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Home My WebLink AboutSWG2024-00373 - SWG Application / Design - 8/30/2024 (2) MASON COUNTY 415 N 6TH STREET,SHELTON,WA 98584 SHELTON:360-427-9670,EXT 400 M . 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: SWG2024-00373 APPLICANT TOMAS SEBASTIAN & MELISSANNE Phone: Address: 130 NE TEHILLAH WAY BELFAIR, WA 98528 OWNER TOMAS SEBASTIAN & MELISSANNE Phone: Address: 130 NE TEHILLAH WAY BELFAIR, WA 98528 SEPTIC DESIGNER CINDY WAITE* Phone: 360-701-0205 Address: 80 E PICKERING LANE SHELTON, WA 98584 Site Address: 130 NE TEHILLAH WAY Primary Parcel Number: 123204100090 Permit Description: New 3bd ATU to pressure trench- REVISION Permit Submitted Date: 08/30/2024 Permit Issued Date: 10/02/2024 Issued By: Rhonda Thompson Current Permit Fees Paid: $870.00 (additional fees may be required upon installation of system). Permit Expiration Date: 09/05/2027 (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. rommonir (Q_,—t\A S . r\) , DESIGN FORM—PAGE ONE Assessor's Parcel Number: I 1 213 2101411 0 1 0 0 ` 9 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. 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 2024-00373 Designer's Name: CINDY WAITE Applicant's Name: SEBASTIAN TOMASC/O B LINE Designer's Phone Number: 360-701-0205 Mailing Address: 130 N E TEHILLAH WAY Designer's Address: 80 E PICKERING LANE BELFAIR WA 98528 City State Zip SHELTON WA 98584 City State Zip Designer's Email cindyewaite@msn.com i ; DESIGN PARAMETERS Treatment Device ❑Glendon 0 Sand Filter 0 Mound 0 Sand LinedLi Drainfield 0 Recirculating Filter 0 ATU 0 Other Treatment Level(check all that apply): 0 A tll]B 0 c 0 BL l RBL2 0 BL3 0 E 0 N Drainfield Type ❑ Gravity 0 Pressure 0 Trench 0 Bed 0 Sub Surface Drip Septic Tank/Drainfield Specifications Laterals Number of Bedrooms 3 Schedule/Class SCHEDULE 40 Daily Flow: Operating Capacity 270 gpd Length 60 ft Daily Flow: Design Flow 360 gpd Diameter 1.25 in Septic Tank Capacity(working) 1200 TRASH&BNR 500 gal Number 5 Receiving Soil Type(1-6) 5 Separation 9 ft Receiving Soil Appl.Rate .4 gpd/ft2 1 Orifices Required Primary Area 900 ft2 Total Number rific 60 Designed Primary Area 900 ft2 Diameter 4" T`_ \: 3/16 in Designed Reserve Area 900 ft2 Spacing . �`` ,�1 `�� 60 in Trench/Bed Width 3 ft 0 �ifold Trench/Bed Length 300 ft Sched las 51oo418 F- SCHEDULE 40 INDY E WAITE Elevation Measurements Len LICENSED DESIGNER • 1-2 ft Original Drainfield Area Slope 9 a/o Diameter EXPIRES "1°1 2 in New Slope,If Altered % Preferred manifold configuration used? g Yes 0 No Depth of Excavation Up-slope 9 in Transport Pipe from Original Grade Down-slope 6 in Schedule/Class SCHEDULE 40 Designed Vertical Separation 12 in Length 250 ft Gravel-based Drainfield Required? L'Yes 0 No Diameter 2 in Pump Required? ii6 Yes 0 No Dosing and Pump Chamber Pump/Siphon Specifications Number of doses/day 4 Diff.in Elevation Between Pump&Uppermost Orifice 0 ft Dose quantity 90 gal Drainfield Squirt Height/Selected Residual(head) 2 ft Chamber Capacity(flood) 1200 gal Uppermost Orifice 0 Higher 141'Lower than Pump Shutoff Pump controls: Please check those required. Capacity @ Total Pressure Head 35.4 gpm i Timer 21 Elapse Meter WI Event Counter Calculated Total Pressure Head 7.29 ft If Timer: Pump on ,Pump off Comments DRAINFIELD TO BE STAKED AFTER CLEARING, CONCRETE TANKS REQUIRED, GRAVEL BASE DRAINRFIELD REQUIRED, PUMP CONTROLS TO BE SET AT TIME OF INSTALLATION I ..,;..-1• 4111 Mlle DESIGN FORM—PAGE TWO Assessor's Parcel Number:: 1 ' 2 ! 31210141 1101 01 01 91 0 I Permit Number: SWG 2024-00373 DESIGN CHECKLISTS Scaled Plot Plan Scaled Layout Sketch Cross-Section Sketch f f Test hole locations ' Drainfield orientation and layout Reference depth from original grade: it Soil logs it Trench/bed dimensions and it Septic tank it Property lines critical distances within layout Qf Drainfield cover izf Existing and proposed wells it D-Box/Valve box locations Reference depth from original grade within 100 ft of property Df Septic tank/pump chamber and restrictive strata: Measurements to cuts, banks, and locations cir Laterals,trench/bed,top and surface water and critical areas It Observation port location bottom it Location and orientation of V' Clean-out location Cl Curtain drain collector curtain drain and all absorption ie Manifold placement 0 Sand augmentation components 10 Orifice placement Other cross-section detail: f7' Location and dimension ofFe f� Observation ports/clean-outs primary system and reserve area Lateral placement with distance to edge of bed Other Information it Buildings 171 Audible/visual alarm referenced Yes No izi Direction of slope indicator Q( Scale of drawing shown on scale 0 'Design staked out It Waterlines bar 0 ❑ Recorded Notices attached it Roads, easements,driveways, a Elevation benchmark and relative 0 0 Waiver(s)attached parking elevations of system components ' 0 Pump curve attached af North arrow and scale drawing 0 0 Evaluation of failure shown on scale bar Non-residential justification 0 0 Waste strength 0 ❑ Flow DESIGN APPROVAL The undersigned designer must be notif by inst ller at time of installation ViYes 0 No &di ‘"1 I Li 2-(72..r Signatur 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 regulations: "7 H 1-7-c- Environmental Health Sp alist 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: plI chy-1 ✓ Drainfield site conditions have not been altered to adversely affect conditions of design approval. II 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. Revised: 6/11/2025 4 -. , : ..tli . I . . , 4p •: ., - • ii Apia •.i. ov ,6 ‘-9.-./ , ti, .... ,. .., ,• . , .. . ,.... _., 4 • , cs, . , . . . : •,..:••.r.tio 't-• • bt. , lit lb + i- , 4 ,. ••,....I Kr 11111'., ., : IL , .‘, 1 ANX. .044 le / . ..sik . • ' 4. ' 1 re It '.. ' 'tt4 • ' -4i-.X4jg- Nstit, • # . - '. ,,a , ' ' t 1. ._...F11, '4•••', ,.; "t11' V: - • liti:' ' 1 . ''A. ..'.. 'L ir.Afor . 7.... . fk,*,''.. -. . r. ftt. . . ' * i ., . 4 ,: . . . , ,, . I .e_ __ • #. ' N 44:4, T, +•• r rid ,.kl v,.• I 1 - i ,.,1 03 ,t4 ':. 1,' .7C la...,... . .., • .`,,,,... . 041. 03 t-, . • '.1. _ • . . .,0.: 13° 3 'fk S-li'S: .1.1. ,;r4„,-%44t...4'1° 'i ''.it:.' . ' . . , 1.-4 ., t,, :. . . : ltill , . ,,,,.. , _ .iL i y 14 ,1 ' 46 ‘..0.!fr - • ., . . ,. . ..'„N:ii:),„ ,;0.1'A. i 7) 0/ 04g CM t$ ,�nl� & +. of a) • t � I x ' 5 n 1 - 7 r: 4 I 1 —1r , 0 , :1 f.-..-: J I - _ ��0 -_ �1 1¢t¢ O c) a ' 1 Z O I - I co 1 O 1 I„.., ( gj i I v 1 .41 , I 80.0 , • v -. 1 Ap ! 1 , I j I 1 p''a• 141 -- - _ CD J im � ' OD; 70.0 .1 y 1S i (D N fD Z C • 5 •0.18 �1F S ' 7' - .� • !WAITE Z*', . i IJFrfP t!f. if , . U S D DESIGNER to su 3ID , CO / i /0 I I i i OM 00 5......".".".. ."...........1lin.. 1:: i /IIIIIIMMUME.- , 1 I 1 ISI , • 1 1 ' ^C • 1 I I Q R1 1111 :I z v i ioSO � ?. I- 0 7 2025 1 A P s:R 0 V E D . lli li Milli ANN-C _ -&`'IR NJA_L HEALTH , RET i• ' iii a 1 Q �1 ,./ * �► to w C`' am t W N . -------..,_j 0 i • • I 811181818 . ..) 9 . -- ss "' 1 88Ig1818 4 ,. ..... 'k N e. g I Ill ,, us,.. -------------4----------_______, I • z> 90'0 ' 1 , I 1 1 1 ORIFICE SPACING 5 Lateral# Length Length Orifice # Distance from Distance from end Length# # (Feet) (Inches) Spacing" Orifices feeder line of end of lateral 1 60 720 60 12 2.5 2.5 60 2 60 720 60 12 2.5 2.5 60 3 60 720 60 12 2.5 2.5 60 4 60 720 60 12 2.5 2.5 60 5 60 720 60 12 2.5 2.5 60 300 60 300 TRANS LENGTH 250 25 GPM 35.4 K (2" SCHEDULEN 40) 284.5 FRICTION LOSS 5.2910741 Squirt 2 Elevation difference 0 TDH 7.2910741 nfi \ � 3 Ill i V /41/ APPROVED k. {, TRENCH CROSS Jul- 0 7 2025 ` 0' S ti� SECTIONASON COUNTYC� Eh'V1ROh'MENTAL H o� CIND'E4WAITE ?�' RET EALT LICENSED DESIGNER LxPRES o5no, I ------'-"s-- ------"'"-^----,..,__s_....._s„.4.,.......................,,i q 1 1 I 21. L'/ ( Z i/ ktie, Pc/ft. ( .L ' 24, . DRAINFIELD LAYOUT ittl CO f i (--) __Ri , ta,, ._,______, .______ -11 , ,,L , , 0 .:- _, i .„... -7-----) e' a 1 R cLii-0 (L), 67)---1-. 1 ',L l �,. 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M,i Jtk 0? 2025 COUNry�h�ROh d' na ► N SL '1 2) 3 REr �'F,vrAc HEaLTH X1=CLEANOUT/OBS PORTS X2=D BOX/VALVE BOX (i ) 2 I1. �, ,ychw X3=Check Valves (c) _'N vc1 eve 9,.4 X4=Flow Control Va ves (s-) i v u/,r.t 9 X5=Soil Logs ? cv,fia 4 . e‘l 2 �w i/ kicl C,.._ rti I D \----CAP "7 5 00418 - O� CINDY E.WAITE Fb • LICENSED DESIGNER Ex;',a5 u;;tq 7;24 5Aj /L I iv() a J/i FINISHED GRADE 24"RISERS WITH BOLT ON LIDS CLEANOUT ♦� • (/ tY MIN. 67/2 • BAFFLE CLARIFIED ZONE EFFLUENT FILTER PPROVED JUL 0 7 2025 MASON COUNTY ENVIRONMENTAL HEALT RET c .P N - O• ‘e7 1 I 51 18� OT CINDY E WAITE �� LICENSED DESIGNER LA NHL S J5•1.) • .k 9'-2" .4' WATERTIGHT LID VENT(typ) DUAL PORT AERATOR RISERS(TYP) n �`d 1' , T C( t 36•MAX. /i2 1"PVC(TYP) - \ ` ,-i 51 r` %URUNE L MASTIC 4" S { \ 2'COUPLING _J 3 REDUCER 6' 2"TEE_/ \ 17 1'PVC SLUDGE RETURN LINE 2'PVC -, — - i {TRASH CHAMBER DIGESTER CHAMBER CLARIFIER OPERATING CAPACITY:417 GALLONS OPERATING CAPACITY:421 GALLONS CHAMBER FLOOD CAPACITY:490 GALLONS FLOOD CAPACITY:494 GALLONS 160 GALLONS FLOOD:191 GAL. 'u. � I i 50' 1 53' ° ° o 36' ° o 0 1'X 1/2' APP �ERO' :. °°. ° .� u 4Y4 \ •JUL 0 7 2025 •• •• •••• DIFFUSER BARS(2) 12' MASON COUNTY ENVIRONIE", PARALELTOTANKWALL II \ u R' .. 4. ,l \ - T F SLUDGE RETURN 4. \ \// 1.5-TAPER .1'/ 1 1.4fti STONE-FREE NATIVE SOIL OR COMPACTED SAND INSTALLATION INSTRUCTIONS OVER STONY SOIL 1)Excavate tank hole with vertical walls to 1 foot larger than tank on all sides. 2)If bottom of hole is stony,install 3"of compact sand&level 4' 9'-2" 4' out with screed. __ __ ___ 3)Install tank in center of hole,keeping 1 ft.void space on —I 1-- _ _ all sldes. 24'RISERS P) 24'BLOWER I 4)As tank is filling with water,fill in void space wtth compact I OUs%G CAST granular(sandy)soil free of large dumps of day. TOP oFLI 5)install rest of system,&affix risers to adapters with waterproof adhesive. s E C) 6)Perform watertightness test in field as required by I ,• a I I 3 4$� jurisdiction. 0 1 I I I 7)Upon approval to backfill,carefully backfill with n:j;=-,. S` I 12•RISER I i I soils over top of tank. �.s �AA TRASH CHAMBER i �STF 4 co•• �` B 112.98001 8)Final grade the surface to avoid chanellin• su : c „s 'FA�. L J L water toward tank. s y,°. 1. k i L _ 'ly : , TOP VIEW 11n 1, 5'1 �7�(11ITF 1'', 1'=28R. I O� LIB EN D D�ESAGNER ��l e. :: : I.-,.,a =' '1 A TMENT TANK DETAIL FOR Nu WA TER BNR-500 TREATMENT UNIT 1�1' :: ENVIRO-FLO, REVISED: � R -FLO, INC. 3/01/12 a�� :: Wastewater Treatment Technologies '` • ` P.O. BOX 321161, Flowood, MS 39232 SCALE (877) 836-8476 (601)845-4716 fax i n = '.4 f. ww w .enviro-flo.net �L SECUREI AD WITH OAS a iGHT SEAL 1' THREADED UNION 24"DIAMETER ACCESS RISER FINISH GRADE t9 SERVICE VALVE* FROM SEPTIC ,,--nil TANK Hi ! - �I�` r�. . 1 . TO DRAINFIELD lI EMERGENCY STORAGE , ANTI SIPHON HIGH WATER ALARM LEVEL VALVE* ro WORKING VOLUME INDEPENDENT NORMAL TIMER OFF LEVEL FLOAT STEM -NORMAL -C) FOR FLOAT ENCLOSED PUMP MOUNTING SEDIMENT SHROUD* -_ CHECK VALVE* SEDIMENTS I - SUBMERSIBLE CENTRIFUGAL I PUMP .P_UMP__SF1AABg CLYPICAL) ; p.. ^ . .. *AS NEEOE• 20a Call/ Al i2 PCi • teal APPROVED „ JUL 0 7 20Z5 �7 "`"S MASON COUNTY ENVIRONMENTAL HEAL4 _ ,P, RET oyy ctNcv.r , 0 �" LICENSED ESIGNER Q\\I o Lx,': L$Js Io, ,.•, -Fc94 ffinunrs, , 4I/ 1 nhe _.,,,,.. `• Pump Specifications ,,111141. 0 280 Series 1 /2 hp ur Submersible Effluent Pump LITERS PER MINUTE 0 50 100 150 200 250 40 - I I r _ I --i - 12 - a C 0 073 - 10 1 m rn Xi ti 30 ry 3c c-=' m tea 7 Vl n m - r 6 z 0 21 Cl) = FF {yt W W U. y I+ 20 -, +t3 Oro �4 5 +, \,._, ° 5100418 ',0y p C-4 Y E.WAITE *I, LICENSED DESIGNER • LXP kES U5:t0! 10 - 2 \\‘ 0 - 0 0 10 20 30 40 50 60 70 GALLONS PER MINUTE 280_PI R0I0/7/2015 CCopyright 2015 Liberty Pumps Inc. All rights reserved. Specifications subject to change without noticc. a/Ail Installation Notes Pretreated Pressure Distribution System: 12320-41-00090 130 N E Tehillah Way 1. The 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. 2. Install system during dry weather with acceptable soil conditions 3. Concrete tanks required. 4. Gravel base drainrield required 5. 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. This system must be installed by a Mason County Certified installer or 13. Deviation from this design without prior approval from the designer and Mason County Health Department will make this design null and void. 14. 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 per day. This creates a surge factor of 33% but anticipated flow is ninety gallons per bedroom per day. 15. Install bed or trenches with contour of the ground 16. Install trench bottoms level and always maintain a minimum of six inches into native soil 17. Install locator tape on top of all drainfield laterals. 18. Install threaded clean outs at the ends of all laterals (caps must extend to within six inches of finish grade and be in a valve box as shown on diagram. 19. Install audio/visual alarm • 20. Filter fabric required over drain rock prior to backfilling. If the a rock extends above the original grade, run the filter fabric at lea inc s down the trench wall. APPROVE r V 2 � \ JUL 0 7 2025 5 0oa., k- Q \\ O CIN Y E WAITE MASON COUNTY ENVIRONMENTAL H LICENSED DESIGNER RET k.s �, System Owner Responsibilities: 1. Operation and Maintenance is required by Washington State Department of Health and Mason 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. System owner agrees to read and abide by information regarding their system in the User Manual provided by Mason County Public Health. 7. Keep the flow of sewage at or below the approved design operating capacity. 8. Keep waste strength at residential waste strength parameters. 9. Spread loads of laundry through the week. 10. Do not use excessive bleach or detergents with added whiteners. 11. Do not shower, do laundry and dishwasher at the same time 12. Antibiotics can kill or impair the biological process in the septic tank. 13. Leaky plumbing can hydraulic overload your on-site septic system. 47 0 51 ° �� 5 CINDY E V E LICENSED DESIGNER APPROVED JUL 07 2025 MASON COUNTY ENVIRONMENTAL HEALTH RET