Zebra mussels found in Big Carnelian Lake

Fourteen new zebra mussel infestations were discovered in Minnesota in 2024, including Big Carnelian Lake in northern Washington County.

While news of a new zebra mussel infestation is discouraging, it is important to remember that 96% of lakes in Minnesota do NOT have zebra mussels and can still be protected from future infestations if lakeshore landowners, contractors, boaters, and anglers commit to taking action. 

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Tracking the health of lakes in Washington County

During 2020, Washington Conservation District monitored water quality on 71 lakes in Washington County. Here’s what recent data tell us about five local lakes.

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