36_-275B 88 Maple Ridge Rd- plan0 LOT 13
_W
D
— G
aFc
CIhN
LOT 29
LOT 11
-- S I- T E — P- - L A N -----
SCALE: 1" = 20'
DESIGN DATA
SEPTIC TANK:
DESIGN FOR GARBAGE GRINDER (CITY REG.)
5 BEDROOM(110 GAL/BDRM) (2) 1100 GAL
USE 1500 GAL SEPTIC TANK
LEACHING TRENCH
' USE 4 MIN./IN. FOR DESIGN
DESIGN FLOW: 5 BDRM(110 GAL/BDRM) + 50% LEACHING AREA INCREASE {
SIDEWALL RATE: 2.00 GAL/SF
BOTTOM RATE: 0.83 GAL/SF
LEACHING PER FOOT OF TRENCH:
SIDEWALL: 2)(0.75 1 LF.)(2.00 GALS = 3.00 GAL/LF
BOTTOM: (3 )(1 LF.)_0.83 GAL/SF) = 2.49 GAL/LF
TOTAL PER FOOT LEACHING = 5.49 GAL/LF
LEACH AREA PER FOOT OF TRENCH = 4.5 S.F
550 GAL(4.5 SF/5.49 GALx1.5) = 676 S.F.
USE 3 TRENCHES -- 50' LONG -- 3' INDE — 0.75' DEEP
SIDEWALL:
3 TRENCHES [(2)(0.75'}{50'}(2.00 GAL/SF) + (0s75)(3 }(2.00 GAL/)� GAL
{BOTTOM:
3 TRENCHES (50'x(0.83 GALS 373.80 CAL-
-� £}
TOTAL LEACHING 463.50 + 373.50 ='837 GAL - > : l_
'TOTAL AREA 231.75 + 450 = 681.75 SF
} PERCOLATION TEST DATA
TEST PIT 30—A TEST PIT 30-9 TEST PIT 28 DATE: 6-25-92
ELEV. = 287.20 ELEV. = 287.07 ELEV. = 283.88 ENGINEER: N K A CONSULTANTS, INC.
287
286
285
284
283
282
281
280
279
278
277
TOPSOIL
FINE
SAND
SAND W/
SOME SILT
COARSE SAND,
SOME FINES 0-180 TOPSOIL.
18"-36* SILTY SAND
36"-54# FINE SAND
54"-86" FINE/COARSE SAND
FERC RATE: 2 MIN./IN
14IAX G.W. AT 70"
PERC DEPTH 42"
` SOIL —PROFILES
TOPSOIL
FINE
SAND
SAND W1
SOME SILT
COARSE SAND
SOME FINES
287
(8')
SOIL
286
285
(3e)
281
284
283
`3")
282
(72.1
0—e" TOPSOIL
WATER (84")
281
WATER (84')
277
6-25-92
280
279
278
q*T7
TOPSOIL
FINE
SAND
SAND W1
SOME SILT
COARSE SAND
SOME FINES
i
s
i
i
LEGEND
�- — 286 -- EXISTING GROUND
E
288 FINISHED GROUND
o o SEPTIC TANK
i
c� DISTRI13U11ON BOX
4
OBSERVATION HOLE
285.00 PIPE INVERT ELEVATION
SCHEDULE 40 PV`C; PIPE
LEACHING TRENCH
}
RESERVE AREA
a
FEET
METERS O
20 40
:•
iom 15M 20M 25M
r � s
t
s �
4;~
3C� • 2
75
L84
(8 j
SOIL
283
282
(36")
281
280
279
`3")
278
0—e" TOPSOIL
WATER (84")
r-36# FINE SAND
6-25-92
277
X54")
27S
i
s
i
i
LEGEND
�- — 286 -- EXISTING GROUND
E
288 FINISHED GROUND
o o SEPTIC TANK
i
c� DISTRI13U11ON BOX
4
OBSERVATION HOLE
285.00 PIPE INVERT ELEVATION
SCHEDULE 40 PV`C; PIPE
LEACHING TRENCH
}
RESERVE AREA
a
FEET
METERS O
20 40
:•
iom 15M 20M 25M
r � s
t
s �
4;~
3C� • 2
75
TEST PIT 30—A
SOIL
0-8" TOPSOIL
8"-36" FINE SAND'
18•)
36"— 72" SAND W/SOME SILT
72#-120" COARSE SAND/SOME FIIN'ES
TEST PIT 30—B
`3")
s0c
0—e" TOPSOIL
r-36# FINE SAND
36"-78" SAND W/SOME SILT
X54")
78"-120" COARSE SAND/SOME FINES
PERC DEPTH = 60"
PERC RATE: 2.5 MIN.AN.
MAX G.W. AT 84"
NATER (70")
4-8-86
DATE: 4-8-86
ENGINEER: PHARMER ENGINEER CORP.
`86")
TEST PIT 28'
SOIL:
i
s
i
i
LEGEND
�- — 286 -- EXISTING GROUND
E
288 FINISHED GROUND
o o SEPTIC TANK
i
c� DISTRI13U11ON BOX
4
OBSERVATION HOLE
285.00 PIPE INVERT ELEVATION
SCHEDULE 40 PV`C; PIPE
LEACHING TRENCH
}
RESERVE AREA
a
FEET
METERS O
20 40
:•
iom 15M 20M 25M
r � s
t
s �
4;~
3C� • 2
75