Statutes, codes, and regulations
Arizona Administrative Code
Title 18 - ENVIRONMENTAL QUALITYChapter 2 - DEPARTMENT OF ENVIRONMENTAL QUALITY - AIR POLLUTION CONTROL
Article 4 - PERMIT REQUIREMENTS FOR NEW MAJOR SOURCES AND MAJOR MODIFICATIONS TO EXISTING MAJOR SOURCES
Section R18-2-406 - Permit Requirements for Sources Located in Attainment and Unclassifiable Areas

Ariz. Admin. Code § 18-2-406

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Current through Register Vol. 30, No. 50, December 13, 2024
Section R18-2-406 - Permit Requirements for Sources Located in Attainment and Unclassifiable Areas
A. Except as provided in subsections (B) through (J) below and R18-2-408 (Innovative control technology), no permit or permit revision under this Article shall be issued to a person proposing to construct a new major source or make a major modification to a major source that would be constructed in an area designated as attainment or unclassifiable for any regulated NSR pollutant unless the source or modification meets the following conditions:
1. A new major source shall apply best available control technology (BACT) for each regulated NSR pollutant for which the potential to emit is significant.
2. A major modification shall apply BACT for each regulated NSR pollutant for which the project would result in a significant net emissions increase at the source. This requirement applies to each proposed emissions unit at which a net emissions increase in the pollutant would occur as a result of a physical change or change in the method of operation in the unit.
3. For phased construction projects, the determination of BACT shall be reviewed and modified as appropriate at the latest reasonable time which occurs no later than 18 months prior to commencement of construction of each independent phase of the project. At such time the owner or operator of the applicable stationary source may be required to demonstrate the adequacy of any previous determination of BACT for the source.
4. BACT shall be determined on a case-by-case basis and may constitute application of production processes or available methods, systems, and techniques, including fuel cleaning or treatment, clean fuels, or innovative fuel combustion techniques, for control of such pollutant. In no event shall such application of BACT result in emissions of any pollutant, which would exceed the emissions allowed by any applicable new source performance standard or national emission standard for hazardous air pollutants or by the applicable implementation plan. If the Director determines that technological or economic limitations on the application of measurement methodology to a particular emissions unit would make the imposition of an emissions standard infeasible, a design, equipment, work practice, operational standard, or combination thereof may be prescribed instead to satisfy the requirement for the application of BACT. Such standard shall, to the degree possible, set forth the emissions reduction achievable by implementation of such design, equipment, work practice, or operation and shall provide for compliance by means which achieve equivalent results.
5. The person applying for the permit or permit revision under this Article performs an air impact analysis and monitoring as specified in R18-2-407, and the analysis demonstrates that allowable emission increases from the proposed new major source or major modification, in conjunction with all other applicable emission increases or reductions, including secondary emissions, would not cause or contribute to concentrations of conventional air pollutants in violation of:
a. Any national ambient air quality standard in any air quality control region; or
b. Any applicable maximum increase allowed under R18-2-218 over the baseline concentration in any area.

6. Air quality models:
a. All estimates of ambient concentrations required under this Section shall be based on the applicable air quality models, databases, and other requirements specified in 40 CFR 51, Appendix W, "Guideline On Air Quality Models," as of June 30, 2017 (and no future amendments or additions), which shall be referred to hereinafter as "Guideline" and is adopted by reference and is on file with the Department.
b. Where an air quality impact model specified in the "Guideline" is not applicable, the model may be modified or another model substituted. Such a change shall be subject to notice and opportunity for public comment under R18-2-330. Written approval of the EPA Administrator shall be obtained for any modification or substitution.
B. This Section and R18-2-407 shall not apply to a new major source or major modification to a source with respect to a particular pollutant if the person applying for the permit or permit revision under this Article demonstrates that, as to that pollutant, the source or modification is located in an area designated as nonattainment for the pollutant. This exemption shall not apply to an area designated nonattainment for a revoked national ambient air quality standard in 40 CFR 81.
C. This Section, R18-2-407, and R18-2-410(B), (F), and (G) shall not apply to a new major source or a major modification if the source or modification would be a major source or major modification only if fugitive emissions, to the extent quantifiable, are considered in calculating the potential emissions of the source or modification, and the source does not belong to a section 302(j) category.
D. This Section, R18-2-407, and R18-2-410(B), (F), and (G) shall not apply to a new major source or major modification to a source when the owner or operator of the source is a nonprofit health or educational institution.
E. This Section, R18-2-407, and R18-2-410(B), (F) and (G) shall not apply to a portable source which would otherwise be a new major source or major modification to an existing source if all of the following conditions are satisfied:
1. The portable source proposes to relocate and will operate for no more than 24 months at its new location.
2. The source is subject to a permit or permit revision issued under this Section or 40 CFR 52.21.
3. The source is in compliance with the conditions of that permit or permit revision .
4. Emissions from the source will not impact a federal Class I area or an area where an applicable maximum increase allowed under R18-2-218 is known to be violated.
5. Reasonable notice is given to the Director prior to the relocation identifying the proposed new location and the probable duration of operation at the new location at least 10 calendar days in advance of the proposed relocation, unless a different time duration is previously approved by the Director.
F. Subsection (A)(5), R18-2-407, and R18-2-410(B) shall not apply to a proposed major source or major modification with respect to a particular pollutant, if the allowable emissions of that pollutant from the source, or the net emissions increase of that pollutant from the modification, would be temporary and impact no federal Class I area and no area where a maximum increase allowed under R18-2-218 is known to be violated.
G. Subsection (A)(5), R18-2-407, and R18-2-410(B) as they relate to any maximum allowable increase for a Class II area shall not apply to a modification of a major stationary source that was in existence on March 1, 1978, if the net increase in allowable emissions of each regulated NSR pollutant from the modification after the application of best available control technology would be less than 50 tons per year.
H. Subsection (A)(5)(b) shall not apply to a stationary source or modification with respect to any maximum increase allowed for nitrogen oxides under R18-2-218 if the owner or operator of the source or modification submitted an application for a permit under the applicable permit program approved or promulgated under the Act before the provisions embodying the maximum allowable increase took effect as part of the state implementation plan and the Director subsequently determined that the application as submitted before that date was complete.
I. Subsection (A)(5)(b) shall not apply to a stationary source or modification with respect to any maximum increase allowed for PM10 under R18-2-218 if the owner or operator of the source or modification submitted an application for a permit under the applicable permit program approved under the Act before the provisions embodying the maximum allowable increases for PM10 took effect as part of the state implementation plan and the Director subsequently determined that the application as submitted before that date was complete. Instead, subsection (A)(5)(b) shall apply with respect to the maximum allowable increases for total suspended particulate as in effect on the date the application was submitted.
J. Subsection (A)(5)(a) shall not apply to a stationary source or modification with respect to the national ambient air quality standards for PM2.5 in effect on March 18, 2013 if either of the following is true:
1. The Director determined a permit application subject to this Section was complete on or before December 14, 2012. Instead, subsection (A)(5)(a) shall apply with respect to the national ambient air quality standards for PM2.5 in effect at the time the Director determined the permit application to be complete.
2. The Director first published before March 18, 2013 a public notice of a proposed permit subject to this Section. Instead, subsection (A)(5)(a) shall apply with respect to the national ambient air quality standards for PM2.5 in effect at the time of first publication of the public notice.
K. Subsection (A)(5)(a) of this section shall not apply to a stationary source or modification with respect to the revised national ambient air quality standards for ozone published on October 26, 2015 if:
1. The Director has determined the permit application subject to this section to be complete on or before October 1, 2015. Instead, subsection (A)(5)(a) shall apply with respect to the national ambient air quality standards for ozone in effect at the time the Director determined the permit application to be complete.
2. The Director has first published, before December 25, 2015, a public notice of a preliminary determination or draft permit for the permit application subject to this section. Instead, subsection (A)(5)(a) shall apply with respect to the national ambient air quality standards for ozone in effect at the time the Director determined the permit application to be complete.
L. The owner or operator of a proposed source or modification shall submit all information necessary to perform any analysis or make a determination required under this Section. The owner or operator shall also provide information regarding:
1. The air quality impact of the source or modification, including meteorological and topographical data necessary to estimate such impact, and
2. The air quality impacts and the nature and extent of any or all general commercial, residential, industrial, and other growth which has occurred since August 7, 1977, in the area the source or modification would affect.
M. The issuance of a permit or permit revision under this Article in accordance with this Section shall not relieve the owner or operator of the responsibility to comply fully with applicable provisions of the SIP and any other requirements under local, state, or federal law.
N. At such time that a particular source or modification becomes a major source or major modification solely by virtue of a relaxation in any enforceable limitation which was established after August 7, 1980, on the capacity of the source or modification otherwise to emit a pollutant, such as a restriction on hours of operation, then the requirements of this Section shall apply to the source or modification as though construction had not yet commenced on the source or modification.

Ariz. Admin. Code § R18-2-406

Former Section R9-3-405, renumbered effective September 17, 1975 (Supp. 75-1). Former Section R9-3-406 repealed, new Section R9-3-406 adopted effective May 14, 1979 (Supp. 79-1). Former Section R9-3-406 renumbered without change as Section R18-2-406 (Supp. 87-3). Section R18-2-406 renumbered to R18-2-606, new Section R18-2-406 adopted effective November 15, 1993 (Supp. 93-4). Amended effective February 28, 1995 (Supp. 95-1). The references to R18-2-101(97)(a) in subsection (A)(1) and (2) amended to reference R18-2-101(104)(a)(Supp. 99-3). Amended by final rulemaking at 12 A.A.R. 1953, effective January 1, 2007 (Supp. 06-2). Amended by final rulemaking at 18 A.A.R. 1542, effective August 7, 2012 (Supp. 12-2). Amended by final rulemaking at 23 A.A.R. 333, effective 3/21/2017. Amended by final rulemaking at 25 A.A.R. 3630, effective 2/1/2020.