New to WDFN: see current water conditions throughout the state using the new State Pages. Filter by continuous data type and age of data, view latest values, and link to graphing options to explore the data further. To learn more, read our announcement on the Water Data for the Nation blog.

Hydrological Unit: Southern Long Island

HUC	Name
0203020202	South Oyster Bay-Jones Inlet
0203020203	Carmans River-Great South Bay
0203020204	Great South Bay-Fire Island Inlet
0203020205	Peconic River
0203020206	Shinnecock Bay-Atlantic Ocean
0203020207	Shelter Island Sound-Gardiners Bay
0203020208	Napeague Bay-Block Island Sound
0203020209	Long Island-Atlantic Ocean

Monitoring Locations