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HomeMy WebLinkAboutSWG2025-00268 - SWG Design - 11/13/2025 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: SWG2025-00268 COO APPLICANT BOELK ET AL JOSHUA A Phone: 1.360.490.9644 Address: DONALD A BOELK SHELTON, WA 98584 OWNER BOELK ET AL JOSHUA A Phone: 1.360.490.9644 Address: DONALD A BOELK SHELTON, WA 98584 SEPTIC DESIGNER CINDY WAITE* Phone: 360-701-0205 Address: 80 E PICKERING LANE SHELTON, WA 98584 Site Address: 1559 SE DICKINSON AVE Primary Parcel Number: 320291100140 Permit Description: Upgrade 5bd pressure trench for main house and possible future ADU Permit Submitted Date: 07/07/2025 Permit Issued Date: 11/13/2025 Issued By: Rhonda Thompson Current Permit Fees Paid: $990.00 (additional fees may be required upon installation of system). Permit Expiration Date: 08/07/2028 (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. OFFICIAL USE ONLY glIM: ,' MASON COUNTY DATE RECEIVED: '1 --,� _ apa C N AMOUNT RECEIVED: RECEIVEDSY: L`f, Public Health & Human Services a5 j W cn Environmental Health 360-427-9670,ext.400 or 360-275-4467,ext.400 /' - 0 415 N.6th Street - Shelton,WA 98584 S W G 5 —n o l r�C O 73 Z to ON—SITE SEWAGE SYSTEM APPLICATION D 3 CI APPLICANT PHONE m ITI JOSH BOELK 360-463-6005 z c MAILING ADDRESS-STREET.CITY,STATE.ZIP CODE M 1559 DICKINSON AVE SHELTON WA 98/584 m xi SITE ADDRESS-STREET,CITY,ZIP CODE 1559 DICKINSON AVE SHELTON WA 98584 I (4 NAME OF DESIGNER PHONE I N CINDY WAITE 360-701-0205 NAME OF INSTALLER PHONE v I CD PERMIT TYPE(select one) DRINKING WATER SOURCE - I N It7 RESIDENTIAL OSS h COMMUNITY OSS fI COMMERCIAL OSS 1l PRIVATE INDIVIDUAL WELL V-PRIVATE TWO-PARTY WELL Z I co TYPE OF WORK(select one) Q PUBLIC WATER SYSTEM 1 WI NEW CONSTRUCTION/UPGRADES l REPAIR/REPLACEMENT OTHER DETAILS(select all that apply) ❑ TABLE X REPAIR I —a. SUBMITTALS 0 SURFACING SEWAGE 0 EXISTING FAILURE 0 SHORELINE CO M c DESIGN FORM(REQUIRED) 1 1 SEPTIC DESIGN(REQUIRED) BEDROOMS LOT SIIZE WAS LOT CREATED AFTER4.'1/2025? 5- I — 6 WAIVER(S)(IF APPLICABLE) 5 3281X26 ❑ YES Q NO I T I DIRECTIONS TO SITE AND SITE CONDITIONS.(ex locked gate) G SOUTH ON OLYMPIC HIGHWAY S, TURN LEFT ONTO CASCADE AVE, TURN RIGHT I O ONTO MASON ST, TURN LEFT ONTO DICKINSON, PARCEL IS ON THE RIGHT SIDE 15 I OF DICKINSON AVE. - I -I' SITE MUST BE FLAGGED FROM MAIN ROAD AND TEST HOLES MUST BE FLAGGED WITH TEST HOLE NUMBERS. I CD OFFICIAL USE ONLY BELOWTHIS LINE UPGRADE/FAILURE SOURCE(for reporting purposes) ❑VOLUNTARY ❑MAINTENANCE/PUMPING ❑BUILDING PERMIT ❑HOME SALE ❑COMPLAINT ❑OTHER: INSPECTOR SOIL LOGS COMMENTS/CONDITIONS Z : 6 - 36 ESL \ (4(2-" 104 %MN r-0 � 1.-k\S- / O., i (to „4_,A.9. t, Gis L___ a L r-e, ,) 2C 4- .-\-i-\\ SOIL CODES: RECORD DRAWING AND INSTALLATION REPORT V=VERY G=GRAVELLY S=SAND L=LOAM Si=SILT C=CLAY E=EXTREMELY R=ROOTS REQUIRED FOR FINAL APPROVAL INSPECTOR SIGNATURE DATE APPLICATION EXPIRATION DATE APPLICATION APPROVED!ISSUED BY DATE \PCI\zinekfin ¶7I7, c E-7 ! - t t 113IZ- THIS 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: 3 2 0 2 9 — 1 1 — 0 0 1 4 0 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. 0 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 2025-00266 Designer's Name: CINDY E WAITE Applicant's Name: JOSH BOELK Designer's Phone Number: 360-701-0205 Mailing Address: 1559 DICKINSON AVE Designer's Address: 80 E PICKERING LANE SHELTON WA 98584 SHELTON WA 98584 City State Zip City State Zip DESIGN PARAMETERS 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 ('Pressure NC 0 Bed 0 Sub Surface Drip Septic Tank/Drainfield Specifications Laterals Number of Bedrooms 5 Schedule/Class SCHEDULE 40 Daily Flow: Operating Capacity 450 gpd Length 37.5 ft Daily Flow: Design Flow 600 gpd Diameter 1.25 in Septic Tank Capacity(working) 1500+EXISTING 1200 gal Number 9 Receiving Soil Type(1-6) 4 Separation \; S D.L. ft Receiving Soil Appl. Rate .6 gpd/ft2 - ; .Orifices Required Primary Area 1000 ft2 Total Number of Orific '. 72 Designed Primary Area 1012 ft2 Diameter }S • 3/16 in Designed Reserve Area 1000 ft2 Spacing . - ccqq • '60 in Trench/Bed Width 3 ft l`a i NI•; Trench/Bed Length 337.5 ft Schedule/Clas REDUCE 40 EXPIRES OSt Elevation Measurements Length 40 &100 ft Original Drainfield Area Slope <1 % Diameter 2 in New Slope, If Altered % 'Preferred manifold configuration used? lit Yes 0 No Depth of Excavation Up-slope 6 in Transport Pipe from Original Grade Down-slope 6 in Schedule/Class SCHEDULE 40 Designed Vertical Separation 24 in Length 40 AND 100' ft Gravelless Chambers Required? 0 Yes 0 No 0 Optional Diameter 2 in Pump Required? 66 Yes 0 No Dosing and Pump Chamber Pump/Siphon Specifications Number of doses/day 6 Diff. in Elevation Between Pump& Uppermost Orifice 6 ft Dose quantity 75 gal Drainfield Squirt Height/Selected Residual(head) 2 ft Chamber Capacity(flood) 1500 gal Uppermost Orifice lie Higher 0 Lower than Pump Shutoff Pump controls: Please check those required. Capacity @ Total Pressure Head 42.48 gpm Ii 'Timer frElapse Meter [it Event Counter Calculated Total Pressure Head 9.186 ft If Timer: Pump on ,Pump off Comments _CD�ITACT DESIGNER PRIOR INSTALL AND BACKFI_Ll SYSTEM. FOLLOW ITEM#1 AND#20 ON PAGE 12. EXISTING TANKS TO BE RETROFITT D TER, CONCRET TANKS REQUIRED, GRAVEL BASE DRAINFIELD REQUIRED, !_ PUMP CONTROLS TO BE SET AT TIME OF INSTALLATION. PUMP TO BE SET AT 450 GPD. DESIGN FORM—PAGE TWO Assessor's Parcel Number:l 31 2 ; 0121 9! 11 11 01 01 1 1410i Permit Number: SWG DESIGN CHECKLISTS Scaled Plot Plan Scaled Layout Sketch Cross-Section Sketch cati Test hole locations lie Drainfield orientation and layout Reference depth from original grade: ft Soil logs lif Trench/bed dimensions and Septic tank el Property lines critical distances within layout V Drainfield cover 1 Existing and proposed wells lit D-Box/Valve box locations Reference depth from original grade within 100 ft of property if Septic tank/pump chamber and restrictive strata: V Measurements to cuts, banks, and locations gr Laterals, trench/bed, top and surface water and critical areas of Observation port location bottom 9f Location and orientation of Clean-out location ❑ Curtain drain collector curtain drain and all absorption ill Manifold placement 0 Sand augmentation components it Orifice placement Other cross-section detail: fir Location and dimension ofIt Observation ports/clean-outs primary system and reserve area Lateral placement with distance to edge of bed Other Information gi Buildings fit Audible/visual alarm referenced Yes No 421 Direction of slope indicator gr Scale of drawing shown on scale i 0 Design staked out gr Waterlines bar 0 0 Recorded Notices attached V Roads, easements, driveways, V Elevation benchmark and relative 0 0 Waiver(s)attached parking elevations of system components ' 0 Pump curve attached it North arrow and scale drawing 0 ❑ Evaluation of failure shown on scale bar Non-residential justification ❑ ❑ Waste strength ❑ ❑ Flow DESIGN APPROVAL The undersigned designer must be no •' d by ' staller at time of installation Yes 0 No • llJ 121I 7412_ Signatu of Designer Date The undersigned has reviewed tljis design on behalf of Mason County Public Health and determined it to be in compliance with state and local on-site regulations: 0155 )2¶ Environmental Heath 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: V J'7/2--& ✓ 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. 2II/ An Installation Fee is required. This form may be scanned and available for public view on the Mason County Web site. Revised: 6/11/2025 Co O -1 -Imco g (Q -o - C j 1"4 isni rzi 0 it.,7,- 31 cn ._-_,... K . - --_ .. .. d a-v - 'U s M ID � . r x = X • "mil ` , N . ` —3-) 4,,k) .1 i „-----,i. .).)) tc ,R\ .c.iii4,6),N,...,, to rr, s a : ___ i, ,:k ii - :- ‘1 G \ .. ....4 i ;41 % ..4 IN . 1\-...) ' .4. A g V VI 1- Q S fi err..--- �•-- o ti Pam ; ofo, lf> 4 ,�L �? t3 .- i.. ...,,..... a c). �' Q o .. .., 1 ` PPROVED ,' w ua NOV 1 3 2025 V1 h i MAS'N COUNTY ENVIRONMENTAL HEALTH ` Lr RET --'-----a--------------'\\H .,..) N... \( ._) ail - .k...-k / .1 k E..) 1 W ' � 6e Lei �JIIt'(r_ _!.'�i.0, . ,Oia'lui �jW N 71 �t/f�w #" /, r i-�? -\-. e °11=11 11 73,711<`-xi 1 - 1,3.0).m' . r\ t., ii7.2) IR ,111. CD :=•!2) ialta = x 5- ft-e ,>y 4! tom ailI < 422 1 N Fe --z . \ 1 1 t o I 8 + ORIFICE SPACING 5 Lateral# Length Length Orifice # Distance from Distance from end Length# # (Feet) (Inches) Spacing" Orifices 1 feeder line of end of lateral 1 37.5 450 60 8 1 1.5 37.5 2 37.5 450 60 8 1 1.5 37.5 3 37.5 450 60 8 1 1.5 37.5 4 37.5 450 60 8 1 1.5 37.5 5 37.5 450 60 8 1_ 1.5 37.5 6 37.5 450 60 8 1 1.5 37.5 7 37.5 450 60 8, 1 1.5 37.5 8 37.5 450 60 8 1 1.5 37.5 9 37.5 450 60 8 1 1.5 37.5 337.5 72 337.5 TRANS LENGTH 40 GPM 4148 _ K (2"SCHEDULEN 40) 24.5 FRICTION LOSS 1:1876 Squirt 2 Elevation difference 6 TDH 9.186176 TRENCHES NZ 4EEPER THAN: UPSLOPE ofpit DOWNSLOPE " .m L s�0:1/4 SAP: TRENCH CROSS SECTION . v 51 8 `,9.:'te 4' I E. A 1.�Y; r LIC SED Oil .I �, LxPaiLS 05,10, 6 , C /-e APPROVED 4- rr l i-,,, ',s,„ NOV 1 3 2U25 1 - o,,t i i,vi gLajc, MASON COUNTY ENVIRONMENTAL HEALTH I ---- RET - ;V V-t°iti I C 7, rivoulia., 1 i .\ \1 , RUA) "A l ‘41#04) a-µ i AS/F s'.%Ics di Ike.A 1-..mod,, j AAP Ot'Qr'ajdp sai I, S;edi. jai P,,. - , . DRAINFIELD LAYOUT z '0 • s .12_ VP r f'2, Z0 :\ /A! . / •c, I— Z (' �/- / C 4- �^-7,JL y ePoF in 9 oh_ Z w �+ s �. . .5 -.__z 1 2 �� 5�Onn1 'h.— 02 CINDY E W 72 : LICENSED DES 17_' i\r i,! os'u Z WI.. ,Y�' •E °/ 2v/ i 30 ' 1 311i i ) / ,, . /U' r ==='— ®.-X1=CLEANOUT/OBS PORTS `i) t ru pi i you 16f APPROVED X2=D BOX/VALVE BOj) X3=Check Valves 0) IA' v G Ive gal NOV 1 3 2025 X4=Flow Control'Valves(24) ,',u v o,/,,,ilv, MASON COUNTY ENVIRONMENTAL HEALTH X5=Soil Logs G,,, P/01-; „gym, RET ' l)I Valoe RDA i • APPROVED - [. NOV 1 3 2025 -. �'4t { MASON COUNTY ENV1RON.YEN TA.L HPALTH 'r ' al I i ' �� • P, T % c• ' \ 1\'W Fit 510 . 8 i I. • 1�• 2,5 i c' INDY E WAITE• ,D 1, qv . i RISER WITH LOCKING LID P', . LICENSED DESIGNER „ 1 TO DRAINIIELD •���:► ���s�a� a �sw�c',i,`y�f � • PRESSUREI.STERALS Lu'1f3S Ob.10' V A • T T " rr • rlre , _. _. ►o =r FLOW CONTROL VALVE 6... ill SLOTS A3 , : _� ' �—' FLAP CHECK > y� ,'•�� VALVE ! ` / ;',(,/i't ' -: , • I":.• *V o . .:./,, . .. -_ -- , SECTION A-A WAMHCD ROOK DRAIN SUMP TRANSPORT PIPS PROM PUMP OHAMD R . P. i L. 6 _ ' UJi 01 :..• . • - L c c 1 O L •' ,.i... ► • • r . -. • l _ ;. ►... �O`1\ • 42- 4 Idly 4 a v,�j�tii, , ../ \,vtg 1,2,4 (fa) ut yCesr 510t 7,ti .171 ok' DITE 0--- �,�,V- LIIGNER _n � . tv � L:.;'u:LS uy•g. THREADED CAP OR PLUG P e.i- cram(-i• ---- 8"PVC -- —- LAST ORIFICE;WITH ORIFICE SHIELDS IF --: ORIFICE ORIENTATION IS BACKFILL `I/ ` UPWARD MATERIAL \\ \QO•, ) \ . Vr�lO o �' • QI •�• . p \\\/ 00 001 'FRS go �— PRESSURE LATERAL PVC HOSE OR /\\ 4 O.00 0 gQo AS SPECIFIED LONG SWEEP \\/ �o P o 0 I\ ELBOW / \ / /\` /\\‘ DRAIN ROCK; 6"MIN. �� �� -�N\\:\ /, BELOW PIPE UNDISTURBED SOIL _ / -- -.- ---- 6"PVC WITH DRAIN HOLES; EXTEND TO BOTTOM OF GRAVEL TO MONITOR PONDING - INFILTRATIVE SURFACE MONITORING/CLEANOUT PORT (EXAMPLE)APPROVED • �� �� NOV 13 2025 MASON COUNTY ENVIRONMENTAL HEALTH RET /.5-- 6 4,. S o& -'Q.,‘ swum LID MTN OAS MOW'SAL Se ,.,m AMISS . an """' ' Rolm I t _ iiiij 1 SCUM 101.0ATINOIIAT rniiI • �1. 1 1 NA hil 111 II I II I..in .•fp, !to 1 F F B 19 2025 fey �, ,7 b ",',C���tirti E4i.4�•NMENT LHEALTH .�.� �� .... ....�. . RET MTH OAS TIMM WI. t .\- .I'dj:;11 TIMMONS MU...._....../.1100.11i M 6 i 2.4' liill i Mal Santa TANN �� rigTOORAMlOiLD 1OT ST011Ar IKON INA7� LEVEL LL VweOII ar NORM.TOM OW MAIL WOWINGOWOWING VOLUM NORgri �f - at Prat T SISIONINT SHROUD o IILO II 1 ODOII OIYALVII+ il I MOUNTS III tigrallik IMISMMIONNA NOV 13 205 moemey I aM 6'I MASON COUNTY ENVIRON .) RET M �ENTAL H *ASN� , . v q ei 00 du PO rr+ I I , . ! i - . . • IibJj PumpsAi '4-L. , 1 Pump Specifications 0 i 280 Series 1 /2 hp -� Submersible Effluent Pump APPROVE® LITERS PER MINUTE NOV , 3 2025 0 50 100 150 200 M4�N COUNTY EN HEALTH 40 I I i + 12 REr t� " 30 .ar• p1, s • ike,0 ,,3',-� Sh,. ,� e, n N 4� - y'.. . ::. , . CMDY is A4TE\:.�1'ir F ,„• ; LIt NStL DESigNER .i• i.. U. CX'II7LS thug, 2 Z g• 20 6 g x x J J i- H O 0 — 4 Ok:\\/ 41 — 2 0 0 0 10 20 30 40 50 60 70 32 d Z q_ it, 00 , , , GALLONS PER MINUTE iihigii 280_PI R010/7/2015 °Copyright 2015 Liberty Pumps Inc. All rights reserved. Specifications subject to change without notice. Fo 6(It. SG,J 6-- 1 v2.,s= co 2 C r PU1flps Installation Notes APpRO�/� NO V 13 2025 Pressure Distribution System: MASON COUNTY ENV1RON►�ENTAL Nt:A 32029-11-00140 1559 SE Dickinson RFT LTN Prepared site plan is not a survey. It's the owner's responsibility to verify property lines, utility lines (water, sewer, power, phone and gas) prior to installation. There is an existing septic system that serves the existing residence. The new residence will be located over the existing drainfield. We are installing a drainfield to accommodate five(5) bedrooms for the existing two bedroom and the proposed three bedroom. We will use the existing tankage from the existing system and pump effluents to the proposed 1500 gallon pump tank. 2. Concrete tanks required 3. Gravel base drainfield required 4. Timer to be set at 450 GPD 5. At waterline and sewage transport line crossing, encase both lines out ten feet from thecrossing. Keep wheeled vehicles off the drainfield area before, during and after installation. Tracked equipment only 6. All ground, surface water and roof drains must be diverted away from the septic tanks and drainfield. Ensure the final grade slopes away from these areas and water doesn't collect on or around them. Use swales, berms, catch basin and tight lines, curtain drains, etc. to divert all waters. 7. Curtain drains can be no closer than 10' upgradient and 30' down gradient of the drainfield 8. Exposed restrictive layers, cuts, banks, etc. can be no closer than 50' downhill from the drainfield. 9. Install access risers on the septic tanks, valve box and ends of laterals. 10. Make sure septic tank risers are epoxied or caulked to cast in riser rings on tank. 11. Lids must form a water and gas tight seal with the access risers. 12. Install effluent filter specified in this design at the septic tank outlet. 13. This system must be installed by a Thurston County Certified installer. 14. Deviation from this design without prior approval from the designer and Thurston County Health Department will make this design null and void. 15. This design was sized per Washington Administrative CodeWAC246-272A-0230. The operating capacity is based on 45 gallons per day per capita with two persons per bedroom. The minimum design flow per bedroom per day is the operating capacity of ninety gallons multiplied by 1.33. This results in a minimum design flow of one hundred twenty gallons perlday. This creates a surge factor of 33% but anticipated flow is ninety gallons per bedroom per day. 16. Install laterals with contour of the ground. 17. Install trench bottoms level and always maintain a mini six inches into native soil.. 18. Install threaded clean outs at the ends of all laterals s m end to within six 11 inches of finish grade and be in a valve box a h10 \ 19. Install audio/visual alarm. v= _` ,'y y �. l '� Frye o= CI WAIT WAITESt�I R� AK. Filter fabric required over drain rock prior to backfilling. If the drain rock extends above the original grade, run the filter fabric at least 2 inches down the trench wall into original grade. System Owner Responsibilities: 1. Operation and Maintenance is required by Washington State Department of Health and Thurston County Health Department. 2. The septic tank and pump tank should be pumped every three to five years or as needed. 3. System owners are responsible for having maintenance performed annually. 4. System owners are responsible for responding to septic issues in a timely manner. 5. System owners shall not at any time change or alter settings in the control box. 6. Keep the flow of sewage at or below the approved design operating capacity. 7. Keep waste strength at residential waste strength parameters. 8. Spread loads of laundry through the week. 9. Do not use excessive bleach or detergents with added whiteners. 10. Do not shower, do laundry and dishwasher at the same time 11. Antibiotics can kill or impair the biological process in the septic tank. 12. Leaky plumbing can hydraulic overload your on-site septic system. APPROVED � . NOV 1 3 2025 e ' 1 y� C�W MASON COUNTY ENVIRONMENTAL H o? AIT REt �F• .�o • E�a� • `111