SW3241002_Supplement-EZ Form_20241118

SUPPLEMENT-EZ COVER PAGE
FORMS LOADED I
PROJECT INFORMATION
1 Project Name Rucker Single Family
2 Project Area(acj_ 65 •
3 Coastal Wetland Area(ac) 0
4 ,Surface Water Area(ac) 0
5 Is this project High or Low Density? High
6 I Does this project use an off-site SCM? No
COMPLIANCE WITH 02H.1003(4)
7 i Width of vegetated setbacks provided(feet) 50
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 I Infiltration System
12 •Bioretention Cell
13 Wet Pond _ f 3 14 IStormwaterWetland
15 Permeable Pavement
16 Sand Filter
17 Rainwater Harvesting(RWH)
18 Green Roof
19 Level Spreader-Filter Strip(LS-FS)
20 IDISConnected 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: — _ __ Marc Van Dine.PE
28 'Organization: _ McAdams
29 Street address: __ __ 2100 S Tryon Street,Suite 400
30 City,State,Zip: _ _ _ Charlotte,NC 28203
31 Phone number(s): _4125137226
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 8
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 2 3 4
4 Type of SCM N/A-bypass N/A-bypass Wet Pond N/A-bypass
5 Total drainage area(sq ft) 4196504 474539 83078 1002495 62005
6 Onsite drainage area(sq ft) 3428541 40075 _R 83078 728938 62005
7 Offsite drainage area(sq ft) 767963 434464 0 273557 0
8 Total BUA in project(sq ft) 1367831 sf 115863 sf 0 sf 427260 sf 0 sf
New BUA on subdivided lots(subject to permitting)
9 (sq ft) 838000 sf 0 sf 0 sf 248000 sf 0 sf
ir
New BUA not on subdivided lots(subject to
10 permitting)(sf) 338541 sf , 0 sf 0 sf 121833 sf 0 sf
11 Offsite BUA(sq ft) 191290 sf 115863 sf 0 sf 57427 sf 0 sf
12 Breakdown of new BUA not on subdivided lots:
-Parking(sq ft) 25567 sf 0 sf 0 sf 8693 sf 0 sf
-Sidewalk(sq ft) 77792 sf 0 sf _ 0 sf 28073 sf _ 0 sf _
-Roof(sq ft) 838000 sf 0 sf . 0 sf 248000 sf 0 sf
-Roadway(sq ft) ` 235182 sf 0 sf 0 sf 85067 sf _ 0 sf
-Future(sq ft) 0 sf 0 sf 0 sf 0 sf 0 sf
-Other,please specify in the comment box
below(sq ft)
New infiltrating permeable pavement on
13 subdivided lots(sq ft) 0 sf 0 sf 0 sf _ 0 sf 0 sf
New infiltrating permeable pavement not on
14 subdivided lots(sq ft) 0 sf 0sf 0 sf __ 0 sf 0 sf
Existing BUA that will remain(not subject to
15 permitting)(sq ft) 191290 sf_ 115863 sf 0 sf 57427 sf 0 sf
16 Existing BUA that is already permitted(sq ft) 0 sf 0 sf 0 sf 0 sf — 0 sf _
1 Existing BUA that will be removed(sq ft) 0 sf 0 sf 0 sf 0 sf 0 sf _
18 Percent BUA 33% 24% 0% 43% 0%
19 Design storm(inches) 1 3.1 in _ 3.1 in 3.1 in _ 3.1 in 3.1 in
20 I Design volume of SCM(cu ft) N/A N/A N/A 245964 cf N/A
21 jCalculation method for design volume SCS,SA/DA SCS,SA/DA SCS,SA/DA SCS,SA/DA SCS,SA/DA
ADDITIONAL INFORMATION
Please use this space to provide any additional information about the
22 drainage area(s):
There are 8 drainage areas that were evaluated to ensure the site was
meeting all requirements.Areas 3,6,and 8 treat onsite and offsite drainage 1
using SCMs. Areas 2,4,5,&7 bypass onsite DAs with little to no BUA.Area
1 bypasses offsite drainage to reflect existing conditions.

DRAINAGE AREAS
' 1 Is this a high density project? Yes
2 If so,number of drainage areas/SCMs 8
3 Does this project have low density areas? i No
_
4 If so,number of low density drainage areas 0
Is all/part of this project subject to previous rule
5 versions? I No
FORMS LOADED
DRAINAGE AREA INFORMATION Entire Site 3 6 7 8
4 T •e of SCM N/A-b sass Wet Pond N/A-b •ass _ Wet Pond
©Total drainage area(sq ft) 4196504 34880 805485 953194 780828
6 Onsite draina•e area s• ft 3428541 34880 805485 953194 721586 _
Offsite drainage area(sq ft) r r r 59242
Total BUA in project(sq ft) 363970 sf
New BUA on subdivided lots(subject to permitting)
(sq ft) ;��� ��I •��I 252000sf
New BUA not on subdivided lots(subject to
• •ermittin• s r 93970 sf
MI
Offsite BUA(sq ft) r 18000 sf
Breakdown of new BUA not on subdivided lots:
_ -Parking(sq ft) 25567 sf r sf 8926 sf WEE 7948 sf
1111. -Sidewalk s• ft)
_ -Roof s• ft 838000 sf 0 sf 312000 sf 26000 sf 252000 sf
-Roadway(sq ft) 235182 sf 0 sf
86529 sf 0 sf 63586 sf
-Future(sq ft) r r 0 sf 0 sf 0 sf
IIIOther,please specify in the comment box
below s• ft --
IIINew infiltrating permeable pavement on
subdivided lots(sq ft) r sf 0 sf 0 sf 0 sf 0 sf
New infiltrating permeable pavement not on
subdivided lots(sq ft) r sf 0 sf 0 sf 0 sf 0 sf
®Existing BUA that will remain(not subject to
•ermittin• sq ft) 191290 sf 0 sf 0 sf 0 sf 18000 sf
16 Existin. BUA that is airead .ermitted s. ft r sf 0 sf 0 sf 0 sf 0 sf
EMI Existin. BUA that will be removed =• ft 0 sf 0 sf 0 sf 0 sf 0 sf
18 Percent BUA 33% 0% 54% 3% 47%
19 Design storm(inches) 3.1 in 3.1 in 3.1 in 3.1 in 3.1 in
20 Design volume of SCM(cu ft) N/A N/A 298585 cf N/A 339657 cf
21 Calculation method for design volume SCS,SA/DA SCS,SA/DA SCS,SA/DA SCS,SA/DA SCS,SA/DA
ADDITIONAL INFORMATION
Please use this space to provide any additional information about the
22 drainage area(s): _
ere are 8 drainage areas that were evaluated to ensure the site was
meeting all requirements.Areas 3,6,and 8 treat onsite and offsite drainage
,using SCMs. Areas 2,4,5,&7 bypass onsite DAs with little to no BUA.Area
i 1 bypasses offsite drainage to reflect existing conditions.

WET POND
1 Drainage area number 3 6 8
2 Minimum required treatment volume(cu ft) I 245964 cf 298585 cf 339657 cf
GENERAL MDC FROM 02H.1050
3 Is the SCM sized to treat the SW from all surfaces at build-out? Yes Yes- Yes
4 Is the SCM located away from contaminated soils? Yes-- Yes Yes
5 What are the side slopes of the SCM(H:V)? I 2:1 2:1 2:1
6 Does the SCM have retaining walls,gabion walls or other engineered, No No No
side slopes? i
7 Are the inlets,outlets,and receiving stream protected from erosion Yes Yes Yes
(10-year storm)?
8 Is there an overflow or bypass for inflow volume in excess of the Yes Yes Yes
design volume?
9 What is the method for dewatering the SCM for maintenance? i Pumpjpreferred) , Pump(preferred) Pump(preferred) ,
10 if applicable.will the SCM be cleaned out after construction? Yes Yes Yes
11 Does the maintenance access comply with General MDC(8)? Yes Yes Yes
12 Does the drainage easement comply with General MDC(9)? Yes Yes Yes
If the SCM is on a single family lot,does(will?)the plat comply with
13 Yes Yes Yes
General MDC(10)?
14 Is there an O&M Agreement that complies with General MDC(11)? Yes Yes Yes
15[Is there an O&M Plan that complies with General MDC(12)? Yes — Yes Yes -,
16 Does the SCM follow the device specific MDC? Yes Yes Yes -
17 Was the SCM designed by an NC licensed professional? Yes Yes Yes
WET POND MDC FROM 0214.1053'
18 Sizing method used SA/DA - SA/DA SA/DA
19 Has a stageistorage table been provided in the calculations? Yes Yes Yes _
Elevation of the excavated main pool depth(bottom of sediment 728_00 708 00 748.00
20 removal)(fmsl) 4 -
21 Elevation of the main pool bottom(top of sediment removal)(fmsl) 729.00 709.00 749.00
22 Elevation of the bottom of the vegetated shelf(fmsl) 734.50 713.50 753.50
23 Elevation of the permanent pool(frost) 735.00 714.00 754.00
24 Elevation of the top of the vegetated shelf(fros() 735.50 714.50 754.50
25 Elevation of the temporary pool(fmsl) I 736.49 715.24 754.94 _
26 Surface area of the main permanent pool(square feet) 14392 20037 22115
27 Volume of the main permanent.pool(cubic feet) 52913 cf 81130 cf 86955 cf
28 Average depth of the main pool(feet) 3.68 ft 4.05 ft 3.93 ft
29 Average depth equation used Equation 2 Equation 2 Equation 2
30 If using equation 3,main pool perimeter(feet) -_
311 If using equation 3,width of submerged veg.shelf(feet)
321Volume of the forebay(cubic feet) 10042 cf 12688 cf — 17803 cf
33 Is this 15-20%of the volume in the main pool? Yes Yes Yes
34 Clean-out depth for forebay(inches) 37.2" • 31.2" 31.3"
35 Design volume of SCM(cu ft) 245964 cf 298585 cf 339657 cf
36j Is the outlet an orifice or a weir? Weir _ Weir Weir
37 If orifice,orifice diameter(inches)
38 If weir,weir height(inches) 24 in 6 in 6 in
39i If weir,weir length(inches) i 24 in 48 in 36 in
40 Drawdown time for the temporary pool(days) 3.74 days 4.31 days _ 4.46 days
41 '�the inlet(s)and outlet located in a manner that avoids short- Yes Yes Yes
circuiting?
—
42 Are berms or baffles provided to improve the flow path? { Yes Yes _ Yes _
43:Depth of forebay at entrance(inches) 60 in 60 in 60 in
44 Depth of foreba_y at exit(inches) 40 in 40 in 40 in
45 Does water flow out of the forebay in a non-erosive manner? Yes Yes Yes
46 Width of the vegetated shelf(feet) 10 ft 10 ft 10 ft _
47 Slope of vegetated shelf(H:V) 10:1 10:1 _ 10:1
48 Does the orifice drawdown from below the top surface of the
permanent pool? Yes Yes Yes
49'Does the pond minimize impacts to the receiving channel from the 1-
Yes Yes Yes Yes
r,24-hr storm?
re fountains proposed?(If Y, please provide documentation that No No No
50 DC(9)is met.)
51 Is a trash rack or other device provided to protect the outlet system? Yes Yes Yes
52 Are the dam and embankment planted in non-clumping turf grass? I Yes Yes Yes
533Species of turf that will be used on the dam and embankment Tall Fescue Tall Fescue Tall Fescue
54 Has a planting plan been provided for the vegetated shelf? Yes Yes Yes
ADDITIONAL INFORMATION
Please use this space to provide any additional information about the
55
lwet pond(s): _ A_
Wet Pond 4 3:05 PM 9/23/2024