Clark Avenue

Source Information

Sampling begins late May and runs through late August every summer. Beaches are monitored by the East Shore District Health Unit. Water samples are collected Mondays and results are available Tuesday afternoon. If a test comes back with high bacteria counts the beach will be tested again on Wednesday. The advisories are posted at the beaches and on the beach hotline. Swim Guide checks for the latest information daily, Monday - Friday during the monitoring swimming season. Marine beaches are marked Green when single sample results show Enterococci counts below 104 cfu / 100ml of water or when the geometric mean of 5 samples collected within a 30 day period are fewer than 35 MPN (Most Probable Number) colonies of Enterococci per 100 ml of water. Freshwater beaches will be marked green when test results show E. coli levels are below 235 units / 100 ml of water and when the geometric mean of 5 samples collected within a 30 day period is below 126 units of E. coli / 100ml Marine beaches are marked Red when single sample results show Enterococci counts above 104 cfu/ 100 ml of water or when the geometric mean of 5 samples collected within a 30 day period is greater than 35 MPN of Enterococci / 100 ml of water. Freshwater beaches are marked Red when single sample results show E.coli levels above 235 units/100ml or when the geometric mean of 5 samples collected within a 30 day period is above 126 units of E.coli / 100ml. A beach is marked Grey when there is no current or reliable monitoring information available. An off-hour hotline is: (203) 481-4233 ext. 5.