TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE B: AIR POLLUTION
CHAPTER II: ENVIRONMENTAL PROTECTION AGENCY
PART 283
GENERAL PROCEDURES FOR EMISSIONS TESTS AVERAGING
SUBPART A: INTRODUCTION
Section
283.110
Purpose
283.120
Applicability
283.130
Definitions
SUBPART B: PROCEDURES FOR AVERAGING OF TEST RESULTS
283.210
Criteria for Averaging Tests
283.220
Test Plan Requirements
283.230
Changes to the Test Plan
283.240
Averaging Procedure
283.250
Compliance Determination
AUTHORITY: Implementing and authorized by Section 4 of the Environmental
Protection Act [415 ILCS 5/4].
SOURCE:
Old Part repealed at 13 Ill. Reg. 9501, effective June 12, 1989; New
Part adopted at 24 Ill. Reg. 14428, effective September 11, 2000.
SUBPART A: INTRODUCTION
Section 283.110
Purpose
The purpose of this Part is to establish the general procedures and conditions for
emissions tests averaging.
Section 283.120
Applicability
For the purpose of determining the compliance of an emission unit with an applicable
limitation, standard, or permit conditions, unless otherwise specified by 35 Ill. Adm.
Code Subtitle B, the arithmetic average of at least three valid test runs may be used,
subject to the limitations and conditions contained in this Part. The emissions tests
averaging procedure set forth in this Part may not be used for determining the
compliance status of the following types of emission units:
a)
Emission units that are subject to the testing requirements set forth in
Section 111 of the Clean Air Act, 42 USC 7401, Section 112 of the
Clean Air Act, 42 USC 7402, or the regulations promulgated under
those statutes; or
b)
Emission units that are being tested for emissions generated by any of
the following types of waste: hazardous waste, as defined by Section
3.15 of the Illinois Environmental Protection Act [415 ILCS 5/3.15], or
municipal waste, as defined by Section 3.21 of the Illinois Environmental
Protection Act [415 ILCS 5/3.21].
Section 283.130
Definitions
Unless otherwise defined in this Section or unless a different meaning of a term is clear
from its context, the definitions of terms used in this Part shall have the meanings
specified by 35 Ill. Adm. Code 201.102 and 35 Ill. Adm. Code 211.
“Agency” means the Illinois Environmental Protection Agency.
“Continuous steady-state unit” means an emission unit that, as an
inherent result of its design or operation, produces a steady-state
emissions stream.
“Cyclic steady-state unit” means an emission unit that operates on a
batch basis and that exhibits uniform operating parameters and produces
similar emissions from batch to batch, and has a batch cycle time such
that it is practical to perform a single test run during one or more whole
batch cycles.
“Minor deviation” means a change to a test plan that does not affect the
stringency of the emission limitation or standard (i.e., no emission limit
or standard relaxation); and has no national significance (i.e., the change
will not affect the applicable regulation’s implementation for other
sources in the affected category); and is site-specific (the applicability of
the change is determined only for the source at issue). A minor
deviation includes, but is not limited to, the following: a modified
sampling traverse (the procedure of measuring gas velocity at specific
points across the cross sectional area of a stack for the purpose of
determining the gas velocity profile) or location to avoid interference
from an obstruction in the stack; increasing the sampling time or volume;
use of additional impingers for a high moisture situation; accepting
particulate emission results for a test run that was conducted with a
lower than specified temperature; substitution of a material in the
sampling train that has been demonstrated to be more inert for the
sampling matrix; and changes in recovery and analytical techniques such
as a change in quality control/quality assurance requirements needed to
adjust for analysis of a certain sample matrix.
“Qualifying unit” means an emission unit that during normal operating
conditions produces a consistent pattern of emissions.
“Valid test run” means a completed test run, conducted in accordance
with a test plan submitted to the Agency, as required under Section
283.220 of this Part, or a test plan modified in accordance with Section
283.230 of this Part.
SUBPART B: PROCEDURES FOR AVERAGING OF TEST RESULTS
Section 283.210
Criteria for Averaging Tests
Emissions tests results for an emission unit shall be averaged to determine compliance
with the applicable limitation, standard, or permit conditions, provided that all of the
following conditions are met:
a)
The emission unit is classified as a continuous steady-state unit, a cyclic
steady-state unit, or another qualifying unit;
b)
At least three valid test runs are conducted, subject, however, to the
provisions of Section 283.240(c) of this Part; and
c)
Each of the test runs to be averaged is performed according to the test
plan submitted to the Agency prior to the test, pursuant to the provisions
of Section 283.220 of this Part, or as may otherwise be modified and
approved, according to the provisions of Section 283.230 of this Part.
Section 283.220
Test Plan Requirements
a)
A test plan must be submitted to the Agency when an owner or operator
of an emission unit intends to average emissions tests results for that
unit.
b)
A test plan must be submitted to the Agency for review prior to
conducting any emissions test when any one of the following applies:
1)
The Agency makes a written request for a test plan;
2)
A non-standard test method or procedure is to be used;
3)
A source seeks to test at operating parameters that differ from the
maximum parameters specified in its operating permit;
4)
A source seeks to deviate from a prior test plan for that emission
unit; or
5)
A test plan for the emission unit is required to be submitted by an
Illinois Pollution Control Board Order, any court order, consent
decree, Compliance Commitment Agreement, or permit
provision.
c)
A test plan must specify:
1)
The purpose of the test;
2)
The operating parameters;
3)
The test methods; and
4)
Any other procedures that will be followed when conducting an
emissions test pursuant to the provisions of this Part.
d)
Notwithstanding subsections (a), (b), and (c) above, a test plan need not
be submitted under the following circumstances:
1)
Where the source intends to utilize a test plan previously
submitted to the Agency. However, the source must submit a
notice containing the following:
A)
The purpose of the test;
B)
Date the previously submitted test plan was submitted to
the Agency; and
C)
A statement that the source is relying on a previously
submitted test plan.
2)
Where the source intends to use a standard test method or
procedure. However, the source must submit a notice containing
the following:
A)
The purpose of the test; and
B)
The standard test method or procedure to be used.
e)
The Agency is not required to review and approve or disapprove a test
plan prior to the owner or operator of an emission unit conducting an
emissions test.
Section 283.230
Changes to the Test Plan
a)
The owner or operator of an emission unit, or an authorized
representative, may change the procedures, methods, or operating
parameters of the emissions test at the time of the emissions test,
provided that the change is a minor deviation as defined in Section
283.130 of this Part. The emission unit owner or operator shall ensure
that documentation of the change is submitted to the Agency along with
the test results.
b)
If the owner or operator of an emission unit elects to use the provisions
of subsection (a) of this Section, the following procedures shall apply,
depending on the relevant circumstances:
1)
If a representative of the Agency is on-site for the purpose of
witnessing the emissions test, the owner or operator of the
emission unit or an authorized representative may request
permission from the Agency’s representative to change the
procedures, methods, or operating parameters of the emissions
test as specified in the test plan, submitted pursuant to the
provisions of Section 283.220 of this Part, provided that the
change is a minor deviation, as defined in Section 283.130 of this
Part.
A)
If the Agency representative approves the minor
deviation, all test runs performed with this minor
deviation may not be deemed invalid test runs by the
Agency on the sole basis of the minor deviation.
B)
If the Agency representative disapproves the change to the
procedures, methods, or operating parameters of the
emissions test as specified in the test plan, then the owner
or operator of the emission unit or an authorized
representative may elect to perform the emissions test with
the change. However, the Agency may subsequently
disapprove the emissions test results if it finds that a valid
test run was not obtained as a result of the change.
2)
If an Agency representative is not on-site for the purpose of
witnessing the emissions test, the owner or operator of the
emission unit or an authorized representative may elect to change
the procedures, methods, or operating parameters of the
emissions test as specified in the test plan, provided the change is
a minor deviation, as defined in Section 283.130 of this Part.
However, the Agency may disapprove the emissions test results if
it finds that a valid test run was not obtained as a result of the
change.
Section 283.240
Averaging Procedure
The following procedure shall be used when averaging emissions tests results:
a)
The average of the emissions tests results shall be determined by the
arithmetic average of three valid test run results, as long as the test runs
are conducted in conformance with either the provisions of an approved
test plan or with a test plan that has been modified in accordance with
Section 283.230 of this Part.
b)
Notwithstanding subsection (a) of this Section, if the owner or operator
of an emission unit elects to perform more than three test runs, then the
average shall be calculated based upon the results of all valid test runs.
c)
Notwithstanding subsection (a), in the event that a sample is accidentally
lost or conditions occur in which one of the test runs must be
discontinued because of forced shutdown, failure of an irreplaceable
portion of the sample train, extreme meteorological conditions,
malfunction or other dissimilar or non-representative circumstances,
upon the owner’s or operator’s documentation of the existence of any of
the circumstances set forth in this subsection (c) and verification by the
Agency that the conditions existed, compliance may be determined by
using the arithmetic average of the test results of all remaining valid test
runs; however, a minimum of two valid test runs is required to
determine compliance.
Section 283.250
Compliance Determination
a)
An emission unit will be determined to be in compliance with the
applicable limitation, standard, or permit conditions when the average of
the test results is either at or below the emission limit, standard, or
permit conditions, and the test plan for the emission unit, submitted in
accordance with Section 283.220 of this Part or as modified in
accordance with Section 283.230 of this Part, has not been disapproved
by the Agency.
b)
If an owner or operator of an emission unit does not meet the criteria for
averaging under Section 283.240 of this Part, then each individual valid
test run shall be required to meet the applicable limitation, standard, or
permit conditions in order to demonstrate compliance.