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

Three Lakes Waterfront Association Inc. [exit DNR]

Find A Lake > Oneida County > Big Fork Lake

Big Fork Lake
Oneida County, 663 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 55 (Eutrophic) and was determined using Secchi data. For a Two-Story lake, this is considered Poor.

Big Fork Lake has been monitored by volunteers since 1986. 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. 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
Big Fork Lake - Deep Hole443007Map2021Details