SW6240105_Supplement-EZ Form_20240424

SUPPLEMENT-EZ COVER PAGE
FORMS LOADED
"PROJECT INFORMATION n " _,._
1 Project Name �� Elyse Meadows Subdivision
2 Project Area(ac) 114.72
3 _Coastal Wetland Area(ac) 0
4 :Surface Water Area(ac) 0.71
t5 Is this project High or Low Density? Low
6 Does this project use an off site SCM? No
'COMPLIANCE WITH 02H 1003(4)
4 7 Width of vegetated setbacks provided(feet) 30
8 Will the vegetated setback remain vegetated? Yes
3 9 •If BUA is proposed in the setback,does it meet NCAC 02H 1003(4)(c-d)? •
N/A
i 10 •Is streambank stabilization proposed on this project? No
NUMBER AND TYPE OF SCMs:
I 11 Infiltration System
12 ,Bioretention Cell I
13 ;WetPond I
1 14 Stormwater Wetland I
115 iPermeable Pavement )
16 iSand Filter i
I 17 Rainwater Harvesting(RWH) ._,
t 18 Green Roof i
1 19 •Level Spreader-Filter Strip(LS-FS) I
20 Disconnected Impervious Surface(DIS) i
{ 21 •Treatment Swale
3 22 Dry Pond
1 23 ;StormFilter a
a
24 Silva Cell
25 Bayfilter
26 •Filterra
�... �,..�.._. ._.. _,.._. ....w....,.__._ aws. .M_w-
FORMS LOADED
DESIGNER CERTIFICATION
L 27 .1 Name and Title: C.Scott Brown,PE
28 ;Organization: 4D Site Solutions, Inc.
i 29 :Street address: 409 Chicago Drive-Ste 112
30 City,State,Zip: Fayetteville, NC 28306
I 31 !Phone number(s): 910-426-6777
i32 'Email: [e-mail] j
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
``0,11 hit,,,
,rci\xp._..c4.. ... ..„ 0,:v.... -9, -', \ i ),: iljt)4
_ :\. S E.A� = Sigature Designer
027452 =
;
0 .'.E NGINE � ?.'
Seal Date

DRAINAGE AREAS
1 ils this a high density protects No
2 a If so number of drainage areas/SCMs 0
3 Does this protect have low density areas? Yes
4 I If so,number of low density drainage areas 1
Is all/part of this project subject to previous rule 1
j 5 aversions? No
FORMS LOADED
DRAINAGE AREA INFORMATION Entire Site 1 LD 1
& 4 !Type of SCM I Low Density 1 Low Density )
5 :Total drainage area(sq ft) t 4,997,203 4,997,203 e
t 6 IOnsite drainage area(sq ft) 4,997,203 4,997,203
7 'Offsite drainage,area(sq ft) 0 0
8 Total BUA in project(sq ft) _ 1162475 sf 1162475 sf
l 1New BUA on subdivided lots(subject to t i
9 :permitting)(sq ft) 945000 sf Os 945000 sf
New BUA not on subdivided lots(subject to
tOl,10 a permitting)(sf) 217475 sf k 217475 sf `1-
11 4Offsite BUA(sgft) ._
i
12 !Breakdown of new BUA not on subdivided lots t
Parking(sq ft).. q
Sidewalk(sq ft), t g t
Roof(sq ft)
Roadway(sq ft) t 217475 sf 1 217475 sf i
Future(soft) r
I Other, please specify in the comment box
1 }below(sq ft) ti
New infiltrating permeable pavement on =
( 13 :subdivided lots(sq ft) ) )
(New infiltrating permeable pavement not on
IIt_..
114 :subdivided lots s ft . 1: t
, 'Existing BUA that will remain(not subject to {,
rR
( 15 :permitting)(sq ft)_. z 4:
16 !Existing BUA that is already permitted(sq ft) Y
17 Existing BUA that will be removed(sq ft) z 4.
18 IPercent BUA 23% i 23°k
19 !Design storm(inches) 0 4
A
20 !Design volume of SCM(cu ft) `u Y
21 'Calculation method for design volume
:ADDITIONAL INFORMATION_ _
t ;Please use this space to provide any additional information about the t
22 !drainage area(s): p

LOW DENSITY
DESIGN RE UIREMENTS FOR LOW DENSITY PROJECTS FROM 02H.1003
1 Is project below density thresholds set forth in the applicable stormwater rule? Yes
k 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) 3
t 5 Maximum velocity in the vegetated conveyances during the 10-year storm? 7.85 o
K 6 :Are curb outlet swales proposed? No I
1 7 • Maximum longitudinal slope of curb outlet swale(s)(%) N/A
8 Bottom width of curb outlet swale(s)(feet) • N/A
9 Maximum side slope of curb outlet swale(s)(H:V) N/A t
10 Minimum length of curb outlet swale(s)(feet) N/A
11 Are treatment swales used instead of curb outlet swales?
12 'Is stormwater released at the edge of the setback as dispersed flow? Yes 4
,
13 Have stormwater outlets been designed to prevent downslope erosion? Yes I
14 Are variations to rule 1003 proposed'? No t
ADDITIONAL INFORMATION
15 Please use this space to provide any additional information about this low density project:
t
1
Drainage Pervious
Swale BUA Q Slope V.,,,,,, V.n,., Flow depth
#
lac) tact
Area {(tic) area C (cfs) (%) (fis) (1Ps) (ft)
1 0.13 0.06 0.07 0.60 0.60 0.50 4.50 0.55 0.52
2 0.61 0.14 0.47 0.45 2.12 0.50 4.50 0.86 0.83
3 0.12 0.06 0.06 0.60 0.56 0.55 4.50 0.57 0.50
4 0.49 0.11 0.37 0.45 1.69 0.55 4.50 0.84 0.74
6 0.25 0.11 0.13 0.60 1.14 2.50 4.50 1.76 0.39
6 0.82 0.19 0.63 0.45 2.84 2.50 4.50 2.44 0.55
7_. 0.98 0.23 0.76 0.45 3.41 2.50 4.50 2.60 0.58
8 0.35 0.16 0.19 0.60 1.63 2.50 4.50 2.01 0.44
9 1.81 0.42 1.39 0.45 6.28 2.70 4.50 3.23 0.54
10 0.34 0.08 0.26 0.45 1.16 1.20 4.50 1.16 0.50
11 0.08 0.04 0.04 0.60 0.36 1.20 4.50 • 0.77 0.32
12 3.28 0.76 2.53 0.45 9.12 0.66 4.50 • 1.68 1.27
13 0.25 0.12 0.14 0.60 1.17 0.66 4.50 0.82 0.61
14 3.45 0.80 2.65 0.45 4 9.58 1.75 4.50 3.02 0.95
16 0.15 0.07 0.08 0.60 0.70 1.00 4.50 0.87 0.44
16 0.80 0.18 0.62 0.45 2.78 1.50 4.50 1.79 0.64
17 0.56 0.26 0.30 0.60 2.07 1.50 4.50 1.62 0.58
18 0.90 • 0.21 0.69 0.45 3,13 8.50 5.13 5.13 0.37
•
19 0.79 • 0.36 0.43 • 0.60 2.93 9.00 5.20 5.20 0.36
20 1.01 0.23 0.78 0.45 3.51 13.00 6.87 6.87 0.34
21 1.08 0.25 0.83 0.45 3.74 9.00 5.10 5.10 0.26
22
0.80 0.37 0.43 0.60 2.96 6.70 4.00 3.96 0.27
23 0.28 0.13 0.15 0.60 1.30 3.40 4.50 • 2.22 0.37
24 0.39 0.18 0.21 0.60 1.79 3.40 4.50 2.48 0.41
25 0.63 0.29 ' 0.34 0.60 2.92 4.80 4.50 3.60 0.44
26 0.68 • 0.31 0.36 0.60 3.14 6.00 2.00 1.64 , 0.18
27 3.63 0.84 2.80 0.45 10.09 • 1.40 4.50 2.65 0.84
28 0.83 0.26 • 0.58 0.50 3.21 2.50 4.50 2.54 0.57
29 21.71 1.45 20.26 0.25 33.48 1.00 2.00 1.69 • 2.25
30 38.84 ; 2.59 36.25 0.25 50.50 1.00 2.00 1.88 • 2.68

Low Density(continued)
Drainage j Pervious ( i BUA Q , Slope j Van. Vactual Flow
Swale# Area
h area = C
(ac) (ac) (acl s (cfs) (%) (fps) (fps) depth(ft)
31 3.38 0.78 2.60 I 0.45 ; 9.39 0.50 4.50 I 1.44 1.39
32 021 010 i 011 060 099 4 050 450 1 066 063
33 0.86 0.27 4 0.60 t 0.50 I 3.33 _0.59 4.50 1.11_ I 0.92
35 _..._ . 1.63 d 0.38 ._. _._.1.26 m 0.45 5.67. t 2.60 _ 4.50 ._ - 3.18 0.69
34 0 12 0.06 0 07 0 60 3 0.56 0.59 4.50 0 59 0.48
,. ...._.___®_.__ .._.__4__._.. _._ _ __ 6.__.___
36 0.23 0.11 0.12 's 0.60 l 1.05 2.10 4.50 1.55 0.40
___.I_ ___._.__t._.._ .._ _._
37 0 39 0 18 0 21 3 0.60 1 1.81 s ~4.30 ; 4.50 2.85 0.38
_ .__ .__ __
38 2 07 0 64 1 43 0.50 5.70 5 37 5.37 ' 0.45
7 99
39 2.23 0 51 1 72 0.45 1 6.20 ; 0.50 2.00 ! 1.25 t 1.21
40 1.76 0.41 1.35 0.45 [ 6.11 2.00 4 50 2.79 0.77
4.50
41 0.87 0.20 0.67 0.45 3.04 2.30 ,.___ 2.38 0 57
-
42 0.11 0.05 0.06 ; 0.60 0.49 s 2.30 4.50 , 1.25 0.29
43 2.31 0.71 I 1.60 j 0.50 I 8.93 j 7.70 7.03 E 7.03 0.57
44 0.51 0.24 ' 0.28 0.60 2.38 I 7.70 4.42 4.42 ! 0.35
45 494 114 I 380 t 045 I 1372 400 557 557 083
46 4.83 1.11 3.72 ! 0.45 16.78 1 1.20 4.50 ; 2.95 ; 1.30
47 1.67 0.51 1.16 0.50 Z 6.45 1.20 4.50 ; 2.11 0.93
. . t
48 4.58 1.06 3.52 I 0.45 15.90 6.60 7.85 I 7.85 0.74
49 1.50 0.46 ' 1 04 ; 0.50 5.80 • 6.60 5.52 5.52 0.51
, _.,_
50 2.43 0.56 '1 87 I 0 45 8 44 I 4 80 ! 5 23 5 23 0 66
51 0.15 0.07 0.08 0.60 070 480 4.50 2.17 4 0.25
__ .__. __._____ _52 1.36 0.31 1.04 g 0.45 4.71 0.80 4.50 I 1.49 0.95
53 1.20 1 0 28 0 92 1 0 45 4 17 1 0.50 4.50 1.09 1.05
54 2.03 0.47 1.56 1 0.45 7.06 ; 3.00 4.50 { 3.73 0.71
55 3.43 1 0.79 2.64 , 0.45 9.53 I 2.60 4.50 3.81 0.83
__r.._._.._. .__..._..._ �_.._ ____.. ..._. . . ..______ . ._ _._ 1 .._._.__ 1.----_._ ..____ - ..___,....
56 0.28 0.13 0.15 0.60 1.32 2.60 4.50 1.90 ( 0.40
57 3.57 1.10 2.47 0.50 11.02 ; 7.00 7.16 7.16 ! 0.64
58 0.42 0.19 I 0.23 1 0.60 1.95 6.00 4 50 ; 3 57 0.35
59 4.15 1.28 2.88 0.50 12.81 5.00 5.96 5.96 0.58
60 0.20 0.09 0.11 0.60 0.93 i 2.00 4.50 1.44 0.39
Drainage Pervious i !
Swale# Area BUA area C Q Slope V,l,,a, Vactual Flow
(ad) (ac) 1 (ac) (cfs) I (%) (fps) (fps) depth(ft)
61 1.78 041 1.37 I 045 618 200 4.50 281 078
62 7.08 1.63 ' 5.45 0_45_ ._ .. 19.:66.._..___1..90 ..._.4 50 i _._4.02 _ 0 99 ._.
63 7.22 1.67 5.55 0.45 20.05 4.40 6.55 6.55 0.73
64 0.17 0.08 0.09 0.60 : 0 80 ! 0.50 4 50 0.61 0.58
65 4.71 ._.. 1.09. ,. 3.62 0 45 16.36 _ 0.50 4.50._ 1.75_..+ 169. ..
66 0.20 0.090.26 0,87 0.45 3.93 s 0.50 4 50 0.64 E 0.61
67 1.13 0.50 4.50 1.06 1.03
68 0.10 0.05 0.05 0.60 0.46 6.80 4.00
69 0.29 i 0 13 0.15 0 60 I 1 33 1 6.80 4.00 3.34 0.29
70 0.32 0.15 0.17 0.60 ' 1.48 5 9.00 4 06 4 06 j 0.27
71 0.93 ! 0.28 0.64 , 0.50 3.57 3.00 4.50 ° 2.76 s 0.40
72 0.42 0.13 0.29 0.50 1.63 11.00 44. .75 L 4.75 0.27
73 0.90 0.21 0 69 0 45 3.11 4.50._. ._.1.42_ 0.58_--