Kansas

Toxic algae in Dickinson County lakes

2 lakes and waterways in Dickinson County have harmful algal bloom reports in Kansas's official data. The most recent entry is for Herington City Lake: Kansas has no current advisory for Herington City Lake. The most recent sample, on 22 June 2026 at Herington Old City Lake Beach, was below advisory levels (microcystin not detected, 4,255 cyanobacteria cells/mL). Herington City 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.

Herington City Lake Latest 22 June 2026, blooms in 5 years No current advisory
Herington Reservoir Latest 6 June 2022, blooms in 2 years No current advisory

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.