Conservation Commission Agenda (linked)

PRIMARY SEPTIC SYSTEM - CROSS SECTION A-A

GEOMATRIX GSTTMLEACHING SYSTEM
Plan View
os
6" (GST6206)
12" (GST6212)
| 18" (GST6218) |
24” (GST6224)
30” (GST6230)
36" (GST6236)
2
a
ere? DOT #6 stone
42" Distribution:
pipe*—= “2 ASTM C-33 Sand
ATR rs He 1a aye mn {or approved equivilent)
Copyright 2007 GEOMATRIX, LLC
Putonts Pending
GEOMATRIX ST LEACHING SYSTEM
in View
Geornatrix Systems, LLC., Killingworth, CT
960-663-3993
*3" min. |.D., ASTM D-3034, SDR 35 pipe for gravity applications
0.75" min. |.D., ASTM D-2665, SCH 40 PVC pipe for pressure applications
SEPTIC GENERAL NOTES
1. ALL WORK AND MATERIAL (SEPTIC TANK, DISTRIBUTION BOX, PIPE, ETC.) SHALL CONFORM TO THE CONNECTICUT
PUBLIC HEALTH CODE ON-SITE SEWAGE DISPOSAL REGULATIONS AND TECHNICAL STANDARDS FOR SUBSURFACE
SEWAGE DISPOSAL SYSTEMS, AS REVISED.
2. PROPOSED SEPTIC SYSTEMS SHALL BE STAKED IN THE FIELD BY A LAND SURVEYOR LICENSED IN THE STATE OF
CONNECTICUT. A BENCHMARK SHALL BE SET WITHIN 10’—15’ OF THE PROPOSED SEPTIC SYSTEM PRIOR TO
CONSTRUCTION.
SEWER LINE FROM FOUNDATION WALL TO SEPTIC TANK SHALL BE 4” SCHEDULE 40 PVC — ASTM D 1785 AND
JOINTS PER HEALTH DEPT. CODE.
PIPE FROM SEPTIC TANK TO DISTRIBUTION LINES SHALL BE 4” SOLID PVC CONFORMING TO ASTMD—3034 AND
SDR-35.
LEACHING SYSTEM ROWS SHALL BE SET LEVEL FOR ENTIRE LENGTH AND HAVE A CENTER TO CENTER SPACING
AS CALLED FOR IN THE CONNECTICUT PUBLIC HEALTH CODE.
THERE ARE PRESENTLY NO KNOWN WATER WELLS WITHIN 75’ OF THE PROPOSED SEPTIC SYSTEMS.
PROPOSED SEPTIC AREAS SHALL BE CLEARED AND GRUBBED. ALL TOPSOIL IN THE AREA SHALL BE STRIPPED
AND STOCKPILED FOR FUTURE USE.
ALL FILL MATERIAL SHALL BE CLEAN EARTH FREE OF STUMPS, ORGANICS, CONSTRUCTION DEBRIS AND TOPSOIL.
TOPSOIL SHALL BE RE-—APPLIED OVER ALL FILL AREAS AND ALL DISTURBED AREAS IN ACCORDANCE WITH THE
SLOPE STABILIZATION DETAILS.
10. ALL EXISTING UTILITIES TO BE ACCURATELY LOCATED PRIOR TO CONSTRUCTION CONTRACTOR SHALL CONTACT
CALL BEFORE YOU DIG: 811.
SELECT FILL SPECIFICATION
© ND wR w
GEOMATRIX GST"LEACHING SYSTEM
B-B' CROSS SECTION
Finished Grade shall be pitched to sheet flow
stormwater away from system VV VV
Cover material depth shall be >6"
and shall be uniform over system
ASTM G-33 Sand “
scmeouselesiied Pa Filter Fabric "Si Distribution Pipe*
*
Ket ] Pt ees
K—[T—*—
*H= 6" (GST6206) “P= 2" - 5.5"
12" (GS16212) *3" min. |.D., ASTM B-3034, SDR 35 pipe for gravity applications
18" (GST621 8) 0.75" min. |.D., ASTM D-2665, SCH 40 PVC pipe for pressure applications
30" (GST6230) ome
36" (GST6236) Re es Kaeo SYSTEM
Geomatrix Systems, LLC., Killingworth, CT
860-663-3893
NE
&/2B/2007 CEO CLS EB
DRAWN BY: CRP [S£er 3 OF 3
GEOMATRIX GST"LEACHING SYSTEM
A-A' CROSS SECTION
Finished Grade shall be pitched to sheet flow
stormwater away from system \ | / V VV
Cover material depth shall be >6"
and “— be uniform over system
CT DOT No. 6 stone
22"| 4"| 4a N ASTM C-33 Sand
for approved equivilant)
*H= 6" (GST6206)
12" (GST6212)
[___18"(GST6218) _|
24" (GST6224)
30" (GST6230)
36" (GST6236)
Copyright 2007 GEOMATRIX, LLC
Patents Pencdin|
GEOMATRIX ST LEACHING SYSTEM
4-A’ Gross Section
Geomatrix Systems, LLC., Kilingworth, CT
860-663-3893
NONE
&/ 28/2007
0S
DRAWN BY: CRP [Seer 7 OF 3
GEOTEXTILE FABRIC: FABRIC
SHALL BE CERTIFIED TO
CONFORM WITH FIGURE GSF-1
OF THE E&S GUIDELINES.
6"x6” TRENCH W/
COMPACTED BACKFILL
J 2°x2"x48” WOOD STAKE
U
U
U
B
U
5
5
30” MAX. __| Ow
FENCE HEIGHT _—
me
—W)
NY
12” MIN.—
NATIVE SOIL
SILT FENCE SECTION
NOT TO SCALE
SELECT FILL PLACED WITHIN AND ADJACENT TO LEACHING SYSTEM AREAS SHALL BE CLEAN MATERIAL
COMPRISED OF SAND, OR SAND AND GRAVEL, FREE FROM ORGANIC MATTER AND FOREIGN SUBSTANCES. THE
SELECT FILL SHALL MEET THE FOLLOWING REQUIREMENTS UNLESS OTHERWISE APPROVED BY THE DESIGN P.E.
SELECT FILL EXCEEDING 6 PERCENT PASSING THE #200 SIEVE BASED ON WET SIEVE ANALYSIS CANNOT BE
APPROVED BY THE DESIGN P.E.
1. THE SELECT FILL SHALL NOT CONTAIN ANY MATERIAL LARGER THAN THE THREE (3) INCH SIEVE.
2. UP TO 45% OF THE DRY WEIGHT OF THE REPRESENTATIVE SAMPLE MAY BE RETAINED (GRAVEL PORTION)
ON THE #4 SIEVE.
3. THE MATERIAL THAT PASSES THE #4 SIEVE IS THEN REWEIGHED AND THE SIEVE ANALYSIS STARTED.
4. THE REMAINING SAMPLE SHALL MEET THE FOLLOWING GRADATION CRITERIA
PERCENT PASSING
SIEVE SIZE WET SIEVE DRY SIEVE
#4 100 100
#10 70—100 70—100
#40 10—50* 10-75
#100 0-20 0-5
#200 0-5 0-2.5
* 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.
2x2 5/8 16 GA.
WIRE MESH
1%”
1%,”
1 0%”
8%,”
. 4
<
Pe ——— - —"
i res “4 4
a *
2” the
STANDARD D-BOX DETAIL
NOT TO SCALE
10’ RAD. (MIN)
12” MINIMUM
2” DIA. CRUSHED STONE
FILTER FABRIC
ANTI- TRACKING PAD DETAIL
NOT TO SCALE
EROSION & SEDIMENTATION CONTROL NARRATIVE
1.
BO
oO ND oO
10.
11.
12.
13.
14.
15.
16.
17.
THE EROSION & SEDIMENTATION CONTROL PLAN AND DETAILS HAVE BEEN DEVELOPED AS A STRATEGY TO CONTROL SOIL EROSION
AND SEDIMENTATION DURING AND AFTER CONSTRUCTION. THIS PLAN IS BASED ON THE ”2002 CONNECTICUT GUIDELINES FOR
SOIL EROSION AND SEDIMENT CONTROL” BY THE CONNECTICUT COUNCIL ON SOIL AND WATER CONSERVATION IN COOPERATION
WITH THE CONNECTICUT DEP.
THE PROPOSED LOCATIONS OF SILTATION AND EROSION CONTROL MEASURES ARE SHOWN ON THE PLANS. THE CONTRACTOR
SHALL PROVIDED SILT FENCE, STONE CHECK DAMS AND/OR OTHER EROSION CONTROL MEASURES AS NEEDED OR DIRECTED BY
THE ENGINEER OR TOWN STAFF TO ADEQUATELY PREVENT SEDIMENT TRANSPORT.
EROSION AND SEDIMENTATION CONTROL MEASURES SHALL BE INSTALLED PRIOR TO SITE DISTURBANCE.
THE CONTRACTOR SHALL INSPECT, REPAIR AND/OR REPLACE EROSION CONTROL MEASURES EVERY 7 DAYS AND IMMEDIATELY
FOLLOWING ANY SIGNIFICANT RAINFALL OR SNOW MELT. SEDIMENT DEPOSITS MUST BE REMOVED WHEN WHEN DEPOSITS REACH
APPROXIMATELY ONE HALF THE HEIGHT OF THE BARRIER. SEDIMENT CONTROL DEVICES SHALL REMAIN IN PLACE AND BE
MAINTAINED BY THE CONTRACTOR UNTIL AREAS UPSLOPE ARE PERMANENTLY STABILIZED.
STAKED HAY BALE SILT BARRIERS OR SILT FENCE SHALL BE INSTALLED AROUND ANY TEMPORARY STOCKPILE AREAS.
TEMPORARY VEGETATIVE COVER MAY BE REQUIRED (SEE NOTE).
INLET SEDIMENTATION CONTROL DEVICES SHALL BE INSTALLED UNDER THE GRATES OF ALL NEW CATCH BASINS AT THE TIME OF
INSTALLATION, AND UNDER THE GRATES OF EXISTING CATCH BASINS IN THE CONSTRUCTION AREA.
CONTINUOUS DUST CONTROL USING WATER, CALCIUM CHLORIDE OR APPROVED EQUAL SHALL BE PROVIDED FOR ALL EARTH
STOCKPILES, EARTH PILED ALONG EXCAVATIONS, SURFACES OF BACKFILLED TRENCHES AND GRAVELED ROADWAY SURFACES.
IF DEWATERING IS NECESSARY DURING ANY TIME OF CONSTRUCTION A CLEAR WATER DISCHARGE SHALL BE PROVIDED AS
PROPOSED BY THE CONTRACTOR AND APPROVED BY THE ENGINEER.
ALL DISTURBED AREAS SHALL BE RESTORED PER THE SLOPE STABILIZATION AND PERMANENT VEGETATION DETAILS. ALL
DISTURBED AREAS THAT ARE SLOPED LESS THAN THREE HORIZONTAL TO ONE VERTICAL (3:1) SLOPE SHALL BE LOAMED, SEEDED,
EROSION CONTROL MATTING SHALL BE
PROVIDED ON ALL DISTURBED AREAS THAT ARE SLOPED MORE THAN THREE HORIZONTAL TO ONE VERTICAL (3:1).
IF FINAL SEEDING OF DISTURBED AREAS IS NOT TO BE COMPLETED BEFORE OCTOBER 15, THE CONTRACTOR SHALL PROVIDE
TEMPORARY MULCHING (DORMANT SEEDING MAY BE ATTEMPTED AS WELL) TO PROTECT THE SITE AND DELAY PERMANENT
FERTILIZED AND MULCHED PER THE PERMANENT VEGETATIVE COVER SPECIFICATIONS.
SEEDING.
WHEN FEASIBLE, TEMPORARY SEEDING OF DISTURBED AREAS THAT HAVE NOT BEEN FINISHED GRADED SHALL BE COMPLETED
PRIOR TO OCTOBER 15.
ANY EROSION WHICH OCCURS WITHIN THE DISTURBED AREAS SHALL BE IMMEDIATELY REPAIRED AND
CONSTRUCTION PHASE, INTERCEPTED SEDIMENT SHALL BE RETURNED TO THE SITE.
ANY, SHALL BE DISPOSED OF IN A MANNER APPROVED BY THE TOWN AND ENGINEER.
EROSION AND SEDIMENTATION CONTROL MEASURES SHALL REMAIN IN PLACE UNTIL VEGETATION IS RE—-ESTABLISHED OR SLOPES
ARE STABILIZED AND REMOVAL IS APPROVED BY THE TOWN.
STABILIZED. DURING THE
POST SEEDING, INTERCEPTED SEDIMENT, IF
UNFORESEEN PROBLEMS WHICH ARE ENCOUNTERED IN THE FIELD SHALL BE SOLVED ACCORDING TO THE "2002 CONNECTICUT
GUIDELINES FOR SOIL EROSION AND SEDIMENT CONTROL” BY THE CONNECTICUT COUNCIL ON SOIL AND WATER CONSERVATION IN
COOPERATION WITH THE CONNECTICUT ~~ DEP.
THE CONTRACTOR SHALL PROVIDE THE NAME AND EMERGENCY CONTACT INFORMATION FOR THE PROJECT PERSONNEL
RESPONSIBLE FOR EROSION AND SEDIMENTATION CONTROLS PRIOR TO THE START OF CONSTRUCTION.
THE WETLANDS ENFORCEMENT OFFICER SHALL BE NOTIFIED AT LEAST 2 BUSINESS DAYS PRIOR TO CONSTRUCTION TO INSPECT
EROSION CONTROLS.
THE WETLAND ENFORCEMENT OFFICER SHALL BE NOTIFIED AT THE COMPLETION OF WORK FOR FINAL
OF PERMIT COMPLIANCE.
TEMPORARY VEGETATIVE COVER
INSPECTION AND SIGN OFF
A TEMPORARY SEEDING OF RYE GRASS WILL BE COMPLETED WITHIN 15 DAYS OF THE FORMATION OF STOCKPILES. IF THE SOIL IN
THE STOCKPILES HAS BEEN COMPACTED BY CONSTRUCTION OPERATIONS IT SHALL BE LOOSENED TO A DEPTH OF 2 INCHES
BEFORE THE FERTILIZER, LIME AND SEED IS APPLIED. 10-10-10 FERTILIZER AT A RATE OF 7.5 POUNDS PER 1000 S.F.
LIMESTONE AT A RATE OF 90 LBS. PER 1000 S.F. SHALL BE USED.
RYE GRASS APPLIED AT A RATE OF 1 LB. PER 1000 S.F.
SHALL PROVIDE THE TEMPORARY VEGETATIVE COVER. STRAW FREE FROM WEEDS AND COARSE MATTER SHALL BE USED AT A RATE
OF 70-90 LBS. PER 1000 S.F. AS A TEMPORARY MULCH.
OVER ENTIRE SURFACE SO CLEAT MARKS ARE PARALLEL TO THE CONTOURS.
PERMANENT VEGETATIVE COVER
APPLY MULCH AND DRIVE TRACKED EQUIPMENT UP AND DOWN SLOPE
TOPSOIL WILL BE REPLACED ONCE THE EXCAVATIONS HAVE BEEN COMPLETED AND THE SLOPES ARE GRADED AS SHOWN ON THE
PLANS. PROVIDE SLOPE PROTECTION AS CALLED FOR ON THE PLANS AND DETAILS. TOPSOIL SHALL BE SPREAD AT A MINIMUM
COMPACTED DEPTH OF 4 INCHES.
DIMENSION WILL BE REMOVED AS WELL AS DEBRIS.
— APPLY AGRICULTURAL GROUND LIMESTONE AT THE RATE OF TWO TONS PER ACRE OR 100 LBS. PER 1000 S.F.
— APPLY 10-10-10 FERTILIZER OR EQUIVALENT AT A RATE OF 300 LBS. PER ACRE OR 7.5 LBS. PER S.F.
— WORK LIMESTONE AND FERTILIZER INTO THE SOIL TO A DEPTH OF 4 INCHES.
— INSPECT SEEDBED BEFORE SEEDING.
— IF TRAFFIC HAS COMPACTED THE SOIL, RETILL COMPACTED AREAS.
— APPLY THE FOLLOWING GRASS SEED MIX:
SEED MIXTURE
ALL DISTURBED AREAS LBS. ZACRE LBS.
KENTUCKY BLUEGRASS 75
CREEPING RED FESCUE 75
PERENNIAL RYEGRASS 25
175
THE RECOMMENDED SEEDING DATES ARE:
IMMEDIATELY FOLLOWING SEEDING, FIRM SEED BED WITH A ROLLER AND MULCH WITH WEED FREE STRAW.
APRIL 1 — JUNE 15 AND AUGUST 15 — OCTOBER 15
1000 _S.F.
1.72
1.72
0.58
4.00
ONCE THE TOPSOIL HAS BEEN SPREAD, ALL STONES TWO INCHES OR LARGER IN ANY
IF PERMANENT
VEGETATIVE COVER IS HAS NOT BEEN ESTABLISHED BY OCTOBER 15, APPLY A TEMPORARY VEGETATIVE COVER ON THE TOPSOIL.
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IN SEINNISSNSINSSR NISSEN NLS NINN
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1. PROVIDE 6” THICKNESS OF TOPSOIL OVER CLEAN FILL. PREPARE SOIL BEFORE
INSTALLING BLANKETS, INCLUDING APPLICATION OF LIME,
FERTILIZER, AND SEED MIX PER PERMANENT VEGETATIVE COVER NOTES. (SHALL BE PAID
FOR AT THE UNIT PRICE FOR LOAM, SEED, FERTILIZE & MULCH)
BEGIN AT THE TOP OF THE SLOPE BY ANCHORING THE BLANKET IN 6” DEEP x 6”
WIDE TRENCH, BACKFILL AND COMPACT THE TRENCH AFTER STAPLING.
ROLL THE BLANKET (A) DOWN OR (B) HORIZONTALLY ACROSS THE SLOPE.
THE EDGES OF PARALLEL BLANKETS MUST BE STAPLED WITH APPROXIMATELY 2”
OVERLAP.
WHEN BLANKETS MUST BE SPLICED DOWN THE SLOPE, PLACE BLANKETS END OVER
END (SHINGLE STYLE) WITH APPROXIMATELY 4” OVERLAP. STAPLE THROUGH OVERLAPPED
AREA, APPROXIMATELY 12” APART.
NOTE: ALL PERMANENT EROSION CONTROL BLANKETS ARE TO BE NORTH AMERICAN GREEN
BIONET C125BN OR APPROVED EQUAL.
EROSION CONTROL MATTING DETAIL
(FOR 3:1 SLOPES OR GREATER)
gy Fu N
6” TOPSOIL PER
PERMANENT VEGETATIVE
COVER NOTES
UNDISTURBED __| | UNDISTURBED
AREA | [AREA
4” CLEAN FILL
TYPICAL LOAM & SEED SECTION DETAIL
(FOR ALL DISTURBED AREAS)
SLOPE STABILIZATION DETAILS
NOT TO SCALE
¢ OF ROAD 6” HIGHER
1” LIP
+
2.5’ FLARE
VARIES
(ULUSTRATED) OR
2.5’ RADIUS
PLAN OVER 8” PROCESSED
GRAVEL BASE
@ OF ROAD R. OR R.O.W. LINE
ya 6” HIGHER
THAN GUTTER
¢ OF ROAD Ff, OR R.O.W. LINE
a 6” HIGHER
THAN GUTTER
1
GUTTER
4
Xo NN BITUMINOUS CONC.
PAVEMENT (CLASS 2)
REGULAI
or
SAG CURVE IN DRIVE
"be —VARIES —~
2” BIT
oq} CONC. a
|+—VARIES —=
CREST CURVE IN DRIVE
DRIVEWAY DETAIL
NOT TO SCALE
6. | 5/7/2025 TOWN COMMENTS .
5. | 4/21/2025 REVISED BREEZEWAY CLA Eng i neers, ine.
4. | 3/28/2025 REVISED HOUSE LOCATION CIVIL « STRUCTURAL « SURVEYING
3. | 8/29/2024 REVISED PER TOWN
2. | 4/18/2024 MISC. REVISIONS Pf 2x: ais street” Norwich, or ooa60
,
1. | 3/18/2024 MISC. REVISIONS 317 Main Street Norwich, CT O6360
No DATE REVISION (860) 886-1966 Fax (860) 886-9165
18 CINDERELLA LANE, aoe iy
QUAKER HILL, CONNECTICUT —————
roj. Engineer
. Date:
Randazzo Residence 12/19/2023
Sheet No.
CONSTRUCTION DETAILS & NOTES 3