & Land Surveying 717 South Peabody Port Angeles, WA 98362 360-452-8491 www.nti4u:com October 10, 2007D ECEIVE OCT 2 6 2007 JEFFERSON COUNTY DCD S • I. INTRODUCTION NTI Engineering and Land Surveying was hired by Forrest Towne to develop a drainage and erosion control plan for his proposed residential home site at 4104 Dosewallips Road, Jefferson County in Section 29, Township 26 North, Range 2 West. As part of this analysis, a stormwater collection, detention and conveyance system has been designed and a temporary & permanent erosion and sediment control plan has been prepared for the construction of a private single family residence, detached garage and driveway. II. DESCRIPTION OF SITE This 20 acre lot is located 4 miles up the Dosewallips River Basin near Brinnon. The property was cleared in the past and was replanted approximately 15 years ago. The site will remain forested except for the one plus acre to be used as the building site. The majority of the site is steep with rock outcrops. The property is bordered on the north by forest land, bordered on the east and west by private lots and on the south by Dosewallips Road. The stormwater detention pond, septic drainfield, wellhead and garage will be located along the south property line. The homesite will be located on the hillside along an existing logging road. III. METHODOLOGY Jefferson County requires the use of the Department of.Ecology (DOE) February 2005 Stormwater Management Manual for Western Washington. Based on the manual, all ten of the minimum requirements for new development apply to this property. These minimum requirements are and will be met as follows: Minimum Requirement#1 Preparation of Stormwater Site Plan • A complete site plan has been included in the appendix of this report. Minimum Requirement#2 Construction Stormwater Pollution Prevention (SWPP) • The SWPP includes twelve elements. Each element will be addressed separately as follows: Element#1 Mark Clearing Limits o The project site is in an isolated area 4 miles up the Dosewallips River Basin. In addition, the site is forest land on a steep rocky site. The installation of an actual fence is impractical and will cause additional disturbance to the site. The construction boundary and tree flagging can be accomplished just as effectively with colored flagging. For example, bright orange flagging for the boundary and bright pink fla m for the trees: ECEIVED OCT 2 6 2007 JEFFERSON COUNTY DCD s Element #2 Establish Construction Access o The construction access to the site will be the same as the final driveway access. o The driveways are already covered with native gravel, which minimizes debris and sediment leaving the site during construction. Element #3 Control Flow Rates o This item will be covered in Minimum Requirement #7. Element #4 Install Sediment Controls o The runoff from the developed area will flow through a course of check dams, which will decrease the velocity and minimize erosion prior to draining into the detention pond. o Pond berms and disturbed areas will be seeded to decrease long term erosion. o To minimize erosion during construction wattles will be installed, see plan for location and details. o The soil cover is primarily course aggregate with minimal fines. This natural condition will reduce the erosion during construction. Element #5 Stabilize Soils o To minimize the soil erosion forces of raindrop impact, flowing water and wind erosion during construction, the contractor will follow the exposed and unworked soil schedule set by DOE for all soils on site. From October 1 through April 30, no soils shall remain exposed and unworked for more than 2 days, and from May 1 to September 30, no soils shall remain exposed and unworked for more than 7 days. o. All exposed soils caused by construction activities shall be stabilized and hydroseeded or sodded upon completion of the project. Element#6 Protect Slopes o Uphill runoff drains through the site primarily through two drainage corridors. These drainage corridors shall remain in their existing location with culverts installed at driveway crossings. o Check dams will be installed at fifty-foot intervals along the home site driveway to decrease runoff velocity. Element#7 Protect Drain Inlets o. The catch basin installed during construction shall be protected from debris and sediment with filter fabric and/or solid covers. o Two culverts exist under Dosewallips Road, which drain stormwater from the north side of the road to the south side of the road and then across the lowland down to the Dosewallips River. These culverts as well as the existing roadside ditch shall be kept clear of debris and sediment. o All catch basins, culverts and drainage routes will be ins.hi) once a week and daily during a storm event. \ ley -41 OCT 2 6 2007 3 JEFFERSON COUNTY DtD S • Element #8 Stabilize Channels and Outlets o The existing drainage corridors beyond disturbed areas will be maintained during and after construction with native vegetation. o The pond and drainage ditches will be armored with native rocks to prevent erosion. Element #9 Control Pollutants o All chemicals, liquid products, petroleum products and non-inert wastes present on site shall be covered, contained and protected from vandalism and handled in a manner to minimize contamination of stormwater. o To minimize pollutants generated by heavy equipment and vehicles, all maintenance and repairs shall be conducted using spill prevention measures such as drip pans. Element #10 Control De-watering o if de-watering is required during construction and the de-watering water has similar characteristics to stormwater runoff, it is to be directed across the cleared site area and infiltrated on site. o Curtain drains behind the building foundations and vaults shall be directed through separate collection and disposal pipes and be daylighted into a armored & vegetated ditch section. Element #11 Maintain BMPs (best management practices) , , It is the contractor's responsibility to maintain the temporary erosion and ediment control measures and to install the permanent erosion and sediment control measures set forth in this report and plan. OCT o After construction is complete, maintenance of permanent erosion and ` ' sediment control measures are the owner's responsibility. o All temporary erosion and sediment control measures shall be removed JEffFRSON COUNTY DCD within 30 days after final site stabilization is achieved or as needed if longer. Element #12 Manage The Project o Management of this project can best be conducted in accordance with DOE if the guidelines set forth in this report and plan are followed to ensure that the long term goals of environmental protection and site stability are achieved. Minimum Requirement #3 Source Control of Pollution • As stated in Element#9, to minimize pollutants generated by heavy equipment and vehicles, all maintenance and repairs shall be conducted using spill prevention measures such as drip pans. • Source control of pollutants during construction can be maintained on this job by implementing the temporary erosion and sediment control measures set forth. • Long-term source control of pollution is the responsibility of the property owner and includes all categories of household and yard chemicals and pollutants. • The site was replanted with native trees 15 years ago. The vegetation appears • to be well established and with time will continue to thicken and become more dense. Only a small area of the 35-acre site will be disturbed. All disturbed areas other than the building sites and driveways will be reseeded and maintained in a natural state. Landscaping will be with native plants. Minimum Requirement #4 Preservation of Natural Drainage Systems and Ouffalls • The existing drainage route is via two culverts that cross under Dosewallips Road at approximately the center of the south property line. The stormwater will be detained on site and released at the pre-development retain into the existing drainage route. Minimum Requirement #5 On-site Stormwater Management • Uphill post development runoff from home site and driveway will be routed via a drainage ditch designed with check dams every fifty-feet in order to decrease the velocity, minimize erosion and increase infiltration,. • Stormwater will be detained before release in an unlined pond allowing for maximum infiltration. Minimum Requirement #6 Runoff Treatment • Treatment is required for the 6 month recurrence, 24 hour duration storm if the pollution generating impervious surface (PGIS) is 5,000 square feet or more and/or the pollution generating pervious surface (PGPS) is 3/ acre or more. • The only pollution generating area on the site is the driveway, which is approximately 24,000 square feet. The site will be vegetated in native plants and the building roofs will be non leachable: • Since the driveways will be pervious native gravel, the site does not require additional treatment. Minimum Requirement #7 Flow Control • Since the site does not drain directly into a large water body and the development area exceeds 10,000 square feet of impervious area and 3 acre of land cover conversion, the stormwater runoff will be detained onsite in a detention pond and released at the pre development rate. Minimum Requirement #8 Wetland Protection • No wetlands exist on the site or downstream of the development. Minimum Requirement #9 Basin/Watershed Planning • The replanting of the majority of the site, the check dams and detention pond will all decrease the velocity of the runoff, which will minimize the amount of site erosion. The runoff will be released at a pre development rate into the existing drainage corridor. No additional impact is expected from the residential development of the site. Minimum Requirements #10 Operation and Maintenance ]R JCEJ{\TED • The primary line of defense is observation and timely repairs if needed. After OCT 2 6 2007 ..j JEffEEN COUNTY DM • 110 each storm event, the first requirement of operation and maintenance of the stormwater collection system consists of ensuring free flowing catch basin, collection lines and outlet, as well as, maintaining the 'man-made' conveyance outlet pipe. The systems should be checked and cleaned regularly of debris and sediment. • The main concern with pond design is the risk of blowout. The pond has been designed with minimal above ground construction to decrease the risk of blowouts. If the pond is damaged, the pond needs to be repaired immediately to prevent offsite, downstream damage from occurring, and the design engineer needs to be consulted to prevent future blowouts. IV. CONCLUSIONS The development and implementation of the stormwater drainage system and erosion and sediment control plan are both a temporary and permanent part of the construction phase and the long term maintenance of the completed project. The first step in implementing this plan is preparing the site in accordance with DOE guidelines. The clearing limits and trees within the clearing limits that are to remain shall be clearly marked with flagging. In addition, to minimize erosion causing land disturbing activities, a wattle shall be installed down slope of all construction, see plan for locations. It is the owner's responsibility to maintain a clean roadway in accordance with the Jefferson County Public Works Department regulations. The standard wattle detail is provided on the plan. The next step is directing development runoff. The building runoff will be collected via gutters and downspouts, which will drain into underground 6" diameter ASTM D3034 piping sloped at 1% minimum. The piping from the home will drain into the upper driveway ditch. This driveway will slope towards the ditch at 2% and check dams will be installed in the ditch every 50 feet. The driveway's slope is approximately 18% and the check dams will slow down the runoff. The constructed ditch will drain into an existing drainage corridor, which will drain into the pond. The piping from the garage will drain directly into the pond, and the lower driveway will be sloped to drain into pond. The upland runoff cutting down through the center of the site will drain into the pond. The drainage route crosses the upper ditch and both driveways. Culverts will need to be installed under the driveways and ditch line. The pond has been sized for the 100 year, 24 hour storm event. The pond will be unlined to allow for on site infiltration. Therefore, infiltration is an effective pollution control measure. The runoff will be released via a catch basin with an orifice and weir discharge control plate. The orifice and weir size are detailed on the plan. The discharge from the pond will be released into the Dosewallips Road northerly roadside ditch. The northerly ditch drains via two culverts under Dosewallips Road to the south side of the road. The runoff drains across the lower neighbor's property IPZ I EJD Dosewallips River. OCT 2 6 2007 JEFFERSON COUNTY OCO • The lower neighbor's field is a local depression. The property owner stated their field floods every storm event and then dissipates quickly once the storm has passed. This is a historical event and has been happening for generations. A copy of the Western Washington Hydrology Model reports for this property and the plan are located in the appendix. V. LIMITATIONS This report has been prepared for the exclusive use of Forrest Towne for his proposed construction of a private home. The recommendations in the report apply only to the property that was examined and they are not applicable to other locations. The investigation and recommendations contained in this report are based upon site condi- tions as they existed at the time of our site inspections. During construction, if subsurface or other conditions are discovered that are significantly different from those described in the report, NTI should be advised at once so that we can review the conditions and reconsider our recommendations, where necessary. Unanticipated soil conditions are commonly encountered on construction sites, especially when the topography has been altered years ago. Such unexpected conditions frequently require that additional expenditures be made to attain a properly constructed project. We recommend that a contingency be established in the project budget and schedule to cover unexpected conditions. Within the limitations of scope, schedule and budget, our services have been executed in accordance with generally accepted professional engineering principles and practice. This warranty is in lieu of all others, either expressed or implied. NTI ENGINEERING&SURVEYING WA `� WASH � *Q" Kate Waddell, P.E. ' Design Engineer 'el F; So 1 `s'ONAL G:\Gen\Kate\Drainage DOE 2005\Towne\drainage report.doc RCEllVED OCT 2 6 200? JUFERSQK CQti II ICU • APPENDIX RECEIVE OCT 2 6 2007 JEEEER M COUNTY DCfl 411 WESTERN WASHINGTON HYDROLOGY MODEL V2 PROJECT REPORT Project Name: default Site Address: City Report Date : 9/14/2007 Gage : Quilcene 0,31 Data Start 1948 Data End 1993 9,,7"Z5 Precip Scale: 1.44 pc/AA-,0431-4/ PREDEVELOPED LAND USE Basin Basin 1 O� Flows To Point of Compliance 1 e 375r GroundWater: No Land Use Acres TILL FOREST: 20 Z`✓i T4' Z DEVELOPED LAND USE Basin Basin 1 Flows To Pond 1 GroundWater: No t5 Land Use Acres TILL FOREST: 19.55 IMPERVIOUS: 0.45 RCHRES (POND) INFORMATION Pond Name: Pond 1 Pond Type: Trapezoidal Pond ' Pond Flows to : Point of Compliance Pond Rain / Evap is not activated. tI Dimensions Depth: 4ft. Bottom Length: 148.27ft. Bottom Width : 29.65ft. Side slope 1: 0.5 To 1 fib` Side slope 2: 0.5 To 1 Side slope 3: 0.5 To 1 Side slope 4: 0.5 To 1 Volume at Riser Head: 0.321 acre-ft. Discharge Structure ���� Riser Height: 3 ft. Ih Riser Diameter: 18 in. NotchType Rectangular Notch Width : 1.310 ft. OCT 2 6 2007 Notch Height: 1.228 ft. Orifice 1 Diameter: 7.137 in. Elevation: 0 ft. f [[[ Pond Hydraulic Table JLFFFASON COUNTY DO Stage(ft) Area(acr) Volume(acr-ft) Dschrg(cfs) Infilt(cfs) 0.000 0. 101 0.000 0. 000 0.000 0.044 0.101 0.004 0.282 0.000 0.089 0.101 0.009 0.399 0.000 0.133 0.101 0. 013 0.488 III 0.178 0.102 0. 018 0.564 0. 000 0.222 0.102 0.023 0.631 0.000 0.267 0.102 0. 027 0.691 0.000 0.311 0.102 0.032 0.746 0.000 0.356 0. 102 0.036 0.798 0.000 0.400 0.103 0. 041 0.846 0.000 0.444 0.103 0.045 0.892 0.000 0.489 0.103 0.050 0.935 0.000 0.533 0.103 0.054 0.977 0.000 ! 0.578 0.103 0.059 1.017 0.000 0.622 0.103 0. 064 1.055 0.000 0.667 0.104 0.068 1.092 0.000 0.711 0.104 0.073 1.128 0. 000 0.756 0.104 0.077 1. 163 0.000 0.800 0.104 0.082 1.197 0.000 0. 844 0.104 0.087 1.229 0.000 0.889 0.105 0. 091 1.261 0.000 0. 933 0.105 0.096 1.292 0.000 0. 978 0.105 0. 101 1.323 0.000 1.022 0.105 0. 105 1.353 0.000 1.067 0. 105 0. 110 1.382 0.000 1.111 0.105 0.115 1.410 0.000 1.156 0. 106 0.119 1.438 0.000 1.200 0.106 0.124 1.465 0.000 1.244 0.106 0. 129 1.492 0.000 1.289 0.106 0.133 1.519 0.000 1.333 0.106 0. 138 1.545 0.000 1.378 0.107 0. 143 1.570 0.000 1.422 0.107 0. 148 1.595 0.000 1.467 0.107 0.152 1.620 0. 000 1.511 0.107 0.157 1.645 0.000 1.556 0.107 0.162 1.669 0.000 1.600 0.108 0. 167 1.692 0.000 1.644 0.108 0.172 1.716 0.000 1.689 0.108 0.176 1.739 0.000 1.733 0.108 0.181 1.761 0.000 1.778 0.108 0.186 1.785 0.000 1.822 0.108 0.191 1.854 0.000 1.867 0.109 0.196 1.952 0.000 1.911 0.109 0.200 2 .068 0. 000 1.956 0.109 0.205 2 .200 0.000 2 .000 0.109 0.210 2 .344 0.000 2.044 0.109 0.215 2 .498 0.000 2.089 0.110 0.220 2.661 0.000 2 .133 0.110 0.225 2 .831 0.000 2.178 0.110 0.230 3 .009 0.000 2 .222 0.110 0.234 3 .192 0.000 2.267 0.110 0.239 3.380 0.000 2.311 0.110 0.244 3 .573 0.000 2 .356 0.111 0.249 3 .769 0 .000 2.400 0. 111 0.254 3 .969 0.000 2 .444 0.111 0.259 4.172 0.000 2.489 0.111 0.264 4 .377 0 .000 � 2 .533 0.111 0.269 4 .584 0.000 RECEIVE II 2 .578 0.112 0.274 4.793 0 .000 2.622 0.112 0.279 5.003 0.000 2 .667 0.112 0.284 5.214 0.000 OCT 2 6 Mr 2.711 0.112 0.289 5.425 0.000 2.756 0.112 0.294 5.637 0.000 2 .800 0.113 0.299 5.874 0.000 2.844 0.113 0.304 6.130 0.000 JEFFERSON COUNTY DCD 2 .889 0.113 0.309 6.391 0 .000 2.933 0. 113 0.314 6.656 0.000 2.978 0.113 0.319 6.927 0.000 3 .022 0.113 0.324 7.120 0.000 3.067 0.114 0.329 7.341 0.000 3 .111 0.114 0.334 7.647 0.000 3 .156 0. 114 0.339 8.019 0.000 3.200 0.114 0.344 8.446 0 .000 3.244 0. 114 0.349 8.922 0.000 2 75:2Q n llc n Z�,a a ddl n nnn III 3 .333 0.115 0.359 10.00 0.000III 3 .378 0.115 0.364 10.60 0. 000 3 .422 0.115 0.370 11.23 0.000 3 .467 0.115 0.375 11.89 0.000 3 .511 0.116 0.380 12 .59 0.000 3 .556 0.116 0.385 13 .32 0.000 3 .600 0.116 0.390 14 .07 0.000 3 .644 0.116 0.395 14.86 0.000 3 .689 0.116 0.400 15 .67 0.000 3 .733 0.116 0.406 16.51 0.000 3 .778 0.117 0.411 17.37 0.000 3 . 822 0.117 0.416 18 .25 0.000 3 .867 0.117 0.421 19.16 0.000 3 . 911 0. 117 0.426 20.10 0.000 3 .956 0.117 0.432 21. 05 0.000 4 .000 0.118 0.437 22 . 03 0.000 ANALYSIS RESULTS Flow Frequency Return Periods for Predeveloped Return Period Flow(cfs) 2 year 3 .563807 5 year 5.426954 10 year 6.950793 25 year 9.248324 50 year 11.258139 100 year 13 .548411 Flow Frequency Return Periods for Developed Mitigated Return Period Flow(cfs) 2 year 3 .218126 5 year 4.826032 10 year 6.045071 25 year 7.766019 50 year 9.182865 100 year 10.718503 Yearly Peaks for Predeveloped and Developed-Mitigated Year Predeveloped Developed 1949 10. 681 9.834 1950 3 .695 3 .084 1951 4 .220 4.115 1952 3 .329 3.271 1953 3 .850 3 .665 1954 4.680 4.687 1955 5.224 5.226 1956 17.964 12.725 1957 3 .230 3 .268 1958 5.777 3 .170 1959 5.784 5.708 1961 4 .996 3 .303 891 RE C EIV� 1961 4 .996 2.891 j(J 1962 3 .815 3 .510 a 1963 3 .336 3 .425 1964 2 .488 2 .059 OCT 2 6 2007 1965 1.567 1.559 1966 10.936 6.935 1968 3 .886 3 .968 JEFFERSON COUNTY DO 3 .631 3 .591 1969 2 .918 2.772 1970 3 .468 3.477 1971 5.297 5.419 1972 3 .849 3 .529 1973 3 .645 3 .670 1974 5.178 4.516 1975 3 .800 3 .588 197E 4 .720 4..904 III1977 2 .616 411 .609 1978 2 .933 2 .584 1979 2 .962 2 .949 1980. 3 .802 2 .246 1981 2 . 880 2.003 1982 2 .978 1.939 1983 5.723 5.570 1984 1.661 1.343 1985 2 .624 1. 866 1986 3 .054 3 .035 1987 3 .862 3 . 120 1988 2 .651 2 .271 1989 1.495 1.387 1990 2 .061 1.622 1991 4.129 4.198 1992 3 .617 3 .673 1993 2 .275 2 .202 Ranked Yearly Peaks for Predeveloped and Developed-Mitigated Rank Predeveloped Developed 1 10.9359 9.8341 2 10.6814 6.9352 3 5.7844 5.7078 4 5.7770 5.5704 5 5.7226 5.4188 6 5.2968 5.2256 7 5.2235 4.6874 8 5.1776 4.5158 9 4. 9963 4 .5041 10 4.7199 4.1984 11 4.6797 4.1151 12 4.2195 3 .9675 13 4.1292 3.6726 14 3.8858 3 .6699 15 3 .8624 3.6654 16 3.8499 3.5907 17 3 .8490 3 .5877 18 3. 8152 3.5286 19 3.8022 3 .5100 20 3 .8003 3 .4770 21 3.6947 3.4252 22 3 .6453 3 .3034 23 3 .6312 3 .2714 24 3.6173 3.2683 25 3 .4680 3 .1695 26 3.4020 3 .1198 27 3 .3360 3.0843 28 3 .3287 3 .0352 29 3 .2299 2.9487 30 3 .0535 2.8911 31 2.9780 2 .7723 32 2 .9621 2.6088 33 2 .9331 2 .5840 34 2.9183 2.2714 35 2 .8805 2 .2456 RECEIVED 36 2.6513 2 .2015 jjj�(���-�"� 37 2 .6239 2.0592 38 2 .6157 2 .0030 39 2.4879 1.9387 OCT 2 6 2007 40 2 .2750 1.8655 41 2.0607 1.6223 43 1.5670 1.5588 43 1.5670 1.3874 JEffEflSON COUNTY DCD 44 1.4954 1.3433 1/2 2 year to 50 year Flow(CFS) Predev Final Percentage Pass/Fail 1.7819 2040 1949 95.0 Pass 1. 8776 1709 1610 94.0 Pass 1. 9733 1414 1342 9• Pass Pa III 2 .0691 1186 1110 93 . 0 Pass 2 .1648 984 945 96.0 Pass 2 .2605 818 788 96.0 Pass 2 .3562 687 673 97. 0 Pass 2 .4519 571 554 97.0 Pass 2 .5477 459 468 101. 0 Fail 2 .6434 383 386 100. 0 Pass 2 .7391 324 325 100 . 0 Pass 2 .8348 276 283 102 .0 Fail 2 . 9305 247 240 97.0 Pass 3 .0263 211 213 100. 0 Pass 3 . 1220 188 181 96.0 Pass 3 .2177 166 158 95. 0 Pass 3 .3134 137 131 95. 0 Pass 3 .4091 116 110 94 .0 Pass 3 .5049 96 89 92 .0 Pass 3 .6006 82 69 84 .0 Pass 3 .6963 65 55 84 . 0 Pass 3 .7920 55 45 81.0 Pass 3 .8877 43 42 97.0 Pass 3 .9835 42 36 85. 0 Pass 4.0792 35 34 97 .0 Pass 4 .1749 31 29 93 .0 Pass 4 .2706 27 26 96.0 Pass 4 .3663 26 24 92 . 0 Pass 4.4621 25 23 92 .0 Pass 4.5578 22 20 90 .0 Pass 4 .6535 20 18 90.0 Pass 4 .7492 18 15 83 .0 Pass 4 .8449 18 14 77 .0 Pass 4 .9406 18 14 77.0 Pass 5.0364 14 12 85.0 Pass 5. 1321 14 12 85.0 Pass 5.2278 11 11 100. 0 Pass 5 .3235 9 11 122 . 0 Fail 5 .4192 9 10 111.0 Fail 5.5150 9 10 111.0 Fail 5.6107 9 9 100.0 Pass 5.7064 9 8 88 .0 Pass 5 .8021 5 7 140.0 Fail 5.8978 4 7 175.0 Fail 5.9936 4 7 175.0 Fail 6.0893 4 5 125.0 Fail 6.1850 4 5 125. 0 Fail 6.2807 4 5 125.0 Fail 6.3764 4 5 125 .0 Fail 6.4722 4 5 125.0 Fail 6.5679 4 4 100.0 Pass 6.6636 4 4 100. 0 Pass 6.7593 4 4 100.0 Pass 6.8550 4 4 100.0 Pass 6.9508 4 3 75.0 Pass 7.0465 4 3 75.0 Pass 7.1422 3 3 100.0 Pass RECEIVED 7.2379 3 3 100. 0 Pass 7.3336 3 3 100. 0 Pass 7.4294 3 3 100.0 Pass 7.5251 3 3 100.0 Pass OCT 2 6 2007 7.6208 3 3 100.0 Pass 7.7165 3 3 100.0 Pass 7.8122 3 3 100. 0 Pass JEFFERSON COUN1Y DCD 7.9080 3 3 100.0 Pass 8.0037 3 3 100.0 Pass 8.0994 3 3 100.0 Pass 8.1951 3 2 66.0 Pass 8.2908 3 2 66.0 Pass 8.3866 3 2 66.0 Pass 8 .4823 3 2 66.0 Pass 8.5780 3 2 66.0 Pass 8.6737 3 2 66.0 Pass R 7FQ4 2 7 titi n Pacc III III8.86S2 3 2 66.0 Pass 8 .9609 3 2 66. 0 Pass 9.0566 3 2 66.0 Pass 9.1523 3 2 66.0 Pass 9.2480 3 2 66.0 Pass 9.3437 3 2 66.0 Pass 9.4395 3 2 66. 0 Pass 9.5352 3 2 66.0 Pass 9.6309 3 2 66.0 Pass 9.7266 3 2 66.0 Pass 9.8223 3 2 66.0 Pass 9. 9181 3 1 33 .0 Pass . 10.0138 3 1 33 .0 Pass 10.1095 3 1 33 .0 Pass 10.2052 3 1 33 .0 Pass 10.3009 3 1 33 .0 Pass 10.3967 3 1 33 .0 Pass 10.4924 3 1 33 .0 Pass 10.5881 3 1 33 . 0 Pass 10.6838 3 1 33 .0 Pass 10.7795 2 1 50.0 Pass 10. 8753 2 1 50.0 Pass 10.9710 1 1 100.0 Pass 11.0667 1 1 100 .0 Pass 11.1624 1 1 100.0 Pass 11.2581 1 1 100 .0 Pass The development has an increase in flow durations from 1/2 predeveloped 2 year flow to the 2 year flow or more than a 10% increase from the 2 year to the 50 year flow. Water Quality BMP Flow and Volume. On-line facility volume: 0 acre-feet On-line facility target flow: 0 cfs. Adjusted for 15 min: 0 cfs. Off-line facility target flow: 0 cfs. Adjusted for 15 min: 0 cfs. program and accompanying documentation as provided 'as-is' without warranty of any kind. The entire risk regarding the performance and results of this program is assumed by the user. AQUA TERRA Consultants and the Washington State Department of Ecology disclaims all warranties, either expressed or implied, including but not limited to implied warranties of program and accompanying documentation. In no event shall AQUA TERRA Consultants and/or the Washington State Department of Ecology be liable for any damages whatsoever (including without limitation to damages for loss of business profits, loss of business information, business interruption, and the like) arising out of the user of, or inability to use this program even if AQUA TERRA Consultants or the Washington State Department of Ecology has been advised of the possibility of such damages. RECEIVED OCT 2 6 2007 aEfFtO 9 COM KO • 0. . YEAR FLOW(ft) 100 1:3 55 10.0 op g4,909:0aPorP 50 1126 ".., "— ' •!!",","•,"41,1 ll,i • i .0,„oRM ."" ' ' .•,, ,:•I J "1,:. 1 7,/i 0- 25 9.248 •1 i .. ,1 I III 10 951 I ca h. o Predeveloped 1 ," 6. : 111, = 10E-1 x Developed Mitigated i•11 , , 4, 5 5.427 l- --i. !,: ? ,•'',,• , ' ,I 0 V 10E-2 1 10 20 30 40 50 60 70 CO 90 99 Cumulative Probability Yearly Peaks for Predeveloped Flow Frequency Chart YEAR FLOW(f) pi'Ili i —lir 1126 ...-,..........1,47., / i t 11?1,i x Developed uvih reeky , ; illil 1 8.89 1- 11 iL :' (1) • 44'. 6 52 , 'i 111Hid IL I 1 Hii , , 1 4.15 .• i / , , . . tll) — - ' ' . •:" " :: 1 : '' ' .0 ',..._ cy 1.78 -- ol .• , . ,, .. .. ES 10E,•5 3 10E-4 10E3 10E2 10E-1 1 10 380 ,0000 ••••••.. o.„:•,:,.--,-.,•,-.,,,:::•2,,2-o.::-•::..c.c.,-5,- ' ..,..,o Percent Exceedin• Yearly Peaks for developed W/O Pond _v.__ Duration Graph YEAR FLOW(cfs) 100 10.72 ---------- ' Ili I ll lel 11 i .: i 1 i1 111 '1 I 50 9,183 i 1 . 1 . 1 11 1 25 7.766 - ---- ' 9 • 1 *10 6.046. ' •; , '. '1 ): ,,, 5 4.826 2 3.218 6 Yearly Peaks for Developed W/Pond RECEIVED OCT 2 6 2007 JEFFERSON COUN1Y OCO 0 Concern About House Foundation Mitigated Due to the narrower-than-expected width of the house site, the southerly building line lies `within about 5 feet of the rim of the descending slope. A portion of the deck piers and their footing must be embedded into the near-break area of the slope. - At the follow-up visit we inspected the rock outcrops and estimated their locations in the subsurface. We determined that due to the presence of the rock, an excellent house foundation could be constructed at the site. We felt, however that the foundation work and the pier footing installation in particular, should be the subject of special design requirements and inspection by a geotechnical engineer. • Hence, NTI Engineering&Land Surveying reviewed the house building plans and developed the foundation plan in collaboration with the Precision Craft designers and the • -structural engineer. Thus, the construction plans now call for all piers near the slope to be founded on keyed bedrock. The plans also require that the pier installation be inspected by the geotechnical -foundation e ` ineer. Once construction of the foundation is completed, Steve Luxton MSc E, the geotechnical—foundation engineer of NTI Engineering&Land Surveying,will provide an inspection certificate to the Jefferson Co BuildingDepartment certifying that the foundation is constructed,'as specified and to his satisfaction. � b ` It is recommended that the certificate be,a necessary condition of the occupancy permit. Sincerely, NTI ENGINEERING&LAND SURVEYING ' � } OCT 2 6 2007 y Steve S. Luxton MSc. PE ' pf` A84'1 Geoteohnical Engineer � � - • SAL Towne Shop 4104 Dosewallips Rd. Brinnon, WA 98320 Tax Parcel : 602292014 Prepared By: Forrest Towne P.O. Box 694 Brinnon, Wa 98320-0694 Home :(360) 796-4708 Work: (360) 396-1354 Cell: (360) 620-1876 1c\ DEC 10 M7 JEFFEDcyDN CDUN�I DCD 'fit 0 1—`Dl ok M)— A 0 1 - J-'1q 1�i�0q-55 Site Plan 16 NORTH Elev. 649 - �..___. - -- ____S88-20-34"E 9024.113 sA ..�d�e�'... _. _.. _.. _.. _.. .__.._.._.._.._.._ E 600'Elevlatfon .... A 1. zA: �--��� q: .._.._.._.._.._.._.._.._.._.._._.._.._.._.._.._.._.._.._.._.._ _ Elev. A <A,` �;:1 q•; - Adprerd propertyb-.._.._.._.. _.. _.. _.. _.. _.. _.. _i.� A Tax Parcel soz2D2Dco A'a _ -A` A,= ' A public owned by U.S.A. o _ A;= I A A ,A, ,A,. A, A = A' tymPlcNatimeiForeet 70l(eb „+ •/eL /A'v i (�q= •.,� 9700-Exempt l�J' - ,F { 48% Grade Slope A A L n_ A 1 1 V u � •,.,,, .., _ _ v A A _ MAZ - V :4 As -A ,A.:A" •A"- /`ni•. ;q° Is • 'A' . �3. A;?:. 'A' A As A: A; tit 'A• A: A_ 'i::� •A. 'A - Ar A' I ;A; (A) 'A ' - ' - A 'A R,A,: A, - A ,As � q' /ni /n; (n) A' sQY ��; I ,A _ A A ,q_ A, A A I I A; A A A sAs (A� • A r,_` A' ,A. =A V .A 'q` •A� I I °A !ny (�a,� _ ;A:; •�:.1� =A."A (,• •A ;A.; A;A; i AdJecem property Is =A= L:.y A /�-� ',, (q3 Tax Parcel li02292004 Q) -qA I privately awned by Donita Cook - Zoned 6300 Forest Lana ... = A = - ", , , A 400'Elevabon I A A A •.,,` qe • .. _ '4 J • A- zA - sN iA rn A R A o �(���� Is = x % °A' �Rj L A' _ ,.. A; A, �Aap A; :,\" Adjacent propartY is • • • • • • `A" q'_ , ' , Tax Parast 292015 CA h AA' - - .. / ; ` + _ V plately owrwtl by De Etle Rrodenon Jr. I A; 3 ',: 8300-Forest Land A•MA - ,,, t:i A A A. 'A I I 721'-0" 1 Q) Transport Line I `utters 210. . TerAr d • =A"e "A' r------------------------ + / ;A- FPP--rU-: I ` r Propene Line L � \ 24"culvert / 46-0" I A ;A; q; I A.` .A' I A'= `A ,. 1 A " A i A,501_9" I A 10' No I Build Zone A Reserve e Drainfield A- 0 ft. 30 ft. 50 ft. 100 ft. A„ -;s a u Elev. 1 88° 47' 12" W g3 4.437 N • "A ,A€ -A- A' s As 400'-0" ,A - A° A I A i :,A' o;q3 A, 200' Elevation i ;•✓'' A°s /- Exisbn9 private Odvewey Existing Private Driveway O / 4' Deep /. Detention Pond 4 / '., y YEmuant line / 30' Setback Proposed 1000Oanon UMm9round Propene Uridergrountl Propane Line h Gutter's 10' Setback. 7-4&I- - a i 40' \ storm vuaty QueaN m coanry DHoti 0,5:1 rn Detention Pand 1 1 0 Tranpat Lire 25' 200' 4 Heed of Skpe N 129 4.560 N 90° 0' 0" W 284 6.000 S 85° 8' 20 W ncewallinc Rd 81' 0" .I 42'-0" .I 53'-0" 1 67'-0" 1 55'-0" 1 55'-0" 105' •1992 sq. ft. i 954 sq. ft. Deck ♦ 1 ♦ N i ♦♦ I ♦ ♦ ♦ I ♦ i • ` I Underground ♦ ♦ I Water Une I o I EvM I I Existing Ternporary Pump House ' nd-.A 117^ 1600 sqft ������ /%®�///�i,/ • ,• PON Ro 11 147'-0" KRAIT # 07-0561 ;FrrrvP M Pry►"Tv roe I. ^-J