SW1210503_O&M_20220914

Operation & Maintenance Agreement
Project Name: Hot Springs Microgrid
Project Location: Hot Springs, NC (Lat: 35.89 Lon:-82.83)
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&corres onding 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- Yes I ocation(s):
Low Density Present: Yes Type: Dispersed flow only
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:Duke Energy Carolinas,LLC
Title&Organization: Director of Customer Delivery Project Management
Street address: 526 S Church St
City,state,zip: Charlotte,NC 28202
Phone number(s): 727-820-4569
Email: [e-mail]
Signature: Date: ZZ
I, V)CACAle)lr ' a Notary Public for the State of d
County of pno &z do hereby certify that Sri i/yo �.� (yJ
personally appeared before me this day of and
acknowledge the due execution of the Opqlations and ai ena�e Agreement.
Witness my hand and official seal,
BRIAN HEID
Notary Public-State of F orida
Commission#HH 242607
My Commis
i 2026 pi es
JulSeal My commission expires ro A2 a2(�
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User t efined SCM Maintenancelie 'utrements
Seafie�tt i
Important operation and maintenance procedures.
-NCDEQ E-6 RECOMMENDATION 1:AVOID COMPACTION OF SUBSOIL
-NCDEQ E-6 RECOMMENDATION 3:AVOID CONCENTRATION OF STORMWATER
-NCDEO E-6 RECOMMENDATION 4:MINIMIZE USE OF HERBICIDES AND FERTILIZERS
-Vegetation shall be in meadow conditions to alleviate sediment load leaving the site.
The system will be inspected at least quarterly, Records of operation and maintenance will be kept in a known set
location and will be available upon request.
Section 2
Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately.
SCM element. Potential roblerm How to remediate the robtesr€.
Ve etative Graver Bare sail J Erosion Replant as necessa andPar grade to reduce erosion.
Va etatiive Cover Vegetation Vegetation shall be maintain at approximately 10-1 inches
Recelvin Water Bod Sediment I oadino Contact NC Division of`!slater Quality
Low De��ance 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 !:�
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 rennediate 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,
Vegetated receiving Areas of bare soil and/or Regrade the soil if necessary to remove the gully,and then re-
areas erosive gullies have sod(or plant with other appropriate species)and water until
formed. established. Provide lime and a one-time fertilizer application,
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