HomeMy WebLinkAbout114 Springer Lane - Septic System Design9' MINIMUM.
///_3' MAXIMUM COVER
MIN 2' OF PEASTONE
3/4' - I I/2' DIA.
__�DOUBLE WASHED STONE
w, �J.O
r BAFF'E-
3 OUTLET 6 STANDARD INFILTRATOR
D -BOX CHAMBERS W/4't STONE AROUND
1500 GAL I 1 ' • x 50 ' 1 x 7'd
SEPTIC TANK 6' CRUSHED STONE OR
COMPACTED BASE
PROFI LE:NOT TO SCALE
INVERT ELEVATIONS:
TP •l
TEXTURE
DESIGN CRITERIA:
INVERT AT BUILDING:
99.9
DESIGN FLOW:
INVERT 1N SEPTIC TANK:
99.15
4 BEDROOMS AT 110 G.P.D. PER
INVERT OUT SEPTIC TANK:
98.9
BEDROOM EQUALS 440 G.P.D.
INVERT IN DIST. BOX:
98.77
98.6
NO GARBAGE GRINDER
INVERT OUT DIST. BOX:
INVERT IN LEACH CHAMBER:
98.56
SEPTIC TANK REOUIRED:,
BOTTOM OF LEACH CHAMBER:
98.0
440 G.P.D. X 200x - 860 GAL.
ADJUSTED GROUND WATER:
93.0
SEPTIC TANK PROVIDED: 1500 GAL. MIN.
OBSERVED GROUND WATER:
91.1
BOTTOM OF TEST HOLE *1:
89.6
SOIL ABSORPTION SYSTEM REQUIRED.-
EQUIRED.INDEX
INDEXWELL MIW 29. ZONE B
DESIGN PERC RATE f 5 MIN/INCH
DEC 04 READING -8.6% ADJ-2.9'
SOIL TEXTURAL CLASS - I
USE A 7.9' ADJUSTMENT FOR
DESIGN
EFFLUENT LOADING RATE - 0.74 GPD/SF
440 GPD / 0.74 GPD/SF - 595 S.F. REQUIRED
PROVIDED: 6 STANDARD INFILTRATOR
T
CHAMBERS W/4's STONE AROUND, A-621 S.F.
1 V
621 S.F. x 0.74 - 459 GPD
SOIL TEST PIT DA TA e
INDICATES V INDICATES
PERCOLATION = OBSERVED
TEST _ GROUNDWATER
HORIZON
TP •l
TEXTURE
COLOR
0'
A
LOAMY
IOYR.
SAND
3/2
5'
......................
................
B
LOAMY
IOYR
SAND...........
4/6...
22'
.
C
MEDIUM
I0YR
SAND
6/4
44'
3m
99.2
GENERAL NOTES;
1. THIS PLAN IS FOR THE DESIGN AND CONSTRUCTION
OF THE SEWAGE DISPOSAL SYSTEM ONLY.
2. VERTICAL DATUM IS ASSUMED. FOR BENCH MARKS
SET, SEE SITE PLAN.
3. ALL CONSTRUCTION METHODS AND MATERIALS AND
MAINTENANCE OF THE SEPTIC SYSTEM SHALL
CONFORM TO MASS. D.E.P. TITLE 5 AND LOCAL
BOARD OF HEALTH REGULATIONS.'
4. ALL SEPTIC SYSTEM COMPONENTS LOCATED UNDER
AREAS SUBJECT TO VEHICULAR TRAFFIC OR GREATER
THAN 3' IN DEPTH SHALL BE CAPABLE OF WITH-
STANDING H-20 WHEEL LOADS.
5. ALL SEWER PIPE SHALL BE SCHEDULE 40 OR
APPROVED EQUAL,
6. SEPTIC TANK AND 0 -BOX SHALL BE REINFORCED
PRECAST CONCRETE AND WATERTIGHT. D -BOX SHALL
BE WATER TESTED TO CHECK FOR LEVEL WHEN THERE
IS MORE THAN ONE OUTLET.
7. BEFORE CONSTRUCTION CALL 'DIG -SAFE'.
1 -888 -DIG -SAFE AND THE LOCAL WATER DEPT.
FOR LOCATION OF UNDERGROUND UTILITIES.
8. EXISTING CESSPOOLS TO BE PUMPED DRY. REMOVED
IN THE AREA OF THE NEW SYSTEM AND BACKFILLED
WITH CLEAN SAND.
97.8 9, EXISTING INVERT AT THE DWELLING TO BE RELOCATE
120'1 1 89.6
DATE: DECEMBER 8. 2004
TEST BY: STEPHEN HAAS -
WITNESSED BY: DAVID FLAHERTY
PERC RATE: ( 2 MIN/INCH
a
TO TH£wLOCATION AND ELEVATION SHOWN.
10. ALL UNSUITABLE MATERIAL JA 4 8 HORIZONS)
ENCOUNTERED BELOW THE INVERT OF THE LEACHING
FACILITY TO BE REMOVED FOR A DISTANCE OF 5'
AROUND AND REPLACED WITH SAND IN ACCORDANCE
WITH TITLE 5.
Il. NO DETERMINATION HAS BEEN MADE AS TO
COMPLIANCE WITH DEED RESTRICTIONS OR ZONING
REGULATIONS. IT SHALL REMAIN THE CLIENTS
RESPONSIBILITY TO OBTAIN ALL PERMITS. SPECIAL
PERMITS, VARIANCES ETC. FOR THIS PROJECT.
12. IT SHALL REMAIN THE CLIENT'S RESPONSIBILITY
TO HAVE THE PROPOSED BUILDING FOUNDATION
DESIGNED TO ACCOUNT FOR THE EXISTING GRADE
AND SOIL CONDITIONS AT THE LOCATION OF THE
PROPOSED BUILDING.