Toxic algae in Yolo County, California
8 lakes and waterways have harmful algal bloom reports in California's official data.
Lakes with bloom history
| Lake | Years with reports | Most recent |
|---|---|---|
| Cache Creek | 7 | 2025 |
| Uc Davis Arboretum Canal | 2 | 2020 |
| Stonegate Lake | 1 | 2022 |
| Touchstone Lake | 1 | 2020 |
| Lake Washington | 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.
- Fiske Creek (2026)
- Lake Touchstone (2020)
- Prospect Slough (2022)
Source: California State Water Resources Control Board, official data. For current conditions see the California HABs Portal map.