MPCA: Water that flows into BWCA watershed exceeds sulfate levels
The MPCA found Birch Lake and the Dunka River, which flow into the Rainy River Watershed in the Superior National Forest, exceed state-regulated sulfate levels.
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The MPCA found Birch Lake and the Dunka River, which flow into the Rainy River Watershed in the Superior National Forest, exceed state-regulated sulfate levels.
A group opposed to mining near the Boundary Waters hopes that adding Birch Lake will make permitting a copper-nickel mine more difficult.
State officials are proposing to add 54 lakes and streams to the list of Minnesota waters considered impaired because of pollution. The list includes a large lake on the border of the Boundary Waters Canoe Area Wilderness that exceeds the state’s wild rice sulfate standard.
REGIONAL— Would you like to help monitor the water quality in one of your favorite lakes or streams here in northern St. Louis or Lake counties? Then the Minnesota Pollution Control Agency …