Why not drive out to Castaic and run in some cleaner water?
http://www.socaljetboats.com/index.php/topic,1414.50.html
Ignore the thread title; changed from Pyramid to Castaic.

I think this is the list as I see it:
flytime
UNDONE (if not sick)
beerjet
alexNla
Toes on the nose
Wanabe (boatless)
rogers roost (?)