Clean Air Act Finding of Attainment; California-Imperial Valley Planning Area; Particulate Matter of 10 Microns or Less (PM-10)

EPA is taking final action to find that the State of California has established to EPA's satisfaction that the Imperial Valley Planning Area (Imperial County), a PM-10 moderate nonattainment area, would have attained the national ambient air quality standards (NAAQS) for particulate matter of ten microns or less (PM-10) by the applicable Clean Air Act (CAA or the Act) attainment date, December 31, 1994, but for emissions emanating from outside the United States, i.e., Mexico. As a result of this final action, Imperial County will not be subject to a finding of failure to attain and reclassification to serious at this time and will remain a moderate PM-10 nonattainment area.