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

Deer Lake District [exit DNR]

Lake Nokomis Concerned Citizens Inc [exit DNR]

Find A Lake > Lincoln County > Deer Lake

Deer 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 41 (Mesotrophic) and was determined using chlorophyll data. For a Two-Story lake, this is considered Excellent.

Deer Lake has been monitored by volunteers since 2003. 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
Deer Lake - Deep Hole Site #5353094Map2024Details