SW1200502_Wetland O&M Agreement_5/14/2020

Permit Nwnber:
(io be provided by.;DWQ)
Drainage Area .Number:
Stormwater Wetland Operation and Maintenance Agreement
I will keep a maintenance record on this 13MP. This maintenance record willbe kept in a log in a
known set location. Any deficient: BMP elements noted in. the inspection will be. convected, repaired or
replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and
the removal efficiency of the BMP.
Important maintenance procedures:
Immediately following construction of the stormwater wetland, bi-weekly inspections will be
conducted and wetland. plants will be watered bi-weekly until vegetation becomes established
(commonly six weeks):
No portion of the stormwater wetland will be fertilized after the first initial fertilization that is
required to establish the wetland plants.
- Stable groundcover will be maintained in the drainage area to reduce the sediment load to the
wetland.
Once a year, a dam safety expert should inspect the. embankment.
After. the stormwater wetland is established, I will inspect it monthly and within 24 hours after every
store event greater than 1.0 inches (or 1.5 inches if in a Coastal County). 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
irnrnediately.
Entire BMP
Trash/debris is present.
Remove the trash debris.
Perimeter of wetland
Areas of bare soil and/or erosive
Regrade the soil if necessary to remove. the
gullies have formed.
gully, and then plant a ground cover and
water until it is established. Provide Iime
and.a one-time fertilizer application.
Vegetation is too short or too .long.
Maintain vegetation at an appropriate
height,
Inlet device: pipe or
The pipe is clogged (if applicable).
Unclog the pipe. Dispose of the sediment
swale
offsite.
The pipe is cracked or otherwise.
Replace.the pipe:
dams ed if applicable).
Erosion is occurring in the. swale (if
Regrade the swale if necessary to smooth
applicable).
it over and provide erosion control
devices such as reinforced turf .matting or
riprap to avoid fixture problems with.
erosion.
Form SW4401-Wetland O&M-Rev.4 Page 1 of 3

Permit Number:
f c be provided by 27WQ)
Nten
larebay
Sediment has accumulated in the
Search for the source of the sediment:and
forebay to.a depth. that inhibits the
remedy the problem if possible. Remove
forebay from functioning w.eII.
the sediment and dispose of it in a location
where if will not cause. impacts to streams
or the BMP.
Erosion has occurred.
Provide additional erosion protection such
as reinforced turf.matting or.riprap if
heeded to prevent future erosion
problems._
Weeds are present..
Remove the weeds, preferably by hand. If
,a pesticide is used, wipe it on the.plants
rather than spraying.
Deep pool, shallow water
Algal growth covers over 500/0 of the
Consult a professional to remove and
and shallow land areas
deep pool and shallow water areas.
control the .algal growth.
Cattails, phragmites or other invasive
Remove invasives by physical removal or
plants cover .50% of the deep pool and
by wiping their with pesticide (do not
shallow water areas,
spray) -- consult a professional.
Shallow land retrains flooded more
Unclog the outlet device immediately.
than 5 days after a storm event.
PIants are dead, diseased or dying.
Determine the source of the.problein:
soils, hydrology, disease, etc. Remedy the
problem and replace plants. Provide a
one-time. fertilizer application to establish
the ground cover if necessary.
Best professional practices show that
Prune according to best professional
pruning is needed to maintain optimal
practices.
plant health.
Sediment has accumulated and
Search for the source of the sediment and.
reduced the .depth to.75% of the
remedy the problem if possible. Remove
original design.depth of the deep
pools.
the sediment and dispose of it in a location
where it will not cause impacts to streams
or the BMP.
Embankment
A tree has started to grow on the
Consult a dam safety specialist to remove
embankment.
the tree.
An annual inspection by appropriate
:Make all needed .repairs.
professional shows that the
embankment needs repair.
Evidence of muskrat or beaver activity
Consult a professional to remove muskrats
is present.
or beavers.
Mieropool
Sediment has accumulated and
Search for the source of the sediment and
reduced. the depth to 75% of the
remedy the problem if possible. Remove
original design depth.
the sediment and dispose of it in a location
wheredt will not cause impacts to streams
or the BMP.
Outlet device
Clogging has occurred..
Clean out the outlet device. Dispose of the
sediment off -site.
The outlet device.isdamaged
fte air or replace the outlet device.
Receiving water
Erosion or other signs of damage Have
Contact the NC Division of Water Quality
occurred. at the outlet.
401. Oversight Urut:at 519-733 1786.
Form SW40.1=Wetland O&M-Rev.4 Page 2 of

.Permit Number:
(to be provided by lJWO
1 acknowledge and agree by my signature below that I am responsible for the performance of the
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or.prior
to any changes to the system or responsible party.
Project name:North Carolina Arboretum Parking Exapnsion & Reconfiguration
BMP drainage area number:
Print narne.:Gcot a Brig s
Title: Executive Director
Address:100 Frederick. Law Olmstead Way, Asheville NC 28806
-� I0,I1'o
Note: The .legallyresponsible party should not be a homeowners association unless more than 50% of the lots have been
sold and a resident of the subdivision has been named the.presidenL
a Notary Public for the State of
County of , do hereby certify that
personally appeared before me this �_ day of
,, and acknowledge the due execution of the: Forgoing stormwater wetland
mainten ce requirements. Witness my hand and official seal,.
NpTAR �_
1Y
COMM E"Es
cs PUBL%G..Xl
SEAL
My commission expires
:Form SW401 _Wetland O&M-Rev.4 Page 3 of 3