HomeMy WebLinkAboutEngineered Plan - 2018KEY:
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EXISTING CONTOUR: - - - -
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PROPOSED CONTOUR:
SPOT ELEVATION: 25.5
EXISTING
PROPOSED SPOT ELEVATION: 25.5
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TEST HOLE: t�
3
UTILITY POLE: -p- -
FENCE LINE:
LOCUS
HYDRANT:.-6-
RETAINING WALL:
LOT 5 (19 4771 SF)
ASSESSORS MAP: 32 PARCEL: 53
PLAN BOOK: 275, PAGE: 1
MINIMUM BUILDING SETBACKS:
FRONT: 30' SIDE; 15' REAR: 20'
MAX BUILDING COVERAGE: 25%
BENCHMARK AT
MAG NAIL
ELEVATION = 100,56
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SEPTIC SYSTEM DESIGN
( FLOW ESTIMATE:
I` 4 BEDROOMS AT 110 GAL / DAY = 440 GAL / DAY
SEPTIC TANK:
440 GAL / DAY x 2 DAYS = 880 GAL
USE 1500 GALLON SEPTIC TANK
'LEACHING AREA:
USE 6 -125 GALLON CHAMBERS (6.1' x 3' x 12" EFF. DEPTH) WITH
4' OF STONE ALL AROUND (44.6' x I V x 12" DEEP)
SIDE AREA: (44.6' + 11') x 2 x 1 = 111 SF (0.74) = 82 GAL/DAY
BOTTOM AREA: 44.6' x 11' = 491 SF (0.74) = 363 GAL/DAY
CAPACITY = 445 GAL/DAY
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SEPTIC SYSTEM SECTION
FIRST FLOOR 2" PEASTONE OR FILTER FABRIC
101.75 COVERS WITHIN 6" 3/4" - 1 1/2" DOUBLE
OF FINISHED GRADE WASHED STONE
FOU FOUNDATION nOP OF '"
"`"° '` ` FINISHED G INSPECTION PORT
BADE ELEV.= 98.68
1 /4" per ft
98.75 1/8"per ft COVER
ELEV. ill
(1' MIN)
Q 8. 0 1/8" per ft
EL2u1/EV. 98.06
8. ELEV. ELEV. 5
(( D-BOX ELEV.
ELEV. 1500 GAL MECHANICALLY CALLY UNDER
4 ° ° H
(g SEPTIC TANK 44.6' x 11' ((qq
MECOHANIOCALLY COMPACTED) 91.85 6 -1WTTGALLON
4 OF STONE A LAROUNLC-6)
C 6) 5.25'
ELEV. (44.6' x 1 V x 12" DEEP)
TEE SIZES: GAS BAFFLE
INLET: 6" UP, 13" DOWN AT OUTLET TEE
OUTLET: 6" UP, 14" DOWN ADJUSTED GROUND WATER ELEVATION = 91.6 w�ry
44.6'
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T . . . . . . . . . . . . . . . • . .
LEACH AREA DETAIL
TH-1
TH-2
100.0
TEST HOLE LOGS
O/A HORIZON
ELEV
ELEV.
0!A HORIZON
ELEV.
ENGINEER: THOMAS McLELLAN, P.E.
LOAMY SAND
10YR 3/1
LOAMY SAND
10YR 311
7"
99.9
91,
99.3
WITNESS: AMY VON HONE, R.S.
B HORIZON
B HORIZON
DATE: 5-24-18
LOAMY SAND
LOAMY SAND
24"
10YR 5/8
98.5
30"
10YR 5/8
97.5
PERCOLATION RATE: < 2 MIN/IN
C HORIZON
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C HORIZON
FINE-MED SAND
FINE-MED SAND
2.5Y 7/4 PERK C AT 42"
2.5Y 7/4
USGS GROUND WATER ADJUSTMENT:
WELL: MIW-29, ZONE: B, ADJUSTMENT: 0.6'
11
OBSERVED
108"
OBSERVED
91.0ADJUSTED
GROUND WATER ELEV= 91.6
+91,0
20"
GROUND WATER0.5
120,11
GROUND WATER
1 90.0
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 = 1/8" & 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 T WITHOUT VARIANCE.
11. FIELD SURVEY PROVIDED BY TERRY A. WARNER, P.L.S., HARWICH, MA.
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
PURPOSE OF CONSTRUCTION OF A NEW SEPTIC SYSTEM AND DOES NOT NECESSARILY
REPRESENT A FULL DETAILED PROPERTY SURVEY.
13. D-BOX TO BE WATER TESTED TO ENSURE LEVELNESS ANCLEQUAL FLQW�/��t�G%G�Q.�
Yarmouth Health Department
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PROPOSED?C
4 BEDROOM
�SSru 11 '
DWELLING 26'
42' THOMAS J
PROPOSED DWELLING
SITE PLAN
LOCATION:
34 ANTHONY RD., W. YARMOUTH, MA
PREPARED FOR:
DAVENPORT BUILDING CO.
LTE: 9-12-18 SCALE: 1" = 20�,
BASS RIVER ENGINEERING
P E P.O. BOX 1163, EAST DENNIS, MA 02641
508-364-9048
M 18-23