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Aquatic Plant Management Activities

LAKE COUNTY, CA — In order to maintain the beneficial uses of the water 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 structures in the lake and extending 50 feet lakeward;
  • 50 foot wide boat lanes perpendicular to the shoreline, starting from the shoreline lane and extending into the lake proper for 1,000 feet to 2,000 feet.  Boat lanes will be marked with green buoys starboard and red buoys port.
  • Recreational areas for swimming or fishing.

The specific treatment areas are posted on the County’s website at www.nolakeweeds.com. 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 carolyn.ruttan@lakecountyca.gov 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 through the Lake County Water Resources Office.

Eurasian Water Milfoil  Curly Leaf Pondweed  Sago Pondweed 
 Eurasian Water Milfoil Curly Leaf Pondweed  Sago Pondweed 

For additional information pertaining to County of Lake aquatic plant management activities please visit www.nolakeweeds.com or contact the Water Resources Department at 263-2344.