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Groundwater levels for the Nation

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Agency code = usgs
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  • 404027073320301
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USGS 404027073320301 N 9415. 1

Nassau County, New York
Latitude  40°40'27", Longitude  73°32'03" NAD27
Land-surface elevation 22.0 feet above NGVD29
The depth of the well is 9 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
1978-08-25 D62610 15.29NGVD291OUSGSSA
1978-08-25 D62611 14.12NAVD881OUSGSSA
1978-08-25 D720196.71  1OUSGSSA
1978-10-23 D62610 15.60NGVD291OUSGSSA
1978-10-23 D62611 14.43NAVD881OUSGSSA
1978-10-23 D720196.40  1OUSGSSA
1978-11-20 D62610 14.92NGVD291SUSGSSA
1978-11-20 D62611 13.75NAVD881SUSGSSA
1978-11-20 D720197.08  1SUSGSSA
1978-12-27 D62610 16.36NGVD291SUSGSSA
1978-12-27 D62611 15.19NAVD881SUSGSSA
1978-12-27 D720195.64  1SUSGSSA
1979-03-0518:20 UTCm62610 17.32NGVD291OUSGSSA
1979-03-0518:20 UTCm62611 16.15NAVD881OUSGSSA
1979-03-0518:20 UTCm720194.68  1OUSGSSA
1979-03-2016:55 UTCm62610 17.43NGVD291SUSGSSA
1979-03-2016:55 UTCm62611 16.26NAVD881SUSGSSA
1979-03-2016:55 UTCm720194.57  1SUSGSSA
1979-04-1816:37 UTCm62610 16.77NGVD291SUSGSSA
1979-04-1816:37 UTCm62611 15.60NAVD881SUSGSSA
1979-04-1816:37 UTCm720195.23  1SUSGSSA
1979-05-2221:07 UTCm62610 16.54NGVD291SUSGSSA
1979-05-2221:07 UTCm62611 15.37NAVD881SUSGSSA
1979-05-2221:07 UTCm720195.46  1SUSGSSA
1984-10-1614:47 UTCm62610 15.08NGVD291OUSGSSA
1984-10-1614:47 UTCm62611 13.91NAVD881OUSGSSA
1984-10-1614:47 UTCm720196.92  1OUSGSSA
1985-05-1514:42 UTCm62610 15.31NGVD291OUSGSSA
1985-05-1514:42 UTCm62611 14.14NAVD881OUSGSSA
1985-05-1514:42 UTCm720196.69  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.
Method of measurementSSteel-tape measurement.
Measuring agencyUSGSU.S. Geological Survey
Source of measurementSMeasured by personnel of reporting agency.
Water-level approval statusAApproved for publication -- Processing and review completed.