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.

On the latest episode of "Sarra Sounds Off," Newsday's Gregg Sarra and Matt Lindsay take a look top boys and girls basketball players on Long Island. Credit: Newsday

Sarra Sounds Off, Ep. 15: LI's top basketball players On the latest episode of "Sarra Sounds Off," Newsday's Gregg Sarra and Matt Lindsay take a look top boys and girls basketball players on Long Island.

On the latest episode of "Sarra Sounds Off," Newsday's Gregg Sarra and Matt Lindsay take a look top boys and girls basketball players on Long Island. Credit: Newsday

Sarra Sounds Off, Ep. 15: LI's top basketball players On the latest episode of "Sarra Sounds Off," Newsday's Gregg Sarra and Matt Lindsay take a look top boys and girls basketball players on Long Island.

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