SW6231204_Supplement-EZ Form_20240725

SUPPLEMENT-EZ COVER PAGE
FORMS LOADED
PROJECT INFORMATION
1 Project Name Starz Gas Station
2 Project Area(ac) 64.4
3 ;Coastal Wetland Area(ac) 0
•
4 !Surface Water Area(ac) 0
5 Is this project High or Low Density? Low
l 6 Does this project use an off-site SCM? No
COMPLIANCE WITH 02H.1003(4)
i 7 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 streambank stabilization proposed on this projects No
NUMBER AND TYPE OF SCMs.
11 Infiltration System
t 12 Bioretention Cell gIg
13 ;Wet Pond j
9 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 StormFilter
a 24 Silva Cell
25 Bayfilter I
26 !Filterra
FORMS LOADED
DESIGNER CERTIFICATION_
27 i Name and Title: C.Scott Brown,PE
28 yOrganization: 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
r 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.
Deslriner
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DRAINAGE AREAS
1 iis this a high density project? No
• 2 I If so number of drainage areas/SCMs 0
3 !Does this project have low density areas? Yes
4 If sol number of low density drainag 6
/-
e areas 1
f Is alUpart of this project subject to previous rule
(._5_versions?.. _...... No
FORMS LOADED
DRAINAGE AREA INFORMATION ntire Site L 1 1
4 IT e of SCM Low Density_ Low Density
5 Total drainage area(sg ft) 2 807 120 2 807 120
6 Onsite drainage area ft 2 807120 _ _2A807120
7 •Offsite drains earea( ft„
8 .Total BUA mproject(sq,ft)-. 196481 sf 196481 sf
New BUA on subdivided lots(subject to
9... permittin (s9.ft).. .
New BUA not on subdivided lots(subject to
10 I perm ittingy(sfj___-._ 144069 sf _ 144069 sf. Ii
11 }Offsite BUA�sq ft)
12 i Breakdown of new BUA not on subdivided lots:
Parking(sq ft)„ t
f.
A f ...
Sidewalk(sq ft) 10186 sf I 10186 sf
Roof(sgft) 9216 sf 9216 sf
..__I.._ Roadway(ag ft)..._._ _._ _.. 144885 sf 144885 sf
> Future(sgft) 71616 sf 7 616 sf
1 -Other,please specify in the comment box
_ _jbelow(sq_ft)_
New infiltrating permeable pavement on
13 ;subdivided lots(KM
INew infiltrating permeable pavement not on
14 subdivided lots(scLft)
• Existing BUA that will remain(not subject to
15 i'permitting)isgft)_ 24971 sf 24971 sf
16 IExisting BUA that is already permitted(sq ft)
17 i Existing BUA that will be removed(sgft) 393 sf 393 sf
18 i Percent BUA 7% 7%
19 hDesign storm(pchesj
Il
20 ,LDesign volume of SCM(cu ft)
21 Calculation method for design volume
*ADDITIONAL INFORMATION
_ Please use this space to provide any additional information about the ..
22 Jdrainage area(s)
Future BUA is allotted for the outparcel
S¢
i

LOW DENSITY _
DESIGN REQUIREMENTS 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) 2.1
5 ;Maximum velocity in the vegetated conveyances during the 10-year storm? 3.6
6 I Are curb outlet swales proposed? Yes
7 Maximum longitudinal slope of curb outlet swale(s)(%) 1%
8 Bottom width of curb outlet swale(s)(feet) 2 ft
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 i Are treatment swales used instead of curb outlet swales? No
12 Is stormwater released at the edge of the setback as dispersed flow? N/A
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:
1
Swale Drainage BUA Pervious Q Slope i V.s.., ; V.d,,., i Flow depth
# face! 1 ) (act (its) (%) I OP) i lips) (ft)
1 2.44 1.88 0.56 0.80 15.39 0.85 4.50 2.61 1.25
2 12.27 5.67 6.61 0.60 35.60 0.36 4.50 2.33 1.95
3 12.71 5.86 6.84 0.60 36.85 0.36 4.50 2.53 2.25
4 14.88 5.72 9.15 0.55 31.58 ' 0.36 4.50 2.43 2.10
6 15.44 5.94 9.50 0.55 32.77 0.36 2.00 1.49 2.13
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