RESOLVED: Blue Green Algae Bloom at Thetis Lake

Aug 16, 2020 (updated Jan 11, 2021, 2:18pm)

As of Jan 11, this advisory has been lifted at Thetis Lake. However, blue-green algae blooms are unpredictable and may occur at any time.

The blue-green algae advisory is now lifted for Thetis Lake, located in Thetis Lake Regional Park. Collected water samples indicated a “below detection limit” result for cyanotoxins. The extended absence of blue-green scum combined with test results are good indicators that the bloom is over.