No user shall contribute or cause to be contributed, directly or indirectly, any pollutant or wastewater which will cause pass-through or interference with the operation or performance of the POTW. These general prohibitions apply to all such users of a POTW whether or not the user is subject to national categorical pretreatment standards or any other national, state, or local pretreatment standards or requirements. A user may not contribute the following substances to any POTW.
A. 
No user shall introduce or cause to be introduced into the POTW the following pollutants, substances, or wastewater:
(1) 
Any liquids, solids or gases which by reason of their nature or quantity are, or may be, sufficient either alone or by interaction with other substances to cause fire or explosion or be injurious in any way to the POTW or to the operation of the POTW. These substances include but are not limited to waste streams with a closed cup flashpoint of less than 140° F. (60° C.) using the test methods specified in 40 CFR 261.21. At no time, shall two successive readings on an explosion hazard meter, at the point of discharge into the system (or at any point in the system) be more than 5% nor any single reading over 10% of the lower explosive limit (LEL) of the meter. Prohibited materials include, but are not limited to, gasoline, kerosene, naphtha, benzene, toluene, xylene, ethers, alcohols, ketones, aldehydes, peroxides, chlorates, perchlorates, bromates, carbides, hydrides and sulfides and any other substances which the control authority, the states or approved authority has notified the user is a fire hazard or a hazard to the collection or treatment system.
(2) 
Solid or viscous substance substances which may cause obstruction to the flow in a sewer or other interference with the operation of the wastewater treatment facilities such as but not limited to: grease, garbage with particle greater than 1/2 inch in any dimension, animal guts or tissues, paunch manure, bones, hair, hides or fleshings, entrails, whole blood, feathers, ashes, cinders, sand, spent lime, stone or marble dust, metal, glass, straw, shavings, grass clippings, rags, spent grains, spent hops, wastepaper, wood, plastics, gas, tar, asphalt residues, residues from refining, or processing of fuel or lubricating oil, mud, or glass grinding or polishing wastes.
(3) 
Any wastewater having a pH less than 5.0, unless the POTW is specifically designed to accommodate such wastewater, or wastewater having any other corrosive property capable of causing damage or hazard to structures, equipment, and/or personnel of the POTW.
(4) 
Any wastewater containing toxic pollutants or pollutants which result in the presence of toxic gases, vapors, or fumes, in sufficient quantity, either singly or by interaction with other pollutants, to injure or interfere with any wastewater treatment process, or cause injury, worker health and safety problems constitute a hazard to humans or animals, create a toxic effect in the receiving waters of the POTW, or to exceed the limitation set forth in a categorical pretreatment standard. A toxic pollutant shall include but not be limited to any pollutant identified pursuant to Section 307(a) of the Act.
(5) 
Any noxious or malodorous liquids, gases, or solids which either singly or by interaction with other wastes are sufficient to create a public nuisance or hazard to life or are sufficient to prevent entry into the sewers for maintenance and repair.
(6) 
Any substance which may cause the POTW's effluent or any other product of the POTW such as residues, sludge, or scum, to be unsuitable for reclamation and reuse or to interfere with the reclamation process. In no case, shall a substance discharged to the POTW cause the POTW to be in noncompliance with sludge use or disposal criteria, guidelines, or regulations developed under Section 405 of the Act; any criteria, guidelines, or regulations affecting sludge use or disposal developed pursuant to the Solid Waste Disposal Act, the Clean Air Act, the Toxic Substances Control Act, or state criteria applicable to the sludge management method being used.
(7) 
Any substance which will cause the POTW to violate its NPDES and/or state disposal system permit or the receiving water quality standards.
(8) 
Any wastewater with objectionable color not removed in the treatment process, such as, but not limited to, dye wastes and vegetable tanning solutions.
(9) 
Any wastewater having a temperature which will inhibit biological activity in the POTW treatment plant resulting in pass-through or interference, but in no case wastewater with a temperature at the introduction into the POTW which exceeds 40° C. (104° F.) unless US EPA has approved alternate limits as requested by the POTW.
(10) 
Any pollutants, including oxygen demanding pollutants (BOD, etc.) released at a flow rate and/or pollutant concentration which a user knows or has reason to know will cause pass through or Interference to the POTW. In no case shall a slug load have a flow rate or contain concentration or quantities of pollutants that exceed for any time period longer than 15 minutes more than five times the average twenty-four-hour concentration, quantities, or flow during normal operation.
(11) 
Any wastewater containing any radioactive wastes or isotopes of such half-life or concentration as may exceed limits established by the Superintendent in compliance with applicable state or federal regulations.
(12) 
Any wastewater which causes a hazard to human life or creates a public nuisance.
(13) 
Petroleum oil, nonbiodegradable cutting oil, or products of mineral oil origin in amounts that will cause pass-through or interference of the POTW.
(14) 
Any trucked or hauled pollutants, excepts at discharge points designated by THTMA.
(15) 
Stormwater, surface water, groundwater, artesian well water, roof runoff, subsurface drainage, swimming pool drainage, condensate, deionized water, noncontact cooling water, and unpolluted wastewater, unless specifically authorized by THTMA.
(16) 
Sludges, screening, or other residues from the pretreatment of industrial wastes.
(17) 
Medical wastes, except as specifically authorized by THTMA in an individual wastewater discharge permit.
(18) 
Detergents, surface-active agents, or other substances that might cause excessive foaming in the POTW.
B. 
When THTMA determines that a user is contributing to the POTW any of the above-enumerated substances in such amounts as to cause pass-through or interference of the POTW, the control authority shall:
(1) 
Advise the user of the impact of the contribution on the POTW;
(2) 
Develop effluent limitations for such user to correct the problem of pass-through or interference of the POTW. The Authority may pursue an enforcement action, as outlined in Article VII, Enforcement, of this chapter, against the industrial user in the event that the user causes pass-through or interference.
Users must comply with the categorical pretreatment standards found at 40 CFR Chapter I, Subchapter N, Parts 405 to 471.
A. 
Where a categorical pretreatment standard is expressed only in terms of either the mass or the concentration of a pollutant in wastewater, THTMA may impose equivalent concentration or mass limits in accordance with § 67A-7E and F.
B. 
When the limits in a categorical pretreatment standard are expressed only in terms of mass of pollutant per unit of production, THTMA 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, THTMA shall impose an alternate limit in accordance with 40 CFR 403.6(e).
D. 
Modification of federal categorical pretreatment standards. A CIU may obtain a net/gross adjustment to a categorical pretreatment standard in accordance with the following subsections of this section.
(1) 
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 THTMA. 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 D(2) of this section are met.
(2) 
Criteria.
(a) 
Either:
[1] 
The applicable categorical pretreatment standards contained in 40 CFR Subchapter N specifically provide that they shall be applied on a net basis; or
[2] 
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.
(b) 
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.
(c) 
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.
(d) 
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. THTMA may waive this requirement if it finds that no environmental degradation will result.
E. 
When a categorical pretreatment standard is expressed only in terms of pollutant concentrations, an industrial user may request that THTMA convert the limits to equivalent mass limits. The determination to convert concentration limits to mass limits is within the discretion of the general manager. THTMA may establish equivalent mass limits only if the industrial user meets all the conditions set forth in § 67A-7E(1)(a) through (e) 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 individual 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 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;
(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 general manager whenever production rates are expected to vary by more than 20% from its baseline production rates determined in § 67A-7E(1)(c). Upon notification of a revised production rate, the general manager will 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 § 67A-7E(1)(a) so long as it discharges under an equivalent mass limit.
(3) 
When developing equivalent mass limits, the general manager:
(a) 
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;
(b) 
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
(c) 
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 § 67A-10. The industrial user must also be in compliance with § 67A-55 regarding the prohibition of bypass.
F. 
The general manager 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 general manager.
G. 
Once included in its permit, the industrial user must comply with the equivalent limitations developed in this § 67A-7 in lieu of the promulgated categorical standards from which the equivalent limitations were derived.
H. 
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.
I. 
Any industrial user operating under a permit incorporating equivalent mass-or-concentration limits calculated from a production-based standard shall notify the General Manager 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 general manager 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.
A. 
The general manager is authorized to establish local limits pursuant to 40 CFR 403.5.
B. 
The pollutant limits are established to protect against pass-through and interference. No person shall discharge wastewater containing in excess of the local limits. For a list of the current local limits please see the most recently passed pretreatment ordinance adopting the new limits. The limits apply to the point where the wastewater is discharged to the POTW. All concentrations for metallic substances are for total metal unless indicated otherwise. The general manager may impose mass limitations in addition to the concentration-based limitations.
C. 
The general manager may develop best management practices (BMPs), by ordinance or in individual wastewater discharge permits or general permits, to implement local limits and the requirement of §§ 67A-5 and 67A-6.
Hempfield Township reserves the right to establish by ordinance more stringent limitations or requirements on discharges to the wastewater disposal system if deemed necessary to comply with the objectives presented in § 67A-1 of this chapter.
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 the limitations contained in the federal categorical pretreatment standards, or in any other pollutant-specific limitation developed by Hempfield Township, THTMA or the state. Dilution is permitted only where expressly authorized by an applicable pretreatment standard or requirement. The general manager 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.
A. 
Each significant industrial user shall provide protection from accidental or slug discharges of prohibited materials or other substances regulated by this chapter. Facilities to prevent accidental or slug discharges of prohibited materials shall be provided and maintained at the owner or user's own cost and expense. Detailed plans showing facilities and a complete description of operating procedures implemented to provide this protection shall be submitted to THTMA prior to construction of the facility. All existing significant industrial users shall have completed the aforementioned plan as required by this chapter. No industrial user who commences contribution to the POTW after the effective date of this chapter shall be permitted to introduce pollutants into the system until accidental discharge procedures have been approved by THTMA. Review and approval of such plans and operating procedures shall not relieve the industrial user from the responsibility to modify the industrial user's facility as necessary to meet the requirements of this chapter.
B. 
A complete description of operating procedures must include, but not be limited to, the following:
(1) 
A listing of all stored chemical, including the type and nature of chemical, maximum quantity stored, and any safety procedures to be followed if an accidental discharge occurs:
(2) 
A description of discharge practices, including nonroutine batch discharges.
(3) 
A description of procedures to prevent adverse impact from accidental or slug discharges, including but not limited to inspection and maintenance of storage areas, handling and transfer or materials, loading and unloading operations, control of site runoff, employee training, building of containment structures or equipment for emergency response.
A. 
In the case of any discharge, including, but not limited to, accidental discharges, discharges of a nonroutine, episodic nature, a noncustomary batch discharge, a slug discharge or slug load that might cause potential problems for the POTW, the user shall immediately telephone and notify the general manager of the incident. This notification shall include the location of the discharge, type of waste, concentration, and volume, if known, and corrective actions taken by the user.
B. 
Within five days following such discharge, the user shall, unless waived by the general manager, submit a detailed written report describing the cause(s) of the discharge and the measures to be taken by the user to prevent similar future occurrences. Such notification shall not relieve the user of any expense, loss, damage, or other liability which might be incurred as a result of damage to person or property; nor shall such notification relieve the user of any fines, penalties, or other liability which may be imposed pursuant to this chapter.
C. 
A notice shall be permanently posted on the user's bulletin board or other prominent place advising employees who to call in the event of a discharge described in Subsection A, above. Employers shall ensure that all employees, who could cause such a discharge to occur, are advised of the emergency notification procedure.
D. 
Significant industrial users are required to notify the general manager immediately of any changes at its facility affecting the potential for a slug discharge.
A. 
Septic tank waste may be introduced into the POTW only at locations designated by the general manager, and at such times as are established by the general manager. Such waste shall not violate Article II of this chapter or any other requirements established by THTMA. The general manager may require septic tank waste haulers to obtain individual wastewater discharge permits or general permits.
B. 
The general manager may require haulers of industrial waste to obtain individual wastewater discharge permits or general permits. The general manager may require generators of hauled industrial waste to obtain individual wastewater discharge permits or general permits. The general manager also may prohibit the disposal of hauled industrial waste. The discharge of hauled industrial waste is subject to all other requirements of this chapter.
C. 
Industrial waste haulers may discharge loads only at locations designated by the general manager. No load may be discharged without prior consent of the general manager. The general manager may collect samples of each hauled load to ensure compliance with applicable standards. The general manager may require the industrial waste hauler to provide a waste analysis of any load prior to discharge.
D. 
Industrial waste haulers must provide a waste-tracking form for every load. This form shall include, at a minimum, the name and address of the industrial waste hauler, permit number, truck identification, names and addresses of sources of waste, and volume and characteristics of waste. The form shall identify the type of industry, known or suspected waste constituents, and whether any wastes are RCRA hazardous wastes.