RedactedNarrative:    On June 21st, 2017, WCO received a call from Lake County Communications at 7:37 PM indicating a boat accident occurred at 6173 Crescent Ln. on Lake Madison, SD.  The boat accident occurred at approximately 7:18 PM according to the SO reports.  The SO responded to the scene of the accident and documented all persons involved.  To the knowledge of the SO and interviews by WCO, O1 was operating V1 accompanied by P1.  
  
  O1 was pulling three individuals, P2, P3, and P4, on a “Super Mable” tube with an affixed 60’ rope tied off to a cleat on V1.  During interviews, WCO determined P1 was intoxicated, unknown PBT, and was micromanaging every move O1 was doing while driving V1.  
  
  O1 stated that he did as he was told by P1 on how to operate because this was the first time driving V1 and he wanted to drive V1 again in the future.  Just prior to the accident, O1 was travelling westbound at approximately 30 mph.  At this time, V1 was pulling P2, P3, and P4 on the tube.  O1 was driving V1 approximately 60-75’ from the edge of the cabin owners docks.  As V1 was near the dock, O1 under the direction of P1 made a subtle turn to port travelling southwest at this time.  
  
  O1 under the direction of P1 then made a hard turn to starboard maintaining the approximate speed of 30 mph.  During this turn to starboard, the tube which was being pulled by V1 with a 60’ tubing rope was forced towards the direction of the docks which were all affixed to the shoreline and well under the 60’ standard required dock length in South Dakota.  
  
  As O1 finished turning V1 towards starboard, the tube had crashed into the dock.  The collision occurred at the end of the dock furthest from the shoreline.  The tube was angled slightly at the time of the collision and the passengers were seated as follows:  P2 was seated on the tube closest to the dock, P3 was seated in the middle, and P4 was seated on the outside in relationship to the dock.  At the time of the collision, P2, P3, and P4 were all thrown from the tube and were floating in the water.  
  
  P2, P3, and P4 were all wearing lifejackets at the time of the collision.  O1 realized the collision occurred and throttled down V1.  O1 removed his shoes and other miscellaneous clothing and entered the water to recover P2.  P4 recovered P3 from the water and brought her to the dock.  P4 left the scene shortly after recovering P3.  O1 recovered P2 and brought her to the beach.  Shortly after, O1 ran into the cabin to put on dry clothes and to call 911.  During the rescues from the water, P1 remained in V1 stunned and motionless.  Eventually P1 walked V1 onto the lift and secured V1. 
   
  At approximately 7:30 PM, Lake County Ambulance Service arrived on scene and transported P2 and P3 to Madison Regional Health in Madison, SD for their injuries noted above.  P2 was air lifted from Madison Regional Health to the Avera Hospital in Sioux Falls due to the severity of her injuries.  
   
  The SO left the scene of the accident at approximately 8:00 PM, and arrived at Madison Regional Health to speak with the injured parties.  SO was able to make contact with P3 and P4 and discussed details to the accident and observed their injuries (See SO Report).  SO completed their duties at the hospital at approximately 9:00 PM.
   
  During follow up interviews, WCO heard from all operators and passengers involved that P1 had just as much responsibility in the crash as O1.  P1 was over the shoulder of O1 instructing and manipulating how O1 was operating.  All parties involved including P1 stated that his intoxication level was beyond the legal limit of driving V1.  WCO believes the lack of judgment on O1, and the level of intoxication of P1 contributed to the accident.  
   
  ***Please see the attached diagram of the accident.
     
  