RedactedNarrative: On 08/31/14 at approximately 1155, Unit 1, identified as a 1993 4Winns with Illinois registration of IL 3255 JW, on the Rock River near the Rockvale Terrace in Ogle County. Unit 1 was towing a subject on a knee board at approximately 18MPH. While being towed, Victim fell from the knee board and the board struck her in the back of the head. When the knee board struck Victim, it caused a laceration to the back of Victim''s head. Operator operated to Victim and Victim was placed in the boat. 911 was called and operator operated to the Lowden State Park Ramp. Victim was taken by ambulance to KSB Hospital in Dixon for treatment.