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HomeMy WebLinkAboutSWG2023-00458 - SWG Application / Design - 10/23/2023 584 MASON COUNTY 415N6T"STREET, SHELTON, EXT 400 SHELTON:STREE360-4TTON, EXT 400 I. 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: SWG2023-00458 APPLICANT EMPIRE HOME CONSTRUCTION LLC Phone: 360-751-8062 Address: PO BOX 241 KELSO, WA 98628 OWNER HOWARD RICHARD N & KIMBERLEY Phone: Address: 2241 W DEEGAN RD W SHELTON, WA 98584 SEPTIC DESIGNER PAULA JOHNSON -Arrow Septic Phone: 360-898-2255 Designs Inc. Address: 171 E VUECREST DRIVE UNION, WA 98592 SEPTIC INSTALLER Allan Kirk-MASON COUNTY Phone: 360-426-0574 EXCAVATING INC Address: 30 E WILCHAR BLVD SHELTON, WA 98584 Site Address: UNKNOWN Primary Parcel Number: 320165304008 Permit Description: New 3bd ATU to pressure trench Permit Submitted Date: 10/23/2023 Permit Issued Date: 10/30/2023 Issued By: Rhonda Thompson Current Permit Fees Paid: $575.00 (additional fees may be required upon installation of system r_ Permit Expiration Date: 10/26/2026 (based on date of inspection) Permit Conditions: 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 Drain field 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: masoncountywa.gov/health/environmental/onsiteloss-inspection-request.Php or call: 360-427-9670,extension 400. OFFICIAL USE ONLY MASON COUNTY 10 I 23 023 m D RV - COMMUNITY SERVICES 5 PEGG"FDS` lC-i co m Rwtic H<.HH c Nn '. nmenul Health) ESEE.Tse, M oRm.»M SWG au).-3, - 0045°, = y ON-SITE SEWAGE SYSTEM APPLICATION 3 0 =HO._ o c Empire Home Construction I David Duvall (360)751-8062 eILLAGADDRESS-STREET.Cm,STATE ZIP CODE m E P.O. Box 241 r�ml LvB,I E(v(f ;T elso WA 98626 -9 A dngll ^ sITEADDRE Greenwoodcm.a° ce E Geed Ln II{ , helton WA 98584 m \AME OF DESIGNER °HONE n I N Arrow Septic Designs BY. (360)898-2255 E OF NSTALLER "' PHONE o 0 360 Mason County Excavating ( 490-3144 ) y - TTy,rseMa Pre) I DE NNRING Lw.�=u SOURCE 5 E t¢ W RESLDENTIALOSS r1 COMMUNITY OSS h.COMMERCIAL OSS I 0-PRIVATE INDIVIDUAL WELL D PRIVATETWOPARTY WELL Z ICY) EyEE a NEK NT „C) H RUBLE/WATER SYSTEM NEW CONSTRUCTION IUPGRADES _REPA.Ri REPLACEMENT DH_ Cail A i ❑TABLE IXREAR A I cn suBmiTTALs osuR Fa G SEWAGE 0 EXISTING FAILURE ❑ seoRa'N= CO CO p LOTSIZE aZDESIGN WAIVER(5) (REQUIRED/ 6e5c TIC DESIGN(REOLI3ED� .�RCOvs . .18 acres a WANER(S(IF APPLICABLE) 36RX I � EC OIRTIONS TO SIITEENO STTE CONDTONS!ex Eck:ag s) I Go out Hwy 3 and turn (R) onto E Agate Rd. Turn (R) onto E Crestview Dr. Turn (R) onto A Pkwy N. Turn (L) onto E Greenwood Ln. Destination on (L). Yellow sign: "Empire Homes' o I O -1 Icm co STE MUST/E FLAGGED FROM MALY ROAD AND TEST HOLES MUST BE FLAGGED MT.TEST HOLE NUMBERS. I OFFICIAL USE ONLY BELOW THIS LINE UPGRADE FAILURE SOURCE Ims repass;W rpoeen ❑VOLUNTARY 0 MA.NT_NANCE/PRIV.PIAG 0 BUILDING PERMIT 0./0ME SALE ECOMPVJNT 0 OTHER. INSPECTOR SOIL LOGS COAME.TS CONDI-IONS Z-7 + fi ( I i a -2s sawSe- Z�i- 14 1 I -Tit 3s ue^' RECO.D DEA'PANGAND INSTAGTTION RE ORT SOIL CODES GRAVELY S=S:ND L=_CAM 91=SILT D=CLAD E=FXT3EMELv R-ROOTS 1 REQUIRED POR FIrvnLAv°ROwL INSPECTOR SIGNATURE DA =!APFL CATION EXPIRATION CAE I .PPPLICATION APPROVE-D,ISSUED By DATE QI-v-vrn , D jc31 10c7.611G6 1 k -N ivk `�1 A61-91 77-3 THIS FORM MAY BE SCANNED AND AVAILABLE FOR PUBLIC VIEW ON THE MASON COUNTY WE9SITE �REmsED:rp2os DESIGN FORM—PAGE ONE Assessor's Parcel Number: 3 2 0 1 6 — 5 3 — 0 4 0 0 8 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.M?[imurn paper size: II"X 17" PARCELIDENTII+ICATiON Perrot Number SWGanz'3-0 D l'kCjto Designer's Name: Arrow Septic Designs, Inc Empire Home Construction Designer's Phone Number. (360)898-2255 Applicant's Name: Mailing Address: P.O. Box 241 Desi er's Address: 171 E Vuecrest Dr Kelso WA 98626 Union. WA 98592 City State Zip City State Zip `:. DESIGN PARAMETERS. Treatment Device ❑Glendon Biofilter 0 Sand Filter 0 Mound 0 Sand Lined Dramfield 0 Recirculating Filter,Type: gAerobic Unit Make/Model NuWater BNR-500 0 Disinfection Unit Make/Model Other: ,y Drainfield Type ❑ Sub Surface Drip ❑Gravity y Pressure trench 0 Bed Septic Tank/Drainfield Specifications Laterals Number of Bedrooms 3 Schedule/Class 40 Daily Flow:Operating Capacity 270 gpd Length 50 ft Daily Flow:Design Flow 360 gpd Diameter 1.25 in Septic Tank Capacity(working) NuWater BNR-500 gal Number 4 Receiving Soil Type(1-6) 4 Separation 5 ft Receiving Soil Appl.Rate 0.6 gpd/ft'- Orifices Required Primary Area 600 ft'- Total Number of Orifices 40 Designed Primary Area 600 1:12 Diameter 3/16 in Designed Reserve Area 600 ft7 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 0-1 % Diameter 1.25 in New Slope,If Altered 0-1 % Preferred manifold configuration used? CrgYes ❑No Depth of Excavation Up-slope 6-11 in Transport Pipe from Original Grade pow-slope 6-11 in Schedule/Class 40 Designed Vertical Separation 12+ in Length 75 ft Gravelless Chambers Required? ❑Yes O No Eli Optional Diameter 2 in Pump Required? RI Yes 0 No Dosing and Pump Chamber Pump/Siphon Specifications Number of doses/day 4 Cliff_in Elevation Between Pump&Uppermost Orifice t0 ft Dose quantity 90 gal Drainfield Squirt Height/Selected Residual(head) 2 ft Chamber Capacity(flood) 1,000 gal Pump controls:Please check those required. Uppermost Orifice Higher ID Lower than Pump Shutoff timer G�Elapse Meter fi'Event Counter Capacity(el)Total Pressure Head 23.6 gpm 2 minutes 6 hours Calculated Total Pressure Head 14.06 ft If Timer: Pump on ,Pump off Comments 1 DESIGN FORM—PAGE TWO Assessor's Parcel Number: 3 2 0 1 6 — 5 3 -- 0 40 0 8 Permit umber: SWG DESIGN CHECKLISTS Scaled Plot Plan Scaled Layout Sketch Cross-Section Sketch It Test hole locations 12iDrainfield orientation and layout Reference depth from original grade: lid Soil logs E4 Trench/bed dimensions and 54 Septic tank Property lines critical distances within layout 2 Drainfield cover lidRi D-Boxalve box locations ❑ Existing and proposed wells /V Reference depth from original grade within 100 ft of property RI Septic tank/pump chamber and restrictive strata: ❑ Measurements to cuts, banks,and locations Laterals.trench/bed,top and surface water and critical areas Eil Observation port location bottom ❑ Location and orientation of 6d Clean-out location 0 Curtain drain collector curtain drain and all absorption g Manifold placement 0 Sand augmentation components 121 Orifice placement Other cross-section detail: 64 Location and dimension of Lateral placement with distance 64 Observation ports/clean-outs lidprimary system and reserve area to edge of bed Other Information iii Buildings fa Audible/visual ..°l`r referenced Yes No 64 Direction of slope indicator 61 Scale of dra .51 n on scale lif 0 Design staked out 64 Waterlines bar ± 4 ❑ It Recorded Notices attached Eti Roads,easements, driveways, .1: ❑ It Waiver(s)attached parking irer `.�1Y�j) 64 0 Pump curve attached Erd North arrow and scale drawing l . ..s r L'+ ❑ f�Evaluation of failure shown on scale bar ,rv,' siF,uyss Non-residential justification '� PAULA JOY JOHNSON tk 0 51 Waste strength 1:. .41 e _ 0 us Flow liiv SCS.4 e.StGTIEN 1'DESIGN A sV DESIGN APPROVAL The undersigned designer must be noti by in taller at time of installation M Yes 0 No r1�✓L to- r8—Z3 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-site regulations: 1b13afz3 Environmental Health S ecialist Date CAUTION: DESIGN APPROVAL IS VALID ONLY UNDER THE FOLLOWING CONDITION: ✓ The design is stamped"Approved"by Mason County Public Health. O �� / 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. Updated Date: 12/1/2015 APPROVED OCT 3 0 2023 L'1sc4 couA _til'lch4L1 ALycA'_Pt V Ii - 'e. r i J \ _ N G r'; �� I - - s 1 { al - $ ! ' Ciko L. j i . W r2dIF- 1 ? SLEEvE WA-CE2LT� ( p EN \ m N / sWITHINrttc to of ANN _ L GREENW��D Lid- IG/// SE�LG GOMPoNENT 15 SCALE : \''r1,0' • �i o •,u zo ;o AO Q YLCT�LAN Div E w 3 o ,1 23P�QKtN C 0 'll Etvwmc C\oMr Conct. °a.' :_ _ 1 1 Pat.EtAz-32016-5 -0t008 211 x 4s' E Cu:EENv4009 LNI. 309- ManU-co,c-tNre!A. }2,c re)E O 7a o • O 2• AfiI � 50' odd , M�, rillall A:TOT beiX — — j •4t1 (l*2 o-5r dAk _2-1130" o0s'tYocts *0 Gory pcxckCvt za' *)-^'24(0cs1 -rroofS -I'a 1 i k'll . -- - - -. - - - 15, *3n'2_5., \ +vaais to (4) 3.x50. primanA dram-falc{ -frerviAg. kill ?ciCvzAS. Q 510.C2 Wl C2 ) 3xlo' 3(3) 3•X tie' r{SZYvCS As t"} P it- 5 xev; n OC( 302023 Ol Audio-Visual Alarm t kS0S0::.a tiu2, �_p7-`.LT' ie ._ (3 Cleanout h.E j .° �'9 6 i1 . t.�n © �. 500 Gallon Pre-Trash tank r Oh�t) YC l�N1YCd �fPIASi'�� 'M�hKS PtP Uu i t.�. smw.n �., O NuWater BNR-500 ATU Tank AIt PAULA JOY JOHNSON'. nerusE b i tit" O 1,000 Gallon Pump Chamber EXPIRES i O Valve Control Box -3 o I nTreidAlep(17 Lln , a.is la d - • — _.7> sr 3 gransamg. simile -S. g�tt ( USK•S Mi•'limtw,MIMIESIIIIII -�� g41.C $°K 5� �r.L �'K • y1am�__ I .w ' A. 30 FetaP , T�` ri „'u-..s (*On 3av 50as. :'4 /a` 0—17o 61.Fe_ Co" ettev eh D' Se la ' ,S okosro `ltt '�tt,fitle sty tad obr P P 9 mow. � „v `� ' �h I e K 36` 14/, b' PAULA JOY JONNSDN'�t/� /Z+ pp ��a.AanESIGNE7( ' v), d!��t xnir57&FS- Brtytii C'rnsS-SCC a- 9ta12 : `„= t, SCREW ON CAP NOTE, `" I ' tt" 2 ` _. O=OBSERVATION PORTS--TO BE 4" 45 DEGREE ELBO OR PVC PIPE FROM BOTTOM OF TRENCH. LATERALS EEPING 90 j TO FINISHED GRADE. REMOVABLE END OF CAP SHALL BE INSTALLED ON DITCE, OBSERVATION PORT PIPE. GLUED ON b DETAIL TEE AT BOTTOM. CLEAN OUT MINIMUM OF Lf IN SYSTEM. LATERALS ARE TO BE CENTERED NOTE, CLEANOUT TO SE P R M O TO 6 INCHES BELOW FINISHED DE. IN TRENCHES MARK ENDS WITH REBAR. LEAN OUT REQUIRED AT END OF EACE LATERAL. 50 ' TRENCF EQD pCNIFOLpDORIFICES) ORIFICOS 4, 36"FROM MANIFOLD 30"FROM ELBOW APPROVED (ET 3 0 2023 'hscvc:.',r: E _;,,,,_,,-, �I-. • Length Length Orifice # Distance from Distance from Lateral# (In.) (Ft.) Spacing Orifices Feeder Line (In.) Cleanout(In.) 1 600 50 60 10 30 30 2 600 50 60 10 30 30 3 600 50 60 10 30 30 4 600 50 60 10 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 75 40 0.75 ft. Feeder Total Lateral Line Length Lateral#1 50 2 52 10 0.29 ft. Lateral#2 50 7 57 10 0.31 ft. Lateral#3 50 12 62 10 0.34 ft. Lateral#4 50 17 67 10 0.37 ft. Total Elevation Lift A f d�, R(D`�,�F Li 10.00 ft. Total Dynamic Head OCT 30 2023 14.06 ft. • M2•50'; Gi..i, Pt,.C'i4c',T;_ FIE 1'I'saunas . Ap®tMIbM t.m YIITH Oaf TIGHT Wit: 24•D4A11ETEO ACCESS NSW • SERA[ _�__ VALVE• SISK GRADE —men,ice'[ ii (i 'd FrayaroaAOE ANTI SIPHON L NM WATER AVM LEVEL IHill 1LOAT IDEN _ � ,FOR FLOAT „p. ' CHECK VALVE a4 L ., s Lim � . PIMP Y. `NF REW—Ts CalTRWUSAL I.J49 1�VkSdT-A ..Am �.. 'AS NEB EI.RPES �It Septic Tanks must meet standards requ ired by WAC chapter 246-272C and FIGURE.2 mauufac -r must be on Dept of Health list of registered sewage tanks. 5., T f Pece35 of65 -.. - ..,.si:..a 7 MH 137 ff W Y Bronze construction available(139 sees)j High head version available(145 series) • Double shaft seal versions available for added protection Flow-Mate on models 140/145. For more informaton,see Technical Data Sheets FM2782,FM2783. In high head dewatering or effluent applications where pumping performance is critical, this robust _ �_.._. .._. a ' PLMPPEPSOl NCE CURVE family of pumps is known forreliability, MacE.n'nwN°5 durability and performance. These ,_ \ pumps are especiahy suited for harsh environments.Zoeller's coot run design in. and corrosion-resistant,powder coated C epoxy finish add up to a tong-lasting, _ 9 trouble-free product. - m APPLICATIONS: ' I ! I 1 . • STEP or onsite applications 9 1I r • Water transfer 7 1 C i• Light commercial dewatenng I i 2 SPECIFICATIONS: NPT discharge • 1/2 HP throughl HP MADE IN THE USA • Availablelein In automatic or nonautomatic I$IK A IWCPIIIONS.YIX I • Model 131.139.140:1/2"(12 mm)sphericaL solids A C �, ��4-) --,'p e~. I +, !. - capacity with vortex impeller � ) - ��i . i� 4 ' . �� . . '� .. • m • Model 145.3/4"(19 mm)spherical solids capacity with o -- x vortex impellerlill ti OCT 3 0 2P23 �szsss 5Ch C.,c l - �i14 15), . 15 -41` `�� SETc. - '� �., �� ON LY 111. PUMP PERFO NCE CURVE Dose-Mate of e s ka(e MODE 151/ 52/153 q This is our fastest growing line of effluent P 14- es 153 pumps.The 150 series is truly a workhorse designed for reliability under extreme 12- 40 , I I conditions in an effluent environment. I 150 series pump curves covers wide range = -,o-i as 152 of applications. They are well suited to t, :m T applications with tow pressure pipe(LPP) I and enhanced flow STEP systems.Zoeller's a 25 s I He coal run design and corrosion-resistant, 3 _ powder coated epoxy finish, in addition _`- d0 I'I to the hermetically sealed, oil-filled motor °- 15 o I and non-clogging vortex impeller add up to a long-tasting,trouble-free product. 10 APPLICATIONS: uI��® - STEP or onsite applications a MADE IN THE USA 10 io _o 40 a co is BE a' 100 • Light commercial dewatenng IQII(AkQEvmoi MAIM oA_ONE SPECIFICATIONS: LTEes i a0 ea 120 1w 200 2m 280 ep 353 • b 1-1/2"'NPT discharge el) P.M PH MINUTE '•"e • 3/10 HP through 1/2 HP F • Available in nonautomatic or with a variable level piggyback mechanical switch • 1/2'(12 mm)sphericalsolids capacity with vortex thermoplastic impeller For more information,see Technical Data Sheet FM2784. Ale— ©AU rights reserved. ZOELLER PUMP CO. I 502-778-2731 1800-928-7867 I zoellerpumps.com 9 — 1 \ l LID VFM:M) DUAL FORT AERATOR-, WATERTIGMC - 1I RISERS(TYPI \ 1 � 1 J 35.M 1'PVC(YP) - 4 tI ( l 12'PVc NRLINE,//- MASTIC __A I 2'COUPLING ''. ( &REDUCER ? 5' L —( As) 7 TEE1I ,.. _ 1'PVC SLUDGE IT RETURN LINE I � V i 2"PVC -1 1. �� TRASH CHAMBER DIGESTER CHAMBER CLARIFIER OPERATING CAPAOT':411 GALLONS OPERATING CWACTY:42 GALLONS CHAMBER FLOOD CAPACITY 490 GALLONS F_OOO CAPACITY-49i GALLONS 1 160 GALLONS ,FLOOD:191 GAL 65' S9' // I I 54 I I50' I53' 35' " t'x 2' 1 �. N <i"wf I EE i, i < w, t/ L t_/ OCT 3 0 21 3 �. ? /j i 17 y t ( LYL ✓II PABALE TO TANIK)WALL 1� p ]• R T SLUDGE REJRN \ \ SOE ///�j 1S'TAPER -?f A STONE-FREE NATIVE SOIL OR COMPACTED SAND INSTALLATION INSTRUCTORS OVER STONY SOIL 1)Excavate tank hole with vertical walls to 1 foot larger than tank on all sides. 2)If bottom of role is stony,Install 3"of compact sand&level 4 9-2' k out with screed _ — 3)Install tank in center of hole.keeling 1 fL void space on I- all sides 124 RISERS 24'BLOWER I 4)As tank isfilfng with water,fill in void spacewih compact I f Ft,Ous,NGcas 1 granular(sandy)soil free of large clumps of clay. / 5)Install rest of system,&affix risers to adapters with i / waterproof adhesive. L / ''., I \ oao �11 ■ 4a 6)Perform watertghlness test in field as required by local \ jurisdiction.. \ / I I 7)Upon approval to backfiII,carefully heed ll with native IZRrsFn I soils over lop of tank. TRASH CHAMBER pyl_F �,8 IIry nRPIFRI 8)Final grade the surface to avoid Chaneiling surface I water toward tank. �- __ ____ TOP VIEW P-4 - AEROBIC TREATMENT TANK DETAIL FOR yc. i•! 4 :. NuWATER BNR-500 TREATMENT UNIT ENVIRO-FLO, INC. REVISEDr ttln Net Wastewater Treatment Technologies 3/01/12 ."',-r ng ' P.O.BOX 321161,Flowoad,MS 39232 (877)836-8476 (601)8454716 fax SCALE n = 1.4 ft. www.enviro-fi0.net -79 —` t IN Water h illo illre O 1--. lA u :Ill 40 t. ; bAil nor - a� 4 N �tv� CCT302 j�, rn IU„ .I ILL I � rQ �� cCI lJ PARTS LIST NuWater NR Assembly Diagram 9iri,,,,,s I j A.OVAL PORT AERATOR M.POLY DIFFUSER BAR Q) B.3P RUBBER 90°'NI CLAMPS LE) .Ni'PVC(_1 T'SECTION) C 318'BARBED ADAPTOR X Ir NPT(2; 01"SLIP CAA 0/ firl\_az 3.IS'SUP 1/2'NPT ADAPTOR P b8'CLEAR?'VC NOSE;OPTIONAL 5 Co E I'STREET X I?NPT BUSHING(3) C 1(2 AVE PIPE(B'Y INSTALLEP.i F.f it 9I 1/7 TE 3 �d O R. 'PVC PIPE(BY RNSTALLER) `(jam\_D' G.1'91'XSO'TEE TS 2'PVC PIPE(BY INSTAL1203 4,t'90°EL80W(3) T. Il9'BARBED ADAPTOR TO:I<"NPT(2) 7 X 1'BUSHING U 1/2"STREET X 1u'NPT BUSING 12) 7 SANITARY TEE V 1l2 PVC COUP-ER(2;. K.'.'PVC CROSS W Z COUPLER(3Y INSTALLER, L I"CCUPL ER(BY INSTALLER) vryf Revised 2/25/12 VC56— 1 Clueut Septic Deatgrta �e NuWater BNR Pretreatment ttek i • it INSTALLATION &MAINTENANCE .,.s' . . .4.4 Pressure Distribution Systems :. .• .. SGc24 y j ,PAULAAc��JOY JOHNSON roFISR5ga ION 1. Install Laterals with contour of the ground. OtP azs 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. OCT 3 0 20?3 of 9 p:T