Abstract: At 1:45 p.m. on June 18, 2019, Employee #1, Employee #2 and Employee #3 were using steam to clear a clogged pipe on an asphalt surge tank and coater system. Employee #4 (the supervisor) was clearing a clogged steam line next to the other three employees. Molten 375 degree Fahrenheit asphalt erupted out of the top of the tank and fell onto all four employees. The employees suffered serious burns on multiple parts of their bodies hospitalizing all four. Some of the employees needed skin grafts. One employee suffered a stroke due to potential drug on drug interactions with anesthetic during preparation for a skin graft operation.