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For information on Lakes in Wisconsin, contact:
Wisconsin DNR Lakes
Division of Water
Bureau of Water Quality
DNR Contacts for Eau Claire Lake

Lake Eau Claire Association, Inc [exit DNR]

Find A Lake > Eau Claire County > Eau Claire Lake

Eau Claire Lake
Eau Claire County, 1360 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 59 (Eutrophic) and was determined using chlorophyll data. For a Reservoir lake, this is considered Good.

Eau Claire Lake has been monitored by volunteers since 2011. 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. 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
Eau Claire Lake - Center10033496Map2011Details
Eau Claire Lake - Deep Hole183075Map2015Details
Eau Claire Lake - Near Eau Claire River10033497Map2011Details
Eau Claire Lake - West End10033495Map2019Details
LEC-AS110043654Map2015Details
LEC-AS210043655Map2015Details
LEC-AS310043656Map2015Details
LEC-AS410043653Map2015Details
Lake Eau Claire10014919Map2011Details
Lake Eau Claire East10043734Map2016Details
Lake Eau Claire West10043733Map2016Details