HomeMy WebLinkAboutSWG2024-00466 - SWG Application / Design - 12/16/2024 416 N 6TH STREET,SHELTON,WA 98584
MASON COUNTY SHELTON:360427-275 9670,EXT 400
BEL :360 - 10.EXT 400
Public Health & Human Services ELMA:3604825269,EXT 400
FAX:360427-7787
On-Site Sewage System Permit: SWG2024-00466
APPLICANT JENKINS CHAD &CAROL L Phone:
Address: 740 E SATSOP RD W ELMA,WA 98541
OWNER JENKINS CHAD &CAROL L Phone:
Address: 740 E SATSOP RD W ELMA, WA 98541
SEPTIC DESIGNER Cindy Waite' Phone: 360-701-0205
Address: 80 E PICKERING LANE SHELTON,WA 98584
SEPTIC INSTALLER BRAYDEN SCHOENINGa Phone: 360-742-2982
Address: 121 W GRIZDALE DRIVE SHELTON,WA 98584
Site Address: 740 E Satsop Rd W
Primary Parcel Number: 619314090110
Permit Description: Repair: 3-bedroom pressure system wl sand-lined bed
Permit Submitted Date: 12/16/2024
Permit Issued Date: 01/0812025
Issued By: David Anderson
Current Permit Fees Paid: $805.00 (addmonalreaa may 6o required upon lnraunon d nnem).
Permit Expiration Date: 12/23/2026 (baaadondamoiin, bon)
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 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.gov/health/onvironmental/onsiteloss-inspection-request.php or call:
360-427-9670, extension 400.
OFFKIALUSE ONLY
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DESIGN FORM—PAGE ONE Assessor's Parcel Number: 6 1 9 3 1 — 4 0 — 9 0 1 1 0
A design will be reviewed when 3 conies of each of the following are submitted:
v Completed design form that has been signed and dated. 0 Scaled layout sketch,including all applicable items on checklist
v Scaled plot plan,including all applicable items on checklist. I Cross-section sketch,including all applicable items on checklist.
This form may be sramsed and available far public view on the Mason County Web she.Maximum paper size: /!"X/7"
7PARCEL IDENTIFICATION
Add ;740
DeeyO,2 4 Designer's Name: CINDYWAITE
D JENKINS Designer's Phone Number: 360-701-0205
E SATSOP RD W Designer's Address: 60 E PICKERING LANE
WA 98641 SHELTON WA 98584
State Zip city Stele Zip
DESIGN PARAMETERS
Treatment Device
❑Glendon Bioti ter Send F' r ❑Mound 6f Sand Lined Grainfield ❑ Recirculating Filter,Type:
❑Aerobic Unit M odel 2 ❑Disinfection Unit Make/Model Other. 6
Drainfield Type yDF
❑Gravity 1 - ysm W ❑ Trench ❑ Bed ❑ Sub Surface
Septic T rM-y "ec Ins Laterals
�Number ofSedro ucEls Schedule/Class SCHEDULE40
Daily Flow: Operating Capacltge 05,10, god Length 36 It
Daily Flow: Design Flow 360 god Diameter 125 in
Septic Tank Capacity Cworking) EXISTING 1200 gal Number 4
Receiving Soil Type( -6) 1 Separation 2 ft
Receiving Soil Appl. 1. gpd/ft= Orifices
Required Primary A 360 ft, Total Number of Orifices 60
Designed PrimaryA S60 ft, Diameter 3/16 in
Designed Reserve A 360 ft3 Spacing 2.5 in
Trench/Bed Width 10 ft Manifold
Trench/Bed Length 36 ft Schedule/Class
Elewatlon Measurements Length it
Original Drainfteld Area Slope <1 % Diameter in
New Slope,If Altered % Preferred manifold configuration used? 0 Yes 4NO
Depth of Excavation Ur-slaPe 39 BOTTOM OF SAND in Transport Pipe
from OriginalGrade awn-ylape 39BOTTOMOFSAND in Schedule/Class SCHEDULE40
Designed Vertical Separation 36 in Length 25 ft
Gravelless Chambers Required? ❑Yes 0 No 0 Optional Diameter 2 in
Pump Required? Id Yes 0 No Dosing and Pump Chamber I
Pum11{{/Siphon Specifications Number ofdows/day 6
Diff.in Elevation Betv}een Pump& Uppermost Orifice 5 ft Dose quantity 45 gal
Drainfield Squirt Height/Selected Residual(head) 2 ft Chamber Capacity(Flood) 1000 gal
Uppermost Orifice Ilf igher 0 Lower than Pump fi
Shutoff Pump controls:Please check those required.
Capacity Q Total Prss�ure Head 35.4 gpm Timer tElapse Meter IrYBvent Counter
Calculated Total Press Head 7.52 ft If Timer: Pump on Pump off
Comments
USE EXISTING tANKS AND PUMP, PUMP CONTROLS TO BE SET AT TIME OF INSTALLATION.
SET FOR 270GPQ
DESIGN FORM—PAGE TWO Assessor's Parcel Number.6 1 9 3 1 — 4 0 -- 9 0 1 1 0
Permit Number: SING
DESIGN CHECKLISTS
Scaled Plot Plan FD
ed Layout Sketch Cross-Section Sketch
Test hole locations -� i� ( no,11,eld orientation andayout Reference depth from original grade:
f�Soil logs ,� ry Trench/b. diroensions and ❑ Septic tank
[I Property lines /crttical distances within layout 01�Drainfreld cover
d Existingro sed wells U-Box/Valve box locations
mM P W Reference depth from original grade
within 100 ft of property Cr Septic tankipump chamber and restrictive stoats:
0-measurements to cuts,banks,and locations pl,} „, , p�Laterals,trench/bed,top and
surface water and critical areas G( Observation port location bottom
C�4,ocation and orientation of I]' Cleanout location ❑ Curtain drain collector
curtain drain and all absorption Manifold placement Sand augmentation
components
Orifice placement Other cross-section detail:
l( Location and dimension of 0� Lateral placement with distance 12(Observation ports/clean-outs
primary system and reserve area to edge of bed
Buildings / Other Information
19/J e Audible/visual alarm referenced Yes No
LN Direction of slope indicator 7l ^'
Scale of drawing shown onn Zile E( ❑ Design staked out
d Waterlines bar ❑ ❑ Recorded Notices attached
IX Roads,easements,driveways, ❑ ❑ Waiver(s)attached
parking .�Jkm 6. l hrl ❑ ❑ Pump curve attached
1PJ North arrow and scale drawing ❑ Evaluation of failure
shown on scale bar („�t.f-�, y}l Non-residential justification
❑ ❑ Waste strength
❑ ❑ Flow
DESIGN APPROVAL
The undersigned designer must be no[if��e wwy installer at time of installation ❑Yes ❑ No
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Signature of signer Date wA
The undersigned has reviewed this design on behalf of Mason County Public Health and determi/G'ned itI
compliance with state and local on-site reg�p ns:
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Enviro P� Ep4 ntal Health Specialist Date MgSONCO47ry NOB ZO7
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CAUTION: DESIGN APPROVAL IS VALID ONLY UNDER THE FOLLOWING CONDITION:
✓ The design is stamped"Approved"by Mason County Public Health. ? 7
✓ The Onsite Sewage Permit has not expired,the Permit Expiration Date is: ' I e7
✓ Drainfield s conditions have not been altered to adversely affect conditions of design approval. D
Please N te: The system must be installed by a certified installer,
unless ph' r 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 Date: 12/7/2015
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ORIFICE SPACING 2.5
Lateral# Length Length Orifice # Distance from Distance from end Len gth#
# ( eet) (Inches) S ach Orifices feeder line of end of lateral
1 36 4321 30 1!,l 0.5 0.5 36
2 36 432 30 15 0.5 0.5 36
3 36 432 30 15 0.5 0.5 36
4 36 432 30 15 0.5 0.5 36
144 60 147.5
TRANS LENGT
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FRICTION LID OS21J1074
Squirt 2
Elevation diffe ence 5
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LAST ORIFICE;WITH
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ORIFICE ORIENTATION 18
BACKFILL \\ "�y UPWARD
MATERIAL
6"-24"
0 PRESSURE LATERAL
PVC HOSE OR \�\\ DI' o00 AS SPECIFIED
LONG SWEEP
ELBOW DRAIN ROCK;6"MIN.
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UNDISTURBED BOIL /
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Installation Notes Q4spyp ✓qN
Sand Augmented Pressure Distribution System: ppNryFN`q�glp1f `t
61931-40-90110 240 E Satsop Dr 0✓gON71Fy
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1. This is a repair, existing drainfield full of roots and sludge HF4lTti
2. 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.
3. Pump controls to be set at time of installation
4. Install system during dry weather with acceptable soil conditions
5. Gravel based drainfield required.
S. Clean Course sand or C-33 sand to be used.
7. Install 30 mil liner down 6" into sand
8. The tanks may be moved as necessary to accommodate building requirements. Septic
tank location must meet all required setbacks.
9. Keep wheeled vehicles off the drainfield area before, during and after installation.
Tracked equipment only,
10.AI; ground, surface water and roof drains must be diverted away from the septic tanks
aid 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,
et . to divert all waters.
11. C4rtain drains can be no closer than 10' upgradient and 30' down gradient of the
dinfield
12. E posed restrictive layers, cuts, banks, etc. can be no closer than 50' downhill from the
d infield.
13. In tall access risers on the septic tanks, valve box and ends of laterals.
14. Make sure septic tank risers are epoxied or caulked to cast in riser rings on tank.
15. Lids must form a water and gas tight seal with the access risers
16. Install effluent filter specified in this design at the septic tank outlet.
17.Th s system must be installed by a Mason County Certified installer.
18. Deviation from this design without prior approval from the designer and Mason County
Health Department will make this design null and void.
19.This design was sized per Washington Administrative CodBWAC246-272A-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
ni ty gallons multiplied by 1.33. This results in a minimum design flow of one hundred
tw my gallons per day. This creates a surge factor of 33% but anticipated flow is ninety
go ons per bedroom per day.
20. Install I erals with contour of the ground
21. Install ch bottoms level and always maintain a minimum of six inches into native soil
22. Ins¢ oc r tape on top of all drainfield laterals.
23. Ins hr d clean outs at the ends of all laterals (caps must extend to within six
i ,yi ' grade and be in a valve box as shown on diagram. 1�
24. al alarm
2 tef - .e rem d over drain rock prior to backfilling. If the drain rock extends above
boo' ' ra un the filter fabric at 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. S stem owner agrees to read and abide by information regarding their system in the
U er Manual provided by Mason County Public Health.
7. K ep the flow of sewage at or below the approved design operating capacity.
8. K ep waste strength at residential waste strength parameters.
9. S read loads of laundry through the week.
10. D4 not use excessive bleach or detergents with added whiteners.
11. Do not shower, do laundry and dishwasher at the same time
12, tibiotics can kill or impair the biological process in the septic tank.
13. L ky plumbing can hydraulic overload your on-site septic system.
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