Vote — approved

Steve Gallardo	yes
Jack Sellers	yes
Bill Gates	yes
Clint Hickman	yes
Steve Chucri	yes

80.RULE 348 (AEROSPACE MANUFACTURING AND REWORK OPERATIONS) RACT CERTIFICATION Set a public hearing, as required by Arizona Revised Statutes (A.R.S.) § 49-474(4), for June 23, 2021, at 9:30 a.m. to solicit comments on the proposed certification of Maricopa County Air Pollution Control Regulation III - Rule 348 (Aerospace Manufacturing and Rework Operations) as meeting the Clean Air Act, Section 182 Reasonably Available Control Technology (RACT) requirements for the 2008 8-hour Ozone National Amb

Item Text

80. RULE 348 (AEROSPACE MANUFACTURING AND REWORK OPERATIONS) RACT CERTIFICATION Set a public hearing, as required by Arizona Revised Statutes (A.R.S.) § 49-474(4), for June 23, 2021, at 9:30 a.m. to solicit comments on the proposed certification of Maricopa County Air Pollution Control Regulation III - Rule 348 (Aerospace Manufacturing and Rework Operations) as meeting the Clean Air Act, Section 182 Reasonably Available Control Technology (RACT) requirements for the 2008 8-hour Ozone National Ambient Air Quality Standard (NAAQS) as it is currently written, and the proposed submission of this RACT Certification to the U.S. Environmental Protection Agency (EPA). The Maricopa County Air Quality Department (MCAQD) is not proposing any changes to Rule 348. Following the public hearing, the Board is requested to approve the proposed RACT Certification of Rule 348 and to approve submission of the RACT Certification to the EPA. Maricopa County is currently classified as a moderate nonattainment area by the EPA with respect to the 2008 NAAQS for Ozone. As such, Maricopa County is required to implement RACT for all major sources of volatile organic compounds (VOC) and for each VOC source category for which the EPA has issued a Control Technique Guideline (CTG). In 2017, a State Implementation Plan Revision for the Maricopa County Air Quality Department Ozone Rules was submitted to the EPA by the Arizona Department of Environmental Quality, which included a negative declaration for the CTG source category of aerospace coating. After the EPA requested additional information, the MCAQD reevaluated the source category and determined that there are facilities in Maricopa County where emissions from aerospace coating operations exceed the emissions threshold in the Aerospace CTG. As a result, the EPA disapproved MCAQD’s negative declaration for aerospace coating and required the MCAQD to evaluate Rule 348 to determine if it represents RACT for the 2008 8-hour Ozone NAAQS. The MCAQD evaluated Rule 348 and determined that it is consistent with the Aerospace CTG and is generally consistent with several other aerospace coating rules recently approved as RACT and, therefore, meets RACT for the 2008 Ozone NAAQS and no changes to the current version of Rule 348 are required. The MCAQD will continue with the version approved on September 25, 2013. (C-85-21-043-X-00)

Attachments (1)

Vote — approved

Steve Gallardo	yes
Jack Sellers	yes
Bill Gates	yes
Clint Hickman	yes
Steve Chucri	yes

9.RULE 348 (AEROSPACE MANUFACTURING AND REWORK OPERATIONS) RACT CERTIFICATION Convene a public hearing, as required by Arizona Revised Statutes (A.R.S.) § 49-474(4), to solicit comments on the proposed certification of Maricopa County Air Pollution Control Regulation III - Rule 348 (Aerospace Manufacturing and Rework Operations) as meeting the Clean Air Act, Section 182 Reasonably Available Control Technology (RACT) requirements for the 2008 8-hour Ozone National Ambient Air Quality Standard (NA

Item Text

9. RULE 348 (AEROSPACE MANUFACTURING AND REWORK OPERATIONS) RACT CERTIFICATION Convene a public hearing, as required by Arizona Revised Statutes (A.R.S.) § 49-474(4), to solicit comments on the proposed certification of Maricopa County Air Pollution Control Regulation III - Rule 348 (Aerospace Manufacturing and Rework Operations) as meeting the Clean Air Act, Section 182 Reasonably Available Control Technology (RACT) requirements for the 2008 8-hour Ozone National Ambient Air Quality Standard (NAAQS) as it is currently written, and the proposed submission of this RACT Certification to the U.S. Environmental Protection Agency (EPA). The Maricopa County Air Quality Department (MCAQD) is not proposing any changes to Rule 348. Following the public hearing, the Board is requested to approve the proposed RACT Certification of Rule 348 and to approve submission of the RACT Certification to the EPA. Maricopa County is currently classified as a moderate nonattainment area by the EPA with respect to the 2008 NAAQS for Ozone. As such, Maricopa County is required to implement RACT for all major sources of volatile organic compounds (VOC) and for each VOC source category for which the EPA has issued a Control Technique Guideline (CTG). In 2017, a State Implementation Plan Revision for the Maricopa County Air Quality Department Ozone Rules was submitted to the EPA by the Arizona Department of Environmental Quality, which included a negative declaration for the CTG source category of aerospace coating. After the EPA requested additional information, the MCAQD reevaluated the source category and determined that there are facilities in Maricopa County where emissions from aerospace coating operations exceed the emissions threshold in the Aerospace CTG. As a result, the EPA disapproved MCAQD’s negative declaration for aerospace coating and required the MCAQD to evaluate Rule 348 to determine if it represents RACT for the 2008 8-hour Ozone NAAQS. The MCAQD evaluated Rule 348 and determined that it is consistent with the Aerospace CTG and is generally consistent with several other aerospace coating rules recently approved as RACT and, therefore, meets RACT for the 2008 Ozone NAAQS and no changes to the current version of Rule 348 are required. The MCAQD will continue with the version approved on September 25, 2013. (C-85-21-043-X-01)