SW4090301_O&M Agreement_20090519

PCT3nil Number: 5"0 ! Uo I
(ro Le provided 6r MVQ) Drainage
Area Number: 1 r Z 3
Bioretention Operation and Maintenance Manual
MCDONALDS
S. MAIN ST. & BAILEY RD.
KING, NC
Owner to keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any and all maintenance sliall be documented in this log. Any
deficient BMP elements noted in the inspection will be corrected, repaired or replaced
immediately. 'These deficiencies call affect the integrity of structures, safety of the public, and
the removal efficiency of the BMP. Please keep a copy of this manual with the maintenance
log for reference. Any other problems or general questions about Bioretention cells call be
addressed at NC Division of Water Quality; Winston-Salem Regional Office [phone].
Important operation and maintenance procedures:
-Immediately after the bioretention cell is established, the vegetation will be watered
twice weekly if needed until the vegetation become established (commonly six
weeks).
-Snow, 113utch or any other material will NEVER be piled on the surface of the
bioretention cell.
-Heavy equipment will NEVER be driven over the bioretention cell.
-Special care will be taken to prevent sediment from entering the bioretention cell.
-Once a year, a soil test of the soil media will be conducted.
After the bioretention cell is established, the owner or owner's representative will inspect it
once a month and within 24 hours after every storm 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 immediately:
131,01, Clement.
[ Potential problems:
Hogs I ►Fill remediate the
The entire BNIP
Trash/debris is present.
Remove the trash/debris.

The perirrrctcr of the
Areas of bare soil and/or
Regrade the soil if necessary to
biorctention cell
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application,
HMP element:
Potential problems:
How I will rernediate the
problem
The inlet device: pipe,
The pipe is clogged (if
Unclog the pipe. Dispose of the
stone verge or swale
applicable).
sediment off -site.
The pipe is cracked or
Replace tite pipe,
otherwise damaged (If
applicable).
Stone verge is clogged or
Remove sediment and clogged
covered in sediment (if
stone and replace with clean stone.
a licable .
The pretreatment area
Flow is bypassing
Regrade if necessary to route all
pretreatment area and/or
flow to the pretreatment area.
gullies have formed.
Restabilize the area after grading.
Search for the source of the
sediment and remedy the problem
if ossiblc.
Sediment has accumulated to
Remove the sediment and
a depth greater than three
restabilize the pretreatment area.
inches.
Erosion has occurred.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
revent future erosion problems.
The biorctention cell:
Best professional practices
Prune according to best
vegetation
show that ?ruui119 is needed
)rofessional practice
Weeds are Prescnt
Remove the weeds, preferably by
hand
Tree stakes/wires are present
Remove tree stake/ wires
six months after planting.
(which can kill (lie tree if not
removed),
The biorctention
/Mulch is breaking down or
Spot mulch if there are only
cell: soils and
mulch
has floated away.
random void areas. Replace whole
mulch layer if necessary. Remove
the remaining much and replace
with triple shredded hind wood
mulch at a rllaXiMLlm depth of
three inches.

Soils and/or mulch are
Determine the extent of the
clogged with sediment.
clogging - remove and replace
either just the top layers or the
entire media as needed. Dispose of
the spoil in an appropriate oft -site
location. Use triple shredded hard
wood mulch at a maximum depth
of three inches. Search for the
soLirce of the sediment and
remedy the problcin if possible.
RMP clemcsit:
Potential problems:
How I will reniediate (lie problcin
The bioretention
An annual soil test shows
Dolomitic lane shall be applied as
cell: soils and mulch
that pl-I has dropped or
recommended per the soil test and
]wavy metals have
toxic soils shall be removed, disposed
accumulated in the soil
of properly and replaced with new
media.
planting 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 droR inlet is dama red
Repair or replace the drop inlet.
Contact the NC Division of Water
The receiving water
Erosion or other signs of
dainage have occurred at
Quality 401 Oversight Unit at 919-
the outlet.
733-1786.

Permit Number: S V 4fO? 0 3t
(to be iwovided by DWO
I 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: d t 5
BAIL' drainage area number:
Print name:
ritte:
Addre
Phone
Signat
Date:
EMMMUM
4-1-b
Note: The legally responsible party sliould not be a homeowners association unless more than 50% of
the lots [save been sold and a resident or the subdivision lens been named the president.
1� L
w+ C vD1►
C. Orr t
day of 2�
the forgoing Horetention
AOTARY
Plarc
COIN
SEAL
, County of
requ
IVIv Commission expires 1, %J
a Notary Public for the State of
�. do hereby certify that
personally appeared before me this
and acknowledge the due execution of
ants. 1Vtltnrssmy)and, and official seal,