Approval and Promulgation of Implementation Plans; Ohio Designation of Areas for Air Quality Planning Purposes; Ohio

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EPA is proposing to redesignate Coshocton, Gallia, and Lorain Counties to the status of areas in attainment of the National Ambient Air Quality Standards (NAAQS)for sulfur dioxide (SO 2 ). Ohio requested this action on October 26, 1995, and provided supplemental supporting material to EPA in a letter dated September 14, 1999. EPA is also proposing to approve the maintenance plans for Coshocton, Gallia, and Lorain Counties. The plans are intended to ensure maintenance of the NAAQS, and were submitted with the redesignation requests. In conjunction with these actions, EPA is proposing to approve State-adopted emission limits for the following facilities: in Coshocton County: Columbus and Southern Ohio Electric--Conesville plant; in Gallia County: Ohio Valley Electric Company--Kyger Creek plant and Ohio Power--Gavin Plant; and in Lorain County: CEI--Avon Lake plant, Ohio Edison--Edgewater Plant, U.S. Steel--Lorain plant, and B.F. Goodrich Company--Lorain County plant. These limits would replace equivalent limits in the Federal Implementation Plan (FIP) for these three Counties. EPA is ``parallel processing'' Ohio's request to redesignate the three counties to attainment while Ohio fin