The department says stormwater runoff has caused elevated levels of bacteria which are expected to last through Memorial Day.
RELATED: Which beaches are open in NY, NJ and CT?
Stormwater runoff can impact bathing water quality by elevating bacteria levels.
North Shore Beaches:
Centre Island Sound - Bayville
Creek Club - Lattingtown
Lattingtown Beach - Lattingtown
Laurel Hollow Beach - Laurel Hollow
Morgan Sound - Glen Cove
North Hempstead Beach Park - Port Washington
Piping Rock Beach Club - Locust Valley
Pryibil Beach - Glen Cove
Ransom Beach - Bayville
Theodore Roosevelt Beach - Oyster Bay
Sea Cliff Village Beach - Sea Cliff
Soundside Beach - Bayville
Stehli Beach - Bayville
Tappen Beach - Glenwood Landing
South Shore Beaches:
Biltmore Beach Club - Massapequa
Hewlett Point Beach - East Rockaway
Island Park Beach - Island Park