HomeMy WebLinkAbout14 Wisteria Road Site and Sewage Plan (2)ROUTE 28 Ii ASSESSORS MAP: 22 PARCEL: 190 �'ES� OTL.E LOGS
J I
LOCUS - Ci1P.RF.NT ZONING: R-25 ENGINE THOMAS McLELLAN, P.E.-
Q-
.E.
�� I� WITNESS: DAVID FLAHERTY. R.S.
II MINIMUM BUILDING SETBACKS: � - -
FRONT: 30' SIDE; 15' REAR: 20' DATE. 4-28-04
PERCOLATION RATE: < 2 MIN / INCH
ALLOWABLE BUILDING COVERAGE: 25 % --
TH-1 12.0 TH-2 11.5
2197 SF ! 8,800 SF = 24.9 %
ELEV. ELEV.
OA HORIZON 0/A HORIZON
LOAMY SAND LOAMY SAND
�9 2L FLOOD ZONE: B 9„ IOYR 312 1 11.2 10" IOYR 3/2 10.7
- B HORIZON B HORIZON
LOCATION MAP LOAMY SAND j LOAMY SAND
l0YR 5/8 IOYR 5/8
LOT 4 (8,800 SF) 33" -�_ 9.2 34" 8.7
C HORIZON C HORIZON
MEDIUM SAND MEDIUM SAND
2.5Y 7/42.5Y 7/4 ,
111" j 2.7 104° �.8
tJ .`
OBSERVED OBSERVED
120" GROUND WATER 2.0 120" 1 GROUND WATER 1.5
T---- -T
USGS GROU' D WATER ADJUSTMENT:
WELL 1,411,V-29, ZONE B, ADJUSTMENT 2.1'
"ZONE A ADJUSTMENT: 1.4'
ADJUSTED GROUND WATER ELEVATION = 4.2
SEPTIC SYS'T'EM DESIGN
BENCHMARK AT
HYDRANT TAG BOLT
#2004 ELEV= 12.42'
9.8 11
In
Off,\
12
40 MIT. POLY LINER
60'x 2' DEEP
TOP OF LINER = 10.8
KEY:
EXISTING COti POUR: - -
PROPOSED CONTOUR: ......................
EXISTING SPOT ELEVATION: 25.5
PROPOSED SPOT ELEVATION: 25.5
TEST HOLE: AV
UTILITY POLE: o --
FENCE LINE: - - -
HYDRANT: -{}-
RETAIINING WALL:
DM# C14-20
•Ci,
\!DXISTING
{ lrr \ DWELLING
10.3
FDCF OF DRIVF.
10.2
NOTES:
1. VERTICAL DATUM: ASSUMED FROM QUAD (NGVD +l-)
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 W rII
AASHTO H-20 LOADING SPECIFICATIONS.
5. PIPE PITCH = 114" PER FOOT (UNLFSS NOTED OTHERWISE).
6. FIRST TOFF 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 DE'T'AILS 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 31.
11. D -BOX TO BE WATER TESTED TO ENSURE LEVELNESS AND EQUAL FLOW.
12. ALL UNSUITABLE SOIL (B HORIXON, APPROX. 34" DEEP) WITHIN 5' OF
PROPOSED LEACH AREA IS TO BE REMOVED AND REPLACED WITH
CLEAN MEDIUM SAND.
FLOW ESTIMATE:
3 BL-DROOMS AT 110 GAL / DAY = 330 GAL / DAY
SEPI'I(' TANK:
330 _ GAL /DAY x 2 DAYS = 660 GAI.
EXISTING SHED USE 1500 GAT LON SEPTIC TANK
TO BE REMOVED
LEACHTN+_AR A__
USI 3 FLO`7v'DIFFUSORS WITH 4' OF STONE AROUND
_S.DF S AND 3.5' AT ENDS_ (31'x 12'x i' DEEP)---._-�-
EXISTING GAZEBO IDz Al .A. 3 i 12'? x 2 x 1 � Rf St' (0 41 = 64 GAL/DAY
��-
T01 -i: REMOVED - -
110T\i ---
T0ARFA: 31' x 12' = 372 SF (0,74) =I'll GAL/DAY
CAPACITY = I"
WGAL/DAY
(RESERVE AREA: 4 FLODIFFUSORS WITH 3' OF STONE AROUND
"12
SIDES AND TAT ENDS, CAPACITY = 334 GAL/DAY)
SEPTIC SYSTEM SECTION
M
51'
PORCH
27' 20'
PROPOSED
i 3BEDROOM
DWELLBv`G
LI, 7'
IT
22' j 1 I Lr?r
13.0'
GARAGE
24'
PROPOSED DWELLING
2" PFASTONE
12'
COVERS WITHIN 12" OF /
14.3 FINISED GRADE 3/4" - 1 112"
TOP OF FOUNDATION (ONE INSPECTION COVER WASHED STONE
TO BE WITHIN 6" OF GRADE) /
31' MAX.
COVER
VER
1 (1' MIN)
ELEV.= 10.78
I1� 10.77 1 {�
ELEV. I 10.71 �� e
ELEV . 10.54
J 11.02 1500 GAD-BOX L ELEV. ELEV 9.28
ELEV. SEPTIC TANK E� ELEV.
(6" OF STONE UNDER" 10.28 < 3 - 4
ELEV. E 31'
(6" OF STONE UNDER OR USE 3 FLOWDIFFUSORS WITH 4' OF STONE
MECHANICALLY COMPACTED) AROUND SIDES AND 3.5' AT ENDS
TEE SIZES: AT TLTEE (31' x 12' x 1' DEEP) W
INLET: 6" UP, 13" DOWN ZONE A ADJUSTED GROUND WATER ELEVATION = 4.2
OUTLET: 6" UP, 14" DOWN -
i
SITE AND SEWAGE PI_.AN
DEMAREST - McLELLAN ENGINE: ;I";(1
24 SCHOOL STREET, P.O. BOX 46'
WEST DENNIS, MA 02670
PHONE & FAX: (508) 398-7710
APPROVED BY:
z'
THOMAS McLELLAN, P.E.
DATE:
LOCATION:
14 WISTERIA ROAD
I WEST YARMOUTH, MA
JOHN\,
Z -
a DEMAPEST JR A
4 No 3sF6y� PREPARED FOR
°l, OMAN CONSTRUCTION
ass u
SCALE: 1" = 20' DATE: 6-10-04
REFERENCE' LAND COURT CASE 11435
Z. I REVISED: 8-30-04 (ADJUST ELEVATIOI