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Groundwater levels for the Nation

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USGS 404901073443005 N 9909. 1

Nassau County, New York
Latitude  40°49'01", Longitude  73°44'30" NAD27
Land-surface elevation 17.9 feet above NGVD29
The depth of the well is 58 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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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
1990-03-2816:34 UTCm62610 9.83NGVD294OUSGSSA
1990-03-2816:34 UTCm62611 8.75NAVD884OUSGSSA
1990-03-2816:34 UTCm720198.07  4OUSGSSA
1991-03-1917:25 UTCm62610 10.02NGVD294OUSGSSA
1991-03-1917:25 UTCm62611 8.94NAVD884OUSGSSA
1991-03-1917:25 UTCm720197.88  4OUSGSSA
1991-11-0414:31 UTCm62610 9.40NGVD291OUSGSSA
1991-11-0414:31 UTCm62611 8.32NAVD881OUSGSSA
1991-11-0414:31 UTCm720198.50  1OUSGSSA
1992-03-1614:00 UTCm62610 9.37NGVD294OUSGSSA
1992-03-1614:00 UTCm62611 8.29NAVD884OUSGSSA
1992-03-1614:00 UTCm720198.53  4OUSGSSA
1992-05-1918:02 UTCm62610 9.36NGVD294OUSGSSA
1992-05-1918:02 UTCm62611 8.28NAVD884OUSGSSA
1992-05-1918:02 UTCm720198.54  4OUSGSSA
1992-08-2514:32 UTCm62610 9.25NGVD291OUSGSSA
1992-08-2514:32 UTCm62611 8.17NAVD881OUSGSSA
1992-08-2514:32 UTCm720198.65  1OUSGSSA
1992-12-0814:59 UTCm62610 9.20NGVD294OUSGSSA
1992-12-0814:59 UTCm62611 8.12NAVD884OUSGSSA
1992-12-0814:59 UTCm720198.70  4OUSGSSA
1993-03-2517:45 UTCm62610 10.11NGVD291OUSGSSA
1993-03-2517:45 UTCm62611 9.03NAVD881OUSGSSA
1993-03-2517:45 UTCm720197.79  1OUSGSSA
1993-06-1815:33 UTCm62610 9.63NGVD291OUSGSSA
1993-06-1815:33 UTCm62611 8.55NAVD881OUSGSSA
1993-06-1815:33 UTCm720198.27  1OUSGSSA
1993-09-3017:01 UTCm62610 9.31NGVD291OUSGSSA
1993-09-3017:01 UTCm62611 8.23NAVD881OUSGSSA
1993-09-3017:01 UTCm720198.59  1OUSGSSA
1993-12-2816:42 UTCm62610 9.43NGVD291OUSGSSA
1993-12-2816:42 UTCm62611 8.35NAVD881OUSGSSA
1993-12-2816:42 UTCm720198.47  1OUSGSSA
1994-03-3020:42 UTCm62610 10.11NGVD291OUSGSSA
1994-03-3020:42 UTCm62611 9.03NAVD881OUSGSSA
1994-03-3020:42 UTCm720197.79  1OUSGSSA
1994-06-0819:12 UTCm62610 9.70NGVD291OUSGSSA
1994-06-0819:12 UTCm62611 8.62NAVD881OUSGSSA
1994-06-0819:12 UTCm720198.20  1OUSGSSA
1994-09-2015:40 UTCm62610 9.56NGVD291OUSGSSA
1994-09-2015:40 UTCm62611 8.48NAVD881OUSGSSA
1994-09-2015:40 UTCm720198.34  1OUSGSSA
1994-12-1614:46 UTCm62610 9.37NGVD291OUSGSSA
1994-12-1614:46 UTCm62611 8.29NAVD881OUSGSSA
1994-12-1614:46 UTCm720198.53  1OUSGSSA
1995-03-1520:00 UTCm62610 9.50NGVD291OUSGSSA
1995-03-1520:00 UTCm62611 8.42NAVD881OUSGSSA
1995-03-1520:00 UTCm720198.40  1OUSGSSA
1995-06-1416:16 UTCm62610 9.30NGVD291OUSGSSA
1995-06-1416:16 UTCm62611 8.22NAVD881OUSGSSA
1995-06-1416:16 UTCm720198.60  1OUSGSSA
1995-08-2414:44 UTCm62610 8.95NGVD291OUSGSSA
1995-08-2414:44 UTCm62611 7.87NAVD881OUSGSSA
1995-08-2414:44 UTCm720198.95  1OUSGSSA
1995-12-0419:55 UTCm62610 9.31NGVD291OUSGSSA
1995-12-0419:55 UTCm62611 8.23NAVD881OUSGSSA
1995-12-0419:55 UTCm720198.59  1OUSGSSA
1996-03-2216:44 UTCm62610 9.75NGVD291OUSGSSA
1996-03-2216:44 UTCm62611 8.67NAVD881OUSGSSA
1996-03-2216:44 UTCm720198.15  1OUSGSSA
1996-05-1618:15 UTCm62610 9.98NGVD291OUSGSSA
1996-05-1618:15 UTCm62611 8.90NAVD881OUSGSSA
1996-05-1618:15 UTCm720197.92  1OUSGSSA
1996-09-1018:56 UTCm62610 9.38NGVD291OUSGSSA
1996-09-1018:56 UTCm62611 8.30NAVD881OUSGSSA
1996-09-1018:56 UTCm720198.52  1OUSGSSA
1997-03-1018:11 UTCm62610 10.01NGVD291OUSGSSA
1997-03-1018:11 UTCm62611 8.93NAVD881OUSGSSA
1997-03-1018:11 UTCm720197.89  1OUSGSSA
2005-03-2217:10 UTCm62610 10.12NGVD291SUSGSSA
2005-03-2217:10 UTCm62611 9.04NAVD881SUSGSSA
2005-03-2217:10 UTCm720197.78  1SUSGSSA
2006-03-2920:50 UTCm62610 10.37NGVD294SUSGSSA
2006-03-2920:50 UTCm62611 9.29NAVD884SUSGSSA
2006-03-2920:50 UTCm720197.53  4SUSGSSA
2007-03-2716:18 UTCm62610 10.37NGVD291SUSGSSA
2007-03-2716:18 UTCm62611 9.29NAVD881SUSGSSA
2007-03-2716:18 UTCm720197.53  1SUSGSSA
2008-04-2115:50 UTCm62610 10.20NGVD291S  A
2008-04-2115:50 UTCm62611 9.12NAVD881S  A
2008-04-2115:50 UTCm720197.70  1S  A
2009-04-2215:36 UTCm62610 10.15NGVD291S  A
2009-04-2215:36 UTCm62611 9.07NAVD881S  A
2009-04-2215:36 UTCm720197.75  1S  A
2013-04-1714:03 UTCm62610 10.15NGVD291SUSGSSA
2013-04-1714:03 UTCm62611 9.07NAVD881SUSGSSA
2013-04-1714:03 UTCm720197.75  1SUSGSSA
2013-07-2916:47 UTCm62610 9.94NGVD291VUSGSSA
2013-07-2916:47 UTCm62611 8.86NAVD881VUSGSSA
2013-07-2916:47 UTCm720197.96  1VUSGSSA
2014-04-1415:18 UTCm62610 10.12NGVD291SUSGSSA
2014-04-1415:18 UTCm62611 9.04NAVD881SUSGSSA
2014-04-1415:18 UTCm720197.78  1SUSGSSA
2015-04-1616:10 UTCm62610 10.37NGVD291SUSGSSA
2015-04-1616:10 UTCm62611 9.29NAVD881SUSGSSA
2015-04-1616:10 UTCm720197.53  1SUSGSSA
2016-04-1816:11 UTCm62610 10.10NGVD291S  A
2016-04-1816:11 UTCm62611 9.02NAVD881S  A
2016-04-1816:11 UTCm720197.80  1S  A
2017-04-1716:12 UTCm62610 10.34NGVD291VUSGSSA
2017-04-1716:12 UTCm62611 9.26NAVD881VUSGSSA
2017-04-1716:12 UTCm720197.56  1VUSGSSA
2018-04-1815:00 UTCm62610 10.54NGVD291TUSGSSA
2018-04-1815:00 UTCm62611 9.46NAVD881TUSGSSA
2018-04-1815:00 UTCm720197.36  1TUSGSSA

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 measurementTElectric-tape measurement.
Method of measurementVCalibrated electric-tape measurement.
Measuring agencyNot determined
Measuring agencyUSGSU.S. Geological Survey
Source of measurementNot determined
Source of measurementSMeasured by personnel of reporting agency.
Water-level approval statusAApproved for publication -- Processing and review completed.