Tesoro Refinery acid spill caused by loose fitting
Approximately 84,000 pounds of sulfuric acid spilled from the Tesoro Refinery earlier this year because of insufficient tightening between a tube and a compression joint at a sulfuric acid sampling station, according to the U.S. Chemical Safety Board (CSB), which investigated the incident.
The spill on Feb. 12, 2014 burned two workers in the refinery’s alkylation unit, who were transported to the nearest hospital burn unit by helicopter.