Finding of Failure To Attain by the Attainment Date for the 2010 1-Hour Primary Sulfur Dioxide National Ambient Air Quality Standard; Louisiana; Evangeline Parish Nonattainment Area

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The Environmental Protection Agency (EPA) is making a determination that the Evangeline Parish, Louisiana, sulfur dioxide (SO 2 ) nonattainment area (NAA) failed to attain the 2010 1- hour primary SO 2 national ambient air quality standard (2010 SO 2 NAAQS) under the Clean Air Act (CAA or the Act) by the applicable statutory attainment date of April 9, 2023. This determination is based upon consideration and review of all relevant and available information for the NAA, including reported emissions records and available modeling data for the area's primary SO 2 source, Cabot Corporation's Ville Platte Plant (Cabot).