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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

USGS 403505073401301 N 11002. 1

Nassau County, New York
Latitude  40°35'05.7", Longitude  73°40'10.9" NAD83
Land-surface elevation 11.0 feet above NGVD29
The depth of the well is 1,255 feet below land surface.
The depth of the hole is 1,475 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 Lloyd Aquifer (211LLYD) local aquifer.

Period of record
Begin Date End Date Levels
1987-11-23 2024-10-09 228

 
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