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HomeMy WebLinkAboutSWG2023-00100 - SWG Application / Design - 3/17/2023 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,EXT400 f. FAX:360-427-7787 On-Site Sewage System Permit: SWG2023-00100 APPLICANT JACK KUUSISTO Phone: Address: 832 21st ST SE AUBURN, WA 98002 SEPTIC DESIGNER PAULA JOHNSON -Arrow Septic Phone: 360-898-2255 Designs Inc. Address: 171 E VUECREST DRIVE UNION, WA 98592 SEPTIC INSTALLER MASON COUNTY EXCAVATING INC Phone: Address: 30 E WILLCHAR BLVD SHELTON, WA 98584 Site Address: 271 E Lakeshore Dr E Primary Parcel Number: 220175000008 Permit Description: Repair 2BR - NuWater Permit Submitted Date: 03/17/2023 Permit Issued Date: 03/28/2023 Issued By: Jeff Wilmoth Current Permit Fees Paid: $780.00 (additional fees may be required upon installation of system). Permit Expiration Date: 03/17/2026 (based on date of inspection) Permit Conditions: 1 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/onsite/oss-inspection-request.php or call: 360-427-9670, extension 400. DESIGN FORM—PAGE ONE Assessor's Parcel Number: 2 2 0 1 7 — 5 0 — 0 0n 0 0 8 A design will be reviewed when 3 copies of each of the following are submitted: L ,R C' been signed and dated. Scaled layout sketch,including all� pplic�ms o heckli't Completed design form that has gn 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"X 17" •FRCEL IDENTIFICATION �l,�.Z` Permit Number: SWG � t' ��Q v(l Designer's Name: Arrow Septic Designs Jack&Carol Kuusisto Designer's Phone Number: (360)898-2255 Applicant's Name: 171 E Vuecrest Dr Mailing Address: 832 21st St SE Designer's Address: Auburn WA 98002 Union WA 98592 City" w.., ' ' :.•4 � x �, .Zip City ._ State City State Zip Treatment Device ❑Glendon Biofilter 0 Sand Filter 0 Mound 0 Sand Lined Drainfield 0 Recirculating Filter,Type: Lir Aerobic Unit Make/Model NuWater BNR-500 0 Disinfection Unit Make/Model Other: Drainfield Type ❑Gravity RI Pressure [Trench 0 Bed 0 Sub Surface Drip Septic Tank/Drainfield Specifications Laterals Number of Bedrooms 2 Schedule/Class 40 Daily Flow:Operating Capacity 180 gpd Length 35 ft Daily Flow:Design Flow 360 gpd Diameter £ZOZtrHb 1.25 in ir; 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/ft2 Orifices Required Primary Area 400 ft2 Total Number of Orifices 28 Designed Primary Area 420 ft2 Diameter 3/16 in Designed Reserve Area 420 ft2 Spacing 60 in Trench/Bed Width 3 ft Manifold Trench/Bed Length 140 ft Schedule/Class 40 Elevation Measurements Length header ft Original Drainfield Area Slope 2 % Diameter 1.25 in New Slope,If Altered 2 % Preferred manifold configuration used? g Yes 0 No Depth of Excavation Up-slope 13 in Transport Pipe from Original Grade Down-slope 12 in Schedule/Class 40 Designed Vertical Separation 14+ in Length 40 ft Gravelless Chambers Required? 0 Yes 0 No Elf Optional Diameter 2 in Pump Required? fif Yes 0 No Dosing and Pump Chamber Pump/Siphon Specifications Number of doses/day 4 Diff.in Elevation Between Pump&Uppermost Orifice 7 ft Dose quantity 60 gal Drainfield Squirt Height/Selected Residual(head) 2 ft Chamber Capacity(flood) 1,000 gal Pump controls:Please check those required. Uppermost Orifice ill Higher 0 Lower than Pump Shutoff Capacity @ Total Pressure Head 16.52 gpm fi 'Timer MElapse Meter ( 'Event Counter 9 71 2 minutes pump off 6 hours Calculated Total Pressure Head ft If Timer: Pump on Comments P P R 0 V E r lMAR 2 8 2923- .SON-COLiNTY ENVIRONMENTAL HEALTH Ia�I JBW DESIGN FORM—PAGE TWO Assessor's Parcel Number:2 2 0 1 7 — 5 0 -- 0 0 0 0 8 Permit Number: SWG DESIGN CHECKLISTS y Scaled Plot Plan Scaled Layout Sketch Cross-Section Sketch Ft Test hole locations 121 Drainfield orientation and layout Reference depth from original grade: 6t Soil logs Et Trench/bed dimensions and 56 Septic tank Property lines critical distances within layout PS Drainfield cover ❑ Existing and proposed wells lif D-Box/Valve box locations Reference depth from original grade within 100 ft of property 1t Septic tank/pump chamber and restrictive strata: Q( Measurements to cuts,banks,and locations lil Laterals,trench/bed,top and surface water and critical areas 64 Observation port location bottom ❑ Location and orientation of 62( 0 Curtain drain collector Clean-out location 0 Sand augmentation curtain drain and all absorption RI Manifold placement components lif Orifice placement Other cross-section detail: 0 Location and dimension of Lateral placement with distancelif Observation ports/clean-outs lifprimary system and reserve area to edge of bed Other Information Buildings lg Audible/visu46la referenced Yes No EZ Direction of slope indicator lidScale of dr•r . i'on scale It 0 Design staked out (.5,,,,)0 Waterlines bar ae. •.>�,st Ili 0 Recorded Notices attached • Roads,easements,driveways, \t. 0 lt Waiver(s)attached parking Gd 0 Pump curve attached 0Fli Evaluation of failure North arrow and scale drawing .. l�. 51dU349 shown on scale bar , PAULA JOY JOHNSON • � Non-residential justification '"•UldnciS Mgiairk` 0 I1 Waste strength EXp t i ❑ 56 Flow DESIGN APPROVAL The undersigned designer must be • ed by •' stal rat time of installation 6�Yes 0 No 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 • e r• lations: F / ( ,(M. 3-27 -2-3 E, i ffir tal Health Specialist Date CAUTION: DESIGN APPROVAL IS VALID ONLY UNDER THE FOLLOWING CONDITION: ✓ The design is stamped"Approved"by Mason County Public Health. 2 ✓ The Onsite Sewage Permit has not expired,the Permit Expiration Date is: 3 2 - - Z ? ✓ 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: 12/7/2015 Arrow Septic Designs 171 E. Vuecrest Dr. Union, WA 98592 March 17,2023 Mason County Department of Health Services 415 N 6th St Shelton,WA 98584 RE: Jack&Carol Kuusisto Property(Parcel#22017-50-00008) Septic Evaluation of Failure Dear Inspector: Attached is a replacement/upgrade septic design for a property located at 271 E Lakeshore Dr E, Shelton,WA 98584 in the Timberlake community. There is an existing 2-bedroom house that was built in 1960 on the site. The septic system is a gravity trench system installed in the same era. Note: the county has the house shown on Lot 7 but it is really on Lot 8. At service visits in December-2022 and January-2023, it was discovered that the drainfield was not taking water the way it should. Upon further investigation, it was found the outlet and d-box were full of roots and only one of the two drainfield legs was accepting effluent. Records indicate the existing system consists of a 1,000- gallon single-compartment septic tank followed by a gravity drainfield 2' wide x 110' long, for a total of 220 s.f.. The old drainfield is to be abandoned. The existing tank may be decommissioned or removed, or it may be retrofitted with risers and lids and used as a pre-trash tank at the discretion of the installer if it is in acceptable condition. The proposed 2-bedroom replacement system will include a new NuWater BNR-500 pretreatment tank and a 1,000-gallon minimum pump tank. All tanks are to be protected from vehicle traffic. The proposed drainfield is to be 140 lineal feet x 3' wide shallow pressure trenches totaling 420 s.f., or a minimum of 400 s.f.. We are also proposing a new control panel with timer, elapse meter and event counter to extend the life of the system and to facilitate future operation and maintenance. This system meets Table IX repair standards with the new proposed primary and reserve drainfield being over 25 feet to the stream,treatment level B without disinfection, and 14"(12" minimum)vertical separation. A Declaration of Covenant will be filed on the deed to allow the new tanks to be installed on Lot 7 while the house and drainfield are on Lot 8. The property owner's contact information is as follows: Jack& Carol Kuusisto 83221stStSE Auburn,WA 98002 (253)545-9138 If you need further information,please contact my office at(360) 898-2255. Sincerely a • 4PPROVE 1,4 MAR 2 8 2n73 e M )NtiJUNTY ENVIRONMENTAL ihjEA,T,- • -; enss ite ewater Treatment System Designer 1'r 510u.;49 A J8+W a-rck PAULA JOY JOHNSON ," L'1Cl=fJS� DESiGN> t 1- fj. ( ' / / 1 //ii / t :414j 4 --- i,,VII -...t,''s 4 '' '' e, yyt i.• e,, .Y �1 .V- r, V/ S c,n • 'a t ,• Zmo . r TM '` "'°'-•.�. ;' > DD +41; 2;,ZA; ` i= 3ia ¢;a)'~ -``k• #f;$ -t - ''mot' ._ ; i.'.. ____.__ —, N a,,} ,,�.l�!�� E,.L D i-.° 4.J ,„sC ti k xzE, •'1.. i -, ,. • Z + f 'f 1� v E 'l ! '" \ .J ?s 4 •-"'.t \h4' Y4 Z .J J 1 ' CJA m •�An P. Carl• _ '"� _1-d. I. 4'.w ��°' -ir `�lryG•, kIt - a. �—�!.. y D -4 �. ;'1 --�:: �st '•14', .v �a t .� Ill '' 1 O M A li a ` �. % m. ,i y . f+�r` Z z + • \� - " ..`i4'•' 14 A Jr ow-�.^J - sIs 'y.%4 .J., k .�..• 4 ,, .^^\ , ,, , � tip. .,,„ t� 4 • 0 ,� C, `, ` rt Jo,- • . ` a r �' ".00 4• 7t i I APPROVE ... . Naas MAR 2 8 2023 ON COUNTY ENVIR .4 ' uktviENTAL HEALTH ��-t D yew • A Piot P►ah *1b.. JaCK “AraikvuSisto +�y�• �,;- Parc?1 j22 017-50- 000055 e ...�;, 271 l✓ Lake,Ykore Dr r •. Ih. 1^/y 510 d9d9 ,,N N PAULA JOY JOHNSON .'A S C c k: i 3 0 L•tCE'�t�)= bg iar;l t' i 1 J 1 4 e, EXPSR£S 1 / o f5 30 yS Go a T 49.9 2. Tts+ Holt (Do.39 . $t I ti 2.7° [Davy) ->•o rill/ . 7o i- -to wen" a re0. Part icillj diS+urbcd/fharco l . # Z^+ 0-7"- i11 , Lf2" Iocu1t fir'�y roo-FS to wlott i mic d So;1/ \ — , y Ckarcoal 1 , i -Vm 2 (LI) 3" x 3 5 p r; vYw r (�� y _ C7fC( 11- iel a tY€ncl�u. S z s ` `i �° v 5 of. w;+h reserve 1 C 111 below. C ;v r wo y ° i ®{>,rd e. -�otn i ® \ -E.,.. v- t.:c..k..._ Kev: -s 0Audio-Visual Alarm b 02 Cleanout 33 NuWater BNR-500 ATU Tank 01,000 Gallon Pump Chamber \ 2 8 R. 05 Valve Control Box _______,,c.c.;;.:9_ 4 S l{tvt WA-Kr+;vv• if ehcoQp+rrtd o, E xi Sti V1 C{ tarn k to be 6_0 ,�1) ' c - - $) decorr;sSiovteci or removed. 31.33 '� �� .XiS-11V'5 train dd -}-o F LaKeShort Dr E b{ abandovu, d. PPROVE ,, MAR 2 8 2023 MASONO NTy -.44,� �` ENviRoni ''``> ` O Jew MENTAL HEALTH • 5� ,K ` \ Zs- ,>4 ik I c_.Ls 9+ �' o.c.iL NIP' k _________ 1,2..S‘t am. s 21 t1e***Jcell‘' I ° l'." . . / Fe • a -•- • • V a _ It f 0 .S-EA-Az_ = t "_ (0' 1 1 c o S ip IS Z£ Detailed Drainfield LayoutTypical Observation Pon •`.J Sods I. • t0' e+d Grade c 10' ' 20 q"to t 2 • Flier Fabric FllGrade i • p 0 V E . 2-1/2 off— 1225• Lateral 13 " MAR 2 8 „.., ...., MASON_ _ 6. COUNTY EN //RON o2� MENTAL NFp• �TN Reds - / J B W / 11 36" • Screw-On Up 14"+ • 45 Depress Ebbw Latard Restrictive Layer -- End o� —"" t)_ - peon an Drainfield • Cross-Section View Not To Seale Notes Cie iout to be from 0 to 6 n les below Fris?ted Grade. Mork ends with Reba.: Own Out Note 0 ' Observation Part Remixed at the End of Fad+ LaWd. To Be 4' PVC Pips from Bottom of Trench To Fe+isF+ed Grads. Removabie Gap mhos be c • installed an Observation Port �'� Arrow Septic Designs hf Bottom with Giusd-Re Tee pt.e`o y°, �-,^ (3 6 0) 8 9 8- 2 2 5 5 ��, of. cf Told Rsa�red in System n ��r o 9r�� '7� PAULA JOY JOHNSON fe1 ���w±RE9 i 57- �� v Length Length Orifice # Distance from Distance from Lateral# (In.) (Ft.) Spacing Orifices Feeder Line (In.) Cleanout(In.) 1 420 35 60 7 30 30 2 420 35 60 7 30 30 3 420 35 60 7 30 30 4 420 35 60 7 30 30 Total Lateral Length 140 • Total#Orifices 28 GPM = 16.52 Dynamic Head Calculations Selected residual pressure: 2 ft. Length (Ft.) #Orifices Transport Pipe 40 28 0.21 ft. Feeder Total Lateral Line Length Lateral#1 35 2 37 7 0.11 ft. Lateral#2 35 7 42 7 0.12 ft. Lateral#3 35 12 47 7 0.13 ft. Lateral#4 35 17 PP RO .15 ft. Total Elevation Lift AMAR 2 8 2023 .00 ft. Total Dynamic Head JASONCOUNTY ENVIRONMENTAL HEALT19.71 ft. • • JBW SECURED THREADEDwet* LID GAS TIGHTS AL - ACCESS RISER , SERVICE _ VALVE FIRM emoe j1 itr--- , L ORA • Iqe .TANK t II - S• TORAGE I ANTI SIPHON HIGH WATER ALARM LEVEL ----ii-.._i __ doetr TgAeR Off LEVEL. VTOR1CilIG VOLE I FOR FLOW FLOAT _# O T STEM NORMAL ' � CHECK VALVE' fire.Z. ---�--� _ _ _ - •4() 18" f- s of vAeHuseggesiaLE � .�'• _ PUMP aleigiga • • : ( to .. c.L, ,AS NEEDED _,.;J PAULA JOY JOHNSON ..5. K; ucrs>`.uI�SiGiuta ' WAC chapter 246-272C �d FIGURE 2.. ih. '_ - - dards required by Septic T� '� On Dept of Health list of registered sewage tanks' manufacturer must be page 35 of 65 11118 • • 137, 139, 14ff � . ' 151, 15 Flow-Mate Dose-Mate Of equsuale'A* . In high head dewatering or effluent This is our fastest growing line of effluent y applications where pumping pumps.The 15 0 series is truly a workhorse i performance is critical, this robust designed for reliability under extreme family of pumps is known for reliability, conditions in an effluent environment.15 0 durability and performance. These series pump curves cover a wide range pumps are especially suited for harsh of applications. They are well suited to 1 environments.Zoeller's cool run design applications with low pressure pipe (LPP) and corrosion-resistant,powder coated and enhanced flow STEP systems.Zoeller's 3 epoxy finish add up to a long-lasting, cool run design and corrosion-resistant, trouble-free product powder coated epoxy finish,in addition to I— the hermetically sealed,oil-filled motorand Z non-clogging vortex impeller add up to a = W long-lasting,trouble free product �,e J t I MADE INTNE u8A �? LLe0. 1__--..,vnraacm�os,n I� INTHE 999091,OF E USA I W an CL APPLICATIONS: APPLICATIONS: 2 • STEP or onsite applications • STEP or onsite applications 2 • Water transfer • Light commercial dewatering LIJ • Light commercial dewatering SPECIFICATIONS: SPECIFICATIONS: • 1-1/2"NPT discharge • 1-1/2"NPT discharge • 3/10 HP through 1/2 HP • 1/2 HP through 1 HP • Available in nonautomatic or with a variable level Available in automatic or nonautomatic piggyback mechanical switch • Model 137,139,140:1/2"(12 mm)spherical solids • 1/2"(12 mm)spherical solids capacity with vortex capacity with vortex impeller thermoplastic impeller • Model 145:3/4"(19 mm)spherical solids capacity with For more information,see Technical Data Sheet FM2784. vortex impeller • 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. w W w PUMP PERFO- 4ANCE CURVE ii PUMP PERFORMANCE CURVE MODE �152/153 MODEL 137/140545 50 Ors " 7 .......IIII. 14r 45 153 60 �..11111..r:.•r ,� ■,■■■■■'rf.`r,.'r p R 0 12 ,..,e. „ x ■■►\�� [r !t/11i AR 2 8 202 °',.:.. ,. . ,'.■.■U11d. 2 ` :. 151 b mia ����.m.r'dTY ENV)RONh1E .- x ■.■.,■■■.■ ~ 6 20 a e 1.1...,,,.... 4 15 ■\•.■.,■■■ 10 ,. ■■■■■iw uu 2 5 1 e ■■.■■,I■',■ 0 ■■■■■®■■111® 10 20 30 40 50 60 70 80 90 100 GALLONS ' LITERS 0 40 80 120 160 200 240 280 320 360 4\ld5 :m•s, n ,p , :.- FLOW PER MINUTE ota508 0.0nnEA YNJrt '52655 8 0 ALL rights reserved. ZOELLER PUMP CO. 1502-778-2731 1800-928-7867 I zoellerpumps.com f -- — 9'"2" DUAL PORT AERATOR-, WATERTIGHT LID VENT(ty0) RISERS(TYP) �I+ I 1 • • 1-PVC(TYP) ° ...PVC MASTIC / / AIRLINE 4 r a T - )., -i.' --km T r COUPLING�\ I _,_ ( ' &REDUCER 6• I - C 2'TEE 1-PVC SLUDGE I I 1 1T RETURN LINE E r PVC -f -, 1 ——T TRASH CHAMBER DIGESTER CHAMBER CLARIFIER I i OPERATING CAPACnY:4t7GALLONS I OPERATING CACITY:4:42t GALLONS CHAMBER FLOOD CAPACITY:490 GALLONS FLOOD CAPACITY:494 GALLONS 160 GALLONS FLOOD:191 GAL., 65" 58- 50' , EJ i ° ° ° 1'X1I2' I ° ° TEE 0 ROVE .:P ° MAR 18 �023 ••• 12• MASON/(�(���{ --DIFFUSER BARS(2) ' "LINTY • PARALEL TO TANK WALL q• y ENVIRONMENTAL Hill ,� v 'J. N. • ' 3- JOW SLUDGE RETURN \ h // t.STAPER -714 SIDE VIEW 1•=1.42 STONE-FREE NATIVE SOIL OR COMPACTED SAND OVER STONY SOIL INSTALLATION INSTRUCTIONS 1)Excavate tank hole with vertical walls to 1 foot larger than tank on all sides. g 2. 2)If bottom of hole is stony,install 3"of compact sand&level Out with screed. -- -1 3)Install tank in center of hole,keeping 1 ft.void space on 1 all sides. I 24'RISERS ) ' 24 BLOWER I 4)As tank is filling with water,fill in void space with compact (HOUSING CAS i 1 Ir \ p OP OFLIgranular(sandy)soil free of large dumps of day. \ \\ I ; 5)Install rest of system,&affix risers to adapters with I I 3 waterproof adhesive. [ I I 1 I 4'-8. 6)Perform watertightness test in field as required by local jurisdiction. I I 12 RISER I 7)Upon approval to backfill,carefully backfill with native I l I soils over top of tank. I TRASH CHAMBER I prGESTER 11=SEEM 8)Final grade the surface to avoid chaneiling surface L _L _I L__ water toward tank. TOP VIEW 1•=282 :: .: o„n AEROBIC TREATMENT TANK DETAIL FOR M p3 ` N NuWATER BNR-500 TREATMENT UNIT ligg " ENVIRO-FLO, INC. REVISED: 3/01/12 ��. Wastewater Treatment Technologies '":' P.O.BOX 321161,Flowood,MS 39232 (877)836-8476 (601)845-4716 fax 1„ = 1.4 ft. =-- www.enviro-flo.net ;). ! 3LJW+Y+�Lçf I �♦' 111 I °L� 11 .,_....... ° 4,1 �'\ e7 i 0,_A rI ` �\ �� [fir �y ,� t vt. ,c:::..c ..,,I ,...,:ifp, p. a L„-'.1"---- -......-0,p --... , is LO , c - *• sTj /1/41) .‘1 :122 c• o 4 a; r. I 4 t t Till 410 • / i r ID ,oei* . •f 4_► [1 ili PARTS LIST NuWater NR Assembly Diagram V I A.DUAL PORT AERATOR M.POLY DIFFUSER BAR(2) H 4 7 B.3/8"RUBBER 90°Wi CLAMPS j2) N.1"PVC(3 1/7 SECTION) Ill C.3/8"BARBED ADAPTOR X 1/7 NPT(2) O.1"SUP CAP (p O.1/2'SLIP X 1/2"NPT ADAPTOR P. 1/8"CLEAR PVC HOSE(OPTIONAL 5) A E.1"STREET X 1/2"NPT BUSHING(3) Q.1/2'PVC?IPE(BY INSTALLER) 111 F.i12 90'ELBOW(3) R.i"PVC PIPE(BY INSTALLER) G.1'X 1"X 1/2'TEE S.2"PVC PIPE(BY INSTALLER) `© *~ H.1"90°ELBOW(3) T.1/8"BARBED ADAPTOR TO 1/4"NPT(2) i.zX i'BUSHING p p R 0 V 1/2"STREET X 1/4"NPT BUSHING(2) `,yam J 2"SANITARY TEE E ^'.!7t; PVC COUPLER(2) K.1"PVC CROSS • a COUPLER(BY INSTALLER; L 1"COUPLER(BY I MAR 2 8 2023 a, ' �' MASON COUNTY ENVIRO�IMENTAI NFdI Ty Revised 2/25/12 JBW golt0 • a vtaw Septic Doigivs A NuWater BNR Pretreatment . i INSTALLATION & MAINTENANCE ,► • `-'1, . Pressure Distribution Systems �i '' ' / .03•-' PAULA JJY JOHNSON A LtE`t�i� 1� �iGti t 1. Install Laterals with contour of the ground. T EXPIRES 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. toEt- iD