Know Before You Go: These MA Beaches Are Closed Due To Bacteria

MASSACHUSETTS — With summer in full swing, many Massachusetts families are planning getaways to beaches for swimming, paddling and fishing.

But before you head out to a lake, pond or ocean beach, make sure your waterside destination is safe.

The state Department of Public Health monitors water quality at beaches across Massachusetts. When the water quality is unsafe, state officials post signs warning swimmers that there may be something harmful in the water, like E. coli or cyanobacteria.

As of this week, beaches from Framingham to Falmouth were off-limits due to unsafe water.

Causes of excessive bacteria entering the water include stormwater run-off, failing or malfunctioning septic systems, sewer overflows, leaking sewer pipes, wildlife and pet waste and agricultural runoff, according to DPH.

Most swim-related illnesses are associated with disease-causing organisms that are linked to fecal contamination.

Indicator organisms are used to predict the presence of pathogens associated with this fecal contamination. Enteric bacteria are indicator organisms found in the intestines of warm-blooded animals and humans often associated with fecal contamination.

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The bacteria used as indicator organisms to test the waters at beaches are Enterococci and E. coli. Marine beaches are tested for the presence of Enterococci. Freshwater beaches are tested either for the presence of E. coli or Enterococci.

An elevated presence of these organisms indicates the water may not be safe for human or animal consumption or contact and cause symptoms ranging from gastrointestinal pain to eye and ear discomfort to flu-like symptoms.

Most of these symptoms are minor, but occasionally a more serious illness may occur. Children, the elderly, and those with weakened immune systems are at greater risk for developing serious systems.

Some beach areas may remain open for recreational activities, though any contact with the water is strongly discouraged.

For the most up-to-date list of beach advisories, check the state DPH website.