SW8960609_COMPLIANCE_19960710

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO. SW "4vD&6q
DOC TYPE f ❑ CURRENT PERMIT
❑ ' APPROVED PLANS
❑ HISTORICAL FILE
COMPLIANCE EVALUATION INSPECTION
DOC DATE
YYYYMMDD

POND MAINTENANCE REQLMkO FLATS
3 C? CPCjCoO9
Project Name: ODMPAN pmject No. 39
Responsible Party: STEPNC_N L_.. WHEELE55 Phone No. 39a-oo5t
Address:, QP CP b ID - W i O P M 1 LJ, WAY
I. Monthly, or after every runoff producing rainfall event, whichever comes first:
A. Inspect the trash rack; remove accumulated debris, repair/replace if it is not functioning.
B. Inspect and clear the orifice of any obstructions. If a pump is used as the drawdown
mechanism, pump operation will be checked. A log of test runs of the pump will be kept
on site and made available to DEM personnel upon request.
C, Inspect the pond side slopes and grassed inlet swales; remove trash, and repair eroded
areas before the next rainfall event.
D. If the pond is operated with a vegetated filter, the filter will be checked for sediment
accumulation, trash accumulation, erosion and proper operation of the flow spreader
mechanism, Repairs/cleaning will be done as necessary:
II. Quarterly:
A. Inspect the collection system (ie. catch basins, piping, grassed swales) for proper
functioning, Accumulated trash will be cleared from basin grates, basin bottoms, and
piping will be checked for obstructions and cleared as required.
B. Pond inlet pipes will be checked for undercutting, riprap or other energy dissipation
structures will be replaced, and broken pipes will be repaired.
M. Semi-annually:
A. Accumulated sediment from the bottom of the outlet structure will be removed.
B. The pond depth will be checked at various points. If depth is reduced to 75 % of original
design depth or 3 feet whichever is greater, sediment will be removed to at least the
original design depth.
C. Grassed swales, including the vegetated filter if applicable, will be reseeded twice a year
as necessary.
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POND MAINTENANCE REQMUENIrLENTS
PAGE 2
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IV. General:
A. Mowing of the side slopes will be accomplished according to the season. Maximum grass
height will be 6".
B. Cattails are encouraged along the pond perimeter, however they will be removed when they
cover more than 1/2 the surface area of the pond.
C. The orifice/pump is designed to draw down the pond in 2-5 days. If drawdown is not
accomplished in that time, the system will be checked for clogging. The source of the
clogging will be found and eliminated.
D. All components of the detention pond system will be kept in good working order. Repair
or replacement components will meet the original design specifications as per the approved
stormwater plan.
V. Special Requirements:
I, SkAL L • U%fje C SS ' ' _, hereby acknowledge that I am the financiallyresponsible paity for maintenance of this detention pond. I will perform the maintenance as outlined
above, as part of the Certification of Compliance with Stormwater Regulations receivedd for this project.
Signature:of
Date: t�-C 4&
ii_e t�la ��J —,a Notary Public for the State of
County of _ —'do hereby certify that 1 v Q
personally a peared before me this / day of -LL gr e , 19�(,,, and acknowledge the
due execution of the foregoing instrument. Witness m' hand and official sea],
SEAL
My commission expires // - J : 9/,
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