SW3220702_Supplement-EZ Form_20220804

SUPPLEMENT-EZ COVER PAGE
FORMS LOADED
PROJECT INFORMATION
1 IProject Name
2 Project Area (ac)
Preserve at Forest
1 6 IDoes this project use an off -site SCM? I No I
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 ?
No
10
is streambank stabilization proposed on this project?
No
NUMBER AND TYPE OF SCMs:
11 Infiltration System 0
12
Bioretention Call
0
13
Wet Pond
6
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
Storm liter
0
24
Silva Cell
0
25
Sayfilter
0
26
Filterra
0
FORMS LOADED
DESIGNER CERTIFICATION
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.
Signature of Designer
-5 •2fr • Zz9ZZ
Date

N
.tea
OHO
W�[W
fT
,P
w
A3
+O
.
W-4MCnA
07
C
CL
9'l (9
Q
000T
Gl
@ fG
N X
P
Y[•
fT
W X
W ZN
C
Zv
t@
N
i .
i i
w
(} Z
3 N �p
z1
m N
O
O-i-i
O
O
D
7
7 H
Sip A
z
r
d
m y'
3 7
N d
C
c
"� 7
a
K 7
a
Q$
K 0
3�
T O
N
O a
N
y
7c
S
fR'
N W
W
w y.
[p N
N.
fD
w m
a
�'
R1
S
i2.
C
SD C
N
N m
M
-<
0
O
N_
0
C O
00 W
C C
W
C
70
Ca
C
FL
p-
N m
'S3
t,�0
61
N Ol
O.O
7
�7 C
D
D >
7 CCQa
D
O
a
01
@ CO
7 C7
ma
N
¢�j
O
a D
a
y D
o j
_
0
y
y
y N
7
7
w
I
v y
• •
p
O co)
61
,+
N"
..
N
.w
'6
N L9
•6
N IL
omi
S
y
N
.�
m
7
L C7
Cr
iC
0)
N
N
N
T
0
a
CC-) rf6n
.
y
m
:
W
N
p
tD
ID
m
m
a
p
Z
—
w
m
—
cu
m
a
m
Z
C
D
2;
a
aID
y
N
N
y
xc
A
d
a
c�
a
°
O
z
CL
CD
c
°
m
m
°^
D
03
m
N
a
NEFL
c
3
g
03
N
�
^"
3
CD
^'CL
O
O
Oa.
o'
a
3
0
a
0
+
0
3
p�
x
N
3
O
O1
j
Al
Owi
Ul w
y
V
[�/�
y
NZZZ
Z
Zcl,
Z�$°pNZ
�
ZZ
��
w
V
wZW
V rG7
W
aeaaa
a
a
aw0rD
as
1
W
�aK).0
W
�
W
M
W
Z
N—
Z
y
ZwOf
W W
Z
ZZ
Owp�zzz
bGo;
aaa
z
a
'a
V
a
�a
a'D
w
L~GZNN�
tD9,0
V
EL
2L
W
WZ
v
v
O
w
w
W
�1 N
�
V
V
zv,0o�zzz
;
aeaaa
z
a
z
a
zg-4fz
'Dy
N
N
a
zz
an
OwI
o
ozc°forO7ov
.4
"0
m
�
,
2L
-�
v
v
Ow
©
O Cf
- Z
Z
Z
Z
Z
W
Z V1
i
Z
Z Z
i
Z
T
"
���`Dw
NQn
an
o
o3
T
m.
N.
2L
(
y
co
W Z
�
�
v
v
p�
o
w Z
z
z
Z
Z
z�
W
v
z
z z
v
v z
NA7
y
y
a
n�
ND`
�a
w
waww0�
q"
�;aeaaD
M
biwti
y
cn
rhz
Xw
o
oAoU,zzz
g;
Lh
0z�A�
co
z
z
z�rimz
D.in�tiD
zz
'Dn
w
NDt4:Q
..
n�
AAA
r
�-4Z
�
o
v
❑o�nZzz
Z
Z
�''
z�vtiZ
�z
a
w
m
WZv-4-�
ttm
�cr;
o aaD
n
n
5;
an
co
Wn�
oo
N
E,
4A!2�
v
v
Z
V I
n
m
cn

WET POND
1
]Drainage area number
7
8
9 10
11
1 12
2
1 eF
Minimum required treatment volume (cu ft) 802688 of 769615 of 646430 of 277335 cf 314777 of 40779GENERAL MQC FROM 02H.joso
_ .
Is the SCM sized to treat the SW from all surfaces at build -out? Yes Yes Yes Yes Yes Yes
Is the SCM located away from contaminated soils? Yes Yes Yes Yes Yes Yes
3
4
5
What are the side slo e$ of the SCM H:V ?
3:1
3:1
3:1
3:1
3:1
3:1
6
Does the SCM have retaining walls, gabion walls or other engineered
side slopes?
Yes
No
Yes
No
Yes
Yes
7
Are the inlets, outlets, and receiving stream protected from erosion
10- ear storm)?
Yes
Yes
Yes
Yes
Yes
Yes
8
Is there an overflow or bypass for inflow volume In excess of the
desi n volume?
No
No
No
No
9
What is the method for dewaterin the 5CM for maintenance?
Pum refened
MNo,Nc
umrerred
Pum referred
Pum referred
Pum referred10
If a Iicable will the SCM be cleaned out after construction?
Yes
Yes
Yes
Yea
Yes
11
Does the maintenance access com with General MDC B ?
Yes
Yes
Yes
Yes
Yes
12
Does the drains a easement com with Genera@ MDC 9 ?
Yes
Yes
Yes
Yes
Yes
13
If the SCM is on a single family lot, does (will?) the plat comply with
General MDC (10)?
NIA
WA
N/A
WA
N/A
NIA
14
Is there an O&M Agreement that complies with General MOC (11)7
Yes
Yes
Yes
Yes
Yes
Yes
15
Is there an O&M Plan that complies with General MDC (12)?
Yes
Yes
Yes
Yes
Yes
Yes
16
Doss the SCM follow the devices ec15c MDC?
Yes
Yes
Yes
Yes I
Yes
Yes
17
Was the SCM designed b an NC licensed rofessional?
Yes
Yes
Yes
Yes
Yes
Yes
18
Sizing method used
SAIDA
SA/DA
SAIDA
SAIDA
SAIDA
SA/DA
19
Has a stage/storage table been provided in the calculations?
Yes
Yes
Yes
Yes
Yes
Yes
20
Elevatlon of the excavated main pool depth (bottom of sediment
removal fmsl
639.50
616.50
649.54
649.50
626.50
608.50
211
Elevation of the main pool bottom (top of sediment removal) (fmsl)
640.00
617.00
050.00
850.00
629.00
609.00
22
Elevation of the bottom of the vegetated shelf fmsl
643.50
621.50
653.50
654.50
632.50
613.50
23
Elevation of the permanent pool fmsl
6".00
622.00
654.00
655.00
633.00
614.00
24
Elevation of the top of the ve stated shell fmsl
644.50
622.50
654.50
655,50
633.60
614.50
25
Elevation of the temporary ool fmsE
645.58
623,81
665.57
656.67
634AS
615.76
26
Surface area of the main permanent pool (square feet
24627
19698
17664
8093
9811
9677
27
Volume of the main permanent pool cubic feet
82077 of
73476 cf
55330 cf
24026 of
33349 of
33910 cf
28
Average depth of the main pool feet
3.33 ft
3.93 It
3.13 it
3.08 it
3.40 ft
3.50 ft
29
Average depth euation used
Equation 2
Equation 2
Equation 2
Equation 2
Equation 2
Equation 2
30
If usino a uatlon 3 main pool perimeter feet
NIA
WA
N/A
WA
N/A
N/A
31
If using equation 3 width of submerged van. shell feet
NIA
WA
NIA
WA
NIA
NIA
32
Volume of the foreba cubic feet
14692 cf
13134 cf
9181 cf
4267 of
5303 cf
6086 of
33
Is this 15.20% of the volume in the mainpool?
Yes
Yes
Yes
Yes
Yes
Yes
34
Clean -out depth for foreba inches
6 in
6 in
6 In
6 in
6 in
6 In
35
Design volume of SCM (run)
42338 of
37991 cf
31071 cf
13265 of
15749 cf
19615 d
36
Is the outlet an orifice or a weir?
Orifice
Orifice
Orifice
Orifice
Orifice
Orifice
37
If orifice orifice diameter inches
2.75 in
2.50 In
3.00 in
2.00 in
2.00 in
2.50 in
38
If weir, weir height inches
NIA
N/A
N/A
NIA
N/A
NIA
39
If weir, weir length inches
N/A
N/A
NIA
NIA
NIA
NIA
40
Drawdown time for the temporary pool(days)
3.72
2.64
2.29
2.14
2.75
2.46
41
Are the Inlet(s) and outet located in a manner that avoids short-
ci=tin 7
Yes
Yes
Yes
Yes
Yes
Yes
42
Are berms or baffles provided to improve the flowpath?
Yes
Yes
Yes
Yes
Yes
Yes
43 IDepth
of forebay at entrance inches
10 in
10 in
10 in
10 in
10 In
10 in
44
De th offorebay at exit inches
6 in
6 In
6 in
6 in
6 In
6 In
45
Does water flow out of the forebay In a non -erosive manner?
Yes
Yes
Yes
Yes
Yes
Yes
46
Width of the vegetated shelf feet
6 ft
6 It
6 it
6 it
6 ft
6 ft
47
Slope of vegetated shelf H:V
6:1
6:1
6:1
6:1
8:1
6:1
48
Does the orifice drawdown from below the top surface of the
permanent oo€?
Yes
Yes
Yes
Yes
Yes
Yes
49
Does the pond minimize impacts to the receiving channel from the 1-
24-hr storm?
Yes
Yes
Yes
Yes
Yes
Yes
5D
Are fountains proposed? (If Y, please provide documentation that
MDC 9 is met.
No
No
No
No
No
No
51
Is a trash rack or other device provided to protect the outlet system?
Yes
Yes
Yes
Yes
Yes
Yes
52
Are the dam and embankment planted in non -clumping turf grass?
Yes
Yes
Yes
Yes
Yes
Yes
53
Species of turf that will be used an the dam and embankment
HYBRID
BERMUDA
HYBRID
BERMUDA
HYBRID
BERMUDA
HYBRID
BERMUDA
HYBRID
BERMUDA
HYBRID
BERMUDA
54
Hasa plantingIan been provided far the ve stated shaff7
Yes
Yes
Yes
Yes
Yes
Yes
OITIONAL
INFORMATION
55
Please use this space to provde any additional information about the
wet pond(s):
Wet Pond 3 2:21 PM 5/5/2022