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U.S. Steel News and Resources

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OSHA fines U.S. Steel, MPW Industrial Services for Clairton Coke Works explosion

OSHA investigators concluded U.S. Steel and MPW Industrial Services exposed workers to explosion, struck-by, and high-pressure injection hazards, proposing nearly $180,000 in fines.
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CSB recommends facility siting evaluation to U.S. Steel

After a fatal explosion, the CSB called on U.S. Steel to conduct a facility siting evaluation at its Clairton Coke Works to address immediate hazards to workers based on building locations.

OSHA fines U.S. Steel, MPW Industrial Services for Clairton Coke Works explosion

February 24, 2026 · OSHA investigators concluded U.S. Steel and MPW Industrial Services exposed workers to explosion, struck-by, and high-pressure injection hazards, proposing nearly $180,000 in fines.

CSB recommends facility siting evaluation to U.S. Steel

December 30, 2025 · After a fatal explosion, the CSB called on U.S. Steel to conduct a facility siting evaluation at its Clairton Coke Works to address immediate hazards to workers based on building locations.

CSB issues update on fatal Clairton Coke Works explosion

September 30, 2025 · A 70-year-old cast-iron valve leaked gas when U.S. Steel and contract workers attempted to flush it with water, causing an explosion which killed 2 and injured 11 at the Clairton Coke Works.