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

Data is current as of September 30, 2018
View Notes


Area Name   (Category/Classification)      (P) Partial County





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

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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