SW4240101_Supplement-EZ Form_20240129

SUPPLEMENT-EZ COVER PAGE
FORMS LOADED
PROJECT INFORMATION
1 Project Name Lakeside Subd.Phase One Forsyth County
2 Project Area(ac) 18.318
3 Coastal Wetland Area(ac) N/A
4 Surface Water Area(ac) N/A
5 Is this project High or Low Density? Low _
6 Does this project use an off-site SCM? No
COMPLIANCE WITH 02H.1003(4)
1 7 Width of vegetated setbacks provided(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 System 0
12 Bioretention Cell 0
13 Wet Pond 0
14 Stormwater Wetland { 0
15 Permeable Pavement 0
16 Sand Filter
i 0
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
25 Bayfilter 0
26 Filterra 0
FORMS LOADED
DESIGNER CERTIFICATION
27 Name and Title: Norris Z.Clayton,P.E.
28 Organization: j Hugh Creed Associates,Inc., P.A.
29 Street address: 1306 W.Wendover Ave
30 'City,State,Zip: Greensboro,NC 27408
31 Phone number(s): 336-275-9826 -
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.
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Seal Date

DRAINAGE AREAS
1 Is this a high density project? No
2 If so,number of drainage areas/SCMs 0
3 Does this project have low density areas? Yes
4 If so,number of low density drainage areas 1
Is all/part of this project subject to previous rule
5 versions? No
FORMS LOADED
DRAINAGE AREA INFORMATION Entire Site LD 1
4 1 Type of SCM N/A N/A
i 5 Total drainage area(sq ft) N/A N/A P
6 Onsite drainage area(sq ft) 797,941 797,941
a 7 !Offsite drainage area(sq ft) N/A N/A
8 ;Total BUA in project(sq ft) 112989 sf 112989 sf
_ !New BUA on subdivided lots(subject to permitting)
9 i(sq ft) 90000 sf 90000 sf
t INew BUA not on subdivided lots(subject to
10 i Reim ittirig)(sf) 22989 sf 22989 sf
11 lOffsite BUA(sq ft)
12 Breakdown of new BUA not on subdivided lots:
-Parking(sq ft)
-Sidewalk(sq ft)
-Roof(sq ft)
Roadway(sq ft)-Future(sq ft)
22989 sf 22989 sf
-Other,please specify in the comment box
below(sq ft) .
New infiltrating permeable pavement on��
13 subdivided lots(sq ft) k 0 sf 0 sf
New infiltrating permeable pavement not on i
14 subdivided lots s ft 1 0 sf 0 sf
,Existing BUA that will remain(not subject to
15 1permitting)(sq ft) 1 0 sf 0 sf
16 Existing BUA that is already permitted(sq ft) 0 sf 0 sf
17 Existing BUA that will be removed(sq ft) 0 sf r 0 sf
18 Percent BUA 14% 14%
19 Design storm(inches) 1N/A N/A
20 Design volume of SCM(cu ft) - 1 N/A N/A
21 Calculation method for design volume N/A N/A
,ADDITIONAL INFORMATION
t _ Please use this space to provide any additional information about the
22 ldrainage area(s):
k
F

LOW DENSITY
ri,.NRE• *ill LOW D
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) sf
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)(%)
8 Bottom width of curb outlet swale(s)(feet)
9 Maximum side slope of curb outlet swale(s)(H:V)
10 Minimum length of curb outlet swale(s)(feet)
11 Are treatment swales used instead of curb outlet swales? _
12 Is stormwater released at the edge of the setback as dispersed flow? No
13 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 about this low density project:
Project uses ribbon pavement with roadside swales with 3:1 side slopes
Swale
Drainage BUA Pervious Q Slope V.', V,n,,,, Flow depth
Area area C
# (ac) (ac) (ac) ..-.._- (cfs) (%) I (fps) I (fps) I (ft)
1
---4
_ -
5 +
6 i
10 I
11 I 1
-12 J
13 ' I [r
14
15 � 0.45 0.10 I 0.35 0.40 1.17 8.00 ) 5.00 4.20 0.04
16 0.68 0.20 0.48 0.40 1.77 8.00 I 5.00 I 4.60 0.40
17
18
19 0.46 0.14 0.32 0.40 1.20 6.00 5.00 3.70 0.35
20 0.15 0.70 0,80 0.40 0.39 6.00 5.00 2.90 0.25
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