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Previous Nonattainment Areas No Longer Subject to the 1-hour Standard

As of June 15, 2005

Areas Listed Alphabetically Design
Value
(ppm)
Average
Expected
Exceedence
Yr Classification No. of
NAA
Counties
Before Nov 90
No. of
New
Counties
Total
No. of
Counties
2000
Pop.
(1000's)
EPA
Region
State Located
in
MSA/CMSA
Year
of
SIP
Call
Albany-Schenectady-Troy, NY 0.128 2.7 1989 Marginal 0 6 6 892 2 NY msa 1989
Allentown-Bethlehem-Easton, PA-NJ 0.137 3.1 1989 Marginal 4 0 4 740 3 2 PA-NJ msa 1988
Altoona, PA 0.129 2.0 1989 Marginal 0 1 1 129 3 PA msa 1989
Atlantic City, NJ 0.145 4.0 1989 Moderate 2 0 2 355 2 NJ msa 1988
Baltimore, MD 0.194 10.7 1989 Severe-15 6 0 6 2,512 3 MD msa 1988
Baton Rouge, LA 0.164 4.5 1989 Severe-15 5 0 5 636 6 LA msa 1988
Beaumont-Port Arthur, TX 0.158 3.7 1989 Serious 2 1 3 385 6 TX msa 1988
Boston-Lawrence-Worcester (E. MA), MA-NH 0.165 10.0 1989 Serious 12 0 12 5,883 1 MA-NH msa 1988
Buffalo-Niagara Falls, NY 0.131 3.8 1989 Marginal 0 2 2 1,170 2 NY msa 1989
Chicago-Gary-Lake County, IL-IN 0.190 13.0 1989 Severe-17 6 4 10 8,758 5 IL-IN msa 1988
Dallas-Fort Worth, TX 0.140 3.5 1989 Serious 2 2 4 4,590 6 TX msa 1988
El Paso, TX 0.170 7.9 1989 Serious 1 0 1 680 6 TX msa 1988
Erie, PA 0.129 3.0 1989 Marginal 1 0 1 281 3 PA msa 1989
Essex Co, NY 0.127 1.8 1989 Marginal RT 0 1 1 0 2 NY no 1989
Greater Connecticut, CT 0.172 7.9 1989 Serious 8 0 8 2,532 1 CT cmsa 1988
Harrisburg-Lebanon-Carlisle, PA 0.136 2.2 1989 Marginal 4 0 4 629 3 PA msa 1989
Houston-Galveston-Brazoria, TX 0.220 12.2 1989 Severe-17 3 5 8 4,670 6 TX cmsa 1988
Jefferson Co, NY 0.143 3.4 1989 Marginal* 0 1 1 112 2 NY no 1988
Johnstown, PA 0.133 2.5 1989 Marginal 0 2 2 233 3 PA msa 1989
Knox & Lincoln Co.s, ME 0.158 11.1 1989 Moderate* 2 0 2 73 1 ME no 1988
Lancaster, PA 0.125 1.3 1989 Marginal 1 0 1 471 3 PA msa 1989
Lewiston-Auburn, ME 0.137 1.5 1989 Moderate* 2 0 2 221 1 ME msa 1989
Los Angeles South Coast Air Basin, CA 0.330 137.5 1989 Extreme 4 0 4 14,594 9 CA cmsa 1988
Manchester, NH 0.128 1.4 1989 Marginal 3 0 3 365 1 NH msa 1989
Milwaukee-Racine, WI 0.183 9.8 1989 Severe-17 5 1 6 1,839 5 WI cmsa 1988
Morongo Band of Mission Indians 1989 Severe 17 1 9 CA
New York-N. New Jersey-Long Island, NY-NJ-CT 0.201 17.4 1989 Severe-17 24 0 24 19,171 2 1 NY-NJ-CT cmsa 1988
Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD 0.187 8.8 1989 Severe-15 12 2 14 6,311 3 2 PA-NJ-DE-MD cmsa 1988
Portland, ME 0.156 6.1 1989 Moderate 3 0 3 488 1 ME msa 1988
Portsmouth-Dover-Rochester, NH 0.165 5.3 1989 Serious 2 0 2 192 1 NH msa 1988
Poughkeepsie, NY 0.134 1.3 1989 Moderate 1 2 3 600 2 NY msa 1989
Providence (All RI), RI 0.162 6.4 1989 Serious 5 0 5 1,048 1 RI cmsa 1988
Reno, NV 0.131 2.0 1990 Marginal 0 1 1 339 9 NV msa no
Sacramento Metro, CA 0.160 15.8 1989 Severe-15 6 0 6 1,978 9 CA msa 1988
San Francisco Bay Area, CA 0.140 3.4 1989 Other 9 0 9 6,542 9 CA cmsa 1988
San Joaquin Valley, CA 0.170 44.2 1989 Exreme 8 0 8 3,191 9 CA part part
Scranton-Wilkes-Barre, PA 0.129 3.0 1989 Marginal 5 0 5 763 3 PA msa 1989
Smyth Co, VA (White Top Mtn) 0.125 1.9 1989 Marginal RT 0 1 1 0 3 VA no no
Southeast Desert Modified AQMA, CA 0.240 59.6 1989 Severe-17 3 0 3 981 9 CA cmsa 1988
Springfield (Western MA), MA 0.167 6.7 1989 Serious 4 0 4 815 1 MA msa 1988
Sunland Park, NM (New Area 1995) 0.127 1.7 1991 Marginal 0 1 1 10 6 NM msa no
Sussex Co, DE 0.130 3.6 1989 Marginal 0 1 1 157 3 DE no 1989
Ventura Co, CA 0.170 38.8 1989 Severe-15* 1 0 1 753 9 CA cmsa 1988
Washington, DC-MD-VA 0.165 5.0 1989 Severe-15 12 4 16 4,545 3 DC-MD-VA msa 1988
York, PA 0.129 1.5 1989 Marginal 2 0 2 473 3 PA msa 1989
Youngstown-Warren-Sharon, PA portion 0.134 2.1 1989 Marginal 2 1 1 120 5 OH msa 1989
 
45 Total Areas 172 27 199 101,227  
 

Yr = Data from 1987-89 or 1988-90; RT = Rural Transport; * 5% Classification Change; No. Counties Before '90 = Prior designation retained by operation of law; Sip Call = EPA called for a new State Implementation Plan. Totals were adjusted to account for multiple nonattainment areas in a single county. The former 1-hour ozone designations and classifications as of June 15, 2004, are being retained in subpart C of Part 81 for purposes of the anti backsliding provisions of 40 CFR 51.905. 40 CFR 51.905(c) references subpart C of part 81 for the areas affected by the anti-backsliding regulation.

78 FR 58189, effective 10/23/2013, corrected a boundary for the land of the Morongo Band of Mission Indians, located near Banning Pass in Riverside County, identifying it as a separately designated area for the one-hour Ozone standard, independent of the Los Angeles-South Coast Air Basin Area.


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