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HomeMy WebLinkAboutOWTS Design Plansi i i i i INSTALLED LOCATION OF CONTROL PANEL i i INSTALLED UNDERGROUND ELECTRICAL AND \ CONTROL WIRES IN CONDUIT \ WITHIN SEWER PIPE TRENCH. \ \ 1.25" PRESSURIZED \ MANIFOLD PIPE. PRESSURE DOSE TRANSPORT PIPE. INSTALLED 1.25 SCHD-40 W/ 3.0' MIN. DEPTH OF BURY.RNlsN 59ass BED PIPE W/ CL -6 ROAD BASE INSTALL AT MIN. 2.55 TO ALLOW DRAIN BACK TO TANK. 00' \ \ .50' TO DI 5 .5 50' 1.25' , IS 59 .5 CROWN FIELD TO DIVERT SURFACE WATER ELE:5649.0± SCREENED BACKFILL -� NATIVE SOIL QICK-4 STANDARD INFILTRATOR OR EQUAL B10 DIFFUSER SPRAY SHIELDS USTOM PERFORATED PIPE WITH RrFTCESWF12 WITH PUSH IN STAPLES / INTERMITTENTS ND FILTER LAYER EFFECTIVE J E 0.25-0.60 MM, ITH UNIFORM COEF. =<4.0. USE CONICRE E SAND -ASTM -33. MACHINE GRAPHIC SCALE 5 5 5 ( IN FEET) 1 inch= to ft. SCARIFY/TILL BOOM SURFACE AND EXCAVATION SID WALLS / INSTALLED / 2 -WAY CLEAN OUT INSTALLED �\ 4" GRAVITY SEWER PIPE \ '; % / wx \ INSTALLED \ \ TIE-IN EJECTOR PUMP PIPE \ FROM LOWER LEVEL \, CONNECT 1.25'. TRANSPORT LINE Design Calculations OwTS TO 1.25" PRESSURE MANIFOLD. TRANSPORT PIPE INVERTA MIN. OWTS SYSTEM NOTES 2" HIGHER THAN INVERT OF MANIFOLD TEE CONNECTION. USE Installation of an OWTS with a minimum 4 -bedroom capacity. 45"OR 22.5' FITTINGS. From the newly effective State Regulation 43: 1. ALL MATERIALS AND INSTALLATION SHALL CONFORM 70 STATE AND COUNTY ONSITE Minimum population based on 4 bedrooms = 8 persons. WASTEWATER TREATMENT SYSTEM (OWTS) REGULATIONS. 1.25" SCHD-40 PVC PRESSURE MANIFOLD W/ INDIVIDUAL Gallons per day per person =75 gal/person/day, No peaking factor 1.25" TEES OR ELBOWS TO 1.25" CUSTOM PERFORATED Max. Design flow (Qd)gallons/day = (# of people) x (avg. flow)gal/person/day. 2. IT IS THE RESPONSIBILITY OF THE CONTRACTOR 70 CONTACT ALL UTILITY COMPANIES FOR DISTRIBUTION PIPE FIELD LOCATIONS OF UTILITIES PRIOR TO CONSTRUCTION AND EXCAVATION. CHAMBER END CAP Design flow Qd = 8'75=600 gpd 3. ALL SEWER LINES TO BE SDR -35 BEDDED IN CLASS 6, SDR -26 BEDDED IN SCREENED NATIVE Septic Tank Design: Use a 1500 gallon, three compartment septic tank with a bio -tube dosing assembly in OR SCHEDULE 40 P.V.C. PIPE BEDDED IN SCREENED NATIVE MATERIAL UNLESS NOTED the third chamber. Total tank capacity is 2000 gallons. OTHERWISE. Sub Surface Conditions and Testing: 4. INSTALL A TWO-WAY CLEAN OUT ON THE SERVICE LINE FROM THE HOUSE. Subsurface soil investigations and USDA soil texture method tests were performed by Sopris Engineering. 5. THE CONTRACTOR SHALL ENSURE ALL SEWER LINES AND SEPTIC TANKS ARE WATERTIGHT. The soils in the area of the proposed absorption field were sampled and characterized by application of ANY POTENTIAL PLUMBING LEAKS SHALL BE REPAIRED TO AVOID EXCESSIVE WATER the USDA soil texture method test. The soils were tested to determine the hydraulic loading rate and to ENTERING THE SEPTIC SYSTEM. confirm the appropriate absorptive surface level suitable for an intermittent sand filter treatment system 6THE SEPTIC TANK SHALL in native soils. The soils below nil to 3 inches of topsoil consist of medium dense gravelly loamy sand . L BE INSTALLED LEVEL ON COMPACTED EARTH. INSTALL WATERTIGHT to RISERS AS NECESSARY L BRING ALL REQUIRED ACCESS POINTS AR THE FINISHED SURFACE sandy laom material to 0.3 to 6 feet below the surface. The soil appears to be consistent across the site. GRADE. The native soils sampled from 2-3 feet below the surface are characterized as a soil type 1 consisting of 7 A SANITARY BAFFLE TEE IS REQUIRED ON THE SEPTIC TANK INLET AND OUTLET. INSTALL THE loamy sand to sandy loam texture with moderate granular structure. This soil has an effective loading rate INLET AND OUTLET TEES PLUMB AND IN A POSITION 70 ALLOW EASY INSPECTION AND for conventional soil treatment of 0.0.8 Gal/S.F./day for a level 1 conventional treatment system. Due to MAINTENANCE OF TANK FROM THE TANK RISERS. limited area and to provide optimal treatment an intermittent sand filter is recommended. No free water �� TYPICAL YARD LANSCAPED SURFACas encountered in excavations on site. Groundwater levels are expected [o be below 10 feet from the g, AN EFFLUENT FILTER IS REQUIRED. INSTALL A 4" EFFLUENT FILTER WITH THE TANK OUTLET ����/ OR AGGREATE PAVED SURFACE xisting surface grades. SANITARY TEE OF THE SEPTIC TANK OR APPROPRIATE FILTER SYSTEM WITH A DISCHARGE J i\�i /� • The soils are suitable for the installation of the sand filter treatment bed system that will be fully pressure PUMP ASSEMBLY. THE GRAVITY OR PUMP SYSTEM FILTER SHOULD BE INSPECTED EVERY SIX 6" MIN. -� dosed.. MONTHS. THE EFFLUENT FILTER SHALL BE MAINTAINED AND CLEANED WHEN THE TANK IS EXCAVATED MATERIAL COMPACTED An additional soil evaluation will be performed during construction to verify the soils in the proposed field PERIODICALLY PUMPED OR AS NECESSARY. INSTALL A SUITABLE EXTENSION ON THE FILTER TO 90% STANDARD PROCTOR excavation. WITH A HANDLE TO BE WITHIN 6" BELOW THE ACCESS LID. Intermittent Sand Filter Treatment Unit/ Absorption System Design: 9. THE TREATMENT BED MUST BE MARKED AND PROTECTED 70 PREVENT DAMAGE FROM 4SUITABLE BACKFILL OR CLASS 6 ROAD BASE VEHICULAR AND LIVESTOCK TRAFFIC. The treatment/absorption field is designed based on utilizing the effective Long Term Acceptance Rate ���. ��/ 4• (LTAR) for an intermittent sand filter treatment system utilizing pressure dosed distribution laterals and 10. THE ENTIRE TREATMENT BED SURFACE MUST BE SODDED OR RE -VEGETATED WITH GROUND 4„ gravelless chamber units as spray shields.. The new treatment system will consist of a fully pressure dosed COVER. sand filter Treatment bed System with a 36 -inch layer of filter sand (ASTM -33, "Concrete sand"). TRENCH CROSS-SECTION FOR il. THE TREATMENT BED SURFACE MUST BE CROWNED 70 DIVERT SURFACE DRAINAGE AWAY Long Term Acceptance Rate (LTAR) FROM THE BED. SDR -.35 , HDPE OR S C H E D - 40 PIPES Considering the application of the new state regulation 43: Receiving Wastewater Treatment Level 1; loading rate for sand filter is (1.0 gal./S.F./day) for the 11. THE DIMENSIONS SHOWN ON THE PLAN INDICATE MINIMUM AREA AND SEPARATION N.T.S. minimum 36" depth of treatment media; DISTANCES FOR THE OWS COMPONENTS. Loading factors; (Table 10-2, pressure dosed application bed = 1.0) 13. THE BED SHALL BE LEVEL WITH DISTRIBUTION PIPES INSTALLED FOR EQUAL PRESSURE A(sf) = Rd.: A =Area; DISTRIBUTION. LTAR LTAR = 1.0 Gal/S.F./day for ASTM -33, "Concrete sand" Qd = flow (gal/day) = 600 gpd 14. THE BED SHALL BE OVER EXCAVATED TO ALLOW PLACEMENT OF THE SPECIFIED SAND FILTER GRAPHIC SCALE LF.1=1.0 pressure dosing TREATMENT MEDIA LAYER. THE BOTTOM SURFACE AND SIDEWALLS OF THE TRENCH TO BE A(sf) = 600 gpd x 1.0 = 600 S.F. SCARIFIED AND RAKED AS NECESSARY PRIOR TO PLACEMENT OF THE LEVELING SAND. o s 'o zD 5 1.0 Gal/S.F./day 15. THE TREATMENT BED SHALL BE CONSTRUCTED WITH CHAMBER UNITS PLACED OVER THE A 32' by 19' bed was excavated to a minimum 3.5' depth below finish grade and backfilled with 36 -inches SPECIFIED SAND LAYER FOR USE AS SPRAY SHEILDS. THE CHAMBERS, SAND AND DISTRIBUTION PIPES SHALL BE COVERED WITH FILTER FABRIC TO THE SIDES OF THE IN FEET) of ASTM -33, "Concrete sand". EXCAVATION. 4 runs of custom perforated distribution laterals were installed on top of sand layer and covered with 36 1 inch = 10 ft. Quick -4 chambers in 4 rows with 7 chamber units per row for use as pressure dose spray shields, as 16. THE MINIMUM COVER OVER THE TOP OF THE CHAMBER SPRAY SHIELD UNITS SHALL BE 12 delineated on the plan. The bed is dosed from the simplex high head distribution pump system installed in INCHES NOT TO EXCEED 18". the third compartment of the septic tank. 17. THE BED CHAMBERS WILL BE BACKFILLED 70 THE SURFACE WITH EXCAVATED MATERIAL INSTALLED 3 -COMPARTMENT 1500 -GALLON CONCRETE SEP77C TANK WITH PRECAST RISER ADAPTERS (VALLEY PRECAST ITEM 11500t-3CP-HH) INSTALLED WITH (3) 24" DIA. BY 24" DEEP RIBBED PVC RISERS WITH LIDS AT THE SURFACE INSTALLED ORENCO SIMPLEX EFFLUENT PUMP ASSEMBLY. (PVU57-1819-L) W/P300511 PUMP), W/ 1.25- DISCHARGE ASSEMBLIES. DEPTH TO TOP OF TANK FROM PROPOSED GRADE IS APPROXIMATELY 2. INSTALL RISER LID O FINISHED GRADE /-INSTALLED 1 1/4" PVC SCHD-40 CUSTOM PERFORATED PIPE DISTRIBUTION LATERALS WITH 3/16 -INCH DIA. ORIFICES EVERY 2.5 -FEET, THE TOP OF THE ABSORPTIVE SAND SURFACE SECURED WITH STAPLES . ORIFICES BETWEEN THE FIRST AND LAST ARE ORIENTED UPWARD (12 O'CLOCK). FIRST AND LAST 3/16" ORIFICES ARE ORIENTED DOWNWARD AT BOTH ENDS OF DISTRIBUTION LATERAL TO ALLOW DRAINAGE OF OUT OF PIPE. ABSORPTION/TREATMENT FIELD W/ PRESSURE DOSED BED ISTALLED 28 QUICK -4 IN 4 ROWS WITH 7 CHAMBERS PER ROW FOR A TOTAL ABSORPTION AREA OF 600 S.F. THE SYSTEM IS PLUMBED FOR EQUAL PRESSURE DISTRIBUTION. THE CHAMBERS SHALL BE INSTALLED AT LEVEL GRADE THE BOTTOM OF THE BED WAS EXCAVATED TO MIN. DEPTH OF 2.5 INSTALLED CHAMBER END CAP FEET WITHIN THE NATIVE GRAVELY LOAMY SAND dr BACKFILLED WITH A ON ALL END CHAMBERS MINIMUM 36 -INCH SAND FILTER LAYER. INSTALLED WITH A MIN. 12" NATIVE BACKFILL COVER OVER TOP OF CHAMBERS. SEPTIC FIELD FINISH SURFACE APPROX. 6" ABOVE ADJACENT GRADES. - INSTALLED 4" RISER PIPE INSPEC77ON PORT AT EACH END CHAMBER (TYP.) 1.250 FLUSH BALL VALVE ON END OF EACH DISTRIBUTION LATERAL. i INSTALL ASSEMBLY BELOW EACH / INSPECTION PORT (TYP. END EA. ROW) / / / � o m o is a 1+00 0+50 SEPTIC ALIGNMENT MAIN FLOOR GRAVITY PROFILE EXISTING GRADE -- -6.96% - - - - - -- 1500 GALLON THREE COMPARj MENT SEPTIC TANK WITH HIGH HEAD PUMPI Pamlelers DadarCe Maemtry9ee 125 Iodn.a l=Lm9n 12 NN T pal Ras citing 44 T ...... rl L'a.9io 12 .0.. DSMbula.Ixt MaOtl None MVE1DMwLa 5 Nel HaMoltl Lengm t0 NN f/a,aaN RDepaa 40 gdPltgMi n ernes mLzNrds P.,cw Lm•ral3p Nat LdaM Pipe pwa Gass 40 Coated Pee Sim V15 .M1 O,are Sca 6 aM.z Deace30abp 25 Net Radwal Hand 2 been Fb ntsnf rWie Mo.. I gn'Fndnn Losaea a 4.1 cakulmona x wnw„m Fla. Rxe per Gi¢ aa2 ofin Nunlwolaffiaope,Zan. 52 y Tena R.R. nae Zone 323 eym Sx Numbm dLaNade Dalzana 4 e x FN. me"ead t••^x Odka 29 x 6 T ... s,.a M" kg De ! Frnctwnal Need! Losa•f Leastbr..h Ditrnasga T.3 Nd L05S in pM 17 het Loss In..0 Yana go Poa Lmemaan.da a.4 Nd 01 Lossm�e,ale ken ar9lr Fla.mata 00 " M Facial Les... 00 NH Rte Valwr. ,W tlTnnawa Un• as gals daaNrdd as gena WdLahuals W Z.. 93 gals TDLn Vdm ua Ila gas Minkarnt Pram F egulretnenb Dadwn.aRals Y.3 .en Tend Dtnamlc Heb 5.5 ken CROWN FIELD TRENCH TO MAINTAIN SUITABLE VEGETATIVE COVER DIVERT SURFACE WATER TOPSOIL1.25" SCHD-40 PVC L LEVEL FF:5950.o EXISTING GRADE DISTRIBUTION MANIFOLD \, fl 12"-_ 8 MIN. AX UNDISTURBED EARTH1 .. _. �ZL SCREENED BACKFILL CUSTU ME PERFORATED PRESSURE PIPE WITH .25"7EECONN NATIVE SOIL 36" \ ORIFICES AT 12 O'CLOCK ECTION \\\ SECURE PIPE WITH PUSH IN INTERMITTENT SAND FILTER LAYER EFFECTIVE SIZE QUICK -4 INFILTRATOR STAPLES 0.25-0.6 MM, WITH UNIFORM. COEF.=<4.0 USE OR EQUAL BIO DIFFUSER �� , ; CONCRETE SAND -ASTM -33 SPRAY SHIELDS "_�\\, ����� �\ MACHINE COMPACT AND LEVEL TOP SURFACE PRESSURE DISTRIBUTJN 12' -MIN. PIPE CONNECTED THROUGH END AP NOTE: NATIVE GRAVELLY LOAMY SAND SOIL TO CUSTOM PERFORATED DISTRIEUT)N THE INTERMITTENT SAND FILTER BED MUST BE LEVEL. INSTALL CHAMBERS WITH INLETAND WITH COBBLES LATERA APE END CAPS OVER SAND LAYERT FOR USE AS SPRAY SHEILDS. INSTALL INDIVIDUAL DISTRIBUTION LATERALS TO THE HEAD OF EACH CHAMBER ROW FROM A MAINIFOLD SCARIFY/TILL BOTTOM !UFACE AND CONNECTING EACH CHAMBER ROW. CUSTOM PERFORATED PIPE TO BE LAID ON TOP OF EXCAVATIO) DE WALLS THE SAND LAYER WITH ORIFICES ORIENTED UPWARD EXCEPT THE FIRST AND LAST ORIFICES 70 BE ORIENTED DOWNWARD. INSTALL A 4" VERTICAL INSPECTION RISER FROM THE MOLDED CUT OUT ON THE LAST CHAMBER IN EACH ROW. INSTALL A BALL VALVE AT THE END OF THE DISTRIBUTION LINE ACCESSIBLE FROM THE INSPECTION PORT 70 ALLOW FLUSHING OF THE LINE. THE VALVE IS CLOSED FOR NORMAL OPERATION. PRESSURE DOSED INTERMITTENT SAND FILTER SYSTETM /r17 7H CHAMBER ,SPRAY SHEILDS VOID OF ROCKS. THE BACKFILL MATERIAL SHALL NOT EXCEED 3" DIAMETER. A MINIMUM 4" DEPTH OF TOPSOIL IS 70 BE PLACED ABOVE THE BACKFILL TO THE FINISH SURFACE GRADE. 18. BALL VALVES (SIZE PER PLAN) SHALL BE INSTALLED ON THE TERMINAL ENDS OF THE PERFORATED DISTRIBUTION PIPE JUST BELOW THE 4" INSPECTION PORTS. 19. ALL INSTALLATION OF THE CHAMBER UNITS SHALL BE IN CONFORMANCE WITH THE MANUFACTURES INSTALLATION INSTRUCTIONS. W THE ABSORPTION FIELD SHALL BE INSTALLED PER THE REQUIRED SETBACKDISTANCES: F- 10 feet from any property line. 25 feet from any potable water supply line. 20 feet from any occupied dwelling. 100 feet from any well, spring or cistern. m �11111•I NIIIIINI IN IliiilI II II11n1 1111111,„UNN MENu11NOR N1u111111111111 ©,N�1711�u11I III ® menmilli MINIIIIIInII®IN 1 I1N1IIIIINIlI �IIIn11II11 IIu11 1111111111111qu N1�NIN I IN lip IN I 1111111111 �� 1500 Gallon Top Seam Three Compartment �1��111 A2'3 ISI n 11111 n��ii11 pp11111 iuI1111 IN INI11lIIINle 11�11HNH1� �.I�n►111��n�� 111I1�� IH11 �111��111� IIII IN►1111111111 with High Head Pump n nIn111111111�n11►11n111111n1n IIINIIN� II� NImIII;11M NIM111111IIIIIIIIIII MININININFEM iiii�iii�Niu 1 I I I in 'iS00ir-UP4011 01011111 Brian ToW VON11Axo) LU ---------------------- DES1Gti NOTESCY.AiI� ft `v Datipr Dar Dertammlce test Dar ASTY off �l c122T Top .wta. o,.o ST.75 ft' fc a 28 dale oofio . - 6,0X0 M Z LLJ • ,i to q M get gmwi S' rah amw is bed ie W Pea accented FEt` F • a, tank to M 111,, Me, that, a>aes m axa au teal 24^ a ..... ... ... .....,. -. 24" m �.•--r--•-s--.�a�-. -tee LJ nn .chatwc .ornPact.d Top • t"wlnMl, d md" t ge In ua.d rr • � b all, provldM lrq• elonas ora • me E>mm.o mwm w da.oca.d vA 1lIlRtta4 I to A, toad „Nh aotr Pdr to "" fVukr W N s•rsta fpr 1111,1110 n x111, g( �I U" vote, tobla Nt. Intel 2'Wo 9roda Math C1644 -D6 Im Meanest .J l wnnedars Well M GdNt MtnNfiatl abate DIDa ,[ • DNI.d crr,pl•b r lh intrad *Inq • Sacondo so6ty .moan o 7mNe .Ith PVC .r s 4 III r It IF ALLOWABLE BURT (Baud as Water Table) WATER TABLE • - .- . • �.... - D' - D• s - o^ oa r -o^ r -a' Section boo tend inveems, afflemet r - or 4' - D^ View 0 LWAM IT Ir -FW on O DRY 4' - 0, �RaWK OMNOM hommom (11111+Y. Wed. • w P�•m1 •S'ANIM GV/1f/WdH faf rellll:NANCa 15, ong • a' Naa . �wq r re ger day« oto Tana 56^ ONos vied 56 73' 162- ,8 9z I'J6 90 5fI5 9a _..7 9N 2025 9m S 2C As 16240 lbs. 2IM0 abs Z 0 � m>n a�asz RL='7 X Fn o VALLEYIM (719)386-3TO amovift000mi Z tJ lentet mm - Pamlelers DadarCe Maemtry9ee 125 Iodn.a l=Lm9n 12 NN T pal Ras citing 44 T ...... rl L'a.9io 12 .0.. DSMbula.Ixt MaOtl None MVE1DMwLa 5 Nel HaMoltl Lengm t0 NN f/a,aaN RDepaa 40 gdPltgMi n ernes mLzNrds P.,cw Lm•ral3p Nat LdaM Pipe pwa Gass 40 Coated Pee Sim V15 .M1 O,are Sca 6 aM.z Deace30abp 25 Net Radwal Hand 2 been Fb ntsnf rWie Mo.. I gn'Fndnn Losaea a 4.1 cakulmona x wnw„m Fla. Rxe per Gi¢ aa2 ofin Nunlwolaffiaope,Zan. 52 y Tena R.R. nae Zone 323 eym Sx Numbm dLaNade Dalzana 4 e x FN. me"ead t••^x Odka 29 x 6 T ... s,.a M" kg De ! Frnctwnal Need! Losa•f Leastbr..h Ditrnasga T.3 Nd L05S in pM 17 het Loss In..0 Yana go Poa Lmemaan.da a.4 Nd 01 Lossm�e,ale ken ar9lr Fla.mata 00 " M Facial Les... 00 NH Rte Valwr. ,W tlTnnawa Un• as gals daaNrdd as gena WdLahuals W Z.. 93 gals TDLn Vdm ua Ila gas Minkarnt Pram F egulretnenb Dadwn.aRals Y.3 .en Tend Dtnamlc Heb 5.5 ken CROWN FIELD TRENCH TO MAINTAIN SUITABLE VEGETATIVE COVER DIVERT SURFACE WATER TOPSOIL1.25" SCHD-40 PVC L LEVEL FF:5950.o EXISTING GRADE DISTRIBUTION MANIFOLD \, fl 12"-_ 8 MIN. AX UNDISTURBED EARTH1 .. _. �ZL SCREENED BACKFILL CUSTU ME PERFORATED PRESSURE PIPE WITH .25"7EECONN NATIVE SOIL 36" \ ORIFICES AT 12 O'CLOCK ECTION \\\ SECURE PIPE WITH PUSH IN INTERMITTENT SAND FILTER LAYER EFFECTIVE SIZE QUICK -4 INFILTRATOR STAPLES 0.25-0.6 MM, WITH UNIFORM. COEF.=<4.0 USE OR EQUAL BIO DIFFUSER �� , ; CONCRETE SAND -ASTM -33 SPRAY SHIELDS "_�\\, ����� �\ MACHINE COMPACT AND LEVEL TOP SURFACE PRESSURE DISTRIBUTJN 12' -MIN. PIPE CONNECTED THROUGH END AP NOTE: NATIVE GRAVELLY LOAMY SAND SOIL TO CUSTOM PERFORATED DISTRIEUT)N THE INTERMITTENT SAND FILTER BED MUST BE LEVEL. INSTALL CHAMBERS WITH INLETAND WITH COBBLES LATERA APE END CAPS OVER SAND LAYERT FOR USE AS SPRAY SHEILDS. INSTALL INDIVIDUAL DISTRIBUTION LATERALS TO THE HEAD OF EACH CHAMBER ROW FROM A MAINIFOLD SCARIFY/TILL BOTTOM !UFACE AND CONNECTING EACH CHAMBER ROW. CUSTOM PERFORATED PIPE TO BE LAID ON TOP OF EXCAVATIO) DE WALLS THE SAND LAYER WITH ORIFICES ORIENTED UPWARD EXCEPT THE FIRST AND LAST ORIFICES 70 BE ORIENTED DOWNWARD. INSTALL A 4" VERTICAL INSPECTION RISER FROM THE MOLDED CUT OUT ON THE LAST CHAMBER IN EACH ROW. INSTALL A BALL VALVE AT THE END OF THE DISTRIBUTION LINE ACCESSIBLE FROM THE INSPECTION PORT 70 ALLOW FLUSHING OF THE LINE. THE VALVE IS CLOSED FOR NORMAL OPERATION. PRESSURE DOSED INTERMITTENT SAND FILTER SYSTETM /r17 7H CHAMBER ,SPRAY SHEILDS VOID OF ROCKS. THE BACKFILL MATERIAL SHALL NOT EXCEED 3" DIAMETER. A MINIMUM 4" DEPTH OF TOPSOIL IS 70 BE PLACED ABOVE THE BACKFILL TO THE FINISH SURFACE GRADE. 18. BALL VALVES (SIZE PER PLAN) SHALL BE INSTALLED ON THE TERMINAL ENDS OF THE PERFORATED DISTRIBUTION PIPE JUST BELOW THE 4" INSPECTION PORTS. 19. ALL INSTALLATION OF THE CHAMBER UNITS SHALL BE IN CONFORMANCE WITH THE MANUFACTURES INSTALLATION INSTRUCTIONS. W THE ABSORPTION FIELD SHALL BE INSTALLED PER THE REQUIRED SETBACKDISTANCES: F- 10 feet from any property line. 25 feet from any potable water supply line. 20 feet from any occupied dwelling. 100 feet from any well, spring or cistern. m �11111•I NIIIIINI IN IliiilI II II11n1 1111111,„UNN MENu11NOR N1u111111111111 ©,N�1711�u11I III ® menmilli MINIIIIIInII®IN 1 I1N1IIIIINIlI �IIIn11II11 IIu11 1111111111111qu N1�NIN I IN lip IN I 1111111111 �� N 11 III �1��111 A2'3 ISI n 11111 n��ii11 pp11111 iuI1111 IN INI11lIIINle 11�11HNH1� �.I�n►111��n�� 111I1�� IH11 �111��111� IIII IN►1111111111 In n nIn111111111�n11►11n111111n1n IIINIIN� II� NImIII;11M NIM111111IIIIIIIIIII MININININFEM iiii�iii�Niu 1 I I I in ' �\ I RE T �rY O 28377 ,'AIL LU D Q H Z CD 00 m ul m W Z SC CT, U LU qct M 0 Cl U CJ J J Z C4 LuQ 111 40 M Z -A mom - I-UQo CT, Ln 0) q 1 Z Z zQ�o W O 2Zoo03 0 Co 03 _j J 'n IX IL N < U U a 0 V ^ J N O KnowwhaYsb%'OW. DATE: 08-02-17 Call before you dig. JOB NO. 15147.01 CALL 2 -BUSINESS DAYS IN ADVANCE EFORE YOU DIG, GRADE, OR EXCAVATE SHEET C1 FOR THE MARKING OF UNnFRm awn O 00 U Q O LU -L Z LLJ LJ O Z 0 CLQ X Fn Z Z tJ W O tY cn v CO Q 0 Of 0 �< V KnowwhaYsb%'OW. DATE: 08-02-17 Call before you dig. JOB NO. 15147.01 CALL 2 -BUSINESS DAYS IN ADVANCE EFORE YOU DIG, GRADE, OR EXCAVATE SHEET C1 FOR THE MARKING OF UNnFRm awn