Algal blooms have started growing in Utah’s bodies of water, here’s how to stay safe
Jun 10, 2025, 5:00 PM
A sign warns visitors about algal blooms in Utah Lake at the Lindon Marina in Vineyard on Monday, July 19, 2021. (Kristin Murphy/Deseret News)
(Kristin Murphy/Deseret News)
SALT LAKE CITY — Harmful algal blooms are starting to pop up in some of Utah’s reservoirs and streams.
Experts said the toxic algae tends to be a blue-green color and looks like someone spilled paint on top of the water.
Harmful algal blooms can make both humans and animals very sick if exposed to them.
Utah Division of Water Quality environmental scientist Ellen Bailey said the water is heating up, so it’s normal to start seeing algae grow in some of our water bodies.
“We haven’t had a lot of weather cycles to disturb the systems (this year), and so I think that can add to some of these blooms occurring,” she said.
They’ve already been spotted around Zion National Park and in one area of Utah Lake.
“We’re just definitely getting into a heavier growing season,” Bailey said.
According to Bailey, other areas of the state might not see the algal blooms form until as late as this fall. But between now and then, if you do see algae, it’s best to steer clear of them.
“It’s really hard to know whether it’s going to be toxic or not. So just, best to stay out if you see anything.”
