Toxic algae in Warren 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 |
|---|---|---|
| Schroon Lake | 4 | 2024 |
| Friends Lake | 4 | 2021 |
| Lake George | 4 | 2023 |
| Glen Lake | 3 | 2021 |
| Loon Lake | 3 | 2021 |
| Lake Sunnyside | 2 | 2021 |
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.
- Fourth Lake (2025)
- Lake Luzerne (2025)
- Round Pond (2021)
- Wilkie Reservoir (2021)
Source: New York State Department of Environmental Conservation (DEC), official data. For current conditions see the NYHABS map.