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Minnesota River water samples | by MN Pollution Control Agency
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Minnesota River water samples

Water samples illustrate the current sediment conditions and goal for rivers in the Minnesota River Basin. Far right: The worst sediment conditions happen after storm events, when heavy rains erode unprotected topsoil and cause high river flows that drive excessive streambank erosion. Second from right: The average sediment condition over the last several years exceeds the water clarity goal. Third from right: Water at the goal provides healthy conditions for fish and reduces downstream sediment issues like dredging. Far left: Tap water, for comparison, is far cleaner than the goal. (Note: Samples are from the Le Sueur River a tributary to the Minnesota River.)


The Minnesota River and its tributaries suffer from excess sediment and other pollutants. Learn more about the issues and how the MPCA and local partners are working to improve and protect water quality in the Minnesota River Basin:

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Uploaded on July 22, 2019