Approval and Promulgation of Air Quality Implementation Plans; West Virginia: Kentucky; Ohio; Huntington-Ashland Nonattainment Area; Determinations of Attainment of the 1997 Annual Fine Particulate Standards

EPA is determining that the tri-state Huntington-Ashland, West Virginia-Kentucky-Ohio, fine particulate (PM<INF>2.5</INF>) nonattainment Area (hereafter referred to as "the Huntington-Ashland Area" or "Area") has attained the 1997 annual PM<INF>2.5</INF> national ambient air quality standards (NAAQS) and additionally, that the Area has attained the 1997 annual PM<INF>2.5</INF> NAAQS by its applicable attainment date of April 5, 2010. The Huntington-Ashland Area is comprised of Cabell and Wayne Counties in their entireties and a portion of Mason County (Graham Tax District) in West Virginia; Boyd County in its entirety and a portion of Lawrence County in Kentucky; and a portion of Adams, a portion of Gallia, Lawrence, and Scioto Counties in Ohio. These determinations of attainment are based upon quality-assured and certified ambient air monitoring data for the 2007- 2009 period showing that the Area has monitored attainment of the 1997 annual PM<INF>2.5</INF> NAAQS. The requirements for the Area to submit an attainment demonstration and associated reasonably available control measures (RACM), a reasonable further progress (RFP) plan, contingency measures, and other planning State Implementation Plan (SIP) revisions related to attainment of the standard shall be suspended so long as the Area continues to attain the 1997 annual PM<INF>2.5</INF> NAAQS.