HomeMy WebLinkAboutEngineer Plan34'
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LEACH AREA DETAIL
(LOW PROFILE FLOWDIFFUSORS)
LN
LOCATION MAP
LOT 111 (10,258 SF)
ASSESSORS MAP:34 PARCEL:29
LAND COURT CASE 14113
40 MIL POLY LINER
124' x T DEEP
TOP OF LINER = 103.3
BOTTOM ELEVATION =100.3
LOW AREA TO RETAIN
STORM WATER RUN-OFF
102
i
101
i
KEY:
EXISTING CONTOUR: - - - -
PROPOSED CONTOUR: -------------
EXISTING SPOT ELEVATION: 25.5
PROPOSED SPOT ELEVATION: 5.5
TEST HOLE: _+
UTILITY POLE: -�
FENCE LINE: -
HYDRANT:
RETAINING WALL:
M21-36
SEPTIC SYSTEM DESIGN
FLOW ESTIMATE:
3 BEDROOMS AT 110 GAL / DAY = 330 GAL / DAY
SEPTIC TANK:
330 GAL / DAY x 2 DAYS = 660 GAL
USE 1500 GALLON SEPTIC TANK
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LEACHING AREA:
USE 4 LOW PROFILE FLOWDIFFUSORS WITH 4' OF STONE AROUND
SIDES AND VAT ENDS 34' x 12' x 6" EFF. DEPTH)
SIDE AREA: (34' + 12') x 2 x 6/12 = 46 SF (0.74) = 34 GAL/DAY
BOTTOM AREA: 34' x 12' = 408 SF (0.74) = 302 GAL/DAY
CAPACITY = 336 GAL/DAY
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BENCHMARK AT
SURVEYOR'S NAIL
ELEVATION =101.83
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SEPTIC SYSTEM SECTION A QUICPRESSURE
DISCONNECT IS O BE IT PROVIDGH E FOR ER OR TANK.
FUTURE ACCESS TO PUMP. 2" PEASTONE OR FILTER FABRIC
103.71 PUMP CHAMBER COVER TO BE AT GRADE. 314" -1 1/2" DOUBLE
ALL OTHER COVERS TO BE WITHIN 6" OF GRADE. WASHED STONE
TOP OF INSPECTION PORT TO BE WITHIN W OF GRADE INSPECTION PORT
FOUNDATION
ELEV: 103.3
TEE AT " 104
3' MAX.
1/4" per ft 101.92 1/8" per ft INLET �� COVER
ELEV. (1' MIN)
A 100.5 103.3
100.75 ELEV. 00.46 103.16 y�0
ELEV. ELEV. 102.8 102.3
ELEV. ELEV. ELEV. "
a D-BOX H 1 � ELEV.
2 1500 GAL 95.96 1000 GAL (6" OF STONE UNDER)
ELEV. SEPTIC TANK GAS ELEV. PUMP CHAMBER 34' x 12' -3 100.3
Z
STING PPE BAFFLE 4 LOW PROFILE FLOWDIFFUSORS
((6" OF STONE UNDER OR & WITH MYERS SRM-4 PUMP. PUMP ALARM 1/4" DRAIN HOLE
ELEV.=101.21 MECHANICALLY COMPACTED) ZABEL PACKAGE TO BE INSTALLED IN DWELLING WITH 4' OF STONE AROUND SIDES 5'
TEE SIZES: FILTER POWERED BY A CIRCUIT SEPARATE FROM CHECK AND VAT ENDS
INLET: 6" UP,13" DOWN THE PUMP POWER. (DISTANCE BETWEEN VALVE (34' x 12' x 6" EFF. DEPTH)
OUTLET: 6" UP, 14" DOWN ON/OFF SWITCH TO E 41
(DISTANCE BETWEEN ON SWITCH ADJUSTED GROUND WATER ELEVATION = 97.3�
AND ALARM TO BE 12")
TH-1 101.7
TEST HOLE LOGS O/AHORIZON ELEV.
LAUNDRY DINING ENGINEER: THOMAS McLELLAN, P.E. OAMg• 10YR Y SAND 101.0
FAMILY AREA = WITNESS: PHIL RENAUD
ROOM � B HORIZON
m BED O DATE: 9-22-21 LOAMY SAND
ROOM a
PERCOLATION RATE: < 2 MIN/IN24" 10YR 5/8 99.7
BATH KITCHEN C HORIZON
MEDIUM SAND
2.5Y 7/4 PE�RC AT 42"
s USGS GROUND WATER ADJUSTMENT:
DECK WELL: MIW-29, ZONE: A, ADJUSTMENT: 2.1' 78" OBSERVED 95.2
ADJUSTED GROUND WATER ELEV.= 97.3 120-1 GROUNDWATER 1 91.7
EXISTING FLOOR PLAN
REMOVE T OF
EXISTING DWELLING
18'
2.5'
_
NEW
LAUNDR
-BED
�Y FAMILY AADIN
-ROOM
z
! ROOM ,
BED
m
D
QROOM
n
aBATH
KITCHEN
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NEW
BED
NEW
ROOM
DECK DK.
18,
EXISTING AND PROPOSED FLOOR PLAN I
BUOYANCY CALCULATION :1500 GALLON SEPTIC TANK
10.5' x 5.6T x (97.3 - 96.25) x 62.4 LB/CF = 3,901 LB
WEIGHT OF TANK = 11,480 LB
BUOYANCY CALCULATION: 1000 GALLON PUMP CHAMBER
8.5' x 4.83' x (97.3 - 95.96) x 62.4 LB/CF = 4,978 LB
WEIGHT OF TANK = 8,240 LB
NOTE:
DESIGN ENGINEER TO INSPECT AND CERTIFY CONSTRUCTION OF
PROPOSED SEPTIC SYSTEM. CERTIFICATION TO INCLUDE INSPECTION
OF FINAL GRADING SO AS TO PREVENT STORM WATER RUN-OFF TO
FLOW TOWARDS ABUTTING PROPERTIES.
EXISTING GRADE
AT LOT LINE =101.3
PROPOSED
GRADES
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.
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. EXISTING CESS POOLS ARE TO BE PUMPED AND REMOVED.
14. D-BOX TO BE WATER TESTED TO ENSURE LEVELNESS AND EQUAL FLOW.
15. AN ELECTRIC PERMIT FOR THE PUMP PACKAGE IS TO BE OBTAINED PRIOR TO CONSTRUCTION.
16. SEPTIC TANK AND PUMP CHAMBER ARE TO BE WATER PROOFED BY MANUFACTURER WITH
IPANEX CONCRETE ADDITIVE OR CONSEAL 55. A 6" EZ WRAP IS ALSO REQUIRED FOR BOTH TANKS.
17. ALL UNSUITABLE SOIL, (A & B HORIZON, APPROX. 2' DEEP) WITHIN 5' OF PROPOSED LEACH AREA IS
TO BE REMOVED AND REPLACED WITH CLEAN MEDIUM SAND.
-) SITE PLAN
THO':.43 J. tiN
R"aLELLAN
C.? CIVIL y
No. 30471
T�O
DRAINAGE I,(�
SWALE DETAIL
THOMAS J. McLELLAN, P.E.
/ LOCATION:
9 MMLARD RD., S. YARMOUTH, MA
PREPARED FOR:
DON & KATHY MOMSON
DATE: 10-21-21 SCALE: V = 20'
REVISED: 11-11-21(DRAINAGE SWALE DETAIL)
BASS RIVER ENGINEERING
P.O. BOX 1163, EAST DENNIS, MA 02641
508-364-9048
�. V' 413)
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Data
L. anw
DEC 2 0 2021
HEALTH DIE PT