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Shagawa Lake

Shagawa Lake is internationally known as an EPA National Eutrophication Study lake and in the 1970's was the EPA's key project for demonstrating how advanced wastewater treatment for phosphorus removal could restore degraded lakes (Horne and Goldman 1994; Welch 1992). There is renewed interest in the lake by the Minnesota Pollution Control Agency as an intensive study lake because it has not recovered as predicted, and since the wastewater treatment plant now requires upgrading.

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