SW4190901_Operation & Maintenance Agreement (XG3)_1/20/2020

Operation & Maintenance Agreement
Project Name:
Project Location:
O'Reilly Auto Lexington, NC
6265 Old U.S. 52 Lexington, NC
Maintenance records shall be kept on the following BMP(s
Cover Page
is maintenance record shall be kept in a log in a known set location.
Any deficient BMP 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 BMP(s).
The BMP(s) on this project include (check all that apply & corresponding O&M tables will
Bioretention Cell Quantity: I Location(s):
Dry Detention Basin
Grassed Swale
Green Roof
Infiltration Basin
Infiltration Trench
Level SpreaderNFS
Permeable Pavement
Proprietary System
Rainwater Harvesting
Sand Filter
Stormwater Wetland
Wet Detention Basin
Disconnected Impervious Area
User Defined BMP
Quantity:
Quantity:
Quantity:
Quantity:
Quantity:
Quantity:
Quantity:
Quantity:
Quantity:
Quantity:
Quantity:
Quantity:
Present:
Present:
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):
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Northwest corner of site, west of building
I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed
for each BMP above, and attached O&M tables. I agree to notify NCDENR of any problems with the system or prior to any
changes to the system or responsible party.
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Version 1.4
* Responsible Party:
Title & Organization:
Street address:
Scott Kraus
Senior Vice President of Real Estate -O'Reilly Automotive Stores, Ir
233 S. Patterson
1/1 5/202C
Pinnc 1 of A

City, state, zip:
Phone number(s):
Email:
Signature:
Springfield, MO 66842
417-862-3333
[e-mail]
Date: J iro�o2U
a Notary Public for the State of 411,550U
County of G re,en e , do hearby certify that 'See*�- kro 1
personally appeared before me this day ofand
acknowledge the due execution of the Operations and Maintenance Agreement.
Witness my hand and official seal,
WEDNESDAY PArryyGE
rvoSTr Pu
OF MISSOURI
Christian County
tYlj Commission Expires Apr. 4, 2021
Commission 13405367
Seal
My commission expires
,el/y/ar
STORM-EZ
1 /15/202(
Version 1.4 O&M Manual I

Sand Filter Maintenance Requirements
Important maintenance procedures:
- The drainage area will be carefully managed to reduce the sediment load to the sand filter.
- The sedimentation chamber or forebay will be cleaned out whenever sediment depth exceeds six inches.
- Once a year, sand media will be skimmed.
- The sand filter media will be replaced whenever it fails to function properly after maintenance.
The sand filter 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 will be kept in a known set location and will be available upon
request.
Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately.
BMP element:
I Potential problem:
How to remediate the problem:
Entire BMP
Trash/debris is present.
Remove the trash/debris.
Adjacent pavement (if
Sediment is present on the
Sweep or vacuum the sediment as soon as possible.
applicable)
pavement surface.
Perimeter of sand filter
Areas of bare soil and/or
erosive gullies have formed
Regrade the soil if necessary to remove the gully, and then plant a
ground cover and water until it is established. Provide lime and a one-
time fertilizer application.
Vegetation is too short or too
Maintain vegetation at an appropriate height.
long.
Flow diversion structure
The structure is clogged.
Unclog the conveyance and dispose of any sediment offsite.
The structure is damaged.
Make any necessary repairs or replace if damage is too large for
repair.
The inlet device
The pipe is clogged.
Unclog the pipe. Dispose of the sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged.
Erosion is occurring in the
swale.
Regrade the swale if necessary to smooth it over and provide erosion
control devices such as reinforced turf matting or riprap to avoid future
problems with erosion.
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Stone verge is clogged or
Remove sediment and replace with clean stone.
covered in sediment (if
applicable).
Forebay or pretreatment
area
Sediment has accumulated to
a depth of greater than six
Search for the source of the sediment and remedy the problem if
possible. Remove the sediment and stabilize or dispose of it in a
inches.
location where it will not cause impacts to streams or the BMP.
Erosion has occurred.
Provide additional erosion protection such as 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.
Filter bed and underdrain
collection system
Water is ponding on the
surface for more than 24
Check to see if the collector system is clogged and flush if necessary.
If water still ponds, remove the top few inches of filter bed media and
hours after a storm.
replace. If water still ponds, then consult an expert.
The outlet device
Clogging has occurred.
Clean out the outlet device. Dispose of the sediment off -site.
The outlet device is damaged
Repair or replace the outlet device.
The receiving water
Erosion or other signs of
Contact the local NC Department of Environment and Natural
damage have occurred at the
Resources Regional Office.
outlet.
STORM-EZ 1/15/2020
Version 1.4 O&M Manual Pnna d r%f n