Toxic algae in Cattaraugus County, New York
8 lakes and waterways have harmful algal bloom reports in New York's official data.
Lakes with bloom history
| Lake | Years with reports | Most recent |
|---|---|---|
| Red House Lake | 11 | 2025 |
| Allegheny Reservoir | 10 | 2025 |
| Quaker Lake | 9 | 2025 |
| Lime Lake | 5 | 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.
- Beaver Lake (2012)
- Beaver Lake Inlet (2012)
- Crystal Lake (2024)
- Harwood Lake (2025)
Source: New York State Department of Environmental Conservation (DEC), official data. For current conditions see the NYHABS map.