SW3221008_O&M Agreement/Plan_20221024

Operation & Maintenance Agreement
Project Name: The Estates at Marvin Branch
Project Location: Marvin, NC
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 & co
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:
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):
Typo:
oe aaaea
iCurb outlet system
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: Robert Kreisher
Title & Organization: Vice President Charlotte for JCH NC, LLC
Street address: 414 Turtleback Ridge
City, state, zip: Weddington, NC 28104
Phone number(s): 704-619-9686
EmaiL4j:[e-mail]
Signature: Date: f`
I, _ ►Zo-az 4 JLG.Ary. — , a Notary Public for the State of "Jo M-44 nwxo4.Zr 4
County of Me-e, Ak411 16 Ci do hereby certify that T", Be.ZT— AiIze, S 4e-a-
personally appeared before me this /3 day of �4 H uti � y , Zc> 2 a— and
acknowledge the due execution of the Ope� aintonance Agreement .
Witness VIAY'd[ .1ficial seal,
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Sea! tt t t My commission expires IZAS Zv Z
STORM-EZ 1/12/2022
Version 1.5 O&M Agreement Page 1 of 1

Low Density Maintenance Requirements
Important maintenance procedures:
The drainage area to the vegetated conveyance or vegetated receiving area will be carefully managed
to reduce the sediment load to the vegetated conveyance or vegetated receiving area.
After the initial fertilization to establish the grass in the vegetated conveyance or the vegetated receiving
area, fertilizer will not be applied to the vegetated receiving areas.
The vegetated conveyance or vegetated receiving area will be inspected quarterly. 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.
SCM element:
Potential problem:
How to remediate the problem:
Vegetation
Vegetation is too short or
Maintain grassed vegetation such that the Swale or vegetated
too long.
area does not erode during the peak flow from the 10-year storm
Trash/debris is present.
Remove the trash/debris.
Areas of bare soil and/or
Regrade the soil if necessary to remove the gully, and then re -sod
erosive gullies have
(or plant with other appropriate species) and water until
Vegetated receiving areas
formed.
established. Provide lime and a one-time fertilizer application.
Trees and/or other woody
Remove the trees and woody vegetation from the swale, regrade
vegetation are present in
the swale if necessary and re-establish grass as shown on the
the swale.
approved plans.
Trash/debris is present.
Remove the trash/debris.
Areas of bare soil and/or
Regrade the soil if necessary to remove the gully, and then re -sod
erosive gullies have
(or plant with other appropriate species) and water until
formed.
established. Provide lime and a one-time fertilizer application.
Sediment covers the grass
Remove sediment and dispose in an area that will not impact
Vegetated conveyances /
at the bottom of the swale.
streams or SCMs. Re -sod if necessary.
swales / roadside ditches
Regrade the slopes to the permitted configuration per the
(other than curb outlet
The side slope is steeper
approved plan and reestablish vegetation. If as -built or existing
swales)
than the approved
conditions do not allow the slopes to be regraded, contact the
configuration.
applicable permitting agency.
Grass is dead, diseased or
Determine the source of the problem: soils, hydrology, disease,
dying.
etc. Remedy the problem and replace plants. Provide a one-time
fertilizer application to establish the ground cover if necessary.
Trees and/or other woody
Remove the trees and woody vegetation from the vegetated
vegetation are present in
conveyance, regrade the vegetated conveyance if necessary and
the vegetated conveyance.
re-establish grass as shown on the approved plans.

The longitudinal slope
Regrade to meet the permitted longitudinal slope as shown on the
exceeds 5%.
approved plans.
Curb outlet swales or
The swale profile does not
Regrade the swale to the approved profile as shown on the
vegetated areas
match the approved detail.
approved plans.
The length of the swale or
Extend the swale to achieve the 100-foot minimum length. If as -
vegetated area is less than
built or existing conditions do not allow the slopes to be regraded,
100 feet.
contact the applicable permitting agency.
Clogging has occurred.
Clean out the outlet device. Dispose of the sediment off -site.
The outlet device (if
The outlet device is
damaged
Repair or replace the outlet device.
applicable)
Erosion or other signs of
damage have occurred at
Repair the damage and improve the flow dissipation structure.
the outlet.
Discharges from the site
The receiving water
are causing erosion or
sedimentation in the
Contact the local NCDEQ Regional Office.
receiving water.

Infiltration'Basin Maintenance Requirements
Important operation and maintenance procedures:
- The drainage area will be carefully managed to reduce the sediment load to the infiltration basin.
No portion of the infiltration basin will be fertilized after the initial fertilization that is required to
- establish the vegetation. Lime may be allowed if vegetation is planted on the surface of the
infiltration basin and a soil test shows that it is needed.
- The vegetation in and around the basin will be maintained at a height of four to six inches.
After the infiltration basin is established, it will 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:
The entire infiltration
Trash/debris is present.
Remove the trash/debris.
basin
Areas of bare soil and/or
Regrade the soil if necessary to remove the gully, plant ground
erosive gullies have
cover and water until it is established. Provide lime and a one -
The grass filter strip or
formed.
time fertilizer application.
other pretreatment area
Sediment has
Search for the source of the sediment and remedy the problem
accumulated to a depth of
if possible. Remove the sediment and dispose of it in a location
greater than three inches.
where it will not cause impacts to streams or the SCM.
The structure is clogged.
Unclog the conveyance and dispose of any sediment in a
The flow diversion
location where it will not cause impacts to streams or the SCM.
structure (if applicable)
Make any necessary repairs or replace if damage is too much
The structure is damaged.
for repair.
The inlet pipe is clogged
Unclog the pipe and dispose of any sediment in a location
(if applicable).
where it will not cause impacts to streams or the SCM.
The inlet pipe is cracked
or otherwise damaged (if
Repair or replace the pipe.
applicable).
Erasion is occurring in the
Regrade the swale if necessary and provide erosion control
The inlet device
Swale (if applicable).
devices such as reinforced turf matting or riprap to avoid future
erosion problems.
Stone verge is clogged or
Remove sediment and clogged stone and replace with clean
covered in sediment (if
stone.
applicable).
More than four inches of
Search for the source of the sediment and remedy the problem
sediment has
if possible. Remove the sediment and dispose of it in a location
accumulated.
where it will not cause impacts to streams or the SCM.
The basin
Erasion of the basin
surface has occurred or
Provide additional erosion protection such as reinforced turf
riprap is displaced.
matting or riprap if needed to prevent future erosion problems.
Water is standing more
Replace the top few inches of soil to see if this corrects the
than three days after a
standing water problem. If not, consult an appropriate
storm event,
professional for a more extensive repair.

Infiltration' Basin` Maintenance Requirements (continued)
SCM element:
Potential problem:
How to remediate the problem:
Shrubs or trees are
growing on the
Remove shrubs and trees immediately.
embankment.
The embankment
An annual inspection by
an appropriate
professional shows that
Make needed repairs immediately.
the embankment needs
repair.
Clogging has occurred.
gg g
Clean out the outlet device and dispose of sediment in a
location where it will not cause impacts to streams or the SCM.
The outlet device
The outlet device is
Repair or replace the outlet device.
damaged
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 basin are
causing erosion or
Contact the local NCDEQ Regional Office.
sedimentation in the
receiving water.