Department of Environmental Conservation

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Harmful Algal Blooms (HABs) Notifications Page

The 2019 HAB reporting has ended. The NYHABS link will be unavailable until the 2020 monitoring season

HAB Locations in New York State

Please visit the HABs Archive page for HABs reported since 2012. A 2019 summary will be posted following routine data maintenance and available on the archive page.

Please email to report any suspicious blooms outside of the monitoring season.