HomeMy WebLinkAboutSeptic System Design PlanFILTER
FABRIC
POST -
COMPACTED
BACKFILL ---/
PERC TEST DATA TEST HOLE DATA
PER SUBDIVISION PLAN PER SUBDIVISION PLAN - (UNCAS HEALTH DEPARTMENT 5/24/18)
PERC #2
lv -u
KNOCKOUT INLET AND
OUTLET OPENINGS
PER 1000 S.F.
DEPTH - 30"
TH #4 0"-8" DARK BROWN TOPSOIL
TH #6 0"-6" DARK BROWN TOPSOIL
PRESOAK @ 2:15
3:19 - 4 3/8"
8"-48" BROWN MEDIUM SANDY LOAM
6"-39" BROWN MEDIUM SANDY LOAM
3:24 - 7++
48"-87" TAN SILTY SAND & GRAVEL W/COBBLES
39"-71" TAN SILTY SAND & GRAVEL W/COBBLES/COMPACT
3:29 - 8 7/8"
NO LEDGE, REDOX@35", NO GROUNDWATER
NO LEDGE, NO REDOX, NO GROUNDWATER
3:34 -101%1"
ROOTS TO 55"
ROOTS TO 39"
3:39 - 12"
TYPICAL
SEED MIXTURE:
�O
TH #5 0"'-8" DARK BROWN TOPSOIL
TH #6R V-7" DARK BROWN TOPSOIL
3:54 -15 I/4"
8"-48" BROWN MEDIUM SANDY LOAM
7"-36" BROWN MEDIUM SANDY LOAM
3:59 - 16 1/2"
48"-81" TAN SILTY SAND & GRAVEL W/COBBLES
36"-86" TAN SILTY SAND & GRAVEL W/COBBLES
LOT#3
NO LEDGE, REDOX@42", NO GROUNDWATER
NO LEDGE, REDOX@36", NO GROUNDWATER
4:09 -18 3/4"
ROOTS TO 50"
ROOTS TO 52"
4:14 - 19 1/4"
b� 00
4:19 - 20"
TO jAY IOW �, m IEF, HIS MAP IS SUBSTANTIALLY CORRECT
- - 458 - -
EXISTING CONTOURS
IPIN
REC.
AS NOTED i` THi �' IS N T VALID WITHOUT A LIVE SIGNATURE
--L��-
458
PROPOSED CONTOURS
G.•
A SEI F HE URVEYOR HEREON.
,A -
N 75°16'01"E
BUILDING SETBACK LINE
:
=
1 r,fA
f
/
150.56'
ENGINEER DATE
ENGINEER
f ° fig € 9 # t # $ v
i
RICHARD A. DESCHAMPS L.S. #70019 DATE
IPIN
REC.
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40'
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TH #4
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A CONTINUOUS
LINE OF
PROPOSED
�1II ILT FENCE (SEE DETAIL
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LIMITS OF
>i I
CLEARING
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II
l 58LF OF GEOMATRIX GST -6212
, ;G�'-2R
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EXISTING GRADE @ SYSTEM - 452.0 P 2
BOTTOM OF SYSTEM - 450.60
TOP OF SYSTEM - 451.60
INV. 4" TOP DISTRIBUTION PIPE - 451.60
l
} TH#6
l1,250 (2COMP.) TH#5
`-
SEPTIC TANK
INV. IN -452.25
1
LOT# 1
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INV. OUT -452.00
D O,
(SEE DETAIL)
-B
INv.IN`451.80
N
INV. OUT,451.7
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ill
37LF-411PVC 8LF-4"PVC II
(ASTM D1785) (SDR -35)
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LOT#3
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INV •
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PROPOSED
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4 BEDROOM
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RESIDENCE
(RAISED RANCH)
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F.F.-463.0
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4
/
BSM'T-454.0
FOOTING I
DRAIN 115'
/
_ 4 OUTLET
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PROPOSED
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LIMITS OF
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CLEARING
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UTILITIES
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W 82.04'
S 76°15'34" y�r
MON
69.06 `.
MON
53
S 62°39'"
I
REC.
REC.
452
PROVIDE
%
1
-- -
BENCHNMARK
PAVED
NAIL IN POLE
APRON
ELEV.-457.99
-.
CL&P
• #6860
WILLIAMS
PROVIDE ANTI-TERACKING PAD i�
ROAD
AD
N411
(PER SUBDIVISION PLAN)
i
CL&P
#6861
FILTER
FABRIC
POST -
COMPACTED
BACKFILL ---/
PERC TEST DATA TEST HOLE DATA
PER SUBDIVISION PLAN PER SUBDIVISION PLAN - (UNCAS HEALTH DEPARTMENT 5/24/18)
PERC #2
lv -u
KNOCKOUT INLET AND
OUTLET OPENINGS
PER 1000 S.F.
DEPTH - 30"
TH #4 0"-8" DARK BROWN TOPSOIL
TH #6 0"-6" DARK BROWN TOPSOIL
PRESOAK @ 2:15
3:19 - 4 3/8"
8"-48" BROWN MEDIUM SANDY LOAM
6"-39" BROWN MEDIUM SANDY LOAM
3:24 - 7++
48"-87" TAN SILTY SAND & GRAVEL W/COBBLES
39"-71" TAN SILTY SAND & GRAVEL W/COBBLES/COMPACT
3:29 - 8 7/8"
NO LEDGE, REDOX@35", NO GROUNDWATER
NO LEDGE, NO REDOX, NO GROUNDWATER
3:34 -101%1"
ROOTS TO 55"
ROOTS TO 39"
3:39 - 12"
TYPICAL
SEED MIXTURE:
3:44 - 13"
3:49 - 14 I/4"
TH #5 0"'-8" DARK BROWN TOPSOIL
TH #6R V-7" DARK BROWN TOPSOIL
3:54 -15 I/4"
8"-48" BROWN MEDIUM SANDY LOAM
7"-36" BROWN MEDIUM SANDY LOAM
3:59 - 16 1/2"
48"-81" TAN SILTY SAND & GRAVEL W/COBBLES
36"-86" TAN SILTY SAND & GRAVEL W/COBBLES
4:04 -17 3/4"
NO LEDGE, REDOX@42", NO GROUNDWATER
NO LEDGE, REDOX@36", NO GROUNDWATER
4:09 -18 3/4"
ROOTS TO 50"
ROOTS TO 52"
4:14 - 19 1/4"
4:19 - 20"
TO jAY IOW �, m IEF, HIS MAP IS SUBSTANTIALLY CORRECT
PERC RATE - 6 MINUTES PER INCH
MLSS & DESIGN DATA
ANGLE 100 UP SLOPE
FOR STABILITY AND
SELF CLEANING
� x
_ Q
SILT FENCE
NOT TO SCALE
2X2 5 8 16 GA, WIRE MESH 7t
1 1/2"7n
STANDARD D -BOX W/ELBOW
NOT TO SCALE
z N
ASTM C-33 SAND SPECIFICATIONS:
SIEVE SIZE PERCENT PASSING
0.375" 100
#4 95-100
#8 80-100
#16 50-85
#30 25-60
#50 5-30
#100 <10
#200 <5
kSTM C-33 SAND
4 BEDROOM HOUSE
SLOPE -10.8%
PERC RATE - 5.1 TO 10.0 MIN./INCH
RESTRICTIVE LAYER - 35"
M.L.S.S. REQUIRED - 20 x 1.75 x 1.0 = 35'
M.L.S.S. PROVIDED - 58'
4 BEDROOM HOUSE REQUIRES 577.5 S.F.
OF EFFECTIVE LEACHING AREA
USE 58LF OF GEOMTR.IX GST 6212
(58 x 10 = 580 S.F.)
USE 1,250 GAL. 2 COMPARTMENT SEPTIC TANK
W/ OUTLET FILTER DEVICE
RESERVE AREA
58LF OF GEOMATRIX 6212 (58x10=580 S.F.)
CAST
CONCRETE COVERS
PLAN
CAPACITIES A B C
1250 GAL 61" 51" 48"
1500 GAL 69" 59" 1 56"
4 x 4 12.6/12.6 GA. WIRE MESH
117 1/2" / Ir-- 6 x 6 6/6 GA. WWyjj H
OUTLET
CONTINUOUS HOT P
ASPHALT SEAL
"--4" SCHED. #40 v
1250/1500 GALLON
2 COMPARTMENT
SEPTIC TANK
NOT TO SCALE
FINISH GRADE TO
DIRECT RUNOFF AWAY
FROM SYSTEM
CT DOT =6 STONE
:T DOT #6 STONE :kSTM C-33 SAND
CROSS SECTION A -A
DISTRIBUTION PIPE
FILTER FABRIC 6" MIN.
H = 6" (GST 6206) b
12" (GST 6212)
18" (GST 6218)
24" (GST 6224) �+
30" (GST 6230) N '
36" (GST 6236)
- CT DOT #6 STONE
SAND
CROSS SECTION B -B
GEOMATRIX GST LEACHING SYSTEM
LEGEND::
lv -u
KNOCKOUT INLET AND
OUTLET OPENINGS
PER 1000 S.F.
F -1 F
N
AND COARSE MATTER
EL.
ELEVATION
L- L� J L /_1 IJ
CAST
CONCRETE COVERS
PLAN
CAPACITIES A B C
1250 GAL 61" 51" 48"
1500 GAL 69" 59" 1 56"
4 x 4 12.6/12.6 GA. WIRE MESH
117 1/2" / Ir-- 6 x 6 6/6 GA. WWyjj H
OUTLET
CONTINUOUS HOT P
ASPHALT SEAL
"--4" SCHED. #40 v
1250/1500 GALLON
2 COMPARTMENT
SEPTIC TANK
NOT TO SCALE
FINISH GRADE TO
DIRECT RUNOFF AWAY
FROM SYSTEM
CT DOT =6 STONE
:T DOT #6 STONE :kSTM C-33 SAND
CROSS SECTION A -A
DISTRIBUTION PIPE
FILTER FABRIC 6" MIN.
H = 6" (GST 6206) b
12" (GST 6212)
18" (GST 6218)
24" (GST 6224) �+
30" (GST 6230) N '
36" (GST 6236)
- CT DOT #6 STONE
SAND
CROSS SECTION B -B
GEOMATRIX GST LEACHING SYSTEM
LEGEND::
NOTES
PER 1000 S.F.
F.F.
FIRST FLOOR
AND COARSE MATTER
EL.
ELEVATION
AIR DRIED, TREAT WITH
S.F.
SQUARE FEET
SEEDING DATES:
APRIL 1------- JUNE 15
TYP.
TYPICAL
SEED MIXTURE:
45% RED FESCUE
x462.5
EXISTING SPOT ELEVATION
10% PERENNIAL RYE
FTl InfN }
co
PROPOSED SPOT ELEVATION
e�� �'L=
x464.3
TO jAY IOW �, m IEF, HIS MAP IS SUBSTANTIALLY CORRECT
- - 458 - -
EXISTING CONTOURS
AS NOTED i` THi �' IS N T VALID WITHOUT A LIVE SIGNATURE
--L��-
458
PROPOSED CONTOURS
G.•
A SEI F HE URVEYOR HEREON.
,A -
BUILDING SETBACK LINE
:
=
1 r,fA
f
TEST HOLE
ENGINEER DATE
ENGINEER
f ° fig € 9 # t # $ v
-
RICHARD A. DESCHAMPS L.S. #70019 DATE
EROSION AND SEDIMENT CONTROL PLAN:
1. CLEARING, GRUBBING, AND GRADING OF THE PROPOSED SITE
TO BE LIMITED TO AREAS ADJACENT TO THE PROPOSED HOUSE
DRIVEWAY AND SEPTIC SYSTEM.
2. DISTURBED AREAS TO BE LOAMED, SEEDED, AND MULCHED,
3. ALL TOPSOIL TO BE STOCKPILED ON SITE AND PROTECTED
WITH HAYBALES OR SILT FENCE.
4. ALL CUT AND FILL SLOPES ARE NOT TO EXCEED 3:1 SLOPES.
5. PRIOR TO SITE DISTURBANCE, THE REPRESENTATIVE OF THE
TOWN OF MONTVILLE SHALL BE NOTIFIED WHEN SEDIMENT
CONTROL MEASURES ARE IN PLACE SO THAT THE INSPECTION
CAN OCCUR.
6. THE CONTRACTOR WILL BE RESPONSIBLE FOR THE INSTALLATION
AND MAINTENANCE OF ALL REQUIRED SEDIMENT CONTROL
MEASURES THROUGHOUT CONSTRUCTION.
7. DUST CONTROL WILL BE ACCOMPLISHED BY SPRAYING WITH
WATER, AND IF NECESSARY THE APPLICATION OF CALCIUM CHLORIDE.
TEMPORARY VEGETATIVE COVER:
MULCHES APPLICATION RATE
NOTES
PER 1000 S.F.
STRAWMAY 70-90 lbs.
FREE FROM WEEDS
AND COARSE MATTER
WOOD CHIPS 185-275 lbs.
FREE OF COARSE MATTER
AIR DRIED, TREAT WITH
PLANTING SCHEDULE:
121bs NITROGEN / TON
SEEDING DATES:
APRIL 1------- JUNE 15
AUGUST 1------ SEPTEMBER 15
SEED MIXTURE:
45% RED FESCUE
45% KENTUCKY BLUE GRASS
10% PERENNIAL RYE
DESIGN NOTES:
1. ALL CONSTRUCTION TO CONFORM TO STANDARDS OF THE CONNECTICUT
PUBLIC HEALTH CODE AND TO THE SATISFACTION OF THE TOWN SANATARIAN.
2, THIS SYSTEM HAS NOT BEEN DESIGNED FOR THE USE OF LARGE
CAPACITY (+100 GALLONS), DISCHARGE TYPE BATHTUBS. RESIDENTIAL
GARBAGE DISPOSALS ARE NOT ANTICIPATED FOR THIS DESIGN. IN THE
EVENT THAT SUCH AN INSTALLATION IS CONTEMPLATED FOR THE
PROPOSED HOUSE, A LARGER SEPTIC TANK AND INCREASED LEACHING
FIELD CAPACITY WILL BE REQUIRED,
LEACHING SYSTEM CONSTRUCTION NOTES:
1. TOPSOIL TO BE STRIPPED OFF PRIOR TO FILLING. FILL MATERIAL BETWEEN AND BEYOND
TRENCHES TO BE PERVIOUS, GOOD QUALITY AND CLEAN MEDIUM SAND (SELECT FILL) PLACED
AND COMPACTED IN 6" LIFTS. SELECT FILL SHALL MEET THE FOLLOWING MINIMUM REQUIREMENTS:
A. THE FILL SHALL NOT CONTAIN ANY MATERIAL LARGER THAN 3 INCHES,
B. THE FILL SHALL NOT CONTAIN MORE THAN 45 PERCENT GRAVEL (GRAVEL IS BETWEEN NO.4 & 3" SIEVES)
NO MORE THAN 45 PERCENT OF THE MATERIAL CAN BE RETAINED ON THE NO.4 SIEVE.
C. THE FILL LESS THE GRAVEL SHALL MEET THE FOLLOWING GRADATION CRITERIA:
SIEVE SIZE: #4 #10 #40 #100 #200
% PASSING: 100 70-100 **10-50 0-20 0-5 WET SIEVE
%PASSING: 100 70-100 10-75 0-5 0-2.5 DRY SIEVE
** PERCENT PASSING THE #40 SIEVE CAN BE INCREASED TO NO GREATER THAN 75% IF THE PERCENT
PASSING THE #100 SIEVE DOES NOT EXCEED 10% AND THE #200 SIEVE DOES NOT EXCEED 5%.
2. DOCUMENTATION OF TEST RESULTS ARE TO BE PROVIDED TO THE HEALTH DISTRICT.
3. FILL MATERIAL TO BE PLACED PRIOR TO TRENCH EXCAVATION. NO TRAFFIC OTHER THAN
TRACK -DRIVEN EQUIPMENT IS TO CROSS, DUMP, UNLOAD OR OTHERWISE COMPACT THE FILL AREA
AFTER TOPSOIL REMOVAL. FILL MATERIAL TO BE DUMPED AT THE EDGE OF THE STRIPPED AREA AND
SPREAD AND COMPACTED WITH TRACK -DRIVEN VEHICLES. STOCKPILING IS TO TAKE PLACE UPGRADIENT OF
THE LEACHING AREA, THE AREA DOWN GRADIENT OF THE LEACHING AREA IS NOT TO BE DISTURBED.
SEPTIC SYSTEM CONSTRUCTION NOTES:
1, CONSTRUCTION SEQUENCE:
A. STRIP & STOCKPILE TOPSOIL FROM LEACHING TRENCH AREA,
B. PLACE SELECT FILL TO 8" BELOW EXISTING GRADE.(IF REQUIRED).
C. CONSTRUCT LEACHING TRENCHES TO DESIGN LINE & GRADE.
D, LOAM, FINE GRADE TO FINISHED GRADE AND SEED. PROTECT DISTURBED AREAS
WITH EROSION CONTROLS UNTIL FIRST MOWING.
2. THE PIPE BETWEEN THE HOUSE AND SEPTIC TANK SHALL BE 4 IN. EXTRA HEAVY CAST IRON,
DUCTILE IRON OR EXTRA STRENGTH PVC ASTM D 1785 SCHD 40 OR APPROVED EQUAL.
�• ALL DISTRIBUTION PIPE IS TO BE ASTM D3034 SDR 35 (4"PVC) OR APPROVED EQUAL UNLESS NOTED.
4. SEPTIC TANK SHALL BE SET LEVEL ON A MINIMUM OF 6" OF PROCESSED GRAVEL OR BROKEN
STONE ON COMPACTED SUBGRADE.
5. THERE ARE NO APPARENT WELLS OR SEPTIC FIELDS WITHIN 75' OF THE PROPOSED WELL AND
SEPTIC SYSTEM AS SHOWN ON THIS PLAN.
6. APPROVED STONE AGGREGATE FOR LEACHING TRENCHES SHALL BROKEN STONE, CRUSHED
STONE, OR SCREENED GRAVEL MEETING CT DOT FROM 814A SPECIFICATION FOR M.01.01 FOR NO, 4
STONE:
SIEVE SIZE PERCENT PASSING (BY WEIGHT
2 -INCH 100
1 -1/2 -INCH 90-100
1 -INCH 2O-55
3/4 -INCH 0-10
3/8 -INCH 0-5
7. THE LOCATION AND ELEVATION OF THE PROPOSED SEPTIC SYSTEM SHALL BE STAKED IN THE
FIELD BY A LICENSED LAND SURVEYOR.
NOTES:
1. TOPOGRAPHIC INFORMATION ON THIS PLAN COMPLIES WITH T-2 MAPPING
STANDARDS.
2. PROPOSED HOUSE AND SEPTIC SYSTEM TO BE STAKED IN THE FIELD BY
A LAND SURVEYOR LICENSED IN THE STATE OF CONNECTICUT.
3. BASE FOR LEVELS: PER SUBDIVISION PLAN,
4. THE PROPERTY IS LOCATED IN ZONING DISTRICT - R-40.
5. THERE ARE NO WELLS LOCATED WITHIN 75' OF THE PROPOSED SEPTIC SYSTEM
LOCATED ON ABUTTING PROPERTIES.
6. TOTAL AREA OF PROPERTY - (0.97 ACRES
7. A BENCHMARK IS TO BE PLACED WITHIN 50' OF THE PROPOSED HOUSE &
SEPTIC SYSTEM AT THE TIME OF CONSTRUCTION.
8. ALL UNDERGROUND UTILITIES SHOULD BE MARKED OUT PRIOR TO THE
START OF CONSTRUCTION.
REFERENCE MAP:
RESUBDIVISION PLAN - CONCEPTUAL DEVELOPMENT PLAN PREPARED FOR
GNN HOLDINGS, LLC, 70 WILLAMS ROAD. MONTVILLE (OAKDALE) CONNECTICUT,
SCALE: 1"=40', DATE: JUNE 2018, REV. TO 8/20/18, PREPARED BY BOUNDARIES, LLC.