Florida
Toxic algae in Highlands County lakes
25 lakes and waterways in Highlands County have harmful algal bloom reports in Florida's official data. The most recent entry is for Lake Placid: Florida's most recent sample from Lake Placid, on 29 December 2025 at Lake Placid - Boat Ramp, found a bloom and microcystin toxin measured 0.2 µg/L, below the US EPA swimming advisory level of 8 µg/L. Lake Placid, Lake June-In-Winter and Lake Clay and 3 more have 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.
- Lake Placid Bloom seen
- Lake June-In-Winter Bloom seen
- Lake Clay Bloom seen
- Lake Sebring Bloom seen
- Lake Grassy Bloom seen
- Lake Glenada Bloom seen
- Lake Apthorpe Bloom seen
- Lake Lotela Bloom seen
- Lake Istokpoga Bloom seen
- Blue Lake No bloom seen
- Little Red Water Lake Bloom seen
- Huckleberry Lake No bloom seen
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.
- Huckleberry Lake Canal 2017
- Jackson Creek 2020
- Josephine Creek 2022
- Lake Bonnet 2023
- Lake Clay Canal 2017
- Lake Jackson 2024
- Lake Josephine 2022
- Lake Pearl 2024
- Lake Persimmon 2023
- Lake Viola 2023
- Peachtree Dr Canal 2021
- Persimmon Lake 2022
- Saddlebags Lake 2022
Source: Florida Department of Environmental Protection (DEP), official data, checked 24 October 2026. For today's conditions see the DEP Algal Bloom Dashboard. No report doesn't mean a lake is safe: most water is only tested occasionally.