Loading...
HomeMy WebLinkAboutSWG2022-00083 - SWG Application / Design - 2/25/2022 (2) "�, 415 N 6TH STREET,SHELTON,WA 98584 l. I "1 ` MASON COUNTY SHELTON:360-427-9670,EXT 400 . I COMMUNITY SERVICES BELFAIR:360-275-4467,EXT 400 ` ELMA:360-482-5269,EXT 400 -' � Bu Jding,Planning,Environmental N¢alth,Community Health r r FAX:360-427-7787 On-Site Sewage System Permit: SWG2022-00083 APPLICANT HARRISON CHRISTOPHER T& Phone: 1.253.225.4783 CRYSTAL L Address: 2018 18TH ST PL SE PUYALLUP, WA 98372 OWNER HARRISON CHRISTOPHER T& Phone: 1.253.225.4783 CRYSTAL L Address: 2018 18TH ST PL SE PUYALLUP, WA 98372 SEPTIC DESIGNER PAULA JOHNSON -Arrow Septic Phone: 360-898-2255 Designs Address: 171 E VUECREST DRIVE UNION, WA 98592 Site Address: 22042 N US Highway 101 Primary Parcel Number: 422235000099 Permit Description: Replacement-4BR pressure beds Permit Submitted Date: 02/25/2022 Permit Issued Date: 04/21/2022 Issued By: Jeff Wilmoth Current Permit Fees Paid: $650.00 (additional fees may be required upon installation of system). Permit Expiration Date: 03/25/2025 (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. 7 Yearly dye testing required as part of permit 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. -- OEFICIAL USE ONLY. GATE -4E/Ft) MASON COUNTY , C 0 COMMUNITY SERVICES Pubilcifesith(CwnrKusity tit.Ith Fr,,,.,4,F4.1 F .,itts ,..-- CO xR.4,0 9673 et,Re Oir AG 4.4 440 4,, .4,.% SWG ,Z(:)—)„„-**),_ — 0 6 Ca2-) 6 2 eTS rt Mb Stry0 SiNt4N4SA VW Z CA Z '13 ON-SITE SEWAGE SYSTEM APPLICATION > > g X # rn 0 •:'PR_-W.' I PHONE. 0 Tn -Christopher Harrison ' (253) 225-4783 0 z i ... _,.... A:::ASS STREET CITY STATE,ZIP CODE 2018 18TH ST PL SE PUYALLUP WA 98372 CFESS S ,E C TY LIP CODE CD — ID 22042 N US HWY 101 Shelton WA 98584 =-. ..........__ .,,,,E0.DES0NER P.IONT —I Arrow Septic Desgins (360) 898-2255 0 , hAVE 0;lA4.4 -A PHONE ITI. PERMIT TYPE IsefeW we; CRINIKIt4 WATER SOURCE 5 RESIDENTIAL OSS ECOMmUNiTY OSS ECommERciAt OSS 6 PRIVATE INDIVIDUAL WELL 6;PRIVATE TWO-PARTY WELL 2 I C0.3 ... PUBLIC WATER SYSTEM PoWIch SNMI Water -YEE OF WORK`seitra one) $ Of NEV CONSTRUCTION,,UPGRADES n-RERAIR REPLACEMENT OTHER pupas sikAlEt art'tat<way, (71 0 "ABLE IX REPA.R 13 SURFACING SEWAGE 0 EXISTINC EP IL,../RE 0 SHORELINE r ,c,SMITTA.S al firDESIGN FORM(REQUIRED) VSEPTIC DESIGN(REQUIRED) BE DRoom s LOT SIZE r- I c) 0 EwAivEficsitig APPCABLE) 4 BR .55 acres 0 c) CIRCO'IONS I'C$iTE AND SITE CONOITONS (eV toc*eti gareo Take US-101 N toward Port Angeles. Drive approximately 13 miles. Destination on (R). I c) Sign at driveway says "22040", take long driveway all the way down to the waterfront ri) 10 I (.0 SiTE MUST BE FLAGGED FROM MAiN ROM)AND TEST HOLES MUSE SE FLAGGED WITH TEST HOLE NUMSERS I CO OFFICIAL USE ONLY BELOW Ti IIS ONE °JPGRADE i FAILURE SOURCE Iv..poruc purpoms, E3 VOLUNTARY 0 MAINTENANCEMUNIP,NG 0 BUILDiNG PERMIT °HOME SALE OCOMPLAINT ti OTHER Cri. NSPECTOR SOIL LOGS (2...t prt2,55Lire, .13eys ,..,;-',1kiEkl.-S CONON ons 6- , - ...- , t 0 i 0 i BY --------- v RECORD DRAA.REE AND NS',,.,,L,E-lCU PE FC RT SOIL CODES. P.VERY 0.CAAVE-LY S.SAND L.LOAM SI.SS.T C.CLAY E.'EXTREMELY R.ROOTS RFOLIIRED FOR FINAL APPRC,,..A. I Ec-oR SIGNATURE DATE APPLICATION EXPMAT ION SATE APP T`ONAPPROVEONSE T:P DATE 1 - - --5 LA /1*-2._ -41-3-2- I F MAY BE SCANNED AND AVAILABLE FOR PUBLIC VIEW ON THE MASON COUNTY WESSITE 14..4,-T. . Mi. c Fro i Mson Ceunty OM Printed from Mason County DIAS ,,--.,etr., .. DESIGN FORM—PAGE ONE Assessor's Parcel Number: 4 2 2 2 3 — 5 0 — 0 0 0 9 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. '1 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.:1 taxinmrn paper size: I I"X I%" PARCEL IDENTIFICATION Permit Number: SWG 2022-00083 Desiener's Name: Arrow Septic Designs Applicant's Name: Christopher Harrison Designer's Phone Number: (360)898-2255 Mailing Address: 2018 18th St PI SE Designer's Address: 171 E Vuecrest Dr It Rs),� Puyallup WA 98372 Union WA 98592 .4 e,t. � City State Zip City State Zip DESIGN PARAMETERS Treatment Device ❑Glendon Biofilter ❑Sand Filter 0 Mound 0 Sand Lined Drainfield ❑ Recirculating Filter,Type: ❑Aerobic Unit Make Model ❑ Disinfection Unit Make Model Other: Drainfield Type ❑Gravity Fif Pressure 0 Trench lrBed 0 Sub Surface Drip Septic Tank/Drainfield Specifications Laterals Number of Bedrooms 4 BR Schedule Class 40 Daily Flow: Operating Capacity 360 gpd Length (3)30 +(3)37 ft Daily Flow: Design Flow 480 gpd Diameter 1.25 in Septic Tank Capacity C > 1,200 gal Number 6 Receiving Soil Type(1-6} 3 Separation 3 ft Receiving Soil Appl.Rate 0.8 gpd/ft2 Orifices Required Primary Area 600 ft2 Total Number of Orifices 42 Designed Primary Area 603 ft2 Diameter 3/16 in Designed Reserve Area 603 ft'- Spacing 60 in Trench/Bed Width 9 ft Manifold Trench/Bed Length 30+37=67 ft Schedule/Class 40 Elevation Measurements Length (2)6 ft Original Drainfield Area Slope 6% °o Diameter 1.25 in New Slope. ff Altered 6% % Preferred manifold configuration used? IiiYes 0 No Depth of Excavation Up-scope 30 in _. nsport Pipe from Original Grade Down-slope 23 in i�dt .cf Es lJ iM 40 Designed Vertical Separation 42+ in ngth 160 ft 2. 9 2°22 Graveness Chambers Required? ❑ Yes ❑No gOptional m it 2 in Pump Required? lief Yes 0 No \V‘9 Dosing a d Pump Chamber Pump/Siphon Specifications r" t417 4 Difference in Elevation Between Pump Shutoff and Uppermost Dose quantity 120 gal Orifice 15 ft Chamber Capacity{Ft.,4 1,200 gal Uppermost Orifice VSHigher 0 Lower than Pump Shutoff Pump controls: Please check those required. Capacity ia),Total Pressure Head 24.78 gpm iiTimer fiElapse Meter fie Bent Counter Calculated Total Pressure Head 19.40 ft If Ti : PPPR p on 3 minutes .Pump off 6 hours Comments VE JUL 12 2022 1 LUUNTY ENVIRONMENTAL HEALTH DESIGN FORM—PAGE TWO Assessor's Parcel Number:4 2 2 2 3 -- 5 0 -- 0 0 0 9 9 Permit Number: SWG 2022_00083 DESIGN CHECKLISTS Scaled Plot Plan Scaled Layout Sketch Cross-Section Sketch 0 Test hole locations Ge?( Drainfield orientation and layout Reference depth from original grade: g Soil logs g Trench/bed dimensions and g Septic tank O Property lines critical distances within layout g Drainfield cover g Existing and proposed wells D Box;Valve box locations Reference depth from original grade within 100 ft of property g Septic tank/pump chamber and restrictive strata: g Measurements to cuts,banks,and locations 1 ' Laterals,trench/bed,top and surface water and critical areas lif Observation port location bottom 0 Location and orientation of fig Clean-out location 0 Curtain drain collector curtain drain and all absorption EZT Manifold placement 0 Sand augmentation components g Orifice placement Other cross-section detail: g Location and dimension of [� Lateral placement with distance g Observation ports/clean-outs primary system and reserve area to edge of bed !` Buildings ti Other Information g A.udible!visual laa referenced Yes No • Direction of slope indicator g Scale of dr .A. 4, on scale d 0 Design staked out g Waterlines bar . shh 0 gRecorded Notices attached II ,0 Roads,easements.driveways, + • ` ,, 0 gWaiver(s)attached parking • '` A Gd 0 Pump curve attached North arrow and scale drawing r'�` :�"1� G� 0 Evaluation of failure shown on scale bar "�' FAULA JOY JOHNSON Non-residential justification •UfM48Eti"MgrONEft" UWS:W 0 riff Waste strength 0 174 Flow DESIGN APPROVAL The undersigned designer must be 'tied b, 'nstall rat time of installation g 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 on-site leg lations: `-- Gil( 1-7 1—C 2 —�z Enviro me , ealth Specialist 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: 3- .) 5 -- S ✓ 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 June 29,2022 Mason County Department of Health Services 415 N 6th St Shelton,WA 98584 RE: Christopher Harrison Property(Parcel#42223-50-00099) Septic Upgrade Dear Inspector: Attached is an upgrade septic design for a property located at 22042 N. US Hwy. 101, Shelton, WA 98584. The property had a 5-bedroom home with a permitted septic system,but years ago the house burned to the ground. The county had granted permission for the new owner to build a replacement home as close to the Hood Canal as the existing concrete foundation footprint. The new owner is planning a new 2-bedroom home and a 1-bedroom future ADU garage conversion,but this septic design is for 4 bedrooms to give flexibility in the future. There is an old tank and small pump tank less than 50 feet from the bulkhead that will be removed or decommissioned. We propose installing new compliant size tanks with a 1,200 gallon 2-compartment septic tank with effluent filter followed by a single compartment 1,200 pump tank. The pump will have a new control panel with audio/visual alarm, a timer, elapse meter and event counter. These tanks are to be installed at least 50 feet from the bulkhead and Hood Canal. The new drainfield is proposed as shallow pressure beds totaling over 600 s.f.,this is a soil type 3 with excess vertical separation. There are no wells in the vicinity as the lots are all on the Potlatch Beach water system. We have also allowed for a fully compliant 4-bedroom reserve drainfield area totaling 600 s.f.. This property has ample drainfield area and very good/deep soil. The property owner's contact information is as follows: Christopher Harrison . rt 2018 18th St PI SE 0 .`fir '. Puyallup, WA 98372 r `Y't. (253)225-4783 Z. '„(_ r ~ If you need furthe i , ,,pre*contact my office at(360) 898-2255. �• +•. g. Sincerely, PRW,A JAY JOHNSON '� 4FPROVE `• EXPIRES � 1 / 2'�{.� «\ JUL 1 Paula J. Johnson ?Q Licensed Onsite Wastewater Treatment System Designer MA41VCOUNTYENVIRO ?2 Jaw MENrkk HEALTH Il 2 ° 05 . . 1v ( — Audio-visual Alarm -aa 0 Cleanout - ( 1200 Gallon Septic Tank 2-Compartment with . Effluent Filter 011,.00 G11on Pump Chamber .i\- . • \ 3o �`f�e \ 1 • 3U %X \ -A- }tea. . ) 0- t i 4i-‘ -47°".)- e"'d --ID:' ...-C2x5t3"-'-'6 . ... i 1 "ll'..?".°—‘ - 4" t l - 3c Ex:s- ,Ag 1 -----e -Fla t PIS ; . • . Fi.f.-)--14Are.,:,36k j cAv Exs-t-; , 1 rii5 . 0 : i .R1....t.e.0 'i 22)-2_3 -5-0-0 0-0 ct 9 4-e"r--6 0- esox # 06 . "h:'"'"1----43. ,--,---- _ stoic o� old S'M1'h 2 ii _.; u s.�-io.-./ . . 1 • A • 1.., . _ • tl`� s oo3:21;2'2 r �2 PAULA JOY ���S t SON .•y `04 A 3 - - , °L...--, c'D C_Q A 1-C)° °4 % JUL 1 MA COUNTY ENVIRONMENTAL HEALTH i/YT(nl irC Y:U1r1rl6'1G v .,� . . Sc9. 4., _ ! _ i 0( 1, 1 . ® (e /S Za • l�,.a3- 17le i ca ! 5o` Ckanoui----...__ Valv.e Con-f^roi bo)e 0105$fvafi0 VI 1' © j w 1 bq II VqI VC. FOCI' • Lto Tye;tQ or Aye, sea`%'0 2 "fC'ahSpor4 t i yur '' I t _,, � vax Co n-c o! b / ha1I e ►. waaHr q _ t r �I. tiT it' -- \N *, , ..s . rP(Ca � ` ' 510J343 .'� ), O f;¢ Ce u4. PAULA JOY JOHNSON '.\(), seat'"9 lSais'Ia• f irt# b5rrva +or cD _ , _ — TO risnat ,•.!Z`' 1.--s44 'cv--`'` 3 race kt 1-3zs _ 30 0 0 0 . G / 4----- wa-eakQ 1 - • Ar5431A.kre-C.Ac-- \f‘A0t- it -‘ -eS4'.- CAMS&—gre_C fa • `= r SCREW ON CAP S C,& . t z . t Z 3 I• LA: 45 DEGREE ELBOW A . `• LATERAL 0 o fZ1 PIG LS- ,,;:riTi: 4) END OF s r t DETAIL 480,, '!�� , ke Note: (I'rencla with Infiltrator Lsyout) C P r Observatioa�Port-to be 4 solid LLEAN OUT eNryF4/ �2022 VC P top of infiltrator to Lathed . R� b, •e. A removable cap shall be installed on NOTE, CLEANOUT TO.. BE FROM 0 TO 4, 4144,, ' observation port pipe. Screw observation Poi INCHES BELOW FINISHED GRADE. CLEAN OUT yFq�ry into infiltrator they can't be removed Minimum of to system.MARK ENDS WITH RE REQUIRED AT END OF EACH LATERAL. Laterals are to be centered in t+cliches. Length Length Orifice # Distance from Distance from Lateral# (In.) (Ft.) Spacing Orifices Feeder Line (In.) Cleanout(In.) 1 360 30 60 6 30 30 bed 1 2 360 30 60 6 30 30 bed 1 3 360 30 60 6 30 30 bed 1 4 444 37 60 8 12 12 bed 2 5 444 37 60 8 12 12 bed 2 6 444 37 60 8 12 12 bed 2 Total Lateral Length 201 Total#Orifices 42 I GPM = 24.78 Dynamic Head Calculations Selected residual pressure: 2 ft. Length (Ft.) #Orifices Transport Pipe 160 42 1.75 ft. Feeder Total Lateral Line Length Lateral#1 30 4 34 6 0.07 ft. Lateral#2 30 2 32 6 0.07 ft. Lateral#3 30 4 34 6 0.07 ft. Lateral#4 37 4 41 8 0.15 ft. Lateral#5 37 2 39 8 0.14 ft. Lateral#6 37 4 41 8 0.15 ft. Total Elevation Lift ` 15.00 ft. Total Dynamic Head Fy .. 19.40 ft. mi ...‘51'.' A A A b • :`�i/ • 5100349 \1i,'‘ S' PAULA JOY JOHNSON ... tr1., 414s JO/ " 0 Opt . L"tcE Ssrb DESrcNl=�f f. all RONMF r k NT,9�yF .._ gzry C9,, \$ea i L Flow-Mate N Dose-Mate • In high head dewatering or effluent This is our fastest growing line of effluent • applications where pumping I 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 ic"s. R of applications. They are well suited to environments.Zoeller's cool run design � -- '� ?, applications with low pressure pipe (LPP) a and corrosion-resistant,powder coated and enhanced flow STEP systems.Zoeller's epoxy finish add up to a long-lasting, 1, cool run design and corrosion-resistant, trouble-free product. powder coated epoxy finish,in addition to ' 6 , , the hermetically sealed,oil-filled motor and Z non clogging vortex impeller add up to a a long-lasting,trouble-free product. �Q� •� ---- MADE INTHE USA • U. ....u.c.uuamraus.cow,rirta W — a1� APPLICATIONS: APPLICATIONS: G • STEP or onsite applications • STEP or onsite applications D • Water transfer • Light commercial dewatering • 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 1 • 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 n • 1/2"(12 mm)spherical solids cap with vortex capacity with vortex impeller 1 thermoplastic impeller • Model 145:3/4"(19 mm)spherical solids capacity with For more information,see T ' wl Data SF 278 vortex impeller • Bronze construction available(139 series) J(/‘ If ke High head version available(145 series) " f • Double shaft seal versions available for added protection M� COUNTY / 20242 i„ on models 140/145. 6N(//RvN �` For more information,see Technical Data Sheets FM2782,FM2783. T /(J��cc I f PUMP PERFORM� RVEN qL 1 PUMP PERFORMANCE CURVE MODEL 151/152/15 F+�,7;9 MODEL 137/140/145 '` 50 n m M■■■■■■■■■ 14- 45 153 '■■■■■■■■■ �; . ■■■■■■■■■■ 12- 40 '' ■■■■■■■■■■ L a 35 7 ■l1■■■■■■■ 30 � U ,0- ,. . a�■■■■■■■■ 1 8- 151 -. ▪ ■s i••■■■■ 0 25 ✓ ■■■_`■■■■■■ ~ 6- 20 63 ■■■■■ e .� ■■■�,■■■■ ,nriallMININEIMII 4- 15 s ■■■■s�'■■■ 2- ` ,o ■■■■■t1►\■■ 5 1 , ■�■■■®�11■ , 10 20 30 40 50 60 70 80 90 100 GALLONS LITERS M. 0 40 80 120 160 200 240 280 320 360 CAL1fQ'S, m ,w 320FLOW PER MINUTE 0145a8 [LOW PER MINUTE 152656 8 ©All rights reserved. ZOELLER PUMP CO. 1502-778-2731 1800-928-7867 I zoellerpumps.com �� c, Q • . ' • ' •-• Press=Distaation Syssests -Fteccazacsidad Sesadssis sod Guid' sage Eflteelvs Dam - 1,2007 ' - . . , SECURED L1O VRTIS GAS TIGHT SEAL • • 24"0411022 .. 1 - ACCESS RISER _ • - sossemmillim WW1 GRADE: soloolowillum .is, -..--- --• _-_--•---- - ----- -----------= '---Z-E-.----_=_I---:-= • - ......_ -----. --, -- --- --- ----. -. . .- • • .111111111111111111111L . 1P ..9 . i —_.:4. :. . •Di_ _ _ _. . -:( i\ ... ...:_. L. .. . ... croaseRruir - am 4.5 Bog 11 SOURCE 1 FLOATING NAT L .11"neFR.A.14DI9ffTER . • • • . SEDIMENTS 444sn,,cr /04 1/4* / NI°-\''2•••-- ,7'‘. ..... v6-4, - v22 .„, , '• 1/1R0414 A. ,:v I 2 -4g3S -r- . .., ' - 4.1,.,,,-.e....s•-‘ e-t•- NeErriamth • -c41, =MALI — t*,- muscat LID WMI GM new SEAL C:70.33•VAS THREADED um& 24"MUM .s., ,, siin ACCESS RISER Film GRADE ' i SERVICE L--------4 'tog-ye* , - ill i': 4 .f,A-- .1 -------.---: . , FROM SEP= TANK • ... -,._ -- ...L.---.-- t i . - EMERGENCY aTORAGE I • I.. • ANTI 5WRON VALVE* • MR WATER ALARM LEVEL -.......-a. NORNAI.TINIER OFF LEM.• WORKING VOLUME 1 4 --010EPENDEir .:•sk• FLOAT MN • POI FLOAT etiOLOSED POMP I : . 11101.11111011 5DNINT SHROUD• - a ' CHECK VALVE• , ------".--'---—- --- ----- I 8-1-- --Ir • 7. SENEWTS t fat U1-1.1 -:" SUOSIESINOLE CENTRIFUGAL : PUMP Inariatingg LTYPICALI . . 'AS 1126DED Septic Tanks must meet standards required by WAC chapter 246-272C and manufacturer must be on Dept of Health list of registered sewage tanks. 9GURE.2' . .._ _ Paste 35 of 65 • 7 G wful. Septic Design INSTALLATION & MALNTENANCE - sok ' 'h 3. • 14' Pressure Distribution Systems - Bed 5,;,,3,9 : PAULA JOY JOHNSON }}i,�t� 1. Install Laterals with contour of the ground. �— EXPIREES O$/IVS` 1 2. Install bed bottom level. 3. Install locator tape or rebar at each end of all drainfield laterals. 4. Install observation ports as indicated on the plot plan. Minimum of 2 required in each bed 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 trade 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 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. 9. Tnstall check valve in pump outlet line to prevent system from draining back into the 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 driveway/parking 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 pumped 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 design 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. APp Rov kC M"'S4'vrn�NrY 2 20?2 1 ?el v JBI RONMEN7A y�ALT w