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Groundwater levels for the Nation

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  • 404047073390401
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USGS 404047073390401 N 9377. 1

Nassau County, New York
Latitude  40°40'47", Longitude  73°39'04" NAD27
Land-surface elevation 30.0 feet above NGVD29
The depth of the well is 12 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.
Output formats
Table of data
Tab-separated data
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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
1978-08-24 D62610 20.75NGVD291OUSGSSA
1978-08-24 D62611 19.62NAVD881OUSGSSA
1978-08-24 D720199.25  1OUSGSSA
1978-10-24 D62610 19.99NGVD291OUSGSSA
1978-10-24 D62611 18.86NAVD881OUSGSSA
1978-10-24 D7201910.01  1OUSGSSA
1978-11-22 D62610 19.92NGVD291OUSGSSA
1978-11-22 D62611 18.79NAVD881OUSGSSA
1978-11-22 D7201910.08  1OUSGSSA
1978-12-28 D62610 20.45NGVD291OUSGSSA
1978-12-28 D62611 19.32NAVD881OUSGSSA
1978-12-28 D720199.55  1OUSGSSA
1979-03-21 D62610 22.54NGVD291OUSGSSA
1979-03-21 D62611 21.41NAVD881OUSGSSA
1979-03-21 D720197.46  1OUSGSSA
1979-04-19 D62610 22.08NGVD291OUSGSSA
1979-04-19 D62611 20.95NAVD881OUSGSSA
1979-04-19 D720197.92  1OUSGSSA
1979-05-29 D62610 21.88NGVD291OUSGSSA
1979-05-29 D62611 20.75NAVD881OUSGSSA
1979-05-29 D720198.12  1OUSGSSA
1983-10-2320:31 UTCm62610 18.84NGVD291OUSGSSA
1983-10-2320:31 UTCm62611 17.71NAVD881OUSGSSA
1983-10-2320:31 UTCm7201911.16  1OUSGSSA
1984-10-1621:10 UTCm62610 20.33NGVD291OUSGSSA
1984-10-1621:10 UTCm62611 19.20NAVD881OUSGSSA
1984-10-1621:10 UTCm720199.67  1OUSGSSA
1985-05-1600:32 UTCm62610 19.45NGVD291OUSGSSA
1985-05-1600:32 UTCm62611 18.32NAVD881OUSGSSA
1985-05-1600:32 UTCm7201910.55  1OUSGSSA

Explanation
SectionCodeDescription
Water-level date-time accuracyDDate is accurate to the Day
Water-level date-time accuracymDate is accurate to the Minute
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.