RedactedNarrative: Just before 2000 hours on Thursday, July 18, 2019, I was on a patrol boat exiting the Bear Lake State Park Marina when I was flagged down by subject who was operating a boat. Subject asked me if I had any oxygen and then told me his (step) daughter was experiencing carbon monoxide poisoning. I contacted the Rich County Sheriff's Office dispatcher and asked to have an ambulance respond to the marina. As we entered the marina I saw subject2 sitting on the dock next to his box. Subject2 in a retired EMT. I asked Subject2 if he had oxygen. When he said he did, I had Subject dock next to Subject2's boat while I notified dispatch of our location.
  
  By the time I got my boat tied up Victim was receiving oxygen. Once I determined that Victim was receiving care, I went to the other end of the dock to open the gate for the responding EMS personnel.
  
  Victim was evaluated by EMS, placed on a gurney, and then moved to the ambulance.
  
  On the morning of Friday, July 19, 2019, I contacted Subject by phone. He told me that Victim had been taken to the hospital (Logan Regional) where she was treated for carbon monoxide poisoning and then released. I asked Subject if hypothermia had been involved (as I had been told by Ranger). Subject said that there had been some signs of hypothermia which had resulted from Victim playing in the water and not realizing how cold she was getting.
  
  Conclusion:
  Subject's boat is a 2017 Yamaha SAT1800. This boat has rear-facing seats at the stern. Subject told me that he and Victim had been sitting at the back of the boat (rear seats/swim deck area) when she had passed out. Subject said that her face was bright red which led him to suspect CO poisoning. It appears likely that the CO had pooled in that area.
  