Abstract: On July 22, 1997, Employees #1 through #3, of Koopers Wood Treatment Plant, had been hired by a company involved in HAZMAT site remediation. They were removing waste creosote from a 10, 000 gal tank and pumping it into 55 gal drums where it was solidified by mixing it with cat litter. Employee #1 was responsible for capping the drums once they filled and ready for disposal in a landfill. Employees #2 and #3 had gone into the large tank to install pumps and hoses for pumping out the creosote. During the operation, Employee #1 sustained chemical burns to his arms, and Employees #2 and #3 sustained chemical burns to their arms, necks, and faces. Employee #1 was treated by his personal doctor; Employees #2 and #3 did not seek treatment. All three workers were wearing appropriate body protection before beginning work. Although exposure to sunlight worsened their burns, no work time was lost.