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HomeMy WebLinkAboutpitkin.eh.246720100004 (2006)ELEVATION OF SEPTIC AND DOSING TANK TO BE DETERMINED BY THE ELEVATION OF THE SEWER LINE FROM THE BUILDING PROPOSED BUILDING 4" CLEANOUT SEPTIC TANK LIDS ADJUST TO GRADE FLEXIBLE COUPLING 4 -INCH SDR35 PVC SEWER AT MINIMUM 1/4" PER FOOT SLOPE IA4" PVC PIPES, LEVEL MIN. 12" TOPSOIL COVER, GRADE TO DRAIN t 3 -INCH SOLID S PIPE FROM DOSII 3" CHECK VALVE CONCRETE MANHOLE RISERS AS NEEDED FLEXIBLE SEPTIC TANK, aA SIZE PERLJ 11 PLAN SHEETS `\ 4 -INCH SDR35 PVC SEWER AT \ DOSING TANK MINIMUM 1/4" PER FOOT SLOPE (SEE DETAILS) RESIDENCE PROFILE Not to Scale 8 -OZ. MIRAFI GEOTEXTILE FABRIC COVER OVER GRAVEL MIN. 6" OF GRAVEL BELOW PIPES /AND 2" OF GRAVEL ABOVE PIPES EXISTING GRADE (VARIES) 1 GRADE (VARIES) - f RESIDENCE LEACH FIELD SYSTEM, SEE DE AJLS 3" SCH. 80 PVC PIPE SLOPE TO DRAIN BACK TO DOSING TANK ALARM W/ STROBE "HIGH LEVEL ALARM" EJECTOR PUMP A HIGHEST FLOAT SWITCH REQUIRED ABSORPTION AREA = (1,400 gpd) (NORMALLY OPEN) In the building In an easily accessible 'PUMP ON" REQUIRED SEPTIC TANK VOLUME = 1,400 gpd " 30 hours / 24 hours = 1,750 gallons MIDDLE FLOAT SWITCH EJECTOR (NORMALLY OPEN) PUMP B "PUMP OFF"COIItROL 0�1- deep - 29" PANEL LOWEST FLOAT SWITCH - i (NORMALLY CLOSED) ^ tJ PUMP CONTROL WIRING SCHEMATIC BRASS OR CAST IRON CAP AND COVER PROVIDE ADEQUATE SUPPORT FOR PIPE BEFORE AND DURING BACKFILLING CONCRETE SUPPORT ENCASE WYE IN CONCRETE CLEANOUT DETAIL Not to Scale RESIDENCE LEACH FIELD DETAIL Not to Scale DOES NOT PUMP CONTROL LOGIC SCHEMATIC ESIDENCE ISDS DESIGN CALCULATION FOUR LATERALS: 1-Y4" SCH. 80 PVC PIPE WITH ELEVEN 1/4' HOLES IN 30'-0" LATERAL: 1" FROM EACH END AND SPACED AT 35.75" C -C IN PIPE BOTTOM, SET LEVEL (TYP) DESIGN FLOW =(4 BedroomsI Persons)*(100 gpcd)"175% peak factor -1,400 gpd MEASURED SOIL PERCOLATION RATES - 7 minutes/inch, 9 minutes/inch, & 11 minutes/inch NOTE: In addition. pump controls shall be located REQUIRED ABSORPTION AREA = (1,400 gpd) • (-Nr9- m/in) / 5 = 840 sq.ft. In the building In an easily accessible 864 sq. ft REQUIRED SEPTIC TANK VOLUME = 1,400 gpd " 30 hours / 24 hours = 1,750 gallons location wtlere alarm and strobe can be DOSING FREQUENCY = 4 doses/day 1. Topsoil shall be stripped, stockpiled and replaced over all disturbed seen and heard and shall include overload 350 gallons/dose DEPTH PER DOSE IN 5' DIA. MH - 2,38 It deep - 29" PUMP RUN TIME - 350 gallons / 90 gpm heaters, hour meters, lightening arrestor, - i VENTED MANHOLE COVER Q ADE time -delay fuses, hand -off -auto switches, ALTERNATE W/ HANDLE EXTENSIONS LO "PUMP ON" MANHOLE FRAME AND LID pump alternator, pump lead/lag/altemate LEAD/LAG PUMP RINGS AS NEEDED CONCRETE UD FLOAT SWITCH: LIFTING CABLES: ATTACH selector switch, red alarm light with a test OR COIL CABLES TO RAIL FOR CONTINUATION ` `' OR SUPPORT JUNCTION BOX W/ button, and motor minders or other pump ELECTRIC DISCONNECTS MANHOLE, WATERTIGHT • <O c TURN LEAD ELECTRIC WIRING FOR 3" PVC SCH 80 PIPES (2) TO monitors for voltage protection, overcurrent, TEE INTO ONE 3' UNE THEN TO LEACH FIELD GRAVITY SS 2.0% MIl DRILL A 1/4" HOLE FROM SEPTIC TANK undercurrent, etc. Installation shall be in TO DRAIN THIS PIPE FLOAT SWITCHES (TYP): SET PUMP ON FOR 45 INCHES OF DEPTH : ss' conformance with applicable electrical codes. "PUMP OFF" TURNS ON DOES NOT TURN ON V TURN ON LAG PUMP FLOAT SWITCH: ON, AND PUMP NON 'GAP RAIL SUPPORTS (TYPICAL) SHUT-OFF COORDINATE W/ Y SPACE PER RECOMMENDATION TURN -" OF MANUFACTURER SERIES HYDROPUMP PUMP OFF RECOMMENDATION ° 2°' TDH W/ 3" DISCHARGE OF MANUFACTURER DOSING TANK - "HIGH I TURN ON ALARM FLOATAT SWITCH- GH: o DOES NOT PUMP CONTROL LOGIC SCHEMATIC ESIDENCE ISDS DESIGN CALCULATION FOUR LATERALS: 1-Y4" SCH. 80 PVC PIPE WITH ELEVEN 1/4' HOLES IN 30'-0" LATERAL: 1" FROM EACH END AND SPACED AT 35.75" C -C IN PIPE BOTTOM, SET LEVEL (TYP) DESIGN FLOW =(4 BedroomsI Persons)*(100 gpcd)"175% peak factor -1,400 gpd MEASURED SOIL PERCOLATION RATES - 7 minutes/inch, 9 minutes/inch, & 11 minutes/inch DESIGN SOIL PERCOLATION RATE = 9 minutes/inch REQUIRED ABSORPTION AREA = (1,400 gpd) • (-Nr9- m/in) / 5 = 840 sq.ft. DESIGNED ABSORPTION AREA = 36' • 24' = 864 sq. ft REQUIRED SEPTIC TANK VOLUME = 1,400 gpd " 30 hours / 24 hours = 1,750 gallons DESIGNED SEPTIC TANK VOLUME = 2,000 gallons > 1,750 gallons DOSING FREQUENCY = 4 doses/day 1. Topsoil shall be stripped, stockpiled and replaced over all disturbed DOSE VOLUME = (1,400 gpd) / (4 dpd) = 350 gallons/dose DEPTH PER DOSE IN 5' DIA. MH - 2,38 It deep - 29" PUMP RUN TIME - 350 gallons / 90 gpm = 3.9 min. r I w � 1 VENTED MANHOLE COVER Q ADE 3" ISOLATION VALVES (2) OR FLUSH NTH PAVED W/ HANDLE EXTENSIONS LO 2. All disturbed areas shall be revegetated by the Owner. MANHOLE FRAME AND LID CONCRETE RISER ECCENTRIC CONE OR RINGS AS NEEDED CONCRETE UD u ELECTRICAL CONDUITS T LIFTING CABLES: ATTACH COORDINATE W/ ELEC. OR COIL CABLES TO RAIL FOR CONTINUATION ` `' OR SUPPORT JUNCTION BOX W/ - 5' DIA. CONCRETE ELECTRIC DISCONNECTS MANHOLE, WATERTIGHT • <O c OR APPROVED EQUAL ELECTRIC WIRING FOR 3" PVC SCH 80 PIPES (2) TO PUMPS AND SWITCHES (TYP) TEE INTO ONE 3' UNE THEN TO LEACH FIELD GRAVITY SS 2.0% MIl DRILL A 1/4" HOLE FROM SEPTIC TANK TO DRAIN THIS PIPE FLOAT SWITCHES (TYP): SET BACK INTO DOSING TANK FOR 45 INCHES OF DEPTH : ss' DUPLEX PUMP DISCONNECT & BETWEEN PUMP ON AND OFF, GUIDE RAIL SYSTEM OR ALARM AT 2' ABOVE PUMP ONE FOR EACH PUMP ON, AND PUMP NON 'GAP RAIL SUPPORTS (TYPICAL) SHUT-OFF COORDINATE W/ Y SPACE PER RECOMMENDATION ELEC. FOR CONTINUATION -" OF MANUFACTURER SERIES HYDROPUMP STANDS PER -SET THE MANHOLE LEVEL ON A GRAVEL BASE EJECTOR EJECTOR PUMPS (2), 90 GPM PS ( RECOMMENDATION ° 2°' TDH W/ 3" DISCHARGE OF MANUFACTURER DOSING TANK - ELEVATION NOT TO SCALE PROPOSED 2,000 gol. SEPTIC VOLUME: TWO 1,000 gal..4, ANKS IN SERIES PER MANUFACTURE'S RECOMMENDATIONS 4" PVC SEWER` PIPE SEE BLDG MECH DWG FOR CONZNUATION my��'o t� 6716 : -, SLAB ELE�-N V V. 6719.9' HOUSE E 11 ST LES P. PARKING 9.2" tLOPE — PROPOSED LEACH FIELD, SEE DETAILS �-- LEACH FIELD SETBACKS: 132' FROM WELL i 25' FROM WATER SUPPLY LINE 20' FROM BUILDING 10' FROM PROPERTY LINE 82' FROM RIVER 6' FROM SEPTIC TANK PROPOSED DOSING TANK, SEE DETAILS SEPTIC TANK AND DOSING TANK SETBACKS: 50' FROM WELL 10' FROM WATER SUPPLY LINE 5FROM BUILDING 10' FROM PROPERTY LINE 50' FROM STREAM 6' FROM LEACH FIELD 1015 OWELL W LOCATION AC +/- '� 67i2\6j1g CONSTRUCTION SPECIFICATIONS Coi• 0 1 I o T (i) y w m oo I _O O PON" 0 'O U I _ 1. Topsoil shall be stripped, stockpiled and replaced over all disturbed areas. Existing trees and IM V Z: r I w � 1 Z~U3 Q c o 0 u LO 2. All disturbed areas shall be revegetated by the Owner. E d C ct Z: Z: o > 3. The site shall be graded so that runoff water does not drain onto the leach field surface. �Mill _ W t9 u L u o0y e to N c 1Ill _ � c Wj • <O c W U00 s '� 67i2\6j1g CONSTRUCTION SPECIFICATIONS (i) 6710 6710 _ 1. Topsoil shall be stripped, stockpiled and replaced over all disturbed areas. Existing trees and shrubs shall remain unless otherwise approved by the Owner; existing 6708 vegetation shall not be 0 Q —__disturbed beyond the necessary limits of the construction. LO 2. All disturbed areas shall be revegetated by the Owner. Vim/sio 3. The site shall be graded so that runoff water does not drain onto the leach field surface. 4. Construction shall conform to Pitkin County Regulations.1 1Ill 5. Chris Hale, Mountain Cross Engineering, Inc. shall be notified of the construction progress so W CM the system may be inspected. Do not backfill over any system components until they have been Inspected. G 6. Sewer piping shall be bedded and initially backfilled with gravel 4 inches under piping and 6 inches on top of piping. Backfill shall be wheel—roll compacted. Piping shall be installed O' ` watertight and to prevent freezing, li 7. The septic tank shall be precast concrete, set level on o bed of gravel. Install the tank in ERaccordance with the manufacturer's recommendations. 8. The septic tank capacity must be at least the size specified. 9. The septic tank inlet must be at least 3 inches higher than the outlet. An inlet tee or baffle must extend above the surface of the liquid to within 1 inch of the bottom of the tank top and A' must extend at least 14 inches below the inlet. 10. A filter is required on the final outlet tee or at some point between the septic tank and absorption field so that only the liquid effluent will be discharged. Other outlet tees or baffles must extend above the surface of the liquid to within one inch of the underside of the tank top., Tees must extend at least 14 inches below the outlet. 11. The distance from the septic tank outlet to the underside of the tank top must be at least 10 inches. 12. Liquid depth must be at least 30 aches and must not exceed the septic tank length or 60 inches, whichever is less. 13. A septic tank must have two or —ore compartments (or more than one tank in series to `0+ Provide the necessary capacity). The first compartment must be at least as large as the second compartment. 14. The transfer of iquid from the first compartment to the second or successive compartment must be made of a lieuid depth of at least 14 inches below the outlet invert, but not in the sludge zone. o o ci 15. At least one access no less than 20 inches across must be provided in each compartment Of Of UJ of a tank. o 0 0_ 16. The opening cover of a septic tank, inspection port, or sampling access port must be �, w marked and must be no more than 8 inches below the finished grade. It must be made of Z -.1E o materials resistant to degradation from moisture or sewer gases.N W m m 1n 17. Pipe meeting or exceeding ASTM standard 3034 properly supported to prevent failure by o o N N N settling must extend from the septic tank at least five (5) feet from the inlet and outlet ends. `o a a > 18. All wastewater lines used must be constructed of compatible pipe, bonding agent, andw w w fittings. The following may be used: plastic pipe and fittings with a minimum wall thickness of a: ASTM Standard 3034, SDR35, or equivalent, perforated distribution pipe surrounded by rock within a soil absorption system with a minimum wall thickness conforming to ASTM Standard 2729; or m 0 0 corrugated polyethylene pipe with smooth interior meeting ASTM F405 and AASHTO M252\ \ 0 specifications or equivalent. Tle, open—joint pipe, and cast iron pipe may not be used in ISDS's. o N U) 19. All components, work, equipment, and material must be designed, operated and maintained so as to comply with the minimum requirements of the applicable and current Plumbing, \ \ Electrical, Building or other code in force on the date of the ISDS Permit Application. DATE 20. Major components not constructed on the site where installed must have a permanent plate 01/13/06 or other indelible marking, easily read and visible, for the purpose of inspection, to include name of manufacturer, model or serial number designation, and maximum design capacity of the unit. SCALE " 21. Gravel shall be clean, screened rock Iii to 2-11% in size. 1 =20 22. Tanks, treatment units, and piping material must be watertight and must be certified by the ENGINEER Water Quality Control Division of the Colorado Department of Public Health and Environment. C. HALE SCALE Under certain circumstances, the Department may require the tank be filled with water prior to 10 a 20 backfill to check for leaks. DWG FILE 23. The ground over any part of the ISDS must be restricted to activity or use that will allow KirkeAs—Builts - - the system to function as designed and that will not contribute to compaction of the soil or to the structural loading detrimental to the capability of the component to function as designed. JOB Driveways, parking areas, storage buildings, large animal confinement areas and other similar uses 393-020 may not be placed on or above an ISDS disposal field. 24. Machine tamping, rolling, or hydraulic compaction of final cover is not permitted, however, SHEET ��^\ hand tamping may be allowed where necessary to stabilize the soil to prevent erosion or the \ intrusion of extraneous water. 6714 4� PROPOSED LEACH FIELD, SEE DETAILS /IT] � LEACH FIELD SETBACKS: * 132' FROM WELL 25' FROM WATER SUPPLY LINE 20' FROM BUILDING ° 10' FROM PROPERTY LINE TEST 82' FROM RIVER PROPOSED 2,000 gal. SEPTIC VOLUME: ❑ r - 6' FROM SEPTIC TANK TWO 1,000 gal. ,TANKS IN SERIES PER TYF MANUFACTURER'S RECOMMENDATIONS, 4" PVC SE SEE BLDG FOR CONT11 SCALE 20 10 O 20 R VER PROPOSED DOSING TANK, SEE DETAILS SEPTIC TANK AND DOSING TANK SETBACKS: 50' FROM WELL 10' FROM WATER SUPPLY LINE 5' FROM BUILDING in' FROM PRnPFRTY I INF S� - CONSTRUCTION SPECIFICATIONS 1. Topsoil shall be stripped, stockpiled and replaced over all disturbed areas. Existing trees and shrubs shall remain unless otherwise approved by the Owner; existing vegetation shall not be disturbed beyond the necessary limits of the construction. 2. All disturbed areas shall be revegetated by the Owner. 3. The site shall be graded so that runoff water does not drain onto the leach field surface. 4. Construction shall conform to Pitkin County Regulations. 5. Chris Hale, Mountain Cross Engineering, Inc. shall be notified of the construction progress so the system may be inspected. Do not backflll over any system components until they have been inspected. 6. Sewer piping shall be bedded and initially backfilled with gravel 4 inches under piping and 6 inches on top of piping. Backfill shall be wheel—roll compacted. Piping shall be installed watertight and to prevent freezing. 7. The septic tank shall be precast concrete, set level on a bed of gravel. Install the tank in accordance with the manufacturer's recommendations. 8. The septic tank capacity must be at least the size specified. 9. The septic tank inlet must be at least 3 inches higher than the outlet. An inlet tee or baffle must extend above the surface of the liquid to within 1 inch of the bottom of the tank top and must extend at least 14 inches below the inlet. 10. A filter is required on the final outlet tee or at some point between the septic tank and absorption field so that only the liquid effluent will be discharged. Other outlet tees or baffles must extend above the surface of the liquid to within one inch of the underside of the tank top. Tees must extend at least 14 inches below the outlet. 11. The distance from the septic tank outlet to the underside of the tank top must be at least 10 inches. 12. Liquid depth must be at least 30 inches and must not exceed the septic tank length or 60 inches, whichever is less. 13. A septic tank must have two or more compartments (or more than one tank in series to provide the necessary capacity). The first compartment must be at least as large as the second compartment. 14. The transfer of liquid from the first compartment to the second or successive compartment must be made at a liquid depth of at least 14 inches below the outlet invert, but not in the sludge zone. 15. At least one access no less than 20 inches across must be provided in each compartment of a tank. 16. The opening cover of a septic tank, inspection port, or sampling access port must be marked and must be no more than 8 inches below the finished grade. It must be made of materials resistant to degradation from moisture or sewer gases. 17. Pipe meeting or exceeding ASTM standard 3034 propery supported to prevent failure by settling must extend from the septic tank at least five (5) feet from the inlet and outlet ends. 18. All wastewater lines used must be constructed of compatible pipe, bonding agent, and fittings. The following may be used: plastic pipe and fittings with a minimum wall thickness of ASTM Standard 3034, SDR35, or equivalent, perforated distribution pipe surrounded by rock within a soil absorption system with a minimum wall thickness conforming to ASTM Standard 2729; or corrugated polyethylene pipe with smooth interior meeting .ASTM F405 and AASHTO M252 specifications or equivalent. Tile, open—joint pipe, and cast iron pipe may not be used in ISDS's. 19. All components, work, equipment, and material must be designed, operated and maintained so as to comply with the minimum requirements of the applicable and current Plumbing, Electrical, Building or other code in force on the date of the ISDS Permit Application. 20. Major components not constructed on the site where installed must have a permanent plate or other indelible marking, easily read and visible, for the purpose of inspection, to include name of manufacturer, model or serial number designation, and maximum design capacity of the unit. 21. Gravel shall be clear, screened rock �1" to 2-M" in size. 22. Tanks, treatment units, and piping material must be watertight and must be certified by the Water Quality Control Division of the Colorado Department of Public Health and Environment. Under certain circumstances, the Department may require the tank be filled with water prior to backfill to check for leaks. 23. The ground over any part of the ISDS must be restricted to activity or use that will allow the system to function as designed and that will not contribute to compaction of the soil or to the structural loading detrimental to the capability of the component to function as designed. Driveways, parking areas, storage buildings, large animal confinement areas and other similar uses may not be placed on or above an ISDS disposal field. 24. Machine tamping, rolling, or hydraulic compaction of final cover is not permitted, however, hand tamping may be allowed where necessary to stabilize the soil to prevent erosion or the intrusion of extraneous water. 4 PVC SEWER PIPE FITTINGS & BENDS AS NECESSARY PROPOSED LEACH FIELD, SEE DETAILS \\ 01_u Mr-Ur7 uwUZ) SEPTIC TANK SETBACKS: TION 50' FROM WELL 6j?6 10' FROM WATER SUPPLY LINE 6228 THRESHOLD ELEV. 6719.9' 5' FROM BUILDING 10 FROM PROPERTY LINE 6j22 TOP OF BANK 50' FROM STREAM LIMIT OF 100 YEAR FLOOD � 6�ZQ\ 6' FROM LEACH FIELD EDGE OF WATER LEACH FIELD SETBACKS: 100' FROM WELL 25' FROM WATER SUPPLY LINE 20' FROM BUILDING 10' FROM PROPERTY LINE 50' FROM IRRIGATION DITCH 6' FROM SEPTIC TANK UrFIVE MAY 2 s 2006 PITI(k ,,. . ,_,, r.!,-jN.MENTAL HEALTH & NATURAL RESO'.I'."C Ca 04 Z 00 ZJ 0>=Q a.Fm Lu� TT r (i ® c / V a IVa/ c%/ LO Q ) (� W N cc RE ;ONP U Of UJ a o: a Z v 0 0 On U w w e: 9 a DATE 01/13/06 SCALE 1 "=20' ENGINEER C. HALE DWG FILE KirkelSDS JOB 393-020 SHEET r C1 r/ � o rrww 1] © 111 0 = o W w CID a1 Z a CL � > T r_10 LU L c o Ca 04 Z 00 ZJ 0>=Q a.Fm Lu� TT r (i ® c / V a IVa/ c%/ LO Q ) (� W N cc RE ;ONP U Of UJ a o: a Z v 0 0 On U w w e: 9 a DATE 01/13/06 SCALE 1 "=20' ENGINEER C. HALE DWG FILE KirkelSDS JOB 393-020 SHEET r C1 ~ CO? 3 W E� c 3 = Z O >a > MEN LU E t7 Og Z: N W�� > o Ca 04 Z 00 ZJ 0>=Q a.Fm Lu� TT r (i ® c / V a IVa/ c%/ LO Q ) (� W N cc RE ;ONP U Of UJ a o: a Z v 0 0 On U w w e: 9 a DATE 01/13/06 SCALE 1 "=20' ENGINEER C. HALE DWG FILE KirkelSDS JOB 393-020 SHEET r C1 PROPOSED LEACH FIELD, SEE DETAILS LEACH FIELD SETBACKS: ITT] 132' FROM WELL 25' FROM WATER SUPPLY LINE ,o°° 1001 20' FROM BUILDING °m0 ° 10' FROM PROPERTY LINE TEST 82' FROM RIVER PROPOSED 2,00/0 al. SEPTIC VOLUME: "Ll 6' FROM SEPTIC TANK MAONUFOACOTUaRtR'S RECOMMENDATIO N,P. ,� . ANKS IN SERIES PER TY -x-14 670 4" PVC SEWER PIPE SEE BLDG MtCH DW FOR CO .rNUATIO I k�w 6716 -6712 67 0 J . q%Aftlrv� I STIP 61�Jg EXISTING PARKING -SLAB ELEV. - 719.2' =LOPE PROPOSED DOSING TANK, SEE DETAILS — SEPTIC TANK AND DOSING TANK SETBACKS: 50' FROM WELL 10' FROM WATER SUPPLY LINE 5' FROM BUILDING 10' FROM PROPERTY LINE ; T 50' FROM STREAM \\6' FROM LEACH FIELD WELL LOCATION 1015 AC +/ CONSTRUCTION SPECIFICATIONS 1. Topsoil shall be stripped, stockpiled and replaced over all disturbed areas. Existing trees and shrubs shall remain unless otherwise approved by the Owner; existing vegetation shall not be disturbed beyond the necessary limits of the construction. 2. All disturbed areas shall be revegetated by the Owner. 3. The site shall be graded so that runoff water does not drain onto the leach field surface. 4. Construction shall conform to Pitkin County Regulations. 5. Chris Hale, Mountain Cross Engineering, Inc. shall be notified of the construction progress so the system may be inspected. Do not backfill over any system components until they have been inspected. 6. Sewer piping shall be bedded and initially backfilled with gravel 4 inches under piping and 6 inches on top of piping. Backfill shall be wheel -roll compacted. Piping shall be installed watertight and to prevent freezing. 7. The septic tank shall be precast concrete, set level on a bed of gravel. Install the tank in accordance with the manufacturer's recommendations. 8. The septic tank capacity must be at least the size specified. 9. The septic tank inlet must be at least 3 inches higher than the outlet. An inlet tee or baffle must extend above the surface of the liquid to within 1 inch of the bottom of the tank top and must extend at least 14 inches below the inlet. 10. A filter is required on the final outlet tee or at some point between the septic tank and absorption field so that only the liquid effluent will be discharged. Other outlet tees or baffles must extend above the surface of the liquid to within one inch of the underside of the tank top. Tees must extend at least 14 inches below the outlet. 11. The distance from the septic tank outlet to the underside of the tank top must be at least 10 inches. 12. Liquid depth must be at least 30 inches and must not exceed the septic tank length or 60 inches, whichever is less. 13. A septic tank must have two or more compartments (or more than one tank in series to provide the necessary capacity). The first compartment must be at least as large as the second compartment. 14. The transfer of liquid from the first compartment to the second or successive compartment must be made at a liquid depth of at least 14 inches below the outlet invert, but not in the sludge zone. 15. At least one access no less than 20 inches across must be provided in each compartment of a tank. 16. The opening cover of a septic tank, inspection port, or sampling access port must be marked and must be no more than 8 inches below the finished grade. It must be made of materials resistant to degradation from moisture or sewer gases. 17. Pipe meeting or exceeding ASTM standard 3034 properly supported to prevent failure by settling must extend from the septic tank at least five (5) feet from the inlet and outlet ends. 18. All wastewater lines used must be constructed of compatible pipe, bonding agent, and fittings. The following may be used: plastic pipe and fittings with a minimum wall thickness of ASTM Standard 3034, SDR35, or equivalent, perforated distribution pipe surrounded by rock within a soil absorption system with a minimum wall thickness conforming to ASTM Standard 2729; or corrugated polyethylene pipe with smooth interior meeting ASTM F405 and AASHTO M252 specifications or equivalent. Tile, open -joint pipe, and cast iron pipe may not be used in ISDS's. 19. All components, work, equipment, and material must be designed, operated and maintained so as to comply with the minimum requirements of the applicable and current Plumbing, Electrical, Building or other code in force on the date of the ISDS Permit Application. 20. Major components not constructed on the site where installed must have a permanent plate or other indelible marking, easily read and visible, for the purpose of inspection, to include name of manufacturer, model or serial number designation, and maximum design capacity of the unit. 21. Gravel shall be clean, screened rock %" to 2-%" in size. 22. Tanks, treatment units, and piping material must be watertight and must be certified by the Water Quality Control Division of the Colorado Department of Public Health and Environment. Under certain circumstances, the Department may require the tank be filled with water prior to backfill to check for leaks. 23. The ground over any part of the ISDS must be restricted to activity or use that will allow the system to function as designed and that will not contribute to compaction of the soil or to the structural loading detrimental to the capability of the component to function as designed. Driveways, parking areas, storage buildings, large animal confinement areas and other similar uses may not be placed on or above an ISDS disposal field. 24. Machine tamping, rolling, or hydraulic compaction of final cover is not permitted, however, hand tamping may be allowed where necessary to stabilize the soil to prevent erosion or the intrusion of extraneous water. EXISTING PARKING EXISTING PARKING 6]>O 4 04 e'r V XI3NG TI DRIVE PVC SEWER PIPE G FORK R/ VE FITTINGS &BENDS 6]>¢ 6��66'�6 AS NECESSARY �- C �o d�l \ \ 5' PIP ENVELOPE ryCb Du ENVELOPE PROPOSED LEACH OS gal. SEP C TANK FIELD, SEE DETAILS i VELOK PARKING 5' PIPE - ENVEI " -- - LEACH FIELD SETBACKS: ENVELOPE 100' FROM WELL 25' FROM WATER SUPPLY LINE \ ENCHNISH FLOOR > EXISTING ELEV. 6729.46' FINISH 20 FROM BUILDING 6� FRAME GARAGE 0 10' FROM PROPERTY LINE 6�,A 8 6�zo\ (PROPOSED cru) / 50' FROM IRRIGATION DITCH VC SE ER PIPS- 6' FROM SEPTIC TANK EE�.BLDG MECH DWGS SEPTIC TANK SETBACKS: CONTi TION 50' FROM WELL s�26 10' FROM WATER SUPPLY LINE 6j 5' FROM BUILDING 2&THRESHOLD ELEV. 6719-9' 10' FROM PROPERTY LINE TOP OF BANK 50' FROM STREAM LIMIT of 100 YEAR FLOOD \ 6�zQ\ 6' FROM LEACH FIELD EDGE OF WATER Volw /N ; v c 0 o 00 R i by C a ~C33 i� rr'' ll c c as d c m rw` w m ; r 3 c E < C Z Z d r O > > -x-14 670 4" PVC SEWER PIPE SEE BLDG MtCH DW FOR CO .rNUATIO I k�w 6716 -6712 67 0 J . q%Aftlrv� I STIP 61�Jg EXISTING PARKING -SLAB ELEV. - 719.2' =LOPE PROPOSED DOSING TANK, SEE DETAILS — SEPTIC TANK AND DOSING TANK SETBACKS: 50' FROM WELL 10' FROM WATER SUPPLY LINE 5' FROM BUILDING 10' FROM PROPERTY LINE ; T 50' FROM STREAM \\6' FROM LEACH FIELD WELL LOCATION 1015 AC +/ CONSTRUCTION SPECIFICATIONS 1. Topsoil shall be stripped, stockpiled and replaced over all disturbed areas. Existing trees and shrubs shall remain unless otherwise approved by the Owner; existing vegetation shall not be disturbed beyond the necessary limits of the construction. 2. All disturbed areas shall be revegetated by the Owner. 3. The site shall be graded so that runoff water does not drain onto the leach field surface. 4. Construction shall conform to Pitkin County Regulations. 5. Chris Hale, Mountain Cross Engineering, Inc. shall be notified of the construction progress so the system may be inspected. Do not backfill over any system components until they have been inspected. 6. Sewer piping shall be bedded and initially backfilled with gravel 4 inches under piping and 6 inches on top of piping. Backfill shall be wheel -roll compacted. Piping shall be installed watertight and to prevent freezing. 7. The septic tank shall be precast concrete, set level on a bed of gravel. Install the tank in accordance with the manufacturer's recommendations. 8. The septic tank capacity must be at least the size specified. 9. The septic tank inlet must be at least 3 inches higher than the outlet. An inlet tee or baffle must extend above the surface of the liquid to within 1 inch of the bottom of the tank top and must extend at least 14 inches below the inlet. 10. A filter is required on the final outlet tee or at some point between the septic tank and absorption field so that only the liquid effluent will be discharged. Other outlet tees or baffles must extend above the surface of the liquid to within one inch of the underside of the tank top. Tees must extend at least 14 inches below the outlet. 11. The distance from the septic tank outlet to the underside of the tank top must be at least 10 inches. 12. Liquid depth must be at least 30 inches and must not exceed the septic tank length or 60 inches, whichever is less. 13. A septic tank must have two or more compartments (or more than one tank in series to provide the necessary capacity). The first compartment must be at least as large as the second compartment. 14. The transfer of liquid from the first compartment to the second or successive compartment must be made at a liquid depth of at least 14 inches below the outlet invert, but not in the sludge zone. 15. At least one access no less than 20 inches across must be provided in each compartment of a tank. 16. The opening cover of a septic tank, inspection port, or sampling access port must be marked and must be no more than 8 inches below the finished grade. It must be made of materials resistant to degradation from moisture or sewer gases. 17. Pipe meeting or exceeding ASTM standard 3034 properly supported to prevent failure by settling must extend from the septic tank at least five (5) feet from the inlet and outlet ends. 18. All wastewater lines used must be constructed of compatible pipe, bonding agent, and fittings. The following may be used: plastic pipe and fittings with a minimum wall thickness of ASTM Standard 3034, SDR35, or equivalent, perforated distribution pipe surrounded by rock within a soil absorption system with a minimum wall thickness conforming to ASTM Standard 2729; or corrugated polyethylene pipe with smooth interior meeting ASTM F405 and AASHTO M252 specifications or equivalent. Tile, open -joint pipe, and cast iron pipe may not be used in ISDS's. 19. All components, work, equipment, and material must be designed, operated and maintained so as to comply with the minimum requirements of the applicable and current Plumbing, Electrical, Building or other code in force on the date of the ISDS Permit Application. 20. Major components not constructed on the site where installed must have a permanent plate or other indelible marking, easily read and visible, for the purpose of inspection, to include name of manufacturer, model or serial number designation, and maximum design capacity of the unit. 21. Gravel shall be clean, screened rock %" to 2-%" in size. 22. Tanks, treatment units, and piping material must be watertight and must be certified by the Water Quality Control Division of the Colorado Department of Public Health and Environment. Under certain circumstances, the Department may require the tank be filled with water prior to backfill to check for leaks. 23. The ground over any part of the ISDS must be restricted to activity or use that will allow the system to function as designed and that will not contribute to compaction of the soil or to the structural loading detrimental to the capability of the component to function as designed. Driveways, parking areas, storage buildings, large animal confinement areas and other similar uses may not be placed on or above an ISDS disposal field. 24. Machine tamping, rolling, or hydraulic compaction of final cover is not permitted, however, hand tamping may be allowed where necessary to stabilize the soil to prevent erosion or the intrusion of extraneous water. EXISTING PARKING EXISTING PARKING 6]>O 4 04 e'r V XI3NG TI DRIVE PVC SEWER PIPE G FORK R/ VE FITTINGS &BENDS 6]>¢ 6��66'�6 AS NECESSARY �- C �o d�l \ \ 5' PIP ENVELOPE ryCb Du ENVELOPE PROPOSED LEACH OS gal. SEP C TANK FIELD, SEE DETAILS i VELOK PARKING 5' PIPE - ENVEI " -- - LEACH FIELD SETBACKS: ENVELOPE 100' FROM WELL 25' FROM WATER SUPPLY LINE \ ENCHNISH FLOOR > EXISTING ELEV. 6729.46' FINISH 20 FROM BUILDING 6� FRAME GARAGE 0 10' FROM PROPERTY LINE 6�,A 8 6�zo\ (PROPOSED cru) / 50' FROM IRRIGATION DITCH VC SE ER PIPS- 6' FROM SEPTIC TANK EE�.BLDG MECH DWGS SEPTIC TANK SETBACKS: CONTi TION 50' FROM WELL s�26 10' FROM WATER SUPPLY LINE 6j 5' FROM BUILDING 2&THRESHOLD ELEV. 6719-9' 10' FROM PROPERTY LINE TOP OF BANK 50' FROM STREAM LIMIT of 100 YEAR FLOOD \ 6�zQ\ 6' FROM LEACH FIELD EDGE OF WATER Volw /N ; v c 0 o 00 R 0 3� by C a ~C33 1W1 ��ly0u rr'' ll c c as d c m rw` w m ; r 3 c E < C Z Z d r O > > ; 4 LU04 O V 4 C _ r c WU00 r > ca c ; (3 W w EL of Z a W o7 0 O U 5 w iW DATE 01/13/06 SCALE 1 "=20' ENGINEER C. HALE DWG RIP KirkelSDS JOB 393-020 SHEET III e, ^\ �C C1� a3 0� NOTES: 1. EXCAVATE TRENCHES TO PROPER WIDTH, AND PROPER DEPTH AS REQUIRED BY STATE AND LOCAL CODES. 2. SMOOTH IRREGULARITIES IN THE EXCAVATION. A LEVEL, FLAT SURFACE IS NECESSARY. 3. ASSEMBLE BIODIFFUSER LEACHING CHAMBERS AND UNIVERSAL ENDPLATES TOGETHER IN TRENCH(ES). 4. THE UNIVERSAL END PLATE IS CONSTRUCTED WITH TABS SO THAT THE EARTH FILL ON ONE SIDE WILL HOLD IT SECURELY IN PLACE AGAINST THE BIODIFFUSER. 5. PUNCH OUT PIPE HOLE OPENINGS IN THE END PLATES AS NEEDED AND CONNECT INLET PIPES. 6. FILL SIDEWALL AREA TO TOP CHAMBERS WITH NATIVE SOIL <2 1/2" 7. "WALK IN" FILL TO COMPACT SOIL ALONG SIDES OF CHAMBER. THIS IS VERY IMPORTANT TO ACHIEVE FULL WEIGHT RATING. 8, COVER CHAMBERS TO A MINIMUM OF 12" AFTER CONSOLIDATION FOR H-10 APPLICATIONS AND 18" MINIMUM COVER AFTER CONSOLIDATION FOR H-20 APPLICATIONS. AVOID LARGE ROCKS OR DEBRIS IN COVER MATERIAL. A WELL GRADED, CRUSHED GRAVEL AND CAREFUL COMPACTION IS RECOMMENDED FOR H-20 INSTALLATIONS. PROPOSED BUILDING 4 -INCH SDR35 PVC SEWER AT MINIMUM 1/4" PER FOOT SLOPE I SECTION A—A Not to Scale 4-8" OF SOIL OVER SEPTIC TANK UDS tiTr ELEVATION OF SEPTIC AND DOSING TANK TO BE DETERMINED BY THE ELEVATION OF THE SEWER UNE FROM THE BUILDING PROVIDE ADEQUATE SUPPORT FOR PIPE BEFORE AND DURING BACKFILLING PROPOSED BUILDING 4" CLEANOUT 4 -INCH SDR35 PVC SEWER AT MINIMUM 1/4" PER FOOT SLOPE BRASS OR CAST IRON CAP AND COVER < CONCRETE SUPPORT CLEANOUT DETAIL SEPTIC TANK UDS ADJUST TO GRADE FLEXIBLE -- COUPLING CONCRETE MANHOLE RISERS AS NEEDED FLEXIBLE COUPUNG n SEPTIC TANK, SIZE PER PLAN SHEETS 4 -INCH SDR35 PVC SEWER AT DOSING TANK MINIMUM 1/4" PER FOOT SLOPE (SEE DETAILS) RESIDENCE PROFILE Not to Scale GRADE (VARIES) 3" SCH. 80 PVC PIPE SLOPE TO DRAIN BACK TO DOSING TANK RESIDENCE LEACH FIELD SYSTEM, SEE DETAILS --y =_ ,.vrvunuc mru�n�i.c rtiocno rw n¢u�u _ - - -GRADE(VARIES) - SEPTIC TANK, CDU LEACH FIELD SIZE PER \\ SYSTEM, SEE DETAILS —71 PLAN SHEETS 4 -INCH SDR35 PVC SEWER AT MINIMUM 1/4" PER FOOT SLOPE CDU PROFILE Not to Scale "PUMP OFF" TURNSON I DOES NOT FLOAT SWITCH: TURN ON TURN ON LAG PUMP � TURN I PUMP OFF "HIGH LEVELALARM" I TURN ON ALARM FLOAT SWITCH: o DOESNOT TURN OFF PUMP CONTROL LOGIC SCHEMATIC CDU ISDSDESIGN CALCULATIONS DESIGN FLOW =(2 Bedroom)*(2 Persons)*(75 gpcd)*175% peak factor --525 gpd MEASURED SOIL PERCOLATION RATES = 11 minutes/inch, 19 minutes/inch, & 45 minutes/inch DESIGN SOIL PERCOLATION RATE = 25 minutes/inch REQUIRED ABSORPTION AREA = (525 gpd) * (-F2_5_ m/in) / 5 = 525 sq.ft. REDUCTION FOR CHAMBERS = (525 sq. ft.) x (50%) = 262.5 sq. ft. ✓ REQUIRED CHAMBERS = (262.5 sq. ft.) / (15.5 sq. ft./chamber) = 16.9 chambers, use 18 REQUIRED SEPTIC TANK VOLUME = 525 gpd * 30 hours / 24 hours = 656 gallons DESIGNED SEPTIC TANK VOLUME = 1,000 gallons > 656 gallons i IDENCE ISDS DESIGN CALCULATIONS DESIGN FLOW =(4 Bedrooms)*(2 Persons)«(100 gpcd)"175% peak factor=1,400 gpd MEASURED SOIL PERCOLATION RATES = 7 minutes/inch, 9 minutes/inch, & 11 minutes/inch DESIGN SOIL PERCOLATION RATE = 9 minutes/inch REQUIRED ABSORPTION AREA = (1,400 gpd) * (-V_9 m/in) / 5 = 840 sq.ft. DESIGNED ABSORPTION AREA = 36' * 24' - 864 sq. ft. REQUIRED SEPTIC TANK VOLUME = 1,400 gpd * 30 hours / 24 hours = 1,750 gallons DESIGNED SEPTIC TANK VOLUME = 2,000 gallons > 1,750 gallons DOSING FREQUENCY = 4 doses/day DOSE VOLUME = (1,400 gpd) / (4 dpd) - 350 gallons/dose DEPTH PER DOSE IN 5' DIA. MH - 2.38 ft deep = 29" PUMP RUN TIME = 350 gallons / 90 gpm = 3.9 min. 4 -INCH PVC PIPE FROM SEPTIC TP 2.00% MINIMUM 3 -INCH SOLID S PIPE FROM DOSII 3" CHECK VALVE CDU LEACH FIELD DETAIL Not to Scale 8 -OZ. MIRAFI GEOTEXTILE FABRIC COVER OVER GRAVEL lY4* PVC PIPES, LEVEL MIN. 60 OF BELOW PIPES 11111111 AND 2" OF GRAVEL ABM PIPES TOPSOIL COVER,••• • DRAIN EMSTING GRADE -y, SECTION 13-13 B -B RESIDENCE LEACH FIELD DETAIL Not to Scale FOUR LATERALS: 1440 SCH. 80 PVC PIPE WiTH ELEVEN 1/4" HOLES IN 30'-0" LATERAL: 1" FROM EACH END AND SPACED AT 35.75" C -C IN PIPE BOTTOM, SET LEVEL (TYP) NOTE: In addition, pump controls shall be located VENTED MANHOLE COVER location where alarm and strobe can be 6" ABOVE FINISHED GRADE 00 heaters, hour meters, lightening arrestor, 3" ISOLATION VALVES (2) OR FLUSH WITH PAVED ALTERNATE "PUMP ON" pump alternator, pump lead/log/altemate W/ HANDLE EXTENSIONS selector switch, red alarm light with a test button, and motor minders or other pump MANHOLE FRAME AND UD TURN LEAD I ALARM W/ STROBE PUMP ON UA CONCRETE RISER ECCENTRIC CONE OR E t C � l RINGS AS NEEDED CONCRETE UD "HIGH LEVEL ALARM" ~ W b � EJECTOR PUMP A z: ELECTRICAL CONDUITS - LIFTING CABLES: ATTACH HIGHEST FLOAT SWITCH > t0 COORDINATE W/ ELEC. OR COIL CABLES TO RAIL (NORMALLY OPEN) FOR CONTINUATIONS "`` OR SUPPORT BOX 5' DIA. CONCRETE "PUMP ON" ELECTRCCDISCONNECIS MANHOLE,, WATERTIGHT MiDDLE FLOAT SWITCH OR APPROVED EQUAL (NORMALLY OPEN) ( PUMP BS ELECTRIC WIRING FOR O PUMPPUMPS CONTROL AND SWITCHES (TYP) 3" PVC SCH 80 PIPES (2) TO TEE INTO ONE 3" UNE THEN "PUMP OFF" PANEL j TO LEACH FIELD LOWEST FLOAT SWITCH GRAVITY SS 2.0% MIN. s' (NORMALLY CLOSED) FROM SEPTIC TANK DRILL A 1/4" HOLE TO DRAIN THIS PIPE FLOAT SWITCHES (TYP): SET BACK INTO DOSING TANK PUMP CONTROL WIRING SCHEMATIC FOR 45 INCHES OF DEPTH - DUPLEX PUMP DISCONNECT & BETWEEN PUMP ON AND OFF, ss GUIDE RAIL SYSTEM OR ALARM AT 2" ABOVE PUMP ONE FOR EACH PUMP ON, AND PUMP NON" GAP i RAIL SUPPORTS (TYPICAL) SHUT-OFF COORDINATE W/ """ = SPACE PER RECOMMENDATION ELEC. FOR CONTINUATION _-- OF MANUFACTURER PUMP STANDS PER SET THE MANHOLE LEVEL ON A GRAVEL BASE ASHEF SERIES EJECTO PU EJECTOR PUMPS (2), 90 GPM RECOMMENDATION ®20' iDH W/ 3" DISCHARGE OF MANUFACTURER DOSING TANK - ELEVATION NOT TO SCALE "PUMP OFF" TURNSON I DOES NOT FLOAT SWITCH: TURN ON TURN ON LAG PUMP � TURN I PUMP OFF "HIGH LEVELALARM" I TURN ON ALARM FLOAT SWITCH: o DOESNOT TURN OFF PUMP CONTROL LOGIC SCHEMATIC CDU ISDSDESIGN CALCULATIONS DESIGN FLOW =(2 Bedroom)*(2 Persons)*(75 gpcd)*175% peak factor --525 gpd MEASURED SOIL PERCOLATION RATES = 11 minutes/inch, 19 minutes/inch, & 45 minutes/inch DESIGN SOIL PERCOLATION RATE = 25 minutes/inch REQUIRED ABSORPTION AREA = (525 gpd) * (-F2_5_ m/in) / 5 = 525 sq.ft. REDUCTION FOR CHAMBERS = (525 sq. ft.) x (50%) = 262.5 sq. ft. ✓ REQUIRED CHAMBERS = (262.5 sq. ft.) / (15.5 sq. ft./chamber) = 16.9 chambers, use 18 REQUIRED SEPTIC TANK VOLUME = 525 gpd * 30 hours / 24 hours = 656 gallons DESIGNED SEPTIC TANK VOLUME = 1,000 gallons > 656 gallons i IDENCE ISDS DESIGN CALCULATIONS DESIGN FLOW =(4 Bedrooms)*(2 Persons)«(100 gpcd)"175% peak factor=1,400 gpd MEASURED SOIL PERCOLATION RATES = 7 minutes/inch, 9 minutes/inch, & 11 minutes/inch DESIGN SOIL PERCOLATION RATE = 9 minutes/inch REQUIRED ABSORPTION AREA = (1,400 gpd) * (-V_9 m/in) / 5 = 840 sq.ft. DESIGNED ABSORPTION AREA = 36' * 24' - 864 sq. ft. REQUIRED SEPTIC TANK VOLUME = 1,400 gpd * 30 hours / 24 hours = 1,750 gallons DESIGNED SEPTIC TANK VOLUME = 2,000 gallons > 1,750 gallons DOSING FREQUENCY = 4 doses/day DOSE VOLUME = (1,400 gpd) / (4 dpd) - 350 gallons/dose DEPTH PER DOSE IN 5' DIA. MH - 2.38 ft deep = 29" PUMP RUN TIME = 350 gallons / 90 gpm = 3.9 min. 4 -INCH PVC PIPE FROM SEPTIC TP 2.00% MINIMUM 3 -INCH SOLID S PIPE FROM DOSII 3" CHECK VALVE CDU LEACH FIELD DETAIL Not to Scale 8 -OZ. MIRAFI GEOTEXTILE FABRIC COVER OVER GRAVEL lY4* PVC PIPES, LEVEL MIN. 60 OF BELOW PIPES 11111111 AND 2" OF GRAVEL ABM PIPES TOPSOIL COVER,••• • DRAIN EMSTING GRADE -y, SECTION 13-13 B -B RESIDENCE LEACH FIELD DETAIL Not to Scale FOUR LATERALS: 1440 SCH. 80 PVC PIPE WiTH ELEVEN 1/4" HOLES IN 30'-0" LATERAL: 1" FROM EACH END AND SPACED AT 35.75" C -C IN PIPE BOTTOM, SET LEVEL (TYP) NOTE: In addition, pump controls shall be located in the building in an easily accessible location where alarm and strobe can be seen and heard and shall include overload 00 heaters, hour meters, lightening arrestor, time -delay fuses, hand -off -auto switches, ALTERNATE "PUMP ON" pump alternator, pump lead/log/altemate LEAD/LAG PUMP FLOAT SWITCH: selector switch, red alarm light with a test button, and motor minders or other pump monitors for voltage protection, overcurrent, TURN LEAD I undercurrent, etc. Installation shall be in PUMP ON UA conformance with applicable electrical codes. "PUMP OFF" TURNSON I DOES NOT FLOAT SWITCH: TURN ON TURN ON LAG PUMP � TURN I PUMP OFF "HIGH LEVELALARM" I TURN ON ALARM FLOAT SWITCH: o DOESNOT TURN OFF PUMP CONTROL LOGIC SCHEMATIC CDU ISDSDESIGN CALCULATIONS DESIGN FLOW =(2 Bedroom)*(2 Persons)*(75 gpcd)*175% peak factor --525 gpd MEASURED SOIL PERCOLATION RATES = 11 minutes/inch, 19 minutes/inch, & 45 minutes/inch DESIGN SOIL PERCOLATION RATE = 25 minutes/inch REQUIRED ABSORPTION AREA = (525 gpd) * (-F2_5_ m/in) / 5 = 525 sq.ft. REDUCTION FOR CHAMBERS = (525 sq. ft.) x (50%) = 262.5 sq. ft. ✓ REQUIRED CHAMBERS = (262.5 sq. ft.) / (15.5 sq. ft./chamber) = 16.9 chambers, use 18 REQUIRED SEPTIC TANK VOLUME = 525 gpd * 30 hours / 24 hours = 656 gallons DESIGNED SEPTIC TANK VOLUME = 1,000 gallons > 656 gallons i IDENCE ISDS DESIGN CALCULATIONS DESIGN FLOW =(4 Bedrooms)*(2 Persons)«(100 gpcd)"175% peak factor=1,400 gpd MEASURED SOIL PERCOLATION RATES = 7 minutes/inch, 9 minutes/inch, & 11 minutes/inch DESIGN SOIL PERCOLATION RATE = 9 minutes/inch REQUIRED ABSORPTION AREA = (1,400 gpd) * (-V_9 m/in) / 5 = 840 sq.ft. DESIGNED ABSORPTION AREA = 36' * 24' - 864 sq. ft. REQUIRED SEPTIC TANK VOLUME = 1,400 gpd * 30 hours / 24 hours = 1,750 gallons DESIGNED SEPTIC TANK VOLUME = 2,000 gallons > 1,750 gallons DOSING FREQUENCY = 4 doses/day DOSE VOLUME = (1,400 gpd) / (4 dpd) - 350 gallons/dose DEPTH PER DOSE IN 5' DIA. MH - 2.38 ft deep = 29" PUMP RUN TIME = 350 gallons / 90 gpm = 3.9 min. 4 -INCH PVC PIPE FROM SEPTIC TP 2.00% MINIMUM 3 -INCH SOLID S PIPE FROM DOSII 3" CHECK VALVE CDU LEACH FIELD DETAIL Not to Scale 8 -OZ. MIRAFI GEOTEXTILE FABRIC COVER OVER GRAVEL lY4* PVC PIPES, LEVEL MIN. 60 OF BELOW PIPES 11111111 AND 2" OF GRAVEL ABM PIPES TOPSOIL COVER,••• • DRAIN EMSTING GRADE -y, SECTION 13-13 B -B RESIDENCE LEACH FIELD DETAIL Not to Scale FOUR LATERALS: 1440 SCH. 80 PVC PIPE WiTH ELEVEN 1/4" HOLES IN 30'-0" LATERAL: 1" FROM EACH END AND SPACED AT 35.75" C -C IN PIPE BOTTOM, SET LEVEL (TYP) CM W ZU)>' 0_a W o0 TT Q 0 i Q U) LO LV N U W o_ 0_ W z 8- z W in z M 0 O O to U > W LLI DATE 01/13/06 SCALE As Shown ENGINEER C. HALE DWG FILE KirkelSDSs JOB 393-020 SHEET ( - /1 �,C �../-J � VIA ' N 00 00 c0 ' , � •L CL r to rn a ! 0 3 r � a1d: E t C � l O > i >a, ~ W b � OT z: � N WUco > t0 CM W ZU)>' 0_a W o0 TT Q 0 i Q U) LO LV N U W o_ 0_ W z 8- z W in z M 0 O O to U > W LLI DATE 01/13/06 SCALE As Shown ENGINEER C. HALE DWG FILE KirkelSDSs JOB 393-020 SHEET ( - /1 �,C �../-J DIS1 7. "WALK IN" FILL TO COMPACT SOIL ALONG SIDES OF CHAMBER. THIS IS VERY IMPORTANT TO ACHIEVE FULL WEIGHT RATING. 8, COVER CHAMBERS TO A MINIMUM OF 12" AFTER CONSOLIDATION FOR H-10 APPLICATIONS AND 18" MINIMUM COVER AFTER CONSOLIDATION FOR H-20 APPLICATIONS. AVOID LARGE ROCKS OR DEBRIS IN COVER MATERIAL. A WELL GRADED, CRUSHED GRAVEL AND CAREFUL COMPACTION IS RECOMMENDED FOR H-20 INSTALLATIONS. SECTION A -A Not to Scale 60' TO SURFACE (TYP) (iUU LtALri l` ItLU Ut I AIL Not to Scale ISTING DRIVE QQNSTRUCTION SPECIFICA11ONa 1. Topsoil shall be stripped, stockpiled and replacod over all disturbed areas. Existing trees and shrubs shall remain unless otherwise approved by the Owner; existing vegetation shall not be disturbed beyond the necessary limits of the construction. 2. All disturbed areas shall be revegetated by the Owner. 3. The site shall be graded so that runoff water does not drain onto the leach field surface. 4. Construction shall conform to Pitkin County Regulations. 5. Chris Hale, Mountain Cross Engineering, Inc. shall be notified of the construction progress so the system may be inspected. Do not backfill over any system components until they have been inspected. 6. Sewer piping shall be bedded and initially backfilled with gravel 4 inches under piping and 6 inches on top of piping. Backfill shall be wheel -roll compacted. Piping shall be installed watertight and to prevent freezing. 7. The septic tank shall be precast concrete, set level on a bed of gravel. Install the tank in accordance with the manufacturer's recommendations. 8. The septic tank capacity must be at least the size specified. 9. The septic tank inlet must be at least 3 inches higher than the outlet. An inlet tee or baffle must extend above the surface of the liquid to within 1 inch of the bottom of the tank top and must extend at least 14 inches below the inlet. 10. A filter is required on the final outlet tee or at some point between the septic tank and absorption field so that only the liquid effluent will be discharged. Other outlet tees or baffles must extend above the surface of the liquid to within one inch of the underside of the tank top. Tees must extend at least 14 inches below the outlet. 11. The distance from the septic tank outlet to the underside of the tank top must be at least 10 inches. 12. Liquid depth must be at least 30 inches arc must not exceed the septic tank length or 60 inches, whichever is less. 13. A septic tank must have two or more compartments (or more than one tank in series to provide the necessary capacity). The first compartment must be at least as large as the second compartment. 14. The transfer of liquid from the first compartment to the second or successive compartment must be made at a liquid depth of at least 14 inches below the outlet invert, but not in the sludge zone. 15. At least one access no less than 20 inches across must be provided in each compartment of a tank. 16. The opening cover of a septic tank, inspection port, or sampling access port must be -rarKed c -d must be no more than 8 inches below the finished grade. It must be made of materials resistant to degradation from moisture or sewer gases. 17. Pipe meeting or exceeding ASTM standard 3034 properly supported to prevent failure by settling must extend from the septic tank at least five (5) feet from the inlet and outlet ends. 18. All wastewater lines used must be constructed of compatible pipe, bonding agent, and fittings. The following may be used: plastic pipe and fittings with a minimum wall thickness of ASTM Standard 3034, SDR35, or equivalent, perforated distribution pipe surrounded by rock within a soil absorption system with a minimum wall thickness conforming to ASTM Standard 2729; or corrugated polyethylene pipe with smooth interior meeting ASTM F405 and AASHTO M252 specifications or equivalent. Tile, open -joint pipe, and cast iron pipe may not be used in ISDS's. 19. All components, work, equipment, and material must be designed, operated and maintained so as to comply with the minimum requirements of the applicable and current Plumbing, Electrical, Building or other code in force on the date of the ISDS Permit Application. 20. Major components not constructed on the site where installed must have a permanent plate or other indelible marking, easily read and visible, for the purpose of inspection, to include name of manufacturer, model or serial number designation, and maximum design capacity of the unit. 21. Gravel shall be clean, screened rock 136" to 2-36" in size. 22. Tanks, treatment units, and piping material must be watertight and must be certified by the Water Quality Control Division of the Colorado Department of Public Health and Environment. Under certain circumstances, the Department may require the tank be filled with water prior to backfill to check for leaks. 23. The ground over any part of the ISDS must be restricted to activity or use that will allow the system to function as designed and that will not contribute to compaction of the soil or to the structural loading detrimental to the capability of the component to function as designed. Driveways, parking areas, storage buildings, large animal confinement areas and other similar uses may not be placed on or above an ISDS disposal field. 24. Machine tamping, rolling, or hydraulic compaction of final cover is not permitted, however, hand tamping may be allowed where necessary to stabilize the soil to prevent erosion or the intrusion of extraneous water. PROPOSED 4" CLEANOUT \ / 4-8" OF SOIL OVER - BUILDING �' SEPTIC TANK LIDS � - - - CONCRETE MANHOLE RISERS AS NEEDED 1 vvG 9a1. SEPTIC TANK GRADE (VARIES) EXISTING _-FILTER W/ HANDLE �' PARKING 78' o° S SFrI IZE PSK, CDU LEACH FIELD 4 -INCH SDR35 PVC SEWER AT PLAN SHEETS 4 -INCH SDR35 PVC SEWER AT SYSTEM, SEE DETAILS MINIMUM 1/4" PER FOOT SLOPE MINIMUM 1/4" PER FOOT SLOPE CDU PROFILE Not to Scale \ 4" PVC SEWER PIPE SEE BLDG MECH DWGS 6FOR,CON TINUATI ON <6 \ BRASS OR CAST IRON 6j2B THRESHOLD ELEV. 6719.9' CAP AND COVER 6j �2 -TOP OF BANK PROVIDE AFOR PIPE DEQUATE \ \24 \\ CDU ISDS AS -BUILT CALCULATIONS ANDSUPPORT BACKFlWN�Rt 6] 45' 3END DESIGN FLOW =(2 Bedroom)*(2 Persons)*(75 gpod)*175X peak factor=525 gpd MEASURED SOIL PERCOLATION RATES = 11 minutes/inch, 19 minutes/inch, & 45 minutes/inch DESIGN SOIL PERCOLATION RATE = 25 minutes/inch REQUIRED ABSORPTION AREA = (525 gpd) * (gym/In) / 5 = 525 sq.ft. REDUCTION FOR CHAMBERS = (525 sq. ft) x (50X) = 262.5 sq. ft. REQUIRED CHAMBERS = (262.5 sq. ft.) / (8.0 sq. ft./chamber) = 33 chambers,'used 4S REQUIRED SEPTIC TANK VOLUME - 525 gpd * 30 hours / 24 hours - 656 gallons SEPTIC TANK VOLUME = 1,000 gallons ENCASE WYE IN CONCRETE CLEANOUT DETAIL No, to Sccle CONCRETE SUPPORT EDGE OF WATER LEACH FIELD, SEE DETAILS LEACH FIELD SETBACKS: 100' FROM WELL 25' FROM WATER SUPPLY LINE 20' FROM BUILDING 10' FROM PROPERTY LINE 50' FROM IRRIGATION DITCH 6' FROM SEPTIC TANK V NOTES: SEPTIC TANJSETBACKS: 1. EXCAVATE TRENCHES TO PROPER WIDTH, AND PROPER DEPTH AS REQUIRED BY STATE AND LOCAL CODES. 10' 2. SMOOTH IRREGULARITIES IN THE EXCAVATION. A LEVEL, FLAT SURFACE IS NECESSARY. FROM 3. ASSEMBLE BIODIFFUSER LEACHING CHAMBERS AND UNIVERSAL ENDPLATES TOGETHER IN TRENCH(ES). PROPERTY LINE 4. THE UNIVERSAL END PLATE IS CONSTRUCTED WITH TABS SO THAT THE EARTH FILL ON ONE SIDE WILL HOLD IT SECURELY IN PLACE AGAINST THE BIODIFFUSER. FROM 5_ PUNCH OUT PIPE HOLE OPENINGS IN THE END PLATES AS NEEDED AND CONNECT INLET PIPES. 6. FILL SIDEWALL AREA TO TOP CHAMBERS WITH NATIVE SOIL <2 1/2- 7. "WALK IN" FILL TO COMPACT SOIL ALONG SIDES OF CHAMBER. THIS IS VERY IMPORTANT TO ACHIEVE FULL WEIGHT RATING. 8, COVER CHAMBERS TO A MINIMUM OF 12" AFTER CONSOLIDATION FOR H-10 APPLICATIONS AND 18" MINIMUM COVER AFTER CONSOLIDATION FOR H-20 APPLICATIONS. AVOID LARGE ROCKS OR DEBRIS IN COVER MATERIAL. A WELL GRADED, CRUSHED GRAVEL AND CAREFUL COMPACTION IS RECOMMENDED FOR H-20 INSTALLATIONS. SECTION A -A Not to Scale 60' TO SURFACE (TYP) (iUU LtALri l` ItLU Ut I AIL Not to Scale ISTING DRIVE QQNSTRUCTION SPECIFICA11ONa 1. Topsoil shall be stripped, stockpiled and replacod over all disturbed areas. Existing trees and shrubs shall remain unless otherwise approved by the Owner; existing vegetation shall not be disturbed beyond the necessary limits of the construction. 2. All disturbed areas shall be revegetated by the Owner. 3. The site shall be graded so that runoff water does not drain onto the leach field surface. 4. Construction shall conform to Pitkin County Regulations. 5. Chris Hale, Mountain Cross Engineering, Inc. shall be notified of the construction progress so the system may be inspected. Do not backfill over any system components until they have been inspected. 6. Sewer piping shall be bedded and initially backfilled with gravel 4 inches under piping and 6 inches on top of piping. Backfill shall be wheel -roll compacted. Piping shall be installed watertight and to prevent freezing. 7. The septic tank shall be precast concrete, set level on a bed of gravel. Install the tank in accordance with the manufacturer's recommendations. 8. The septic tank capacity must be at least the size specified. 9. The septic tank inlet must be at least 3 inches higher than the outlet. An inlet tee or baffle must extend above the surface of the liquid to within 1 inch of the bottom of the tank top and must extend at least 14 inches below the inlet. 10. A filter is required on the final outlet tee or at some point between the septic tank and absorption field so that only the liquid effluent will be discharged. Other outlet tees or baffles must extend above the surface of the liquid to within one inch of the underside of the tank top. Tees must extend at least 14 inches below the outlet. 11. The distance from the septic tank outlet to the underside of the tank top must be at least 10 inches. 12. Liquid depth must be at least 30 inches arc must not exceed the septic tank length or 60 inches, whichever is less. 13. A septic tank must have two or more compartments (or more than one tank in series to provide the necessary capacity). The first compartment must be at least as large as the second compartment. 14. The transfer of liquid from the first compartment to the second or successive compartment must be made at a liquid depth of at least 14 inches below the outlet invert, but not in the sludge zone. 15. At least one access no less than 20 inches across must be provided in each compartment of a tank. 16. The opening cover of a septic tank, inspection port, or sampling access port must be -rarKed c -d must be no more than 8 inches below the finished grade. It must be made of materials resistant to degradation from moisture or sewer gases. 17. Pipe meeting or exceeding ASTM standard 3034 properly supported to prevent failure by settling must extend from the septic tank at least five (5) feet from the inlet and outlet ends. 18. All wastewater lines used must be constructed of compatible pipe, bonding agent, and fittings. The following may be used: plastic pipe and fittings with a minimum wall thickness of ASTM Standard 3034, SDR35, or equivalent, perforated distribution pipe surrounded by rock within a soil absorption system with a minimum wall thickness conforming to ASTM Standard 2729; or corrugated polyethylene pipe with smooth interior meeting ASTM F405 and AASHTO M252 specifications or equivalent. Tile, open -joint pipe, and cast iron pipe may not be used in ISDS's. 19. All components, work, equipment, and material must be designed, operated and maintained so as to comply with the minimum requirements of the applicable and current Plumbing, Electrical, Building or other code in force on the date of the ISDS Permit Application. 20. Major components not constructed on the site where installed must have a permanent plate or other indelible marking, easily read and visible, for the purpose of inspection, to include name of manufacturer, model or serial number designation, and maximum design capacity of the unit. 21. Gravel shall be clean, screened rock 136" to 2-36" in size. 22. Tanks, treatment units, and piping material must be watertight and must be certified by the Water Quality Control Division of the Colorado Department of Public Health and Environment. Under certain circumstances, the Department may require the tank be filled with water prior to backfill to check for leaks. 23. The ground over any part of the ISDS must be restricted to activity or use that will allow the system to function as designed and that will not contribute to compaction of the soil or to the structural loading detrimental to the capability of the component to function as designed. Driveways, parking areas, storage buildings, large animal confinement areas and other similar uses may not be placed on or above an ISDS disposal field. 24. Machine tamping, rolling, or hydraulic compaction of final cover is not permitted, however, hand tamping may be allowed where necessary to stabilize the soil to prevent erosion or the intrusion of extraneous water. PROPOSED 4" CLEANOUT \ / 4-8" OF SOIL OVER - BUILDING �' SEPTIC TANK LIDS � - - - CONCRETE MANHOLE RISERS AS NEEDED 1 vvG 9a1. SEPTIC TANK GRADE (VARIES) EXISTING _-FILTER W/ HANDLE �' PARKING 78' o° S SFrI IZE PSK, CDU LEACH FIELD 4 -INCH SDR35 PVC SEWER AT PLAN SHEETS 4 -INCH SDR35 PVC SEWER AT SYSTEM, SEE DETAILS MINIMUM 1/4" PER FOOT SLOPE MINIMUM 1/4" PER FOOT SLOPE CDU PROFILE Not to Scale \ 4" PVC SEWER PIPE SEE BLDG MECH DWGS 6FOR,CON TINUATI ON <6 \ BRASS OR CAST IRON 6j2B THRESHOLD ELEV. 6719.9' CAP AND COVER 6j �2 -TOP OF BANK PROVIDE AFOR PIPE DEQUATE \ \24 \\ CDU ISDS AS -BUILT CALCULATIONS ANDSUPPORT BACKFlWN�Rt 6] 45' 3END DESIGN FLOW =(2 Bedroom)*(2 Persons)*(75 gpod)*175X peak factor=525 gpd MEASURED SOIL PERCOLATION RATES = 11 minutes/inch, 19 minutes/inch, & 45 minutes/inch DESIGN SOIL PERCOLATION RATE = 25 minutes/inch REQUIRED ABSORPTION AREA = (525 gpd) * (gym/In) / 5 = 525 sq.ft. REDUCTION FOR CHAMBERS = (525 sq. ft) x (50X) = 262.5 sq. ft. REQUIRED CHAMBERS = (262.5 sq. ft.) / (8.0 sq. ft./chamber) = 33 chambers,'used 4S REQUIRED SEPTIC TANK VOLUME - 525 gpd * 30 hours / 24 hours - 656 gallons SEPTIC TANK VOLUME = 1,000 gallons ENCASE WYE IN CONCRETE CLEANOUT DETAIL No, to Sccle CONCRETE SUPPORT EDGE OF WATER LEACH FIELD, SEE DETAILS LEACH FIELD SETBACKS: 100' FROM WELL 25' FROM WATER SUPPLY LINE 20' FROM BUILDING 10' FROM PROPERTY LINE 50' FROM IRRIGATION DITCH 6' FROM SEPTIC TANK CDU SITE PLAN S--A...E: 1 = 2' RECEIVED AUI; A 1 2006 PITKIN COUNTY ENVIRUNMENTAL HEALTH & NATURAL RESOURCES T_ rN ' � c o SEPTIC TANJSETBACKS: 50' FROM WELL 10' FROM WATER SUPPLY LINE 5' FROM BUILDING 10' FROM PROPERTY LINE 50' FROM STREAM 6' FROM LEACH FIELD CDU SITE PLAN S--A...E: 1 = 2' RECEIVED AUI; A 1 2006 PITKIN COUNTY ENVIRUNMENTAL HEALTH & NATURAL RESOURCES T_ rN ' � c o Do w Q oNINO c v R � m w a C O Ca Z04 00 Z >' J Q Oaf � T W i Q C�n V� TT Q Cn i Q�0LO o V ) Cfl W N O Z rm Z I W U) Z i Q OU 0 V) :D LLi U Z WI C �I ZZ h DATE 01/13/06 SCALE VARIES ENGINEER C. HALE DWG FILE CDUAs-Builts JOB 393-020 SHEET C3 ~ U 3 c w Q L_ > O . of � > m Co. Ca Z04 00 Z >' J Q Oaf � T W i Q C�n V� TT Q Cn i Q�0LO o V ) Cfl W N O Z rm Z I W U) Z i Q OU 0 V) :D LLi U Z WI C �I ZZ h DATE 01/13/06 SCALE VARIES ENGINEER C. HALE DWG FILE CDUAs-Builts JOB 393-020 SHEET C3