No data available
This status is based on the latest sample. New Hampshire Department of Environmental Services updates the status of this beach as soon as test results become available. These results were posted to Swim Guide on December 31st at 7:00 PM.
Foss Beach is sampled Bi-Weekly from May 15th to September 5th
The New Hampshire Department of Environmental Services monitors water quality at beaches in the state from Memorial Day to Labor Day. Water samples are collected several times a week throughout the swimming season. When advisories are issued, they are posted on the DES website and on its beach advisory Twitter feed (@NHDES_Beaches). Swim Guide checks for the latest information daily during the monitoring season. A beach is marked Green when it meets water quality standards. A freshwater beach is marked Red when two consecutive samples exceed 88 counts of E. coli per 100ml or when the geometric mean of at least three samples collected in a 60-day period exceeds 47 counts of E. coli per 100ml of water. A marine beach is marked Red when two consecutive samples exceed 104 counts of Enterococci per 100ml or when the geometric mean of at least three samples collected in a 60-day period exceeds 35 counts of Enterococci per 100ml of water. A beach is marked Grey when current or reliable information is unavailable.
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