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Groundwater levels for the Nation

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USGS 404636073270902 N 11455. 1

Nassau County, New York
Latitude  40°46'36.2", Longitude  73°27'08.5" NAD83
Land-surface elevation 194.5 feet above NGVD29
The depth of the well is 986 feet below land surface.
The depth of the hole is 986 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 Lloyd Aquifer (211LLYD) 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
1990-04-1021:10 UTCm62610 33.44NGVD291OUSGSSA
1990-04-1021:10 UTCm62611 32.31NAVD881OUSGSSA
1990-04-1021:10 UTCm72019161.06  1OUSGSSA
1993-04-1615:39 UTCm62610 33.21NGVD291OUSGSSA
1993-04-1615:39 UTCm62611 32.08NAVD881OUSGSSA
1993-04-1615:39 UTCm72019161.29  1OUSGSSA
1994-04-0717:02 UTCm62610 32.54NGVD291OUSGSSA
1994-04-0717:02 UTCm62611 31.41NAVD881OUSGSSA
1994-04-0717:02 UTCm72019161.96  1OUSGSSA
1995-03-1418:45 UTCm62610 32.05NGVD291OUSGSSA
1995-03-1418:45 UTCm62611 30.92NAVD881OUSGSSA
1995-03-1418:45 UTCm72019162.45  1OUSGSSA
1996-05-1518:13 UTCm62610 30.26NGVD291OUSGSSA
1996-05-1518:13 UTCm62611 29.13NAVD881OUSGSSA
1996-05-1518:13 UTCm72019164.24  1OUSGSSA
1997-03-1015:15 UTCm62610 31.95NGVD291OUSGSSA
1997-03-1015:15 UTCm62611 30.82NAVD881OUSGSSA
1997-03-1015:15 UTCm72019162.55  1OUSGSSA
1998-03-2315:10 UTCm62610 33.04NGVD291SUSGSSA
1998-03-2315:10 UTCm62611 31.91NAVD881SUSGSSA
1998-03-2315:10 UTCm72019161.46  1SUSGSSA
2006-03-2213:05 UTCm62610 34.96NGVD291SUSGSSA
2006-03-2213:05 UTCm62611 33.83NAVD881SUSGSSA
2006-03-2213:05 UTCm72019159.54  1SUSGSSA
2007-03-2613:13 UTCm62610 35.37NGVD291SUSGSSA
2007-03-2613:13 UTCm62611 34.24NAVD881SUSGSSA
2007-03-2613:13 UTCm72019159.13  1SUSGSSA
2008-04-3015:34 UTCm62610 35.17NGVD291SUSGSSA
2008-04-3015:34 UTCm62611 34.04NAVD881SUSGSSA
2008-04-3015:34 UTCm72019159.33  1SUSGSSA
2009-04-2314:09 UTCm62610 35.05NGVD291SUSGSSA
2009-04-2314:09 UTCm62611 33.92NAVD881SUSGSSA
2009-04-2314:09 UTCm72019159.45  1SUSGSSA
2010-04-2113:36 UTCm62610 35.34NGVD291SUSGSSA
2010-04-2113:36 UTCm62611 34.21NAVD881SUSGSSA
2010-04-2113:36 UTCm72019159.16  1SUSGSSA
2011-04-2214:52 UTCm62610 34.78NGVD291SUSGSSA
2011-04-2214:52 UTCm62611 33.65NAVD881SUSGSSA
2011-04-2214:52 UTCm72019159.72  1SUSGSSA
2012-04-1814:38 UTCm62610 35.20NGVD291SUSGSSA
2012-04-1814:38 UTCm62611 34.07NAVD881SUSGSSA
2012-04-1814:38 UTCm72019159.30  1SUSGSSA
2013-04-1814:35 UTCm62610 34.59NGVD291SUSGSSA
2013-04-1814:35 UTCm62611 33.46NAVD881SUSGSSA
2013-04-1814:35 UTCm72019159.91  1SUSGSSA
2014-04-1713:25 UTCm62610 33.16NGVD291SUSGSSA
2014-04-1713:25 UTCm62611 32.03NAVD881SUSGSSA
2014-04-1713:25 UTCm72019161.34  1SUSGSSA
2015-04-2214:11 UTCm62610 34.28NGVD291SUSGSSA
2015-04-2214:11 UTCm62611 33.15NAVD881SUSGSSA
2015-04-2214:11 UTCm72019160.22  1SUSGSSA
2016-04-2015:00 UTCm62610 32.67NGVD291TUSGSSA
2016-04-2015:00 UTCm62611 31.54NAVD881TUSGSSA
2016-04-2015:00 UTCm72019161.83  1TUSGSSA
2017-04-1913:56 UTCm62610 31.71NGVD291TUSGSSA
2017-04-1913:56 UTCm62611 30.58NAVD881TUSGSSA
2017-04-1913:56 UTCm72019162.79  1TUSGSSA
2020-10-2214:25 UTCm62610 31.33NGVD291VUSGSSA
2020-10-2214:25 UTCm62611 30.20NAVD881VUSGSSA
2020-10-2214:25 UTCm72019163.17  1VUSGSSA
2021-04-1913:35 UTCm62610 33.50NGVD291VUSGSSA
2021-04-1913:35 UTCm62611 32.37NAVD881VUSGSSA
2021-04-1913:35 UTCm72019161.00  1VUSGSSA
2022-05-1715:54 UTCm62610 34.06NGVD291VUSGSSA
2022-05-1715:54 UTCm62611 32.93NAVD881VUSGSSA
2022-05-1715:54 UTCm72019160.44  1VUSGSSA
2023-04-2715:01 UTCm62610 32.73NGVD291VUSGSSA
2023-04-2715:01 UTCm62611 31.60NAVD881VUSGSSA
2023-04-2715:01 UTCm72019161.77  1VUSGSSA
2024-05-0816:52 UTCm62610 33.69NGVD291VUSGSSA
2024-05-0816:52 UTCm62611 32.56NAVD881VUSGSSA
2024-05-0816:52 UTCm72019160.81  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
Method of measurementOObserved.
Method of measurementSSteel-tape measurement.
Method of measurementTElectric-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.