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Areas With the 1-hour Standard Revoked April 15, 2009 or November 20, 2008

As of June 15, 2005


Category/Classification No.
Areas
No.
Counties
2000
Pop.
(1000s)
Attainment
Date

Marginal EAC 1 8 1,285 12/2007
Subpart 1 EAC 13 41 8,523 12/2007
 

 
   TOTAL: 14 49 9,809

Based on air quality data from 2005, 2006 and the first three quarters of 2007, the Denver CO Subpart 1 EAC area was designated nonattainment for 8-hour Ozone, effective November 20, 2007 ( 72 FR 53952).


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