EPA Reclassifies Denver Area as 'Serious' Nonattainment Zone Due to Ozone Standard Failure

Summary

The Environmental Protection Agency (EPA) has determined that the Denver-Boulder-Greeley-Ft. Collins-Loveland, Colorado nonattainment area failed to meet the 2008 ozone National Ambient Air Quality Standard (NAAQS) by the applicable deadline, prompting a reclassification to 'Serious' nonattainment zone, effective upon the final reclassification action.