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PM-10 (1987) Maintenance Area (Redesignated from Nonattainment) Area/State/County Report

Data is current as of June 30, 2022


  Ajo (Pima County), AZ (Moderate - Maintenance)
ARIZONA (Region IX)
Pima County (P)
 
  Aspen, CO (Moderate - Maintenance)
COLORADO (Region VIII)
Pitkin County (P)
 
  Boise-Northern Ada County, ID (Moderate - Maintenance)
IDAHO (Region X)
Ada County (P)
 
  Bonner Co (Sandpoint), ID (Moderate - Maintenance)
IDAHO (Region X)
Bonner County (P)
 
  Butte, MT (Moderate - Maintenance)
MONTANA (Region VIII)
Silver Bow County (P)
 
  Canon City, CO (Moderate - Maintenance)
COLORADO (Region VIII)
Fremont County (P)
 
  Clairton & 4 Boroughs, PA (Moderate - Maintenance)
PENNSYLVANIA (Region III)
Allegheny County (P)
 
  Clark County, NV (Serious - Maintenance)
NEVADA (Region IX)
Clark County (P)
Las Vegas planning area Hydrographic Area 212
 
  Columbia Falls, MT (Moderate - Maintenance)
MONTANA (Region VIII)
Flathead County (P)
 
  Coso Junction, CA (Moderate - Maintenance)
CALIFORNIA (Region IX)
Inyo County (P)
Searles Valley planning area Hydrologic Unit #18090205
 
  Cuyahoga County, OH (Moderate - Maintenance)
OHIO (Region V)
Cuyahoga County
 
  Denver Metro, CO (Moderate - Maintenance)
COLORADO (Region VIII)
Adams County (P)
Arapahoe County (P)
Boulder County (P)
Broomfield County
Denver County
Douglas County
Jefferson County
 
  Eagle River, AK (Moderate - Maintenance)
ALASKA (Region X)
Anchorage Municipality (P)
Community of Eagle River
 
  East Chicago, IN (Moderate - Maintenance)
INDIANA (Region V)
Lake County (P)
Cities of East Chicago, Hammond, Whiting, and Gary
 
  Follansbee, WV (Moderate - Maintenance)
WEST VIRGINIA (Region III)
Brooke County (P)
 
  Granite City, Nameoki Twsp, IL (Moderate - Maintenance)
ILLINOIS (Region V)
Madison County (P)
 
  Grants Pass, OR (Moderate - Maintenance)
OREGON (Region X)
Josephine County (P)
Urban Growth Boundary
 
  Imperial Valley, CA (Serious - Maintenance)
CALIFORNIA (Region IX)
Imperial County (P)
Imperial Valley planning area
 
  Indian Wells, CA (Moderate - Maintenance)
CALIFORNIA (Region IX)
Kern County (P)
Searles Valley planning area Hydrologic Unit #18090205
 
  Jefferson County, OH (Moderate - Maintenance)
OHIO (Region V)
Jefferson County (P)
Mingo Junction
 
  Juneau, AK (Moderate - Maintenance)
ALASKA (Region X)
Juneau City and Borough (P)
City of Juneau: Mendenhall Valley area
 
  Kalispell, MT (Moderate - Maintenance)
MONTANA (Region VIII)
Flathead County (P)
 
  Kent, WA (Moderate - Maintenance)
WASHINGTON (Region X)
King County (P)
 
  King County, WA (Moderate - Maintenance)
WASHINGTON (Region X)
King County (P)
Seattle
 
  Klamath Falls, OR (Moderate - Maintenance)
OREGON (Region X)
Klamath County (P)
Urban Growth Boundary
 
  LaGrande, OR (Moderate - Maintenance)
OREGON (Region X)
Union County (P)
Urban Growth Boundary
 
  Lake County, OR (Moderate - Maintenance)
OREGON (Region X)
Lake County (P)
Lakeview (Urban Growth Boundary).
 
  Lamar, CO (Moderate - Maintenance)
COLORADO (Region VIII)
Prowers County (P)
 
  Lane County; Eugene/Springfield, OR (Moderate - Maintenance)
OREGON (Region X)
Lane County (P)
Urban Growth Boundary
 
  Libby, MT (Moderate - Maintenance)
MONTANA (Region VIII)
Lincoln County (P)
 
  Los Angeles South Coast Air Basin, CA (Serious - Maintenance)
CALIFORNIA (Region IX)
Los Angeles County (P)
South Coast Air Basin
Orange County
Riverside County (P)
South Coast Air Basin
San Bernardino County (P)
South Coast Air Basin
 
  Lyons Twsp., IL (Moderate - Maintenance)
ILLINOIS (Region V)
Cook County (P)
Lyons Township
 
  Mammoth Lake, CA (Moderate - Maintenance)
CALIFORNIA (Region IX)
Mono County (P)
 
  Medford-Ashland, OR (Moderate - Maintenance)
OREGON (Region X)
Jackson County (P)
 
  Missoula, MT (Moderate - Maintenance)
MONTANA (Region VIII)
Missoula County (P)
 
  Mohave County, AZ (Moderate - Maintenance)
ARIZONA (Region IX)
Mohave County (P)
Bullhead City
 
  Mun. of Guaynabo, PR (Moderate - Maintenance)
PUERTO RICO (Region II)
Guaynabo Municipio (P)
 
  New Haven County, CT (Moderate - Maintenance)
CONNECTICUT (Region I)
New Haven County (P)
City of New Haven
 
  Ogden, UT (Moderate - Maintenance)
UTAH (Region VIII)
Weber County (P)
City of Ogden
 
  Oglesby, IL (Moderate - Maintenance)
ILLINOIS (Region V)
LaSalle County (P)
 
  Olmsted County, MN (Moderate - Maintenance)
MINNESOTA (Region V)
Olmsted County (P)
 
  Olympia, Tumwater, Lacey, WA (Moderate - Maintenance)
WASHINGTON (Region X)
Thurston County (P)
Cities of Olympia, Tumwater, and Lacey
 
  Pagosa Springs, CO (Moderate - Maintenance)
COLORADO (Region VIII)
Archuleta County (P)
 
  Payson, AZ (Moderate - Maintenance)
ARIZONA (Region IX)
Gila County (P)
 
  Pierce County, WA (Moderate - Maintenance)
WASHINGTON (Region X)
Pierce County (P)
Tacoma
 
  Pinehurst, ID (Moderate - Maintenance)
IDAHO (Region X)
Shoshone County (P)
City of Pinehurst
 
  Portneuf Valley, ID (Moderate - Maintenance)
IDAHO (Region X)
Bannock County (P)
Power County (P)
 
  Presque Isle, ME (Moderate - Maintenance)
MAINE (Region I)
Aroostook County (P)
City of Presque Isle
 
  Ramsey County, MN (Moderate - Maintenance)
MINNESOTA (Region V)
Ramsey County (P)
St. Paul
 
  Sacramento County, CA (Moderate - Maintenance)
CALIFORNIA (Region IX)
Sacramento County
 
  Salt Lake County, UT (Moderate - Maintenance)
UTAH (Region VIII)
Salt Lake County
 
  San Joaquin Valley Air Basin, CA (Serious - Maintenance)
CALIFORNIA (Region IX)
Fresno County
Kern County (P)
Kings County
Madera County
Merced County
San Joaquin County
Stanislaus County
Tulare County
 
  Sheridan, WY (Moderate - Maintenance)
WYOMING (Region VIII)
Sheridan County (P)
City of Sheridan
 
  Shoshone County, ID (Moderate - Maintenance)
IDAHO (Region X)
Shoshone County (P)
excluding Pinehurst
 
  Southeast Chicago, IL (Moderate - Maintenance)
ILLINOIS (Region V)
Cook County (P)
 
  Spokane County, WA (Moderate - Maintenance)
WASHINGTON (Region X)
Spokane County (P)
 
  Steamboat Springs, CO (Moderate - Maintenance)
COLORADO (Region VIII)
Routt County (P)
Steamboat Springs
 
  Telluride, CO (Moderate - Maintenance)
COLORADO (Region VIII)
San Miguel County (P)
 
  Utah County, UT (Moderate - Maintenance)
UTAH (Region VIII)
Utah County
 
  Vermillion County, IN (Moderate - Maintenance)
INDIANA (Region V)
Vermillion County (P)
 
  Wallula, WA (Serious - Maintenance)
WASHINGTON (Region X)
Walla Walla County (P)
Wallula
 
  Washoe County, NV (Serious - Maintenance)
NEVADA (Region IX)
Washoe County (P)
Reno planning area Hydrographic area 87
 
  Wayne County, MI (Moderate - Maintenance)
MICHIGAN (Region V)
Wayne County (P)
Detroit
 
  Weirton, WV (Moderate - Maintenance)
WEST VIRGINIA (Region III)
Brooke County (P)
The city of Weirton
Hancock County (P)
The city of Weirton
 
  Yakima County, WA (Moderate - Maintenance)
WASHINGTON (Region X)
Yakima County (P)


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