2021-25975: Air Plan Approval; Ohio; Partial Approval and Partial Disapproval of the Muskingum River SO2
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The Environmental Protection Agency (EPA) is proposing to partially approve and partially disapprove a revision to the Ohio State Implementation Plan (SIP) intended to provide for attaining the 2010 primary, health-based 1-hour sulfur dioxide (SO<INF>2</INF>) national ambient air quality standard (NAAQS or ``standard'') for the Muskingum River SO<INF>2</INF> nonattainment area. This SIP revision (hereinafter referred to as Ohio's Muskingum River SO<INF>2</INF> attainment plan or plan) includes Ohio's attainment demonstration and other attainment planning elements required under the Clean Air Act (CAA). EPA is proposing to approve the base year emissions inventory and affirm that the nonattainment new source review requirements for the area have been met. EPA is proposing to disapprove the attainment plan, since the plan relies on, among other things, acquisition of a parcel of land by a facility, Globe Metallurgical (Globe), located within the nonattainment area. Globe has recently indicated to EPA and Ohio EPA that it will not be purchasing that parcel of land. Additionally, EPA is proposing to disapprove the plan for failing to meet the requirements for meeting reasonable further progress (RFP) toward attainment of the NAAQS, reasonably available control measures/reasonably available control technology (RACM/RACT), emission limitations and control measures as necessary to attain the NAAQS, and contingency measures. Based on the change in circumstances since the original proposed action, EPA is now proposing a changed course of action.
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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