CALIFORNIA ,a* Yuba City Area* ' < . (Reno, San Francisco- __ Bay Area Monterey Bay Area- DESIGNATIONS IN US EPA REGION 9 FOR THE 1-HOUR OZONE (Os) NATIONAL AMBIENT AIR QUALITY STANDARDS I B Nonattainment/Extreme ~ Nonattainment/Severe-17 ~ Nonattainment/Severe-15 ~ Nonattainment/Not Classified/Moderate ~ Nonattainment/Marginal ~ Nonattainment/Sec. 185 A Area ~ Attainment/Maintenance ~ Unci assifi abl e/Attainment The primary and secondary national ambient air quality standards (NAAQS) for 1-hour ozone are 0.12 parts per million (ppm). Areas violating the NAAQS are designated "Nonattainment." Other Pacific territories under EPA Region 9 juris- diction (not shown on map) are designated "Unclassifiable/Attainment." Sources: Title 40 CFR Part 81, §303, 305, 312, 329, 352, 353, 354 (2012), 78 FR 58189 (September 23, 2013), ESRI (2006), TANA (2006). S-EPA REGION 9-AIR W- s 0 25 50 100 Miles 1 I I I I I I I I o GUAM if VAD A I Sacramento Metro Area AIR1300069 l.mxd (September 26. 2013) A.RIZONA East Kern County Morongo Band of Mission Indians Phoenix, AZ Imperial County Area San Diego Area Santa Barbara- Santa Maria- Lompoc Area ^Ventura County Area kOT=>e*l",s Ange IcsTSouthTGoast' Air BasinA'reai HAWAII ------- |