PolyMet study: Water from mine site would need 500 years of treatment
Published 10/05/2013, Duluth News Tribune
If the PolyMet copper-nickel mine is built and operates north of Hoyt Lakes, water that runs off the site will have to be treated for hundreds of years or more to remove sulfate and metals to meet water quality regulations.Word count: 1154
The full article is available to newspaper subscribers. If you are a subscriber please log in to continue reading.