RedactedNarrative: Operator of PWC drifting (less than 3 knots) near dock, talking to family members.  Victim, unknowingly to operator, dove off pier, swam towards PWC and then submerged near PWC.  Victim's hair was sucked into the water intake of PWC.  Victim unable to free herself...Family members flipped the PWC and freed victim.  Victim transported to Atlantic General Hospital in Maryland, then airlifted to Inova Hospital in Fairfax, Virginia.