HomeMy WebLinkAboutSWG2025-00023 - SWG Application / Design - 2/28/2025 584
MASON COUNTY 415NB SHELTON: , 0427-97 ,EXT 400
SHELTON:360-2759 70,EXT 400
BELFAIR:380-2]5-0467,E%T 400
Public Health & Human Services ELMA.360482-5269,EXT 400
FAX 360-427-7787
On-Site Sewage System Permit: SWG2025-00023
APPLICANT Amy Hardie Phone: 360464-3952
Address: 698 SE MILL CREEK RD SHELTON, WA 98584
OWNER HARDIE LEAK Phone:
Address: 698 SE MILL CREEK RD SHELTON,WA 98584
SEPTIC DESIGNER PAULAJOHNSON• Phone: 360-898-2255
Address: 171 E VUECREST DRIVE UNION, WA 98592
SEPTIC INSTALLER SHANE MAPLES* Phone: 360463-8474
Address: 911 SE Arcadia Road SHELTON, WA 98584
Site Address: 700 SE Mill Creek Rd
Primary Parcel Number: 320294300100
Permit Description: New 3-bedroom Gravity System with Class B Waiver
Permit Submitted Date: 0112812025
Permit Issued Date: 02/18/2025
Issued By: David Anderson
Current Permit Fees Paid: $555.00 (additional yeas may Ite required upon lnstaneron d system).
Permit Expiration Date: 02I1412028 (based on date ormspeobon)
Permit Conditions:
1 Proposed development subject to zoning requirements and approval by the planning
department sta%per Mason County Title 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 upslope and downslope depth specified on
design form.
4 Installer is responsible for obtaining Mason County installation approval prior to backfill of
system components.
5 Installer is responsible for obtaining Septic Designer/Engineer installation approval prior to
backfill of system components.
6 Mason County Asbuilt 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: masoncountywa.govlhealthlenvironmentallonsite/oss-inspection-request.php or call:
360-427-9670, extension 400.
OFFICIAL USE ONLY
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At the traffic circle take the 1 at exit and go 2.2 miles.Turn(L)onto SE Mill Creek Rd. Destination on(R). O
Turn at driveway marked'690 692 698'on pole.Drive straight until you come to a closed gate near RV. o
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Thai FORMMAYBEKANNEDAND AILABLE FORPUBL6VIEWON ME MA30N COUNTY WEBSITE
REVISED 1PI120�9
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Assessor's Parcel Number: 3 2 0 2 9 — 4 3 — 0 0 1 0 0
DESIGN FORM PAGE ONE __---
A design will be reviewed when 3 conies of each of the following are submitted:
•Completed design fern that has been signed and dated. •Scaled layout sketch,including all applicable items on checklist
•Scaled plot plan,including all applicable items on checklist. •Crass-section sketch,including all applicable items on checklist.
Thu form may bescinmel and available for ublic de.on the Mason County Web site tf=1mnm o rsue_ 11"X17"
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Permit Number. SWG Designer's Name: Arrow Septic Designs,Inc
AppBcm[S Name:
Amy Handle Designer's Phone Number: (360)898-2255
Mailing Address: 698 SE Mill Crash Rd Designer's Address: 17l E Vueerem Dr
Styr", WA 9a58a Union, WA 98992
CitV State zie Citv State Zi
Treatment Device
Cl Glendon Biofiber ❑Send Filter ❑Mound ❑Send Lined Iheardidd ❑Recirculating Filter,Type:
❑Aerobic Unit Make/Model ❑Disinfection Unit Make/Model Other: 50'ARenuatiorl Zone
Drainfreld Type
N(Grevity, 0 Pressure IlfTrench 0 Bed ❑Sub Surface Drip
Septic Tank/Drainfmid Specifications Laterals
Number of Bedrooms 3 Schedule/Class 2729
Daily Flow.Operating Capacity 270 gpd Length 38 ft
Daily Flow:Design Flow 360 gpd Diameter 4 in
Septic Tank Capacity(working) 1,200 gal Number 4
Raeiving Soil Type(16) 3 Separation 9 ft
Receiving Soil Appl.Rate 0.8 gpd/ft' Orifices
Required Printery Area 450 It, Total Number of Orifices —
Designed Primary Area 456 ft' Diameter — in
Designed Reserve Area 456 ft2 Spacing -- in
Trench/Bled Width 3 ft Manifold
Treuch/Bed Length 152 ft SchedWe/Class —
Elevation Measurements Length — it
Original Dreinfield Area Slope 5 % Diameter — in
New Slope,If Altered 5 % Preferred manifold configuration used? Cl Yes 0 No
Depth of Excavation U"Ji 12 in Transport Pipe
from Original Grade W.,kpe 10 in Schedule/Class 3034
Designed Vertical Separation 18+ in Length 20 ft
Gravelless Chambers Required? ❑Yes 13No 61<Optional Diameter 4 in
Pump Required? ❑Yes EfNo Doming and Pump Chamber
Pump/Siphon Specifications Number ofdoses/day —
Diff.in Elevation Between Pump&Uppermost Orifice ft Dose quantity — gal
Drainfield Squirt Height/Selected Residual(head) ft Chamber Capacity(flood)
Uppermost Orifice 0 Higher 0 Lower than Pump Shutoff Pump controls:Please check those required.
Capacity @ Total Pressure Head — gpm Minn., DElapse Meter 0 Event Counter
Calculated Total Pressure Head R If Timer: Pump on ,Pump oft —
Comments
1 of �o
DESIGN FORM—PAGE TWO Assessor's Parcel Number:3 2 0 2 9 — 4 3 — 0 0 1 0 0
Permit Number: SWG
DESIGN CHECKLISTS
Scaled Plot Plan Scaled Layout Sketch Cross-Section Sketch
5d Test hole locations 19 Drainfield orientation and layout Reference depth from original grade:
0 Soil logs Ef Trench/bed dimensions and 51 Septic tank
0 Property lines critical distances within layout GI Drainfield cover
la Existing and proposed wells 16 D-BoxNalve box locations Reference depth from original grade
within 100 ft of property 16 Septic tank/pump chamber and restrictive strata:
❑ Measurements to cuts,banks,and locations Gf Laterals,trench bed,top and
surface water and critical areas 19 Observation port location bottom
❑ Location and orientation of ❑ Cleanout location ❑ Curtain drain collector
curtain drain and all absorption ❑ Manifold placement ❑ Sand augmentation
components ❑ Orifice placement
66 Location and dimension of p Other cross-section detail:
primary system and reserve area Ef Lateral placement with distance Wf Observation ports/cleanouts
Buildings toedgeofbed Other Information
61 Direction of slope indicator ❑ Audible/vis referenced Yes No
R 19 Scale of d on scale Nl ❑Design staked out
Ed Ed Waterlines nes bar e 9 ❑Recorded Notices attached
Roads,easements,driveways, a f Ed ❑Waiver(s)attached
parking _ ❑ lif Pump curve attached
North arrow and scale drawing r ❑ fd Evaluation of failure
shown on scale bar ?AOtq JOYY JO NNSON Non-residential justific tion
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SE D I ❑ O Waste strength
Devi t / _ ❑ L7j Flow
DESIGN O AL
The undersigned designer must be not by II at time of installation Rf Yes ❑ No
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Signature of Designer Date [```yqq �The undersigned has reviewed this design on behalf of Mason County Public Health and determined/f�iOn
compliance with state and local onshe lations:
6nvil'ohmental Health peci is � Date N41 B ?
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CAUTION: DESIGN APPROVAL IS VALID ONLY UNDER THE FOLLOWING CO ryFNt'/ Zf
✓ The design is stamped"Approved"by Mason County Public Health
✓ The Onsite Sewage Permit has not expired,the Permit Expiration Date is:
✓ 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.
kInstallation Fee is re uired.
This farm may be conned and available for public view on the Mason County Web site.
Updated Date: 12/7/2015
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-*Note; Septic Tanks must meet standards required by WAC chapter 246.272C
and manufacturer must be on the Dept of Health fist of registered sewage tanks."
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INSTALLATION& MAINTENANCE
Gravity Distribution Systems
JO
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1. Install Laterals with contour of the ground.
2. Install trench bottoms level. ( - L'S-Zs
3. Install locator tape or rebar at each end of all drainfield laterals.
4. Install observation ports as indicated on the detailed drainfield layout One required at
distal end of each lateral in drainfield with bottom extending to the draituock/native soil
interface. Glue"T'to bottom so Observation Port cannot be easily removed from
ground. Install removable cap on top of port at final grade level.
5. Install drainfield during dry weather and soil conditions; any soil smearing must be
eliminated by hand raking.
6. Use distribution box with speed levelers and cover to surface. Divert incoming pipe
down with 90-degree angle to prevent short-circuiting.
7. Filter fabric required over drain rock prior to back filling. If the drain rock extends above
natural grade,run the filter fabric at least 2 inches down the trench wall.
8. Encase all water lines within 10' of drainfield and under any driveway/parking areas.
9. Divert all storm water runoff away from on-site sewage system.
10.No curtain drains allowed within 10' of the up-slope edge or 30' of the down-slope edge
of the drainfield and reserve area
11.No vehicular traffic over drainfield area.
12. Install Bio-Tube or equivalent effluent filter at outlet end of septic tank.
13. All manhole lids and access, sampling or inspection ports must have locking covers and
be located at ground level.
14. Inspect tank and clean filters every 6-12 months as needed.
15. Have the septic tank pumped or professionally inspected every 3 to 5 years.
16. All materials and workmanship must meet County and State regulations.
17.Deviation from this design without prior approval from the Designer and Mason County
Environmental Health Department will make this design null and void.
18.All transport lines under driveways or parking areas must be encased to prevent crushing.
19.Homeowner is responsible for all property lines and easements.
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