New CSB video shows how Tesoro Refinery catastrophe happened
The Chemical Safety Board (CSB) has released a new computer animation recreating the explosion and fire that killed seven workers at the Tesoro Refinery in Anacortes, Washington on April 2, 2010.
The incident occurred 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 refinery.