Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality Planning Purposes; Wisconsin; Redesignation of Kewaunee County Area to Attainment for Ozone

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EPA is proposing to make a determination under the Clean Air Act (CAA) that the nonattainment area of Kewaunee County has attained the 8-hour ozone National Ambient Air Quality Standard (NAAQS). This determination is based on quality-assured ambient air quality monitoring data for the 2004-2006 ozone seasons that demonstrate that the 8-hour ozone NAAQS has been attained in the area. Preliminary monitoring data for 2007 continue to show monitored attainment of the NAAQS. EPA is proposing to approve a request from the State of Wisconsin to redesignate the Kewaunee County area to attainment of the 8-hour ozone NAAQS. The Wisconsin Department of Natural Resources (WDNR) submitted this request on June 12, 2007. In proposing to approve this request EPA is also proposing to approve, as a revision to the Wisconsin State Implementation Plan (SIP), the State's plan for maintaining the 8-hour ozone NAAQS through 2018 in the area. EPA also finds adequate and is proposing to approve the State's 2012 and 2018 Motor Vehicle Emission Budgets (MVEBs) for the Kewaunee County area.