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HomeMy WebLinkAboutSWG2023-00425 - SWG Application / Design - 10/4/2023 A ,. MASON COUNTY 415N 6 SHBTREET SHELTON, EXT 400 SHELTON:STREET, BELFAIR:360-275-4467,EXT 400 11 )+ Public Health & Human Services ELMA:360-482-5269,EXT400 FAX:360-427-7787 On-Site Sewage System Permit: SWG2023-00425 APPLICANT MCBRIDE KATHERINE S Phone: 1.253.666.3232 Address: 1827 LAKEHURST DR SE OLYMPIA, WA 98501 OWNER MCBRIDE KATHERINE S Phone: 1.253.666.3232 Address: 1827 LAKEHURST DR SE OLYMPIA, WA 98501 SEPTIC DESIGNER PAULA JOHNSON -Arrow Septic Phone: 360-898-2255 Designs Inc. Address: 171 E VUECREST DRIVE UNION, WA 98592 SEPTIC INSTALLER THAD BAMFORD- Bamford Septic Phone: 360-790-2364 Repair Address: 301 WALLACE KNEELAND BLVD STE 224-332 SHELTON, WA 98584 Site Address: 201 SE LAZY DOG LN Primary Parcel Number: 220297500010 Permit Description: 6-bedroom pressure system Permit Submitted Date: 10/04/2023 Permit Issued Date: 10/13/2023 Issued By: David Anderson Current Permit Fees Paid: $780.00 (additional fees may be required upon installation of system). Permit Expiration Date: 10/10/2026 (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. C:F=1.1,;L ER SD_. MASON COUNTY ( 0 - 3 23 c to _. u. I COMMUNITY SERVICES - o y -- Public Health / I N Er. on. ennl Rol, npP G 0 TOD f{ N SWG 'a..023 - 30L41S"o 2 ON-SITE SEWAGE SYSTEM APPLICATION D A 3 O m m w SRN' IP Katherine McBride i GC Dean Freeman (360) 791-9965 z c MAJNG ADDRESS.=i REE-.OITY SL3_Zh CODE g 1827 Lakehurst Dr SE Olympia, WA 98501 z kt ` Fs 201 SE LazyDo DLn ` Shelton, WA 98584 OL k ^ 9 ���'if rrfrd•(,P � n� ( � ?4ME OF DESIGNER '- N �°` Arrow Septic Designs, Inc (360) 898-2255 ;q NAME Of INSTALLER I'EOI- a 0 Bamford Septic Repair, LLC (360) 790-2364 < rn m Pone UI REDENTIA 035 hCOMVLI.TI DEG �COMMER A.RES �g R E INSP.'D aL 6 P WC-PART,'NEL_ Z I CO NOR!,.�� , 6 15 r E s EES lit NEW CONSTR' OTION'UPGRADES FREPAR;REPLACEMENT 5i 0 TA_LEIF REAR SLEW TOES 0 5.R;-C GC.SE SAGE 0 EXISTING EAI_JEE cd SIYORELIN5 m W G A. r cm FORM(REOREDI W'SEPTIC.DESIGN{2 QUIP:DE .IR G._. F O bWAIVER/S)(IF APPL.CABLE) 6 5.06 acres o ' _ S, 0 ORES-IONS TO SITE AND SLE., NL'I IONS (ES o.we.c-'e ***Program your GPS for 6691 SE Arcadia Rd*** Address recently changed. o From downtown Shelton, go out Olympic Hwy South (Hwy 3) and turn (L) onto SE Arcadia Rd, r O turn (L) at SE Lazy Dog Ln (new road name), stay (L) at the Y in the road and go through gray 2, gate. You can park by the woodshed. You'll see the studio and main house down-slope of you, the test holes are over to the right. SITE MUST BE FLAGGED FROM MAIN ROAD AND TESTICLES MUSE RE FLAGGED WITH,EST HOLE NUMBERS. I 0 UPGRADE I FA y URE SOS ERE o,Roo, AL osesi 0 VOLUNTARY 0 MR.INTENANGE,PUMPING O EJI_SDe PERWE CI HOU b.I? O.ORP s SI ❑OTHER NEEEE DE SC'LLCGSS- Tµ PO.Fa?5 N Mai)r5 /r pp2 VO t3:0' 7Z'T t� ti4 / .1:� F o�l:� Irian UR. SOIL CODES: NS PE ORRG.AT„R.I ////7&1 F l / I°lE?ATSU 76 ,IS(o_O/E l3(z 0a3_- _ THIS FORM MAY BE SCANNED AND AVAILABLE FOR PUBLIC VIEW ON THE MASON COUNTY WEBSITE DESIGN FORM—PAGE ONE Assessors Parcel Number: 2 2 0 2 9 — 7 5 — 0 0 0 1 0 A design will be reviewed when 3 conies 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. W atinnun paper ace: //"A'/ _ 1, .. PARCEL IDENTIFICATION • Permit Number SWG7Q73-0642S Designers Name: Arrow Septic Designs, Inc Applicants Name: Katherine McBride _ Designers Phone Number: (360)898-2255 Mailing Address: 1827 Lakehurst Dr SE Designers Address: 171 E Vuecrest Dr Olympia, WA 98501 Union, WA 98592 City State Zip City State Zip . _ 'DESIGN PARAMETERS • Treatment Device O Glendon eiofilrer ❑ Sand Filter 0 Mound 0 Sand Lined Drainfield 0 Recirculating Filter.Type: ❑Aerobic Unit bt aJco Model ❑ Disinfxrion Unit Ytako.Model Other__ Drainfield Type ❑Gravity 5Zi Pressure W 'Trench ❑ Bed 0 Sub Surface Drip Septic Tank/Drainfield Specifications • Laterals Number of Bedrooms 6 Schedule Class 40 7 Daily Flow:Operating Capacity 540 gpd / Length 80 ft Daily Flow:Design Flow 720 opd---- Diameter 125 in Septic Tank Capacity(working) 1,200+ 1,200 gal r Number 5 Receiving Soil Type(I-6) 4 Separation 5 ft----. Receiving Soil Appl. Rate 0,6 gpdfra' Orifices Required Primary Area 1,200 ft` - Total Number of Orifices 80 Designed Primary Area 1,200 ft' � Diameter 3/16 in Designed Reserve Area 1,200 $- r Spacing 60 in Trench/Bed Width 3 fl Manifold Trench/Bed Length 400 ft -- Schedule:Class 40 7- Elevation Measurements Length Header ft Original Drainfield Area Slope 0-1 ,o Diameter 125 in New Slope, If Altered 0-1 % Preferred manifold configuration used? MrYes 0 No Depth of Excavation BP-slope 28 in i Transport Pipe front Original Grade Deem-slope 28 in Scheduleflass 2 _Designed Vertical Separation 40+ in Length 50 ft Gravelless Chambers Required? ❑ Yes C No &I Optional Diameter 2 in Pump Required? El Yes 0 No Dosing and Pump Chamber Pump/Siphon Specifications Number of dosesiday 6 % Duff in Elevation Between Pump& Gppemost Orifice 10 ft Dose quantity 1zo gal es di Drainfield Squirt Height/Selected Residual (head) 2 it Chamber Capacity (flood) 2,700(1,800 min) gal Lppenuost Orifice Higher 0 Lower than Pump Shutoff Pump controls. Please check those required. Capacity a Total Pressure Head 47.20 gpm Itimer alapse Meter 'Event Counter Calculated Total Pressure Head 19.83 ft If Timer: Pump on 2 min ,pump off 6 hr Comments 1°12 DESIGN FORM—PAGE TWO Assessor's Parcel Number: 2 2 0 2 9 — 7 5 -- 0 0 0_ 1 0 Permit Number: S VJG DESIGN CHECKLISTS Scaled Plot Plan Scaled Layout Sketch Cross-Section Sketch Test hole locations 7 Drainfield orientation and layout Reference depth from original grade: ❑ Soil logs g Irench/bed dimensions and 64 Septic tank Property lines critical distances within layout 2r Drainfield cover Wil D Box/Valve box locations Bt Existing and proposed wells Reference depth from original grade within I00 ft of property 64 Septic tank pump chamber and restrictive strata: g Measurements to cuts.banks.and locations Gd Laterals, Irenchtbed,top and surface ruler and critical areas 64 Observation port location bottom ❑ Location and orientation of 7 Clean-out location 0 Curtain drain collector curtain drain and all absorption g Manifold placement 0 Sand augmentation components Orifice placement Other cross-section detail: g Location and dimension of Lateral placement with distance g Observation ports/clean-outs primary system and resery e area to edge of bed 6ui'drnes Other Information Ii6 [� Audiblevi a rm referenced Yes No • Direction of slope indicator 64 Scaleof dr rrn on scale g 0 Design staked out ❑ Waterlines bar , ❑ Si Recorded Notices attached Et Roads. easements.driveways, 7�j, ❑ 64 Waiver(s)attached parking _ • D ItZsV wr ❑ Pump curve attached g North arrow and sale drawing € <� +� ❑ Evaluation of failure shown on scale bar c e one ....1144 1 ' '>~ Non-residential justification ^"'Q2' PAULA JOY JOHNSON ' [� El MI SJ'' E 3, EAU I'GNEp" 'r). ❑ g Flow e strength exaraes n . DESIGN APPROVAL The undersigned designer must ben red by ins Iler at time of installation gYes 0 No Ig-32S Signature of Designer Unix The undersigned has reviewed this design on behalf of Mason County Public I-lealthand determined it to be in compliance with state and local on-site r ulat'ions: "" _V1J/4Z3 Gnviromnental I lcalth Specialist Date J. CAUTION: DESIGN APPROVAL IS VALID ONLY UNDER THE FOLLOWING CONDITION: ✓ The design is tamped"Approved" by Mason County Public }lcalth. �� /'/ 'jam 7 ✓ The Onsire Sewage Permit has not expired,d the Perini: Expiration Date is:�(V 7(.(�/✓( V Drain field 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: 17 72015 Arrow Septic Designs 171 E.Vuecrest Dr. Union, WA 98592 October 2,2023 Mason County Department of Health Services 415 N 6th St Shelton, WA 98584 RE: Katherine McBride(Parcel#22029-75-00010) Septic Evaluation & Upgrade Letter Dear Inspector: Attached is a replacement/upgrade septic design for a property located at 201 SE Lazy Dog Ln, Shelton,WA 98584. (Address was 6691 SE Arcadia Rd—recently updated.) There is an existing home built in 1981 that ties into a gravity septic system of the same era. The existing septic system has a 1,000-gallon 2- compartment homemade septic tank with a gravity drainfield of undocumented size or location in the lawn below the home. The owner is planning significant upgrades to the property, so they would like to upgrade the septic at the same time. The new septic will allow 3-bedrooms for the main home, 1 bedroom each for(2)RV/small cabin spots, and I-bedroom for the caretaker house for a total of 6-bedrooms. There is also an existing studio building with a proposed bathroom. The existing septic tank is to be decommissioned or removed and the old drainfield is to be abandoned. The main tanks will be located near the caretaker house and consist of a new 1,200 gallon 2-compartment (operating capacity)septic tank with an effluent filter followed by a new oversized 2,700-gallon pump chamber, (1,800 gallon minimum flood capacity). The RV/small cabin spots can gravity flow into the new tanks and the studio and main house are to have new 2-compartment septic tanks with a solids pump in the second chamber,sending the effluent over to the new main tanks. The new drainfield will consist of 1,200 s.f.of pressure trench using an application rate of 0.6. 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 upgrade with 40"+of vertical separation. The tanks are over 50 feet and the drainfield is over 100' away from Hammersley Inlet and from the proposed new well. We have also shown a full reserve drainfield area. The property owner's contact information is as follows: Katherine McBride 1827 Lakehurst Dr SE Olympia, WA 98501 Dean Freeman(360) 791-9965 general contractor If you need further information,please contact my office at (360) 898-2255- - - Sincerely • Pa 'oioh ° �`•,�"� L' rtewater Treatment System Designer J L.1302.49 ((�',, -�Z CfiVLA JOY JOHNSeN �;� ir,' OtiE5iO exPtaE'6e H © KATH5QWeMc8K16 a: &S .,1. : koi Se LJ{T-s( Do, In i 4 . , , '0%, T s \ir srun.-o d s1. c.."... H si ® - ,o c. WOOD SHED . TY% '5, repiS i r\;\\\ • ram, - :u s. rco`s PRorroses i 11 = r r o i 2''80 irr cm- WELL F t l: w_ `4; ( v<C,rAA C f !k F / ices,: is i i ] O Audio V+sua Alarm µ ,,,,J, '' of 1 0 Cleanoti ei.4 € anNf. �- s I7. j 1200 Galion Septic Ta O' amm�JOY JOHNSON 1.kf1 2-Compar ent F „n < ,i^�fJSt,17E5iGNffN ' + l Effluent Filter �c - EEAaREs' i?si -cs i ' 4) 1 00 Gallon Punic Chamber Ei/ ` vgl e Cc,rtrel Bnx r � 'J�- per i '. C"'� t 1 ' w .H p. , r. .. r, .i � _7j \ 0 c ! � q � » \ . r \ • ` ! 0 � ° j \ ! f ! ! , ¢ ) , _ / ! & 2 ! I1a ^ I \ \ � � ~ | ! ƒ \ ? � \ a � f� j ! , 22 , f- § 2 , ! 21i L i \ • z ! \/\ co - > § 4 \: /\ . \ \ u¥j . )/ if � N ! � / | } | 1 5 ^ ® ` \ ` ,t | , i - 1.--.....%-...... & I� k \ A »\ » ! / ` \ N ) ) � L. ! lf -i y !, - ! # &\ ! ! \ Zflt } • - / r % ~ y } ks it / \ \ , th / . L g . + -z_ Length Length Orifice it Distance from Distance from Lateral# (In.) (Ft.) Spacing Orifices Feeder Line(In.) Cleanout(In.) 1 960 80 60 16 30 30 2 960 80 60 16 30 30 3 960 80 60 16 30 30 4 960 80 60 16 30 30 5 960 80 60 16 30 30 Total Lateral Length 400 Total#Orifices 80 GPM = 47.2 Dynamic Head Calculations Selected residual pressure: 2 ft. Length (Ft.) #Orifices Transport Pipe 50 80 1.80 ft. Feeder Total Lateral Line Length Lateral/PI 80 2 82 16 1.07 ft. Lateral#2 80 7 87 16 1.14 ft. Lateral#3 80 12 92 16 1.21 ft. Lateral#4 80 17 97 16 1.27 ft. Lateral#5 80 22 102 16 1.34 ft Total Elevation Lift 10.00 ft. Abq.1 Total Dynamic Head . 1 19.83 ft. .0 " tk1. ,, .!it S <J PAULA JOY Jonysp* an( . pwars 5 0g1 Z • SED{IRED LID WITH GAS TIENT SW 1 24. ACCESS •___ RICOH GRACE IFs Sara PROM SEWAGE souRCE lilI FIAATLK MAT • APPROVED FL.T6t SEDLEDRS SRFTIC TANK inEMELI SAc S -t�waa ,, 12e-0 o ` U C 6� �h�v uti "Note: Septic Tanks must meet standards required by WAC chapter 246-272C and manufacturer must be on the Dept of Health list of registered sewage tanks.** pe"""ENTsf,„Fs ` 2700P & 2700P—HW 6 2765 GAL FLOOD CAP. u. fri,p 1 137" 31 . 4" a4.- 90 CC I , TOP VIEW 24" 20 I 84` 1 1 i 3 i 6' PVC PORT 24' CMNCO TAN( ADAPTER 4. CAST-A-SEAL OACKFT ea a is NIIIIMMIIIIIIIIIIII aline- II 4 . 4532 GALS. PER/INCH 68" 56" 4 3 2- 1 /2" H C 1 i --7 41/402 ADPPDX. WEIGHT 16,500 L' BS 1371 ' Bronze construc0on available(139 series) • High head version available(145 series) • Double shaft sea Wersions available for added protection Flow-Mate on models 140/145. For more information,see Technic:Data Sheets FM2782,FM2783. In high head dewatering or effluent applications where pumping — performance is critical, this robust _ -- t 't >w r e rrenPnarO=-La. family of pumps is known for reliability, — .note- us • durability and performance. These _ • pumps are especially suited for harsh environments.Zoeler's cool run design i ' ! 1 and corrosion-resistant,powder coated - [ ; * l C epoxy finish add up to a long-lasting, • 1 3 trouble-free product. .1 9 APPLICATIONS: - II _ 11 • STEP or onsite applications ,J r • Water transfer 9 '- C • Light commercial dewatering {1 Z '- SPECIFICATIONS; s �� • 11/2"NPT discharge • 1/2HPthrough l HP Ve MADE IN THE USA • Available in a utomatc or nonautomatic lntn YW0RIC 01 U i L1t1911 • Model 13Z.139.140:1/2"(12 mm)spherical solids 1 "I capacity with vortex impeller - s „ • Model 145:3/4"(19 mm)spherical solids capacity with .. ._ vortex impeller ._"••^- _etc, 151 152x£ or w PUMP PERFORMANCE CURVE Dose-Mate MODEL l51/1 5 211 5 3 This is Our fastest growing Line of effluent �' s Is pumps.The 150 series is truly a workhorse , designed for reliability under extreme r_ w i '.. conditions in an effluent environment. _ 150 series pump curves covera wide range '. , of applications. They are well suited to 1•2 1 33 _ , applications with tow pressure pipe(LPP) and enhanced flow STEP systems.Zoeller's 2e - cool run design and corrosion-resistant, - powder coated epoxy finish, in addition ` to the hermetically sealed, oil-filled motor s _ and non-clogging vortex impeller add up to a tong-lasting trouble-free product. 10 APPLICATIONS: S 1 • STEP or onsite applications o MADE IN THE USA I IC 20 30 40 m BO ro 20 10 I00 • Light commercial dewatering L11611/516907I0604101 CA—L0'SII SPECIFICATIONS: LITERS [ a0 Ilo 122 let 200 240 E40 3£ aW • 1-1/2"NPT discharge 60V:PE5 MITE o-adds • 3/10 HP throughinin 112 HP � ��� • Available nonautomatic or with a variable level piggyback mechanical switch ^ Va �S r 5�f'U cQ �^w&L 1n�' • 1/2"111own)sphe'ital solids capacity with vortex /�N• thermoplastic impeller �q �-( �t ,t(/� For more informalion,see Technical Data Sheet FM2784. tJ•r• V �` — -'� ©All rights reserved. ZOELLER PUMP CO. 1502-778-2731 I goo-928-7867 I zoellerpumps.com 9 2-Compartment Septic Tank with Solids Pump in Second Chamber SECURED LID WITH GAS TIGHT SEAL I 24 DIAMETER *COWS RESER \ a MUSH GRADE - - fue R 113/4151:1011SMillti MIAS � FLOATING MAT a�PS tip T 3 a C FL100-Series 6r-- -`v^^v d-, 3/4-1,- St\ l `et `^ ' External Construction Power Card Motor Level Control I Impeller Discharge Dual Shaft Seals Maximum Fluid Temperature - Fasteners A =' ,]�' ---_ - -„ gV Vl, e()i1-`s_ CA-ann^ao-2-C' o -,-` 'fit- ` " jaM1 i\ 3 IN t c arCA=-icCiA e . CO LENGTH WEIGHT MODELS VO-2 PHASE AMPS DISCHARGE AUTOMATIC IN FEET IN LES R102M-2 1 208-230 1 12 1-H2'b2' No 25 7 1 I]024-2 208-2,0 FL103M-2 1 20S/230 3 9 Yli2'LS NO 25 71 -: em1 tCO-480 - 1 ' r 22 i1 FUO5M-2 1 5/5 3 33 1 :] E2 No 25 1 Performance Curve 60 Hz 3450 RPM l/ 11 -�! -_I- 6'1 ".sT. . L-e. V! a -_ 1 I ‘(5 2_- - - Liberty Pumps 7000 Apple Tree Avenue Bergen,New Mork 14416 Caw ght®:Ibe oi 4r44,5 122 2C23 4i. 'gr:s e,e.ed --oe/69-2C223 Phone 800-543-2550-Fax 585494-1839 ❑berryPumps.corn set-A_ a '. o. 3c -1-0 ..fit -4-0k-4c 4* Care-Fck.J4s {- 4a-L, Dimity pumps, ct Pump Specifications oink FL50 Series 1 /2 hp fir Submersible Effluent Pump i� 1SG( am. I I Flow(Liters Per Minute) 0 38 76 114 151 189 227 255 303 341 379 60 _. _.__. . 18 50 ___ ____ 15 40 _. ___ 12 a a 1I a i i 20 __ 6 } _J 0 — _ _..... --_. _... .... 0 0 10 20 30 40 50 60 70 80 90 100 Flow(GPM) P Wapiti. Septic 12)23[q.FL3 ', `' 'P\°�f pr LNSTALLATION & MADaENANCE ._a Pressure Distributor Systems %r ' 514349 . <r efj-W PAOLA JOY JOHN50 ; ,p ips s�tsn sr Ts 1. install Laterals with contour of the ground. �""'EXAMS L iSi � 2. Install Leuch 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 dras*ockinative soli interface. Glue "T"to bottom so Observation Pon cannot be easily removed from ground Instil removable cap on top of port at fnai grade level. 5. Install drainfield during dry weather and soli condii_ons; 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 rebel). 7. Install audio/visual high water level alarm. 8. Install 1/8"mesh non-corrosive puump 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 -ark. - 9. install anti-siphon valve above primp in pump chamber to prevent the pump chamber from siphoning into the drainfield. 10. Install check valve in pump millet line to prevent system from draining back into the pump chamber. 11. Tee to Tee constr;ction 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 est and Environmental Health Dept. approval, n_-- orifices down (6 o'clock) and glue aterals to manifold. Orifice shields may be used with orifices in the 12 o'clock position .n Iieu of turning the orifices down to the 6 o'clock position. 12.'Pilter fabric required over drain rock prior to back filing. if the drain rock extends above natural grade, run the filter fabric at least 2 inches down the french wail. 13. Encase all water lines within 10' of drair=ieid 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 he down-slope edge of the drainfeld and reserve area 16. Have the septic tank and pump chamber pumped or inspected every 3 to 5 years. 17. No vehicular traffic over drainfeid area 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. . 1 rasrhole lids had access, sammoling or-inspector ports rust have locking covers and be located at round level. 22. 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 punt to prevent siphoning. 23. All ttanspor.lines under driveways or parking areas must be encased to prevent crushing. 24. Homeowner is responsible for all property lines. k2ac12