RedactedNarrative: VESSEL 1 WAS NORTHBOUND ALONG THE DAM AT LAKE CARL BLACKWELL. VESSEL 1 HAD 2 PASSENGERS ON THE VESSEL AND WAS TOWING 3 MORE ON A TUBE. VESSEL 1 TURNED TO PORT (WEST), DURING THE TURN, VICTIM 1 FELL FROM THE TUBE AND STRUCK THE WATER AND INJURED THEIR ARM.  VICTIM 1 WAS TREATED AND TRANSPORTED BY LIFENET AMBULANCE TO STILLWATER MEDICAL CENTER WHERE THEY WERE TREATED AND RELEASE.  THE AREA OF THE ACCIDENT WAS APPROXIMATELY 579 FEET WEST OF THE GATED ENTRANCE ON TOP OF THE DAM AND APPROXIMATELY 1775 FEET NORTH OF THE WATER VALVE LOCATED IN THE WATER.