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HomeMy WebLinkAboutEngineer Plan4 SEPTIC SYSTEM DESIGN SEPTIC SYSTEM SECTION NOTE: 8" INVERT INLET IS NOT THE CENTER INLET ON CHAMBER END. LOCUS LOT 71 (105 380ASF) ASSESSORS MAP: 32 PARCEL: 86 PLAN BOOK: 71, PAGE: 117 1 N w it valid for REPAIR OF SEPTIC SYSTEM Y, due to State and Local septic variances. d of Health review and approval is required for future adetitions/renovations/alterations to ee facilities and/or structures/dwelling. Yarmouth Health Department APPROVED 0�� Date FLOW ESTIMATE: 5 BEDROOMS AT 110 GAL / DAY = 550 GAL / DAY SEPTIC TANK: 550 GAL / DAY x 2 DAYS = 1150 GAL USE 1500 GALLON SEPTIC TANK LEACHING AREA: USE 40 INFILTRATOR QUICK 4 PLUS STANDARD CAPACITY CHAMBERS AS SHOWN (30' x 18' x 8" EFF DEPTH) SIDE AREA: NA (0.74) = NA GALIDAY BOTTOM AREA: 4' x 40 UNITS x 4.7 = 752 SF (0.74) = 556 GAUDAY CAPACITY = 556 GAUD" I LEACH AREA DETAIL I 1st FLOOR KITCHEN } BATH &� LAUNDRY BED ROOM ROOM �ry ° 101.2 L� 101.8 X S 7,S p, a, r� I56 Sp N ,,rod f r------------------ C?.i n SANDBOX -10 1-8 L------------------- 12" pine . 102 PAVED DRIVE 102 v (; 1 i LP 1 elevation into cedar i existing septic W tank = 99.3 r ' \ST (4" pvc) EXISTING `a r- DWELNGM L top fnd.=103.46 DECK GARAGE 1 `v` KEY: EXISTING CONTOUR: - - - - PROPOSED CONTOUR: ............. I EXISTING SPOT ELEVATION: 25.5 PROPOSED SPOT ELEVATION: 25.5 TEST HOLE: * UTILITY POLE: -O- FENCE LINE: - HYDRANT:. RETAINING WALL: M20-06 Invert=101.46 / 102 LIVING ROOM BENCHMARK AT SURVEYOR'S NAIL ELEVATION = 101.87 ON� BED ROOM 103.46 TOP OF FOUNDA 101.46 ELEV. (EXISTING) 10 EL c 2nd FLOOR x U 2 DECK ABOVE [BATH 4&t91► el;meZ*17J�1N 100 m NN 936° \ 6,Te 9 I w E o �C y 4 a� \` ILLI 100 pr r e I 6" T MAX. COVER (1' MIN) 1/8" per ft- TEE SIZES: \-GAS BAFFLE INLET: 6" UP, 13" DOWN AT OUTLET TEE OUTLET: 6" UP, 14" DOWN ✓ (6" OF STONE UNDER OR MMECHANICALLY COMPACTED) TEST HOLE LOGS BED ENGINEER: THOMAS MCLELLAN, P.E. ROOM WITNESS: MALLORY LANGLER, R.S. DATE: 3-5-20 PERCOLATION RATE: <2 MIN/IN BED I I USGS GROUND WATER ADJUSTMENT: ROOM WELL: MIW-29, ZONE: B, ADJ.: 0.9' ADJUSTED GROUND WATER ELEV.= 95.4 INSPECTION PORT i- ELEV.= 100.4 00.07 II I I°I I°I I°I I°I I°I N 1.1 I'11.1 I•I I.1 I•I 1.1 1.11.1111 99.4 :LEV. ELEV. E 30' x 18' USE 40 INFILTRATOR QUICK 4 PLUS 4' STANDARD CAPACITY CHAMBERS AS SHOWN (30' x 18' x 8" EFF. DEPTH) ADJUSTED GROUNDWATER ELEVATION = 95.4 w�tiv 108" TH-1 101.5 FILL ELEV. O/A HORIZON LOAMY SAND 10YR 3/3 100.0 B HORIZON LOAMY SAND 1 OYR 5/8 99,2 C HORIZON MEDIUM SAND 2.5Y 7/4 PERC AT 48" NOTES: 1. VERTICAL DATUM: ASSUMED 2. MUNICAPAL WATER IS AVAILABLE. 3. SCHEDULE 40 - 4" PVC PIPE TO BE USED THROUGHOUT SEPTIC SYSTEM. 4. ALL PRECAST UNITS SUBJECT TO TRAFFIC LOADS TO CONFORM WITH AASHTO H-20 SPECIFICATIONS. 5. PIPE PITCH = 1/4" PER FOOT (UNLESS NOTED OTHERWISE). 6. FIRST 2' OF PIPE OUT OF D-BOX TO BE SET LEVEL, 7. THE SEPTIC SYSTEM HAS NOT BEEN DESIGNED TO ACCOMODATE THE USE OF A GARBAGE DISPOSAL. 8. ALL CONSTRUCTION DETAILS ARE TO BE IN CONFORMANCE WITH THE STATE OF MASS. ENVIRONMENTAL CODE (TITLE FIVE) AND LOCAL HEALTH REGULATIONS. 0 9. CONTRACTOR TO VERIFY LOCATIONS OF ALL UTILITIES PRIOR TO CONSTRUCTION. Q 10. GROUND COVER OVER ALL SEPTIC SYSTEM COMPONENTS NOT TO EXCEED 3' WITHOUT VARIANCE. 0 11. FIELD SURVEY PROVIDED BY TERRY A. WARNER, P.L.S., HARWICH, MA. ir 12, THIS PLAN REQUIRES THE REVIEW AND APPROVAL OF ONE OR MORE TOWN DEPARTMENTS AND IS SUBJECT TO CHANGE UNTIL SUCH TIME, THIS PLAN HAS BEEN PREPARED FOR THE SOLE O PURPOSE OF CONSTRUCTION OF A NEW SEPTIC SYSTEM AND DOES NOT NECESSARILY REPRESENT A FULL DETAILED PROPERTY SURVEY. F" 13. EXISTING SEPTIC TANK AND LEACH PIT ARE TO BE PUMPED AND FILLED WITH SAND OR REMOVED. .J 14. D-BOX TO BE WATER TESTED TO ENSURE LEVELNESS AND EQUAL FLOW. W 15. ALL UNSUITABLE SOIL (A & B HORIZONS, APPROX. 27" DEEP) WITHIN V OF PRO OSED LEACH AREA IS TO BE REMOVED AND REPLACED WITH CLEAN MEDIUM SAND. GLy:rsUC!=J Irv" SN O F I.+ a� APR 16 2020 TERRY o AMN �r WARNER N �' SITE PL No.38721 r REQUIRED VARIANCE FROM TITLE FIVE: 1. SECTION 15.212: LEACH AREA TO BE LESS THAN V ABOVE GROUND WATER (VARIANCE OF 1.0'). 2. SECTION 15,211 (1): LEACH AREA TO BE LESS THAN 20' FROM CELLAR WALL, (VARIANCE OF 5'). 3. SECTION 15.211 (1): LEACH AREA TO BE LESS THAN 1O' FROM LOT LINES, (VARIANCE OF 4'). X 100.5 4. SECTION 15.211 (1): LEACH AREA TO BE LESS THAN 1O' FROM GARAGE, (VARIANCE OF 2'). re "ty� Of 'k THOMAS J. - ' i ip h'.uLELLAN CIVIL ern No.35471 / J LOCATION: 19 ELTON RD., W. YARMOUTH, MA PREPARED FOR: JACK & ANN MERCK DATE: 3-18-20 (REVISED: 3-30-20) SCALE: 1" = 20' BASS RIVER ENGINEERING p E P.O. BOX 1163, EAST DENNIS, MA 02641 508-364-9048