Toxic algae in Inyo County, California
11 lakes and waterways have harmful algal bloom reports in California's official data.
Lakes with bloom history
| Lake | Years with reports | Most recent |
|---|---|---|
| Diaz Lake | 8 | 2023 |
| Pleasant Valley Reservoir | 5 | 2026 |
| Horseshoe Lake | 2 | 2022 |
| Lake George | 2 | 2022 |
| Long Lake | 2 | 2022 |
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.
- Cottonwood Lakes (2025)
- Green Lake (2026)
- Lake Diaz (2025)
- Other Lake Or Reservoir (2018)
- Owens River (2022)
- Tinemaha Reservoir (2024)
Source: California State Water Resources Control Board, official data. For current conditions see the California HABs Portal map.