A co-worker of mine who lives up around Edmonds saw this in a small creek in her backyard.

She said the creek went white one day. She asked her neighbors what was going on and a few of them went for a walk around the neighborhood and tracked it down to new townhouse construction going on up the road. They were apparently dumping paint into the creek.

She said she called the police about it but I never followed up to see what ever came out of it.

Gotta love those real estate developers!