Abstract: At approximately 2:00 p.m. on June 23, 2006, a truck driver, was unloading sulfuric acid. Instead of securing the 2-in. hose by using cam locks, he asked Employee #1 to hold it in place. One end of the hose was connected to the trailer and the other end was over the top manhole hatch of the 1,400 gallon flat-bottom sulfuric acid tank, located inside a secondary containment tank. After he finished unloading the acid, the truck driver opened the air valve to blow some air through the hose to clear it of any residual acid. The hose started vibrating and Employee #1 let it go. Employee #1 turned away and tried to leave the area, when the hose came off and sprayed him with acid. Employee #1 was admitted to Sherman Oaks Burn Center for treatment of third degree burns on his back, arms, chest, left thigh, face, and elbows.