SW6230704_O&M Agreement/Plan_20230810

Operation & Maintenance Agreement
Project Name: Riverfall Phase 2
Project Location: Ennis Road, Angier, 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&corresponding O&M sheets will be added automatically):
infiltration Basin Quantity: Location(s):
Infiltration Trench Quantity: Location(s):
Bioretention Cell Quantity: Location(s):
Wet Pond Quantity: Location(s):
Stormwater Wetland Quantity: Location(s):
Permeable Pavement Quantity: Location(s):
Sand Filter Quantity: Location(s):
Rainwater Harvesting Quantity: Location(s):
Green Roof Quantity: Location(s):
Level Spreader-Filter Strip Quantity: Location(s):
Proprietary System Quantity: Location(s):
Treatment Swale Quantity: Location(s):
Dry Pond Quantity. Location(s):
Disconnected Impervious Surface Present No Location(s):
User Defined SCM Present: No Location(s):
Low Density Present Yes Type: Ve�cetated 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: Joe Conlan
Title&Organization: Vice President, Mattamy Homes,LLC
Street address: 11000 Regency Parkway, Suits 110
City, state,zip: Cary, NC 27518
Phone number(s): 269-547-3807
Email: [e-mail]
Signature: + : Cthil Date:
_44_5 _
I, NI-A S< K 1/4.)`�Kam-- ,a Notary Public for the State of t l' CAROL-t NIA
County of a.Ke ,do hereby certify that So 15P r+ 9 6c,,..�L-A.J
personally appearedt"1
p y before me this c� day of J V aOa3 and
acknowledge the due execution of the Ope otjs and Maintenpnce Agreement.
Witness my hand and official seal,
4:5-
'a NOTARY :=
PUBLIC ,�°
•
Seal iiijii`/rrilion o‘,A My commission expires Mi42 • a..1 boy
STORM-EZ
6/2/2023
Version 1.5 O&M Agreement p=no 1 nf

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 is too short or Maintain grassed vegetation such that the swale or vegetated
Vegetation too Ion area does not erode during the peak flow from the 10-year
g 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-
Vegetated receiving erosive gullies have sod(or plant with other appropriate species)and water until
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,
vegetation are present in regrade the swale if necessary and re-establish grass as shown
the swale. on the approved plans.
Trashldebr s is present. Remove the trash/debns.
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. 1 streams or SCMs. Re-sod if necessary.
swales/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.
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 ti--e sediment off-site.
The outlet device "F
applicable)
The outlet device is
damagedRepair or replace the det device.
Erosion or other signs of
damage have occurred at Repair the danr ge and improve The flow dissipation structure.
the outlet.
The receiving water Discharges from the site
are causing erosion or
sedimentation ii the Contact the local NCDEQ Regional Office.
receiving water.