HomeMy WebLinkAboutSWG2021-00288 - SWG Application / Design - 5/28/2026 OFF)1A1 USE ONLY
MA ON COUNTY DATE RECEIVED: O6/ 7/ o
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Public Health & Human Services AM0UNTRECEIVED: RECEIVED BY: ❑ Cl)
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Environmental Health 360-427-9670,ext.400 or 360-275-4467,ext.400 Cl)
415 N.6th Street-Shelton,WA 98584 SVV ^/G O2 t I _
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ON-SITE SEWAGE SYSTEM APPLICATION
APPLICANT PHONE m m
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DAVID MUSSELMAN 206-3195799 W o z
MAILING ADDRESS-STREET,CITY,STATE,ZIP CODE
990 KAZAC PL SE, PORT ORCHARD, WA 98366 m
SITE ADDRESS-STREET,CITY,ZIP CODE N
51 E PENDRAGON DR I r� I
N
NAME OF DESIGNER PHONE
JUSTIN W COOPER 253-376-0479 �' N
NAME OF INSTALLER PHONE L ❑ I
DODGE EXCAVATION LLC /TESSA HOLT 360-349-5333
PERMIT TYPE(select one) �- DRINKING WATER SOURCE O
W RESIDENTIAL OSS L i]COMMUNITY OSS li(COMMERCIAL OSS Imo'PRIVATE INDIVIDUAL WELL PRIVATE TWO-PARTY WELL Z I y�
TYPE OF WORK(select one) jij PUBLIC WATER SYSTEM
WI NEW CONSTRUCTION/UPGRADES 1REPAIR/REPLACEMENT OTHER DETAILS(select all that apply) ❑ TABLE X REPAIR
SUBMITTALS 0 SURFACING SEWAGE ❑ EXISTING FAILURE 0 SHORELINE W
❑� DESIGN FORM(REQUIRED) Q SEPTIC DESIGN(REQUIRED) BEDROOMS LOT SIZE WAS LOT CREATED AFTER4/1/20257
❑ WAIVER(S)(IFAPPLICABLE) 4 1.15 ■ YES NO 0
DIRECTIONS TO SITE AND SITE CONDITIONS:(ex.locked gate)
TAKE 302 WEST. TAKE RIGHT ON E PENDRAGON DR IQ
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SITE MUST BE FLAGGED FROM MAIN ROAD AND TEST HOLES MUST BE FLAGGED WITH TEST HOLE NUMBERS.
OFFICIAL USE ONLY BELOW THIS LINE
UPGRADE I FAILURE SOURCE(for reporting purposes)
❑VOLUNTARY ❑MAINTENANCE/PUMPING❑ BUILDING PERMIT❑HOME SALE❑ COMPLAINT ❑OTHER:
INSPECTOR SOIL LOGS COMMENTS/CONDITIONS
� I II2r
RECORD DRAWING AND INSTALLATION REPORT
SOIL CODES:
V=VERY G=GRAVELLY S=SAND L=LOAM Si=SILT C=CLAY E=EXTREMELY R=ROOTS REQUIRED FORFINALAPPROVAL.
INSPECTOR SIGNATURE DATE APPLICATION EXPIRATION DATE APPLICATION APPROVED!SSUED BY DATE
THIS FORM MAY BE SCANNED AND AVAILABLE FOR PUBLIC VIEW ON THE MASON COUNTY WEBSITE Revised:6/3/2025
DESIGN FORM-PAGE ONE Assessor's Parcel Number: 1 2 2 1 6 7 5 9 01013 2
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. '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: 11"X17"
PARCEL IDENTIFICATION
Permit Number: SWG 2021-00288 Designer's Name: JUSTIN W COOPER
Applicant's Name: DAVID MUSSELMAN Designer's Phone Number: 253-376-0479
Mailing Address: 990 KAZAC PL SE Designer's Address: 12201 OSPREY DR NW
POFROF RDWA983W City State Zip GIG HARBOR WA 95332
City State Zip Designer's Email C00PJUSTIN@GMAIL.00M
DESIGN PARAMETERS
Treatment Device
❑Glendon ❑Sand Filter ❑Mound ❑ Sand Lined Drainfield ❑Recirculating Filter ❑ATU ❑Other
Treatment Level(check all that apply): ❑A O B ❑C ❑BLl ❑BL2 ❑BL3 O E ❑N
Drainfield Type
Gravity ❑Pressure ❑Trench O Bed O Sub Surface Drip
Septic Tank/Drainfield Specifications Laterals
Number of Bedrooms 4 Schedule/Class - 5t
Daily Flow: Operating Capacity JkL) 480 gpd Length 70 ft
Daily Flow:Design Flow 480 gpd Diameter in
Septic Tank Capacity(working) 1537 gal Number 4
Receiving Soil Type(1-6) 4 Separation 7 ft
Receiving Soil Appl.Rate .6 gpd/ft2 Orifices
Required Primary Area 800 ft2 Total Number of Orifices
Designed Primary Area 800 ft2 Diameter in
Designed Reserve Area 8 ft2 Spacing in
Trench/Bed Width 3 ft Manifold
Trench/Bed Length 280 ft Schedule/Class 40
Elevation Measurements Length ft
Original Drainfield Area Slope 20 % Diameter 2 in
New Slope,If Altered % Preferred manifold configuration used? ❑Yes ❑No
Depth of Excavation Up-slope 24 in Transport Pipe
from Original Grade Down-slope 16 in Schedule/Class SCH40
Designed Vertical Separation 37 in Length 90 ft
Gravel-based Drainfield Required? ❑Yes PJ No Diameter 2 in
Pump Required? P'Yes O No Dosing and Pump Chamber
Pump/Siphon Specifications Number of doses/day 6
Diff.in Elevation Between Pump&Uppermost Orifice 23.4 ft Dose quantity 80 gal
Drainfield Squirt Height/Selected Residual(head) N/A ft Chamber Capacity(flood) 1287 gal
Uppermost Orifice IHigher O Lower than Pump Shutoff Pump controls:Please check those required.
Capacity @ Total Pressure Head 10 gpm I!!' Timer 9 Elapse Meter 9 Event Counter
Calculated Total Pressure Head 30 ft If Timer: Pump on 3MIN 2 ,pump off__4 HOURS
Comments A P F U,V E D
MAY 28 2026
RRA 'f''
In i¼JUIii cn YIR I fit AL HLI IIRevised: 6/11/2025
RET
DESIGN FORM—PAGE TWO Assessor's Parcel Number:11 2 2 1 6 7 5 9 0 ``0 3 12
Permit Number: SWG 2021-00288
DESIGN CHECKLISTS
Scaled Plot Plan Scaled Layout Sketch Cross-Section Sketch
V Test hole locations l ' Drainfield orientation and layout Reference depth from original grade:
V Soil logs V Trench/bed dimensions and V' Septic tank
V Property lines critical distances within layout 8' Drainfield cover
V Existing and proposed wells V D-Box/Valve box locations Reference depth from original grade
within 100 ft of property V Septic tank/pump chamber and restrictive strata:
' Measurements to cuts,banks, and locations 9 Laterals,trench/bed,top and
surface water and critical areas V Observation port location bottom
Location and orientation of ld Clean-out location 0 Curtain drain collector
curtain drain and all absorption ❑ Manifold placement 0 Sand augmentation
components 0 Orifice placement Other cross-section detail:
V Location and dimension of V Lateral placement with distance le Observation ports/clean-outs
primary system and reserve area to edge of bed
V Buildings Other Information
Audible/visual alarm referenced Yes No
Direction of slope indicator V Scale of drawing shown on scale 0 'Design staked out
Waterlines bar ❑ ('Recorded Notices attached
V Roads, easements,driveways, 'Elevation benchmark and relative 0 VWaiver(s)attached
parking elevations of system components V 0 Pump curve attached
ET North arrow and scale drawing 0 VEvaluation of failure
shown on scale bar Non-residential justification
❑ ❑ Waste strength
❑ ❑ Flow
DESIGN APPROVAL
The undersigned,.designer must be notified by installer at time of installation VYes 0 No
5-27-26
Sign tore f Desig Date
The undersigned has reviewed this design on behalf of Mason County Public Health and determined it to be in
compliance with state and local on-site regulations:
Environmental Health Specialist Date
CAUTION: DESIGN APPROVAL IS VALID ONLY UNDER THE FOLLOWING CONDITION:
✓ The design is stamped"Approved"by Mason County Public Health. I
✓ 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.
An Installation Fee is required.
This form may be scanned and available for public view on the Mason County Web site. Revised: 6/11/2025
NPORrANTNOPCE
HIS IS NOTA SUR'EY. THE INFORMATION AND LOCATIONS SHOWN
EREIN ARE DERIVED FROM PUBLIC RECORDS,OWNER STATEMENTS,
ND FIELD OBSERVATIONS.NO WARRANTY IS EXPRESSED OR IMPLIED I
S TO ACCURACY WE RECOMMEND THAT WHEN QUESTIONS EXIST,
HE OWNER OBTAIN THE SERVICES OFA LICENSED PROFESSIONAL LAND
URVEYOR PRIOI TO CONSTRUCTION OR RELIANCE ON THIS INF9p1tJQBC4}IISLON. I �\
HIS INFORMATION IS ONLY INTENDED FOR THE PURPOSES OF SEP110 I I \
YSTEM CONSTRUCTION AND AS-BUILT LOCATING.
- I I
1\\. / $Iji EDA CE . ,y SCALE 1 = 30
; 1 0 5 30 60
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I \ :. \ . . . I_. . . . .' . . \. . . . . . . . . . . . . . \ ,. R: PROPOSED RESERVE DRAINFIELD
I \ \ / .-h/j , _-!-r-/r r r r /r DRIP IRRIGATION WITH A PRETREATMENT DEVICE
\ \ '°o \ • \\ — / /r r r i r/, MEETING TREATMENT LEVEL"8"750LF
-\ \\ 94iG \\ : :%. . !W1 !////////i i/i / OF NETAFIM 08WRAM.4-12 1/2"DRIP LINE 2'OC
I \ \ PROFS SEDWATERLINE •\• \ do//r/rr////,/// !;' 5'
II \ \ \. . ' ' . . . • ' . . . \ /ii i i° / i i i DATE: 5/15/2026
I \\ \\ \\ \\ i Ili i i,;,///,/ 7 pii�
b I \ \ \ \ PROPOSED 2"s it/'ri/r' f
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O?_ JUSTIN W.COOPER
\ `L \ \ \ \ =I / LICENSED DESIGNER
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PORT
TANK NOTES (TYP) TBM:REBAR/CAP MASON COUNTY ENVIRONMENTAL HEALTH
SOIL LOG:TAKEN BY LAWRENCE PURDUM ELEV:119' FT
SL 1:TYPE 4/0.6 GAL/FT2 DAY [1]INFILTRATOR IM-1530/1537 GAL WORKING VOL HEALTH DEPT APPROVAL
00-20"DARK BROWN LOAMY FINE SAND 1,787 FLOOD CAPACITY TWO COMPARTMENT SEPTIC TANK PRIMARY PRIMARY DRAINFIELD
20--27"LOAMY BROWN LOAMY FINE SAND PUMP TO GRAVITY DISTRIBUTION WITH p
27-37"ROOTS BROWN LOAMY FINE SAND 121 INFILTRATOR CM-1060/1094 GAL WORKING VOL 280LF 9"GRAVELESS CHAMBERS 7'OC SEPTIC SYSTEM IDESIIN
37-61"LOAMY BROWN FINE SAND 1,287 FLOOD CAPACITY/SINGLE COMPARTMENT PUMP TANK 36"WIDE TRENCHES 800 SQ FTABSORBTION AREA
SL2:TYPE 4/0.6 GAL/FT2 DAY CLIENT. DAVID MUSSLEMAN
00-12"DARK BROWN LOAMY FINE SAND CONTACT 360-229-3118
12-24"ROOTED BROWN LOAMY FINE SAND WITH SCATTERED GRAVEL
24-44"GRAVELLY LOAMYBRO WN MEDIUM SAND ADDRESS: 51 E PENDRAGON DR
ROOTS COMMON TO 35" PARCEL: 122167590032
SL3:TYPE 4/0.6 GAL/FT2 DAY
00-10"DARK BROWN LOAMY FINE SAND
10-37"ROOTED BROWN LOAMY FINE SAND WITH SCATTERED GRAVEL
37-45"LOAMY BROWN LOAMY FINE SAND
ROOTS TO 36"
SL4:TYPE 4/0.6 GAL/FT2 DAY PAGE 1 OF 2
00-10"DARK BROWN LOAMY FINE SAND
10-52"ROOTED BROWN LOAMY FINE SAND WITH TRACES OF GRAVEL AND SCATTERED COBBLE O ESCOO) §NC
ROOTS COMMON TO 40" u V
12201 OSPREY DR NW
GIG HARBOR, WA 98332
253-376-0479 coopjustin@gmail.com
-SITE ASSESSMENTS- -SEPTIC SYSTEM DESIGNS- •SOILANALYSIS*
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PUMP TO GRAVITY DISTRIBUTION SEPTIC NOTES: PUMP CHAMBER DESIGN NOTES: GRAVELLESS TRENCH DETAIL
MINIMUM 6" MINERAL SOIL COVER REQUIRED
1. CONSTRUCTION AND MATERIALS SHALL CONFORM TO THE LATEST 1. THE WETWELL SHALL BE A HEALTH DEPARTMENT APPROVED, DOUBLE
REGULATIONS AND REQUIREMENTS OF THE COUNTY HEALTH DEPARTMENT COMPARTMENT WATERPROOF CONCRETE TANK WITH A MINIMUM 1070 TRENCHES EXCEEDING 36" DEPTH REQUIRE VENTS
AND W.S.D.O.H. THIS SYSTEM REQUIRES PERIODIC MAINTENANCE. THE GALLON CAPACITY INFILTRATOR CM-1060 A RISER TO GRADE IS REQUIRED. WISHED GRADE
SIMPLEX, 0
VISU
AL
LAN D
ORGINAL GRADE
SJE RHO BUS T D MP
CERTIFICATION OF THE DESIGN AND INSTALLATION DOES NOT INSURE 2. ATIMER IS REQUIRE
D, M
- -
ELEC
TRICAL
I CAL PE
RMITS AS NE
EDED
m �
CONTINUOUS TROUBLE FREE OPERATI
ON. AUDIBLE ALARM SYSTEM
. OBTAIN ALL REQUIRED
4 E CYCLE
S
6HOURS BETWEEN
BENCHMARKS, CYCLES PER DAY R
IS NOT A SURVEY, TOPOGRAPHY, AND _
2.THIS 3. TIMER CONTROLS TO BE SET TO _ . _ "PVC OB PORT
ON ASSUMED DATUM, FIELD OBSERVATIONS, 80 GALLO S
ELEVATIONS ARE BASED FLOAT SETTINGS: GALLONS PER CYCLE SHALL BE N .HIGH �
4.
OWNER STATEMENTS,AND PUBLIC RECORD. IF BOUNDARY CONTROL IS WATER ALARM TO BE SET AT 760 GALLONS. W Lu
NOT AVAILABLE AND CLEAR,A SURVEY SHOULD BE OBTAINED PRIOR TO
5. TRANSPORT LINE SHALL BE SCH 40 PIPE DIAMETER 2" LENGTH: 92LF � = I -GRAVELLESS CHAMBER
COMMENCING INSTALLATION. PLEASE CONTACT A PROFESSIONAL LAND 6. D-BOX SHALL BE AT ELEVATION ABOVE THE DRAIN INVERT o z
SURVEYOR TO HAVE THIS SERVICE PERFORMED. AND SET IN A SECURED ENCLOSURE WITH A LID AT GRADE. MANIFOLD
3. NO EXCAVATION OR ALTERATIONS AFFECTING DRAINFIELD AREAS ARE W Lu 8" ORIGINAL UNDISTURBED
LINE TO BE A SCH 40 PVC PIPE 4" DIAMETER. NATIVE SOIL
PERMITTED. ANY ENCROACHMENTS INTO DRAINFIELD AREAS MAY 7. LATERALS SHALL BE SCH 40 PVC PIPE 4" DIAMETER.
RENDER THE SITE UNUSABLE. REDESIGNS REQUIRED DUE TO ^SCH 40 PVC LATERAL
ENCROACHMENTS WILL BE AT OWNERS EXPENSE. 8. LATERAL SPACING 7' FEET ON CENTER. INSTALL MONITORING PORTS
4. THE SEPTIC TANK IS TO BE A WATER TIGHT,WASHINGTON STATE ON EACH LATERAL PER TYPICAL,AND VENT USING CARSON ENCLOSURE. Z Q I 36"
APPROVED INFILTRATOR IM-1530 TWO COMPARTMENTS WITH MINIMUM 10. HEAD CALCULATIONS: *RESTRICTIVE LAYER @ 62"
1500 GALLON CAPACITY. 24" DIAMETER RISERS WITH COMPATIBLE LOCKING
LIDS ARE TO BE INSTALLED OVER MANHOLES. 8" RISERS WITH SCREW CAPS TRANSPORT 9_0'
ARE REQUIRED OVER INLET AND OUTLET PORTS. ALL RISERS ARE TO BEAT MANIFOLD 0_0'
FINISHED GRADE, WATERPROOF AND CHILD/TAMPER RESISTANT. INSTALL RESIDUAL 1_0 MONITORING PORT ENCLOSURE:
PL-122 POLYLOCK EFFLUENT FILTER AT SEPTIC TANK OUTLET. ALL TANK TOTAL DYNAMIC HEAD IS CALCULATED AT 10.0' CARSON INDUSTRIES L 708,OR EQUAL WITH 6"PVC TO BOTTOM OF ROCK
PENETRATIONS SHALL BE MADE WATERTIGHT. PLUMBING STUBOUT TO 11. REQUIRED PUMP CAPACITY IS CALCULATED AT 30 GPM PLUG IN SLEEVE THREADED CAP OR PLUG
BE NO DEEPER THAN 1' BELOW FINISH GRADE. 12.THE PUMP SHALL BE A LIBERTY280 SERIES OR EQUIVALENT4O ERTYPUMP 280 SERIES 1/2HP 6" PVC
5. TANKS, WETWELLS,AND SEWER LINES UNDER DRIVING SURFACES 13.AS BUILT INSPECTION: A FEE WILL BE CHARGED TO
MUST BE CRUSH PROOF AND MEET D.O.T. LOADING SPECIFICATIONS. THE OWNER FOR THIS SERVICE. THE INSTALLER MUST BACKFILL
6. THE DRAINFIELD TRENCHES SHALL BE A MINIMUM OF TEN FEET CONTACT DESIGNER TO REQUEST MATERIAL
FROM PROPERTY AND EASEMENT LINES,TEN FEET FROM WATER LINES ���������
�\i PRESSURE LATERAL
AND BUILDING FOUNDATIONS, 100 FEET FROM WELLS. ELEVATIONS: 1- 30 AS SPECIFIED
7. WATER LINES MUST BE A MINIMUM OF TEN FEET FROM SEPTIC TEMPORARY BENCH MARK: 119' (REBAR CAP) LL \\�
COMPONENTS. WATER LINES CROSSING SEWER TRANSPORT LINES MUST PLUMBING STUBOUT: 91.0' Z PVC HOSE OR L
CROSS ATA MINIMUM OF 18 INCHES ABOVE SEWER LINES AND BOTH PIPES SEPTIC TANK INLET: 90.4' Q SWEEP ELBO /\�j\\
MUST BE SLEEVED TEN FEET EITHER SIDE OF CROSSING. SEPTIC TANK OUTLET' 90.2' W UNDISTURBED IL "PVC WITH DRAIN HOLES;
8. THE INSTALLER SHALL CONTACT THE DESIGNER UPON COMPLETION OF WETWELL INLET: 89.9' J 20 EXTEND TO BOTTOM OF CHAMBER
SYSTEM FOR FINAL AS-BUILT INSPECTION (SEE DETAILED INFORMATION PUMP ELEVATION: 85.9' Q TO MONITOR PONDING
REGARDING AS-BUILT REQUEST). A FEE WILL BE CHARGED TO THE D BOX: 109.5' p FILTRATIVE SURFACE
OWNER FOR THIS SERVICE, CALL THE DESIGNER TO DETERMINE THE AMOUNT DRAINFIELD INVERT: 109.3'
9. THIS SYSTEM IS NOT DESIGNED FOR A GARBAGE DISPOSAL. THE USE
OF SUCH A DEVICE COULD RESULT IN SYSTEM FAILURE. 10
10. INSTALLER TO CONTACT DESIGNER FOR A DESIGN REVIEW PRIOR TO AP
P O\J ,W
INSTALLATION OF OSS FOR ON-SITE PRE-CONSTRUCTION MEETING. Q`" ' ,�
11. NO CHANGES OR ALTERATIONS ARE TO BE MADE TO THIS PLAN
WITHOUT THE PERMISSION OF THE DESIGNER. ANY DISCREPANCIES MAY 28 202 y="
FOUND ON THIS DESIGN MUST BE REPORTED TO THE DESIGNER PRIOR TO , uw
COMMENCING ANY WORK. MASON COUNTY ENVIRONMENTAL HEALT 0 10 20 GPM0 50 60 70
12. THIS SYSTEM IS DESIGNED FORA 4 BEDROOM SINGLE FAMILY RESIDENCE RET
RESIDENCE WITH NORMAL RESIDENTIAL WASTE STRENGTH SEPTIC TANK DETAIL PUMP TANK DETAIL
CHARACTERISTICS. THE MAXIMUM WATER USE SHALL NOT EXCEED 480 INFILTRATOR IM-1530 INFILTRATOR CM-1060
GAL/DAY. THE DESIGN CALCULATED SOIL LOAD RATE IS 0_6 GAL/FT2/DAY. TWO COMPARTMENT SEPTIC TANK SINGLE COMPARTMENT PUMP TANK SEPTIC SYSTEM DESIGN
THE REQUIRED ABSORPTION AREA IS 800 FT SQ (MIN). CLEAN OUT SECURED WATERPROOF LIDS WITH GAS TIGHT SEALS 24'SECURED LID WITH GAS TIGHT SEAL CHECKVALVE
13. INSTALL 280 LF MINIMUM OF 4 INCH PERFORATED SCH 40 PVC PIPE. 24 DISMETER
ACCESS RISERS
LATERALS MUST BE LEVEL. SEE TRENCH DETAIL FOR TRENCH DEPTH. 1SD% D 24'ACCESSRISER CLIENT. DAVID MUSSLEMAN
12"COVER SUPPDR REE TODRANFIED CONTACT.' 360-229-3118
2'SCH40 PVC ADDRESS: 51 E PENDRAGON DR
DATE:5121/26
STUB OUT - - -I- - - - - �. - - - - - - -
- PARCEL: 122167590032
n
PVC DISCHARGE PIPE WITH
116'DRILLED ORIFICE
`EMERGENCY STORAGE I
COATING 360 GALLONS
MAT II PL-122 I
POLYLOK I I HIGHWATER ALARM PAGE 2 OF 2
I I I FILTER SETAT 760 GAL 1/�V�f /u'm\Vv'❑C
2N I II I I WORKING VOLUME:480 GAL I ONESCOOP
OSPREY
R NW
_ SEDIMENTS
23013594 NTS / I I GIG HARBOR, WA 98332
JUSTIN W_COOPER I � SUBMERSIBLE PUMP
360 GAL SEE PUMP SPEC
HEALTH DEPTAPPROVAL — — — — — — — — — _j 253-376-0479 coopjustin@gmai .com
-SITE ASSESSMENTS- .SEPTIC SYSTEM DESIGNS- •SOILANALYSIS•
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