Blue-green algae naturally occurs in southern Saskatchewan waters due to the nutrient-rich soil, but hot temperatures, dry conditions and slow-moving water can create a breeding ground for these algae blooms. 

This algae usually presents itself as a blue-green or bright blue and can give the water a shimmering, foamy pea soup appearance. 

If you notice blue-green algae, it is best to avoid the water, as coming into contact with it can have some harmful effects.

Water Security Agency Communications Manager, Sean Osmar, says there are steps to take if you come into contact with the algae.

"You might have a rash or irritation, your eye could get red. If you ingest it you could get sick, nausea, vomiting, stuff like that. So if you do come into contact with it, best to call 811 and speak to a medical professional."

Osmar also cautions residents about eating fish in waters with blue-green algae present, as it can accumulate in the fish's organs and meat.

These algae can be particularly harmful to livestock or pets, as it is quite toxic to animals and boiling the water will not kill the harmful bacteria as it needs to be chemically treated.

"If you are a producer or you have livestock and you see it in some of your dugouts, we recommend you switch your water source until conditions change," says Osmar.

Osmar says the Water Security Agency has data that goes back centuries of blue-green algae present in southern Saskatchewan, so it's safe to say we will see the blooms for many summers to come.

"Part of what makes Saskatchewan farmland so productive agriculturally is how nutrient-rich it is this also tends to lead to the growth of blue-green algae," says Osmar. 

Osmar says if you are out on the water, just be on the lookout for this type of algae. 

"You'll know it if you see it and if you do just avoid contact and try to enjoy the rest of your summer."