Environmental Issues
Lake Minnetonka's Environmental issues became prevalent after curly-leaf pondweed (Potamogeton crispus L.) was discovered in its waters in 1900. Purple Loosestrife was discovered in the Lake in 1940 and Eurasian Water Milfoil (Myriophyllum spicatum) in 1987. In 2010, Zebra Mussels were also discovered in the Lake.
Lake Minnetonka also experienced problems with pollution from sewage and fertilizer runoff until the 1970s. The Lake is now closely monitored.
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