Toxic algae confirmed at Summit Lake

‘Extremely high levels’ of toxic algae confirmed at Summit Lake

Tests confirmed that a blue-green algae bloom on the northwest Thurston County lake is producing “extremely high levels” of the toxin Anatoxin-a, a neurotoxin, according to Thurston County Environmental Health.

At this time, residents and lake users should not:

▪ Drink water taken from the lake until laboratory tests show the water is safe. Disinfection, boiling and treatment systems do not remove or deactivate algae toxin.

▪ Shower in water taken from the lake.

▪ Fish, swim or otherwise be in contact with the water.

▪ Allow pets and children near the water.

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