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Photo Credit Lyrinda Snyderman

Quagga and Zebra Mussel Infested Water Bodies in California


  Lake Havasu   San Bernardino   January 2007
  Colorado River   San Bernardino   January 2007
  Copper Basin Reservoir   Riverside   March 2007
  Lake Mathews   Riverside   August 2007
  Skinner, Lake   Riverside   August 2007
  Lower Otay Lake   San Diego   August 2007
  San Vicente Reservoir   San Diego   August 2007
  Murray, Lake   San Diego   September 2007
  Miramar, Lake   San Diego   December 2007
  El Capitan Lake   San Diego   January 2008
  Sweetwater Reservoir   San Diego   December 2007
  Dixon Lake   San Diego   August 2007
  Olivenhain Reservoir   San Diego   March 2008
  Lake Jennings   San Diego   April 2008
  Lake Romona   San Diego   March 2009
  Lake Poway   San Diego   May 2010
  San Justo reservoir   San Benito   January 2008
  Imperial Dam   Imperial   February 2008
  Kraemar Basin   Orange   Sept 2009
  Anaheim Lake   Orange   September 2008
  Irvine Lake   Orange   April 2008
  Rattesnale Reservoir   Orange   May 2008
  Walnut Canyon Reservoir   Orange   July 2008
  Piru, Lake   Ventura   December 2013
  Dixon Reservoir   San Diego County   August 2007
  Anaheim Lake   orange County   September 2009
  Lake Pyramid   Los Angeles County   December 2016


Cleaning Information

Follow these simple steps:
• Inspect all exposed surfaces - mussels feel like sandpaper.
• Wash the hull thoroughly, removing alQuagga Mussel Inspection Californial visible mud, plants and animal material.
• Drain all water from your kayak and equipment, and dry all areas.
• Wash and dry everything that came in contact with water including shoes, clothing, dogs, paddle, kayak, trailers, etc.
• Dispose of bait in the trash.
• Keep watercraft dry between launches into different fresh water areas.

If a boat moved from an infested area will be launched in waters that are not infested with zebra or quagga mussels, the general recommendation is to keep the boat out of water and let it dry for a minimum of 30 days after cleaning all equipment and draining all possible sources of standing water. However, such "quarantine" times may be reduced depending on local temperatures and relative humidity's.

In general, zebra and quagga mussels can survive longer out of water if local conditions are cold and humid than if conditions are hot and dry. This tool estimates recommended quarantine times based on average humidity and temperature zones in the 48 contiguous United States.

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· Clean and dry your kayak after every use.
· Store absorbent blocks outside the kayak to allow them to fully dry.
· Store kayaks with the drain plug out.
· On the day of your trip, check all compartments, life jackets, and paddles to ensure that they are dry. Dry out any water found.

If a boat has been in infested waters, please use this tool to estimate the minimum time it should remain out of water (after being cleaned thoroughly), before launching in uninfested waters

Many lakes in Central and Northern California have begun deny entry for water vessels coming from all counties south of the Tehachapi Mountains as well as vessels from out of state. those counties include: San Luis Obispo, Kern, San Bernardino, Santa Barbara, Ventura, Los Angeles, Orange, Riverside, San Diego and Imperial to try to prevent the infestation of quagga and zebra mussels.


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