RIMINI, Mont. — Every day many millions of gallons of water loaded with arsenic, lead and other toxic metals flow from some of the most contaminated mining sites in the U.S. and into surrounding lakes and streams without being treated, The Associated Press has found.
That torrent is poisoning aquatic life and tainting drinking water sources in Montana, California, Colorado, Oklahoma and at least five other states.
https://www.ctvnews.ca/sci-tech/fouled-waters-reveal-lasting-legacy-of-u-s-mining-industry-1.4304427