Safe Operation of Vacuum Trucks Handling Flammable and Combustible Liquids in Petroleum Service Provides information concerning the safe operation of vacuum trucks engaged in all aspects of handling fl ammable and combustible liquids, associated waste water, produced wate r, sour water, basic sediment and water (BS&W), caustics, spent acids, or other fluids stemming from petroleum operations, produc ts, powders, and the hazard of dust explosions. This publication discusses the type s of vacuum pumps and cargo tanks associated with vacuum truck oper ations, the common hazards associated with those vacuum truck operations, an d representative safe work practices and precautions to help prevent accide nts and injuries. Appendix G provides brief descriptions of a va riety of incidents involving vacuum trucks, including offloading into open areas. These ma y be useful in reviewing specific operating procedures or developing mate rials for safety meetings or pre - job briefings