All persons discharging or depositing wastes into the public
sewers shall pay a sewer service charge proportional to the liquid
volume of waste so deposited, which charge shall be collected as a
sewer rent.
All persons discharging or depositing wastes with concentrations
in excess of the pollutant concentrations in normal sewage shall pay
a surcharge.
The total sewer service charge (which shall be called the "user
charge") is comprised of two parts, as follows:
UC(t) = UC(n) + UC(an)
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Where:
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|
|
UC(t)
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=
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Total user charge for POTW operation and maintenance
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UC(n)
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=
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User charge associated with normal sewage
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UC(an)
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=
|
User charge associated with abnormal sewage
|
UC(n)
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=
|
OM X (OQ/100) X (QIA/QA)
|
UC(an)
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=
|
OM
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{[OB/100 X (BIA-Bn)/BA] +
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|
|
|
[OS/100 X (SIA-Sn)/SA] +
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|
|
|
[OP/100 X (PIA-Pn)/PA] +
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|
|
|
[ONH/100 X (NHIA-NHn)/NHA] +
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|
|
|
[OTK/100 X (TKIA-TKn)/TKA]}
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Where:
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|
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OM
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=
|
Total annual POTW operation and maintenance costs
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OQ
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=
|
Percentage of OM attributable to flow (Q)
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OB
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=
|
Percentage of OM attributable to BOD5
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OS
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=
|
Percentage of OM attributable to suspended solids
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OP
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=
|
Percentage of OM attributable to total phosphorus
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ONH
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=
|
Percentage of OM attributable to ammonia
|
OTK
|
=
|
Percentage of OM attributable to total Kjeldahl nitrogen
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QIA
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=
|
Average daily flow rate (MGD) from discharger
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BIA
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=
|
Average daily BOD5 loading (LB/DAY) from discharger
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SIA
|
=
|
Average daily suspended solids loading (LB/DAY) from discharger
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PIA
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=
|
Average daily total phosphorus loading (LB/DAY) from discharger
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NHIA
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=
|
Average daily ammonia loading (LB N/DAY) from discharger
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TKIA
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=
|
Average daily total Kjeldahl nitrogen loading (LB N/DAY) from
discharger
|
QA
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=
|
Average daily flow rate (MGD) at the POTW treatment plant
|
BA
|
=
|
Average daily BOD5 loading (LB/DAY) at the POTW treatment plant
|
SA
|
=
|
Average daily suspended solids loading (LB/DAY) at the POTW
treatment plant
|
PA
|
=
|
Average daily total phosphorus loading (LB/DAY) at the POTW
treatment plant
|
NHA
|
=
|
Average daily total ammonia loading (LB N/DAY) at the POTW treatment
plant
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TKA
|
=
|
Average daily total Kjeldahl nitrogen loading (LB N/DAY) at
the POTW treatment plant
|
Bn
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=
|
BOD5 loading (LB/DAY) in discharge if it were normal sewage
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Sn
|
=
|
Suspended solids loading (LB/DAY) in discharge if it were normal
sewage
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Pn
|
=
|
Total phosphorus loading (LB/DAY) in discharge if it were normal
sewage
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NHn
|
=
|
Ammonia loading (LB N/DAY) in discharge if it were normal sewage
|
TKn
|
=
|
Total Kjeldahl nitrogen loading (LB N/DAY) in discharge if it
were normal sewage
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NOTES:
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1.
|
If any difference terms in the equation above is negative, then
that portion of the equation shall not be used; that is, the difference
shall be set to zero when it is negative.
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2.
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All averages are arithmetic averages determined from available
data during the billing period.
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The service area of the POTW may be segmented to assist in a
fair distribution of user charges, especially if there is a pump station
serving a segment.
[Amended 4-18-2017 by L.L. No. 4-2017]
A. The volume of flow to be used in computing sewer service charges
and abnormal sewage surcharges shall be based upon metered water consumption
as shown on the records of meter readings maintained by the Village
Water Department. In the event that a person discharging wastes into
the publicly owned treatment works (POTW) produces evidence to the
Director of Public Works, demonstrating that a substantial portion
of the total amount of metered water does not reach the POTW, then
the Director of Public Works shall either establish a percentage of
the total metered water to be used as a basis for such computations
or direct the installation of appropriate flow measuring (and totalizing)
devices to measure and record the actual amount of flow into the POTW.
The Director of Public Works shall determine which methodology shall
be applied. In the event that a person discharging wastes into the
POTW procures all or part of his water supply from unmetered sources,
the Director of Public Works shall either direct the installation
of water meters on the other sources of water supply or direct the
installation of appropriate flow measuring devices to measure and
record the actual amount of flow into the POTW. Any water meters and/or
flow measuring devices installed pursuant to this section shall be
of a type and design acceptable to the Director of Public Works and
shall be installed, maintained and periodically tested as required
by the Director of Public Works, at the owner's expense. All
such meters and/or flow measuring devices shall be subject to periodic
inspection, maintenance, testing and reading by the Director of Public
Works. A commercial or industrial operation discharging wastes into
the POTW may install a flow measuring device of a type, design, installation
and maintenance plan approved by the Director of Public Works as defined
herein, at the owner's expense.
B. Any commercial or industrial operation discharging wastewater in
the POTW which desires to be charged based upon actual wastewater
discharge shall install an automatic full-time flow measurement system.
Such automatic full-time flow measurement system must provide continuous
flow indication, recording, totalizing and a contact closure pulse
signal generating device (e.g., sampler pacing socket) to activate
wastewater samplers. Digital totalizers must have emergency backup
power and surge protection, and any totalizer reset buttons must be
removed, deactivated, or covered.
C. Design of flow measurement installations shall be performed by a
professional engineer licensed in the State of New York. Design, construction
drawings and installation shall be signed and stamped with the authorized
seal of the licensed professional engineer to indicate approval of
the design and methodology of installation.
D. Two sets of detailed construction drawings for any new or modified
discharge flow measurement system must be submitted for approval by
the Director of Public Works prior to any construction and /or installation.
These drawings must show relevant slopes, elevations and locations
of piping, types and locations of instrumentation, details of flow
measurement elements, estimated flow range (maximum, minimum, and
average), and details of upstream and downstream piping, structures,
and devices which could influence flow conditions. Manufacturer's
calculations, catalog cuts and data sheets must be included with construction
drawings for any manufactured equipment to be installed as part of
the flow measurement system. Complete rating data and calculations
shall be submitted for any engineered flow measurement device.
E. Either an open channel (flume, weir) or a closed-pipe (magnetic)
flow measurement system is acceptable, depending upon the type of
process being used by the customer. Magnetic flow meters are preferred
for industries that have difficulty maintaining open channel flow
measurement accuracy (e.g., textile finishers and food manufacturers).
Mechanical closed-pipe systems (i.e., propeller, turbine) may be accepted
in limited cases. Any flow measurement element that is adversely affected
by wastewater characteristics will be prohibited. Flow measurement
devices should be installed downstream of pretreatment facilities
and as close as possible to the point of connection with the public
sewer. Aboveground flow measurement installations may require a platform
for automatic samplers so that the top of the sampler will be higher
than the water level in the primary element. Because it is often difficult
to set automatic samplers for pressurized closed-pipe systems, the
Director of Public Works may require that a well-mixed side stream
be routed through an open channel device (e.g., a sample box). The
Director of Public Works may determine and direct that a specific
type of system is required
F. To function correctly, flumes and weirs must be properly installed
in accordance with dimensional specifications. Additionally, flumes
must be set level with smooth joints where the influent pipe meets
the manhole or vault channel. To ensure accuracy of an open channel
flow measurement system, the upstream channel must be designed to
prevent excessive velocity and turbulence, while the downstream channel
must be designed to prevent excessive submergence and backflow. Any
additional monitoring equipment (e.g., pH probe) must not adversely
affect hydraulics of the open channel element. All open channel installations
below grade must be located directly beneath the vault or manhole
access cover to facilitate inspections and field checks. All open
channel installations at or above grade must have a staff gauge for
accuracy checks.
G. Closed-pipe meters must be appropriate for the type of wastewater
and range of flow rates. Closed pipe systems must be designed and
constructed so as to assure that the flow is full at all times.
H. The Village will allow completely digital (i.e., paperless) flow
meter recorders as long as the discharger satisfies conditions of
data availability, accessibility and integrity. Specifically, a company
representative who is fully familiar with the operation of the digital
recorder must be available at all times during operating hours to
assist Village staff in accessing, retrieving and reviewing current
and historical flow data at the site. Furthermore, simple instructions
for recalling the flow data must be posted at or near the recorder.
The instructions must be protected from the weather (e.g., by lamination).
I. The existing digital flow meter recorder system must generate a secure
electronic file that cannot be modified. The discharger shall set
the data sampling frequency to one per minute. Sufficient memory shall
exist for a minimum of 60 days for the specified data sampling frequency.
All flow data generated and stored from any approved flow measurement
device must be retained and be accessible for at least four years.
J. The Director of Public Works shall be notified in writing when installation
of a flow measurement system is completed. New systems must be calibrated
after installation. A calibration report must also be prepared and
submitted with the written notification. The calibration must be a
full-flow hydraulic calibration conducted in accordance with the requirements
set forth and the manufacturer's specifications.
K. The manufacturer's or laboratory certified calibration curves
and/or a certificate of calibration must be submitted for any manufactured
flow-metering device used to calibrate the system. Accuracy of the
flow measurement system must be within 5% of actual flow at each flow
rate tested throughout the entire operating range (maximum, minimum,
and average flow rates). Where unusual flow rates exist, or where
a proposed flow measurement system departs from recognized published
standards, engineering calculations shall be submitted to support
proposed calibration data. Where required, certified calibration curves
or data must be submitted which show measured head or signal output
for a minimum of five flow rates over the design flow range.
L. All wastewater flow-measurement systems shall have such routine maintenance and periodic calibration checks in accordance with design specifications and/or manufacturer's recommendations. (See Subsection
N.) All flow data generated and stored from any approved flow-measurement device must be retained and be accessible for at least four years. Flow charts must be automatically or manually time and date stamped on a regular basis, preferably daily but no less than weekly. The recorder's chart speed must be no lower than 0.5 inch per hour for strip charts and seven days per cycle for circular charts. The flow meter's totalizer must be nonresettable and shall advance frequently enough to allow accuracy checks in the field (e.g., using a stopwatch). The totalizer shall have sufficient digits so that a full cycle is not completed in less than one year.
M. Sewer customers that have installed wastewater flow measurement systems
must keep accurate records of any cleaning or maintenance and must
regularly check accuracy and record totalizer readings. Those records
must be retained and be accessible for four years, and copies should
be regularly submitted to the Director of Public Works. The zero level
of the indicator and recorder should be checked each time the recorder
chart is changed to ensure that flows are measured and recorded correctly.
Totalizer readings must be taken and recorded at least twice per month.
N. At a minimum, all flow measurement systems used to obtain information
for examination by the Village must be calibrated annually. A detailed
summary of the calibration must be submitted as part of a calibration
report. The calibration procedure and method shall be approved by
a New York State registered professional engineer. The approval and
results of the calibration shall be reported and certified by a licensed
professional engineer. All calibration reports must be submitted to
the Director of Public Works.
O. All recorded data, maintenance and calibration records and reports
shall be made available to Village staff for inspection and review
upon request.
The billing period shall be monthly for industrial and nonindustrial
users.
The additional charges and fees associated with the operation
of the pretreatment program shall be assessed the user, and include:
A. Reimbursement of costs of setting up and operating the pretreatment
program;
C. Monitoring, inspections, and surveillance procedures;
D. Costs of equipment and supplies;
E. Reviewing accidental discharge procedures;
F. Construction inspections;
H. Application for consistent removal status as outlined in 40 CFR 403;
I. Other reasonable expenses to carry out the program to satisfy the
requirements of this chapter, the NYSDEC, and the federal government.
The charge for treatment and disposal of trucked or hauled waste
which has been introduced into the POTW shall be as established by
the Village Board. The manner of determining the volume dumped shall
be at the discretion of the Director of Public Works.
The Village may institute an equitable procedure for recovering
the costs of any capital improvements of those parts of the POTW which
collect, pump, treat, and dispose of industrial wastewaters from those
persons discharging such wastewaters into the POTW.
Provisions of Article
XI of this chapter relating to the collection of penalties shall apply to the collection of sewer service charges and abnormal sewage service surcharges, unless where otherwise provided by application of the Sewer Rent Law by the Village.
The POTW shall be operated on the basis of a fiscal year commencing
on the first day of June and ending on the 31st day of May.
The Village Board shall have the authority to impose impact
fees on new development, which development may:
A. Cause enlargement of the service area of the POTW;
B. Cause increased hydraulic and/or treatment demands on the POTW.