HARRISBURG, Pa. — A federal safety agency investigating an August blast at a U.S. Steel plant near Pittsburgh that left two workers dead said it found a series of incomplete, outdated or inadequate procedures and practices that ''exposed'' employees to the explosion, which happened as workers were flushing a gas valve.
The Occupational Safety and Health Administration fined the company a total of $118,214 and issued 10 citations.
The blast also injured 11 others, including contractors, according to the Chemical Safety Board, a federal agency investigating the explosion.
Before the August blast, Clairton Coke Works had a history of accidents and explosions, and some current and former workers there say poor management and underinvestment have exacerbated air pollution and undermined workplace safety, Pittsburgh's Public Source and The Associated Press have found.
U.S. Steel has said the explosion happened when workers were flushing a gas valve in preparation for routine planned maintenance at the sprawling riverside industrial facility, the largest of its kind in the Western Hemisphere.
The valve ruptured and released combustible coke oven gas, OSHA said.
In the 16-page report dated Monday, OSHA said that U.S. Steel's written procedures, practices and training to safely maintain equipment and flush the gas valve were incomplete, outdated or inadequate.
Those shortcomings, it said, ''exposed'' employees to an explosion or explosion hazard when the valve ruptured. Another citation said the U.S. Steel didn't provide required records within a specified time frame after the explosion.