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Groundwater levels for the Nation

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USGS 404817073413501 N 9902. 1

Nassau County, New York
Latitude  40°48'15.9", Longitude  73°41'32.8" NAD83
Land-surface elevation 133.0 feet above NGVD29
The depth of the well is 100 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
1994-04-0120:42 UTCm62610 74.58NGVD291OUSGSSA
1994-04-0120:42 UTCm62611 73.49NAVD881OUSGSSA
1994-04-0120:42 UTCm7201958.42  1OUSGSSA
1994-06-0718:25 UTCm62610 75.61NGVD291OUSGSSA
1994-06-0718:25 UTCm62611 74.52NAVD881OUSGSSA
1994-06-0718:25 UTCm7201957.39  1OUSGSSA
1994-09-2216:48 UTCm62610 75.54NGVD291OUSGSSA
1994-09-2216:48 UTCm62611 74.45NAVD881OUSGSSA
1994-09-2216:48 UTCm7201957.46  1OUSGSSA
1994-12-1517:56 UTCm62610 74.95NGVD291OUSGSSA
1994-12-1517:56 UTCm62611 73.86NAVD881OUSGSSA
1994-12-1517:56 UTCm7201958.05  1OUSGSSA
1995-03-1614:45 UTCm62610 74.53NGVD291OUSGSSA
1995-03-1614:45 UTCm62611 73.44NAVD881OUSGSSA
1995-03-1614:45 UTCm7201958.47  1OUSGSSA
1995-06-1315:35 UTCm62610 74.38NGVD291OUSGSSA
1995-06-1315:35 UTCm62611 73.29NAVD881OUSGSSA
1995-06-1315:35 UTCm7201958.62  1OUSGSSA
1995-08-2317:28 UTCm62610 74.14NGVD291OUSGSSA
1995-08-2317:28 UTCm62611 73.05NAVD881OUSGSSA
1995-08-2317:28 UTCm7201958.86  1OUSGSSA
1995-12-0518:18 UTCm62610 73.69NGVD291OUSGSSA
1995-12-0518:18 UTCm62611 72.60NAVD881OUSGSSA
1995-12-0518:18 UTCm7201959.31  1OUSGSSA
1996-03-1915:17 UTCm62610 74.00NGVD291OUSGSSA
1996-03-1915:17 UTCm62611 72.91NAVD881OUSGSSA
1996-03-1915:17 UTCm7201959.00  1OUSGSSA
1996-05-1519:33 UTCm62610 74.76NGVD291OUSGSSA
1996-05-1519:33 UTCm62611 73.67NAVD881OUSGSSA
1996-05-1519:33 UTCm7201958.24  1OUSGSSA
1996-09-1113:36 UTCm62610 75.33NGVD291OUSGSSA
1996-09-1113:36 UTCm62611 74.24NAVD881OUSGSSA
1996-09-1113:36 UTCm7201957.67  1OUSGSSA
1996-12-1115:20 UTCm62610 75.01NGVD291OUSGSSA
1996-12-1115:20 UTCm62611 73.92NAVD881OUSGSSA
1996-12-1115:20 UTCm7201957.99  1OUSGSSA
1997-03-1014:54 UTCm62610 75.94NGVD291OUSGSSA
1997-03-1014:54 UTCm62611 74.85NAVD881OUSGSSA
1997-03-1014:54 UTCm7201957.06  1OUSGSSA
2002-03-2717:30 UTCm62610 75.01NGVD291SUSGSSA
2002-03-2717:30 UTCm62611 73.92NAVD881SUSGSSA
2002-03-2717:30 UTCm7201957.99  1SUSGSSA
2003-03-2814:23 UTCm62610 75.99NGVD291SUSGSSA
2003-03-2814:23 UTCm62611 74.90NAVD881SUSGSSA
2003-03-2814:23 UTCm7201957.01  1SUSGSSA
2004-03-2219:35 UTCm62610 77.43NGVD291SUSGSSA
2004-03-2219:35 UTCm62611 76.34NAVD881SUSGSSA
2004-03-2219:35 UTCm7201955.57  1SUSGSSA
2005-03-2217:57 UTCm62610 77.39NGVD291SUSGSSA
2005-03-2217:57 UTCm62611 76.30NAVD881SUSGSSA
2005-03-2217:57 UTCm7201955.61  1SUSGSSA
2006-03-2919:45 UTCm62610 78.68NGVD294SUSGSSA
2006-03-2919:45 UTCm62611 77.59NAVD884SUSGSSA
2006-03-2919:45 UTCm7201954.32  4SUSGSSA
2008-04-2215:52 UTCm62610 77.59NGVD291S  A
2008-04-2215:52 UTCm62611 76.50NAVD881S  A
2008-04-2215:52 UTCm7201955.41  1S  A
2008-10-2115:09 UTCm62610 77.14NGVD291S  A
2008-10-2115:09 UTCm62611 76.05NAVD881S  A
2008-10-2115:09 UTCm7201955.86  1S  A
2008-12-0116:37 UTCm62610 76.93NGVD291S  A
2008-12-0116:37 UTCm62611 75.84NAVD881S  A
2008-12-0116:37 UTCm7201956.07  1S  A
2010-04-2014:22 UTCm62610 78.39NGVD291SUSGSSA
2010-04-2014:22 UTCm62611 77.30NAVD881SUSGSSA
2010-04-2014:22 UTCm7201954.61  1SUSGSSA
2011-04-1516:07 UTCm62610 77.31NGVD291SUSGSSA
2011-04-1516:07 UTCm62611 76.22NAVD881SUSGSSA
2011-04-1516:07 UTCm7201955.69  1SUSGSSA
2012-04-1617:13 UTCm62610 77.64NGVD291SUSGSSA
2012-04-1617:13 UTCm62611 76.55NAVD881SUSGSSA
2012-04-1617:13 UTCm7201955.36  1SUSGSSA
2013-04-1715:06 UTCm62610 76.63NGVD291SUSGSSA
2013-04-1715:06 UTCm62611 75.54NAVD881SUSGSSA
2013-04-1715:06 UTCm7201956.37  1SUSGSSA
2013-07-2417:33 UTCm62610 76.96NGVD291TUSGSSA
2013-07-2417:33 UTCm62611 75.87NAVD881TUSGSSA
2013-07-2417:33 UTCm7201956.04  1TUSGSSA
2013-07-2916:51 UTCm62610 76.96NGVD291TUSGSSA
2013-07-2916:51 UTCm62611 75.87NAVD881TUSGSSA
2013-07-2916:51 UTCm7201956.04  1TUSGSSA
2014-04-1416:23 UTCm62610 75.66NGVD291SUSGSSA
2014-04-1416:23 UTCm62611 74.57NAVD881SUSGSSA
2014-04-1416:23 UTCm7201957.34  1SUSGSSA
2015-04-1618:37 UTCm62610 77.17NGVD291SUSGSSA
2015-04-1618:37 UTCm62611 76.08NAVD881SUSGSSA
2015-04-1618:37 UTCm7201955.83  1SUSGSSA
2016-04-1817:11 UTCm62610 76.45NGVD291S  A
2016-04-1817:11 UTCm62611 75.36NAVD881S  A
2016-04-1817:11 UTCm7201956.55  1S  A
2017-04-1716:54 UTCm62610 75.48NGVD291VUSGSSA
2017-04-1716:54 UTCm62611 74.39NAVD881VUSGSSA
2017-04-1716:54 UTCm7201957.52  1VUSGSSA
2018-04-1817:30 UTCm62610 76.23NGVD291TUSGSSA
2018-04-1817:30 UTCm62611 75.14NAVD881TUSGSSA
2018-04-1817:30 UTCm7201956.77  1TUSGSSA
2019-04-2216:45 UTCm62610 78.48NGVD291VUSGSSA
2019-04-2216:45 UTCm62611 77.39NAVD881VUSGSSA
2019-04-2216:45 UTCm7201954.52  1VUSGSSA
2020-10-2616:40 UTCm62610 76.85NGVD291VUSGSSA
2020-10-2616:40 UTCm62611 75.76NAVD881VUSGSSA
2020-10-2616:40 UTCm7201956.15  1VUSGSSA
2021-04-2815:45 UTCm62610 77.35NGVD291VUSGSSA
2021-04-2815:45 UTCm62611 76.26NAVD881VUSGSSA
2021-04-2815:45 UTCm7201955.65  1VUSGSSA
2022-05-1617:53 UTCm62610 77.34NGVD291VUSGSSA
2022-05-1617:53 UTCm62611 76.25NAVD881VUSGSSA
2022-05-1617:53 UTCm7201955.66  1VUSGSSA
2023-05-1115:08 UTCm62610 76.49NGVD291VUSGSSA
2023-05-1115:08 UTCm62611 75.40NAVD881VUSGSSA
2023-05-1115:08 UTCm7201956.51  1VUSGSSA
2024-05-1020:32 UTCm62610 79.29NGVD291VUSGSSA
2024-05-1020:32 UTCm62611 78.20NAVD881VUSGSSA
2024-05-1020:32 UTCm7201953.71  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
Status4Groundwater level affected by tide
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.