RedactedNarrative: Vessel #1 was west bound plowing approximately 80 yards from shore in 5 1/2 feet of water.  The vessel capsized to the starboard side ejecting all occupants and a dog out of the vessel.  The vessel came to float upside down.  
  
  The operator reported that occupant #4 had fallen from his seat to the starboard side of the vessel.  This caused occupant #2 and #3 to shift and fall from their lawn chairs toward the starboard side of the vessel.  The shift in weight caused the vessel to capsize.
  
  The vessel had a custom elevated deck which was not designed by the manufacturer.  The vessel also had two custom seats not designed by the manufacturer.  An examination of the front seat revealed that the mount had pulled from the deck and was leaning toward the starboard side of the vessel.
  The operator of the vessel was arrested for BUI and tested BAC 0.131 g/210 ml of breath.