SW1221002_O&M Agreement/Plan_20230804 (2)

Operation & Maintenance Agreement
Project Name: Asheville Regional Airport Terminal Modernization and Expansion
Project Location: Fletcher, 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: 1 Location(s): South of airport terminal
Disconnected Impervious Surface Present: No Location(s):
User Defined SCM Present: No Location(s):
Low Density Present: No Type:
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: Michael Reisman
Title&Organization: Chief Operating Officer, Greater Asheville Regional Airport Authority
Street address: 61 Terminal Drive, Suite 1
City, state, zip: Fletcher, North Carolina 28732
Phone number(s): 828-654-3253
Email: [e-mail]
Signature: - Ac;,A,",_ Date: g -2
I, trii 1 e r, r^k, i4 t-, wOOd , a Notary Public for the State of 1\414�� CA yo\ r\&,
County of (Jr' , do hereby certify that tl161-1G�?�� ) ��? (ti f n
personally appeared before me this 3 Yd, day of R Uq /$-(- IZQ. and
J
acknowledge the due execution of the Operations and Maintenance Agre ment
Witness
tness my hand and official seal, ( • .
ELLEN M HEYWOOD
NOTARY PUBLIC
HENDERSON COUN-Y,NC
Mr Commission Expires 5-'0-2024
$ 1M-EZ My commission expires / (i)?)..�+ 8/2/2023
Version 1.5 O& Ayreerlrent Page 1 of 1

Dry Pond Maintenance Requirements
Important operation and maintenance procedures:
- The drainage area will be managed to reduce the sediment load to the dry pond.
- Immediately after the dry pond is established, the vegetation will be watered twice weekly if needed
- After the initial fertilization to establish vegetation in the dry pond,fertilizer will not be applied to the
- The vegetation in and around the basin will be maintained at a height of approximately six inches.
- At least once annually, a dam safety expert will inspect the embankment.Any problems that are found
After the dry pond is established, it shall be inspected quarterly and within 24 hours after every storm event greater
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:
The entire SCM Trash/debris is present. Remove the trash/debris.
The perimeter of the Areas of bare soil and/or Regrade the soil if necessary to remove the gully, plant ground
The inlet pipe is clogged (if Unclog the pipe. Dispose of the sediment in a location where it
The inlet device The inlet pipe is cracked or Repair or replace the pipe.
Erosion is occurring in the Regrade the swale if necessary and provide erosion control
Sediment has accumulated Search for the source of the sediment and remedy the problem if
The forebay Erosion has occurred. Provide additional erosion protection such as reinforced turf
Weeds are present. Remove the weeds, preferably by hand. If pesticide is used,
Sediment has accumulated Search for the source of the sediment and remedy the problem if
The main treatment area Water is standing more Check the outlet structure for clogging. If it is a design issue,
Weeds and noxious plants Remove the weeds, preferably by hand. If pesticide is used,
Dry Pond Maintenance Requirements (continued)
SCM element: Potential problem: How to remediate the problem:
Shrubs have started to Remove shrubs immediately.
The embankment Evidence of muskrat or Consult a professional to remove muskrats or beavers and
A tree has started to grow Consult a dam safety specialist to remove the tree.
An annual inspection by an Make all needed repairs immediately.
The outlet device Clogging has occurred. Clean out the outlet device. Dispose of the sediment in a
The outlet device is Repair or replace the outlet device.
The receiving water Erosion or other signs of Repair the damage and improve the flow dissipation structure.
Discharges from the dry Contact the local NCDEQ Regional Office.
Dry Detention Pond Design Summary
Dry Pond Diagram
DRY POND ID FOREBAY MAIN POND
Dry Detention Pond 1 Temporary Pool El: 2122.5 Temporary Pool El: 2120.1
Clean Out Depth: 0.5 Clean Out Depth: 2.6
Pretreatment Yes Sediment Storage El: 2122 Sediment Storage El: 2117.5
Has Veg.Filter No Bottom Elevation: 2121 Bottom Elevation: 2114.1