The groups had sought $42 million for 102-day pollution control outage that sent emissions soaring.
The company also must make improvements to the Edgar Thomson plant, including installing a video system to monitor emissions, and conduct a study to determine better ways to control pollution.
Residents, activists, union workers and U.S. Steel weighed in on new rules that could reduce air pollution from the Clairton Coke Works at a public hearing Wednesday night.
An Allegheny County study pinned hydrogen sulfide levels on the Clairton plant. The company disputes the findings.
A clean-air group criticized the county for limiting its own ability to regulate the company.
The company said the county is not “honoring its end of the bargain” struck as part of a 2019 settlement over air pollution violations.
The groups want a court-appointed outside monitor to oversee environmental compliance at U.S. Steel.
