New York
Toxic algae in Essex County lakes
10 lakes and waterways in Essex County have harmful algal bloom reports in New York's official data. The most recent entry is for Franklin Falls Pond: Franklin Falls Pond was on New York's harmful algal bloom list from 16 August 2025 to 27 September 2025, with confirmed bloom status (2 reports). Lake Champlain 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.
- Arbutus Pond 2023
- Augur Lake 2023
- Lake Placid 2015
- Lincoln Pond 2024
- Moose Pond 2022
- Paradox Lake 2021
- Wolf Pond 2025
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.