https://matadornetwork.com/life/3-million-gallons-toxic-sludge-just-got-dumped-colorado-river-heres-going-happen/
The Animas River Toxic Sludge Spill Is Doomed to Happen Again
"Toxic mine sludge cleanup" isn't a very sexy issue, so we don't pay much attention to it. Which is how it ends up poisoning our rivers.
toxic sludge spillanimas riveris doomed