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HomeMy WebLinkAboutSWG2026-00125 - SWG Application / Design - 4/24/2026 MASO �O �� 415 N 6TH STREET,SHELTON, ,WAE 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: SWG2026-00125 cwl APPLICANT MARINER ELAINE &VIOLET Phone: Address: 220 E FOREST DR BELFAIR, WA 98528 OWNER MARINER ELAINE &VIOLET Phone: Address: 220 E FOREST DR BELFAIR, WA 98528 SEPTIC DESIGNER CINDY WAITE* Phone: 360-701-0205 Address: 80 E PICKERING LANE SHELTON,WA 98584 Site Address: 220 E FOREST DR Primary Parcel Number: 222215300103 Permit Description: Repair/upgrade to 3bd OscarXO2 Permit Submitted Date: 04/24/2026 Permit Issued Date: 05/05/2026 Issued By: Rhonda Thompson Current Permit Fees Paid: $845.00 (additional fees may be required upon installation of system). Permit Expiration Date: 05/01/2027 (based on date of inspection) Permit Conditions: I 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 upsiope 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. 8 This is a repair/upgrade to 3bd so must be conforming.All building additions within 10ft of drainfield must be removed. Waterline must maintain 10ft to all septic components. 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 DATERECEIVED: CCo AMOUNT RECEIVE RECEIVED BY: Public Health & Human Services $yam 0Ic O� Cl) Environmental Health 360-427-9670,ext.400 or 360-275-4467,ext.400 415 N.6th Street-Shelton,WA 98584 S\/\IG _ C) 1 1 _ �-�J O Z f/) ON-SITE SEWAGE SYSTEM APPLICATION m APPLICANT PHONE m MARINER, ELAINNIOLET 360-801-7093 z C MAILING ADDRESS-STREET,CITY,STATE,ZIP CODE E 220 E FOREST DR BELFAIR WA 98528 m SITE ADDRESS-STREET,CITY,ZIP CODE X 220 E FOREST DR BELFAIR WA 98528 NAME OF DESIGNER ]O PHONE N CINDY WAITE �p 360-701-0205 NAME OF INSTALLER PHONE DI TBD PERMIT TYPE(select one) DRINKING WATER SOURCE - IO RESIDENTIAL OSS I]COMMUNITY OSS 1ñ COMMERCIAL OSS 51 PRIVATE INDIVIDUAL WELL fU PRIVATE TWO-PARTY WELL Z I TYPE OF WORK(select one) PUBLIC WATER SYSTEM TWANOH FALLS WS NEW CONSTRUCTIO /UPGRADES _REPAIR/REPLACEMENT OTHER DETAILS(select all that apply) ❑ TABLE X REPAIR I SUBMITTALS SURFACING SEWAGE Eg EXISTING FAILURE ❑SHORELINE W�II DESIGN FORM(REQUIRED) SEPTIC DESIGN(REQUIRED) BEDROOMS LOT SIZE WAS LOT CREATED AFTER 4/1/2025? O I 5WAIVER(S)(IF APPLICABLE) 3 .22 AC ❑ YES Q NO 0 DIRECTIONS TO SITE AND SITE CONDITIONS:(ex.locked gate) I O GO OUT BROCKDALE TO MCREAVY, TURN RIGHT ONTO DALBY, TURN RIGHT AT TEE, I I o TURN RIGHT ON TO TWANOH FALLS, TURN LEFT ONTO FOREST DRIVE, PARCEL IS ON THE RIGHT SIDE. HAS A WOOD GATE. PRIMARY SOIL LOGS ARE ON THE RIGHT 0 SIDE OF THE RESIDENCE. I o CALL OWNER PRIOR TO SITE VISIT SO THEY CAN LEAVE GATE UNLOCKED. SITE MUST BE FLAGGED FROM MAIN ROAD AND TEST HOLES MUST BE FLAGGED WITH TEST HOLE NUMBERS. Iw OFFICIAL USE ONLY BELOW THIS LINE UPGRADE/FAILURE SOURCE(for reporting purposes) ❑VOLUNTARY ❑MAINTENANCE/PUMPING ❑BUILDING PERMIT ❑HOME SALE ❑COMPLAINT ❑OTHER: INSPECTOR SOIL LOGS COMMENTS/CONDITIONS —Z'i C L C.5 1 zu+ (tip rarL5 t I Dt T ► fz I CI YittI',, co-F - Wad-✓1� � f�n �S 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 FINAL APPROVAL. INSPECTOR SIGNATURE [1,;DA APPLICATION EXPIRATION DATE AAPPLICATION APPROVED/ISSUED BY / DATE_ cj 1 c 1 I fl THIS FORM MAY BE CANNED AND AVAILABLE FOR PUBLIC VIEW ON THE MASON COUNTY WEBSITE Revised:4/14/2025 DESIGN FORM—PAG ONE Assessor's Parcel Number: A design will be reviewed hen 3 copies of each of the following are submitted: d Completed design form that has been signed and dated. Scaled layout sketch,including all applicable items on checklist. Scaled plot plan,including 11 applicable items on checklist. Cross-section sketch,including all applicable items on checklist. This form may be sc nned and available for public view on the Mason County Web site.Maximum paper size: 11"X 17" - _-- — -.- PAR:CEL:IDENTIFIATION Permit Number: SWG - CO( Designer's Name: CINDY WAITE Applicant's Name: MARI JER,ELAINENIOLET Designer's Phone Number: 360-701-0205 Mailing Address: 220E FOREST DR Designer's Address: 80 E PICKERING LANE BELF IR WA 98528 City State Zip SHELTON WA 98584 City State Zip Designer's Email cindyewaite@msn.com _ - ._ _. DESIGPIi'PARAIVIE PERS Treatment Device ❑Glendon ❑Sand Filter Mound ❑Sand Lined Drainfield/ l ❑Recirculating Filter O ATU ❑Other XO2 Treatment Level(check all hat apply): IA 1Cl Li ®B C I BLI IBL2 YJ BL3 IE ❑N Drainfield Type ❑Gravity C Pressure O Trench ❑Bed ❑Sub Surface Drip Septic Tank/Dr iied Specifications Laterals Number of Bedrooms 3 ?, 715 ' Schedule/Class NETAFIN Daily Flow:Operating Capaci y Z.-'L'O X766 gpd Length 100 ft Daily Flow:Design Flow 5O ,8' gpd Diameter in Septic Tank Capacity(workin ) 1200 XO2 gal Number 3 Receiving Soil Type(1-6) 3 Separation .5 ft Receiving Soil Appl.Rate .8 gpd/ft2 Orifices Required Primary Area 450 ft2 Total Numb Orifices' 3X100=300 Designed Primary Area 450 ft2 Diameter '• A. EMITTER in Designed Reserve Area 450ft2 ;i',= g Spacin , .5 in Trench/Bed Width 22.5 ft Manifold Trench/Bed Length 20 ft Scli / '� SCHEDULE 40 Elevation 4easurements1 �51 25'SUPPLY/RETURN ft 7 ' , Original Drainfield Area Slop 5 % imetddNDv e. Arse' 1 in New Slope,If Altered % LICENSED DE f IGNER o used? ❑Yes Rf No ,: :'Ls ,f,1O Depth of Excavation Up-slop 0 in Transport Pipe from Original Grade Down-sl pe in Schedule/Class NA Designed Vertical Separation 18 in Length ft Gravel-based Drainfield Requ ed? O Yes O No Diameter in Pump Required? If Yes O No Dosing and Pump Chamber Pump/Siph n Specifications Number of doses/day 360 Diff.in Elevation Between Pu tp&Uppermost Orifice 5 ft Dose quantity .77 gal 1\ 5 Drainfield Squirt Height/Sele ted Residual(head) NA ft Chamber Capacity(flood) (QJ f+ gal Uppermost Orifice G?'Higher Lower than Pump Shutoff Pump controls:Please check those required. Capacity @ Total Pressure He d gpm I!! Timer Rf Elapse Meter I1 Event Counter Calculated Total Pressure Hea 5.69 f If Timer: Pump on 22 SEC ,pump off 3 MIN 38 SEC Comments FOLLOW X02 INSTAL INSRUCTION FROM OSCAR. CALL DESIGNER PRIOR TO STARTING INSTALLATION. Revised: 6/11/2025 DESIGN FORM—P GE TWO Assessor's Parcel Number 2 2 2 2 1 15 3 0 0 V 1 0 3 Permit Number: SWG ��1 5 DESIGN CHECKLISTS Scaled Plot Plan Scaled Layout Sketch Cross-Section Sketch i6 Test hole locations 10 Drainfield orientation and layout Soil logs y Reference depth from original grade: g if Trench/bed dimensions and i! 1 Property lines critical distances within layout " Septic tank Drainfield cover xisting and propo ed wells 44)-Box/Valve box locations Reference depth from original grade within 100 ft of proproperty Fl Septic tank/pump chamber and restrictive strata: measurements to c ts,banks,and locations F' G ' Laterals,trench bed,top and surface water and c itical areas Observation port location bottom 4Location and orien Lion of L f 4 lean-out location ❑ Curtain drain collector curtain drain and al absorption 'Manifold placement O Sand augmentation components i�1ce placement Other cross-section detail: Location and dimei sion of ht' Lateral placement with distance O Observation ports/clean-outs primary system and reserve area to edge of bed Other Information • Buildings Q{ Audible/visual alarm referenced Yes No ❑ Direction of slope i dicator Scale of drawing shown on scale ld O Design staked out ❑ Waterlines bar O ❑Recorded Notices attached ❑ Roads,easements, riveways, ' Elevation benchmark and relative ❑ O Waiver(s)attached parking elevations of system components Fl ❑ Pump curve attached ❑ North arrow and sc le drawing ❑ ❑ Evaluation of failure shown on scale bar Non-residential justification ❑ 0 Waste strength ❑ ❑ Flow DESIGN APPROVAL I The undersigned design r must be no ' by installer at time of installation RYes ❑ No L (A2(4— ' 2/22 Signatur f Designer Date The undersigned has re Sewed this design on behalf of Mason County Public Health and determined it to be in compliance with state a d local on-site regulations: Mifl' cfr(24 Environmental Health Sp cialist Date CAUTION: DESIGN APPROVAL IS VALID ONLY UNDER THE FOLLOWING CONDITION: ✓ The design is stamp d"Approved"by Mason County Public Health. ✓ The Onsite Sewage ermit has not expired,the Permit Expiration Date is: ST/i V 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 au horization is obtained from Mason County Public Health. An Installation Fee is required. This form may be sea fled and available for public view on the Mason County Web site. Revised:6/11/2025 220 E ForesfDr,.BeIfair VVIrA,98528, USA,Union- rapeview Township; Parcel l 22221.5300103. � sting residence _ - ROVED 2 Garage shop -.-_-- -- --- - - ----• -- -•---------- JiiiiiIIIiMAY 0,5,2026 �_ . 3 Primary drainfield MASON COUNTY ENV{R0NMENT'AL HEALTf{ 4 Reserve drainfieldhhuuhi7hhhhhhuh1J / RET 4_� 5 JAudio/visual alarm I I 1 1 , 6 Clean out L*F , 7 1200 gallon XO2 tank 2 O 8 1200 gallon discharge tank 9 Schedule 40 supply/return line TJJ Sze 10 Additions to be removed ���-------"`- not on ! �" � � 'L �- dam.." L.. ( foundations) ,� 1v G /ps ndation 1 -, Septic tank 100.00 ! Pump Tank 2 99.50 0 Bottom of drainfiel ' vim, , u 1•iT1 ( Lo- I GIS Legend - WA Mason 10 ft_Contours Scale 1 in 20 ft " The OS-100 OS AR coil contains 100, 0.42 gph Netafim emitters in a 50 sq. ft. foot print. Emitter oncentration is 2 emitters per sq. ft. Design flow for each OS-100 is 100 gpd. Sample Coil la outs 300 gpd . 360 gpd MIN.SI OULDER LENGTH MIN.SHOULDER LENGTH = 1°SUPT - o .: ,rit - c: QrLLt-.__'k�- -�- L`/.1pL--_ = L.�J.=,•. Q '•L�r� a-la_.-�_ �-a _2 J -__c La _.-J1=� m ` • ' i mop pm NPCRT ° - WSPECTIO•INSPECTION PCNT �NSPECTpN PCP 480 gpd MIN. HOULDER LENGTH M � APPROVED MAY 052026 MASON COUNTY ENVIRONMENTAL HEALTH RET .JHeadworks: HA N-.7-RF • 3/a inches rkal disc filter, mesh, 130 micron • 3/a inches Arad flow meter • Three oil filled pressure gauges (0-100 psi) • 5 Netafi normally closed solenoid valves (Model 80) �— I � a� _ f• - �, 'gyp Off' CIN�� AIFE' .2i _' Yti LICEN5eD5IGNER• L.PIkLS Headworks, anual flush: HWN-.7-man • 3% inches Arkal disc filter, mesh, 130 micron • 3/a inch 4s Arad flow meter • Three cil filled pressure gauges (0-100 psi) • One I i ch Spears gate valve for flushin . OSCAR-X02 Pars list (500 gpd). ch OSCAR-XO unit will include: • LF1 P-RF- RA control panel • LOT-30, /2 hp, 120 volt pump • Hi-Blow 4erator, HB-80 (80 liter/minute) • Hi-Blow ciffusers • OS-50 or S-100 Coils • PVC fitti gs and drip tubing adapters • HWN-.7-13F automatic headworks • Solid 'h iriches poly tubing for connections • 2 floats itches OSCAR-XO2M P its list (500 gpd). APPROVED Each OSCAR-XO unit will include: P�iAY 0 5 2026 • LF1 P-RF- RA control panel • LOT-30, 1/2 hp, 120 volt pump MASON COUNTY ENVIRONMENTAL HE • Hi-Blow erator, HB-80 (80 liter/minute) RET • Hi-Blow iffusers ,` • OS-50 or S-100 Coils P' '� • PVC fitti gs and drip tubing adapters : yam ; 2,���•: :. HWN-.7- F-man �� �=� • Solid %2 i ches poly tubing for connections .� �!�g • 2 floats itches o OINNv = 'NAITE �' '. UCF N3 ED f)E.�IGNER Headworks: There a e two options for headworks with the OSCAR-XO2 system. The original XO2 ki has the automatic reverse flush headworks while the new version X02M kit has manual headworks (see appendix). There are no solenoid valves in the X02M kit. APPROVED M AY 05 2026 vs �;� :.- : tr..v�� u —. r:.r1R0NMENTAL HEALTH vs us !1f i ♦ V.i'r a l2® o 6 // j tbi �l 2 0o c?2 .. lc. TABLE 2 Hydraulic Layout OS-50 coils 4'.. - 4 1 `"1.4! T R7.8' j�'5`0'_ 5 _ 5_ 1 1.75 9.75 50' . • L6` - _ + 3 - - 2_ � 2�1 i}6},2y' 150; 42 2.8 9.2 - 9.2- 50' 8 4 ;;'2_ J28 9,.:2 x50' ' II 10 5 2 3.5 11.5 50'` TABLE 3 Hydraulic Layout OS-100 coils ®• • • • E.WAIVE` h.'' DE�IGNEF2 .2 _—_ ;`�- --- --1"I -�a-- -- �.._ - _r_.__"1,-- C',;."tre ',a•101 • � 3 3 1 2.1 6.9 50' Ms 4- 4 "1 2 8 ',9 ?' 150'; • � � 5 5 1 3.5 11.5 50' TA Minimum Shoulder Lengths OS-50 * - . • • . -I !juiiIuI.iN1ET3'00 28 ---------------- 480 44.5 _ 55 The dimensions in Table 4 represent the minimum required length of the outer shoulder which include coils, spacing between coils, and shoulders. These lengths can be extende I to match site conditions. Minimum shoulder spacing and spacing between coils i 6 inches. See illustration below for example of shoulder Length. TABLE 5 Minimum Shoulder Lengths OS-100 ! - =24A__.�r. ,3.60 21' 4 inches 600 35' 5 inches The dimensions in Table 5 represent the minimum required length of the shou r which include c ils, spacing between coils, and shoulder. These lengths can extended to mach site conditions. Minimum shoulder spacing is 6 inches. S illustration below for example of shoulder length. 51gnn18• � �-�.. p=• CINDY E WAITE`; ;; "` The basa area is comprised of the total area where the C-3 andl �aP1s'G in contact with he receiving soil. The minimum required basal aréWctaLatd by dividing the esign flow rate by the soil loading rate specified in WAC 246-272A (local codes ma have differing loading rates). APPROVED MAY 05 2026 MASON COUNTY ENVIRONMENTAL HEALTH RET n � a r Hi - r — 1c a ` BASAL WIDTH ` z N ___ : 'o ♦�f•rt N a is �----------------------------� N APPROVEv••' F Shi, G• . MASON COUNTY ENVIRONMENTAL a ThclN EnWAL £ �+.}~: RET LICENSEDDE�IGNER r, t1J•:0l OSCAR-X02+1 arts list (501-1,000 gpd). Each OSCAR-X 2+1 unit will include: • LF1 k-RF ARA control X11- ane • LOT-3120 vo Vpump • Hi-Blo (2) GCB-80 (80 liter/minute) • Hi-Blos )OS-50CoilsPVC fdri tubing adapters HWN- atic eadworks • Solidoly tubin for connections • 2 f,Lø t s itches OSCAR-XO2 coi Connections Manifolds and supply lines are 1 inches Sch 40 PVC _ A Iy p=• CINDY WAITS �•. LICENSF.D DF jlGNER Manifold and lank tech line adapter and connection. APPROVED MAY 05 2026 MASON COUNTY ENVIRONMENTAL HEALTH RET Wi X02 Tanks Option 2 II Pre-cast Concrete Pre-cast Concrete Treatment Tank Discharge Tank P-fl Z C= %'cry-a.e"m�-a..a..'c^orc:^m"a:a•.•a�.�'n�a.•-a..,:a•-,.:r. o-.,.•A• `a �, -c, N �a..,.a.,.•a:>^•o--. a-.•on-•.•,on-.�an.�a s..m. .a• .�.,..,.a.,.a. to 2/3 1 O Ln a0�- x o O O O O O pe a O 1 PLAN VIEW VENTED UD b1►Z' = HEADP ORKS ATs HWA II h O oo Li / IFFU R L_J_H CROSS SECTION LOWRIDGE ONSITE TECHNOLOGIES DRAWING ID: XO2 Tanks, Option 2 SCALE: NTS DATE:8.2.2023 DRAWN BY: DBM CK BY: DAVE LOWE RV F=L(Q/K0)"1.85 CAlCU LTIN F=friction loss through ipe I feet of head IDOANOT CIJIANGGE L=length of supply line n feetFILL IN Q=Flush GPM K=47.8(1'SCHEDULE 4 ) LENGTH 25 Q FLUSH GPM 6.9. K (1"SCHEDULEN 40) FRICTION LOSS L94i7 TDH 0.696417 TOTAL HEAD FRICTION LOSS is 0696417! ELEVATION FROM PUM TANK TO OSCAR 5, TOTAL HEAD 56964`L7<50 EXCESS TDH GMP DISCHARGE AT DF EMITTER GPH a ''©g42 .42 GALLONS PER EMITTER PER HOUR MINUTES PER HOUR 6©. #EMITTERS1®© #COILS 3,{ GPM PER COIL ( 0'7t GPM PER TOTAL COILS , -2;1 DOSE VOLUME GPM PER COILS •O.7i___________________________________________ COILS 3' a60t SECONDS IN MINUTES SECONDS ON •.« 22' GALLONS PER DOSE � O.77. CALCULi41ION TIMER SETTING ,D0 NOT G ANGE TIME OFF SECONDS 218 3 MIN 38 SEC TIMER ON SECONDS 22 22 SEC TIMER SETTINGS GPD _ 184 FILL IN GP DOSE ;0:-77 DOSES PER DAY 3.6©)l GPD 277.2 OK APPROVED MAY 05 .:.� ,�oa i • . � 2026 ' ' =. CINDY E WAI : MASON COUNTY ENVIRONMENTAL HEALT L'cENSED DEICNER RET I". .:- Blank tech lin r and Bioline connection with internal coupling Inspection por S. Screw Type Cap Screw Type Cap or Slip Cap or SUp Cap E-4"PVC Pipe 4"PVC Pipe (Length Varies) (Length Varies) l� 1/4 z 4"Long Slots(4)Q 90*Apart Toilet Ring �' 57QQ4� MAY 05 2026 o C ND1L��WAITE ,. LICENSED FEIGNER MASON COUNTY ENVIRONMENTAL ,n; OSCAR Cover O tions. RET There m y be a desire to cover the OSCAR with something additional to the specified ASTM -33 sand. The intent is not to have too much additional cover over the final C-33 s nd layer that would prevent the sand from accessing oxygen from the atmosphere Placing too much cover will inhibit plant root growth. Because the C-33 sand i sub-surface irrigated, grass and other ground cover will grow rapidly, formin a firm protective cover over the OSCAR. At the end of the first growing season the C-33 sand layer will be as firm as native soil to walk on. Options includ : • Landscaping jute mat with grass seed or ground cover plantings • A thin layer o mineral soil low in organic content (<10% organics) • Thin layer of rushed or washed rock for wind erosion protection. • Thin layer of ark to wood chips. • Aggregates ti e size of rip-rap (5-6 inch diameter) can be "placed"on the OSCAR for protectio from deer or elk traffic. These larger sized aggregates must be placed, not d opped, on the OSCAR to prevent breakage of piping and other materials. • Wire mess ca be installed over the sand to prevent erosion and allow for grass to grow. Do Not Cover -33 Sand with: • organic mix ( anufactured top soil from compost) • filter fabric LOT-30 pump urve: e Thermoplastic ITeint dThermpkicmdateac itanddi hirgew hb;.d4:l idebIriog.This112HPp,phisatteinless gelIt tearing and rrrmr cmpift Thane wa m ld idth our AY.Wansld tula as 11W mHarl.Ua ava sig1 asaccdeisirsJudeTr catu.md lD 6x1. Tkl1mInch (1ctdcaICade(IILt.)spa"iatlas TheFE nc,cv,b v?tlassltysJincho:3ingtlmppehatlaetsy:larcth. I E-3d GPM E-30 GPM C Sm ~-- �� pINSy � E`i Im �tQg►�tSTACET - .-.-.-L �F..`_ _-...�_I .t-i-*- .¢-'�_ m t: /� taw o s la is m m m ss ao ' 'Sinn 18 tags n In Fmipts d to n to a Im M Itt Ito LICENSEp DE.5IG _ SpdcI1t A N10/ � 1w 2g Pests 1 r] ROVED SUYIUALrn1 P3 ATIUY blfDcntla MAY 5 e"x7puePs�lavdpcmpsht •PlattedN A4.IttDat7'dsibmenL8nai iIRNE o 202266 - MASON COUNTY ENVIRONMENTAL HEALTH a I77teat oisaam ahsgauc t1.!lh, rKi2tisd menLvit xr Wamctttnm-teedp ledretathras faile :mabpwtfranW thta nhssmequodarolale R`'T ptt02 1IImd: IawQtM0ItcWdV kL Tagh2a W141Ft223 crisChand6.teLuz P1bmllFl & -)h-3t22 trtn73e Lod tales IMM saw ALgabal Cn6�RSneaai�',mlYloelt'�0t!'3[LiO1StY.F4itl binmH.Yih(itle/i.-IYt}au i90t tbth. U.,l W.. Submi d by ,�, Installation Notes Oscar-XO2 Treatment System 22221-53-00103 220 E Forest Dr 1. The prepare 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. 2. Installer re ponsible to contact designer prior to installation. 3. Installer re ponsible to submit installation form to designer with a plot map, tank information pump information and any changes from the original design. 4. Oscar drainfield: ASTIVI C-33 sand media as per Washington Department of Health's Recommen ed Standards and Guidance for Intermittent Sand Filter. 5. All new line in the driveway must be cased. 6. Jute drainfield 7. Minimum o 6" of sand throughout out the lateral(coil) area, must be level. 8. Oscar X02 arts list on Page 5 9. Controls to be set per XO2 guidelines 10. Septic tank ocation must meet all required setbacks. 11. Keep wheel d vehicles off the drainfield area before, during and after installation. 12. Tracked equ pment only 13. ,All ground, urface water and roof drains must be diverted away from the septic tanks and drainfield. 14. 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, etc. to divert all waters 15. Curtain drai s can be no closer than 10' upgradient and 30' down gradient of the drainfield 16. Exposed res rictive layers, cuts, banks, etc. can be no closer than 50' downhill from the drainfield. 17. Install acces risers on all tanks, valve box and ends of laterals. 18. Make sure s ptic tank risers are epoxied or caulked to cast in riser rings on tank. 19. Lids must fo rn a water and gas tight seal with the access risers. 20. This system must be installed by a Mason County Certified installer. 21. Deviation fron this design without prior approval from the designer and Mason County Health Department will make this design null and void. 22. This design ias sized per Washington Administrative CodeWAC246-272A-0230. The operating cajDacity is based on 45 gallons per day per capita with two persons per bedroom. Tile minimum design flow per bedroom per day is the operating capacity of ninety galloth multiplied by 1.33. This results in a minimum design flow of one hundred twenty gallo s per day. This creates a surge factor of 33% but a pated flow is ninety gallons per edroom per day. APPROVED MAY 0 5 2026 0� U ENS §IGNER MASON COUNTY ENVIRONMENTAL HEALTH z x''I LS U51,Or RET System Owner Responsibilities: 1. Owner or installer responsible for payment of installation permit prior to starting install. 2. Operation nd Maintenance is required by Washington State Department of Health and Mason Co my Health Department. 3. The septic tank and pump tank should be pumped every three to five years or as needed. 4. System o ners are responsible for having maintenance performed annually. 5. System o ners are responsible for responding to septic issues in a timely manner. 6. System o ners shall not at any time change or alter settings in the control box. 7. System o ner agrees to read and abide by information regarding their system in the User Man al provided by Mason County Public Health. 8. Keep the flow of sewage at or below the approved design operating capacity. 9. Leaky plu bing can hydraulic overload your on-site septic system 10. Keep wast strength at residential waste strength parameters. 11. Spread loads of laundry through the week. 12. Do not use excessive bleach or detergents with added whiteners. 13. Do not sho er, do laundry and dishwasher at the same time 14.Antibiotics an kill or impair the biological process in the septic tank. 5 ?6 • ICENNS,IGNER APPROVES MAY 05 2026 MASON COUNTY ENVRONMENTAL HEALTH RET