The Water Security Agency is reminding the public that this is the time of year when blue-green algae starts appearing in lakes and reservoirs.
Blue-green algae blooms occur during calm, hot weather in bodies of water that are shallow, slow-moving or still, and contain sufficient nutrients.
The algae is a naturally occurring bacteria that is bluish-green in colour, but blooms can also appear bright blue, grey or tan.
As the weather warms, the potential for harmful algae blooms increases. These blooms can appear as surface scum with shimmering, foamy or pea soup-like characteristics.
A bloom can last up to three weeks and may be pushed around the body of water by wind.
The public is asked to avoid contact with water where blue-green algae blooms are present. If contact occurs, wash with tap water as soon as possible.
Pets should not be allowed to swim in affected areas, and fish or fish trimmings from those waters should not be fed to pets, as blue-green algae can be fatal to animals. Humans should limit or avoid eating fish organs or shellfish caught in affected lakes.
Direct contact with, or accidental consumption of, contaminated water can cause red skin, sore throat, cramps, nausea, vomiting and diarrhea.
Health-related questions about blue-green algae can be directed to your local Saskatchewan Health Authority environmental health office.
Information about public beaches in Saskatchewan can be found through the Healthy Beaches Program updates.