SW4210704_Plansheet - Other_20210803

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NOTE: THE CONTRACTOR SHALL OBTAIN A COPY OF THE NPDES
STORM WATER PERMIT ISSUED WITH THE GRADING PERMIT
AND COMPLY WITH ALL CONDITIONS AND REQUIREMENTS
INCLUDING, BUT NOT LIMITED TO, MAINTAINING RAIN GAUGE
AT, THE SITE AT ALL TIMES, AND PROVISION OF INSPECTIONS BOX
TO HOUSE INSPECTIONS LOGS AND PLANS. INSPECTIONS REQUIRED
BY THE NPDES PERMIT MALL BE PROVIDED BY THE OWNER, HOWEVER,
THE CONTRACTOR SHALL PROVIDE FOR MAINTENANCE OF EROSION
CONTROL DEVICES AS RECOMMENDED IN THE MAINTENANCE INSPECTION LOGS.
FLOOD CERTIFICATION
The undersigned hereby certifies to the best of his knowledge and
belief the location of the subject property has been checked against
area HUD/FIA maps and information provided by the Department of
Housing and Urban Development and finds that:
The subject property is located in a SPECIAL FLOOD
HAZARD AREA as determined by HUD/FIA flood map.
The subject property is not located In a SPECIAL FLOOD
HAZARD AREA as determined by HUD/FIA flood map.
The subject property is located in an area which has
not been mapped as to flood areas by HUD/FIA.
SEDIMENT
BASIN 1
SEDIMENT
TRAP
2
SEDIMENT
TRAP
3
SEDIMENT
BASIN 4
SEDIMENT
BASIN 5
SEDIMENT
TRAP
6
C UNDISTURBED AREA
0.40
0.40
0.40
0.40
0.40
0.40
C DISTURBED AREA
0.50
0.50
0.50
0.50
0.50
0.50
I-10
5.8 in hr
5.8
in hr
5.8
in hr
5.8 in hr
5.8 in hr
5.8
in hr
TOTAL AREA
15.80 ac
5.00
ac
5.00
ac
5.77 ac
13.17 ac
1.31
ac
DISTURBED AREA
15.00 ac
4.00
ac
4.80
ac
4.80 ac
13.00 ac
1.30
ac
Q 10
Q=CIA
45.36 cfs
13.92
cfs
14.38
cfs
16.17 cfs '
38.09 cfs
3.79
cfs
REQUIRED VOLUME
V=1800 x DIST. AREA
27000 cf
3600x
14400
cf
3600x
17280
cf
8640 cf
23400 cf
3600x
4680
cf
REQUIRES SURFACE AREA
SA=325*(Q 16
14741 sf
4524
sf
4675
sf
5255 sf
12381 sf
1233
sf
DEPTH
3.6 ft
3.5
ft
3.5
ft
4.3 ft
4.2 ft
3.5
ft
TOP POND DIMENSIONS W x L
86 ft x 172 ft
52 ft x
104
ft
56 ft x
112
ft
52 ft x 104 ft
80 ft x 160 ft
32 ft x
64
ft
BOTTOM POND DIMENSIONS W x L
72 ft x 158 ft
38 ft x
90
ft
42 ft x
98
ft
35 ft x 87 ft
63 ft x 143 ft
18 ft x
50
ft
VOLUME PROVIDED
46937 cf
15449
cf
18179
cf
18122 cf
45886 cf
5159
cf
SURFACE AREA PROVIDED
14792 sf
5408
sf
6272
sf
5408 sf
12800 sf
2048
sf
AVERAGE AREA
13038.1 sf
4414
sf
5194
sf
4214.3 sf
10925 sf
1474
sf
WEIR LENGTH REQUIRED (Q10)
L=Q(10)/(3*h-.5)
where h = 0.5'
48" RISER
36" BARREL
20' SPILLWAY
14
ft
14
ft
30" RISER
18" BARREL
15' SPILLWAY
42" RISER
30" BARREL
20' SPILLWAY
4
ft
SKIMMER SIZE ORIFICE
3" 2.9"
2.5" 2.2
2.5" 2.4"
2" 1.8"
3" 2.7"
1.5" 1.4"
CONSTRUCTION SEQUENCE
1. OBTAIN PLAN APPROVAL FROM NCDEQ AND ALL
APPLICABLE PERMITS FROM OTHER REVIEWING AGENCIES.
2. FLAGGING OF ALL THE CONSTRUCTION/DENUDED LIMITS AND ANY OTHER
BUFFERS SHALL BE PERFORMED PRIOR TO THE PRECONSTRUCTION MEETING. THE
CONTRACTOR IS TO STAY WITHIN THE LIMITS OF CONSTRUCTION. ANY NEED TO
CROSS THIS LIMIT LINE WILL NEED TO BE BROUGHT TO THE ATTENTION OF THE
ENGINEER PRIOR TO ANY CROSS OVER. THE CLEARING LIMITS MUST BE FLAGGED
PRIOR TO THE PRECONSTRUCTION MEETING IN ORDER TO PREVENT ACCIDENTAL
ENTRY OUTSIDE THE CLEARING LIMITS.
3. SET UP PRE -CONSTRUCTION MEETING ON SITE PRIOR TO ANY CONSTRUCTION,
WITH THE OWNER, WITH ALL CONTRACTORS INVOLVED WITH LAND DISTURBANCE
AND THE EROSION CONTROL INSPECTOR.
4. INSTALL STONE CONSTRUCTION ENTRANCE.
5. CLEAR AND GRUB THOSE AREAS NEEDED TO INSTALL EROSION CONTROL MEASURES IN
THE SEQUENCE OUTLINED BELOW. EROSION CONTROL DEVICES ARE TO BE INSTALLED BASED ON
DETAILS PROVIDED UNDER THE APPROVED PLANS. THE PLANS AND DETAILS ARE
BASED ON THE N.C. EROSION AND SEDIMENT PLANNING AND DESIGN MANUAL,
AND RECOGNIZED BEST MANAGEMENT PRACTICES (BMP'S). ENSURE POSITIVE
DRAINAGE TO ALL STRUCTURES ALONG DIVERSION BERMS. TOPSOIL SHALL BE
UTILIZED IN THE SLOPES TO THE EXTENT ALLOWED BY THE GEO-TECH ENGINEER
OF RECORD. REMAINING TOPSOIL SHALL BE STORED ON LOTS CLOSE TO GRADE
AND AS APPROVED BY THE OWNER.
TOPSOIL BERMS MAY ALSO BE UTILIZED IN THE AREAS AND
SIZES APPROVED BY THE OWNER.
7. CLEAR ENOUGH TO INSTALL SEDIMENT TRAPS. INSTALL THE SEDIMENT TRAPS.
CLEAR AREAS REQUIRED FOR THE INSTALLATION OF DIVERSION BERMS. INSTALL DIVERSION BERMS.
8. INSTALL SILT FENCE BELOW SEDIMENT TRAPS AND SEED ALL DEVERSIONS AND MEASURES.
9. CLEAR AND GRUB REMAINDER OF THE SITE AND BEGIN GRADING.
10. AS THE SITE IS BROUGHT TO GRADE, INSTALL STORM DRAINAGE AND IMMEDIATELY
INSTALL INLET PROTECTION MEASURES.
11. STABILIZE THE SITE PER THE TIME TABLES LISTED ON THIS SHEET AS WELL AS SHEET
NCGO1.
12. AS THE ROADWAY IS BROUGHT TO GRADE AND DITCHES ARE CUT IN, INSTALL DITCH
MATTING PER TABLE ON THIS SHEET.
13. ONCE ROADWAY IS BROUGHT TO GRADE, INSTALL UTILITIES. SEE SHEETS 12 AND 14
FOR ADDITIONAL DETAILS AND SEQUENCING OF THE SEWER LINE INSTALLATION
ACROSS THE STREAM. FOLLOWING INSTALLATION OF UTILITIES, REINSTALL MATTING OR
RE -SEED PREVIOUSLY STABILIZED AREAS AS NECESSARY.
14. UPON STABILIZATION OF THE SITE, UPON APPROVAL OF THE EROSION CONTROL
INSPECTOR, DIVERSION BERMS, SILT FENCE, AND DONUT INLET PROTECTION SHALL BE
REMOVED. SEDIMENT TRAPS AND BASINS SHALL BE FILLED. AREAS DISTURBED IN
THIS PROCESS SHALL BE STABILIZED.
15. FOLLOWING STABILIZATION OF SITE, REQUEST CLOSURE OF THE GRADING PERMIT FROM
THE NCDEQ EROSION CONTROL INSPECTOR.
EROSION CONTROL NOTES
1. THE CONTRACTOR SHALL MAINTAIN CLOSE CONTACT WITH THE EROSION
CONTROL INSPECTOR. ADDITIONAL EROSION CONTROL MEASURES MAY BE
REQUIRED THAT ARE NOT INDICATED ON THE PLANS BY THE EROSION CONTROL
INSPECTOR. IT IS THE CONTRACTOR'S RESPONSIBILITY TO MAINTAIN EROSION
ONSITE, REGARDLESS OF THE MEASURES REQUIRED. ANY CHANGE IN THE
EROSION CONTROL MEASURES AND/OR GRADING SHALL BE CALLED TO THE
ATTENTION OF THE ENGINEER AND THE EROSION CONTROL INSPECTOR.
ALL MEASURES MUST REMAIN OPERABLE UNTIL THE SITE IS STABILIZED.
2. EROSION CONTROL DEVICES SHALL BE DILIGENTLY MAINTAINED THROUGHOUT
CONSTRUCTION. DEVICES SHALL BE INSPECTED AND REPAIRED AFTER EACH
SIGNIFICANT RAINFALL.
3. SEDIMENT TRAPS/BASINS ARE TO BE CLEANED OUT WHEN THE BASIN IS NO
MORE THAN HALF FULL. THEY SHALL BE CLEARED OF ALL SILT AND RESHAPED
TO THE ORIGINAL DESIGN PARAMETER.
4. GRASS OR OTHERWISE STABILIZE ALL AREAS AS THEY ARE BROUGHT UP TO
GRADE. STABILIZE WITH GROUND COVER. (SEE G.C. PLAN NOTES FOR
STABILIZATION REQUIREMENTS.)
5. STABILIZE WITH GROUND COVER ALL SLOPES, CUT OF FILL, WITHIN THE
TIMEFRAME LISTED ON THE ADJOINING TABLE.
6. ALL EROSION CONTROL DEVICES ARE TO REMAIN IN THE PLACE UNTIL THE
SITE IS PROPERLY STABILIZED WITH GROUND COVER. ALL UPSTREAM AREAS
MUST BE STABILIZED PRIOR TO REMOVAL OF EROSION CONTROL DEVICES. ONCE
THIS OCCURS, REMOVE SEDIMENT GRADE TO FINAL ELEVATIONS AND STABILIZE.
7. REMOVE EROSION CONTROL DEVICES ONLY UPON RECEIPT OF APPROVAL
FROM EROSION CONTROL INSPECTOR.
8. IF FILL MATERIALS ARE TO BE BROUGHT ONTO THIS PROJECT OR WASTE
MATERIALS ARE TO BE TAKEN FROM THIS PROJECT, THIS INFORMATION MUST BE
DISCLOSED AND SHOWN ON THE EROSION CONTROL AND GRADING PLAN.
BORROW AREAS AND DUMP SITES ARE CONSIDERED TO BE PART OF THIS
PROJECT AND THE OWNER IS RESPONSIBLE FOR STABILIZATION AND EROSION
CONTROL MEASURES AT THESE SITES.
9. THE CONTRACTOR SHALL BE RESPONSIBLE FOR ALL SITE EROSION CONTROL
MAINTENANCE DURING CONSTRUCTION. IN ADDITION, THE CONTRACTOR SHALL BE
RESPONSIBLE FOR KEEPING ALL ITEMS/RECORDS REQUIRED BY THE NATIONAL
POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) PERMIT.
10. AS OF MARCH 10, 2003, ALL CONSTRUCTION SITES ONE (1) ACRE OR MORE,
REQUIRES A NPDES PERMIT. THEREFORE:
-WRITTEN DOCUMENTATION OF A DEVIATION FROM APPROVED PLAN MUST
BE NOTED ON THE APPROVED PLANS.
-WRITTEN DOCUMENTATION OF AN EMERGENCY SITUATION WHERE SEDIMENT
HAS BEEN DISCHARGED OFF SITE MUST BE RECORDED. ALSO, CONTRACTOR'S
ACTIONS TO REPAIR AND RETURN AREA TO PRE -STORM CONDITION MUST BE
RECORDED.
-THE PERMITTEE SHALL INSPECT ALL EROSION AND SEDIMENTATION
CONTROL FACILITIES EVERY SEVEN DAYS AND WITHIN 24 HOURS OF A 1 INCH
RAINFALL. FINDINGS SHALL BE RECORDED AND PRESENTED UPON INSPECTOR'S
REQUEST.
-THE CONTRACTOR SHALL PROVIDE RAIN -RECORDING DEVICE AND RECORD
EACH RAINFALL.
-ANY FAILURES THAT CAUSE VISIBLE SEDIMENTATION TO LEAVE THE
APPROVED DISTURBED LIMITS SHALL BE CORRECTED IMMEDIATELY AND
DOCUMENTED.
-A COPY OF THE NPDES PERMIT SHOULD BE KEPT ON SITE FOR
REFERENCE.
11. THE CONTRACTOR SHALL HAVE ON SITE THE MEANS TO REMOVE ANY
SEDIMENT TRACKED ONTO THE STREET. IF CONDITIONS REQUIRE, EQUIPMENT
MUST BE ON SITE TO WASH TIRES OF VEHICLES PRIOR TO ENTERING STREET.
RIP -RAP
APRONS
LENGTH
FT
WIDTH
FT
DEPTH
FT
CLASS
TEMP 1-2
50
9
2.0
1
FES 2-1 A
16
6
2.0
1
FES 4-1
20
6
3.0
1 2
FES 5-1
20
8
2.0
1 1
FES 6-1
12
5
2.0
1 1
FROM
TOP/THROAT
ELEV
INV
OUT
TO
INV
IN
I AREA
SUB TOTAL
C
Tc
I10
Q10=CIA
CFS
Q10(total)
PIPE
HW/D
PIPE
DIAM. IN
LENGTH
L.F.
SLOPE
1-13
793.54
789.72
1-12
789.22
1.17
1.2
0.70
5
5.8
1 4.8
4.8
1.1
15
42.00
1.19%
1-12
793.54
788.87
1-10
81.07
1.41
2a__
0.70
5
5.8
5.7
10.5
1.5
18
260.00
3.00%
1-11
785.32
781.57
1-10
781.07
0.86
0.9
170
5
5.8
3.5
3.5
1.0
15
42.00
1.19%
1-10
785.32
780.57
1-8
766.80
1.79
5.2
0.70
5
5.8
7.3
21.2
1.5
24
335.00
4.11 %
1-9
770.10
766.70
1-8
766.17
0.63
0.6
0.70
5
5.8
2.6
6
1.1
15
44.33
1. 0%
1-8
771.
765.17
1-4
762.35
0.56
.4
0.7
5
5.
2.3
26.1
1.
30
70.00
4.03%
1-7A
787.89
783.52
1-7
783.01
1.4
1.4
.70
5
5.8
5.8
1.3
15
42.13
1. 1%
1-7
787.71
782.81
1-
75.78
0.97
4
0.70
5
5.8
3.9
.7
1.418
130.19
.40%
-6
780.02
775.28
1-5
773.38
0.39
.8
0.70
5
5.8
.6
11.3
1.0
24
49.90
3.81%
1-5
778.43
773.18
1-4
762.85
0.70
3.5
0.70
5
5.8
2.8
14.1
1.1
24
108.77
.50%
1-4
767.86
761.85
1-3
743.10
0.37
10.3
0.70
5
5.8
1 1.5
41.7
1.1
36
250.00
7.50%
1-3
748.61
742.60
1-2
742.18
0.10
10.4
0.70
5
5.8
0.4
42.1
1.1
36
42.00
1.00%
1-2
748.61
741.98
1-1
730.24
0.78
11.2
0.70
5
5.8
3.2
45.3
1.3
36
168.20
6.98%
1-1
735.50
728.94
EX B
722.45
0.44
11.6
0.70
5
5.8
1.8
47.1
1.3
36
68.35
9.50%
EX B
728.70
720.45
EX A
717.48
9.26
20.9
0.50
5
5.8
26.9
73.9
2.4
36
174.00
1.71 %
EX A
724.30
717.45
42 OUT
716.50
1.12
22.0
0.70
5
5.8
4.5
78.5
1.5
42
97.00
0.98%
n� n� 70 r,
2-6
757.50
754.51
2-5
751.65
0.76
0.8
1 0.70
5
5.8
3.1
3.1
0.9
15
92.17
3.10%
2-5
755.79
750.65
2-4
749.24
0.37
1.1
0.70
5
5.8
1.5
4.6
1.1
15
54.71
2.58%
2-4
753.45
749.04
2-2
736.41
0.36
1.5
0.70
5
5.8
1.5
6.0
1.5
15
214.15
5.90%
2-3
740.51
736.91
2-2
736.41
0.92
0.9
0.70
5
5.8
3.7
3.7
1.0
15
42.00
1.19%
2-2
740.51
736.21
2-1
735.17
0.61
3.0
0.70
5
5.8
2.5
12.3
1.8
18
104.31
1.00%
2-1
1 741.00
1 734.97
2-1A
733.18
0.00
1 3:0
0.55
5
5.8
0.0
1 12.3
1.3
18
179.00
zn7 17 Z
4-7
788.33
784.73
4-6
783.40
1.07
1.1
0.70
5
5.8
4.3
4.3
1.1
15
44.17
3.01%
4-6
787.59
783.20
4-4
773.50
1.08
2.2
0.70
5
5.8
4.4
8.7
1.3
18
181.33
5.35%
4-5
777.79
774.01
4-4
773.50
0.61
0.6
0.70
5
5.8
2.5
2.5
0.8
15
42.75
1.19%
4-4
777.79
773.00
4-3
767.82
0.80
3.6
0.70
5
5.8
3.2
14.5
1.1
24
103.48
5.01%
4-3
772.60
767.
4-2
1 766.44
0.9
45
0.70
5
5.8
.9
.4
1.3
24
117.7
1.00%
4-2
776.00
763.63
4-1
742.00
0.47
5.0
0.70
5
5.8
1.9
1 20.3
1 1.5
1 24
108.13
1 20.00%
A Oh 'Jn _J;
5-9
793.71
789.30
5-8
787.40
1.79
1.8
0.70
5
1 5.8
1 7.3
7.3
1.6M30228.68
3.80%
5-8
791.41
786.90
5-6
776.58
1.33
3.1
0.70
5
5.8
5.4
12.7
1.14.80%
5-7*
781.59
777.59
5-6
777.08
2.01
2.0
0.70
5
5.8
8.2
8.2'
1.21.21
%
5-6
781.59
776.08
5-4
768.20
0.49
5.6
0.70
5
5.8
2.0
22.8
1.1
3.45%
5-5*
773.49
769.50
5-4
769.00
2.61
2.6
0.70
5
5.8
10.6
10.6
1.51.19%
5-4
773.49
768.00
5-3
766.85
1.18
9.4
0.70
5
5.8
4.8
38.2
1.61.00%
5-3
777.00
764.96
1 5-2
1 753.50
1 0.16
9.6
0.70
1 5
1 5.8
1 0.6
38.9
1.6
30
76.43
1 14.99%
5-2
753.10
5-1
752.00
0.00
9.R
0.70
5
1 5.8
0.0
38.9
1.6
30
27.52
1 4.00%
*DOUBLE INLET 9.57 38.9
6-5
774.65
771.10
6-3
768.67
0.38
4
0
5
5.8
1.5
1 1.5
0.5
15
60.81
4.0 %
6-4
769.85
766.0
6-3
765.17
0.98
0.70
5
5.8
4.0
4.0
0.
1
8 .45
0.99%
6-3
773.20
764.97
6-2
763.67
0.45
1.8
0.7
5
5,8
1.8
73
1.0
18
0
1.0
6-2
775.00
763.47
6-1
750.00
0.44
2.
0.7
5
5.8
1.8
9.1
1.4
18
94.87
14. 0%
NOTE:
NOTE: C.M.P. = CORRUGATED METAL PIPE
OWNER SHALL PROVIDE SOILS ENGINEER TO 8' TOP WIDTH
APPROVE SUBGRADE AND KEYWAY PRIOR TO
ANY FILL MATERIAL BEING PLACED. ALL EL. = 740.0
FILL MATERIAL AND COMPACTION WILL ALSO TRASH RACK
BE MONITORED BY SOILS ENGINEER TO BE TOP OF RISER
PROVIDED BY OWNER.AN
EL. = 737.5
60"x60" ANTI
SEEP COLLAR
EMER. SPILL.
EL. = 738.5
C.M.P -J 1 11
TEMP. 3 FAIRCLOTH SKIMMER W/ 2.9 ORIFICE RISE 2.5 2.5
" W/ 4" SCHD 40 PVC BARREL 4"
FLEXIBLE HOSE AND 4" STEEL NIPPLE
6" C.A.P. STUBBED OUT OF 48 L.F. 36" CMP ® 1.0%
RISER 12" AT ELEV 733.9 WITH
REMOVABLE 6" PLATE
WITH 4" THREADED HOLE TO :�`,: `: FLANGED JDINT
RECEIVE THE 4" NIPPLE WITH GASKET
(2) #8 REBAR PREFABRICATED BARREL TO RISER
BOTTOM EL. (WATERTIGHT CONNECTION)
732.9 INV. EL = 733.9
6.5'(W)x6.5'(W)x2.0'(H)=84 CF NOT TO SCALE
3000 PSI CONCRETE POURED IN
AND AROUND BASE SECTION
SEDIMENT BASIN No. 1
INV OUT
EL. = 733.4
NOTE:
NOTE: C.M.P. = CORRUGATED METAL PIPE
OWNER SHALL PROVIDE SOILS ENGINEER TO 8' TOP WIDTH
APPROVE SUBGRADE AND KEYWAY PRIOR TO
ANY FILL MATERIAL BEING PLACED. ALL EL. = 728.3
FILL MATERIAL AND COMPACTION WILL ALSO TRASH RACK EMER. SPILL.
BE MONITORED BY SOILS ENGINEER TO BE PROVIDED BY OWNER. TOP OF RISER EL = 726.8
EL. = 725.8
66"x66" ANTI
30" SEEP COLLAR
TEMP. 2" FAIRCLOTH SKIMMER W/ .8" ORIFICE RISE 2.5 1 1 5
W/ 4" SCHD 40 PVC BARREL 4"
FLEXIBLE HOSE AND 4" STEEL NIPPLE
6" C.A.P. STUBBED OUT OF 45 L.F. 18" CMP @ 1.1%
RISER 12" AT ELEV 721.5 WITH
REMOVABLE 6" PLATE INV OUT
WITH 4" THREADED HOLE TO ''y ": FLANGED OINT EL. = 721.0
RECEIVE THE 4" NIPPLE WITH GAS ET
(2) #8 REBAR PREFABRICATED BARREL TO RISER
BOTTOM EL. (WATERTIGHT CONNECTION)
720.5 INV. EL = 721.5
4'(W)x4'(W)x2'(H)=32 CF NOT TO SCALE
3000 PSI CONCRETE POURED IN
AND AROUND BASE SECTION
SEDIMENT BASIN No. 4
2.25 y.-I
NEW STABILIZATION TIME FRAMES
SITE AREA DESCRIPTION
STABILIZATION
TIME FRAME EXCEPTIONS
PERIMETER DIKES, SWALES, DITCHES AND SLOPES
7 DAYS
NONE
HIGH QUALITY WATER (HWQ) ZONES
7 DAYS
NONE
SLOPES STEEPER THAN 3:1
7 DAYS
IF SLOPES ARE 10' OR LESS IN LENGTH,
AND ARE NOT STEEPER THAN 2: 1.
14 DAYS ARE ALLOWED.
SLOPES 3:1 OR FLATTER
14 DAYS
7 DAYS FOR SLOPES GREATER THAN
50' IN LENGTH
ALL OTHER AREAS WITH SLOPES FLATTER THAN 4:1
14 DAYS
NONE, EXCEPT FOR PERIMETERS AND HOW ZONES
**BANDED GASKETS ARE ALLOWED IN LIEU
OF FLANGED JOINT FOR ALUMINIZED STEEL
PIPE. MINIMUM BAND WITH OF 24" WITH
STRAP AND ANCHOR TO CONCRETE BASE.
NOTE:
OWNER SHALL PROVIDE SOILS ENGINEER TO
APPROVE SUBGRADE AND KEYWAY PRIOR TO
ANY FILL MATERIAL BEING PLACED. ALL
FILL MATERIAL AND COMPACTION WILL ALSO
BE MONITORED BY SOILS ENGINEER TO BE
PROVIDED BY OWNER.
TEMP. 3" FAIRCLOTH SKIMMER W/ 2.7" ORIFICE
W/ 4" SCHD 40 PVC BARREL 4"
FLEXIBLE HOSE AND 4" STEEL NIPPLE
NOTE:
C.M.P. = CORRUGATED METAL PIPE
8' TOP WIDTH
EL. = 752.2
TRASH RACK
TOP OF RISER
EL. = 749.7
60"x6O" ANTI
42��
SEEP COLLAR
C.M.P
RISE
-J 1
2.5
I
4" C.A.P. STUBBED OUT OF
RISER 12" AT ELEV 745.5 WITH
REMOVABLE 6" PLATE
EMER. SPILL.
EL. = 750.7
42 L.F. 30"1 CMP ® 1.2%
WITH 4" THREADED HOLE TO f :„ �.,;1"',- 5�_ FLANGED ..JOINT
RECEIVE THE 4" NIPPLE WITH GASI9ET
(2) #8 REBAR PREFABRICATED BARREL TO RISER
BOTTOM EL. (WATERTIGHT CONNECTION)
744.5 INV. EL = 745.5
5.7'(W)x5.7'(W)x2.0'(H)=65 CF NOT TO SCALE
3000 PSI CONCRETE POURED IN
AND AROUND BASE SECTION
SEDIMENT BASIN No. 5
1L
2.5
INV OUT
EL. = 745.0
SWALE
NO.
AREA
I
10
C
Q
10
BOTTOM
WIDTH
IT
SS
RT
SS
SLOPE
LINDIG
n
DEPTH
VEL
SHEAR
STRESS
WP
A
MATERIAL
1-13
1.17
5.8
0.7
4.4
1.0
3: 1
3 : 1
2.0%
EXCEL R-1
0.066
0.55
1.99
0.69
4.5
2.2
1-13
1.17
5.8
0.7
4.4
1.0
3: 1
3: 1
2.0%
VEGETATED
0.035
0.33
3.42
0.41
3.1
1.3-
1-12
1.41
5.8
0.7
5.3
1.0
3 : 1
3 : 1
2.0%
EXCEL R-1
0.066
0.65
2.03
0.81
5.1
2.6
1-12
1.41
5.8
0.7
5.3
1.0
3: 1
3: 1
2.0%
VEGETATED
0.035
0.38
3.52
0.47
3.4
1.5
1-11
0.86
5.8
0.7
3.2
1.0
3 : 1
3 : 1
2.6%
EXCEL R-1
0.066
0.38
2.13
0.62
3.4
1.5
1-11
0.86
5.8
0.7
3.2
1.0
3: 1
3: 1
2.6%
VEGETATED
0.035
0.23
3.57
0.37
2.5
0.9
1-10A
1.20
5.8
0.7
4.5
1.0
3 : 1
3 : 1
2.6%
EXCEL R-1
0.066
0.51
2.24
0.83
4.2
2.0
1-10A
1.20
5.8
0.71
4.5
1.0
3: 1
3: 1
2.6% IVEGETATED
0.0351
0.30
3.81
0.49
2.9
1.2
1-10B
1.79 1
5.8
0.7
6.7
1.0
3 : 1
3 : 1
2.6%
EXCEL S-2
0.066
0.72
2.35
1.17
5.6
2.9
1-10B
1.79
5.8
0.7
6.7
1.0
3: 1
3: 1
2.6%
VEGETATED
0.035
0.42
4.08
0.67
3.6
1.7
1-9A
0.39
5.8
0.7
1.5
1.0
3 : 1
3 : 1
4.8%
EXCEL R-1
0.066
0.16
2.30
0.48
2.0
0.6
1-98
0.39
5.8 1
0.7
1.5
1.0
3 : 1
3 : 11
4.8%
VEGETATED
0.035
0.10
3.65
0.30
1.6
0.4
1-9B
0.63
5.8
0.7
2.4
1.0
3 : 1
3 : 1
4.8%
EXCEL S-2
0.066
0.23
2.57
0.69
2.5
0.9
1-9B
0.63
5.8
0.7
2.4
1.0
3: 1
3: 1
4.8%
VEGETATED
0.035
0.14
4.15
0.42
1.9
0.6
1-8.1
0.14
5.8
0.7
0.5
1.0
3 : 11
3 : 1
7.4%
EXCEL R-1
0.066
0.07
1.99
0.30
1.4
0.3
1-8.1
0.14
5.8
0.7
0.5
1.0
3: 11
3: 1
7.4%
VEGETATED
0.035
0.04
3.05
0.20
1.3
0.2
1-8.2
0.42 1
5.8
0.7
1.6
1.0
3 : 1
3 : 1
4.8%
EXCEL R-1
0.066
0.17
2.35
0.51
2.1
0.7
1-8.2
0.42 1
5.8
0.7
1.6
1.0
3: 1
3: 11
4.8%
VEGETATED
0.035
0.11
3.72
0.31
1.7
0.4
1-7A-A
0.40 1
5.8
0.7
1.5
1.0
3 : 1
3 : 11
5.3%
EXCEL R-1
0.066
0.16
2.40
0.52
2.0
0.6
1-7A-A
0.40 1
5.8
0.7
1.5
1.0
3: 1
3: 11
5.3%
VEGETATED
0.035
0.10
3.84
0.33
1.6
0.4
1-78-8
1.42
5.8
0.7
5.4
1.0
3 : 1
3 : 1
5.3%
EXCEL S-2
0.066
0.43
3.11
1.42
3.7
1.7
1-7A-B
1.42
5.8
0.7
5.4
1.0
3: 1
3: 1
5.3%
VEGETATED
0.035
0.26
5.26
0.86
2.6
1.0
1-7A
0.40
5.8
0.7
1.5
1.0
3 : 1
3 : 1
5.3%
EXCEL R-1
0.066
0.16
2.40
0.52
2.0
0.6
1-7A
0.40
5.8
0.7
1.5
1.0
3: 11
3: 1
5.3%
VEGETATED
0.035
0.10
3.84
0.33
1.6
0.4
1-7B
0.97
5.8
0.7 1
3.7
1.0
3 : 11
3 : 1
5.3%
EXCEL S-2
0.066
0.32
2.92
1.04
3.0
1.3
1-7B
0.97
5.8
0.7
1 3.7
1.0
3: 1
3: 1
5.3%
VEGETATED
0.035
0.19
4.82
0.63
2.2
0.8
1-6A
0.32
5.8
0.7
1.2
1.0
3 : 1
3 : 1
6.1%
EXCEL R-1
0.066
0.13
2.38
0.48
1.8
0.5
1-6A
0.32
5.8
0.7
1.2
1.0
3: 1
3: 1
6.1%
VEGETATED
0.035
0.08
3.74
0.30
1.5
0.3
1-6B
0.39
5.8
0.7
1.5
1.0
3 : 1
3 : 11
6.1%
EXCEL S-2
0.066
0.15
2.54
0.57
1.9
0.6
1-6B
0.39
5.8
0.7
1.5
1.0
3: 1
3: 1
6.1%
VEGETATED
0.035
0.10
4.03
1 0.36
1.6
1 0.4
1-5A
0.40
5.8
0.7
1.5
1.0
3 : 1
3 : 1
5.0%
EXCEL R-1
0.0661
0.16
2.35
0.50
2.0
0.6
1-5A
0.40
5.8
0.7
1.5
1.0
3: 1
3: 1
5.0%
VEGETATED
0.035
0.10
3.73
0.31
1.6
0.4
1-5B
0.70 1
5.8
0.7
2.6
1.0
3 : 1
3 : 1
5.0%
EXCEL S-2
0.066
0.25
2.68
0.78
2.6
1.0
1-58
0.70
5.8
0.7
2.6
1.0
3: 11
3: 1
5.0%
VEGETATED
0.035
0.15
4.34
0.47
1.9
0.6
1-4A
0.20
5.81
0.7
0.8
1.0
3 : 11
3 : 1
10.0%
EXCEL R-1
0.066
0.08
2.47
0.47
1.5
0.3
1-4A
0.20
5.8
1 0.7
0.8
1.0
3: 11
3: 1
10.0%
IVEGETATED
0.035
0.05
1 3.83
0.31
1.3
0.2
1-4B
0.37
5.8
1,0.7
1.4
1.0
3 : 11
3 : 1
10.0%
EXCEL S-2
0.066
0.12
3.00
0.75
1.8
0.5
1-413
0.37
5.8
0.7
1.4
1.0
3: 11
3: 1
10.0%
VEGETATED
0.035
0.08
4.66
0.47
1.5
0.3
1-3
0.10
5.8
0.7
0.4
1.0
3 : 1
3 : 1
7.87
EXCEL R-1
0.066
0.06
1.88
0.27
1.3
0.2
1-3
0.10
5.8
0.7
0.4
1.0
3 : 1
3 : 1
7.8%
VEGETATED
0.035
0.04
2.81
0.17
1.2
0.1
1-2A
0.24
5.8
0.7
0.9
1.0
3 : 1
3 : 11
7.8%
EXCEL R-1
0.066
0.10
2.42
0.46
1.6
0.4
1-28
0.24
5.8
0.7
0.9
1 1.0
3 : 1
3 : 1
7.8%
VEGETATED
0.035
0.06
3.71
0.29
1.4
0.2
1-2B
0.78
5.8
0.7
2.9
1 1.0
3 : 1
3 : 1
7.8%
EXCEL S-2
0.066
0.23
3.26
1.10
2.4
0.9
1-2B
0.78
5.8
0.7
2.9
1.0
3: 11
3: 1
7.8%
VEGETATED
0.035
0.14
5.29
0.68
1.9
0.6
1-1A
0.24
5.8
0.7
0.9
1.0
3 : 1
3 : 1
8.2%
EXCEL R-1
0.066
0.10
2.48
0.49
1.6
0.4
1-1A
0.24
5.8
0.7
0.9
1.0
3: 1
3: 1
8.27.
VEGETATED
0.035
0.06
3.80
0.31
1.4
0.2
1-1B
0.44
5.8
0.7
1.7
1.0
3 : 1
3 : 11
8.2%
EXCEL S-2
0.066
0.15
2.91
0.74
1.9
1 0.6
1-1B
0.44
5.8
0.7
1.7
1.0
3: 1
3: 1
8.2%
VEGETATED
0.035
0.09
4.57
0.46
1.6
0.4
EX B
0.15
5.8
0.7
0.6
1 1.0
3 : 1
3 : 1
9.5%
EXCEL R-1
0.066
0.06
2.17
0.36
1.4
0.2
EX B
0.15
5.8
0.7
0.6
1 1.0
3 : 1
3 ; 1
9.5%
VEGETATED
0.035
0.04
3.33
0.24
1.3
0.2
EX A
0.50
5.8
0.7
1.9
1.0
3 : 1
3 : 1
1.5%
1EXCEL R-1
0.066
0.31
1.54
0.29
2.9
1.2
EX A
0.50
5.8
0.7
1.9
1.0
3 : 1
3 : 1
1.5%
VEGETATED
0.035
0.19
2.54
0.17
2.2
0.7
2-6
0.76
5.8
0.7
2.9
1.0
3 : 1
3 : 1
3.2%
EXCEL R-1
0.066
0.32
2.28
0.64
3.0
1.3
2-6
0.76
5.8
0.7
2.9
1.0
3 : 1
3 : 11
3.2%
VEGETATED
0.035
0.19
3.75
0.38
2.2
0.8
2-5
0.37
5.8
0.7
1.4
1.0
3 : 1
3 : 11
6.3%
EXCEL R-1
0.066
0.14
2.52
0.55
1.9
0.6
2-5
0.37
5.8
0.7
1.4
1.0
3: 1
3: 1
6.3%
IVEGETATED
0.035
0.09
3.97
0.35
1.6
0.4
2-4A
0.29
5.8
0.7
1.1
1.0
3 : 1
3 : 1
7.4%
EXCEL R-1
0.066
0.11
2.50
0.51
1.7
0.4
2-4A
0.29
5.8
0.7
1.1
1.0
3 ; 1
3 : 1
7.4%
VEGETATED
0.035
0.07
3.88
0.32
1.4
0.3
2-46
0.36
5.8
0.7
1.4
1.0
3 : 1
3 : 1
7.4%
EXCEL S-2
0.066
0.13
2.66
0.60
1.8
0.5
2-4B
0.36
5.8
0.7
1.4
1.0
3: 1
3: 1
7.4%
VEGETATED
0.035
0.08
4.17
0.38
1.5
0.3
2-3A
0.40
5.8
0.7
1.5
1.0
3 : 1
3 : 1
5.3%
EXCEL R-1
0.066
0.16
2.40
0.51
2.0
0.6
2-3A
0.40
5.8
0.7
1.5
1.0
3: 1
3: 1
5.3%
VEGETATED
0.035
0.10
3.84
0.33
1.6
0.4
2-3B
0.92
5.8
0.7
3.5
1.0
3 : 1
3 : 1
5.3%
EXCEL S-2
0.066
0.30
2.89
0.99
2.9
1.2
2-3B
0.92
5.8
0.7
3.5
1.0
3: 1
3: 1
5.3%
VEGETATED
0.035
0.19
4.78
0.61
2.2
0.7
2-2A
0.40
5.8
0.7
1.5
1.0
3 : 1
3 : 1
5.3.
EXCEL R-1
0.066
0.16
2.40
0.52
2.0
0.6
2-2A
0.40
5.8
1 0.7
1.5
1.0
3: 1
3: 11
5.3%
VEGETATED
0.035
0.10
3.84
0.33
1.6
0.4
2-2B
0.61
5.8
0.7
2.3
1.0
3 : 1
3 : 11
5.3%
1EXCEL S-2
0.066
0.22
2.67
0.73
2.4
0.9
2-2B
0.61
5.8
0.7
2.3
1.0
3: 1
3: 1
5.3%
VEGETATED
0.035
0.14
4.31
0.45
1.9
0.5
4-7A
0.40
5.8
0.7
1.5
1.0
3 : 11
3 : 11
5.2%
EXCEL R-1
0.066
0.16
2.40
0.52
2.0
0.6
4-78
0.40
5.81
0.7
1.5
1.0
3: 1
3: 11
5.2%
VEGETATED
0.035
0.10
3.80
0.32
1.6
0.4
4-7B
1.07
5.8
1 0.7
4.0
1.0
3 : 1
3 : 11
5.2%
EXCEL S-2
0.066
0.34
2.94
1.10
3.2
1.4
4-7B
1.07
5.8
10.7
4.0
1.0
3: 1
3: 11
5.2%
VEGETATED
0.035
0.21
4.89
0.67
2.3
0.8
4-6A
0.40
5.8
1 0.7
1.5
1.0
3 : 1
3 : 11
5.2%
EXCEL R-1
0.066
0.16
2.40
0.52
2.0
0.6
4-6A
0.40
5.8
1 0.7
1.5
1.0
3: 1
3: 11
5.2%
VEGETATED
0.035
0.10
3.80
0.32
1.6
0.4
4-6B
1.08
5.8
10.7
4.1
1.0
3 : 1
3 : 11
5.2%
EXCEL S-2
0.066
0.35
2.95
1.12
3.2
1.4
4-613
1.08
5.8
1 0.7
4.1
1.0
3: 1
3: 1
5.2%
VEGETATED
0.035
0.21
4.92
0.68
2.3
0.8
4-5A
0.40
5.8
1 0.7
1.5
1.0
3 : 1
3 : 1
5.2%
EXCEL R-1
0.066
0.16
2.40
0.52
2.0
0.6
4-5A
0.40
5.810.7
1.5
1.0
3: 1
3: 1
5.2%
VEGETATED
0.035
0.10
1 3.80
0.32
1.6
0.4
4-5B
0.61
5.8
1 0.7
2.3
1.0
3 : 1
3 : 1
5.2%
EXCEL S-2
0.066
0.22
1 2.64
0.71
2.4
0.9
4-5B
0.61
5.81
0.7
2.3
1.0
3: 1
3 1
5.2%
IVEGETATED
0.035
0.14
1 4.27
0.44
1.9
0.5
4-4A
0.40
5.8
0.7
1.5
1.0
3 : 11
3 : 1
5.2%
EXCEL R-1
0.066
0.16
2.40
0.52
2.0
0.6
4-4A
0.40
5.8
0.7
1.5
1.0
3: 1
3: 1
5.2%
VEGETATED
0.035
0.10
3.80
0.32
1.6
0.4
4-4B
0.80
5.8
0.7
3.0
1.0
3 : 1
3 : 1
5.2%
EXCEL S-2
0.066
0.28
2.80
0.89
2.7
1.1
4-413
0.80
5.8
0.7
3.0
1.0
3: 1
3: 1
5.2%
VEGETATED
0.035
0.17
4.57
0.54
2.0
0.7
4-3.1A
0.33
5.8
0.7
1.2
1 1.0
3 : 1
3 : 1
6.4%
EXCEL R-1
0.066
0.13
2.48
0.52
1.8
0.5
4-3.1A
0.33
5.81
0.7
1.2
1 1.0
3: 1
3: 1
6.4%
IVEGETATED
0.035
0.08
3.83
0.32
1.5
0.3
4-3.1B
0.46
5.8
10.7
1.7
1 1.0
3 : 1
3 : 1
6.4%
1EXCEL S-2
0.066
0.16
2.67
0.64
2.0
0.6
4-3.1B
0.46
5.8
0.7
1.7
1.0
3: 1
3: 1
6.4%
VEGETATED
0.035
0.10
4.28
0.42
1.7
0.4
4-3.2
0.50
5.8
0.7
1.9
1.0
3 : 1
3 : 1
3.6%
EXCEL R-1
0.066
0.22
2.19
0.48
2.4
0.9
4-3.2
0.50
5.8
0.7
1.9
1.0
3: 1
3: 1
3.6%
VEGETATED
0.035
0.14
3.55
0.30
1.9
0.5
4-2
0.47
5.8
0.7
1.8
1.0
3 : 1
3 : 1
2.0%
EXCEL R-1
0.066
0.26
1.71
0.32
2.6
1.0
4-2
0.47
5.8
0.7
1.8
1.0
3: 1
3: 1
2.0%
VEGETATED
0.035
0.16
2.81
0.20
2.0
0.6
5-9.1
0.30
5.8
0.7
1.1
1.0
3 : 1
3 : 1
3.7%
EXCEL R-1
0.066
0.15
1.96
0.33
1.9
0.6
5-9.1
0.30
5.8
0.7
1.1
1.0
3: 1
3: 11
3.7%
VEGETATED
0.035
0.09
3.10
0.21
1.6
0.4
5-9.2
1.49
5.8
0.7
5.6
1.0
3 : 1
3 : 1
1.2%
EXCEL R-1
0.066
0.86
1.63
0.64
6.4
3.4
5-9.2
1.49
5.8
0.7
5.6
1.0
3: 1
3: 1
1.2%
VEGETATED
0.0351
0.50
2.86
1 0.37
4.1
2.0.
5-8
1.33
5.8
0.7
5.0
1.0
3 : 1
3 : 1
1.2%
EXCEL R-1
0.0661
0.78
1.61
0.58
5.9
3.1
5-8
1.33
5.8
0.7
5.0
1.0
3: 1
3: 1
1.2%
VEGETATED
0.035
0.45
2.81
0.33
3.8
1.8
5-7A
0.55
5.8
0.7
2.1
1.0
3 : 11
3 : 1
4.6%
EXCEL R-1
0.066
0.21
2.45
0.60
2.3
0.8
5-7A
0.55
5.8
0.7
2.1
1.0
3: 1
3: 1
4.6%
IVEGETATED
0.035
0.13
3.96
0.37
1.8
0.5
5-7B
2.01
5.8
0.7
7.6
1.0
3 : 1
3 : 1
4.6%
1EXCEL S-2
0.066
0.62
3.07
1.78
4.9
2.5
5-7B
2.01
5.8
0.7
7.6
1.0
3: 1
3: 1
4.6%
IVEGETATED
0.035
0.36
5.28
1.03
3.3
1.4
5-6
0.49
5.8
0.7
1.8
1.0
3 : 1
3 : 1
4.6%
EXCEL R-1
0.066
0.20
2.40
0.56
2.2
0.8
5-6
0.49
5.8
0.7
1.8
1.0
3: 1
3: 1
4.6%
VEGETATED
0.035
0.12
3.84
0.34
1.8
0.5
5-5.1
1.25
5.8
0.7
4.7
1.0
3: 11
3: 1
1.9%
EXCEL R-1
0.066
0.60
1.96
0.71
4.8
2.4
5-5.1
1.25
5.8
0.7
4.7
1.0
3: 1
3: 1
1.9%
VEGETATED
0.035
0.35
3.37
0.41
3.2
1.4
5-5.2A
1.00
5.8
0.7
3.8
1.0
3 : 1
3 : 11
2.8%
EXCEL R-1
0.066
0.42
2.25
1 0.73
3.7
1.7
5-5.2A
1.00
5.8
0.7
3.8
1.0
3: 1
3: 1
2.8%
VEGETATED
0.035
0.25
3.79
0.44
2.6
1.0
5-5.2B
1.36
5.8
0.7
5.1
1.0
3 : 1
3 : 1
2.8%
EXCEL S-2
0.066
0.55
2.35
0.96
4.5
2.2
5-5.2B
1.36
5.8
0.7
5.1
1.0
3 : 1
3 : 1
2.8%
VEGETATED
0.035
0.32
4.02
0.56
3.0
1.3
5-4.1
0.50
5.8
0.7
1.9
1.0
3 : 1
3 : 1
1.9%
EXCEL R-1
0.066
0.28
1.70
0.33
2.8
1.1
5-4.1
0.50
5.8
0.7
1.9
1.0
3: 1
3: 1
1.9%
VEGETATED
0.035
0.17
2.79
0.20
2.1
0.7
5-4.2
0.68
5.8
0.7
2.6
1.0
3 : 1
3 : 1
2.8%
EXCEL R-1
0.066
0.31
1 2.11
0.53
2.9
1.2
5-4.2
0.68
5.8
0.7
2.6
1.0
3: 1
3: 1
2.8%
VEGETATED
0.035
0.19
1 3.48
0.32
2.2
0.7
5-3
0.16
5.8
0.7
0.6
1.0
3 : 1
3 : 1
2.0%
EXCEL R-1
0.066
0.12
1 1.32
0.14
1.7
0.5
5-3
0.16
5.8
0.7
0.6
1.0
3: 1
3: 1
2.0%
VEGETATED
0.035
0.07
2.06
0.09
1.5
0.3
6-5
0.38
5.8
0.7
1.4
1.0
3 : 1
3 : 11
2.9%
EXCEL R-1
0.066
0.19
1.89
0.34
2.2
0.8
6-5
0.38
5.8
0.7
1.4
1.0
3: 1
3: 11
2.9%
VEGETATED
0.035
0.12
3.05
0.22
1.8
1 0.5
6-4.1
0.65
5.8
0.7
2.5
1.0
3 : 1
3 : 1
3.3%
EXCEL R-1
0.066
0.28
2.23
0.57
2.7
1.1
6-4.1
0.65
5.81
0.7
2.5
1 1.0
3: 1
3: 1
3.3%
VEGETATED
0.035
0.17
3.68
0.35
2.1
0.7
6-4.2
0.33
5.81
0.7
1.2
1.0
3 : 1
3 : 1
5.1%
EXCEL R-1
0.066
0.14
2.27
0.45
1.9
0.6
6-4.2
0.33
5.8
0.7
1.2
1.0
3 : 1
3 : 1
5.1 %
VEGETATED
0.035
0.09
3.55
0.28
1.6
0.3
6-3
0.45
5.8
0.7
1.7
1.0
3 : 1
3 : 1
3.7%
EXCEL R-1
0.066
0.20
2.17
0.46
2.3
0.8
6-3
0.45
5.8
0.7
1.7
1.0
3: 1
3: 1
3.7%
VEGETATED
0.035
0.12
3.48
0.28
1.8
0.5
6-2
0.44
5.8
0.7
1.7
1.0
3 : 1
3 : 1
2.0%
XCEL R-1
0.066
0.25
1.70
0.31
2.6
1.0
6-2
0.44
5.8
OJ
1.7
1.0
3: 1
3: 1
2.0.
VEGETATED
0.035
0.15
2.75
0.19
1.9
0.6
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