ArcelorMittal Indiana Harbor - Primary Metal Facility in East Chicago, Indiana

ArcelorMittal Indiana Harbor, located at 3001 Dickey Road in East Chicago, Indiana, is a major primary metal facility specializing in integrated steel production. As part of the global ArcelorMittal group, it is one of the largest steel mills in North America, with a significant operational footprint in the Great Lakes region. The facility operates under the regulatory framework of the US Environmental Protection Agency, including the Clean Air Act, Clean Water Act, and Resource Conservation and Recovery Act. As a primary metal plant with NAICS code 331111 (iron and steel mills), it is subject to stringent emissions standards and reporting requirements under the Toxics Release Inventory (TRI) Section 313. The scale of operations places it among the largest integrated steel mills globally, with substantial production capacity. The environmental significance of ArcelorMittal Indiana Harbor is notable due to its proximity to Lake Michigan and the Chicago metropolitan area. The facility's operations involve coke production, blast furnaces, and basic oxygen steelmaking, which generate emissions of particulate matter, sulfur dioxide, and greenhouse gases. Community proximity and the plant's role in the regional economy underscore the importance of its environmental management practices.

East Chicago, Indiana, is part of the heavily industrialized Calumet region along Lake Michigan. The area has a history of industrial activity, including steel production, oil refining, and chemical manufacturing. Air quality in the region is affected by emissions from multiple industrial sources, and water discharges into Lake Michigan are closely monitored. The proximity of residential communities to industrial facilities heightens concerns about exposure to pollutants such as fine particulate matter and heavy metals.