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Adjustments to Original Lead (2008) Nonattainment Area Baseline

Data is current as of September 30, 2020


BOUNDARY CHANGE
September 24, 2014, Effective October 03, 2014 ( 79 FR 56962 )
Hayden, AZ - ARIZONA
 
DESIGNATION TO NONATTAINMENT
September 03, 2014, Effective October 03, 2014 ( 79 FR 52205 )
Hayden, AZ - ARIZONA