Accident Description

Accident: Tesoro Anacortes Refinery Fatal Explosion and Fire

Location: Location: Anacortes, WA

Accident Occurred On: 04/02/2010 | Final Report Released On: 05/01/2014

Accident Type: Oil and Refining - Fire and Explosion

Investigation Status: The CSB's final report was approved 3-0 at a public meeting on May 1, 2014.

An explosion and fire led to the fatal injury of seven employees when a nearly forty-year-old heat exchanger catastrophically failed during a maintenance operation to switch a process stream between two parallel banks of exchangers at the Tesoro refinery in Anacortes, Washington