Accident Description

Accident: Kleen Energy Natural Gas Explosion

Location: Location: Middletown, CT

Accident Occurred On: 02/07/2010 | Final Report Released On: 06/28/2010

Accident Type: Flammable Vapor

Investigation Status: The CSB's final report was approved at a public meeting in Portland, CT, on June 28, 2010.

Six workers were fatally injured during a planned work activity to clean debris from natural gas pipes at Kleen Energy in Middletown, CT. To remove the debris, workers used natural gas at a high pressure of approximately 650 pounds per square inch. The high velocity of the natural gas flow was intended to remove any debris in the new piping. During this process, the natural gas found an ignition source and exploded.

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