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For information on Lakes in Wisconsin, contact:
Wisconsin DNR Lakes
Division of Water
Bureau of Water Quality
DNR Contacts for Lake Nebagamon

Nebagamon Lake Association [exit DNR]

Find A Lake > Douglas County > Lake Nebagamon

Lake Nebagamon
Douglas County, 986 Acres


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 48 (Mesotrophic) and was determined using chlorophyll data. For a Deep Lowland lake, this is considered Good. Deep Lowland lakes stratify, or form separate layers of water, during the summer months and have watersheds greater than 4 square miles in area.

Lake Nebagamon has been monitored by volunteers since 1986. 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
Lake Nebagamon - Big Bay - Deep Hole163394Map2019Details
Lake Nebagamon - Deep Hole163127Map2014Details
Lake Nebagamon - Northeast Bay At Lake Nebagamon WI163223Map1993Details
Lake Nebagamon - Southeast Bay (Center) At Lake Nebagamon WI163224Map2014Details
Lake Nebagamon - West Bay At Lake Nebagamon WI163225Map1993Details