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8-Hour Ozone (2015) Designated Area Area/State/County Report

Data is current as of February 29, 2024


  Allegan County, MI (Moderate - Nonattainment)
MICHIGAN (Region V)
Allegan County (P)
 
  Amador County, CA (Marginal - Nonattainment)
CALIFORNIA (Region IX)
Amador County
 
  Atlanta, GA (Marginal - Maintenance)
GEORGIA (Region IV)
Bartow County
Clayton County
Cobb County
DeKalb County
Fulton County
Gwinnett County
Henry County
 
  Baltimore, MD (Moderate - Nonattainment)
MARYLAND (Region III)
Anne Arundel County
Baltimore County
Baltimore city
Carroll County
Harford County
Howard County
 
  Berrien County, MI (Moderate - Nonattainment)
MICHIGAN (Region V)
Berrien County
 
  Butte County, CA (Marginal - Nonattainment)
CALIFORNIA (Region IX)
Butte County
 
  Calaveras County, CA (Marginal - Nonattainment)
CALIFORNIA (Region IX)
Calaveras County
 
  Chicago, IL-IN-WI (Moderate - Nonattainment)
ILLINOIS (Region V)
Cook County
DuPage County
Grundy County (P)
Aux Sable Township and Goose Lake Township
Kane County
Kendall County (P)
Oswego Township
Lake County
McHenry County
Will County
INDIANA (Region V)
Lake County (P)
Porter County (P)
WISCONSIN (Region V)
Kenosha County (P)
 
  Cincinnati, OH-KY (Moderate - Maintenance)
KENTUCKY (Region IV)
Boone County (P)
Campbell County (P)
Kenton County (P)
OHIO (Region V)
Butler County
Clermont County
Hamilton County
Warren County
 
  Cleveland, OH (Moderate - Nonattainment)
OHIO (Region V)
Cuyahoga County
Geauga County
Lake County
Lorain County
Medina County
Portage County
Summit County
 
  Columbus, OH (Marginal - Maintenance)
OHIO (Region V)
Delaware County
Fairfield County
Franklin County
Licking County
 
  Dallas-Fort Worth, TX (Moderate - Nonattainment)
TEXAS (Region VI)
Collin County
Dallas County
Denton County
Ellis County
Johnson County
Kaufman County
Parker County
Tarrant County
Wise County
 
  Denver Metro/North Front Range, CO (Moderate - Nonattainment)
COLORADO (Region VIII)
Adams County
Arapahoe County
Boulder County
Broomfield County
Denver County
Douglas County
Jefferson County
Larimer County (P)
Weld County
 
  Detroit, MI (Moderate - Maintenance)
MICHIGAN (Region V)
Livingston County
Macomb County
Monroe County
Oakland County
St. Clair County
Washtenaw County
Wayne County
 
  Door County, WI (Marginal (Rural Transport) - Maintenance)
WISCONSIN (Region V)
Door County (P)

Newport State Park Boundary

 
  Door County-Revised, WI (Marginal (Rural Transport) - Maintenance)
WISCONSIN (Region V)
Door County (P)
 
  El Paso-Las Cruces, TX-NM (Marginal - Nonattainment)
NEW MEXICO (Region VI)
Dona Ana County (P)
TEXAS (Region VI)
El Paso County
 
  Greater Connecticut, CT (Moderate - Nonattainment)
CONNECTICUT (Region I)
Hartford County
Litchfield County
New London County
Tolland County
Windham County
 
  Houston-Galveston-Brazoria, TX (Moderate - Nonattainment)
TEXAS (Region VI)
Brazoria County
Chambers County
Fort Bend County
Galveston County
Harris County
Montgomery County
 
  Imperial County, CA (Marginal - Nonattainment)
CALIFORNIA (Region IX)
Imperial County
 
  Kern County (Eastern Kern), CA (Serious - Nonattainment)
CALIFORNIA (Region IX)
Kern County (P)
 
  Las Vegas, NV (Moderate - Nonattainment)
NEVADA (Region IX)
Clark County (P)
That portion of Clark County that lies in hydrographic area 212
 
  Los Angeles-San Bernardino Counties (West Mojave Desert), CA (Severe 15 - Nonattainment)
CALIFORNIA (Region IX)
Los Angeles County (P)
San Bernardino County (P)
 
  Los Angeles-South Coast Air Basin, CA (Extreme - Nonattainment)
CALIFORNIA (Region IX)
Los Angeles County (P)
Orange County
Riverside County (P)
San Bernardino County (P)
 
  Louisville, KY-IN (Marginal - Maintenance)
INDIANA (Region V)
Clark County
Floyd County
KENTUCKY (Region IV)
Bullitt County
Jefferson County
Oldham County
 
  Manitowoc County, WI (Marginal - Maintenance)
WISCONSIN (Region V)
Manitowoc County (P)
 
  Mariposa County, CA (Moderate - Nonattainment)
CALIFORNIA (Region IX)
Mariposa County
 
  Milwaukee, WI (Moderate - Nonattainment)
WISCONSIN (Region V)
Milwaukee County
Ozaukee County
Racine County (P)
Washington County (P)
Waukesha County (P)
 
  Morongo Band of Mission Indians, CA (Serious - Nonattainment)
CALIFORNIA (Region IX)
Riverside County (P)
 
  Muskegon County, MI (Moderate - Nonattainment)
MICHIGAN (Region V)
Muskegon County (P)
 
  Nevada County (Western part), CA (Serious - Nonattainment)
CALIFORNIA (Region IX)
Nevada County (P)
 
  New York-Northern New Jersey-Long Island, NY-NJ-CT (Moderate - Nonattainment)
CONNECTICUT (Region I)
Fairfield County
Middlesex County
New Haven County
NEW JERSEY (Region II)
Bergen County
Essex County
Hudson County
Hunterdon County
Middlesex County
Monmouth County
Morris County
Passaic County
Somerset County
Sussex County
Union County
Warren County
NEW YORK (Region II)
Bronx County
Kings County
Nassau County
New York County
Queens County
Richmond County
Rockland County
Suffolk County
Westchester County
 
  Northern Wasatch Front, UT (Moderate - Nonattainment)
UTAH (Region VIII)
Davis County
Salt Lake County
Tooele County (P)
Weber County (P)
 
  Pechanga Band of Luiseno Mission Indians of the Pechanga Reservation, CA (Moderate - Nonattainment)
CALIFORNIA (Region IX)
Riverside County (P)
San Diego County (P)
 
  Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE (Moderate - Nonattainment)
DELAWARE (Region III)
New Castle County
MARYLAND (Region III)
Cecil County
NEW JERSEY (Region II)
Atlantic County
Burlington County
Camden County
Cape May County
Cumberland County
Gloucester County
Mercer County
Ocean County
Salem County
PENNSYLVANIA (Region III)
Bucks County
Chester County
Delaware County
Montgomery County
Philadelphia County
 
  Phoenix-Mesa, AZ (Moderate - Nonattainment)
ARIZONA (Region IX)
Gila County (P)
Maricopa County (P)
Pinal County (P)
 
  Riverside County (Coachella Valley), CA (Severe 15 - Nonattainment)
CALIFORNIA (Region IX)
Riverside County (P)
 
  Sacramento Metro, CA (Serious - Nonattainment)
CALIFORNIA (Region IX)
El Dorado County (P)
Placer County (P)
Sacramento County
Solano County (P)
Sutter County (P)
Yolo County
 
  San Antonio, TX (Moderate - Nonattainment)
TEXAS (Region VI)
Bexar County
 
  San Diego County, CA (Severe 15 - Nonattainment)
CALIFORNIA (Region IX)
San Diego County (P)
 
  San Francisco Bay Area, CA (Marginal - Nonattainment)
CALIFORNIA (Region IX)
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)
CALIFORNIA (Region IX)
Fresno County
Kern County (P)
Kings County
Madera County
Merced County
San Joaquin County
Stanislaus County
Tulare County
 
  San Luis Obispo (Eastern part), CA (Marginal - Nonattainment)
CALIFORNIA (Region IX)
San Luis Obispo County (P)
 
  Sheboygan County, WI (Moderate - Nonattainment)
WISCONSIN (Region V)
Sheboygan County (P)
 
  Southern Wasatch Front, UT (Marginal - Nonattainment)
UTAH (Region VIII)
Utah County (P)
 
  St. Louis, MO-IL (Moderate - Nonattainment)
ILLINOIS (Region V)
Madison County
Monroe County
St. Clair County
MISSOURI (Region VII)
Franklin County (P)
Boles Township
Jefferson County
St. Charles County
St. Louis County
St. Louis city
 
  Sutter Buttes, CA (Marginal - Nonattainment)
CALIFORNIA (Region IX)
Sutter County (P)
That portion of the Sutter Buttes mountain range at or above 2,000 feet in elevation
 
  Tuolumne County, CA (Marginal - Nonattainment)
CALIFORNIA (Region IX)
Tuolumne County
 
  Tuscan Buttes, CA (Marginal (Rural Transport) - Nonattainment)
CALIFORNIA (Region IX)
Tehama County (P)
Those portions of the immediate Tuscan Buttes area at or above 1,800 feet in elevation
 
  Uinta Basin, UT (Marginal - Nonattainment)
UTAH (Region VIII)
Duchesne County (P)
Uintah County (P)
 
  Ventura County, CA (Serious - Nonattainment)
CALIFORNIA (Region IX)
Ventura County (P)
That part of Ventura County excluding the Channel Islands of Anacapa and San Nicolas Islands
 
  Washington, DC-MD-VA (Moderate - Nonattainment)
DISTRICT OF COLUMBIA (Region III)
District of Columbia
MARYLAND (Region III)
Calvert County
Charles County
Frederick County
Montgomery County
Prince George's County
VIRGINIA (Region III)
Alexandria city
Arlington County
Fairfax County
Fairfax city
Falls Church city
Loudoun County
Manassas Park city
Manassas city
Prince William County
 
  Yuma, AZ (Marginal - Nonattainment)
ARIZONA (Region IX)
Yuma County (P)


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