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8-Hour Ozone (1997) Nonattainment Area State/Area/County Report - NAAQS Revoked

As of September 22, 2016
View Notes
Area Name   (Category/Classification)      (P) Partial County
CALIFORNIA (Region IX)
  Amador and Calaveras Cos. (Central Mountain Cos.), CA (Moderate - Nonattainment)
Amador Co
Calaveras Co
 
  Chico, CA (Marginal - Nonattainment)
Butte Co
 
  Imperial Co, CA (Moderate - Nonattainment)
Imperial Co
 
  Kern Co (Eastern Kern), CA (Moderate - Nonattainment)
Kern Co (P)
 
  Los Angeles-San Bernardino Cos. (W Mojave Desert), CA (Severe 15 - Nonattainment)
Los Angeles Co (P)
San Bernardino Co (P)
 
  Los Angeles-South Coast Air Basin, CA (Extreme - Nonattainment)
Los Angeles Co (P)
Orange Co
Riverside Co (P)
San Bernardino Co (P)
 
  Mariposa and Tuolumne Cos (Southern Mtn), CA (Moderate - Nonattainment)
Mariposa Co
Tuolumne Co
 
  Morongo Band of Mission Indians (Severe 17 - Nonattainment)
Riverside Co (P)
 
  Nevada Co. (Western part), CA (Moderate - Nonattainment)
Nevada Co (P)
 
  Riverside Co. (Coachella Valley), CA (Severe 15 - Nonattainment)
Riverside Co (P)
 
  Sacramento Metro, CA (Severe 15 - Nonattainment)
El Dorado Co (P)
Placer Co (P)
Sacramento Co
Solano Co (P)
Sutter Co (P)
Yolo Co
 
  San Francisco Bay Area, CA (Marginal - Nonattainment)
Alameda Co
Contra Costa Co
Marin Co
Napa Co
San Francisco Co
San Mateo Co
Santa Clara Co
Solano Co (P)
Sonoma Co (P)
 
  San Joaquin Valley, CA (Extreme - Nonattainment)
Fresno Co
Kern Co (P)
Kings Co
Madera Co
Merced Co
San Joaquin Co
Stanislaus Co
Tulare Co
 
  Sutter Co (Sutter Buttes), CA (Marginal - Nonattainment)
Sutter Co (P)
 
  Ventura Co, CA (Serious - Nonattainment)
Ventura Co (P)
 
COLORADO (Region VIII)
  Denver-Boulder-Greeley-Ft. Collins-Loveland, CO (Marginal - Nonattainment)
Adams Co
Arapahoe Co
Boulder Co
Broomfield Co
Denver Co
Douglas Co
Jefferson Co
Larimer Co (P)
Weld Co (P)
 
CONNECTICUT (Region I)
  Greater Connecticut, CT (Moderate - Nonattainment)
Hartford Co
Litchfield Co
New London Co
Tolland Co
Windham Co
 
  New York-N. New Jersey-Long Island, NY-NJ-CT (Moderate - Nonattainment)
Fairfield Co
Middlesex Co
New Haven Co
 
DELAWARE (Region III)
  Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE (Moderate - Nonattainment)
Kent Co
New Castle Co
Sussex Co
 
DISTRICT OF COLUMBIA (Region III)
  Washington, DC-MD-VA (Moderate - Nonattainment)
Entire District
 
MARYLAND (Region III)
  Baltimore, MD (Serious - Nonattainment)
Anne Arundel Co
Baltimore (City)
Baltimore Co
Carroll Co
Harford Co
Howard Co
 
  Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE (Moderate - Nonattainment)
Cecil Co
 
  Washington, DC-MD-VA (Moderate - Nonattainment)
Calvert Co
Charles Co
Frederick Co
Montgomery Co
Prince George's Co
 
MASSACHUSETTS (Region I)
  Boston-Lawrence-Worcester (E. Mass), MA (Moderate - Nonattainment)
Barnstable Co
Bristol Co
Dukes Co
Essex Co
Middlesex Co
Nantucket Co
Norfolk Co
Plymouth Co
Suffolk Co
Worcester Co
 
  Springfield (W. Mass), MA (Moderate - Nonattainment)
Berkshire Co
Franklin Co
Hampden Co
Hampshire Co
 
NEW JERSEY (Region II)
  New York-N. New Jersey-Long Island, NY-NJ-CT (Moderate - Nonattainment)
Bergen Co
Essex Co
Hudson Co
Hunterdon Co
Middlesex Co
Monmouth Co
Morris Co
Passaic Co
Somerset Co
Sussex Co
Union Co
Warren Co
 
  Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE (Moderate - Nonattainment)
Atlantic Co
Burlington Co
Camden Co
Cape May Co
Cumberland Co
Gloucester Co
Mercer Co
Ocean Co
Salem Co
 
NEW YORK (Region II)
  Albany-Schenectady-Troy, NY (Marginal - Nonattainment)
Albany Co
Greene Co
Montgomery Co
Rensselaer Co
Saratoga Co
Schenectady Co
Schoharie Co
 
  Buffalo-Niagara Falls, NY (Moderate - Nonattainment)
Erie Co
Niagara Co
 
  Essex Co (Whiteface Mtn), NY (Marginal - Nonattainment)
Essex Co (P)
 
  Jamestown, NY (Moderate - Nonattainment)
Chautauqua Co
 
  Jefferson Co, NY (Moderate - Nonattainment)
Jefferson Co
 
  New York-N. New Jersey-Long Island, NY-NJ-CT (Moderate - Nonattainment)
Bronx Co
Kings Co
Nassau Co
New York Co
Queens Co
Richmond Co
Rockland Co
Suffolk Co
Westchester Co
 
  Poughkeepsie, NY (Moderate - Nonattainment)
Dutchess Co
Orange Co
Putnam Co
 
  Rochester, NY (Marginal - Nonattainment)
Genesee Co
Livingston Co
Monroe Co
Ontario Co
Orleans Co
Wayne Co
 
PENNSYLVANIA (Region III)
  Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE (Moderate - Nonattainment)
Bucks Co
Chester Co
Delaware Co
Montgomery Co
Philadelphia Co
 
  Pittsburgh-Beaver Valley, PA (Moderate - Nonattainment)
Allegheny Co
Armstrong Co
Beaver Co
Butler Co
Fayette Co
Washington Co
Westmoreland Co
 
RHODE ISLAND (Region I)
  Providence (all of RI), RI (Moderate - Nonattainment)
Bristol Co
Kent Co
Newport Co
Providence Co
Washington Co
 
TEXAS (Region VI)
  Dallas-Fort Worth, TX (Serious - Nonattainment)
Collin Co
Dallas Co
Denton Co
Ellis Co
Johnson Co
Kaufman Co
Parker Co
Rockwall Co
Tarrant Co
 
  Houston-Galveston-Brazoria, TX (Severe 15 - Nonattainment)
Brazoria Co
Chambers Co
Fort Bend Co
Galveston Co
Harris Co
Liberty Co
Montgomery Co
Waller Co
 
VIRGINIA (Region III)
  Washington, DC-MD-VA (Moderate - Nonattainment)
Alexandria
Arlington Co
Fairfax
Fairfax Co
Falls Church
Loudoun Co
Manassas
Manassas Park
Prince William Co
 
WISCONSIN (Region V)
  Sheboygan, WI (Moderate - Nonattainment)
Sheboygan Co

Notes:

Details about the designations and classifications of previous 1-hour ozone nonattainment and maintenance areas can be found here.

On June 8, 2007, the United States Court of Appeals vacated the Subpart 1 portion of the Phase 1 Rule (Court Order) (PDF). On May 14, 2012, the Former Subpart 1 nonattainment areas were classified under Subpart 2 (77 FR 28424 ) (PDF), effective June 13, 2012.


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