A. 
General prohibitions. No user shall introduce or cause to be introduced into the POTW any pollutant or wastewater that 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, wastestreams with a closed-cup flashpoint of less than 140° F. (60° C.) using the test methods specified in 40 CFR 261.21 or wastewater causing two readings on an explosion hazard meter at the point of discharge into the POTW, or at any point in the POTW, of more than 5% or any single reading over 10% of the lower explosive limit of the meter;
(2) 
Wastewater having a pH less than 5.0 or more than 12.5, or otherwise causing corrosive structural damage to the POTW or equipment;
(3) 
Solid or viscous substances in amounts, which, alone or in combination with other substances, will cause obstruction of the flow in the POTW resulting in Interference;
(4) 
Pollutants, including oxygen-demanding pollutants (BOD, 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 that will inhibit biological activity in the POTW resulting in interference, but in no case wastewater which causes the temperature at the introduction into the POTW to exceed 104° F. (40° C.);
(6) 
Petroleum oil, nonbiodegradable cutting oil, or products of mineral oil origin, in amounts that will cause interference or pass through;
(7) 
Pollutants that result in the presence of toxic gases, vapors, or fumes within the POTW in a quantity that may cause worker health and safety problems;
(8) 
Trucked or hauled pollutants, except at discharge points designated by the Township in accordance with § 274-85 of this Part 5, titled "Hauled wastewater;"
(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 POTW or any 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 POTW's effluent;
(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, significant quantities of condensate, deionized water, noncontact cooling water, and unpolluted water, unless specifically authorized by the Township.
(13) 
Biosolids, sludges, screenings, or other residues from the pretreatment of industrial wastes;
(14) 
Medical wastes, except as specifically authorized by the Township in a wastewater discharge permit;
(15) 
Wastewater causing, alone or in conjunction with other sources, the POTW's effluent to fail a toxicity test;
(16) 
Detergents, surface-active agents, or other substances which may cause excessive foaming in the POTW or its discharge;
(17) 
Fats, oils, or greases of animal or vegetable origin in concentrations greater than 200 mg/l;
(18) 
Any substance which is a hazardous waste under 40 CFR Part 261.
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.
Users must comply with the categorical pretreatment standards found at 40 CFR Chapter I, Subchapter N, Parts 405 through 471, which are hereby incorporated by reference.
A. 
Where a categorical pretreatment standard is expressed only in terms of either the mass or the concentration of a pollutant in wastewater, the Township may impose equivalent concentration or mass limits in accordance with Subsections D and E of this section.
B. 
When the limits in a categorical pretreatment standard are expressed only in terms of mass of pollutant per unit of production, the Township 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.
C. 
When wastewater subject to a categorical pretreatment standard is mixed with wastewater not regulated by the same standard, the Township shall impose an alternate limit using the combined wastestream formula in 40 CFR 403.6(e).
D. 
When a categorical pretreatment standard is expressed only in terms of pollutant concentrations, an industrial user may request that the City of Allentown convert the limits to equivalent mass limits. The determination to convert concentration limits to mass limits is within the discretion of the Township. The City may establish equivalent mass limits only if the industrial user meets all the conditions set forth in Subsection D(1)(a) through D(1)(e) of this section below.
(1) 
To be eligible for equivalent mass limits, the industrial user must:
(a) 
Employ, or demonstrate that it will employ, water conservation methods and technologies that substantially reduce water use during the term of its wastewater discharge permit;
(b) 
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;
(c) 
Provide sufficient information to establish the facility's actual average daily flow rate for all wastestreams, 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;
(d) 
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
(e) 
Have consistently complied with all applicable categorical pretreatment standards during the period prior to the industrial user's request for equivalent mass limits.
(2) 
An industrial user subject to equivalent mass limits must:
(a) 
Maintain and effectively operate control and treatment technologies adequate to achieve compliance with the equivalent mass limits;
(b) 
Continue to record the facility's flow rates through the use of a continuous effluent flow monitoring device;
(c) 
Continue to record the facility's production rates and notify the Township whenever production rates are expected to vary by more than 20% from its baseline production rates determined in Subsection D(1)(c) of this section. Upon notification of a revised production rate, the Township may reassess the equivalent mass limit and revise the limit as necessary to reflect changed conditions at the facility; and
(d) 
Continue to employ the same or comparable water conservation methods and technologies as those implemented pursuant to Subsection D(1)(a) of this section so long as the industrial user discharges under an equivalent mass limit.
(3) 
When developing equivalent mass limits, the Township:
(a) 
May 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 limit for the applicable categorical pretreatment standard and the appropriate unit conversion factor;
(b) 
Upon notification of a revised production rate, may reassess the equivalent mass limit and recalculate the limit as necessary to reflect changed conditions at the facility; and
(c) 
May retain the same equivalent mass limit in subsequent wastewater discharge 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 § 274-81, Dilution. The industrial user must also be in compliance with § 274-137, Bypass, regarding the prohibition of bypass.
E. 
The Township may convert the mass limits of the categorical pretreatment standards of 40 CFR Parts 414, 419, and 455 to concentration limits for purposes of calculating limitations applicable to individual industrial users. The conversion is at the discretion of the Township. {Note: When converting such limits to concentration limits, the Township will use the concentrations listed in the applicable subparts of 40 CFR Parts 414, 419, and 455 and document that dilution is not being substituted for treatment as prohibited by § 274-81 of this Part 5 [see 40 CFR 403.6(d)]. In addition, the Township will document how the equivalent limits were derived for any changes from concentration to mass limits, or vice versa, and make this information publicly available [see 40 CFR 403.6(c)(7)]}.
F. 
Once included in its permit, the industrial user must comply with the equivalent limitations developed in this § 274-77, National Categorical Pretreatment Standards, in lieu of the promulgated categorical standards from which the equivalent limitations were derived. [Note: See 40 CFR 403.6(c)(7).]
G. 
Many categorical pretreatment standards specify one 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. [Note: See 40 CFR 403.6(c)(8).]
H. 
Any industrial user operating under a permit incorporating equivalent mass or concentration limits calculated from a production-based standard shall notify the Township within two 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 City and the Township 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. [Note: See 40 CFR 403.6(c)(9).]
A. 
The Township is authorized to establish local limits pursuant to 40 CFR 403.5(c).
B. 
Limits for discharging pollutants which are of concern to the POTW will be made using headworks loading analyses which has been reviewed and approved by the approval authority. Allocations for discharging such pollutants will be made to each significant industrial user. Limits may be in the form of monthly average concentration, daily maximum concentration, or instantaneous maximum concentration. Limits will be contained in the wastewater discharge permits issued and will be applied at the point where the wastewater is discharged to the POTW unless otherwise specified in the permit issued. All concentrations for metallic substances are for "total" metal unless indicated otherwise. The Township may impose mass limitations in addition to, or in place of, the concentration-based limitations above.
C. 
The Township may develop best management practices (BMPs), by ordinance or in wastewater discharge permits, to implement local limits and the requirements of § 274-76, Prohibited discharge standards.
The Township grants the City, and the City reserves the right to establish, by ordinance or in wastewater discharge permits, more stringent standards or requirements on discharges to the POTW consistent with the purpose of this Part 5.
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 Township 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.