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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)

Map showing designations for region 6 map legend

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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). Also, some counties are participating in an early action compact. These are identified as EAC. If a county is not listed below, EPA has designated it as unclassifiable/attainment. The redesignation request section of this site contains a table of redesignated areas and links to the related Federal Register documents.

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 (EAC)
Map (PDF) (1 p, 56KB)
Bexar
Comal
Guadalupe
(EAC) Dec 2007 Attainment
4/15/08

1 This area received a bump-down in classification. See the bump-down requests page for information.

Region 6 Recommendations and EPA Responses

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