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Carbon Monoxide Maintenance Area/State/County Report

As of November 13, 2009



   Albuquerque, NM (Moderate <= 12.7ppm)
NEW MEXICO (Region VI)
Bernalillo Co

   Anchorage, AK (Serious)
ALASKA (Region X)
Anchorage Municipality (P)
Portion of Anchorage urban area

   Atlantic City, NJ (Not Classified)
NEW JERSEY (Region II)
Atlantic Co (P)
The City of Atlantic City

   Bakersfield, CA (Not Classified)
CALIFORNIA (Region IX)
Kern Co (P)

   Baltimore, MD (Moderate <= 12.7ppm)
MARYLAND (Region III)
Baltimore (City) (P)

   Billings, MT (Not Classified)
MONTANA (Region VIII)
Yellowstone Co (P)
Certain ranges and townships

   Boise-Northern Ada County, ID (Not Classified)
IDAHO (Region X)
Ada Co (P)
Northern half of Ada Co

   Boston, MA (Moderate <= 12.7ppm)
MASSACHUSETTS (Region I)
Middlesex Co (P)
Norfolk Co (P)
Quincy CIty
Suffolk Co (P)
Cities of: Boston, Chelsea, and Revere

   Burlington, NJ (Not Classified)
NEW JERSEY (Region II)
Burlington Co (P)
City of Burlington

   Charlotte, NC (Not Classified)
NORTH CAROLINA (Region IV)
Mecklenburg Co

   Chico, CA (Moderate <= 12.7ppm)
CALIFORNIA (Region IX)
Butte Co (P)

   Cleveland, OH (Moderate <= 12.7ppm)
OHIO (Region V)
Cuyahoga Co

   Colorado Springs, CO (Moderate <= 12.7ppm)
COLORADO (Region VIII)
El Paso Co (P)
Teller Co (P)

   Denver-Boulder, CO (Serious)
COLORADO (Region VIII)
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

   Detroit, MI (Not Classified)
MICHIGAN (Region V)
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)
MINNESOTA (Region V)
St Louis Co (P)
City of Duluth

   East Chicago, IN (Not Classified)
INDIANA (Region V)
Lake Co (P)

   El Paso, TX (Moderate <= 12.7ppm)
TEXAS (Region VI)
El Paso Co (P)
Portion of the City Limits of El Paso

   Eugene-Springfield, OR (Not Classified)
OREGON (Region X)
Lane Co (P)
Air Quality Maintenance Area

   Fairbanks, AK (Serious)
ALASKA (Region X)
Fairbanks North Star Borough (P)
Portion of Fairbanks urban area

   Fort Collins, CO (Moderate <= 12.7ppm)
COLORADO (Region VIII)
Larimer Co (P)

   Freehold, NJ (Not Classified)
NEW JERSEY (Region II)
Monmouth Co (P)
Borough of Freehold

   Fresno, CA (Moderate > 12.7ppm)
CALIFORNIA (Region IX)
Fresno Co (P)
Fresno Urbanized Area (11/20/85, 50 FR 47735)

   Grants Pass, OR (Moderate <= 12.7ppm)
OREGON (Region X)
Josephine Co (P)
Central Business District

   Great Falls, MT (Not Classified)
MONTANA (Region VIII)
Cascade Co (P)

   Greeley, CO (Not Classified)
COLORADO (Region VIII)
Weld Co (P)

   Hartford-New Britain-Middletown, CT (Moderate <= 12.7ppm)
CONNECTICUT (Region I)
Hartford Co (P)
Litchfield Co (P)
Plymouth Town
Middlesex Co (P)
Tolland Co (P)

   Indianapolis, IN (Not Classified)
INDIANA (Region V)
Marion Co (P)

   Klamath Falls, OR (Moderate <= 12.7ppm)
OREGON (Region X)
Klamath Co (P)
Urban Growth Boundary

   Lake Tahoe North Shore, CA (Not Classified)
CALIFORNIA (Region IX)
Placer Co (P)

   Lake Tahoe South Shore, CA (Moderate <= 12.7ppm)
CALIFORNIA (Region IX)
El Dorado Co (P)

   Lake Tahoe, NV (Not Classified)
NEVADA (Region IX)
Carson City (P)
Hydrographic Area 90
Douglas Co (P)
Hydrographic Area 90
Washoe Co (P)
Hydrographic Area 90

   Longmont, CO (Moderate <= 12.7ppm)
COLORADO (Region VIII)
Boulder Co (P)
Portion of Longmont
Weld Co (P)
Portion of Longmont

   Los Angeles South Coast Air Basin, CA (Serious)
CALIFORNIA (Region IX)
Los Angeles Co (P)
Orange Co
Riverside Co (P)
San Bernardino Co (P)

   Lowell, MA (Not Classified)
MASSACHUSETTS (Region I)
Middlesex Co (P)
Lowell City

   Manchester, NH (Not Classified)
NEW HAMPSHIRE (Region I)
Hillsborough Co (P)
City of Manchester

   Medford, OR (Moderate <= 12.7ppm)
OREGON (Region X)
Jackson Co (P)
Medford-Ashland Urban Growth Boundary

   Memphis, TN (Moderate <= 12.7ppm)
TENNESSEE (Region IV)
Shelby Co

   Minneapolis-St Paul, MN (Moderate <= 12.7ppm)
MINNESOTA (Region V)
Anoka Co
Carver Co (P)
Dakota Co (P)
Hennepin Co
Ramsey Co
Scott Co (P)
Washington Co (P)
Wright Co (P)

   Missoula, MT (Moderate <= 12.7ppm)
MONTANA (Region VIII)
Missoula Co (P)

   Modesto, CA (Moderate <= 12.7ppm)
CALIFORNIA (Region IX)
Stanislaus Co (P)

   Morristown, NJ (Not Classified)
NEW JERSEY (Region II)
Morris Co (P)
City of Morristown

   Nashua, NH (Not Classified)
NEW HAMPSHIRE (Region I)
Hillsborough Co (P)
City of Nashua

   New Haven-Meriden-Waterbury, CT (Not Classified)
CONNECTICUT (Region I)
Fairfield Co (P)
Shelton City
Litchfield Co (P)
New Haven Co

   New York-N. New Jersey-Long Island, NY-NJ-CT (Moderate > 12.7ppm)
CONNECTICUT (Region I)
Fairfield Co (P)
All cities and townships except Shelton city
Litchfield Co (P)
Bridgewater town, New Milford town
NEW JERSEY (Region II)
Bergen Co
Essex Co
Hudson Co
Passaic Co (P)
Union Co
NEW YORK (Region II)
Bronx Co
Kings Co
Nassau Co
New York Co
Queens Co
Richmond Co
Westchester Co

   Ogden, UT (Moderate <= 12.7ppm)
UTAH (Region VIII)
Weber Co (P)
City of Ogden

   Penns Grove, NJ (Not Classified)
NEW JERSEY (Region II)
Salem Co (P)

   Perth Amboy, NJ (Not Classified)
NEW JERSEY (Region II)
Middlesex Co (P)
City of Perth Amboy

   Philadelphia-Camden Co, PA-NJ (Moderate <= 12.7ppm)
NEW JERSEY (Region II)
Camden Co
PENNSYLVANIA (Region III)
Philadelphia Co (P)

   Phoenix, AZ (Serious)
ARIZONA (Region IX)
Maricopa Co (P)

   Pittsburgh, PA (Not Classified)
PENNSYLVANIA (Region III)
Allegheny Co (P)

   Portland, OR (Moderate <= 12.7ppm)
OREGON (Region X)
Clackamas Co (P)
Portland Metro Service District Boundary
Multnomah Co (P)
Portland Metro Service District Boundary
Washington Co (P)
Portland Metro Service District Boundary

   Provo, UT (Moderate > 12.7ppm)
UTAH (Region VIII)
Utah Co (P)
City of Provo

   Raleigh-Durham, NC (Moderate <= 12.7ppm)
NORTH CAROLINA (Region IV)
Durham Co
Wake Co

   Reno, NV (Moderate <= 12.7ppm)
NEVADA (Region IX)
Washoe Co (P)
Truckee Meadows Hydrographic Area 87

   Sacramento, CA (Moderate <= 12.7ppm)
CALIFORNIA (Region IX)
Placer Co (P)
Sacramento Co (P)
Yolo Co (P)

   Salem, OR (Not Classified)
OREGON (Region X)
Marion Co (P)
City of Salem
Polk Co (P)
City of Salem

   Salt Lake City, UT (Not Classified)
UTAH (Region VIII)
Salt Lake Co (P)
Salt Lake City

   San Diego, CA (Moderate <= 12.7ppm)
CALIFORNIA (Region IX)
San Diego Co (P)

   San Francisco-Oakland-San Jose, CA (Moderate <= 12.7ppm)
CALIFORNIA (Region IX)
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)

   Seattle-Tacoma, WA (Moderate > 12.7ppm)
WASHINGTON (Region X)
King Co (P)
Pierce Co (P)
Snohomish Co (P)

   Somerville, NJ (Not Classified)
NEW JERSEY (Region II)
Somerset Co (P)
Borough of Somerville

   Spokane, WA (Serious)
WASHINGTON (Region X)
Spokane Co (P)

   Springfield, MA (Not Classified)
MASSACHUSETTS (Region I)
Hampden Co (P)
Springfield City

   St Louis, MO (Not Classified)
MISSOURI (Region VII)
St Louis
St Louis Co (P)

   Stockton, CA (Moderate <= 12.7ppm)
CALIFORNIA (Region IX)
San Joaquin Co (P)

   Syracuse, NY (Moderate <= 12.7ppm)
NEW YORK (Region II)
Onondaga Co

   Toms River, NJ (Not Classified)
NEW JERSEY (Region II)
Ocean Co (P)
City of Toms River

   Trenton, NJ (Not Classified)
NEW JERSEY (Region II)
Mercer Co (P)
City of Trenton

   Tucson, AZ (Not Classified)
ARIZONA (Region IX)
Pima Co (P)
Portion of Tucson urban area

   Vancouver, WA (Moderate <= 12.7ppm)
WASHINGTON (Region X)
Clark Co (P)

   Waltham, MA (Not Classified)
MASSACHUSETTS (Region I)
Middlesex Co (P)
Waltham City

   Washington, DC-MD-VA (Moderate <= 12.7ppm)
DISTRICT OF COLUMBIA (Region III)
Entire District
MARYLAND (Region III)
Montgomery Co (P)
Election Districts 4, 7, 13
Prince George's Co (P)
Election Districts 2, 6, 12, 16, 17, 18
VIRGINIA (Region III)
Alexandria
Arlington Co

   Winston-Salem, NC (Moderate <= 12.7ppm)
NORTH CAROLINA (Region IV)
Forsyth Co

   Worcester, MA (Not Classified)
MASSACHUSETTS (Region I)
Worcester Co (P)
City of Worcester

   Yakima, WA (Not Classified)
WASHINGTON (Region X)
Yakima Co (P)
Portion of the Central Business District


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