Federal Register #EPAR05OAR20230635

EPA Rule Proposal: SO2 Redesignation and Maintenance Plan for St. Clair, MI (DTE Power Plants)

This EPA regulatory action addresses air quality management in southeast Michigan: - Government Buyer: - Environmental Protection Agency (EPA) - OEMs and Vendors: - DTE Energy (operator of Belle River and St. Clair Power Plants) - Products/Services Requested: - No procurement of goods or services; this is a regulatory rulemaking - Notable Requirements: - Redesignation of the St. Clair area to attainment for the 2010 SO2 NAAQS - Approval of Michigan's maintenance plan for continued SO2 compliance - Incorporation of new SO2 emissions limits for the DTE Belle River Power Plant into the Michigan SIP - Closure of the DTE St. Clair Power Plant as a key emissions reduction factor - Ongoing air quality monitoring and enforceable emissions limits - This action impacts air quality compliance and emissions management for power generation facilities in the region, with DTE Energy as the primary affected OEM.

Description

The Environmental Protection Agency (EPA) is proposing to redesignate the St. Clair nonattainment area in southeast Michigan to attainment for the 2010 sulfur dioxide (SO2) National Ambient Air Quality Standard (NAAQS). The EPA is also proposing to approve Michigan's maintenance plan for the St. Clair SO2 nonattainment area and emissions limits for the DTE Belle River Power Plant. Michigan submitted the request for approval of the St. Clair area redesignation and maintenance plan on December 15, 2023, with a supplement on July 24, 2025. Comments on this proposed rule must be received by May 11, 2026.

View original listing