California
Toxic algae in Tulare County lakes
19 lakes and waterways in Tulare County have harmful algal bloom reports in California's official data. The most recent entry is for North Fork Kaweah River: There are no bloom reports for North Fork Kaweah River in the last 30 days of California's data. The most recent was an algal mat alert sign on 31 July 2024 at ~1.5mi above Sheep Creek near town of Advance.
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.
- Alder Creek 2022
- Dorst Creek 2025
- East Fork Kaweah River 2022
- Kern River 2021
- Mankins Creek 2022
- Marble Fork Kaweah River 2022
- Poison Meadow Creek 2023
- Salmon Creek 2021
- Skyline Ponds 2022
- South Creek 2021
- South Fork Kaweah River 2022
- Squaw Creek 2025
- Tyler Creek 2026
- White River 2026
Source: California State Water Resources Control Board, official data, checked 24 October 2026. For today's conditions see the California HABs Portal map. No report doesn't mean a lake is safe: most water is only tested occasionally.