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Home My WebLink AboutSWG2024-00400 - SWG Application / Design - 9/30/2024 TREET, 584 MASON COUNTY 4,5 N6THELTON:3 427-970,EXT 400 SHELTON:360427�6]O,EXT d00 BELFAIR:3604754467,EXT 400 Public Health & Human Services ELMA:3604825269,EXT 400 FAX:360427-7787 On-Site Sewage System Permit: SWG2024-00400 APPLICANT INGERSOLL TIFFANY Phone: 530-852-0714 Address: 44942 PINE SHADOWS RD MCARTHUR, CA 96056 OWNER INGERSOLL TIFFANY Phone: 530-852-0714 Address: 44942 PINE SHADOWS RD MCARTHUR,CA 96056 SEPTIC DESIGNER PAULA JOHNSON' Phone: 360-898-2255 Address: 171 E VUECREST DRIVE UNION,WA 98592 SEPTIC INSTALLER MAPLES EXCAVATING Phone: 360-463-8474 Address: 911 SE ARCADIA SHELTON,WA 98584 Site Address: 180 BE CHANNEL POINT RD Primary Parcel Number: 320255000921 Permit Description: Repair 3bd Oscar X02 Permit Submitted Date: 09130/2024 Permit Issued Date: 10/1012024 Issued By: Rhonda Thompson Current Permit Fees Paid: $805.00 (additional fees may IR required upon Installation of system). Pennit Expiration Date: 10109/2025 (based on dace of nagaetmnl Pennit 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 ups/ope 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 DesignenEngineer installation approval prior to backfil/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 - MASON COUNTY DA F M NED 0 3O Z ® SO COMMUNITY SERVICES MWX "L�"ED g M o h MI .MM(Cwnmuniry ealtN'FmironmenMl HenMl O < y 2 W ON-SITE SEWAGE SYSTEM APPLICATION APPLICANT PRONE m r Tiffany Ingersoll (530) 852-0714 c MATINGADDRESE-STREET.CITY.STATE.ZI",L 3 44942 Pine Shadows Rd McArthur, CA 96056 z SITE ADDRESS-STREET.DRY.PP CODE 180 SE Channel Point Rd Shelton, WA 98584 Q7 ro NAME OF DESIGNER PHONE �j N Arrow Septic Designs, Inc (360) 898-2255 a NAME OF INSTALLER -HONE 0 Maples Excavating (360) 463-8474 y N PERMITIFE(sa(Marpi DRINKING NNTER SCURCE O ®RESIDENTIALOSS L q LCOMMUNITYOSS HCOMMERCIALOSS I,PRIVATE INUIVIDUALNELL IIPRIVATETWCPPARTYWELL 2 TYPE OF NORK(aM.Pnl PUBLIC WATER SYSTEM 51NEWCONSTRUCTION/UPGRADES KREPAIR BEPLICEMENT OTHER DETAILSpNeTWIhS pryl ❑TABLE IX REPAIR Q1 SUBMITTALS ❑SURFACINGSEWAGE mEXISTINGFAILURE ❑SHORELINE¢ m 'DESIGN FORM(REQUIRED) RSEPTIGDESIGNfREDUIRED) eECRGOMs - —61ZE Q EWNVER(S)(IFAPPLICABLE) 3 1.6 acres x O DIRECTIONS TO SrtEANDSrtE COrvG:➢ONS.(ea Ix+ea parol From downtown Shelton, go out Olympic Hwy S (State Rte 3), tum tum (L) on SE Channel Point Rd, 2nd house on (R)with yellow sign I a rT I- I ID #180. SEP 3 0 cC_+ o BY-------------- ( � � SIiE MM3TBE HAGGEDRIQYYAWIIDRDAND LEST XOLESYUST BE(ZAGGED NRN TEST NOlEN1M3Efl3. - OFFICIAL USE ONLY BELOW THIS LINE UFCAAOE/FAILURE SOURCE(Ior:eponiry.vlPxeal ❑VOLUNTARY E3MAINTENANCE/PUMPING ❑BUILOINGPERMR ❑HOMESALE 13COMPLIINT DOTHER. INSPECTORSOLLOGS ..I ro COMMENTS/CONDITIONS % - 0 - 1-5 SZL , 13+ Pwr+ - : Sarre' RECORD ORAAING AND iNSTAU ATION REPCRT V=VERY C=GRRVELLV S*SPND L=EDAM $1=SIR C=CLAY E^E%iREMELY R=ROOTS REQUIRED FCR FINALaPPROVAL. INS RSIGNATURE DATE APPLIGTION E%PIRATIOH MTE APPJGTIONAPPROVCO/I5E'JED BY GATE i a�2.4 Loh IL< 1 l0 2 THIS FORM MAY BE SCARED AND AVAILABLE FOR PUBLIC NEW ON THE MASON COUNTY WEBBITE 4=1.3_o na.ou DESIGN FORM—PAGE ONE Assessor's Parcel Number: 3 2 0 2 5 — 5 0 — 0 0 9 2 1 A design will be reviewed when 3 copies of each of the following are submitted: Completed design form that has been signed and dated. I Scaled layout sketch, including all applicable items on checklist "Scaled plat plan.including all applicable items on checklist. I Cross-section sketch.including all applicable items on checklist. This form may he seemed and available for public view on the Mason County Web site. A1"irsrurn 'ul'r'' uvice: PARCEL IDENTIFICATION PermitNumber. SWG ?0Z4- Designer's Name: Arrow Septic Designs.Inc ApplicanCs Name: Tiffany Ingersoll Designer's Phone Number. (360)898-2255 44942 Pine Shadows Rd 171 E Vuscrest Dr Mailing Address: Designer's Address: _-_ McArthur CA 96056 Union, WA gem City State Zip City State Zip DESIGN PARAMETERS Treatment Device ❑Glendon Biofilter ❑Sand Filter Ef Mound ❑Sand Lioed Drainfield ❑Redoculuting Filter.Type: fs'tAerobic Unit htakarModel OSCAR X02 ❑Disinfvrolion Unit MaWModel Other: Drainfield Type❑Gravity Pressure ❑Trench ❑ Bed fRf Sub Surface Drip Septic Tank/Drainfield Specifications Laterals Number of Bedrooms 3 Schedule/Class Netafim.42 gph Daily Flow:Operating Capacity 270 gild Length 25 ft Daily Flow:Design Flow 360 gpd� Diameter .66 in Septic Tank Capacity (working) X021.0002aspnp gal%? Number 6 roil loops Receiving Soil Type(1-6) 5 Separation .5 ft Receiving Soil Appl. Rate 0.4 gpd/ftc Orifices Required Primary Area 900 flr Total NumberofOrifiices 50 x 6=300 Designed Primary Area 900 ft' Diameter emitter in Designed Reserve.Area 900 ft- Spacing 6 in Trench/Bed Width 20 ft Manifold TrenchBed Length 45 11 Schedule/Class 40 Elevation Measurements Length 40 ft Original Drainfield Area Slope 5 % Diameter 1 in New Slope,If Altered 5 % Preferred manifold configuration used? WYes O No Depth of Excavation Ur-sure 0 in Transport Pipe from Original Grade Do»n-sure 0 in Schedule/Class 40 Designed Vertical Separation 12+ in Length 180 ft Gravelless Chambers Required? ❑Ves 16 No ❑Optional Diameter 1 in Pump Required? Yes ONo Dosing and Pump Chamber Pump/Siphon Specifications Number ofdoses/day 411 Dif,, in Elevation Between Pump&uppermost Oriflec 5 ft Dose quantity .69 gal Drainfield Squirt Height/Selected Residual(head) ft Chamber Capacity(flood) 1,0002-romp _gal Uppermost Orifice If Higher O Lower than Pump Shutoff Pump centrals:Please check those required. Capacity @ Total Pressure Head 62 gpm Rl 61'Elapse kluer RrEvent Counter Calculated Total Pressure Head 9.12 R If Timer: Pump on 30 sec .Pump off 3 min Comments APPROVED ACT i 0 Nall MASON COUNTY ENVIRONMENTAL HEALTH RET DESIGN FORM—PAGE TWO Assessor's Parcel Number:3 2 0 2 5 — 5 0 — 0 0 9 2` 1 ' Permit Number: SWG DESIGN CHECKLISTS Scaled Plot Plan Scaled Layout Sketch Cross-Section Sketch lid Test hole locations 61 Drainfield orientation and layout Reference depth from original grade: m Soil logs 09 Trench/bed dimensions and 6f Septic tank fid Property lines critical distances within layout 9 Drainfield cover fill Existing and proposed wells 6f D-Box/Valve box locations Reference depth from original grade within 100 ft of property 64 Septic twik/pump chamber and restrictive strata: ❑ Measurements to cuts,banks,and locations firs Laterals,trench/bed,top and surface water and critical areas 19 Observation port location bottom ❑ Location and orientation of 19 Clean-out location ❑ Curtain drain collector curtain drain and all absorption Rf Manifold placement 69 Sand augmentation components fd Orifice placement Other cross-section detail: 19 Location and dimension of It Lateral placement with distance liil Observation ports/clean-outs primary system and reserve area to edge of bed 66 Buildings Other Information 56 Audible/vis rm referenced Yes No 16 Direction of slope indicator 66 Scale of d own on scale P1 ❑ Design staked out 21 Waterlines bar �. �, ❑ 9 Recorded Notices attached fid Roads,easements,driveways, e, f ❑ Rf Waiver(s)attached parking 61 ❑ Pump curve attached m North arrow and scale drawing r 9 ❑ Evaluation of failure shown on scale bar �r . +a o Non-residential justification GAULA JOT JOMa50N'. ❑ Gf Waste strength €th Ea ❑ Rr Flow DESIGN APPROVAL The undersigned designer must be no - d by ' stalls- at time of installation 16 Yes ❑ No 9-z7-z,9( Signature of Designer Date The undersigned has reviewed this design on behalf of Mason Countv Public Health and determined it to be in compliance with state and local on-site regulations: —y��Jc�w� (01(0 ftLl Environmental Health Specialist Date CAUTION: DESIGN APPROVAL IS VALID ONLY UNDER THE FOLLOWING CONDITION: ✓ The design is stamped "Approved"by Mason County Public Health. ✓ The Onshe Sewage Permit has not expired,the Permit Expiration Date is: o l ✓ 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. - . - Updawd Date: 12/72015 Arrow Septic Designs, Inc 171 E.Vuecrest Dr. Union,WA 98592 September 26,2024 Mason County Department of Health Services 415 N 6th St Shelton,WA 98584 RE: Tiffany Ingersoll Property(Parcel 432025-50-00921)Septic Upgrade Dear Inspector: Attached is a replacement/upgrade septic design for a property located at 180 SE Channel Point Rd, Shelton, WA 98584. There is an existing 3-bedroom home originally built in 1946.The house has an old gravity septic with limited records located in the front yard by the road. The drainfield size is unknown. The main septic tank was replaced in 2016 with a 1,250-gallon 2-compartment tank. In 2022, a solids pump lift station was installed to send an additional plumbing outlet waste stream to the main tank inlet. The septic system is having problems and the drainfield is no longer taking water the way it should. According to records, it has been ponding for quite some time. The old drainfield is to be abandoned in place and the old tank and lift station are going to stay in use. The existing 1,200 gallon 2-compartment tank is to be retrofitted with the OSCAR X02 kit. There is a proposed new 1,200 gallon 2-compartment discharge tank. The proposed replacement drainfield is a 900 s.f.of OSCAR low-profile mound drainfield,sized using an application rate of 0.4 in a silt loam soil. There will also be a new pump and control panel with a timer,elapse meter and event counter to facilitate future operation and maintenance. The installer is also to ensure that there are no leaky plumbing fixtures inside the house such as running toilets, leaky faucets,etc.that would be contributing to excess flow. Also,the drainfield is to be cleared with extreme care to preserve soil depth. This new system meets Treatment Level A without disinfection. The well is 100 feet away from the drainfield and a full reserve is shown. The property owner's contact information is as follows: Tiffany Ingersoll 44942 Pine Shadows Rd McArthur,CA 96056 (530)852-0714 If you need further information,please contact my office at(360)898-2255. Sincerely, APPROVED OCT 10 2024 a , MASON COUNTY ENVIRONMENTAL HEALTH �5u aase RET NEI!" reatment System Designer xs 56 o sr va rq ee as oa t � o e 3Bk OO GnrUSz/ , 2= u"" ' p Zt�r � ble jpfY �� loop ()SC 1 p50% l fJe / R6� I V' I J,- APPROVED OCT 10 2M MASON COUNTY ENMONMENTAL HEALTH RET 2ta� Scale : �� = y0 eSl HdG o xe 4o se so Sas t" ;O'12y* Sll} loat"'� Qi ce�wta.,,et.am nudio-wwat ae� � fY1o}}. G'la� loam plo+ plan ® c�eg..y��or�rt-.�AoAIi nufe.L t�-S�Gellen sron�/Aa+nen Tu:x /y T;T-ranN P�.�PI## 32o25'50-Oo92.1 O a° O— P.P l8o 5E Channel To-,A R . � Os xeeaworka �'^ Sl�elta 1JA 9858k O 1- 6 OBG1R%01&Sowed Drainfeltl 14 � Ex,si.� b�caic A�-P r t�OY Js OY JOnNBDN". OSCAR-XO2 at-grade drip design calculations Friction Loss Calculations: F= L(Q/K)ve5 F=friction loss through pipe in feet of head L= length of supply line in feet Q= Flush GPM K=47.8(1"sch 40 PVC pipe) (Table 2) Hydraulic Layout*05-50 coils* Design • of lats Coils Dose GPM Flush GPM Excess TDH 240 4 4 1 1.4 7.8 so, 300 5 5 1 1.75 9.75 50' __- 360 6 3 2 2.1 6.2 50' 450 8 4 2 2.8 9.2 so, 490 8 4 2 2.8 9.2 50' Soo 10 5 2 3.5 115 50, __ _ Coils must be arranged in a single line F=4.1 (6.2/47.8)=85 APPROVED F=4.12 OCT 10 2024 Total Design GPM= Flush GPM=6.2(from chart) MASON COUNTY ENVIRONMENTAL HEALTHRET Total Head=Friction Loss+Elevation from Pump Tank to OSCAR Coil Drainfield Total Head=4.12+5=9.12(9.12<50'excess TDH—OK) Factory Timer Settings: 1,440 minutes per day/411 doses per day=3.5 min per dose cycle line].on&off) From Factory: 30 seconds On&3 minutes Off P Doan PRULA JOY JONNFON 'lIC IS 1)FSf fl• " FxnPFa 4co j b Thermoplastic Reinforced Thermoplastic motor bracket and discharge with built-in guide bearing.This 1/2 HP pump has a stainless —r steel top bearing and motor coupling.These are assembled with our A.Y.McDonald stainless steel motors.Two wire i single phase models include pump,motor,and 10' lead. This four inch submersible is supplied with grounded leads meeting the National Dec irical Code lN.E.C.l specrficatipns. II n The performance curve below will assist you in choosing the pump that meets your needs. APPROVED MODELS IE-30GPM OCT 10 2024 � MASON COUNTY ENVIRONMENTAL HEALT E - 30 GPM RET 3 son .i ',. : .. . 1/2 HP 1221 53 P.S.I. m 200 _. _ .... __... ._._. _ . Flush _:. . r IOU 7/2HP•4S9A6ESw Dose simplex-- 0 5 10 15- _ 20 25 30 35 40 Duplex „ _ 0_ IT 20 30 40 50 Be l0 Be -- Fpurpin 0 20 40 BO 80 100 120 7/0 160 FLOW GPM Speciflcadons LOT-30 ll2 Plastic L5 1 io94 9.52 23 __ -- -- BIGDondd SUBMITTAL INFORMATION - Stainless steel pump shall and pump shaft - Powered by A.Y.McDonald submersible motors 1/2 HP. - Reinforced Thermoplastic diffusers and impellers - 11/4'FNPT Discharge - Thermoplastic intake screen and cable guard NO-LEAD:The weighted average of the wetted surface of this no-lead product contacted by consumable water contains less than one quarter of one percent(0.25%)lead. P.D.Lovirldge Box 1Onsite Technologies,Inc. Toll Free:1-45-8 5-3622 823 daveoscam loweecom ch.com P.0.9ox 1179 Fax:1-425-335-3622 ascamnsite.com 00 Lake Stevens,WA 98258 0.Y.McDonald considers thn intornuiun en this assembly drawing mnal when published he.and option evaigbll4y.including spaifications,are subiKi tp change without notice. Submitted by: 1� _n Ip 0 o � sO� � a' U O zIL cu O 0 L — ' 3 c® G O p O � APPROVED OCT 10 2024 MASON COUNTY ENWRONMENTAIHEALTH RET i I �z�-tp Panel Wiring Diagram ryw,e Model LF1P-RF-ARA Quote#01302300 Flom Maine rNm' t2MAC.10,W N ai6.ann. 1.1 MonGl q'atlNn. GNO .. --- ..1 SMO, 1.2 u V _ iq 36°VACP10 A - nI x1 N .-- 1.3 — 1. Fw Main P.Pan4 iZ AC.10.60Hz. Mt'vm aumnnsa cro+faae BY o3x:rs. 1.5 GNG .-- ... ^1 BLOWER1B q -- - 1zMAt ,.8 L1 i *... . ..........! 18 - 114HP CB fOA ._ ....-S._.t----..._.. N .._._. ------------- BWWER ►...... -_.—._-_. ]2B 1 AC10 Le --....—..�- P S S ' BLOWER ............ .— ••----_ - 3B 12MAC 10 Lf0 MH 1.12 Lf -- 1.13 N .-_-_ x 1.14 CONTROLS __ _......._.�. CB 10A IAGO BASE LOGO 1 15 L1 N SIEMENS BE01052-iFBCBOBAI 1.15 FR 01.1T 1.15 APPROVED 1.19 OCT 10 2024 MASON COUNTY ENVIRONMENT L HEALTH z5 41 RET 1.31 P 083. 1.22 PUMP 1.33 SEMICONDUCTOR y� MOTOR CONIRCLLER 01 SIEMENS 124 aIPP 3RF315b1 1.35 EDWM N-I IW.1.09 M=N: inPaE.f of 2t VALVE Vt(S1.52) 2.2 Cat RELAY oA 92 I DEC -25CLA120 23 xw0 VALVE V2(51.54) A On REUY 03 : 0A m IDEC R12&CLAt20 2.5 Rrrvo VALVE V3(55) 2.6 P3 RELAY a : OA 4• q,1HOED 2 LA120 2] 2.8 IXPAN310N LOGO WMSION OM8 Lt N • SIEMENS 210 BED105StFBOO-0BP2 2.11 01 ALARM LIGHT R IDEC 212 HW SERIES AUDIBLE�M CP 213 A SL YD Iwl ELL SP-t 081 9ax REMOTE2.14 4 . --------- OREOUIV.12DVACALARMI 2.15 AAA� 1,5 28 TRANSFORMER 216 Signal CL2J 120V-24V 12 4OVA 2.17 FLEE _ 2 18 A F1 0m . c¢•. 8...t rv¢ <ommen SOLENOID VALVE S1 OE 219 IT -------- . ••••••-- ROVIDEDBYOTHERS 2.20 ' APPROVED SOLENOID VALVE sz 2.2' OCT 10 2024 24VACVALVE y PROVIDED By OTHERS 222 VASON"UNTYENVIRONMENTAL HEALTH RE r ( SOLENOID VALVE W cP]223 ,-WC-- C-armcn---: 24VAC VALVE PROVIDED BY OTHERS j 234 I SOLENOID VALVE Sa 2.25 •^� •_-- �•••� 24VAC VALVE yam• PROVIDED BY OTHERS 2.25 cy pyn I SOLENOID VALVE S5 �_.__---- ---------_-. 24VAC VALVE 12, rT PROVIOEDBYOTHERS 228 Kim EOW'WbOFN'1] PN.t.0 D 02 Pye2 2.of 3.1 32 Control Panel Connections 33 rol Q 3400000 P. �• XpXLmI 36 Nvm ThIBtl W6uMmt OR 3] 33 Q T }._ t • 1A ` 310 1B 20 29 t 3..............-- y..............j...............►...__._.._...._.. 9.11 a12 3.13 314 3.15 3.16 317 319 319 3.20 a21 'APPROVED ,_ MASON CO NrYENh ONMENTALHEALTH 3.2. REi 325 3.29 3.27 EOW-W60ENA: V®OLO a9e.3 of C amow Septic Deagm OSCAR X02 Pretreatment INSTALLATION&MAINTENANCE c+oar+a f PAUU JOY JOMNSON', OSCAR At-Grade Drip Distribution Systems t t 1. Installers must attend OSCAR X02 training and be certified by Dave Lowe at Low Ridge Technologies(www.lowridgetech.com)prior to installing this system. 2. Installer must review OSCAR X02 installer manual prior to system installation. 3. OSCAR X02 supply kits are available through LowRidge Technologies approved suppliers only. 4. The Treatment Tank and Discharge Tank must both be 2-compartment, State approved and sized per the OSCAR X02 manual and the onsite wastewater treatment system designer. 5. OSCAR Sand media most meet or exceed ASTM C-33 standards. 6. Install drainfield level with contour of the ground. 7. Install drainfield during dry weather and soil conditions;any soil smearing most be eliminated by hand raking. S. Tanks most have risers to the surface as required by Mason County to ensure easy access for future operation and maintenance. 9. Headworks must be in boxes accessible from the surface for future operation and maintenance. 10. Ensure my trees and shrubs are removed,grass is cut short and then scarify surface of ground in drainfield area to prep for drainfield. 11. Ensure 6"minimum cover send media over the drip irrigation tubing. 12. Install audiovisual high-water level alarm. Redundant off switch not required. 13. Flow inducer tube or block are not required for the pump, it can sit on bottom of tank. 14. Install return line from headworks back into the tee outside the inlet of the treatment tank. 15. Encase all water lines within 10' of drainfield and under my driveway/parking areas. 16. Divert all stomt water runoff and house downspouts away from on-site sewage system. 17. No curtain drains allowed within 10' of the up-slope edge or 30' of the down-slope edge of the drainfield and reserve area. 18. Inspect floats,clean filters,and test high water level alarm every 6-12 months as needed. 19. All materials and workmanship most 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 transport lines Under driveways or parking areas must be encased to prevent crushing. 23. The tanks are to be protected from vehicle traffic or traffic-rated tanks may be used. 24. The drainfield is to be protected from all vehicle traffic or other damaging factors that could compact or disturb the soils. 25. The preferable cover planting for subsurface drip is turf or grass,or non-invasive groundcover plants. It is recommended to install an optional jute mat upon completion of the drainfield to prevent erosion and then seed with grass immediately. Other options include a thin layer of mineral soil low in organic content(<10%organics)and grass,a thin layer of crushed or washed rock for wind erosion protection,or a thin layer of bark or wood chips. 26. Do not cover the drainfield with organic mix(manufactured topsoil from compost)or filter fabric. 27. The homeowner should ensure no vehicle traffic,roto-tilling or digging in the area of the drip field to prevent damage to the drip tubing. Also,invasive plant species should not be allowed. 28. Home/property owner is responsible for all property lines,comers,surveys,encroachments,etc. 29. Owner Please Note: When you begin using your septic system,contact your septic installer to discuss setting up a schedule for your required Operation&Maintenance. APPROVED OCT 10 2024 MASON COUNTY ENVIRONMENTAL HEALTH to RET OSCAR at-grade drip drainfield design calculations Basal Area Calculations: Base Design Criteria: 360 gpd design flow,soil type 5 (0.4 gpd/ft2),sloped site(5%slope) Basal area required=daily design flow+soil loading rate 360 gpd+0.4 gpd/ft2=900 sq.ft. Coil length=6 coils @ 5'diameter(6 x 5'=30')with 24"coil spacing 5 x 2=10'=40' Minimum shoulder width @ 6"(2 x 6"=1')=1' Minimum side slopes at 1: 1 slope @ 6"(2 x 6"= V)=1' Minimum basal area length=coil length+shoulder widths+side slopes=40'+1'+V=42', use 45' Basal area width=required basal area+minimum basal length=900 sq. }X4 tkOVED Basal area dimensions=45'x 20'(900 s.f.) 1"OCT f 0 2024 MASON COUNTY ENVIRONMENTAL HEALTH Media: RET OSCAR drainfield:ASTM C-33 sand media:as per Washington Department of Health's Recommended Standards and Guidance for Intermittent Sand Filters. Supplies/Control Panel: • OSCAR X02 Control Panel: The LFSP-RF-AR or ARA control panel shall be used to operate the timed dosing sequencing of the OSCAR-XO2. Timer settings for the OSCAR-XO2 are short and very frequent(3 minutes off and 30 seconds on). The supply line needs to drain between doses, so the"on time" may need to be increased to compensate for filling the supply line prior to each dose. Each C1SCAR-X02 unit will Include: • LF1P-RF-ARA control panel c . • LOT-30,1/2 hp, 120 volt pump F • Hi-Blow Aerator, HB-80(80 liter/minute) • Hi-Blow diffusers • 05-50 or OS-100 Coils r • PVC fittings and drip tubing adapters °10 +0 PAULo JOY INSON • HWN-.7-RF automatic headworks "fC F. • Solid Y.inches poly tubing for connections • 2 float switches rJ�� Headworks: HWN-.7-RF • /inches Arkal disc filter,mesh, 130 micron • %inches Arad flow meter Three oil filled pressure gauges(0-100 psi) • 5 Netafim normally closed solenoid valves(Model 80) OSCAR Cover Options: There may be a desire to cover the OSCAR with something additional to the specified ASTM C-33 sand. The intent is not to have too much additional cover over the final C-33 sand layer. Placing too much cover will inhibit plant root growth. Because the C-33 sand is sub-surface irrigated,grass and other ground cover will grow rapidly,forming a firm protective cover over the OSCAR.At the end of the first growing season the C-33 sand layer will be as firm as native soil to walk on. Cover Options include: • Landscaping jute mat with grass seed or ground cover plantings • Thin layer of mineral soil low in organic content(<10%organics) • Thin layer of crushed or washed rock for wind erosion protection • Thin layer of bark or wood chips Do Not Cover C-33 Sand drainfield with: • Organic mix(manufactured top soil from compost) • Filter fabric OSCAR authorized dealer supply kit contact Info: • H.D. Fowler,contact Jacob Gober(Tumwater) phone:(360)459-7300 • Ferguson Waterworks(Silverdale)contact Zach or Daryl 360-697-1510. • Iconix Waterworks,(Tumwater)office (360)539-7518 APPROVED OCT 10 2024 MASON COUNTY ENVIRONMENTAL HEALTH RET --------- ------� a w N i i t y I J yr o o / y I 3 t � r --- J; H101M 1VS78 APPROVED OCT 10 2024 MASON COUNTY ENVIRONMENTAL HEALTH RET s N N N N Z F G w N C I c�- ym Y I G H I N i � 0 ♦ q x r W iY � YN C $B N � I Lr ICI ri 6 � i yy � k _ Imo, o v W H APPROVED o OCT 10 2024 MASON COUNTY ENVIRONMENTAL HEALTH RET �y�1b X02 Tanks v3 toad Gstbn tow Gahm Ll to f l Treatment tank Discharge tank Introduction: The OSCAR-XO2 treatment system is comprised of two systems: the X02(a septic chamber,aeration chamber,clarifier, and pump chamber) and the OSCAR:coils,C-33 sand, reverse flush headworks,and control equipment. Wastewater is collected in the septic chamber where gross solids are separated.The waste stream is aerated in the aeration chambers.Aerated effluent passes though the clarifier then into the pump chamber.The expected waste strength will be 30 mg/I C80135 and 5 mg/I TSS. Effluent is dosed through a 120 mesh disc filter to OSCAR coils,installed in ASTM C-33 sand. Effluent discharged from the coils is treated by the sand prior to infiltrating into the receiving soil. Final discharge is expected to reach 2 mg/l CBOD, 1 mg/l TSS,and 36 FC/100 ml of effluent, meeting Treatment Level A.The X02 tanks can only be used with OSCAR coils. APPROVED OCT 10 2024 MASON COUNTY ENVIRONMENTAL HEALTH RET of A IQ Design: The single family residence packages are designated as: OSX02.240, OSX02.300, OSX02.360, OSX02.450, OSXO2.480, and OSX02-600 and have the corresponding design flows of 240, 300, 360, 450, 480, and 600 gallons per day. The 0SX02-240, 300, 360, 450, and 480, are standard packages. Design flows greater than 480 gallons per day are considered custom and will require design assistance from Lowridge Onsite Technologies, Inc. For the standard single family residence OSCAR-XO2 package parts list see the appendix. The X02 can only be used with OSCAR coils. All tanks must be approved by Washington Department of Health. An OSCAR-XO2 is two technologies combined together as one. The system can be designed in increments of flow up to 3500 gallons per day. The OSCAR has different sizing criteria than the X02. The X02 is designed in increments ranging from 500, 750, 1125, 2250, 3,000, to 3,500 gallons per day (see Table 1-2). The OSCAR is designed in increments of 62.5 or 125 gallons per coil per day, depending on coil model (see Tables 2 and 3). Consequently, a design for a 7 bedroom system (840 gpd) would incorporate a 1125 gallon per day XO2 plus 14 OS-50 OSCAR coils (875 gpd). X02: Treatment Tank: The partition wall between the first and second compartment of the treatment tank must have a 4 inch by-pass hole or the bottom of the tee baffle located between 40% to 60% of the liquid depth. Discharge Tank: The patrician between the first and second compartment of the discharge tank must have a 4 inch by-pass hole located at least 18 inches above the floor of the tank and no more than 27 inches between the bottom of the by-pass hole and floor of the tank. Recommended hight is 18 inches, if possible. Table 1-2 among 500 gpd 660-670 'i 330-340 660-670 330-340 80 Vm '. 750 gpd 1,000 500 1,000 500 . 120 Vm or more 1125 gpd 1,500 : 750',, 1500 750 : 180 Vm or more __-........-- __. .loco grue 3.00p 1.50p 3.000 1.500 '� 38g Vm or mae 3.000 gad ._ D ,4_ ..0 1.0 _.. 3.000 4,000 2,000 re 480 Vm or mo % 01 gpd 4,500 3,0001 4,500 !, 3,000 ' 5W/m or more APPROVED OCT 10 2024 MASON COUNTY ENVIRONMENTAL HEALTH EI RET