SW3171201_Supplement-EZ Form_20230810

SUPPLEMENT-EZ COVER PAGE
FORMS LOADED
PROJECT INFORMATION
1 Project Name Village of Granite Quarry Phase III
2 Project Area(ac) 9.79
3 Coastal Wetland Area(ac) 0
4 Surface Water Area(ac) 0
5 Is this project High or Low Density? High
6 Does this project use an off-site SCM? Yes
COMPLIANCE WITH 02H.1003(4)
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 project? No
NUMBER AND TYPE OF SCMs:
11 Infiltration System 0
12 Bioretention Cell 0
13 Wet Pond 1
14 Stormwater Wetland 0
15 Permeable Pavement 0
16 Sand Filter 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 0
25 Bayfilter 0
26 Filterra 0
FORMS LOADED
DESIGNER CERTIFICATION
27 Name and Title: Allen Mcdowell
28 Organization: Bohler Engineering,NC
29 Street address: 1927 S.Tryon Street,Suite 310
30 City,State,Zip: Charlotte,NC 28203
31 Phone number(s): [phone]
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
Signature of Designer
Seal Date

DRAINAGE AREAS
1 Is this a high density project? Yes
2 If so,number of drainage areas/SCMs 2 _
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 1 2 LD 1 I
4 Type of SCM BMP6 BMP3 BYP1,5,6,8
5 Total drainage area(sq ft) 420787 264409 123274 33104 _
6 Onsite drainage area(sq ft) 374385 229138 112143 33104
7 Offsite drainage area(sq ft) 46402 35271 11131 0
8 Total BUA in project(sq ft) 185288 124110 sf 52466 sf 8712 sf
New BUA on subdivided lots(subject to
9 permitting)(sq ft) 69921 49179 sf 20742 sf sf
New BUA not on subdivided lots(subject to
10 permitting)(sf) 75725 52861 sf 22864 sf sf
11 Offsite BUA(sq ft) 30930 22070 sf 8860 sf sf
12 Breakdown of new BUA not on subdivided lots: 0
-Parking(sq ft) 4800 2400 sf 2400 sf sf
-Sidewalk(sq ft) 6850 5230 sf 1620 sf sf
-Roof(sq ft) 0 sf sf sf
-Roadway(sq ft) 61209 44031 sf 17178 sf sf
-Future(sq ft) 0 sf sf sf
-Other,please specify in the comment box
below(sq ft) 0
New infiltrating permeable pavement on
13 subdivided lots(sq ft) 0 sf sf sf
New infiltrating permeable pavement not on
14 subdivided lots(sq ft) 0 sf sf sf
Existing BUA that will remain(not subject to
15 permitting)(sq ft) 42508 23270 sf 10526 sf 8712 sf
16 Existing BUA that is already permitted(sq ft) 42508 23270 sf 10526 sf 8712 sf
17 Existing BUA that will be removed(sq ft) 0 sf sf sf
18 Percent BUA 47% 43%
19 Design storm(inches) 1.0 in 1.0 in N/A
20 Design volume of SCM(cu ft) 12009 cf 38493 cf N/A
21 Calculation method for design volume scs scs N/A
ADDITIONAL INFORMATION _
Please use this space to provide any additional information about the
22 drainage area(s):

OFF-SITE SCM
THE DRAINAGE AREA
1 Drainage area number for this project BMP 3
2 Master permit number SW3171201
3 Drainage area number from the master permit BMP#3
4 Lot or outparcel number 404B100
76,230 SI- OR 1.75
5 BUA allocated by Master Permit ACRES
INFORMATION ABOUT THE OFF-SITE SCM
6 Type of off-site SCM Wet Pond
7 Available treatment capacity in the off-site SCM (cu ft) 38493 cf
8 Have deed restrictions limiting the BUA on the site been recorded? YES
9 Has an Engineer's Certification for the off-site SCM been submitted to DEQ? No
10 Are there any Notices of Violation for the off-site system? No
11 Has the off-site SCM been maintained in accordance with its O&M Plan? Yes
12 Will the collection system be maintained in its design state and kept clean? No
ADDITIONAL INFORMATION
13 Please use this space to provide any additional information about the off-site SCM(s):