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)------- |