I drifted the Snoqualmie with the family this past weekend, and found where the recent floods have ripped loose some of the floating barrier from a construction site upstream. 100 feet of this stuff is lodged in the brush. This is a pretty large amount of crap, and I want to get the party responsible to clean it up. I know where the mess is, I know who is responsible for it, what agency should I go to to complain to get a cleanup order going?