HomeMy WebLinkAboutSeptic System Design PlanLOT #3
PERC TEST DATA
PER SUBDIVISION PLAN
PERC #1
DEPTH - 29"
PRESOAK @ 8:45
11:35-91/4"
11:40 -10"
11:45 - 10 3/4"
11:50 - 1111/4"
11:55 - 12"
12:00 -12 1/2"
12:05 - 13"
12:10 - 13 1/4"
12:15 -13 1/2"
12:20 -14"
12:25 - 141/4"
12:30 -14 3/4"
12:35-1`i"
PERC RATE - 20 MINUTES PER INCH
TEST HOLE DATA
PER SUBDIVISION PLAN - (UNCAS HEALTH DEPARTMENT 5/24/18)
TH #1 0"-7" DARK BROWN TOPSOIL
17-43" BROWN MEDIUM SANDY LOAM
43"-81" TAN SILTY SAND & GRAVEL W/COBBLES
NO LEDGE, NO REDOX, NO GROUNDWATER
ROOTS TO 57"
TH #2 0"-6" DARK BROWN TOPSOIL
6"-30" BROWN MEDIUM SANDY LOAM
30"-78" TAN SILTY SAND & GRAVEL W/COBBLES
NO LEDGE, NO REDOX, NO GROUNDWATER
ROOTS TO 591"
TH #3 W-7" DARK BROWN TOPSOIL
17"-32" BROWN MEDIUM SANDY LOAM
32"-79" TAN SILTY SAND & GRAVEL W/COBBLES
NO LEDGE, NO REDOX, NO GROUNDWATER
ROOTS TO 58"
TH #3R 0"-6" DARK BROWN TOPSOIL
6"-39" BROWN MEDIUM SANDY LOAM
39"-91" TAN SILTY SAND & GRAVEL W/COBBLES
NO LEDGE, NO REDOX, NO GROUNDWATER
ROOTS TO 60"
DESIGN DATA
MLSS NOT CONSIDERED
yPERC RATE: 10.1 TO 20 MIN. PER INCH
4 BEDROOM HOUSE REQUIRES (675 + 112.5) =787.5 S.F.
I I I OF EFFECTIVE LEACHING AREA
I► i FILTER USE 57LF OF GEOMTRIX GST 6218
I FABRIC (i (57 x 14 = 798 S.F.)
ANGLE 100 UP SLOPE USE 1,250 GAL. 2 COMPARTMENT SEPTIC TANK
I POST FOR STABILITY AND W/ OUTLET FILTER DEVICE
I I I I �O SELF CLEANING
I I 14
I
I �
1 COMPACTED ; w
1 BACKFILL '" A
I 1
li SILT FENCE 10'-6"
I, I NOT TO SCALE
KNOCKOUT INLET AND
' OUTLET OPENINGS
1 i
1
1 1 � F -1 F -1 I I
1 cV
TH# 1 I ( ► 00 N
I TH#3R I I I I i
I I I
57LF OF GEOMATRIX GST -6218 1
J L
EXISTING GRADE @ SYSTEM - 469.5 /� ^ j L
BOTTOM OF SYSTEM - 466.50 �� /A f
TOP OF SYSTEM - 468.00 �� / I 2X2 5/8 16 GA. WIRE MESH - CAST
7
i CONCRETE COVERS
INV. 4" TOP DISTRIBUTION PIPE - 468.00 �� 1 1 v2
P/ (
PLAN
• N
P-14 ( I CAPACITIES A B C
/ I 1250 GAL 61" 51" 48"
/ I
1500 GAL 69"
// / I ".• M 4 x 4 12.6/12.6 GA. WIRE MESH
171/21' 6 x 6 6/6 GA. Wwff -I
1,250 (2COMP.)
SEPTIC TANK �r / �� / I LOT #2 `�' 2 INLEMASPHALTSEAL
3" VENT----
INV. IN -468.75 8LF-4"PVC /r TH# W
r�
INV. OUT -468.50 (SDR -35) / / TH#3
(SEE DETAIL) f / / I N ) HOT p
STANDARD D -BOX W/ELBOW
40
N/F PROPOSED °` NOT TO SCALE TRAVIS BISCHOFF �LIMITS OFCLEARING D-BOXINSTALL & MAINTAIN.. .....�
I INV. IN -468.20 A CONTINUOUS LINE OF
^b 32LF-4"PVC INV. OUT -468.10 SILT FENCE (SEE DETAIL) i
(_ASTM D1785) CROSS SECTION
M ( 1250/1500 GALLON
a, I 2 COMPARTMENT
SEPTIC TANK
I DECK NOT TO SCALE
n.TV
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
A N
N
m
kSTM C-33 SAND
'T DOT #6 STONE
DISTRIBUTION PIPE
FINISH GRADE TO
DIRECT RUNOFF AWA4
FROM SYSTEM
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
PER 1000 S.F.
STRAWMAY 70-90 lbs.
WOOD CHIPS 185-275 lbs.
PLANTING SCHEDULE:
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:
NOTES
FREE FROM WEEDS
AND COARSE MATTER
FREE OF COARSE MATTER
AIR DRIED, TREAT WITH
12lbs NITROGEN / TON
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 N0.4 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
OUTLET 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:
6" MIN.
COVER �FILTERFABRIC
OVER
Z*_lwpj,;.lp.2?.`lll___q
.!
CT DOT #6 STONE
ASTM C-33 SAND
CROSS SECTION A -A
6" MIN.
FEL "
H = 6" (GST 6206)
12" (GST 6212)
18" (GST 6218)
24" (GST 6224)
30" (GST 6230)
36" (GST 6236)
CROSS SECTION B -B
GEOMATRIX CST LEACHING SYSTEM
F.F. FIRST FLOOR
EL. ELEVATfON o
S.F. SQUAT DEET
PROVIDE ANTI -TRACKING PAD
1;,13t11ft11i�„
TYP. TYPICAL (PER SUBDIVISION PLAN)
•
'S
x462.5 EXISTING SPOT ELEVATION
x464.3 PROPOSED SPOT ELEVATION
- - 458 - - EXISTING CONTOURSY Y .
TO
vf GR" IEF, T SIS MAP IS SUBSTANTIALLY CORRECT
n PROPOSED CONTOURS �S dTEII HE ON. I NOIR VALID WITHOUT A LIVE SIGNATURE
Tf F p _ 0� , LO T ST RVEYOR HEREON.
BUILDING SETBACK LINE
At
- TEST HOLE
RICHARD A. DES S L.S. #70019 DATE
PROJECT NO. 19-084
DRAWN BY: R.A.D.
SCALE: 1 "=20'
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 D1785 SCHD 40 OR APPROVED EQUAL.
3. 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.
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 - (1.13 ACRES f).
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. T08/20/18, PREPARED BY BOUNDARIES, LLC.