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HomeMy WebLinkAboutSWG2020-00680 - SWG Application / Design - 12/30/2020 (3) MASON COUN 1 1 415 N 6TH S SHELTON: O-427-9670,EXT 400 JJiJI COMMUNITY SERVICES BELFAIR:360-275-4467,EXT 400 ELMA:360-482-5269,EXT 400 t3uilding,Planning,Environmental Health,Community Health FAX:360-427-7787 On-Site Sewage System Permit: SWG2020-00680 APPLICANT BAUM ET UX ROBERT RAY Phone: Address: MARIA LUISA MENDIOLA-BAUM SHORELINE, WA 98133 OWNER BAUM ET UX ROBERT RAY Phone: Address: MARIA LUISA MENDIOLA-BAUM SHORELINE, WA 98133 SEPTIC DESIGNER PAULA JOHNSON -Arrow Septic Phone: 360-898-2255 Designs Address: 171 E VUECREST DRIVE UNION, WA 98592 SEPTIC INSTALLER SONNY ROGERS-REI Contractors Phone: 888-737-9776 Address: PO BOX 1936 BELFAIR, WA 98528 Site Address: SE Azalea PI Primary Parcel Number: 319045500106 Permit Description: New SFR -2BR Nuwater Permit Submitted Date: 12/30/2020 Permit Issued Date: 01/25/2021 Issued By: Jeff Wilmoth Current Permit Fees Paid: $690.00 (additional fees may be required upon installation of system). Permit Expiration Date: 01/25/2024 (based on date of inspection) Permit Conditions: I 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 Drainfield 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: www.co.mason.wa.us/health/environmental/onsite/oss-inspection-request.php or call: 360-427-9670, extension 400. OFFICIAL USE ONLY -- DATE RECEIVED: MASON COUNTY — n COMMUNITY SERVICES AMDU REED RECEI E W rA Public Health(Community Health/Environmental Health) 365427-96 t—t-.SWWo ,WA 9 4467.exi.400 S W G � ) /V�` — Ô ã V � 0 � 415 N.6th Street Shelton,WA 98684 /'/` Z Ch ON-SITE SEWAGE SYSTEM APPLICATION APPLICANT PHONE m m m Robert Baum, c/o: REI Contractors (360) 990-3919 Sonny Rogers Z MAILING ADDRESS-STREET,CITY,STATE,ZIP CODE C P.O. Box 1936 Belfair, WA 98528 m SITE ADDRESS-STREET,CITY,ZIP CODE X XX SE Azalea Place Shelton, WA 98584 I (- NAME OF DESIGNER PHONE CD Arrow Septic Designs (360) 898-2255 NAME OF INSTALLER PHONE I Co REI Contractors - Sonny Rogers 9 (360) 990-3919 � PERMIT TYPE(select one) DRINKING WATER SOURCE CI, 0 RESIDENTIAL OSS l5COMMUNITYOSS 71_ItCOMMERCIAL OSS C PRIVATE INDIVIDUAL WELL PRIVATE TWO-PARTY WELL Z TYPE OF WORK(select one) PUBLIC WATER SYSTEM NEW CONSTRUCTION/UPGRADES U.IiREPAIR/REPLACEMENT OTHER DETAILS(select all that apply) ❑ TABLE IX REPAIR 0) 01 SUBMITTALS ❑ SURFACING SEWAGE 0 EXISTING FAILURE ❑SHORELINE IIDESIGN FORM(REQUIRED) SEPTIC DESIGN(REQUIRED) BEDROOMS LOT SIZE tp,rWAIVER(S)((FAPPLICABLE) 2 BR .24 Acres o T� o DIRECTIONS TO SITE AND SITE CONDITIONS:(ex.locked gate) From downtown take Olympic Hwy S (State Rte 3) toward the South end of Shelton. Turn I I 0 (L) onto SE Craig Rd and the first (L) onto SE Cole Rd. Follow to (R) at Fawn Lake r Neighborhood onto SE Crescent Dr., at T go (R) to stay on SE Crescent Dr., take 2nd (R) onto SE Azalea Place, Lot is on (R) with yellow sign "Div. 6, TR 106" I o 0 SITE MUST BE FLAGGED FROM MAIN ROAD AND TEST HOLES MUST BE FLAGGED WITH TEST HOLE NUMBERS. 0) 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 \.� 6 02020 SOIL CODES: RECORD DRAWING AND INSTALLATION REPORT V=VERY G=GRAVELLY S=SAND L=LOAM Si=SILT C=CLAY E=EXTREMELY R=ROOTS REQUIRED FOR FINAL APPROVAL. I P CTOR SIGNATURE DATE APPLICATION EXPIRATION DATE APP ATION APPROVED/ISSUED BY DATE HIS F MAY BE SCANNED AND AVAILABLE FOR PUBLIC VIEW ON THE MASON COUNTY WEBSITE REVISED 12/7/2015 DESIGN FORM—PAGE ONE Assessor's Parcel Number: 3 1 9 0 4 - 5 5 - 0 0 1 0 6 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" 4 1 7Y r S r x �a y� �; }h ,��; �e . .4 ` w'S'. ,._.b...::...�,�z4.,�.M,. ,.`..:..�".�..,y> � .��sxr� �,�� ' f�F�l.k�.T� DN Permit Number: SWG �t7vZC7�d y Designer's Name: Arrow Septic Designs, Inc Applicant's Name: Robert Baum c/o:REI Contractors Designer's Phone Number: (360)898-2255 Mailing Address: P.O.Box 1936 Designer's Address: 171 E Vuecrest Dr Belfair, WA 98528 Union, WA 98592 City State Zip City State Zip _ ( Y( oY Treatment Device ❑Glendon Btofilter ❑Sand(Filter O Mound ❑Sand Lined Drainfield ❑ Recirculating Filter,Type: Gt'Aerobic Unit Make/Model NuWater BNR-500 ❑Disinfection Unit Make/Model Other: Drainfield Type ❑Gravity 1 'Pressure Trench O Bed O Sub Surface Drip Septic Tank/Drainfield Specifications Laterals Number of Bedrooms 2 Schedule/Class 40 Daily Flow:Operating Capacity 180 gpd ,Length 22.5 avg ft Diameter 1.25 in 240 gpd ' Daily Flow:Design Flow . NuWater BNR-500 gal Number 6 Septic Tank Capacity .. Receiving Soil Type(1-6) 4 Separation 4.5 min ft Receiving Soil Appl.Rate 0.6 gpd/ft2 Orifices Required Primary Area 400 ft2 Total Number of Orifices 27 Designed Primary Area 405 ft2 Diameter 3/16 in Designed Reserve Area 405 ft2 Spacing 60 in Trench/Bed Width 3 ft Manifold Trench/Bed Length 135 ft Schedule/Class 40 Elevation Measurements Length header ft Original Drainfield Area Slope 3 % Diameter 1.25 in New Slope,If Altered 3 % Preferred manifold configuration used? I 'Yes ❑No Depth of Excavation up-slope 11 in Transport Pipe from Original Grade Down-slope 10 in Schedule/Class 40 Designed Vertical Separation 13+ in Length 150 ft Gravelless Chambers Required? O Yes O No G'Optional Diameter 2 in Pump Required? 56 Yes ❑No Dosing and Pump Chamber Pump/Siphon Specifications Number of doses/day 4 60 gal Difference in Elevation Between Pump Shutoff and Uppermost Dose quantity Orifice Chamber Capacity 1,000 gal Uppermost Orifice If Higher ❑Lower than Pump Shutoff Pump controls:Please check those required. Capacity @ Total Pressure Head 15.93 gpm fi 'Timer i�Elapse Meter l Event Counter Calculated Total Pressure Head 7.97 ft If Timer: Pu on li r. i , offs; 6 hr Comments JA 7 Fy .fiU2� v FNV'IRnNMMENTAL HEALTH J.Lip br hl DESIGN FORM—PAGE TWO Assessor's Parcel Number:3 1 9 0 4 -- 5 5 -- 0 0 1 0 6. Permit Number: SWG DESIGN.CHECKLISTS Scaled Plot Plan Scaled Layout Sketch Cross-Section Sketch 0 Test hole locations 9 Drainfield orientation and layout Reference depth from original grade: 66 Soil logs 6d Trench/bed dimensions and Q( Septic tank 19 Property lines critical distances within layout pf Drainfield cover 66 Existing and proposed wells Rf D-Box/Valve box locations Reference depth from original grade within 100 ft of property Rf Septic tank/pump chamber and restrictive strata: ❑ Measurements to cuts,banks,and locations 9 Laterals,trench/bed,top and surface water and critical areas 16 Observation port location bottom 91 Location and orientation of 1;2f Clean-out location 0 Curtain drain collector curtain drain and all absorption Qf Manifold placement 0 Sand augmentation components G11 Orifice placement Other cross-section detail: R1 Location and dimension of 66 Lateral placement with distance g Observation ports/clean-outs primary system and reserve area to edge of b 19 Buildings Other Information Rf Audible/v al a erenced Yes No Direction of slope indicator Rf Scalescale if 0,Design staked out It Waterlines bas ' O 9 Recorded Notices attached y ' ®Roads,easements,driveways, 9 ❑ Waiver(s)attached parking J1 ❑ Pump curve attached North arrow and scale dr irig 0 G�Evaluation of failure i-� 5100349 shown on scale bar / c^ PAULA JO V JOHNSON i Non-residential justification 1=ft' _ b 0 Q(Waste strength ExPIREs /15 0 i�Flow , °` ' ' DESIGN APPROVAL The unrsigred de igei�rr �e otified by installer at time of installation Q1 Yes 0 No Z,-2` -Lo O�vo Signature of 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- ' e regulations: En ro al Health p cialist Date 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: l- 21 ,Z ✓ Drainfield site conditions have not been altered to adversely affect conditions of design approva. 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. Updated Date: 12/7/2015 el✓ fox • p1'�fSC� �., I �o OO S .� ja - Drib rs , tr rvf L1 fi, le e � I cSe - II r i i.c�v nn I � Oo G5 d -- � i B� 5 t. Selma �,;,'•� � � _� I wa l o N r6' �tr(crr I&{o' 0 10 20 30 ' 0 A. s1,e-e ve wok r l'`L Ol Audio-Visual Alarm U)e-f I h Q' of Gin O2 COh Cleanout • T n • 3 NuWater BNR-500 ATU Tank O } O4 1,000 Gallon Pump Chamber = ` O5 Valve Con 1 B fft � + d • JAN252021 if(( 5100349 �� MASON COUNTY E,tiVIRONkIENTAL HEALTH JW Z o- $ PAULA JOY JOHN50N ExwwEs � . 25 O, C. or ZSl v 3flu - ZS� 6 0 � • • ��nec-k v aS.,�� � ems.- ' S� Detailed Drainfield Layout Typiwt Obsavotien Port • SC�C I ® 10 . Grade 0 10" 2O �'�10 i2• FRer Fobric � i A Orgnal . ,� t-1r1• � 1as- �orora to � 1r\a�►:�. S :l. 1 a� 6• . 36• S,0 w Ctp 13 �'' 45 Dtr a Ebm lateral Restrictive � • • -Drainfield • Cross-Section View Dead - a6 20 !b! To Sede Note: Cl 1=A W bs tram 0 to 6 be+ee bobw Notes o 0b�rvaiior► Port �����` Fe+i W Grade. Mont ids vM Rsbar: 00- Old: 'To'Be 4• PYC Pipe Ban= o! Trod+ t�►`�} Red of tho Er14 oP Eadt Lateral To FW*W Geode. i oL AM Cep " tw 4 t � Ardw- Arrow Sept io Designs OnBsttomwWad l�: 5100349 fd}7 ,� =r; PA��++U((L/AAAyy�Ja0Y J0H//N,S�0��++N Its '_ •�I�r. V ��71VG�� ' tfi� ti JAN 25 2f MASON COUNTY ENV/ROM ;- T ( jaw Length Length Orifice # Distance from Distance from Lateral# (In.) (Ft.) Spacing Orifices Feeder Line(In.) Cleanout(In.) 1 300 25 60 5 30 30 2 300 25 60 5 30 30 3 300 25 60 5 30 30 4 300 25 60 5 30 30 5 300 25 60 5 30 30 6 120 10 60 I 2 30 30 Total Lateral Length 135 (Total#Orifices 27 1 GPM= 15.93 Dynamic Head Calculations J4N252 Selected residual pressure: 2 EiAL HFAi.iH Length (Ft.) #Orifices jaw Transport Pipe 150 27 0.72 ft. Feeder Total Lateral Line Length Lateral#1 25 2 27 5 0.04 ft. Lateral#2 25 7 32 5 0.05 ft. Lateral#3 25 2 27 5 0.04 ft. Lateral#4 25 7 32 5 0.05 ft. Lateral#5 25 12 37 5 0.06 ft. Lateral#6 10 17 27 2 0.01 ft. Total Elevation Lift 5.00 ft. SECURED UD WITH GAS TIGHT SEAL THREADE_O UNION Total Dynamic Head u•OUIIiETt 7.97 ft. ACCESS RISER SERVICE AMENGRADE _ VALVE• =—TO DRAINFIELD • F SEPTIC L1 I ROM Ef1EROENCY STORAGE ANTI SIPHON VALVE• NIGH WATER ALAtM LEVEL — ..a1DEPe1De?r NKN�OFF LEVEL WORKING VOLUME - FLOAT STEM FOR FLOAT MDlINilNO ENCLOSED PUMP ®� ONIEi1T D• - CMECK VALVE• ... . _ •� ® SEDIMENTS P'•�Cli 1'.11 ." PAULA JOY JOHNN'SO . I . PUMP CHAMBER L'sC1 1AJ Si N _PMCLLt . 'AS NEEID_ Septic Tanks must meet standards required by WAC chapter 246-272C and FIGURE 2 manufacturer must be on Dept of Health list of registered sewage tanks. Page 35 of 65 _ • 7 cY r9. ✓��tjt '4n as x� f�/ Flow-Mate Dose-Mate In high head dewatering or effluent I This is our fastest growing Line of effluent applications where pumpingI pumps.The 150 series is truly a workhorse 11 performance is critical, this robust designed for reliability under extreme family of pumps is known for reliabili g tY conditions in an effluent environment.150 durability and performance. These series pump curves cover a wide range pumps are especially suited for harsh of applications. They are well suited to environments.Zoeller's cool run design applications with Low pressure pipe (LPP) and corrosion-resistant,powder coated and enhanced flow STEP systems.Zoeller's epoxy finish add up to a Long-Lasting, coot run design and corrosion-resistant, trouble-free product. powder coated epoxy finish,in addition to the hermeticallysealed,oil-filled motorand non-clogging vortex impeller add up to a long-lasting,trouble-free product. Qw yw O� wsn•euunrmuacaragn u—S MADE IN ��' un+•e�•n°,uswn°rmrn APPLICATIONS: APPLICATIONS: • STEP or onsite applications • STEP or onsite applications • Water transfer • Light commercial dewat ri g • Light commercial dewatering iOp SPECIFICATIONS: RJJ I SPECIFICATIONS: ?�s • 1-1/2"NPT discharge 1-1/2"NPT discha pi ?> _ • , t • 3/10 HP throughf , 1pl�4/ ' • 1/2 HP through i HP • Available in nonautomaticipfj a vanabe leueb. • Available in automatic or nonautomatic ' piggyback mechanical switch T4/L//I, S r' • Model 137,139,140:1/2"(12 mm)spherical solidsRn P 1/2"(12 mm)spherical solids ca w1thUlydrt capacity with vortex impeller ; „�- • Model 145:3/4"(19 mm)spherical solids capacity with thermoplastic impeller C 3 �F�` vortex impeller For more information,see Technical Data Sheet FM2 784. • Bronze construction available(139 series) • High head version available(145 series) • Double shaft seal versions available for added protection on models 140/145. For more information,see Technical Data Sheets FM2782,FM2783. PUMP PERFORMANCE CURVE PUMP PERFORMANCE CURVE MODEL 151/152/153 MODEL 13711401145 50 14 153 12 40 +e °0 - iiiiiii- 35 152 30 99 0 8 151 • 25 'n '° m o 6 20- - - - s - - - --- • o m e 15 s 2 ' 5 s 0 10 20 30 40 50 60 70 60 90 100 C GALLONS +° n .° ro w m m w ,ro LITERS 0 40 80 120 160 200 240 280 320 360 FMPMNrare 152056 FLOW PER MINUTE 014508 ©All rights reserved. ZOELLER PUMP CO. 1502-778-2731 1800-928-7867 I zoellerpumps.com WATERTIGHT LID VENT(tqP) DUAL PORT AERATOR RISERS(TYP) _ ihirJ -I- __ i 3li•MAX 1'PVC(TYP) ° _____ r7 ° 11E MAsnC 4• r COUPLING &REDUCER 6• I rTEE 1•PVC SLUDGE 12• RETURN LINE 2'PVC 1 TRASH CHAMBER DIGESTER CHAMBER CLARII:IER OPERATING CAPACITY:417 GALLONS OPERATING CAPACITY:421 GALLONS CHAMBER FLOOD CAPACITY:490 GALLONS FLOOD CAPACITY:494 GALLONS 160 GALLONS FLOOD:191 GAL. 68. 50• 54• 53• 9 - 202 •e '` 7 1 • • 1r 2 DIFFUSERSARS(2) - PARALEL TO TANK WALL I COl VIRONMENTAL HEA T a• X App SLUDGE RETURN 1 S•TAPER SIDE VIEW 1 STONE-FREE NATIVE SOIL OR COMPACTED SAND OVER STONY SOIL INSTALLATION INSTRUCTIONS i 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 g-r out with screed.3)Install tank In center of hole,keeping 1 ft void space on T --- -- O(D all Sides. 24•RISERS!(TYP) 24'BLO4)As tank Is filling with water,till in void space with compact I !I Ogranular(sandy)soil free of large dumps of day.5)Install rest of system,&affix risers to adapters with I I II I waterproof adhesive. 01r I 4$• 6)Perform watertightness test In field as required by local jurisdiction. I I I RISER I i 7)Upon approval to backfill,carefully back ill with native I I i I I soils over top of tank. I TRASH ClMMBER I I DIGESTER I ISddBttlFBl 8)Final grade the surface to avoid chanelling surface L— 'L———————J L——J water toward tank. ————— TOP VIEW 1•'.28 R AEROBIC TREATMENT TANK DETAIL FOR NuWA TER BNR-500 TREATMENT UNIT ENVIRO-FLO, INC. 'S°' 3/01/12 Wastewater Treatment Technologies „ sue P.O.BOX 321161,Flowood,MS 39232 SCALE (877)836-8476 (601)845-4716 fax " = 1.4 ft. e wino-no. t ' 1"�rltl VVat �" ... ... k,dva.,o«.i rr�at",araf'.OYi4v.».By Lrairkol=lsto,incs � • I i • 1 � { JAN 2 5 2021 ` COUNTY ENVIRONMENTAL HEA H PARTS LIST NuWater NR Assembly Diagram A.DUAL PORTAERATOR M.POLY DIFFUSER BAR(2) B.318'RUBBER W WY CLAMPS(2) N.?PVC(3.12"SEC'ROC+I) C.318"BARBED ADAPTOR X 112 NPT(2) 0.1"SLIP CAP D.117'SUP X 112"NPTADAPTOR P.t/8"CLEAR PVC HOSE(OP ZONAL 87 E t"STREET X 112'NPT BUSHING(3) Q.112"PVC PIPE(BY INSTALLER) F 112 90'ELBOW(9) R.1"PVC PIPE(BY INSTALLER) G.1"X 1"X 17 TEE S.2 PVC PIPE(BY.(NSTALLEft) H.1"90°ELBOW(3) T.1/8"BARBED ADAPTOR TO 114"NPT(2) I.2 X 1"BUSHING U.112"STREET X 114 I'ST BUSHING(2) J.2"SANITARY TEE V.112"PVC COUPLER(2) K.1•PVC CROSS W.7 COUPLER.(BY INSTALLER) L.V COUPLER(BY INSTALLER) Revised 2/25/12 (hww Septic 1`)eai no A ) NuWater BNR Pretreatment INSTALLATION& MAINTENANCE Pressure Distribution Systems pAUI A JOY JOHNSON' 'L'rd at " SiGN�l�' 1. Install Laterals with contour of the ground. ocp�aEs 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. Encase all water lines within 10' of drainfield 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. 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 a 1/8"hole drilled in the discharge pipe above the pump to prevent siphoning. 20.All transport lines under driveways or parking areas must be encased to prevent crushing. 21.Homeowner is responsible for all property lines. 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 your NuWater pretreatment system. ppv 8 �Lc Mjj JAN252021 MASON COUNTY ENVIRONMENTAL HEALTH JBW