Fish consumption advisory issued for Piedmont Pond

Montana Fish, Wildlife & Parks has issued a fish consumption advisory for Piedmont Pond, south of Whitehall.

The Montana Bureau of Mines and Geology (MBMG) conducted water sampling in the area as a part of their groundwater investigation of the Upper Jefferson Valley. They discovered elevated concentrations of arsenic in the pond and an adjacent monitoring well. The concentrations of arsenic found in the pond exceeded the Montana Department of Environmental Quality's (DEQ) numeric water quality threshold for human health, while the adjacent well had concentrations just below the human health t...