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Groundwater levels for the Nation

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Agency code = usgs
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  • 404609073392901
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USGS 404609073392901 N 6119. 1

Nassau County, New York
Latitude  40°46'09", Longitude  73°39'29" NAD27
Land-surface elevation 123.0 feet above NGVD29
The depth of the well is 181 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 Magothy Aquifer (211MAGT) local aquifer.
Output formats
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Reselect period
Date Time
?
 
Water-level
date-time
accuracy
?
 
Parameter
code
Water
level,
feet
below
land
surface
Water
level,
feet
above
specific
vertical
datum
Referenced
vertical
datum
?
 
Status
?
 
Method of
measurement
?
 
Measuring
agency
?
 
Source of
measurement
?
 
Water-level
approval
status
1957-05-14 D62610 68.73NGVD291OUSGSSA
1957-05-14 D62611 67.62NAVD881OUSGSSA
1957-05-14 D7201954.27  1OUSGSSA
1959-12-17 D62610 31.89NGVD291OUSGSSA
1959-12-17 D62611 30.78NAVD881OUSGSSA
1959-12-17 D7201991.11  1OUSGSSA
1960-12-01 D62610 33.29NGVD291OUSGSSA
1960-12-01 D62611 32.18NAVD881OUSGSSA
1960-12-01 D7201989.71  1OUSGSSA

Explanation
SectionCodeDescription
Water-level date-time accuracyDDate is accurate to the Day
Parameter code62610Groundwater level above NGVD 1929, feet
Parameter code62611Groundwater level above NAVD 1988, feet
Parameter code72019Depth to water level, feet below land surface
Referenced vertical datumNAVD88North American Vertical Datum of 1988
Referenced vertical datumNGVD29National Geodetic Vertical Datum of 1929
Status1Static
Method of measurementOObserved.
Measuring agencyUSGSU.S. Geological Survey
Source of measurementSMeasured by personnel of reporting agency.
Water-level approval statusAApproved for publication -- Processing and review completed.