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Testing for Water Quality
Bathing Beaches - Freshwater and Marine

(searchable by MA town)

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The purpose of the water sampling regulations (105 CMR 445.000) is to protect the health, safety and well-being of the users of bathing beaches, to establish acceptable standards for the operation of bathing water and to establish a procedure for informing the public of any bathing water closures.

Barnstable County Department of Health and Environment takes water samples weekly (some beaches are monthly) from public bathing beaches during the summer months (approximately Memorial Day to Labor Day).  Samples are analyzed at the County lab for Enterococci levels in marine water and E.coli levels in fresh water.
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For inquiries into nutrient related ecological water quality issues within the Town of Harwich



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