O1 OF THE ABOVE BOAT WAS CRUISING INTO THE SHORE AREA OF LAKE SHARPE.  01 TOLD WCO 1 THAT HE WAS TRAVELING APPROXIMATELY 10-15 MPH ABOUT 35 YARDS FROM THE SHORE AND HIT A SUMERGED ROCK PILE.  BOAT WAS LODGED ON ROCK PILE AND TAKING ON WATER WHEN WCO 1 ARRIVED.  THE PIERRE RESCUE SQUAD PULLED THE BOAT OFF OF THE ROCK PILE AND O1 ATTEMPTED TO DRIVE BOAT TO NEAREST RAMP.  THE BOAT MOTOR DIED AND WAS TOWED TO RAMP WHILE O1 CONTINUED TO EVACUATE WATER FROM THE VESSEL.  AT RAMP WCO 1 AND WCO 2 OBSERVED AN APPROXIMATELY  30 INCH GASH TO THE UNDERSIDE OF THE FIBERGLASS BOAT FROM THE COLLISION WITH THE SUBMERGED ROCK PILE.  THE VESSEL'S SELF CONTAINED BILGE PUMP COULD NOT KEEP UP THE INFLOW OF WATER AND O1 HAD TO BAIL WATER WITH A BUCKET TO KEEP VESSEL FROM SINKING.  VESSEL WAS LOADED AT THE POLO FIELD BOAT RAMP.
PIERRE                        