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Lake Emily

Lake Emily
Photo by Kelly Wagner

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

Friends Of Lake Emily [exit DNR]

Find A Lake > Portage County > Lake Emily

Lake Emily
Portage County, 108 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 39 (Oligotrophic) and was determined using chlorophyll data. For a Deep Seepage lake, this is considered Excellent. Deep Seepage lakes stratify, or form separate layers of water, during the summer months and have no inlet or outlet.

Lake Emily was monitored by volunteers in 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. Lake Emily is also part of DNR's long term trend monitoring project. 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
Emily Lake - NW Center (Herbicide Monitoring Site 3)10043424Map2015Details
Emily Lake - NW Center (Herbicide Monitoring Site 4)10043425Map2015Details
Emily Lake - NW Center near Deep Spot (Herbicide Monitoring Site 1)10043422Map2015Details
Emily Lake - W (Herbicide Monitoring Site 2)10043423Map2015Details
Lake Emily - Deepest Spot503140Map2019Details