HomeMy WebLinkAboutSWG2025-00002 - SWG Application / Design - 1/6/2025 SHEL
584
MASON COUNTY 415N6SHELTON: 60427TO70,EXT 400
SHELTON:360325-4467,EXT 400
BELFAIR:360-275-0467,EXT 400
Public Health & Human Services ELMA:360482-5269,EXT 400
FAX 360427-7787
On-Site Sewage System Permit: SWG2025-00002 O JY
APPLICANT SWENSON CHARLES L&JOANN C Phone:
Address: 2224 WALKER PARK RD SHELTON, WA 98584
OWNER SWENSON CHARLES L&JOANN C Phone:
Address: 2224 WALKER PARK RD SHELTON, WA 98584
SEPTIC DESIGNER DALE TAHJA' Phone: 360-426-5940
Address: 2450 W DEEGAN ROAD WEST SHELTON,WA 98584
SEPTIC INSTALLER TJ GOOS` Phone: 360-490-0217
Address: 150 E MARISA PL SHELTON, WA 98584
Site Address: 2224 BE WALKER PARK RD
Primary Parcel Number: 320215003005
Permit Description: Table 9 repair 3bd pressure trench
Permit Submitted Date: 0110612025
Permit Issued Date: 0110912025
Issued By: Rhonda Thompson
Current Permit Fees Paid: $825.00 (additional fees may ee required upon mdallmmn of syslam).
Permit Expiration Date: 01108/2026 (based on date of inspection)
Permit Conditions:
1 Proposed development subject to zoning requirements and approval by the planning
department staff 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 specked 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
backffll 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.gov/health/environmentaVonsitaloss-inspection4equest.php or wll:
360-427-9670, extension 400.
OFFICIAL USE ONLY
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DESIGN FORM—PAGE ONE Assessor's Parcel Number: 3 2 0 2 1 — 5 0 — 0 3 0 0 5
A design will be reviewed when 3 copies of each of the following are submitted:
•Completed design form that has been signed and dated. Scaled layout sketch,including all applicable items on checklist
•Scaled plot plan,including all applicable items on checklist. Crosasection sketch,including all applicable items on checklist.
Thin farm in bescannedandaidlablefur blic Omeenme MoonC Web sm.Maximum rsize: ll"X17"
Permit Number: SWG v`2��" 0"Z Designer's Name: Dale Tah)a
Applicant's Name: Charles Swenson Designer's Phone Number: (360)463-8023
Mailing Address: 2224 SE Walker Park Rd. Designer's Address: 2450 W Deegan Rd W
shaman WA 90584 Shelbn WA 98584
city State Zi Ci State Zi
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Treatment Device
❑Glendon Biofilrer ❑Sand Filter ❑Mound ❑Send Lined Drainfield ❑Recirculating Firer,Type.
❑Aerobic Unit MaktaModel ❑Disinfection Unit Make/Model Other: NIA
,./ Drainfield Type
m❑Gravity Pressure S(Trauch ❑Bed ❑Sub Surface Drip
Septic Tank/Drainfteld Specifications Laterals
Number of Bedrooms 3 Schedule/Class Sdu.40
Daily Flow:Operating Capacity 270 gpd Length 18,22,20,12,56.68 ft
Daily Flow:Design Flow 360 gpd Diameter 1.25 in
Septic Tank Capacity(working) 1,250 gal Number 6
Receiving Soil Type(1-6) 4 Separation 5 ft
Receiving Soil Appl.Rate 0.6 gpd/ft' Orifices
Required Primary Area 600 ftt Total Number of Orifices 50
Designed Primary Area 600 W Diameter 118 in
Designed Reserve Area 0 ft2 Spacing 48 in
Trmch/Bed Width 3 R Manifold
Trench/Bed Length 200 ft Schedule/0ass Sch.40
Elevation Measurements Length 100 It
Original Dreinfield Area Slope 0 % Diameter 1.25 in
New Slope,If Altered 0 % Preferred manifold configuration used? 0 Yes R(No
Depth ofExcavatioa Ur dwe 24 in Transport Pipe
from Original Grade nown-stage 24 in Schedule/Class Seh.40
Designed Vertical Separation 36-08 in Length 15 ft
Gravelless Chambers Required? ❑Yes 0 No RfOptional Diameter 2 in
Pump Required? EdYes 0 No Dosing and Pump Chamber
Pump/Siphon Specifications Number ofdoses/day 4
Diff,in Elevation Between Pump&Uppermost Orifice 6 ft Dose quantity 67.5 gal
Drainfield Squirt Height/Selected Residual(bead) 8 ft Chamber Capacity(Flood) 1.000 gal
Uppermost Orifice If Higher 0 Lower than Pump Shumff Pump controls:Please check those required.
Capacity Q Total Pressure Head 25 gpm ViTimer WElapw Meta If Event Counter
CalculatedTotal Pressure Head 16 R If Timer: Pump on 2.7 min. ,pump off 5 hts.57.3 min.
Comments
The 500gal pump chamber installed in the existing sepfic tank will have a pump that will produce 15gal.per minute a111,no
15ft. head.The transport line between the pump chamber and new septic tank will be a 21nch, sch.40 pipe, 10011. In
DESIGN FORM—PAGE TWO Assessor's Parcel Number:3 2 0 2 1 — 5 0 — 0 3 0 0 5
Permit Number: SWG
)bESIGN CHECICWS'I'S
Scaled Plot Plan Scaled Layout Sketch Cross-Section Sketch
56 Test hole locations IZ Dminfield orientation and layout Reference depth from original grade:
m Soil logs ld Trench/bed dimensions and Rf Septic tank
19 Property lines critical distances within layout 9f Drainfield cover
19 Existing and proposed wells 6f D-BoxfValve box locations Reference depth from original grade
within 100 R of property 6f Septic tank/pump chamber and restrictive stars:
10 Measurements to cuts, banks,and locations 9 Laterals,trench bed,top and
surface water and critical areas 66 Observation port location bottom
It Location and orientation of 19 Clean-out location ❑ Curtain drain collector
curtain drain and all absorption Ed Manifold placement ❑ Sand augmentation
components Id Orifice placement Other cross-section detail:
m Location and dimension of 56 Lateral placement with distance lif Observation porWelean-outs
primary system and reserve area to edge of bed
m Buildings Other Information
56 Audible/visual alarm referenced Yes No
Id Direction of slope indicator 56 Scale of drawing shown on scale Rf ❑Design staked out
16 Waterlines bar ❑ ❑Recorded Notices attached
Id Roads,easements,driveways, ❑ ❑Waiver(s)attached
parking Sf ❑Pump curve attached
m North arrow and scale drawing E6 ❑Evaluation of failure
shown on scale bar Non-residential justification
❑ ❑ Waste strength
❑ ❑Flow
DESIGN APPROVAL
The undersigned designer be notified ' tal time of installation Ef Yes ❑ No
Signature of Designer Date
The undersigned has reviewed this design on behalf of Mason County Public Health and dete m
compliance with state and local on-site lations: I
L lSr _ liq
Environmental Health Specialist Date
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CAUTION: DESIGN APPROVAL IS VALID ONLY UNDER THE FOLLOWING COND Hp
✓ The design is stamped"Approved"by Mason County Public Health.
✓ The Onsite Sewage Permit has not expired,the Permit Expiation Date is:
✓ Drainfield site conditions have not been altered to adversely affect conditions ot 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 fortn may be scanned and available for public view on the Mason County Web site.
Updated Date: 12/7/2015
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LICENSED DESIGNER C vy
APPROVED
JAN 09 2025
MASON COUNTY ENVIRONMENTAL HEALTH
RET
Impeller Motor Specifications
Vortex style engineered polymer 1/3 hp 115V 5.2A
ihermallY protected and permanently lubricated
Pint Permanent Split Capacitor(PSC)
Powder coat
Max Fluid Temperature Cord`
140-F(60°C) Intermittent MODEL W 291-4
1047(40°C)Continuous duty
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nua4 no Quickconnect Wide-angle Float VMF.magnetically
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Liberty Pumps 280 - 1/2 HP Cast Iron Submersible Sump/Effluent Pump (Non-
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APPROVED
JAN 09 2025
MASON COUNTY EWRONMENTALHEALTH
RET
Installation/Maintenance
Pressure Distribution/Trench Systems
I. Install trench bottom level and in contour with the ground.
2. Install drainfield during dry weather and soil conditions.Any soil smearing must be
eliminated by hand raking any areas that get smeared.
3. Install audio/visual high water alarm.
4. Install effluent filter in septic tank outlet or pump vault with 1/16 inch maximum
filtration mesh size.
5. Install check valve in pump outlet line to prevent back-flow into the pump chamber.
6. Install 1/8 inch orifices on 4ft. centers. Install the orifices (with orifice shields)pointing
straight up ( 12:00 o' clock).
7. Divert all storm water run-off away from septic system components.
8. No curtain(french) drains allowed within 1 Oft. of the up-slope edge of the drainfield and
reserve area.
9. No curtain(french) drains allowed within 30ft. of the down-slope edge of the drainfield
and reserve area.
10.Have the septic tank and pump chamber pumped or inspected every 3 to 5 years.
11.Inspect and clean pump screen as needed.
12.Inspect floats and test high water alarm every 6 to 12 months or as needed.
13.All material and workmanship must meet County and State requirements.
14.Install risers on septic tank and pump chamber.
15.Deviation from this approved design without prior approval from the Designer and
Mason County Health Department will make this design null and void.
16.The prepared Site Plan is not a survey, it is the owner's responsibility to verify property
line locations prior to installation. Any discrepancies must be reported to the Designer
immediately.
17. Locate all utilities prior to starting installation.
APPROVED
JAN 09 2025
v MASON COUNTY ENYIRONMENTALHEALTH
RET
s' 5100214
Dale L.Tahla
LICENSED DESIGN R
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