Toxic algae in Onondaga County, New York
10 lakes and waterways have harmful algal bloom reports in New York's official data.
Lakes with bloom history
| Lake | Years with reports | Most recent |
|---|---|---|
| Skaneateles Lake | 9 | 2025 |
| Jamesville Reservoir | 9 | 2025 |
| Otisco Lake | 9 | 2025 |
| Cross Lake | 6 | 2025 |
| Hiawatha Lake | 4 | 2025 |
| Oneida River | 4 | 2025 |
| Anthonys Cut Erie Canal | 2 | 2025 |
| Onondaga 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.
- Gillie Lake (2024)
- Marcy Street Pond (2018)
Source: New York State Department of Environmental Conservation (DEC), official data. For current conditions see the NYHABS map.