New Blue-Green Algae Blooms Confirmed in East Hampton, Flanders; Health Alert Issued

Suffolk County health officials have confirmed new harmful cyanobacteria blooms in Town Pond in East Hampton and Silver Brook Pond in Flanders, urging residents to avoid the water and keep children and pets away.

Suffolk County health officials have confirmed harmful cyanobacteria blooms, commonly known as blue-green algae, in Town Pond in East Hampton and Silver Brook Pond in Flanders, prompting warnings for residents to stay out of the water until further notice.

Suffolk County Advisory: Avoid the Water, Keep Kids & Pets Away

The Suffolk County Department of Health Services said surface water samples analyzed by Stony Brook Southampton confirmed the presence of the blooms. Residents are advised not to use either body of water and to keep children and pets away from the affected areas.

Blue-green algae occur naturally in lakes and streams in low concentrations but can rapidly multiply under certain environmental conditions, creating harmful blooms. The algae may appear green, blue-green, yellow, brown or red and can form floating scum or give the water a paint-like appearance.

Green algae. Photo: Jake Ninobur

Health officials advise avoiding contact with any water that appears discolored or scummy. Anyone who comes into contact with the water should rinse off immediately with clean water.

People experiencing symptoms after exposure — including nausea, vomiting, diarrhea, skin, eye or throat irritation, allergic reactions or difficulty breathing — should seek medical attention.

To report a suspected blue-green algae bloom at a Suffolk County-permitted bathing beach, contact the Suffolk County Department of Health Services’ Office of Ecology at 631-852-5760 between 8:30 a.m. and 4:30 p.m. or email scdhsweb@suffolkcountyny.gov.

Suspected blooms at freshwater bodies that do not include a Suffolk County-permitted bathing beach should be reported to the New York State Department of Environmental Conservation by emailing habsinfo@dec.ny.gov.

New York state also maintains an online map tracking confirmed harmful algal blooms across freshwater bodies statewide.