The City’s Streets and Stormwater Division will be treating Lake Lancaster with five applications of aluminum sulfate this month in an effort to improve water quality.
Weather permitting, the first round of treatments will be applied on April 21 and 22, with tanker trucks setting up on South Mills Avenue and Lancaster Drive, and the alum being applied by boat across the entire lake. As such, all recreational boating activities will be prohibited during the application. Irrigation from the lake will be allowed during the treatment process.
Alum is a non-toxic material that is commonly used to clarify drinking water and is used to reduce the amount of phosphorous in lakes by forming a heavy particulate called “floc” that settles to the lake bottom to impede the release of phosphorus into the water.
