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Home My WebLink AboutSWG2026-00194-APPLICATION/DESIGN - SWG Application / Design - 7/14/2026 MASON COUNTY 415 N 6TH STREET,SHELTON,WA 98584 SHELTON:360-427-9670,EXT 400 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: SWG2026-00194 APPLICANT Hunter, Adam Phone: 360 753-1226 Address: 2201 93rd Ave SW Olympia, WA 98512 OWNER PATTON WILLIAM S & MICHELLE L Phone: 360-951-3584 Address: 2830 SE BLOOMFIELD RD SHELTON, WA 98584 SEPTIC DESIGNER ADAM HUNTER* Phone: 360-753-1226 Address: PO Box 162 OLYMPIA, WA 98507 Site Address: 2830 SE Bloomfield Rd Primary Parcel Number: 319232300000 Permit Description: REPAIR: SFR 2-bedroom OSCAR XO2 pressure system with OS-100 coils and a designated reserve drainfield area Permit Submitted Date: 06/20/2026 Permit Issued Date: 07/14/2026 Issued By: David Anderson Current Permit Fees Paid: $845.00 (additional fees may be required upon installation of system). Permit Expiration Date: 07/13/2027 (based on date of inspection) Permit Conditions: 1 Approval of this septic permit does not approve the building location. Building location is subject to approval from all applicable departments and regulations. 2 Proposed development subject to zoning requirements and approval by the planning department staff per Mason County Title 17. 3 Permit must be installed by a Mason County Certified Installer unless prior written authorization from Mason County is obtained. 4 Drainfield installation not to exceed designed upslope and downslope depth specified on design form. 5 Installer is responsible for obtaining Mason County installation approval prior to backfill of system components. 6 Installer is responsible for obtaining Septic Designer/Engineer installation approval prior to backfill of system components. 7 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/onsite/oss-inspection-request.php or call: 360-427-9670, extension 400. OFFICIAL USE ONLY MASON COUNTY DATE RECEIVED: a 1 a a � AMOUNT RECENE RECEIVED BY: Public Health & Human Services p v_ m Environmental Health 360-427-9670,ext.400 or 360-275-4467,ext.400 C Cl) 415 N.6th Street -Shelton,WA 98584 S W G 'c ,,_( _ C)() ' O O( z Cl) ON-SITE SEWAGE SYSTEM APPLICATION M n APPLICANT PHONE P17 r Bill Patton 3609513584 z C MAILING ADDRESS-STREET,CITY,STATE,ZIP CODE 2830 SE Bloomfield Rd co Shelton WA 98584 0° Ill SITE ADDRESS-STREET,CITY,ZIP CODE 2830 SE Bloomfield Rd a N Shelton WA 98584 I NAME OF DESIGNER 1, h PHONE IV I ADAM HUNTER 3607531226 0 NAME OF INSTALLERPHONE I ct TBD Vic= La TBD < o PERMIT TYPE(select one) DRINKING WATER SOURCE Cl) 'I W RESIDENTIAL OSS bCOMMUNITYOSS COMMERCIAL OSS ® PRIVATE INDIVIDUAL WELL O PRIVATE TWO-PARTY WELL Z I TYPE OF WORK(select one) ❑ PUBLIC WATER SYSTEM flNEW CONSTRUCTION/UPGRADES REPAIR/REPLACEMENT OTHER DETAILS(select all that apply) ❑ TABLE X REPAIR I SUBMITTALS ❑ SURFACING SEWAGE EXISTING FAILURE SHORELINE 03 ❑ DESIGN FORM(REQUIRED) SEPTIC DESIGN(REQUIRED) BEDROOMS LOT SIZE I WAS LOT CREATED AFTER 4/1/2025? r I O ❑ WAIVER(S)(IF APPLICABLE) 2 6.25 YES • NO n DIRECTIONS TO SITE AND SITE CONDITIONS:(ex.locked gate) BLOOMFIELD TO EAST ON SHARED DRIVE FOR 2830. LOCKED GATE, CALL OWNER FOR ACCESS I r I O SITE MUST BE FLAGGED FROM MAIN ROAD AND TEST HOLES MUST BE FLAGGED WITH TEST HOLE NUMBERS. I 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 (7L �1110 -20 (7 a rhof / Copt/ � a>F ..-/ RECORD DRAWING AND INSTALLATION REPORT SOIL CODES: V=VERY G=GRAVELLY S=SAND L=LOAM Si=SILT C=CLAY E=EXTREMELY R=ROOTS REQUIRED FOR FINALAPPROVAL. INSP T R SIGNATURE DATE APPLICATION EXPIRATION DATE AI I Revised:01/09/2026 APPROVED/ISSUED BY DATE T I FORM MAYBE SCANNED AND AVAILABLE FOR PUBLIC VIEW ON THE MASON COUNTY WEBSITE DESIGN FORM—PAGE ONE Assessor's Parcel Number: 319232300000 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: SWGZO?6' ( '( Designer's Name: ADAM HUNTER Applicant's Name: Bill Patton Designer's Phone Number: 3607531226 Mailing Address: 2830 SE Bloomfield Rd Designer's Address: 2201 93RD AVE SW, STE A Shelton WA 98584 City State Zip OLYMPIA WA 98512 City State Zip Designer's Email ADAM@HUNTERSEPTICDESIGN.COM DESIGN PARAMETERS Treatment Device OGlendon OSand Filter (Mound ()Sand Lined Drainfield (Recirculating Filter ❑ATU XO2 Other OSCARXO2 Treatment Level(check all that apply): 06 A 96 13 V C 99 BL 1 Id BL2 le BL3 V E O N Drainfield Type ❑Gravity il'Pressure O Trench ❑ Bed O Sub Surface Drip Septic Tank/Drainfield Specifications Laterals Number of Bedrooms 2 / Schedule/Class DRIP Daily Flow: Operating Capacity 180 gpd Length OS-100 ft Daily Flow: Design Flow 240 gpd Diameter OS-100 in Septic Tank Capacity(working) 1200 gal Number 3 Receiving Soil Type(1-6) 4 / Separation 0.5 ft Receiving Soil App!.Rate 0.6 gpd/ft2 Orifices Required Primary Area 400 ft2 Total Number of Orifices OS-100 Designed Primary Area 600 ft2 Diameter DRIP in Designed Reserve Area 600 ft2 Spacing OS-100 in Trench/Bed Width 14 ft Manifold Trench/Bed Length 43 ft Schedule/Class 40 Elevation Measurements Length 30 ft Original Drainfield Area Slope 15 % Diameter 1 in New Slope,If Altered N/A % Preferred manifold configuration used?®Yes oNo Depth of Excavation Up-slope OSCAR in Transport Pipe from Original Grade Down-slope OSCAR in Schedule/Class 40 Designed Vertical Separation >18 in Length 170 ft Gravel-based Drainfield Required? 0Yes®No O Diameter 1 in Pump Required? ®Yes ONo Dosing and Pump Chamber Pump/Siphon Specifications Number of doses/day 412 Diff.in Elevation Between Pump&Uppermost Orifice 11.6 ft Dose quantity 0.58 (30SEC) gal Drainfield Squirt Height/Selected Residual(head) OSCAft Chamber Capacity(flood) 1200 gal Uppermost Orifice®Higher OLower than Pump Shutoff Pump controls:Please check those required. Capacity @ Total Pressure Head 12 gpm I!( Timer Ii f Elapse Meter l9 Event Counter Calculated Total Pressure Head 42.62 ft If Timer: Pump on 0.58 (30SEC),pump off 3MIN Comments Revised: 6/11/2025 DESIGN FORM—PAGE TWO Assessor's Parcel Number 319232300000 Permit Number: SWG 2Z(p -C() I Ciy DESIGN CHECKLISTS Scaled Plot Plan Scaled Layout Sketch Cross-Section Sketch V Test hole locations la' 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 V Drainfield cover V Existing and proposed wells f ' D-Box/Valve box locations Reference depth from original grade within 100 ft of property V Septic tank/pump chamber and restrictive strata: 9 Measurements to cuts,banks,and locations V Laterals,trench/bed, top and surface water and critical areas V Observation port location bottom Location and orientation of V Clean-out location V Curtain drain collector curtain drain and all absorption V Manifold placement ld Sand augmentation components la' Orifice placement Other cross-section detail: Location and dimension of Qf Lateral placement with distance V Observation ports/clean-outs primary system and reserve area to edge of bed � Buildings Other Information Audible/visual alarm referenced Yes No Direction of slope indicator 0' Scale of drawing shown on scale E'f ❑ Design staked out V Waterlines bar V ❑ Recorded Notices attached Roads,easements, driveways, 'Elevation benchmark and relative V ❑ Waiver(s)attached parking elevations of system components V O Pump curve attached V North arrow and scale drawing V O Evaluation 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 ®Yes O No 6/19/26 Signature o Designer 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-s gulations: l 70 ?c MASON Co1/v , 4 20Z6 ronmental Healt pecialist Date D �'f,�,r,,1 ( CAUTION: DESIGN APPROVAL IS VALID ONLY UNDER THE FOLLOWING CONDITION: ✓ The design is stamped"Approved"by Mason County Public Health. ✓ 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 MASON COUNTY HEALTH DEPARTMENT ON-SITE SEWAGE DISPOSAL SYSTEM DESIGN Site# (county-assigned) Parcel # 319232300000 Date submitted 6/19/2026 Legal/Lot# — Submitted by — Applicant Bill Patton Site 2830 SE Bloomfield Rd, Shelton, Mailing 2830 SE Bloomfield Rd, Shelton, address WA 98584 address WA 98584 I. Flow Calculations Number of bedrooms 2 Residential GPD flow 240 gpd Application rate /1.9I2 0.60 gpd/ft2 Absorption area 400 ft2 II. Waterproof Septic Tank _ , \ ADA.IJ IIUYIEIi Composition&size 1200GAL - XO2 TANK III. Drainfield Details Sand Depth it' . 0' - 6" IV. Pressure Calculations Using pipe class �ONCO/N 4 2026 40 Distribution ry JRpy�� rq Netafim dripline (per Oscar) Supply/return —friction loss z .1li LENGTH DIAMETER FLOW FRICTION LOSS SECTION (FT) (IN) (GPM) (FT) Supply 200 1.00 12 15.51 Return 200 1.00 12 15.51 Total = 31.02 ** Total Head Loss ** 1)Friction loss through system= 31.02 ft 2) Elevation difference= 11.60 ft Total= 42.62 ft V. Check the Pump Capacity Pump(per Oscar) A.Y. McDonald 30 GPM — X HP Excess TDH rating 50.00 ft Total head loss in system 42.62 ft Standard pump configuration sufficient? YES 11.91,��r } •D.1l.IJ MINTER NOTES: SCALE: 1" - 100FT 334.3 RESTRICTIVE LAYER BELOW: 24" -.--- 3 1400 • FIVE TIMES RULE MET 2 • ELAPSE TIME METER AND EVENT COUNTER REQUIRED - - 1 - -30FTACCESS/UTILITY ESMT • RISERS TO SURFACE REQUIRED OVER ALL TANK LIDS 43.0 • OPERATION CAPACITY OF THE SYSTEM IS 180 GPD SOIL LOGS: ? / 1) SANDY LOAM(SOME SILT-TYPE 4) 0-20" MOTTLING 20"+ O / / ` 2) SANDY LOAM(SOME SILT-TYPE 4) 0-20" R/A / MOTTLING 20"+ 10 / / ` 3) ,JA2 TT ' 5) - - OHWM J 1 _ _ _ _ _ _ > MgS�N�o U 1 ?0?6 6) UN 13 4 98 j ry p��Nry�ENTgC y 7) __ 1 96 i4 6 �� TANK DETAIL-NO SCALE 50 _� uumTHGASTI NTSEx 9'r CLEANOUT ON 2C'ACCESS RISERS LIO WRH GASTIGHT SEAL '"' J ON 2V ACCESS RISERS WATERPROOF JUNCTION BOX 5 FINISHGR-E THREADED UNION SERVICE VALVE FIELD 792.4 8 FROM SE-A E FROM 5 TANK FLOAT 835.0 10 SOURCE O 8ER INDEPENDENT FL OAT STEM FOR FLOAT MOUNTING T _K FIOAT ..- 1 HECK VALVE APPROVED EFFLUENT F R UNDANTOFF PUMP PUMP ON BLOLK 7 FT oa m sHRouD SCALE: 1" = 30FT 3 CONTOUR LINES PER GIS,REFER TO APPLICATION FOR PROPERTY ACREAGE. HEADWORKS NAVD88 ELEVATION IS UNKOWN THIS IS NOT A SURVEY: 1 site features,topography,elevations and benchmarks are based on assumed datum SEE DE L provided by the owner and county planning records and are intended only for the review 2 1O EXISTING 2 BDRM RES /1 Jn and construction of the proposed septic system design. Hunter Septic Design ,.- recommends that a licensed professional land surveyor always be used to set corners, EXISTING WELL F establish lot lines,determine elevations and topography and/or provide a legal site plan. 3 EXISTING DRIVE n .r��. A fee may be charged for final inspection and record drawings , _ _ 4 EXISTING STUBOUT/ADD CLEANOUT(IE.-94.0) f REVISION LOG: 200FT T OH - _ -� "- _ 5 EXISTING SEPTIC TANK(ABANDON PER CODE) VERSION-DATE 10 1 O PROPOSED 1200GAL XO2 TANK(IN.EL.-93.0/OUT.EL.-92.5) 7O PROPOSED 1200GAL PUMP CHAMBER(PUMP EL.-88.5) 12 100FT TO-QHWM- - 200'-1"PVC SUPPLY/RETURN LINE(SCH40) - BLOOMFIELD RD TO SHARED DRIVE FOR 2830 THROUGH LOCKED HUNTER SEPTIC DESIGN DESIGNER: _ 9 PROPOSED OSCARXO2 DRAINFIELD AND RESERVE AREA (14FTX43FT)(IE.-100.1) GATE STAY LEFT CONTINUE TO THE END. CALL OWNER FOR ACCESS ADAM HUNTER TOP OF BL 10 SHEDS/BARNS/OUTBUILDINGS PO Box 162/Olympia,WA 98507 337.0 360-890-2778/adam hunterse ticdesi n.com SITE ADDRESS: 11 WATERLINE SEPTIC SYSTEM DESIGN FOR: 2830 SE Bloomfield Rd 12 FAILED D.F.(DUE TO AGE) BLOOMFIEL RD Bill Patton SITE LEGAL: OHWM- site legal 13 RBM IS GROUND EL.@ HOUSE CORNER(RBM=100.0) PARCEL NUMBER: SITE/PERMIT#: PAGE: 319232300000 1OF2 OSX-360-7S Headworks HWN- .7-RF 43FT A MIN. SHOULDER LENGTH "SUPPLY FROM PUMP LSSS �._ INSPECTION PORT 1"RETURN JUL 1 4 226 MASON COUNTY ENV1R ,; P�,.aL N�,- Q LINSPECTION PORT N1 ^,1; fir_ r-� C,I co rA n 3FT yt"Filter 0� A O O 314"water t r 4"SLIP CAP OS100 OIL PREPARED SOIL SURFACE' ASTM C-33 SAND 1 P Da[.IJ lYiC4. INSPECTION PORT TO COIL TO TANK TO COIL X02 Tanks 2/3 OSCAR HEADWORKS SETUP: 1. Place valve 1&2 toggle switch and pump 1 toggle switch to MAN position.Pump should dose and all three pressure gauges should stabilize at about 50psi.Gauge 3 may read as low as 40psi.No water should be flowing into the septic tank. 2. Place valve 3&4 toggle switch to MAN and valves 1 &2 toggle AERATOR switch to OFF,Pump#1 in MAN.Pump should run,pressures should change,water should be flowing back into the septic tank very PUN vier rapidly. 2.1. Gauge 2-Highest Pressure 1200 Gallon 1200 Gallon Pre-cast Concrete 2.2. Gauge 1-Less than 2 Septic Tank Single Compartment Discharge Tank 2.3. Gauge 3-Opsi BATOR 3. Place valves 1 &2 and valve 5 in MAN position and valves 3&4 in OFF position,and Pump#1 in MAN.Pressure on Gauges 1 &2 DESIGNER: should indicate about the same pressure and Gauge 3 should HUNTER SEPTIC DESIGN ADAM HUNTER if indicate between 0-3psi and water should be flowing into the septic tank at a moderate rate. 2201 93rd Ave SW,Ste A/Olympia,WA 98512 2/3 dWF/ II II4. Position all switches to Auto. 360-890-2778/adam@huntersepticdesign.com SITE ADDRESS: SEPTIC SYSTEM DESIGN FOR: 2830 SE Bloomfield Rd NWA V1 OFF= 3 MINUTES Bill Patton °° 4iIN. V1 ON= 30 SECONDS SITE LEGAL: V2 OFF= 30 SECONDS site legal PAGE: 12,18 Ce ERAC NOTE:OSCAR IS OVERSIZED T HL MANAGE fl 24. C TO FLOWS V2 ON= 15 SECONDS PARCEL NUMBER: SITE/PERMIT#: 2 OF 2 FROM HOUSE AND PROVIDE OPPORTUNITY FOR FUTURE EXPANSION,NEW PERMITTING WOULD BE REQUIRED FOR V1V3 OFF=30 SECONDS 319232300000 ANY EXPANSION BEYOND 2 BEDROOMS. V1V3 ON= 2 MINUTES