EMPLOYEE WAS OPERATING A HAUL TRUCK ON 9/9/05 & A SMALL ROCK FELL FROM THE BED OF HIS TRUCK. HE EXITED HIS TRUCK & ATTEMPTED TO ROLL THE ROCK FROM THE HAUL ROAD WHEN HE EXPERIENCED A STINGING PAIN IN HIS GROIN AREA. HE IMMEDIATELY REPORTED THE INCIDENT TO FOREMAN. HE HAS BEEN INSTRUCTED IN PROPER LIFTING TECHNIQUES & IMPORTANCE OF ALLOWING LOADERS TO CLEAN UP SPILLAGE.