THE EE WAS ATTEMPTING TO PULL A PLASTIC TARP BACK FROM THE SLAG STOCK PILE. THE EE WAS ON TOP OF THE STOCKPILE STANDING ON THE TARP WHICH COVERED THE PILE. AS THE EE HELD THE TARP WITH BOTH HA NDS AND WAS STEPPING BACKWARDS HE SLIPPED AND FELL DOWN. MEDICAL EVALUATION IT HAS BEEN DETERMINED THE EE HAS A FRACTURE OF THE RIGHT ELBOW AND A POSSIBLE RIGHT ROTATOR CUFF TEAR.