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Groundwater levels for the Nation

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USGS 404347073260702 N 9662. 1

Nassau County, New York
Latitude  40°43'47.9", Longitude  73°26'05.5" NAD83
Land-surface elevation 68.8 feet above NGVD29
The depth of the well is 57 feet below land surface.
The depth of the hole is 57 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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Water
level,
feet
below
land
surface
Water
level,
feet
above
specific
vertical
datum
Referenced
vertical
datum
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1981-03-1219:14 UTCm62610 52.77NGVD291OUSGSSA
1981-03-1219:14 UTCm62611 51.56NAVD881OUSGSSA
1981-03-1219:14 UTCm7201916.03  1OUSGSSA
1981-05-2916:07 UTCm62610 52.98NGVD291OUSGSSA
1981-05-2916:07 UTCm62611 51.77NAVD881OUSGSSA
1981-05-2916:07 UTCm7201915.82  1OUSGSSA
1981-09-2915:34 UTCm62610 53.64NGVD291OUSGSSA
1981-09-2915:34 UTCm62611 52.43NAVD881OUSGSSA
1981-09-2915:34 UTCm7201915.16  1OUSGSSA
1982-01-0516:59 UTCm62610 52.32NGVD291OUSGSSA
1982-01-0516:59 UTCm62611 51.11NAVD881OUSGSSA
1982-01-0516:59 UTCm7201916.48  1OUSGSSA
1982-03-1915:27 UTCm62610 53.71NGVD291OUSGSSA
1982-03-1915:27 UTCm62611 52.50NAVD881OUSGSSA
1982-03-1915:27 UTCm7201915.09  1OUSGSSA
1982-07-0117:31 UTCm62610 54.49NGVD291OUSGSSA
1982-07-0117:31 UTCm62611 53.28NAVD881OUSGSSA
1982-07-0117:31 UTCm7201914.31  1OUSGSSA
1982-08-3116:09 UTCm62610 52.93NGVD291OUSGSSA
1982-08-3116:09 UTCm62611 51.72NAVD881OUSGSSA
1982-08-3116:09 UTCm7201915.87  1OUSGSSA
1982-12-0217:35 UTCm62610 52.74NGVD291OUSGSSA
1982-12-0217:35 UTCm62611 51.53NAVD881OUSGSSA
1982-12-0217:35 UTCm7201916.06  1OUSGSSA
1983-04-0715:17 UTCm62610 53.34NGVD291OUSGSSA
1983-04-0715:17 UTCm62611 52.13NAVD881OUSGSSA
1983-04-0715:17 UTCm7201915.46  1OUSGSSA
1983-06-2816:33 UTCm62610 53.78NGVD291OUSGSSA
1983-06-2816:33 UTCm62611 52.57NAVD881OUSGSSA
1983-06-2816:33 UTCm7201915.02  1OUSGSSA
1983-08-03 D62610 55.12NGVD291OUSGSSA
1983-08-03 D62611 53.91NAVD881OUSGSSA
1983-08-03 D7201913.68  1OUSGSSA
1984-04-2716:17 UTCm62610 57.52NGVD291OUSGSSA
1984-04-2716:17 UTCm62611 56.31NAVD881OUSGSSA
1984-04-2716:17 UTCm7201911.28  1OUSGSSA
1985-08-2915:50 UTCm62610 52.12NGVD291OUSGSSA
1985-08-2915:50 UTCm62611 50.91NAVD881OUSGSSA
1985-08-2915:50 UTCm7201916.68  1OUSGSSA
1988-07-0613:45 UTCm62610 49.76NGVD291OUSGSSA
1988-07-0613:45 UTCm62611 48.55NAVD881OUSGSSA
1988-07-0613:45 UTCm7201919.04  1OUSGSSA
1988-08-0416:08 UTCm62610 49.46NGVD291OUSGSSA
1988-08-0416:08 UTCm62611 48.25NAVD881OUSGSSA
1988-08-0416:08 UTCm7201919.34  1OUSGSSA
1990-03-2616:33 UTCm62610 53.81NGVD291OUSGSSA
1990-03-2616:33 UTCm62611 52.60NAVD881OUSGSSA
1990-03-2616:33 UTCm7201914.99  1OUSGSSA
1991-03-2014:20 UTCm62610 55.65NGVD291OUSGSSA
1991-03-2014:20 UTCm62611 54.44NAVD881OUSGSSA
1991-03-2014:20 UTCm7201913.15  1OUSGSSA
1992-03-1715:10 UTCm62610 51.69NGVD291OUSGSSA
1992-03-1715:10 UTCm62611 50.48NAVD881OUSGSSA
1992-03-1715:10 UTCm7201917.11  1OUSGSSA
1992-04-2413:25 UTCm62610 51.53NGVD291OUSGSSA
1992-04-2413:25 UTCm62611 50.32NAVD881OUSGSSA
1992-04-2413:25 UTCm7201917.27  1OUSGSSA
1992-05-1420:44 UTCm62610 51.14NGVD291OUSGSSA
1992-05-1420:44 UTCm62611 49.93NAVD881OUSGSSA
1992-05-1420:44 UTCm7201917.66  1OUSGSSA
1992-06-1615:11 UTCm62610 51.44NGVD291OUSGSSA
1992-06-1615:11 UTCm62611 50.23NAVD881OUSGSSA
1992-06-1615:11 UTCm7201917.36  1OUSGSSA
1992-07-1417:06 UTCm62610 50.83NGVD291OUSGSSA
1992-07-1417:06 UTCm62611 49.62NAVD881OUSGSSA
1992-07-1417:06 UTCm7201917.97  1OUSGSSA
1992-08-2016:54 UTCm62610 51.52NGVD291OUSGSSA
1992-08-2016:54 UTCm62611 50.31NAVD881OUSGSSA
1992-08-2016:54 UTCm7201917.28  1OUSGSSA
1992-09-3014:03 UTCm62610 51.15NGVD291OUSGSSA
1992-09-3014:03 UTCm62611 49.94NAVD881OUSGSSA
1992-09-3014:03 UTCm7201917.65  1OUSGSSA
1992-10-2016:22 UTCm62610 50.77NGVD291OUSGSSA
1992-10-2016:22 UTCm62611 49.56NAVD881OUSGSSA
1992-10-2016:22 UTCm7201918.03  1OUSGSSA
1992-11-1818:15 UTCm62610 50.48NGVD291OUSGSSA
1992-11-1818:15 UTCm62611 49.27NAVD881OUSGSSA
1992-11-1818:15 UTCm7201918.32  1OUSGSSA
1993-01-0418:23 UTCm62610 52.02NGVD291OUSGSSA
1993-01-0418:23 UTCm62611 50.81NAVD881OUSGSSA
1993-01-0418:23 UTCm7201916.78  1OUSGSSA
1993-01-2114:48 UTCm62610 52.02NGVD291OUSGSSA
1993-01-2114:48 UTCm62611 50.81NAVD881OUSGSSA
1993-01-2114:48 UTCm7201916.78  1OUSGSSA
1993-02-1818:11 UTCm62610 51.91NGVD291OUSGSSA
1993-02-1818:11 UTCm62611 50.70NAVD881OUSGSSA
1993-02-1818:11 UTCm7201916.89  1OUSGSSA
1993-03-2314:45 UTCm62610 52.88NGVD291OUSGSSA
1993-03-2314:45 UTCm62611 51.67NAVD881OUSGSSA
1993-03-2314:45 UTCm7201915.92  1OUSGSSA
1993-04-2218:56 UTCm62610 54.14NGVD291OUSGSSA
1993-04-2218:56 UTCm62611 52.93NAVD881OUSGSSA
1993-04-2218:56 UTCm7201914.66  1OUSGSSA
1993-05-1715:11 UTCm62610 53.49NGVD291OUSGSSA
1993-05-1715:11 UTCm62611 52.28NAVD881OUSGSSA
1993-05-1715:11 UTCm7201915.31  1OUSGSSA
1993-06-1616:44 UTCm62610 52.78NGVD291OUSGSSA
1993-06-1616:44 UTCm62611 51.57NAVD881OUSGSSA
1993-06-1616:44 UTCm7201916.02  1OUSGSSA
1993-07-1618:20 UTCm62610 51.94NGVD291OUSGSSA
1993-07-1618:20 UTCm62611 50.73NAVD881OUSGSSA
1993-07-1618:20 UTCm7201916.86  1OUSGSSA
1993-08-1816:12 UTCm62610 50.77NGVD291OUSGSSA
1993-08-1816:12 UTCm62611 49.56NAVD881OUSGSSA
1993-08-1816:12 UTCm7201918.03  1OUSGSSA
1993-09-2318:17 UTCm62610 50.00NGVD291OUSGSSA
1993-09-2318:17 UTCm62611 48.79NAVD881OUSGSSA
1993-09-2318:17 UTCm7201918.80  1OUSGSSA
1993-10-2516:14 UTCm62610 49.78NGVD291OUSGSSA
1993-10-2516:14 UTCm62611 48.57NAVD881OUSGSSA
1993-10-2516:14 UTCm7201919.02  1OUSGSSA
1993-11-2216:47 UTCm62610 49.56NGVD291OUSGSSA
1993-11-2216:47 UTCm62611 48.35NAVD881OUSGSSA
1993-11-2216:47 UTCm7201919.24  1OUSGSSA
1993-12-2017:28 UTCm62610 49.88NGVD291OUSGSSA
1993-12-2017:28 UTCm62611 48.67NAVD881OUSGSSA
1993-12-2017:28 UTCm7201918.92  1OUSGSSA
1994-02-1817:50 UTCm62610 49.38NGVD291OUSGSSA
1994-02-1817:50 UTCm62611 48.17NAVD881OUSGSSA
1994-02-1817:50 UTCm7201919.42  1OUSGSSA
1994-04-0114:45 UTCm62610 51.73NGVD291OUSGSSA
1994-04-0114:45 UTCm62611 50.52NAVD881OUSGSSA
1994-04-0114:45 UTCm7201917.07  1OUSGSSA
1994-04-2015:32 UTCm62610 52.16NGVD291OUSGSSA
1994-04-2015:32 UTCm62611 50.95NAVD881OUSGSSA
1994-04-2015:32 UTCm7201916.64  1OUSGSSA
1994-05-1817:50 UTCm62610 51.87NGVD291OUSGSSA
1994-05-1817:50 UTCm62611 50.66NAVD881OUSGSSA
1994-05-1817:50 UTCm7201916.93  1OUSGSSA
1994-06-1715:13 UTCm62610 51.27NGVD291OUSGSSA
1994-06-1715:13 UTCm62611 50.06NAVD881OUSGSSA
1994-06-1715:13 UTCm7201917.53  1OUSGSSA
1994-07-2016:44 UTCm62610 50.10NGVD291OUSGSSA
1994-07-2016:44 UTCm62611 48.89NAVD881OUSGSSA
1994-07-2016:44 UTCm7201918.70  1OUSGSSA
1994-08-2416:22 UTCm62610 49.76NGVD291OUSGSSA
1994-08-2416:22 UTCm62611 48.55NAVD881OUSGSSA
1994-08-2416:22 UTCm7201919.04  1OUSGSSA
1994-09-2016:22 UTCm62610 49.14NGVD291OUSGSSA
1994-09-2016:22 UTCm62611 47.93NAVD881OUSGSSA
1994-09-2016:22 UTCm7201919.66  1OUSGSSA
1994-10-2016:31 UTCm62610 49.13NGVD291OUSGSSA
1994-10-2016:31 UTCm62611 47.92NAVD881OUSGSSA
1994-10-2016:31 UTCm7201919.67  1OUSGSSA
1994-12-1317:28 UTCm62610 48.77NGVD291OUSGSSA
1994-12-1317:28 UTCm62611 47.56NAVD881OUSGSSA
1994-12-1317:28 UTCm7201920.03  1OUSGSSA
1995-01-1920:33 UTCm62610 48.61NGVD291OUSGSSA
1995-01-1920:33 UTCm62611 47.40NAVD881OUSGSSA
1995-01-1920:33 UTCm7201920.19  1OUSGSSA
1995-03-1414:25 UTCm62610 48.62NGVD291OUSGSSA
1995-03-1414:25 UTCm62611 47.41NAVD881OUSGSSA
1995-03-1414:25 UTCm7201920.18  1OUSGSSA
1995-05-1910:57 UTCm62610 47.95NGVD291OUSGSSA
1995-05-1910:57 UTCm62611 46.74NAVD881OUSGSSA
1995-05-1910:57 UTCm7201920.85  1OUSGSSA
1995-07-2615:37 UTCm62610 47.44NGVD291OUSGSSA
1995-07-2615:37 UTCm62611 46.23NAVD881OUSGSSA
1995-07-2615:37 UTCm7201921.36  1OUSGSSA
1995-09-1915:43 UTCm62610 46.33NGVD291OUSGSSA
1995-09-1915:43 UTCm62611 45.12NAVD881OUSGSSA
1995-09-1915:43 UTCm7201922.47  1OUSGSSA
1995-12-0815:21 UTCm62610 46.61NGVD291OUSGSSA
1995-12-0815:21 UTCm62611 45.40NAVD881OUSGSSA
1995-12-0815:21 UTCm7201922.19  1OUSGSSA
1996-01-2218:00 UTCm62610 46.62NGVD291OUSGSSA
1996-01-2218:00 UTCm62611 45.41NAVD881OUSGSSA
1996-01-2218:00 UTCm7201922.18  1OUSGSSA
1996-03-1415:00 UTCm62610 47.94NGVD291OUSGSSA
1996-03-1415:00 UTCm62611 46.73NAVD881OUSGSSA
1996-03-1415:00 UTCm7201920.86  1OUSGSSA
1996-06-2814:52 UTCm62610 49.45NGVD291OUSGSSA
1996-06-2814:52 UTCm62611 48.24NAVD881OUSGSSA
1996-06-2814:52 UTCm7201919.35  1OUSGSSA
1996-09-2716:20 UTCm62610 48.81NGVD291OUSGSSA
1996-09-2716:20 UTCm62611 47.60NAVD881OUSGSSA
1996-09-2716:20 UTCm7201919.99  1OUSGSSA
1997-03-1214:57 UTCm62610 51.00NGVD291OUSGSSA
1997-03-1214:57 UTCm62611 49.79NAVD881OUSGSSA
1997-03-1214:57 UTCm7201917.80  1OUSGSSA
1998-03-2515:38 UTCm62610 52.59NGVD291SUSGSSA
1998-03-2515:38 UTCm62611 51.38NAVD881SUSGSSA
1998-03-2515:38 UTCm7201916.21  1SUSGSSA
1999-03-3017:25 UTCm62610 52.45NGVD291SUSGSSA
1999-03-3017:25 UTCm62611 51.24NAVD881SUSGSSA
1999-03-3017:25 UTCm7201916.35  1SUSGSSA
2000-03-2018:13 UTCm62610 48.92NGVD291SUSGSSA
2000-03-2018:13 UTCm62611 47.71NAVD881SUSGSSA
2000-03-2018:13 UTCm7201919.88  1SUSGSSA
2001-03-1920:13 UTCm62610 50.12NGVD291SUSGSSA
2001-03-1920:13 UTCm62611 48.91NAVD881SUSGSSA
2001-03-1920:13 UTCm7201918.68  1SUSGSSA
2002-03-2214:40 UTCm62610 45.18NGVD291SUSGSSA
2002-03-2214:40 UTCm62611 43.97NAVD881SUSGSSA
2002-03-2214:40 UTCm7201923.62  1SUSGSSA
2003-03-2719:20 UTCm62610 47.66NGVD291SUSGSSA
2003-03-2719:20 UTCm62611 46.45NAVD881SUSGSSA
2003-03-2719:20 UTCm7201921.14  1SUSGSSA
2005-03-1516:01 UTCm62610 50.58NGVD291SUSGSSA
2005-03-1516:01 UTCm62611 49.37NAVD881SUSGSSA
2005-03-1516:01 UTCm7201918.22  1SUSGSSA
2006-03-2315:10 UTCm62610 52.93NGVD291SUSGSSA
2006-03-2315:10 UTCm62611 51.72NAVD881SUSGSSA
2006-03-2315:10 UTCm7201915.87  1SUSGSSA
2007-04-0217:49 UTCm62610 52.76NGVD291SUSGSSA
2007-04-0217:49 UTCm62611 51.55NAVD881SUSGSSA
2007-04-0217:49 UTCm7201916.04  1SUSGSSA
2008-04-2119:01 UTCm62610 53.39NGVD291SUSGSSA
2008-04-2119:01 UTCm62611 52.18NAVD881SUSGSSA
2008-04-2119:01 UTCm7201915.41  1SUSGSSA
2009-04-2817:47 UTCm62610 52.76NGVD291SUSGSSA
2009-04-2817:47 UTCm62611 51.55NAVD881SUSGSSA
2009-04-2817:47 UTCm7201916.04  1SUSGSSA
2010-04-2120:15 UTCm62610 56.17NGVD291SUSGSSA
2010-04-2120:15 UTCm62611 54.96NAVD881SUSGSSA
2010-04-2120:15 UTCm7201912.63  1SUSGSSA
2011-04-1819:58 UTCm62610 52.05NGVD291SUSGSSA
2011-04-1819:58 UTCm62611 50.84NAVD881SUSGSSA
2011-04-1819:58 UTCm7201916.75  1SUSGSSA
2012-04-1816:03 UTCm62610 51.07NGVD291SUSGSSA
2012-04-1816:03 UTCm62611 49.86NAVD881SUSGSSA
2012-04-1816:03 UTCm7201917.73  1SUSGSSA
2013-04-1612:20 UTCm62610 51.61NGVD291SUSGSSA
2013-04-1612:20 UTCm62611 50.40NAVD881SUSGSSA
2013-04-1612:20 UTCm7201917.19  1SUSGSSA
2014-04-2421:41 UTCm62610 50.95NGVD291SUSGSSA
2014-04-2421:41 UTCm62611 49.74NAVD881SUSGSSA
2014-04-2421:41 UTCm7201917.85  1SUSGSSA
2015-04-1523:16 UTCm62610 52.49NGVD291SUSGSSA
2015-04-1523:16 UTCm62611 51.28NAVD881SUSGSSA
2015-04-1523:16 UTCm7201916.31  1SUSGSSA
2016-04-1917:54 UTCm62610 49.23NGVD291SUSGSSA
2016-04-1917:54 UTCm62611 48.02NAVD881SUSGSSA
2016-04-1917:54 UTCm7201919.57  1SUSGSSA
2017-04-1817:16 UTCm62610 48.66NGVD291TUSGSSA
2017-04-1817:16 UTCm62611 47.45NAVD881TUSGSSA
2017-04-1817:16 UTCm7201920.14  1TUSGSSA
2018-04-1917:33 UTCm62610 50.57NGVD291VUSGSSA
2018-04-1917:33 UTCm62611 49.36NAVD881VUSGSSA
2018-04-1917:33 UTCm7201918.23  1VUSGSSA
2019-04-1618:28 UTCm62610 53.82NGVD291SUSGSSA
2019-04-1618:28 UTCm62611 52.61NAVD881SUSGSSA
2019-04-1618:28 UTCm7201914.98  1SUSGSSA
2020-10-2018:15 UTCm62610 50.73NGVD291VUSGSSA
2020-10-2018:15 UTCm62611 49.52NAVD881VUSGSSA
2020-10-2018:15 UTCm7201918.07  1VUSGSSA
2021-04-2619:01 UTCm62610 52.53NGVD291VUSGSSA
2021-04-2619:01 UTCm62611 51.32NAVD881VUSGSSA
2021-04-2619:01 UTCm7201916.27  1VUSGSSA
2022-05-2421:38 UTCm62610 51.98NGVD291VUSGSSA
2022-05-2421:38 UTCm62611 50.77NAVD881VUSGSSA
2022-05-2421:38 UTCm7201916.82  1VUSGSSA
2023-05-1018:50 UTCm62610 49.95NGVD291VUSGSSA
2023-05-1018:50 UTCm62611 48.74NAVD881VUSGSSA
2023-05-1018:50 UTCm7201918.85  1VUSGSSA
2024-05-1421:18 UTCm62610 54.44NGVD291VUSGSSA
2024-05-1421:18 UTCm62611 53.23NAVD881VUSGSSA
2024-05-1421:18 UTCm7201914.36  1VUSGSSA

Explanation
SectionCodeDescription
Water-level date-time accuracyDDate is accurate to the Day
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.