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Harmful Algal Blooms (HABs) Archive Page

Waterbodies with Suspicious or Confirmed HABs that were reported earlier in 2018 are listed in the table below. Listings are added to the Archive table when a HAB is reported to be no longer visible or no new information was available to update the listing for three consecutive weeks. Waterbodies with current bloom notifications are listed on the HABs Notifications page. Multiple listings for a single waterbody may indicate that bloom conditions change frequently. Blooms may return on any of the waterbodies listed below.

Lake Champlain blooms are not reported here; this information can be found on the Vermont Department of Health's blue-green algae notification page.

Waterbodies with Archived HABs Notices
Waterbody Name County Last Update Detail
Barger Pond Putnam 7/11/18 Bloom reported to have ended
Beaver Dam Lake Orange 7/6/18 Bloom reported to have ended
Big Bowman Pond Rensselaer 7/18/18 Bloom reported to have ended
Cazenovia Lake Madison 7/5/18 Bloom reported to have ended
Chautauqua Lake Chautauqua 5/29/18 Bloom reported to have ended
Conesus Lake Livingston 6/27/18 Bloom reported to have ended
Cortlandt Lake Putnam, Westchester 7/5/18 Bloom reported to have ended
Deer Lake Dutchess 7/3/18 Bloom reported to have ended
Eagle Pond Franklin 7/1/18 Bloom reported to have ended
Harlem Meer New York 6/18/18 Bloom reported to have ended
Honeoye Lake Ontario 6/11/18 Bloom reported to have ended
Kinderhook Lake Columbia 7/6/2018 Bloom reported to have ended
Lake Casse Putnam 6/14/18 Bloom reported to have ended
Lake Casse Putnam 7/10/18 Bloom reported to have ended
Lake Lacoma Monroe 7/2/18 Bloom reported to have ended
Lake Lincolndale Westchester 7/8/18 Bloom reported to have ended
Lake Mahopac Putnam 6/14/18 Bloom reported to have ended
Lake Neatahwanta Oswego 5/22/18 Bloom reported to have ended
Lake Ronkonkoma Suffolk 6/15/18 Bloom reported to have ended
Lake Ronkonkoma Suffolk 7/2/18 Bloom reported to have ended
Maratooka Lake Suffolk 6/25/18 Bloom reported to have ended
Millsite Lake Jefferson 7/5/18 Bloom reported to have ended
New Rochelle Reservoir #3 Westchester 6/7/18 No additional information
Oneida Lake Multiple 7/3/18 Bloom reported to have ended
Orange Lake Orange 6/6/18 No additional information
Plymouth Reservoir Chenango 6/14/18 Bloom reported to have ended
Putnam Lake Putnam 6/4/18 Bloom reported to have ended
Putnam Lake Putnam 6/14/18 Bloom reported to have ended
Quaker Lake Dutchess 6/8/18 Bloom reported to have ended
Roaring Brook Lake Putnam 5/31/18 Bloom reported to have ended
Sixberry Lake Jefferson 7/5/18 Bloom reported to have ended
Song Lake Cortland 7/12/18 Bloom reported to have ended
Sylvan Lake Dutchess 6/22/18 Bloom reported to have ended
Washington Park Pond Albany 7/11/18 Bloom reported to have ended
Whitney Point Reservoir Broome 7/6/18 Bloom reported to have ended

Archived Notices

The following reports summarize notifications that were listed on the HABs Notifications page in past seasons:

Lake Champlain blooms are not reported here- this information can be found on the Vermont Department of Health's blue-green algae notification page (link leaves DEC website.)

Anyone using a waterbody is advised to avoid direct contact with any discolored water and to report suspected HABs conditions to DEC by submitting a Suspicious Algal Bloom Report Form (PDF, 764 KB) or by contacting your regional DEC office or by calling 518-402-8179.