SW3170402

Permit Number:
(to be provided by DWQ)
StormFilter 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 will be carefully managed to reduce the sediment load to the
StormFilter.
— The sedimentation chamber or forebay will be cleaned out whenever sediment depth exceeds
six inches.
The StormFilter system will be inspected quarterly. 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.
BMP element: Potential problem: How 1 will remediate the problem:
Entire BMP Trash/debris is present. Remove the trash debris.
Adjacent pavement (if
Sediment is present on the
Sweep or vacuum the sediment as soon as
applicable)
pavement surface.
possible.
Flow diversion structure
The structure is clogged.
Unclog the conveyance and dispose of any
sediment offsite.
The structure is damaged.
Make any necessary repairs or replace if
damage is too large for repair.
StormFilter Cartridges
Cartridges not performing as
Replace cartridges per manufacturer's
designed - see Contech I&M
recommendations.
document to determine if cartridge
maintenance is required.
Outlet device
Clogging has occurred.
Clean out the outlet device. Dispose of
the sediment offsite.
The outlet device is damaged
Repair or replace the outlet device.
Receiving water
Erosion or other signs of damage
Contact the NC Division of Water
have occurred at the outlet.
Quality 401 Oversight Unit at 919-733-
1786.

Permit Number:
(to be provided by DWQ)
All other operation and maintenance activities should be in accordance with Contech's StormFilter
Inspection and Maintenance Procedures document. Any problems that are found shall be repaired
immediately. I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above and have received and understand Contech's
StormFilter Inspection and Maintenance Procedures document. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name: Henn Storage Facilijy
BMP drainage area number:
Print name: 2=1PNWh %s#-ZAA �-dti7►Md�'i,✓t- L. L.�.
Title: Owner
Address: 1152 N. Broome Street Waxhaw, NC 28173
Phone:
Signature: 4m,% /-1vfjv kd+ L-44-
Date:
LLDate: 5 /� l -3O 177
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.
'
I, J&rk4S k1c,, Z -e— , a Notary Public for the State of [ VD �s+�✓� ^ �,,
County of Un+,v� , do hereby certify that '�� ~ L4 G ~ /U.+rA-.C«rl �•:
personally appeared before me this day of /�,,,,, , zsj:� and acknowledge the due
execution of the forgoing sand filter maintenance requirements. Witness my hand and official seal,
►`�•,�P��s ALLFN��E`
pVIDLIC,
.,G V•
'y0iN C4Ut4T(' `•
SEAL
My commission expires 3h 20 J