Tips and tales about keeping water clean
In 2020, the MPCA removed Forest Lake, Tanners Lake (Oakdale), Owasso (Roseville/Shoreview), Johanna (Arden Hills) and eight lakes in northern Minnesota from the state’s impaired waters list. This was the first time in Minnesota history that any lake or river recovered from a mercury impairment.
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The short answer is, it depends.
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DEAR WATERSHED EXPERT: What is the leading cause of water pollution in Minnesota? DEAR WONDERING WATER-LOVER: You might be surprised to learn that mercury from the air is, by far, the leading source of pollution in our lakes and rivers. Ninety-nine percent of the mercury in our lakes and rivers comes from atmospheric deposition. This…
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Data shows that 40% of Minnesota lakes, rivers and streams are classified as impaired, and the East Metro and St. Croix Valley are no exception.
Read MoreYou might be surprised to learn that mercury from the air is, by far, the leading cause of pollution in our Minnesota lakes and rivers.
Read MoreIt turns out that atmospheric deposition (mercury in the air that falls down onto the land and water) supplies more than 99.5% of the mercury getting into fish.
Read MoreMinnesota has reduced its mercury emissions by 70% in the last 13 years.
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East Metro Water 