Potentially hazardous conditions at Lake Cascade and Payette River; avoid contact with cyanobacterial harmful algal bloom 

October 14, 2022
BOISE, ID — The Idaho Department of Health and Welfare (DHW) Division of Public Health and the Idaho Department of Environmental Quality (DEQ) are notifying the public of potentially hazardous conditions at Lake Cascade in Valley County and the Payette River from Lake Cascade to Payette through Boise, Gem, Payette, and Valley counties due to harmful algal blooms.