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Aquatic Plant Management Activities

In order to support beneficial uses of Clear Lake, the Lake County Department of Water Resources is providing defined areas around the lake free of noxious plants.  The areas include certain:
  • Shoreline lanes parallel to the shoreline, starting from lakeward ends of structures in the lake and extending 50 - 100 feet lakeward;
  • 100 foot-wide boat lanes perpendicular to the shoreline, starting from the shoreline lane and extending for 1,000 feet to 2,000 feet into the lake.  Boat lanes will be marked with green and red buoys to be used with the 3R rule of boating – Red, Right, Return.
  • Recreational areas for swimming or fishing.

The specific treatment areas are posted on the County’s website at Your property may be close to one of these managed areas.  Management of aquatic plants entails use of aquatic herbicides. If you use lake water for irrigation or personal use, please call Water Resources at 263-2344 or email to find out about water use restrictions during the treatment.

All aquatic plant management in Clear Lake requires a permit; only licensed aquatic herbicide applicators are authorized to chemically control weeds in Clear Lake.  Permits may be obtained from the Lake County Water Resources Office.