Toxic algae in El Dorado County, California
27 lakes and waterways have harmful algal bloom reports in California's official data.
Lakes with bloom history
| Lake | Years with reports | Most recent |
|---|---|---|
| Lake Tahoe | 8 | 2026 |
| Tahoe Keys Lagoon | 9 | 2025 |
| Lake Baron | 5 | 2024 |
| Upper Truckee River | 5 | 2026 |
| Trout Creek | 2 | 2026 |
| General Creek | 3 | 2024 |
| Round Lake | 2 | 2020 |
| Star Lake | 3 | 2022 |
| Big Meadow Creek | 2 | 2024 |
| Meeks Creek | 2 | 2026 |
| Silver Fork American River | 2 | 2022 |
| Sly Park Creek | 2 | 2026 |
| Taylor Creek | 2 | 2025 |
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.
- American River South Fork (2020)
- Big Silver Creek (2025)
- Canyon Lake (2019)
- Cascade Creek (2022)
- Cat Creek (2024)
- Dardanelles Lake (2019)
- Grass Lake Creek (2024)
- Heavenly Valley Creek (2025)
- Ice House Reservoir (2023)
- South Lake Tahoe (2026)
- Taboose Creek (2022)
- Tallac Creek (2023)
- Taylor Creek Meadow Marsh (2023)
- Wrights Lake (2018)
Source: California State Water Resources Control Board, official data. For current conditions see the California HABs Portal map.