Area Designations for 1997 Ground-level Ozone Standards
Region 8: State Designations for the 1997 8-Hour Ozone Standard
Boundary Designations for the 1997 8-Hour Ozone Standard
- EPA Region 8
(as of September 18, 2009)
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This table identifies all counties EPA has designated as nonattainment.
In some cases EPA designated partial counties. These are identified by
a (P). If a county is not listed below, EPA has
designated it as unclassifiable/attainment. See also the table of redesignated areas.
Nonattainment Area Name
April 15, 2004 Classification
(from June 15, 2004)
|Current/Proposed Classification||Resdesignation Effective Date|
||Denver-Boulder-Greeley-Ft. Collins, CO
Map (PDF) (2 pp, 73KB)
|Dec 2007||Former Subpart 1||
||entire state is attainment|
|North Dakota||entire state is attainment|
|South Dakota||entire state is attainment|
|Utah||entire state is attainment|
|Wyoming||entire state is attainment|