Area Designations for 2006 24-Hour Fine Particle (PM2.5) Standards
2006 24-Hour PM2.5 Standards — Region 8 Final Designations, October 2009
Boundary Designations for the 2006 PM2.5 Standards - EPA Region 8
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.
| State | Area Name | Counties |
|---|---|---|
| Colorado | Entire State is unclassifiable/attainment | |
| Montana* | Entire State is unclassifiable/attainment | |
| North Dakota | Entire State is unclassifiable/attainment | |
| South Dakota | Entire State is unclassifiable/attainment | |
| Utah | Logan, UT-ID | Cache (P) |
| Provo, UT | Utah (P) | |
| Salt Lake City, UT | Box Elder (P) Davis Salt Lake Tooele (P) Weber (P) |
|
| Wyoming | Entire State is unclassifiable/attainment | |
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Recommendations from Region 8 States and EPA Responses
Region 8 Area Status December 2008 (Not Final)