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Cyanotoxin Levels Below Caution Threshold

All Cyanotoxin Levels in Clear Lake Below Caution Threshold

Results from water monitoring of 21 sites on Clear Lake by the Big Valley Band of Pomo Indians and Elem Indian Colony on September 20, 2018 showed all levels of microcystin below the Caution threshold. Overall lake conditions continue to improve as we move into cooler weather conditions. All restrictions are being removed at this point, although we still recommend awareness of lake appearance and conditions. Monitoring will continue.  

HAB Map

HAB Legend

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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