SW6240401_Supplement-EZ Form_20240403

SUPPLEMENT-EZ COVER PAGE
FORMS LOADED
PROJECT INFORMATION
1 Project Name ,-� .xm�. .a........ .., ..m ...a-,al.... c.,�s rim. Maple Drive 2e As k s
P
2 Project Area(ac) 1.46 _-.___ ___.___
3 Coastal Wetland Area(ac) I. p
4 Surface Water Area(ac) L. 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) 5 �-FYY .... ..
.40
7 Width of vegetated setbacksprovided(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 Sy tem— 0
12 Bioretention Cell 0
I. 13 'Wet Pond 0
14 Stormwater Wetland—i — [ 0
15 Permeable Pavement p
16 Sand Filter 0
17 Rainwater Harvesting(RWH) p
18 Green Roof p
_19 Level Spreader-Filter StfjLS-F�_—_ 0
20 Disconnected Impervious Surface(DIS) i 0
- ----- -----
21 Treatment Swale i 0
22 Dry Pond 0
23 StormFilter _ 0
24 Silva Cell
t
25 Bayfilter 0 -
26 Filterra
FORMS LOADED
DESIGNER CERTIFICATION
27 Name and Title: Fleet Temple,PE
28 Organization:29 Street address:
Fleet Temple Engineering,PLLC
5245 Red Hill Church Rd.
30 City,State,Zip: Coats, NC 27521
31 Phone number(s): 910-658-2446
32 iEmail:
[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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-AL _ Signature of Designer
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Sea/ ✓ J' Date

DRAINAGE AREAS
1_ Is this a high density project? l No I2 If so,number of drainage areaslSCMs 0 1
3 jDoes this project have low density areas?aj Yes
4 i If so,number of low density draine areas 1 1
Is allpart of this project subject to previous rule 'j
5 ;versions? 9 No j
FORMS LOADED I
DRAINAGE AREA INFORMATION Entire Site LD 1
4 T e of SCM 5
A
5 ;Total drains a area ft) 101534 _ ' 101534 a
6 IOnsite drains a area ft 63690 63690
7 Offsite drainage area(sq ft) 0 0
8 Total BUA in ' ct ft r 15000 sf 15000 sf
New BUA on subdivided lots(subject to permftting)
9 ft 15000 sf 15000 sf _
New BUA not on subdivided lots(subject to
10 permitting)(sf) sf sf
11 Offsite BUA(sq ft) sf
12 Breakdown of new BUA not on subdivided lots:
Parking(sq ft)
I -Sidewalk(sq ft)
Ir—Roof(sq ft)
Roadway(sq ft) i
i -Future(sq ft)
-Other,please specify in the comment box
belowsq ft - i1 ) %
1 f New infiltrating permeable pavement on )
13 subdivided lots(sq ft)
New infiltrati c
ng permeable pavement not on
14 subdivided lots(sq ft) sf 1 (
Existing BUA that will remain(not subject to i E.
15 permitting)(sq ft) r ;
16 Existing BUA that is already permitted(sq ft)
L 17 Existing BUA that will be removed(sq ft)
8 18 Percent BUA 23% ( 23%
1,19 Design storm(inches) 1.0 in 44 t 0 m v
t 20 Design volume of SCM(cu ft)
21 Calculation method for design volume
DITIONAL INFORMATION Y
Please use this space to provide any additional information about the
drainage areas
1
I
t

LOW DENSITY
DESIGN RE OlREMsNTs FOR LOW DENSITY PROJECTS FROM OZH,1003 a
1 Is project below density thresholds set forth in the applicable stormwater rule? Yes I
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) sf
5 Maximum velocity in the vegetated conveyances during the 10-year storm? 5 1
6 Are curb outlet swales proposed? Yes
7 Maximum longitudinal slope of curb outlet swale(s)(%) 6%
8 Bottom width of curb outlet swale(s)(feet) 4 ft
ir_
9 Maximum side slope of curb outlet swale(s)(H V) 3 1
10 1 Minimum length of curb outlet swale(s)(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 Have stormwater outlets been designed to prevent downslope erosion? Yes
il
14 Are variations to rule 1003 proposed? No
ADDITIONAL INFORMATION
15 Please use this space to provide any additional information about this low density project:
Swale Drainage BOA Pervious CI Slope V,x,,, V,�n,,, Flow depth
# Area (ac) area C (cfs) (%) (fps) (fps) (It) 1
(ac) _ (ac)
1 0.20 0.05 0 15 0 50 0 72 1 00 5.00 1.60 0.40 t
2 0 80 019 061 0 50 2 88 3 80 5 00 370 0.50
3 0.80 0 19 0 61 0 50 2 88 1 00 5.00 220 0 70
4 0 50 0.12 038 0 50 1.80 4.40 5.00 3 40 0.40
5 0.50 0.12 0 38 0 50 1 80 1.30 5.00 220 0 50
6 0.50 0 12 0.38 0 50 1 80 5.60 5.00 3.80 0.40
7 050 0.12 0.38 0.50 1.80 1-70 5.00 2-40 0-50
8 0.20 0 05 0.15 0.50 0 72 2.20 5 00 2 00 0.30
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