20150296 Ver 1_More Info Received_20150609

Strickland, Bev
From: Devane, Boyd
Sent: Wednesday, July 08, 2015 2:34 PM
To: Strickland, Bev
Subject: Please file this in 15 -0296 Vickery

Permit Name.
(to be provided by DIVR)
Drainaee Area Number.
Grassed Swale (Enhanced, Curb Outlet and Conveyance)
Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will 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 removal efficiency of the BMP.
Important maintenance procedures:
— The drainage area of the grassed swale will be carefully managed to reduce the
sediment load to the grassed swale.
— After the first -time fertilization to establish the grass in the Swale, fertilizer will not
be applied to the grassed swale.
The grassed swale will be inspected once a quarter, or as per maintenance schedule
below. 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.
Ins}�ection Schedule
BMP element: I Potential eroblem: How I will remediate the problem:
The entire length of the Trash /debris is present. Remove the trash /debris.
Swale
The receiving water
Areas of bare soil and /or
erosive gullies have formed.
Sediment covers the grass at
the bottom of the swale.
Vegetation is too short or too
lonq.
Standing water or enhanced
swale clogging
Erosion or other signs of
damage have occurred at the
outlet.
Regrade the soil if necessary to
remove the gully, and then re -sod
(or plant with other appropriate
species) and water until established.
Provide lime and a one -time
fertilizer application.
Remove sediment and dispose in an
area that will not impact streams or
BMPs. Re -sod if necessary.
Maintain vegetation at a height of
approximately three to six inches.
Regrade swale if necessary. If at
enhanced swale, replacement of
media may be required.
Contact the NC Division of Water
Quality 401 Oversight Unit at 919-
733 -1786.
Form SW40 I -Grassed Swale O &M -Rev.4 Page 1 of 3

Maintenance Schedule
I Task:
Mowing
Inspection of rip rap aprons
I Trash or Debris removal
Reseed
Stabilization of eroded areas
Removal of sediment
Inspect for clogging (enhanced swale)
Permit Name:
(to be provided by DWR)
Drainage Area Number:
Schedule:
Weekly to Monthly (dependent upon growing season) —
Maintain 3 to 6" grass height
Quarterly
Weekly to Monthly — prior to mowing
Yearly
I Monthly
Quarterly
Quarterly
Form SW401- Grassed Swale O &M -Rev.4 Page 2 of 3

Permit Number:
(to be provided by DWR)
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: Vickery Subdivision
BMP drainage area number: Grassed Swales 1 -10, as shown on construction drawing
sheets C5.0 thru C5.3
Print name: Mike Kissel
Title: Land Development Manager
Address: 5615 Potter Road, Matthews, NC 28104
Phone: 704 - 821 -8020 ext. 23
Signature: %.
Date: r�'S 'X 9.._ ZO /_S
Note: The legally responsible 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 president.
lJ A I,orA, e f a Notary Public for the State of
County of Met k w h u/, do hereby certify that
-bk.
i11'�Ghfle 1 JC: SSP.� personally appeared before me this ty
day of i u rl C . a0 i S. and acknowledge the due execution of the
forgoing grassed swale maintenance requirements. Witness my hand and official seal,
SEAL
My commission expires h1
1 '
Form SW401- Grassed Swale O &M -Rev.4 Page 3 of 3