The site is a trucking terminal located within an industrial park at 33 Silva Lane in Dracut, Massachusetts. The terminal is operated by Old Dominion Freight Line, Inc. (Old Dominion). A trailer containing hazardous materials had been scheduled to be shipped out on July 27, but was reportedly delayed overnight due to traffic restrictions relating to the Democratic National Convention. The trailer contained five 3300-pound totes of 40% NaOH and two 500-pound drums of 33% hydrogen peroxide. During the early morning of July 28, 2004, the trailer caught fire. The fire was extinguished by the Dracut Fire Department. Hazardous material cleanup activities were conducted by Old Dominion and their contractor, under the oversight of DEP and EPA responders.