SW6231107_Supplement-EZ Form_20240314

SUPPLEMENT-EZ COVER PAGE
PROJECT INFORMATION
• 1 Project Name Kingston Village
2 Project Area(ac) 36.69
_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? NO
COMPLIANCE WITH 02H.1003(4)
7 Width of vegetated setbacks provided(feet) N/A
8 Will the vegetated setback remain vegetated? WA
9 If BUA is proposed in the setback,does it meet NCAC 02H.1003(4)(c-d)? WA
10 Is strearnbank stabilization proposed on this project? No
NUMBER AND TYPE OF SCMs:
11 'Infiltration System
12 Bioretention Cell
13 Wet Pond 2
14 Stonnwater 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: David Despeaux
28 Organization: Moorman,Kizer&Reitzel,Inc.
29 •Street address: 115 Broadfoot Avenue
30 !City,State,Zip: _ Fayetteville,NC 28305
31 Phone number(s): 910-484-5191
32 'Email: ddespeaux©mkrinc.com
Certification Statement:
I certrfy,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
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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? No
4 If so,number of low density drainage areas 0
Is all/part of this project subject to previous rule
5 versions? No
CLICK TO LOAD FORM

WET POND
1 Drainage area number POND A I POND B 1
2 Minimum required treatment volume(Cu ft) 39853 cf t 6341 cf
GENERAL MDC FROM 02H.1050
3 Is the SCM sized to treat the SW from all surfaces at build-out? Yes Yes
4 Is the SCM located away from contaminated soils? Yes Yes
5 What are the side slopes of the SCM(H:V)? 3H:1V 3H:1V
6 Does the SCM have retaining walls,gabion walls or other Yes Yes
engineered side slopes?
7 Are the inlets,outlets,and receiving stream protected from erosion Yes Yes
i(10-year storm)?
81 Is there an overflow or bypass for inflow volume in excess of the Yes Yes
design volume?
9,What is the method for dewatering the SCM for maintenance? Drawdown Orifice Drawdown Orifice
10 If applicable,will the SCM be cleaned out after construction? Yes Yes
11 iDoes the maintenance access comply with General MDC(8)? Yes Yes
121 Does the drainage easement comply with General MDC(9)? Yes Yes
131H the SCM Is on a single family lot,does(will?)the plat comply with N/A N/A
General MDC(10)?
14 Is there an O&M Agreement that complies with General MDC(11)? Yes Yes
15 Is there an O&M Plan that complies with General MDC(12)? Yes Yes
_ 16'Does the SCM follow the device specific MDC? Yes Yes
17 Was the SCM designed by an NC licensed professional? Yes Yes
WET POND MDC FROM 02H.1053
18 Sizing method used SA/DA SA/DA
19 Has a stage/storage table been provided in the calculations? Yes Yes
20 Elevation of the excavated main pool depth(bottom of sediment 239.50 240.00
removal)(fmsl)
21iElevation of the main pool bottom(top of sediment removal)(fmsl) 240.00 240.50
22 Elevation of the bottom of the vegetated shelf(fmsl) 244.50 248.00
231Elevation of the permanent pool(fmsl) 245.00 248.50
241 Elevation of the top of the vegetated shelf(fmsl) 245.50 249.00
25-Eevation of the tempora y pool(fmsl) 246.57 249.76
26iSurface area of the main permanent pool(square feet) 25834 4702
271 Volume of the main permanent pool(cubic feet) 106290 cf 15546 cf
28 Average depth of the main pool(feet) 4.11 ft 3.31 ft
29 Average depth equation used Equation 2 Equation 2
30 if using equation 3,main pool perimeter(feet)
31 If using equation 3,width of submerged veg.shelf(feet)
32 Volume of the forebay(cubic feet) 19221 d 2639 of
33 Is this 15-20%of the volume In the main pool? Yes Yes
34 Clean-out depth for forebay(inches) 6 INCHES 6 INCHES
35 Design volume of SCM(cu ft) 39853 cf 6341 cf
36 Is the outlet an orifice or a weir? Orifice Orifice
37 If orifice,orifice diameter(inches) 4'FOR TRT.VOL. 1.5"&6'FOR
TRT.VOL.
_38 If weir,weir height(inches)
39 If weir.weir length(inches)
40 Drawdown time for the temporary pool(days) 4.7 2.3
41 Are the inlets)and outlet located in a manner that avoids short- Yes Yes
circuiting?
42 Are berms or baffles provided to improve the flow path? Yes Yes
43 Depth of forebay at entrance(Inches) 69 in 81 In
44 Depth of forebay at exit(inches) 66 in 78 in
45,Does water flow out of the forebay in a non-erosive manner? Yes Yes
46`W idth of the vegetated shelf(feet) 6 ft 6 ft
47'Slope of vegetated shelf(H:V) 6H:1 V 6H:1 V
i Does the orifice drawdown from below the top surface of the Yes Yes
481 permanent pool?
49 Does the pond minimize impacts to the receiving channel from the 1- Yes Yes
yr,24-hr storm?
Are fountains proposed?(If Y,please provide documentation that
50No No
MDC(9)is met.)
51 Is a trash rack or other device provided to protect the outlet system? Yes Yes
52 Are the dam and embankment planted In non-clumping turf grass? Yes Yes
53 Species of turf that will be used on the dam and embankment �� & Bermuda&
Centipede Centipede
54 Has a planting plan been provided for the vegetated shelf? Yes Yes
ADDITIONAL INFORMATION _
Please use this space to provide any additional information about
55 the wet pond(s):
2