Nassau County Beach (credit: Mona Rivera/1010 WINS)

UNIONDALE, N.Y. (CBSNewYork) - Due to heavy rainfall, the Nassau County Department of Health has decided to close 19 beaches on Saturday for precautionary reasons.

Storm water runoff can have a negative impact by elevating bacterial levels, the Nassau County Department of Health said, and can affect bathing water quality.

WCBS 880s Sophia Hall reports

This is routine through the bathing season, Nassau Health Department Spokeswoman Mary Ellen Laurain told 1010 WINS. We start monitoring the beaches beginning in April through September, so this is as a precautionary measure because storm water runoff can impact the water quality.

The following beaches are closed:

Nassau County North Shore beaches *Centre Island Sound *Creek Club *Lattingtown Beach *Laurel Hollow Beach *Morgan Sound *North Hempstead Beach Park *Piping Rock Beach Club *Prybil Beach *Ransom Beach *Roosevelt Beach *Sea Cliff Village Beach *Soundside Beach *Stehli Beach *Tappen Beach

Nassau County South Shore beaches *Biltmore Beach Club *Hewlett Point Beach *Island Park Beach *Merrick Estates Civic Association *Philip Healey Beach

Nassau County residents, that should put a bit of a damper on some of your days. Sound off with your thoughts and comments in the section below

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Nassau County Department Of Health Closes 19 Beaches For Precautionary Reasons