The mine would require what critics say is
essentially perpetual water treatment — a first in Minnesota’s long
history of mining — to remove pollutants and heavy metals that would
otherwise flow into nearby streams and rivers and eventually Lake
Superior, according to a draft environmental impact statement.
The analysis, which regulators expect to
release for public review in November, was prepared as part of the
state’s review of a mining complex proposed by PolyMet Mining Corp., at a
site near Hoyt Lakes.
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