Area Designations for 1997 Ground-level Ozone Standards
Region 6: State Designations for the 1997 8-Hour Ozone Standard
Boundary Designations for the 1997 8-Hour Ozone Standard
- EPA Region 6
(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 |
---|---|---|---|---|---|---|
Arkansas |
Memphis, TN-AR 1 Map (PDF) (1 p, 52KB) |
Crittenden | Marginal 1 | June 2007 | Moderate | - |
Louisiana | Baton Rouge, LA Map (PDF) (1 p, 68KB) |
Ascension East Baton Rouge Iberville Livingston West Baton Rouge |
Marginal | June 2007 | Moderate | - |
New Mexico |
entire state is attainment | |||||
Oklahoma | entire state is attainment | |||||
Texas | Beaumont/Port Arthur, TX Map (PDF) (1 p, 62KB) |
Hardin Jefferson Orange |
Marginal | June 2007 | Moderate | - |
Dallas-Fort Worth, TX Map (PDF) (1 p, 89KB) |
Collin Dallas Denton Tarrant Ellis Johnson Kaufman Parker Rockwall |
Moderate | June 2010 | Moderate | - |
|
Houston-Galveston-Brazoria, TX Map (PDF) (1 p, 96KB) |
Brazoria Chambers Fort Bend Galveston Harris Liberty Montgomery Waller |
Moderate | June 2010 | Severe | - |
|
San Antonio, TX Map (PDF) (1 p, 56KB) |
Bexar Comal Guadalupe |
Dec 2007 | Attainment | 4/15/08 |
1 This area received a bump-down in classification. See the bump-down requests page for information.