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

Data is current as of November 30, 2022


  Ada County; Boise, ID (Moderate - Maintenance)
IDAHO (Region X)
Ada County (P)
 
  Adams, Denver, and Boulder Counties; Denver Metropolitan area, CO (Moderate - Maintenance)
COLORADO (Region VIII)
Adams County (P)
Arapahoe County (P)
Boulder County (P)
Broomfield County
Denver County
Douglas County
Jefferson County
 
  Allegheny County; Liberty, Lincoln, Port Vue, Glassport, Clairton, PA (Moderate - Maintenance)
PENNSYLVANIA (Region III)
Allegheny County (P)
 
  Anchorage; Eagle River, AK (Moderate - Maintenance)
ALASKA (Region X)
Anchorage Municipality (P)
Community of Eagle River
 
  Archuleta County; Pagosa Springs, CO (Moderate - Maintenance)
COLORADO (Region VIII)
Archuleta County (P)
 
  Aroostock County; City of Presque Isle, ME (Moderate - Maintenance)
MAINE (Region I)
Aroostook County (P)
City of Presque Isle
 
  Bonner County; The Sandpoint Area, ID (Moderate - Maintenance)
IDAHO (Region X)
Bonner County (P)
 
  Brooke; Follansbee area, WV (Moderate - Maintenance)
WEST VIRGINIA (Region III)
Brooke County (P)
 
  Clark County; Las Vegas planning area, NV (Serious - Maintenance)
NEVADA (Region IX)
Clark County (P)
Las Vegas planning area Hydrographic Area 212
 
  Cook County; Lyons Township, IL (Moderate - Maintenance)
ILLINOIS (Region V)
Cook County (P)
Lyons Township
 
  Cook County; Southeast Chicago, IL (Moderate - Maintenance)
ILLINOIS (Region V)
Cook 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
 
  Flathead County; Columbia Falls and vicinity, MT (Moderate - Maintenance)
MONTANA (Region VIII)
Flathead County (P)
 
  Flathead County; Kalispell and vicinity, MT (Moderate - Maintenance)
MONTANA (Region VIII)
Flathead County (P)
 
  Flathead County; Whitefish and vicinity, MT (Moderate - Maintenance)
MONTANA (Region VIII)
Flathead County (P)
 
  Fremont County; Canon City Area, CO (Moderate - Maintenance)
COLORADO (Region VIII)
Fremont County (P)
 
  Gila County (part): Payson, AZ (Moderate - Maintenance)
ARIZONA (Region IX)
Gila County (P)
 
  Hancock and Brooke Counties (Part); The city of Weirton, WV (Moderate - Maintenance)
WEST VIRGINIA (Region III)
Brooke County (P)
The city of Weirton
Hancock County (P)
The city of Weirton
 
  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
 
  Jackson County; Medford-Ashland (including White City), OR (Moderate - Maintenance)
OREGON (Region X)
Jackson County (P)
 
  Jefferson County, OH (Moderate - Maintenance)
OHIO (Region V)
Jefferson County (P)
Mingo Junction
 
  Josephine County; Grants Pass, OR (Moderate - Maintenance)
OREGON (Region X)
Josephine County (P)
Urban Growth Boundary
 
  Juneau; Mendenhall Valley area, AK (Moderate - Maintenance)
ALASKA (Region X)
Juneau City and Borough (P)
City of Juneau: Mendenhall Valley area
 
  King County; Kent, WA (Moderate - Maintenance)
WASHINGTON (Region X)
King County (P)
 
  King County; Seattle, WA (Moderate - Maintenance)
WASHINGTON (Region X)
King County (P)
Seattle
 
  Klamath Falls, OR (Moderate - Maintenance)
OREGON (Region X)
Klamath County (P)
Urban Growth Boundary
 
  LaSalle County; Oglesby, IL (Moderate - Maintenance)
ILLINOIS (Region V)
LaSalle County (P)
 
  Lake County (part); Lakeview, OR (Moderate - Maintenance)
OREGON (Region X)
Lake County (P)
Lakeview (Urban Growth Boundary).
 
  Lake County; Cities of East Chicago, Hammond, Whiting, and Gary, IN (Moderate - Maintenance)
INDIANA (Region V)
Lake County (P)
Cities of East Chicago, Hammond, Whiting, and Gary
 
  Lane County (part); Oakridge, OR (Moderate - Maintenance)
OREGON (Region X)
Lane County (P)
Oakridge (Urban Growth Boundary)
 
  Lane County; Eugene/Springfield, OR (Moderate - Maintenance)
OREGON (Region X)
Lane County (P)
Urban Growth Boundary
 
  Lincoln County; Libby and vicinity, MT (Moderate - Maintenance)
MONTANA (Region VIII)
Lincoln County (P)
 
  Madison County; Granite City Township and Nameoki Township, IL (Moderate - Maintenance)
ILLINOIS (Region V)
Madison County (P)
 
  Missoula, MT (Moderate - Maintenance)
MONTANA (Region VIII)
Missoula County (P)
 
  Mohave County (part); Bullhead City, AZ (Moderate - Maintenance)
ARIZONA (Region IX)
Mohave County (P)
Bullhead City
 
  Mono County; Mammoth Lake planning area, CA (Moderate - Maintenance)
CALIFORNIA (Region IX)
Mono County (P)
 
  Mun. of Guaynabo, PR (Moderate - Maintenance)
PUERTO RICO (Region II)
Guaynabo Municipio (P)
 
  Ogden, UT (Moderate - Maintenance)
UTAH (Region VIII)
Weber County (P)
City of Ogden
 
  Olmsted County, MN (Moderate - Maintenance)
MINNESOTA (Region V)
Olmsted County (P)
 
  Pierce County; Tacoma, WA (Moderate - Maintenance)
WASHINGTON (Region X)
Pierce County (P)
Tacoma
 
  Pima County; Ajo planning area, AZ (Moderate - Maintenance)
ARIZONA (Region IX)
Pima County (P)
 
  Pitkin County; Aspen, CO (Moderate - Maintenance)
COLORADO (Region VIII)
Pitkin County (P)
 
  Power-Bannock Counties; Portneuf Valley Area, ID (Moderate - Maintenance)
IDAHO (Region X)
Bannock County (P)
Power County (P)
 
  Prowers County; Lamar, CO (Moderate - Maintenance)
COLORADO (Region VIII)
Prowers County (P)
 
  Ramsey County, MN (Moderate - Maintenance)
MINNESOTA (Region V)
Ramsey County (P)
St. Paul
 
  Riverside, Los Angeles, Orange, & San Bernardino Counties; 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
 
  Routt County (part); Steamboat Springs, CO (Moderate - Maintenance)
COLORADO (Region VIII)
Routt County (P)
Steamboat Springs
 
  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
 
  San Miguel County; Telluride, CO (Moderate - Maintenance)
COLORADO (Region VIII)
San Miguel County (P)
 
  Sanders County (part); Thompson Falls and vicinity, MT (Moderate - Maintenance)
MONTANA (Region VIII)
Sanders County (P)
 
  Sheridan County; City of Sheridan, WY (Moderate - Maintenance)
WYOMING (Region VIII)
Sheridan County (P)
City of Sheridan
 
  Shoshone County; City of Pinehurst, ID (Moderate - Maintenance)
IDAHO (Region X)
Shoshone County (P)
City of Pinehurst
 
  Shoshone County; Pinehurst Expansion Area, ID (Moderate - Maintenance)
IDAHO (Region X)
Shoshone County (P)
excluding Pinehurst
 
  Silver Bow County; Butte, MT (Moderate - Maintenance)
MONTANA (Region VIII)
Silver Bow County (P)
 
  Spokane County, WA (Moderate - Maintenance)
WASHINGTON (Region X)
Spokane County (P)
 
  Thurston County; Cities of Olympia, Tumwater, and Lacey, WA (Moderate - Maintenance)
WASHINGTON (Region X)
Thurston County (P)
Cities of Olympia, Tumwater, and Lacey
 
  Union County; LaGrande, OR (Moderate - Maintenance)
OREGON (Region X)
Union County (P)
Urban Growth Boundary
 
  Utah County, UT (Moderate - Maintenance)
UTAH (Region VIII)
Utah County
 
  Vermillion County; Part of Clinton Township, IN (Moderate - Maintenance)
INDIANA (Region V)
Vermillion County (P)
 
  Walla Walla County; Wallula, WA (Serious - Maintenance)
WASHINGTON (Region X)
Walla Walla County (P)
Wallula
 
  Washoe County; Reno planning area, 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
 
  Yakima County, WA (Moderate - Maintenance)
WASHINGTON (Region X)
Yakima County (P)


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