SW3201202_O&M Agreement_20210401

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):
0
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Type:
MR_
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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,
9MEM
Responsible Party:
Street address:
City, state, zip:
Phone number(s):
Email:
Wil I ia rn M. Watson
County Manager, Union County
orth Main Street
1704-283-3636
'Mark._Wats o,[e-mail]
Date: o �Z tl �Vl
-------------------------------- ---- --- - ---- _
1, -r a Notary Public for the State of ,�lo Q. 0- 6 1 i/A a,
County of do hereby certify that
W; //;,a in M
personally appeared before me this day of and
acknowledge the due execution of the Operations and Maintenance Agreement
4-
Witness my hand and official seal, 4. lk///4
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Seal \ , y commission expires V
C A R 0
STORM-EZ 2/5/2021
Version 1.5 O&M Agreement Page I of I

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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.
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 1 0-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 -
erosive gullies have
sod (or plant with other appropriate species) and water until
Vegetated receiving
formed.
established, Provide lime and a one-time fertilizer application,
areas
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 -
erosive gullies have
sod (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 N
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.
Determine the source of the problem: soils, hydrology, disease,
Grass is dead, diseased or
etc. Remedy the problem and replace plants. Provide a one -
dying.
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,

Clogging has occurred.
Clean out the outlet device. Dispose of the sediment off -site.
The outlet device (if
applicable)
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 site
are causing erosion or
sedimentation in the
Contact the local NCDEQ Regional Office,
receiving water.