RedactedNarrative: The Coast Guard received a report that a 48-ft boat was taking on water 4-5 nm offshore while in transit from Tacoma to San Diego.  The three people onboard were unaware of the cause and indicated the bilge pumps could not keep up.  The vessel started to sink when the engines became inoperable.  The Coast Guard rescued the hypothermic individuals who had been in the water for 15-20 minutes, and the vessel had sunk.  The owner had allegedly just purchased the vessel a week earlier.