City of Prior Lake, MN
City of Prior Lake, MN

Alum Treatment on Spring Lake Next Week

The Spring Lake alum treatment is scheduled to begin!  Set-up will begin at the Spring Lake public boat access (2025 Lakeview Drive, Jordan) on Sunday, May 20 and treatment will begin on May 21.  The treatment may be complete as early as Friday, the 25th, but could possibly go into the weekend.  Depending on weather conditions, the alum barges might treat late into the evening, or even overnight, in order to get done as soon as possible.

You are welcome to boat during the treatment, but please keep boats away from the barge and at slow speeds to avoid disturbance of the treatment.

If you are interested in seeing the operation in person, please join us at the Spring Lake boat launch on Monday (May 21) at 2pm.  We will be giving a brief demonstration and can answer questions at the demonstration.

Visit to view updates and learn more about the alum treatment.  You can also sign-up at the bottom of the page to receive daily email updates during the treatment.

Return to the City of Prior Lake's home page.