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

As of June 15, 2005


Classification No. Areas No. Counties 2000
Pop.
(1000s)

Extreme 2 12 17,783
Severe (2007) 6 51 35,420
Severe (2005) 6 48 16,735
Serious 8 38 16,125
Moderate 5 12 1,737
Marginal 18 38 6,884
Other 1 9 6,542
 
   SUBTOTAL: 46 199 101,226
 
Section 185A 3 4 459
Incomplete Data 14 15 1,260
 
   SUBTOTAL: 17 19 1,719
 

 
   GRAND TOTAL: 63 217 102,945

County subtotals and grand totals may not equal sum of parts. Part counties are only counted one time within groupings.

"Section 185A" was previously called "Transitional".

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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