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DNR Contacts for Eagle Lake

Delta Area Lakes Association [exit DNR]

Iron River Lakes Association [exit DNR]

Find A Lake > Bayfield County > Eagle Lake

Eagle Lake


Water Quality

One measure of a lakes health is the trophic state, which relates to the amount of algae in the water. The average summer trophic state for the last 5 years was 39 (Oligotrophic) and was determined using chlorophyll data. For a Deep Lowland lake, this is considered Excellent. Deep Lowland lakes stratify, or form separate layers of water, during the summer months and have watersheds greater than 4 square miles in area.

Eagle Lake has been monitored by volunteers since 1991. Volunteers monitor water clarity with a black and white Secchi disk. Some also collect water samples, which are sent to the State Lab of Hygiene to be analyzed. Volunteers are the source of the majority of Wisconsin's lake water quality data, and their dedication is greatly appreciated. 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.

Water Quality Reports and Graphs

Station NameStation IDMapMax YearReports
Eagle Lake - Deep Hole043077Map2024Details
Eagle Lake - E1 (Application Area E-22)10056175Map2022Details
Eagle Lake - E210052499Map2022Details
Eagle Lake - E3 ("Deep Hole")10056911Map2022Details
Eagle Lake - E3 [2019]10052500Map2019Details