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Groundwater levels for the Nation

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USGS 404843073432701 N 9896. 1

Nassau County, New York
Latitude  40°48'40.6", Longitude  73°43'24.2" NAD83
Land-surface elevation 106.0 feet above NGVD29
The depth of the well is 90 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
1991-11-0414:48 UTCm62610 74.77NGVD291OUSGSSA
1991-11-0414:48 UTCm62611 73.68NAVD881OUSGSSA
1991-11-0414:48 UTCm7201931.23  1OUSGSSA
1992-03-1614:53 UTCm62610 74.99NGVD294OUSGSSA
1992-03-1614:53 UTCm62611 73.90NAVD884OUSGSSA
1992-03-1614:53 UTCm7201931.01  4OUSGSSA
1992-05-1918:32 UTCm62610 74.73NGVD294OUSGSSA
1992-05-1918:32 UTCm62611 73.64NAVD884OUSGSSA
1992-05-1918:32 UTCm7201931.27  4OUSGSSA
1992-08-2515:49 UTCm62610 74.36NGVD291OUSGSSA
1992-08-2515:49 UTCm62611 73.27NAVD881OUSGSSA
1992-08-2515:49 UTCm7201931.64  1OUSGSSA
1992-12-0817:19 UTCm62610 74.05NGVD291OUSGSSA
1992-12-0817:19 UTCm62611 72.96NAVD881OUSGSSA
1992-12-0817:19 UTCm7201931.95  1OUSGSSA
1993-03-2518:23 UTCm62610 75.75NGVD291OUSGSSA
1993-03-2518:23 UTCm62611 74.66NAVD881OUSGSSA
1993-03-2518:23 UTCm7201930.25  1OUSGSSA
1993-06-1818:57 UTCm62610 76.37NGVD291OUSGSSA
1993-06-1818:57 UTCm62611 75.28NAVD881OUSGSSA
1993-06-1818:57 UTCm7201929.63  1OUSGSSA
1993-09-3015:28 UTCm62610 74.22NGVD291OUSGSSA
1993-09-3015:28 UTCm62611 73.13NAVD881OUSGSSA
1993-09-3015:28 UTCm7201931.78  1OUSGSSA
1993-12-2818:24 UTCm62610 74.41NGVD291OUSGSSA
1993-12-2818:24 UTCm62611 73.32NAVD881OUSGSSA
1993-12-2818:24 UTCm7201931.59  1OUSGSSA
1994-03-3017:15 UTCm62610 75.74NGVD291OUSGSSA
1994-03-3017:15 UTCm62611 74.65NAVD881OUSGSSA
1994-03-3017:15 UTCm7201930.26  1OUSGSSA
1994-06-0916:42 UTCm62610 76.50NGVD291OUSGSSA
1994-06-0916:42 UTCm62611 75.41NAVD881OUSGSSA
1994-06-0916:42 UTCm7201929.50  1OUSGSSA
1994-09-2016:14 UTCm62610 75.25NGVD291OUSGSSA
1994-09-2016:14 UTCm62611 74.16NAVD881OUSGSSA
1994-09-2016:14 UTCm7201930.75  1OUSGSSA
1994-12-1617:53 UTCm62610 74.36NGVD291OUSGSSA
1994-12-1617:53 UTCm62611 73.27NAVD881OUSGSSA
1994-12-1617:53 UTCm7201931.64  1OUSGSSA
1995-03-1521:04 UTCm62610 74.88NGVD291OUSGSSA
1995-03-1521:04 UTCm62611 73.79NAVD881OUSGSSA
1995-03-1521:04 UTCm7201931.12  1OUSGSSA
1995-06-1419:25 UTCm62610 74.71NGVD291OUSGSSA
1995-06-1419:25 UTCm62611 73.62NAVD881OUSGSSA
1995-06-1419:25 UTCm7201931.29  1OUSGSSA
1995-08-2414:22 UTCm62610 74.43NGVD291OUSGSSA
1995-08-2414:22 UTCm62611 73.34NAVD881OUSGSSA
1995-08-2414:22 UTCm7201931.57  1OUSGSSA
1995-12-0420:23 UTCm62610 74.22NGVD291OUSGSSA
1995-12-0420:23 UTCm62611 73.13NAVD881OUSGSSA
1995-12-0420:23 UTCm7201931.78  1OUSGSSA
1996-03-2217:19 UTCm62610 75.77NGVD291OUSGSSA
1996-03-2217:19 UTCm62611 74.68NAVD881OUSGSSA
1996-03-2217:19 UTCm7201930.23  1OUSGSSA
1996-05-1618:54 UTCm62610 76.78NGVD291OUSGSSA
1996-05-1618:54 UTCm62611 75.69NAVD881OUSGSSA
1996-05-1618:54 UTCm7201929.22  1OUSGSSA
1996-09-1019:32 UTCm62610 75.52NGVD291OUSGSSA
1996-09-1019:32 UTCm62611 74.43NAVD881OUSGSSA
1996-09-1019:32 UTCm7201930.48  1OUSGSSA
1997-03-1018:37 UTCm62610 76.93NGVD291OUSGSSA
1997-03-1018:37 UTCm62611 75.84NAVD881OUSGSSA
1997-03-1018:37 UTCm7201929.07  1OUSGSSA
1998-03-2515:58 UTCm62610 76.70NGVD291SUSGSSA
1998-03-2515:58 UTCm62611 75.61NAVD881SUSGSSA
1998-03-2515:58 UTCm7201929.30  1SUSGSSA
2005-04-0118:46 UTCm62610 77.90NGVD291SUSGSSA
2005-04-0118:46 UTCm62611 76.81NAVD881SUSGSSA
2005-04-0118:46 UTCm7201928.10  1SUSGSSA
2006-03-2315:21 UTCm62610 78.55NGVD291SUSGSSA
2006-03-2315:21 UTCm62611 77.46NAVD881SUSGSSA
2006-03-2315:21 UTCm7201927.45  1SUSGSSA
2007-03-2816:37 UTCm62610 77.55NGVD291SUSGSSA
2007-03-2816:37 UTCm62611 76.46NAVD881SUSGSSA
2007-03-2816:37 UTCm7201928.45  1SUSGSSA
2008-05-0514:44 UTCm62610 78.01NGVD291S  A
2008-05-0514:44 UTCm62611 76.92NAVD881S  A
2008-05-0514:44 UTCm7201927.99  1S  A
2009-04-2417:01 UTCm62610 77.04NGVD291SUSGSSA
2009-04-2417:01 UTCm62611 75.95NAVD881SUSGSSA
2009-04-2417:01 UTCm7201928.96  1SUSGSSA
2010-04-1917:40 UTCm62610 81.29NGVD291SUSGSSA
2010-04-1917:40 UTCm62611 80.20NAVD881SUSGSSA
2010-04-1917:40 UTCm7201924.71  1SUSGSSA
2013-04-1822:29 UTCm62610 77.20NGVD291SUSGSSA
2013-04-1822:29 UTCm62611 76.11NAVD881SUSGSSA
2013-04-1822:29 UTCm7201928.80  1SUSGSSA
2013-07-2916:11 UTCm62610 77.49NGVD291VUSGSSA
2013-07-2916:11 UTCm62611 76.40NAVD881VUSGSSA
2013-07-2916:11 UTCm7201928.51  1VUSGSSA
2014-04-1718:48 UTCm62610 76.72NGVD291SUSGSSA
2014-04-1718:48 UTCm62611 75.63NAVD881SUSGSSA
2014-04-1718:48 UTCm7201929.28  1SUSGSSA
2015-04-2515:31 UTCm62610 78.56NGVD291SUSGSSA
2015-04-2515:31 UTCm62611 77.47NAVD881SUSGSSA
2015-04-2515:31 UTCm7201927.44  1SUSGSSA
2016-04-2220:15 UTCm62610 77.22NGVD291TUSGSSA
2016-04-2220:15 UTCm62611 76.13NAVD881TUSGSSA
2016-04-2220:15 UTCm7201928.78  1TUSGSSA
2019-04-1816:38 UTCm62610 80.02NGVD291VUSGSSA
2019-04-1816:38 UTCm62611 78.93NAVD881VUSGSSA
2019-04-1816:38 UTCm7201925.98  1VUSGSSA
2022-09-2017:20 UTCm62610 79.38NGVD291VUSGSSP
2022-09-2017:20 UTCm62611 78.29NAVD881VUSGSSP
2022-09-2017:20 UTCm7201926.62  1VUSGSSP

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.
Water-level approval statusPProvisional data subject to revision.