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Technology Transfer Network / NAAQS
Ozone Implementation

1995-1997 Counties Not Meeting the 1997 8-hour Ozone Standard

Information provided for informational purposes onlyNote: EPA no longer updates this information, but it may be useful as a reference or resource.

This list is based on 1995 to 1997 ozone data (except as noted below). Please note that EPA will not designate ozone nonattainment areas until 2000, and these designations will be based on the data that is most recently available at that time. It is very likely that the list that EPA will use to make designations will be different from this list.

Alabama        Clay Co
Alabama        Jefferson Co
Alabama        Shelby Co

Arizona        Maricopa Co

Arkansas       Crittenden Co

California     Alameda Co
California     Amador Co
California     Calaveras Co
California     El Dorado Co
California     Fresno Co
California     Imperial Co
California     Kern Co
California     Kings Co
California     Los Angeles Co
California     Madera Co*
California     Mariposa Co
California     Merced Co
California     Nevada Co
California     Orange Co
California     Placer Co
California     Riverside Co
California     Sacramento Co
California     San Bernardino
California     San Diego Co
California     San Joaquin Co
California     Santa Barbara C
California     Santa Clara Co
California     Shasta Co
California     Stanislaus Co
California     Tulare Co
California     Tuolumne Co
California     Ventura Co

Connecticut    Fairfield Co
Connecticut    Hartford Co
Connecticut    Litchfield Co
Connecticut    Middlesex Co
Connecticut    New Haven Co
Connecticut    New London Co
Connecticut    Tolland Co

Delaware       Kent Co
Delaware       New Castle Co
Delaware       Sussex Co

District of Columbia     Washington

Georgia        De Kalb Co
Georgia        Fulton Co
Georgia        Gwinnett Co
Georgia        Paulding Co**
Georgia        Richmond Co
Georgia        Rockdale Co

Illinois       Cook Co
Illinois       Kane Co
Illinois       Lake Co
Illinois       Madison Co
Illinois       McHenry Co

Indiana        Allen Co
Indiana        Clark Co
Indiana        Elkhart Co
Indiana        Floyd Co
Indiana        Hamilton Co
Indiana        Hancock Co
Indiana        La Porte Co
Indiana        Lake Co
Indiana        Madison Co
Indiana        Marion Co
Indiana        Porter Co
Indiana        St. Joseph Co
Indiana        Vanderburgh Co
Indiana        Vigo Co
Indiana        Warrick Co

Kansas         Wyandotte Co

Kentucky       Boyd Co
Kentucky       Bullitt Co
Kentucky       Campbell Co
Kentucky       Daviess Co
Kentucky       Fayette Co
Kentucky       Hancock Co
Kentucky       Henderson Co
Kentucky       Jefferson Co
Kentucky       Kenton Co
Kentucky       Livingston Co
Kentucky       Oldham Co

Louisiana      Ascension Par
Louisiana      Calcasieu Par
Louisiana      East Baton Roug
Louisiana      Iberville Par
Louisiana      Lafourche Par
Louisiana      Livingston Par
Louisiana      West Baton Roug

Maine          Cumberland Co
Maine          Knox Co
Maine          Sagadahoc Co
Maine          York Co

Maryland       Anne Arundel Co
Maryland       Baltimore city
Maryland       Baltimore Co
Maryland       Calvert Co**
Maryland       Carroll Co
Maryland       Cecil Co
Maryland       Charles Co
Maryland       Harford Co
Maryland       Kent Co
Maryland       Montgomery Co
Maryland       Prince George's

Massachusetts  Barnstable Co
Massachusetts  Bristol Co
Massachusetts  Essex Co
Massachusetts  Hampden Co
Massachusetts  Hampshire Co
Massachusetts  Middlesex Co
Massachusetts  Worcester Co

Michigan       Allegan Co
Michigan       Benzie Co
Michigan       Berrien Co
Michigan       Cass Co
Michigan       Kalamazoo Co
Michigan       Kent Co
Michigan       Macomb Co
Michigan       Mason Co
Michigan       Muskegon Co
Michigan       St. Clair Co
Michigan       Wayne Co

Mississippi    De Soto Co
Mississippi    Jackson Co

Missouri       Clay Co
Missouri       Jefferson Co
Missouri       Platte Co
Missouri       St. Charles Co
Missouri       St. Louis Co
Missouri       Ste. Genevieve**

New Hampshire  Hillsborough Co
New Hampshire  Rockingham Co

New Jersey     Atlantic Co
New Jersey     Bergen Co
New Jersey     Camden Co
New Jersey     Cumberland Co
New Jersey     Essex Co
New Jersey     Gloucester Co
New Jersey     Hudson Co
New Jersey     Hunterdon Co
New Jersey     Mercer Co
New Jersey     Middlesex Co
New Jersey     Monmouth Co
New Jersey     Morris Co
New Jersey     Ocean Co

New York       Bronx Co
New York       Chautauqua Co
New York       Dutchess Co
New York       Essex Co
New York       Jefferson Co
New York       Kings Co*
New York       Niagara Co
New York       Orange Co
New York       Putnam Co
New York       Queens Co
New York       Richmond Co
New York       Suffolk Co
New York       Westchester Co

North Carolina Caswell Co
North Carolina Chatham Co
North Carolina Cumberland Co*
North Carolina Davie Co**
North Carolina Forsyth Co
North Carolina Franklin Co
North Carolina Granville Co
North Carolina Guilford Co
North Carolina Haywood Co
North Carolina Johnston Co
North Carolina Lincoln Co
North Carolina Mecklenburg Co
North Carolina Northampton Co**
North Carolina Pitt Co
North Carolina Rowan Co
North Carolina Wake Co

Ohio           Allen Co
Ohio           Ashtabula Co
Ohio           Butler Co
Ohio           Clark Co
Ohio           Clermont Co
Ohio           Clinton Co
Ohio           Cuyahoga Co
Ohio           Franklin Co
Ohio           Hamilton Co
Ohio           Knox Co
Ohio           Lake Co
Ohio           Licking Co
Ohio           Logan Co
Ohio           Lorain Co
Ohio           Lucas Co
Ohio           Madison Co
Ohio           Mahoning Co
Ohio           Medina Co
Ohio           Miami Co
Ohio           Montgomery Co
Ohio           Portage Co
Ohio           Preble Co
Ohio           Stark Co
Ohio           Summit Co
Ohio           Trumbull Co
Ohio           Warren Co*
Ohio           Washington Co

Oklahoma       Tulsa Co

Pennsylvania   Allegheny Co
Pennsylvania   Beaver Co
Pennsylvania   Berks Co
Pennsylvania   Blair Co
Pennsylvania   Bucks Co
Pennsylvania   Cambria Co
Pennsylvania   Dauphin Co
Pennsylvania   Delaware Co
Pennsylvania   Erie Co**
Pennsylvania   Franklin Co**
Pennsylvania   Lackawanna Co
Pennsylvania   Lancaster Co
Pennsylvania   Lehigh Co
Pennsylvania   Luzerne Co
Pennsylvania   Mercer Co
Pennsylvania   Montgomery Co
Pennsylvania   Northampton Co
Pennsylvania   Philadelphia Co
Pennsylvania   Washington Co
Pennsylvania   Westmoreland Co
Pennsylvania   York Co

Rhode Island   Kent Co
Rhode Island   Providence Co

South Carolina Anderson Co
South Carolina Chester Co
South Carolina Spartanburg Co

Tennessee      Anderson Co
Tennessee      Blount Co
Tennessee      Davidson Co
Tennessee      Hamilton Co
Tennessee      Jefferson Co
Tennessee      Knox Co
Tennessee      Sevier Co
Tennessee      Shelby Co
Tennessee      Sullivan Co
Tennessee      Sumner Co
Tennessee      Williamson Co**
Tennessee      Wilson Co

Texas          Bexar Co
Texas          Brazoria Co
Texas          Collin Co
Texas          Dallas Co
Texas          Denton Co
Texas          Galveston Co
Texas          Gregg Co
Texas          Harris Co
Texas          Jefferson Co
Texas          Orange Co
Texas          Smith Co
Texas          Tarrant Co

Utah           Salt Lake Co

Virginia       Alexandria city**
Virginia       Arlington Co
Virginia       Charles City Co
Virginia       Chesterfield Co
Virginia       Fairfax Co
Virginia       Hampton city
Virginia       Hanover Co
Virginia       Henrico Co
Virginia       Madison Co
Virginia       Prince William
Virginia       Stafford Co

West Virginia  Cabell Co
West Virginia  Hancock Co
West Virginia  Ohio Co
West Virginia  Wood Co

Wisconsin      Door Co
Wisconsin      Kenosha Co
Wisconsin      Kewaunee Co
Wisconsin      Manitowoc Co
Wisconsin      Milwaukee Co
Wisconsin      Ozaukee Co
Wisconsin      Racine Co
Wisconsin      Rock Co
Wisconsin      Sheboygan Co

This list is based on 1995 to 1997 ozone data (except as noted below). Please note that EPA will not designate ozone nonattainment areas until 2000, and these designations will be based on the data that is most recently available at that time. It is very likely that the list that EPA will use to make designations will be different from this list.

In a few cases potential nonattainment counties are included on
this list based on less than 3 years  of data. In some cases
where monitoring has been discontinued, data from an earlier year
was used. No monitoring site was used which had only one year of

*    The county was selected based on 3 years worth of data
     showing nonattainment for 1994 to 1996.  The historical data
     was used because the monitor has incomplete data in 1997.

**   The county was selected based on 2 years of data.

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