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Home My WebLink AboutSD-22-07 - Plans - Non-Record - 0047 Cheesefactory RoadPIPE TRENCH DETAIL NOT TO SCALE MOUND 3" ABOVE GRADE TO ALLOW FOR SETTLEMENT. FINISH WITH TOPSOIL, SEED, AND MULCH UNDISTURBED SOIL SEE SITE PLAN FOR PIPE SIZE AND TYPE THROUGHLY COMPACTED BEDDING MATERIAL 1.BEDDING MATERIAL FOR WASTEWATER LINES SHALL CONSIST OF CRUSHED STONE WITH A MAXIMUM SIZE OF 34" (FOR WATER LINES, BEDDING SHALL BE SAND) 2.BEDDING MATERIAL SHALL NOT BE PLACED ON FROZEN GROUND. 3.TRENCH SHALL BE COMPLETELY DEWATERED PRIOR TO PLACING PIPE AND BEDDING MATERIAL 4.MAINTAIN A MINIMUM OF 4'6" COVER ABOVE PIPE (5'6" ABOVE ALL WATER LINES OR OTHER PIPES IN PLOWED AREAS). INSTALL 2" RIGID INSULATION IF COVER IS 3'6"-4'6", AND USE 4" INSULATION IF COVER IS 2'6"-3'6". INSULATION TO BE 4' WIDE. COMPACTED CLEAN BACKFILL- NO STONES GREATER THAN 6" LEAKAGE AND PRESSURE TESTING NOTES 1.WASTEWATER PIPING 1.a.NEW GRAVITY AND FORCE MAIN PIPES SHALL BE PRESSURE TESTED DURING INSTALLATION AND OBSERVED BY MMES OR THE CERTIFYING DESIGNER. 1.b.SANITARY SEWER COLLECTION PIPE TESTING SHALL COMPLY WITH VERMONT ENVIRONMENTAL PROTECTION RULES (VT EPR) CHAPTER 1, SECTION 1-1003(o). 2.WATER PIPING 2.a.POTABLE WATER SUPPLY PIPING SHALL BE PRESSURE TESTED DURING INSTALLATION AND OBSERVED BY MMES OR THE CERTIFYING DESIGNER. 2.b.WATER SUPPLY PIPE TESTING SHALL COMPLY WITH VT EPR CHAPTER 1, SECTION 1-1209. D + 24"6" MINIMUM D 6" MINIMUM OFFSET SAW CUT IN ASPHALT A MINIMUM OF 6" FROM TRENCH EXCAVATION MATCH EXISTING SUBBASE MATERIAL AND THICKNESS OR INSTALL AS DIRECTED BY ENGINEER ROAD MATCH EXISTING ASPHALT THICKNESS LAWN SEE NOTE 4 WARNING TAPE CASING TO EXTEND MINIMUM 10' INTO COMPETENT BEDROCK DRILLED BEDROCK WELL DETAIL NOT TO SCALE 6" STEEL WELL CASING, INSTALL MINIMUM 20' COMPETENT BEDROCK ELECTRICAL CONDUIT, BURIED MINIMUM 18" FINISHED GRADE TO SLOPE AWAY FROM WELL CASING ELECTRICAL WIRE WATERTIGHT VENTED WELL CAP SUBMERSIBLE WELL PUMP INSTALL MINIMUM 20' FROM BOTTOM DRIVE SHOE NON-SHRINK GROUT INSTALL PER SECTION 12.2.3 AND 12.3.14 OF THE WATER SUPPLY RULES WATER SERVICE LINE SEE SITE PLAN FOR SIZING RISER PIPE (SIZE AS REQUIRED) TORQUE ARRESTOR PITLESS ADAPTER WELL CASING TO EXTEND MINIMUM 18" ABOVE GRADE LOW WATER LEVEL ALARM CHECK VALVE NOTE: THE FOLLOWING NOTES REFERENCE THE VERMONT ENVIRONMENTAL PROTECTION RULES CHAPTER 1 WASTEWATER SYSTEM AND POTABLE WATER SUPPLY RULES, EFFECTIVE 4/12/2019 (THE RULES). WATER SERVICE LINES AND PIPES SHALL BE PRESSURE AND LEAKAGE TESTED PER SECTION 1-1209 OF THE RULES. WATER SYSTEMS SHALL BE DISINFECTED PER SECTION 1-1210 OF THE RULES. SEE TABLE 11-1 FOR HORIZONTAL ISOLATION DISTANCES FROM POTENTIAL SOURCES OF CONTAMINATION TO A POTABLE WATER SOURCE, AND WATER SERVICE PIPES/LINES. LOT 2 PUMP STATION DESIGN PUMP DESIGN: -Install MYERS ME3F (0.33HP) Effluent Pump or Approved Equal -Pump Head Available: 25.0' @ 25± GPM -Friction Loss: 3.5'± -Elevation Head Loss: 1'± -Net Head at Leachfield: 20.5'± DESIGN DOSE -Design Dose (5 x distribution piping volume) → 5 x (V) → 5 x {(34" ÷ 12"/ft)2 ∏ x 140'} x 7.48 gal/ft3= 64 gallons -Actual Dose Volume → 7.0" dose x 10± gal/inch = 70± gal/dose -Doses per Day → 490 gpd ÷ 70 gal/dose = 7± doses per day -Total Number of Orifices in Distribution Piping → 30 -Proposed Leachfield Area per Orifice must be less than 25sf/orifice → LA ÷ Orifice = 525s.f. ÷ 30 orifices = 17.5 sf/orifice SEE ORIFICE FLOW CALCULATIONS FOR ADDITIONAL DETAIL 5" 4" 8"3" 56" 68" 53" 4" PVC PIPE 4" CAST IN SEAL (TYP. OF 3) 3" CARBON VENT 11 4" COUPLING 24"Ø RISER CAST IN SEAL FOR 1 12" PVC PIPE 1 1/2"Ø PVC PIPE 20"Ø RISER 16"Ø RISER 81.5"6"38"4.5"4.5" 26" 1500-GALLON STEP TANK NOT TO SCALE49" FLUID LEVEL4" INLET TEE BAFFLE 4" OUTLET TEE BAFFLE WITH STATE APPROVED FILTER 4" INVERT OUT: SEE SITE PLAN4"Ø SCH. 40 INVERT IN SEE SITE PLAN FOR INVERT ELEVATIONS 3" CARBON FILTER RISER LID WATER TIGHT JUNCTION BOX 1 1/2" TRI-CHECK VALVE (UNION/ CHECK VALVE / BALL VALVE COMBINATION) INSTALL MYERS ME3F SERIES (0.33 HP) PUMP OR APPROVED EQUAL CAST IN SEAL FOR 1 1/2" PVC PIPE 1 4"Ø WEEP HOLE IN 90° FITTING 1 1/2"Ø SCH 80 PVC FITTINGS 11/2"Ø SDR 21 PVC FORCE MAIN INSTALL FLOAT FOR 70 GAL. DOSE LOT 3 PUMP STATION DESIGN PUMP DESIGN: -Install MYERS ME3F (0.33HP) Effluent Pump or Approved Equal -Pump Head Available: 26' @ 23± GPM -Friction Loss: 3.1'± -Elevation Head Loss: -2'± -Net Head at Leachfield: 24.9'± DESIGN DOSE -Design Dose (5 x distribution piping volume) → 5 x (V) → 5 x {(34" ÷ 12"/ft)2 ∏ x 120'} x 7.48 gal/ft3= 55 gallons -Actual Dose Volume → 7.0" dose x 10± gal/inch = 70± gal/dose -Doses per Day (4 minimum required) → 490 gpd ÷ 70 gal/dose = 7± doses per day -Total Number of Orifices in Distribution Piping → 25 -Proposed Leachfield Area per Orifice must be less than 25sf/orifice → LA ÷ Orifice = 490s.f. ÷ 25 orifices = 19.6 sf/orifice SEE ORIFICE FLOW CALCULATIONS FOR ADDITIONAL DETAIL LOT 4 PUMP STATION DESIGN PUMP DESIGN: -Install MYERS ME3F (0.33HP) Effluent Pump or Approved Equal -Pump Head Available: 26' @ 21.5± GPM -Friction Loss: 2.4'± -Elevation Head Loss: 2'± -Net Head at Leachfield: 21.6'± DESIGN DOSE -Design Dose (5 x distribution piping volume) → 5 x (V) → 5 x {(34" ÷ 12"/ft)2 ∏ x 120'} x 7.48 gal/ft3= 46 gallons -Actual Dose Volume (4 minimum required) → 7.0" dose x 10± gal/inch = 70± gal/dose -Doses per Day → 490 gpd ÷ 70 gal/dose = 7± doses per day -Total Number of Orifices in Distribution Piping → 25 -Proposed Leachfield Area per Orifice must be less than 25sf/orifice → LA ÷ Orifice = 490s.f. ÷ 25 orifices = 19.6 sf/orifice SEE ORIFICE FLOW CALCULATIONS FOR ADDITIONAL DETAIL LOT 3 & 4 SINGLE TRENCH MOUND CROSS-SECTION NOT TO SCALE LOT 3 & 4 WASTEWATER TRENCH PLAN VIEW NOT TO SCALE 12" SOIL COVER OVER ENTIRE MOUND. TOP 3-4" TO BE TOPSOIL; PLACE SEED, AND MULCH EXTEND MOUND SAND 1' HORIZONTALLY FROM STONE CUT VEGETATION FLUSH TO GRADE. LEAVE ROOTS IN PLACE (IF APPLICABLE). PLOW EXISTING GRADE TO A DEPTH OF 7-8". DO NOT DRIVE CONSTRUCTION EQUIPMENT OVER THE PLOWED SURFACE UNTIL A MINIMUM 6" LIFT IS INSTALLED. 1.5"∅ SDR 21 PVC PIPE FROM PUMP STATION 1.5"∅ SCH 40 PVC 90° LONG /SWEEP ELBOW 4'0" 3 1 INSTALL MIRAFI 140N FILTER FABRIC OR APPROVED EQUAL OVER TOP OF STONE LEACHFIELD 1.5"Ø SCH 40 PVC SOLVENT PRIMED AND WELDED (SEE PRESSURE DISTRIBUTION SYSTEM DETAILS BELOW) BOTTOM OF STONE TRENCH LOT 2 ELEVATION: 391.5± LOT 3 ELEVATION: 395.5± MIN. 20" SAND REQUIRED BELOW STONE TRENCH MIN. 6" STONE BELOW PIPE 125' 4' 3 4 - 11 2" WASHED CRUSHED STONE INSTALL TWENTY-FIVE (25) TOTAL 1/8"∅ ORIFICES WITH ORIFICE SHIELDS (TYP.) FACING DOWNWARDS 1 1/2"∅ SDR 21 PVC FORCE MAIN PIPE FROM PUMP STATION INSTALL FLUSHING VALVE, SEE DETAIL, THIS SHEET 5' (TYP.)2.5' (TYP.)INSTALL 1.5"Ø SCH. 40 PVC PIPE. SOLVENT WELD JOINTS MIN. 12" STONE 1'9" LOT 2 BED IN MOUND CROSS-SECTION NOT TO SCALE LOT 2 WASTEWATER BED PLAN VIEW NOT TO SCALE 75' 7' 5' (TYP.) 34 - 112" WASHED CRUSHED STONE INSTALL FIFTEEN (15) 1/8"Ø ORIFICES PER LATERAL (THIRTY TOTAL) WITH ORIFICE SHIELDS FACING DOWNWARD (TYP.)1 1/2"∅ SDR 21 PVC FORCE MAIN PIPE FROM PUMP STATION 37.5' INSTALL FLUSHING VALVE, SEE DETAIL, THIS SHEET 3'6"1'9" 1'9" 3'6" 1'9" MIN. 18" SAND REQUIRED BELOW STONE TRENCH INSTALL MIRAFI 140N FILTER FABRIC OR APPROVED EQUAL OVER TOP OF STONE BED 1.5"Ø SCH 40 PVC SOLVENT PRIMED AND WELDED (SEE PRESSURE DISTRIBUTION SYSTEM DETAILS BELOW) 34" TO 112" WASHED CRUSHED STONE MIN. 6" STONE BELOW PIPE MIN. 12" STONE BOTTOM OF STONE BED ELEVATION: 398.5± 12" SOIL COVER OVER ENTIRE MOUND. TOP 3-4" TO BE TOPSOIL, PLACE SEED, AND MULCH EXTEND MOUND SAND 1' HORIZONTALLY FROM STONE CUT VEGETATION FLUSH TO GRADE. LEAVE ROOTS IN PLACE (IF APPLICABLE). PLOW EXISTING GRADE TO A DEPTH OF 7-8". DO NOT DRIVE CONSTRUCTION EQUIPMENT OVER THE PLOWED SURFACE UNTIL A MINIMUM 6" LIFT IS INSTALLED. 3 1 2.5' (TYP.) FLUSHING VALVE BOX NOT TO SCALE PRESSURE DISTRIBUTION LATERAL 2-45° ELBOWS OR 90° LONG SWEEP IPS COUPLER WITH THREADED CAP PVC OR FIBERGLASS VALVE BOX WITH REMOVABLE LID NON-WOVEN FILTER FABRIC ABSORPTION BED/TRENCH MOUND COVER FLOW CLEANOUT NOT TO SCALE NOTE: CLEANOUTS SHALL BE INSTALLED AT A MINIMUM OF EVERY 100' AND AT EACH PIPE JUNCTION SEWER PIPE 45° OR 22° ELBOW FITTING 4"Ø SDR 35 PVC RISER PIPE FINISHED GRADE INSTALL PVC CLEANOUT ADAPTER AND THREADED PLUG CAP WITH COILED WIRE WRAPPED AROUND THE CAP FOR FUTURE LOCATING PURPOSES. INSTALL AT OR BELOW FINISHED GRADE. STANDARD WYE FITTING DEPTH VARIES STATE APPROVED MOUND SAND SIEVE SPECIFICATIONS SIEVE NUMBER 3/8 40 60 100 200 OPENING (MM) 9.5 0.42 0.24 0.149 0.074 % PASSING BY WEIGHT 85-100 25-75 0-30 0-10 0-5 SIEVE NUMBER 4 8 16 30 50 100 OPENING (MM) 4.75 2.38 1.19 0.59 0.297 0.149 % PASSING BY WEIGHT 95-100 80-100 50-80 25-60 10-30 2-10 SIEVE NUMBER 3/8 40 200 OPENING (MM) 9.5 0.42 0.074 % PASSING BY WEIGHT 85-100 30-50 0-5 REFERENCED FROM SECTION 1-921 IN THE VT EPR CHAPTER 1 WASTEWATER SYSTEM AND POTABLE WATER SUPPLY RULES, EFFECTIVE 4/12/2019 #DATEREVISIONSNOTESSTAMP DATE: 5/4/2022 SCALE: NTS PROJECT #: 22-106 DRAWN BY: GWM CHECKED BY: DAM APPROVED BY: GWM 5/4/20224-LOT PLANNED UNITDEVELOPMENT47 CHEESEFACTORY ROADSOUTH BURLINGTON, VTHICKORY HILLSIDE, LLC WASTEWATER AND WATER SUPPLY DETAILS C-2 MOUND SYSTEM INSPECTION 1.The contractor shall notify the designer a minimum of 72 hours prior to construction. If requested, the designer will provide the layout of the proposed wastewater disposal trench locations and elevations. 2.The contractor shall provide the designer with a sand sieve of the proposed mound sand. 3.The designer shall witness the following, prior to certifying the completion of the system: 3.1.The plowed surface (entire basal area) prior to the placement of mound sand. 3.2.The force main leakage and pressure test. 3.3.The orifice flow test. Piping must be exposed to verify 1 psi (minimum) at each orifice. 3.4.The septic tank effluent filter, installed. 3.5.The pretreatment systems installed (if applicable) 3.6.The pump specifications (if an alternate is proposed) and the pump, installed. 3.7.The pump station floats, and alarm panel installed. 3.8.The finished grading, seeded and mulched.