Approval and Promulgation of Air Quality Implementation Plan; Pennsylvania; Determination of Attainment for the 2008 Lead National Ambient Air Quality Standard for the Lyons Nonattainment Area

The Environmental Protection Agency (EPA) is taking final action to determine that the Lyons, Pennsylvania nonattainment area (hereafter referred to as the "Lyons Area" or "Area") has attained the 2008 lead (Pb) national ambient air quality standard (NAAQS). On March 31, 2014, the Commonwealth of Pennsylvania, through the Pennsylvania Department of Environmental Protection, submitted a request to EPA to make a determination that the Lyons Area has attained the 2008 Pb NAAQS. This determination of attainment is based upon certified, quality-assured, and quality-controlled ambient air monitoring data from 2011-2013 which shows that the Area has monitored attainment for the 2008 Pb NAAQS. Additionally, as a result of this determination, EPA is taking final action to suspend the requirements for the Area to submit an attainment demonstration, together with reasonably available control measures (RACM), a reasonable further progress (RFP) plan, and contingency measures for failure to meet RFP or attainment deadlines for so long as the Area continues to attain the 2008 Pb NAAQS. This determination does not constitute a redesignation to attainment. The Lyons Area will remain designated nonattainment for the 2008 Pb NAAQS until such time as EPA determines that the Lyons Area meets the Clean Air Act (CAA) requirements for redesignation to attainment, including an approved maintenance plan. These actions are being taken under the Clean Air Act (CAA).