PUBLIC NOTICE | Exceptional Events in the Maricopa County (Greater Phoenix) O3 Nonattainment Area
ADEQ is soliciting comments on its second addendum to a previously submitted demonstration for an event that caused elevated concentrations of Ozone (O3) in the Maricopa County (Greater Phoenix) O3 Nonattainment area on June 20, 2015. ADEQ has decided to flag exceedance concentrations based on these analyses.