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

Okauchee Lake Management District [exit DNR]

Find A Lake > Waukesha County > Okauchee Lake

Okauchee Lake
Waukesha County, 1210 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 46 (Mesotrophic) and was determined using chlorophyll data. For a Two-Story lake, this is considered Good.

Okauchee Lake has been monitored by volunteers since 1995. 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. Additional monitoring has been done through projects funded in part by DNR Lake 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
OK510053960Map2020Details
OK710053957Map2020Details
OKAU110053048Map2019Details
OKAU210053049Map2019Details
OKAU310053050Map2019Details
Ocauchee L (Icehouse Bay) - Ocauchee L (Icehouse Bay)684008Map1979Details
Okauchee Lake - Deep Hole683142Map2020Details
Okauchee Lake - OL310051533Map2018Details
Okauchee Lake - OL410051534Map2018Details
Okauchee Lake - OL510051535Map2018Details
Okauchee Lake Deep Hole USGS10034896Map2010Details
Okauchee Lake Site #1 - Cranes Nest Bay Near Okauchee WI683303Map2020Details
Okauchee Lake Site #2 - Lower Site At Okauchee WI683305Map2020Details
Okauchee Lake Site #3 - Icehouse Bay At Okauchee WI683306Map2020Details
Okauchee Lake Site #4 - Crazy Man'S Island At Okauchee WI683304Map2020Details