Recent content from Chloe Johnson
Administrative Law Judge James E. LaFave wrote that PolyMet's plan to block tailings seepage with bentonite clay would not meet state rules for reactive mine waste.
In a draft list of violations released in August, the EPA said Smith Foundry had been polluting its neighborhood's air and breaking air quality limits for five years.
The city fixed the problem after Jim Hagen's years of complaints. Now he wants others to get the same relief.
Humans created many of the state's deepest water bodies.
The Environmental Protection Agency made a surprise visit to the iron foundry in May, and said it found a raft of problems. But Minnesota regulators insist they don't have the data to show Smith released excess soot.
Already impaired by taconite mine pollution, Birch Lake could face new threats from a proposed copper-nickel mine, environmentalists say.
The mining company will be allowed to sink six holes to explore state minerals near Birch Lake in St. Louis County.
At least two sites — Duluth airport and the National Guard's Camp Ripley — are already suspects for contamination.
Twin Metals asked to sink six new holes in northeastern Minnesota as it searches for copper, nickel and platinum group metals.
Scientists have known for years that treating water with chlorine or other chemicals can create toxic compounds; now, four teams will use EPA grants to find alternatives.