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HomeMy WebLinkAbout23.288 - Site and Sewage Plan (Copy 2)11 ROUTE 28 LOCUS oW LOCATION MAP LOT 8 11,507 t S.F. (0.26 t AC.) ASSESSORS MAP: 23 PARCEL. 288 019C8) CURRENT ZONING: R-25 BUILDING SETBACKS: F: 30' S: 15' R: 20' FLOOD ZONE: A9 CEL 10) MAXIMUM BUILDING COVERAGE: 25% PROPOSED BUILDING COVERAGE = 127. EXISTING BUILDING COVERAGE = 7.5% (f)-\ E 10� 1s.5 T I 'j III=III= ELEV - 4 MIL POLY 6.0' 3.5' ASPHALTIC SEALING 10.0 . ' 01 ELEV =III=ii1 • REINFORCING STEEL: - (D: #4 0 16" o/c 12" 16" © :5 ea #4 2 1z" ® : #4 0 16" o/c #4 0 Ir o/c ELEV 3 PROPOSED CONCRETE RETAINING WALL (21'x 42') A10. 1 EXISTING G 'WALL COTOP o'TTfALL 122 -+9. 6 x BENCHMARK AT g3. g5' CONCRETE BOUND 5+ ELEVATION = 10.14 8' + 9. 6 � W TH_z SHED 16. 1o' 31' PC / 10' = pIdOPOSED 441' 11 �4'r' J B FDROOId 9. 7 N ST 1 T LI.5 Gr 10 Ac1t) EXISTING SEPTIC SYSTEM , (SEE NOTE 15) r.j= 9 �: 1 ;EXISTING to DWELLI lr el.= 10.3 0 (9: 10 DECK TO �E REMOVED 27'5.448' ` co / ! o 9 J 9.5 CATCH BASIN \ 9. 1 op 9.2 a �� W �.�9.3 KEY: 9.2 EXISTING CONTOUR: L 0 �-- PROPOSED CONTOUR- ........................ EXISTING SPOT ELEVATION: 25.5 PROPOSED SPOT ELEVATION: 25 TEST HOLE: --- UTILITY POLE: •0 - FENCE LINE: -- HYDRANT: -6- RETAINING WALL: TREE: LE DEMAREST-McLELLAN ENGINEERING 24 SCHOOL STREET P.O. BOX 463 WEST DENNIS, MASSACHUSETTS 02670 PHONE & FAX : (508) 398-7710 DM # 02-03_ INSPECTION SCHEDULE INSPECTION / t ENGINEER TO INSPECT 6' REMOVAL OF UNSUITABLE SOIL. INSPECTION # 2: ENGINEER TO STAKE LOCATION OF RETAINING HALL. INSPECTION f 3: ENGINEER TO INSPECT WALL FOOTING AND RE -BAR PRIOR TO POURING HALL. INSPECTION # 4: ENGINEER TO INSPECT INSTALLATION OF SEPTIC SYSTEM COMPONENTS, PUMP SYSTEM AND RETAINING WALL. REQUIRED VARIANCES FROM TITLE FIVE: 1. SECTION 15.211 (1): LEACH AREA TO BE LESS THAN 10' FROM PROPERTY LINE. REQUIRED VARIANCE FROM THE TOWN OF YARMOUTH HEALTH REGULATIONS: 1. REGULATION 3.7: LEACH AREA TO BE LESS THAN 10' FROM PROPERTY LINE. (SEPTIC SYSTEM HAS BEEN DESIGNED TO MAXIMUM FEASIBLE COMPLIANCE.) T EST HOLE LOGS NOTES: ENGINEER: THOMAS McLELLAN, P.E. 1. VERTICAL DATUM: NGVD WITNESS: AMY VON HONE, R.S. 2. MUNICAPAL WATER IS AVAILABLE. DATE: 3-14-02 3. SCHEDULE 40 - 4" PVC PIPE TO BE USED THROUGHOUT SEPTIC SYSTEM. PERCOLATION RATE: < 2 MIN/IN 4. ALL PRECAST UNITS TO CONFORM WITH AASHTO H-10 & H-20 LOADING SPECIFICATIONS. 5. PIPE PITCH= 1,14" PER FOOT, (UNLESS NOTED OTHERWISE). TH-1 TH-2 8.9 9.3 6. FIRST 2' OF PIPE OUT OF D -BOX TO BE SET LEVEL. 0/A HORIZON ELEV 0/A HORIZON ELEV 7. THE SEPTIC SYSTEM HAS `NOT BEEN DESIGNED TO ACCOMODATE THE LOAIrfY SAND LOAMY SAND USE OF A GARBAGE DISPOSAL. 9" fOYR 312 82 8" fOYR 3/2 8.7 8. ALL CONSTRUCTION DETAILS ARE TO BE IN CONFORMANCE WITH THE B HORIZON B HORIZON STATE OF MASS. ENVIRONMENTAL CODE (TITLE FIVE) AND LOCAL LOAMY OA 6 SAND HEALTH REGULATIONS. 24" 6.9 26" 7.1 9. CONTRACTOR TO VERIFY LOCATIONS OF ALL UTILITIES PRIOR C,HORtZ0N, C HORIZON TO CONSTRUCTION. FfNE SAND FINE SAND 2.5Y 813 2.5Y 8/3 10. GROUND COVER OVER ALL SEPTIC SYSTEM COMPONENTS NOT TO EXCEED 3.0'. 54" 4.4 56" 4.6 11. ALL UNSUITABLE SOIL (A & B HORIZON, APPROX. 26" DEEP) WITHIN 5' OF c OBSERVED OBSERVED PROPOSED LEACH AREA IS TO BE REMOVED AND REPLACED WITH GROUND WATER CLEAN MEDIUM SAND. 120" -1.1 120" GROUND WATER -0.7 12. A 2 BEDROOM DEED RESTRICTION IS TO BE FILED AT THE BARNSTABLE REGISTRY OF DEEDS. 13. AN ELECTRIC PERMIT IS REQUIRED PRIOR TO INSTALLATION OF USGS GROUND. WATER ADJUSTMENT PUMP SYSTEM. WELL: MIW-29, ZONE: B, ADJUSTMENT: 3.9' AVERAGE OF A & B ZONE = (3.9 + 2.6)/2 = 3.3' 14. SEPTIC TANK AND PUMP CHAMBER ARE TO BE WATER PROOFED BY USE ADJUSTMENT OF: 3.3' - I'= 2.6' MANUFACTURER WITH IPANEX CONCRETE ADDITIVE OR CONSEAL 55. ADJUSTED GROUND WATER ELEVATION = 6.9' A 6" EZ WRAP IS ALSO REQUIRED FOR BOTH TANKS. 15. EXISTING SEPTIC SYSTEM (1000 GAL TANK WITH 2 FLOWDIFFUSORS) IS TO BE PUMPED AND ABANDONED. SEPTIC SYSTEM DESIGN FLOW ESTIMATE: -9- BEDROOMS AT 110 CAL/DAY/BEDROOM = 220 CAL/DAY SEPTIC TANK: 220 CAL/DAY x 2 DAYS = 440 GAL USE1500 GALLON SEPTIC TANK LEACHING AREA: USE -4 IN1'ILTRATORS (STANDARD CHAMBERS) WITP 3' OF STONE AROUND SIDES AND 2.5' AT ENDS (30' z 9' x 7" DEEP) SILIF, AREA: 39 x 2 x 7/12 = 45 SF (.74) = 33 GAL/DAY BO, TOM AREA 30' x 9' = 270 SF (74) = 200 GAL/DAY CAPACITY = 233 GAL/DAY 14' 12'1 DECK ---PROPOSED - - -- - - --. - - 2 BEDROOM 26, DWELLING 46' SEPTIC SYSTEM SECTION - _- PROPOSED `DWELLING 12.5 COVERS WITHIN 12" OF COVER WIT17IN 6' OF GRADE TOP OF FOUNDATION FINISHED GRADE (ONE COVER WITHIN 6" OF GRADE) 2" PRESSURE LINE 95 TEE AT INLET ELEV. 8.2 ELEV 7.95 aH-108.25 ELEV. H-20 ELEV. EL 1500 GAL ELEV. � 1000 GAL DRAIN HOLE D -BOX 1249 ELEV. i SEPTIC TANK PUMP CHAMBER 12.66 (6" OF (6" OF STONE UNDER OR WITH MYERS SRM -4 ELEV. STONE ELEV. MECHANICALLY COMPACTED) PUMP. PUMP ALARM 12.48 UNDER PACKAGE TO BE INSTALLED ) ELEV. TEE SIZES: IN DWELLING POWERED RVLET: 6" UP, 13" DOWN BY A CIRCUIT SEPARATE OUTLET: S UP, 14 DOWN FROM THE PUMP POWER, (DISTANCE BETWEEN (GAS BAFFLE AT OUTLET TEE) ON OFF SWITCH TO BE 3" APPROVED BY: i 4F UMAS J. 'LELL0 n, CIVIL x.334 o �' 2" PEASTONE 314" - 1 112" WASHED STONE ,,-- ELEV: 12.9 II- - ®11 A 11.9 E - < 0 ELEV. 2.5'-3' IE 30' -> 5. 4 INFILTRATORS (STANDARD CHAMBERS) WITH 3' OF STONE AROUND SIDES AND 2.5' AT ENDS (30' x 9' x 7" DEEP) (DISTANCE BETWEEN ON AITCH ADJUSTED GROUNDWATER ELEV: 6.9 AND ALARM TO BE 12") DATE: of sJOHN Z. DEMAREST, JR. No. 36859 THOMAS MCLELLAN, P.E. II JOHN Z. DEM AREST JR., P.L.S. SITE AND SEWAGE PLAN L OCA TION RECEIVED oEI 139 EXETER ROAD WEST YARMOUTH, MA N 0 V 2 0 2002 o'-IIil OF YARMOUTH PREPARED FOR: P-10AR 7 OF APPEALS REEF REALTY SCALE: 1" = 20' DATE: 6-21-02 REFERENCE: LAND COURT CASE #17149 REVISED: 11-6-02 REVISED: 11-19-02