MINEOLA, N.Y. (CBSNewYork/AP) — Health officials say most of Long Island’s beaches have reopened to swimming a day after they were closed due to concerns about bacteria levels.

In Nassau County, all beaches except for Biltmore Beach in Massapequa reopened Sunday.

The Health Department on Saturday had ordered 10 North Shore beaches and one on the South Shore closed.

Officials cited the heavy rains that generate stormwater runoff. The storm runoff can sweep bacteria and pathogens into local streams and bays, causing bacterial levels to spike.

For recorded information on beach closings and openings in Nassau, call 516-227-9700.

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