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Clairton, PA · Final report 2025-08-11
Active investigationPA
On August 11, 2025, at approximately 10:45 a.m. local time, an explosion at the United States Steel Corporation Clairton Plant coke oven batteries 13 and 14 caused two fatalities and
The U.S. Chemical Safety and Hazard Investigation Board (CSB) is an independent federal agency that investigates serious chemical accidents to determine root causes and issue safety recommendations. It has no regulatory or enforcement authority — its power is the public investigation.
CSB investigation page ↗Source: U.S. Chemical Safety Board. License: CC0 1.0. Related: EPA RMP facilities nearby.