SW4210704_Supplement-EZ Form_20211013

SUPPLEMENT-EZ COVER PAGE
FORMS LOADED
PROJECT INFORMATION
]Project
2 1
Name
Project Area (ac)
Dolcetto
77.73
3
Coastal Welland Area ac
i 0
4
Surface Water Area (ap)
0.45
5
Is this roject High or Low Density?
Low
6
Does this project use an off -site SCM?
No
COMPLIANCE VWTH 02H.1003(41
7
—WLidth of vegetated setbacks provided (feeQ­_­________________ 30
8 'Will the vegetated setback remain vegetated? Yes
9 If BUA is prop sed in the setback, does it meet NCAC 02H. 1003 )(c )? N/A
10 is streambank stabilization proposed on this project? No
NUMBER AND TYPE OF SCMS:
11
Infiltration System
12
Bioretention Cell
13
Wet Pond
14
Stormwater Welland
15
!Permeable Pavement
16
;Sand Filter
!Rainwater HanLe
17
18
Green Roof
19
Level Spreader -Filter Strip CLS:ES
20
Disconnected Impervious Surface (DIS)
21
Treatment Swale
22
Pond
23
StormFilter
24
Silva Cell
..25 ---
Bqfilter
Titeria
26
I FORMS LOADED
DESIGNER CERTIFICATION
27
Name and Title:
Thomas R. Glover, Jr., PE - Enqineer
28
Oroanization:
Jamestown EngineeringGroup, Inc.
29
Street address:
PO Box 365 - 117 E. Main St.
31
32
.. .............. . .... . ........ . . .. ............
Phone number(s):
jEmail:
Jamestown, NC 27282
336-886-5523
[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.
CAR
. SEAS
I 0i
Date

1
Is this a high density project?
No
2
If so, number of drainage areas/SCMs
0
3
Does this project have low density areas?
Yes
4
If so, number of low density drainage areas
1
5
Is alMpart of this project subject to previous rule
versions?
No
FORMS LOADED
DRAINAGE AREA INFORMATION
Entire Site
LD 1
4
T e of SC M
5
Total drainage areas ft
3385918
3385918
6
F8
Onsite drainage areas ft
3385918
3385918
7
Offsite drainage areas ft
0
0
Total BUA in project (sq ft
582314 sf
582314 sf
9__
"New
10 ,permitting)
New BUA on subdivided lots (subject to permitting)
4s9_ft)_..._._ _ _.._ _
BUA not on subdivided lots (subject to
_ __
476000 sf
106314 sf
476000 sf
106314 sf
11 1
Offsite BUA (sq ft
sf
sf
12
Breakdown of new BUA not on subdivided lots:
Parking (sq ft
1329 sf
1329 sf
Sidewalk (sq ft
sf
sf
Roof (sq ft
sf
sf
Roadway (sq ft)
Future (sq ft)
sf
sf
sf
sf
13
Other, please specify in the comment box
below (sqft)__ _
New infiltrating permeable pavement on
subdivided lots (sq ft
280 sf
sf
280 sf
sf
14
_
New infiltrating permeable pavement not on
subdivided lots (sq ft
sf
sf
15permitting)
Existing BUA that will remain (not subject to
soft)
sf
sf
ExistingBUA that is alreadypermitted s ft
sf
sf
ExistingBUA that will be removed s ft
sf
sf
Percent BUA
17%
17%
V21
_ _
esign storm(inchesP �
1.0 in
1.0 in
Desi n volume of SCM cu ft
We
n/a
Calculation method for design volume
We
n/a
ADDITIONAL
INFORMATION
22
Please use this space to provide any additional information about the
drainage area(s):
12.other = BUA list is for the mail kiosk

DESIGN RE REMENT FOR LOW DENSITY PRO190 FROM 02H .1.003
1
Is project below density thresholds set forth in the applicable stomrwater rule? `--
Yes
2
Does project maximize dispersed flow and minimiza channelization of flow?
Yes
3
Has the use of piping been minimized per .I003(2)(c)?
4
Side slopes of the vegetated conveyances (H:V) -
3.1
5
Maximum velocity in the vegetated conveyances during the 10-year storm?-� - -
5.3
6
7
Are curb outlet swales proposed?
Maximum longitudinal slope of curb outlet swales) (%)
Yes
2%
8
Bottom width of curb outlet swales) (feet) _-
6-10
9
- -
Maximum side slope of curb outlet swale(s) (H:V) _
3:1
10
11
Minimum length of curb outlet swales) (feet)
Are treatment swales used instead of curb outlet swales?
loon
No
12
13
Is stormwater released at the edge of the setback as dispersed flow?
._._..._.__._........... .........._-..
ave storrnwateroutlets been designed to prevent downslops erosion?14
�Are
Yes
Yas
variations to rule .1003 proposed?
Yes
ADDITIONAL INFORMATION
15 1piease use this space to provide any additional information about this low density project: -
Vegetated swales, with some storm piping, in addition to curb outlet systems and a dry detention pond are being used Instead of
vegeated swales with only Incidental piping. The proposed combination will reduce the chances of erosion, thus keeping an equal
or better water quality discharge for the pTject.
Swale
#
Drainage
Area
ac
BUA
(ac)
Pervious
area
ac
C
Q
(cis)
Slope
(°�)
Veb.,
(1Ps)
V.mm Flow depth
(iM) {ft)
Swale ID
1
1.17
0.35
0.82
0.65
4.41
0.02
5.50
3.42
0.33
1-13
2
1.41
0.42
0.99
0.65
5.32
0.02
5.50
3.52
0.38
1-12
3
0.86
0.26
0.60
0.66
3.24
0.03
5.50
3.57
0.23
1-11
4
1.20
0.36
0.84
0.65
4.52
0.03
5.50
3.81
0.30
1-10A
5
1.79
0.54
1.25
0.65
6.75
0.03
5.50
4.08
0.42
1-108
6
0.39
0.12
0.27
0.65
1.47
0.05
5.50
3.65
0.10
1-9A
7
0.63
0.19
0.44
0.65
2.38
0.05
5.50
4.15
0.14
1-98
e
0.14
0.04
0.10
0.65
0.53
0.07
5.50
3.05
0.04
1-8.1
9
0.42
0.13
0.29
0.65
1.58
0.05
5.50
3.72
0.11
1-8.2
10
0.40
0.12
0.28
0.65
1.51
0.05
5.50
3.84
0.10
1-7A-A
11
1.42
0.43
0.99
0.65
5.35
0.05
5.50
6.26
0.26
1-7A-B
12
0.40
0.12
0.28
0.65
1.51
0.05
5.50
3.84
0.10
1-7A
13
0.97
0.29
0.68
0.65
3.66
0.05
5.60
4.82
0.19
1-7B
14
0.32
0.10
0.22
0.66
1.21
0.06
5.50
3.74
0.08
1.6A
1s
0.39
0.12
0.27
0.65
1 1.47
0.06
5.50
4.03
0.10
1-6B
1s
0.40
0.12
0.28
0.65
1.51
0.05
5.50
3.73
0.10
1-5A
17
0.70
0.21
0.49
0.65
2.64
0.05
5.50
4.34
0.15
1-5B
1s
0.20
0.06
0.14
0.66
0.75
0.10
5.50
3.83
0.05
14A
19
0.37
0.11
0.26
0.65
1.39
0.10
5.50
4.66
0.08
1-4B
20
0.10
0.03
0.07
0.65
0.38
0.08
5.50
2.81
0.04
1.3
21
0.24
0.07
1 0.17
0.65
1 0.90
0.08
5.50
3.71
0.06
1-2A
22
0.78
0.23
0.55
0.65
2.94
0.08
5.50
5.29
0.14
1-2B
23
0.24
0.07
0.17
0.65
0.90
0.08
5.50
3.80
0.06
1-1A
24
0.44
0.13
0.31
0.65
1.66
0.08
5.50
4.67
0.09
1-18
25
0.15
0.05
0.11
0.65
0.57
0.10
5.50
3.33
0.04
EX B
26
0.50
0.15
0.35
0.65
1.89
0.02
5.50
2.54
0.19
EX A
_ 27
0.76
0.23
0.53
0.65
2.87
0.03
5.50
1 3.75
0.19
2.6
28
0.37
0.11
0.26
0.65
1,39
0.06
5.50
3.97
1 0,09
2.5
29
0.29
0.09
0.20 j
0.65
1.09
0.07
5.50
3.88
0.07
2-4A
30
0.36
0.11
0.25
1 0.65
1 1,36
0.07
5.50
4.17
0.08
2-48

31
0.40
0.12
0.28
0.65 1
1.51
0.05
5.50
3.84
0.10
2-3A
32
0.92
0.28
0.64
0.65
3.47
0.05
5.50
4.78
0.19
2.38
33
0.40
0.12
0.28
0.65
1.51
0.05
5.50
3.84
0.10
2-2A
34
0.61
0.18
0.43
0.65
2.30
0.05
5.50
4.31
0.14
2-28
35 1
0.40
0.12
0.28
0.65
1.51
0.05
5.50
3.80
0.10
4-7A
36
1.07
0.32
0.75
0.65
4.03
0.05
5,50 1
4.89
0.21
4-7B
37
0.40
0.12
0.28
0.65
1.51
0.05
5.50
3.80
0.10
4-6A
88
1.08
0.32
0.76
0.65
4.07
0.05
5.50
4.92
0.21
4-68
39
0.40
0.12
0.28
0.65
1.51
0.05
5.50
3.80
0.10
4.5A
40
0,61
0.18
OA3
0.65
2.30
0,05
5.50
4.27
0.14
4-5B
41
0.40
0.12
0.28
0.65
1.51
0.05
5.50
3.80
0.10
4-4A
42
0.80
0.24
0.56
0.65
3.02
0.05
5.50
1 4.57
0.17
44B
43
0.33
0.10
0.23
0.65
1.24
0.06
5.50
3.83
0.08
4-3.1A
44
0,46
0.14
0.32
0.65
1.73
0.06
5.50
4.28
0.10
4-3.1 B
45
0.50
0.15
0.35
0.65
1.89
0.04
5.50
3.55
0.14
4-3.2
�46
0.47
0.14
0.33
0.65
1.77
1 0.02
5.50
2.81
0.16
4-2
47
0.30
0.09
0.21
0.65
1.13
0.04
6,50
3.10
0.09
6-9.1
46
1.49
0.45
1.04
0.65
5.62
0.01
6.50
2.86
0.50
5.9.2
49
1.33
0.40
0.93
0.65
5.01
0.01
6.50
2.81
0.45
5-8
60
0.55
0.17
0.39
0.65
2.07
0.05
5.50
3.96
0.13
5-7A
61
2.01
0.60
1.41
0.65
7.58
0.05
5.50
5.28
0.36
5-7B
52
0.49
0.15
0.34
0.65
1.85
0.05
5.50
3.84
0.12
5.6
63
1.25
0.38
0.88
0.65
4.71
0.02
5.50
3.37
0.35
5-5.1
64
1.00
0.30
0.70
0.65
3.77
0.03
5.50
3.79
0.25
5-5.2A
55
1.36
0.41
0.95
0.65
5.13
0.03
5.50
4.02
0.32
5-5.28
Be
0.50
0.15
0.35
0.65
1.89
0.02
5.50
239
0.17
5-4.1
67
0.68
0.20
0.48
0.65
2.56
0.03
5.50
3.48
0.19
5-4.2
58
0.16
0.05
0.11
0.65
0.60
0.02
5.50
2.06
0.07
5-3
69
0.38
0.11
0.27
0.65
1.43
0.03
5.50
3.05
0.12
6-5
60
0.65
0.20
0.46
0.66
2.45
0.03
5.50
3.68
0.17
6-4.1
61
0.33
0.10
0.23
0.65
1.24
0.05
5.50
3.55
0.09
6-4.2
62
0.45
0.14
0.32
0.65
1.70
0.04
5.50
3.48
0.12
6-3
63
0.44
0.13
0.31
0.65
1.66
0.02
5.50
2.75
0.15
6-2
64
4.99
1.50
3.49
0.85
18.81
0.02
5.50
3.87
0.54
COS 4-1
Be
9.57
2.87
6.70
0.65
36.08
0.02
5.50
4.28
0.66
COS 5-1
66
2.25
0.68
1.58
0.65
8.48
0.02
5.50
3.02
0.32
COS 6-1