That's true what Bone states, there was a big hubbub over what was coming down the Columbia from our neighbor in the past, though some positive steps have been taken recently. San Poil should be OK, but I would fish it north of Republic if you want to keep anything. Some of the high mountain streams that go in to the San Poil and Kettle River's I've heard are great fishing. Look for one that is the outlet of a lake.