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HomeMy WebLinkAboutSWG2025-00437 - SWG Application / Design - 11/4/2025 ak MASON COUNTY 415 N 6TH STREET,SHELTON,WA 98584 SHELTON:360-427-9670,EXT 400 BELFAIIR:360-275-4467,EXT 400 , , Public Health & Human Services ELMA:360-482-5269,EXT 400 FAX:360-427-7787 On-Site Sewage System Permit: SWG2025-00437 APPLICANT UPTON JOE & DIANE Phone: Address: 5220 JOHNSON POINT RD NE OLYMPIA, WA 98516 OWNER UPTON JOE & DIANE Phone: Address: 5220 JOHNSON POINT RD NE OLYMPIA, WA 98516 SEPTIC DESIGNER PAULA JOHNSON* Phone: 360-898-2255 Address: 171 E VUECREST DRIVE UNION. WA 98592 SEPTIC INSTALLER SHANE MAPLES* Phone: 360-463-8474 Address: 911 SE Arcadia Road SHELTON, WA 98584 Site Address: 151 N Susan Ave Primary Parcel Number: 422015001009 Permit Description: Repair: SFR 2-bedroom pressure system with trench drainfield and a partial reserve drainfield (100 ft2) Permit Submitted Date: 11/04/2025 Permit Issued Date: 11/12/2025 Issued By: David Anderson Current Permit Fees Paid: $825.00 (additional fees may be required upon installation of system). Permit Expiration Date: 11/10/2026 (based on date of inspection) Permit Conditions: 1 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 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. 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 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 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. • OFFICIAL USE ONLY Ms.,: N COUNTY DATE RECEIVED: 10 y/ � :5 o) C CP M A S O AMOUNT RECEIVE RECEIVED BY: W m f Public Health & Human Services t �' j II¢pipocr 4-Q v m Environmental Health 360-427-9670,ext.400 or 360-275-4467,ext.400 2 !_ �^ �_ 415 N.6th Street-Shelton,WA 98584 SWG 2/ 5 U ! o z to ON-SITE SEWAGE SYSTEM APPLICATION z 73 > m n m =Ho = 7 A??L ICANT Joe Upton (360)790-0520 = c o g MAiUNG ADDRESS-STREET.CITY.STATE,ZIP CODE 5220 Johnson Point Rd NE ...&‘‘ Olympia WA 98516 SITE ADDRESS-STREET,CITY.Z:P CODE oodsport WA 98548 151 N Susan Ave /� r\.. p I lCD NAME OF DESIGNER (t i.) ��, ?HOVE 9. I N Arrow Septic Designs, In• \\v' AJ (360) 898-2255 NAME OF INSTALLER 1\� 1 �U / PHONE I N 360 463-8474 Maples Excavating \ r.:: , ( ) N I o • `� DRINKING WATER SOURCE Q PERMIT TYPE(select one) \� RC RESIDENTIAL OSS COMMUNITY OSS Er CbltiLlft LOSS 5-i PRIVATE INDIVIDUAL WELL 6:PRIVATE TWO-PARTY WELL Z I 7 PUBLIC WATER SYSTEM TYPE OF WORK(select one) 6NEW CONSTRUCTION/UPGRADES laiREPAIR I REPLACEMENT OTHER DETAILS(sel rallthatapply) 0 TABLE X REPAIR I cn SUBMITTALS CISURFACING SEWAGE Iil EXISTING FAILURE 0 SHORELINE ca pp O I o fiEDESIGN FORM(REQUIRED) SEPTIC DESIGN(REQUIRED) BEDROOMS LOT SIZE WAS LOT CREATED AFTER 4/12o25/EWAIVER(S)(IF APPLICABLE) 2 BR .10 ac ElYES 0 n NO 0 I I DIRECTIONS TO SITE AND SITE CONDITIONS.(ex.locked gate) Go out US-101 N toward Hoodsport. Turn (L) onto N Susan Ave. White house on (L) with I address "151" o I o Co I0 SITE MUST BE FLAGGED FROM MAIN ROAD AND TEST HOLES MUST BE FLAGGED WITH TEST HOLE NUMBERS. I CO OFFICIAL USE ONLY BELOW THIS LINE UPGRADE I FAILURE SOURCE(for reporting purposes) ❑VOLUNTARY 0 MAINTENANCE/PUMPING ❑BUILDING PERMIT ❑HOME SALE ['COMPLAINT ❑OTHER: INSPECTOR SOIL LOGS COMMENTS I CONDITIONS T1fV:O- 9" L. ( )Per`i) I 39- c 3 E(,045 e 1) to botbm. t0- 44 `' C CT od V Ma( LH- `L' ti.t t- 12017619 = RECORD DRAWING AND INSTALLATION REPORT SOIL CODES: REQUIRED FOR FINAL APPROVAL. V=VERY G=GRAVELLY S=SAND L=LOAM Si=SILT Cr CLAY E=EXTREMELY R=ROOTS INSPECTOR SIGNATURE c DATE APPLICATION EXPIRATION DATE APPLICA ON APPROVED/ISSUED BY DATE /1_,,...'"--- q 11 ?o l j /e1776 ///(2/ 25 ITHIS 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: 4 2 2 0 1 — 5 0 — 0 1 0 0 9 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"X 17" PARCEL IDENTIFICATION Permit Number: SWG -Da� ' 0�Q� Designer's Name: Arrow Septic Designs, Inc n J Joe Upton Designer's Phone Number: (360)898-2255 Applicant's Name: Mailing Address: 171 E Vuecrest Dr 5220 Johnson Point Rd NE Designer's Address: Union, WA 98592 Olympia WA 98516 City State Zip Ci State Zip Designer's Email paulaj@hctc.com DESIGN PARAMETERS Treatment Device ❑ Glendon Cl Sand Filter 0 Mound 0 Sand Lined Drainfield 0 Recirculating Filter 0 ATU ii Other Treatment Level(check all that apply): ❑A ❑B ❑C ❑BL1 C BL2 ❑BL3 1 E Li N Drainfield Type 0 Gravity BSPressure Et 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 33.5 ft Daily Flow: Design Flow 240 gpd Diameter 1.25 in Septic Tank Capacity(working) 1,000 - 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 402 ft2 Diameter 3/16 in Designed Reserve Area 100 ft2 Spacing 60 in Trench/Bed Width 3 / ft Manifold Trench/Bed Length 134 ft Schedule/Class 40 Elevation Measurements , Length header ft Original Drainfield Area Slope 1 % Diameter 1.25 in New Slope,If Altered 1 % Preferred manifold configuration used? l 'Yes 0 No Depth of Excavation lip-slope 14 in Transport Pipe , from Original Grade Down-slope 14 in Schedule/Class 40 Designed Vertical Separation 25* 4' in Length 35 ft Gravel-based Drainfield Required? 0 Yes le No Diameter 2 in Pump Required? stfYes 0 No Dosing and Pump Chamber Pump/Siphon Specifications Number of doses/day 4 Diff.in Elevation Between Pump&Uppermost Orifice 8 ft Dose quantity 60 gal Drainfield Squirt Height/Selected Residual(head) 2 ft Chamber Capacity(flood) 1,000 , gal Uppermost Orifice eHigher 0 Lower than Pump Shutoff Pump controls:Please check those required. Capacity @ Total Pressure Head 16.52 gpm Et Timer 0 Elapse Meter ❑event Counter ft Calculated Total Pressure Head 10.67 If Timer: Pump on 2 minutes ,Pump off 6 hours Comments Revised:4/14/2025 fr DESIGN FORM—PAGE TWO Assessor's Parcel Number:4 2 2 0 1 — 5 0 -- 0 1 0 0 9 Permit Number: SWG DESIGN CHECKLISTS Scaled Plot Plan Scaled Layout Sketch Cross-Section Sketch Et Test hole locations lig Drainfield orientation and layout Reference depth from original grade: RI Soil logs lil Trench/bed dimensions and Eg Septic tank Property lines critical distances within layout RI Drainfield cover lili ❑ Existing and proposed wells D-Box/Valve box locations Reference depth from original grade within 100 ft of property Eg Septic tank/pump chamber and restrictive strata: ❑ Measurements to cuts, banks,and locations ' Laterals,trench/bed,top and surface water and critical areas Ii6 Observation port location bottom ❑ Location and orientation of fig Clean-out location 0 Curtain drain collector curtain drain and all absorption Ig Manifold placement 0 Sand augmentation components Eg Orifice placement Other cross-section detail: Eg Location and dimension of lig Lateral placement with distance lifObservation ports/clean-outs primary system and reserve area to edge of bed Other Information WI Buildings Iii Audible/visual alarm referenced Yes No Direction of slope indicator It Scale of drawing shown on scale El 0 Design staked out 0 Waterlines bar 0 I1'Recorded Notices attached Ft Roads, easements, driveways, p Elevation benchmark and relative 0 g Waiver(s)attached parking elevations of system components lif 0 Pump curve attached 0 North arrow and scale drawing 56 0 Evaluation of failure shown on scale bar .5 Non-residential justification 0 [i Waste strength 0 g Flow D 4 . OVAL � '. 't The undersigned designer must be notified e e tallation It Yes 0 No r Signatu b ijlIKSj Nf_f't • t} Date ExAVs T •7"-S 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 re lations: it // 277o7S ,. ;© Nol12 Enviro ental Health Specialist D �C(/N 2025 CAUTION: DESIGN APPROVAL IS VALID ONLY UNDER THE FOLLOWING CONmi..IOft:G( f,r, ✓ The design is stamped"Approved"by Mason County Public Health. ✓ /(O nl 2‘The Onsite Sewage Permit has not expired,the Permit Expiration Date is: / �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 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 Arrow Septic Designs 171 E.Vuecrest Dr. Union,WA 98592 November 3,2025 Mason County Department of Health Services 415N6thSt Shelton,WA 98584 RE: Joe Upton Property(Parcel#42201-50-01009)Evaluation of Failure&Upgrade Dear Inspector: Attached is a septic tank permit for a property located at 151 N Susan Ave,Hoodsport,WA 98548. The existing 2-bedroom septic system was installed with a permit in 1958. It was originally a 500-gallon septic tank followed by a seepage pit. The tank was replaced with a permit in 1992,changed to a 1,200- gallon 2-compartment tank. The existing septic was recently inspected for a home sale.The reports state"During the stress test, effluent immediately returned to the tank."They found an"accumulation of sludge and root intrusion was observed in the outlet pipe.The technician was unable to locate the seepage pit. The outlet pipe appears to be headed under the house. Attempted to enter the crawl space but was unable to fit. Unable to verify the condition or location of the seepage pit. Per the as-built the seepage pit is located under the house." There are indicators that the liquid level in the tank has been inconsistent and could be leaking. The old tank is to be decommissioned or removed and the old drainfield is to be abandoned. If the installer can locate the seepage pit, it should also be decommissioned. Proposed is a new 1,000-gallon 2-compartment septic tank with effluent filter,a 1,000 gallon pump chamber and 134 lineal feet(400 s.f.)of shallow pressure trenches. This lot is extremely small so we were only able to show 100 lineal feet of reserve drainfield area. All septic components are over 100' from surface water and there are no known wells nearby. The property owner's contact information is as follows: A P P R®\ �E Joe Upton 5220 Johnson Point Rd NE NOV Z Olympia,WA 98516 2025 Phone: (360) 790-0520 MASON COUNTY ENVIRONMENTAL Y HEALTH If you need further information,please contact my office at(360) 898-2255. DJA Sincerely, - i � • a J. Jo :'_ ., "l�lr Treatment System Designer EXPWES t .3-ZS • It 14 t 'I k ) I' f ; d. i{ I °\ II g Ilifil . •I I . `t r] it! I W lip!! I yitt e4 it w:i C 2 , M Ih =i H z ti:` t i j �1 , tta { y i i t J D 4,. t t• Ltt i4! it 11%t 3 ;k. $[ 3 1 lei fie t i i , ..it. i t = ��,� f/' 00 i CO O. • . °"1,,,, / '' -'-1;' % NR. . k� q ' 0N , p : - __ ems - _ / a .,1 . 4...444Ntr. — e . 0 J ` • f .d ^ 1,` �^y. # • 4\4k ., ` 0\Itiff.r. -,,,Ntai.,.,. ..4;110,74. ..1.4(1\,t_.:11*; ;4.. . 40010.1%.., ii0V..:..i. ir 4\. e *. 1 # . , ‘ #:'• F , ' t III d 3 � r $ 'J w .a 1�i Z .v t' .rK% \ • - ----'"g—iflarrw,.w .rr:+2 .� i AP t_....=, 1,_,‘ s. (-) sib;.,...* C`; , NOV 12 2025 "•'FNTAL HEALTH c9"(—q � ' I\CA-zszAc- Leot - - N S\55At,1 SSE : " = zo ' P :E.. _ _ _ T1 j4‘jr 0 to 20 30 40 I "'AY J 0€ 0 P`\--o1\1 N ___®.? pARcit 4/Zol—So—p1009 T E XtSTiNCs \ I N O5ftc E. 2 2 ESP. 0D,5 c�� S lZA ci e5 ig e.�, • 0 ® C 1 0 37' O • ___V t : 0-301 4 Lo R -k -v c---0-0-75 -5 01-La-1 '' i 41 RSA oN) C,5L1GkT Nt ,, �, .�Q c9o-i S 42-�o 2 : p- y 2 L ofµ D�r�P .e�,.�. . s i L` - z o A ) S I G H -t-`j 3'd' Au.,e.- &..r C4) 3' X � 5 ' ?R.`6`�.�2-' D. F. 0 Audio-Visual Alarm -7(2-�c i i C Ff S S ' 0 • [ . t.J 1-1-1-1 3 Cleanout tou ' L OF REST= CF ENc -tES 0 l d00 C•atlon Septic Tank 2-Compartment with Effluent Filter 0, 11 O 1000 Gallon Pump Chamber To 1i{� 1, 0 Valve Control Box Ifi;fillilir `l © 0 1 d -1-a•.J4- •4-o toe. = �. s,cYJ O 6eep aj P,i - 1 b ca4--;o%. Q, PAULAJOYJOHNSON 1 . srtsti ►cava ,,,.y—_.,WV, - 40 bQ akla.,de,.,e), It - -LS' U. ter,, NOV 12 2025 ^n'I''TY ENVIRONMENTAL HEALTH " „1 n_p- p 81ear` `,z ctt �a v ore.rt-, `ems` �� C.��'' N1 - • 6—siiiiin l ! zs`` Feat t—.,as • • .13.Ce:15e'kAjeli'%Ni" >4WINm... -----114111111111.111.1.111111111111111.11111.111111.11111111. ..111111111.11111111111111111111"11111111111 O • S !0 1S 2-c Detailed Drainfield Layout Typical Observation ScdC t• - 16 . 6-KAD E • 0 1 ,eng Loon • Filar Fabric 4 / (i IQt G i n1 R L (r(�ROE Carer i Fi• ROVIJ j 3/4• :0 2 a 25• Lateral 1 't 1 • 2.1.2• . MASONNOV 2 2025 ora+ — s --1— �OLiNTY E NV IRONMENTAI HEALT aea� -�— . • Screw-On Gc v 'J A H 2 5 1k 45 pare a Elbow Laturai Restrictive toyer End of Wen Drainfield \ Cross-section View tt Deaf - cmon Out Net To Scale Note Gletanout to be from 0 to 6 neva tabor Fcttshed GroOo• ►Mork ends '�+ Robs: Owl Out Now 0 Obs pat tytr Req.i* at tAe End of each Lateral 'To'Be 4' PVC � from Bottom of Trench "```((((( � t• � � be Designs t Instated on . .44 Arrow Septic c. Sonora Mrimmt of 4 Total Ted n S ,� r;•, C380) 898- 2255 Vic. s, ,),a� . id: PAULA JOY JOHNSON •' �, kE,,,,....„.„-t.s_TisKot.E.T.,:_ II-3-LS Length Length Orifice # Distance from Distance from Lateral# (In.) (Ft.) Spacing Orifices Feeder Line (In.) Cleanout(In.) 1 402 33.5 60 7 21 21 2 402 33.5 60 7 21 21 3 402 33.5 60 7 21 21 4 402 33.5 60 7 21 21 Total Lateral Length 134 Total#Orifices 28 GPM= 16.52 Dynamic Head Calculations Selected residual pressure: 2 ft. Length (Ft.) #Orifices Transport Pipe 35 28 0.18 ft. Feeder Total Lateral Line Length Lateral#1 33.5 2 35.5 7 0.10 ft. Lateral#2 33.5 7 40.5 7 0.12 ft. Lateral#3 33.5 12 45.5 7 0.13 ft. Lateral#4 33.5 17 50.5 7 0.14 ft. Total Elevation Lift 8.00 ft. Total Dynamic Head 5.1kt 10.67 ft. AS:?..4,;b) tot, 0 iii,A.6.;;0„..i.t-. . � . ,1}' 510034g y;Q<' PAULA JOY JOHNSON .Tl gm 4S t�25 iGNDa'cc b _ r;>,o I t-3-is NOR , . St. LID MqS°NCOUN iv EN 2 2025 DJq�MFNTg0 /p4L TH b Fity 9 "�� 137, 139, l 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 - - v - PUMP PERFORMANCE CURVE M OC£L 137f140'145 family of pumps is known for reliability, durability and performance. These _ r , ��.�.1.���� pumps are especially suited for harsh _ ,0��������environments.Zoeller's cool run design 01,. t x ■,lIMIIIIIIIIII U1 and corrosion-resistant,powder coated ;. ■,■■■■�■.� c epoxy finish add up to a long-lasting, . 3 ■■„■■■■■u trouble-free product. 71 1 : \\�������� m APPLICATIONS: E.,,ll11111.11111 'n • STEP or onsite applications .■. ■� ■���� C • Water transfer „ > ■■■■,■■■111. m • Light commercial dewatering ` • n .■.■,,,■■■■ z SPECIFICATIONS: Or y r :::::;EM • 1-1/2"NPT discharge �,,,/� '� • Available1/2 HP through 1 HP MADE IONNfTHE USh ■■■■■,,.'� • in automatic or nonautomatic ■■■■■���® • Model 137,139,140:1/2"(12 mm)spherical solids a capacity with vortex impeller >o t •' 10 c 1< g : m • Model 145:3/4"(19 mm)spherical solids capacity with "°'=a 10 40 10 to R ON�IW1 152•.`:b vortex impeller 151 152 �z 1 t ,E W PUMP PERFORMANCE CURVE T MODEL 1511152/153 Dose-Mate 50 II I This is our fastest growing line of effluent 14- u 153 1 pumps.The 150 series is truly a workhorse designed for reliability under extreme 12- 40 conditions in an effluent environment. 150 series pump curves cover a wide range = io- 35 152 of applications. They are well suited to 2 30 applications with low pressure pipe(LPP) e_ 2 ,s1 and enhanced flow STEP systems.Zoeller's cool run design and corrosion-resistant, o 6_ 20 powder coated epoxy finish, in addition to the hermetically sealed, oil-filled motor 15 and non-clogging vortex impeller add up to 4- a long-lasting,trouble-free product. 10 V �1 2- APPLICATIONS: 5 • STEP or onsite applications ' MADE IN 0 10 20 30 40 50 60 70 80 90 100 • Light commercial dewatering NSII6A MAIM lifl1E ttNE GALLONS LITERS o 410 80 120 160 200 240 280 320 360 • 1-1/2"NPT discharge s, SPECIFICATIONS: ?O� -FLONJPERMINUTE 0r:5C8 • 3/10 HP through 1/2 HP 2 ; • Available in nonautomatic or with a variable level piggyback mechanical switch NOV• 1/2"(12 mm)spherical solids capacity with vortex �gSON /Y /2 2025 thermoplastic impeller C For more information,see Technical Data Sheet FM2784. Ot/iii ✓ ©All rights reserved. ZOELLER PUMP CO. 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":1=WWI o• --...--. !'a --s'-'7' i i i NORMAL 72XSZ OW LEVE. i '40tilitig-'el-qat i 4.--'''''"tr• -'4=.;= DIDOSINDOIT i f - ; i' • 1 ! aiff-ASED AMP ' -• 2 .....; • : -.....d..... 1 MUM= , g ; I s f 6--.2; .^-• , —• i t • 1 r ---==• i: '"" i t 1 I .-=,_ f .-'7 . i .—.... = .1 1 , MiiintaiffingLE - 1 I - , . i CENTRZFUGAL. :I -I PUMP PE-1*EO E •2_21,3015:it , f rTYPT.C41.-3 •I • i i AS itcii, i 4 z z • . . 1 __ _ i • •'- .--i-tr.r-n..-.,24..=-2 -2e- • .p. ,-----': Sep-1c Tanks r.nu_st.meet amricarr,..5 reci. .; ny W/ica..,...=-2.,—• --. ..' r&6 LIRE 2 1 ' .St. ,'t--''=Dee e-;.--ti,list c.,:f rez_:ctere.c.i ' and rriallis.7.7i. =• : ...-e O.: -.- . _ . .. .., • . • ! 2: - : 1 . 1 — • I _ 4 444, G64010 Septic Deisign4, 3'fZC. a . .16; �;► INSTALLATION & MAINTENANCE Pressure Distribution Systems �-� 5100348 • PAULA JOY JOHNSON...T. 1. Install Laterals with contour of the ground. �` b i NEN*" 2. Install trench bottoms level. " ' i 'a 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. 8. Install 1/8"mesh non-corrosive pump screen(min. 12 sq. ft. surface area,not to interfere with controls or floats.) Or pump screen may be substituted with Bio-Tube in septic tank and block under pump. Pull bio-tube every 6-12 months and flush back into tank. 9. Install anti-siphon valve above pump in pump chamber to prevent the pump chamber from siphoning into the drainfield. 10. Install check valve in pump outlet line to prevent system from draining back into the pump chamber. 11. 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. 12. 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. 13. 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. 14. Divert all storm water runoff away from on-site sewage system. 15.No curtain drains allowed within 10' of the up-slope edge or 30' of the down-slope edge of the drainfield and reserve area. 16. Have the septic tank and pump chamber pumped or inspected every 3 years minimum. 17. No vehicular traffic over drainfield area or tanks. 18. Inspect floats, clean filters, and test high water level alarm every 6-12 months as needed. 19. All materials and workmanship must meet County and State regulations. 20. Deviation from this design without prior approval from the Designer and Mason County Environmental Health Department will make this design null and void. 21. All manhole lids and access, sampling or inspection ports must have locking covers and be located at ground level. 22. 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. 23. All transport lines under driveways or parking areas must be encased to prevent crushing. 24. Homeowner is responsible for all property lines and easements. ci 9