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HomeMy WebLinkAboutSWG2026-00142 - SWG Application / Design - 5/26/2026 NiASO N COUNTY 415 N 6TH STREET,SHELTON,WA E 98584 S 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: SWG2026-00142 APPLICANT MPM VENTURE GROUP LLC Phone: 253-225-2808 Address: 110 W K ST, SUITE C SHELTON, WA 98584 SEPTIC DESIGNER CHRIS ELSTROTT* Phone: 360-561-5000 Address: 128 NORTH RIVER STREET MONTESANO, WA 98563 Site Address: E Eagle Point Dr Primary Parcel Number: 421227690093 Permit Description: 4BR sand lined pressure bed Permit Submitted Date: 05/08/2026 Permit Issued Date: 05/26/2026 Issued By: Jeff Wilmoth Current Permit Fees Paid: $845.00 (additional fees may be required upon installation of system). Permit Expiration Date: 05/20/2029 (based on date of inspection) Permit Conditions: I Approval of this septic permit does not approve the building location. Building location is subject to approval from all applicable departments and regulations. 2 Proposed development subject to zoning requirements and approval by the planning department staff per Mason County Title 17. 3 Permit must be installed by a Mason County Certified Installer unless prior written authorization from Mason County is obtained. 4 Drain field installation not to exceed designed upslope and downslope depth specified on design form. 5 Installer is responsible for obtaining Mason County installation approval prior to backfill of system components. 6 Installer is responsible for obtaining Septic Designer/Engineer installation approval prior to backfill of system components. 7 Mason County Asbuilt Form, Record Drawing, and Installation fee must be submitted for final installation approval. 8 Future homesite development may require a geological assessment. 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. OFFICIAL USE ONLY . • • MASON COUNTY DATE RECEIVED: c �� Ci N AMOUNT RECEIVED;Ii RECEIVED BY: Public Health & Human Services 0VI/LIIUG Environmental Health 360-427-9670,ext 400 or 360-275-4467,ext.400 � 0) 415 N.6th Street-Shelton,WA 98584 S V V G _ zi Cl) L8 O X ON-SITE SEWAGE SYSTEM APPLICATION c) APPLICANT PHONE fT1I m MPM Venture Group 253-225-2808 © z MAILING ADDRESS-STREET,CITY,STATE,ZIP CODE r r R 110 W K St., STEC 11 SITE ADDRESS-STREET,CITY,ZIP CODE tqp xxx Eagle Point Drive, Shelton, WA 98584 I -� NAME OF DESIGNER PHONE Chris Elstrott 360-561-5000 1@2 I NAME OF INSTALLER PHONE I Hatten & Sons 360-628-7851 -J _ J D PERMIT TYPE(select one) { DRINKING WATER SOURCE o' I IV ❑ RESIDENTIAL OSS ❑ COMMUNITY OSS ❑COMMERCIAL OSS ❑ PRIVATE INDIVIDUAL WELL ❑ PRIVATE TWO-PARTY WELL ZI I IV TYPE OF WORK(select one) ❑ PUBLIC WATER SYSTEM ❑ NEW CONSTRUCTION I UPGRADES ❑ REPAIR/REPLACEMENT OTHER DETAILS(select all that apply) ❑ TABLE X REPAIR I SUBMITTALS ❑ SURFACING SEWAGE ❑ EXISTING FAILURE ❑SHORELINE Q DESIGN FORM(REQUIRED) IE SEPTIC DESIGN(REQUIRED) BEDROOMS LOT SIZE WAS LOT CREATEDAFTER4/1/2025? WI I O, ❑ WAIVER(S)(IF APPLICABLE) 4 1.27 YES NO O DIRECTIONS TO SITE AND SITE CONDITIONS:(ex.locked gate) Ic o lC --1 iICo SITE MUST BE FLAGGED FROM MAIN ROAD AND TEST HOLES MUST BE FLAGGED WITH TEST HOLE NUMBERS. OFFICIAL USE ONLY BELOWTHIS LINE UPGRADE I FAILURE SOURCE(for reporting purposes) ` ❑VOLUNTARY O MAINTENANCE/PUMPING❑ BUILDINIG PERMIT❑HOME SALE❑COMPLAINT OTHER: INSPECTOR SOIL LOGS COMMENTS!CONDITIONS dot 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. S ECTOR SI NATURE DATE_ APPLICATION EXPIRATION DATE APPLICATION APPROVED!ISSUED RV DATE THIS M MAY BE SCANNED AND AVAILABLE FOR PUBLIC VIEW ON THE MASON COUNTY WEBSITE Revised:01/09/2026 I ! DESIGN FORM—PAGE TWO Assessor's Parcel Number: Z / 12-17 Permit Number: SWG s RESIGN CHECKLISTS SIG Scaled lot Plan Scaled Layout Sketch Cross-Section Sketch, LET hole locations ' Md H amfield orientation and layout Reference depth from original grade: [Y So'"logs fiTrench/bed dimensions and -tic tank D' operty lines 1 critical distances within layout Dainfield cover - sting and proposed wells D-Boxalve box locations P P /V! Reference depth from original grade within 100 ft of property Ly' Septic tank/pump chamber and=aterals, ' strata: Measurements to cuts,banks,and ations trench/bed,top and surf ce water and critical areas �Observation port location bottom CYLocation and orientation of n-out location Cutain drain collector cmin and all absorption 0jifold placement O Sand augmentation coi onents ❑ ce placement Other cross-section detail: D- Location and dimension of ateral placement with distance Biservation ports/clean-outs primary ary system and reserve area toçlgn of bed Other Information uildings ��, caleof ble/visual alarm referenced Yes No Direction of slope indicator drawing shown on scale O E.t6gn staked out DWterlines bar O e rded Notices attached ❑mss,easements,driveways, Gl" O -Waiver(s)attached levation benchmark and relative ) parking I elevations of system components ❑Pupip curve attached ❑-1V orth arrow and scale;drawing 0 D-fv9uation of failure shown on scale bar Non-r dential justification Waste strength low fy DESIGN APPROVAL Th .undersi c i rust be notified by ins aller at time of installation DYes ❑ No S--7 z4 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 jlocal on- ' regulations: Envi o e Vital Health Spe is ' t Date CAUTION: DESIGN APPR AL 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: 7 2_O 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, J 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. Revised:6/11/2025 a f DESIGN FORM—PAGE ONE Assessor's Parcel Number: / 2 / Jz 247 6 9l O IOi9;131 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"X 17t' ' PACEIDEIT,II'ILATIN Permit Number: SWG 1p - Designer's Name: C,41.€is /=GSri�pjj Applicant's Name: py V6'NTU/I?i G2Or//o Designer's Phone Number: 3' S2 /- Mailing Address: //D W l 5r rrd, C_ , Designer's Address: /28 Iv. RIMER 57 City State Zip fi54/V', i ',4qd ' City State j Zip Designer's Email u/= e�ayn�� Treatment Device ❑Glendon ❑Sand Filter ❑Mound Ll1'Sand Lined Drainfield ❑Recirculating Filter ❑ATU ❑Other Treatment Level(check all that apply): ❑A ❑IB ❑C 0 BLI ❑BL2 0 BL3 0 E 0 N Drainfield Type ❑Gravity ressure ❑Trench ed 0 Sub Surface Drip Septic Tank/Drainfield Specifications Laterals Number of Bedrooms 9 Sched e/Class 4/9 Daily Flow:Operating Capacity gpd Length ft Daily Flow:Design Flow y�� I gpd Diameter /7'y in Septic Tank Capacity(working) / jp gal Number Receiving Soil Type(1-6) / Separation Z• s' ft Receiving Soil Appl.Rate gpd/ft2 Orifices Required Primary Area ft2 Total Number of Orifices f'p Designed Primary Area L/ j ft2 Diameter � /d in Designed Reserve Area a j ft2 Spacing ,gyp, in Trench/Bed Width /d ft Manifold Trench/Bed Length /5 ft Schedule/Class Vo Elevation Measurements Length 7, ft Original Drainfield Area Slope % Diameter Z in New Slope,If Altered % Preferred manifold configuration used? 0 Yes f� o Depth of Excavation Up-slope !/f'/h /,j-�nL/in jansport Pipe from Original Grade Down-slope " i Scheule% 'ass r Designed Vertical Separation z9 � iri'�: ng ��26 ;.�n��-.;:� Gravel-based Drainfield Required? es 0 Nc tY : DA 4te? . in Pump Required? fis ❑No Gp�N�Y��1VIRONMDosing and Pump Chamber Pump/Siphon Specifications ( MASOP l umberf oM/day Z/ Diff.in Elevation Between Pump.&Uppermost Orifice P Pp ≤ ft Dose quantity /ya gal' Drainfield Squirt Height/Selected Residual(head) 'ft Chamber Capacity(flood) /Zv a gal Uppermost Orifice 2 igher 0 Lower than Pump Shutoff Pump contr�o :Please chJhose required. Capacity @ Total Pressure Head; tia f gpm l 1 imer Q Elapse Meter C4-Event Counter Calculated Total Pressure Head {{ If Timer_ Pump on 7 1? S/e l ,Pump off Comments 7- �*/S ,-i Revised:'6/11/2025 \ / / / � Bour ault fi eour gulf Rd G�eel \ \ Ly & P 9� _ 101 PURDY If I �, Eagle 30 Sires �a,s�°6—• 66 2 3/'\ 6• 3� `�,� � � _.__,� �� is /d I : �4����4C�r(`9� �® �4fi�� .. .. . ( • �. . I I a D4CGJ CPi44�� - Ber�room residence= ��O G.P:D. Cpriaary) • "epP6s�, —� G.P.D. Creserve) jz.of /� /Do.p!J w �9 x/ •26,65' 3O2.z z " • _ ~� , • F sue. sy' � - P/2a spa• Z_PRR'r lP ° _ rimer ) p 5a G.P.D. fr F y (' /S.F. nh 2 6.2026 BU o y8U ff Z Crser.0 ) MAY F. Yo � �r a -z <. w � MASON COUNTY ENVIRONMENTAL HEALTH Ti m �.�>E� lVeC✓d, s�T Tim 1. DRAINFIELD, SEE DETAILS 2. BENCHMARK EL. = 100' ASSU>r0 �{ ,k3 'PI 3. Jac GAL. CONCRETE SEPTIC TANK. /x/-66 7z/✓' /� 0 \ 28O3 X10 . i2 & -- r -' -. 5. 2 sG" elo PVC DELIVER Y LINE. • 6. 4" PVC ASTU 3034 TIGHTLINE. MIN. SLOPE = 2% 7. 4" PVC CLEANOIT, I.E. .= 99 a. WATERLINE. MUST BE LOCATED MIN.10' FROM ALL SEPTIC SYSTEM COMPONENTS. LEGAL DESCRIPTION ��y� y ADVANCED ENGINEERING OWNER' S,. JOB NUMBER /Y�/�iy, v .v�2rc.� G�o�i"° :S:22 T:z/ R:yu✓T.P.#°�/zizz- yd- 9!b 93 , c \ S-7-vn 128 N.River Street Q /D .//o w. /� •sr sr.� G. SATE —ter— Montesano,WA 98563 r o� s� A zoo SCALE: / '� n/D SHT_� OF # r' .- SP-s O r �}`/ _1/SST 11�1I f�i�DC� _ /.II ≤// ` r V 1. - THIS IS A SPECIAL DESIGN DUE TO ADVERSE SOIL L^�,.--;> A t �/ oi7 i i I ' � &2Ar.E CONDITIONS, GROUNDWATER TABLE AND/OR TOPOGRAPHY. f't 1 G /--`:L_ / ADVANCED ENGINEERING HAS DESIGNED THIS SYSTEM IN "� !t r I L t EP- FA SRI G ACCORDANCE WITH ALL CURRENT STATE.AND COUNTY HEALTH Tr„ � �y([�� fCC 1 % DEPARTMENT REQUIREMENTS , AND ASSUMES NO PJ I /f 'S /,I J, i7 7_ 'RESPONSIBILITY FOR ITS USE OR LONGEVITY; THE,OWNER 36 " Y /J THEREFORE AGREES TO MAINTAIN AND MAKE ALL NECESSARY tr -"� L A-T 2 k LS ) REPAIRS TO THE SYSTEM AT NO COST TO ADVANCED /?T 3c OaC - J?LTu?AJ47744L. f ENGINEERING. al�Se/CvgT/G.r �,�7s 2. THE CONTRACTOR SHALL BE CERTIFIED AND APPROVED BY %O O (� THE COUNTY TO INSTALL SEPTIC SYSTEMS. 3 Tlom QFS.4,(/!D r /f % 3. THE CONTRACTOR SHALL FIELD- VERIFY ALL CONTOURS, y \ 6 '/�// - 6 atN� STUB OUT ELEVATIONS, AND TRENCH DEPTHS IN 30 - Sc/.� c- ' S." r _ cySKsoA/ DRAINFIELD AREAS PRIOR TO CONSTRUCTION. • 4. ALL CONSTRUCTION MATERIALS AND INSTALLATION SHALL r'{ F 7 i> CONFORM TO .ALL APPLICABLE' HEALTH SP50&SP5BA9 I STATE AND COUNTY r - DEPARTMENT REQUIREMENTS. 2/ aD O ca. �;, ! 5. IT SHALL BE THE INSTALLER'S'RESPONSIBILITY TO HAVE x I A COPY OF THIS DESIGN ONSITE AT ALL TIMES DURING , CONSTRUCTION. ' 30 c.1 � � X10 O - 6. IT SHALL BE THE OWNER'S AND/OR INSTALLER'S , /GGOGL! • REEPOCOUNTYITY TO NOTIFY ADVANCED ENGINEERING AND . ! � \\ -; -_ y�•, THE COUNTY HEALTH DEPARTMENT FOR THE REQUIRED 0 / jo ' '"�� v �` �7 q (INSPECTIONS PRIOR TO BACKFILLING. —Ia - '- (� \ i7. ALL REQUIRED TESTS SHALL BE SUCCESSFULLY RUN PRIOR Capad)y-U.S.G.P.M.0 20 40 60 00 100 120 140 ," Y P l� I TO CALLING ADVANCED ENGINEERING FOR 'FINAL INSPECTION. 67 GP ALL ' COMPONENTS, INCLUDING ALL TANK ry! lo2 M A-tI� J4s�in ACCESS LIDS MUST BE ACCESSIBLE FOR INSPECTION., Sxp N� `/ 8. ANY VARIATIONS TO THIS: DESIGN SHALL FIRST! BE �v - LO t . - _• APPROVED BY' ADVANCED ENGINEERING AND THE COUNTY .,.. HEALTH DEPARTMENT.. 9 OWNER/INSTALLER SHALL NOT REMOVE. ANY TOP• SOIL IN . - - - - •• •T - THE SITE AREA. REMOVAL OF TOP SOIL COULD RENDER b H THE S UNUSABLE. ' * 1. HAZEN 8 WILLIAMS C 140 L/ "C(f+/ _ ' �1Y ENV�Rp�MENjA� 10. IXISTINC UCILITIES SHOWN ON THE PLANS HAVE BEEN PLOTTED FROM THE BEST INFORMATION AVAILABLE TO THE. * 2. LATERAL SP CIN 48.0 feet * 6. ORIFICE DIA9 1.25 feet C �„tyR DESIGNER. ACCURACY AND COI:ETENESS ARE NOT * 3. LATERAL SPACING 2.5 feet * 7. ORIFICE SPACING 2.5 feet �7 ,{1 "' @J GUARANTEED. _ * 4. PIPE SCHEDULE/CLASS 40 * 8. ORIFICE DIAMETER 3/16 inch 00 5. NUMBER OF LATERALS 4 9. ORIFICES/LATERAL 19 _ _ = MA N I F 0 L D DATA= /L le .. �� \'�' `(�� - THREADED CAP OR PLUG *10, MANIFOLD LENGTH 7.5 feet *12. MANIFOLD DIAMETER 2 inch - 1 •a, *11. PIPE SCHEDULE/CLASS 40 *13. MANIFOLD TYPE END /��, i PLUG IN SLEEVE FORCEMAIN DATA === : .: - -- *14. FORCE MAIN LENGTH 75.0 feet *18. SWING CHECK VALVES 1 S•Pvc *15. PIPE SCHSI)IILB/CLASS 40 *19. GATE VALVES 0 ��rr p i � pi LAST ORIFlCE;WITH ORIFICE *16, FORCE MAIN DIAMETER 2 SIICIl *20. OTHR.VEL.HDS,LOST 0 IE -2 S I II '_ It-7J$- �-- I� HIGH WATER ALARM. SHIELDS IFORIFIC ITH ORIFICE *17. 90 D$GREE BENDS 4 �Il (J - Fs '" IS UPWARD 0; 'I PLOP CN 6 �� BACKFRL SUS PRESSURE - FLOW DATAING /� MATERIAL*21. CALCULATE 10 VALUES N OP FIC FAND INCREMENTING N REM PTIN'USING 1.0 FOOT 7 II � POD tl '�j�a T a•. MINIMUM PRESSURE ON THE LAST ORIFICE AND INCRHMBN'PING TAE _ C]. 7O� _ PRESSDRE OE THE LAST ORIFICE BY 1 FEET. O I• �O ` \\\\ \\ *22. DRAINFIELD ELEVATION ABOVE PDMP = 5 FEET SUMMARY OP HEAD - DISCHARGE DATA P•. .._........_1 - _ - - I PRESSURE LAS -T 1P O D SPECIFIEDRA OO O8\/ \ OO O Opp RESIDUAL FLOW DELTA HEAD AT HEAD AT DELTA TOTAL TOTAL .,_ °0°° °D DRAIN ROCK;e•MIN. HEAD AT PER FLOW IN DISTAL FORCE HEAD IN SYSTEM SYSTEM /\ I O O OHO O° BELOW PIPE LAST ORIF LATERAL LATERAL LATERAL MAIN MANIFOLD FLOW HEAD 1. GAL. CHAMBER -PVC HOSE OR LONG yGt� 7. ' 9. EFFLUENT PUMP -OR EQUAL. SWEEPEL80W (fevet)===(g'i/min) <10% ok (feet) (feet)=== =10ok (gal/mix,.) (feet) 1200 GAL. WATERTIGHT CONCRETE \ • �Sio- a EQUAL _32.2 PUMP CHAMBER WITH WATERTIGHT /,\��\ � ,�\ �� TENOTORH DRAIN HOLES, 1.00 8.05 8.0 1,23 1.14 —7.4 32.2 8.5 Z. egGO..GAL. RISER AND LID. IF DIFFERENT , ETITeNDrONITOR MDFDRA EL 2.00 11.38 7.6 2..44 2.26 -7.6 45.5 11.7 � 10. "ORENCO' WATERPROOF JUNCTION` TaNDNIroRPosowG•3.00 13.93 7.4 3.65 3.37 -7.7 55,7 14.9 .3. /2cc GAL. SEPTIC TANK PUMP CHAMBER IS USED, THE BOX. 4.00 16.07 7.3 4.85 4.47 -7.8 64.3 18.1 ' " MERCURY FLOAT WILL CHANGE. INFlLTRATIYE SURFACE 5.00 17,96 7.1 6.05 5.57 -7.9 71.9 21.3 - •4. "ORENCO" 24" WATERTIGHT DOSE VOLUME u.0 GALS ± 11. THREADED UNION 6.00 19.67 7.0 7.24 6.66 -8.0 78.7 24,4 RIBBED PVC RI ER W/ LID ��/ -7.00 21.24 7.0 8,43 7.76 -8.0 85.0 27.5 '7 ��`� 8.00 22.71 6.9 9.62 8.85 -8.1 90.8 30.6 (GROUTED ON)CR&o/o ,• /k)8. MERCURY FLOAT SWITJOIES. 12. CHECK VALVE 9.00 24.08 68 10.81 9.94 -8.1 96.3 33,6 ATTACH TO SECURED PVC a 10.00 25.38 6.8 12.00 11.03 -8.1 101.5 36.7 5. SWITCH AND ALARM PANEL - • FL04TS72Gs1AND SET FOR PUMP 13. , 4' b PVC FORCEMAIN Volume of Laterals 14.9 - •ON'HOUSE. CYCLE. - - . Iy F-f�-L� �T P/LTE�_ MONI'fORINGICLEANOur PORT ManifoldMain Volume 1.3 /� T NG!CLS(EXAMPLEN Force System Volume 13.1 6. POWERLINE I A NI D E• 1 A 1 L Total System Volume 29.3 gallons - • OWNER: - JOB NUMBER ADVANCED ENGINEERING p D S--7126_ 128 N.River Street Montesano, WA 98563 i��/YI d','1�7`!/�Ez- G.��`�/� DATE — 360-249-8447 SHI . of