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Harmful Algal Blooms (HABs) Notifications Page

The 2022 HABs reporting and notification season has ended. The New York Harmful Algal Bloom System (NYHABS) link will be unavailable until the 2023 season begins in May.

HAB Locations in New York State

Please visit the HABs Archive page for access to HABs information reported since 2012.

Please email habsinfo@dec.ny.gov to report any blooms outside of the monitoring season. Please include lake name, location, and photograph attachment with your email.