HomeMy WebLinkAboutEngineered Plan - Rev. 2019- NKEY:
EXISTING CONTOUR: - - - -
4
PROPOSED CONTOUR: .............
EXISTING SPOT ELEVATION: 25.5
PROPOSED SPOT ELEVATION: 25.5TEST
HOLE: -t'�-
R0�6UTILITY
kKNO
POLE:FENCE
WHITES PATH
LINE:
HYDRANT:
RETAINING WALL:
L LOCUS II
LOCATION MAP
LOTS 3 & 4 (65,844 SF)
ASSESSORS MAP: 110 PARCEL:9
PLAN BOOK: 669, PAGE: 13
M19-29
BENCHMARK AT
SURVEYORS NAIL
ELEVATION = 100.0
100
EO
LEACH AREA DETAIL
WHITE'S PATH
SEPTIC SYSTEM DESIGN
FLOW ESTIMATE:
2,520 SF OFFICE x 75 GAL/DAY/1000 SF =189 GAL / DAY
SEPTIC TANK:
189 GAL / DAY x 2 DAYS = 378 GAL
USE 1500 GALLON SEPTIC TANK (2 COMPARTMENT TANK)
LEACHING AREA:
USE 3 - 500 GALLON CHAMBERS (8.5'x 4.8'x 2' EFF. DEPTH) WITH
4' OF STONE ALL AROUND (33.5'x 12.8'x 2' DEEP)
SIDE AREA: (33.5' + 12.8') x 2 x 2 = 185 SF (0.74) = 137 GAL/DAY
BOTTOM AREA: 33,5'x 12.8'= 429 SF (0.74) = 317 GAL/DAY
CAPACITY= 454 GAL/DAY
I = 101.52 �`LR&,O
NPR�FORO
SEPTIC SYSTEM SECTION
HDCI COVERS TO GRADE
99.4
TOP OF
CONC. SLAB
1/4" per ft 99,48
98.4 1/4" per ft
ELEV.
H-20
98.15 500
ELEV,
1000 GAL GAL
1500 GAL
2 COMPARTMENT SEPTIC TANK
((6" OF STONE UNDER OR
WIECHANICALLY COMPACTED)
TEE SIZES:
INLET: 6" UP, 13" DOWN
OUTLET: 6" UP, 14" DOWN
.:j i!tf{xj�kY
tj
0 Date
1/4" per It
X1.1
ELEV.
97.53
ELEV. D -BOX ELEV.
(6" OF STONE UNDER OR
\ MECHANICA(LH 20 COMPACTED)
ELEV.
`GAS BAFFLE
AT OUTLET TEE
TEST HOLE LOGS
ENGINEER: THOMAS MCLELLAN, P.E.
WITNESS: AMY VON HONE, R.S.
DATE: 7-10-19
PERCOLATION RATE: < 2 MIN/IN
2" PEASTONE OR FILTER FABRIC
- 3/4" - 1 1/2" DOUBLE
WASHED STONE
-INSPECTION PORT (HDCI COVER)
r- ELEV.= 98.07
wal .1 ° ° ° ° ° I'll 95.07
4 <-> ELEV,
33.5'x12.8' 311
3 - 500 GALLON CHAMBERS WITH
4' OF STONE ALL AROUND
33.5' x 12.8'x 2' DEEP
( -20) (TO BE VENTE )
TH-1 102.0
FILL ELEV.
101.0
B HORIZON
LOAMY SAND
10YR 5/8 100.0
C HORIZON
MEDIUM SAND
2.5Y 7/4 PERC AT 48"
NO GROUND WATER ENCOUNTERED
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 T OF PIPE OUT OF D -BOX TO BE SET LEVEL,
7. THE SEPTIC SYSTEM HAS NOT BEEN DESIGNED TO ACCOMODATE THE USE OFA 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.
14. D -BOX TO BE WATER TESTED TO ENSURE LEVELNESS AND EQUAL FLOW.
15. THIS SEPTIC SYSTEM DESIGN REQUIRES A VARIANCE FROM TITLE FIVE SECTION 15.221 (7):
PROPOSED SEPTIC SYSTEM TO BE GREATER THAN T BELOW GRADE, (VARIANCE OF 3" - 21").
799 D
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ANN
i. ARNE€�-
NQ. 38721
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THOMASJ.
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THOMAS J.
SITE PLAN
LOCATION:
363 WHITES PATH, S. YARMOUTH,'MA
PREPARED FOR:
ROBERT B. OUR CO., INC.
DATE: 7-11-19 SCALE: 1" = 40'
REVISED: 7-15-19 & 7-26-19 (2 COMPARTMENT TANK)
BASS RIVER ENGINEERING
P E P.O. BOX 1163, EAST DENNIS, MA 02641
508-364-9048
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