[Ord. No. 1244, 12-7-2015; Ord. No. 1333, 12-19-2022]
A.
General Prohibitions. No user shall introduce or cause to be introduced
into the POTW any pollutant or wastewater which causes pass-through
or interference. These general prohibitions apply to all users of
the POTW whether or not they are subject to categorical pretreatment
standards or any other national, State, or local pretreatment standards
or requirements.
B.
Specific Prohibitions. No user shall introduce or cause to be introduced
into the POTW the following pollutants, substances, or wastewater:
1.
Pollutants which create a fire or explosive hazard in the POTW,
including, but not limited to, waste streams with a closed-cup flash
point of less than one hundred forty degrees Fahrenheit (140°
F.) [sixty degrees Celsius (60° C.)] using the test methods specified
in 40 CFR 261.21;
2.
Wastewater having a pH less than five point zero (5.0) or more
than ten point zero (10.0) or otherwise causing corrosive structural
damage to the POTW or equipment;
3.
Solid or viscous substances in amounts which will cause obstruction
of the flow in the POTW resulting in interference but in no case solids
greater than three (3) inches or seven (7) centimeters in any dimension;
4.
Pollutants, including oxygen-demanding pollutants (BOD, COD,
etc.), released in a discharge at a flow rate and/or pollutant concentration
which, either singly or by interaction with other pollutants, will
cause interference with the POTW;
5.
Wastewater having a temperature greater than one hundred fifty
degrees Fahrenheit (150° F.) [sixty-five degrees Celsius (65°
C.)], or which will inhibit biological activity in the treatment plant
resulting in interference, but in no case wastewater which causes
the temperature at the introduction into the treatment plant to exceed
one hundred four degrees Fahrenheit (104° F.) [forty degrees Celsius
(40° C.)];
6.
Petroleum oil, non-biodegradable cutting oil, or products of
mineral oil origin, in amounts that will cause interference or pass-through;
7.
Pollutants which result in the presence of toxic gases, vapors,
or fumes within the POTW in a quantity that may cause acute worker
health and safety problems;
8.
Trucked or hauled pollutants, except at discharge points designated by the Program Administrator in accordance with Section 711.140 of this Chapter;
9.
Noxious or malodorous liquids, gases, solids, or other wastewater
which, either singly or by interaction with other wastes, are sufficient
to create a public nuisance or a hazard to life, or to prevent entry
into the sewers for maintenance or repair;
10.
Wastewater which imparts color which cannot be removed by the
treatment process, such as, but not limited to, dye wastes and vegetable
tanning solutions, which consequently imparts color to the treatment
plant's effluent, thereby violating the City's NPDES permit;
11.
Wastewater containing any radioactive wastes or isotopes except
in compliance with applicable State or Federal regulations;
12.
Stormwater, surface water, groundwater, artesian well water,
roof runoff, subsurface drainage, swimming pool drainage, condensate,
deionized water, non-contact cooling water, and unpolluted wastewater,
unless specifically authorized by the Program Administrator;
13.
Sludges, screenings, or other residues from the pretreatment
of industrial wastes;
14.
Medical wastes, except as specifically authorized by the Program
Administrator in an individual wastewater discharge permit;
15.
Wastewater causing, alone or in conjunction with other sources,
the treatment plant's effluent to fail toxicity test;
16.
Detergents, surface-active agents, or other substances which
that might cause excessive foaming in the POTW.
C.
Pollutants, substances, or wastewater prohibited by this Section
shall not be processed or stored in such a manner that they could
be discharged to the POTW.
D.
Any waste discharges containing the following pollutants to such
a degree that the max daily total mass loading from all SIU's
exceed the quantity specified below is prohibited. The Program Administrator
will allocate the permit limitations in pounds per day for all users
that meet the definition of SIU. At the discretion of the Program
Administrator (for example, for facilities without flow monitoring),
equivalent maximum daily pollutant concentrations may be imposed.
All metallic pollutants are for total metals unless otherwise specified
and shall be allocated as daily maximum unless otherwise required
by the Program Administrator.
E.
The Table of Masses is as defined in Exhibit "A": Table of Allowable
Industrial Mass, held on file in the City offices.
F.
Discharge of hazardous waste materials into the Municipal Sewer System
is strictly prohibited.
[Ord. No. 1244, 12-7-2015; Ord. No. 1333, 12-19-2022]
A.
Users must comply with the categorical pretreatment standards found
at 40 CFR 405 through 471.
1.
Where a categorical pretreatment standard is expressed only in terms of either the mass or the concentration of a pollutant in wastewater, the Program Administrator may impose equivalent concentration or mass limits in accordance with Section 711.060(A)(4) and (5).
2.
When the limits in a categorical pretreatment standard are expressed
only in terms of mass of pollutant per unit of production, the Program
Administrator may convert the limits to equivalent limitations expressed
either as mass of pollutant discharged per day or effluent concentration
for purposes of calculating effluent limitations applicable to individual
industrial users.
3.
When wastewater subject to a categorical pretreatment standard
is mixed with wastewater not regulated by the same standard, the Program
Administrator shall impose an alternate limit in accordance with 40
CFR 403.6(e).
4.
A CIU may obtain a net/gross adjustment to a categorical pretreatment
standard in accordance with the following Subsections of this Section.
a.
Categorical pretreatment standards may be adjusted to reflect the presence of pollutants in the industrial user's intake water in accordance with this Section. Any industrial user wishing to obtain credit for intake pollutants must make application to the City of Portageville. Upon request of the industrial user, the applicable standard will be calculated on a "net" basis (i.e., adjusted to reflect credit for pollutants in the intake water) if the requirements of Subsection (A)(2) of this Section are met.
b.
Criteria.
(1)
Either:
(a)
The applicable categorical pretreatment standards contained
in 40 CFR, Subchapter N specifically provide that they shall be applied
on a net basis; or
(b)
The industrial user demonstrates that the control system it
proposes or uses to meet applicable categorical pretreatment standards
would, if properly installed and operated, meet the standards in the
absence of pollutants in the intake waters.
(2)
Credit for generic pollutants such as biochemical
oxygen demand (BOD), total suspended solids (TSS), and oil and grease
should not be granted unless the industrial user demonstrates that
the constituents of the generic measure in the user's effluent
are substantially similar to the constituents of the generic measure
in the intake water or unless appropriate additional limits are placed
on process water pollutants either at the outfall or elsewhere.
(3)
Credit shall be granted only to the extent necessary
to meet the applicable categorical pretreatment standard(s), up to
a maximum value equal to the influent value. Additional monitoring
may be necessary to determine eligibility for credits and compliance
with standard(s) adjusted under this Section.
(4)
Credit shall be granted only if the user demonstrates
that the intake water is drawn from the same body of water as that
into which the POTW discharges. The City of Portageville may waive
this requirement if it finds that no environmental degradation will
result.
5.
When a categorical pretreatment standard is expressed only in terms of pollutant concentrations, an industrial user may request that the City convert the limits to equivalent mass limits. The determination to convert concentration limits to mass limits is within the discretion of the Program Administrator. The City may establish equivalent mass limits only if the industrial user meets all the conditions set forth in Section 711.060(A)(5)(a)(1) through (5) below.
a.
To be eligible for equivalent mass limits, the industrial user
must:
(1)
Employ, or demonstrate that it will employ, water
conservation methods and technologies that substantially reduce water
use during the term of its individual wastewater discharge permit;
(2)
Currently use control and treatment technologies
adequate to achieve compliance with the applicable categorical pretreatment
standard, and not have used dilution as a substitute for treatment;
(3)
Provide sufficient information to establish the
facility's actual average daily flow rate for all waste streams,
based on data from a continuous effluent flow monitoring device, as
well as the facility's long-term average production rate. Both
the actual average daily flow rate and the long-term average production
rate must be representative of current operating conditions;
(4)
Not have daily flow rates, production, levels,
or pollutant levels that vary so significantly that equivalent mass
limits are not appropriate to control the discharge; and
(5)
Have consistently complied with all applicable
categorical pretreatment standards during the period prior to the
industrial user's request for equivalent mass limits.
b.
An industrial user subject to equivalent mass limits must:
(1)
Maintain and effectively operate control and treatment
technologies adequate to achieve compliance with the equivalent mass
limits;
(2)
Continue to record the facility's flow rates
through the use of a continuous effluent flow monitoring device;
(3)
Continue to record the facility's production rates and notify the Program Administrator whenever production rates are expected to vary by more than twenty percent (20%) from its baseline production rates determined in Subsection (A)(5)(a)(3) of this Section. Upon notification of a revised production rate, the Program Administrator will reassess the equivalent mass limit and revise the limit as necessary to reflect changed conditions at the facility; and
(4)
Continue to employ the same or comparable water conservation methods and technologies as those implemented pursuant to Subsection (A)(5)(a)(1) of this Section so long as it discharges under an equivalent mass limit.
c.
When developing equivalent mass limits, the Program Administrator:
(1)
Will calculate the equivalent mass limit by multiplying
the actual average daily flow rate of the regulated process(es) of
the industrial user by the concentration-based daily maximum and monthly
average standard for the applicable categorical pretreatment standard
and the appropriate unit conversion factor;
(2)
Upon notification of a revised production rate,
will reassess the equivalent mass limit and recalculate the limit
as necessary to reflect changed conditions at the facility; and
(3)
May retain the same equivalent mass limit in subsequent individual wastewater discharger permit terms if the industrial user's actual average daily flow rate was reduced solely as a result of the implementation of water conservation methods and technologies, and the actual average daily flow rates used in the original calculation of the equivalent mass limit were not based on the use of dilution as a substitute for treatment pursuant to Section 711.100. The industrial user must also be in compliance with Section 711.660 regarding the prohibition of bypass.
6.
The Program Administrator may convert the mass limits of the
categorical pretreatment standards of 40 CFR 414, 40 CFR 419, and
40 CFR 455 to concentration limits for purposes of calculating limitations
applicable to individual industrial users. The conversion is at the
discretion of the Program Administrator.
7.
Once included in its permit, the industrial user must comply with the equivalent limitations developed in this Section 711.060 in lieu of the promulgated categorical standards from which the equivalent limitations were derived.
8.
Many categorical pretreatment standards specify one (1) limit
for calculating maximum daily discharge limitations and a second limit
for calculating maximum monthly average, or four-day average, limitations.
Where such standards are being applied, the same production or flow
figure shall be used in calculating both the average and the maximum
equivalent limitation.
9.
Any industrial user operating under a permit incorporating equivalent
mass or concentration limits calculated from a production-based standard
shall notify the Program Administrator within two (2) business days
after the user has a reasonable basis to know that the production
level will significantly change within the next calendar month. Any
user not notifying the Program Administrator of such anticipated change
will be required to meet the mass or concentration limits in its permit
that were based on the original estimate of the long term average
production rate.
[Ord. No. 1244, 12-7-2015; Ord. No. 1333, 12-19-2022]
Users must comply with Missouri's General Pretreatment
Regulation codified at 10 CSR 20-6.100.
[Ord. No. 1244, 12-7-2015; Ord. No. 1333, 12-19-2022]
A.
The Program Administrator is authorized to establish local limits
pursuant to 40 CFR 403.5(c).
B.
The Program Administrator is authorized to establish local limits pursuant to 40 CFR 403.5(c); the City's local limits are incorporated in Section 711.050(D) as prohibited mass limits/maximum allowable industrial loads (MAILs) to protect against interference and pass through which will be distributed at the discretion of the Program Administrator via the pretreatment program permits to each significant industrial user as necessary as referenced in Section 711.050(D).
[Ord. No. 1244, 12-7-2015; Ord. No. 1333, 12-19-2022]
The City reserves the right to establish, by ordinance or in
individual wastewater discharge permits, more stringent standards
or requirements on discharges to the POTW consistent with the purpose
of this Chapter.
[Ord. No. 1244, 12-7-2015; Ord. No. 1333, 12-19-2022]
No user shall ever increase the use of process water, or in
any way attempt to dilute a discharge, as a partial or complete substitute
for adequate treatment to achieve compliance with a discharge limitation
unless expressly authorized by an applicable pretreatment standard
or requirement; the Superintendent may impose mass limitations on
users who are using dilution to meet applicable pretreatment standards
or requirements, or in other cases when the imposition of mass limitations
is appropriate.
