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1-Hour Ozone (1979) Maintenance Area (Redesignated from Nonattainment) Area/State/County Report - NAAQS Revoked

As of September 22, 2016
  Allegan Co, MI (Incomplete Data - Maintenance)
MICHIGAN (Region V)
Allegan Co
 
  Atlanta, GA (Severe 15 - Maintenance)
GEORGIA (Region IV)
Cherokee Co
Clayton Co
Cobb Co
Coweta Co
De Kalb Co
Douglas Co
Fayette Co
Forsyth Co
Fulton Co
Gwinnett Co
Henry Co
Paulding Co
Rockdale Co
 
  Beauregard Par, LA (Incomplete Data - Maintenance)
LOUISIANA (Region VI)
Beauregard Par
 
  Birmingham, AL (Marginal - Maintenance)
ALABAMA (Region IV)
Jefferson Co
Shelby Co
 
  Canton, OH (Marginal - Maintenance)
OHIO (Region V)
Stark Co
 
  Charleston, WV (Moderate - Maintenance)
WEST VIRGINIA (Region III)
Kanawha Co
Putnam Co
 
  Charlotte-Gastonia, NC (Moderate - Maintenance)
NORTH CAROLINA (Region IV)
Gaston Co
Mecklenburg Co
 
  Cherokee Co, SC (Marginal - Maintenance)
SOUTH CAROLINA (Region IV)
Cherokee Co
 
  Cincinnati-Hamilton, OH-KY (Moderate - Maintenance)
KENTUCKY (Region IV)
Boone Co
Campbell Co
Kenton Co
OHIO (Region V)
Butler Co
Clermont Co
Hamilton Co
Warren Co
 
  Cleveland-Akron-Lorain, OH (Moderate - Maintenance)
OHIO (Region V)
Ashtabula Co
Cuyahoga Co
Geauga Co
Lake Co
Lorain Co
Medina Co
Portage Co
Summit Co
 
  Clinton Co, OH (Section 185A - Maintenance)
OHIO (Region V)
Clinton Co
 
  Columbiana Co, OH (Incomplete Data - Maintenance)
OHIO (Region V)
Columbiana Co
 
  Columbus, OH (Marginal - Maintenance)
OHIO (Region V)
Delaware Co
Franklin Co
Licking Co
 
  Dayton-Springfield, OH (Moderate - Maintenance)
OHIO (Region V)
Clark Co
Greene Co
Miami Co
Montgomery Co
 
  Denver-Boulder, CO (Section 185A - Maintenance)
COLORADO (Region VIII)
Adams Co (P)
West of Kiowa Creek
Arapahoe Co (P)
West of Kiowa Creek
Boulder Co (P)
Excluding Rocky Mtn. National Park
Broomfield Co
Denver Co
Douglas Co
Jefferson Co
 
  Detroit-Ann Arbor, MI (Moderate - Maintenance)
MICHIGAN (Region V)
Livingston Co
Macomb Co
Monroe Co
Oakland Co
St Clair Co
Washtenaw Co
Wayne Co
 
  Door Co, WI (Rural Transport (Marginal) - Maintenance)
WISCONSIN (Region V)
Door Co
 
  East Kern Co, CA (Serious - Maintenance)
CALIFORNIA (Region IX)
Kern Co (P)
 
  Edmonson Co, KY (Rural Transport (Marginal) - Maintenance)
KENTUCKY (Region IV)
Edmonson Co
 
  Evansville, IN (Marginal - Maintenance)
INDIANA (Region V)
Vanderburgh Co
 
  Flint, MI (Section 185A - Maintenance)
MICHIGAN (Region V)
Genesee Co
 
  Grand Rapids, MI (Moderate - Maintenance)
MICHIGAN (Region V)
Kent Co
Ottawa Co
 
  Grant Par, LA (Incomplete Data - Maintenance)
LOUISIANA (Region VI)
Grant Par
 
  Greenbrier, WV (Marginal - Maintenance)
WEST VIRGINIA (Region III)
Greenbrier Co
 
  Greensboro-Winston-Salem-High Point, NC (Moderate - Maintenance)
NORTH CAROLINA (Region IV)
Davidson Co
Davie Co (P)
Forsyth Co
Guilford Co
 
  Hancock & Waldo Cos, ME (Marginal - Maintenance)
MAINE (Region I)
Hancock Co
Waldo Co
 
  Huntington-Ashland, WV-KY (Moderate - Maintenance)
KENTUCKY (Region IV)
Boyd Co
Greenup Co (P)
WEST VIRGINIA (Region III)
Cabell Co
Wayne Co
 
  Indianapolis, IN (Marginal - Maintenance)
INDIANA (Region V)
Marion Co
 
  Jacksonville, FL (Section 185A - Maintenance)
FLORIDA (Region IV)
Duval Co
 
  Jersey Co, IL (Marginal - Maintenance)
ILLINOIS (Region V)
Jersey Co
 
  Kansas City, MO-KS (Other - Maintenance)
KANSAS (Region VII)
Johnson Co
Wyandotte Co
MISSOURI (Region VII)
Clay Co
Jackson Co
Platte Co
 
  Kent and Queen Anne's Co.s, MD (Marginal - Maintenance)
MARYLAND (Region III)
Kent Co
Queen Annes Co
 
  Kewaunee Co, WI (Moderate - Maintenance)
WISCONSIN (Region V)
Kewaunee Co
 
  Knoxville, TN (Marginal - Maintenance)
TENNESSEE (Region IV)
Knox Co
 
  LaFourche Par, LA (Incomplete Data - Maintenance)
LOUISIANA (Region VI)
Lafourche Par
 
  Lafayette, LA (Section 185A - Maintenance)
LOUISIANA (Region VI)
Lafayette Par
 
  Lake Charles, LA (Marginal - Maintenance)
LOUISIANA (Region VI)
Calcasieu Par
 
  Lexington-Fayette, KY (Marginal - Maintenance)
KENTUCKY (Region IV)
Fayette Co
Scott Co
 
  Louisville, KY-IN (Moderate - Maintenance)
INDIANA (Region V)
Clark Co
Floyd Co
KENTUCKY (Region IV)
Bullitt Co (P)
Jefferson Co
Oldham Co (P)
 
  Manitowoc Co, WI (Moderate - Maintenance)
WISCONSIN (Region V)
Manitowoc Co
 
  Memphis, TN (Marginal - Maintenance)
TENNESSEE (Region IV)
Shelby Co
 
  Miami-Fort Lauderdale-W. Palm Beach, FL (Moderate - Maintenance)
FLORIDA (Region IV)
Broward Co
Miami-Dade Co
Palm Beach Co
 
  Monterey Bay, CA (Moderate - Maintenance)
CALIFORNIA (Region IX)
Monterey Co
San Benito Co
Santa Cruz Co
 
  Muskegon, MI (Moderate - Maintenance)
MICHIGAN (Region V)
Muskegon Co
 
  Nashville, TN (Moderate - Maintenance)
TENNESSEE (Region IV)
Davidson Co
Rutherford Co
Sumner Co
Williamson Co
Wilson Co
 
  New Orleans, LA (Section 185A - Maintenance)
LOUISIANA (Region VI)
Jefferson Par
Orleans Par
St Bernard Par
St Charles Par
 
  Norfolk-Virginia Beach-Newport News (Hampton Roads), VA (Marginal - Maintenance)
VIRGINIA (Region III)
Chesapeake
Hampton
James City Co
Newport News
Norfolk
Poquoson
Portsmouth
Suffolk
Virginia Beach
Williamsburg
York Co
 
  Owensboro, KY (Marginal - Maintenance)
KENTUCKY (Region IV)
Daviess Co
Hancock Co (P)
 
  Paducah, KY (Marginal - Maintenance)
KENTUCKY (Region IV)
Livingston Co (P)
Marshall Co
 
  Parkersburg-Marietta, WV (Moderate - Maintenance)
WEST VIRGINIA (Region III)
Wood Co
 
  Phoenix, AZ (Serious - Maintenance)
ARIZONA (Region IX)
Maricopa Co (P)
Maricopa Association of Governments Urban Planning Area
 
  Pittsburgh-Beaver Valley, PA (Moderate - Maintenance)
PENNSYLVANIA (Region III)
Allegheny Co
Armstrong Co
Beaver Co
Butler Co
Fayette Co
Washington Co
Westmoreland Co
 
  Pointe Coupee Parish, LA (Marginal - Maintenance)
LOUISIANA (Region VI)
Pointe Coupee Par
 
  Portland-Vancouver AQMA, OR-WA (Marginal - Maintenance)
OREGON (Region X)
Clackamas Co (P)
Air Quality Maintenance Area
Multnomah Co (P)
Air Quality Maintenance Area
Washington Co (P)
Air Quality Maintenance Area
WASHINGTON (Region X)
Clark Co (P)
Air Quality Maintenance Area
 
  Preble Co, OH (Section 185A - Maintenance)
OHIO (Region V)
Preble Co
 
  Raleigh-Durham, NC (Moderate - Maintenance)
NORTH CAROLINA (Region IV)
Durham Co
Granville Co (P)
Dutchville Township
Wake Co
 
  Reading, PA (Moderate - Maintenance)
PENNSYLVANIA (Region III)
Berks Co
 
  Richmond, VA (Moderate - Maintenance)
VIRGINIA (Region III)
Charles City Co (P)
Chesterfield Co
Colonial Heights
Hanover Co
Henrico Co
Hopewell
Richmond
 
  Saginaw-Bay City-Midland, MI (Incomplete Data - Maintenance)
MICHIGAN (Region V)
Bay Co
Midland Co
Saginaw Co
 
  Salt Lake City, UT (Moderate - Maintenance)
UTAH (Region VIII)
Davis Co
Salt Lake Co
 
  San Diego, CA (Serious - Maintenance)
CALIFORNIA (Region IX)
San Diego Co
 
  Santa Barbara-Santa Maria-Lompoc, CA (Serious - Maintenance)
CALIFORNIA (Region IX)
Santa Barbara Co
 
  Seattle-Tacoma, WA (Marginal - Maintenance)
WASHINGTON (Region X)
King Co (P)
Pierce Co
Snohomish Co (P)
 
  Sheboygan, WI (Moderate - Maintenance)
WISCONSIN (Region V)
Sheboygan Co
 
  South Bend-Elkhart, IN (Marginal - Maintenance)
INDIANA (Region V)
Elkhart Co
St Joseph Co
 
  St James Par, LA (Incomplete Data - Maintenance)
LOUISIANA (Region VI)
St James Par
 
  St Mary Par, LA (Incomplete Data - Maintenance)
LOUISIANA (Region VI)
St Mary Par
 
  St. Louis, MO-IL (Serious - Maintenance)
ILLINOIS (Region V)
Madison Co
Monroe Co
St Clair Co
MISSOURI (Region VII)
Franklin Co
Jefferson Co
St Charles Co
St Louis
St Louis Co
 
  Steubenville, OH (Section 185A - Maintenance)
OHIO (Region V)
Jefferson Co
 
  Tampa-St. Petersburg-Clearwater, FL (Marginal - Maintenance)
FLORIDA (Region IV)
Hillsborough Co
Pinellas Co
 
  Toledo, OH (Moderate - Maintenance)
OHIO (Region V)
Lucas Co
Wood Co
 
  Victoria, TX (Incomplete Data - Maintenance)
TEXAS (Region VI)
Victoria Co
 
  Walworth Co, WI (Marginal - Maintenance)
WISCONSIN (Region V)
Walworth Co
 
  Youngstown-Warren-Sharon, OH-PA (OH portion) (Marginal - Maintenance)
OHIO (Region V)
Mahoning Co
Trumbull Co

The former 1-hour ozone designations and classifications as of June 15, 2004, are being retained in subpart C of Part 81 for purposes of the anti backsliding provisions of 40 CFR 51.905. 40 CFR 51.905(c) references subpart C of part 81 for the areas affected by the anti-backsliding regulation.


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