RedactedNarrative: Occupants stated that they were anchored out from Pier 587 and were anchored while they were fishing.  They said that a big wave came and they took on water and more large waves followed.  Occupants stated that the boat was anchored and the waves came over the back of the boat.  Occupant 1 stated that he turned on the pump but it was not pumping the water out fast enough.  They drifted to Pier 587 as they were taking on water and started to remove some of their belongings.  A passing kayaker called in the incident.  Water Safety Patrol was called to assist.  The boat was turned over and Water Safety Patrol officers pulled the boat to the pier, where Occupant 1  loaded the boat onto the trailer. 