SW6200904_O&M Agreement Form_20210122

Operation & Maintenance Agreement
Project Name: Timberland Ranch
Project Location: Calloway Road, Hoke 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 & corresponding O&M sheets will
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:
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:
8
No
No
No
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(Various locations 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:
County of
Responsible Party:
Title & Organization:
Street address:
City, state, zip:
Phone number(s):
Ema'
Ji u
Ralph Huff
President / Timberland Ranch, LLC
2919 Breezewood Avenue, Suite-499 100
Fayetteville, NC 28303
9104$64W4- 3 o a, 3� o e
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Date:
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a N Public for the State of No �VI Cg_"tDU✓1C�
do hereby c ify that D _ ►2 4 tVryt /A a:(F j
personally appeared before me this i - tY j day of
acknowledge the due execution of the Opyyera��tions✓and Maintenance Agreement .
Witness mY hand and official seal,
NOTAI?Y
MY
COMMISSION EXPIRES
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Seal
My commission expires
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STORM-EZ 1 /14/2021
Version 1.5 O&M Agreement Page 1 of 1

Infiltration Trench Maintenance Requirements
Important operation and maintenance procedures:
- The drainage area will be carefully managed to reduce the sediment load to the infiltration trench.
The water level in the monitoring wells will be recorded once a month and after every storm event
greater than 1.0 inches (or 1.5 inches if in a Coastal County.
The infiltration trench will be inspected once a quarter 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:
The entire infiltration
Trash/debris is present.
Remove the trash/debris.
trench
Areas of bare soil and/or
Regrade the soil if necessary to remove the gully, and then plant
erosive gullies have
a ground cover and water until it is established. Provide lime and
The grass filter strip or
formed.
a one-time fertilizer application.
other pretreatment area
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
three inches.
where it will not cause impacts to streams or the SCM.
Unclog the conveyance and dispose of any sediment in a location
The flow diversion
The structure is clogged.
where it will not cause impacts to streams or the SCM.
structure (if applicable)
Make any necessary repairs or replace if the damage is too much
The structure is damaged.
for repair.
Water is ponding on the
Remove the accumulated sediment from the top of the infiltration
surface for more than 24
trench and dispose of it in a location that will not impact a stream
hours after a storm.
or the SCM.
The trench
Grass or other plants are
Do not pull the weeds (may pull out media as well). Wipe them
growing on the surface of
with a systemic herbicide such as glyphosate and then return
within the week to remove them by hand. (Another option is to
the trench.
pour boiling water on them or steam them.)
Water present more than
Clean out any clogged underdrain pipes. Consult an appropriate
Observation well
three days after a storm
professional for clogged soil subgrade.
event
The emergency overflow
Erosion or other signs of
damage have occurred at
Repair or replace the berm.
berm
the outlet.
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
infiltration trench are
causing erosion or
Contact the local NCDEQ Regional Office.
sedimentation in the
receiving water.