SW3220305_O&M Agreement/Plan_20220325

Operation & Maintenance Agreement
Project Name:
Project Location:
Rocky River WWTP Phase 3 Expansion
6400 Breezy Ln, Concord, NC 28025
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:
ing 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):
Type:
De aaaea
Vegetated swales/roadside ditches 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.
Responsible Party:
Title & Organization:
Street address:
City, state, zip:
Phone number(s):
Email:
Chad VonCannon
En r Director, Water and Sewer Authority of Cabarrus County
232 Davidson Highway
Concord, NC, 28027
[phone]
[e-mail]
Signature: ( Date: a :*-11, �Qmo r -a ffleh5 r- GQf-� 4'� , a Notary Public for the State of
Nor* Canvuj-a
County of (� 1) LnairrU-�- do hereby certify that .had 1&r1LN rna s>
personally appeared before me this day of FAt-L ar u �fl �; and
acknowledge the due execution of the Operations and Maintenance Agreement.
Witness my hand and official seal,
ti �pTARy
Seal����r�+l11j1111iy���t������ My commission expires — urve pl () of
STORM-EZ
Version 1.5 O&M Agreement
2/4120:
Page 1 of

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 1
at the bottom of the swale.
streams or SCMs. Re -sod if necessary.
swales 1 roadside ditches
(other than curb outlet
The side slope is steeper
Regrade the slopes to the permitted configuration per the
swales)
than the approved
approved plan and reestablish vegetation. If as -built or existing
configuration.
conditions do not allow the slopes to be regraded, contact the
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.

Clogging has occurred.
Clean out the outlet device. Dispose of the sediment off -site.
The outlet device (if
applicable)
The outlet device is
damaged
Repair or replace the outlet device.
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.