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HomeMy WebLinkAboutSWG2025-00410 - SWG Application / Design - 10/9/2025 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: SWG2025-00410 APPLICANT ASHBY DAVID C Phone: Address: 950 E ENCHANTMENT DR UNION, WA 98592 OWNER ASHBY DAVID C Phone: Address: 950 E ENCHANTMENT DR UNION, WA 98592 SEPTIC DESIGNER PAULA JOHNSON* Phone: 360-898-2255 Address: 171 E VUECREST DRIVE UNION, WA 98592 Site Address: UNKNOWN Primary Parcel Number: 322325006004 Permit Description: New 3bd ATU to pressure trench with waivers Permit Submitted Date: 10/09/2025 Permit Issued Date: 03/31/2026 Issued By: Rhonda Thompson Current Permit Fees Paid: $555.00 (additional fees may be required upon installation of system). Permit Expiration Date: 12/01/2028 (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 i Permit must be installed by a Mason County Certified Installer unless prior written authorization from Mason County is obtained. 4 Drain field 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/onsiteloss-inspection-request.php or call: 360-427-9670,extension 400. MASON COUNTY 415 N 6TH STREET,SHELT967 ,E 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 8 The approval of this project is subject to the recommendations and specifications outlined in the attached geotechnical report or assessment. All applicable recommendations and specifications shall be applied to the development on this site. Any deviation requires stamped written approval from the registered design professional responsible for the report/assessment, and may require special inspection by same. Structures and/or land modifications (grading, cuts, fills, etc.) required in the geotechnical report/assessment, may require a separate permit. The geotechnical report!assessment shall remain attached to the approved building plans. 9 Installer must adhere to approved mitigation outlined in WA12025-00077 and WA12026- 00021.. 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. OFFICIAL USE ONLY MASONCOUNTY U TY DATE RECEIVED: h O9 C Cn Pj�.�c':"'.Jl {k'i�IYF�I AMOUNT RECEI U ✓/RECEIVED BY: W Cl) Public Health & Human Services 6Jr pRoPOPF N CD Environmental Health 360-427-9670,ext.400 or 360-275-4467,ext.400 �\ 415 N.6t(?Street' Shelton,WA 96584 SVVG a V O L/( J 0 z U1 , ON-SITE SEWAGE SYSTEM STEM APPLICATION APPLICANT PHONE j r David Ashby (808) 740-3690 0 c MAILING ADDRESS-STREET.CITY,STATE,ZIP CODE a 30 E Main Street - z,, Union WA 98592 d w SITE ADDRESS-STREET,CITY,ZIP CODE XX E Main Street :2 Union WA 98592 0 PHONE NAME OF DESIGNER N Arrow Septic Designs, Inc (360) 898-2255 PHONE IN NAME OF INSTALLER Ate° �� O W � W PERMIT TYPE(select one) � DRINKING WATER SOURCE O Ivl;RESIDENTIAL OSS L IlCOMMUNITY OSS Li_))COMMERCIAL OSS 1 !_;PRIVATE INDIVIDUAL WELL Lii PRIVATE TWO-PARTY WELL I )V TYPE OF WORK(select one) VJ PUBLIC WATER SYSTEM PUD#1 I t NEW CONSTRUCTION/UPGRADES 1REPAIR I REPLACEMENT OTHER DETAILS(select all that apply) ❑ TABLE X REPAIR CJI SUBMITTALS ❑ SURFACING SEWAGE ❑ EXISTING FAILURE ❑SHORELINE � O DESIGN FORM(REQUIRED) IiC.!lSEPTIC DESIGN(REQUIRED) BEDROOMS LOT SIZE WAS LOT CREATED AFTER 41112025? 00 I JWAIVER(S)(IFAPPLICABLE) 3 BR .23 ac ❑ YES Q NO 0 O DIRECTIONS TO SITE AND SITE CONDITIONS:(ex.locked gate) I Head east on W Alder St toward N 6th St. At the traffic circle, take the 3rd exit and go up � I � the hill. Go (R) at the traffic light onto E McReavy Rd. Turn (L) onto WA-106 W. Turn (L) 0 10 onto E Main St. Take 1st (R). Third lot on (R). - IO N O SITE MUST BE FLAGGED FROM MAIN ROAD AND TEST HOLES MUST BE FLAGGED WITH TEST HOLE NUMBERS. co OFFICIAL USE ONLY BELOW THIS LINE UPGRADE/FAILURE SOURCE(For reporting purposes) ❑VOLUNTARY ❑MAINTENANCE/PUMPING ❑BUILDING PERMIT ❑HOME SALE ❑COMPLAINT ❑OTHER: INSPECTOR SOIL LOGS `1(A\1 cL& w) C COMMENTS/CONDITION Z �S _ ®00 9r'1(i , • REc:ORD DRAWINCU AND INSTALLATION REPORT SOIL CODES: V=VERY GGRAVELLY S=SAND L=LOAM SI=SILT •C=CLAY E=EXTREMELY R=ROOTS REQUIRED FOR FINALAPPROVAL. INSPECTOR SIGNATURE DATE APPLICATION EXPIRATION DATE APPLICATION APPROVED/ISSUED BY DATE / /31 THIS FORM MAY BE,SCANNED AND AVAILABLE FOR PUBLIC VIEW ON THE MASON COUNTY WEBSITE Revised:4/14/2025 DESIGN FORM—PAGE ONE Assessor's Parcel Number: 3 2 2 3 2 - 5 0 - 0 6 0 0 4 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 onty,he Mason County 7� Web site.Maximum paper size: 11"X 17" 4EL TDE�*\ / O' 4 di Permit Number: SWG ( J^ oo c4 [6 Designer's Name: Arrow Septic Designs, Inc Applicant's Name: David Ashby Designer's Phone Number: (360)898-2255 Mailing Address: 30 E Main Street Designer's Address: 171 E Vuecrest Dr Union WA 98592 City State Zip Union, WA 98592 City State Zip Designer's Email paulaj@hctc.com Treatment Device ❑Glendon ❑Sand Filter O Mound O Sand Lined Drainfield O Recirculating Filter ❑ATU lJ Othesr00 gallon pre-trash tank Treatment Level(check all that apply): ❑A p 1i El C El BLI !]BL2 BL3 E 121 N Drainfield Type ❑Gravity 56 Pressure I 'Trench O Bed ❑ Sub Surface Drip Septic Tank/Drainfield Specifications Laterals Number of Bedrooms 3 Schedule/Class 40 Daily Flow:Operating Capacity 270 gpd Length 40 ft Daily Flow:Design Flow 360 gpd Diameter 1.25 in Septic Tank Capacity(working) NuWater BNR-500 gal Number 5 Receiving Soil Type(1-6) 4 Separation 5 ft Receiving Soil Appl.Rate 0.6 gpd/ft2 Orifices Required Primary Area 600 ft. 'Total Number of Orifices 40 Designed Primary.Area 600 ft2 Diameter 3/16 in Designed Reserve Area 675 ft2 ,",.?,, Spacing 60 in Trench/Bed Width. 3 ft Manifold Trench/Bed Length 200 ft Schedule/Class 40 Elevation Measurements Length header ft Original Drainfield Area Slope 5 % Diameter 1.25 in New Slope,If Altered 5 % Preferred manifold configuration used? l 'Yes O No Depth of Excavation Up-slope 20 in Transport Pipe from Original Grade Down-slope 18 in Schedule/Class 40 Designed Vertical Separation 16+ in Length 40 ft Gravel-based Drainfield Required? O Yes ES No Diameter 2 in Pump Required? i Yes O No Dosing and Pump Chamber Pump/Siphon Specifications Number of doses/day 4 Diff.in Elevation Between Pump& Uppermost Orifice 12 ft Dose quantity 90 gal Drainfield Squirt Height/Selected Residual(head) 2 ft Chamber Capacity(flood) 1,000 gal Uppermost Orifice Higher O Lower than Pump Shutoff Pump controls:Please check those required. Capacity @ Total Pressure Head 23.60 gpm i1 Timer ❑ B(apse Meter ❑4vent Counter Calculated Total Pressure Head 15.35 ft If Timer: Pump on 2 min ,.Pump off 6 hrs Comments APPROVED MAR 3 1 2026 MASON COUNTY ENVIRONMENTAL HEALTH Revised:4/14/2025 RET DESIGN FORM—PAGE TWO Assessor's Parcel Number: 3 2 2 3 2 - 50 -- 0 6 0 0 4 Permit Number: SWG DESIGN CHECKLISTS x - Scaled Plot Plan Scaled Layout Sketch Cross-Section Sketch EJ� Test hole locations 19 Drainfield orientation and layout . Reference depth from original grade: ETA Soil logs fib Trench/bed dimensions and 9 Septic tank Property lines critical distances within layout Drainfield cover 56 Existing and proposed wells Rf D-Box/Valve box locations Reference depth from original grade within 100 ft of property if Septic tank/pump chamber and restrictive strata: ❑ Measurements to cuts.banks,and locations Laterals,trench/bed,top and surface water and critical areas l6 Observation port location bottom ❑ Location and orientation of 9 Clean-out location O Curtain drain collector curtain drain and all absorption ld Manifold placement O Sand augmentation components 9 Orifice placement Other cross-section detail: ETA Location and dimension of 9 Lateral placement with distance Rf Observation ports/clean-outs primary system and reserve area to edge of bed Other Information E i Buildings E6 Audible/visual alarm referenced Yes No E� Direction of slope indicator ,6 Scale of drawing shown on scale d O Design staked out E6 Waterlines bar ❑ 9 Recorded Notices attached E6 Roads, easements,driveways, El Elevation benchmark and relative O 9 Waiver(s)attached • parking elevations of system components l ' O Pump curve attached E6 North arrow and scale drawing ❑ 69 Evaluation of failure shown on scale bar Non-residential justification O g Waste strength O C(Flow DEAL The undersigned designer must be notified by i bat ' ation Ed Yes O No PAULA Signature Sr i�N1ti" f Date F�CPIRES /15/ 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: 3/ iJz4 Environmental Healt Specialist Date CAUTION: DESIGN APPROVAL IS VALID ONLY UNDER THE FOLLOWING CONDITION: ✓ The design is stamped 'Approved"by Mason County Public Health. t (�Q ✓ 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:4/14/2025 f ' l o(p • GALS I = O ___ 4 It91;, `o- ,,ma o \0 L0 30 va L - PLOT ?LA_ AtVIi7 St'3 U N t (3A• 6 S�3 Z SHoL ®. G- --1 r �( 5� 33' s7® siDp� rat' �o t�� ( �z LC- Kew OO Audio-Visual Alarm 2 __ I2.• d O Cleanout _-,. Cleanout Sip 1, \� C� - 3v r r3 500 Gallon Pre-Trash tank j0 LL(3 NuWater BNR-500 ATU Tank ` G 1,000 Gallon Pump Chambel OValve Control Box rT O' -e+n. 3.> xtiv1 20'fri'- Arc r.- ®Sr-V o'- �y�l APPl OVED 5 MAR 3 1 2026 5100349 ,/ MASON COUNTY ENVIRONMENTAL HEA Q PAULA JOY JOHNSON i RET . • 3-•c 3—ZcP 40' Valve Control Box with 1.25 Boll Valves ± 3. 2* Transport Line 6' 1.25 Feeder Lines Typical Cleanout Lateral Typical Observation Port 1.25' 30' 60' Hie �J .'ad der f` r�fn• h fs x "k O I. r 5100349 i"4' PAULA JOY JOHNSON Lt��r(SE�'ri�k5i�lv��(� b•` EXPIRES 08l1i Detailed Drainfield L_ayoc Scale: I = 10' q4 Io' 20' to 12 Sandy Loam Filter Fabric b i 1 Cover / Fill t~n' l S C5) 40 1 .25" Sched. 40 Laterals 3/4' to 2-1/2• 1.25 Lateral 2O (8) 3/ 16 Orifices @ 60" O.C. Drain Per Lateral. 1 st & Last Orifice Rock 6 30" From End of Trench 36 t� Screw-On Ccp b + 45 Degree Elbow Lat aral Restrictive Layer End off Ntchl Drainfield ' Cross-Section View Detail - Clean Out Not To Scale Note: Cleanout to be from 0 to 6 inc-ies below Note; O Observation Port p R 0'J E D Finished Grade. Mark ends with Rebar. Clean Out To Be 4' PVC Pipe from Bottom of Trench 61 y Wj Required of the End of Each Lateral. To Finished Grade. Removable Cap shall be MAR 3 Y 2056 Installed on Observation Port Pipe. Archor �^F^ On Bottom with Glued-On Tee. A I I O W Septic Designs Minimum of 5 Total Required in System MASON COUNTY ENVIRONMENTAL HF�LTh1 (360) 898- 2255 RET 3 °I Length Length Orifice # Distance from Distance from Lateral# (In.) (Ft.) Spacing Orifices Feeder Line(In.) Cleanout(In.) 1 480 40 `,, 60 8 30 30 2 480 40 60 8 30 30 3 480 40 60 .8 30 30 4 480 -40 60 8 30 30 5 480 40 60 8 30 30 Total Lateral Length 200 Total#Orifices 40 GPM= 23.6 Dynamic Head Calculations Selected residual pressure: 2 ft. Length(Ft.) #Orifices Transport Pipe 40 40 0.40 ft. Feeder Total Lateral Line Length Lateral#1 40 2 42 8 0.15 ft. Lateral#2 40 7 47 8 0.17 ft. Lateral#3 40 -',.12 ., 52 8 0.19 ft. Lateral#4 40 17. 57 8 0.21 ft. Lateral#5 40 AP' ® ®E D 8 0.23 ft. Total Elevation Lift l�J 1200` . ft. MAR 32U2 26 Total Dynamic Head 15.35 ft. JASON COUNTY EN�IRONMENTAU HEALTH RET SECURED UD WITH GAS TIGHT SEAL THREADED UNION 24 DIAMETER ACCESS RISER t SERVICE FINISH GRADE _ VALVE• FROM SEPTIC L--+TO DRAINFIELD .TANN Li EMERGENCY STORAGE ANTI SIPHON VALVE HIGH WATER ALARM LEVEL -- _ • ..JNOEPENOEaT NORMAL TI OFF LEVEL' WORKING VOLUME FLOAT STEP FOR FLOAT 8EDWENT SHRSHROUD• CHECK VALVE• `: �h SEDIMENTS ' �t: I:IiI'.11 SUBMERSIBLE 1 �;1a`�� ' - IMENT - CENTRIFUGAL f`,: 5100349 ;S"A`) PUMP CHAMBER ;.0,. PAULA JOY JOHNSON . LIa S t5>:SiGN� CA I EXPIRES 09 5! ' - AS NEEDED Septic Tanks must meet standards required by WAC registered sewage chapter 272C tanks.and FIGURE 2 manufacturer=ustbe on�Dljeptofl Health g WA nnH Publication#337-022 Page 35 of 65 - 7 , , Bronze construction available(139 series) High head version available(145 series) ' ��` • Double shaft seal versions available for added protection Flow-Mate on models 140/145. For more information,see Technical Data Sheets FM2782,FM2783. In high head dewatering or effluent applications where pumping performance is critical, this robust PUMP PERFORMANCE CURVE family of pumps is known for reliability, MODEUg714a145 durability and performance. These n ro pumps are especially suited for harsh environments.Zoeller's coot run design €1 - and corrosion-resistant=powder coated ,° epoxy finish add up to a tong-Lasting, �° °°trouble-free product. "° APPLICATIONS: • STEP or onsite applications " w • Water transfer 0° • Light commercial dewatering uuur ° SPECIFICATIONS: � • 1-1/2"NPT discharge ® °•• 1/2 HP through 1 HP MADE IN THE USA ° Available in automatic or nonautomatic USIA6AlINRRlf1UfILSONfAIi = ° iu ie m • Model 137,139,140:1/2"(12 mm)spherical solids ° capacity with vortex impellers m n w `° • Model 145:3/4"(19 mm)spherical solids capacity with =Q vortex impeller n =°° '° ,62656 PUMP PERFORMANCE CURVE Dose-Mate MODEL 151/152/153 so This is our fastest growing line of effluent .x 14 a5 11 pumps.The 150 series is truly aworkhorse designed for reliability under extreme 12- 40 conditions in an effluent environment. 35 150seriespumpcurvescoverawiderange = 10 752 - of applications. They are well suited to 30 applications with low pressure pipe(LPP) Y 8 151 and enhanced flow5TEPsystems.Zoeller's 25 coot run design and corrosion-resistant, r6 20 powder coated epoxy finish, in addition to the hermetically sealed,oil-filled motor is and non-clogging vortex impeller add up to 4 a long-lasting.trouble-free product. 10 _— 2- APPLICATIONS: 5 • STEP or onsite applications 0 MADE IN THE USA 10 20 30 40 50 60 70 80 90 100 • Light commercial dewatering USIRlALIhIORII1OfUCOl11lT c°tuoNs SPECIFICATIONS: LITERS43 e0 ,z0 160 200 240 280 320 360 • 1-1/2"NPT discharge � uP P R 0\i P iNu1E 014508 • 3/10 HP through 1/2 HP ® �" MAR 3 c 2026• Available in nonautomatic or with a variable level piggyback mechanical switch MASON COUNTY ENVIRONMENTAL HEALTH • 1/2"(12 mm)spherical solids capacity with vortex thermoplastic impeller RET For more information,see Technical Data Sheet FM2784. ©ALL rights reserved. ZOELLER PUMP CO. 1 502-778-2731 1 800-928-7867 i zoellerpumps.com 9 sal 6 _ flnh&Anita s1gtti n1Hlt . P0.1 ' °2842 Pcaaal!1bn WA<)I3370 3611•x+98 1 A I.6D X49=3t7I 2. PAGE: 4 2,5(iOlri.unx.W AtL j014) . A(WOP51 C:Aar:U,XArION•• Y✓ATF.RT(GII)Ftl(}DCP rvi; . P15FP AHD SCREW'✓ *W -•7..'If;d)`'I•"' t" ' LID WI WAT(L?Th HT{Af l•LI (i T^_ @ CIIJW, '9(Y 1.4"-�F-:n._• Chc5Y P,!aP.A;l i`J('tf.:;`.l)F. } 'A I(AGUMAN PAL05f '• - Vl FL472_ TAH)(MODrI ,% Tt.`i .. ___..._....__..._._....._ _._, r--.,.-'------r ..�,..,.. ... r..•-' .._^.. .. ...._.. DATE MANUFACRJRED%X!X)tX-, ._`''`___.. '. MAX DEPTH OF COVER &F'.i', . •\ I.IQU(OCJ!PACTiY . 1PAI„ .. (itl.IXi`fR F D.�..... :s'Tri1cK Q O GChPLl(INfi ' O I Ufi/dt OF f) Ild ILCX Air 1A IT),)DL R(DCP.Of. 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O'rVf,'1d ANY I,LYiC 151)0."1(01.'4't'vQ1A F11[T(tP,.AE ' 7)FufI GRA[1411f1,UY',A(;F I0 A'AFII)CI1ANOIl(i.?110)1 C11.\(f.V,117.Y11:(10 TANK CL -c ' s•-Y DUAL PORT AERATOR WATERTIGHT LID VENT(typ). � RISERS(TYP) 36"MAX, 1'PVC(TYP) c 1/2'PVC MASTIC__ IAIRLINE ' Y COUPLING &REDUCER 6' j Y TEE E 1"PVC SLUDGE 12° RETURN LINE 2'PVC TRASH CHAMBER I DIGESTER CHAMBER CLARIFIER OPERATING CAPACITY:417 GALLONS OPERATING CAPACITY:421 GALLONS CHAMBER FLOOD CAPACITY:490 GALLONS FLOOD CAPACITY:494 GALLONS 160 GALLONS FLOOD.191 GAL.i 65' 58' 1 I 50" 54" I o l 36' a ee e e 1°X12' APPROVED ° e" ° TEE I MAR 3 1 2026 I I '•' DIFFUSER BARS(2) 12" SON COUNTY ENVIRON � MENTAL HEAALT } PARALELTOTANKWALL 4. I RET RETURN / 1.5 TAPER SIDE VIEW 1'1.4 ft STONE-FREE NATIVE SOIL OR COMPACTED SAND INSTALLATION INSTRUCTIONS OVER STONY SOIL 1)Excavate tank hole with vertical walls to 1 foot larger than tank on all sides. 2)If bottom of hole is stony,install 3'of compact sand&level 9'-2' out with screed. _ 3)Install tank in center of hole,keeping 1 ft.void space on P all sides. I 24'RISERS ) 24"BtowER I 4)As tank is filling with water,fill in void space with compact I i OUSWG CAS granular(sandy)soil free of large clumps of clay. I I I N TOP OF L! 5)Install rest of system,&affix risers to adapters with !I j s waterproof adhesive. 4,$, 6)Perform watertightness test in field as required by local I I I I I jurisdiction. I I 12•RISER I I 7)Upon approval to backfill,carefully backfill with native soils over top of tank. I TRASH CHAMBER I I DIGESTER I I CL4RIF/ERI 8)Final grade the surface to avoid chanelling surface L ______ I L________I L__ water toward tank. TOP VIEW Y=28ft AEROBIC TREATMENT TANK DETAIL FOR NuWATER BNR-500 TREATMENT UNIT ENVIRO-FLO, INC. REVISE°: 3/01/12 Wastewater Treatment Technologies �'''k•T °``� P.O.BOX 321161,Flowood,MS 39232 .• (877)836-8476 (601)845-4716 fax SCALE I n _ 1.4 ft. www.enviro-flo.net 4�. 1 . ik.i V: #Advrsnce3d Tcc3a4m +*tSystrrrs'B .'gn4irfl=Fiolne APPROVED MAR 3 1 2026 MASO akgTY ENVIRONMENTAL HEALTH } I � 1 C I 1 ` 1 S PARTS LIST NuWater NR Assembly Diagram A.DUAL PORT AERATOR M.POLY DIFFUSER BAR(2) B.315"RUBBER 90 W/CLAMPS(2) N.1"PVC(3 112"SECTION) C.318"BARBED ADAPTOR X 112'NPT(2) O.1"SLIP CAP D.112"SUP X 112"NPTADAPTOR P.1/8"CLEAR PVC HOSE(OPTIONAL 5 E t'STREET X.1/2"NPT BUSHING(3) Q.V2"PVC PIPE(BY INSTALLER) F.1!Z"90'ELBOW(3) R.1"PVC PIPE(BY INSTALLER) G.1"X 1.X 1/2"TEE S.2'PVC PIPE(BY INSTALLER) H.V$0"ELBOW(3) T.i/8"BARBED ADAPTOR TO 114"NPT(2) t.2'X 1"BUSHING U.1/2"STREET X V4"NPT BUSHING(2) J.2"SANITARY TEE V.1/2"PVC COUPLER(2) X.V PVC CROSS W.2"COUPLER(BY INSTALLER) L.9"COUPLER(BY INSTALLER) Revised 2/25/12 a w Septic Deoigno, Sue. e NuWater BNR Pretreatment = ; * !'W ' ' .V'J1 INSTALLATION& MAINTENANCE " �!}. Pressure Distribution Systems , �_ s,00�ng Y PAUTA JUY J0HNS0N .S�h 1. Install Laterals with contour of the ground. EX 2. Install trench bottoms 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 at distal end of each lateral in drainfield with bottom extending to the drainrock/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 not required. 8. Install check valve in pump outlet line to prevent system from draining back into the pump chamber. 9. 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. 10. 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. 11. Waterlines must be a minimum of 10' to any tank or drainfield(a reduction to 5' may be obtained with a State waiver on lots that meet minimum lot size). Encase all water lines within 10' of septic transport lines and under any driveway/parking areas. 12. Divert all storm water runoff away from on-site sewage system. 13. No curtain drains allowed within 10' of the up-slope edge or 30' of the down-slope edge of the drainfield and reserve area. 14. No vehicular traffic over drainfield area or tanks. 15. Inspect floats, clean filters, and test high water level alarm every 6-12 months as needed. 16. All materials and workmanship must meet County and State regulations. 17. Deviation from this design without prior approval from the Designer and Mason County Environmental Health Department will make this design null and void. 18. All manhole lids and access, sampling or inspection ports must have locking covers and be located at ground level. 19. All pressure systems with a pump chamber outlet higher than the drainfield must have an anti-siphon valve or a 1/8"hole drilled in the discharge pipe above the pump to prevent siphoning. Ensure anti-siphon hole sprays down/away from tank opening. 20.All transport lines under driveways or parking areas must be encased to prevent crushing. 21. Homeowner is responsible for all property lines and easements. 22. Please Note: When you begin using your septic system, contact your septic installer to discuss setting up a schedule for your required Operation& Maintenance on our ® NuWater pretreatment system. A P P R 0 E MAR 3 1 2026 D cI MASON COUNTY ENVIRONMENTAL HEALTH RET