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HomeMy WebLinkAboutSWG2025-00152 - SWG Application / Design - 4/25/2025 MASON COUNTY 415 N 6TH STREET,SHELTON,WA 98584 SHELTON:360-427-9670,EXT 400 L BELFAIR:360-275 4467,EXT 400 f ` Public Health & Human Services ELMA:360-482-5269,EXT 400 FAX:360-427-7787 On-Site Sewage System Permit: SWG2025-00152 �` 00 APPLICANT AVERY JAMES R & DIANE 0 Phone: Address: 70 SE SELLS DR SHELTON, WA 98584 OWNER AVERY JAMES R & DIANE 0 Phone: Address: 70 SE SELLS DR SHELTON, WA 98584 SEPTIC DESIGNER CINDY WAITE* Phone: 360-701-0205 Address: 80 E PICKERING LANE SHELTON, WA 98584 Site Address: 70 SE SELLS DR Primary Parcel Number: 319024390022 Permit Description: New 2bd pressure trench for future ADU in barn Permit Submitted Date: 04/25/2025 Permit Issued Date: 05/27/2025 Issued By: Rhonda Thompson Current Permit Fees Paid: $825.00 (additional fees may be required upon installation of system). Permit Expiration Date: 05/01/2028 (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 Drainfield 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. OFFICIAL USE ONLY DATE RECEIVED: 0 MASON COUNTY Dot 2s— 202n5 N COMMUNITYSERVICES AMOUNT RECEIVED. ��� RECEIVED EY v N Public Health(Community Health/Environmental Health) C 360-427.9670,ext.400 or 360-27$4467.ezt 400 ('' /'� 415 N.61h Street Shelton.WA 98584 \WV 2 j25 Co 152. Zg 2 2 ON-SITE SEWAGE SYSTEM APPLICATION m 0 APPLICANT PHONF m JAMES AVERY 0 360-490-2970 OR 360-789-9948 z r MAILING ADDRESS-STREET.CITY,STATE,ZIP CODE % g 70 SE SELLS RD 0� 1p`L`� SHELTON WA 98584 co SITE ADDRESS-STREET,CITY,ZIP CODE ��) /�' 70 SE SELLS RD 0 PQ� go SHELTON WA 98584 I w NAME OF DESIGNER . PHONE CINDY WAITE 360-701-0205 NAME OF INSTALLER PHONE o TBD 7 CD PERMIT TYPE(select one) DRINKING WATER SOURCE O Pir RESIDENTIAL OSS COMMUNITY OSS COMMERCIAL OSS n-PRIVATE INDIVIDUAL WELL I.PRIVATE TWO-PARTY WELL Z I Ni TYPE OF WORK(select one) Q PUBLIC WATER SYSTEM r 6 NEW CONSTRUCTION/UPGRADES OTHER DETAILS(select all that apply) 0 TABLE IX REPAIR IX -Z SUBMITTALS� 0 SURFACING SEWAGE Pi EXISTING FAILURE 0 SHORELINE CO In DESIGN FORM(REQUIRED) VSEPTIC DESIGN(REQUIRED) BEDROOMS LOT SIZE r I 6-WAIVER(S)(IF APPLICABLE) 2 2.9 ACRES a , DIRECTIONS TO SITE AND SITE CONDITIONS (ex locked gale) GO SOUTH ON 101, TURN LEFT ONTO COLE ROAD, TURN LEFT ONTO LYNCH I o ROAD, TURN RIGHT ON SELLS ROAD, DRIVEWAY IS ON THE RIGHT, SECOND r- PARCEL ON SELLS ROAD. SOIL LOGS ARE BEHIND THE BARN AND THE RESERVE o 0 SOIL LOG IS IN THE WOODS ON THE RIGHT AS YOU TURN ONTO THE DRIVEWAY I Iv SITE MUST BE FLAGGED FROM MAIN ROAD AND TEST HOLES MUST BE FLAGGED WITH TEST HOLE NUMBERS. I N OFFICIAL USE ONLY BELOW THIS LINE UPGRADE/FAILURE SOURCE(for reporting purposes) ❑VOLUNTARY 0 MAINTENANCE/PUMPING 0 BUILDING PERMIT ❑HOME SALE ❑COMPLAINT ❑OTHER: INSPECTOR SOIL LOGS COMMENTS/CONDITIONS Tik \ : 0 '30 0_, 3 k± oksb( ` c 1 �cK �o b '96trn ; ctouks? --\-\--VZ t - Li C L ( 5(-1----vnzTr cyviAl w j 11 \\Mi (). (Lib Q LT'? , /c10 r C U� --1- CL V youv il,„„r,e4r-i RECORD DRAWING AND INSTALLATION REPORTS'" - V= CODES: II J) d ''AA WI 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 IZnytill 0Y1 ,) ) II LC 1112`g SaNalt\i") , 5-1? -7f THIS FORM MAY SCANNED AND AVAILABLE FOR PUBLIC VIEW ON THE MASON COUNTY WEBSITE REVISED 12/7/2015 DESIGN FORM—PAGE ONE YAssessor's Parcel Number: 3 1 9 0 2 — 1 4 — 9 0 0 2 2 A design will be reviewed when 3 conies of each of the following are submitted: 0 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: I I"X 17" PARCEL IDENTIFICATION Permit Number: SWG Z 0 Z ^ DO l5L Designer's Name: CINDY WAITE Applicant's Name: JAMES AVERY Designer's Phone Number: 360-701-0205 Mailing Address: 70 SE SELLS RD Designer's Address: 80 E PICKERINTG 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 el Pressure gTrench 0 Bed 0 Sub Surface Drip Septic Tank/Drainfield Specifications Laterals Number of Bedrooms 2 Schedule/Class SCHEDULE 40 Daily Flow: Operating Capacity 180 gpd Length 34-44 ft Daily Flow: Design Flow 240 gpd Diameter (,2.f in Septic Tank Capacity(working) 1000 gal Number 5 Receiving Soil Type(1-6) 5 Separation 5 ft Receiving Soil Appl. Rate .4 gpd/ft2 Orifices Required Primary Area 600 ft2 Total Number of 0 c 42 Designed Primary Area 600 ft2 Diameter 3/16 in Designed Reserve Area 600 ft2 Spacing ti� ( ,y y , 60 in As Trench/Bed Width 3 ft 4'`<('`"ti0 hold Trench/Bed Length 200 ft Sched le/ 4'' `gyp SCHEDULE 40 Elevation Measurements Length et? 49E WAITS 1-2 ft Original Drainfield Area Slope 6 % Diam LICENSED DESIGNER 2 New Slope, If Altered o xI V �s �s:a in — /o Preferred maniol�configuration used? tic Yes 0 No Depth of Excavation Up-slope `Q . in Transport Pipe from Original Grade Down-slope 2 in Schedule/Class SCHEDULE 40 Designed Vertical Separation 24 I in Length 20 ft Gravelless Chambers Required? 0 Yes 0 No Optional Diameter 2 in Pump Required? Rf Yes 0 No i Dosing and Pump Chamber Pump/Siphon Specifications 1 Number of doses/day 4 Diff. in Elevation Between Pump& Uppermost Orifice 6 ft Dose quantity 45 gal Drainfield Squirt Height/Selected Residual (head) 2 ft Chamber Capacity(flood) 1200 gal Uppermost Orifice 0 Higher 0 Lower than Pump Shutoff Pump controls: Please check those required. Capacity @ Total Pressure Head 24.78 gpm gTimer l 'Ela se Meter p 10Event Counter Calculated Total Pressure Head 8.21 ft If Timer: Pump on ,Pump off Comments 11 PUMP CONTROLS TO BE SET AT TIME OF INSTALL AT 180 GPD. R. 0tr.,t 1 S/y2� .2 DESIGN FORM—PAGE TWO Assessor's Parcel Number: 3 1 9 0 2 -- 1 4 -- 9 0 0 2 2 Permit Number: SWG DESIGN CHECKLISTS Scaled Plot Plan Scalded Layout Sketch Cross-Section Sketch Ft Test hole locations 64 i Drainfield orientation and layout Reference depth from original grade: gSoil logs b0 i Trench/bed dimensions and &f Septic tank g Property lines !critical distances within layout if Drainfield cover 0 Existing and proposed wells g jD-Box/Valve box locations Reference depth from original grade within 100 ft of property g Septic tank/pump chamber and restrictive strata: f d Measurements to cuts, banks, and i locations .p p(ti( 'am 121 Laterals, trench bed,top and surface water and critical areas g !Observation port location bottom 04"(ocation and orientation of 6g !Clean-out location 0 Curtain drain collector curtain drain and all absorption g Manifold placement 0 Sand augmentation components Gg (Orifice placement Other cross-section detail: Ig Location and dimension of gObservation primary system and reserve area Eg Lateral! placement with distance ports/clean-outs Ito edge of bed 6I Buildings ! g Other Information Eig !Audible/visual alarm referenced Yes No 61 Direction of slope indicator I P/,, /.) „/ g cale of drawing sll�own on scale L ' 0 Design staked out g Waterlines bar 0 0 Recorded Notices attached 6 Roads, easements,driveways, ❑ 0 Waiver(s) attached parking 0 0 Pump curve attached g North arrow and scale drawing 0 0 Evaluation of failure shown on scale bar Non-residential justification ❑ 0 Waste strength ❑ ❑ Flow DESIGN APPROVAL The undersigned designer must ben ' ted by installer at time of installation 1A Yes 0 No j � 312021j • Si natufe o De i `g � s gner Date The undersigned has reviewed this design onlbehalf of Mason County Public Health and determined it to be in compliance with state and local on-site regulations: Environmental Health S ecialist 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: c/ I I ✓ 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. 2.--1 II This form may be scanned and available for public view on the Mason County Web site. + Updated Date: 12/7/2015 Mt ''' ...' \\N • m • D I- {/1;r a a o �?� N a N Q 0 0� m •O 1 1 ,• vs as 1- $ kki ck) • i " •1, .- .,„, CO di X N , , eo 9 r . APPROVED 2025 e , ....„ MASCNCGMTAYEZV'7H o Ay �- �'� Rr y -4 *414i 4- ....„ . / 2 l0 • 1 IA, la'a) (2) Ibli N ,a O zie ��1 ` op CINDV E.WAITE S , LICENSED IGt 3 ' W ->e) «h. HtS 95 tUr 33•0 . . r-------- .. © i L ; N ' a b ' r,' O CO CO v O C71 CA) N.) -1 .. CO, C (gypp i �� X X CD < < N O n c - X O f� ���� (• Fn. V) fD O O CD Q ,_+ - CD (D = O O 7 5 n o -(Zcl) 5. 1 ca / çfl' / cc.fD n n C Q cr w/ u) -, H 74 ow v v N g\‘‘ I 6 I 1 a • , ORIFICE SPACING 5 Lateral# Length Length Orifice # Distance from Distance from end Length# # (Feet) (Inches) Spacing " Orifices feeder line of end of lateral 1 43 516 160 9 1.5 1.5 43 2 44 528, j60 9 2 2 44 3 43 516 60 9 1.5 1.5 43 4 36 432 60 8 0.5 0.5 36 5 34 408 '60 7 2 2 34 200 42 205 TRANS LENGTH 20 GPM 24.78 K (2"SCHEDULEN 40) 284.5 FRICTION LOSS 0.218809' Squirt 2 Elevation difference 6 TDH 8.218809 7" <1,0'' 0 ( £r" Our' 4 ve %/`Ar '✓ w /41 ✓/ i 4-1- I i—3 .3 r " (o V " 6 ", t V V V /-,� _ NIL 4 •1/ Z'� L- al 7i (,1`4 r r -4/ y / v v ✓ 1 ✓ \A L La44{ . . 4. r .,,,y, Yv 6 $� F nSy 9i� 0)4 41 0 Q' < J ` 2` V � TRENCH CROSS SECTION ,c„,- o E41 - ,� LICENSED DESIGNER V�Es� >o ,Se. Pr A11 r4 (4 Page L/ ,/'t n Q[a,d ( %1 9 i -,- o „ j' s �� Gi viYj� c/�T'i3 i -� APPROVED y y VS MAY 2 7 2025 . \\\ 1 MASON COUNTY ENVIRONMENTAL HEALTH _________ I. RET DRAINFIELD LAYOUT 0)1..4 ,, - i q2. - -04 &LIS' a • Ali) - Q LAY .......1 gfr I ,I 0 /,, 1 11,. -ff L.Z 0 ° -f-'2"- a • ..___,f I if, La_ 1 I /V ' 1 /0 ' 1 /0 ' / ''= t o APPROVED MAYi 27 2025 1_,-1 I 1��� MASON COUNTY ENVIRONMENTAL HEALTH ,!3 " RET L.a+ 2_ la 3 " X1=CLEANOUT/OBS PORTSCs) La-1 1 3" 1 3 1,' X2=D BOXNALVE BOX ' X3=Check Valves (3 ) I j vG}IvP- bow - L z) iii 1 Q" (,Z " X4=Flow Control Valves(6") i ,V It XS=Soil Logs M��. �'O� La � �I 0)ill) itr 510041 <, ,' -off c ev,,i 4),... 141 1 4 v\ \l.\\\'�\ \ \�\\%. EXPIRtS US�tOi 4) , "eP ‘"T t4 Ple4-7 g s shyl1 G s o,L ...Ave • • ott 3 RISER WITH LOCKING LID TO DRAINFIELD • PRESSURE LATERALS A i - ---.1 j ..,.. . ..m. Tt _. __ r j FLOW CONTROL VALVE F. 411F - SLOTS AB IREQUIRED .. � - i FLAP CHECK \;`� y\%�'�.`' --.? VALVE %;:` ,!\ yam,, C LONG SWEEP 90 ti _ ;%�C '�o K ,0 ., DEGREE ELBOW \ vt/`yy1�-`, r, SECTION WASHED ROOK • DRAIN SUMP 11 TRANSPORT PIPE FROM 47*-,, PUMP OHAMBER ti 510C*7' • p� CINDY E AITE S LICENSED DESIGNER z,5 o5 1G DRAINFIELD CONTROL BOX - (SLOPING GROUND: MANIFOLD BELOW LATERALS) • APPROVED MAY 2 7 2025 MASON COUNTY ENVIRONMENTAL HEALTH RET THREADED CAP OR PLUG p 'f ItCLAA -� 6"PVC LAST ORIFICE;WITH ORIFICE SHIELDS IF ORIFICE ORIENTATION IS BACKFILL \\4 UPWARD MATERIAL ��' \\V\�� \�� 00 �. ,o, o° o \\-1>/! o0\I o�cf' t PRESSURE LATERAL PVC HOSE OR \�\\ / ° o6 100o AS SPECIFIED LONG SWEEP \/ 4 0 0 0 0 0 ' OO\ ELBOW \ DRAIN ROCK; 8"MIN. \� BELOW PIPE UNDISTURBED SOIL 6"PVC WITH DRAIN HOLES; EXTEND TO BOTTOM OF GRAVEL TO MONITOR PONOING INFILTRATIVE SURFACE • MONITORINGICLEANOUiP• ;T (EXAMPLE) ;'4L rAWkI% 510I 02 CINi �I LICCNS :f+ _lG R 1+ LXPIRLS 0510, /0 ° �w .51' SECURED LID WITH GAS TIGHT SEAL 1 24"DIAMETER ACCESS RISER .a. iMminmen FINISH GRADE PS 4111111111111. ---1►�I- _ / TO PUMP FROM SEWAGE ail CHAMBER SOURCE FLOATING MAT APPROVED EFFLUENT FILTER SEDIMENTS a I. PROVED MAY 2 7 2025 sEPri_ MASON COUNTY ENVIRONMENTAL HEALT (TYPICAL) RET SECURE7 ID WITH GAS TIGHT SEAL THREADED UNION ,24"DIAMETER �'ACCESS RISER FINISH GRADE �, SERVICE VALVE* no i FROM SEPTIC i S/F'• Al TANK 17 ,..I �a o �'e TO DRAINFIELD J 1•I EMERGENCY STORAGE , ANTI SIPHON HIGH WATER ALARM LEVEL oa,', VALVE* S ,a' WORKING V C 6' INDEPENDENT NORMAL TIMER OFF LEVEE/ /Q- S T, - FLOAT STEM i�3aQ (sti,yA,/.NCLOSEDPUMP MOUNTING �� 'r 7`IMENTSHROUD /,Q' y�fd CHECK VALVE V g; :., - 18" I . . �� , p • ' �� l 3UBMER8IB. liA ro •r •; i1. CENTRIFUGAL ♦ " ` S1�AMBER_ PUMP EXPRLS 05/10, P (TYPICAL) 1 r" F/4 .1c / I *A8 NEEDED 43V eAn T i 1 libillpu • 4Y 2 MASON COU ' 2025 ¶tf h'Pump Specifications1! js, 60. 280 Series 1 /2 hp _,..- '' Submersible Effluent Pump LITERS PER MINUTE 0 50 100 150 200 250 40 A —t 12 0 AEI s !+4 r II' 0 )/ kv r tiv . `6,+I, . i�1 30 - i? b1C0a18 ITE '0'} G= ,ICE SED D SIGNER V '10 i 1 .k. ..-,—c'," li kto .. 1 ‘, 6` I. N ce I- ij W i LL Z 2 Z o w 20 6o J • O 0 O - 4 • 10 - 2 0 0 1t 0 10 20 30 40 50 60 70 GALLONS PER MINUTE 280_PI ROI0/7/2015 CCopyright 2015 Liberty Pumps Inc. All rights reserved. Specifications subject to change without notice. Ithei Installation Notes Pressure Distribution System: 31902-43-90022 70 SE Sells Dr. 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. 1. Concrete tanks required 2. Gravel base drainfield required 3. Timer to be set at 180GPD 4. Keep wheeled vehicles off the drainfield area before, during and after installation. Tracked equipment only 5. 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. 6. Curtain drains can be no closer than 10' upgradient and 30' down gradient of the drainfield 7. Exposed restrictive layers, cjts, banks, etc. can be no closer than 50' downhill from the drainfield. 8. Install access risers on the septic tanks, valve box and ends of laterals. 9. Make sure septic tank risers fare epoxied or caulked to cast in riser rings on tank. 10. Lids must form a water and Oas tight seal with the access risers. 11. Install effluent filter specified lin this design at the septic tank outlet. 12. This system must be installe by a Thurston County Certified installer. 13. Deviation from this design without prior approval from the designer and Thurston 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 'n 45 gallons per day per capita with two persons per bedroom. The minimum desi n 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 laterals with contour(lithe ground. ' 16. Install trench bottoms level and always maintain a minimum of six inches into native soil.. 17. 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. 18. Install audio/visual alarm. 19. Filter fabric required over drain rock prior to backfilling. If the drain roc en bove the original grade, run the filter fabric at least 2 inches down the tren a „ifiec i9inal grade. APPROVES �i 1,: 1, y� LA 1 MAY 27 2025 0i CI D E4� LI E SIGNER ,t ' 1 ' " MASON COUNTY ENVIRETRONMENTAL HEALTH i tx.,iF:ts os�,o, 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 br 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. ViA coQQ4� lit St 8Y CINDY��yyAITE LICENSED DESIGNER WIRES OS/tp, APPROVED MAY 2 7 2025 MASON COUNTY ENVIRONMENTAL HEALTH ll�,,� RET