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HomeMy WebLinkAboutSWG2023-00011 - SWG Application / Design - 1/18/2023 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,EXT 400 FAX:360-427-7787 On-Site Sewage System Permit: SWG2023-00011 APPLICANT DAVID KOBERSTEIN Phone: Address: 8815 71st Ave NW GIG HARBOR, WA 98332 SEPTIC DESIGNER PAULA JOHNSON -Arrow Septic Phone: 360-898-2255 Designs Inc. Address: 171 E VUECREST DRIVE UNION, WA 98592 SEPTIC INSTALLER SHUMAKER CONSTRUCTION Phone: 360-377-2425 Address: PO BOX 3378 BELFAIR, WA 98528 Site Address: NE Tahuya Blacksmith Rd Primary Parcel Number: 223305000205 Permit Description: New SFR -2BR Pressure Permit Submitted Date: 01/18/2023 Permit Issued Date: 02/03/2023 Issued By: Jeff Wilmoth Current Permit Fees Paid: $525.00 (additional fees may be required upon installation of system). Permit Expiration Date: 01/23/2026 (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/onsiteloss-inspection-request.php or call: 360-427-9670, extension 400. A N 1 8 2023 U rJ OFFICIAL USE ONLY MASON COgiilY JA E _ sD. (n D COMMUNITY SERVICES AMOUNT0EC VE 5 RECEIVED BY CO rn 0 Public Health(Community Health/Environmental Health) M gj 360-,74571 K 400 or 360475-4467,ext.400 /� /�/� 415\.6thS'teec-Sheho..'A'A 9858: CVVG �D' t" /, — 000\\ o 2 �J a�/. J Z cn ON-SITE SEWAGE SYSTEM APPLICATION D I Po .F=_C.,,.- I a rn rn David Koberstein (253)225-0025 c MAILING ADDRESS-STREET,CITY.STATE,ZIP CODE I E 8815cSS 71s- �EET.Ave NWCITY ZIPDE Gig Harbor WA 98332 co m NE Tahuya Blacksmith Rd Tahuya WA 98588 a I N IAMAE OF DESIGNER —_-- P ^lE CD I N) Arrow Septic Designs (360)898-2255 NAME OF INSTALLER PHONE C0) Shumaker Construction (360)275-4855 0 PERMIT TYPE(select one) F. 0 DRINKING WATER SOURCE q' - E ..RESIDENTIAL OSS 1 l COMMUNITY OSS [1 COMMERCIAL OSS 1.:PRIVATE INDIVIDUAL WELL pt1:PRIVATE TWO-PARTY WELL Z I TYPE OF WORK(select one) Cr PUBLIC WATER SYSTEM ff NEW CONSTRUCTION/UPGRADES REPAIR/REPLACEMENT OTHER DETAILS(select all thatappty) ❑TABLE IX REPAIR I CJl SUBMITTALS 0 SURFACING SEWAGE 0 EXISTING FAILURE Er SHORELINE CD DESIGN FORM(REQUIRED) SEPTIC DESIGN(REQUIRED) BEDROOMS p p LOT SIZE I C� r- O 5 WAIVER(S)(IFAPPLICABLE) 2 BR .24 acres C) I DIRECTIONS TO SITE AND SITE CONDITIONS'Or locked gate,: — I O Go out Hwy 3 and turn left after Dairy Queen onto WA-300 W. Turn (L) to stay on WA-300 I o W/NE Northshore Rd. Turn (R) onto NE Belfair Tahuya Rd. Turn (R) onto NE Tahuya 5, Iry Blacksmith Rd. Turn (R) onto NE Lake Dr. Turn (R) past red metal gate which is the last driveway on (R) before stop sign. This is a private driveway access to lakefront lots. Yellow o sign: "<--205/204—>" Test holes on upland side of access road. o SITE MUST BE FLAGGED FROM MAIN ROAD AND TEST HOLES MUST BE FLAGGED WITH TEST HOLE NUMBERS. Cn I 01 OFFICIAL USE ONLY BELOW THIS LINE UPGRADE I FAILURE SOURCE(for repotung purposes) 0 VOLUNTARY 0 MAINTENANCE/PUMPING ❑BUILDING PERMIT 0 HOME SALE ❑COMPLAINT ❑OTHER. INSPECTOR SOIL LOGS COMMENTS r CONDITIONS 7 8 y ^V''" .of ti°(2' 51 rp 4r --1 RECORD DRAWING AND INSTALLATION REPORT SOIL CODES: V=VERY G=GRAVELLY S=SAND L=LOAM Sr=SILT C=CLAY E=EXTREMELY R=ROOTS REQUIRED FOR FINAL APPROVAL. #i, OR(SIGNATURE DATE APPLICATION EXPIRATION DATE AP ■ TION APP1ROVED/ISSUED BY GATE - �' Y1 �- -�� �'2 `�� •. tJk . j.4 THI.Fa. MAY BE SCANNED AND AVAILABLE FOR PUBLIC VIEW ON THE MASON COUNTY WEBSITE f REVISED 12.7:2C5 ' DESIGN FORM—PAGE ONE Assessor's Parcel Number: 2 2 3 3 0 — 5 0 — 0 0 2 0 5 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' .V 17'. Permit Number: SWG 3-OOO lk,- Designer's Name: Arrow Septic Designs, Inc Applicant's Name: David Koberstein �',,rj(if; D t/ r`y (360)898-2255 Mailing Address: 8815 71st Ave NW I letter's Address: 171 E Vuecrest Dr Gig Harbor WA 98332 j` JAN 18 2023 Union, WA 98592 City State Zip Cit _ �='' a - ., .__.. .. .DE J ' -..` , . em .... . - State Zip Treatment Device ❑Glendon Biofilter 0 Sand Filter 0 Mound 0 Sand Lined Drainfield 0 Recirculating Filter.Type: ❑Aerobic Unit Make/Model 0 Disinfection Unit Make/Model Other: Drainfield Type ❑Gravity gi Pressure NiTrench 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 3 Receiving Soil Type(1-6) 3 Separation 4.5 min ft Receiving Soil Appl. Rate 0.8 gpd/ft` Orifices Required Primary Area 300 ft2 Total Number of Orifices 21 Designed Primary Area 301.5 ft2 Diameter 3/16 in Designed Reserve Area 301.5 ft'- Spacing 60 in Trench/Bed Width 3 ft Manifold Trench/Bed Length 100.5 ft Schedule/Class 40 Elevation Measurements Length header ft Original Drainfield Area Slope 30 % Diameter 1.25 in New Slope. If Altered 30 % Preferred manifold configuration used? Cif Yes 0 No Depth of Excavation Up-slope 30 in Transport Pipe from Original Grade Down-slope 20 in Schedule/Class 40 Designed Vertical Separation 26+ in Length 170 ft Gravelless Chambers Required? 0 Yes ❑No It 'Optional Diameter 2 in Pump Required? lif Yes 0 No Dosing and Pump Chamber Pump/Siphon Specifications Number of doses/day 4 Diff.in Elevation Between Pump&Uppermost Orifice_45 ft Dose quantity 60 gal Drainfield Squirt Height/Selected Residual(head) 2 ft Chamber Capacity(flood) 1,000 gal Uppermost Orifice rif Higher 0 Lower than Pump Shutoff Pump controls:Please check those required. Capacity @ Total Pressure Head 12.39 gpm liffimer CiElapse Meter li f Event Counter 47.90 ft If Timer: 3 min Pump off 6 hr Calculated Total Pressure Head . pP Comments _ Q V E `ff ." FEB 0 3 2023 ' Y ENVIRONMENTAL HEALTH DESIGN FORM—PAGE TWO Assessor's Parcel Number:2 2 3 3 0 — 5 0 -- 0 0 2 0 5 Permit Number: SWG DESIGN CHECKLISTS Scaled Plot Plan Scaled Layout Sketch Cross-Section Sketch liti Test hole locations Iil Drainfield orientation and layout Reference depth from original grade: lil Soil logs Eli Trench/bed dimensions and II Septic tank 6d Property lines critical distances within layout gf Drainfield cover lif D-Box/Valve box locations Eg Existing and proposed wells Reference depth from original grade within 100 ft of property Septic tank/pump chamber and restrictive strata: rat Measurements to cuts,banks,and locations 12 Laterals,trench/bed,top and surface water and critical areas 21 Observation port location bottom 121 Location and orientation of II Clean-out location Elf Curtain drain collector curtain drain and all absorption et Manifold placement 0 Sand augmentation components lirOrifice placement Other cross-section detail: Fil Location and dimension of lil Lateral placement with distance l Observation ports/clean-outs primary system and reserve area to edge of bed Other Information Ed Buildings •`,•. Audible/visu•�'� referenced Yes No tit Direction of slope indicator on scale ❑ Design staked out Ed Scale of dr. :;:: .:i, El Waterlines bar 0,e j, 0 l�Recorded Notices attached Eli Roads,easements,driveways, lit,.. s %I•,' ��A ❑ Ili Waiver(s)attached parking oo k�, Gd ❑ Pump curve attached Fii North arrow and scale drawing r _ �u; g 0 Evaluation of failure shown on scale bar -�( 51003.49 �� Non-residential justification 7 PAULA JOY JOHNSON ' � 0 Waste strength "Ltd 8015l~SiGligti ExPis ` 0 Iil Flow DESIGN APPROVAL The undersigned designer must be n • ed by• stalle at time of installation I6 Yes 0 No (fin I- 13- 23 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- ' regulations: Envir n ealth Specialis�l - .2- — -;--23 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: I—) 3 J. -6. 1 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 1 Arrow Septic Designs 171 E.Vuecrest Dr. Union, WA 98592 January 12,2023 Mason County Department of Health Services 415N6thSt Shelton, WA 98584 RE: David Koberstein Property(Parcel#22330-50-00205) Septic Replacement/Upgrade Dear Inspector: Attached is a replacement/upgrade septic design for a property located at 18XX NE Tahuya Blacksmith Rd, Tahuya,WA 98588. The existing gravity deep-trench septic was installed in 1987. The septic was installed to be shared by Lots 204&205. The tank is installed at a low elevation on Lot 204 and has standing water on top of it even in the dry season. The drainfield is not functioning. Records indicate the existing system consists of a 1,150-gallon septic tank followed by approx.40 lineal feet of gravity deep-trench drainfield on the opposite side of the access easement road. The existing tank is to be decommissioned or removed and the old drainfield is to be abandoned. Lots 204&205 are now owned by separate owners. Mark Linden owns Lot 204 and David Koberstein owns Lot 205. They would like to have their own independent septic systems on their own properties. Both septic designs are being submitted at the same time. Each proposed 2-bedroom replacement system will include a new 1,000-gallon 2-compartment septic tank with effluent filter followed by a 1,000-gallon pump chamber. The proposed replacement drainfield is a 300 s.f. pressure trench on the hillside on the upper side of the access easement. 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. The proposed septic system is fully compliant with the tanks being over 50 feet from the lake and wells and the drainfield being over 100 feet to the lake and wells. We have also designated a full reserve drainfield area. The property owner's contact information is as follows: David Koberstein 8815 71' Ave NW Gig Harbor,WA 98332 (253)225-0025 If you need further information,please contact my office at(360) 898-2255. Sincerely, PPROV .oi; �� FEB 0 3 2023 , :.• g•• �(} MASON COUNTY ENVIRONMENTAL HEALTH t". • �" •�1�1` 1 itkg�R Treatment System Designer EXPIRES 1 24-10 2�,.�1�,2,0867 MAsON C0 WA R F.o212 os, 7 vol �7 P& £ 2 I■■iIWui.iiuiiiji - A m; Sm ig z 0 '°gikm Z m iiII' i:i m11 m$! ° s $ D D to 3..c% 11°A 1 I -,`fix _ }` *" -a i ccn O x ri"i4 Ro r tf $� $ R1 Z �$$> g = to Hai 7 YQ, • a o O Nw 4g ' y Z per+ �s C V.. T -I °n I. 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PVC from Bottom of Trench o, " e a Mork ends with Reber. � �t t .1 ti} risked Grade Removable Cap shell be i• :�.r• To Finished Grade• . _ 0 . + Regrced a+ the End of Each LatGd" Installed on Observation Port • Anchor ;.`,..�C t;� iy�; j C. On Bottom with ed T� s.^" s 1 o 3 3.�9 '��� r n I Sept c LJ J l g n as 3 Total RefNired in Syster,. 0� PA.ULA JOY JOHNSON A r r • 0 Y v usicjvEa_ ) 6 9 8- 2 cJ� EXPIRES 69„ ; C 3 6 0 1 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 Total Lateral Length 100.5 Total#Orifices 21 GPM = 12.39 Dynamic Head Calculations Selected residual pressure: 2 ft. Length (Ft.) #Orifices Transport Pipe 170 21 0.52 ft. Feeder Total Lateral Line Length Lateral#1 33.5 2 35.5 7 0.10 ft. Lateral#2 33.5 11 44.5 7 0.13 ft. Lateral#3 33.5 20 53.5 7 0.15 ft. Total Elevation Lift A. 45.00 ft. ,0,l Total Dynamic Head l .fa 47.90 ft. L, m z • • x. 0;: 5700349 PAULA JOY JOHNSON . ' 1 1 I . A p h A 17 0 k r E i i•-: . ' so Ee p 3 N�ouNr'ENV n OZ3 Jeh/ M�`^atL HE ALry ormomillnir 161, 1631-- Flow-Mate av etv:Nale - p Heavy duty construction with oversized bearings and a balanced - r I bronze,non-cloggingvorteximpellerallow these pumps to stand up to the highest heads and maximum flows.They are wellsuited to applications with low pressure pipe(LPP)and enhanced flow STEP systems.Using Zoeller's cool run design,we added fins to z these pumps,lowering operating temperatures. The corrosion- resistant,powder coated epoxy finish and hermetically sealed, oil-filled6 motor add up to a long-lasting,trouble-free product. - e r v�� ' ' C rn w Q �' 1 o 3 m APPLICATIONS: "11 • Onsite or septic applications r • Enhanced flow STEP systems C • Commercial dewatering m • Sump/dewatering Z .I SPECIFICATIONS: hid • 1-1/2"NPT discharge(available with 2"or 3"NPT bolt-on flange) !, • 1/2 HP through 1 HP /r PR ° • Available in automatic or nonautomatic " • 0 0 V E .„ r,,, • 3/4"(19 mm)spherical solids capacity with bronze vortex impeller FEB • Hazardous location/explosion-proof version available �!C 0 2 •'' ��-1qs 3 �Q r aL/nrr 3 ' (automatic and nonautomatic) rEiv1 n, �,�E • Double shaft seal versions available for added protection virT �� Jew NTk HEAL ty • Thermally protected motor For more information,see Technical Data Sheet FM2785. w ,I— PUMP PERFORMANCE CURVE 1111 _ ►. MODELS 161/4161 - 163/4163-165/4165 90 24- 80 165/4165 p 70 60 a Ii 16— 50 a p 12- 40 30 8- 20 161/4161 4- 10 l 0 10 20 30 40 50 60 70 80 90 100 110 GALLONS LITERS 0 160 240 320 400 Explosion-proof models available FLOW PER MINUTE 00597:A ©All rights reserved. ZOELLER PUMP CO. 1502-778-2731 1800-928-7867 I zoellerpumps.com 9 -/ 0 • — ----- -- • SECORED LW WITH GAS ulna SEAL 1 \ ,•• 1 • 24' \DUMMER. ACCESS WISER t•• --- - I . . • , ,....4...!=7.7• i 1.; f:... ...... ........1..mh11 . 2 . 1 i • 1 i I i R.OATEriG NAT i 1 ! I 1 I i SOURCE i• i -.... ! 1 I 1 I i • i I i ; ; , L. EFFLUENT t 1 - ,...-. i , i i ! • F/LTER . SEDDIB1TS 1 I . a • 11 1 , • 'Ai: MI_ 8 n • u 3 2023 ,.., f.:3"; . II I . SEPTIC TAM MIMIC-AO 4180/11-CotiN TY EniviRr) t- --': ..,., ich,, .„. .. . •ji9 40 `-`v I SECURED LID WI TN 67,45 Trani SEAL — THREADED moon . I I 4"DIAMETM N i i 1 i . SEVICE I i FINISH GRADE - N\\,,. ,..001{-1 VALVE* 1 MOM sEPT1C TANK •,:,; M• -= — TO DRAZNICELD I I . 71 ' I .. -t i 1 i: 7 I I 1 --7- 04ERGES4CY STORAGE 1 . I i 1 11 14: 1 i i Ann SIPHON fiZGN WATER ALARM LEVEL ; 1 lk T I• VALVE* . I ! i I, 1 NORMAL TDIER OFF LEVEL i I WOWING VOUR4E ii÷--71.---i- - nampecewr ,.......4_ I ;! i i ,I I FLOAT STEM ssi FM R.DAT ENCLOSED PUMP . Mown= I "--- .,.4., __.' , , CHECK VALVE*I SEDDIENT SHROUD* t 1 • I St"i --; -; ------ 1 • I I - 1 i SEDDEEKTs : '.-. --,--,,J t 4 -.:1: ., SONNOSESLE . 11 I - MEMPAWAlgaiat I cENTSIDuGAL PutitP I 1 ! rmincAta I I 1 =As now .1 v;Note: -- Sect,.Tanks must meet s-,--,....ridard.s required by WAC chapter 246-272 C FIGURE 2 • i . •, 1 and manufacvarer must be on the Dept of Health list of registered sewage tinks.** ,. . - F9 (8 °f \° • • . r oR,ciNAUFIK GRADE • )14--"----0.L_____Jj t roc e p o aO + 0 1 • ONFlr+unu. 1 I A 0 ip ' I I 10-r OWNH01 1 DR/JNFiQD p O + 18"MNiMUA I DRAIN WIDTH 0 O O O 0 0 I 0 0 FILTER FABRIC OPTIONAL b 0 0 ON SIDES OF GRAVEL 6O i 6ti9L PLASTIC SHEETING "n: v^> + e,(' N° D 00 U OPTIONAL ON Dcxnrrt>tu;bo+k+^^ O ; SIDE OF GAVEL ��0( GRAVEL: i O O GRAVEL GRAVEL 18-24' 7/8 GRAOCK C � RESTRICTIVE ABOVE + 4 DR i PEA GAVEL.ETC. o o�� x-.;.rfr: /,i!��� .0 'r /�JpTCH�12"INTO i.� � � RESTRICTIVE LAYER s /CORRUGATED PIPE PIPE IN BOTTOM OF TRENCH APPROVE • A 4 FEB 0 3 2023 MASON COtf NTY ENVIRONIMENTAL HEAo.I LTH JBW 9 (9-1(---t 0 • / auocu Septic De/sign/3 , ° . wasy INSTALLATION & MAINTENANCE w� }. Pressure Distribution Systems N�f . PAULA JOY 00349 iNSaN ` *MEMO tI GN-Fi ' 1. Install Laterals with contour of the ground. 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. 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. 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. Encase all water lines within 10' of drainfield 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 to 5 years. 17.No vehicular traffic over drainfield 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. 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 a 1/8"hole drilled in the discharge pipe above the pump to prevent siphoning. 23. All transport lines under driveways or parking areas must be encased to prevent crushing. 24. Homeowner is responsible for all property lines. o 'Yd E } ter: FEB 0 3 2023 MASON COUNTY ENVIRONMENTAL HEALTH 10 - � � JBW