I was directed to the vessel that was involved in the incident (Vessel #1) and spoke with the vessel operator. Operator stated he was with another boat, all neighbors, and was operating his boat in the Marseilles Lock Channel with 2 females on a tube. He stated there was a wake from another vessel, and as he was heading east the water from the wake projected the 2 female tubers off the tube and into the rocks on the north bank of the channel. The passengers in the boat with Operator stated they observed the 2 females strike their heads as they landed on the bank. Operator then turned around and they went back to the bank to help the 2 injured females. They put them in their boat and returned to the boat dock at Illini State Park to call for EMS. When EMS arrived (Marseilles Fire/Rescue) the 2 injured females and immediate family members went to the hospital, and the other passengers stayed to answer questions about the incident. I then gathered the necessary information and proceeded to the hospital to further investigate the incident. At the Hospital, I asked Operator if he had been drinking. He stated he did drink 2 beers hours before this incident (before lunch) and had not had any drinks after lunch. I asked him to submit to a PBT, and he complied and produced a breath sample of .01% two and a half hours after the incident.  Operator was issued a written warning for having 1 person over capacity in the boat-9 passengers for 8 person capacity.
Marseilles                    