Current through Register Vol. 48, No. 9, September 27, 2024
(a) Each owner or operator subject to the
provisions of this subpart shall comply with the test methods and procedures
requirements provided in this section.
(b) When a closed-vent system is tested for
compliance with no detectable emissions, as required in 264.1033 (1) of this
subpart, the test shall comply with the following requirements:
(1) Monitoring shall comply with Reference
Method 21 in 40 C part 60.
(2) The
detection instrument shall meet the performance criteria of Reference Method
21.
(3) The instrument shall be
calibrated before use on each day of its use by the procedures specified in
Reference Method 21.
(4)
Calibration gases shall be:
(i) Zero air
(less than 10 ppm of hydrocarbon in air).
(ii) A mixture of methane or nhexane and air
at a concentration of approximately, but less than, 10,000 ppm methane or
nhexane.
(5) The
background level shall be determined as set forth in Reference Method
21.
(6) The instrument probe shall
be traversed around all potential leak interfaces as close to the interface as
possible as described in Reference Method 21.
(7) The arithmetic difference between the
maximum concentration indicated by the instrument and the background level is
compared with 500 ppm for determining compliance.
(c) Performance tests to determine compliance
with 264.1032(a) and with the total organic compound concentration limit of
264.1033(c) shall comply with the following:
(1) Performance tests to determine total
organic compound concentrations and mass flow rates entering and exiting
control devices shall be conducted and data reduced in accordance with the
following reference methods and calculation procedures:
(i) Method 2 in 40 C part 60 for velocity and
volumetric flow rate.
(ii) Method
18 in 40 C part 60 for organic content.
(iii) Each performance test shall consist of
three separate runs; each run conducted for at least 1 hour under the
conditions that exist when the hazardous waste management unit is operating at
the highest load or capacity level reasonably expected to occur. For the
purpose of determining total organic compound concentrations and mass flow
rates, the average of results of all runs shall apply. The average shall be
computed on a timeweighted basis.
(iv) Total organic mass flow rates shall be
determined by the following equation:
See Image
where:
EH=Total organic mass flow rate,
kg/h;
QSD=Volumetric flow rate of gases
entering or exiting control device, as determined by Method 2, dscm/h;
n=Number of organic compounds in the vent gas;
CI=Organic concentration in ppm, dry
basis, of compound i in the vent gas, as determined by Method 18;
MWI=Molecular weight of organic
compound i in the vent gas, kg/kgmol;
0.0416=Conversion factor for molar volume, kgmol/m3 (@ 293
K and 760 mm Hg);
106=Conversion from ppm, ppm1.
(v) The annual total organic emission rate
shall be determined by the following equation:
EA=(EH)(H)
where:
EA=Total organic mass emission rate,
kg/y;
EH=Total organic mass flow rate for
the process vent, kg/h;
H=Total annual hours of operations for the affected unit,
h.
(vi) Total organic
emissions from all affected process vents at the facility shall be determined
by summing the hourly total organic mass emission rates
(EH as determined in paragraph (c)(1)(iv) of this
section) and by summing the annual total organic mass emission rates
(EA, as determined in paragraph (c)(1)(v) of this
section) for all affected process vents at the facility.
(2) The owner or operator shall record such
process information as may be necessary to determine the conditions of the
performance tests. Operations during periods of startup, shutdown, and
malfunction shall not constitute representative conditions for the purpose of a
performance test.
(3) The owner or
operator of an affected facility shall provide, or cause to be provided,
performance testing facilities as follows:
(i)
Sampling ports adequate for the test methods specified in paragraph (c)(1) of
this section.
(ii) Safe sampling
platform(s).
(iii) Safe access to
sampling platform(s).
(iv)
Utilities for sampling and testing equipment.
(4) For the purpose of making compliance
determinations, the timeweighted average of the results of the three runs shall
apply. In the event that a sample is accidentally lost or conditions occur in
which one of the three runs must be discontinued because of forced shutdown,
failure of an irreplaceable portion of the sample train, extreme meteorological
conditions, or other circumstances beyond the owner or operator's control,
compliance may, upon the Department's approval, be determined using the average
of the results of the two other runs.
(d) To show that a process vent associated
with a hazardous waste distillation, fractionation, thinfilm evaporation,
solvent extraction, or air or steam stripping operation is not subject to the
requirements of this subpart, the owner or operator must make an initial
determination that the timeweighted, annual average total organic concentration
of the waste managed by the waste management unit is less than 10 ppmw using
one of the following two methods:
(1) Direct
measurement of the organic concentration of the waste using the following
procedures:
(i) The owner or operator must
take a minimum of four grab samples of waste for each waste stream managed in
the affected unit under process conditions expected to cause the maximum waste
organic concentration.
(ii) For
waste generated onsite, the grab samples must be collected at a point before
the waste is exposed to the atmosphere such as in an enclosed pipe or other
closed system that is used to transfer the waste after generation to the first
affected distillation, fractionation, thinfilm evaporation, solvent extraction,
or air or steam stripping operation. For waste generated offsite, the grab
samples must be collected at the inlet to the first waste management unit that
receives the waste provided the waste has been transferred to the facility in a
closed system such as a tank truck and the waste is not diluted or mixed with
other waste.
(iii) Each sample
shall be analyzed and the total organic concentration of the sample shall be
computed using Method 9060 or 8260 of SW-846 (incorporated by reference under
260.11).
(iv) The arithmetic mean
of the results of the analyses of the four samples shall apply for each waste
stream managed in the unit in determining the timeweighted, annual average
total organic concentration of the waste. The timeweighted average is to be
calculated using the annual quantity of each waste stream processed and the
mean organic concentration of each waste stream managed in the unit.
(2) Using knowledge of the waste
to determine that its total organic concentration is less than 10 ppmw.
Documentation of the waste determination is required. Examples of documentation
that shall be used to support a determination under this provision include
production process information documenting that no organic compounds are used,
information that the waste is generated by a process that is identical to a
process at the same or another facility that has previously been demonstrated
by direct measurement to generate a waste stream having a total organic content
less than 10 ppmw, or prior speciation analysis results on the same waste
stream where it can also be documented that no process changes have occurred
since that analysis that could affect the waste total organic
concentration.
(e) The
determination that distillation, fractionation, thinfilm evaporation, solvent
extraction, or air or steam stripping operations manage hazardous wastes with
timeweighted, annual average total organic concentrations less than 10 ppmw
shall be made as follows:
(1) By the effective
date that the facility becomes subject to the provisions of this subpart or by
the date when the waste is first managed in a waste management unit, whichever
is later, and
(2) For continuously
generated waste, annually, or
(3)
Whenever there is a change in the waste being managed or a change in the
process that generates or treats the waste.
(f) When an owner or operator and the
Department do not agree on whether a distillation, fractionation, thin-film
evaporation, solvent extraction, or air or steam stripping operation manages a
hazardous waste with organic concentrations of at least 10 ppmw based on
knowledge of the waste, the procedures in Method 8260 of SW-846 (incorporated
by reference under 260.11) may be used to resolve the dispute. (9/98)
