Trempealeau Co. shuts down sand mine

Trempealeau County regulators have shut down a frack sand mine that they say was dumping polluted wastewater into an unlined pond.

WI DNR hires new sand mine engineers

The Wisconsin Department of Natural Resources has two new air engineers who will specialize in sand mine environmental compliance.

Tribe critical of mine has own pollution issues

Federal records show a Lake Superior Chippewa band critical about the possible environmental impact of a proposed iron ore mine in northwestern Wisconsin has its own pollution issues.