New York
Toxic algae in Schoharie County lakes
9 lakes and waterways in Schoharie County have harmful algal bloom reports in New York's official data. The most recent entry is for Bear Gulch Pond: Bear Gulch Pond was not on New York's bloom list in 2025. It was last listed in 2023, with confirmed bloom status. Bear Gulch Pond has had blooms in three or more years.
Lakes with bloom history
Newest report first. Each lake has its own page with the full history and what the results mean.
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.
- Central Bridge Upper Reservoir 2016
- Cobleskill Reservoir 2024
- Cripplebush Creek 2025
- Engleville Pond 2014
- Looking Glass Pond 2014
- Mallet Pond 2015
- Summit Lake 2013
- Vlaie Pond 2022
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.