Water Quality

Lake Sullivan is priority number one

Because Lake Sullivan is critical to our way of life at the lake, it is imperative that we maintain or improve its water quality. The Minnesota Pollution Control Agency (MPCA) monitors and assesses lakes throughout the state to make sure they meet water quality standards.

According to the MPCA, Lake Sullivan is suitable for swimming and wading, with good clarity and low algae levels throughout the open water season. The MPCA measures three important categories for Lake Sullivan when determining water quality:

Overall Condition: CAUTION
Clarity: GOOD
Recreation Use: GOOD

View Lake Sullivan’s report from the MPCA.

Watershed approach to restoring and protecting water quality

The passage of Minnesota’s Clean Water Legacy Act in 2006 provided policy framework and money for state and local governments to accelerate efforts to monitor, assess, and restore impaired waters, and to protect unimpaired waters.

The primary feature of the watershed approach is that it focuses on the watershed’s condition as the starting point for water quality assessment, planning, implementation, and measurement of results. Click here to visit the Minnesota Pollution Control Agency to learn more about watershed approach.