Kansas

Toxic algae in Ellsworth County lakes

2 lakes and waterways in Ellsworth County have harmful algal bloom reports in Kansas's official data. The most recent entry is for Kanopolis Lake: Kansas has no current advisory for Kanopolis Lake. The most recent sample, on 20 July 2026 at Kanopolis Lakes, was below advisory levels (microcystin not detected, 7,924 cyanobacteria cells/mL).

Lakes with bloom history

Newest report first. Each lake has its own page with the full history and what the results mean.

Kanopolis Lake Latest 20 July 2026, blooms in 0 years No current advisory

Other waterbodies with a report

These have one or two reports in a single year, which isn't enough history for a page of their own yet.

Kanopolis Kids Fishing Pond 2026

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.