Approval and Promulgation of Implementation Plans; Portion of York County, South Carolina Within Charlotte-Gastonia-Rock Hill, North Carolina-South Carolina 1997 8-Hour Ozone Nonattainment Area; Reasonable Further Progress Plan

الملخص

EPA is proposing to approve portions of two state implementation plan (SIP) revisions, submitted by the South Carolina Department of Health and Environmental Control, on August 31, 2007, and April 29, 2010, to address the reasonable further progress (RFP) plan requirements for the 1997 8-hour ozone national ambient air quality standards (NAAQS) for the portion of York County, South Carolina that is within the bi-state Charlotte-Gastonia-Rock Hill 1997 8-hour ozone nonattainment area. The Charlotte-Gastonia-Rock Hill, North Carolina- South Carolina 1997 8-hour ozone nonattainment area (hereafter referred to as the "bi-state Charlotte Area") is comprised of Cabarrus, Gaston, Lincoln, Mecklenburg, Rowan, Union and a portion of Iredell (Davidson and Coddle Creek Townships) Counties in North Carolina; and a portion of York County in South Carolina. EPA is also providing the status of its adequacy determination for the motor vehicle emissions budgets (MVEB) for volatile organic compounds that were included in South Carolina's RFP plan. Further, EPA is proposing to approve these MVEB. This proposed action is being taken pursuant to section 110 of the Clean Air Act. EPA will take action on