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HomeMy WebLinkAboutSWG2023-00085 - SWG Application / Design - 3/13/2023 MASON COUNTY 415 N 6TH STREET,SHELTON,WA 98584 SHELTON:360-427-9670,EXT 400 BELFAIR:360-275-4467,EXT 400 p � Public Health & Human Services ELMA: 360-482-5269,EXT 400 FAX:360-427-7787 On-Site Sewage System Permit: SWG2023-00085 APPLICANT ROBISON BOB & PATTY ANN ETAL Phone: Address: JOHN & TERESA GALLIGAN PORT ORCHARD, WA 98366 OWNER ROBISON BOB & PATTY ANN ETAL Phone: Address: JOHN & TERESA GALLIGAN PORT ORCHARD, WA 98366 SEPTIC DESIGNER ARROW LAND CLEARING & SEPTIC Phone: 1.360.898.4388 Address: P 0 BOX 94 UNION, WA 98592 Site Address: 2081 E Crestview Dr Primary Parcel Number: 320215803044 Permit Description: 3-bedroom pressure system repair Permit Submitted Date: 03/13/2023 Permit Issued Date: 03/15/2023 Issued By: David Anderson Current Permit Fees Paid: $525.00 (additional fees may be required upon installation of system). Permit Expiration Date: 03/15/2026 (based on date of inspection) Permit Conditions: 1 Proposed development subject to zoning requirements and approval by the planning department staff per Mason County Title 17. 2 Permit must be installed by a Mason County Certified Installer unless prior written authorization from Mason County is obtained. 3 Drainfield installation not to exceed designed upslope and downslope depth specified on design form. 4 Installer is responsible for obtaining Mason County installation approval prior to backfill of system components. 5 Installer is responsible for obtaining Septic Designer/Engineer installation approval prior to backfill of system components. 6 Mason County Asbuilt Form, Record Drawing, and Installation fee must be submitted for final installation approval. THIS PERMIT MUST BE ONSITE DURING INSTALLATION OF OSS. PROPERTY OWNERS ARE RESPONSIBLE FOR DETERMINING AND MARKING ALL PROPERTY LINE AND EASEMENT LOCATIONS. THIS PERMIT MAY BE REVOKED IF THE SITE CONDITIONS HAVE CHANGED SINCE THE SITE WAS INSPECTED AND DESIGN APPROVED. FINAL INSTALLATION APPROVAL IS REQUIRED PRIOR TO TEMPORARY OR FINAL OCCUPANCY OF ANY RELATED STRUCTURES. For Final Inspection visit: masoncountywa.gov/health/environmental/onsiteloss-inspection-request.php or call: 360-427-9670, extension 400. OFFICIAL USE ONLY DATE RECEIVED: I MASON COUNTY J Mir- COMMUNITY SERVICES AMOUNT RECE RECEIVED BY: COFP . . . Public Health(Community Heath/Environmental Health) 1 415 N.bth SO.tt-n horn.WA9 584 ett 400 SWG c01-R — ( )C O 8 3 `� o �1S N.bth$Sett-SAehon.WA%Set Q Z CJl ON-SITE SEWAGE SYSTEM APPLICATION n XI m n m APPLICANT PHONE S r Bob Robison (360)509-6549 g c MAILING ADDRESS-STREET,CITY,STATE.ZIP CODE C) 3 P.O. Box 323 Port Orchard WA 98366 FD CO SITE ADDRESS-STREET.GIN.ZIP CODE a) 2081 E Crestview Dr 7italnvItr'Shelton WA 98584 w m NAME OF DESIGNER PHONE to I N Arrow Septic Designs ,', 1 3 2 3 (360)898-2255 co L P, NAME OF INSTALLER PHONE 0 CD Maples Excavating BY: (360)463-8474 R I N PERMIT (select TYPE one) CC DR�.NKING WATER SOURCE iR RESIDENTIAL OSS S COMMUNITY OSS COMMERCIAL OSS E PRIVATE INDIVIDUAL WELL b PRIVATE TWO-PARTY WELL Z ,, TYPE OF WORK(select one) 7 PUBLIC WATER SYSTEM) YSTEM I NEW CONSTRUCTION/UPGRADES V REPAIR I REPLACEMENT OTHER DETAILS(select all mat apply) 0 TABLE IX REPAIR CJ1 SUBMITTALS 0 SURFACING SEWAGE RI EXISTING FAILURE 0 SHORELINE In1MIpDESIGN FORM(REQUIRED) SEPTIC DESIGN(REQUIRED) BEDROOMS LOT SIZE 1 CO WAIVERS)(IF APPLICABLE) 3 BR .15 acres o o DIRECTIONS TO SITE AND SITE CONDITIONS ter rocked gate) I W I �!� Go out Hwy 3 and turn right onto E Agate Rd. Turn right onto E Crestview Dr. Destination on (L). Gray manufactured home with white trim. "2081" o o 4 � SITE MUST BE FLAGGED FROM MAIN ROAD AND TEST HOLES MUST BE FLAGGED WITH TEST HOLE NUMBERS. OFFICIAL USE ONLY BELOW THIS LINE -- UPGRADE/FAILURE SOURCE(for reporting purposes) ❑VOLUNTARY ❑MAINTENANCE/PUMPING 0 BUILDING PERMIT 0 HOME SALE ❑COMPLAINT ❑OTHER INSPECTOR SOIL LOGS COMMENTS I CONDITIONS i HI: 6-6o' L m S T1: 0 -56t�it Lai RECORD DRAWING AND INSTALLATION REPORT SOIL CODES: V=VERY G=GRAVELLY S=SAND L=LOAM Si=SILT C=CLAY E=EXTREMELY R=ROOTS REQUIRED FOR FINAL APPROVAL. a INSPECTOR SIGNATURE DATE APPLICATION EXPIRATION DATE APPLICATION APPROVED'ISSUED BY DATE 3/5/e0 ) 23/15/7026 THI FORM MAY BE SCANNED AND AVAILABLE FOR PUBLIC VIEW ON THE MASON COUNTY WEBSITE REVISED 12/72015 DESIGN FORM—PAGE ONE Assessor's Parcel Number: 3 2 0 2 1 — 5 8 — 0 3 0 4 4 A design will be reviewed when 3 copies of each of the following are submitted: '1 Completed design form that has been signed and dated. '' Scaled layout sketch. including all applicable items on checklist 'I Scaled plot plan. including all applicable items on checklist. '1 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 1 PARCEL IDENTIFICATION Permit Number: SWG 202:5-CW8 co Designer's Name: Arrow Septic Designs, Inc (360)898-2255 Bob Robison De •Q L-r's Ph�n• Applicant's Name: E C,!' OTt� 171 E Vuecrest Dr _ Mailing Address: P 0 Box 323 — De '�, A Union WA 98592 Port Orchard WA 98366 i L f' f ,.i_] City State Zip City State Zip �._.. DESIGN P METERS - Treatm'�n Vain ❑Glendon Biofilter ❑Sand Filter 0 Mound 0 Sand Lined Drainfield 0 Recirculating Filter.Type: 0 Aerobic Unit Make/Model 0 Disinfection Unit Make/Model Other:_ -.-- Drainfield Type ❑ Sub Surface Drip Pressure 0 Trench 'Bed 0 Gravity Septic Tank/Drainfield Specifications Laterals Number of Bedrooms 3 Schedule.Class 40 Daily Flow:Operating Capacity 270 g_pd Length 45 ft Daily Flow:Design Flow 360 gpd Diameter 1.25 in Septic Tank Capacity(working) 1,200 gal Number 4 Receiving Soil Type(1-6) 3 Separation 2.5 ft Receiving Soil Appl. Rate 0.8 gpd/ft' Orifices Required Primary Area 450 ft2 Total Number of Orifices 36 Designed Primary Area 450 ft2 Diameter 3/16 in Designed Reserve Area 450 ft2 Spacine 60 in Trench/Bed Width 10 ft Manifold Trench/Bed Length 45 ft Schedule/Class 40 Elevation Measurements Length 7.5 ft Original Drainfield Area Slope 1 % Diameter 1.25 in New Slope. If Altered 1 IN Preferred manifold configuration used? f fYes 0 No Depth of Excavation up-slope 24 in Transport Pipe from Original Grade Down-slope 23 in Schedule-Class 40 Designed Vertical Separation 30+ in Length 25 ft Gravelless Chambers Required? 0 Yes It No 0 Optional Diameter 2 in Pump Required? Et Yes 0 No Dosing and Pump Chamber Pump/Siphon Specifications Number of doses/day,' 4 Diff.in Elevation Between Pump& Uppermost Orifice 5 ft Dose quantity 90 gal Draintield2 Squirt Height/Selected Residual(head) ft Chamber Capacity((Mood) 1,000 gal Pump controls: Please check those required. Uppermost Orifice Higher 0 Lower than Pump Shutoff lit Event Counter Capacity C Total Pressure Head 21.24 gpm 'Timer 'Elapse Meter If 7 8.0 ft Timer: Pump on rillov2 min t f 6 hrs Calculated Total Pressure HeadE Comments AP MAR 1 5 2023 I." Q MASON COUNn ENVIJO MENIAL HMI 1 �` D DESIGN FORM—PAGE TWO Assessor's Parcel Number.: 3 2 0 2 1 — 5 8 -- 0 3 0 4 4 Permit Number: SWG DESIGN CHECKLISTS Scaled Plot Plan Scaled Layout Sketch Cross-Section Sketch Test hole locations 6Z Drainfield orientation and layout Reference depth from original grade: g Soil logs if Trench/bed dimensions and Gi Septic tank WI Property lines critical distances within layout 6f Drainfield cover ❑ Existing and proposed wells g D-Box/Valve box locations Reference depth from original grade within 100 ft of property g Septic tank'pump chamber and restrictive strata: ❑ Measurements to cuts. banks.and locations Cif Laterals, trench/bed,top and surface water and critical areas 12i Observation port location bottom ❑ Location and orientation of 66 Clean-out location 0 Curtain drain collector curtain drain and all absorption g Manifold placement 0 Sand augmentation components g Orifice placement Other cross-section detail: Location and dimension of g Lateral placement with distance g Observation ports/clean-outs primary system and reserve area to edge of be.% WIBuildings n Other Information g Audible/vis a�•t�' . enced Yes No ❑ Direction of slope indicator lit Scale of ng• +4, scale d 0 Design staked out 0 Waterlines bar ': . 0 g Recorded Notices attached 6 Roads, easements. driveways, •+°`• y%IN •Z��. 0 C�Waiver(s)attached parking "{ Cif ❑ Pump curve attached Et North arrow and scale drawing = s,i osny y`\ 0 Evaluation of failure shown on scale bar p� PAUTA JOY JOHNSON• �• •MI gir ,I Non-residential justification 0 111 Waste strength 1 0 g Flow DESIGN APPROVAL The undersigned designer must otified b; insta er at time of installation EtYes 0 No 3-c 3- 2'� Signature of Designer Date APPROVE The undersigned has reviewed this de on behalf of Mason County Public Health and determined it ioree, 3 compliance with state and local on rte r `_ul ' / ] MAR II J [[ , , . - /-514c 1 COUNTY ENVIRONMENTAL 1' '', p E{'ronmental Health Specialist Date fl.l A 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: ✓ 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. V uecrest Dr. Union, WA 98592 March 13,2023 Mason County Department of Health Services 415 N 6th St Shelton,WA 98584 RE: Bob Robison(Parcel #32021-58-03044) Evaluation of Failure Dear Inspector: Attached is a repair septic design for a property located at 2081 E Crestview Dr, Shelton in the Shorecrest neighborhood. There is an existing 3-bedroom manufactured home that ties into a gravity septic system installed in 1967. The existing system has a 1,000-gallon single-compartment septic tank and the old drainfield is installed deep and made up of various materials. At the last pumping, it was found that the drainfield is not taking water the way it should. Upon further investigation, it was discovered that the drainfield is saturated and clogged. The existing 1,000 gallon septic tank is over 50 years old, only single compartment,and installed too shallow to use as a pump chamber so it is to be decommissioned or removed. We are proposing a new 1,200 gallon 2-compartment septic tank with an effluent filter. It will be followed by a new 1,000-gallon pump chamber. The new drainfield consists of 450 s.f. of shallow pressure bed using an application rate of 0.8. The system will also have a control panel including timed dosing,a counter and elapse meter to prevent overuse and facilitate ongoing operation and maintenance. This is a compliant repair with 24"+of vertical separation. There are no surface water or well setback issues. The property owner's contact information is as follows: Bob Robison P.O. Box 323 Port Orchard,WA 98366 (360) 509-6549 If you need further information,please contact my office at(360) 898-2255. Sincerely OPR OVED 11�.�1,. MAR 15 2023 49 ' ' MASON COUNTY ENVIRONMENTA f HEALTH 51W349 ?J 0 PAULA l'Y JCHNr$ON DJA EXPIRES 011 1 Paula J. Johnson Licensed Onsite Wastewater Treatment System Designer 6 1 Q 20 30 4tV W "0 C O. 2�, X4 o ' � ; \ �LOT�2-oL4N . . ...,..= iq \ N.A\ : _O� 2is Sa 7 / l.4 '0316(4t to EtGzESTvFW -2 . Q =Ts 0L dQ0wN/.;SSievied vie ✓e vv•••D J eot a.A^- . old D.F • o@ O o ; d lot X4.5' ?yin•,a.v1 D• • °,d • . B e c1 tv't-k 450 5I. -C.+ �,,,,K a s IC 7I �- L e., ,i.exie.c1 Ffsey e. bed 2 Ito' �'I 1# rA. Z5 ' 1 '?" } Keer. Ito' PeSe.✓,7 t - , -1 ; -- 1. _ 3 5 ' _ _ —I i, `7` 1 0 audio-Visual Alarm - 3 Cleanout '2 1200 Gallon Septic Tank 2-Compartment with Effluent Filter 11-4114.. (t) . 4 1000 Gallon Pump Chamber r `CI MA a •.-; APPROVED r -.•.14. -/%. ,,!.:At Y "�; PAULA JOY JOHNSOM . Ell s;pgrt$•• �� MAR 1 5 2023 EXPIRES 11 BW MASON COUNTY ENVIRONMENTAL REAM: DJA i , 2„ ,,..,,,,,,,sp„,. .i.....„..... • r , ,.._______________„, 30� ______________„. ,;_c,,_ c „..,...,,DI rs ` �� O DRAINFIELD TOP VIEW (4) 1 .25" sched 4P laterals 10 x ri5' pressure bed (9 ) 3/i6" orifices 60" O.C. 30„ from bed ends 5 c9i9.Q,: = t o` r a<ft Of 51 IO IS 20 .4,.. c), �� ...... ,,,,.... ii.,.., , ,_,.., . v...., :.. ,„..... 51^tl349 0 A:., .4 -..-,_, '.tS Y PAULA JOY JOHNSON •. ` , - P a•L:Itti 5 bti8 JOHNSON i• •„` 1 SCREW ON CAP • ExpiRES 0 8r 9 / • - 45 DEGREE ELBOW NOTE. N. LATERAL 3,O"OBSERVATION PORTS--TO BE 4" END OF - oZIOLC PVC PIPE FROM BOTTOM OF TRENCH ,E� TO FINISHED GRADE. REMOVABLE DITCH A� DETAIL CAP SHALL BE INSTALLED ON 30 CLEAN OUT OBSERVATION PORT PIPE. ANCHOR ON BOTTOM WITH GLUED ON TEE: E, CLEANOUT TO BE FROM 0 TC MINIMUM OF 4 IN SYSTEM. APPRQV , i• HES BELOW FINISHED GRADE . ( • . ' - • MARK ENDS WITH REBAR . CLEAN C MAR 1 5 2023 REQUIRED AT END OF EACH LATERA MASON COUNTY ENVIRONMENTAL HEALP OJA r tl' , C`) Y c i G t•Qd•Q arc. F tsvw' 6�c / 7.4.- _Ls c.rlc 24''r ,S..�Of t .0 r`� 30• -1r r 1 36` a /S' _ '144 101 — `gip : i sC- = 2 So"f- f rO i , Z , 3, y,, Zr,t5.,N C -acti v;ei.3 '� � 4 Ofr- 8 Length Length Orifice # Distance from Distance from Lateral# (In.) (Ft.) Spacing Orifices Feeder Line (In.) Cleanout30 (In.) 1 540 45 60 9 30 2 540 45 60 9 30 30 30 30 3 540 45 60 9 30 4 540 45 60 9 30 Total Lateral Length 180 1 mi (Total#Orifices 36 I GPM = 21.24 Dynamic Head Calculations Selected residual pressure: 2 ft. Length (Ft.) #Orifices Transport Pipe 25 36 0.21 ft. Feeder Total Lateral Line Length Lateral#1 45 4 49 9 0.22 ft. Lateral#2 45 2 47 9 0.21 ft. Lateral#3 45 2 47 9 0.21 ft. Lateral#4 45 4 49 9 0.22 ft. Total Elevation Lift 5.00 ft. Total Dynamic Head /NO 8.07 ft. y °' "" `"� o APp 6 ROV 51 iG9 3 MAR 1 5 2023 }' AULA..1.:;" ^,HNSOr.' EXPIRES i SON COUNTY ENVIRONMENTAL HEALT DJA 137, 1 '; - 4151, Flow-Mate Dose-Mate aY etiki"1 In high head dewatering or effluent This is our fastest growing line of effluent e applications where pumping pumps.The 150 series is truly a workhorse performance is critical, this robust designed for reliability under extreme family of pumps is known for reliability, 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 1 applications with low pressure pipe (LPP) A and corrosion-resistant,powder coated 1 and enhanced flow STEP systems.Zoeller's epoxy finish add up to a long-lasting, i cool run design and corrosion-resistant, trouble-free product i powder coated epoxy finish,in addition to I-- the hermetically sealed,oil-filled motor and Z non-clogging vortex impeller add up to a a W long-lasting,trouble-free product �Q 04 IJ t © .ew.aaamwen MDE MINE USA P p ar. s - •y� W n• APPLICATIONS: APPLICATIONS: 2 • STEP or onsite applications STEP or onsite applications MAR 1 5 2023 2 • Water transfer • Light commercial dewatering Light commercial dewatering i MASON COUNTY ENVIRONMENTAL HEALTH SPECIFICATIONS: DJA SPECIFICATIONS: • 1-1/2"NPT discharge • 1-1/2"NPT discharge i • 3/10 HP through 1/2 HP • 1/2 HP through 1 HP j • Available in nonautomatic or with a variable level • Available in automatic or nonautomatic i piggyback mechanical switch • Model 137,139,140:1/2"(12 mm)spherical solids i • 1/2"(12 mm)spherical solids capacity with vortex capacity with vortex impeller thermoplastic impeller j • Model 145:3/4"(19 mm)spherical solids capacity with 1 For more information,see Technical Data Sheet FM2784. vortex impeller ,I • Bronze construction available(139 series) i ? • High head version available(145 series) id • Double shaft seal versions available for added protection I on models 140/145. r For more information,see Technical Data Sheets FM2782,FM2783. i is e PUMP PERFONCE CURVE ii E PUMP PERFORMANCE CURVE ! MODE 52/153 p MOOE1.1371140r45 50 I =- n ,■.■.■.■■. $ 14- 153 b_ iy 11..a...aa. I o .\.a.a..a. 1 12� 40 �- ■,.■...... 152 8 g 10 35 ,•- ■a►1■a■a■aa i t c ,\..■■■■aa i 8- 30 151 9 /.,_ ■\211\aaaa.. 25 ����\aaaa. g 5_ 2° „_ a.a.. 11 . •- a 15 cOt _ g MINEME / 10 2 5 ..a.al1 ► ,\. 1 2 ...aa1t. . 1.1 10 20 30 40 50 so m eo 100 c ■..a.®..®® GALLONS pj ,c c w a v K " K K ,s i UTRS 1. I 1 I I 1 I 7L �� 0 40 8;1 12° 160 200 24° 280 320 360 ma's c o w .c c_x FLOW PER MINUTE 014508 0.0.K•"w- -52655 de- /) 8 0 ALL rights reserved. ZOELLER PUMP CO. 1502-778-2731 1800-928-7867 I zoellerpumps.com 411111111111.1111116. ' . —__ _ • SECURED LTD IV=GAS Tana SEAL, ,, 24'DIAMETER , 1 \ ACCESS RISER i * FIXISH MADE - 1 I ----- ---- ---w------- I 1 1 rTh- ------ —',—,- --•—..-1---.---Tig=7--4-7- r:L.,,—.....\--1----•ri 1 . ..f.L— -.... .....t t ,---, TO PUMP 7---i • 1 : i._.__-------1'-TH II ;_-__--4 ,17-:..--.....- =mem FROM SEWAGE t i i • ! i :-..: na SOURCE 1 1 ...1 tervie MAT 1 1 1 1 1 I i I t l I I 1 i APPROVED 1 1 1 i i t.-- ? i • :...;t47T— ET:RUSET I \ 'LU-C1 &tL• 1 1 l 1 I I I I i FILTER . I 1 \ c...........______7L.,,,EDDIENTS 1 ., NPTyROVED TANKENVIRONMENTAL HEALT1 ---....7ASON cou &'?'c'-- 1 :---....-----------r---..---t----... rir MAR 1 5 2023 . . . erYTICALI I SECURED LID W1114 GAS TIGHT SSAL. 7 THREAD ' ED Uralift s 24"DIMMER I ACCESS RISER I , i FINISII GRADE at._ 4 ! 7-- VIZ FROM 93717C :21 i I - FE 1 TANK '-------------? cir .:: • •. —A.TO DRAINFZELD I i I y II ' 1 -----7-7- 94ERGEtier STORAGE s I ; .•• i zu'll i it SI NM WATER ALARM LEVEL -4 1-e- T f h I- 1 I ANTIM* VALVE f 1 1 A tC' 1 ROOM TIMER OFF LEVEL ' i WORKING VOLUME .*.--1.---1--r- INFIZEMair PUMP • ; i''' • FOR FLOAT , $EDIMENT SHROUD z i t '13-tjC S091/4,0 1 i —'4, t CHECK VALVE v ' i•Kki•.\---v\v-kkiA. I 1 - samterrs t ,, ,p SLISIKERSERAE . - i 1 1 CENTRIFUGAL • UrkD CC1 PUMP MEMP-AMMILEEL 1 I C.5„e4k-C,4.‘j\-t (TYPICAL) k AS MEM : **Note: Septc Tanks rriu rrIeet smnciai*required by\MAC chapter 246-272C and marl ufacturer must be on the Dept of Health list of registered sewage'wiz."FIGURE 2 3 : 95 7 of- 8 . .or 4, Gna ' SepticDe u � • , ATION& MADZTE A'\CE Lh STALL_ *.tal Pressure DisLibution Systems -Bed - 51n0349 'a PAt LA JOY JOHNSON.°. I. Install Laterals with contour of the around. EXPIRES , / - 2. Install bed bottom level. 3. Install locator tape or rebar at each end of all drainfiel later of 2 required in 4. Install observation ports as indicated on the plot plan. Minimum Glue to in each so bed with bottom extending to the d_�ocdk�mV soil d t'��removable cap on top of Observation Port cannot be easily port at final grade level. must be 5. Install drainfield during dry weather and soil conditions; any soil smearing 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 required. 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. Pull bio-tube every 6-12 months and flush back into tank. back into the 9. Install check valve in pump outlet line to prevent system from draining pump chamber. 10. 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. 11. 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. 12. Encase all water lines within 10' of drainfield and under any drivewayiparkirg areas. 13. Divert all storm water runoff away from on-site sewage system. 14.No curtain drains allowed within 10' of the up-slope edge or 30' of the down-slope edge of the drainfield and reserve area. 15.Have the septic tank and pump chamber pimiped or inspected every 3 to 5 years. 16.No vehicular traffic over drainfield area. 17. Inspect floats, clean filters, and test high water level alarm every 6-12 months as needed. 18. All materials and workmanship must meet County and State regulations. 19.Deviation from this design without prior approval from the Designer and Mason County Environmental Health Department will make this desiom null and void. 20. All manhole lids and access, sampling or inspection ports must have locking covers and be located at ground level. 21. 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. 22.All transport lines under driveways or parking areas must be encased to prevent crushing. 23. Homeowner is responsible for all property lines. APPROVED MAR 1 5 2023 g 4S- MASON COUNTY ENVIRONMENTAL HEP DJA