200 Main Street, Hyannis, MA. 02601

Beach Status

Cyanobacteria update 10-12-18


Pet Advisory:


Long Pond Centerville










Pet Advisory: 

Toxic cyanobacteria are present <20,000cells/ml.

Cyanobacteria may have not collected into a film on the surface.

Pond shows slight discoloration, but you can easily see through water.

·        Low to minimal health risks to people

·        Higher risks for pets



Toxic cyanobacteria may have started to collect and form a film on the surface >20,000 cell/ml and Microcystin (toxin) 1-5 ppb

Pond shows slight to moderate discoloration.

Can see through water, but water is cloudy.

·        Low to moderate health risks for people

·        Higher risk for babies and small children

·        Higher risks for pets



Toxic cyanobacteria have collected and formed a scum on shore or thick film on the surface (looks like soup or paint)>70,000cells/ml and Microcystin toxin >10ppb. Pond shows moderate to extreme discoloration. Water is very cloudy -visibility <4ft.

·        Moderate to severe health risks for people

·        Highest risks for pets






Thomas Mckean
P 508-862-4644
F 508-790-6304
E Health
200 Main Street
Hyannis, MA. 02601

Public Records
Ann Quirk
Public Records Request


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