CALIFORNIA
DESIGNATIONS IN US EPA REGION 9 FOR THE
1997 8-HOUR OZONE (03)
NATIONAL AMBIENT AIR QUALITY STANDARDS
I B Nonattainment/Subpart 2/Extreme
Nonattainment, Subpart 2/Severe-17
I Nonattainment/Subpart 2/Severe-15
Chico, CA
Sutter County (part), CA *T "r*
(SutteV Buttes) ^
San Francisco
Bay Area, CA
Nevada County (Western part), CA
nevaIda^
Amador and Calaveras Cos., CA
(Central Mountain Cos.)
Mariposa and Tuolumne Cos., CA
(Southern Mountain Counties)


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