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

Delta Area Lakes Association [exit DNR]

Find A Lake > Bayfield County > Hay Lake

Hay Lake
Bayfield County, 60 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 satellite water clarity observations data. For a Reservoir lake, this is considered Excellent.

Hay Lake was monitored by volunteers between 2003 and 2012. 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. 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
Hay Lake(46-07-07) - Main Basin - Deep Hole043173Map2012Details