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DNR Contacts for Forest Lake

Forest Lake Improvement Association [exit DNR]

Find A Lake > Fond du Lac County > Forest Lake

Forest Lake
Fond du Lac County, 51 Acres


Forest Lake was monitored by volunteers between 1986 and 2019. 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
Forest Lake - Deep Hole203076Map2019Details
Forest Lake - NE (Herbicide Monitoring Site 1)10044688Map2016Details
Forest Lake - SW (Herbicide Monitoring Site 2)10044689Map2016Details