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.
| State |
Nonattainment Area Name |
Counties |
April 15, 2004 Classification |
Maximum Attainment Date (from June 15, 2004) |
Current/Proposed Classification | Resdesignation Effective Date |
|---|---|---|---|---|---|---|
| Colorado |
Denver-Boulder-Greeley-Ft. Collins, CO Map (PDF) (2 pp, 73KB) |
Adams Arapahoe Boulder Broomfield Denver Douglas Jefferson Larimer (P) Weld (P) |
Dec 2007 | Former Subpart 1 | - |
|
| Montana |
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 | |||||