Recent water sampling by DEQ indicates the presence of cyanobacteria, also known as a harmful algal bloom (HAB). The advisory is based on the field observations, water sample results, potential public health impacts, and the recommendation of DEQ. The public should take precautions throughout the lake as HABs can spread and move with wind and water traffic.
Panhandle Health District (PHD) in collaboration with the Idaho Department of Health & Welfare (IDHW) and Idaho Department of Environmental Quality (DEQ) have issued a public health advisory for the upper end of Hayden Lake in the vicinity of Sportsman’s Park and the bay north of Sportsman’s Park point on the northern arm of the Lake (see map of advisory area).
