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HomeMy WebLinkAboutBLD2008-00151 IIIPU ILDING PERMIT APPLICAAN Review 00189 Review Type: I Jefferson County Department of Community Development 621 Sheridan Street Port Townsend, WA 98368 PERMIT #: BLD08-00151 Received Date: 4/16/2008 SITE ADDRESS: 90 COURSEY LN PORT LUDLOW, 98365 OWNER: NANCY M HAYDEN PHONE: 360-437-9592 MICHAEL T HAYDEN 90 COURSEY LN PORT LUDLOW WA 983658709 TAX 41 SUBDIVISION: Block: Lot: PARCEL NUMBER: 821083007 Section: 8 Township: 28 N Range: 01 E CONTRACTOR: A CONSTRUCT N PHONE: 360-379-9636 PO X 1419 PORT DL CK WA 98339 Contr., tor's License AKCONC*922D1 Expires 3/21/2010 REPRESENTATIVE: PHONE: PROJECT DESCRIPTIOI ADDITION & REMODEL TO EXISTING SFR TYPE OF WORK RES SQUARE FOOTAGE: TYPE OF IMP ADD MAIN: 864 VALUATION 145,500.00 ADD'L: HEAT TYPE: EEE CODE EDITION: 2006 HEAT BASE: HEAT TYPE: OCCUPANCY: R-3 UNHEATED: #OF STORIES: OCCUPANCY: OTHER: CONST TYPE: 5N GARAGE: SHORELINE: CONST TYPE: DECK: 20 SETBACK: BANK HEIGHT: SEWAGE DISPOSAL: WATER SYSTEM: PWELL BEDROOMS: BATHROOMS: Exist: 2 Exist: 2 Prop: 0 Prop: 0 Total: 2 Total: 2 Routing Date: Li' 1 G ( O Type Amount Paid By: Date: Receipt: APP 'JEE fp�roved/Date Permit $1,251.35 AMS 04/16/08 97145 Plan Check $813.38 AMS 04/16/08 97145 State Building Code $4.50 AMS 04/16/08 97145 JUL I 2008 Potable Water Application $59.00 AMS 04/16/08 97145 Jefferson County Planning Total: $2,128.23 & Building Department Jefferson County Building DOsion Permit Null: BLD08-00151 Applicant: HAYDEN BUILDING PERMIT INSPECTION APPROVALS \pplicable Code: 2006 International Building Codes To schedule inspections, call (360)379-4455 no later than 7:00 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 -7/. 9pe, Erosion Control / E�/�/Ofj 4/ BMPs Foundation Footing -7/29/0� Footing Drains 8/i�/� Foundation Stem Wall 8/1/625 Under Floor Framing e,.:5/i4 �� Straps(hold downs) ,�/Z f �es ��, g/�/off • Ext. Shear Wall Nailing g�%/og Rough-in Plumbing 9/2- 3 /12g Framing q/z3/'�g 1/ Airseal 9/ 0 10 Insulation: Walls gri2 Insulation: Floors 03/00 /p / Insulation: Ceiling1/ Int. Shear Wall Nailing Wallboard Nailing /0/1,1 C. Drywell/Alt Drainage /03/DS Downspout to splashblock and drywell. FINAL INSPECTION Iola 61/ FINAL INSPECTION MUST BE APPROVED PRIOR TO BUILDING BEING OCCUPIED THIS PERMIT IS VALID FOR ONE YEAR CONDITIONS for Building Permit# :BLD08-00151 1.) Minimum setback from the easements along for Coursey Lane along the eastern and southern boundaries or the parcel boundary is 20 feet. Minimum setback from the easement along the northern parcel boundary is 20 feet. Minimum setback from the western parcel boundaries is 5 feet. 2.) The identified Fish and Wildlife Habitat Conservation Area (Type N Stream), shall maintain a vegetative buffer setback of 75 feet. The setback shall be measured horizontally from the Ordinary High Water Mark (OHWM) to the proposed development. 3.) An additional setback of five (5) feet is required from the edge of the buffer area to the proposed development. 4.) A permanent physical separation along the boundary of the buffer area shall be installed and permanently maintained. Such separation can include installing logs, trees, a hedgerow, or any other prominent physical marking approved by the UDC Administrator. 5.) Buffer perimeters shall be marked with temporary signs at an interval of one per parcel or every one hundred (100) feet, whichever is less. Signs shall be in place prior to and during construction activities. The signs shall contain the following statement: "Buffer- Do Not Remove or Alter Existing Vegetation." 6.) A stormwater Plan 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 and contact the Jefferson County Department of Community Development to arrange a schedule to inspect the property for plan compliance. A Certificate of Occupancy will not be issued until the Department verifies plan compliance. 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. 7.) The building height is not to exceed 35 feet. RECEIVED iiii0N-?..., i r,, JDEFFERSON SUNTY . rr 1�4 DEPARTMENT OF COMMUNITY DEVELOPMENT APR 1 6 nog 621 Sheridan Street • Port Townsend •Washington 98368 360/379-4450 • 360/379-4451 Fax �.qs, �0� www.co.jefferson.wa.us/commdevelopment JEffERSON COUNTY OCR Master Permit Application MLA: oO- 3 s9 Project Description (include separate sheets as necessary): aid 1 f/ar) 4 re in0Ciel 10 E>_x i A-/nq -51-e Tax Parcel c0Z/ �8.3 �� Property Number: Size: (acres/square feet) Site Address and/or Directions to Property: 940 COU,ZSE7 Le/VE Property Owner(s)of Record: 1/4/VC`,' jil /`7/C y.teL //AYDEN Telephone:-"die 43/7 •959.2 Fax: - email: Mailing Address: 90 COURSPY LANE , Peler 4VAPZ°k/, 0/,4 98345.E 672.o. Applicant/Agent(if different from owner): Telephone: Fax: email: Mailing Address: What kind of Permit?(Check each box that applies *Building 0 Variance(Minor, Major or Reasonable Economic Use) El Demolition Permit ❑ Conditional Use[C(a), C(d), or C)** ® Single Family 0 Garage Attached/Detached 0 Discretionary"D"or Unnamed Use Classification ❑ Manufactured Home 0 Modular 0 Special Use(Essential Public Facilities)** ❑ Commercial* 0 Boundary Line Adjustment ❑ Change of Use ❑ Short Plat** ❑ Address 0 Road Approach 0 Binding Site Plan** ❑ Home Business 0 Cottagelndustry 0 Long Plat** ❑ Propane 0 Planned Rural Residential Development(PRRD)/Amendments** ❑ Sign ❑ Plat Vacation/Alteration** ❑Allowed"Yes"Use Consistency Analysis 0 Shoreline Master Program Exemption/Permit Revisions** ❑ Stormwater Management ❑Shoreline Management Substantial Development** ❑ Site Plan Approval Advance Determination (SPAAD)* 0 Shoreline Management Variance ❑ Temporary Use 0 Comprehensive Plan/UDC/Land Use District Map Amendment ❑Wireless Telecommunication* 0 Jefferson County Shoreline Master Program Amendment ❑ Forest Practices Act/Release of Six-Year Moratorium 0 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 /T'/•-r, 4-0-_ Date: 4,*1.4-)2CN * 200$ 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 inspections. Staffs access and right of entry will be assumed unless the applicant informs the County in writing at the time of the application that he she wants riot'no ice. Signature: // Date: M,4 C*' 20o 8 The action or actions Applicant will undertake as a result of the issuance of this permit may negatively impact upon one or more threatened or endangered species and could lead to a potential"take"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 violate 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 compliance with the Jefferson County development code.The Applicant acknowledges that he,she or it holds individual and non-transferable repo ibility herin to and co plying with the ESA. The Applicant has read this disclaimer and signs and dates it below. Signature: for Date: fr4QG1/ 2t O G:\Per nitCenter\###FORMS###\DRD FORMS\Master Permit Application 12-19-2006.doc • BUILDER STATEMENT • The signer of this statement does hereby certify that they are the Owners of the parcel referenced herein,that they are not licensed contractors and that they will be assuming the responsibility of the General Contractor for the proposed project. Signature: Date: ' GENERAL CONTRACTOR OR MANUFACTURED HOME INSTALLER: PHONE: FAX: 14 K Cans+roc-j--l o n ( c )3-79 96,3c, ( ) MAILING ADDRESS: Po. eox )'fl9 i r-I- /�Qd1 , Wq EMAIL: CONTRACTOR'S LICENSE 1 r 1 I► g43339 WAINS -- NUMBER: fl-Kconc-,l-gzzD 1 NUMBER ARCHITECT/ENGINEER: �UHGCK Desf '1'W PHONE (,�60 ) JB' 793 FAX. ( ) MAILING ADDRESS: 270? 4 Vc'.,e/6it;S$J, �J"mm4654040, EMAIL L`LGO4Z676C-&64/5 E.veel cern- Project Type: Frame Type: Bathrooms: Shoreline: Type of Sewage Disposal: ❑ New II Wood Existing: ❑ Sewer II Addition ❑ Steel Proposed: v_ Bank ❑ Community System • Alteration/Remodel ❑ Concrete Total: 2 Height: X Individual System n Repair ❑ Masonry A�4 SEP Permit# Demolition ❑ Other: Bedrooms: Water Supply: Existing: _ z_ Setback: I Private well ❑ Two Party Type of Heat: Proposed: _v' ❑ Public ale ?LP)c, Total: _ 2 �i! 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: 1 Underground Tank i Above ground Tank Size of Propane Tank: i Heat Stove 1 Cook Stove i Woodstove i Fireplace Insert i Hot Water Tank 1 Pellet Stove i Other Is this appliance being installed in a Manufactured/Mobile Home? Yes / No 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 72 EH Bld App Review: 512 ' #8 6 4 8 2>✓(°2 . 13 A - SSLQ 1 V.i L ,.L )— 2na Floor Heated Consistency Review: l -5-7 Other Heated Base fee: Mezzanine Additional Section: Heated Basement Plan Check fee: 133� Unheated Basement State Surcharge fee: Other Unheated Pot Water Review fee: (�� ; Garage/Carport SUBTOTAL `J�� Decks 911/Rd Approach fee: IC.k i ail IJ 1 Other "MC4/ .20 N.kjJ TOTAL: $ c��1. 3 Receipt Number: (11 `"I-..J Cash/Check Number: EST1 CT D-COST(R "" `ED) Date: /,/�� / C • r market value of all labor an. •; erials foundation to finish -4-- I d IS i 5 , ! Initials: G:\PermitCenter\###FORMS###\DRD FORMS\Master Permit Application 12-19-2006.doc ► • • HAYDEN STORMWATER MANAGEMENT & MITIGATIOAF ROVED STORMWATER PLAN MLA#: TBD Case#: TBD Parcel#: 821 083 007 J 3 0 203 Legal: Tax 41 Sec. 8, Twp.28 No., R. 1 East[less R/W easement] op 90 Coursey Lane, Port Ludlow, WA 98365 JEFFERS OUNTY DEPT.OF CO DEV •Pvik SIGNATUkkTh Property Owners: Nancy&Michael Hayden 90 Coursey Lane Port Ludlow, WA 95358 _ s� S �� DPI vti�-S kirk cit-kc-te Scope of Project The project is the demolition of an old single-story portion of the existing residence, and it's replacement' with the construction of a two-story addition to the existing residence. It is the owner's intent and responsibility to provide this plan for stormwater management on the subject site,during demolition,construction,and long-term systems maintenance. Soils Data Source of data is the Soil Survey of Jefferson County Area, Washington, U.S. Dept. of Agriculture, Soil Conservation Service, and 1975 septic tank and drainfield approved soil log. The principal soil type for the subject site is "Alderwood Series" [A1C]. Secondarily, there is an area identified as "Swantown" [StB] soil series. The soil is moderately well drained.The seasonal water table is greater than five [5] feet for this property. Permeability is moderately rapid at 2 to 6 inches per minute. Runoff is slow, and the hazard of water erosion is slight to moderate. Shrink-swell potential is low. Frost action potential is slight for this soil type. Project Overview 1. Describe the proposed developed conditions of the site. Indicate position and relative size of proposed improvements on the site map. • The project is to replace a failing portion of an existing home, demolishing a single story 576 square foot portion, and replacing it with a 864 square foot two-story addition as part of the single-family residence on a five-acre lot with an access road of"Coursey Lane"on the east boundary. The site structures and roadway impervious surface total falls within the 2,000 to 4,999 square foot of impervious surface requirements under the Washington State Stormwater Maociggrwnt Man r Western Washington as a "Medium"project. I to LI Existing Conditions Summary 0 8 - 0 1 5 fi 2. Describe the existing topography.Indicate contours on the site map. ((��nn ���J��{/ The residence and outbuildings site is essentially a flat landscape, then rises Siigitfp r y f 1��tstpCD where there is a small Type 5 stream traversing north to south between the two areas. 3. Describe the existing vegetation.Indicate native vegetation areas on the site map. The site is predominately third order growth, with a Douglas Fir, Cedar, Maple, and Alder trees within the subject site. First, second and third order vegetative under-story is present. Hayden Stormwater Mgmt Plan 3/28/2008 1 • e I ' 4. Describe the existing soils.Indicate soil type on the site map.II) The predominant soils consist of the Alderwood Gravely Sandy Loam[AI C]series with a smaller area of Swantown Gravelly Sandy Loam [StB] west of the existing residential site. The soil is moderately well drained The seasonal water table is greater than five [5] feet for this property. Permeability is moderately rapid at 2 to 6 inches per minute. Runoff is slow, and the hazard of water erosion is slight to moderate. Shrink-swell potential is low. Frost action potential does not normally exist for this soil type. 5. Describe the existing site hydrology (i.e., drainage; behavior of water on the site — above, below, and on the ground). Indicate existing storm water drainage to and from the site on the site map. Depict separate drainage basins on the site map,if applicable,and indicate acreage of each. Existing drainage is predominately through absorbtion and transpo-evaporation, as the residential site is predominately flat terrain, with grass ground cover. There are no off-site migrations onto the subject property. The west property hillside is separated from the flat residential portion of the site by a Type 5 stream. The proposed project has two[2]downspouts. The southeast corner of the proposed addition was found to be eligible for roof stormwater conveyance via downspout dispersion system and splash-block due to greater than the fifty[50]foot minimum vegetative flow path to the east property line. The second downspout on the southwest corner of the proposed addition is found to not be eligible for dispersion via splash-block However, this downspout is eligible for a dispersion system of an infiltration drywell. [See item 12. below] As no work is to take place in the existing remaining structure, the owner has the option to retrofit a drywell for that portion or continue the use of existing gutters, downspouts, and splash-bocks. Each of the two [2] downspouts proposed will serve 551 square feet of roof area, as depicted in the attached, roof stormwater conveyance plan on the Plot Plan submittal. 6. Describe any excess levels of noise generated by the proposed use or activity. The proposal is for the demolition of a portion of the existing residence, and the construction of single- family residence two-story addition, and only the typical accessory uses associated therewith. This property is a large parcel, which inherently provides large property setbacks. Coupled with the lack of populated properties in the area, excess noise is not a factor. 7. Describe significant geographic features and critical areas (i.e., environmentally sensitive areas such as wetlands,streams,steep slopes,etc.)on the site.Indicate location on the site map. The subject site contains a Type 5 stream that traverses from the north to the south of the subject site which is located approximately 50 feet to the west of the existing home. This stream separates the flat geography of the residential portion of the property on the east, and the hillside on the west. 8. Describe the general vicinity of the site,including adjacent land uses and structures, utilities, roads,and sensitive/critical areas(streams,wetlands,lakes,steep slopes,etc.). Adjacent properties consist of single-family residences nestled in amongst trees and served by a single gravel road, with utility services of power and telephone. No sensitive or critical areas have been determined for this immediateRVikt subjectstream noted in item 7. above, is a Type 5 designation. V E D APR 1 6 2008 Hayden Stormwater Mgmt Plan 3/28/2008 2 liCD • • Permanent Storm water Control Plan This portion of the Storm water Site Plan consists of the selection and installation of the appropriate storm water control BMP's and facilities to remain in place after construction of the project is completed. "Medium" size projects are required to have the totals calculated of all impervious surfaces, pollution- generating impervious surfaces, and pollution-generating pervious surfaces to verify that the thresholds for treatment facilities and flow control facilities are not exceeded. Please see Master Permit Application submittals for these calculations. 9. Describe the developed site hydrology, as proposed. Indicate whether storm water will be fully dispersed or, if not, what types of storm water flow control will be utilized for the site or specific threshold discharge areas within the site. Locate these facilities on the site plan and differentiate proposed facilities from existing facilities. The proposed residential addition has two [2] downspouts. The southeast corner of the proposed addition was found to be eligible for roof stormwater conveyance via downspout dispersion system and splash-block due to greater than the fifty[50]foot minimum vegetative flow path to the east property line, and drain]leld. The second downspout on the southwest corner of the proposed addition is found to not be eligible for dispersion via splash-block However, this downspout is eligible for a dispersion system of an infiltration drywell The proposed drywell will be constructed with the performance-based design from Chapter 3 "Flow Control Design" from Vol. III, Hydrologic Analysis, Flow Control BMP's, Figure3.4 "Typical Downspout Infiltration Drywell", copy attached. . [See item 12. below for the design details]. Each of the two [2]proposed downspouts will serve 472 square feet of roof area, as depicted in the attached, revised roof stormwater conveyance plan. 10. If the project requires the use of storm water treatment facilities, describe the types of storm water treatment facilities proposed for use on the site. Locate these facilities on the site plan and differentiate proposed facilities from existing facilities. [This is normally for large" projects or projects that involve the potential for dispersion of contaminants.] No storm water treatment is necessary for this project. 11. Describe the performance goals and standards applicable to the project. All storm water is managed so as to not create erosion or on-site/ off-site migration impacts, and definitely without migration to the Type 5 stream. 12. Describe the flow control system. The placement of the residence will provide channeled roof flow via downspouts with one splash-block on the southeast corner of the addition, and a single drywell for the southwest corner of the addition based upon the performance based design of Vol. III, Hydrologic Analysis, Flow Control BMP's, Figure3.4 "Typical Downspout Infiltration Drywell", copy attached. The infiltration system is designed to be at least 10 feet from any structure, property line, or identified sensitive area or steep slope. Hayden Stormwater Mgmt Plan 6/30/2008 3 • The infiltration system drywell will not be up gradient of the existing drainfield since the site topography is flat and essentially prohibits subsurface flows from intersecting the drainfield. The drywell bottom will be a minimum of one foot above the seasonal water table, since that table is greater than five[5]feet. The drywell is projected to be 48-inches in diameter and have a depth of five feet[four feet of gravel and 1 foot of suitable cover material]. Filter fabric [geo-textile] will be placed on top of the drain rock and on the drywell sides prior to backfilling. Conveyance piping from the downspout to the drywell will be the performance-based design from "Figure 3.4. "BMP. 13. Describe the water quality system. None is proposed or required of this proposal. 14. Describe the conveyance system analysis and design. The approved soil logs for the existing septic tank and drainfield installed in 1975 indicate a soil type that is a "gravelly loam" which supports the U.S. Dept. of Agriculture, Soil Conservation Service soil types. This allows for the performance-based design from Vol. III, Hydrologic Analysis, Flow Control BMP's, Figure3.4 "Typical Downspout Infiltration Drywell", copy attached. 15. Describe the source of fill material; physical characteristics of fill material,and deposition of excess material. House foundation excavation material will be primarily re-deposited around subject residence, and back- graded to form a slope away from the residence. It is estimated that 35 cubic yards will be excavated for the crawl area and foundation. Fill material would consist of topsoil to provide leveling for the yard and landscaping. 16. Proposed methods of placement and compaction consistent with the applicable standards in the International Residential Code,2006 Edition. Heavy machinery use will provide primary spreading and compaction, normally with the use of a backhoe. Foundation excavation could involve a bulldozer or excavator. 17. Describe the proposed surfacing material. Yard area around the house will be seeded with grass and contain traditional landscaping plantings. 18. Describe methods for restoration of the site. Reforestation is not required, as no `e .felled,cio,l?,e removed from the owner's property to site the new construction. ` �' L�J(,Jl `\/ r 6 2" kif E, cUAI COURIN 17^t Hayden Stormwater Mgmt Plan 3/10/2008 i 4 • • 19. An Operation and Maintenance Manual is required for each flow control and treatment facility. [This is normally required for "large" projects only and only those for which facilities are required to control flow or treat runoff.] If included,list the Manuals here. Not applicable for this proposal. 20. List here and include any special reports or studies conducted to prepare the Storm water Site Plan. Soil logs of record for applicant's septic tank and drainfield and reserve area. 21. List other necessary permits and approvals as required by other regulatory agencies. If those permits or approvals include conditions that affect the drainage plan or contain more restrictive drainage-related requirements,describe those conditions or restrictions here. MLA permit from Jefferson County Building Permit From Jefferson County CONSTRUCTION STORMWATER POLLUTION PREVENTION PLAN(SWPPP) The Construction SWPPP addresses sediment and erosion control during construction. The BMP's indicated by the applicant in the template that follows must be installed on the ground during all construction phases of the project. The proponent is responsible for preventing sediment and erosion impacts to environmentally sensitive areas and off-site areas. Consult the Construction Storm water Pollution Prevention (SWPP) Best Management Practices(BMP's)Packet for guidance, particularly with rural residential development. SECTION I-CONSTRUCTION SWPPP NARRATIVE 1. Construction Storm water Pollution Plan Elements. Describe how each of the Construction SWPPP elements has been or will be addressed. Identify the type and location of BMP's used to satisfy the required element. If an element is not applicable to the proposal,justification is provided. Required Elements-Construction SWPPP: a. Mark Clearing Limits. Minimize limit of land clearing to the residential site only, and marking [flagging] equipment operation zones. b. Establish Construction Access. Via the existing driveway, machinery will not require a formal construction access. Wash-down of vehicle tires on-site will further control such occurrence during wet days. c. Control Flow Rates. BMP C121 "Mulching" may be implemented to filter any and all downhill water flow, and thus stabilize the flow rate. d. Install Sediment Controls. While limiting the cleared area for'construction, the,applicgnt will install a silt fence at the west side of the construction site to protect the Class V stream during construction per BMP C233. Hayden Stormwater Mgmt Plan 3/10/2008 5 • • e. Stabilize Soils. The applicant proposes to use BMP C121 "Mulching" to stabilize exposed soils that are subject to erosion, where applicable, but mostly on the west side of the project. f. Protect Slopes. The subject property will not involve slopes, as the demolition and construction area is flat. g. Protect Drain Inlets. None required for this project. h. Stabilize Channels and Outlets. No temporary or permanent on-site channels or ditches exist or are to be created to control runoff. However, since the proposal consists of a crawl-area grade that is below the finished grade outside of the foundation, in the event of water retention, a small channel would be created during construction to allow drainage of the foundation excavation which will likely require the use of BMP C209 and mulching BMP C121 until foundation backfill is completed. i. Control Pollutants. No vehicle or machinery maintenance is to be allowed on-site over impervious surfaces, and contractor's equipment will be required to not exhibit hydraulic oil or fuel leakage prior to storage or use on the site. j. Control De-Watering (the act of pumping groundwater or storm water away from an active construction site). Since the proposal consists of a foundation "crawl"grade that is below the finished grade outside of the foundation, in the event of water retention, a small channel may be created during construction to allow drainage of the foundation excavation which will likely require the use of BMP C209 and mulching BMP C121 until foundation backfill is completed. k. Maintain Best Management Practices(BMP's). © The owner or owner representative is to supervise contractors to insure that BMP's are maintained co to their respective functional design. f ca o 1. Manage the Project. c:=, c= Construction is to be phased to prevent transport of water runoff or sediment, and limiting work '`r during wet conditions where there may be a negative impact. '"7 2. Adjacent Areas. a. Description of the adjacent areas that may be affected by site disturbance(e.g., streams, lakes, wetlands,residential areas,roads). None to be affected b. Description of the downstream drainage path leading from the site to the receiving body of water(minimum distance of 400 yards). Hayden Stormwater Mgmt Plan 3/10/2008 6 • • The proposed project will not result in or create off-site/downstream drainage paths. 3. Environmentally Sensitive Areas. a. Description of environmentally sensitive areas that are on or adjacent to the site. None known to applicant. b. Description of special requirements for working in or near environmentally sensitive areas. None required at this time. 4. Erosion Problem Areas. Description of potential erosion problems on site in the context of the characteristics of the on-site soils (e.g., erodibility, settle ability, permeability, depth, texture, soil structure). Analysis of soil characteristics and topography of this site coupled with the proposed project scope do not indicate any erosion problem potential. 5. Construction Phasing. a. Construction sequence The applicant is to mark clearing limit area, establish construction access,foundation excavation, install proposed BMP's per plan, construct project, and then implement the permanent plan. b. Construction phasing(if proposed) Project to be started and completed within six months. 6. Construction Schedule. Wet season is October 1 through April 30(page 2-21 of the Manual). a. Provide a proposed construction schedule. Begin project in Spring of 2008, and conclude by Fall of 2008 b. Wet Season Construction Activities. 1] Proposed wet season construction activities. None anticipated beyond attempting to keep materials dry, and reduce the incidence of mud. 2] Proposed wet season construction activities for environmentally sensitive areas. Not applicable for this proposal. 7. Financial/Ownership Responsibilities. a. Identify the property owner responsible for the initiation of bonds and/or other financial securities. The property owners of record. �� ' tid ;� .� tJ i3 it ii1 1 {Fl ltl !N 7 U Sj ll �f+ .',J Hayden Stormwater Mgmt Plan 3/10/2008 7 • • b. Describe bonds and/or other evidence of financial responsibility for liability associated with erosion and sedimentation impacts. The building permit process and site inspection sequence is to be conducted by Jefferson County, with back-up measures by the owner as part of owner's risk management for the project. 8. Engineering Calculations. Provide Design Calculations on a separate sheet for the following, if applicable. a. Sediment Ponds/Traps: Not applicable b. Diversions: Not applicable c. Waterways: Not applicable d. Runoff/Stormwater Detention Calculations: Not applicable SECTION II-EROSION AND SEDIMENT CONTROL PLAN Sediment and erosion control measures are depicted on the master land use application and building permit plot plan,a stormwater site plan,and/or a separate Construction SWPPP site plan. Stormwater Site Plan Chances Changes or revisions to the originally approved Stormwater Site Plan: any proposed revisions will be submitted to DCD prior to construction. The submittal shall include substitute pages that include all proposed changes, revised drawings showing any structural changes, and any other supporting information that explains and supports the reason for the change. Final Corrected Plan Submittal If the project were to include construction of conveyance systems, treatment facilities, flow control facilities, or structural source control BMPs [not standard on-site Stormwater management BMP's], the applicant will submit a final corrected plan ["as-builts"] when the project is completed. These would be engineering drawings [stamped by a licensed civil engineer] that accurately represent the project as constructed. APPLICANT SIGNATURE By signing this Construction SWPPP Plan, I/We as the applicant/owner[s] attest that the information provided herein is true and correct to the best of my/our knowledge.I/We also certify that this application is being made with the full knowledge and consent of all owners of the affected property. Nancy&/or Michael Hayden,Applicants/Owners [&DATE] a :6 Hayden Stormwater Mgmt Plan 3/10/2008 8 I j III 9' a;. - w -� - - _ _ l t il" 170 . \ ___; ,-:-- \ \\ ,, , % / �� A li- a. 2 * .\.. \A:/i' Y i Z �4ill -`� c 1C rri.‘r osi C7 < Z til -cr li ...-..„...... 0-1 ,Z-- S c i --Ak C— __________--" -- N '. 15- ®I \ �, a - r�s \ 1 4. z • i•s ,I. (\I, §- ... \ 1.-:--- \ % _ 7 1 /� , )P.1\\ �_, • ir. 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