HomeMy WebLinkAboutSWG2024-00313 - SWG Application / Design - 7/19/2024 MASON COUNTY 415N8SHELTON. ,S427-96, .EXT 400
$HELFAIR 360-2754470.EXT 400
Public Health & Human Services BELFA R:3a0-275-0467,EXT C00
ELMA:36G,1 2-5269,EXT 100
FAX 360J27-7787
On-Site Sewage System Permit: SWG2024-00313
APPLICANT WATT L SUSAN Phone: 503-2013977
Address: 7520 N MOHAWK AVE,APT B PORTLAND,OR 97203
OWNER WATT SUSAN Phone: 503-2013977
Address: 7520 N MOHAWK AVE,APT B PORTLAND,OR 97203
SEWAGE DESIGNER CINDY WAITE• Phone: 360-701-0205
Address: 80 E Pickering Lane SHELTON,WA 98584
Site Address: 241 NE Capstan Rock Rd
Primary Parcel Number: 323157500100
Permit Description: 3-bedroom pressure system
Permit Submitted Date: 07/19/2024
Permit Issued Date: 08/05/2024
Issued By: David Anderson
Current Permit Fees Paid: $805.00 (additional fees may be reamred upon lnstallatum of system).
Permit Expiration Date: 07/23/2027 (based on date ofnsWalon)
Permit Conditions:
1 Proposed development subject to zoning requirements and approval by the planning
department staff per Mason County Idle 17.
2 Permit must be installed by a Mason County Certified Installer unless prior written
authorization from Mason County is obtained.
3 Drainfield installation not to exceed designed upsiope and downslope depth specified on
design form.
4 Installer is responsible for obtaining Mason County installation approval prior to backfill of
system components.
5 Installeris responsible for obtaining Septic Designer/Engmeer installation approval pdor to
backfill of system components.
6 Mason County Asbuih Form, Record Drawing, and Installation fee must be submitted for
final installation approval.
THIS PERMIT MUST BE ONSITE DURING INSTALLATION OF OSS.
PROPERTY OWNERS ARE RESPONSIBLE FOR DETERMINING AND MARKING ALL PROPERTY LINE AND EASEMENT LOCATIONS.
THIS PERMIT MAY BE REVOKED IF THE SITE CONDITIONS HAVE CHANGED SINCE THE SITE WAS INSPECTED AND DESIGN APPROVED.
FINAL INSTALLATION APPROVAL IS REQUIRED PRIOR TO TEMPORARY OR FINAL OCCUPANCY OF ANY RELATED STRUCTURES.
For Final Inspection visit: masonmuntywa.govlhealthfonvironmentaYonsite/oss4nspedlon+ qu"t.php or call:
360427-9670,extension 400.
OFFICIAL USE ONLY
MASON COUNTY 'I N D
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ON-SITE SEWAGE SYSTEM APPLICATION 3 A
APPLICANT PHONE fA m
SUSAN WATT 503-201-3977 z
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MAILINGADDRESS-MEET CITY STATE,ZIP CODE 3
7520 N MOHACH PORTLAN OR 98 m
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' NAME OF INSTALLER PHONE I CAI
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IB ILEWCONSTRUCTIONIUPGRADES bI REPAIR IREPIACEMENT OTHER DETAILS(MxN eNmalePgy) TABLE I%REPAIR I IV
SUBMpMITTALS O SURFACING SEWAGE O EXISTING FAILURE ❑SHORELINE
fif DESIGNFORM(REQUIRED) 9SEPTIC DESIGN(REQUIRED) BEDROOMS LOT SRE IN
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DIRECTIONS TO SITE AND SITE CONDITIONS I pale)
GO OUT NORTHSHORE RD, TURN RIGHT ONTO TAHUYA BELFAIR RD, TURN RIGHT o
ONTO DEWATTO ROAD, TURN RIGHT ONTO DEWATTO HOLLY RD, LEFT ONTO r
MANKE RD, TURN RIGHT ONTO CAPSTAN ROCK RD, LOCKED GATE (CODE'PIER), o
KEEP LEFT AT THE Y, PARCEL IS AT END OF ROAD. I o
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❑VOLUNTARY OMAINTENANCE)PUMPING O BUILDING PERMIT OHOMESALE OCOMPLAINT OOTHER:.
INSPECTOR SOIL LOGS r COMMENTSICCNDRIONS
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RECORD DRAWNG AND INSTALiATON REPORT
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V=WVERY G=GF/NELLY 3=SAND L=LOOA1 S1=SILT C•CLAT E=EXTREMELY R=ROOT$ REQUIRED FOR FINALAPPItOVAL.
IHSPECT SIONANRE �10DATE I L` PPPLI�N�PIRATION GATE � APPLIPATI PROVENISSU/BY
THIS FORM MAY BE SCANNED AND AVAILABLE FOR PUBLIC VIEW ON THE MASON COUNTY WEBSITE PENISES 1WMIS
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DESIGN FORM—PAGE ONE Assessor's Parcel Number: 3 2 3 1 5 — 7 5 — 0 0 1 0 0
A design will be reviewed when 3 copies of each of the following are submitted:
Completed design form that has been signed and dated. v Scaled layout sketch,including all applicable items on checklist
Scaled plot plan, including all applicable items on checklist. I Cross-section sketch, including all applicable items on checklist. .
This form maybe scanned and available for public view on the Mason County Web site.Maximum paper size: 11"X 17"
PARCEL IDENTIFICATION
Permit Number: SWGa , u •W-36 Designer's Name: CINDY WAITE
Applicant's Name: SUSAN WATT _ Designer's Phone Number: 360-701-0206
Mailing Address: 7520 N MOHACH Designer's Address: 80 E PICKERING LANE
PORTLAND OR 98203 SHELTON WA 98554
city State Zip City State Zip
DESIGN PARAMETERS
Treatment Device
❑Glendon Biofrlter ❑Sand Filter ❑ Mound ❑ Sand Lined Grainfield ❑Recirculating Filter,Type:
❑Aerobic Unit MakelModel ❑Disinfection Unit Make/Model Other:
Drainfteld Type
❑Gravity Rr Pressure R(Trench ❑ Bed ❑Sub Surface Drip
Septic Tank/Drainfield Specifications Laterals
Number of Bedrooms 3 Schedule/Class SCHEDULE40
Daily Flow:Operating Capacity 270 gpd Length 50 ft
Daily Flow: Design Flow 360 gpd Diameter 1.25 in
Septic Tank Capacity(working) 1200 gal Number 4
Receiving Soil Type(1-6) 4 Separation 5 ft
Receiving Soil Appl.Rate .6 gpolW Orifices
Required Primary Area 600 ft, Total Number of Orifices 40 r
Designed Primary Area 600 ftt Diameter 3/16 in
Designed Reserve Area 600 ft' Spacing 60 in
TrenchBed Width 3 ft Manifold
Trench/Bed Length 200 _ ft Schedule/Class SCHEDULE40
Elevation Measurements Length 1-2 ft
Original Grainfield Area Slope <j % Diameter 2 in
New Slope,If Altered % Preferred manifold configuration used? ❑ Yes O No
Depth of Excavation Up-slope SEE PAGE#5 in Transport Pipe
from Original Grade Down,, SEE PAGE#5 in Schedule/Class SCHEDULE40
Designed Vertical Separation 24 in Length 40 ft
Gravelless Chambers Required? ❑Yes O No O Optional Diameter 2 in
Pump Required? If Yes ❑Np Dosing and Pump Chamber
Pump/Siphon Specifications Number ofdoses/day 6
Diff.in Elevation Between Pump&Uppermost Orifice 10 ft Dose quantity 45 gal
Drainfield Squirt Height/Selected Residual(head) 2 ft Chamber Capacity(flood) 1200 gal
Uppermost Orifice 9Higher ❑Lower than Pump Shutoff Pump controls: Please check those required.
Capacity @ Total Pressure Head 23.6 gpm RfTimer G(Elapse Meter hif Event Counter
Calculated Total Pressure Head 12.499 ft If Timer: Pump on ,Pump off
Comments
CONCRETE TANKS REQUIRED, CONTROLS TO BE SET AT TIME OF INSTALLATION, GRAVEL
BASED DRAINFIELD REQUIRED.
DESIGN FORM—PAGE TWO Assessor's Parcel Number: 3 2 3 1 5 — 7 5 -- 0 0 1 0 o
Permit Number: SWG
DESIGN CHECKLISTS
Scaled Plot Plan Scaled Layout Sketch Cross-Section Sketch
Id Test hole locations 19 Drainfield orientation and layout Reference depth from original grade:
It Soil logs Rf Trench/bed dimensions and fid Septic tank
m Property lines critical distances within layout E9 Drainfield cover
id Existing and proposed wells if D-BoxNalve box locations Reference depth from original grade
within 100 R of property Rf Septic tank/pump chamber and restrictive strata:
m Measurements to cuts,banks,and locations {Lf T.�v 6d Laterals,trench/bed,top and
surface water and critical areas 19 Observation port location bottom
grttocation and orientation of 95 Clean-out location ❑ Curtain drain collector
curtain drain and all absorption 56 Manifold placement ❑ Sand augmentation
components 19 Orifice placement Other cross-section detail;
Eb Location and dimension of primary system and reserve area fid 66 Observation Lateral placement with distance ports clean-outs
121 Buildings to edge of bed Other Information
Ed Audible/visual alarm referenced Yes No
ld Direction of slope indicator i1
fid Scale of drewingnshowna ot'scale liJ ❑ Design staked out
Ed Waterlines bar ❑ ❑ Recorded Notices attached
Id Roads,easements,driveways, ❑ ❑ Waiver(s)attached
parking ❑ ❑ Pump curve attached
0 North arrow and scale drawing ❑ ❑ Evaluation of failure
shown on scale bar Non-residential justification
❑ ❑ Waste strength
❑ ❑ Flow
DESIGN APPROVAL
The undersigned designer must be noti d by i taller at time of installation 66 Yes ❑ No
..,.L -7 I P 20 zy 4 p
Signa[ of Designer at))� pR�/�/
The undersigned has reviewed this design on behalf of Mason County Public Health and determined it o be ' �C
compliance with state and local on-sit/e�uI ions: n A
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Envubrunental Health Specialist Date "JA "**t4l yEq(Ty
CAUTION: DESIGN APPROVAL IS VALID ONLY UNDER THE FOLLOWING CONDITION:
✓ The design is stamped"Approved'by Mason County Public Health. W
✓ The Onsite Sewage Permit has not expired,the Permit Expiration Date is: Q
✓ Drainfield site conditions have not been altered to adversely affect conditions of design approval.
Please Note: The system must be installed by a certified installer,
unless prior authorization is obtained from Mason County Public Health.
An Installation Fee is required.
This form may be scanned and available for public view on the Mason County Web site.
Updated Daze: 12/7/2015
Mason County WA GIS Web Map
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Installation Notes
Pressure Distribution System:
32315-75-00100 241 Capstain Rock Rdr
1. The prepared site plan is not a survey. It's the owner's responsibility to verify property
lines, utility lines (water, sewer, power, phone and gas) prior to installation.
2. The tank may be moved as necessary to accommodate building requirements. Septic
tank location must meet all required setbacks.
3. Keep wheeled vehicles off the drainfield area before, during and after installation.
Tracked equipment only
6. All ground, surface water and roof drains must be diverted away from the septic tanks
and drainfield. Ensure the final grade slopes away from these areas and water doesn't
collect on or around them. Use swales, berms, catch basin and tight lines, curtain drains,
etc. to divert all waters.
7. Curtain drains can be no closer than 10' upgradient and 30' down gradient of the
drainfield
B. Exposed restrictive layers, cuts, banks, etc. can be no closer than 50' downhill from the
drainfield.
9. Install access risers on the septic tanks, valve box and ends of laterals.
10. Make sure septic tank risers are epoxied or caulked to cast in riser rings on tank.
11. Lids must form a water and gas tight seal with the access risers.
12. Install effluent filter specified in this design at the septic tank outlet.
13. This system must be installed by a Mason County Certified installer.
14. Deviation from this design without prior approval from the designer and Mason County
Health Department will make this design null and void.
15. This design was sized per Washington Administrative CodeWAC246-272A-0230. The
operating capacity is based on 45 gallons per day per capita with two persons per
bedroom. The minimum design flow per bedroom per day is the operating capacity of
ninety gallons multiplied by 1.33. This results in a minimum design flow of one hundred
twenty gallons per day. This creates a surge factor of 33% but anticipated flow is ninety
gallons per bedroom per day.
16. Install laterals with contour of the ground.
17. Install trench bottoms level and always maintain a minimum of six inches into native
soil..
18. Install threaded clean outs at the ends of all laterals (caps must extend to within six
inches of finish grade and be in a valve box as shown on diagram.
19. Install audio/visual alarm.
20. Filter fabric required over drain k for to backfilling. If the drain rock extends above
the original grade, run the fill ric least 2 inches down the trench wall.
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System Owner Responsibilities:
1. Operation and Maintenance is required by Washington State Department of Health and
Mason County Health Department.
2. The septic tank and pump tank should be pumped every three to five years or as
needed.
3. System owners are responsible for having maintenance performed annually.
4. System owners are responsible for responding to septic issues in a timely manner.
5. System owners shall not at any time change or alter settings in the control box.
6. System owner agrees to read and abide by information regarding their system in the
User Manual provided by Mason County Public Health.
7. Keep the flow of sewage at or below the approved design operating capacity.
B. Keep waste strength at residential waste strength parameters.
9. Spread loads of laundry through the week.
10. Do not use excessive bleach or detergents with added whiteners.
11. Do not shower, do laundry and dishwasher at the same time
12.Antibiotics can kill or impair the biological process in the septic tank.
13. Leaky plumbing can hydraulic overload your on-site septic system.
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