RedactedNarrative: Pontoon boat operating north on Lake Eau Galle at a speed estimated to be 10-15mph.  Three passengers were sitting on the bow of the boat with their feet hanging over the very front of the boat over the water.  One passenger lost his balance falling into the water and the boat and motor ran him over.  He was retrieved from the water and taken by air ambulance to Luther Hospital in Eau Claire WI with life threatening injuries.  Victim was drinking alcohol prior to falling into the water but did survive the accident with medical treatment.