Four Nassau County beaches have been closed to bathing, a "precautionary measure" to guard against any negative impact from higher bacterial levels brought on by Thursday's heavy rainfall, county health officials said.

Closed are Creek Club, Locust Valley; Laurel Hollow Beach; North Hempstead Beach Park, Port Washington; and Piping Rock Beach Club, Lattingtown.

Storm water runoff can increase bacterial levels and impact water quality, officials said.

The health department provides recorded information on beach openings and closings at 516-227-9700.

Get the latest news and more great videos at NewsdayTV Credit: Newsday

Too many rainy weekends? ... LI Works: Making Countertops ... LEGO at Old Westbury Gardens ... Previewing the Knicks in the NBA Finals ... Get the latest news and more great videos at NewsdayTV

Get the latest news and more great videos at NewsdayTV Credit: Newsday

Too many rainy weekends? ... LI Works: Making Countertops ... LEGO at Old Westbury Gardens ... Previewing the Knicks in the NBA Finals ... Get the latest news and more great videos at NewsdayTV

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