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HomeMy WebLinkAbout10 Surfside Terrace Plan Showing Modification to Sewage Disposal Systemmpp NOTE: ENTIRE LOT IS WITHIN THE 200 FT. R.A. 3x0 x3 120 NAIL IN POST ELEV. = 13.31 NAVD88 _11511, 1A N c I$ REPLACE EXISTING 15C GAL. SEPTIC TANK W/ 2 NO ES) , is x2 V60�p'1' 3 FT. °= 0 MAPLE 12x9 PROP D TREE �= GALLI EXT. 18' 12x8 1g LAWN AREA `�a• � 4" o1P• p1p E 12x8 0 12x2 /EASTINSLEEG DIA. P L � ti !� X00 g, •. . x COVERED o 1 °`O 13x0 8 STOOP X� ?'� 10x9 g A T Q y c DRPAVED IVEWAY A00�OON �© 0 oG jO F X13.6 F� F 9�� i pPED 0 OEOK / LOCATE AND _ PaR� xs i FILL EXISTING 1� CAPE�s ► 1_16x2 CESSPOOL �pp01� wg� pROCH Ep G DECK OF D ?P'`+ , WITH 5A x,.12 pip x OR s�N pR pC:- 0 -� PROPOSED 3 �0 �� As,- TO at OR( PU�CHAMBER o O ACCESSORY BUILDIK ON POSTS GRADE EL = &5 - p A't10SOpEly JQN TO SERVICE �\ 1opROp / `''-0 B`CS ACG. BLDG. 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COVERS TO GRADE 1NV.=9.68 WV.=9.68 N CLEAN BACKnti. • • • . . 2 orrc�r®rr rr rrrrr rronr ' rn rorrrrarrro 000o0oorr 00 00o17 -1o000000 '•;.:: N PIPES v COMPARTMENT /1 '�' oq 9.95 11.__ . 9.78 8.5' BOTTOM OF SYSTEM 1030 1500 GAL MIN. COMPARTMENT /2 �� 3{4' - 1 1{2' DIA EL a7.7 COdPAC1ID DOUBLE WASHED STONE l000 GAL MIN Wj 6' LAYER oT PROPOSED 43 t �. i. S� 5 , `�,SHm tlusTONE D -60X 51' cl ss LINES EXITING D -BOX MUST 51' LENGTH REPLACE EXISTING SEPTIC TANK We C LAS OF �� �'n HIND TO TYPICAL LEACH SYSTEM CROSS SECTION AS REVISED PRECAST REINFORCED CONCRETE CRUSHED STONE LEACHING FACILITY OR CAPACITY: 2500 GALLONS PROVIDE 'SPS LEVELS' NO SCALE NOTE: 2 COMPARTMENT SAS CONSTRUCTION: 5 PRECAST 500 GALLON DRYWEIIS AS MANUFACTURED BY SHOREY ALL PIPE TO BE 4' DIA. (H-10) SEPTIC SYSTEM PROFILE PRECAST, INC. OR APPROVED EQUAL, SET END-TO-END IN A 13 FT. WIDE X 51 FT. LONG EXCAVATION TO PVC TIGHT JOINT WITH THE DEPTH AND ELEVATIONS SHOWN, SURROUNDED BY DOUBLE -WASHED 3{4 TO 1-1/2 INCH GRADED GRANITE STONE TO THE ELEVATION SPECIFIED ON THE CROSS SECTION. SAS FACILITY SHALL BE COVERED MINIMUM SLOPE OF 1/8" NO SCALE WITH SUITABLE GEOTEXTILE FILTER CLOTH AS A SUBSTITUTION FOR THE 2INCH PEASTONE COVER LAYER. PER FT. CONSERVATION NOTES 1. THE SITE IS WITHIN A RIVERFRONT AREA AS THAT AREA IS DEFINED UNDER THE MASS. WETLAND REGULATIONS. THE PROPOSED WORK ACTIVITY REPRESENTS A REDEVELOPMENT PROJECT. 2. THE WORK AREA SHALL BE RESTRICTED WITH A WORK LIMIT SILT FENCE OF STAKED FABRIC BACKED BY STAKED STRAW BALES OR AS OTHERWISE SPECIFIED BY THE YARMOUTH CONSERVATION COMMISSION WHERE SHOWN. THE WORK LIMIT SHALL REMAIN IN PLACE UNTIL THE WORK IS COMPLETE AND THE AREA CLEARED OF MINOR DEBRIS WITH GROUND COVER RESTORATION. 3. NO HOUSE- RELATED OR SEPTIC SYSTEM CONSTRUCTION WORK-RELATED ACTIVITY SHALL OCCUR BEYOND THE WORK LIMIT. 4. ACCESS TO THE WORK SITE SHALL BE FROM THE DRIVEWAY. 5. PROPOSED PATIO AREAS SHALL BE OF DRY LAID PATIO BLOCK OR BRICK AND SHALL NOT HAVE MORTARED JOINTS OR EDGES. 6. ALL OTHER AREAS DISTURBED BY CONSTRUCTION SHALL RECEIVE A 8 INCH MIN. COMPACTED THICKNESS LAYER OF TOPSOIL AND SHALL BE SEEDED WITH A CAPE COD GRASS SEED MIX SPECIFIED TO BE DROUGHT TOLERANT AND NATIVE. 7. CONTRACTOR IS REMINDED TO REFER TO THE ORDER OF CONDITIONS ISSUED FOR THE WORK ACTIVITY BY THE YARMOUTH CONSERVATION COMMISSION. S. ROOF RUNOFF SHALL BE CONTROLLED BY USE OF DRYWELL OR GRAVEL DRIP EDGE DRAINS UNTIL THE SrZ IS STABILIZED WITH VEGETATION. PUMP SYSTEM SPECIFICATIONS PROVIDE AN SEPTIC EFFLUENT / SEWAGE PUMPING SYSTEM FOR RESIDENTIAL SEWAGE DISPOSAL SYSTEMS SPI+CIFIED AS FOLLOWS: • PUMP CHAMBER - SHOREY MFG. 5 FT. ROUND PUMP CHAMBER W 30" DIAM. ACCESS MANHOLE. • PUMP CHAMBER MUST BE SPECIAL ORDERED TO HAVE A LOWER PROFILE: 12 IN. RESIDUAL LIQ. LEVEL WI"H 18 IN. LIQUID HEIGHT ABOVE THE 12 IN. RESIDUAL. (TOTAL SUMP VALUE OF 30 IN.) MINIMIZE PROFILE DUE TO GROUNDWATER INSTALLATION. TANK IS NON-BOUYANT IN SEAWATER AS SPECIFIED. * PUMP CHAMBER SHALL BE RENDERED WATERPROOF BY A SERIES OF MEASURES: IPENEX ADDITIVE CONCIETE, FACTORY WATERPROOF COATED W/ NEOPRENE BOOTS ON ALL FUNCTIONAL CHAMBER INLETS AND OUTLETS. • PROVIDE A MEDIUM DUTY, CAST IRON RING W/ SEALED BOLT -LOCKED COVER TO GRADE. * PUMP: MYERS SRM -4; PROVIDE QUICK RELEASE COUPLING FOR FORCE MAIN CONNECTION. RAIL SYSTEM IS RECOMMENDED. * LEVEL CONTROL AND ALARM SWITCHES SHALL BE SEALED, MERCURY FLOAT SWITCHES, CONNECTED THIOUGH A NEMA 4 JUNCTION BOX ATTACHED ABOVE THE CHAMBER HIGH WATER LEVEL, WIRED IN ACCORDANCE WITH STATE ELECTRICAL CODE REQUIREMENTS. ELECTRICAL PERMIT IS REQUIRED. • PUMP SHALL BE ON SEPARATE ELECT. CIRCUIT FROM ALARM SYSTEM. • ALARM SHALL BE INSTALLED IN THE BUILDING SERVED BY THE SYSTEM. • SET TETHER FLOAT SWITCHES AS FOLLOWS: * "PUMP ON" 18 IN. ABOVE TANK BOTTOM • "PUMP OFF" 12 IN. ABOVE TANK BOTTOM • "ALARM ON" 20 IN. ABOVE TANK BOTTOM • DRAW DOWN NOTE: 6 INCH DRAW -DOWN = APPROX. 73 GAL. / DOSE; OF 73 GAL. APPROX. 53 GAL. ENTERS TIE SEPTIC TANK; 20 GAL. FLOWS BACK TO THE PUMP CHAMBER AFTER EACH CYCLE. • PROVIDE A GATE VALVE ON THE 2 INCH FORCE MAIN INSIDE THE PUMP CHAMBER LEAVE IN OPEN POSITIGN. UPON INSPECTION OF SEPTIC TANK TURBULENCE THE GATE VALVE MAY BE ADJUSTED TO THROTTLE THE PUMP FLOW • PROVIDE CHECK VALVE ON 2" FORCE MAIN INSIDE CHAMBER PROVIDE IA" WEEP HOLE ON FORCE MAIN E CHAMBER ON THE lD' BOX SIDE OF THE CHECK VALVE. • 2 IN. DIAM. HORIZONTAL PRESSURE PIPE RUN SHALL BE SET AT A MIN. OF 4 FT. UNLESS SYSTEM SHALL BE TEMRIZED. CONSULT ENGINEER REGARDING INSULATION OPTIONS. * A 2 IN. DIAM. "TEE" FITTING IS REQUIRED WITHIN THE SEPTIC TANK AT THE END OF THE PRESSURE LINE. HE 2 IN. DLAM. INLET AT THE SEPTIC TANK SHALL BE ORIENTED VERTICALLY AND EXTEND 10 INCHES BELOW THE TANK LIQUID LEVEL.THIS 2 IN. DIAM. INLET PIPE SHALL HAVE A HORIZONTALLY ORIENTED "TEE" FITTING AT THE INLET PIPE OUTLET AT THE APPROX. 10 N. DEPTH. • PUMP AND ALARM SHALL BE TESTED PRIOR TO COMPLETION OF BACKFILLING * ALL PIPING SHALL BE PROPERLY JOINTED, TIGHT -GLUED SCH. 40 PVC; PROVIDE FORMED MORTAR / CONCIKTE THRUST BLOCKS TO SECURE PIPE BENDS GENERAL NOTES 1. ELEVATIONS REFER TO NAVD88. REFER TO THE BENCHMARKS; # 1 A NAIL SET IN THE FENCEPOST WHERE SIOWN. # 2 LEADING OUTSIDE EDGE OF THE GARAGE SLAB AT CENTER POST. CONTACT CAPE COD ENGINEERING, INC. FOR ADDITIONAL I.EVATION INFORMATION. 2. PLAN REFERENCE: PLOT PLAN DATED JULY 14, 2014, OUTERMOST LAND SURVEY, INC. 3. ALL SEPTIC SYSTEM CONSTRUCTION MATERIALS AND PROCEDURES SHALL CONFORM TO THE STATE SANFARY CODE, TITLE 5 AND TOWN OF YARMOUTH HEALTH DEPT. APPROVAL FOR THE DESIGN. 4. THIS PLAN ASSUMES THAT THE SEPTIC SYSTEM UPGRADE PLAN DATED APRIL 12, 2011, AS PREPARED FOR KTHLEEN V. MARTIN BY CAPE COD ENGINEERING, INC. WAS IMPLEMENTED AS SHOWN AND INSPECTED BY YARMOUTH HEALTH DEPT. 5. INSTALLATION CONTRACTOR SHALL VERIFY THE TWO EXISTING BUILDING SEWER PIPES AND CONNECT OILY TO CAST IRON PIPES, OUTSIDE OF THE BUHDING. 6. WATER SERVICE PIPE SHALL BE EXACTLY LOCATED. PROPOSED PUMPING SYSTEM PRESSURE PIPE WHERECROSSING THE WATER SERVICE SHALL BE SLEEVED IN A CONTINOUS 4 IN. PVC PIPE SEALED WITH MORTAR AT EACH END. 7. THE EXISTING REMAINING SEPTIC SYSTEM COMPONENTS: CESSPOOLS SHALL BE LOCATED BY FOLLOWINCEMSTTNG PIPES AND OVER -FLOW LEADS. THE CESSPOOLS SHALL BE REMOVED OR, IF NOT IN CONFLICT WITH OTHER YARD FEA'URES FILLED IN COMPLETELY WITH SAND 8. SOIL TESTS INDICATE THAT NO OVER -EXCAVATION IS NECESSARY HOWEVER A 5 FT. PERIMETER EXCAVATON MUST BE DONE TO REMOVE ANY UNSUITABLE SOIL IF ENCOUNTERED BELOW AND AROUND THE PERIMETER OF THE NEW SAS PORTION. SOIL EVALUATION INDICATES NO OVER -EXCAVATION IS REQUIRED. 9. CONTACT CAPE COD ENGINEERING, INC. PRIOR TO EXCAVATION TO SCHEDULE SOIL VERIFICATION INSPECION IF REQUIRED. 10. REPLACE THE STOCKPILED SUBSOIL ("B" HORIZON) PRIOR TO ROUGH GRADING AND TOPSOIL APPLICATIOf AND LAWN SEEDING. LANDSCAPE IMPROVEMENTS SHALL BE AS DIRECTED BY THE OWNER Il. FULLY COMPACT ANY PIPE BED TRENCHES BENEATH DRIVEWAY PAVEMENT AREAS. PROVIDE SUITABLE BSE COURSE PRIOR TOP PAVING. 12. INSTALLER SHALL. CONTACT ENGINEER AT TIME OF SYSTEM COMPLETION PRIOR TO EARTH COVERING FR SYSTEM CERTIFICATION IF REQUIRED. 13. CONTACT ENGINEER IF ANY QUESTIONS OR DOUBT'S ARISE REGARDING SOIL CONDITIONS ENCOUNTERED URING CONSTRUCTION. 14. NO KNOWN WELLS EXIST WITHIN 200 FT. OF THE PROPOSED SEPTIC SYSTEM COMPONENTS. THE SITE IS SEVED BY TOWN WATER DESIGN DATA HYD. LOADING • DWELLING - 5 BEDROOMS X 110 GPD/BR = 550.0 GPD • ACCESSORY BUILDING -1 BEDROOM X 110 GPD =110 GPD -SEE PUMPING SPECIFICATION1 * TOTAL = 660 GPD SEIMC TANK DESIGN REPLACE EXISTING SEPTIC TANK WITH 2 COMPARTMENT, 2,500 GALLON SEPTIC TANK, H-10 RATED: # 1 COMPARTMENT -1,500 GAL.; # 2 COMPARTMENT 1,000 GAL. COMPARTMENTS SHALL BE FLOW CONNECTED WITH A 4 INCL TEE FITTINGS, W/ INLET AND OUTLETS EXTENDING A MINIMUM OF 10 INCHES BELOW THE LIQUID LEVEL. BOTH OUTLETS IN EACH COMPARMENT SHALL BE FITTED WITH A GAS BAFFLE. SAS DESIGN EXTEND SAS BY 18 FT. (SEE PLAN) PERCOLATION RATE - LESS 5 MPI LONG TERM HYDRAULIC LOAD RATE = 0.74 GALIS.F. SIDE AREA = 2 (12.8'+ 511) (2) = 255.2 S.F. BOTTOM AREA = 12.8'X 51'= 652.8 S.F. LOADING: 255.2 S.F. + 652A S.F. X 0.74 GAL/S.FJDAY = 671.9GPD TOTAL LEACHING CAPACITY = 671.9 GPD MODIFY EXISTING SAS AS SHOWN TO MATCH PROPOSED DIMENSIONS *THF DESIGN IS NOT SUITABLE FOR USE WITH A GARBAGE DISPOSAL UNIT GRIMES.DWG