APPENDICES
APPENDIX L. INDUSTRIAL PRETREATMENT ORDINANCE.
Sec. 8. Fees and charges.
8.1. Fees. The City may adopt fees which may
include:
(1) Fees for reimbursement of costs of setting up and
operating the Frederick City Pretreatment Program;
(2) Fees for
monitoring, inspection, and surveillance procedures;
(3) Fees for
reviewing accidental discharge procedures and
construction;
(4) Fees for permit applications and/or
permits;
(5) Fees for the treatment of excessive discharges of BOD5
and Solids; and
(6) Other fees as deemed necessary to carry out the
requirements contained herein. These fees relate solely to the matters covered
by this Ordinance and are separate from all other fees chargeable by the
City.
* Cost of contracted services are billed
directly.
8.2. Sewer user base charges. Sewer User
Charges for domestic and non-domestic wastewater generated within the City and
discharged into the POTW will be based upon water rental costs and, in the case
of Domestic and Commercial Users, actual metered water supplied, or, in the case
of Industrial Users, actual metered water supplied less an allowance for water
not returned to the City for processing through the POTW. Said allowance will be
determined at the discretion of the City by methods set forth in Section 3.8 and
will be described as part of the User’s Industrial Waste Discharge
Permit.
(1) In all cases where meters have been installed, the
rates of rental for the use of water shall be payable quarterly. Such meter
rates shall apply and take effect as soon as the meter shall have been
installed; provided that the flat rate shall continue in force until the meter
rate shall become effective.
(2) Sewer use rates for wastewater
treatment are payable in quarterly installments. Rates shall be determined by
Resolution of the Mayor and Board of Aldermen.
(3) Sewer User base
Charges for customers outside the City limits shall be two (2) times the City
rate per thousand gallons.
8.2.1. Characterization of industrial
wastes.
(1) The volume used of Industrial Waste for surcharges
purposes from Users obtaining all water from the City Water Authority will be
determined by a method which identifies and
quantifies:
(a) domestic usage, QD
(b) unpolluted
cooling-water discharged to a separate storm sewer or other outlet,
QC
(c) makeup water used to replace evaporative loss in
closed-cycle cooling system, QM
(d) water used as part of a
manufactured product, QP
(e) total water used,
QT
(f) the determined industrial waste flow,
Ql
(2) The determination for industrial waste flow for surcharge
purposes, Ql, shall be as follows:
Q1 = QT - (QD + QM + QP +
QC)
(3) The values for the various terms in the formula above will
be determined by direct metering or by calculation in a manner agreed upon by
the City and Industrial User, more specifically:
(a) The total
water used, QT shall be metered by the City.
(b) The water flow for
domestic usage, QD, may be determined by metering the flow if the piping at the
job site allows for separation of domestic water from process related water
usage, or, the value of QD may be calculated by multiplying the average number
of employees at the job site per day by 35 gallons per day. Another usage factor
may be used if the Industrial User can establish validity.
(c) The
value of QC, the unpolluted cooling water discharge flow, shall be determined by
metering the discharge with meters installed, maintained and calibrated at the
expense of the User and to the satisfaction of the City.
(d) The
value of QM, the makeup water for closed circuit cooling systems, shall be
determined by metering the water supply to the system with meters installed,
maintained and calibrated at the expense of the User and to the satisfaction of
the City.
(e) The volume of water used as part of a manufactured
product, QP, will be calculated by a means appropriate to the manufacturing
method or product accounting procedure and shall be approved by the
City.
Should the Industrial User wish not to account for water Used but
not discharged to the POTW i.e., QC, QM, and/or QP, these terms will be metered
to assure the value is zero when calculating the industrial wastewater
volume.
(4) Whenever a person using a private water supply
discharges non-domestic wastes to the City’s POTW, the charges for such
discharge shall be defined either in the contractual agreement with the City and
the User, if the User is outside the City’s jurisdictional limits or in a
discharge permit if the User is inside the City’s limits. Such person,
however, shall install at his expense a suitable meter or meters, as may be
required by the City to measure the total volume of water used in the industrial
plant; or shall install, at his expense, a meter on the sewer line leaving the
plant so as to measure the entire flow of waste discharged into the sewer
system.
No meter for the measurement either of the water or sewage shall
be installed, until a plan for such installation is submitted to the City or its
designated representative, and approved as satisfactory. All meters or other
measuring devices installed or required to be used under the provisions of this
Ordinance shall be tested, inspected, or repaired as required by the City. The
Owner of the property upon which such measuring device is installed shall be
responsible for its maintenance and safekeeping; and all repairs thereto shall
be made at the property Owner’s expense.
8.3. Industrial
waste surcharge.
8.3.1. Industrial waste surcharges.
There shall be additional charges for industrial wastes having concentrations of
BOD5 in excess of 300 mg/1 and suspended solids in excess of 250
mg/1. These charges shall be determined using the formula in Section
8.3.2.
8.3.2. Surcharge formula.
S = 0.00834 * Ql
(B0DI - 300) (TA) + (SSC - 250) (TB)
In order to determine the
additional charge for industrial wastes with strength greater than that of
domestic waste, the following formula shall be used:
Where:
S is
the semi-annual surcharge to be added to the normal sewer rent.
0.00834
is a constant to convert waste concentrations expressed in mg/1 to thousands of
pounds of waste.
Q1 is the semiannual industrial waste flow expressed in
million gallons and determined as per methods set out in Section
8.2.1.
BODI and SSI are the average concentrations of BOD5
and Suspended Solids in the industrial user’s waste stream expressed in
mg/1 for the billing period.
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