SW5231002_O&M Agreement/Plan_20231019

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Project Name: Chatham Veterinary Services
Project Location: 1114 Greensboro Avenue, Siler City, NC
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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&corresponding O&M sheets will be added automatically):
Infiltration Basin Quantity: Location(s):
Infiltration Trench Quantity: Location(s):
Bioretention Cell Quantity: Location(s):
Wet Pond Quantity: Location(s):
Stormwater Wetland Quantity: Location(s):
Permeable Pavement Quantity: Location(s):
Sand Filter Quantity: 1 Location(s): 35.735481,-79,466005
Rainwater Harvesting Quantity: Location(s):
Green Roof Quantity: Location(s):
Level Spreader- Filter Strip Quantity: Location(s):
Proprietary System Quantity: Location(s):
Treatment Swale Quantity: Location(s):
Dry Pond Quantity: Location(s):
Disconnected impervious Surface Present:_ No Location(s):
User Defined SCM Present: No Location(s):
Low Density Present: 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: Katherine Scott
Title &Organization: Owner, JKSCOTT, LLC
Street address: 1751 Winfred Brady Road
City, state, zip: Bennett, NC 27208
Phone number(s): 919.548.3844
Email: [e-mail]
Signature: c,�r( ,.A -- Date: ti..) ! c-( ,);..3
I, r i _ "8, 1.e. , a Notary Public for the State of /tor* Cctro/nt
County of C.. a �J 2 , do hereby certify that /etlivLrf no 16(o l,d
personally appeared before me this "c1 64 day of ()C°-k,hPJ1 Wda and
acknowledge the due execution of the /p ations and ainte ante Agreement .
Witness my hand and official seal, a, .
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STORM-EZ 10/3/2023
Version 1.5 O& Agreement 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.
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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.
'ection 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 I IdbIl,uCrrrlb lb Remove the trash/debris.
Adjacent pavement Sediment is present
(if applicable) on the pavement Sweep or vacuum the sediment as soon as possible.
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
or too long. Maintain vegetation at an appropriate height.
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.
I I ie II IICL pipe lb
cracked or otherwise
damaged (if Repair or replace the pipe.
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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.
.LVnV" velye is
clogged or covered in Remove sediment and clogged stone and replace
sediment(if with clean stone.
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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.
Clogging has Clean out the outlet device and dispose of sediment
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.