SW4231203_Supplement-EZ Form_20240214

SUPPLEMENT-EZ COVER PAGE
1
PROJECT INFORMATION
1 Project Name Noland Farm
2 Project Area(ac) - 14.55
L—3 Coastal Wetland Area ac) n/a
4 Surface Water Area(ac) — - rife
I.
5 Is this project High or Low Density? Low
g 'Does this project use an off-site SCM? _- No
{COMPLIANCE_ WITH 02H.t (4)
7 Width of vegetated setbacks provided(feet) Jam- 30
8 Will the vegetated setback remain vegetated' -. -N VES
9 If BUA is proposed in the setback,does it meet NCAC 02H.1003(4)(c-d)? WA
10 Is streambank stabilization proposed on this project? _— No
NUMBER AND TYPE OF SCMs: �t II
L 11 Infiltration System N/4-
12 Bioretention Cell
13 Wet Pond
14 Stormwater Wetland
15 Permeable Pavement
16 Sand Filter
17 Rainwater Harvesting(RWH)
18 Green Roof
19 ,Level Spreader-Filter Strip(LS-FS)
20 Disconnected Impervious Surface(DIS)
21 Treatment Swale
22 !Dry Pond
23 iStormFilter
24 Silva Cell 25 Bayfilter V
26 Filterra
I FORMStOADED I
(DESIGNER GERTt [CATION
27 Name and Title: Paul A.Stimpson,PE Regional Leader
28 .Organization: LaBeUa Associates,PC t.*o 3t2
29 Street address: 939 Burke Street,Suite H
30 City,State.Zip: Winston-Salem,NC 27101
31 Phone number(s): - [phone]
i 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 vonsistent withthe information provided here.
Designer >>ttttllilf/irj
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Signature of Designer
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LOW DENSITY
loom IEQWREITs FOR Low DENSITY PROJECTS FROM azttawo
stormwater rule? Yes
1 is_project below density thresholds set forth in the applicable - - -
2 Does project maximize dispersed flow and minimize channelization of flow?
Yes
3 Has the use of piping been minimized per 1003(2)(cr Yes 3HaV- -
4 Side slopes of the vegetated conveyances(H:V) -- 91 3
l_ 5 ;Maximum velocity in the vegetated conveyances during the 10-year storm? _ -- !•
6 Are curb outlet swalesproposed"_ No
i�
7 Maximum longitudinal slope of curb outlet swale(s)(%) - __
4-
B _ Bottom width of curb outlet swale(s)(feet) -_ -- - - A4 -
9 Maximum side slope of curb outlet swale(s)(H V) -- _ - - -L�/I4
�10 Minimum length of -/1
curb outlet swale(s)(feet) f�� -
11 Are treatment swales used instead of curb outlet swales? - _ AC - C
~ e
12 Is stormwater released at the edge of the setback as dispersed flow? - - -
Yes
13 Have stormwater outlets been designed to prevent downslope erosion? e
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
Pervious '' l Slo V,p,� V,m,,, Flow depth
Drainage 1 Q pe
Swale (acl_ 1 (cA1 I area (c(s) (%) (�) (Ms) (ft)
I rr
1 1 OS' 4_14 `i I,-3I j 0.5C) ,5.,0 2.28 5.00 3.Vj 4+'o
22 126 974 1.12 0.50 1 4.38 2.10 5.00 3.03 ; 0.44
3- 0,31, 0.14 0 17 l 0.50 1.08 4.83 5.00 2.66 I 0.16
l4 0.30 0.09 .21 0.50 1.04 1 3.60 1 5.00 2.37 1 0.17
5 0.31 0.08 023 0.50 1.08 3.60 5.00 2A0 1 0.18
► 6 0.17 0.07 0.10 0.50 0.59 3.30 5.00 1.91 0.13
+ (
I 7 1.80 I 0.71 I 1.09 0.50 6-26 i 4.57 j 5.00 4.63 0.66
1, 8 0.62 I 0.27 0.35 I 0.50 2.16 'f 3.90 1 500 3.33 , 0.45
j 9 0.65 027 ! 0.38 I 0.50 II 2.26 j 3.90 I 5.00 j 3.37 I 0A6
r 10 0.52 0.16 1 0.36 0.50 1.81 1 5.40 5.00 1 3.61 0.39
L11 288 r 0.611 j 220 0.50 ' 10.02 4.69 ' 5.00 , 4.91 I 0-46
Po . 2-

DRAINAGE AREAS
I Is this a high density project? i No
2 If so,number of drainage areas/SCMs I 0
3 Does this project have low density areas? Yes
4 If so,number of low density drainage areas 2
Is all/part of this project subject to previous rule
5 versions? No
IFORMS LOADED I
DRAINAGE AREA INFORMATION Entire Site LD 1 LD 2
4 Type of SCM , grass swales , grass swales grass swales
5 Total drainage area(sq ft) 633,798.00 493,464.22 140,333.78
6 Onsite drainage area(sq ft) 633,798.00 493,464.22 _ 140,333.78
l 7 Offsite drainage area(sq ft) 0.00 0.00 0
8 Total BUA in project(sq ft) 102572 sf 82950 sf 19622 sf
New BUA on subdivided lots(subject to
9 permitting)(sq ft) 76000 sf 60000 sf 16000 sf
New BUA not on subdivided lots(subject to
10 permitting)(sf) 26572 sf 22950 sf 3622 sf
11 Offsite BUA(sq ft) sf sf sf
12 'Breakdown of new BUA not on subdivided lots:
-Parking(sq ft) sf sf sf
I -Sidewalk(sq ft) sf sf sf
1 -Roof(sq ft) sf sf sf
-Roadway(sq ft) 26572 sf 22950 sf 3622 sf
-Future(sq ft) sf
-Other,please specify in the comment box
below(sq ft) sf sf sf
New infiltrating permeable pavement on
13 subdivided lots(sq ft) sf sf sf
New infiltrating permeable pavement not on
14 subdivided lots(sq ft) sf sf sf
Existing BUA that will remain(not subject to
15 permitting)(sq ft) sf sf sf
16 `Existing BUA that is already permitted(sq ft) _ sf sf sf
17 Existing BUA that will be removed(sq ft) sf sf sf
18 Percent BUA 16% 17% 14%
19 Design storm(inches) not applicable not applicable not applicable
20 Design volume of SCM(cu ft) not applicable not applicable not applicable
21 Calculation method for design volume not applicable not applicable not applicable
ADDITIONAL INFORMATION
Please use this space to provide any additional information about the 1
22 .drainage area(s):
9 3
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