Regional Air Quality Planning

MAG was designated by the Governor of Arizona in 1978 and recertified by the Arizona Legislature in 1992 to serve as the regional air quality planning agency for the Maricopa County nonattainment area. In this role, MAG develops regional air quality plans to address air pollution problems. In June 2016, the Governor certified MAG as the lead planning organization for the Pinal County PM-10 and PM-2.5 nonattainment areas. MAG will develop air quality plans for these areas in cooperation with the Sun Corridor Metropolitan Planning Organization.

PLEASE NOTE: Because all the files on this page are very large files, right click and choose "Save Target As..." to save the files to your disk.

2023 Five Percent Particulate Plan for PM-10 for the West Pinal County Nonattainment Area

• 2023 Five Percent Particulate Plan for PM-10 for the West Pinal County Nonattainment Area (PDF)
• 2023 Five Percent Particulate Plan – Appendices Volume 1 (PDF)
• 2023 Five Percent Particulate Plan – Appendices Volume 2 (PDF)
• 2023 Five Percent Particulate Plan – Appendices Volume 3 (PDF)
• 2023 Five Percent Particulate Plan – Appendices Volume 4 (PDF)
• 2023 Five Percent Particulate Plan – Appendices Volume 5 (PDF)

Evaluating New and Available Ozone Precursor Control Measures in the Maricopa Nonattainment Area

MAG contracted with Ramboll US Consulting to identify and evaluate new and available ozone precursor control measures to assist in meeting Clean Air Act requirements related to the 2015 ozone standard for the Maricopa nonattainment area. Ramboll’s evaluation includes emissions reductions and cost estimates for each identified new and available control measure when sufficient information is available. Ramboll’s final report is accessible by clicking the link below.

• Ramboll Final Report: Evaluating New and Available Ozone Precursor Control Measures in the Maricopa Nonattainment Area (PDF)

2022 Serious Area Particulate Plan for PM-10 for the West Pinal County Nonattainment Area

• 2022 Serious Area Particulate Plan for PM-10 for the West Pinal County Nonattainment Area
• 2022 Serious Area Particulate Plan – Appendices Volume 1
• 2022 Serious Area Particulate Plan – Appendices Volume 2
• 2022 Serious Area Particulate Plan – Appendices Volume 3
• 2022 Serious Area Particulate Plan – Appendices Volume 4
• 2022 Serious Area Particulate Plan – Appendices Volume 5
• 2022 Serious Area Particulate Plan – Appendices Volume 6

MAG 2020 Eight-Hour Ozone Plan

• MAG 2020 Eight-Hour Ozone Plan – Submittal of Marginal Area Requirements for the Maricopa Nonattainment Area

MAG 2017 Eight-Hour Ozone Moderate Area Plan

• MAG 2017 Eight-Hour Ozone Moderate Area Plan for the Maricopa Nonattainment Area
• MAG 2017 Eight-Hour Ozone Moderate Area Plan: Appendices Volume One
• MAG 2017 Eight-Hour Ozone Moderate Area Plan: Appendices Volume Two
• MAG 2017 Eight-Hour Ozone Moderate Area Plan: Appendices Volume Three
• MAG 2017 Eight-Hour Ozone Moderate Area Plan: Appendices Volume Four
• MAG 2017 Eight-Hour Ozone Moderate Area Plan: Appendices Volume Five

MAG 2014 SIP Revision for the Removal of Stage II Controls

• MAG 2014 State Implementation Plan Revision for the Removal of Stage II Vapor Recovery Controls in the Maricopa Eight-Hour Ozone Nonattainment Area (PDF, 2.6 MB)

MAG 2014 Eight-Hour Ozone Plan

• MAG 2014 Eight-Hour Ozone Plan — Submittal of Marginal Area Requirements for the Maricopa Nonattainment Area (PDF, 8 MB)

MAG 2013 Carbon Monoxide Maintenance Plan

• MAG 2013 Carbon Monoxide Maintenance Plan for the Maricopa County Area
• MAG 2013 Carbon Monoxide Maintenance Plan for the Maricopa County Area - Appendices
• MAG 2013 Carbon Monoxide Maintenance Plan for the Maricopa County Area - Combined Document

MAG 2012 Five Percent Plan for PM-10

• MAG 2012 Five Percent Plan for PM-10 for the Maricopa County Nonattainment Area (PDF, 2 MB)
• MAG 2012 Five Percent Plan for PM-10: Appendices, Volume 1 (PDF, 5 MB)
• MAG 2012 Five Percent Plan for PM-10: Appendices, Volume 2 (PDF, 5 MB)
• MAG 2012 Five Percent Plan for PM-10: Main Plan and Appendices (PDF, 12 MB)

MAG 2007 Five Percent Plan for PM-10

• MAG 2007 Five Percent Plan for PM-10 for the Maricopa County Nonattainment Area (52.9MB, PDF)
• Appendices, Volume 1 (52.9MB, PDF)
• Appendices, Volume 2 (11.8MB, PDF)
• Appendices, Volume 3 (39.7MB, PDF)
• Appendices, Volume 4 (54.1MB, PDF)
• Appendices, Volume 5 (19.5MB, PDF)
• Commitments for Implementation, Volume 1 (26.1MB, PDF)
• Commitments for Implementation, Volume 2 (52.9MB, PDF)

MAG Final Eight-Hour Ozone Redesignation Request and Maintenance Plan (2009)

• Final Eight-Hour Ozone Maintenance Plan (PDF, 1.5 MB)
• Final Eight-Hour Ozone Maintenance Plan, Appendices, Volume One (PDF, 11.6 MB)
• Final Eight-Hour Ozone Maintenance Plan, Appendices, Volume Two (PDF, 10.5 MB)
• Final Eight-Hour Ozone Maintenance Plan, Appendices, Volume Three (PDF, 3.9 MB)

MAG Eight-Hour Ozone Plan for the Maricopa Nonattainment Area (2007)

• Eight-Hour Ozone Plan (PDF, 4.7 MB)
• Appendices, Volume 1 (PDF, 35.0 MB)
• Appendices, Volume 2 (PDF, 78.2 MB)

PM-10 Source Attribution and Deposition Study (2008)

• PM-10 Source Attribution and Deposition Study (2.59 MB, PDF)
• Appendix A (1.31 MB, PDF)
• Appendix B (2.79 MB, PDF)
• Appendix C (254.48 KB, PDF)
• Appendix D-1 (4.15 MB, PDF)
• Appendix D-2 (4.26 MB, PDF)
• Appendix D-3 (1.11 MB, PDF)
• Appendix E (583.84 KB, PDF)

PM-10 Exceedance Prevention Workshop Materials

• Arizona Legislature House Bill 2208
• City of Phoenix Dust Control Codes
• City of Phoenix Dust Reduction Task Force Long Term Recommendations
• City of Phoenix Dust Reduction Task Force Short Term Recommendations
• Identifying Areas Subject to Windblown Dust Brochure
• Land Use Maps Around PM-10 Monitors
• MAG Rapid Response Action Plan Template and Toolkit
• Maricopa County Rapid Response Event Log
• Maricopa County Rapid Response Notification PowerPoint Presentation
• PM-10 Monitors in Maricopa County and the PM-10 Nonattainment Area
• Potential Activities Subject to Dust Action General Permit and Best Management Practices
• Unpaved Roads Mileage Summary for PM-10 Nonattainment Area
• Unpaved Roads Mileages and Maps Near PM-10 Monitors