U.S. Steel is facing new fines levied by the Occupational Safety and Health Administration as a result of findings that shed new light on why a valve ruptured at its Clairton Coke Plant in August 2025, leading to an explosion that left two dead and a dozen injured.
The fines, which total nearly $120,000 for U.S. Steel, are also levied against contractor MPW Industrial Services, whose employees were working to clean the valve that eventually broke on the day of the explosion. It faces nearly $62,000 in fines.
The contractor failed to provide a relief valve for a high-pressure water system, according to a statement the U.S. Department of Labor, which includes OSHA, released on Wednesday. So, as pressure built, it couldn’t escape before it was too late…