LANSING, Mich. (AP) — Permits have been updated for a Detroit-area steelmaker and an oil refinery, the state Department of Environmental Quality announced Monday.
A 2014 permit for Dearborn-based Severstal expands testing requirements, adds emission limits for fine particulates, enhances emission and operational monitoring requirements and provides the DEQ with more tools to make sure the steelmaker continues to comply.
The heavy oil upgrade permit for the Marathon refinery in southwest Detroit makes emission limitation adjustments and production adjustments. Some operations will see a decrease in the allowable emissions.
"These two operators are among the largest in the state of Michigan," DEQ Air Quality Division Chief Vince Hellwig said in a release. "Development of effective permits at these enormous operations is a huge challenge."
Severstal originally was provided an air permit in 2006 to increase production and install additional air pollution control equipment. Since 2010, the state has issued 38 notices of violation to Severstal.
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