On Aug. 15, 2018, the comment period begins for the proposed Exceptional Event Mitigation Plan for the Phoenix, Rillito, West Pinal and Yuma PM10 nonattainment areas.
Comments may be submitted as follows:
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Mail: (Must be postmarked or received by Sept. 14, 2018)
Air Quality Division, Air Quality Improvement Planning Section
1110 W. Washington Street
Phoenix, AZ 85007