A Shell operated site experienced a near miss in 2000 with a pressure filter. While preparing the filter vessel for filter element replacement, the head (lid) of the filter vessel blew off. The lid landed just feet from an operator, who was sprayed with some recovered oil residue. In January 2008, BP¿s Texas City refinery reported an incident where an employee was fatally injured after the top and associated hardware of a wash water filter separated from the main body and struck a nearby employee.