SW6220804_Supplement-EZ Form_20220831

SUPPLEMENT-EZ COVER PAGE
LOAD SUPPLEMENT FORM
PROJECT INFORMATION
1 1 Project Name Rebekah Evans 2301kV POD
2 Project Area (ac) 2.73
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. 1 003(4)(c-d)?
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 1 Stormwater Wetland
15 Permeable Pavement
16 Sand Filter
0
0
0
0
0
0
17
Rainwater Harvesting (RWH)
0
18
JGreen 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
LOAD SUPPLEMENT FORMS
DESIGNER CERTIFICATION
27
Name and Title:
Organization:
28
29
Street address:
30
City, State, Zip:
31
Phone number(s):
32
Email:
Joe Ervin, P.E.
Pike Engineering, LLC
123 N White St.
Fort Mill, SC, 29715
803-835-7929
[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.
Designer
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Signature of Designer
Date

DRAINAGE AREAS
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
2
5
Is all/part of this project subject to previous rule
versions?
No
FORMS LOADED
DRAINAGE AREA INFORMATION
Entire Site
LID 1
LD 2
4
Type of SCM
Sheet Flow
Sheet Flow
5
Total drainage area (sq ft
132858
77537
6
Onsite drainage area (sq ft
78491
7
Offsite drainage area (sq ft
54367
8
Total BUA in project (sq ft
14997 sf
9
New BUA on subdivided lots (subject to permitting)
1 (sq ft
sf
10permitting)
New BUA not on subdivided lots (subject to
s
14997 sf
sf
11
Offsite BUA (sq ft
12
Breakdown of new BUA not on subdivided lots:
- Parkina (sq fit)
-Sidewalk (sft
sf
sf
- Roof (sq ft
sf
- Roadway s ft
sf
- Future (sq ft
sf
- Other, please specify in the comment box
below (sq ft
14997 sf
13
New infiltrating permeable pavement on
subdivided lots (sq ft
sf
14
New infiltrating permeable pavement not on
subdivided lots (sq ft
Existing BUA that will remain (not subject to
s ft
sf
15permitting)
sf
16
Existing BUA that is already permitted (sq ft
sf
17
Existing BUA that will be removed (sq ft
sf
18
Percent BUA
11 %
19
Design storm inches
5.6 in
20
Design volume of SCM cu ft
21 Calculation method for design volume
DDITIONAL 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)
n1a
5
Maximum velocity in the vegetated conveyances during the 10-year storm?
6
Are curb outlet swales proposed?
No
7
Maximum longitudinal slope of curb outlet swale(s) (% )
n1a
8
Bottom width of curb outlet swale(s) (feet)
n1a
9
Maximum side slope of curb outlet swale(s) (H:V)
n1a
10
Minimum length of curb outlet swale(s) (feet)
n1a
11
Are treatment swales used instead of curb outlet swales?
12
Is stormwater released at the edge of the setback as dispersed flow?
Yes
13
Have stormwater outlets been designed to prevent downslope erosion?
14
JAre variations to rule .1003 proposed?
No
ADDITIONAL INFORMATION
15 1 Please use this space to provide any additional information about this low density project:
Proposed site has a total built upon area (BUA) of 21.97%. Stormwater runoff for the site utilizes unchannelized surface flow
(<1.5 % slope) which passes though an existing vegetated area (<0.6 % slope) before flowing into existing surface conveyances.