Eagle Lake was monitored by volunteers between 1990 and 1996. Volunteers monitor water clarity with a black and white Secchi disk. Volunteers are the source of the majority of Wisconsin's lake water quality data, and their dedication is greatly appreciated.
The Wisconsin DNR has rated Eagle Lake water quality for fish and aquatic life as excellent and fish consumption as good.
Additional monitoring has been done through projects funded in part by DNR Lake Grants and Aquatic Invasive Species Grants. Reports and graphs featuring data collected by volunteers, DNR staff and others can be viewed below.