Blue-green algae and recreation
Cyanobacteria (commonly known as blue-green algae) are naturally occurring bacteria that live in lakes and waterways.
Most of the time algae exist in low numbers. Although under certain conditions algae can grow rapidly, called an algal bloom, and sometimes produce toxins that can harm your health if you swim, boat or fish in algae-affected lakes.
Potential health hazards are related to the way people are exposed to blue-green algae toxins, including:
- swallowing water when swimming, water-skiing or tubing
- breathing in water droplets and spray during jet-skiing or power boating
- water coming into contact with the skin, including sensitive areas such as the ears, eyes, mouth, and nose
- eating fish and other food caught in algae-affected lakes.
Play it safe when visiting any of our lakes. Be aware of blue-green aglae levels at our lakes, and the health risks associated with swimming, boating or fishing when algae levels are high. While your safety is important to us, it is your responsibility.
Plan ahead and stay informed of changing lake conditions:
Seqwater monitors all lakes for the presence of blue-green algae, as well as other water quality issues, and may restrict lake access for water-based recreation (i.e. in and on-water activities such as swimming, skiing, paddling and fishing) when toxin concentration levels indicate a health risk. For more information about blue-green algae and how we manage recreational access: