SW4210703_Supplement-EZ Form_20211109

SUPPLEMENT-EZ COVER PAGE
FORMS LOADED
PROJECT
INFORMATION
1
Project Name I
Tally Pointe
2
Project Area Jac)18.67
3
—�—
Coastal Wetland Area (act
0
4
Surface Water Area ac
__ 5_
' Is this project High or l ow Density?
6
-.
Does this project use an off -site SCM?
No
COMPLIANCE WITH 02H .1003 4
7
,Width of vegetated setbacks rovi�_ tied (feet 30
8 _
_
Will the vegetated setback remain vegetated? Yes
9
10
_
If BUA is proposed in the setback, does it meet NCAC 021-1.1003O& dj?
Is streambank stabilization proposed on this project? No
NUMBER AND TYPE OF SCMS:
11
lnfiltration SLstem
12
Biorelention Cell
13
Wet Pond
14
15
Stormwater Wetland
;Permeable Pavement
16
...__..__ _..--_._._.._._.__......_____....----.___.__._._.._.... _
;Sand Filter _
17__iRainwater
18
19
20
HarvestingSRWH�— _ _ i _ �� I
JGreen Roof
I Level Spreader_Filter Strip - - - -- - — -- —
I Disconnected Impervious Surface-
21Treatment
Swale --- _-__— --_— _
22
23
iDryPond.. _...__._.__._.......... —....... ____—...___.
;StormFilter
24
ISilva Cell
25_
26
—
IBa titer __-
IFi{terra
FORMS LOADED
DESIGNER CERTIFICATION
27
Name and Title:
1— Thomas R. Glover, Jr., PE
28
Organization:
j Jamestown Engineering Group, Inc.
29
;Street address: — _
T 117 E. Main Street
30
�Cdy, State Zip: _.._.__._._._._..___.._______,_...___....._
Jamestown, NC 27282
31
.!Phone numbers :
1 336-886-5523
32
;Email:
[e-mail]
Certification Statement:
I certify, under penalty of law that this Supplement-EZ form and all supporting information were prepared under my direction or supervision; that the
information provided in the form is, to the best of my knowledge and belief, true, accurate, and complete; and that the engineering plans,
specifications, operation and maintenance agreements and other supporting information are consistent with the Information provided here.
VAF?Q
3�paa�Or{g$S1Oi
SEAL
y 2746
`©�,�S�c iatiti�
of Desig
z7 2 i
Date

I
its this a high density p ect? _
No
2
If so, number of drainage areas/SCMs — _ `
0
3
Does this project have low densityareas? _
_
Yes
�4
If so, number of low denser drains a areas
1
Is all/part of this project subject to previous rule
5
versions?
No
FORMS LOADED
DRAINAGE AREA INFORMATION
Entire Site
LD 1
4
JTvPe of SCM
Curb outlet swales
Curb outlet swales
5
Total drainacie area (sq fill
813265
813265
6�
Onsite drainage area (sq ft
813265
813265
7
Offsite drainage area (sq ft
0
0
8
Total BUA in project (sq ft
175532 sf
175532 sf
9 1�)_
New BUA on subdivided lots (subject to permitting)
_ _
144000 sf
144000 sf
10permitting)
New BUA not on subdivided lots (subject to
31532 sf
31532 sf
11
Offsite BUA (sq ft -
sf
sf
12
Breakdown of new BUA not on subdivided lots:
Parking s�t ft��
sf
sf
Sidewalk N ft)
sf
sf
__
Roofs ft
sf
sf
Roadway s ft
31532 sf
31532 sf
FutureSsq ft)
sf
sf
Other, please specify in the comment box
betow�sq ftj — --
sf
sf
13
New infiltrating permeable pavement on
subdivided lots (sq ft
sf
sf
14
New infiltrating permeable pavement not on
subdivided lots (sq ft
sf
sf
15_
Existing BUA that will remain (not subject to
ermittin s ftL
sf
sf
16
17
Existing BUA that is already permifled �sg ftj_
Existing BUA that will be removed (sq ft
sf
sf
sf _
sf
18
Percent BUA
22%
22%
9
Design storm (inches)
n/a
n/a
0
k21
Desig_r volume of SCM Lcu_ft�_�—_�
n/a
Ma
Calculation method for design volume
n/a
n/a
ADDITIONAL
INFORMATION
22
Please use this space to provide any additional information about the
drainage area(s):

LOW DENSITY
DESIGN RE UIREMENTS FOR LOW DENSITY PROJECTS FROM 021-1.1003
1
2
is project below density thresholds set forth in the applicable stormwater rule?
Does project dispersed flow and minimize channelization of flow?�
Yes
Yes
3
4
Has the use of piping been minimized per .1003(2)(c)? _ -
Side slopes of the vegetated conveyances (H:V)
_Yes
3 to 1
3 5
6
_ _
Maximum velocity in the vegetated conveyances during the 10-year storm?
Are curb outlet swales proposed?�
4.7
Yes
7
Maximum longitudinal slope of curb outlet swales) (%) _ _
1%
8
_
Bottom width of curb outlet swales) (feet)
4 ft
9
Maximum side slope of curb outlet swales) (H:V) _ _
3 to 1
10
-_-
Minimum length of curb outlet swales) (feet)
100 ft
11
Are treatment swales used instead of curb outlet swales?
No
12
Is stormwater released at the edge of the setback as dispersed flow?
Yes
13
14
Have stormwater outlets been designed to_ prevent downslope erosion? _
Are variations to rule .1003 proposed?
Yes
No
ADDITIONAL INFORMATION
- 15
Please use this space to provide any additional information about this low density project:.___,
Swale # '
Drainage
Area
ac
BUA
(ac)
Pervious
area
ac
C
Q
(cfs)
Slope
(%)
V,w„,
(fps)
V,ct,,,,
(fps)
Flow
depth (ft)
Swale ID
1
0.90
0.27
0.63
0.66
4.1
2.5%
6.0
3.66
0.28
1-3
2
0.30
0.09
0.21
0.66
1.4
3.2%
6.0
3.10
0.11
1-6
3
0.30
0.09
0.21
0.65
1.4
4.4%
6.0
3.60
0.10
1-7
4
0.60
0.18
0.42
0.65
2.7
3.6%
6.0
3.85
0.18
1-8
6
0.40
0.12
0.28
0.66
1.8
2.3%
6.0
2.98
0.16
1-9
6
0.68
0.20
0.48
0.65
3.1
2.1%
6.0
3.24
0.24
1-10A
7
0.67
0.20
0.47
0.65
3.0
2.1%
6.0
3.24
0.24
1-10B
8
1.11
0.33
0.78
0.65
5.0
1 4.1%
6.0
4.71
0.28
2-1
9
0.66
0.17
0.39
0.65
2.5
4.1%
6.0
1 3.97
0.16
1 2-2
10
0.30
0.09
0.21
0.65
1.4
4.1%
6.0
3.38
0.10
2-4
11
1.40
0.42
0.98
0.65
6.3
3.0%
6.0
4.29
0.37
2-5
12
0.20
0.06
0.14
US
0.9
2.3%
6.0
2.42
0.09
2-6
13
0.50
0.15
0.35
0.66
2.3
1.5%
6.0
2.64
0.21
2-7
14
0.40
0.12
0.28
0.66
1 1.8
1.5%
6.0
2.62
0.18
2-8
16
0.47
0.14
0.33
0.65
2.1
2.0%
6.0
1 2.91
0.18
2-9A
16
0.50
0.15
0.35
0.65
2.3
2.0%
6.0
2.96
0.19
2-9B
17
10.3
2.63
7.67
0.63
45.1
1.0%
6.0
3.79
1.37
COS 1
18
4.9
1.47
3.43
0.65
22.1
1.0%
6.0
3.17
0.78
COS 2
19
20
21
22
23
24
26
26
27
28
29
30