Environmental Protection Agency Docket EPA-R04-OAR-2017-0390 Proposed Rule

2018-11567: Air Plan Approval and Air Quality Designation; KY; Redesignation of the Kentucky Portion of the Louisville Unclassifiable Area

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Summary

On May 4, 2018, the Commonwealth of Kentucky, through the Kentucky Energy and Environment Cabinet, Division for Air Quality (KDAQ), submitted a request for the Environmental Protection Agency (EPA) to redesignate the portion of Kentucky that is within the bi- state Louisville, KY-IN fine particulate matter (PM<INF>2.5</INF>) unclassifiable area (hereinafter referred to as the "bi-state Louisville Area" or "Area") to unclassifiable/attainment for the 2012 primary annual PM<INF>2.5</INF> national ambient air quality standard (NAAQS). The bi-state Louisville Area consists of Jefferson County and a portion of Bullitt County in Kentucky as well as Clark and Floyd Counties in Indiana. EPA now has sufficient data to determine that the bi-state Louisville Area is in attainment of the 2012 primary annual PM<INF>2.5</INF> NAAQS. Therefore, EPA is proposing to approve Kentucky's request and redesignate the Area to unclassifiable/ attainment for the 2012 primary annual PM<INF>2.5</INF> NAAQS based upon complete, quality-assured, and certified ambient air monitoring data showing that the PM<INF>2.5</INF> monitors in the bi-state Louisville Area are in compliance with the 2012 primary annual PM<INF>2.5</INF> NAAQS.

The agency’s own summary, as published.

What this changes

Amends 1 part of the Code of Federal Regulations — the standing rules this notice rewrites.

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