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Green Book Nonattainment Areas

Carbon Monoxide (1971) Maintenance Area (Redesignated from Nonattainment) State/Area/County Report

As of June 17, 2016
ALASKA (Region X)
  Anchorage, AK (Serious - Maintenance)
Anchorage Municipality (P)
Portion of Anchorage urban area
  Fairbanks, AK (Serious - Maintenance)
Fairbanks North Star Borough (P)
Portion of Fairbanks urban area
  Phoenix, AZ (Serious - Maintenance)
Maricopa Co (P)
  Tucson, AZ (Not Classified - Maintenance)
Pima Co (P)
Portion of Tucson urban area
  Bakersfield, CA (Not Classified - Maintenance)
Kern Co (P)
  Chico, CA (Moderate <= 12.7ppm - Maintenance)
Butte Co (P)
  Fresno, CA (Moderate > 12.7ppm - Maintenance)
Fresno Co (P)
Fresno Urbanized Area (11/20/85, 50 FR 47735)
  Lake Tahoe North Shore, CA (Not Classified - Maintenance)
Placer Co (P)
  Lake Tahoe South Shore, CA (Moderate <= 12.7ppm - Maintenance)
El Dorado Co (P)
  Los Angeles-South Coast Air Basin, CA (Serious - Maintenance)
Los Angeles Co (P)
Orange Co
Riverside Co (P)
San Bernardino Co (P)
  Modesto, CA (Moderate <= 12.7ppm - Maintenance)
Stanislaus Co (P)
  Sacramento, CA (Moderate <= 12.7ppm - Maintenance)
Placer Co (P)
Sacramento Co (P)
Yolo Co (P)
  San Diego, CA (Moderate <= 12.7ppm - Maintenance)
San Diego Co (P)
  San Francisco-Oakland-San Jose, CA (Moderate <= 12.7ppm - Maintenance)
Alameda Co (P)
Contra Costa Co (P)
Marin Co (P)
Napa Co (P)
San Francisco Co
San Mateo Co (P)
Santa Clara Co (P)
Solano Co (P)
Sonoma Co (P)
  Stockton, CA (Moderate <= 12.7ppm - Maintenance)
San Joaquin Co (P)
  Colorado Springs, CO (Moderate <= 12.7ppm - Maintenance)
El Paso Co (P)
Teller Co (P)
  Denver-Boulder, CO (Serious - Maintenance)
Adams Co (P)
Denver Metro Area
Arapahoe Co (P)
Denver Metro Area
Boulder Co (P)
Denver Metro Area
Broomfield Co
Denver Co
Douglas Co (P)
Denver Metro Area
Jefferson Co (P)
Denver Metro Area
  Fort Collins, CO (Moderate <= 12.7ppm - Maintenance)
Larimer Co (P)
  Greeley, CO (Not Classified - Maintenance)
Weld Co (P)
  Longmont, CO (Moderate <= 12.7ppm - Maintenance)
Boulder Co (P)
Portion of Longmont
Weld Co (P)
Portion of Longmont
  Hartford-New Britain-Middletown, CT (Moderate <= 12.7ppm - Maintenance)
Hartford Co (P)
Litchfield Co (P)
Plymouth Town
Middlesex Co (P)
Tolland Co (P)
  New Haven-Meriden-Waterbury, CT (Not Classified - Maintenance)
Fairfield Co (P)
Shelton City
Litchfield Co (P)
Bethlehem Town, Thomaston Town, Watertown, Woodbury Town.
New Haven Co
  New York-N. New Jersey-Long Island, NY-NJ-CT (Moderate > 12.7ppm - Maintenance)
Fairfield Co (P)
All cities and townships except Shelton city
Litchfield Co (P)
Bridgewater town, New Milford town
  Washington, DC-MD-VA (Moderate <= 12.7ppm - Maintenance)
Entire District
IDAHO (Region X)
  Boise-Northern Ada County, ID (Not Classified - Maintenance)
Ada Co (P)
Northern half of Ada Co
INDIANA (Region V)
  East Chicago, IN (Not Classified - Maintenance)
Lake Co (P)
  Indianapolis, IN (Not Classified - Maintenance)
Marion Co (P)
  Baltimore, MD (Moderate <= 12.7ppm - Maintenance)
Baltimore (City) (P)
  Washington, DC-MD-VA (Moderate <= 12.7ppm - Maintenance)
Montgomery Co (P)
Election Districts 4, 7, 13
Prince George's Co (P)
Election Districts 2, 6, 12, 16, 17, 18
  Boston, MA (Moderate <= 12.7ppm - Maintenance)
Middlesex Co (P)
Cities of: Cambridge, Everett, Malden, Medford, and Somerville.
Norfolk Co (P)
Quincy CIty
Suffolk Co (P)
Cities of: Boston, Chelsea, and Revere
  Lowell, MA (Not Classified - Maintenance)
Middlesex Co (P)
Lowell City
  Springfield, MA (Not Classified - Maintenance)
Hampden Co (P)
Springfield City
  Waltham, MA (Not Classified - Maintenance)
Middlesex Co (P)
Waltham City
  Worcester, MA (Not Classified - Maintenance)
Worcester Co (P)
City of Worcester
  Detroit, MI (Not Classified - Maintenance)
Macomb Co (P)
A portion of Detroit
Oakland Co (P)
A portion of Detroit
Wayne Co (P)
A portion of Detroit
  Duluth, MN (Moderate <= 12.7ppm - Maintenance)
St Louis Co (P)
City of Duluth
  Minneapolis-St. Paul, MN (Moderate <= 12.7ppm - Maintenance)
Anoka Co
Carver Co (P)
Dakota Co (P)
Hennepin Co
Ramsey Co
Scott Co (P)
Washington Co (P)
All cities and townships except Denmark Township.
Wright Co (P)
  St. Louis, MO (Not Classified - Maintenance)
St Louis
St Louis Co (P)
The area encompassed by the I-270 and the Mississippi River.
  Billings, MT (Not Classified - Maintenance)
Yellowstone Co (P)
Certain ranges and townships
  Great Falls, MT (Not Classified - Maintenance)
Cascade Co (P)
  Missoula, MT (Moderate <= 12.7ppm - Maintenance)
Missoula Co (P)
NEVADA (Region IX)
  Lake Tahoe, NV (Not Classified - Maintenance)
Carson City (P)
Hydrographic Area 90
Douglas Co (P)
Hydrographic Area 90
Washoe Co (P)
Hydrographic Area 90
  Las Vegas, NV (Serious - Maintenance)
Clark Co (P)
Las Vegas Valley Hydrographic Area 212
  Reno, NV (Moderate <= 12.7ppm - Maintenance)
Washoe Co (P)
Truckee Meadows Hydrographic Area 87
  Manchester, NH (Not Classified - Maintenance)
Hillsborough Co (P)
City of Manchester
  Nashua, NH (Not Classified - Maintenance)
Hillsborough Co (P)
City of Nashua
  Atlantic City, NJ (Not Classified - Maintenance)
Atlantic Co (P)
The City of Atlantic City
  Burlington, NJ (Not Classified - Maintenance)
Burlington Co (P)
City of Burlington
  Freehold, NJ (Not Classified - Maintenance)
Monmouth Co (P)
Borough of Freehold
  Morristown, NJ (Not Classified - Maintenance)
Morris Co (P)
City of Morristown
  New York-N. New Jersey-Long Island, NY-NJ-CT (Moderate > 12.7ppm - Maintenance)
Bergen Co
Essex Co
Hudson Co
Passaic Co (P)
City of Clifton, City of Patterson, City of Passaic
Union Co
  Penns Grove, NJ (Not Classified - Maintenance)
Salem Co (P)
  Perth Amboy, NJ (Not Classified - Maintenance)
Middlesex Co (P)
City of Perth Amboy
  Philadelphia-Camden Co, PA-NJ (Moderate <= 12.7ppm - Maintenance)
Camden Co
  Somerville, NJ (Not Classified - Maintenance)
Somerset Co (P)
Borough of Somerville
  Toms River, NJ (Not Classified - Maintenance)
Ocean Co (P)
City of Toms River
  Trenton, NJ (Not Classified - Maintenance)
Mercer Co (P)
City of Trenton
  Albuquerque, NM (Moderate <= 12.7ppm - Maintenance)
Bernalillo Co
NEW YORK (Region II)
  New York-N. New Jersey-Long Island, NY-NJ-CT (Moderate > 12.7ppm - Maintenance)
Bronx Co
Kings Co
Nassau Co
New York Co
Queens Co
Richmond Co
Westchester Co
  Syracuse, NY (Moderate <= 12.7ppm - Maintenance)
Onondaga Co
  Charlotte, NC (Not Classified - Maintenance)
Mecklenburg Co
  Raleigh-Durham, NC (Moderate <= 12.7ppm - Maintenance)
Durham Co
Wake Co
  Winston-Salem, NC (Moderate <= 12.7ppm - Maintenance)
Forsyth Co
OHIO (Region V)
  Cleveland, OH (Moderate <= 12.7ppm - Maintenance)
Cuyahoga Co
OREGON (Region X)
  Eugene-Springfield, OR (Not Classified - Maintenance)
Lane Co (P)
Air Quality Maintenance Area
  Grants Pass, OR (Moderate <= 12.7ppm - Maintenance)
Josephine Co (P)
Central Business District
  Klamath Falls, OR (Moderate <= 12.7ppm - Maintenance)
Klamath Co (P)
Urban Growth Boundary
  Medford, OR (Moderate <= 12.7ppm - Maintenance)
Jackson Co (P)
Medford-Ashland Urban Growth Boundary
  Portland, OR (Moderate <= 12.7ppm - Maintenance)
Clackamas Co (P)
Portland Metro Service District Boundary
Multnomah Co (P)
Portland Metro Service District Boundary
Washington Co (P)
Portland Metro Service District Boundary
  Salem, OR (Not Classified - Maintenance)
Marion Co (P)
City of Salem
Polk Co (P)
City of Salem
  Philadelphia-Camden Co, PA-NJ (Moderate <= 12.7ppm - Maintenance)
Philadelphia Co (P)
  Pittsburgh, PA (Not Classified - Maintenance)
Allegheny Co (P)
  Memphis, TN (Moderate <= 12.7ppm - Maintenance)
Shelby Co
TEXAS (Region VI)
  El Paso, TX (Moderate <= 12.7ppm - Maintenance)
El Paso Co (P)
Portion of the City Limits of El Paso
UTAH (Region VIII)
  Ogden, UT (Moderate <= 12.7ppm - Maintenance)
Weber Co (P)
City of Ogden
  Provo, UT (Moderate > 12.7ppm - Maintenance)
Utah Co (P)
City of Provo
  Salt Lake City, UT (Not Classified - Maintenance)
Salt Lake Co (P)
Salt Lake City
  Washington, DC-MD-VA (Moderate <= 12.7ppm - Maintenance)
Arlington Co
  Seattle-Tacoma, WA (Moderate > 12.7ppm - Maintenance)
King Co (P)
Pierce Co (P)
Snohomish Co (P)
  Spokane, WA (Serious - Maintenance)
Spokane Co (P)
  Vancouver, WA (Moderate <= 12.7ppm - Maintenance)
Clark Co (P)
  Yakima, WA (Not Classified - Maintenance)
Yakima Co (P)
Portion of the Central Business District

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