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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
Artist Lake Suffolk 8/29/18 Updated Listing
Avon Marsh Dam Pond Livingston 9/6/18 Bloom reported to have ended
Barger Pond Putnam 7/11/18 Bloom reported to have ended
Barnum Pond Franklin 8/2/18 No additional information
Barrett Pond Putnam 7/28/18 Bloom reported to have ended
Bear Lake Chautauqua 7/23/18 Bloom reported to have ended
Beaver Dam Lake Orange 7/6/18 Bloom reported to have ended
Beaver Lake Broome 8/6/18 Bloom reported to have ended
Bedford Lake Westchester 8/5/18 Bloom reported to have ended
Beverly's Pond Chemung 9/5/18 Bloom reported to have ended
Big Bowman Pond Rensselaer 7/18/18 Bloom reported to have ended
Big Fresh Pond Suffolk 8/28/18 Bloom reported to have ended
Bowne Pond Queens 8/6/18 Bloom reported to have ended
Brooks Lake Orange 9/14/18 Bloom reported to have ended
Cayuga Lake Multiple 7/26/18 Bloom reported to have ended
Cazenovia Lake Madison 7/5/18 Bloom reported to have ended
Cazenovia Lake Madison 7/29/18 Bloom reported to have ended
Cazenovia Lake Madison 8/19/18 Bloom reported to have ended
Cazenovia Lake Madison 9/2/18 Bloom reported to have ended
Chautauqua Lake Chautauqua 5/29/18 Bloom reported to have ended
Chodikee Lake Ulster 7/16/18 No additional information
Clove Lake Richmond 8/28/18 Bloom reported to have ended
Conesus Lake Livingston 6/27/18 Bloom reported to have ended
Conesus Lake Livingston 8/19/18 Bloom reported to have ended
Cortlandt Lake Putnam, Westchester 7/5/18 Bloom reported to have ended
Craine Lake Madison 7/8/18 Bloom reported to have ended
Craine Lake Madison 8/5/18 No additional information
Croton Falls Reservoir Putnam 7/19/18 No additional information
Dean Pond Cortland 8/21/18 No additional information
Deer Lake Dutchess 7/3/18 Bloom reported to have ended
Deer Lake Dutchess 8/15/18 No additional information
Diverting Reservoir Putnam 8/6/18 No additional information
Eagle Pond Franklin 7/1/18 Bloom reported to have ended
Evens Lake Sullivan 6/27/18 No additional information
Evens Lake Sullivan 7/28/18 No additional information
Fresh Pond Suffolk 7/29/18 Bloom reported to have ended
Fresh Pond Suffolk 9/9/18 Bloom reported to have ended
Georgica Pond Suffolk 7/24/18 Bloom reported to have ended
Georgica Pond Suffolk 9/12/18 Bloom reported to have ended
Golden Pond Queens 7/24/18 No additional information
Harlem Meer New York 6/18/18 Bloom reported to have ended
Harlem Meer New York 8/13/18 Bloom reported to have ended
Hemlock Lake Livingston, Ontario 7/26/18 Bloom reported to have ended
Hiawatha Lake Onondaga 7/24/18 No additional information
Honeoye Lake Ontario 6/11/18 Bloom reported to have ended
Hyde Lake Jefferson 8/23/18 Bloom reported to have ended
Hyde Park Lake Niagara 7/31/18 Bloom reported to have ended
Indian Lake Putnam 7/15/18 Bloom reported to have ended
Indian Pond Bronx 7/3/18 No additional information
Jamesville Reservoir Onondaga 6/23/18 Bloom reported to have ended
Keuka Lake Steuben, Yates 8/8/18 Bloom reported to have ended
Kinderhook Lake Columbia 7/6/18 Bloom reported to have ended
Kinderhook Lake Columbia 7/31/18 Bloom reported to have ended
Kirk Lake Putnam 7/28/18 Bloom reported to have ended
Kirk Lake Putnam 8/31/18 Bloom reported to have ended
Lake Carmel Putnam 7/25/18 Bloom reported to have ended
Lake Carmel Putnam 9/8/18 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 Lincolndale Westchester 8/15/18 Bloom reported to have ended
Lake Mahopac Putnam 6/14/18 Bloom reported to have ended
Lake Mahopac Putnam 7/3/18 Bloom reported to have ended
Lake Neatahwanta Oswego 5/22/18 Bloom reported to have ended
Lake Ontario (Westcott SP) Jefferson 8/16/18 Bloom reported to have ended
Lake Peekskill Putnam 7/18/18 Bloom reported to have ended
Lake Peekskill Putnam 8/24/18 No additional information
Lake Ronkonkoma Suffolk 6/15/18 Bloom reported to have ended
Lake Ronkonkoma Suffolk 7/2/18 Bloom reported to have ended
Lake Ronkonkoma Suffolk 8/14/18 Bloom reported to have ended
Lake Ronkonkoma Suffolk 8/27/18 No additional information
Lake Tonetta Putnam 7/31/18 Bloom reported to have ended
Lake Waccabuc Westchester 8/5/18 Bloom reported to have ended
Laurel Lake Suffolk 6/27/18 Bloom reported to have ended
Lawson Lake Albany 7/25/18 Bloom reported to have ended
Lawson Lake Albany 9/5/18 Bloom reported to have ended
Little Fresh Pond Suffolk 9/4/18 Bloom reported to have ended
Little Fresh Pond Suffolk 9/18/18 Bloom reported to have ended
Long Pond Dutchess 8/21/18 Bloom reported to have ended
Maratooka Lake Suffolk 6/25/18 Bloom reported to have ended
Maratooka Lake Suffolk 8/13/18 Bloom reported to have ended
Maratooka Lake Suffolk 9/17/18 Bloom reported to have ended
Marcy Avenue Pond Rensselaer 8/27/18 No additional information
Meizinger Lake Columbia 7/16/18 No additional information
Millsite Lake Jefferson 7/5/18 Bloom reported to have ended
Moon Lake Jefferson 8/27/18 No additional information
Moreau Lake Saratoga 8/2/18 Bloom reported to have ended
Moreau Lake Saratoga 8/11/18 Bloom reported to have ended
Morningside Lake Sullivan 7/8/18 No additional information
Morningside Pond New York 8/7/18 No additional information
New Croton Reservoir Westchester 7/6/18 Bloom reported to have ended
New Croton Reservoir Westchester 8/21/18 Bloom reported to have ended
New Rochelle Reservoir #3 Westchester 6/7/18 No additional information
North Sandy Pond Jefferson, Oswego 8/19/18 No additional information
Oneida Lake Multiple 7/3/18 Bloom reported to have ended
Oneida Lake Multiple 8/24/18 Bloom reported to have ended
Orange Lake Orange 6/6/18 No additional information
Orange Lake Orange 8/21/18 No additional information
Otisco Lake Onondaga 9/13/18 Bloom reported to have ended
Otter Lake Oneida 8/7/18 Bloom reported to have ended
Otter Lake Oneida 9/3/18 Bloom reported to have ended
Owasco Lake Cayuga 8/20/18 Bloom reported to have ended
Paine Lake Westchester 8/22/18 Bloom reported to have ended
Pine Valley Campground Lake Broome 8/24/18 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
Putnam Lake Putnam 6/29/18 No additional information
Putnam Lake Putnam 8/12/18 Bloom reported to have ended
Putnam Lake Putnam 8/27/18 No additional information
Quaker Lake Dutchess 6/8/18 Bloom reported to have ended
Quaker Lake Cattaraugus 8/16/18 Bloom reported to have ended
Roaring Brook Lake Putnam 5/31/18 Bloom reported to have ended
Roaring Brook Lake Putnam 7/18/18 Bloom reported to have ended
Roaring Brook Lake Putnam 8/29/18 Bloom reported to have ended
Rockland Lake Rockland 8/17/18 Bloom reported to have ended
Roth Pond Suffolk 8/14/18 Bloom reported to have ended
Round Lake Orange 8/12/18 No additional information
Sagg Pond Suffolk 9/10/18 Bloom reported to have ended
Seneca Lake Multiple 8/20/18 Bloom reported to have ended
Sheldrake Lake Westchester 8/22/18 Bloom reported to have ended
Silver Lake Wyoming 9/9/18 Bloom reported to have ended
Sixberry Lake Jefferson 7/5/18 Bloom reported to have ended
Sixberry Lake Jefferson 9/1/18 Bloom reported to have ended
Skaneateles Lake Cayuga, Cortland, Onondaga 8/7/18 Bloom reported to have ended
Skaneateles Lake Cayuga, Cortland, Onondaga 9/6/18 Bloom reported to have ended
Somerset Lake Delaware 9/3/18 Bloom reported to have ended
Song Lake Cortland 7/12/18 Bloom reported to have ended
Song Lake Cortland 8/12/18 Bloom reported to have ended
South Merrits Pond Suffolk 8/37/18 No additional information
Sucker Brook Cayuga 8/20/18 Bloom reported to have ended
Sylvan Lake Dutchess 6/22/18 Bloom reported to have ended
Tanglewood Lake Steuben 8/4/18 No additional information
The Pond in Central Park New York 7/30/18 Bloom reported to have ended
Tully Lake Cortland, Onondaga 8/23/18 No additional information
Turtle Pond New York 9/10/18 Bloom reported to have ended
Tuxedo Lake Orange 8/29/18 Bloom reported to have ended
Vandercamp Lake Oswego 8/3/18 No additional information
Wainscott Pond Suffolk 8/15/18 Bloom reported to have ended
Wainscott Pond Suffolk 9/12/18 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
Wyomoco Wyoming 8/24/18 No additional information

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.