Jim,
I haven't been back to Lake Cav since the clean up. I would hope it will take a few years to get that dirty again.
FFF,
I was speaking in the abstract about organizing a clean up. I have my heart set on heading back down to the Cowlitz or over to the Sky Saturday for some steelheading. I think it's a great idea and would encourage you and the others going to bring along trash bags and spend an hour cleaning. I'll bet if you bring extra bags you could convince people there to help out. It's the kind of spontaneous activity that you can talk people into. I do want to organize a cleanup in the Spring again. I think it would make for a great yearly tradition.