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HomeMy WebLinkAboutEngineer PlanCOVERS TO BE WATERTIGHT AND SEPTIC SYSTEM PROFILE TOP OF FOUNDATION BROUGHT TO WITHIN 6" OF FINAL GRADE �I, �t to scale} EL. 21.0' EL. 19.0' 2" of,',' to,"' DOUBLE WASHED PEASTONE OR GEOTEXTILE 4" CAST IRON or EQUIVALENT FILTER FABRIC MIN. PITCH 1 4" PER FOOT 4" SCHEDULE 40 PVC PIPE 4" SCHEDULE 40 PVC PIPE :.'. �L_11 (DATUM: ASSUMED) SCALE: 1" =30' REF.' PB 190 PG 79 LEGEND -G G -- 6-6— GAS LINE -W W — W—W- WATER LINE -9 E 9 E E EXIST, ELECTRIC 99 EXIST, CONTOURS ---------- ® PROP. CONTOURS Wz 'o;.EW%T— UNDERGROUND UTIL, FLOW LINE 14" 1500 GALLON SEPTIC TANK (PROPOSED) BENCHMARK: TOP OF FNDN EL. 21.0' LOT I1 18,400 SF± MAP 68 PLOT 90 14.3' 37,5' - PROP, 1500 GS1 WC PATIO EXISTING 0 , -''� 4 BR DWELLING Flaherty Environmental Services PO. Box 331 INSP. PORT W/I 3" OF GRADE Harwich, MA 42645 CLEAN SAND 774.994.1166 - /i—©� CJ i� • C r o-o-o-o-o- o-o ouuoou°°°° ° °°o°O O o O°O°O°o°ooEL_11.0' 00000a0000 c00000 00-° C0 O0 °O°O°OESOIL ABSORPTION SYSTEM (3) 500 GALLON H-20 CHAMBERS T WITH 4' STONE AROUND IN A 4" to .¢ DOUBLE WASHED STONE 12.83' X 33.5' X 2' CONFIGURATION BOTTOM OF TEST HOLE EL. 8.0' USGS ADJUSTMENT: N/A I :9 GROUNDWATER ELEV: N/A } Th 1� A 14.3' GARAGE --.� DRIVEWAY \ 19 41 71.83' MULFORL) STREET Yarmouth Health Department APPROVED a Date DATE: 411312023 VENT IF REQUIRED 2_0' 5.0' 1 EL. 8.0' LOCATION MAP NTS J Cn ' 1 0 REVISED: 412312023 OF MA' q SS cti� SITE AND SEWAGE PLAN FOR EDVNA'' B & B EXCAVATION, INC/ ST N_ _ JAMES WELCH NO 89 WITCHWOOD ROAD SOUTH YARMOUTH, MA ONA L PAGE 1 OF 2 GENERAL NOTES I DESIGN CALCULATIONS I Flaherty Environmental Services 1. ALL PRECAST COMPONENTS TO BE H-10 RATED. ALL COMPONENTS WITH ANY ANTICIPATED VEHICULAR TRAFFIC TO BE H-20 RATED. 2. THE DESIGN OF THIS SYSTEM DOES NOT ALLOW FOR THE USE OFA GARBAGE GRINDER, 3. MUNICIPAL WATER IS AVAILABLE. 4. ALL CONSTRUCTION TO CONFORM WITH 310 CMR 15.000 AND ALL OTHER APPLICABLE LOCAL, STATE AND FEDERAL CODES AND REGULATIONS, 5. INSTALLER/CONTRACTOR TO REVIEW & VERIFY ALL ELEVATIONS AND DETAILS AND REPORT ANY DISCREPANCIES TO DESIGNER PRIOR TO CONSTRUCTION OR ASSUME ALL RESPONSIBILITY. 6. INSTALLER/ CONTRACTOR IS RESPONSIBLE FOR MAINTAINING SAFE WORK AREA, VERIFYING ALL UTILITIES AND NOTIFYING "DIG SAFE" (1-888-344-7233) 72 HOURS PRIOR TO CONSTRUCTION. Z ANY CHANGES TO OR DEVIATIONS FROM THIS PLAN MUST BE APPROVED IN WRITING BY FLAHERTY ENVIRONMENTAL SERVICES AND LOCAL BOARD OF HEALTH. 8. FINISH COVER OVER COMPONENTS IS NOT TO EXCEED 3' PER 310 CMR 15.000 UNLESS SHOWN PER PLAN. 9. ALL ABANDONED SEPTIC SYSTEM COMPONENTS TO BE PUMPED DRY AND FILLED WITH CLEAN SAND OR REMOVED AND REPLACED WITH CLEAN SAND. 10.ALL COMPONENTS TO BE PROVIDED WITH WATERTIGHT ACCESS PORTS WITHIN 6" OF FINISH GRADE. 11.ALL SEPTIC TANKS, DISTRIBUTION BOXES AND PIPING TO BE INSTALLED WATERTIGHT. 12.NO KNOWN WETLANDS OR WELLS WITHIN 150 FEET OF PROPOSED LEACHING. 13, THIS IS NOT A CERTIFIED PLOT PLAN AND UNDER NO CIRCUMSTANCES IS THIS PLAN TO BE USED FOR ZONING OR BUILDING PURPOSES. 14. LOT IS SHOWN AS ASSESSOR'S MAP 68 PARCEL 90. 15. LOCUS PROPERTY'S PROPOSED SYSTEM APPEARS TO BE WITHIN AN AQUIFER PROTECTION DISTRICT (ZONE II). 16. NO FOUNDATIONS WITHIN 20' OF PROPOSED SAS. NUMBER OFACTUAL BEDROOMS GARBAGE DISPOSAL UNIT TOTAL ESTIMATED FLOW (110 GALIBRIDAYX 4 BR) REQUIRED SEPTIC TANK CAPACITY SIZE OF SEPTIC TANK SOIL CLASSIFICATION DESIGN PERCOLATION RATE EFFL DENT LOADING RATE 4 NO 440 GAL./DAY 880 GAL. 1500 GAL. (PROPOSED) 1 < 2 MINANCH (ASSUMED) 0.74 GAL.IDAY/FT? LEACHING AREA (2) x (33.5' + 12.83)(2) = 185 SF 33.5' x 12.83' = 430 SF 615 SF x 0.74 = 455 GPD USE (3) 500 GALLON H-20 CHAMBERS WITH 4' STONE INA 12.83'X 33.5' CONFIGURATIONAS DIAGRAMMED RESERVE LEACHING CAPACITY SOIL EVALUATION TEST HOLE #1 Evaluator: DavidD. Flaherty Jr., RS SE #4755 BOH Witness: Jay Gardiner, RS Date: April 12, 2023 TH-1 ELEV. 19.0' 0" - 7" A LS 10YR 312 7" - 34" B LS 10YR 516 34" - 132" C MS 2.5Y 614 G.W. ELEV. N/A BOTTOMTH-1 ELEV. 6.0' N/A P. 0. Box 331 SYSTEM DETAIL Harwich, MA 02645 774.994,1166 (NTS) O.. O O 12.83' 3 3.5' SITE AND SEWAGE PLAN FOR B & B EXCAVATION, INC/ JAMES WELCH *>WITCHWOOD ROAD SOUTH YARMOUTH, MA REV DATE: 412312023 PAGE 2 OF 2 DATE: 411312023