SW3201002_send original - O&M - Signed_20201022

Operation & Maintenance Agreement
Project Name: 7-11 Long Ferry Road
Project Location: Rowan County
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 & correspo
Infiltration Basin
Quantity:
Infiltration Trench
Quantity:
Bioretention Cell
Quantity:
Wet Pond
Quantity:
Stormwater Wetland
Quantity:
Permeable Pavement
Quantity:
Sand Filter
Quantity:
1
Rainwater Harvesting
Quantity:
Green Roof
Quantity:
Level Spreader - Filter Strip
Quantity:
Proprietary System
Quantity:
Treatment Swale
Quantity:
Dry Pond
Quantity:
Disconnected Impervious Surface
Present:
No
User Defined SCM
Present:
I No
Low Density
Present:
No
g O&M sheets will be added automatically):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s): Southeast corner of property
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
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:
Timothy B. Sittema
Manager - C4 Cstore Holdings II, LLC
121 West Trade Street, Suite 2550
Charlotte, North Carolina 28202
704.561.5200
[e-mail]
Lp V—C,+A-o, C). �-e]Cy-; v,e , a Notary Public for the State of
Date: 1, a' 1, �'b
FA -
County of (7"�� do hereby certify that 'Fi
personally appeared before me this day of �2-kf� 101er-, p6 AcD and
acknowledge the due execution oft O rations and Maintenance Agreement .
Witness my hand and official se I,
WMAX,,,a
My commission expires G� - 5 47,6&a.
STORM-EZ 9/24/2020
Version 1.5 O&M Agreement Page 1 of 1

Sand Filter Maintenance Requirements
Important operation and maintenance procedures
- Manage the drainage area to reduce the sediment load to the sand filter.
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- At least once a year, skim the sand media
- Replace the sand filter media whenever it fails to function properly after maintenance
After the sand filter is established, it shall be inspected quarterly and within 24 hours after every
storm event greater than 1.0 inches (or 1.5 inches if in a Coastal County) . Records of operation
and maintenance shall be kept in a known set location and shall be available upon request.
section activities shall be performed as follows. Any problems that are found shall be repaired immediately.
SCM element:
Potential problem:
How to remediate the problem:
Entire sand filter
Remove the trash/debris.
Adjacent pavement
Sediment is present
Sweep or vacuum the sediment as soon as possible.
(if applicable)
on the pavement
Areas of bare soil
Regrade the soil if necessary to remove the gully,
and/or erosive gullies
plant ground cover and water until it is established.
The perimeter of the
have formed.
Provide lime and a one-time fertilizer application.
sand filter
Vegetation is too short
Maintain vegetation at an appropriate height.
or too long.
The structure is
Unclog the structure and dispose of sediment in a
The flow diversion
clogged.
location where it will not cause impacts to streams or
structure (if
applicable)
The structure is
Make any necessary repairs or replace if the damage
damaged.
is too much for repair.
The inlet pipe is
Unclog the pipe and dispose of sediment in a location
clogged (if
where it will not cause impacts to streams or the SCM.
cracked or otherwise
Repair or replace the pipe.
damaged (if
The inlet device
Erosion is occurring in
Regrade the swale if necessary and provide erosion
the swale (if
control devices such as reinforced turf matting or
applicable).
riprap to avoid future problems with erosion.
clogged or covered in
Remove sediment and clogged stone and replace
sediment (if
with clean stone.
Sediment has
Search for the source of the sediment and remedy the
accumulated to a
problem if possible. Remove the sediment and
depth of greater than
dispose of it in a location where it will not cause
six inches.
impacts to streams or the SCM.
Sediment chamber
Provide additional erosion protection such as
(forebay)
Erosion has occurred.
reinforced turf matting or riprap if needed to prevent
future erosion problems.
Weeds are present.
Remove the weeds, preferably by hand. If a pesticide
is used, wipe it on the plants rather than spraying.

Sand Filter Maintenance Requirements (continued)
SCM element:
Potential problem:
How to remediate the problem:
Water is ponding on
Check to see if the collector system is clogged and
Sand chamber and
the surface for more
flush if necessary. If water still ponds, remove the top
underdrain collection
system
than 24 hours after a
few inches of filter bed media and replace. If water
storm.
still ponds, then consult an appropriate professional.
Clean out the outlet device and dispose of sediment
Clogging has
gg g
occurred.
in a location where it will not cause impacts to
The outlet device
streams or the SCM.
The outlet device is
damaged.
Repair or replace the outlet device.
Erosion or other signs
of damage have
Repair the damage and improve the flow dissipation
occurred at the outlet.
structure.
The receiving water
Discharges from the
sand filter are causing
erosion or
Contact the local NCDEQ Regional Office.
sedimentation in the
receiving water.