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Colorado Springs Installs Aeration System in Prospect Lake | Local News

Colorado Springs Installs Aeration System in Prospect Lake | Local News

Toxic blue-green algae will no longer exist in the waters of Prospect Lake in Colorado Springs' Memorial Park.


New aeration system for Prospect Lake will preserve motorized boat use

That's the hope and intent of a new aeration system that will circulate the lake's water about every two days. The city began moving equipment and materials this week and will begin excavation next week to install the permanent, continuous aeration system, which is designed to combat blue-green algae blooms and prevent fish kills by reducing excessive nutrient and oxygen levels in the lake increased.

The algae affect water quality, reduce the oxygen supply to animals living in the water and can be toxic to people and pets.

“We are committed to maintaining a vibrant and healthy ecosystem in Prospect Lake. This aeration system not only addresses current lake health concerns, but also supports the continued recovery of Prospect Lake,” Erik, senior environmental health and safety specialist with Parks, Recreation and Cultural Services, Rodriguez said in a news release.

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The city has been battling harmful algae in Prospect Lake for years, temporarily closing it to all recreational activities. The lake — where you can fish, kayak, paddleboard and boat — last reopened in early August after being closed for about two weeks due to dangerous levels of blue-green algae.

The new aeration system will target the deepest parts of the lake and aerate the water through weighted pipes.

According to the project website, the aeration lines will force air bubbles through the lake water. The oxygen in the air bubbles then diffuses into the lake, which, among other things, reduces the level of pollutants in the water and increases the amount of beneficial bacteria in the lake.

When needed, the system distributes an enzyme-based product into the water to help combat blue-green algae blooms.

It wasn't immediately clear how much the ventilation system at Prospect Lake cost. Park officials said the city used about $450,000 in American Rescue Plan Act funds for design and installation.

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