HomeMy WebLinkAboutBLD2010-00228 THIS BUILDING IS NOT
FINAL ED .
PERMIT WAS CANCELLED
PRIOR TO RECEIVING ALL
INSPECTIONS AND HAS NOT
BEEN ISSUED A CERTIFICATE
OF OCCUPANCY .
Ordinance No. 12-1203-12.
"Pursuant to this Ordinance, effective January 1, 2013, if your permit is less than five years old, additional renewals may
be approved at the current annual renewal rate. If your permit is older than five years from the date of issuance, in order
to be considered for an extension, you must submit a request in writing to the building official and must provide a
justifiable cause for an extension. Payment of all accrued renewal fees is required prior to approval of an extension."
R105.5 Expiration.
Every permit issued shall become invalid unless the work authorized by such permit is commenced within 180
days after its issuance, or if the work authorized by such permit is suspended or abandoned for a period of 180
days after the time the work is commenced. The building official is authorized to grant, in writing, one or more
extensions of time, for periods not more than 180 days each. The extension shall be requested in writing and
justifiable cause demonstrated.
R105.6 Suspension or revocation.
The building official is authorized to suspend or revoke a permit issued under the provisions of this code
wherever the permit is issued in error or on the basis of incorrect, inaccurate or incomplete information. or in
violation of any ordinance or regulation or any of the provisions of this code.
• BUILDING PERMIT APPLILION MRLA eve0 Typ176
e: I
Jefferson County Department of Community Development
621 Sheridan Street Port Townsend, WA 98368
PERMIT #: BLD10-00228 Received Date: 6/28/2010
SITE ADDRESS: 211 PLEASANT HARBOR RD
BRINNON, 98320
OWNER: GAZINTA LLC TRUSTEE PHONE: 360-796-9914
C GREEN TRUST
PO BOX 749
BRINNON WA 98320-0749
SUBDIVISION: Block: Lot: T 79+
PARCEL NUMBER: 502104052 Section: 10 Township: 25 N Range: 02 W
CONTRACTOR: OWNER/BUILDER PHONE:
REPRESENTATIVE: PHONE:
PROJECT DESCRIPTIOI NSFR W/ATT CARPORT
TYPE OF WORK RES SQUARE FOOTAGE:
TYPE OF IMP NEW MAIN: 1,189
VALUATION 321,586.00 ADD'L: 572 HEAT TYPE: EEE
CODE EDITION: 2006 HEAT BASE: 1,127 HEAT TYPE:
OCCUPANCY: R-3 UNHEATED: #OF STORIES:
OCCUPANCY:
OTHER:
CONST TYPE: 5N SHORELINE:
GARAGE: 520
CONST TYPE: SETBACK:
DECK: 855
BANK HEIGHT:
SEWAGE DISPOSAL: ALT
WATER SYSTEM: PWELL
BEDROOMS: BATHROOMS:
Exist: 0 Exist: 0
Prop: 4 Prop: 4
Total: 4 Total:
Routing Date: --
Type Amount-Paid By: Date: Receipt: Approved/Date
Permit $2,236.95 LYK 06/28/10 117911
Plan Check $1,454.02 LYK 06/28/10 117911 APPROVED
State Building Code $4.50 LYK 06/28/10 117911
Potable Water Application $98.00 LYK 06/28/10 117911 00v 1
2010
Total: $3,793.47 Jefferson Goun
ty PIannine
& Building Department
Jefferson County Building Dion Permit Nun.: BLD10-00228
Applicant: GAZINTA LLC TRUSTEE
BUILDING PERMIT INSPECTION APPROVALS applicable 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 Minimum setback from Pleasant Harbor Road edge of the asphalt
driving surface shall be 10 feet or 8 feet from gravel shoulder.
Minimum setback from SR 101 shall be 50 feet. Minimum side yard
setbacks shall be 5 feet. Minimum setback from top of shoreline bank
shall be 30 feet.
Erosion Control ENGINEERED-NEEDS SWT CERTIFICATION PRIOR TO FINAL
(SEE CONDITION 1)
Foundation Footing
Footing Drains
Foundation Stem Wall
Underground Plumbing
Under Floor Framing
Straps(hold downs)
Ext. Shear Wall Nailing
Rough-in Plumbing
Framing
Blocking
Airseal
Insulation:Walls
Insulation: Floors
Insulation: Ceiling
Int. Shear Wall Nailing
Wallboard Nailing
Gas Line: Interior
Gas Line: Exterior
Propane Tank
Heat/Chimney Clearance
Drywell/Alt Drainage SEE CONDITIONS 2&3 (ENGINEERED-NEEDS SWT
CERTIFICATION PRIOR TO FINAL (SEE CONDITION 1)
Address Posted
Jew- ( T rl iat 1- ) �1
FINAL INSPECTION
FINAL INSPECTION MUST BE APPROVED PRIOR TO BUILDING BEING OCCUPIED
THIS PERMIT IS VALID FOR ONE YEAR
• .
CONDITIONS for Building Permit# :BLD10-00228
1.) PRIOR TO FINAL BUILDING OCCUPANCY, PROPONENT SHALL SUBMIT A WRITTEN
LETTER FROM MICHAEL J. ANDERSON, P.E. STATING THAT THE STORMWATER
FACILITY HAS BEEN CONSTRUCTED IN ACCORDANCE WITH THE REQUIREMENTS
OF THE "STORMWATER REPORT" DATED JUNE 28, 2010 AS SIGNED BY MICHAEL
J. ANDERSON. P.E.
2.) A SILT FENCE SHALL BE INSTALLED A MINIMUM OF 30 FEET LANDWARD OF THE
LANDSLIDE HAZARD AREA BUFFER PRIOR TO ANY LAND DISTURBING ACTIVITY.
APPLICANT/CONTRACTOR SHALL BE RESPONSIBLE TO MAKE SURE THAT SILT
DOES NOT FLOW OFF SITE OR OVER THE SHORELINE BANK.
THE MINIMUM HEIGHT OF THE TOP OF SILT FENCE SHALL BE 2 FEET AND THE
MAXIMUM HEIGHT SHALL BE 2 1/2 FEET ABOVE THE ORIGINAL GROUND
SURFACE.
THE SILT FENCE SHALL BE BURIED IN A TRENCH TO A MINIMUM DEPTH OF 5
INCHES BELOW THE GROUND SURFACE. THE TRENCH SHALL BE BACKFILLED
AND THE SOIL TAMPED IN PLACE OVER THE BURIED PORTION OF THE SILT
FENCE, SUCH THAT NO FLOW CAN PASS BENEATH THE FENCE AND SCOURING
CAN NOT OCCUR.
ANY DAMAGE TO THE SILT FENCE SHALL BE REPAIRED IMMEDIATELY.
SEDIMENT DEPOSITS SHALL EITHER BE REMOVED WHEN THE DEPOSIT
REACHES APPROXIMATELY ONE-THIRD THE HEIGHT OF THE SILT FENCE, OR A
SECOND SILT FENCE SHALL BE INSTALLED.
3.) 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.
THE ENTRANCE SHALL BE CONSTRUCTED ON A FIRM COMPACTED SUBGRADE.
QUARRY SPALLS (OR HOG FUEL) SHALL BE ADDED IF THE PAD IS NO LONGER IN
ACCORDANCE WITH THE SPECIFICATIONS. (BMP C105, 2005 DOE STORMWATER
MANUAL).
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 STIE.
ANY QUARRY SPALLS THAT ARE LOOSENED FROM THE PAD, WHICH END UP ON
THE ROADWAY SHALL BE REMOVED IMMEDIATELY.
UPON PROJECT COMPLETION AND SITE STABILIZATION, ALL CONSTRUCTION
ACCESSES INTENDED AS PERMANENT ACCESS FOR MAINTENANCE SHALL BE
PERMANENTLY STABILIZED.
4.) Evidence suggests that the bluff area related to the parcel in question is subject to erosion
and mass wasting. Vigilant maintenance of the stormwater runoff tightline to the beach is
important to avoid a negative contribution to bluff instability.
5.) The stormwater tightline shall dissapate above the Ordinary High Water Mark (OHWM) or
SEPA review is required by Jefferson County.
6.) Stormwater runoff tightline piping can be subject to weakening through ultraviolet radiation
exposure and mechanical damage due to trees, rocks and debris. A more durable
material for the tightline will provide greater defense against the elements.
7.) The applicant/owner and all futur•vners are responsible for maintaining and•tecting
the stormwater runoff tightline to the beach against damage due to normal wear, weather
exposure, and/or trees, rocks and debris. If and when damage occurs to the tightline that
renders it ineffective, the responsible party must execute the necessary repairs as soon
as possible and no longer than 30 days.
8.) The stormwater runoff tightline piping must be composed of durable material that is
resistant to weakening and damage due to time, weather exposure (including ultraviolet
radiation), and impacts from trees, rocks and debris. The corrugated plastic material used
for tightline construction in the past is no longer acceptable. More durable plastic or
ultraviolet radiation-resistant flexible rubber material shall be required.
9.) The stormwater runoff tightline shall be designed and placed in order to minimize visual
impacts to users of the beach and nearby waters.
10.) Maintaining ground cover will help reduce erosion from surface runoff. Any bare areas
that develop should be revegetated. Native low growing vegetation that requires little or
no irrigation would be the most beneficial
11.) Tree limbs, lawn clippings, etc. should not be thrown over the bluff because these piles
have a tendency to damage/kill the underlying vegetation which in turn increases the
erosion potential of the bluff soils. These piles also add unnecessary weight to the bluff
soils, especially when saturated with water.
12.) Silt fences or other sediment control devices may be needed during construction such that
sedimentation off site does not significantly exceed predevelopment conditions. Standard
erosion control best management practices (BMP's) should be utilized as necessary to
prevent erosion and off-site runoff. Temporary stabilization might include silt fences
and/or hay bails or straw waddles staked with rebar. Permanent stabilization might
include replanting, mulching or gravel.
13.) Final approval from public works on road crossing permit UTL10-20 is required prior to
building final.
14.) Residential developers and individual builders shall be required to preserve shoreline
vegetation and reduce the associated risk of erosion during construction and any future
activity which may impact the stability of the shoreline.
15.) To help prevent seawater from intruding landward into underground aquifers, all new
development activity on Marrowstone Island, Indian Island and within 1/4 mile of any
marine shoreline shall be required to infiltrate all stormwater runoff onsite.
16.) VOLUNTARY MEASURES OF COASTAL &AT RISK SIPZ:
Water conservation measures:
1. Roof and other intercepted precipitation shall be routed to on-site detention ponds
and/or other approved means and allowed to be released to the soil slowly.
2. Water collected from Storm water and roof catchments may be used for watering
lawns and gardens. Unless catchment water has been treated to meet drinking water
standards, there shall be no cross connections allowed between the potable supply and
impounded water.
3. Water withdrawn from wells on each property shall not be used for watering of lawns
and/or gardens.
4. Ground water withdrawn from each property shall be restricted to a rate of three (3)
gallons per minute.
5. Installation of water conserving fixtures such as low flow toilets, faucets and shower
restrictors and other water saving plumbing fixtures.
6. Landscaping plan (xeriscaping, native vegetation with minimal amounts of irrigation).
Please NOTE that the above listed measures are not intended to be exhaustive, but rather
is intended to be illustrative of the types of water conservation measures.
17.) VOLUNTARY MEASURES OF *TAL &AT RISK SIPZ: •
1. Installation of a flow meter.
2. On-going well monitoring for chloride concentration.
3. Submittal of monitoring data to County.
18.) MANDATORY MEASURES FOR COASTAL SIPZ:
1. For proof of potable water on a building permit application, applicant must utilize
DOH-approved public water system if available.
2. If public water is unavailable, a qualifying alternative system may be used as proof of
potable water or an individual well may be used as proof of potable water subject to the
following requirement:
a. Chloride concentration of a laboratory-certified well water sample submitted with
building permit application.
3. If public water is unavailable, a qualifying alternative system may be used as proof of
potable water.
19.) The property owner shall comply with Water Conservation Measures (per list maintained
by the UDC Administrator).
20.) A vegetative buffer of 30-feet shall be permanently maintained from the top or edge of the
Landslide Hazard Area. All buffers shall be measured perpendicularly from the top of the
Landslide Hazard Area.
21.) A Geotechnical Report was submitted in conjunction with the SPAAD (ZON07-00049)
application. The report addressed the stability of the geologic hazard area. A building
setback of 30-feet shall be measured perpendicularly from the top or toe of the geologic
hazard to the proposed single family residential development including septic system
drainfields.
22.) 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.
23.) Prior to and during approved construction activities, the perimeter of the landslide hazard
area buffer shall be marked with a temporary sign. The sign shall be placed in such a
manner that it can be directly observed from the construction area. The sign shall contain
the following statement: "Landslide Hazard Area and Buffer- Do not Remove or Alter
Existing Vegetation."
24.) All construction activities shall not encroach upon the Landslide Hazard Vegetative buffer.
This includes the storage or preparation of materials.
25.) 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.
26.) 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.
27.) A Stormwater Report(prepared by Michael J. Anderson, P.E.) 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.
28.) Outdoor residential storage shall be maintained in an orderly manner and shall create no
fire, safety, health or sanitary hazard.
•
29.) 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 automobile 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 requirements 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.
30.) A minimum of two (2) on-site parking spaces shall be provided for the single family
residence.
31.) This parcel is within the Brinnon-Black Point no shooting area per JCC 8.50.
32.) The road approach permit(RAP07-00125) must be inspected and finaled by the Jefferson
County Department of Public Works prior to the final inspection/certificate of occupancy of
this residence. Contact Terry Duff, Department of Public Works at 360-385-9159 for the
final road approach inspection.
33.) Maximum lot coverage is not to exceed 25%. Lot coverage is defined as amount of
impervious surface which includes roof tops, driveways, concrete, etc.
34.) The building height is not to exceed 35 feet.
35.) Minimum setback from Pleasant Harbor Road edge of the asphalt driving surface shall be
10 feet or 8 feet from gravel shoulder. Minimum setback from SR 101 shall be 50 feet.
Minimum side yard setbacks shall be 5 feet. Minimum setback from top of shoreline bank
shall be 30 feet.
36.) 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.
37.) 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.
38.) Applicant shall acknowledge that the septic permit design (SEP10-0030) has decreased
the SPAAD approved buildable area located on the west side of Pleasant Harbor Road
where the primary and reserve drainfield areas are now proposed as a part of this septic
permit.
39.) Applicant and/or installer shall comply with all conditions as set forth in the approved
septic permit(SEP10-00030).
� `o` `4 JEFFER COUNTY
W ��� DEPARTM OF COMMUNITY DEVELOPMENT •
'' - 621 Sheridan Street• Port Townsend • Washington 98368
360/379-4450 • 360/379-4451 Fax
p' www.co.jefferson.wa.us/commdevelopment
HIN 1 r ^
Master Permit Application MLA: 0 - �,-(P
Project Description(include separate sheets as necessary):COnStrUCt Primary Residence w Carport
Tax Parcel Property
Number: 502104052 Size: 2.13 (acres/square feet)
Site Address and/or Directions to Property:211 Pleasant Harbor Rd, Brinnon, WA 98320 - S on Highway 101 to
Pleasant Harbor Rd, Turn left, turn right at T.
Property Owner(s)of Record:C. Green Trust, Gazinta, LLC Trustee
Telephone:360-796-9914 Fax: email:jksailing@gmail.com
Mailing Address: P 0 Box 749, Brinnon, WA 98320
Applicant/Agent(if different from owner): Gazinta, LLC, K. Brace Manager
Telephone:360-796-9914 Fax: email:jksailing@gmail.com
Mailing Address: P 0 Box 749 Brinnon, WA 98320
What kind of Permit?(Check each box that applies
VIBuilding C/1 'O11, 0 Variance(Minor, Major or Reasonable Economic Use)
O Demolition Permit • 0 Conditional Use[C(a), C(d),or, j * 2 6. 2010
O Single Family Garage •.s- . /Detached 0 Discretionary"D"or Unnamed Use Classification
❑ Manufactured Home ❑ 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**
O Home Business 0 Cottagelndustry 0 Long Plat**
❑ Propane 0 Planned Rural Residential Development(PRRD)/Amendments**
❑ Sign 0 Plat Vacation/Alteration**
0 Allowed"Yes"Use Consistency Analysis 0 Shoreline Master Program Exemption/Permit Revisions**
❑ Stormwater Management 0 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
O 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 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 inspections. Staffs access and right of entry will be assumed unless the applicant informs the County in writing at the
time of the app.c tion that air she nts prior notice. "/f/9////57 e��� >r)
Signature:t --- �o/�Z/i—�� �-�� 'bate: U/Z�/(/
The action or actions Appl ant 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-tran ble re sibili r adhering to and complying with the ESA. The Applicant has read this syaim r and sign and dates it below.
Signatu e• �t�� Date: . 7//
C:\Documents and Settings\caral\Local Settings\Temporary Internet Files\OLK86\Master Permit Application 12-19-2006.doc
BUILDER STATEMENT
The signer of this statement does hereby certify t la they are the Owners of the parcel referenced herein,t ihey are not licensed contractors and that
they :,..ill be 'uming th pons ility of the Genq�f �pn c r r 1J�proposed project p�
!�'''/{• � 1/• ate: l / / _,
Signatu ��7 ,
GENERAL CONTRACT OR MANUFACTURED HOME INSTALLER: PHONE: FAX:
( ) ( )
MAILING ADDRESS: EMAIL:
CONTRACTOR'S LICENSE WAINS
NUMBER: NUMBER
ARCHITECT/ENGINEER: PHONE ( ) FAX:( )
MAILING ADDRESS: EMAIL
P5ojeey pe: Fjame1Y e) Bathrooms: Shoreline: Type of Sewage Disposal:
NJJDInod- Existing: 0 Sewer
Addition Steel Proposed: 4 Bank Community System
Alteration/Remodel Concrete Total: Heinhtr Individual S
Repair Masonry i `i,
Demolition Other: Bedrooms: SEP Permit# '
1 O-000aD
Water •• :
Existing: - 116)_ Setback: ��� Two Party
e of Hea Proposed: f • o
ioPced airt: Total: _ Name of System:
If this is a Commercial Projectyouu 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:
❑Underground Tank °Above ground Tank Size of Propane•Tank:
❑Heat Stove ❑Cook Stove 0 Woodstove ❑ Fireplace Insert 0 Hot Water T k 0 Pellet Stove 0 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 subml -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 1189 EH Bld App Review:
- 2ntl Floor Heated 572 sjtc(y v Consistency Review: I
Other Heated Base fee: ,
Mezzanine nal-Se
.b� x� \ phe App die_L:
Heated Basemen} I I,,� t l 1 - I(,,�J Plan Check fee: 5 0 2
Unheated Basement State Surcharge fee: tC30
Other Unheated Pot Water Review fee: l
Garage/Carport 520 I'35c46 SUBTOTAL / 4 1
Decks 855 2_22-7Z 75 911/Rd Approach fee: n r X r I2
Other TOTAL: $/.� \ i7 41
C. .5z1.3744, -
Receipt Number: I 110 I
1189 -•— Cash/Check Number: -/
IC+c f
ESTIMATED COST(REQUIRED) Date:
•Fair market value of all labor and materials foundation to finish \ ITT --
irfil �) (;)0
j i l Initials:
6
C:\Documents and Settings\carat\Local Settings\Temporary Internet Files\OLK86\Master Permit Application 12-19-2006.doc
0 •
STORMWATER REPORT
GAZINTA LLC TRUSTEE
RESIDENCE
PARCEL NO. 502 104 052
#211 PLEASANT HARBOR ROAD
BRINNON, WA 98320
JUN 2 8 2010
P� JqNO� of WAs
� . ._t..ti,z niIV� yy �
0S7
7 71 e 6-t. % -. i 1, ---____—
.02\o,_ v�
EXP. DATE: 05 / 05 / 12 APPROVED
STORMWATER PLAN
Stor�`�at. .W�, OCT 2 8 2010
Requir
JEFFERS T
Prepared by DEPT.OFMeV` TY • 1.0 ME. T
SIGNATliRE H J�
Michael J.Anderson
PE& PLS No. 27665
330 Cleveland Street
Port Townsend, WA 908368
•
STORMWATER REPORT
GAZINTA LLC TRUSTEE
RESIDENCE
PROJECT LOCATION
The project is located adjacent to Pleasant Harbor at # 211 Pleasant Harbor Road
and is also known as APN 502 104 052 located in Section 10, T25N, R2W, W.M.
The site is characterized with a rural setting in a predominately single residential
neighborhood. The project consists of a new single family residence and an ADU on
a single site bounded on the west by U.S Highway 101.
This stormwater management plan will examine the hydrology and changes to the
stormwater runoff due to the proposed construction of the residence, the ADU and
the driveway construction. All proposed drainage improvements shall be consistent
with the design standards of Jefferson County and the "Stormwater Management
Manual for Western Washington" 2005 (DOE SMM).
PRE-DEVELOPMENT SITE CONDITIONS
The project site currently is un-developed except for a gravel driveway connecting
to Pleasant Harbor Road to serve a small site that is a seasonal recreation retreat.
The lot is presently un-improved and the ground cover consists of native grasses
and brush. Utilizing the "USDA Soil Conservation Service — Jefferson County
Area" as a resource, the soil is characterized as Hoodsport (HoD) and described as a
very gravelly sandy loam. The topography as shown on the site plan has been
drawn utilizing the data from the Jefferson County website and shows the typical
land formation which slopes towards the top of the bluff adjacent to Puget Sound.
DOWNSTREAM ANALYSIS
The downstream storm drain system consists of the Puget Sound and represents a
receiving body as defined by typical drainage basin topographic features. The
requirement of an analysis of a quarter of mile downstream is not applicable to this
site.
Page 2 of 7
• •
PROPOSED SITE DEVELOPMENT
The private property site is to be developed with a new residence and ADU under
separate permits. The impervious areas have been calculated and are summarized as
follows:
Site development area 92651 sft ..... 2.13 Ac.
Proposed residence 1716 sft .... 0.039 Ac.
Proposed ADU 1030 sft .... 0.024 Ac.
Proposed driveways.....
Residence... 1426 sft
ADU .... 1250 sft
Subtotal 2676 sft ..... 0.061 Ac.
Roof areas:
Residence 2137 sft
ADU 1190 sft
Subtotal 3327 sft ..... 0.0764 Ac.
Total Impervious 6003 sft . 0.134 Ac.
Total Impervious Percentage 6.8 %
In response to the site conditions noted on the Jefferson County website, a
geotechnical report was prepared by NTI Engineering & Surveying company by
Mr. Bill Payton, L.E.G, dated October 10, 2007. In the report, reference is made to
the drainage of the site and the suggested disposal of off-site drainage to the edge of
the bay. The proposed stormwater improvements will direct the flow away from the
new residential construction toward the natural flow pattern crossing the property.
PROPOSED STORMWATER IMPROVEMENTS
The primary goal of the State DOE Stormwater Manual for Western Washington is
to protect the streams of the State and the Puget Sound. To comply with that goal,
the Manual prescribes the treatment of runoff and the infiltration of the treated
runoff into the soil to refurbish the ground water that the impervious areas have
detracted. It is anticipated that the surface flow along the landscaped grassy areas
adjacent to the new residence and the sheet flow from the ADU construction will
provide the necessary treatment prior to the flow connecting to the existing natural
swales crossing the property.
The run-off from the new driveway construction will be captured by a pervious
Page 3 of 7
• •
pavement area at the low point of the driveways and infiltrated into the top soil.
Attached are calculations that indicate an area combined for 400 square feet will be
sufficient. An area of 200 square feet is being provided at the end of the driveways
to capture the runoff from the driveways at each location.
In addition to the pervious pavement areas, the roof water from the residence will be
directed to the runoff swale that crosses the property. The additional flow is minor
in comparison to the runoff from the property to the west and will not unduly affect
the flow and its connection to the Hood Canal.
A culvert will be provided for the ADU driveway so that the roadway ditch in
Pleasant Harbor Road will continue to flow the runoff swale shown. The culvert that
crosses Pleasant Harbor Road will be extended beyond the new driveway to the
main residence within the bed of the existing natural swale.
PROPOSED STORMWATER FACILITIES
The proposed culvert crossing the new driveway is the primary new stormwater
facility for the project.
HYDROLOGICAL ANALYSIS
The gravel sub-base for the pervious pavement was verified in accordance with the
WWHM3 computer system that is prescribed by the State DOE. Please see attached
calculation report.
EROSION AND SEDIMENTATION IMPACTS
The State 2005 DOE Manual specifies that each stormwater plan shall provide for
the following elements:
SECTION 2. 5. 1 MINIMUM REQUIREMENT #1 : PREPARATION OF STORMWATER
SITE PLAN
Please see attached site plan entitled "DRAINAGE SITE PLAN"
dated June 25, 2010 .
SECTION 2.5.2 MINIMUM REQUIREMENT #2 : CONSTRUCTION STORMWATER
POLLUTION PREVENTION (SWPP)
All new development and redevelopment shall comply with
Page 4 of 7
Construction SWPP Elements #1 through #12 below:
Element 1: Mark Clearing Limits
The clearing limits will be the minimum required to
construct the on-site driveway that provides access to the
proposed residence and ADU.
Element 2: Establish Construction Access
A construction access will be established at each new
driveway location at the existing gravel road at Pleasant
Harbor Road. The installation of quarry spalls to minimize
tracking sediments will be utilized as shown per the detail
shown on Sheet 2 of the plans.
Element 3: Control Flow Rates
The storm water will be draining directly to a "receiving
body" consisting of a bay of the Puget Sound and the flow
rate is not a problem.
Element 4: Install Sediment Controls
A silt fence will be set in place along the perimeter of the
new construction along the downstream edge of the work prior
to the start of any construction to prevent siltation.
Element 5: Stabilize Soils
At the completion of the site grading for the building pads
and subgrade for the paving areas, the areas disturbed by
the new construction will be seeded and maintained during
the remainder of the construction period. Upon completion
of the driveway and single family residential construction,
the final landscaping of the site will be installed to
stabilize the soils .
As required by the SMM, from October 1 through April 30, no
soils shall remain exposed and unworked for more than 2
days . From May 1 to September 30, no soils shall remain
exposed and unworked for more than 7 days . The soils will
be temporary seeded or protected with plastic covering.
Element 6: Protect Slopes
All slope areas will be made at a maximum slope of 3: 1 and
Page 5 of 7
411
•
protected with hay and plastic coverings as required.
Permanent landscaping will be installed at completion of
construction.
Element 7: Protect Drain Inlets
Any new catch basin will be protected with hay bales during
construction in accordance with the detail on Sheet 2 .
Element 8: Stabilize Channels and Outlets
The site drainage does not affect any channels or outlets .
Element 9: Control Pollutants
As required by the SMM, all pollutants, including waste
materials and demolition debris that occur on-site during
construction shall be handled and disposed of in a manner
that does not cause contamination of storm water.
Maintenance and repair of heavy equipment and vehicles
involving oil changes and other maintenance work shall be
conducted using spill prevention measures such as drip pans .
Wheel wash or tire bath wastewater shall be discharged to a
separate on-site treatment system.
Element 10: Control De-watering
No de-watering is anticipated with this project .
Element 11: Maintain BMPs
All temporary and permanent erosion and sediment control
BMPs shall be maintained and repaired as needed to assure
continued performance of their intended function. All
maintenance and repair shall be conducted in accordance with
the Jefferson County Stormwater Standards and the
requirements of the State SMM.
Sediment control BMPs shall be inspected weekly or after a
runoff-producing storm event during the dry season and daily
during the wet season.
All temporary erosion and sediment control BMPs shall be
Page 6 of 7
Q • ••
••iiii
o r,, •••••••
a Cn
wn cwn v Ncr) co cn I - I o
O
coo ,� -' r7 O, CO O co I - O C ,..•. ,..`::::: N
^ `)
c� c co n° S C rC.0 ,k N
v..,
•
o
up z
/ 1
n' dam- w0 N cn C w h
"�\ �J W is ., ,J x
I— w ro Uj CD = Q > Q A Q I/
—Cl_ Cl) "'� o Q w O ,,, L� (/) ' of w 0_ I
�j o c� C)Lo z z o > c� °� z w co w Q
w .2 v I— O a, ¢ 0 Cl) a I w o ¢ Z w ¢ J CC _ z Q
n o - ,_ n, J v .- C) < CC ¢ _, rl w ¢ w _, w v c°nincnva_ � L'i
Q rn I o •hQ- x z0 r-1 ~ w w O w w cC C)
O t` Ln O z m z --I
(n z z z z C) HO D ,?
L1�C
E
a
0
a
80 70 a/ (�
• 60 50 30 �i
X , 2 (lam
N 89°52'39" E / 253.68' tzt. ' /
i
/ o + U
Q,
Existi/ i r 1 / / / Q
9 1 g' , I ' / /'
r' W a I Q
Calve.,f,. i 7 1,Q Q J r ~
_ 0 -7 / /
1---1 O
/ i Existing 12" Z /,L:bo0r
I c LD�
i `
/ i
�'J J fr.L4J—I / : a
II Covered/ fr Q r o
ti
+ / Carport/ t�
.__, _ / ct
/ 71/1.r.. - , /- / v
i 1 b
, / CO / 0
/ ---, III ; 4'ir „
^ / / ' O
._._.
• / ; (\//
�'. •
L
I
/ /� w /
I s a I
-f Q J I Ct \ I ili\--
/
/
' i
•-Y, � J I
Li 1 L:5, , / ..- I ,..„°-..4 7 // ' P 0 ',' 'C' t . T ,
N Of'Y (.._) i _____ . -:
0
(-/) i 7 / . , ,
! e7 -
o / /
O L. 1r t: i , I/. -
: / __00 _c)
1. , -_ _.1,
, . 1
/ _
,0
+
0)
O
0
krsfi fc/ qQ0r7 ._ _ , 1 �r cic>
c2) . .i_LJ::::: ._... .),...i_i___L,..,,,--::/
. 00
ti _,.;
,
Or ,,:o
r9 1g' O y a)
Cu/vet I i j/ 5
I oQ o/
/ I a1 � U E ti°r'I ' o ,Z
,' DI..'.:�'I('II�i �''I•�1 �� (1.)/'� 1---. 0 /
+ N ft'.� __, 0 f
/ -0
, 11 r : ( i
100%'Reserve Drainfiel. 4 ►• (7/ i-L,, • /
• o a I z
o
/ c, ,,L
LuLL.,
coL,__
7 ,, / / ci_ _,
r w Lv
// / I,J L"
>2500sf �� w
/ / ' 0_ 3o
g
i (/)
/ O
• ,fif
1 , /
.‹
�� i , , L,N 89°27'29" W 272.93' \ Qm0 w��0 .1 20 1 =/ i/
AA
V.
m z _
ip-----, .itt.at listinver
70 n n �
D N
a N "Y.'
Z ..
\
ir * 11 ,
cn
m �7 ro ) I � r �� K Q
Q z ---1z to m _,,,, ° 5-` I O ♦1� •�� 0) K
to r I-1 ,1 i r• —�b� _
93
•
70-
Ile.
P.w'° ''I`i �'�
o v I-' o ,m = d I
co
• • • • •0 •j I ,i� -Iii: 4Loti14.
oo
111.
r ,}� �•VARIES ,{ �1. ApA dry
o N A O AS PER L°ADINC I I
y = O pp A o O REDVIREMNETS N m ➢ C) A 7
in V) 0 m ➢n 07 D AK 0 OZ��� z �� m D y p Z Z (n
D ➢cn y,O --1 D p.-. 1 u)o m D m --� D P1
A rn 0 NK-0� .m m CnO C� �O Z h n Z O Z r fl
D p O m n D I D S O m o rn o q 3 n m� z Z A O D u) 0
ZO O D��r<rlD�) Z m Ate - 00 ➢ -i D 11 m CO
G� D A N < -'N COD o co � = ZO�n „� O m rn m = _ al m n
<• onoorn w r m z r.)OD �tn C m0,0m mm rnK D N {� D I A-) Z I >
f wxoro InD COp O r„X m ''T A _I
I I O O �1 TI --{ N- In In (7 0 I
p N(ANri` y -< r r�i'� "1O G� CO �N Z O r,--, T. O Na t0 O
�5.wow?o m rZD Op zt mD .� D --! p7W -1 TO C o� NOS uI ZZ
o N.w O w m C D -<V) 0 z I r CO > > U) T. p -1 N (7
�mmr,',,_0, C N �D o ZZONO� O yg r0 o Fri N ImJI 00� z �00. z �X (n
�mwp�N m � A� 1 0 --40 Z Z 7/ -Z-!O C' �'D > x
�_ pD-- 2ZN N�nO�) c7 mZ O m� D �� �7 N N •
N M07 OO) mto 2�°D m DC� O Zm Z7 Ufn OOO
La ro 'v O m ry m fn 01 pi(�r Fri I
O NCCo O
Neu 0 n� in o Z x
w O Z co -1 p Z I `-�N
w m rn <0 O vi
Cn
CO O m
D U C7
W C
m D m
Z
2
D
TO
D
TO
• ar-r? b CO o
•
ua c
UE
o03
—7—_ cu y
-n ^I 7 , - "-' In
e
CO
D I LS 11 14 .r i°i. t�°ON
D v 1 c cD 0��p02�0 ;."AV
O / c� ♦ • 02 O V ,o 8'e
ra 3 `0 W �o.,.oe/ OW
n " I. �+
O yy���
- 0
1 r°
ir x
,,r
I—,
1_, 11
N
_ =no ;�
!- � *A *N *o
--
•:::} • -= I- O °U m n I I— CYI coo oA Z ::pti::::::::?y � ��m
•
•
•
•
•
•
•
•
•
Fri I
MI
1--I D n 'I cam? u N rNi --I •.
n-0
Fin•-• g„!---8 g-g, \ i /
+
VI "' / / :::•I
I#' I. o
f ' f 1:I:I n m :: '•
/v 'O 1 ' '� TI o-A_/ '...i;.iii;*iiiii;*Iiiii;#-- •
' E.
lull! Illi! lilli �` m { n
/V U 1 z WILL • �.I..�1lILi._ w:u. .ww CD A
Z �` D o m
r� mr_
_ Q I 0 g — Zz�
I!!I!i II!flll II!tli IIIII N
munu...f . _.. .._. F¢
ttaE ....mill.,,,,,..,,,,
um
In ulu e,
mil :1E!II'�'�' win
iiil! MP "� " 111111
Iii.
• •
ATTACHMENT II
CALCULATIONS
Western Washington drology Model •
PROJECT PORT
Project Name: default
Site Address: 211 PLEASANT RD
City BRINNON
Report Date : 6/28/2010
Gage Quilcene
Data Start 1948/10/01
Data End 1993/09/30
Precip Scale: 1.33
WWHM3 Version:
PREDEVELOPED LAND USE
Name Basin 1
Bypass: No
GroundWater: No
Pervious Land Use Acres
C, Forest, Mod 2.13
Impervious Land Use Acres
Element Flows To:
Surface Interflow Groundwater
Name Basin 1
Bypass: No
GroundWater: No
Pervious Land Use Acres
C, Lawn, Mod .25
C, Forest, Mod 1.756
Impervious Land Use Acres
ROOF TOPS FLAT 0.063
DRIVEWAYS MOD 0.061
Element Flows To:
Surface Interflow Groundwater
Gravel Trench Bed 1, Gravel Trench Bed 1,
Name Gravel Trench Bed 1
Bottom Length: 40ft.
Bottom Width : 10ft.
Trench bottom slope 1: 0.001 To 1
Trench Left side slope 0: 1 To 1
Trench right side slope 2: 1 To 1
Material thickness of first layer : 0.5
Pour Space of material for s d layer : 0.33 •
Material thickness of third 1 er : 1
Pour Space of material for third layer : 0.33
Infiltration On
Infiltration rate : 2
Infiltration saftey factor : 0.25
Discharge Structure
Riser Height: 0.5 ft.
Riser Diameter: 6 in.
Element Flows To:
Outlet 1 Outlet 2
Gravel Trench Bed Hydraulic Table
Stage(ft) Area(acr) Volume(acr-ft) Dschrg(cfs) Infilt(cfs)
0.000 0.009 0.000 0.000 0.000
0.006 0.009 0.000 0.000 0.005
0.011 0.009 0.000 0.000 0.005
0.017 0.009 0.000 0.000 0.005
0.022 0.009 0.000 0.000 0.005
0.028 0.009 0.000 0.000 0.005
0.033 0.009 0.000 0.000 0.005
0.039 0.009 0.000 0.000 0.005
0.044 0.009 0.000 0.000 0.005
0.050 0.009 0.000 0.000 0.005
0.056 0.009 0.000 0.000 0.005
0.061 0.009 0.000 0.000 0.005
0.067 0.009 0.000 0.000 0.005
0.072 0.009 0.000 0.000 0.005
0.078 0.009 0.000 0.000 0.005
0.083 0.009 0.000 0.000 0.005
0.089 0.009 0.000 0.000 0.005
0.094 0.009 0.000 0.000 0.005
0.100 0.009 0.000 0.000 0.005
0.106 0.009 0.000 0.000 0.005
0.111 0.009 0.000 0.000 0.005
0.117 0.009 0.000 0.000 0.005
0.122 0.009 0.000 0.000 0.005
0.128 0.009 0.000 0.000 0.005
0.133 0.009 0.000 0.000 0.005
0.139 0.009 0.000 0.000 0.005
0.144 0.009 0.000 0.000 0.005
0.150 0.009 0.000 0.000 0.005
0.156 0.009 0.000 0.000 0.005
0.161 0.009 0.000 0.000 0.005
0.167 0.009 0.001 0.000 0.005
0.172 0.009 0.001 0.000 0.005
0.178 0.010 0.001 0.000 0.005
0.183 0.010 0.001 0.000 0.005
0.189 0.010 0.001 0.000 0.005
0.194 0.010 0.001 0.000 0.005
0.200 0.010 0.001 0.000 0.005
0.206 0.010 0.001 0.000 0.005
0.211 0.010 0.001 0.000 0.005
0.217 0.010 0.001 0.000 0.005
0.222 0.010 0.001 0.000 0.005
0.228 0.010 0.001 0.000 0.005
0.233 0.010 0.001 0.000 0.005
0.239 0.010 0.001 0.000 0.005
0.244 0.010 0.001 0.000 0.005
0.250 0.010 0.001 0.000 0.005
0.256 0.010 0.001 0.000 0.005
0.261 0.010 0.001 0.000 0.005
0.267 0.010 0.001 0.000 0.005
0.289 0.010 0.001 0.000 0.005
411
0.294 0.010 0.001• 0.000 0.005
0.300 0.010 0.001 0.000 0.005
0.306 0.010 0.001 0.000 0.005
0.311 0.010 0.001 0.000 0.005
0.317 0.010 0.001 0.000 0.005
0.322 0.010 0.001 0.000 0.005
0.328 0.010 0.001 0.000 0.005
0.333 0.010 0.001 0.000 0.005
0.339 0.010 0.001 0.000 0.005
0.344 0.010 0.001 0.000 0.005
0.350 0.010 0.001 0.000 0.005
0.356 0.010 0.001 0.000 0.005
0.361 0.010 0.001 0.000 0.005
0.367 0.010 0.001 0.000 0.005
0.372 0.010 0.001 0.000 0.005
0.378 0.010 0.001 0.000 0.005
0.383 0.010 0.001 0.000 0.005
0.389 0.010 0.001 0.000 0.005
0.394 0.010 0.001 0.000 0.005
0.400 0.010 0.001 0.000 0.005
0.406 0.010 0.001 0.000 0.005
0.411 0.010 0.001 0.000 0.005
0.417 0.010 0.001 0.000 0.005
0.422 0.010 0.001 0.000 0.005
0.428 0.010 0.001 0.000 0.005
0.433 0.010 0.001 0.000 0.005
0.439 0.010 0.001 0.000 0.005
0.444 0.010 0.001 0.000 0.005
0.450 0.010 0.001 0.000 0.005
0.456 0.010 0.001 0.000 0.005
0.461 0.010 0.001 0.000 0.005
0.467 0.010 0.001 0.000 0.005
0.472 0.010 0.001 0.000 0.005
0.478 0.010 0.002 0.000 0.005
0.483 0.010 0.002 0.000 0.005
0.489 0.010 0.002 0.000 0.005
0.494 0.010 0.002 0.000 0.005
0.500 0.010 0.002 0.000 0.005
MITIGATED LAND USE
ANALYSIS RESULTS
Flow Frequency Return Periods for Predeveloped. POC #1
Return Period Flow(cfs)
2 year 0
5 year 0
10 year 0
25 year 0
50 year 0
100 year 0
Flow Frequency Return Periods for Mitigated. POC #1
Return Period Flow(cfs)
2 year 0
5 year 0
10 year 0
25 year 0
50 year 0
100 year 0
v�-_, n....7... a,... n�....a........1..�....a _...a u:4-:.........7 nes, 141
IIIRanked Yearly Peaks for Prede eloped and Mitigated. POC #1
Rank Predeveloped Mitigated
POC #1
The Facility PASSED
The Facility PASSED.
Flow(CFS) Predev Dev Percentage Pass/Fail
0.0000 0 0 0 Pass
0. 0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0. 0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0. 0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0. 0000 0 0 0 Pass
0. 0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0. 0000 0 0 0 Pass
0. 0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0. 0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0. 0000 0 0 0 Pass
0. 0000 0 0 0 Pass
0.0000 0 0 0 Pass
0. 0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0. 0000 0 0 0 Pass
0.0000 0 0 0 Pass
0. 0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0. 0000 0 0 0 Pass
0. 0000 0 0 0 Pass
0. 0000 0 0 0 Pass
0. 0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0. 0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass •
0.0000 0 0 0 Ell Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
0.0000 0 0 0 Pass
Water Quality BMP Flow and Volume for POC 1.
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.
Perind and Impind Changes
No changes have been made.
This program and accompanying documentation is provided 'as-is' without warranty of any kind. The entire risk
regarding the performance and results of this program is assumed by the user. Clear Creek Solutions 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 Clear Creek Solutions
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 use of, or inability to use this program even if Clear Creek Solutions or the Washington State Department
of Ecology has been advised of the possibility of such damages.
• •
__ 1Xl
ifsra Wes awe 1Yp ——
❑Fs fill a3l 02g
[ 001 — 1 M- _7 _,,,,..,,,,,,1 r: ...ID
al 1. _._. .. ' 1i.rmlLcncn Bed lrartgatna O X
I Facility Name
-r ons-,S..-. Outlet 1 Outlet 2 OoOet 3
_._._._--_._. —.._______ Downstream Comedian 0 0 ID
r.__ J F MtiO.d Etly 'F dlity Type TiaddB.d
'i i i - rr�-�FheV Wren/�re�do F.c� Ouch Tranrh
I4.4 i
'Facility Bottom Elevation el) 10
gigi
Facility Dimeewons
Tench Lenin Outlet Slructrlrs
— 1111 = Nea lidyt llll
nrrr,(. _.�___— T�d,edroa Wdh 05 ='I
�Ehamve Tobl Depth
.` lion Diseee(N �-�
.�� R Type Fl�
t�L_-. Swag Trench -'
�r g I.. Leh Die Slam LI--•
Na1d.Typo
I
FiiN Ws Skips
____._.....1__...____.1__._.._.,_.______L. _ I Material Lelys s for
Lela 1TFiare..pp Odice DanieterHeight OMos
I Lae 1 randy - Windier (In) (Ft) (sae)
— -- — --- !Lassa Thanes 0n r '_— 1 r—Jr--1 0
'Lass zw r, —�.� 2 10-=-1� 1 i
Lan 3 Thickness 00 l.'...^ — 3 icr—'1r 1 i
Lae 3pasiy ,_
Tie hVoimen FT®Head 1 .-ft) 1100
Mow Eked,--- Infitratioa YES -`1
Wowed i,m.ia Ran WAIT—_:.1 Pad t��c DlD I
----- _ - — h(itra.onH d D
oWnenFes a ._.,1 Show Pond Table lopmfdie :I
Um Waned Sulam/hes[sid. ) ND
Sava- a,lady a __ e TM/Voles lAli iil 0113 TonlVdm a Though Farty(aasnl ells
.I Inn Vdee Thad,F6alavei4 0 Pecan Minion 100
6/2W a10 I1 taz AM
start L,:. m D/•1n44 Lr4Lw•a. j)arx:net.w Y.4.. le YAb.: h:.ci+Nees - ] +'i+,'�F.. •-9' 4,11,7 r.c:a
• •
ATTACHMENT III
MAINTENANCE MANUAL
• •
5.3.1 Dispersion and Soil Quality BMPs (Required for Manual
Equivalency)
The following BMPs pertain to dispersion and soil quality applications.
BMP T5.10 Downspout Dispersion
Purpose and Definition
Downspout dispersion BMPs are splashblocks or gravel-filled trenches
that serve to spread roof runoff over vegetated pervious areas. Dispersion
attenuates peak flows by slowing entry of the runoff into the conveyance
system, allows for some infiltration, and provides some water quality
benefits.
Applications and Limitations
• Downspout dispersion is required on all subdivision single family lots
which meet one of the following criteria:
1. Lots greater than or equal to 22,000 square feet where downspout
infiltration is not being provided according to the requirements in
Volume III, Chapter 3.
2. Lots smaller than 22,000 square feet where soils are not suitable
for downspout infiltration as determined in Volume III, Chapter 3
and where the design criteria below can be met.
• All other projects required to apply Roof Downspout BMPs must
provide downspout dispersion if downspout infiltration is not feasible
or applicable as determined in Volume III,Chapter 3,and if the design
criteria below can be met.
Flow Credit for Roof Downspout Dispersion
If roof runoff is dispersed according to the requirements of this section on
single-family lots greater than 22,000 square feet, and the vegetative
flowpath' is 50 feet or larger through undisturbed native landscape or
lawn/landscape area that meets BMP T5.13, the designer may click on the
"Credits"button in the WWHM and enter the percent of roof area that is
being dispersed.
General Design Guidelines
• Dispersion trenches designed as shown in the Figures 5.1 and 5.2 shall
be used for all downspout dispersion applications except where
Vegetative flow path is measured from the downspout or dispersion system discharge point to the downstream
property line,stream,wetland,or other impervious surface.
February 2005 Volume V—Runoff Treatment BMPs 5-3
• •
splashblocks are allowed below. See Figure 5.3 for a typical
splashblock.
• Splashblocks may be used for downspouts discharging to a vegetated
flowpath at least 50 feet in length as measured from the downspout to
the downstream property line,structure, sensitive steep slope, stream,
wetland, or other impervious surface. Sensitive area buffers may
count toward flowpath lengths. The vegetated flowpath must be
covered with well-established lawn or pasture, landscaping with well-
established groundcover,or native vegetation with natural
groundcover. The groundcover shall be dense enough to help disperse
and infiltrate flows and to prevent erosion.
• If the vegetated flowpath(measured as defined above)is less than 25
feet on a subdivision single-family lot,a perforated stub-out
connection may be used in lieu of downspout dispersion(See Volume
III, Chapter 3). A perforated stub-out may also be used where
implementation of downspout dispersion might cause erosion or
flooding problems, either on site or on adjacent lots. This provision
might be appropriate,for example, for lots constructed on steep hills
where downspout discharge could be cumulative and might pose a
potential hazard for lower lying lots, or where dispersed flows could
create problems for adjacent offsite lots. This provision does not apply
to situations where lots are flat and onsite downspout dispersal would
result in saturated yards.
Note:For all other types of projects, the use of a perforated stub-out
in lieu of downspout dispersion shall be as determined by the Local
Plan Approval Authority.
5-4 Volume V—Runoff Treatment BMPs February 2005