SW3201001_SIGNED_SuppEZ-2018-Version-2.1.1_02152021_20210217

SUPPLEMENT-EZ COVER PAGE
FORMS LOADED
PROJECT INFORMATION
1 lProiectName
Project Area (ac)
Coastal Wetland Area (ac)
Surface Water Area (ac)
Is this project High or Low Density?
Does this protect use an off -site SCM?
Dollar General - Granite (
2.17
0
0
No
COMPLIANCE WITH 02H .1003(4)
7
Width of vegetated setbacks provided feet
N/A
8
Will the vegetated setback remain vegetated?
Yes
9
Is BUA other that as listed in .1003 4 c-d out of the setback?
Yes
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
1
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
0
25
Ba filter
IFilterra
26
0
FORMS LOADED
DESIGNER CERTIFICATION
27 Name and Title: Justin Church, PE / Principal Engineer
28
Organization:
BREC, P.A.
29
Street address:
1520 Meadowview Drive
30
City, State, Zip:
Wilkesboro, NC 28697
31
Phone numbers :
336.844.4088
32
Email:
Iustin(a)brec.biz
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. A
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of Designer
02/16/2021
Date

DRAINAGE AREAS
1
Is this a high density project?
Yes
2
If so, number of drainage areas/SCMs
1
3
Is all/part of this project subject to previous rule
versions?
No
FORMS LOADED
DRAINAGE AREA INFORMATION
Entire Site
1
4
T pe of SCM
N/A
Sand Filter
5
Total BUA in project (sq ft
53464 sf
53464 sf
6
New BUA on subdivided lots (subject to
ermitting) (sq ft
N/A
N/A
7
New BUA outside of subdivided lots (subject to
ermittin s
29211 sf
29211 sf
8
Offsite -total area (sq ft
43875 sf
43875 sf
9
Offsite BUA (sq ft
24253 sf
24253 sf
10
Breakdown of new BUA outside subdivided lots:
- Parking (sq ft
18026 sf
18026 sf
- Sidewalk (sq ft
1976 sf
1976 sf
- Roof (sq ft
9209 sf
9209 sf
- Roadway s ft
sf
sf
- Future (sq ft
sf
sf
- Other, please specify in the comment box
below (sq ft
sf
sf
11
New infiltrating permeable pavement on
subdivided lots (sq ft
sf
sf
12
New infiltrating permeable pavement outside of
subdivided lots (sq ft
sf
sf
13
Exisitng BUA that will remain (not subject to
ermitting) (sq ft
sf
sf
14
Existing BUA that is already ermitted (sq ft
sf
sf
15
Existing BUA that will be removed (sq ft
sf
sf
16
Percent BUA
57%
57 0
17
IDesign storm inches
N/A
1 in
18
IDesign volume of SCM cu ft
N/A
4404 cf
19
lCalculation method for design volume
N/A
Simple
ADDITIONAL INFORMATION
20
Please use this space to provide any additional information about the
drainage area(s):
DRAINAGE AREA INFORMATION
Entire Site
1
4
T pe of SCM
N/A
5
Total BUA from project (sq ft)
6
1995 rules
SL 2006-246
2008 rules
2017 rules
7
New BUA on subdivided lots (subject to
permitting) (sq ft)
1995 rules
SL 2006-246
2008 rules
2017 rules
New BUA outside of subdivided lots (subject
to permitting) (sf)
1995 rules
SL 2006-246
2008 rules
8
2017 rules
9
Offsite - total area (sq ft)
1995 rules
SL 2006-246
2008 rules
2017 rules
10
Offsite BUA (sq ft)
1995 rules
SL 2006-246
2008 rules
2017 rules
11
IDesign storm (inches)

1995 rules
SL 2006-246
2008 rules
2017 rules
12
Breakdown of new BUA:
- Parking (sq ft
- Sidewalk (sq ft
- Roof (sq ft
- Roadway s ft
- Future (sq ft
- Other, please specify in the comment box
below (sq ft
13
New infiltrating permeable pavement on
subdivided lots (sq ft
14
New infiltrating permeable pavement outside of
subdivided lots (sq ft
15
Exisitng BUA that will remain (not subject to
permitting) (sq ft)
16
IlExisting BUA that is already permitted (sq ft)
17
Existing BUA that will be removed (sq ft
18
Percent BUA
19
Design volume of SCM cu ft
20
Calculation method for design volume
ADDITIONAL INFORMATION
21
JPlease use this space to provide any additional
information about the drainage area(s):

SAND FILTER
23
Volume that can be retained in the sediment chamber (cubic feet)
1986 cf
24
Will there be a permanent pool in the sediment chamber?
Yes
25
Bottom of the sediment chamber (fmsl)
777.00
26
Area of the sediment chamber (square feet)
1221 sf
27
Physical depth of the sediment chamber (inches)
28.0 in
28
Ponding depth in the sediment chamber, above any permanent pool
(inches)
i 16.0 in
29
Elevation of top of weir between chambers (fmsl)
779.35
Chamber
Volume that can be retained ii
Bottom of the sand chamber
34
ronaing aeptn in the sane cnamoer, aoove any permanent pool
(inches)
16.0 in
35
Elevation of the bypass device (fmsl)
779.35
36
Type of bypass device
weir
37
Mechanism for distributing flow over the sand surface
stone dam
38
Sand specification for sand chamber
astm c33
39
Depth above underdrain pipe (inches)
18 in
40
Will the media be maintained to drain at least two inches per hour at
the sand surface?
Yes
41
Is at least one clean -out pipe provided at the low point of each
underdrain line?
Yes
use tins space to proviae any
43 ISand
Sand Filter 4 5:01 PM 2/16/2021