Horseshoe Lake

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 56 (Eutrophic) and was determined using chlorophyll data. For a Deep Seepage lake, this is considered Fair. Deep Seepage lakes stratify, or form separate layers of water, during the summer months and have no inlet or outlet.

Horseshoe 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 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 Name	Station ID	Map	Max Year	Reports
Horseshoe Lake - Buckwald Bay	10033960	Map	2017	Details
Horseshoe Lake - Channel	10057583	Map	2023	Details
Horseshoe Lake - Deep Hole	493139	Map	2025	Details
Horseshoe Lake - Greatwood Ln	10044838	Map	2016	Details
Horseshoe Lake - Mid Lake	10033959	Map	2020	Details
Horseshoe Lake - Mud Lake Entry	10057584	Map	2023	Details
Horseshoe Lake - N Shore	10044837	Map	2016	Details
Horseshoe Lake - SW Shore	10044839	Map	2016	Details
Horseshoe Lake - West Bay	10033958	Map	2023	Details