SW5200702_OM_EZ_20200827

Project Name:
Project Location:
Snow Hill Road Pump Station
2525 Snow Hill Road, Durham NC
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:
onding O&M sheets will
0
Location(s):
0
Location(s):
0
Location(s):
0
Location(s):
0
Location(s):
0
Location(s):
0
Location(s):
0
Location(s):
0
Location(s):
0
Location(s):
0
Location(s):
0
Location(s):
0
Location(s):
No
Location(s):
No
Location(s):
(es
Type:
be added automatically):
Vegetated swales/roadside ditches
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:
Signature:
County of
personally appeared before me this
City of Durham Water Management
1600 Mist Lake Drive
Durham, NC 27704
[phone]
, a Notary Public for the State of
, do hereby certify that
day of
acknowledge the due execution of the Operations and Maintenance Agreement .
Witness my hand and official seal,
Seal
My commission expires
Date:
and
STORM-EZ 8/27/2020
Version 1.5 O&M Agreement Page 1 of 3

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 is too short or
Maintain grassed vegetation such that the swale or vegetated
Vegetation
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 -
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,
vegetation are present in
regrade the swale if necessary and re-establish grass as shown
the swale.
on the 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 /
at the bottom of the swale.
streams or SCMs. Re -sod if necessary.
swales / roadside
The side slope is steeper
Regrade the slopes to the permitted configuration per the
ditches (other than curb
than the approved
approved plan and reestablish vegetation. If as -built or existing
outlet swales)
configuration.
conditions do not allow the slopes to be regraded, contact the
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
the vegetated conveyance.
and 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.
Discharges from the site
The receiving water
are causing erosion or
Contact the local NCDEQ Regional Office.
sedimentation in the
receiving water.