Resources Friends of the Boundary Waters Wilderness
SULFIDE MINING GENERaL. Porphyry Mines and Water Quality (Study) A peerreviewed study found copper sulfide mines have a severe impacts on drinking water aquifers, contamination of farmland, contamination and loss of fish and wildlife and their habitat, and risks to public health. In some cases, water quality impacts were so severe that acid mine drainage at at the mine site will