But there is no evidence that they are dumping stuff they don’t have a permit for. Finding 1% over background levels in a sample tells you literally nothing.
I don't think you understand that people pee lithium into their toilets too. But you didn't just read an article riling you up to being mad at the municipal sewage industry so you aren't mad at it at the moment.
Yes, and you shouldn't dump untreated municipal wastewater into rivers either? That's what we have treatment plants for. I don't get what that has to do with anything.
Which is why you shouldn't dump it in a river used for fishing? (Or any river for that matter)