RedactedNarrative: Notification and Observation: 
  
  On the listed time and date, I, Deputy responded to a possible Boat Explosion at Quail Lake State Park. I arrived on scene and observed a Bombardier Sea Doo GTS with extensive damage to the Bow and Stern loaded on a trailer in the parking lot. I could also see black soot on the PWC just below the steering column. I recognized the black soot from training and experience was from an extinguished fire or explosion. I observed the seat laying on its side. I could see the engine compartment in plain view. I observed a sparkplug was not attached to the motor. The sparkplug and sparkplug wire was hanging over the side of the PWC 
  
  I made contact with the owner of the PWC who I identified by his Utah Drivers License. OWNER explained the PWC had exploded while he was trying to help his friends start it. OWNER stated the explosion threw him off the machine. 
  
  I asked OWNER if his friends or he needed medical attention. OWNER told me no. I asked OWNER where his two friends were located. OWNER explained they were on the beach adjacent to our location. I explained to OWNER that I needed to speak with them about the incident. OWNER proceeded to retrieve his friends from the beach. 
  
  OWNER told me he had just recently purchased the PWC and this was his first time using them. 
  
  I made contact with OPERATOR who identified himself to me. I asked OPERATOR to explain to me what had happened. OPERATOR stated subject and himself had been riding his friend’s vessel for approximately twenty minutes on Quail Lake Reservoir. OPERATOR explained the SEADOO quit running. OPERATOR stated he tried to start it several times and it would not turn over. OPERATOR stated OWNER pulled up next to them and tried to start it. OPERATOR stated when OWNER attempted to start it, all of sudden there was an explosion. OPERATOR stated he was thrown off the Seadoo into the water from the explosion. OPERATOR told me the Seadoo was on fire after the explosion. According to OPERATOR, OWNER and himself rolled the Seadoo over into the lake to put the fire out. See OPERATOR'S witness statement for further information.