SW6130203_Supplement-EZ Form_20240423

SUPPLEMENT-EZ COVER PAGE
PROJECT INFORMATION
1 Pro'ect Name O'Reilly Auto Parts Area Infiltration Basin
2 Pro'ect Area(ac) 8.977548
3 Coastal Wetland Area(ac)
4 Surface Water Area(ac)
5 Is this project High or Low Density? High
6 Does this project use an off-site SCM? No
COMPLIANCE WITH 02H.1003(4)
7 Width of vegetated setbacks provided(feet) _ _ 30
8 Will the vegetated setback remain vegetated? Yes j
9 If BUA is proposed in the setback,does it meet NCAC 02H.1003(4)(c-d)? N/A r
10 Is streambank stabilization proposed on this project? No
NUMBER AND TYPE OF SCMs: I
11 Infiltration System 1 _
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 StormFilter
24 Silva Cell
25 Bayfilter _
26 Filterra
FORMS LOADED
DESIGNER CERTIFICATION
27 Name and Title: Jarrod E.Hilliard,PE,CFM
28 Or!anization: Hilliard Engineering, PLLC
•Street address: 3417 Winterwind Circle
30 Cit ,State,Zip: Sanford, NC 27330
31 Phone number(s): 919-352-2834
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
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Seal Date

DRAINAGE AREAS
1 Is this a high density project? Yes
2 If so,number of drainage areas/SCMs 1
3 Does this project have low density areas? No
4 If so,number of low density drainage areas 0
Is all/part of this project subject to previous rule
5 [versions? No
FORMS LOADED
DRAINAGE AREA INFORMATION Entire Site 1 ,. 1
4 Type of SCM Infiltration Basin Infiltration Basin 4F
5 Total drainage area(sq ft) 391,062 374616
6 Onsite drainage area(sq ft) 391,062 374616
7 Offsite drainage area(sq ft)
8 Total BUA in project(sq ft) 318424 sf 318424 sf
New BUA on subdivided lots(subject to permitting)
9 , s' ft) 297634 sf 297634 sf
New BUA not on subdivided lots(subject to
10 permittn.)(sf) 20800 sf 20800 sf _
En Offsite BUA(sq ft)
lal Breakdown of new BUA not on subdivided lots: _
-Parking(sq ft)
agi -Sidewalk(sq ft)
1111111 -Roof(sq ft)
_ -Roadway(sq ft) 20800 sf 20800 sf
_ -Future(sq ft)
-Other,please specify in the comment box
below(sq ft)
New infiltrating permeable pavement on
13 subdivided lots(sq ft)
New infiltrating permeable pavement not on
14 subdivided lots(sq ft)
Existing BUA that will remain(not subject to
1 15 `permitting)(sq ft)
16 Existing BUA that is already permitted(sq ft)
17 Existing BUA that will be removed(sq ft)
18 Percent BUA 81% 85%
19 Design storm(inches) 1.0 in
20 Design volume of SCM(cu ft) 25444 cf
21 Calculation method for design volume simple
ADDITIONAL INFORMATION
Please use this space to provide any additional information about the
22 ;drainage area(s):