This measure indicates the cleanliness of a sample of Minnesota's lakes. Clean lakes are important to Minnesotans for recreation, tourism, and ecosystem health.
Currently, 63 percent of lakes are of good water quality, meaning that 37 percent do not meet standards. While lake water quality varies naturally from year to year, the overall quality of lakes in the state has remained relatively steady in recent years. In general, lake monitoring work shows that northeastern Minnesota has a lower lake impairment rate than lakes in central and southwest Minnesota.
Minnesota establishes a baseline of water quality through monitoring and assessment. Using this information, the state develops watershed protection and restoration strategies, which are then implemented to protect, enhance, and restore water resources.
This document (.xlsx) provides the indicator data in a table format.