Section 203.1700
Recordkeeping and Reporting Requirements for Certain Projects at Major
Stationary Sources in Nonattainment Areas
Except as otherwise provided in subsection (f), the
provisions of this Section apply with respect to any regulated NSR pollutant
emitted from projects involving existing emissions unit or units at a major
stationary source in a nonattainment area (other than projects at a source with
a PAL) in circumstances where there is a reasonable possibility, within the
meaning of subsection (f), that a project that is not a major modification for
the pollutant may result in a significant emissions increase of such pollutant,
and the owner or operator elects to use the method specified in Section
203.1320(b)(1) through (b)(3) for calculating projected actual emissions.
a) Before beginning actual construction of the
project, the owner or operator shall document and maintain a record of the
following information:
1) A
description of the project;
2) Identification
of the emissions unit or units whose emissions of a regulated NSR pollutant
could be affected by the project; and
3) A description of the applicability test used to
determine that the project is not a major modification for any regulated NSR
pollutant, including the baseline actual emissions, the projected actual
emissions, the amount of emissions excluded under Section 203.1320(b)(3) and an
explanation for why such amount was excluded, and any netting calculations, if
applicable.
b) If the emissions unit is an existing electric
utility steam generating unit, before beginning actual construction, the owner
or operator shall provide a copy of the information set out in subsection (a)
to the Agency. Nothing in this subsection shall be construed to require the
owner or operator of such a unit to obtain any determination from the Agency
before beginning actual construction.
c) The
owner or operator shall monitor the emissions of any regulated NSR pollutant that
could increase as a result of the project and that is emitted by any emissions
unit identified in subsection (a)(2); and calculate and maintain a record of
the annual emissions, in tons per year on a calendar year basis, for a period
of 5 years following resumption of regular operations after the change, or for
a period of 10 years following resumption of regular operations after the
change if the project increases the design capacity or potential to emit that
regulated NSR pollutant at such emissions unit.
d) If
the unit is an existing electric utility steam generating unit, the owner or
operator shall submit a report to the Agency within 60 days after the end of
each year during which records must be generated under subsection (c) setting
out the unit's annual emissions during the calendar year that preceded
submission of the report.
e) If
the unit is an existing unit other than an electric utility steam generating
unit, the owner or operator shall submit a report to the Agency if the annual
emissions, in tons per year, from the project identified in subsection (a),
exceed the baseline actual emissions (as documented and maintained under
subsection (a)(3)), by a significant amount (as defined in Section 203.1370)
for that regulated NSR pollutant, and if such emissions differ from the
preconstruction projection as documented and maintained under subsection (a)(3).
Such report shall be submitted to the Agency within 60 days after the end of
such year. The report shall contain the following:
1) The
name, address, and telephone number of the major stationary source;
2) The
annual emissions as calculated under subsection (c); and
3) Any
other information that the owner or operator wishes to include in the report
(e.g., an explanation as to why the emissions differ from the preconstruction
projection).
f) A "reasonable possibility" under this
Section occurs when the owner or operator calculates the project to result in
either:
1) A projected actual emissions increase of at
least 50% of the amount that is a "significant emissions increase",
as defined in Section 203.1380 (without reference to the amount that is a
significant net emissions increase), for the regulated NSR pollutant; or
2) A
projected actual emissions increase that, added to the amount of emissions
excluded under Section 203.1320(b)(3), sums to at least 50% of the amount that
is a "significant emissions increase", as defined under Section
203.1380 (without reference to the amount that is a significant net emissions
increase), for the regulated NSR pollutant. For a project for which a
reasonable possibility occurs only within the meaning of this subsection (f)(2),
and not also within the meaning of subsection (f)(1), then subsections (b)
through (e) do not apply to the project.
g) The
owner or operator of the source shall make the information required to be
documented and maintained pursuant to this Section available for review upon a
request for inspection by the Agency or the USEPA or the general public pursuant
to the requirements of Section 39.5(8)(e) of the Act.
(Source: Added at 49 Ill. Reg. 6237,
effective April 23, 2025)