Kansas
Toxic algae in Reno County lakes
3 lakes and waterways in Reno County have harmful algal bloom reports in Kansas's official data. The most recent entry is for Cheney Lake: Kansas has no current advisory for Cheney Lake. The most recent sample, on 21 July 2025 at Cheney Preisser Cove Area, was below advisory levels (microcystin not detected, 6,751 cyanobacteria cells/mL). Cheney Lake has had blooms in three or more years.
Lakes with bloom history
Newest report first. Each lake has its own page with the full history and what the results mean.
Source: Kansas Department of Health and Environment (KDHE), official data, checked 24 October 2026. For today's conditions see the KDHE algae bloom map. No report doesn't mean a lake is safe: most water is only tested occasionally.