Toxic algae in Fresno County, California
9 lakes and waterways have harmful algal bloom reports in California's official data.
Lakes with bloom history
| Lake | Years with reports | Most recent |
|---|---|---|
| Hume Lake | 1 | 2026 |
| Millerton Lake | 2 | 2023 |
Other waterbodies with a report
These have one or two reports in a single year, so there isn't enough history for a page of their own yet.
- Boulder Creek (2025)
- Davis Creek (2022)
- Kearsarge Lake (2024)
- Kirch Flat To Pine Flat Dam (2018)
- Pitman Creek (2025)
- San Joaquin River (2025)
- South Fork Kings River (2022)
Source: California State Water Resources Control Board, official data. For current conditions see the California HABs Portal map.