SW3190803_C32_12/31/2019

SUPPLEMENT-EZ COVER PAGE
FORMS LOADED
PROJECT INFORMATION
1 Project Name Salem Leasing Corporation
2
Project Area ac
10.725
3
Coastal Wetland Area ac
4
Surface Water Area ac
5
s thisho"pacteith i
wo
Hi h
aLon
CM?us6DosH
er
ffD-seintes
No
COMPLIANCE WITH 02H .1003(4)
7
Width of vegetated setbacks rovitlad feet
8
WII the ve etated setback remain ve elated?
9
Is BUA other that as listed in .1003 4 c-d out of the setback?
10
Is streambank stabilization proposed on this project?
No
NUMBER AND TYPE OF SCIM:
11
Infiltration System
0
12
Bioreterltion Cell
0
13
Wet Pond
1
14
Stormwater Wetland
0
15
Permeable Pavement
0
16
Sand Filter
0
17
Rainwater Harvesting RWH
0
18
Green Roof
0
19
1 Level S reader -Filter Strip LS-FS
0
20
Disconnected Impervious Surface CIS
0
21
Treatment Swale
0
22
D Pond
0
23
StormFilter
0
24
Silva Cell
0
25
Ba filter
0
2,;FiOerra
0
FORMS LOADED
DESIGNER CERTIFICATION
27
Name and Title:
Matthew Grant CEO
28
Or anization:
Jordan Grant 8 Associates, PLLC
29
Stree[addmas:
2351 Simonton Rd
30
City, State, Zip:
Statesville NC 28625
31
Phone numbers :
704-928-7919
32
Email:
[e-mail]
Certification Statement:
I certify, under penalty of lawthatthis Su lament-EZ form and all supporting information were prepared under direction or
dY. Pe N PP PPo 9 P eP m9
n; that the information provided in the form is to the beat of knowledge and belief, true accurate, and complete and
supervision; P � my 9 � � � P
that the en ineerin plans, specifications, operation and maintenance agreements and other supporting information are consistent
9 n P Pe Pe 9 PP 9
w;tn me information provided Here.
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SEAL
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Signature of Designer
Dacember3O,2019
Date
DRAINAGE AREAS
1 Is this a high density project? Yes
2 If so, number of drainage areas/SCMs 1
Is all/part of this project subject to previous rule
3 versions? No
FORMS LOADED
DRAINAGE
AREA INFORMATION
Entire Site
1
4
Type of SCM
Wet pond
1
5
Total BUA in project (sq ft
362057 sf
314751 sf
6permitting)
New BUA on subdivided lots (subject to
s ft
7
New BUA outside of subdivided lots (subject to
ermittin s
8
Offsite - total area (sq ft
9
Offsite BUA (sq ft
10
Breakdown of new BUA outside subdivided lots:
Parking (sq ft
354,349 sf
307,033 sf
Sidewalk (sq ft
718 sf
718 sf
Roof (sq ft
7000 sf
7000 sf
Roadway s ft
Future (sq ft
Other, please specify in the comment box
below (sq ft
11
New infiltrating permeable pavement on
1subdivided lots (sq ft
12
New infiltrating permeable pavement outside of
subdivided lots (sq ft
13permitting)
Exisitng BUA that will remain (not subject to
s ft
14
Existino BUA that is already permitted (sq ft
15
Existing BUA that will be removed (sq ft
16
Percent BUA
79%
79%
17
Design storm inches
1 in
1 in
18
IDesign volume of SCM cu ft
28561 cf
28561 cf
19
ICalculation method for design volume
Simple
Simple
ADDITIONAL INFORMATION
20
Please use this space to provide any additional information about the
drainage area(s):
No. 5 - 47,306 sq. ft. of BUA is outside wet pond drainage area.
WET POND
1 Drainage area number 1
2 Design volume of SCM (cu ft) 28561 cf
GENERAL MDC FROM 02H .1050
3 Is the SCM sized to treat the SW from all surfaces at build -out? aFes
4
Is the SCM located away from contaminated soils?
Yes
5
What are the side slopes of the SCM (H:V)?
3:1
6
Does the SCM have retaining walls, gabion walls or other
engineered side slopes?
No
7
Are the inlets, outlets, and receiving stream protected from erosion
(10-year storm)?
Yes
8
Is there an overflow or bypass for inflow volume in excess of the
design volume?
Yes
9
What is the method for dewatering the SCM for maintenance?
Pump (preferred)
10
If applicable, will the SCM be cleaned out after Construction?
Yes
11
Does the maintenance access comply with General MDC (8)?
Yes
12
Does the drainage easement comply with General MDC (9)?
Yes
13
If the SCM is an a single family lot, does (will?) the plat comply with
General MDC (10)?
14
Is there an O&M Agreement that complieswith General MDC (11)?
Yes
15
Is there an O&M Plan that complies with General MDC (12)?
No
16
Does the SCM follow the device specific MDC?
Yes
17 Was the SCM designed by an NC licensed professional?
WET POND MDC FROM 02H .1053
18 Method used
Yes
SAIDA
19
Has a stagelstorage table been provided in the calculations?
Yes
20
Elevation of the excavated main pool depth (bottom of sediment
removal) (fmsl)
895.00
21
Elevation of the main pool bottom -(top of sediment removal) (fmsl)
896.00
22
Elevation of the bottom ofthe vegetated shelf (fmsl)
899.00
23
Elevation of the permanent pool (fmsl)
899.50
24
Elevation of the top ofthe vegetated shelf (fmsl)
900.00
25
Elevation of the Ypool tem orar
p ( frn sl )
900.50
26
Surface area ofthe main permanent pool (square feet
9494
27
Volume of the main permanent pool (cubic feet)
24804 cf
28
Average depth ofthe main pool (feet)
3.00 ft
29
Average depth equation used
Equation 2
30
If using equation 3, main pool perimeter (feet)
31
If using equation 3, width of submerged veg. shelf (feet)
32
Volume of the forebay (cubic feet)
3757 cf
33
Is this 15-20% ofthe volume in the main pool?
Yes
34
Clean -out depth for forebay (inches)
12 in
35
Design volume of SCM (cu ft)
9764 cf
36
Is the outlet an orifice or a weir?
Orifice
37
If orifice, orifice diameter (inches)
1.25 in
38
If weir, weir height (inches)
39
If weir, weir length (inches)
40
Drawd own time for the temporary pool (days)
2.77
41
Are the inlet(s) and outlet located in a manner that avoids short-
circuiting?
Yes
42
Are berms or baffles provided to improve the flow path?
No
43
Depth offorebay at entrance (inches)
36 in
44
Depth offorebay at exit (inches)
24 in
45
Does water flow out ofthe forebay in a non -erosive manner?
Yes
46
Width ofthe vegetated shelf (feet)
6 ft
47
Slope of vegetated shelf (H:V)
6.1
48
Does the orifice drawdown from below the top surface of the
permanent pool?
Yes
49
Does the pond minimize impacts to the receiving channel from the 1-
yr, 24-hr storm?
Yes
50
Are fountains proposed? (If Y, please provide documentation that
MDC(9) is met.)
No
51
Is a trash rack or other device provided to protect the outlet system?
Yes
52
Are the dam and embankment planted in non -clumping turf grass?
Yes
53
Species of turfthat will be used on the dam and embankment
(Festuca rubra)
54
Has a planting plan been provided for the vegetated shelf?
Yes
ADDITIONAL
INFORMATION 10
55
Please use this space to provide any additional information about
the wet pond(s):
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36" HDPE
INV.881.70 I
RISER CREST 901.75
1.25' PVC STUBBED OUT INT❑
TEMPORARY POOL 900.50
1.25' PVC SCREW TYPE PLUG
1.25' PVC TEE
NORMAL POOL 899.50
DEWATERING METHOD:
IICP PI IMP Tfl TIPAW nn\./KI
41
SCALE: 1"=30'
4
CB
_4" HDPE Z
re
VEGETATED SHELF - HATCHED + + +
� � -I-
APPROXIMATELY 9,030 SQUARE FEET AT ELEV. 900.0
2258 PLANTS REQUIRED - 50 PER 200 SF ® 24-36" OC IN RANDOM, MERGING GROUPS
1025 PLANTS SHOWN
PLANT MATERIAL LIST
QTY JOE—PYEPVL4bT NAME SIZE / NOTE LOCATION ON SHELF
300
CHELONE GLABRA
4" POT
PLACE AT LOWER ELEVATION
WHITE TIRTLEHEAD
GROUPS OF 20
300
HIBISCUS COCCINEUS
DP50 PLUG
PLACE AT LOWER ELEVATION
SCARLET ROSE MALLOW
GROUPS OF 10-20
800
ASCLEPIAS INCARNATA
DP50 PLUG
SCATTER THROUGHOUT
SWAMP MILKWEED
GROUPS OF 15-25
800
CAREX TENERA
2.5" CAL. B&B
PLACE AT UPPER ELEVATION
QUILL SEDGE
RANDOM
58
EUPATORIADELPHUS FISTOLOSUS
1 GALLON CONTAINER
SCATTER THROUGHOUT
AS SHOWN
MULCH ENTIRE VEGETATED SHELF WITH 2-3" SHREDDED HARDWOOD BARK
PLANT DAM AND EMBANKMENTS WITH NON -CLUMPING Creeping Red Fescue (Festuca rubra)
7'
JTLET STRUCTURE DETAIL
N.T.S.
✓ERT: 882,00
TRASH RACK
WEIR
4X4 PRECAST CONCRETE STRUCTURE
0,
36'x3' ❑PENING ON ALL
4 SIDES
30' RCP
OUTLET PIPE
4 CY OF CONCRETE
ANTI -SWEEP
MEASURE
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Sheet No:
C32