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Groundwater levels for the Nation

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USGS 404934073445401 N 9477. 1

Nassau County, New York
Latitude  40°49'34", Longitude  73°44'54" NAD27
Land-surface elevation 72.0 feet above NGVD29
The depth of the well is 137 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.
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Table of 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
1991-11-0417:30 UTCm62610 14.68NGVD291OUSGSSA
1991-11-0417:30 UTCm62611 13.60NAVD881OUSGSSA
1991-11-0417:30 UTCm7201957.32  1OUSGSSA
1992-03-1613:40 UTCm62610 11.08NGVD294OUSGSSA
1992-03-1613:40 UTCm62611 10.00NAVD884OUSGSSA
1992-03-1613:40 UTCm7201960.92  4OUSGSSA
1992-05-1917:40 UTCm62610 10.87NGVD294OUSGSSA
1992-05-1917:40 UTCm62611 9.79NAVD884OUSGSSA
1992-05-1917:40 UTCm7201961.13  4OUSGSSA
1992-08-2515:10 UTCm62610 10.72NGVD291OUSGSSA
1992-08-2515:10 UTCm62611 9.64NAVD881OUSGSSA
1992-08-2515:10 UTCm7201961.28  1OUSGSSA
1992-12-0816:33 UTCm62610 10.47NGVD291OUSGSSA
1992-12-0816:33 UTCm62611 9.39NAVD881OUSGSSA
1992-12-0816:33 UTCm7201961.53  1OUSGSSA
1993-03-2517:32 UTCm62610 11.29NGVD291OUSGSSA
1993-03-2517:32 UTCm62611 10.21NAVD881OUSGSSA
1993-03-2517:32 UTCm7201960.71  1OUSGSSA
1993-06-1818:31 UTCm62610 11.95NGVD291OUSGSSA
1993-06-1818:31 UTCm62611 10.87NAVD881OUSGSSA
1993-06-1818:31 UTCm7201960.05  1OUSGSSA
1993-09-3016:00 UTCm62610 11.44NGVD291OUSGSSA
1993-09-3016:00 UTCm62611 10.36NAVD881OUSGSSA
1993-09-3016:00 UTCm7201960.56  1OUSGSSA
1994-03-3019:50 UTCm62610 11.68NGVD291OUSGSSA
1994-03-3019:50 UTCm62611 10.60NAVD881OUSGSSA
1994-03-3019:50 UTCm7201960.32  1OUSGSSA
1994-06-0816:14 UTCm62610 12.02NGVD291OUSGSSA
1994-06-0816:14 UTCm62611 10.94NAVD881OUSGSSA
1994-06-0816:14 UTCm7201959.98  1OUSGSSA
1994-09-2018:05 UTCm62610 12.08NGVD291OUSGSSA
1994-09-2018:05 UTCm62611 11.00NAVD881OUSGSSA
1994-09-2018:05 UTCm7201959.92  1OUSGSSA
1994-12-1615:07 UTCm62610 11.31NGVD291OUSGSSA
1994-12-1615:07 UTCm62611 10.23NAVD881OUSGSSA
1994-12-1615:07 UTCm7201960.69  1OUSGSSA
1995-03-1520:20 UTCm62610 11.28NGVD291OUSGSSA
1995-03-1520:20 UTCm62611 10.20NAVD881OUSGSSA
1995-03-1520:20 UTCm7201960.72  1OUSGSSA
1995-06-1418:54 UTCm62610 11.04NGVD291OUSGSSA
1995-06-1418:54 UTCm62611 9.96NAVD881OUSGSSA
1995-06-1418:54 UTCm7201960.96  1OUSGSSA
1995-08-2413:34 UTCm62610 10.99NGVD291OUSGSSA
1995-08-2413:34 UTCm62611 9.91NAVD881OUSGSSA
1995-08-2413:34 UTCm7201961.01  1OUSGSSA
1995-12-0419:37 UTCm62610 10.97NGVD291OUSGSSA
1995-12-0419:37 UTCm62611 9.89NAVD881OUSGSSA
1995-12-0419:37 UTCm7201961.03  1OUSGSSA
1996-03-2216:13 UTCm62610 11.09NGVD291OUSGSSA
1996-03-2216:13 UTCm62611 10.01NAVD881OUSGSSA
1996-03-2216:13 UTCm7201960.91  1OUSGSSA
1996-05-1615:19 UTCm62610 11.58NGVD291OUSGSSA
1996-05-1615:19 UTCm62611 10.50NAVD881OUSGSSA
1996-05-1615:19 UTCm7201960.42  1OUSGSSA
1996-09-1016:14 UTCm62610 11.55NGVD291OUSGSSA
1996-09-1016:14 UTCm62611 10.47NAVD881OUSGSSA
1996-09-1016:14 UTCm7201960.45  1OUSGSSA
1998-03-2513:44 UTCm62610 11.83NGVD291SUSGSSA
1998-03-2513:44 UTCm62611 10.75NAVD881SUSGSSA
1998-03-2513:44 UTCm7201960.17  1SUSGSSA
2013-07-2916:55 UTCm62610 12.60NGVD291VUSGSSA
2013-07-2916:55 UTCm62611 11.52NAVD881VUSGSSA
2013-07-2916:55 UTCm7201959.40  1VUSGSSA

Explanation
SectionCodeDescription
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
Status4GWTideAffected
Method of measurementOObserved.
Method of measurementSSteel-tape measurement.
Method of measurementVCalibrated electric-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.