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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

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  • 403845073381802
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USGS 403845073381802 N 1440. 3

Nassau County, New York
Hydrologic Unit Code 02030202
Latitude  40°38'45", Longitude  73°38'18" NAD27
Land-surface elevation 19.0 feet above NGVD29
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Graph of groundwater level data at USGS 403845073381802 N 1440. 3
Breaks in the plot represent a gap of at least one year between field measurements.
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