SW1200501_O&M Agreement_20201009

Operation & Maintenance Agreement
Project Name:
Project Location:
Car Rider Improvements Fairview Elementary School Buncombe
1355 Charlotte Hwy, Fairview, NC 28704
Cover Page
Maintenance records shall be kept on the following BMP(s). This maintenance record shall be kept in a log in a known set location.
Any deficient BMP 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 BMP(s).
The BMP(s) on this project include (check all that apply & cc
Bioretention Cell
Quantity:
Dry Detention Basin
Quantity:
Grassed Swale
Quantity:
Green Roof
Quantity:
Infiltration Basin
Quantity:
Infiltration Trench
Quantity:
Level SpreaderNFS
Quantity:
Permeable Pavement
Quantity:
Proprietary System
Quantity:
Rainwater Harvesting
Quantity:
Sand Filter
Quantity:
Stormwater Wetland
Quantity:
Wet Detention Basin
Quantity:
Disconnected Impervious Area
Present:
User Defined BMP
Present:
nding O&M tables will
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
oe aaaea automatically):
NE _& SW Corners of site
acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed
for each BMP above, and attached O&M tables. I agree to notify NCDENR 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)
Clark Wyatt
Board of Education of Buncombe County
175 Bingham Road
: Asheville, NC 28806
.255.5921
[e-mail]
Signature: Date 8 ZG Lo 7-
1 lL4 'J ��; �/ , a Notary Public for the State of
County of _/Z�� ; I do hearby certify that r
personally appeared before me this day of ,,,Z 761Ze and
acknowledge the due execution of the ODer44J,ons a d Mainten nce Agreement .
Witness my k1 mq end official seal,
,Z
RM-EZ
8/18/2020
Page 1 of 4
O&M Manual

Seal My commission expires
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Version 1.4 O&M Manua[ Page 2 of 4

Bioretention Maintenance Requirements
Important operation and maintenance procedures:
- Immediately after the bioretention cell is established, the plants will be watered twice weekly if needed until the plants
become established (commonly six weeks).
- Snow, mulch or any other material will NEVER be piled on the surface of the bioretention cell.
- Wheeled or tracked equipment will NEVER be driven over the bloretention planting surface.
- Special care will be taken to prevent sediment from entering the bioretention cell,
- If standing water is present 2 days after rainfall, conduct an infiltration test of the soil media,
After the bioretention cell is established, inspect it quarterly. Inspection activities shall be performed as follows and maintenance
activites shall commence immediately to remediate any problems observed per the table below.
BMP element:
Potential problem:
How to remediate the problem:
The entire BMP
Trash/debris is present.
Remove the trash/debris,
.The perimeter. of the BMP
Areas of bare soil and/or
Regrade the soil to remove the gully, and plant a ground cover and
erosive gullies have formed.
water until it is established. Provide lime and a one-time fertilizer
application.
Vegetation is too short or too
Maintain vegetation at a height of approximately six inches.
long.
The inlet device
The pipe is clogged.
Unclog the pipe. Dispose of the sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged.
Erosion is occurring in the
Regrade the swale to smooth it over and provide erosion control
swale.
devices such as reinforced turf matting or riprap to avoid future
problems.
Stone verge is clogged or
Remove sediment and replace with clean stone.
covered in sediment (if
applicable).
The pretreatment area
Flaw is bypassing
Regrade if necessary to route all flow to the pretreatment area,
pretreatment area and/or
Restabilize the area after grading.
gullies have formed.
Sediment has accumulated to
Search for the source of the sediment and remedy the problem if
a depth greater than three
possible. Remove the sediment and restabilize the pretreatment area.
inches.
Erosion has occurred.
Provide additional erosion protection such as reinforced turf matting or
riprap if needed to prevent future erosion problems.
Weeds are present.
Remove the weeds, preferably by hand.
The bioretention cell:
Best professional practices
Prune according to best professional practices.
vegetation
show that pruning is needed
to maintain optimal plant
health.
Plants are dead, diseased or
Determine the source of the problem; soils, hydrology, disease, etc.
dying.
Remedy the problem and replace plants. Provide a one-time fertilizer
application to establish the ground cover if a soil test indicates it is
necessary.
Tree stakes/wires are present
j Remove tree stake/wires (which can kill the tree if not removed),
six months after planting.
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Bioretention Maintenance Requirements (continued)
BMP element:
Potential problem:
How to remediate the problem:
The bioretention cell:
Mulch is breaking down or
Spot mulch if there are only random void areas, Replace whole mulch
soils and mulch
has floated away.
layer if necessary. Remove the remaining much and replace with
triple shredded hard wood mulch at a maximum depth of three inches.
Soils and/or mulch are
Determine the extent of the clogging remove and replace either just
clogged with sediment.
the top layers or the entire media as needed. Dispose of the spoil in
an appropriate off -site location. Use triple shredded hard wood mulch
at a maximum depth of three inches. Search for the source of the
sediment and remedy the problem if possible.
An annual soil test shows that
Dolomitic lime shall be applied as recommended per the soil test and
pH has dropped or heavy
toxic soils shall be removed, disposed of properly and replaced with
metals have accumulated in
new planting media.
the soil media.
The underdrain system
Clogging has occurred.
Wash out the underdrain system,
(if applicable)
The drop inlet
Clogging has occurred.
Clean out the drop inlet, Dispose of the sediment off -site.
The drop inlet is damaged
Repair or replace the drop inlet.
The receiving water
Erosion or other signs of
Contact the local NC Department of Environment and Natural
damage have occurred at the
Resources Regional Office.
outlet.
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