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Story summary
- An explosion at the Clairton Coke Works on August 11, 2025 killed two, injured 11, and caused $52.5 million in damage.
- The Chemical Safety Board said pressurized water on a 70-year-old valve without a written procedure caused the rupture and noted unsafe siting within 20 feet of the gas line.
- After OSHA fined U.S. Steel $118,000, the company said it has strengthened safety protocols, added valve-cleaning practices, and improved its Management of Change program.
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