Central Watersheds (42 active) draining a portion of interior NYS down to the Atlantic Ocean via Long Island Sound, including the water supply for New York City

Upper Hudson River Watershed (0 active) drains an area in central NYS to the east of center, starting in the Adirondacks, and flowing south toward Long Island Sound; the section south of Albany is reported as Lower Hudson River Watershed

Mohawk River Watershed (2 active) drains the area starting just west of the center of NYS, and gathers run-off through the south side of the Adirondacks as it flows mainly east to join the Hudson River in Albany County. Schoharie Creek flows north from the Catskills and drains a channel of the central state north to join the Mohawk River.

Bear Gulch Pond (2 active)

◆ July 12, 6:25 pm widespread/lakewide bloom confirmed in Schoharie County. The location tag indicates shoreline on the east side of the lake near Bear’s Den Dr. Reported by the public. 

• July 7, 7:52 am large localized bloom confirmed in Schoharie County remains active this week. The location tag puts this bloom mid-water in the north end of the lake. Reported by NYS DEC staff.

Vlaie Pond (0 active)

Large localized bloom confirmed in Schoharie County on June 24 has been archived.

North-South Lake (0 active)

Small localized bloom confirmed in the Catskills Mountains Greene County on June 24 has been archived.

Thompsons Lake (0 active)

Small localized bloom confirmed June 15 in Albany County has been archived.

Lower Hudson River Watershed (10 active) draining the lower portion of New York State interior out to the Atlantic.

Nooteeming Lake (0 active)

A small localized bloom confirmed in Dutchess County on June 29 has been archived. 

Deer Lake (0 active)

A small localized bloom confirmed June 30 in Dutchess County has been archived.

A second small localized bloom is confirmed at what appears to be the same site on Deer Lake as of June 29 has been archived.

Seven Hills Lake (2 active)

◆ July 10, 11:30 am a widespread/lakewide bloom has been confirmed in Putnam County. The location tag for this report is mid-lake. Reported to NY DEC by CSLAP.

◆ July 9, 10 am small localized bloom confirmed in Putnam County, location appears mid-lake also. Reported by CSLAP.

Putnam Lake (0 active)

A widespread/lakewide bloom confirmed June 29 in Putnam County has been archived. 

A small localized bloom confirmed June 29 in Putnam County has been archived.

Lake Carmel (0 active) flows into the west branch of the Croton River, eventually reaches the Croton Reservoir, City of New York water source

Two small localized blooms confirmed June 26 in Putnam County by NYS DOH have been archived.

Lake Casse (0 active)

Small localized bloom confirmed on June 23 has been archived. Reported in Putnam County by NYS DOH. Another 2022 bloom record was posted for this lake on June 13 has been archived.

Roaring Brook Lake (1 active)

◆ July 13, 3:56 pm small localized bloom confirmed in Putnam County. The location tag is placed on the beach at the end of Spur Rd, a point in the south end of the water body.

Three previous bloom events this season have been archived.

Lake Peekskill (2 active)

• July 2 11:45 am small localized bloom confirmed in Putnam County remains active this week. The location tag on NYHABS puts this on the east shore near the point.
  • July 2, 11:45 am small localized bloom confirmed in Putnam County remains active this week. The location tag puts this one in the north end. 

A small localized bloom confirmed on June 29 has been archived.

A small localized bloom confirmed June 26 north of the point, along the east shore has been archived.

Another small localized bloom confirmed June 26 appears from the map tag right on shore in the north end of the lake off Northway Rd has been archived.

Lake Lincolndale (0 active)

A large localized bloom confirmed June 19 has been archived. A previous bloom on this lake reported June 5 has been archived.

Lake Mohegan (2 active)

• July 7, 3:48 pm small localized bloom confirmed in Westchester remains active this week. The location tag places this bloom mid-lake.
  • July 5, 9:50 am small localized bloom confirmed in Westchester County at Mohegan Park Beach remains active this week. Reported by NYS DOH.

A small localized bloom confirmed June 28 has been archived; a widespread/lakewide bloom confirmed June 19 has been archived.

Lake Tiorati (0 active)

A large localized bloom confirmed June 24 has been archived. 

Beaverdam Lake (2 active)

◆ July 14, 11:05 am small localized bloom confirmed in Orange County, appears to be located on the east side, just before the lake narrows going north. Reported by the public.

◆ J uly 13, 9:39 pm large localized bloom confirmed in Orange County, appears to be located in the eastern-most point at the shore. Reported by the public.

June 30 bloom has been archived; a bloom reported June 29 has been archived.

Another Eight previous bloom reports this season for Beaverdam Lake have been archived.

Lake Welch (1 active)

◆ July 12, 3pm widespread/lakewide bloom confirmed in Rockland County near the location of the first bloom this season, mid-lake in the north end. Reported by NYS Parks.

A widespread/lakewide bloom confirmed June 26 has been archived.

Rockland Lake (0 active)

A small localized bloom confirmed in May has been archived.

Delaware River (1 active) drains a portion of south-central NYS into the Delaware River and out to Long Island Sound.

Silver Lake (0 active)

A widespread/lakewide bloom confirmed in Sullivan County on June 30 has been archived.

Evens Lake (1 active)

◆ July 11, 6 am large localized bloom confirmed in Sullivan County. The location tag appears at the centre of the lake. Reported by the public.

Housatonic River (0 active) draining a small part of Dutchess County, the river itself originates in Vermont, flows south through Massachusetts and Connecticut to the outlet into Long Island Sound east of Bridgeport.

Unnamed Water Body (Pawling) widespread or lakewide bloom confirmed in Dutchess County on June 21 is archived.

Atlantic Ocean/Long Island Sound Watershed (19 active)

Unnamed Water (1 active)

• July 5, 11:30 am widespread/lakewide bloom confirmed in Westchester County remains active this week. The location tag places this at South Salem, between Cross River Rd and Sabbathday Hill Rd. Reported by the public.

Lake Waccabuc (0 active)

A widespread/lakewide bloom confirmed June 26 has been archived.

Sheldrake Lake (0 active)

A Large localized bloom confirmed June 22 has been archived. 

Glenwood Lake (0 active)

A widespread/lakewide bloom confirmed on June 21 has been archived. 

Harlem Meer(1 active)

◆ July 12, 12:53 pm small localized bloom confirmed in Manhattan. NYC Parks reporting.

A small localized bloom confirmed on the north end of Central Park June 30 has been archived. 

Turtle Pond (1 active)

◆ July 12, 11:30 am large localized bloom confirmed in Manhattan. NYC Parks made the report.

Large localized bloom confirmed in Central Park June 30 has been archived.

The Lake in Central Park (2 active)

◆ July 12, 11:18 am widespread/lakewide bloom confirmed in Manhattan. Reported by NYC Parks.

• July 6, 11 am widespread/lakewide bloom confirmed in New York County remains active this week.

Four previous blooms confirmed this season have been archived.

Prospect Park Lake (1 active)

◆ July 15, 11 am widespread/lakewide bloom confirmed in Kings County (Brooklyn). Reported by NYC Parks.

Two widespread/lakewide blooms confirmed June 24 and July 1 have been archived, along with two previous blooms this season.

Martling's Pond/Richmond Lake (1 active)

◆ July 14, 2:31 small localized bloom confirmed in Richmond County (Staten Island). Reported by NYC Parks.

Clove Lake (1 active)

◆ July 14, 2:11 pm large localized bloom confirmed in Richmond County (Staten Island). Reported by NYC Parks.

Silver Lake Reservoir (1 active)

◆ July 14, 3:11 pm widespread/lakewide bloom confirmed in Staten Island. Reported by NYC Parks.

Goose Pond in Captain Tilly Park (1 active)

◆ July 11, 11:03 pm widespread/lakewide bloom confirmed in Queens. Reported by NYC Parks.

Widespread/lakewide bloom confirmed June 21 has been archived, along with a bloom confirmed earlier this season.

Kissena Lake (1 active)

◆ July 14, 11:53 am widespread/lakewide bloom confirmed in Queens. Reported by the NYC Parks.

Roth Pond, on the campus of Stony Brook University (0 active)

A widespread/lakewide bloom confirmed June 22 has been archived, along with seven previously confirmed algae blooms this season.

East Marion Lake (1 active)

• July 5, 4:14 pm a bloom of unreported extent confirmed in Suffolk County remains active this week.

Maratooka Lake (2 active)

◆ July 12, 4:48 pm a bloom of unreported extent has been confirmed in Suffolk County. Reported by Stony Brook University.

• July 5, 4:13 pm a bloom of unreported extent confirmed in Suffolk County remains active this week.

A bloom confirmed June 27 has been archived.

Wainscott Pond of the Hamptons (1 active)

• July 6, 3:07 pm widespread/lakewide bloom confirmed in Suffolk County remains active this week.

Six previous bloom reports for the 2022 season have been archived.

Agawam Lake, near the Hampton Bays (2 active)

◆ July 12, 4:47 pm widespread/lakewide bloom confirmed in Suffolk County. Reported by Stony Brook University.

• July 6, 3:11 pm widespread/lakewide bloom confirmed in Suffolk County remains active this week.

Seven blooms have been recorded previously this season and archived.

Mill Pond (Watermill) (2 active)

◆ July 12, 4:48 pm widespread/lakewide bloom confirmed in Suffolk County. Reported by Stony Brook University.

• July 6, 3:10 pm widespread/lakewide bloom confirmed in Suffolk County remains active this week. Reported by Stony Brook University.

Four previous blooms for the season have been archived.

NE Watersheds (2 active) draining an area of north and northeast NYS out to the St. Lawrence River

Lake Champlain Watershed (1 active) flows starting in the north-central part of the state, in the Adirondacks, flowing generally east to Lake Champlain.

Lake Champlain (1 active)

• July 13, 3:30 pm small localized bloom confirmed at a point just north of the Pointe au Roche State Park in Clinton County. Reported by NYS Department of Health.

St. Lawrence River Watershed (1 active)

Black Lake (1 active)

• July 7, 1:13 pm the large localized bloom confirmed in St. Lawrence County on the north/west shore, halfway down the shoreline remains active this week.

NW Watersheds (29) (draining west to Lake Erie or Lake Ontario)

Lake Ontario Minor Tributaries Watershed (2 active)

Braddock Bay, Lake Ontario (0 active)

Two small localized blooms confirmed June 20 and a lakewide bloom confirmed July 1 have been archived.

Mud Bay, Lake Ontario (1 active)

• July 4, 8:24 am large localized bloom confirmed in Mud Bay at the Kents Creek outlet in Jefferson County remains active this week.

Casey Park Pond (1 active)

• July 4, 10:34 am small localized bloom confirmed at the west end of Casey Park Pond in Wayne County remains active this week. Casey Park Pond is a long narrow body of water running east-west. It is located south of Kenyon Road off Ontario Centre Rd.

Black River Watershed (0 active) draining an area of central NYS west to Lake Ontario

Niagara River – Lake Erie Watershed (1 active) draining northwest NYS west to Lake Erie

Ellicott Creek (1 active)

• July 7, 2:30 pm widespread/lakewide bloom confirmed in Erie County remains active this week. The location tag appears in Ellicott Creek County Park. Reported by the public.

Genesee River Watershed (7 active) draining a band of west-central NYS from the south border to the north, emptying into Lake Ontario at Rochester, Monroe County

Conesus Lake (2 active)

◆ July 13, 2:37 pm small localized bloom confirmed in Livingston County. The bloom appears to be east shore, in the south end of the lake, near Turkey Hill, about halfway between Walkleys Landing and Excelsior Springs. Reported by NYS DOH.

◆ July 12, 11 am large localized bloom confirmed in Livingston County, appears by the location tag and report to be near the east shore at Camp Stella. Reported by NYS DOH.

Honeoye Lake (4 active)

◆ July 11, 10:18 am open water bloom confirmed in Ontario County. The location tag shows this bloom to be midlake, from Pickerel Point. Reported by the Honeoye Lake Watershed Task Force.

• July 8, 10:36 am large localized bloom confirmed in Ontario County, south end of the lake, east shore just north of the NYS Boat Launch on Honeoye Lake State Park Rd remains active this week.
• July 7, 9:22 am small localized bloom confirmed in Ontario County south of the boat launch remains active this week. The location tag nearest land location is Laura Lane. 
• July 4, 12:58 pm widespread/lakewide bloom confirmed in Ontario County remains active this week. Location appears just offshore between Sleepy Hollow Lake and Joe Bear Dr.

Six blooms confirmed in June have been archived.

Avon Marsh Dam Pond (0 active)

A widespread/lakewide bloom confirmed June 28 has been archived

Silver Lake (1 active)

• July 3, 9:59 am small localized bloom confirmed in Wyoming County remains active this week. The location tag appe­ars at the south end of the lake, off the shore Silver Lake State Park.

A previous bloom report from June 24 has been archived.

Oswego River – Finger Lakes Watershed (19 active)

Cross Lake (1 active)

• July 4, 9:49 am widespread/lakewide bloom confirmed in Cayuga County on the north side of Erie Canal inlet to Cross Lake remains active this week.

Otisco Lake (6 active)

◆ July 15, 12:30 pm small localized bloom confirmed in Onandaga County, in the shallow water off Lundy Point. Reported by the public.

◆ July 11, 8:43 am large localized bloom confirmed in Onandaga County. The tag appears on the east shore, south of Fitzgerald Pt. Reported by the public.

◆ July 10, 10:43 am large localized bloom confirmed in Onandaga County. The tag places this bloom on the east shore, in the same general location as the Jul 11 confirmed bloom, with a photo looking very similar to the Jul 11 bloom. Reported by the public.

◆ Jul 10, 2:30 pm small localized bloom confirmed in Onandaga County, appears toward the south end, east shore, near the Rice Brook outlet. Reported by the public.

• July 7, 6:06 pm small localized bloom confirmed in Onandaga County remains active this week. The location tag places this bloom south of Williams Grove off the beach nearest Otisco Valley Rd. 
• July 7, 10:17 pm small localized bloom confirmed in the vicinity of Rice Grove, Onandaga County remains active this week.

Cayuga Lake (8 active)

◆ July 15, 12:19 pm small localized bloom confirmed in Tompkins County (west shore), appears near Trumansburg access. Reported by NYS Parks.

◆ July 13, 10:15 am small localized bloom confirmed in Tompkins County appears off west shore around the area of Trumansburg. Reported by the Community Science Institute.

◆ July 13, 3:30 pm small localized bloom confirmed in Tompkins County (west shore) south of Trumansburg access. Reported by Community Science Institute.

◆ July 13, 10:45 am small localized bloom confirmed in Cayuga County. The location tag places this bloom on the east shore, south of the point nearest the intersection of Lake St. and Lower Lake Rd. Reported by the Community Science Institute.

◆ July 13, 4:23 pm small localized bloom confirmed in Cayuga County,

• July 8, 11:51 am small localized bloom confirmed in Cayuga County, east shore near Lake St and Lower Lake Rd remains active this week.
• July 8, 12-noon small localized bloom confirmed in Cayuga County remains active this week. By the location tag, this bloom appears on the beach south of the boat launch at Lake St. 
• July 7, 4 pm small localized bloom confirmed in Cayuga County remains active this week. This bloom appears north of the boat launch, in line with Genesee St. 

Small localized bloom confirmed Jul 2 in Cayuga County has been archived.

Jamesville Reservoir (1 Active)

◆ July 13, 2 pm small localized bloom confirmed in Onandaga County, appears as a scum on Jamesville Beach. Reported by NYS DOH.

Song Lake (1 active)

◆ July 15, 8:22 am small localized bloom confirmed in Cortland County, reported by the public. By the location tag, it appears closer to the west shore, about halfway down the length of the lake starting from the northwest corner.

A small localized bloom confirmed June 25 in Cortland County has been archived.

Fairport Reservoir, large localized bloom confirmed June 23 at the north end of the western reservoir has been archived.

Dryden Lake (1 active)

◆ July 13, 11 am bloom of unreported extent confirmed midlake in Tompkins County. Reported by the public.

Casterline Pond (1 active)

◆ July 11, 5:16 pm widespread/lakewide bloom confirmed in Cortland County. Location tag indicates the south bowl of this small water body near Homer; from the photos, the bloom appears extensive.

South/West Watersheds (20 active blooms) draining southwest NYS west to the Ohio River/Mississippi system, and the watersheds draining the south central NYS down to the Atlantic via Chesapeake Bay )

Allegheny River Watershed (17 active) – drains West to the Ohio River.

Chautauqua Lake (17 active)

All HABs appear in the south half of the lake, south of Long Point. The north end appears clear so far.

◆ July 11, 10:15 am widespread bloom confirmed in Chautauqua County, location tag shows east shore, the beach nearest Cheney Dr. Reported by CLA.

◆ July 11, 10:55 am large localized bloom confirmed in Chautauqua County, appears to be located on the south beach nearest Front St and E Terrace Ave, between Celoron and Lakewood. Reported by CLA.

◆ July 11, 3:26 pm large localized bloom confirmed in Chautauqua County, near W Summit Street. Reported by CLA.

The following 14 blooms remain active this week:

• July 8, 9:51 am large localized bloom confirmed at Celeron in the south end near the inlet, reported by the public.
• July 8, 9:59 am large localized bloom confirmed on the north shore of the south end of the lake, along the shoreline where Denslow Ave curves and heads north. Reported by the Chautauqua Lake Association.
• July 8, 10:55 am large localized bloom confirmed off W Summit St. Reported by the public.
• July 8, 11:10 am large localized bloom confirmed off shore, nearest land location is Bittersweet Rd N. Reported by the Chautauqua Lake Association.
• July 8, 11:20 am large localized bloom confirmed on the beach nearest the dead end of Bell Ave. Reported by the Chautauqua Lake Association.
• July 8, 11:30 am large localized bloom confirmed, near Duquette St. Reported by the Chautauqua Lake Association.
• July 8, 11:54 am large localized bloom confirmed at the Lakewood launch, reported by the Chautauqua Lake Association.
• July 8, 12:27 pm large localized bloom confirmed at YW Beach off Front St. Reported by the Chautauqua Lake Association.
• July 8, 12:35 pm small localized bloom confirmed off Lakewood Beach, at Richard Harley Park. Reported by the Chautauqua Lake Association.
• July 8, 12:42 pm small localized bloom confirmed at the Sherman Launch, reported by CLA.
• July 8 1:05 pm small localized bloom confirmed in the VU canal, appears to be located north of the Edward F. Loomis Park around the point nearest Keller Rd, Lakeshore Drive. Reported by the Chautauqua Lake Association.
• July 7, 1:00 pm small localized bloom confirmed at Celeron, south end near the inlet. Reported by the public.
• July 7 10:56 am large localized bloom confirmed south of Long Point, reported by NYS Parks.
• July 4, 9:45 am small localized bloom confirmed at the beach near East Lake Rd and Bellevue Heights. Reported by the public.

A small localized bloom confirmed June 22 at the south end of the lake has been archived.

A small localized bloom was confirmed June 21 at Bemus Bay has been archived. Reported by Chautauqua Lake Association in Chautauqua County.

Small localized bloom confirmed June 20 at Long Park Point Marina has been archived.

Chemung River (1 active) drains south central NYS to join the Susquehanna River

Tanglewood Lake (1 active)

• July 4, 10:30 am small localized bloom confirmed mid-lake in Steuben County remains active this week. Reported by CSLAP.

Loon Lake (0 active)

The large localized bloom confirmed June 25 has been archived. 

A large localized bloom reported June 22 in the centre of the lake has been archived.

Goodhue Lake (0 active)

Widespread/lakewide bloom confirmed June 11 in Steuben County has been archived.

Susquehanna River Watershed (2 active) drains south-central New York State flowing southwest, then south, eventually emptying into the Atlantic Ocean at Chesapeake Bay.

Yogi and Boo Boo’s Campground Pond (1 active)

◆ July 14, 3:20 pm small localized bloom confirmed in Broome County (reported on NY HABs as Wyoming County. Northeast of the intersection of Brownton and Jennings Rds.

Earlville Lake (1 active)

◆ July 10, 11 am Small localized bloom confirmed in Madison County. The location tag places this bloom in the northwest corner, off Craine Lake Rd. Reported by CSLAP under the heading Craine Lake

Bradley Brook Reservoir (0 active)

A small localized bloom confirmed on June 29 in Madison County has been archived.

Lake Moraine (0 active)

A small localized bloom confirmed in June in south Madison County has been archived.

De Ruyter Reservoir (0 active)

The bloom confirmed in June in southwest Madison County has been archived.

Ramapo River Watershed (0 active) drains a small section in the southeast part of New York State south through New Jersey and out into the Atlantic Ocean at Chesapeake Bay.