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For information on Lakes in Wisconsin, contact:
Wisconsin DNR Lakes
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DNR Contacts for Manson Lake

Manson Lake Association [exit DNR]

Find A Lake > Oneida County > Manson Lake

Manson Lake
Oneida County, 236 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 41 (Mesotrophic) 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.

Manson Lake has been monitored by volunteers since 2000. 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. 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
Manson Lake - Deep Hole443219Map1979Details
Manson Lake - Deep Hole443194Map2020Details