RedactedNarrative: On September 12, 2015 I was on patrol in Cecil County, MD. At approximately 1230hrs I heard over the radio that Corporal was enroute to the North East river for a boat fire.  I began to make my way toward that area.  I received information that the occupant of the boat was being transported to land by the Coast Guard to Hances Point Marina.  Once at Hances Point Marina, I found out that the boater was taken to Jackson Marina.
  
   At approximately 1320hrs I arrived at Jackson Marina to meet the vessel owner. EMS was on scene, from North East Fire Company #492. I spoke to EMT, she informed me Operator was ok and he refused to be checked out.  She provided Operator with some water.   I spoke to Operator and asked if he was ok, he stated he was ok.  He appears to be shaken up and upset. 
  
   I asked Operator what had happened today on the boat. Operator stated he was down at Jackson Marina working on his boat.  He had begun to winterize the boat because with his schedule he wouldn't be able to work on the boat until sometime in November. He had treated approximately 100 gallons of diesel fuel with fuel additive and flushed the heat exchanger on the generator and added coolant. Generator was new within the past month and had no problems. 
   He decided to take the boat on a short run to mix the fuel additive through the engines. He left the marina with his dog Pippa sometime after 1100hrs.  On the way down the North East River heading towards Turkey Point, Doug went into the cabin to grab a rain coat because of the light intermittent rain.  He did not notice anything at that time.  He did state he had his generator running but the air conditioner was not on.
  
   As he was heading back to the Marina, just before buoy #2 on the North East river, Operator began to smell smoke.  He left the bridge and headed down to the cabin.  He opened the door to the saloon and smoke began to pour out.  He did not notice smoke coming from the floor boards.  He closed the door and headed back to the bridge.  Operator then called for help over his VHF Radio.  After calling out for help, Operator came down from the bridge grabbed his dog and a life vest and headed to the bow. Grabbing a line from the bow of the boat he then lowered himself and the dog into the water. A Good Samaritan stopped and took Operator and his dog aboard their boat.
   
   Operator didn't remember doing anything different then what he normally does when winterizing.  The engine access panels were closed and the carpet stayed pulled back.  I asked when the boat was used last.  Operator stated it was used last weekend over Labor Day.  Operator has owned the vessel "Good Time Girl" for the past 11 years. After talking to Operator, I was informed by the Coast Guard that the vessel had sunk just outside of buoy #4 on the North East River. 
  
   Sea Tow contacted me at approximately 1420hrs to talk to Operator about getting his insurance policy number so they can begin the paperwork to salvage the vessel from the bottom of the North East River.
  
   At approximately 1545hrs I cleared Jackson Marina and headed over to Charlestown's Community boat ramp to meet Cpl..  Cpl. was following Sea Tow by boat, back to the ramp in Charlestown.  Sea Tow was towing back the fuel tank that had floated to the surface once the vessel sunk.  Once the fuel tank was on land, Sea Tow began to empty the remaining diesel fuel from the tank.  Sea Tow was going to take the fuel tank and would be salvaging the vessel from the river. At approximately 1700hrs I cleared from Charlestown Community boat ramp. 
  
   All events occured in Cecil County, Maryland.
   