RedactedNarrative: ON 08-26-17 AT APPROXIMATELY 1220 HOURS, OPERATOR WAS TRAVELLING NORTH ON THE COLORADO RIVER BY SITE 22 OFF OF BOUNDARY CONE RD AT APPROXIMATELY 30MPH. WHEN HE MADE A SHARP RIGHT TURN, CAUSING HIM TO BE EJECTED OFF OF THE PWC. He ADVISED THAT WHEN HE WAS EJECTED HE LANDED ON HIS BACK. He WAS COMPLANING OF BACK PAIN, SO HE WAS DRAGGED TO SHORE AND EMS WAS NOTIFIED.