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.
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.
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.
