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8-Hour Ozone Area/State/County Report With Classifications
for Carbon Monoxide (CO), Particulate Matter-10 microns (PM-10),
1997 and 2006 Particulate Matter-2.5 microns (PM-2.5), and Previous 1-hour Ozone*

As of November 13, 2009

8-Hr Ozone classified area designations for the 1997 standard were effective on June 15, 2004. Thirteen (13) 8-Hr EAC areas were designated attainment on April 15, 2008.
1997 PM-2.5 area designations were effective on April 5, 2005. 2006 PM-2.5 area designations are effective on December 14, 2009.

On June 8, 2007, the United States Court of Appeals vacated the Subpart 1 portion of the Phase 1 Rule (Court Order). The Subpart 1 areas in the Greenbook are listed as "Former Subpart 1" until reclassification of the areas is finalized. Proposed reclassifications were published on January 16, 2009 (74 FR 2936).

View Notes
8-Hr Ozone Area/State/County
(P = Part County)		 1-Hr
Ozone
Nonatt.* 		1-Hr
Ozone
Maint.* 		CO
Nonatt. 		CO
Maint. 		PM-10
Nonatt. 		PM-10
Maint. 		2006
PM-2.5
Nonatt. 		1997
PM-2.5
Nonatt.

Albany-Schenectady-Troy, NY ---- Nonattainment 8-Hour Ozone Category/Classification: Former Subpart 1
NEW YORK (Region II)
Albany Co Marginal              
Greene Co Marginal              
Montgomery Co Marginal              
Rensselaer Co Marginal              
Saratoga Co Marginal              
Schenectady Co Marginal              
Schoharie Co                

Allegan Co, MI ---- Nonattainment 8-Hour Ozone Category/Classification: Former Subpart 1
MICHIGAN (Region V)
Allegan Co   Incomplete Data            

Allentown-Bethlehem-Easton, PA ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
PENNSYLVANIA (Region III)
Carbon Co Marginal              
Lehigh Co Marginal           Nonatt.  
Northampton Co Marginal           Nonatt.  

Altoona, PA ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
PENNSYLVANIA (Region III)
Blair Co Marginal              

Amador and Calaveras Cos (Central Mtn), CA ---- Nonattainment 8-Hour Ozone Category/Classification: Former Subpart 1
CALIFORNIA (Region IX)
Amador Co                
Calaveras Co                

Atlanta, GA ---- Nonattainment 8-Hour Ozone Category/Classification: Moderate
GEORGIA (Region IV)
Barrow Co               Nonatt.
Bartow Co               Nonatt.
Carroll Co               Nonatt.
Cherokee Co   Severe-15           Nonatt.
Clayton Co   Severe-15           Nonatt.
Cobb Co   Severe-15           Nonatt.
Coweta Co   Severe-15           Nonatt.
De Kalb Co   Severe-15           Nonatt.
Douglas Co   Severe-15           Nonatt.
Fayette Co   Severe-15           Nonatt.
Forsyth Co   Severe-15           Nonatt.
Fulton Co   Severe-15           Nonatt.
Gwinnett Co   Severe-15           Nonatt.
Hall Co               Nonatt.
Henry Co   Severe-15           Nonatt.
Newton Co               Nonatt.
Paulding Co   Severe-15           Nonatt.
Rockdale Co   Severe-15           Nonatt.
Spalding Co               Nonatt.
Walton Co               Nonatt.

Baltimore, MD ---- Nonattainment 8-Hour Ozone Category/Classification: Moderate
MARYLAND (Region III)
Anne Arundel Co Severe-15             Nonatt.
Baltimore (City) Severe-15     Moderate <= 12.7ppm       Nonatt.
Baltimore Co Severe-15             Nonatt.
Carroll Co Severe-15             Nonatt.
Harford Co Severe-15             Nonatt.
Howard Co Severe-15             Nonatt.

Baton Rouge, LA ---- Nonattainment 8-Hour Ozone Category/Classification: Moderate
LOUISIANA (Region VI)
Ascension Par Severe-15              
East Baton Rouge Par Severe-15              
Iberville Par Severe-15              
Livingston Par Severe-15              
West Baton Rouge Par Severe-15              

Beaumont-Port Arthur, TX ---- Nonattainment 8-Hour Ozone Category/Classification: Moderate
TEXAS (Region VI)
Hardin Co Serious              
Jefferson Co Serious              
Orange Co Serious              

Benton Harbor, MI ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
MICHIGAN (Region V)
Berrien Co                

Benzie Co, MI ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
MICHIGAN (Region V)
Benzie Co                

Birmingham, AL ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
ALABAMA (Region IV)
Jefferson Co   Marginal         Nonatt. Nonatt.
Shelby Co   Marginal         Nonatt. Nonatt.

Boston-Lawrence-Worcester (E. MA), MA ---- Nonattainment 8-Hour Ozone Category/Classification: Moderate
MASSACHUSETTS (Region I)
Barnstable Co Serious              
Bristol Co Serious              
Dukes Co Serious              
Essex Co Serious              
Middlesex Co Serious     Moderate <= 12.7ppm        
Nantucket Co Serious              
Norfolk Co Serious     Moderate <= 12.7ppm        
Plymouth Co Serious              
Suffolk Co Serious     Moderate <= 12.7ppm        
Worcester Co Serious     Not Classified        

Boston-Manchester-Portsmouth(SE),NH ---- Nonattainment 8-Hour Ozone Category/Classification: Moderate
NEW HAMPSHIRE (Region I)
Hillsborough Co (P) Serious     Not Classified        
Merrimack Co (P) Marginal              
Rockingham Co (P) Serious              
Strafford Co (P) Serious              

Buffalo-Niagara Falls, NY ---- Nonattainment 8-Hour Ozone Category/Classification: Former Subpart 1
NEW YORK (Region II)
Erie Co Marginal              
Niagara Co Marginal              

Canton-Massillon, OH ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
OHIO (Region V)
Stark Co   Marginal         Nonatt. Nonatt.

Cass Co, MI ---- Maintenance 8-Hour Ozone Category/Classification: Marginal
MICHIGAN (Region V)
Cass Co                

Charleston, WV ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
WEST VIRGINIA (Region III)
Kanawha Co   Moderate         Nonatt. Nonatt.
Putnam Co   Moderate         Nonatt. Nonatt.

Charlotte-Gastonia-Rock Hill, NC-SC ---- Nonattainment 8-Hour Ozone Category/Classification: Moderate
NORTH CAROLINA (Region IV)
Cabarrus Co                
Gaston Co   Moderate            
Iredell Co (P)                
Lincoln Co                
Mecklenburg Co   Moderate   Not Classified        
Rowan Co                
Union Co                
SOUTH CAROLINA (Region IV)
York Co (P)                

Chicago-Gary-Lake County, IL-IN ---- Nonattainment 8-Hour Ozone Category/Classification: Moderate
ILLINOIS (Region V)
Cook Co Severe-17         Moderate   Nonatt.
Du Page Co Severe-17             Nonatt.
Grundy Co (P) Severe-17             Nonatt.
Kane Co Severe-17             Nonatt.
Kendall Co (P) Severe-17             Nonatt.
Lake Co Severe-17             Nonatt.
Mc Henry Co Severe-17             Nonatt.
Will Co Severe-17             Nonatt.
INDIANA (Region V)
Lake Co Severe-17     Not Classified   Moderate   Nonatt.
Porter Co Severe-17             Nonatt.

Chico, CA ---- Nonattainment 8-Hour Ozone Category/Classification: Former Subpart 1
CALIFORNIA (Region IX)
Butte Co Section 185A     Moderate <= 12.7ppm     Nonatt.  

Cincinnati-Hamilton, OH-KY-IN ---- Nonattainment 8-Hour Ozone Category/Classification: Former Subpart 1
INDIANA (Region V)
Dearborn Co (P)               Nonatt.
KENTUCKY (Region IV)
Boone Co   Moderate           Nonatt.
Campbell Co   Moderate           Nonatt.
Kenton Co   Moderate           Nonatt.
OHIO (Region V)
Butler Co   Moderate           Nonatt.
Clermont Co   Moderate           Nonatt.
Clinton Co   Section 185A            
Hamilton Co   Moderate           Nonatt.
Warren Co   Moderate           Nonatt.

Clarksville-Hopkinsville, TN-KY ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
KENTUCKY (Region IV)
Christian Co                
TENNESSEE (Region IV)
Montgomery Co                

Clearfield and Indiana Cos, PA ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
PENNSYLVANIA (Region III)
Clearfield Co                
Indiana Co             Nonatt. Nonatt.

Cleveland-Akron-Lorain, OH ---- Maintenance 8-Hour Ozone Category/Classification: Moderate
OHIO (Region V)
Ashtabula Co   Moderate           Nonatt.
Cuyahoga Co   Moderate   Moderate <= 12.7ppm   Moderate Nonatt. Nonatt.
Geauga Co   Moderate            
Lake Co   Moderate         Nonatt. Nonatt.
Lorain Co   Moderate         Nonatt. Nonatt.
Medina Co   Moderate         Nonatt. Nonatt.
Portage Co   Moderate         Nonatt. Nonatt.
Summit Co   Moderate         Nonatt. Nonatt.

Columbus, OH ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
OHIO (Region V)
Delaware Co   Marginal           Nonatt.
Fairfield Co               Nonatt.
Franklin Co   Marginal           Nonatt.
Knox Co                
Licking Co   Marginal           Nonatt.
Madison Co                

Dallas-Fort Worth, TX ---- Nonattainment 8-Hour Ozone Category/Classification: Moderate
TEXAS (Region VI)
Collin Co Serious              
Dallas Co Serious              
Denton Co Serious              
Ellis Co                
Johnson Co                
Kaufman Co                
Parker Co                
Rockwall Co                
Tarrant Co Serious              

Dayton-Springfield, OH ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
OHIO (Region V)
Clark Co   Moderate           Nonatt.
Greene Co   Moderate           Nonatt.
Miami Co   Moderate            
Montgomery Co   Moderate           Nonatt.

Denver-Boulder-Greeley-Ft Collins-Love., CO ---- Nonattainment 8-Hour Ozone Category/Classification: Former Subpart 1
COLORADO (Region VIII)
Adams Co   Section 185A   Serious   Moderate    
Arapahoe Co   Section 185A   Serious   Moderate    
Boulder Co   Section 185A   Serious   Moderate    
Broomfield Co   Section 185A   Serious   Moderate    
Denver Co   Section 185A   Serious   Moderate    
Douglas Co   Section 185A   Serious   Moderate    
Jefferson Co   Section 185A   Serious   Moderate    
Larimer Co (P)       Moderate <= 12.7ppm        
Weld Co (P)       Moderate <= 12.7ppm        

Detroit-Ann Arbor, MI ---- Maintenance 8-Hour Ozone Category/Classification: Marginal
MICHIGAN (Region V)
Lenawee Co                
Livingston Co   Moderate         Nonatt. Nonatt.
Macomb Co   Moderate   Not Classified     Nonatt. Nonatt.
Monroe Co   Moderate         Nonatt. Nonatt.
Oakland Co   Moderate   Not Classified     Nonatt. Nonatt.
St Clair Co   Moderate         Nonatt. Nonatt.
Washtenaw Co   Moderate         Nonatt. Nonatt.
Wayne Co   Moderate   Not Classified   Moderate Nonatt. Nonatt.

Door Co, WI ---- Nonattainment 8-Hour Ozone Category/Classification: Former Subpart 1
WISCONSIN (Region V)
Door Co   Rural Transport (Marginal)            

Erie, PA ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
PENNSYLVANIA (Region III)
Erie Co Marginal              

Essex Co (Whiteface Mtn), NY ---- Nonattainment 8-Hour Ozone Category/Classification: Former Subpart 1
NEW YORK (Region II)
Essex Co (P) Rural Transport (Marginal)              

Evansville, IN ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
INDIANA (Region V)
Vanderburgh Co   Marginal           Nonatt.
Warrick Co               Nonatt.

Flint, MI ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
MICHIGAN (Region V)
Genesee Co   Section 185A            
Lapeer Co                

Fort Wayne, IN ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
INDIANA (Region V)
Allen Co                

Franklin Co, PA ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
PENNSYLVANIA (Region III)
Franklin Co Incomplete Data              

Fredericksburg, VA ---- Maintenance 8-Hour Ozone Category/Classification: Moderate
VIRGINIA (Region III)
Fredericksburg                
Spotsylvania Co                
Stafford Co Severe-15              

Grand Rapids, MI ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
MICHIGAN (Region V)
Kent Co   Moderate            
Ottawa Co   Moderate            

Greater Connecticut, CT ---- Nonattainment 8-Hour Ozone Category/Classification: Moderate
CONNECTICUT (Region I)
Hartford Co Serious     Moderate <= 12.7ppm        
Litchfield Co Severe-17     Moderate > 12.7ppm        
New London Co Serious              
Tolland Co Serious     Moderate <= 12.7ppm        
Windham Co Serious              

Greene Co, IN ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
INDIANA (Region V)
Greene Co                

Greene Co, PA ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
PENNSYLVANIA (Region III)
Greene Co Incomplete Data           Nonatt. Nonatt.

Hancock, Knox, Lincoln & Waldo Cos, ME ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
MAINE (Region I)
Hancock Co (P)   Marginal            
Knox Co (P) Moderate              
Lincoln Co (P) Moderate              
Waldo Co (P)   Marginal            

Harrisburg-Lebanon-Carlisle, PA ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
PENNSYLVANIA (Region III)
Cumberland Co Marginal           Nonatt. Nonatt.
Dauphin Co Marginal           Nonatt. Nonatt.
Lebanon Co Marginal           Nonatt. Nonatt.
Perry Co Marginal              

Haywood and Swain Cos (Great Smoky NP), NC ---- Nonattainment 8-Hour Ozone Category/Classification: Former Subpart 1
NORTH CAROLINA (Region IV)
Haywood Co (P)                
Swain Co (P)                

Houston-Galveston-Brazoria, TX ---- Nonattainment 8-Hour Ozone Category/Classification: Severe-15
TEXAS (Region VI)
Brazoria Co Severe-17              
Chambers Co Severe-17              
Fort Bend Co Severe-17              
Galveston Co Severe-17              
Harris Co Severe-17              
Liberty Co Severe-17              
Montgomery Co Severe-17              
Waller Co Severe-17              

Huntington-Ashland, WV-KY ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
KENTUCKY (Region IV)
Boyd Co   Moderate           Nonatt.
WEST VIRGINIA (Region III)
Cabell Co   Moderate           Nonatt.
Wayne Co   Moderate           Nonatt.

Huron Co, MI ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
MICHIGAN (Region V)
Huron Co                

Imperial Co, CA ---- Nonattainment 8-Hour Ozone Category/Classification: Moderate
CALIFORNIA (Region IX)
Imperial Co Section 185A       Serious   Nonatt.  

Indianapolis, IN ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
INDIANA (Region V)
Boone Co                
Hamilton Co               Nonatt.
Hancock Co                
Hendricks Co               Nonatt.
Johnson Co               Nonatt.
Madison Co                
Marion Co   Marginal   Not Classified       Nonatt.
Morgan Co               Nonatt.
Shelby Co                

Jackson Co, IN ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
INDIANA (Region V)
Jackson Co                

Jamestown, NY ---- Nonattainment 8-Hour Ozone Category/Classification: Former Subpart 1
NEW YORK (Region II)
Chautauqua Co                

Jefferson Co, NY ---- Nonattainment 8-Hour Ozone Category/Classification: Moderate
NEW YORK (Region II)
Jefferson Co Marginal              

Johnstown, PA ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
PENNSYLVANIA (Region III)
Cambria Co Marginal           Nonatt. Nonatt.

Kalamazoo-Battle Creek, MI ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
MICHIGAN (Region V)
Calhoun Co                
Kalamazoo Co                
Van Buren Co                

Kent and Queen Anne's Cos, MD ---- Maintenance 8-Hour Ozone Category/Classification: Marginal
MARYLAND (Region III)
Kent Co   Marginal            
Queen Annes Co   Marginal            

Kern Co (Eastern Kern), CA ---- Nonattainment 8-Hour Ozone Category/Classification: Former Subpart 1
CALIFORNIA (Region IX)
Kern Co (P)   Serious   Not Classified Serious Serious Nonatt. Nonatt.

Kewaunee Co, WI ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
WISCONSIN (Region V)
Kewaunee Co   Moderate            

Knoxville, TN ---- Nonattainment 8-Hour Ozone Category/Classification: Former Subpart 1
TENNESSEE (Region IV)
Anderson Co             Nonatt. Nonatt.
Blount Co             Nonatt. Nonatt.
Cocke Co (P)                
Jefferson Co                
Knox Co   Marginal         Nonatt. Nonatt.
Loudon Co             Nonatt. Nonatt.
Sevier Co                

La Porte, IN ---- Maintenance 8-Hour Ozone Category/Classification: Marginal
INDIANA (Region V)
La Porte Co                

Lancaster, PA ---- Maintenance 8-Hour Ozone Category/Classification: Marginal
PENNSYLVANIA (Region III)
Lancaster Co Marginal           Nonatt. Nonatt.

Lansing-East Lansing, MI ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
MICHIGAN (Region V)
Clinton Co                
Eaton Co                
Ingham Co                

Las Vegas, NV ---- Nonattainment 8-Hour Ozone Category/Classification: Former Subpart 1
NEVADA (Region IX)
Clark Co (P)     Serious   Serious      

Lima, OH ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
OHIO (Region V)
Allen Co                

Los Angeles South Coast Air Basin, CA ---- Nonattainment 8-Hour Ozone Category/Classification: Severe 17
CALIFORNIA (Region IX)
Los Angeles Co (P) Extreme     Serious Serious   Nonatt. Nonatt.
Orange Co Extreme     Serious Serious   Nonatt. Nonatt.
Riverside Co (P) Extreme     Serious Serious   Nonatt. Nonatt.
San Bernardino Co (P) Extreme     Serious Serious   Nonatt. Nonatt.

Los Angeles-San Bernardino Cos(W Mojave),CA ---- Nonattainment 8-Hour Ozone Category/Classification: Moderate
CALIFORNIA (Region IX)
Los Angeles Co (P) Severe-17     Serious Serious   Nonatt. Nonatt.
San Bernardino Co (P) Severe-17     Serious Serious   Nonatt. Nonatt.

Louisville, KY-IN ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
INDIANA (Region V)
Clark Co   Moderate           Nonatt.
Floyd Co   Moderate           Nonatt.
KENTUCKY (Region IV)
Bullitt Co   Moderate           Nonatt.
Jefferson Co   Moderate           Nonatt.
Oldham Co   Moderate            

Macon, GA ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
GEORGIA (Region IV)
Bibb Co               Nonatt.
Monroe Co (P)               Nonatt.

Madison and Page Cos (Shenandoah NP), VA ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
VIRGINIA (Region III)
Madison Co (P)                
Page Co (P)                

Manitowoc Co, WI ---- Nonattainment 8-Hour Ozone Category/Classification: Former Subpart 1
WISCONSIN (Region V)
Manitowoc Co   Moderate            

Mariposa and Tuolumne Cos (Southern Mtn),CA ---- Nonattainment 8-Hour Ozone Category/Classification: Former Subpart 1
CALIFORNIA (Region IX)
Mariposa Co                
Tuolumne Co                

Mason Co, MI ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
MICHIGAN (Region V)
Mason Co                

Memphis, TN-AR ---- Nonattainment 8-Hour Ozone Category/Classification: Moderate
ARKANSAS (Region VI)
Crittenden Co                
TENNESSEE (Region IV)
Shelby Co   Marginal   Moderate <= 12.7ppm        

Milwaukee-Racine, WI ---- Nonattainment 8-Hour Ozone Category/Classification: Moderate
WISCONSIN (Region V)
Kenosha Co Severe-17              
Milwaukee Co Severe-17           Nonatt.  
Ozaukee Co Severe-17              
Racine Co Severe-17           Nonatt.  
Washington Co Severe-17              
Waukesha Co Severe-17           Nonatt.  

Muncie, IN ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
INDIANA (Region V)
Delaware Co                

Murray Co (Chattahoochee Nat Forest), GA ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
GEORGIA (Region IV)
Murray Co (P)                

Muskegon, MI ---- Maintenance 8-Hour Ozone Category/Classification: Marginal
MICHIGAN (Region V)
Muskegon Co   Moderate            

Nevada Co. (Western Part), CA ---- Nonattainment 8-Hour Ozone Category/Classification: Former Subpart 1
CALIFORNIA (Region IX)
Nevada Co (P)                

New York-N. New Jersey-Long Island,NY-NJ-CT ---- Nonattainment 8-Hour Ozone Category/Classification: Moderate
CONNECTICUT (Region I)
Fairfield Co Severe-17     Moderate > 12.7ppm     Nonatt. Nonatt.
Middlesex Co Serious     Moderate <= 12.7ppm        
New Haven Co Serious     Not Classified   Moderate Nonatt. Nonatt.
NEW JERSEY (Region II)
Bergen Co Severe-17     Moderate > 12.7ppm     Nonatt. Nonatt.
Essex Co Severe-17     Moderate > 12.7ppm     Nonatt. Nonatt.
Hudson Co Severe-17     Moderate > 12.7ppm     Nonatt. Nonatt.
Hunterdon Co Severe-17              
Middlesex Co Severe-17     Not Classified     Nonatt. Nonatt.
Monmouth Co Severe-17     Not Classified     Nonatt. Nonatt.
Morris Co Severe-17     Not Classified     Nonatt. Nonatt.
Passaic Co Severe-17     Moderate > 12.7ppm     Nonatt. Nonatt.
Somerset Co Severe-17     Not Classified     Nonatt. Nonatt.
Sussex Co Severe-17              
Union Co Severe-17     Moderate > 12.7ppm     Nonatt. Nonatt.
Warren Co Marginal              
NEW YORK (Region II)
Bronx Co Severe-17     Moderate > 12.7ppm     Nonatt. Nonatt.
Kings Co Severe-17     Moderate > 12.7ppm     Nonatt. Nonatt.
Nassau Co Severe-17     Moderate > 12.7ppm     Nonatt. Nonatt.
New York Co Severe-17     Moderate > 12.7ppm Moderate   Nonatt. Nonatt.
Queens Co Severe-17     Moderate > 12.7ppm     Nonatt. Nonatt.
Richmond Co Severe-17     Moderate > 12.7ppm     Nonatt. Nonatt.
Rockland Co Severe-17           Nonatt. Nonatt.
Suffolk Co Severe-17           Nonatt. Nonatt.
Westchester Co Severe-17     Moderate > 12.7ppm     Nonatt. Nonatt.

Norfolk-Virginia Beach-Newport News (HR),VA ---- Maintenance 8-Hour Ozone Category/Classification: Marginal
VIRGINIA (Region III)
Chesapeake   Marginal            
Gloucester Co                
Hampton   Marginal            
Isle Of Wight Co                
James City Co   Marginal            
Newport News   Marginal            
Norfolk   Marginal            
Poquoson   Marginal            
Portsmouth   Marginal            
Suffolk   Marginal            
Virginia Beach   Marginal            
Williamsburg   Marginal            
York Co   Marginal            

Parkersburg-Marietta, WV-OH ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
OHIO (Region V)
Washington Co               Nonatt.
WEST VIRGINIA (Region III)
Wood Co   Moderate           Nonatt.

Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE ---- Nonattainment 8-Hour Ozone Category/Classification: Moderate
DELAWARE (Region III)
Kent Co Severe-15              
New Castle Co Severe-15           Nonatt. Nonatt.
Sussex Co Marginal              
MARYLAND (Region III)
Cecil Co Severe-15              
NEW JERSEY (Region II)
Atlantic Co Moderate     Not Classified        
Burlington Co Severe-15     Not Classified     Nonatt. Nonatt.
Camden Co Severe-15     Moderate <= 12.7ppm     Nonatt. Nonatt.
Cape May Co Moderate              
Cumberland Co Severe-15              
Gloucester Co Severe-15           Nonatt. Nonatt.
Mercer Co Severe-15     Not Classified     Nonatt. Nonatt.
Ocean Co Severe-17     Not Classified        
Salem Co Severe-15     Not Classified        
PENNSYLVANIA (Region III)
Bucks Co Severe-15           Nonatt. Nonatt.
Chester Co Severe-15           Nonatt. Nonatt.
Delaware Co Severe-15           Nonatt. Nonatt.
Montgomery Co Severe-15           Nonatt. Nonatt.
Philadelphia Co Severe-15     Moderate <= 12.7ppm     Nonatt. Nonatt.

Phoenix-Mesa, AZ ---- Nonattainment 8-Hour Ozone Category/Classification: Former Subpart 1
ARIZONA (Region IX)
Maricopa Co (P)   Serious   Serious Serious      
Pinal Co (P)         Serious      

Pittsburgh-Beaver Valley, PA ---- Nonattainment 8-Hour Ozone Category/Classification: Former Subpart 1
PENNSYLVANIA (Region III)
Allegheny Co   Moderate   Not Classified   Moderate Nonatt. Nonatt.
Armstrong Co   Moderate         Nonatt. Nonatt.
Beaver Co   Moderate         Nonatt. Nonatt.
Butler Co   Moderate         Nonatt. Nonatt.
Fayette Co   Moderate            
Washington Co   Moderate         Nonatt. Nonatt.
Westmoreland Co   Moderate         Nonatt. Nonatt.

Portland, ME ---- Maintenance 8-Hour Ozone Category/Classification: Marginal
MAINE (Region I)
Androscoggin Co (P) Moderate              
Cumberland Co (P) Moderate              
Sagadahoc Co Moderate              
York Co (P) Moderate              

Poughkeepsie, NY ---- Nonattainment 8-Hour Ozone Category/Classification: Moderate
NEW YORK (Region II)
Dutchess Co Moderate              
Orange Co Severe-17           Nonatt. Nonatt.
Putnam Co Moderate              

Providence (All RI), RI ---- Nonattainment 8-Hour Ozone Category/Classification: Moderate
RHODE ISLAND (Region I)
Bristol Co Serious              
Kent Co Serious              
Newport Co Serious              
Providence Co Serious              
Washington Co Serious              

Raleigh-Durham-Chapel Hill, NC ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
NORTH CAROLINA (Region IV)
Chatham Co (P)                
Durham Co   Moderate   Moderate <= 12.7ppm        
Franklin Co                
Granville Co   Moderate            
Johnston Co                
Orange Co                
Person Co                
Wake Co   Moderate   Moderate <= 12.7ppm        

Reading, PA ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
PENNSYLVANIA (Region III)
Berks Co   Moderate           Nonatt.

Richmond-Petersburg, VA ---- Maintenance 8-Hour Ozone Category/Classification: Marginal
VIRGINIA (Region III)
Charles City Co   Moderate            
Chesterfield Co   Moderate            
Colonial Heights   Moderate            
Hanover Co   Moderate            
Henrico Co   Moderate            
Hopewell   Moderate            
Petersburg                
Prince George Co                
Richmond   Moderate            

Riverside Co, (Coachella Valley), CA ---- Nonattainment 8-Hour Ozone Category/Classification: Serious
CALIFORNIA (Region IX)
Riverside Co (P) Severe-17     Serious Serious   Nonatt. Nonatt.

Rochester, NY ---- Nonattainment 8-Hour Ozone Category/Classification: Former Subpart 1
NEW YORK (Region II)
Genesee Co                
Livingston Co                
Monroe Co                
Ontario Co                
Orleans Co                
Wayne Co                

Rocky Mount, NC ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
NORTH CAROLINA (Region IV)
Edgecombe Co                
Nash Co                

Sacramento Metro, CA ---- Nonattainment 8-Hour Ozone Category/Classification: Serious
CALIFORNIA (Region IX)
El Dorado Co (P) Severe-15     Moderate <= 12.7ppm     Nonatt.  
Placer Co (P) Severe-15     Moderate <= 12.7ppm     Nonatt.  
Sacramento Co Severe-15     Moderate <= 12.7ppm Moderate   Nonatt.  
Solano Co (P) Severe-15     Moderate <= 12.7ppm     Nonatt.  
Sutter Co (P) Severe-15           Nonatt.  
Yolo Co Severe-15     Moderate <= 12.7ppm     Nonatt.  

San Diego, CA ---- Nonattainment 8-Hour Ozone Category/Classification: Former Subpart 1
CALIFORNIA (Region IX)
San Diego Co (P)   Serious   Moderate <= 12.7ppm        

San Francisco Bay Area, CA ---- Nonattainment 8-Hour Ozone Category/Classification: Marginal
CALIFORNIA (Region IX)
Alameda Co Other     Moderate <= 12.7ppm     Nonatt.  
Contra Costa Co Other     Moderate <= 12.7ppm     Nonatt.  
Marin Co Other     Moderate <= 12.7ppm     Nonatt.  
Napa Co Other     Moderate <= 12.7ppm     Nonatt.  
San Francisco Co Other     Moderate <= 12.7ppm     Nonatt.  
San Mateo Co Other     Moderate <= 12.7ppm     Nonatt.  
Santa Clara Co Other     Moderate <= 12.7ppm     Nonatt.  
Solano Co (P) Other     Moderate <= 12.7ppm     Nonatt.  
Sonoma Co (P) Other     Moderate <= 12.7ppm     Nonatt.  

San Joaquin Valley, CA ---- Nonattainment 8-Hour Ozone Category/Classification: Serious
CALIFORNIA (Region IX)
Fresno Co Extreme     Moderate > 12.7ppm   Serious Nonatt. Nonatt.
Kern Co (P) Extreme     Not Classified Serious Serious Nonatt. Nonatt.
Kings Co Extreme         Serious Nonatt. Nonatt.
Madera Co Extreme         Serious Nonatt. Nonatt.
Merced Co Extreme           Nonatt. Nonatt.
San Joaquin Co Extreme     Moderate <= 12.7ppm   Serious Nonatt. Nonatt.
Stanislaus Co Extreme     Moderate <= 12.7ppm   Serious Nonatt. Nonatt.
Tulare Co Extreme         Serious Nonatt. Nonatt.

Scranton-Wilkes-Barre, PA ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
PENNSYLVANIA (Region III)
Lackawanna Co Marginal              
Luzerne Co Marginal              
Monroe Co Marginal              
Wyoming Co Marginal              

Sheboygan, WI ---- Nonattainment 8-Hour Ozone Category/Classification: Moderate
WISCONSIN (Region V)
Sheboygan Co   Moderate            

South Bend-Elkhart, IN ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
INDIANA (Region V)
Elkhart Co   Marginal            
St Joseph Co   Marginal            

Springfield (Western MA), MA ---- Nonattainment 8-Hour Ozone Category/Classification: Moderate
MASSACHUSETTS (Region I)
Berkshire Co Serious              
Franklin Co Serious              
Hampden Co Serious     Not Classified        
Hampshire Co Serious              

St Louis, MO-IL ---- Nonattainment 8-Hour Ozone Category/Classification: Moderate
ILLINOIS (Region V)
Jersey Co   Marginal            
Madison Co   Serious       Moderate   Nonatt.
Monroe Co   Serious           Nonatt.
St Clair Co   Serious           Nonatt.
MISSOURI (Region VII)
Franklin Co   Serious           Nonatt.
Jefferson Co   Serious           Nonatt.
St Charles Co   Serious           Nonatt.
St Louis   Serious   Not Classified       Nonatt.
St Louis Co   Serious   Not Classified       Nonatt.

State College, PA ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
PENNSYLVANIA (Region III)
Centre Co                

Steubenville-Weirton, OH-WV ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
OHIO (Region V)
Jefferson Co   Section 185A       Moderate Nonatt. Nonatt.
WEST VIRGINIA (Region III)
Brooke Co           Moderate Nonatt. Nonatt.
Hancock Co           Moderate Nonatt. Nonatt.

Sutter Co (Sutter Buttes), CA ---- Nonattainment 8-Hour Ozone Category/Classification: Former Subpart 1
CALIFORNIA (Region IX)
Sutter Co (P) Section 185A           Nonatt.  

Terre Haute, IN ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
INDIANA (Region V)
Vigo Co                

Tioga Co, PA ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
PENNSYLVANIA (Region III)
Tioga Co                

Toledo, OH ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
OHIO (Region V)
Lucas Co   Moderate            
Wood Co   Moderate            

Ventura Co, CA ---- Nonattainment 8-Hour Ozone Category/Classification: Serious
CALIFORNIA (Region IX)
Ventura Co (P) Severe-15              

Washington, DC-MD-VA ---- Nonattainment 8-Hour Ozone Category/Classification: Moderate
DISTRICT OF COLUMBIA (Region III)
Entire District Severe-15     Moderate <= 12.7ppm       Nonatt.
MARYLAND (Region III)
Calvert Co Severe-15              
Charles Co Severe-15             Nonatt.
Frederick Co Severe-15             Nonatt.
Montgomery Co Severe-15     Moderate <= 12.7ppm       Nonatt.
Prince George's Co Severe-15     Moderate <= 12.7ppm       Nonatt.
VIRGINIA (Region III)
Alexandria Severe-15     Moderate <= 12.7ppm       Nonatt.
Arlington Co Severe-15     Moderate <= 12.7ppm       Nonatt.
Fairfax Severe-15             Nonatt.
Fairfax Co Severe-15             Nonatt.
Falls Church Severe-15             Nonatt.
Loudoun Co Severe-15             Nonatt.
Manassas Severe-15             Nonatt.
Manassas Park Severe-15             Nonatt.
Prince William Co Severe-15             Nonatt.

Wheeling, WV-OH ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
OHIO (Region V)
Belmont Co               Nonatt.
WEST VIRGINIA (Region III)
Marshall Co               Nonatt.
Ohio Co               Nonatt.

York, PA ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
PENNSYLVANIA (Region III)
Adams Co Marginal              
York Co Marginal           Nonatt. Nonatt.

Youngstown-Warren-Sharon, OH-PA ---- Maintenance 8-Hour Ozone Category/Classification: Former Subpart 1
OHIO (Region V)
Columbiana Co   Incomplete Data            
Mahoning Co   Marginal            
Trumbull Co   Marginal            
PENNSYLVANIA (Region III)
Mercer Co Marginal              
Notes:
* The 1-hour ozone standard, as well as designations and classifications for all 1-hour ozone nonattainment and maintenance areas, have been revoked except for the Greensboro, NC, Nashville, TN, and Denver, CO maintenance areas. See details here.

There are a few counties that are split between 8-hour ozone areas:

  • Kern Co, CA is split between the San Joaquin (Serious) and Kern Co (Eastern Kern), CA (Subpart 1) 8-hour ozone areas. The northeastern portion of the county is attainment. (Severe-15) and Kern Co (Eastern Kern) (Serious).
  • Los Angeles Co, CA is split between Los Angeles South Coast (Severe 17) and Los Angeles-San Bernardino Cos (W Mojave), CA (Antelope Valley) (Moderate) 8-hour ozone areas. The previous 1-hour ozone areas were Los Angeles South Coast (Extreme) and SE Desert (Severe-17).
  • Riverside Co, CA is split between the Los Angeles South Coast (Severe 17) and Riverside Co, (Coachella Valley), CA (Serious) 8-hour ozone areas. ozone areas were Los Angeles South Coast (Extreme) and SE Desert (Severe-17). The previous 1-hour ozone SE Desert (Severe-17) was split into Los Angeles-San Bernardino Cos (W Mojave), CA (Antelope Valley) (Moderate) and Riverside Co, (Coachella Valley), CA (Serious) 8-hour ozone areas.
  • San Bernardino Co, CA is split between Los Angeles South Coast (Severe 17) and Los Angeles-San Bernardino Cos (W Mojave), CA (Antelope Valley) (Moderate) 8-hour ozone areas. The previous 1-hour ozone areas were Los Angeles South Coast (Extreme) and SE Desert (Severe-17).
  • Solano Co, CA is split between San Francisco (Marginal) and Sacramento (Serious) 8-hour ozone areas. This is the same as the previous 1-hour area. The previous 1-hour ozone areas were San Francisco (Other) and Sacramento (Severe-15).
  • Sutter Co, CA is split between the Sutter Co (Sutter Buttes) (Subpart 1) and Sacramento (Serious) 8-hour ozone areas. The previous 1-hour ozone areas were Yuba City (Section 185A) and Sacramento (Severe-15).

There are a few counties that are split between one or more previous 1-hour ozone nonattainment areas that are now in one 8-hour ozone area:

  • Fairfield and Litchfield Cos, CT were in both the New York (Severe-17) and the Greater CT (Serious) previous 1-hour ozone nonattainment areas. Fairfield Co is completely in the New York 8-hour ozone area and Litchfield Co is completely in the Greater CT 8-hour ozone area.
  • Hillsborough Co, NH was in both the Boston-Lawrence-Worcester (E.MA), MA-NH (Serious) and the Manchester, NH (Marginal) previous 1-hour nonattainment areas, but is now in the Boston-Manchester-Portsmouth (SE) (Moderate) 8-hour ozone area.
  • Rockingham Co, NH is in Boston-Lawrence-Worcester (E. MA), MA-NH (serious), Manchester, NH (Marginal) and Portsmouth-Dover-Rochester, NH (Serious) previous 1-hour ozone nonattainment areas, but is now in the Rockingham Co, NH was in Boston-Lawrence-Worcester (E. MA), MA-NH (Serious), Manchester, NH (Marginal) and Boston-Manchester-Portsmouth (SE), NH 8-hour ozone area.
  • Orange Co, NY was in both the New York-N. New Jersey-Long Island, NY-NJ-CT (Severe-17) and the Poughkeepsie, NY (Moderate) previous 1-hour ozone nonattainment areas, but is now in the Poughkeepsie, NY (Moderate) 8-hour ozone area.
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