November 5, 2025
CALGARY – Recent weather has cooled lake and reservoir water temperatures to such an extent that cyanobacteria (blue-green algae) presents a low health risk, including in one water body in Calgary Zone, which had previously been placed under a cyanobacteria advisory.
Effective immediately, Alberta Health Services has lifted the cyanobacteria advisory for Eagle Lake.
As always, visitors and residents are reminded to never drink or cook with untreated water directly from any recreational body of water at any time. Note that boiling water will not remove the toxins produced by cyanobacteria. An alternate source of drinking water should also be provided for pets and livestock any time cyanobacteria may be of concern.
Alberta Health Services is the provincial health authority responsible for planning and delivering health supports and services for more than five million adults and children living in Alberta. Our mission is to provide a patient-focused, quality health system that is accessible and sustainable for all Albertans. Our current focus is on reducing emergency department wait times, improving EMS response times, increasing access to surgeries, and improving patient flow.
