SW6231112_Supplement-EZ Form_20240409

SUPPLEMENT-EZ COVER PAGE
FORMS LOADED
PROJECT INFORMATION
1 'Project Name Brayden Preserve Subdivision
2 ;Project Area(ac) 69.93
3 Coastal Wetland Area(ac) 0
4 1Surface Water Area(ac) 0
5 Is this project High or Low Density? Low t
�. _.�
6 Does this project usean off site SCM? No
COMPLIANCE WITH 02H.1003(4)
7 i Width of vegetated setbacks provided(feet) 30
8 Will the vegetated setback remain vegetated? Yes
9 If BUA is proposed in the setback,does it meet NCAC 02H.1003(4)(c-d)? N/A
10 !Is streamtsank stabilization proposed on this project? No
NUMBER AND TYPE OF SCMs:
11 Infiltration System
12 ;Bioretention Cell r
13 ;Wet Pond
14 Stormwater Wetland
15 Permeable Pavement
16 ,Sand Filter
17 `Rainwater Harvesting(RWH)
18 tGreen Roof
19 Level Spreader-Filter Strip(LS-FS)
20 ;Disconnected Impervious Surface(DIS)
21 'Treatment Swale
22 Dry Pond
23 StormFilter
24 .,Silva Cell
25 ;Bayfllter 26 Filterra
FORMS LOADED
DESIGNER CERTIFICATION
27 ;Name and Title: C.Scott Brown,PE
28 ,Organization:
4D Site Solutions, Inc
29 ,Street address: 409 Chicago Drive-Ste 112
30 ,City,State,Zip: Fayetteville,NC 28306
31 Phone number(s): 910-426-6777
32 ,Email: [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 /\
4,.____
\SEAL = Signature of D igner
027452 =
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O goo; di.%)9,
_31'Zit
Seal Date

DRAINAGE AREAS
1 i Is this a hi_gh density project? No
2 If so,number of drainage areas/SCMs 0
I
3
Does this project have low density areas? Yes J
4 I li-so number of low density draina_g_e areas -1
-- --- - ------1
Is ail/paitof this project subject to previous rule
r oRms LOADED
DRAINAGE AREA INFORMATION I Entire Site LD 1
ultevamamrmaa....wrmorramaugvvmszoxrm.,...c.,,,,,,,,,....,m,,,,---ws, ,,a,a5,,,•n,x5-,.,r4"..........,,,. ...°.'...,.. ...,-"'".".....2.'-..-..
4 IType of SCM Low Density Low Density
5 1Total drainage area(sq ft) , 3,046,153 3 046 153
6 Onsite drainage area(sq ft) 3946,163 3„046,153
7 19ffsite drainage__area(sq,ft) 0 o
8 i Total BUA in project(sq,ft) 526876 sf 526876 sf
--1
New BUA on subdivided lots(subject to
1
9 permitting)(sq ft) 1 408000 sf - 408000 sf
New BUA not on subdivided lots(subject to I
10 Ipermitting)(sf) 118876 sf ' 118876 sf 1
11 1 i Offsite BUAlsq ft),_ sf
i
12 __IBreakdown of new BUA not on quhrlivaried,lots: ,.
I -Parking(sq ft) ,
. -Sidewak(eqftl
I-- ,
___1 -poolls_q_f_t1
Li -:-Foadwey(sq ft) , 118876 sf ',, 118876 sf
.
-Future_(s_qft)
I
1
-ii -Other, please specify in the comment box
__ ibelow(Nit), I
New infiltrating permeable pavement on
03, _lsubdivided lots(salt) t_ I i
1New infiltrating permeable pavement not on
1_14 'subdivided lots(sq, ft),
1
lExisting BUA that will remain(not subject to 1--
i 1 _
15 permitting)(sq ft)
16 Existing BUA that is already permitted(sq ft),17 iExisling_BliA that will be removed(sq ft)
18 !Percent BUA
_.. 17% . 17% --- —
,19 _jDesig_n storm(Inches) _ _ , ,
:20 LDesign volume of SCM(cu ft) _...,„
-21 Ceiculation method for design volume
ADDITIONAL INFORMATION
_
I Please use this space to provide any additional information about the
22 Jdrainage area(s):
1.
i
I

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
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
5 Maximum velocity in the vegetated conveyances during the 10-year storm? 5
6 !Are curb outlet swales proposed? No
7 ! Maximum longitudinal slope of curb outlet swale(s)(%) N/A
N/A
8 i Bottom width of curb outlet swale(s)(feet)
9 Maximum side slope of curb outlet swale(s)(H:V) N/A
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
13 j Have stormwater outlets been designed to prevent downslope-erosion? Yes
14 ,Are variations to rule.1003 proposed? : No
ADDITIONAL INFORMATION
15 'Please use this space to provide any additional information aboutthis low density project.
Swale Drainage j BUA Pervious ! q Slope i Va.., 1 V.n,w i Flow depth
# Atacl (ac) feel C (cfs) (%) (fp i
rea s) (fPs) ! (n)
1 0.14 0.03 0.11 0.45 1 0.48 9.00 5.00 2.71 0.17
2 0.38 0.09 0.29 0.45 1.32 5.00 5.00 i 2.79 0.32
3 0.74 0.17 0.57 0.45 2.55 7.20 5.00 4.35 0.37
4 0.58 0.13 0.44 0.45 2.00 7.20 5.00 3.99 0.33
6 0.82 0.19 0.63 0.45 2.82 2.30 . 5.00 I 2.31 0.56
•6 3.32 0.77 2.55 0.45 11.47 2.30 5.00 3.78 0.93
7 1.82 0.42 1.40 0.45 6.31 1.60 _5.00 2.48 0.84
8 5.27 1.22 4.06 : 0.45 18.25 0.84 2 00 1.52 1.69
9 637 0.09 0.29 0.45 1.29 4.00 i 5.00 i 2.43 0.35
10 0.68 0.16 0.53 0.45 I 2.37 4.00 I 5.00 3.01 0.44
11 1.14 0.26 0.88 0.45 3.96 ' 5.90 5.00 ; 4.16 0.32
12 1.62 0.37 1.25 0.45 5.60 2.60 5.00 ; 3.16 0.69
13 4.02 0.93 ' 3.09 0.45 13.91 2.60 5.00 ; 4.34 0.95
.
14 0.06 0.01 0.05 0.45 0.21 5.00 5.00 1.43 0.15
16 1.78 0.41 1.37 0.45 6.16 5.00 5.00 4.79 0.58
16 1.40 032 1.08 0.45 4 1.70 5 QO Z35 0.75
17 7.03 1.62 , 5.41 0.45 24.32 1.00 5.00 2.99 1.35
18 2.05 0,47 1.57 ; 0.45 7.08 5.00 5.00 3.87 0.70
19 0.38 0.09 Q 30 0.45 1.33 5.00 5.00 2.79 0.32
20 1.13 0.26 0.87 0.45 3.92 0.57 5.00 1.15 0.99
21 2.18 0.50 168 0.45 7.55 + 2.90 5.00 3.74 0.74
22 0.95 0.15 i.___ 0 81 0.40 2.93 ' 1.60 5.00 1.90 0.64
-23 10,77 1.66 9.11 0:40 3314 1.60 -5.004.42 1.50
24 0.88 0.14 0.74 0.40 2.70 4.00 5.00 I 3.15 0.46
i
26 0.41 0.06 0.34 : 0.40 1.25 2.00 5.00 1.60 ! 0.43
26 3.13 0.48 2.65 i 0.40 9.64 5.40 5.00 4.50 1 0.76
27 0.38 0.06 , 0.32 0.40 1.16 5.40 5.00 2.78 , 0.30
28 4.01 0.62 3.39 0.40 12.33 2.30 5.00 3.79 0.76
29 0.55 0.08 ! 0.47 0.40 1,70 5.50 5.00 3.22 0.34
5.50 5.00 ,4,70 0.65
� 3:42 � 0.53 2.89 QAO 10.51 ,

Low Density(continued)
Drainage I G Pervious s '
4
BUA R I Q I Slope I Va„ow Vactua, Flow
Swale# Area 6
tac) s ) ` (acl C
I i -(om) ! -tom) I t s) I 't�s) 1 hift)
31 0 31 0 05 a_ 0 26 L 0_40 ` 0.96 1 4.50 1 5.00 ! 2.34 I 0.30
_ , . . _
32 1.51 0.23 I 1.28 I 0.40 1 4.64 1 4�4.50 5.00 4.08 0.54
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