Centennial Beach's Green Water Due To Algae Growth: Park District

NAPERVILLE, IL —An abundance of algae is to blame for the greenish hue of the water many visitors noticed at Centennial Beach. during the park's recent reopening. Park district officials took to social media to explain the natural phenomenon and to reassure guests that the water was still safe for swimming.

"The recent lack of rain and warm temperatures have led to an increase in algae growth in many bodies of water, including Centennial Beach, which caused the water to become greener in color earlier in the week," a post on the Naperville Park District's Facebook page.

The post went on to explain that the body of water at Centennial Beach is not filtered like a "typical swimming pool." Instead, the more than 6 million gallons of water are skimmed by hand after being chlorinated and recirculated.

Staff will continue to monitor the water quality at Centennial Beach, per the post.

Other visitors had raised concerns about the color of the water on the splash pad areas at Centennial Beach, but representatives explained that sand often causes the water in these play zones to appear darker.

According to the post, the water at Centennial Beach's play areas has also been tested and shown normal results.

Click the link to see the 2023 hours for Centennial Beach.