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

Tie Lakes Association [exit DNR]

Find A Lake > Marinette County > Thunder Lake

Thunder Lake
Marinette County, 133 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 35 (Oligotrophic) and was determined using Secchi data. For a Two-Story lake, this is considered Excellent.

Thunder Lake has been monitored by volunteers since 1988. 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 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
Thunder Lake - Deep Hole383096Map2019Details
Thunder Lake - EE-110052525Map2019Details
Thunder Lake - EE-210052524Map2019Details
Thunder Lake - EI-110052522Map2019Details
Thunder Lake - EI-210052523Map2019Details
Thunder Lake - WE-110052526Map2019Details
Thunder Lake - WE-210052527Map2019Details
Thunder Lake - WI-110052520Map2019Details
Thunder Lake - WI-210052521Map2019Details