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8-Hr Ozone (1997) Nonattainment Area/State/County Report

As of July 02, 2014
View Notes
Area Name   (Category/Classification)      (P) Partial County
  Albany-Schenectady-Troy, NY (Marginal)
NEW YORK (Region II)
Albany Co
Greene Co
Montgomery Co
Rensselaer Co
Saratoga Co
Schenectady Co
Schoharie Co
 
  Amador and Calaveras Cos. (Central Mountain Cos.), CA (Moderate)
CALIFORNIA (Region IX)
Amador Co
Calaveras Co
 
  Baltimore, MD (Serious)
MARYLAND (Region III)
Anne Arundel Co
Baltimore (City)
Baltimore Co
Carroll Co
Harford Co
Howard Co
 
  Boston-Lawrence-Worcester (E. Mass), MA (Moderate)
MASSACHUSETTS (Region I)
Barnstable Co
Bristol Co
Dukes Co
Essex Co
Middlesex Co
Nantucket Co
Norfolk Co
Plymouth Co
Suffolk Co
Worcester Co
 
  Buffalo-Niagara Falls, NY (Moderate)
NEW YORK (Region II)
Erie Co
Niagara Co
 
  Chico, CA (Marginal)
CALIFORNIA (Region IX)
Butte Co
 
  Dallas-Fort Worth, TX (Serious)
TEXAS (Region VI)
Collin Co
Dallas Co
Denton Co
Ellis Co
Johnson Co
Kaufman Co
Parker Co
Rockwall Co
Tarrant Co
 
  Denver-Boulder-Greeley-Ft. Collins-Loveland, CO (Marginal)
COLORADO (Region VIII)
Adams Co
Arapahoe Co
Boulder Co
Broomfield Co
Denver Co
Douglas Co
Jefferson Co
Larimer Co (P)
Weld Co (P)
 
  Essex Co (Whiteface Mtn), NY (Marginal)
NEW YORK (Region II)
Essex Co (P)
 
  Greater Connecticut, CT (Moderate)
CONNECTICUT (Region I)
Hartford Co
Litchfield Co
New London Co
Tolland Co
Windham Co
 
  Houston-Galveston-Brazoria, TX (Severe 15)
TEXAS (Region VI)
Brazoria Co
Chambers Co
Fort Bend Co
Galveston Co
Harris Co
Liberty Co
Montgomery Co
Waller Co
 
  Imperial Co, CA (Moderate)
CALIFORNIA (Region IX)
Imperial Co
 
  Jamestown, NY (Moderate)
NEW YORK (Region II)
Chautauqua Co
 
  Jefferson Co, NY (Moderate)
NEW YORK (Region II)
Jefferson Co
 
  Kern Co (Eastern Kern), CA (Moderate)
CALIFORNIA (Region IX)
Kern Co (P)
 
  Los Angeles-San Bernardino Cos. (W Mojave Desert), CA (Severe 15)
CALIFORNIA (Region IX)
Los Angeles Co (P)
San Bernardino Co (P)
 
  Los Angeles-South Coast Air Basin, CA (Extreme)
CALIFORNIA (Region IX)
Los Angeles Co (P)
Orange Co
Riverside Co (P)
San Bernardino Co (P)
 
  Mariposa and Tuolumne Cos (Southern Mtn), CA (Moderate)
CALIFORNIA (Region IX)
Mariposa Co
Tuolumne Co
 
  Morongo Band of Mission Indians (Severe 17)
CALIFORNIA (Region IX)
Morongo Band of Mission Indians
 
  Nevada Co. (Western part), CA (Moderate)
CALIFORNIA (Region IX)
Nevada Co (P)
 
  New York-N. New Jersey-Long Island, NY-NJ-CT (Moderate)
CONNECTICUT (Region I)
Fairfield Co
Middlesex Co
New Haven Co
NEW JERSEY (Region II)
Bergen Co
Essex Co
Hudson Co
Hunterdon Co
Middlesex Co
Monmouth Co
Morris Co
Passaic Co
Somerset Co
Sussex Co
Union Co
Warren Co
NEW YORK (Region II)
Bronx Co
Kings Co
Nassau Co
New York Co
Queens Co
Richmond Co
Rockland Co
Suffolk Co
Westchester Co
 
  Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE (Moderate)
DELAWARE (Region III)
Kent Co
New Castle Co
Sussex Co
MARYLAND (Region III)
Cecil Co
NEW JERSEY (Region II)
Atlantic Co
Burlington Co
Camden Co
Cape May Co
Cumberland Co
Gloucester Co
Mercer Co
Ocean Co
Salem Co
PENNSYLVANIA (Region III)
Bucks Co
Chester Co
Delaware Co
Montgomery Co
Philadelphia Co
 
  Phoenix-Mesa, AZ (Marginal)
ARIZONA (Region IX)
Maricopa Co (P)
Pinal Co (P)
 
  Pittsburgh-Beaver Valley, PA (Moderate)
PENNSYLVANIA (Region III)
Allegheny Co
Armstrong Co
Beaver Co
Butler Co
Fayette Co
Washington Co
Westmoreland Co
 
  Poughkeepsie, NY (Moderate)
NEW YORK (Region II)
Dutchess Co
Orange Co
Putnam Co
 
  Providence (all of RI), RI (Moderate)
RHODE ISLAND (Region I)
Bristol Co
Kent Co
Newport Co
Providence Co
Washington Co
 
  Riverside Co. (Coachella Valley), CA (Severe 15)
CALIFORNIA (Region IX)
Riverside Co (P)
 
  Rochester, NY (Marginal)
NEW YORK (Region II)
Genesee Co
Livingston Co
Monroe Co
Ontario Co
Orleans Co
Wayne Co
 
  Sacramento Metro, CA (Severe 15)
CALIFORNIA (Region IX)
El Dorado Co (P)
Placer Co (P)
Sacramento Co
Solano Co (P)
Sutter Co (P)
Yolo Co
 
  San Francisco Bay Area, CA (Marginal)
CALIFORNIA (Region IX)
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)
CALIFORNIA (Region IX)
Fresno Co
Kern Co (P)
Kings Co
Madera Co
Merced Co
San Joaquin Co
Stanislaus Co
Tulare Co
 
  Sheboygan, WI (Moderate)
WISCONSIN (Region V)
Sheboygan Co
 
  Springfield (W. Mass), MA (Moderate)
MASSACHUSETTS (Region I)
Berkshire Co
Franklin Co
Hampden Co
Hampshire Co
 
  St Louis, MO-IL (MO portion) (Moderate)
MISSOURI (Region VII)
Franklin Co
Jefferson Co
St Charles Co
St Louis
St Louis Co
 
  Sutter Co (Sutter Buttes), CA (Marginal)
CALIFORNIA (Region IX)
Sutter Co (P)
 
  Ventura Co, CA (Serious)
CALIFORNIA (Region IX)
Ventura Co (P)
 
  Washington, DC-MD-VA (Moderate)
DISTRICT OF COLUMBIA (Region III)
Entire District
MARYLAND (Region III)
Calvert Co
Charles Co
Frederick Co
Montgomery Co
Prince George's Co
VIRGINIA (Region III)
Alexandria
Arlington Co
Fairfax
Fairfax Co
Falls Church
Loudoun Co
Manassas
Manassas Park
Prince William 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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