HomeMy WebLinkAboutSWG2024-00377 - SWG Application / Design - 9/15/2025 MASON COUNTY 415 N 6TH STREET,SHELTON,WA 98584
SHELTON:360-427-9670,EXT 400
J BELFAIR:360-275-4467, EXT 400
Public Health & Human Services ELMA:360-482-5269,EXT 400
FAX:360-427-7787
On-Site Sewage System Permit: SWG2024-00377
APPLICANT Campbell, Mark Phone: 360-808-1236
Address: 2531 Conger Ct NW Olympia, WA 98502
OWNER LEE ET AL CRAIG S Phone:
Address: KIRK S LEE MILL CREEK, WA 98012
SEPTIC DESIGNER Hunter, Adam Phone: 360 753-1226
Address: 2201 93rd Ave SW Olympia, WA 98512
Site Address: E Balmoral Way
Primary Parcel Number: 321225000322
Permit Description: THIRD REVISION New SFR -2BR Oscar II
Permit Submitted Date: 09/05/2024
Permit Issued Date: 09/16/2024
Issued By: Jeff Wilmoth
Current Permit Fees Paid: $1,135.00 (additional fees may be required upon installation of system).
Permit Expiration Date: 09/09/2027 (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 Drain field 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/environmental/onsiteloss-inspection-request.php or call:
360-427-9670, extension 400.
DESIGN•FORM—PAGE ONE Assessor's Parcel Number:_3"94 aa d, - 60-- 0._0 o2s,";
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
v 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 ersize: 11"X 17"
PARCEL IDENTIFICATION P%
Permit Number: SWG (32 If ..eao37? Designer's Name: ADAM HUNTER
Applicant's Name: MARK CAMPBELL Designer's Phone Number: 360 753 1226
Mailing Address: 2531 CONGER CT NW Designer's Address: PO BOX 162
OLYMPIA WA 98502 OLYMPIA WA 98507
Ci State Zi, Ci State
Treatment Device
❑ Glendon Biofilter 0 Sand Filter 0 Mound 0 Sand Lined Drainfield 0 Recirculating Filter,Type:
❑ Aerobic Unit Make/Model 0 Disinfection Unit Make/Model Other:
Drainfield Type OSCAR II DRAINFIELD(NO PRETREATMENT)
❑ Gravity ❑ Pressure 0 Trench 0 Bed 0 Sub Surface Drip
Septic Tank/Drainfield Specifications Laterals
Number of Bedrooms 2 Schedule/Class OS-100
Daily Flow:Operating Capacity 180 gpd Length PER OSCAR ft
Daily Flow:Design Flow 240 gpd Diameter PER OSCAR in
Septic Tank Capacity 1500 gal Number 3
Receiving Soil Type(1-6) 4 Separation 0.5 ft
Receiving Soil Appl.Rate 0.6 gpd/ft2 Orifices
Required Primary Area 400 ft2 Total Number of Orifices PER OSCAR
Designed Primary Area 400 ft2 Diameter PER OSCAR in
Designed Reserve Area 400 ft2 Spacing PER OSCAR in
Trench/Bed Width 16 ft Manifold
Trench/Bed Length 25 ft Schedule/Class 40
Elevation Measurements Length 15 ft
Original Drainfield Area Slope 3 % Diameter 1 in
New Slope,If Altered 3 % Preferred manifold configuration used? gYes 0 No
Depth of Excavation Up-slope N/A in Transport Pipe
from Original Grade Down-slope NA in Schedule/Class 40 Lail
Designed Vertical Separation >24 in Length 65 ft U:
Gravelless Chambers Required? ❑Yes l'No 0 Optional Diameter 1 in ;
Pump Required? 2(Yes El No Dosing and Pump Chamber 1�'0
Pump/Siphon Specifications Number of doses/day 360 Cii
C,
Difference in Elevation Between Pump Shutoff and Uppermost Dose quantity 0.667 gal
Orifice 09
ft Chamber Capacity 1500 gal
Uppermost Orifice tY Higher 0 Lower than Pump Shutoff Pump controls: Please check those required.
Capacity @ Total Pressure Head 12 gpm MiTimer elapse Meter 'Event Counter
Calculated Total Pressure Head 16.98 ft If T• • Infn ' off 3MIN 38SEC
Comments J U N 1 1 2025
I
Printed From Mason County DMS
Printed from Mason County DMS MASON COUNTY ENVIRONMENTAL HEALTH
PAGE 1
MASON COUNTY HEALTH DEPARTMENT
ON-SITE SEWAGE DISPOSAL SYSTEM DESIGN
SITE#: PARCEL#: 321225000322
DATE SUBMITTED: 12/10/2025 LEGAULOT#: LAKE LIMERICK
LT 322
SUBMITTED BY: ADAM HUNTER
APPLICANT: MARK CAMPBELL
ADDRESS: 2531 CONGER CT NW
OLYMPIA,WA 98502
I.CALCULATIONS
NUMBER OF BEDROOMS= 2
RESIDENTIAL GPD FLOW= 240
IF NON-RESIDENTIAL-GPD FLOW
WILL BE AS FOLLOWS:
GPD=
APPLICATION RATE= 0.6 GPD/FT2
REDUCTION=LEAVE BLANK IF NO REDUCTION TAKEN
DRAINFIELD SIZING
ABSORPTION AREA= 400 FT2
TRENCH LENGTH OR BED CONFIG.= 16'X25'
PER OSCAR
II.WATERPROOF SEPTIC TANK
COMPOSITION AND SIZE= 1500 GAL-CONCRETE
NEW OR EXISTING= SEPTIC TANK
III.DRAINFIELD CROSS SECTION
SAND DEPTH= 0'-6"
IV.PRESSURE CALCULATIONS
USING PIPE CLASS 40
ORIFICE NETAFIM DRIPLINE
LENGTH DIAMETER FLOW FRICTION LOSS
SECTION (FT) (IN) (GPM) (FT)
SUPPLY 65.00 1.00 12.000 5.0403
RETURN 65.00 1.00 12.000 5.0403
TOTAL= 10.0806
"TOTAL HEAD LOSS **
1)FRICTION LOSS THROUGH SYSTEM= 10.081
2)ELEVATION DIFFERENCE = 6.900
TOTAL= 16.981
12/191,3,
;:s., APPROVED
•
DEC 152025
i� ADM!f HUNTER
1HI'I1E MASON COUNTY ENVIRONMENTAL HEALTH
IVI'f 1Y;i:�
RET
2
V.CHECK THE PUMP CAPACITY.
PUMP A.Y.MCDONALD 30GPM-1/2HP PUMP(MODEL#22050E2AJ) (PER OSCAR)
EXCESS TDH 50.00 (PER OSCAR)
TOTAL HEAD LOSS IN SYSTEM 16.98
STANDARD PUMP CONFIGURATION IS SUFFICIENT? YES
12/10/25 APPROVED
20
MASON COUNTYDEC ENVIRO15NME25NTAL HEALTH
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