Report a Harmful Algal Bloom (HAB)
Have you observed a suspected Harmful Algal Bloom on Cayuga Lake? Please report it using this form!
Reported HABs on Cayuga Lake can be found on the Community Science Institute’s website.
Our partners at CSI send all confirmed bloom reports to the NYS DEC. Reported freshwater HABs across New York State can be found on the DEC’s NYHABs interactive map. HABs that were reported within the last two weeks will appear as yellow dots, while all older reports will appear as gray dots.