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 use charge.
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)
|
1Where:
|
|
|
|
UC(t)
|
=
|
total user charge for POTW operation and maintenance
|
|
UC(n)
|
=
|
User charge associated with normal sewage
|
|
UC(an)
|
=
|
User charge associated with abnormal sewage
|
|
UC(n)
|
=
|
OM X (OQ/100) X (QIA/QA)
|
|
UC(an)
|
=
|
OM {[OB/100 X (BIA-Bn)/BA] +
|
|
|
|
[OS/100 X (SIA-Sn)/SA] +
|
|
|
|
[OP/100 X (PIA-Pn)/PA] +
|
|
|
|
[ONH/100 X (NHIA-NHn)/NHA] +
|
|
|
|
[OTK/100 X (TKIA-TKn)[TKA]}
|
Where:
|
|
|
|
OM
|
=
|
total annual POTW operation and maintenance
costs
|
|
OQ
|
=
|
percentage of OM attributable to flow (Q)
|
|
OB
|
=
|
percentage of OM attributable to BOD5
|
|
OS
|
=
|
percentage of OM attributable to suspended solids
|
|
OP
|
=
|
percentage of OM attributable to total phosphorus
|
|
ONH
|
=
|
percentage of OM attributable to ammonia
|
|
OTK
|
=
|
percentage of OM attributable to total Kjeldahl
nitrogen
|
|
QIA
|
=
|
average daily flow rate (MGD) from discharger2
|
|
BIA
|
=
|
average daily BOD5 loading
(LB/DAY) from discharger
|
|
SIA
|
=
|
average daily suspended solids loading (LB/DAY)
from discharger
|
|
PIA
|
=
|
average daily total phosphorus loading (LB/DAY)
from discharger
|
|
NHIA
|
=
|
average daily ammonia loading (LB N/DAY) from
discharger
|
|
TKIA
|
=
|
average daily total Kjeldahl nitrogen loading
(LB N/DAY) from discharger
|
|
QA
|
=
|
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
|
|
TKA
|
=
|
average daily total Kjeldahl nitrogen loading
(LB N/DAY) at the POTW treatment plant
|
|
Bn
|
=
|
BOD5 loading (LB/DAY)
in discharge if it were normal sewage
|
|
Sn
|
=
|
suspended solids loading (LB/DAY) in discharge
if it were normal sewage
|
|
Pn
|
=
|
total phosphorus loading (LB/DAY) in discharge
if it were normal sewage
|
|
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
|
NOTES:
|
---|
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.
|
2 All averages are
arithmetic averages determined from available data during the billing
period.
|
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.
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 City Water Department. In the event that a person
discharging wastes into the POTW produces evidence to the Superintendent
demonstrating that a substantial portion of the total amount of metered
water does not reach the POTW, then the Superintendent 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. In the event that a person discharging
wastes into the POTW procures all or part of his/her water supply
from unmetered sources, the Superintendent 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 Superintendent and
shall be installed, maintained and periodically tested as required
by the Superintendent at the owner's expense. All such meters and/or
flow-measuring devices shall be subject to periodic inspection, testing
and reading by the Superintendent. Any person discharging wastes into
the POTW may install a flow-measuring device at his/her option, of
the type, design, installation and maintenance standards of the Superintendent,
at the owner's expense.
The billing period shall be quarterly for industrial
and nonindustrial users or monthly for users greater than 20,000 units,
or as otherwise agreed upon.
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 Part 2, 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 City Council. The manner of determining the volume
dumped shall be at the discretion of the Superintendent.
The City 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
XII of this chapter relating to the collection of penalties shall apply to the collection of sewer service charges and abnormal sewage service surcharges, unless otherwise provided by application of this Part
2 by the City.
The POTW shall be operated on the basis of a
fiscal year commencing on the first day of July and ending on the
30th day of June.
The City Council shall have the authority to
impose impact fees on new development, which development may cause:
A. Enlargement of the service area of the POTW.
B. Increased hydraulic and/or treatment demands on the
POTW.
Revenues derived from user charges and associated
penalties and impact fees shall be credited to a special fund. Moneys
in this fund shall be used exclusively for the following functions:
A. For the payment of the operation and maintenance,
including repair and replacement costs, of the City POTW.
B. For the discovery and correction of inflow and infiltration.
C. For the payment of interest on and the amortization
of or payment of indebtedness which has been or shall be incurred
for the construction or extension of the City POTW.
D. For the extension, enlargement, replacement of and/or
additions to the City POTW, including any necessary appurtenances.