HARMFUL ALGAL BLOOMS
BY COUNTY

The letter codes below refer to maximum bloom status that was
documented by the DEC HABs Program in each waterbody in each year.
S (Suspicious Bloom) DEC staff determined that conditions fit the description
of a cyanobacteria HAB based on visual observations and/or digital
photographs
C (Confirmed Bloom) Water sampling results have confirmed the presence
of a cyanobacteria HAB which may produce toxins or other harmful
compounds
HT (Confirmed with High Toxins Bloom) Water sampling results confirmed that
there were toxins present in quantities to potentially cause health effects
if people or animals came in contact with the water

ALBANY COUNTY
WATERBODY

2012

2013

2014

2015

Alcove Reservoir

C

Lawson Lake

HT

HT

C

C

HT

HT

HT

Myosotis Lake

C

Onderdonk Lake

C

Unnamed Pond Bozenkil

S

Unnamed Pond Slingerlands
Warners Lake
Washington Park Pond

2017

C

Basic Creek Reservoir
Buckingham Lake

2016

C

S

C

C
C

C
C

HT
C

C
HT

 ALLEGANY COUNTY
WATERBODY

2012

Alma Pond

S

2013

2014

2015

2016

Andover Pond

C

C

Cuba Lake

C

2017

BRONX COUNTY
WATERBODY

2012

2013

2014

2015

2016

2017

C

HT

C

2014

2015

2016

2017

S

S

S

S

Indian Lake

BROOME COUNTY
WATERBODY

2012

2013

Arctic Lake
Beaver Lake

C

HT

C

C

Laurel Lake

C

C

HT

C

White Birch Lake

C
C

C

S

CATTARAUGUS COUNTY
WATERBODY

2012

2013

2014

2015

2016

2017

Allegheny Reservoir

S

C

C

C

C

C

Beaver Lake

S

Beaver Lake Inlet

S

Cuba Lake
Lime Lake

C
HT

C

Quaker Lake
Red House Lake

HT
S

S

S

HT
S
S

S

S

 CAYUGA COUNTY
WATERBODY

2012

2013

2014

2015

2016

Blind Sodus Bay

S

C

Cayuga Lake

C

C

Dutch Hollow Brook

2017

HT

S

Lake Como

C

Lake Ontario
Owasco Lake

HT

HT

HT

C

S

S

S

HT

HT

HT

Skaneateles Lake

HT

Sucker Brook

C

CHAUTAUQUA COUNTY
WATERBODY

2012

2013

2014

2015

2016

2017

Chautauqua Lake

HT

HT

HT

HT

HT

HT

Findley Lake

HT

HT

C

C

2015

2016

2017

CHENANGO COUNTY
WATERBODY

2012

2013

2014

Bowman Lake

S

Chenango Lake

C

Echo Lake

C

Geneganslet Lake

C

C

S

Glenn Lake

S

Guilford Lake

C

Lake Petonia

HT

Long Pond

S

Norwich Reservoir E

S

Plymouth Reservoir

C

Thunder Lake
Warn Lake

S

HT
S

C

 CLINTON COUNTY
WATERBODY

2012

2013

2014

2015

Lake Champlain

2016

2017

C

S

2016

2017

COLUMBIA COUNTY
WATERBODY

2012

Copake Lake

S

2013

2015

C

Olana Pond
Robinson Pond

2014

S
C

C

Southerland Pond

HT

Dean Pond

HT

HT

HT

HT

HT

2013

2014

2015

2016

2017

CORTLAND COUNTY
WATERBODY

2012

Melody Lake

C

Skaneateles Lake
Song Lake

HT
HT

HT

HT

HT

Unnamed Pond Deruyter

HT

C

S

DELAWARE COUNTY
WATERBODY

2012

2013

2014

2015

Cannonsville Reservoir
East Sidney Lake

Titus Lake
Unnamed Pond Delancy

2017

C

S
S

Little Pond
Somerset Lake

2016

S
C

C
C
S

 DUTCHESS COUNTY
WATERBODY

2012

Ellis Pond

2013

2014

2015

2016

2017

S

Fall Kill Pond

S

Mirror Lake

S

Nooteeming Lake

S

Sepasco Lake

C

S

S

Stissing Pond

S

Wilcox Park Pond North

C

HT

2016

2017

ERIE COUNTY
WATERBODY

2012

2013

2014

2015

Delaware Park Lake

C

Lake La Salle

S

Unnamed Pond Collins

S

Unnamed Pond Grand Island

S

Unnamed Pond Orchard Park

S

Unnamed Pond Wales

S

ESSEX COUNTY
WATERBODY

2012

2013

2014

2015

Lake Champlain
Lake Placid

2017

C

S

HT

Lincoln Pond
Schroon Lake

2016

C
S

 FRANKLIN COUNTY
WATERBODY

2012

2013

Barnum Pond

2014

2015

2016

2017

C

S

C

C

S

S

S

2014

2015

2016

2017

C

C

S

Deer River Flow

C

Eagle Pond

S

Horseshoe Pond

C

Lake Ontario

FULTON COUNTY
WATERBODY

2012

2013

East Caroga Lake
Kyser Lake

S

Pleasant Lake

C

GENESEE COUNTY
WATERBODY

2012

2013

Mill Pond

2014

2015

C

HT

2014

2015

2016

2017

2016

2017

GREENE COUNTY
WATERBODY

2012

2013

Coxsackie Reservoir

C

Hollister Lake

C

Sleepy Hollow Lake

C

HT

C

 HAMILTON COUNTY
WATERBODY

2012

2013

2014

2015

2016

Eighth Lake

C

Lake Eaton
Lake Pleasant

2017

S
S

Seventh Lake

C

HERKIMER COUNTY
WATERBODY

2012

2013

2014

2015

Cedar Lake

C

Kyser Lake

S

2016

2017

2016

2017

JEFFERSON COUNTY
WATERBODY

2012

2013

Boyd Lake

2014

2015

HT

HT

Butterfield Lake

C

C

Grass Lake

C

C

C

Hyde Lake

S

Lake of the Woods

C

Lake Ontario

S

S

Millsite Lake

S
S

Moon Lake

HT

S

North Sandy Pond

C

HT

Payne Lake

S

Sixberry Lake

C

Sixtown Pond

S

C

S

 KINGS COUNTY
WATERBODY

2012

Prospect Park Lake

2013

2014

2015

2016

2017

S

C

HT

HT

HT

2014

2015

2016

2017

HT

HT

HT

C

C

LIVINGSTON COUNTY
WATERBODY

2012

2013

Avon Marsh Dam Pond
Conesus Creek

S

Conesus Lake

S

S

Hemlock Lake

C

MADISON COUNTY
WATERBODY

2012

2013

2014

Bradley Brook Reservoir

C

Cazenovia Lake

HT

C

C

Craine Lake

HT

HT

HT

2015

2016

C
HT

HT

De Ruyter Reservoir
C

Lake Moraine

C

C
HT
C

Sunset Lake
Tuscarora Lake

HT
HT

Hatch Lake

Oneida Lake

2017

S
C

S

S

C
S

HT
C

C

C

 MONROE COUNTY
WATERBODY

2012

2013

2014

2015

2016

Buck Pond

C

Cranberry Pond

HT

Durand Lake

HT

Lake Lacoma

S

Lake Ontario

S
S

Unnamed Pond Fairport

2017

C
S

S

C

NASSAU COUNTY
WATERBODY

2012

2013

2014

Schodack Pond

2015

2016

2017

S

NEW YORK COUNTY
WATERBODY

2012

2013

Harlem Meer

2014

2015

2016

2017

HT

HT

HT

C

C

C

HT

HT

HT

HT

HT

HT

2015

2016

2017

Morningside Pond
The Lake in Central Park

HT

HT

Turtle Pond

NIAGARA COUNTY
WATERBODY

2012

2013

2014

Forest Lake

C

Hyde Park Lake
Lake Ontario

C
S

S

S

 ONEIDA COUNTY
WATERBODY

2012

2013

2014

2015

2016

2017

C

S

S

S

HT

Oneida Lake
Unnamed Pond Delta Lake SP

S

ONONDAGA COUNTY
WATERBODY

2012

2013

2014

2015

2016

De Ruyter Reservoir

HT

Hiawatha Lake

C

Jamesville Reservoir

HT
C

Oneida Lake
Oneida River

2017

C
S

S

S

S

S

HT

HT

Otisco Lake

S

C

Skaneateles Lake

HT

Tully Lake

C

C

2016

2017

ONTARIO COUNTY
WATERBODY

2012

2013

2014

2015

Canadice Lake

C

Canandaigua Lake

HT

C

Hemlock Lake
Honeoye Lake
Muar Lakes

HT
C

S

HT

HT

HT

C

C

C

C
HT

S

Newark Reservoir
Seneca Lake

HT

HT

Sucker Brook

C

C

 ORANGE COUNTY
WATERBODY

2012

2013

2014

2015

2016

2017

Beaver Dam Lake

C

HT

HT

S

C

C

C

S

Brooks Lake
Brown's Pond
Four Corners Pond

C

S

S

C

Hessian Lake

S

Lake Tiorati

S

Little We Wah Lake

C

C

C

Muchattoes Lake

C

Orange Lake

C

C

Tomahawk Lake

S

HT

HT

Tuxedo Lake

C

C

C

Unnamed Pond Algonquin Park

C

S
S

Unnamed Pond East of Bullville
Wee Wah Lake

C

S
HT

HT

Winding Hills Park Lake

C

ORLEANS COUNTY
WATERBODY

2012

2013

2014

Lake Ontario

2015

2016

2017

S

S

S

Waterport Reservoir

S

OSWEGO COUNTY
WATERBODY

2012

2013

2014

2015

2016

2017

Lake Neatahwanta

C

C

HT

C

HT

HT

S

S

S

Lake Ontario
Lake Temalo
Lorton Lake

C
HT

 OSWEGO COUNTY CONTINUED
North Sandy Pond
Oneida Lake

C

S

C

HT

S

S

Oswego River

HT

HT

Panther Lake

C

Pennellville Pond

C

Pleasant Lake

C

HT

South Sandy Pond

C
S

OTSEGO COUNTY
WATERBODY

2012

2013

2014

2015

Allens Pond

2016

2017

C

Canadarago Lake

C

Gilbert Lake

C

C
S

PUTNAM COUNTY
WATERBODY

2012

2013

2014

Barger Pond

2015

2016

2017

S

S

S

China Pond

C

Croton Falls Reservoir

S

Indian Lake

C

Kirk Lake

C

HT

Lake Carmel

C

C

C

S

C

C

S

S

C

C

Lake Casse
Lake Peekskill

C

HT

Lake Tonetta

C

S

Palmer Lake

C

Patterson Veterans Park Swim Pond
Peach Lake

S

S
HT

C

C

C

 PUTNAM COUNTY CONTINUED
Putnam Lake

HT

Roaring Brook Lake

HT

C

C

C

C

HT

C

HT

Secor Lake

S

QUEENS COUNTY
WATERBODY

2012

Bowne Pond

S

2013

2014

Golden Pond

2015

2016

2017

C

C

C

S

HT

C

HT

HT

C

HT

Goose Pond
Kissena Lake

S

HT

HT

Oakland Lake

C

RENSSELAER COUNTY
WATERBODY

2012

2013

2014

2015

Big Bowman Pond

2016
C

Burden Lake

C

Burden Third Lake

C

C

Hampton Manor Pond

S

Long Pond

S

Nassau Lake

S

Snyders Lake

C

Tomhannock Reservoir
Valatie Kill
Vosburg Pond

2017

C

C
C

HT
C

C
S

S

S
S

C
C

 RICHMOND COUNTY
WATERBODY

2012

2013

2014

2015

Allison Pond

2016

2017

C

C

Brooks Lake

HT

C

HT

Clove Lake

S

C

HT

Martlings Lake

HT

C

HT

Raritan Bay Park Pond

S

Silver Lake Reservoir

S

C

HT

Willowbrook Pond

C

Wolfes Pond NE

HT

Wolfes Pond SW

HT

HT

2015

2016

ROCKLAND COUNTY
WATERBODY

2012

2013

Congers Lake

HT

Hackensack River East Branch

S

2014

S

Hessian Lake

S

Lake Boyce
Lake Lucille

S
C

C

Lake Welch
Rockland Lake

2017

S
S

S

C

S

S

C

2015

2016

2017

SARATOGA COUNTY
WATERBODY

2012

2013

2014

Ballston Lake

C

C

C

C

Round Lake
Saratoga Lake

HT

HT

C

C

C

HT

 SCHENECTADY COUNTY
WATERBODY

2012

Duane Lake

C

2013

2014

2015

C

S

Iroquois Lake
Mariaville Lake

2016

2017
C

S

C

C

C

HT

HT

2014

2015

2016

2017

SCHOHARIE COUNTY
WATERBODY

2012

2013

Central Bridge Upper Reservoir

HT

Engleville Pond

C

Looking Glass Pond

C

Mallet Pond

C

Summit Lake

S

Vlaie Pond

S

SCHUYLER COUNTY
WATERBODY

2012

2013

Cayuta Lake

S

2016

2017

C

C

HT

Lamoka Lake

S

S

S

Lamoka Lake Channel

S
HT

HT

Seneca Lake

2014

2015

HT

Unnamed Pond Burdett
Waneta Lake

S
S

S

S

S

 SENECA COUNTY
WATERBODY

2012

2013

Cayuga Lake

2014

2015

C

Cayuga-Seneca Canal

C

Seneca Lake

HT

Van Cleef Lake

S

2016

2017

C

HT

HT

HT

ST LAWRENCE COUNTY
WATERBODY

2012

2013

2014

2015

2016

2017

Black Lake

HT

HT

HT

C

C

C

C

C
S

S

S

Grass Lake
Lake Ontario
Silver Lake

C

C

St Lawrence River

S

STEUBEN COUNTY
WATERBODY

2012

Goodhue Lake

S

2013

2014

2015

2016

Keuka Lake

HT

Mosko Beachville Dam
Mud Lake

S
S

Smith Pond

HT

C

C

C

Tanglewood Lake

C
S

Unnamed Pond Cameron Mills
Waneta Lake

2017

HT
S

S

S

S

 SUFFOLK COUNTY
WATERBODY

2012

Agawam Lake

2013

2014

2015

2016

2017

HT

HT

HT

HT

HT

C

C

C

Big Reed Pond
Blydenburg Lake

C

Coopers Neck Pond

C

Deep Pond

HT

Division Pond

S

Fort Pond

C

C

S

S

S

C

C

C

Hook Pond

C

C

Kellis Pond

C

C

C

C

HT

HT

Fresh Pond (Hither Hills SP)

S

Fresh Pond (Shelter Island)
Georgica Pond

S
S

Lake Capri
Lake Ronkonkoma

C
C

C

Laurel Lake

C

Little Fresh Pond
Maratooka Lake

C
HT

HT

HT

Marion Lake

HT

C

Meadow Brook Pointe- Mill Pond Golf Course

C

Mecox Bay

C
C

HT

HT

Niger Pond
Old Town Pond

C

C

Mckay Pond

Mill Pond (Watermill)

C

HT

C

C
C

C

C

Peconic Lake

C

Peconic River

C

C

Pond at Victorian Gardens

C

Poxabogue Pond

C

Prestons Pond

C

Roth Pond

C

HT

HT

 SUFFOLK COUNTY CONTINUED
Sagaponack Lake

C

C

C

Sayre Pond

C
C

Setauket Mill Pond

C

Spring Lake

C

C

Stony Brook Duck Pond

C

C

Unnamed Pond Greenport

S

Wainscott Pond

C

Wickapogue Pond

C

C

C

C

Willow Pond

C

SULLIVAN COUNTY
WATERBODY

2012

2013

2014

Evens Lake

2015

2016

2017

HT

HT

HT

Fox Lake

C

Kiamesha Lake

C

Lake Anawanda

C

Lake Huntington
Montgomery Lake

C
C

C

Morningside Lake

S

S

C

C

C

C

HT

HT

HT

S

Mountain Lake

HT

Pleasure Lake

C

Wolf Lake

C

C

TIOGA COUNTY
WATERBODY
Unnamed Pond Berkshire

2012

2013

2014

2015

2016

2017
C

 TOMPKINS COUNTY
WATERBODY

2012

2013

Cayuga Lake

2014

2015

2016

2017

C

HT

HT

C

2015

2016

2017

S

S

C

Dryden Lake

ULSTER COUNTY
WATERBODY

2012

2013

2014

Chodikee Lake
Esopus Creek

S

Rondout Creek

C

Sturgeon Pool

S

Tillson Lake

S

Unnamed Pond Kingston

S

Unnamed Pond New Paltz

S

Unnamed Wallkill Pond

C

Wallkill River

S

HT

2015

2016

WARREN COUNTY
WATERBODY

2012

2013

Friends Lake

2014

C

Glen Lake

C

Lake Sunnyside

C

Loon Lake

C

Schroon Lake

2017

C
C
S

 WASHINGTON COUNTY
WATERBODY

2012

Cossayuna Lake

2013

2014

2015

HT

C

C

2016

2017
S

Hadlock Pond

C

Lake Champlain
Summit Lake

S

C

S

S

C

2016

2017

WAYNE COUNTY
WATERBODY

2012

2013

2014

Blind Sodus Bay

S

Casey Park Pond

S

Lake Ontario

C

S

Port Bay
Sodus Bay

2015

C
S

C

S

S

C

C

C

C

C

WESTCHESTER COUNTY
WATERBODY

2012

2013

2014

2015

2016

2017

Bedford Lake

C

C

C

C

HT

C

Blue Heron Lake

HT

Goodliffe Pond

S

Grassy Sprain Reservoir

C

Halsey Pond

S

Lake Katonah

C

C

C

Lake Lincolndale

C

HT

C

HT

HT

C

Lake Mohegan

C

HT
C

Lake Oscaleta

C

Lake Rippowam

C

C

HT

S

Lake Waccabuc
Lounsbury Pond

C

C

C

S

 WESTCHESTER COUNTY CONTINUED
Muscoot Reservoir

S

New Croton Reservoir

S

New Rochelle Reservoir No.1

S

HT

New Rochelle Reservoir No.3

S

North Lake

C

Peach Lake

HT

C

Sheldrake Lake

C

C

S

Silver Lake

S

Tarrytown Reservoir

S

Truesdale Lake

C

S

2013

2014

2015

2016

2017

HT

HT

C

HT

C

HT

WYOMING COUNTY
WATERBODY

2012

Java Lake

C

Silver Lake

HT

Wyomoco Pond

S

YATES COUNTY
WATERBODY
Canandaigua Lake

2012

2013

2014

2015

2016

2017

HT

C

HT

Keuka Lake
Seneca Lake
Unnamed Pond Keuka Park

HT
HT

HT

HT
S