Toxic algae in Orange County, New York
22 lakes and waterways have harmful algal bloom reports in New York's official data.
Lakes with bloom history
| Lake | Years with reports | Most recent |
|---|---|---|
| Orange Lake | 14 | 2025 |
| Beaver Dam Lake | 10 | 2025 |
| Little We Wah Lake | 7 | 2022 |
| Lake Tiorati | 6 | 2025 |
| Winding Hills Park Lake | 6 | 2025 |
| Brown'S Pond | 4 | 2024 |
| Guymard Lake | 4 | 2022 |
| Tuxedo Lake | 4 | 2025 |
| Wee Wah Lake | 4 | 2022 |
| Brooks Lake | 3 | 2018 |
| Greenwood Lake | 3 | 2025 |
| Tomahawk Lake | 2 | 2013 |
| Goshen Reservoir | 2 | 2025 |
| Highland Lake | 2 | 2024 |
| Rio Reservoir | 2 | 2023 |
| Silver Mine Lake | 2 | 2024 |
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.
- Blythea Lake (2023)
- Four Corners Pond (2012)
- Hessian Lake (2017)
- Monroe Pond (2020)
- Muchattoes Lake (2017)
- Wickham Lake (2025)
Source: New York State Department of Environmental Conservation (DEC), official data. For current conditions see the NYHABS map.