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Decker Lake Recreational Monitoring


October 31, 2023: Harmful algal bloom (HAB) monitoring update

Recreational monitoring has ended for the season. Monitoring will resume in summer 2024. A harmful algal bloom may still arise at this waterbody. Know what to look for and check before recreating.

April 18, 2023: Harmful algae monitoring update

GOOD NEWS: Sample analysis indicates that no harmful algal bloom is present. No Health Watch or Advisory is in effect.

April 17, 2023: Harmful algae monitoring update

BE CAREFUL: Possible toxic algae was observed at Decker Lake by a visitor on April 16 and by our monitoring team on April 17. The algae was observed in green and brown clumps floating on the water and near the shore. Samples were collected and results will be shared here as soon as available.

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