Star Tribune : Once toxic soup, a Lake Superior estuary is now swim-worthy

The $186 million restoration of a section of the St. Louis River that divides Duluth and Superior, Wis., is complete, and a new era of recreation can safely begin, officials say.

​The $186 million restoration of a section of the St. Louis River that divides Duluth and Superior, Wis., is complete, and a new era of recreation can safely begin, officials say.

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