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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

USGS 404901073443001 N 30. 1

Nassau County, New York
Latitude  40°49'01", Longitude  73°44'30" NAD27
Land-surface elevation 18.9 feet above NGVD29
The depth of the well is 206 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 Port Washington Aquifer (112PGQF) local aquifer.

Period of record
Begin Date End Date Levels
1946-05-28 1991-04-03 19

 
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