RedactedNarrative: Operator was traveling north near the California side of the river when his vessel hit a sandbar near the Zoo Island area. The vessel flipped in the air ejecting both the operator and passenger,  Law Enforcement arrived along with Rural Metro medical personnel and both subjects were stabilized and transported by boat to the Yuma County Sheriff''s Office Lake Substation and air lifted to Yuma Regional Medical Center by Marine Corps Air Station Search and Rescue. Vessel was later recovered by Yuma River Tours. Contact was later made with Operator who advised me he did not have any alcohol on board his boat and did not know if his passenger had been consuming alcohol prior to getting on his boat. He advised that he could not remember the majority of that day and did not know how fast his vessel was going when it struck the sandbar.