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Algal bloom at Lake Thetis prompts warning for people and pets

Algal bloom at Lake Thetis prompts warning for people and pets
Algal bloom at Lake Thetis prompts warning for people and pets

The public is advised to take precautions as a bloom of blue-green algae is occurring in Lake Thetis.

The Capital Regional District (CRD) and Island Health on Monday (July 8) extended the existing algae advisory for Elk Lake to include Thetis Lake.

Visitors to regional parks are encouraged to avoid contact with the algae, which typically produces a visible blue-green sheen, and to keep animals leashed so they do not drink or swim in the lake. The CRD advises the public to follow these precautions until the advisory is implemented.

Algae may appear as surface scum on the lake, but the CRD notes that not all algae blooms are easily seen and the toxins may still be present even if they are not visible.

“These algae are known toxin producers. Drinking water containing these cyanotoxins can cause a range of symptoms, including headaches and abdominal pain in humans, and can lead to fatal liver damage in dogs,” the CRD said.

You can follow the status of the algae bloom here.