SW6240401_Supplement-EZ Form_20240805

SUPPLEMENT—EZ COVER PAGE
FORMS LOADED
PROJECT INFORMATION
1 Project Name Maple Drive
2 Project Area(ac) 1
1.46
3 Coastal Wetland Area(aA 0
4 Surface Water Area(ac) 0
5 GIs this__project High or Low Density? Low
6 I Does this project use an off-site SCM? No
COMPUANCE WITH 02H.1003(4)
7 Width of vegetated setbacks provided(feet) I. 30
j 8 Will the vegetated setback remain vegetated? i, Yes
9 ?N BUA is proposed in the setback,does it meet NCAC 02H.1003�4Ec-_d)? . N/A
t 10 Is streambank stabilization proposed on this project? No
NUMBER AND TYPE OF SCMs:
11 Infiltration System i 0
12 Bioretention Cell 0
13 Wet Pond 0
14 tStormwater Wetland 0
15 Permeable Pavement ' 0
16 Sand Filter ... 0
17_ Rainwater Harvesting(RWH)
18 Green Roof 0
19 Level Spreader-Filter Strip(LS-FS) 0
20 Disconnected Impervious Surface(DIS) I' 0
1 21 Treatment Swale 0
22 Dry Pond 0
23_ StormFilter i 0
24 Silva Cell i 0
25 Bayfiker 0
26 Flterre j- _
0
FORMS LOADED
KAMER CERTIFICATION .
27 Name and Tide: Fleet Temple, PE
28 Organization:
f ___ ____ Fleet Temple Engineering, PLLC
29 Street address: 5245 Red Hill Church Rd.
30 City,State,Zip: Coats,NC 27521
31 Phone numbers): 910-658-2446
32 Email: [e-mail] z
Certification Statement
I certify,under penalty of law that this Supplement-EL 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
( 1 Is this a high density project? ----.^No
I.
2 If so,number of drainage areas/SCMs 0
3 :Does this project have low density areas? Yea
4 If so,number of low density drainage areas I-__- 1
Is all/part of this project subject to previous rule
5 !versions? — — I' No
FORMS LOADED
DRAINAGE AREA INFORMATION Entire Site LA 1
i4 Type of SCM
5 !Total drainage area(sq ft) 101534 I 101534
6 Onsite drainage area(sq It) 63690 i 63690
7 1,Oftsite drainage area(sq ft) ----- 0 3 0
8 Total BUA in protect(sc ft) 15000 sf 15000 sf
,New BUA on subdivided lots(subject to permitting)
9 I sq ft) 15000 sf 15000 sf
New BUA not on subdivided lots(subject to
10permitting)(sf) r sf of
T _ —
11 Matte BUA(sq ft) sf
12 j Breakdown of new BUA not on subdivided lots: 1
-Parking(sq ft) *,__.__._.---___..__—_--
-Sidewalk(sq ft) --- ,-- -------_ �_.-----_—.._.__
-Roof(sq ft) - t
-Roadway(sq ft)
-Future(sgft) — ..
-Other,please specify in the comment box
below(sq ft)
New infiltrating permeable pavement on
13 subdivided lots(ssq ft_t
New infiltrating permeable pavement not on
14 !subdivided lots(sq ft) sf—
I Existing BUA that will remain(not subject to
t ?:
15 permitting)(sq ft) — --- — i —
16 Existing BUA that is already permitted(sq ft) f
17 Existing BUA that will be removed(sq ft)
18 Percent BUA 23% 23% r
19 Design storm(inches) __-1_0 in ___ _ 1.0 in
20 .Design volume of SCM(cu ft)
21 Calculation method for design volume
0. ntiramemeeenernaroomaiv
pADDIT7ONAL INFORMATION
Please use this space to provide any additional information about the
22 drainage area(s):

LOW DENSITY
s .. .. .
.E N REQUIREMENTS FOR LOW DENSITY PROJECTS FROM 02H4_1003
1 Is project below density thresholds set forth in the applicable stormwater rule? Yes
2 Does project maximize dispersed flow and minimize channelizalion of flow? Yes 4
r
3 Has the use of piping been minimized per.1003(2Xc)? Yes i
4 Side slopes of the vegetated conveyances(H:V) 31
5 Maximum velocity in the vegetated conveyances during the 10-year storm? _ 3.8
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) 9
10 Minimum length of curb outlet swale(s)(feet)
11 , Are treatment swales used instead of curb outlet swales? — — Yes
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
14 .Are variations to rule.1000 proposed?
ADDITIONAL INFORMATION
15 Please use this space to provide any additional information about this low density project:
fi
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i
Drainage Pervious
Swale BUA Q Slope V,,,,,, V,«„ Flow depth
Area area C
# (ac) (cfs) (%) Ifpf) MA) (8)
1 020 0.05 0.15 0.50 0 72 1 00 5.00 1 60 0.40 r
•2 0 80 0 19 0 61 0 50 2 88 3 80 5 00 3 70 050
3 080 0.19 061 050 288 100 500 220 070
4 050 012 038 0.50 180 440 500 340 040
5 0.50 0 12 0.38 0 50 1 80 1 30 5 00 220 0 50
. 6 050 0.12 038 050 180 500 500 380 040
7 0 50 012 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 3.60 0.30
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