We’ve seen this blue-green algae in the past, and it’s back again this summer.

It typically grows in shallow, stagnant fresh water, and if it starts to grow rapidly, or “bloom”, it could be mildly dangerous to humans and could kill dogs.

This summer the algae was found in a lake in Lake in the Hills. A pond in a dog park in St. Charles was infested with it two years ago.

It is very real!

Here’s ALLLLLL the information you could possibly want from the Illinois EPA!