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Adjustments to Original 1-Hour Ozone (1979) Nonattainment Area Baseline

As of February 13, 2017


AREA SPLIT
November 08, 2001, Effective December 10, 2001 ( 66 FR 56476 )
East Kern Co, CA - CALIFORNIA
Kern Co
 
November 08, 2001, Effective December 10, 2001 ( 66 FR 56476 )
San Joaquin Valley, CA - CALIFORNIA
Fresno Co, Kern Co, Kings Co, Madera Co, Merced Co, San Joaquin Co, Stanislaus Co, Tulare Co
 
September 23, 2013, Effective October 23, 2013 ( 78 FR 58189 )
Morongo Band of Mission Indians - CALIFORNIA
 
September 23, 2013, Effective October 23, 2013 ( 78 FR 58189 )
Southeast Desert Modified AQMA, CA - CALIFORNIA
 
BOUNDARY CHANGE
November 30, 1992, Effective December 30, 1992 ( 57 FR 56762 )
New York-N. New Jersey-Long Island, NY-NJ-CT - NEW YORK
Orange and Putnam Counties: The November 6, 1991 notice indicated that the State requested time to study the boundaries and classification for these two counties and that EPA would evaluate the State study. Both counties are in the New York City CMSA. The following action was taken in the November 30, 1992 notice: o Putnam County was placed in the Poughkeepsie Nonattainment Area (Marginal). o The portions of Orange County that remain with the New York nonattainment area (classified Severe-17) are: Blooming Grove, Chester, Highlands, Monroe, Tuxedo, Warwick, and Woodbury. o The remaining portions of Orange County (16 towns and cities) are designated as attainment. See April 21, 1994 notice.
 
November 30, 1992, Effective December 30, 1992 ( 57 FR 56762 )
Salem, OR - OREGON
Boundary Change from City of Salem to Salem Area Transportation Study
 
November 30, 1992, Effective December 30, 1992 ( 57 FR 56762 )
Seattle-Tacoma, WA - WASHINGTON
Boundary Change (small reduction)
 
April 21, 1994, Effective April 21, 1994 ( 59 FR 18967 )
Poughkeepsie, NY - NEW YORK
(Marginal) See October 6, 1994 Notice Below Orange County: Remainder of county (16 towns and cities) joined to Poughkeepsie.
 
October 23, 1995, Effective November 20, 1995 ( 60 FR 54310 )
Richmond, VA - VIRGINIA
Boundary Change excluding all of Charles City County west of Route 156. The boundaries for the Charles City County portion of the Richmond nonattainment area include the area surrounding the air quality monitor and the urbanized portion of the county that is contiguous with the rest of the Richmond nonattainment area.
 
October 07, 2003, Effective November 06, 2003 ( 68 FR 57820 )
Los Angeles-South Coast Air Basin, CA - CALIFORNIA
 
October 07, 2003, Effective November 06, 2003 ( 68 FR 57820 )
Southeast Desert Modified AQMA, CA - CALIFORNIA
 
CHANGE TO A LOWER CLASSIFICATION
November 30, 1992, Effective December 30, 1992 ( 57 FR 56762 )
Muskegon, MI - MICHIGAN
Reclassified from Serious to Moderate
 
November 30, 1992, Effective December 30, 1992 ( 57 FR 56762 )
Sheboygan, WI - WISCONSIN
Reclassified from Serious to Moderate
 
January 19, 1995, Effective February 21, 1995 ( 60 FR 3771 )
San Diego, CA - CALIFORNIA
Reclassified from Severe to Serious
 
April 02, 1996, Effective June 03, 1996 ( 61 FR 14496 )
Beaumont-Port Arthur, TX - TEXAS
Reclassified from Serious to Moderate
 
January 06, 1997, Effective December 20, 1996 ( 62 FR 648 )
Pointe Coupee Parish, LA - LOUISIANA
Reclassify from Serious to Marginal
 
CHANGE TO A HIGHER CLASSIFICATION (BUMP-UPS)
October 06, 1994, Effective November 07, 1994 ( 59 FR 50848 )
Poughkeepsie, NY - NEW YORK
Reclassify from Marginal to Moderate
 
April 25, 1995, Effective June 01, 1995 ( 60 FR 20237 )
Sacramento Metro, CA - CALIFORNIA
Reclassify from Serious to Severe 2005
 
November 06, 1997, Effective December 08, 1997 ( 62 FR 60001 )
Phoenix, AZ - ARIZONA
Reclassify from Moderate to Serious
 
December 10, 1997, Effective January 09, 1998 ( 62 FR 65025 )
Santa Barbara-Santa Maria-Lompoc, CA - CALIFORNIA
Reclassify from Moderate to Serious
 
February 18, 1998, Effective March 20, 1998 ( 63 FR 8128 )
Dallas-Fort Worth, TX - TEXAS
Reclassify from Moderate to Serious
 
November 08, 2001, Effective December 10, 2001 ( 66 FR 56476 )
San Joaquin Valley, CA - CALIFORNIA
Reclassify from Serious to Severe 2005
 
January 24, 2003, Effective March 25, 2003 ( 68 FR 3410 )
Washington, DC-MD-VA - DISTRICT OF COLUMBIA
Reclassify from Serious to Severe 2005
 
January 24, 2003, Effective March 25, 2003 ( 68 FR 3410 )
Washington, DC-MD-VA - MARYLAND
Reclassify from Serious to Severe 2005
 
January 24, 2003, Effective March 25, 2003 ( 68 FR 3410 )
Washington, DC-MD-VA - VIRGINIA
Reclassify from Serious to Severe 2005
 
January 30, 2003, Effective January 30, 2003 ( 68 FR 4835 )
St. Louis, MO-IL - ILLINOIS
Reclassify from Moderate to Serious
 
January 30, 2003, Effective January 30, 2003 ( 68 FR 4835 )
St. Louis, MO-IL - MISSOURI
Reclassify from Moderate to Serious
 
April 24, 2003, Effective June 23, 2003 ( 68 FR 20077 )
Baton Rouge, LA - LOUISIANA
Reclassify from Serious to Severe
 
September 26, 2003, Effective January 01, 2004 ( 68 FR 55469 )
Atlanta, GA - GEORGIA
Reclassify from Serious to Severe
 
March 30, 2004, Effective April 29, 2004 ( 69 FR 16483 )
Beaumont-Port Arthur, TX - TEXAS
Reclassify from Moderate to Serious
 
April 16, 2004, Effective May 17, 2004 ( 69 FR 20550 )
San Joaquin Valley, CA - CALIFORNIA
Reclassify from Severe 2005 to Extreme
 
DESIGNATION TO NONATTAINMENT
June 12, 1995, Effective July 12, 1995 ( 60 FR 30789 )
Sunland Park, NM (New Area 1995) - NEW MEXICO
Dona Ana County (part) Classified as Marginal
 
July 10, 1998, Effective August 10, 1998 ( 63 FR 37258 )
San Francisco Bay Area, CA - CALIFORNIA
Alameda Co, Contra Costa Co, Marin Co, Napa Co, San Francisco Co, San Mateo Co, Santa Clara Co, Solano Co, Sonoma Co
 
September 11, 2001, Effective September 11, 2001 ( 99 FR 9000 )
Cincinnati-Hamilton, OH-KY - KENTUCKY
Previously Moderate Boone Co, Campbell Co, Kenton Co
 
September 11, 2001, Effective September 11, 2001 ( 99 FR 9000 )
Cincinnati-Hamilton, OH-KY - OHIO
Previously Moderate Butler Co, Clermont Co, Hamilton Co, Warren Co