Florida
Toxic algae in Charlotte County lakes
8 lakes and waterways in Charlotte County have harmful algal bloom reports in Florida's official data. The most recent entry is for Zephyr Waterway: Florida's most recent sample from Zephyr Waterway, on 27 May 2025 at Zephyr Waterway - South Gulf Cove, found no visible bloom and no microcystin toxin was detected.
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.
- Alligator Creek 2022
- Buck Creek 2021
- Coral Creek East Branch 2019
- Elckam Canal 2023
- Niagara Waterway 2023
- North End Coral Creek West Branch 2019
- Se Tom Adam's Bridge Lemon Bay 2019
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.