SW4200902_Supplement EZ_20201022

SUPPLEMENT-EZ COVER PAGE
FORMS LOADED
PROJECT INFORMATION
1 Project Name Miller's Reserve
2 Project Area ac 51.33
3 Coastal Wetland Area ac N/A
4 Surface Water Area ac N/A
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
9 Is BUA other that as listed in.1 003(4)(c-d)out of the setback? NO
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(IS-FS 0
20 Disconnected Impervious Surface(DIS) 0
21 Treatment Swale 0
22 Dry Pond 0
23 StormFilter 0
24 Silva Cell 0
25 Bayfiiter 0
26 Filterra 0
FORMS LOADED
DESIGNER CERTIFICATION
27 Name and Title: Clark Fleming
28 Organization: Evans Engineering,Inc.
29 Street address: 4609 Dundas Drive
30 City,State,Zip: Greensboro,NC,27407
31 Phone numbers: 336-854-8877
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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AL m Signature of Designer
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Seal Date

WEB' POND
::1]Drainage area number
2 jDesign volume of SCM(cu ft) L65181 of
3%the SCM at the SW from all surfaces at build-out? Yes
4 Is the SCM located away from contaminated soils? No
5 What are the side slopes of the SCM(H:V)? 3:1
Does the SCM have retaining walls,gabion walls or other engineered
6 side slopes? No
Are the inlets,outlets,and receiving stream protected from erosion
7 (10-year storm)? Yes
Is there an overflow or bypass for inflow volume in excess of the
81 design volume? Yes
9 What is the method for dewatering the SCM for maintenance? Drawdown Orifice
10 If applicable,will the SCM be cleaned out after construction? Yes
11 Does the maintenance access comply with General MDC(8)? Yes
12 Does the drainage easement comply with General MDC(9)? Yes
If the SCM is on a single family lot,does(will?)the plat comply with
13 General MDC(10)?
14 is there an O&M Agreement that complies with General MDC(11)? Yes
15 Is there an O&M Plan that complies with General MDC(12)? Yes
16 Does the SCM follow the device specific MDC? Yes
17 Was the SCM designed by an NC licensed professional? Yes
rMet J.".4 SA/DA
19 Has a stage/storage table been provided in the calculations? Yes
Elevation of the excavated main pool depth(bottom of sediment
20 removal)(fmsl) 723.00
21 Elevation of the main pool bottom-(top of sediment removal)(fmsl) 724.00
22 Elevation of the bottom of the vegetated shelf(fmsl) 730.00
23 Elevation of the permanent pool(fmsl) 730.50
24 Elevation of the top of the vegetated shelf(fmsl) 731,00
25 Elevation of the temporary pool(fmsl) 732.50
26 Surface area of the main permanent pool(square feet) 21872:1
27 Volume of the main permanent pool(cubic feet) 65181 of
28 Average depth of the main pool(feet) 4.97 ft
29JAverage depth equation used Equation 3
30 If using equation 3,main pool perimeter(feet) 557.0 ft
31 If using equation 3,width of submerged veg.shelf(feet) 3.0 ft
32 Volume of the forebay(cubic feet) 16070 of
33 Is this 15-20%of the volume in the main pool? Yes
34 Clean-out depth for forebay(inches) 63 in
35 Design volume of SCM(cu ft) 65181 of
36 Is the outlet an orifice or a weir? Orifice
37 If orifice,orifice diameter(inches) 316
38 If weir,weir height(inches)
39 If weir,weir length(inches)
40 Drawdown time for the temporary pool(days) 3.28
Are the inlet(s)and outlet located in a manner that avoids ih-ort-
41 Icircuiting? Yes
42 Are berms or baffles provided to improve the flow path? No
43 Depth of forebay at entrance(inches) 84 in
44 Depth of forebay at exit(inches) 48 in
45 Does water flow out of the forebay in a non-erosive manner? Yes
46 Width of the vegetated shelf(feet) 6 ft
47 Slope of vegetated shelf(H:V) 6:1
Does the orifice drawdown from below the top surface of the
481 permanent pool? Yes
Does the pond minimize impacts to the receiving channel from the 1-
49 yr,24-hr storm? Yes
Are fountains proposed?(If Y,please provide documentation that
50 MDC(9)is met.) No
51 Is a trash rack or other device provided to protect the outlet system? Yes
52,Are the dam and embankment planted in non-clumping turf grass? Yes
53�Species of turf that will be used on the dam and embankment Tall Fescue
54 Has a planting i been provided for the vegetated shelf? Yes
ADDITIONAL INFORMATION
,5 fPIeta,;j_6se this space to provide any additional information about the
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55 wet pond(s):
Wet Pond 1 2:29 PM 10/22/2020