cyanobacteria and perfluorooctanesulfonatecan (PFOS) can result in harmful algal blooms that can have negative health affects. When this bacteria is present, prolonged contact with the water is not advised, although occasional contact with PFOS is not considered a health concern. Regardless of water quality, swimming is not a common recreational activity on the lake. When algae levels reach a high enough level to pose a threat, a "Do Not Eat" fish advisory is issued and posted at all access points along the lake. Boating and fishing are still allowed, but fishermen are advised to catch and release only. References Bodies of water of Washtenaw County, Michigan Bodies of water of Wayne County, Michigan Reservoirs in Michigan 1925 establishments in Michigan Huron River (Michigan)