Completed Investigations

Location: Martinez, CA
Final Report Released On: 08/02/2016
A sulfuric acid spill on February 12, 2014, burned two workers in the refinery’s alkylation unit, who were transported to the nearest hospital burn unit by life flight. The incident occurred when...
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Final Report Released On: 04/20/2016
On April 20, 2010, a sudden explosion and fire occurred on the oil rig. The accident resulted in the deaths of 11 workers and caused a massive, ongoing oil spill into the Gulf of Mexico. The rig...
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Location: West, TX
Final Report Released On: 01/28/2016
A massive explosion at a fertilizer storage and distribution facility fatally injured twelve volunteer firefighters, two members of the public and caused hundreds of injuries. ...
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Location: Bayamón, PR
Final Report Released On: 10/21/2015
Company: Caribbean Petroleum Refining
A massive fire and explosion sent huge flames and smoke plumes into the air at the Carribean Petroleum Corporation near San Juan, Puerto Rico. The resulting pressure wave damaged surrounding buil...
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Location: Monaca, PA
Final Report Released On: 03/11/2015
Company: Horsehead Holding Company
On July 22, 2010, an explosion and fire killed two workers at the Horsehead Holding Company zinc recycling facility located in Monaca, PA. The facility recycles and purifies zinc through a high t...
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Location: Richmond, CA
Final Report Released On: 01/28/2015
Company: Chevron

An August 6, 2012, release of flammable vapor led to a fire at the Chevron Refinery in Richmond, California. The CSB released three investigation reports into this incident - an Interim Report...
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Location: Theodore, AL
Final Report Released On: 01/15/2015
Company: Millard Refrigerated Services
The CSB investigated an anhydrous ammonia release at the Millard Refrigerated Services, a warehouse and distribution center in Theodore, Alabama, 15 miles south of Mobile where more than 130 memb...
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