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Higher mercury in St Louis River walleyes in eastern Minnesota comes from old pollution
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Higher mercury in St Louis River walleyes in eastern Minnesota comes from old pollution
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Higher mercury in St. Louis River walleyes comes from old pollution
A new study shows mercury in the estuary sediment was left by industry decades ago. It continues to build up in fish, making some unsafe to eat. 6:05 am, Apr. 17, 2021 ×
Clough Island in the St. Louis River estuary. A new study has found that the source of unusually high mercury levels in estuary fish is legacy mercury from decades ago that remains in the sediment. (Bob King/ News Tribune file / 2012)
For decades now, health officials in Minnesota and Wisconsin have warned people to limit their meals of walleyes from the St. Louis River estuary in Duluth and Superior because of unsafe levels of toxic mercury.
The work is expected to begin in early summer of this year. 2:55 pm, Jan. 27, 2021 ×
The ponds behind Erie Pier on Duluth s harborfront will be cleaned up in a $16 million project funded jointly by state and federal agencies. The area holds 45,000 cubic yards of contaminated sediment. (Steve Kuchera / 2016 file / News Tribune)
The U.S. Environmental Protection Agency and Minnesota Pollution Control Agency have agreed to a $16 million cleanup plan for the highly contaminated Erie Pier ponds area along Duluth’s harborfront.
The project agreement will remove 45,000 cubic yards of contaminated sediment that built up in the area over the years. That’s about 3,200 large dump truck loads of material.
Duluth sediment cleanup deal inked January 28, 2021, by Eldin Ganic
The U.S. EPA and Minnesota Pollution Control Agency have signed a $16 million project agreement to remediate contaminated sediment in the “ponds behind Erie Pier,” two backwater ponds surrounded by shallow marsh wetlands in Duluth, Minnesota.
“EPA’s partnership with Minnesota continues to produce results in the St. Louis River Area of Concern,” said acting EPA Regional Administrator, Cheryl Newton. “This sediment cleanup will address a century’s worth of contamination, protecting public health and aquatic life while improving access to a port that is critical to the region’s economy.”
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