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HomeMy WebLinkAboutEngineer Plan0 �- LOCUS R ��5 ROUTE 28 LOCATION MAP LOT 88 25,491 ± S.F. (0.59 ± AC.) 19- 20 v ASSESSORS MAP: 31 PARCEL: 132 FLOOD ZONE: C BENCHMARK TOP OF CONCRETE BOUND ELEV= 18.43' AfA1,V STR .�'RT - ROB T�& 'e8 KEY: EXISTING CONTOUR: PROPOSED CONTOUR: EXISTING SPOT ELEVATION: 25.5 PROPOSED SPOT ELEVATION: 25 TEST HOLE: 4- UTILITY POLE: -{}- FENCE LINE: - HYDRANT: -6 RETAINING WALL: DM # 98-1991D1F3©� TEST DOLE LOGS �1 ENGINEER: THOMAS McLELLAN, P.E. j WITNESS: AMY VON HONE, R.S. DATE: _ 3-24-99 PERCOLATION RATE: < 2 MIN/IN 2- 500 GALLON CHAMBERS WITH Z OF STONE AROUND SIDES 4' AT ENDS AND 5' BETWEEN (30' x 8.8' x 2' DEEP) (H-20) o'4 1y DM T H-1 21D A HORIZON ELEV. LOAMY SAND 10" lOYR 312 202 B HORIZON LOAMY SAND 36" fOYR 518 18D C HORIZON FINE SAND 2.5Y 616 126" 1 1 10.5 NO GROUND HATER ENCOUNTERED T H-2 SEPTIC SYSTEM DESIGN FLOW ESTIMATE: 2350 SF OFFICE/RETAIL BUILDING 2350 x 75 GAL/DAY/1000 SF = 176 GAL/DAY 200 GAL/DAY MINIMUM DESIGN SEPTIC TANK: 200 GAL/DAY x 2 DAYS = 400 GAL USE 1000 GALLON SEPTIC TANK (EXISTING) LEACHING AREA: NOTES: 1. VERTICAL DATUM: ASSUMED FROM QUAD (NGVD +/-) 2. MUNICAPAL WATER IS AVAILABLE. 3. SCHEDULE 40 - 4" PVC PIPE TO BE USED THROUGHOUT SEPTIC SYSTEM. 4. ALL PRECAST UNITS TO CONFORM WITH AASHTO H-20 LOADING 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. 9. CONTRACTOR TO VERIFY LOCATIONS OF ALL UTILITIES PRIOR TO CONSTRUCTION. 10. GROUND COVER OVER ALL SEPTIC SYSTEM COMPONENTS NOT TO EXCEED 3.0. 11. D-BOX TO BE WATER TESTED TO ENSURE LEVELNESS AND EQUAL FLOW. 12. EXISTING LEACH "PIT TO BE PUMPED AND FILLED WITH SAND OR REMOVED. 13. IF UNSUITABLE SOIL IS ENCOUNTERED (B HORIZON) IT IS TO BE REMOVED WITHIN 5' OF PROPOSED LEACH AREA AND REPLACED WITH CLEAN MEDIUM SAND. USE 2- 500 GALLON CHAMBERS WITH 2' OF STONE AROUND SIDES 4' AT ENDS AND 3' BETWEEN (30' x 8.8' x 2' DEEP) SIDE AREA.- (30 + 8.8)2 x 2 = 155 (.74) = 115 GAL/DAY BC'rTOM AREA: 3G' x 8.8' = 264 SF (74) = 195 GAL%LAY CAPACITY = 310 GALI DAY SETT I C SYSTEM SECTION_ 23.1 FIRST FLOOR CAST IRON COVERS TO GRADE (5) 18.32 ELEV. \1� 18.07 18.57 1000 GAL D-BOX ELEV. ELEV. SEPTIC TANK 18.24 (6" OF (EXISTING) (EXISTING) ELEV. STONE UNDER) 17.5 TEE SIZES: (TO BE CONFIRMED) _._ INLET. 6" UP, 13" DOWN CAS BAFFLE _ � ELEV AT OUTLET TEE E OUTLET: 6" UP, 14" DOWN i n mill DEMARZST-McLELLAN ENGINEERING 24 SCHOOL STREET P.O. BOX 463 HEST DENNIS, MASSACHUSETTS 02670 PHONE & FAX : (508) 398-7710 2" PEASTONE 314"-11/2" WASHED STONE /- ELEV.= 18.33 lk 1.1 ®F.1 A 15.5 H re ; ELEV. 2'-4' 2'-4' 30' 2- 500 GALLON CHAMBERS WITH 2' OF STONE AROUND SIDES 4' AT ENDS AND 5' BETWEEN (30' x 8.8' x 2' DEEP) (H-20) w �o o SITE AND SEWAGE PLAN AP I ROVED BY: DATE: s"OF"' , JOHMN ,. z � Nj- CWK. . U DEMWEST, JR. No. 3W9 o Ess\° THOMAS McLELLAN, P.E.11 JOHN Z. DEMAREST JR., P.L.S. L 0CA TION: 582 MAIN STREET WEST YARMOUTH, MA A. & B. CANCO/BANK BOSTON SCALE: 1" = 30' DATE: 417199 REFERENCE: PLAN BOOK 91 PAGE 41