2025-20417: Clean Air Act Operating Permit Program; Order on Petition for Objection to State Operating Permit for United States Steel Corporation, Mon Valley Works, Clairton Plant
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The Environmental Protection Agency (EPA) Administrator signed an order dated September 16, 2025, granting in part and denying in part a petition dated November 19, 2024, from the United States Steel Corporation. The petition requested that the EPA object to a Clean Air Act (CAA) title V operating permit issued by the Allegheny County Health Department to the United States Steel Corporation, Mon Valley Works, Clairton Plant for its by-products coke plant located in Clairton, Allegheny County, Pennsylvania.
The agency’s own summary, as published.
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