Saturday, July 13, 2013

Pollution worries abound in frac sand waste streams

Article by: TONY KENNEDY , Star Tribune Updated: July 13, 2013 - 6:38 AM

In Wisconsin, frac-sand mines in Trempealeau, Buffalo and Barron counties are creating unstable piles of sand waste and illicit wastewater runoff.

In Minnesota, state health officials are studying two chemicals widely used in frac-sand processing as contaminants of “emerging concern.”

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Tony Kennedy • 612-673-4213