Kansas

Toxic algae in Thomas County lakes

1 lake or waterway in Thomas County has harmful algal bloom reports in Kansas's official data. The most recent entry is for Colby City Pond: Kansas has no current advisory for Colby City Pond. The most recent sample, on 29 July 2019 at Colby City Lake, was below advisory levels (microcystin not detected).

Lakes with bloom history

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

Colby City Pond Latest 29 July 2019, blooms in 0 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.