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Geotechnical Egineering News tagged with [mining wastewater]

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After Colorado spill, attention turns to threat of old mines
RT   18 August 2015   USA   Colorado  
Animas River in Colorado, August 2015
<p>Colorado is scrambling to address 230 abandoned mines, which leak enough heavy metals to rival the Gold King disaster every two days. Tens of thousands of old mines dot public lands in the western US, and 80 percent are in need of remediation. Environmental ...
Filed under: Mining News
EPA test results reveal Colorado spill's toxic stew as thousands of other abandoned mines leak
Star Tribune   13 August 2015   USA   Colorado  
people kayak in the Animas River near Durango, Colo
<p>SILVERTON, Colorado &mdash; It will take many years and many millions of dollars simply to manage and not even remove the toxic wastewater from an abandoned mine that unleashed a 100-mile-long torrent of heavy metals into Western rivers and has likely reached ...
Filed under: Mining News
Mount Polley spill shows increase in temperature, sediment levels: UNBC report
CBCnews   05 May 2015   Canada   British Columbia  
<p>A study on the impacts of a tailings pond spill at the Mount Polley mine last summer shows a number of changes to the Quesnel Lake ecosystem, but researchers say it's still too early to determine the long term impacts on fish and drinking water.</p> <p>The ...