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HomeMy WebLinkAboutEngineered Plans - Rev. 2017LEGEND PROPOSED CONTOUR ® PROPOSED SPOT GRADE --98-- EXISTING CONTOUR + 96.52 EXISTING SPOT GRADE W- EXISTING WATER SERVICE TEST PIT m STRAWBALE - WORK Permit valid for REPAIR OP SEPTIC SYS'1'EM ONLY, due: to State and Local septic variances. Board. of Ilealth review and approval is required for any ..fufut-e additions/rcawN atiuns/rlterations to sewage facilities and/or structul es/dtvvel ling. GENERAL NOTES: r1- 1. ALL CHANGES TO THIS PLAN MUST BE APPROVED BY THE LOCAL BOARD OF HEALTH AND THE DESIGN ENGINEER. 2. ALL WORK AND MATERIALS SHALL CONFORM TO THE REQUIREMENTS OF THE STATE ENVIRONMENTAL CODE, TITLE V, AND ANY APPLICABLE LOCAL RULES AND REGULATIONS. 3. THE SEWAGE DISPOSAL SYSTEM SHALL NOT BE BACKFILLED PRIOR TO INSPECTION AND APPROVAL BY THE BOARD OF HEALTH AND THE DESIGN ENGINEER. 4. ANY CONDITIONS ENCOUNTERED DURING CONSTRUCTION DIFFERING FROM THOSE SHOWN HEREON SHALL BE REPORTED TO THE DESIGN ENGINEER BEFORE CONSTRUCTION CONTINUES. 5. ALL ELEVATIONS BASED ON NAVO DATUM. 6. THE DESIGN ENGINEER IS NOT RESPONSIBLE FOR THE FAILURE OF THE CONTRACTOR OR OWNER TO NOTIFY THE LOCAL BOARD OF HEALTH FOR PROPER INSPECTIONS DURING CONSTRUCTION. 7. WATER SUPPLY PROVIDED BY MUNICIPAL WATER. EXISTING WATER SERVICE TO BE RE -LOCATED AND SLEEVED AS SHOWN. 8. ALL AREAS DISTURBED DURING CONSTRUCTION SHALL BE RESTORED TO A CONDITION AGREED UPON BETWEEN OWNER AND CONTRACTOR. 9. R SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR TO VERIFY THE LOCATION OF ALL UNDERGROUND UTILITIES, PRIOR TO BEGINNING CONSTRUCTION. 10. EXISTING LEACHING (IN PROP LEACH FOOTPRINT) TO BE CRUSHED, PUMPED AND REMOVED PER TITLE 5. 11. 48 HOUR NOTICE FOR ENGINEER CERTIFICATION 12. THIS PLAN IS TO BE USED FOR SEPTIC SYSTEM PURPOSES ONLY AND IS NOT TO BE CONSIDERED A PROPERTY UNE SURVEY 13. NO PRIVATE WELLS WITHIN 100 FT. OF PROPOSED LEACHING 14. ALL PIPE TO BE 4' SCH 40 O 1/8 -/FT (UNLESS SPEC. OTHERWISE) 15. THE DESIGN OF THIS SYSTEM DOES NOT ALLOW FOR THE USE OF A GARBAGE GRINDER 16. PLACE GEO-GRID UNDER LEACHING AS SHOWN. 17. REMOVE UNSUITABLE SOILS 1 FEET AROUND LEACHING TO EL 4.92 OR TOP OF C LAYER AND REPLACE WITH CLEAN MEDIUM SAND PER TITLE 5. 18. PLACE 40m1 POLY LINER AROUND ENTIRE LEACHING INSIDE OF PROPOSED RETAINING WALL, FROM ELEVATION 8.0-4.0 SCALE: 1"=20' Yarmouth tlealtll 1.}apartment APPR0 VVL1Y, ARTHUR & JUDITH WARREN #18 COLUMBUS AVENUE (22/443) IW#5 I W#1 N /F MICHAEL & JUDITH McKAY #8 SHORE ROAD (16/10) F AN IW#2 BY BRADHALLGGED IW#4 �,- - ----4 4 IW#3 ------------------- ---------------------- ---- ___ - 6 - SSM - - - LILA TYEN EV. TRUST #91 MASSACHUSETTS ACENUE Co r � 1V p• 3 #91 Tp eUF �\ EXISTING 3 BEDROOM DWELLING FF=10.0 TOF=8.90 m / OD PROP, TIMBER 2 w �0• RETAINING WALL w (SEE PAGE 3) 7- S ' 1 ES PROP. GEOGRID ` (SEE NOTE 19) PROP. SOIL 11rJ�' j' REMOVAL (SEE NOTE 17) `� I O ►Vp �I_ "JH#1 1 W � l VARIANCE REQUESTS - MAXIMUM FEASIBLE COMPLIANCE PER 310CMR15-405 (1)(h): 1) A 6 FT. VARIANCE FROM 310 CMR 15.211, TO ALLOW LEACHING TO BE A MIN. OF 14.0' FROM DWELLING VS REQUIRED 20 IT. (UNER PROV.) PER TOWN OF YARMOUTH BYLAW (SECT 3.7): 2) A 30 FT. VARIANCE FROM 310 CMR 15.211. TO ALLOW LEACHING TO BE A MIN. OF 70.0' FROM WETLANDS VS REQUIRED 100 Fr. -----6 -7 WEST YAI N cn r` rn LOCI U 91 MA U J PROP. 2,000G 2 -COMP TANK (1500G/500G) IRELOCATED WATER SERV. BENCHMARK TOP OF CONCRETE BOUND. ELEV=7.17 NAVD-1988 47.25'00"--7 OVERHEAD---- --'� --- -- -°- 6 MASSACHU- E TTS AVENUE,� EDWARD A. ST0E�) j, No.R g N MAP LOCUS INFORMATION TITLE REF: 27491/025 PARCEL ID: MAP 16 PAR. 12 FLOOD ZONE: "AE11" COMMUNITY PANEL: 25001CO588J DATED:07/16/14 AREA: 0.12 ACRES SEPTIC SYSTEM REPAIR PLAN LOCATED AT: 91 MASSACHUSETTS AVE. WEST YARMOUTH, MA PREPARED FOR DANIEL TYE MAY 23, 2017 REV: JUNE 28, 2017 MEYER & SONS INC. P.O. Box 981 E. SANDWICH, MA 02537 PH. (508)360-3311 fax (774)413-9468 meyerandsonstitle5©gmail.com SHEET 1 OF 3 697 PROPOSED TANK INSTALL RISERS W/IN 6" OF FINISH GRADE T.O.F. EL.=8.90 NOTE: MAGNETIC TAPE TO BE PLACED OVER ALL COVERS PUMP CHAMBER D BOX INSTALL RISERS to FINISH GRADE INSTALL RISERS WAN 6' OF FINISH GRADE EL7.60± r7-50± [EL_ . 7.50± .Y EL.6.75 " *S=2$ 6" " 4" SCH 40 PVC (MIN.) 10"1 500G 0 S= 1% (MIN.) A: TEE'S ARE TO BE COMP. INV.= 5.75 4" SCH 40 PVC r ' : PUMP CHAIN. INV.= 5.50 Exist. Invert 1,50OG GAS J (SEE DETAIL COMP. BAFFLE INV.= 6.15 w/ FILTER BELOW) PROPOSED 1,500/500 GALLON 2 -COMPARTMENT SEPTIC TANK NOTES: 1) CONTRACTOR SHALL VERIFY ALL EXISTING PIPE INVERTS PRIOR TO CONSTRUCTION. 2) TANK/PUMP CHAMBER, AND D -BOX SHALL BE SET TRUE TO GRADE ON A MECHANICALLY COMPACTED SIX INCH CRUSHED STONE BASE AS SPECIFIED IN 310 CMR 15.221(2). 3) INSTALL PVC INLET/OUTLET TEES IN SEPTIC TANK AS REQUIRED. 4) GAS BAFFLE W/ FILTER TO BE INSTALLED ON OUTLET TEE AS MANUFACTURED BY TUF-TITE, ZABEL OR EQUAL. INSTALL 1' PVC CONDUIT TO HOUSE FOR HARING WITH WATERTIGHT JOINTS. HARE HIGH WATER ALARM FLOAT TO GP 2000 HIGH WATER ALARM PANAL ON CIRCUIT SEPARATE FROM CIRCUIT TO THE PUMP. HOISTING CABLE 7x19 STAINLESS STEEL 1/8" DIAMETER. / 1,760 LB. STRENGTH. PC INV.(OUT)=5.50 ALARM ON EL: 2.83 TP- 1 PUMP ON EL: 2.50 7.10 A PUMP OFF EL: 2.25 T2�'� - BOTTOM OF INT. P.C. El. 1.50 10YR 4/1 F.G. EL: 9.01 INSTALL SANITARY TEE CNV.= 7.43 INV.= 7.60 D -BOX TEE SHALL NOT EXTEND BELOW FLOW UNE (USE DB -5 W/BAFFLE) FINISH GRADE=8.5 MAINTAIN 2% MIN SLOPE OVER LEACHING AREA L=12'(MAX) 4" SCH 40 PVC 0 S= 1% (MIN.) 3.3" TO INVERT - ZN of Mgssq c D RRE y� ��Y,�', SEPTIC SYSTEM PROFILE N.T.S. - PROVIDE WATERTIGHT CONCRETE RISER WITH SECURED COVER TO GRADE NEMA 4 JUNCTION BOX CORROSION RESISTANT & LIQUID -TIGHT CABLE CONNECTORS SUPPORTED BY 1-1/4" PVC CONDUIT. JOINTS TO BE MADE WATERTIGHT -2"BALL VALVE w/ UNIONS SCH. 80 PVC GEORGE FISHER CO. MODEL NO. 560 OR EQUAL 2"SCH. 40 DISCHARGE TO D -BOX (USE PRESSURE FITTINGS) •2"SCH. 40 TEE w/ CLEAN-OUT CAP PROVIDE 1/4" WEEP HOLE IN DISCHARGE PIPE FOR SELF -DRAINING FORCE MAIN 2" BALL CHECK VALVE SCH. 80 PVC 100 P.S.I. FLOWMATIC MODEL No. 2085 PROVIDE 2- WIDE ANGLE FLOATS•x 2" SCH. 40 PVC DISCHARGE PIPE FLOAT NOA: PUMP FLOAT NO.2: ALARM ACTTIIVATIIONRNES (BARNES618 073612 EORAEQUAL) BARNES SEV412 PUMP .5 H.P. 115 V 2" DISCHARGE PASSING 2" SOLIDS OR EQUAL NOTE: SEPTIC TANK AND PUMP CHAMBER TO BE FACTORY WATERPROOFED AND SEALED WITH THOROSEAL OR EQUAL. PUMP & ACCESSORIES AVAILABLE AS A UNIT THROUGH WIGGEN PRECAST CORP., BOURNE MA. (800) 564-6774 PUMP & ACCESSORIES AVAILABLE THROUGH WILLIAMSON ELECTRIC (781) 444-6800 PUMP DETAIL N.T.S. 1. BUOYANCY CALCULATIONS MP -SEPTIC TAN uplift: 12' x 7' x 4 x 62.4 = 20,966.4 lbs around cover: 12' x 7' x .75 x 120 = 7,560 lbs empty tank: 16,000 lbs ar-Qundcover + empty tank > uplift: 7,560 + 16,000 = 23,560 lbs > 20,966.4 lbs TANK BUOYANCY CHECK O.K. DOSING & STORAGE REQUIREMENTS DAILY FLOW: 330 GPD DOSING REQUIRED: 8 CYCLES/DAY (SAND) 330 8 = 41.25 GALLONS/CYCLE DISTANCE REQUIRED BETWEEN PUMP ON AND PUMP OFF FLOATS: 41.25 GAL/CYCLE--a- 125 GAL/FT = 0.33 FT/CYCLE (4") STORAGE REQUIRED ABOVE WORKING LEVEL: 330 GALLONS STORAGE PROVIDED: INV. EL:4.75 - ALARM ON EL: 2.08 =2.67' STORAGE PROVIDED = 2.67' X 125 GAL/FT = 333.0 GALLONS INV. EL.=7.33 MIN. COVER OVER S.A.S. = 9" TWO INSPECTION PORTS(MIN.) 4 ROWS OF 6 UNITS AT 4.0'/UNIT = 24.0'/ROW SOIL ABSORPTION SYSTEM (PROFILE) BREAKOUT=TOP ELEV.=7.72 INV. ELEV.= 7.33 BOTTOM ELEV.= 7.05 5' MIN. ABOVE BOTTOM OF T.P. EXCAVATION OR G.W. (5.05 PROVIDED) ADJ. GROUNDWATER EL.=2.0 SOIL LOG DATE: MARCH 30, 2017 SOIL EVALUATOR: DARREN M. MEYER, R.S., WITNESS: A. VONHONE, YARMOUTH Elev. TP- 1 Depth 7.10 A 0" LOAMY SAND 10YR 4/1 6.10 12" B LOAMY SAND 10YR 5/8 4.92 26" C PERC 0 4.5 MEDIUM SAND 2.5Y 7/4 0.35 81" PERC RATE <2 MIN/IN, (-Cl- HORIZON) GROUNDWATER OBSERVED AT 68" EL 1.43 WELL: MIW-29, ZONE A, LEVEL 7.7, ADJ 1.3' ADJUSTED GROUNDWATER ELEV. 2.73' USE BOARD OF HEALTH ALLOWED ADJ 2.0' Poly liner (see note 18) PACE RESTORE VEGETATIVE COVER BACKFILL WITH CLEAN PERC SAND TO TOP OF CHAMBERS PLACE GEO-GRID UNDER LEACHING 2.83' ON TOP OF EFFECTIVE WIDTH = 4 x 2.83' = 11.32' EXIST. MATERIAL USE 4 ROWS OF 6 INFILTRATOR QUICK 4 PLUS STD LP (3.3" INVERT) UNITS -NO STONE TYPICAL SECTION tLT.S. DESIGN CRITERIA NUMBER OF BEDROOMS: 3 BEDROOM DESIGN SOIL TEXTURAL CLASS: CLASS I DESIGN PERCOLATION RATE: <2 MIN/IN DAILY FLOW: 330 G.P.D. DESIGN FLOW: 330 G.P.D. GARBAGE GRINDER: NO (NOT DESIGNED FOR GARBAGE GRINDER) SEPTIC TANK/PUMP CHAMBER: 330 gpd x 200% = 660 gpd USE 2 -COMP 2,000G TANK (1,50OG/500G) LEACHING AREA REQUIRED: (330)/0.74 = 445.94 S.F. DISTRIBUTION BOX: (3 OUTLETS (MINIMUM)) PRIMARY S.A.S. USE 4 ROWS OF 6 - INFILTRATOR QUICK 4 STD LP (3.3" INVERi) UNITS WITH NO STONE BOTTOM AREA: (GENERAL USE APPROVAL FOR 4.73 SF/LF OF CHAMBER) (CHAMBER UNITS) 24 UNITS x 4.00 LF x 4.73 SF/LF = 454.08 SF TOTAL AREA = 454.08 SF DESIGN FLOW PROVIDED: 0.74GPD/SF(454.08SF) = 336 GPD > 330 GPD req'd PROPOSED SEPTIC SYSTEM UPGRADE PLAN 91 MASSACHUSETTS AVENUE, WEST YARMOUTH, MA Prepared for: Tye Design and Site Plan by: SCALE DRAWN DATE MEYER& SONS, INC. N.T.S. DMM 05/23/17 Po BOX 981 EAST SANDW/CH, MA 02537 REV. DATE SHEET NO. 508-W-2922 06/28/17 2 of 3