SW3221201_O&M Agreement/Plan_20221206

Operation & Maintenance Agreement
Project Name: Carolina Pets Animal Hospital
Project Location: Waxhaw-Indian Trail Road, Wesley Chapel, NC 28014
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:
1[�9ilia] ITS 111
g O&M sheets will
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Type:
oe aQQea auiomaucaii
I Northwest Corner of Site I
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.
Signature:
Responsible Party:
Title & Organization:
Street address:
City, state, zip:
Phone number(s):
Email:
Heather Meyers
President of NGM Real Estate, LLC
5922 Weddington Road
Wesley Chapel, NC 28104
704-220-0226
[e-mail]
af Itv� o' rn a Notary Public for the State of
Date: 19ti 2d2Z
County of / A /60 - do hereby certify that a Oki s- t
personally appeared before me this �a _ day of &Je A kX,,,, and
acknowledge the due execution of the Operations and Maintenance Agreement .
Witness my hand and official seal, '
KAELEN KEAR NS
NOTARY PUBL!
Union County
North Carolina
My Commission Expires M ay 26, 2027
Seal
STORM-EZ
Version 1.5
My commission expires PA
°l .j 07,
O&M Agreement
4/6/2022
Page 1 of 3

Sand Filter Maintenance Requirements
Important operation and maintenance procedures:
- Manage the drainage area to reduce the sediment load to the sand filter.
- Clean out the sedimentation chamber or forebay whenever sediment depth exceeds six inches-
- 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.
Inspection 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
Trash/debris is present.
Remove the trash/debris.
Adjacent pavement (if
Sediment is present on the
applicable)
pavement surface.
Sweep or vacuum the sediment as soon as possible.
Areas of bare soil and/or
Regrade the soil if necessary to remove the gully, plant ground
The perimeter of the sand
erosive gullies have
cover and water until it is established. Provide lime and a one-time
filter
formed.
fertilizer application.
Maintain vegetation at an appropriate height,
Vegetation is too short or
too long.
The structure is clogged.
Unclog the structure and dispose of sediment in a location where
The flow diversion
it will not cause impacts to streams or the SCM.
structure (if applicable)
The structure is damaged.
Make any necessary repairs or replace if the damage is too much
for repair.
The inlet pipe is clogged (if
Unclog the pipe and dispose of sediment in a location where it will
applicable).
not cause impacts to streams or the SCM.
The inlet pipe is cracked or
otherwise damaged (if
Repair or replace the pipe.
applicable).
The inlet device
Erosion is occurring in the
Regrade the swale if necessary and provide erosion control
swale (if applicable).
devices such as reinforced turf matting or riprap to avoid future
problems with erosion.
Stone verge is clogged or
covered in sediment (if
Remove sediment and clogged stone and replace with clean
applicable).
stone.
Sediment has accumulated
Search for the source of the sediment and remedy the problem if
to a depth of greater than
possible. Remove the sediment and dispose of it in a location
six inches.
where it will not cause impacts to streams or the SCM.
Sediment chamber
Provide additional erosion protection such as reinforced turf
(forebay) Erosion has occurred.
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 Nialn6mam -o Raniiiramanfa [r•nn4iniiari1
SCM element:
Potential problem:
How to remediate the problem:
Sand chamber and
Water is ponding on the
Check to see if the collector system is clogged and flush if
underdrain collection
surface for more than 24
necessary. If water still ponds, remove the top few inches of filter
system
hours after a storm.
bed media and replace. If water still ponds, then consult an
appropriate professional.
Clogging has occurred.
gg g
Clean out the outlet device and dispose of sediment in a location
The outlet device
where it will not cause impacts to streams or the SCM.
The outlet device is
damaged.
Repair or replace the outlet device.
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 sand
filter are causing erosion or
sedimentation in the
Contact the local NCDEQ Regional Office.
receiving water.