Current through Register Vol. 48, No. 38, September 20, 2024
a) Each
remanufacturer or other person that stores or treats the hazardous secondary
material subject to the provisions of this Subpart AA must comply with the test
methods and procedural requirements provided in this Section.
b) When a closed-vent system is tested for
compliance with no detectable emissions, as required in Section
721.933(l)
of this Subpart AA, the test must comply with the following requirements:
1) Monitoring must comply with Reference
Method 21 (Determination of Volatile Organic Compound Leaks) in appendix A to
40 CFR 60 (Test Methods), incorporated by reference in 35 Ill. Adm. Code
720.111.
2) The detection instrument must meet the
performance criteria of Reference Method 21.
3) The instrument must be calibrated before
use on each day of its use by the procedures specified in Reference Method
21.
4) Calibration gases must be:
A) Zero air (less than 10 ppm of hydrocarbon
in air).
B) A mixture of methane or
n-hexane and air at a concentration of approximately, but less than, 10,000 ppm
methane or n-hexane.
5)
The background level must be determined as set forth in Reference Method
21.
6) The instrument probe must 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 Section
721.932(a)
and with the total organic compound concentration limit of Section
721.933(c)
must comply with the following:
1)
Performance tests to determine total organic compound concentrations and mass
flow rates entering and exiting control devices must be conducted and data
reduced in accordance with the following reference methods and calculation
procedures:
A) Reference Method 2
(Determination of Stack Gas Velocity and Volumetric Flow Rate (Type S Pitot
Tube)) in appendix A to 40 CFR 60 (Test Methods), incorporated by reference in
35 Ill. Adm. Code
720.111 for velocity
and volumetric flow rate.
B)
Reference Method 18 (Measurement of Gaseous Organic Compound Emissions by Gas
Chromatography) or Reference Method 25A (Determination of Total Gaseous Organic
Concentration Using a Flame Ionization Analyzer) in appendix A to 40 CFR 60
(Test Methods), incorporated by reference in 35 Ill. Adm. Code 720.111, for
organic content. If Reference Method 25A is used, the organic HAP used as the
calibration gas must be the single organic HAP representing the largest percent
by volume of the emissions. The use of Reference Method 25A is acceptable if
the response from the high-level calibration gas is at least 20 times the
standard deviation of the response from the zero calibration gas when the
instrument is zeroed on the most sensitive scale.
C) Each performance test must consist of
three separate runs; each run must be conducted for at least one hour under the
conditions that exist when the hazardous secondary material 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 must apply. The average must be
computed on a time-weighted basis.
D) Total organic mass flow rates must be
determined by the following equation:
i) For
sources utilizing Reference Method 18.
Click here to
view image
Where:
|
Eh
|
=
|
Total organic mass flow rate, kg/h
|
|
Q2sd
|
=
|
Volumetric flow rate of gases entering or exiting
control device, as determined by Reference 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 Reference Method 18
|
|
MWi
|
=
|
Molecular weight of organic compound i in the vent
gas, kg/kg-mol
|
|
0.0416
|
=
|
Conversion factor for molar volume,
kg-mol/m3 (@293 K and 760 mm Hg)
|
|
10-6
|
=
|
Conversion from ppm
|
ii)
For sources utilizing Reference Method 25A.
Eh=
(Q)(C)(MW)(0.0416)(10-6)
Where:
|
Eh
|
=
|
Total organic mass flow rate, kg/h
|
|
Q
|
=
|
Volumetric flow rate of gases entering or exiting
control device, as determined by Reference Method 2, dscm/h
|
|
C
|
=
|
Organic concentration in ppm, dry basis, as
determined by Reference Method 25A
|
|
MW
|
=
|
Molecular weight of propane, 44
|
|
0.0416
|
=
|
Conversion factor for molar volume,
kg-mol/m3 (@293 K and 760 mm Hg)
|
|
10-6
|
=
|
Conversion from ppm
|
E) The annual total organic emission rate
must 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/y
|
F)
Total organic emissions from all affected process vents at the facility must be
determined by summing the hourly total organic mass emission rates
(Eh, as determined in subsection (c)(1)(D)) and by
summing the annual total organic mass emission rates
(EA, as determined in subsection (c)(1)(E)) for all
affected process vents at the facility.
2) The remanufacturer or other person that
stores or treats the hazardous secondary material must record process
information as necessary to determine the conditions of the performance tests.
Operations during periods of startup, shutdown, and malfunction must not
constitute representative conditions for the purpose of a performance
test.
3) The remanufacturer or
other person that stores or treats the hazardous secondary material at an
affected facility must provide, or cause to be provided, performance testing
facilities, as follows:
A) Sampling ports
adequate for the test methods specified in subsection (c)(1).
B) Safe sampling platforms.
C) Safe access to sampling
platforms.
D) Utilities for
sampling and testing equipment.
4) For the purpose of making compliance
determinations, the time-weighted average of the results of the three runs must
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 control of the remanufacturer or
other person that stores or treats the hazardous secondary material, the Agency
may approve compliance determination using the average of the results of the
two other runs. The Agency must state any approval or disapproval of a
compliance determination in writing to the remanufacturer or other person that
stores or treats the hazardous secondary material.
d) To show that a process vent associated
with a hazardous secondary material distillation, fractionation, thin-film
evaporation, solvent extraction, or air or steam stripping operation is not
subject to the requirements of this Subpart AA, the remanufacturer or other
person that stores or treats the hazardous secondary material must make an
initial determination that the time-weighted, annual average total organic
concentration of the material managed by the hazardous secondary material
management unit is less than 10 ppmw using one of the following two methods:
1) Direct measurement of the organic
concentration of the material using the following procedures:
A) The remanufacturer or other person that
stores or treats the hazardous secondary material must take a minimum of four
grab samples of material for each material stream managed in the affected unit
under process conditions expected to cause the maximum material organic
concentration.
B) For material
generated onsite, the grab samples must be collected at a point before the
material is exposed to the atmosphere such as in an enclosed pipe or other
closed system that is used to transfer the material after generation to the
first affected distillation, fractionation, thin-film evaporation, solvent
extraction, or air or steam stripping operation. For material generated
offsite, the grab samples must be collected at the inlet to the first material
management unit that receives the material provided the material has been
transferred to the facility in a closed system such as a tank truck and the
material is not diluted or mixed with other material.
C) Each sample must be analyzed and the total
organic concentration of the sample must be computed using Method 9060A of
"Test Methods for Evaluating Solid Waste, Physical/Chemical Methods", EPA
Publication SW-846, incorporated by reference in 35 Ill. Adm. Code 720.111, or
analyzed for its individual organic constituents.
D) The arithmetic mean of the results of the
analyses of the four samples must apply for each material stream managed in the
unit in determining the time-weighted, annual average total organic
concentration of the material. The time-weighted average is to be calculated
using the annual quantity of each material stream processed and the mean
organic concentration of each material stream managed in the unit.
2) Using knowledge of the material
to determine that its total organic concentration is less than 10 ppmw.
Documentation of the material determination is required. Examples of
documentation that must be used to support a determination under this provision
include production process information documenting that no organic compounds
are used, information that the material 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 material stream having a total
organic content less than 10 ppmw, or prior speciation analysis results on the
same material stream where it can also be documented that no process changes
have occurred since that analysis that could affect the material total organic
concentration.
e) The
determination that distillation, fractionation, thin-film evaporation, solvent
extraction, or air or steam stripping operations manage hazardous secondary
materials with time-weighted, annual average total organic concentrations less
than 10 ppmw must be made as follows:
1) By
the effective date that the facility becomes subject to the provisions of this
Subpart AA or by the date when the material is first managed in a hazardous
secondary material management unit, whichever is later; and
2) For continuously generated material,
annually; or
3) Whenever there is a
change in the material being managed or a change in the process that generates
or treats the material.
f) When a remanufacturer or other person that
stores or treats the hazardous secondary material and the Agency do not agree
on whether a distillation, fractionation, thin-film evaporation, solvent
extraction, or air or steam stripping operation manages a hazardous secondary
material with organic concentrations of at least 10 ppmw based on knowledge of
the material, the dispute may be resolved by using direct measurement, as
specified at subsection (d)(1). The Agency must state any disagreement in
writing to the remanufacturer or other person that stores or treats the
hazardous secondary material.
