RedactedNarrative: On 05/16/2020, at about 1521 hours, Deputy and I were patrolling the area of Eagle''s nest on Saguaro Lake, Mesa, AZ, 85215 when we noticed a white/blue Nordic Heat boat traveling at a high rate of speed causing white cresting water (wake) to form at the front of his boat in a no wake zone. Deputy and I activated the lights and sirens on our MCSO patrol boat when the boat continued at its speed. While passing us in the no wake zone the occupants were waving at us and pointing to the rear of their boat. 
  
  The Nordic vessel stopped their movement around the skunk wash area of Saguaro Lake to inform us that they had a female passenger that had sustained serious propeller cut injuries to her right leg. I could see that two other individuals on the boat had wrapped the injured female patient''s right leg with numerous towels in an attempt to stop the bleeding. Based on the information I had at the time I instructed the operator of the Nordic to follow to the Saguaro Lake Aid station and requested medical services. 
  
  I could see that Victim had severe 3 to 4 inch cuts deep from her right calf to her right buttocks.
  
  
  All passengers told me that while in the area of Sandy Beach/Saguaro Lake Victim was in the water near the stern of the boat. Operator started the propeller on the boat that caused victim to be pulled into it and started cutting her right leg. Subject1 grabbed Victim by the arms and pulled her to the side of the boat where he pulled her onto the boat. Two people who were close and nurses quickly responded to Operator''s boat and assisted with immediate medical treatment. 
  
  I conducted a OUI investigation with Operator that resulted with no clues of impairment and a PBT of .006 BrAC.
  
  Victim was airlifted to Scottsdale Osborn Hospital with non-life threatening injuries via AirEvac. 
  
  This concluded the investigation. 
  
  Nothing further.