The Nine Mile Creek Watershed District monitors the water quality of its lakes on a rotating basis. Lakes monitored in a given year are selected to track water quality conditions, to gather additional information needed for consideration of potential management activities, to prepare for proposed projects, and/or to measure the effectiveness of past or on-going projects. 

In 2024, we monitored the following lakes: Anderson Lakes (Northwest, Southwest, and Southeast), Arrowhead Lake, Bryant Lake, Lake Cornelia (North and South Basins), Lake Holiday, Indianhead Lake, Normandale Lake, Lake Rose, and Wing Lake.

2024 Water Quality Monitoring Report (PDF)

2024 Water Quality Monitoring Report Appendices (PDF)