Toxic algae in Madera County, California
17 lakes and waterways have harmful algal bloom reports in California's official data.
Lakes with bloom history
| Lake | Years with reports | Most recent |
|---|---|---|
| H.V. Eastman Lake | 7 | 2026 |
| Hensley Lake | 6 | 2023 |
| Chowchilla River | 3 | 2023 |
| Indian Lakes | 2 | 2020 |
| Manzanita Lake | 2 | 2024 |
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.
- Ash Slough (2022)
- Ash Slough Bypass Canal (2022)
- Beasore Creek (2021)
- Corrine Lake (2026)
- Fresno River (2022)
- Middle Fork San Joaquin River (2022)
- Nedler Creek (2021)
- Other River (2021)
- Private Pond (2026)
- Redinger Lake (2022)
- San Joaquin River (2021)
- Willow Creek (2021)
Source: California State Water Resources Control Board, official data. For current conditions see the California HABs Portal map.