The EE was fueling up a highway dump truck when the EE fell off of the fuel station platform. The fueling system has a platform to stand on while turning on/off the fuel pump as well as reading gallons used. The platform is 16 1/2"" tall 51 1/2"" W and 24"" deep. The EE stepped down from platform then stepped on an 8X8 block of wood. Wood shifted, EE fell onto pavement hit head/body.