Wall Lake West Of Sioux Falls Flagged For Harmful Algal Bloom

Even though the calendar says summer's days are numbered here in Sioux Falls, the heat and humidity that accompany summer are still very much with us right now in the Sioux Empire.

So much so that jumping into a nice, cool lake can sound pretty tempting right now, especially with several public pools already shutting down for the season.

But before you grab the swimsuit, sunscreen, and inflatable flamingo, there’s one Sioux Falls-area lake where you’ll want to tap the brakes on that swimming idea.

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According to Dakota News Now, the South Dakota Department of Agriculture & Natural Resources has issued a high-risk advisory for Wall Lake, located about 25 minutes directly west of Sioux Falls.

The advisory was issued August 11 following the discovery of a harmful algal bloom at the lake, and officials are encouraging visitors to stay out of the water.

What Is A Harmful Algal Bloom?

A harmful algal bloom happens when toxin-producing algae grow excessively in a body of water. One of the biggest concerns is blue-green algae, which can produce toxins that are potentially harmful to people, pets, and livestock.

In other words, this probably isn't the time to work on your breaststroke at Wall Lake.

And if you were thinking about bringing the dog along for a little lakeside adventure, you’ll want to keep your fur baby away from the water, too.

Officials are asking anyone who encounters a harmful algal bloom to stay out of the water and report it to the South Dakota Department of Agriculture & Natural Resources as soon as possible. The department can be reached by calling 605-773-3623.

What If You Come In Contact With It?

If you accidentally come into contact with the algal bloom, officials recommend taking it very seriously.

You should shower immediately, seek medical attention, and contact your poison control center for advice.

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The good news is, there are still plenty of ways to enjoy the final stretch of summer in the Sioux Empire, but swimming right now in Wall Lake isn't one of them until officials determine that the water is safe again.