It is salt water unfortunately. There are a variety of eye witness reports on TV, about the impending collision which they avoided with Salty's restaraunt!. .. .One of the Seattle news channels now says they have home video of the ditching (not much of a surprise anymore)! . .. .Their best bet for salvaging would be to load the machine onto a barge and take it into Lake Washington and completely submerge it in fresh water (if they might be allowed to do that). This will allow the complete flushing of salt water from the aircraft, prior to lifting into the air and starting a fresh water wash-down preservation.. .. .Corrosion-X the entire aircraft as soon as it is removed from fresh water and drained and get onto the removal of all the major components and other delicate items. . .. .Radios, instruments, etc, are generally trashed by this type of immersion, but most other parts are recoverable or rebuildable. Motors were running at impact (or 3 anyway?), so that will probably be the end of them. Of course, one of the biggest parts is inspecting everything to ensure you've covered any potential damage and potentially corrosive residue. . .. .Biggest challenge is to ensure that the aircraft isn't seriously damaged during the recovery phase, but they should be able to get to it OK where it's at. . .. .With the extent of the restoration done to this machine, it is possible it will be flying again pretty rapidly. I certainly hope so.