HomeMy WebLinkAboutSWG2023-00368 - SWG Application / Design - 9/1/2023 584
MASON COUNTY SNfiTHELTON: SHELTON,
70,EXT 400
SHELTON:360-42]-96]0,EXT 400
BELFAIR'.360-2]5-446],EXT 400
_ i- Public Health & Human Services ELMA.360-482-5269,EXT 400
FAX:360-427-7787
On-Site Sewage System Permit: SWG2023-00368
APPLICANT MOORE BARRY C & DANNA L Phone:
Address: 1225 NW STATE ST PULLMAN, WA 99163
OWNER MOORE BARRY C & DANNA L Phone:
Address: 1225 NW STATE ST PULLMAN, WA 99163
SEPTIC DESIGNER PAULA JOHNSON -Arrow Septic Phone: 360-898-2255
Designs Inc.
Address: 171 E VUECREST DRIVE UNION, WA 98592
SEPTIC INSTALLER Shane Maples- MAPLES EXCAVATING Phone: 360-463-8474
Address: 911 SE Arcadia Road SHELTON, WA 98584
Site Address: 150 N Potlatch Rd
Primary Parcel Number: 422235000081
Permit Description: 4-bedroom pressure system repair w/sand lined bed
Permit Submitted Date: 09/01/2023
Permit Issued Date: 10/11/2023
Issued By: David Anderson
Current Permit Fees Paid $780.00 additional may be required upon installation of system).
Permit Expiration Date: 09/20/2024 (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 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 055.
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/environmental/onsite/oss-inspection-request.php or call:
360-427-9670,extension 400.
---- -- OFFICIAL USE ONLY ----- ---
`-- MASON COUNTY DA-IAECMED q l- a v s
' COMMUNITY SERVICES ° 3 `CO 0)
41. Public Health(Community Health/F� nmental Health) CO
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„5NsmLea.RTIm�;9.Me,... SWG '> 0 Oa_ ? o 2
Z a
ON-SITE SEWAGE SYSTEM APPLICATION n n
3 n
APPLICANT PHONE m m
Barry & Danna Moore (509) 432-9659 o z
MAIJNG ADDRESS-STREET CITY STATE.CAP CODE g O
3
1225 NW State St Pullman WA 99163 = CD
SITE ADDRESS.STREET.CITA LA CODE 0 xi
150 N Potlatch Rd Shelton WA 98584 . I a
NAME OF DESIGNER PHONE I
Arrow Septic Designs (360)898-2255 0 N
NAME OP INSTALLER PHON= MI I N
Maples Excavating (360) 463-8474
m I N
PERMIT TYPE(select one) DRINKING WATER SOURCE O
Ii RESIDENTIALOSS FCOMMUNITY O55 FCOMMERCIAL OSS F PRIVATE INDIVIDUAL WELL tf PRIVATE TWO-PARTY WELL 2 I W
PE OF WORK)aekd one) p 2 PUBLIC WATER SYSTEM
TYPE
F NEW CONSTRUCTION I UPGRADES Mr.REPAIR I REPLACEMENT OTHER DETAILS(sered a)fmal apply) ❑TABLE IX REPAIR I in
SUBMITTALS 0 SURFACING SEWAGE Eli EXISTING FAILURE 0 SHORELINE
Ig DESIGN FORM(REQUIRED) [y p1 SEPTIC DESIGN(REQUIRED) BEDROOMS LOT SIZE CO
Q I °
N WAIVER(S)(IF APPLICABLE) 2—>4 BR Upgrade 1.25 Acres o .
Jc I 0
DIRECTIONS TO SLTE AND SITE CONDITIONS(ex Scored gets)
Take US Highway 101. Turn right onto N Potlatch Rd. "150" on gate post. I 10
6 Ic)
ti
coIco
'SITE MUST BE NUDGED FROM MAIN ROAD AND TEST HOLES MUST BE FLAGGED Agra TEST HOLE NUMBERS. I -1
-- ---OFFICIAL USE ONLY BELOW THIS LINE ----
UPGRADE I FAILURE SOURCE(for eponlng Purposes)
❑VOLUNTARY 0 MAINTENANCE/PUMPING BL% I119�PERMIT O){OME SALE OCOMPLAINT DOTHER-
INSPECTOR SOIL LOGS It] VN/,PV���/� COMMENTS/CONpTIONS
/1- o- ?ILL EE, c5 626578 yzeI
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7HZ O 7Z F__(1 CJ g5 %a jrafre/ I , :
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SOIL CODES: RECORD(NU VANGANC INSTALLATION REPQRt
V'VERY 3=GRAVELLY S=SAND L=LOAM Si=SILT C=CLAY E=EXTREMELY R=ROOTS REQUIRED FOR FINA_APPROVAL
INS
P1MI5FORM MAY BE SCAN EDANO AVAILABLE FORPUBLICWEWON THE MASON COUNTY WEBSITE�°LICA ION APPROVEP�V D REVISED)L]/zb5 DATE-
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DESIGN FORM-PAGE ONE p�p ��pf�Assessor's Parcel Number: 4 2 2 2 3 - 5 0 - 0 0 0 8 1
A design will be reviewed when 34 conies Oft2M�df`tM following are submitted:
"Completed design form that has been signed and dated. "Scaled layout sketch,including ail applicable items on checklist
"Scaled plot plan,including all applicable items on checklist. "Cross-section sketch,including all applicable items on checklist.
This form may be scanned and available for public view on the Mason County Web site.Maximum paper size: II"X 17"
_ _ ..'k PAR 'TDENTIP'ICA.TION
Permit Number: SWG 20 23-00368 Designer's Name: Arrow Septic Designs, Inc
Applicant's Name: Bony&Donna Moore Designer's Phone Number: (360)898-2255
Mailing Address: 1225 NW State St Designer's Address: 171 E Vuecrest Dr
Pullman WA 99163 Union, WA 98592
City State Zip City State Zip
`DESIGNPARAMETFRS
Treatment Device
❑Glendon Biofilter ❑Sand Filter 0 Mound NiSand Lined Drainfield 0 Recirculating Filter,Type:
❑Aerobic Unit Make/Model 0 Disinfection Unit Make/Model Other:
Drainfield Type
❑Gravity gPressure 0 Trench 61I Bed 0 Sub Surface Drip
Septic Tank/Drainfield Specifications Laterals
Number of Bedrooms 2->4 Schedule/Class 40
Daily Flow:Operating Capacity 360 gpd " Length 30 ft
Daily Flow:Design Flow 480 gpd Diameter 1.25 in
Septic Tank Capacity(working) 1,200 gal — Number 8
Receiving Soil Type(1-6) 3 - / Separation 2_5 ft
Receiving Soil Apo].Rate0.8 gpd/ft2/ Orifices
Required Primary Area 600 ft- Total Number of Orifices 104
Designed Primary Area 600 ft° — Diameter 5/32 in
Designed Reserve Area 600 ft2 Spacing 28 in
Trench/Bed Width 10 ft i- Manifold
Trench/Bed Length (2)30 ft Schedule/Class 40
Elevation Measurements Length 7.5 ft
Original Drainfield Area Slope 0-1 % Diameter 125 in
New Slope,If Altered 0-1 % Preferred manifold configuration used? h'Yes 0 No
Depth of Excavation Up-slope 30+24=54 in Transport Pipe
from Original Grade Doom-slope 24+24=48 in Schedule/Class 40
Designed Vertical Separation 18+ in Length 240 ft
Graveness Chambers Required? ❑Yes BiNo 0 Optional Diameter 2 in
Pump Required? g Yes 0 No Dosing and Pump Chamber
Pump/Siphon Specifications Number of doses/day 4
Diff.in Elevation Between Pump&Uppermost Orifice 20 ft Dose quantity 120 gal
Drainfield Squirt Height/Selected Residual(head) 5 g Chamber Capacity(flood) 1,500(1,200 min) gal
Uppermost Orifice El Higher 0 Lower than Pump Shutoff Pump controls:Please check those required.
Capacity @ Total Pressure Head 66 56 gam gTimer ftdElapse Meter fiX Event Counter
Calculated Total Pressure Head 41.41 ft If Timer: Pump on 1.5 minutes ,pump off 6 hours
Comments
DESIGN FORM-PAGE TWO Assessor's Parcel Number:4 2 2 2 3 - 5 0 -- 0 0 0 8 1
Permit Number: SWO 20 23 - 00$1,8
DESIGN CHECKLISTS
Scaled Plot Plan Scaled Layout Sketch Cross-Section Sketch
66 Test hole locations Drainfield orientation and layout Reference depth from original grade:
(d Soil logs Trench/bed dimensions and g Septic tank
Property lines critical distances within layout Drainfield cover
❑ Existing and proposed wells D-Boxy Vahe box locations Reference depth from original grade
within 100 ft of property g Septic tank/pump chamber and restrictive strata:
❑ Measurements to cuts,banks,and locations g Laterals,trench/bed,top and
surface water and critical areas g Observation port location bottom
❑ Location and orientation of g Clean-out location 0 Curtain drain collector
curtain drain and all absorption 54 Manifold placement g Sand augmentation
components
Hi Orifice placement Other cross-section detail:
60 Location and dimension of Lateral placement with distance g Observation ports/clean-outs
primary system and reserve area to edge ofbed,,��qq-��,,tt,, Other Information
Cb Buildings Audible visula�rtn referenced Yes No
tit( Direction of slope indicator Hi Scale of dr tn on scale El 0 Design staked out
❑ Waterlines bar � ❑ C11 Recorded Notices attached
❑ S Waiver(s) attached
Hi Roads,easements,driveways. •d, • eKt}
parking Y ^ : , g 0 Pump curve attached
.x�
• North arrow and scale drawing 1 g ❑Evaluation of failure
shown on scale bar sro w .g. Non-residential justification
p PAULA JOY Jn'NN ❑ l�Waste strength
61sxs =nit ss_ , 0
Gil Plow
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DESIGN APPROVAL
The undersigned designer must b noti pLi b 'nstal er at time of installation g Yes ❑ No
/O-(c2-Z'S
Signature of Designer Date -
The undersigned has reviewed this design on behalf of Mason County Public Health aka determined it to be in
compliance with state and local on-site ulations: n fi
/
0/1l/1a15 0�l
Envno oral Healt Specialist Date
CAUTION: DESIGN APPROVAL IS VALID ONLY UNDER THE FOLLOWING CONDITION:
✓ The design is stamped"Approved"by Mason County Public Health.✓ !,/�/t�l The Onsite Sewage Permit has not expired,the Permit Expiration Date is: Y !j
✓ 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 Date: 12/7/2015
Arrow Septic Designs
171 E. Vuecrest Dr.
Union, WA 98592
October 5, 2023
Mason County Department of Health Services
415 N 6th St
Shelton, WA 98584 •
RE: Barry&Danna Moore(Parcel'342223-50-00081) Septic Evaluation & Upgrade Letter
Dear Inspector:
Attached is a replacement/upgrade septic design for a property located at 150 E Potlatch Rd, Shelton, WA
98584. There is an existing 2-bedroom home built in 1960 that ties into a gravity septic system installed in
1950. The existing septic system has a 500-gallon septic tank followed by 50 I.f. of gravity drainfield.
The owner has been having issues with the septic system and because of its age and condition,they have
decided to upgrade it. The home has been used for part-time use and will soon be a full-time residence.
Since the septic needs to be upgraded, the owner wants to up-size the septic to a 4-bedroom capacity.
The existing septic tank is to be decommissioned or removed and the old drainfield is to be abandoned.
There will be a new 1,200 gallon 2-compartment(operating capacity) septic tank with an effluent filter
followed by a new oversized 1,500-gallon pump chamber, (1,200 gallon minimum flood capacity).
Due to extremely gravelly soils,the new drainfield will consist of 600 s.f. of sand-lined pressure bed using an
application rate of 0.8. The system will also have a control panel including timed dosing, a counter and
elapse meter to prevent overuse and facilitate ongoing operation and maintenance. This is a compliant repair
with 18"+ of vertical separation. The tanks are over 50 feet and the drainfield is over 100' away from Hood
Canal. The property is on a water system and there are no known wells nearby. We have also shown a full
reserve drainfield area.
The property owner's contact information is as follows:
Barry& Danna Moore
1225 NW State St
Pullman, WA 99163
(509)432-9659
If you need further information,please contact my office at(360)898-2255.
Sincerelyq
tf ,
JOHNSON PPUr JU JOHNSON
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Lr�on to astewater Treatment System Designer
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(L-°u 2 4) 3 1200 Gallon Septic Tank
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fLA'2GTLSREEP:vO FD O=Observation Port-to be 4"pa-rotated
2S PVC pipe from bottom of bed to finished
DETAIL Bede: A removable®shall be installed on
c OUT observation port pipe Glue"T`on bottom
VOTE, OTPLNOOT TO
TO BE FROM 0 TO 6 so pipe can't be removed.
INCNFS aHA1i FINISKEO GRADE. 8 m system,one in each corner.
MARE REDS WITH ItOF L. CLEAN Aux Mh syste e)
REQUIRED AT ^_9D OF LACE LATE.<AL. Laterals are to be centered in trendies. r
Length Length Orifice # Distance from Distance from
Lateral# (In.) (Ft.) Spacing Orifices Feeder Line(In.) Cleanout(In.)
1 360 30 28 13 12 12
2 360 30 28 13 12 12
3 360 30 28 13 12 12
4 360 30 28 13 12 12
5 360 30 28 13 12 12
6 360 30 28 13 12 12
7 360 30 28 13 12 12
8 360 30 28 13 12 12
Total Lateral Length 240
Total#Orifices 104 GPM = 66.56
(with 5/32 orifices)
Dynamic Head Calculations
Selected residual pressure: 5 ft.
Length (Ft.) #Orifices
Transport Pipe 240 104 14.05 ft.
Feeder Total
Lateral Line Length
Lateral#1 30 4 34 13 0.30 ft.
Lateral#2 30 2 32 13 0.29 ft.
Lateral#3 30 2 32 13 0.29 ft.
Lateral#4 30 4 34 13 0.30 ft.
Lateral#5 30 4 34 13 0.30 _ ft.
Lateral#6 30 2 32 13 0.29 ft.
Lateral#7 30 2 32 13 0.29 ft.
Lateral#6 30 4 34 13 0.30 ft.
Total Elevation Lift H 20.00 ft
.
Total Dynamic Head tee, 41.41 ft.
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Septic Tanks must meet standards required by WAC chapter 246-272C and
manufacturer must be on Dept of Health list of registered sewage tanks. FIGURE 2
Quota Septic `eoigne . jaC6 �
INSTALLATION & MAINTENANCE
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Pressure Distribution Systems—Sand Lined Bed y, : 5,„yJ9
'6 PAUTA JOY JOHNSON‘.
1. Install Laterals with contour of the ground. gs ��`- 1GNEYt"
Fxna s Ti
2. Install bed bottom level.
3. Install locator tape or rebar at each end of all drainfield laterals.
4. Install observation ports as indicated on the plot plan. One required in each corner of the
bed. Two with bottom extending to the bottom of the drainrock and two extending to the
sand/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. Install threaded clean-outs at the end of all laterals(cap must extend to within six inches
of finished grade and be marked with locator tape or rebar).
7. Install audio/visual high water level alarm. Redundant off switch required.
8. Install 1/8"mesh non-corrosive pump screen(min. 12 sq. ft. surface area, not to interfere
with controls or floats.) Or pump screen may be substituted with Bio-Tube in septic tank.
Pull bio-tube every 6-12 months and flush back into tank.
9. Install check valve in pump outlet line to prevent system from draining back into the
pump chamber.
10. Tee to Tee construction between laterals and manifold with orifices oriented at 6 o'clock.
Install laterals to the manifold with the orifices at 12 o'clock, (do not glue), after pressure
test and Environmental Health Dept. approval, turn orifices down(6 o'clock)and glue
laterals to manifold. Orifice shields may be used with orifices in the 12 o'clock position
in lieu of turning the orifices down to the 6 o'clock position.
11. 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.
12. Encase all water lines within 10' of drainfield and under any driveway/parking areas.
13. Divert all storm water runoff away from on-site sewage system.
14.No curtain drains allowed within 10' of the up-slope edge or 30' of the down-slope edge
of the drainfield and reserve area
15. Have the septic tank and pump chamber pumped or inspected every 3 to 5 years.
16.No vehicular traffic over drainfield area
17. Inspect floats, clean filters, and test high water level alarm every 6-12 months as needed.
18. All materials and workmanship must meet County and State regulations.
19. Deviation from this design without prior approval from the Designer and Mason County
Environmental Health Department will make this design null and void.
20. All manhole lids and access,sampling or inspection ports must have locking covers and
be located at ground level.
21. All pressure systems with a pump chamber outlet higher than the drainfield must have a
1/8"hole drilled in the discharge pipe above the pump to prevent siphoning.
22.All transport lines under driveways or parking areas must be encased to prevent crushing.
23. Homeowner is responsible for all property lines.
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