RedactedNarrative: On January 20th 2017 at approximately 1145 a vessel (DL7388AK) was on Haven Lake in Milford Delaware.  The vessel was utilizing an electric outboard tiller motor while O1 was pleasure cruising around the lake.  
  
  O1 reached back to adjust his direction of travel on the motor.  When O1 did so, he fell back into the Port side of the stern of the vessel.  When O1 did so, it caused the stern to dip below the level of the water causing the vessel to take on water.  
  
  The vessel rapidly filled with water.  Before the vessel completely submerged O1 exited the vessel.  At this time O1 was not wearing a PFD and stated that he was unable to get it on while in the water.  O1 used the PFD onboard to provide floatation.  O1 stated that he was in the water for approximately 15 minutes before he began to call for help.  
  
  At approximately 1204 hours W1 heard O1''s calls for help and called 911.  W1 took a kayak and paddled out to O1 to provide assistance.  O1 was able to hold onto W1''s kayak until further assistance arrived.  Fish and Wildlife Agents arrived on scene at approximately 1215 hours and assisted in the recovery of O1 and his vessel.  The Carlisle Fire Company arrived on scene at approximately 1220 hours and launched a rescue vessel.  At 1227 hours O1 was out of the water and being looked at by Emergency Medical Personnel.  O1 was transported to Milford Memorial Hospital by ambulance. 
  
   O1 was treated for hypothermia and released the following day.  O1''s vessel was recovered by Fish and Wildlife Agents at approximately 1254 hours.  The vessel sustained no damage.
  