Find A Lake > Florence County > Keyes Lake
Florence County, 195 Acres
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 31 (Oligotrophic) and was determined using chlorophyll data. For a Two-Story lake, this is considered Excellent.
Keyes Lake has been monitored by volunteers since 1998. 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. Keyes Lake is also part of DNR's long term trend monitoring project. Additional monitoring has been done through projects funded in part by DNR 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 Name||Station ID||Map||Max Year||Reports|
|Keyes Lake - North Basin-Deep Hole||193051||Map||2015||Details|
|Keyes Lake - South Basin-Deep Hole||193006||Map||2019||Details|