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

Delafield Lake Welfare Commission [exit DNR]

Lake Welfare Committee [exit DNR]

Find A Lake > Waukesha County > Nagawicka Lake

Nagawicka Lake
Waukesha County, 981 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 43 (Mesotrophic) and was determined using chlorophyll data. For a Two-Story lake, this is considered Good.

Nagawicka Lake was monitored by volunteers between 1987 and 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. Nagawicka Lake is also part of DNR's long term trend monitoring project. 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
Nagawicka Lake - A210039865Map1991Details
Nagawicka Lake - B210039866Map1991Details
Nagawicka Lake - C210039867Map1991Details
Nagawicka Lake - Deep Hole683129Map2019Details
Nagawicka Lake - Northern Kettle683430Map1991Details