RedactedNarrative: Owner's boat was rafted with other vessels in Cocktail on Lake Lanier.  The water was calm.  Winds were calm.  Witnesses stated victim lost her balance and fell from top deck and hit the bottom deck of vessel.  Witnesses said she had been consuming alcoholic beverages.  Hall County Fire/Rescue administered first aid to her on the vessel.  Victim was transported to an ambulance at the boat ramp at Russell Bridge by Hall County's rescue boat.  Hall County EMT stated he thought she had a concussion and sprained/bruised right shoulder.