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Mussel Prevention Survey

Help Keep Clear Lake Mussel-Free: By taking this short 2-min survey, you are helping to prevent a Quagga/Mussel invasion in Clear Lake!

LAKE COUNTY, Calif. (July 30, 2019) – The Lake County Water Resources Department is in need of your help to prevent the introduction and establishment of destructive invasive Quagga/Zebra Mussels in Clear Lake. When introduced into other waterbodies, invasive mussels have negatively impacted fish and waterfowl populations, increased maintenance costs to drinking water and dam infrastructure, increased nuisance aquatic plant growth, and altered lake ecosystem functions in unpredictable and unmanageable ways.

By participating in this 2-minute online survey, you are providing valuable outreach information to Water Resources’ lake managers, so they can enhance and improve current and future lake programs. No personal information will be gathered.  We are just interested in what you think and know about invasive mussels!  

If you or someone you know would like to participate in this survey, please visit the Lake County Invasive Mussel Prevention Program website, at, by visiting the Lake County Water Resources Homepage and clicking on the “Do You Know Your Invasive Mussels?” icon.  You can also scan the QR code below with your smart phone.  The survey will be open for all residents and visiting water users until September 30, 2019.  Please share the survey links with anyone you think may be interested!

The Clear Lake Quagga / Zebra mussel prevention and boat ramp monitor program is funded by a Mussel Prevention Implementation Grant from the California State Parks Division of Boating and Waterways and funds collected from the Lake County Mussel Sticker Program.  If you have questions or need more information please feel free to contact Lake County Water Resources at (707)263-2344, [email protected], or message us on Facebook @lakecountywater.

Take Survey

Mussel QR Code

Mussel Survey Flyer

Water Faucet
Urgent Health Advisory

Effective immediately, people on private water systems whose tap water comes from their own private intake into the lake, in the Oaks Arm and Lower Arm of Clear Lake should not drink the water.

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