New York
Toxic algae in Herkimer County lakes
4 lakes and waterways in Herkimer County have harmful algal bloom reports in New York's official data.
Other waterbodies with a report
These have one or two reports in a single year, which isn't enough history for a page of their own yet.
- Bubb Lake 2023
- Cedar Lake 2015
- Ilion Reservoir No 2021
- Youngs Lake 2023
Source: New York State Department of Environmental Conservation (DEC), official data, checked 24 October 2026. For today's conditions see the NYHABS map. No report doesn't mean a lake is safe: most water is only tested occasionally.