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Groundwater levels for the Nation

! Ground water level pages will be decommissioned in early 2026. These gwlevel pages are frozen as of November 18th, 2025. Please find the modernized pages in WDFN that suit you best. Learn more about our modernization plans and timeline and new pages.

USGS 405149072532201 S 5517. 1

Suffolk County, New York
Latitude  40°51'49", Longitude  72°53'22" NAD27
Land-surface elevation 115.0 feet above NGVD29
The depth of the well is 91.0 feet below land surface.
This well is completed in the Northern Atlantic Coastal Plain aquifer system (S100NATLCP) national aquifer.
This well is completed in the Glacial Aquifer, Upper (112GLCLU) local aquifer.

Period of record
Begin Date End Date Levels
1948-04-28 2024-08-14 2515

 
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