SW3240203_Supplement-EZ Form_20240222

SUPPLEMENT-EZ COVER PAGE
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PROJECT INFORMATION
1 Project Name _ _ _ _ Union County Shrine Club
2 Project Area(ac) 6.32
3 Coastal Wetland Area(ac) 0
4 Surface Water Area(ac) 0
5 Is this project High or Low Density? Low
6 Does this project use an off-site SCM? No
COMPLIANCE WITH 02H.1003(4)
7 Width of vegetated setbacks provided(feet) N/A
8 Will the vegetated setback remain vegetated? N/A
9 If BUA is proposed in the setback,does it meet NCAC 02H.1003(4)(c-d)? N/A
10 Is streambank stabilization proposed on this project? No
NUMBER AND TYPE OF SCMs:
11 Infiltration System 0
12 Bioretention Cell _ _ 0
13 Wet Pond 0
14 Stormwater Wetland _ 0
15 Permeable Pavement 0
16 Sand Filter 0
17 Rainwater Harvesting(RWH) 0
18 Green Roof 0
19 Level Spreader-Filter Strip(LS-FS) 0
20 Disconnected Impervious Surface(DIS) 0
21 Treatment Swale 0
22 Dry Pond 0
23 StormFilter 0
24 Silva Cell 0
25 Bayfilter 0
26 Filterra 0
FORMS LOADED
DESIGNER CERTIFICATION
27 'Name and Title: Jesse W.Wilson,PE
28 Organization: _ Wilson Engineering Group
29 Street address: 1001 Chestnut Drive
30 City,State,Zip: Smithfield,NC 27577
31 Phone number(s): [phone]
32 Email: sudspa©gmail.com
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
Designer
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DRAINAGE AREAS
Is this a high density project?
1No
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
Is all/part of this project subject to previous rule
5 versions? No
FORMS LOADED ]
DRAINAGE AREA INFORMATION Entire Site LD 1
4 Type of SCM None None
5 Total drainage area(sq ft) 275,321.65 275,321.65
6 Onsite drainage area(sq ft) 275,321.65 275,321.65
7 Offsite drainage area(sq ft) 0.00 0.00
8 Total BUA in project(sq ft) 48,781.94 48,781.94
New BUA on subdivided lots(subject to
9 permitting)(sq ft) 0 SF 0 SF
New BUA not on subdivided lots(subject to
10 permitting)(sf) 45,276.08 45,276.08
11 Offsite BUA(sq ft) 0 sf 0 sf
12 Breakdown of new BUA not on subdivided lots:
-Parking(sq ft) 37,980.87 37,980.87
-Sidewalk(sq ft) 1,795.21 1,795.21
-Roof(sq ft) 5,500.00 5,500.00
-Roadway(sq ft) 0.00 0.00
-Future(sq ft) 0.00 0.00
-Other,please specify in the comment box
below(sq ft)
New infiltrating permeable pavement on
13 subdivided lots(sq ft) 0 sf 0 sf
New infiltrating permeable pavement not on
14 subdivided lots(sq ft) _ 0 sf 0 sf
Existing BUA that will remain(not subject to
15 permitting)(sq ft) 3,505.86 3,505.86
16 Existing BUA that is already permitted(sq ft) 0 sf 0 sf
17 Existing BUA that will be removed(sq ft) 0 sf 0 sf
18 Percent BUA 16.66% 16.66%
19 Design storm(inches) 0.642 0.642
20 Design volume of SCM(cu ft) N/A N/A
21 Calculation method for design volume N/A N/A
ADDITIONAL INFORMATION
Please use this space to provide any additional information about the
22 drainage area(s):

LOW DENSITY
DESIGN REQUIREMENTS FOR LOW DENSITY PROJECTS FROM 02H.1003
1 Is project below density thresholds set forth in the applicable stormwater rule? Yes
2 Does project maximize dispersed flow and minimize channelization of flow? Yes
3 Has the use of piping been minimized per.1003(2)(c)? Yes
4 Side slopes of the vegetated conveyances(H:V) 2:1 Max
5 Maximum velocity in the vegetated conveyances during the 10-year storm? 1.39
6 Are curb outlet swales proposed? No
7 Maximum longitudinal slope of curb outlet swale(s)(%)
8 Bottom width of curb outlet swale(s)(feet)
9 Maximum side slope of curb outlet swale(s)(H:V)
10 Minimum length of curb outlet swale(s)(feet)
11 Are treatment swales used instead of curb outlet swales? No
12 Is stormwater released at the edge of the setback as dispersed flow? N/A
13 Have stormwater outlets been designed to prevent downslope erosion? Yes
14 Are variations to rule.1003 proposed? I No
ADDITIONAL INFORMATION
15 Please use this space to provide any additional information about this low density project:
The project has onsite ditches around the parking area access roads which discharge to temporary sediment basins.In the final
grading plan(temporary sediment basins removed)the ditches are widened at the discharge point to disperse the flow to a
sheet flow scenario downstream.
Swale I Drainage BUA Pervious Q Slope Vallow Va„„a1 Flow depth
# Area (ac) area C (cfs) (%) (fps) (fps) (ft)
(ac) (acl
1 0.15 0.05 0.10 0.72 0.83 2.63 2.00 1.39 0.55
2 0.35 0.10 0.26 0.70 1.89 1.22 2.00 1.18 0.89
3 0.63 0.32 0.31 0.78 3.77 1.00 2.00 1.34 1.19
4 0.18 0.03 0.15 0.66 0.92 1.07 2.00 0.85 0.73
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