Nevada Oregon Siskiyou San Francisco Bay Area, CA Subpart 2 Marginal Marin San Francisco" Chico (Butte Co), CA Subpart 1 (Basic) Sutter County (Sutter Buttes), CA Subpart 1 (Basic) Nevada Co. (WesternPortion) , CA Subpart 1 (Basic) Sacramento Metro Subpart 2 Serious Amador and Calaveras Cos, CA(Central Mtn. Cos) Subpart 1 (Basic) Mariposa and Tuolomne Cos, CA (Southern Mtn. Cos) Subpart 1 ( Basic) Santa Cruz Subpart 2 Severe 17 (Los Angeles South Coast) Subpart 2 Serious Subpart 2 Moderate Subpart 2 Marginal Subpart 1 (Basic) California 8-hour Ozone Nonattainment Areas in Blue Border Ventura Co., CA Subpart 2 Serious San Joaquin Valley , CA Subpart 2 Serious Kern Co. (Eastern Kern), CA Subpartl (Basic) Los Angeles- San Bernardino Cos, CA (Western Mojave) Subpart 2 Moderate Riverside Co. (Coachella Valley ),CA Subpart 2 Serious Los Angeles - South Coast Air Basin, CA Subpart 2 Severe 17 q= 50 100 miles San Diego, CA Subpart 1 (Basic) 4 Tribal Territories in Attainment San Diego imperial 1 I n_ Imperial Co. Subpart 2 Moderate ------- |