SWA000209_O&M Agreement/Plan_20230614

SUPPLEMENT-EZ COVER PAGE
FORMS LOADED
PROJECT INFORMATION
•,1 Project" me • w,,,wW„w„ •,609 UNIONBLVD WES,,, �mm —,•,,, „,,,,,.,�„„
T
2
Project Area (ac)
2.08
3
Coastal Wetland Area (ac)
4
Surface Water Area (ac)
5
Is this project High or Low Density?
High
6 1
Does this project use an off -site SCM?
_. _..____..
No
COMPLIANCE WITH 02H .1003(4)
7 Width of vegetated setbacks provided (feet)
8
Will the vegetated setback remain vegetated?
N/A
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:�����
17 Infiltration System
12
Bioretention Cell
13
Wet Pond
14
Stormwater 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 d � ��w a��,�w,�� •,,, _
27 Name and Title: DAVID W. ODOM, PE
28
Organization:
ODOM ENGINEERING, PLLC
29
Street address:
169 OAK ST
30
City, State, Zip:
FOREST CITY, NC 28043
31
Phone number(s):
828-247-44_95
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.
SEAL ..
211 O
t JQI�. •.
.��'��� /,r7W.
&W"
Signature of Desi ner
Date

DRAINAGE AREAS
1
Is this a high density project?
Yesu�
2
If so, number of drainage areas/SCMs
1
3
Does this project have low density areas?
No
4
If so, number of low density drainage areas
0
5
Is all/part of this project subject to previous rule
versions?
_
No
FORMS LOADED
INFORMATION I Entire
4 JTypeofSCM I WET POND_
5 1 Total drainage area (sq ft57499
6 lOnsite drainage area (sq ft)57499
7
Offsite drainage area (sq ft)
0
8
Total BUA in project (sq ft)
4.53.02 s__f
9
New BUA on subdivided lots (subject to permitting)
(sq ft)
��
10
New BUA not on subdivided lots (subject to
permitting) (so
11
Offsite BUA (sq ft)
12
Breakdown of new BUA not on subdivided lots:
Parking (sq ft)
28126 sf _
Sidewalk (sq ft)
1379 sf
Roof (sq ft)
12000 sf
Roadway (sq ft)
Future (sq ft)
Other, please specify in the comment box
below (sq ft)
13
New infiltrating permeable pavement on
subdivided lots (sq ft)
New infiltrating permeable pavement not on
14 subdivided lots (sq ft)
Existing BUA that will remain (not subject to
15 permitting) (sq ft)
16 Existing BUA that is already permitted (sq ft)
17 Existing BUA that will be removed (sq ft)
18
Percent BUA
79%�_'
19
Design storm (inches)
_
2.5 in
20
Design volume of SCM (cu ft)
_
21 1Calculation method for design volume III I HYDROCAD
'IONAL INFORMATION _
Please use this space to provide any additional information about the
22

WET POND
11 Drainage area number
1
21 Minimum re u,,edtreatment volume (cuj).
gENERAL MDC FROM 02H,1050
—ut?
77_ TI� �th_96M ­s,7,d_Mr7athe SW —from —allsu—rfacesat build bo
Yes
41
Is the SCM located away from contaminated soils?
51 What are the side slopes of the SCM (H:V)?
___Yes
3:1
6
Does the SCM have retaining walls, gabion walls or other engineered
side slopes?
No
7
Are the inlets, outlets, and receiving stream protected from erosion
(10-year storm)?
Yes
8
Is there an overflow or bypass for inflow volume in excess of the
design volume?
No
9
What is the method for clewatering the SCM for maintenance?
Pump (preferred)
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
13
If the SCM is on a single family lot, does (will?) the plat comply with
General MDC (10)?
No
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)?
s
16
Does the SCM follow the device specific MDC?
Yes
17
WET POND
Was ! the SCM desi necl b 1an NC licensed .Eol professional?
MDC FROM 02H 1053
Sizing method used
Yes
SA/DA
18_
19
Has a stage/storage table been provided in the calculations?
Yes
20
Elevation of the excavated main pool depth (bottom of sediment
removal) (fmsl)
21
Elevation of the main pool bottom (top of sediment removal) (fmsl)
677.00
22
Elevation of the bottom of the vegetated shelf (fmsl)
............
683.00
23
Elevation of the permanent pool (fmsl)
683.00
24
Elevation of the top of the vegetated shelf (fmsl)
683.00
25
Elevation of the temporary pool (fmsl)
683.50
26
Surface area of the main permanent pool (square feet)
2896
27
Volume of the main permanent pool (cubic feet)
16681 of
28
Average depth of the main pool (feet)
6.00 ft
29
Average depth equation used
Equation
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)
1602 cf
33
Is this 15-20% of the volume in the main pool?
Yes
34
Clean -out depth for forebay (inches)
6 in
35
Design volume of SCM (cu ft)
.. . .. .... ......
36
Is the outlet an orifice or a weir?
Weir
37
If orifice, orifice diameter (inches)
38
If weir, weir height (inches)
8 in
39
If weir, weir length (inches)
120 in
40
Drawdown time for the temporary pool (days)
1.12
41
Are the inlet(s) and outlet located in a manner that avoids short-
circuiting?
- - --------- ------------
Yes
42
Are berms or baffles provided to improve the flow path?
No
43
Depth of forebay at entrance (inches)
42 in
44
Depth of forebay at exit (inches)
42 in
45
Does water flow out of the forebay in a non -erosive manner?
Yes
46
Width of the vegetated shelf (feet)
6 6 ft
ft —
47
Slope of vegetated shelf (H:V)
1
48
Does the orifice drawdown from below the top surface of the
permanent pool?
Yes
49
Does the pond minimize impacts to the receiving channel from the I-
yr, 24-hr storm?
Yes
50
Are fountains proposed? (If Y, please provide documentation that
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
_FESCUEf
54
ADDITIONAL
55 "FPi'
Has a lantinjR Lan lbeenyroviclecl for the ve
INFORMATION
�ase �se this —space to provide a-d—ditional in —formation —about 7the
wet pond(s):
Yes -A
Wet Pond 1 3:14 PM 5/1/2023

Project Name:
Project Location:
609 UNION WEST BLVD (CHARLES E. MEEKS WAREHOUSE)
609 UNION WEST BLVD, STALLINGS, NC
Cover Page
Maintenance records shall be kept on the following SCM(s). This maintenance record shall be kept in a log in a known set location.
Any deficient SCM elements noted in the inspection will be corrected, repaired, or replaced immediately. These deficiencies can
affect the integrity of structures, safety of the public, and the pollutant removal efficiency of the SCM(s).
The SCM(s) on this project include (check all that apply & cc
Infiltration Basin
Quantity:
Infiltration Trench
Quantity:
Bioretention Cell
Quantity:
Wet Pond
Quantity:
Stormwater Wetland
Quantity:
Permeable Pavement
Quantity:
Sand Filter
Quantity:
Rainwater Harvesting
Quantity:
Green Roof
Quantity:
Level Spreader - Filter Strip
Quantity:
Proprietary System
Quantity:
Treatment Swale
Quantity:
Dry Pond
Quantity:
Disconnected Impervious Surface
Present:
User Defined SCM
Present:
Low Density
Present:
onding O&M sheets will be added automatically):
Location(s):'
Location(s):
Location(s):
1 Location(s): REAR OF PROPERTY
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
No Location(s):
No Location(s):
No Type:
I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed for
each SCM above, and attached O&M tables. I agree to notify NCDEQ of any problems with the system or prior to any changes to
the system or responsible party.
Responsible Party:
Title & Organization:
Street address:
City, state, zip:
Phone number(s):
Email:
Signature:
County of
personally appeared before me this
CHARLES E. MEEKS, Jr
OWNER / DEVELOPER (609 UNION WEST BLVD LLC)
2210 ALLEN DR
SALISBURY, MD 21801
800-787-0436
[e-mail]
, a Notary Public for the State of
, do hereby certify that
day of
acknowledge the due execution of the Operations and Maintenance Agreement.
Witness my hand and official seal,
Date:
and
Seal
My commission expires
STORM-EZ 5/1 /2023
Version 1.5 O&M Agreement Paae 1 of 1

Wet Pond Maintenance Requirements (Continued)
SCM element:
Potential problem:
How to remediate the problem:
Sediment has
accumulated to a depth
Search for the source of the sediment and remedy the problem
greater than the original
if possible. Remove the sediment and dispose of it in a location
design sediment storage
where it will not cause impacts to streams or the SCM.
depth.
Algal growth covers over
Consult a professional to remove and control the algal growth.
p g
The main treatment area
50% of the area.
Cattails, phragmites or
other invasive plants cover
Remove the plants by wiping them with pesticide (do not spray).
50% of the basin surface.
Best professional practices
show that pruning is
Prune according to best professional practices.
needed to maintain optimal
plant health.
The vegetated shelf
Determine the source of the problem: soils, hydrology, disease,
Plants are dead, diseased
etc. Remedy the problem and replace plants. Provide a one -
or dying.
time fertilizer application to establish the ground cover if a soil
test indicates it is necessary.
Weeds are present.
Remove the weeds, preferably by hand. If pesticide is used,
wipe it on the plants rather than spraying.
Shrubs have started to
Remove shrubs immediately.
grow on the embankment.
Evidence of muskrat or
Consult a professional to remove muskrats or beavers and
beaver activity is present.
repair any holes or erosion.
A tree has started to grow
Consult a dam safety specialist to remove the tree.
The embankment
on the embankment.
An annual inspection by an
appropriate professional
Make all needed repairs immediately.
shows that the
embankment needs repair.
Clogging has occurred.
gg g
Clean out the outlet device and dispose of any sediment in a
location where it will not cause impacts to streams or the SCM.
The outlet device
The outlet device is
Repair or replace the outlet device.
damaged.
Weeds or volunteer trees
Remove the weeds or trees.
a
re growing on the mat.
Floating wetland island
(if applicable)
The anchor cable is
damaged, disconnected or
Restore the anchor cable to its design state.
missing.

Wet Pond Maintenance Requirements (Continued)
SCM element:
Potential problem:
How to remediate the problem:
Erosion or other signs of
damage have occurred at
Repair the damage and improve the flow dissipation structure.
the outlet.
The receiving water
Discharges from the wet
pond are causing erosion
Contact the local NCDEQ Regional Office.
or sedimentation in the
receiving water.

Wet Detention Pond Design Summary
Wet Pone i2lur M
WET POND ID
1
Pretreatment other No
than forebay?
Has Veg. Filter?
FOREBAY
Permanent Pool El.
683
Temporary Pool El:
683
Clean Out Depth:
3
Sediment Removal El
680
Bottom Elevation:
679
A I IAGH AUDI] JUNAL SHEETS IF NECESSARY
Permanent Pool El. 683
Temporary Pool El: 683
Clean Out Depth: 5.5
Sediment Removal El 677.5
Bottom Elevation: 677