2016-14806: Approval and Promulgation of Air Quality Implementation Plans; Indiana; Redesignation of the Indiana Portion of the Louisville Area to Attainment of the 1997 Annual Standard for Fine Particulate Matter
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The Environmental Protection Agency (EPA) is issuing a supplement to its July 11, 2013, proposed approval of Indiana's request to redesignate the Indiana portion of the Louisville, Indiana-Kentucky, area to attainment for the 1997 annual national ambient air quality standard (NAAQS or standard) for fine particulate matter (PM<INF>2.5</INF>). After EPA's proposed redesignation in 2013, an audit of the Kentucky monitoring program identified problems which invalidated monitoring data for 2012 and the beginning of 2013. Because of this invalid data, the area could not meet the requirement that the entire area must demonstrate attainment of the standard using the most current three years of data. This supplemental proposal provides new quality-assured, quality-controlled data for the most recent three years of data showing that the entire area attains the 1997 PM<INF>2.5</INF> standard. In the supplemental proposal EPA is proposing that the entire Louisville area is attaining the 1997 PM<INF>2.5</INF> NAAQS based on the most recent three years of data. EPA also discusses the maintenance plan out-year emission projections, and the Cross-State Air Pollution Rule (CSAPR) remanded budgets impact on the Louisville area--because the status of these issues has changed from the initial proposal to now. EPA is seeking comment only on the issues raised in this supplemental proposal, and is not re-opening for comment other issues raised in the July 11, 2013, proposed approval.
The agency’s own summary, as published.
What this changes
Amends 2 parts of the Code of Federal Regulations — the standing rules this notice rewrites.
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