A pair of Suffolk County beaches and one in Nassau County have been temporarily closed to swimmers due to high levels of bacteria in the water.

Health officials announced on Wednesday, July 22 that Venetian Shores Beach in Lindenhurst and Benjamin Beach in Bay Shore have been temporarily shut down when tests determined the water was contaminated.

Crescent Beach in Glen Cove is also closed due to elevated bacteria levels from the Long Island Sound.

Beach closure and re-opening assessments are conducted on a daily basis as new sampling results are received. The beaches will reopen once the tests come back showing an acceptable level of contamination.

According to health officials, bothEnterococciandE.colibacteria can be introduced to recreational waters from a variety of sources, including stormwater runoff, resident waterfowl populations, failing or poorly operating septic systems, sewage spills, boats and marinas, floatable debris, and from bathers themselves.

At marine and coastal beaches in Suffolk County, stormwater runoff is the predominant source of bacteria-laden water, according to the Department of Health. Stormwater runoff becomes contaminated with bacteria as it flows across roadways, yards, parking lots, and other lands.

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Three Long Island Beaches Close After High Levels Of Bacteria Discovered - Daily Voice