Kansas
Toxic algae in Lyon County lakes
4 lakes and waterways in Lyon County have harmful algal bloom reports in Kansas's official data. The most recent entry is for King Lake: Kansas has no current advisory for King Lake. The most recent sample, on 14 October 2026, was below advisory levels (microcystin 0.47 µg/L, 73,661 cyanobacteria cells/mL). King 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.
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.
- Olpe Jones Park Lake 2012
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.