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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

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USGS 404135073254101 N 12249. 1

Nassau County, New York
Latitude  40°41'35.6", Longitude  73°25'38.3" NAD83
Land-surface elevation 34 feet above NGVD29
The depth of the well is 29.8 feet below land surface.
The depth of the hole is 29.8 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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1994-04-0719:06 UTCm62610 25.72NGVD291SUSGSSA
1994-04-0719:06 UTCm62611 24.51NAVD881SUSGSSA
1994-04-0719:06 UTCm720198.28  1SUSGSSA
1994-04-2015:15 UTCm62610 25.72NGVD291SUSGSSA
1994-04-2015:15 UTCm62611 24.51NAVD881SUSGSSA
1994-04-2015:15 UTCm720198.28  1SUSGSSA
1994-05-1817:33 UTCm62610 25.26NGVD291SUSGSSA
1994-05-1817:33 UTCm62611 24.05NAVD881SUSGSSA
1994-05-1817:33 UTCm720198.74  1SUSGSSA
1994-06-1714:54 UTCm62610 24.32NGVD291SUSGSSA
1994-06-1714:54 UTCm62611 23.11NAVD881SUSGSSA
1994-06-1714:54 UTCm720199.68  1SUSGSSA
1994-07-2016:24 UTCm62610 22.99NGVD291SUSGSSA
1994-07-2016:24 UTCm62611 21.78NAVD881SUSGSSA
1994-07-2016:24 UTCm7201911.01  1SUSGSSA
1994-08-2416:00 UTCm62610 23.19NGVD291SUSGSSA
1994-08-2416:00 UTCm62611 21.98NAVD881SUSGSSA
1994-08-2416:00 UTCm7201910.81  1SUSGSSA
1994-09-2015:52 UTCm62610 22.60NGVD291SUSGSSA
1994-09-2015:52 UTCm62611 21.39NAVD881SUSGSSA
1994-09-2015:52 UTCm7201911.40  1SUSGSSA
1994-10-2416:17 UTCm62610 22.83NGVD291SUSGSSA
1994-10-2416:17 UTCm62611 21.62NAVD881SUSGSSA
1994-10-2416:17 UTCm7201911.17  1SUSGSSA
1994-12-1317:15 UTCm62610 23.04NGVD291SUSGSSA
1994-12-1317:15 UTCm62611 21.83NAVD881SUSGSSA
1994-12-1317:15 UTCm7201910.96  1SUSGSSA
1995-01-1920:15 UTCm62610 22.31NGVD291SUSGSSA
1995-01-1920:15 UTCm62611 21.10NAVD881SUSGSSA
1995-01-1920:15 UTCm7201911.69  1SUSGSSA
1995-03-1414:45 UTCm62610 23.61NGVD291SUSGSSA
1995-03-1414:45 UTCm62611 22.40NAVD881SUSGSSA
1995-03-1414:45 UTCm7201910.39  1SUSGSSA
1995-05-1816:53 UTCm62610 22.98NGVD291SUSGSSA
1995-05-1816:53 UTCm62611 21.77NAVD881SUSGSSA
1995-05-1816:53 UTCm7201911.02  1SUSGSSA
1995-07-2615:19 UTCm62610 22.11NGVD291SUSGSSA
1995-07-2615:19 UTCm62611 20.90NAVD881SUSGSSA
1995-07-2615:19 UTCm7201911.89  1SUSGSSA
1995-09-1915:26 UTCm62610 21.11NGVD291SUSGSSA
1995-09-1915:26 UTCm62611 19.90NAVD881SUSGSSA
1995-09-1915:26 UTCm7201912.89  1SUSGSSA
1995-12-0815:05 UTCm62610 22.52NGVD291SUSGSSA
1995-12-0815:05 UTCm62611 21.31NAVD881SUSGSSA
1995-12-0815:05 UTCm7201911.48  1SUSGSSA
1996-06-2814:38 UTCm62610 24.40NGVD291SUSGSSA
1996-06-2814:38 UTCm62611 23.19NAVD881SUSGSSA
1996-06-2814:38 UTCm720199.60  1SUSGSSA
1996-09-2718:55 UTCm62610 23.48NGVD291SUSGSSA
1996-09-2718:55 UTCm62611 22.27NAVD881SUSGSSA
1996-09-2718:55 UTCm7201910.52  1SUSGSSA
1997-03-1215:32 UTCm62610 25.13NGVD291SUSGSSA
1997-03-1215:32 UTCm62611 23.92NAVD881SUSGSSA
1997-03-1215:32 UTCm720198.87  1SUSGSSA
1998-03-2516:12 UTCm62610 26.44NGVD291SUSGSSA
1998-03-2516:12 UTCm62611 25.23NAVD881SUSGSSA
1998-03-2516:12 UTCm720197.56  1SUSGSSA
1999-03-3016:55 UTCm62610 25.28NGVD291SUSGSSA
1999-03-3016:55 UTCm62611 24.07NAVD881SUSGSSA
1999-03-3016:55 UTCm720198.72  1SUSGSSA
2000-03-2017:37 UTCm62610 23.79NGVD291SUSGSSA
2000-03-2017:37 UTCm62611 22.58NAVD881SUSGSSA
2000-03-2017:37 UTCm7201910.21  1SUSGSSA
2001-03-1920:43 UTCm62610 24.58NGVD291SUSGSSA
2001-03-1920:43 UTCm62611 23.37NAVD881SUSGSSA
2001-03-1920:43 UTCm720199.42  1SUSGSSA
2002-03-2719:33 UTCm62610 21.13NGVD291SUSGSSA
2002-03-2719:33 UTCm62611 19.92NAVD881SUSGSSA
2002-03-2719:33 UTCm7201912.87  1SUSGSSA
2003-03-1918:40 UTCm62610 23.82NGVD291SUSGSSA
2003-03-1918:40 UTCm62611 22.61NAVD881SUSGSSA
2003-03-1918:40 UTCm7201910.18  1SUSGSSA
2004-03-1615:39 UTCm62610 23.96NGVD291SUSGSSA
2004-03-1615:39 UTCm62611 22.75NAVD881SUSGSSA
2004-03-1615:39 UTCm7201910.04  1SUSGSSA
2005-03-1515:37 UTCm62610 25.00NGVD291SUSGSSA
2005-03-1515:37 UTCm62611 23.79NAVD881SUSGSSA
2005-03-1515:37 UTCm720199.00  1SUSGSSA
2006-03-2315:40 UTCm62610 25.29NGVD291SUSGSSA
2006-03-2315:40 UTCm62611 24.08NAVD881SUSGSSA
2006-03-2315:40 UTCm720198.71  1SUSGSSA
2007-04-0217:25 UTCm62610 25.36NGVD291SUSGSSA
2007-04-0217:25 UTCm62611 24.15NAVD881SUSGSSA
2007-04-0217:25 UTCm720198.64  1SUSGSSA
2008-04-2118:39 UTCm62610 25.46NGVD291SUSGSSA
2008-04-2118:39 UTCm62611 24.25NAVD881SUSGSSA
2008-04-2118:39 UTCm720198.54  1SUSGSSA
2009-04-2817:27 UTCm62610 25.32NGVD291SUSGSSA
2009-04-2817:27 UTCm62611 24.11NAVD881SUSGSSA
2009-04-2817:27 UTCm720198.68  1SUSGSSA
2010-04-2120:00 UTCm62610 27.08NGVD291SUSGSSA
2010-04-2120:00 UTCm62611 25.87NAVD881SUSGSSA
2010-04-2120:00 UTCm720196.92  1SUSGSSA
2011-04-1819:22 UTCm62610 25.07NGVD291SUSGSSA
2011-04-1819:22 UTCm62611 23.86NAVD881SUSGSSA
2011-04-1819:22 UTCm720198.93  1SUSGSSA
2012-04-1815:10 UTCm62610 23.62NGVD291SUSGSSA
2012-04-1815:10 UTCm62611 22.41NAVD881SUSGSSA
2012-04-1815:10 UTCm7201910.38  1SUSGSSA
2013-04-1612:49 UTCm62610 24.75NGVD291SUSGSSA
2013-04-1612:49 UTCm62611 23.54NAVD881SUSGSSA
2013-04-1612:49 UTCm720199.25  1SUSGSSA
2014-04-2421:03 UTCm62610 24.86NGVD291SUSGSSA
2014-04-2421:03 UTCm62611 23.65NAVD881SUSGSSA
2014-04-2421:03 UTCm720199.14  1SUSGSSA
2015-04-1522:52 UTCm62610 25.37NGVD291SUSGSSA
2015-04-1522:52 UTCm62611 24.16NAVD881SUSGSSA
2015-04-1522:52 UTCm720198.63  1SUSGSSA
2016-04-1917:27 UTCm62610 23.69NGVD291SUSGSSA
2016-04-1917:27 UTCm62611 22.48NAVD881SUSGSSA
2016-04-1917:27 UTCm7201910.31  1SUSGSSA
2017-04-1816:52 UTCm62610 24.23NGVD291TUSGSSA
2017-04-1816:52 UTCm62611 23.02NAVD881TUSGSSA
2017-04-1816:52 UTCm720199.77  1TUSGSSA
2018-04-1916:33 UTCm62610 25.47NGVD291VUSGSSA
2018-04-1916:33 UTCm62611 24.26NAVD881VUSGSSA
2018-04-1916:33 UTCm720198.53  1VUSGSSA
2019-04-1618:04 UTCm62610 25.93NGVD291SUSGSSA
2019-04-1618:04 UTCm62611 24.72NAVD881SUSGSSA
2019-04-1618:04 UTCm720198.07  1SUSGSSA
2020-02-2816:03 UTCm62610 24.92NGVD291VUSGSSA
2020-02-2816:03 UTCm62611 23.71NAVD881VUSGSSA
2020-02-2816:03 UTCm720199.08  1VUSGSSA
2020-09-0118:20 UTCm62610 22.91NGVD291VUSGSSA
2020-09-0118:20 UTCm62611 21.70NAVD881VUSGSSA
2020-09-0118:20 UTCm7201911.09  1VUSGSSA
2020-10-2017:30 UTCm62610 23.49NGVD291VUSGSSA
2020-10-2017:30 UTCm62611 22.28NAVD881VUSGSSA
2020-10-2017:30 UTCm7201910.51  1VUSGSSA
2020-12-0415:40 UTCm62610 24.27NGVD291VUSGSSA
2020-12-0415:40 UTCm62611 23.06NAVD881VUSGSSA
2020-12-0415:40 UTCm720199.73  1VUSGSSA
2021-01-0517:08 UTCm62610 25.04NGVD291VUSGSSA
2021-01-0517:08 UTCm62611 23.83NAVD881VUSGSSA
2021-01-0517:08 UTCm720198.96  1VUSGSSA
2021-03-2518:35 UTCm62610 25.21NGVD291VUSGSSA
2021-03-2518:35 UTCm62611 24.00NAVD881VUSGSSA
2021-03-2518:35 UTCm720198.79  1VUSGSSA
2021-04-2618:38 UTCm62610 25.42NGVD291VUSGSSA
2021-04-2618:38 UTCm62611 24.21NAVD881VUSGSSA
2021-04-2618:38 UTCm720198.58  1VUSGSSA
2021-05-2718:39 UTCm62610 24.41NGVD291VUSGSSA
2021-05-2718:39 UTCm62611 23.20NAVD881VUSGSSA
2021-05-2718:39 UTCm720199.59  1VUSGSSA
2021-06-2818:05 UTCm62610 23.95NGVD291VUSGSSA
2021-06-2818:05 UTCm62611 22.74NAVD881VUSGSSA
2021-06-2818:05 UTCm7201910.05  1VUSGSSA
2021-07-1618:38 UTCm62610 24.79NGVD291VUSGSSA
2021-07-1618:38 UTCm62611 23.58NAVD881VUSGSSA
2021-07-1618:38 UTCm720199.21  1VUSGSSA
2021-08-2518:57 UTCm62610 25.02NGVD291VUSGSSA
2021-08-2518:57 UTCm62611 23.81NAVD881VUSGSSA
2021-08-2518:57 UTCm720198.98  1VUSGSSA
2021-09-2817:50 UTCm62610 24.65NGVD291VUSGSSA
2021-09-2817:50 UTCm62611 23.44NAVD881VUSGSSA
2021-09-2817:50 UTCm720199.35  1VUSGSSA
2021-11-0120:19 UTCm62610 24.50NGVD291VUSGSSA
2021-11-0120:19 UTCm62611 23.29NAVD881VUSGSSA
2021-11-0120:19 UTCm720199.50  1VUSGSSA
2021-11-2617:02 UTCm62610 24.10NGVD291VUSGSSA
2021-11-2617:02 UTCm62611 22.89NAVD881VUSGSSA
2021-11-2617:02 UTCm720199.90  1VUSGSSA
2021-12-3017:10 UTCm62610 23.54NGVD291VUSGSSA
2021-12-3017:10 UTCm62611 22.33NAVD881VUSGSSA
2021-12-3017:10 UTCm7201910.46  1VUSGSSA
2022-01-2718:58 UTCm62610 23.90NGVD291VUSGSSA
2022-01-2718:58 UTCm62611 22.69NAVD881VUSGSSA
2022-01-2718:58 UTCm7201910.10  1VUSGSSA
2022-02-2415:47 UTCm62610 24.31NGVD291VUSGSSA
2022-02-2415:47 UTCm62611 23.10NAVD881VUSGSSA
2022-02-2415:47 UTCm720199.69  1VUSGSSA
2022-03-2911:45 UTCm62610 24.52NGVD291VUSGSSA
2022-03-2911:45 UTCm62611 23.31NAVD881VUSGSSA
2022-03-2911:45 UTCm720199.48  1VUSGSSA
2022-04-2615:00 UTCm62610 24.52NGVD291VUSGSSA
2022-04-2615:00 UTCm62611 23.31NAVD881VUSGSSA
2022-04-2615:00 UTCm720199.48  1VUSGSSA
2022-05-2421:07 UTCm62610 24.39NGVD291VUSGSSA
2022-05-2421:07 UTCm62611 23.18NAVD881VUSGSSA
2022-05-2421:07 UTCm720199.61  1VUSGSSA
2022-06-3014:00 UTCm62610 23.86NGVD291VUSGSSA
2022-06-3014:00 UTCm62611 22.65NAVD881VUSGSSA
2022-06-3014:00 UTCm7201910.14  1VUSGSSA
2022-07-2713:34 UTCm62610 22.94NGVD291VUSGSSA
2022-07-2713:34 UTCm62611 21.73NAVD881VUSGSSA
2022-07-2713:34 UTCm7201911.06  1VUSGSSA
2022-08-2914:30 UTCm62610 22.08NGVD291VUSGSSA
2022-08-2914:30 UTCm62611 20.87NAVD881VUSGSSA
2022-08-2914:30 UTCm7201911.92  1VUSGSSA
2022-09-2619:36 UTCm62610 21.63NGVD291VUSGSSA
2022-09-2619:36 UTCm62611 20.42NAVD881VUSGSSA
2022-09-2619:36 UTCm7201912.37  1VUSGSSA
2022-10-2719:07 UTCm62610 22.37NGVD291VUSGSSA
2022-10-2719:07 UTCm62611 21.16NAVD881VUSGSSA
2022-10-2719:07 UTCm7201911.63  1VUSGSSA
2022-11-2922:17 UTCm62610 22.35NGVD291VUSGSSA
2022-11-2922:17 UTCm62611 21.14NAVD881VUSGSSA
2022-11-2922:17 UTCm7201911.65  1VUSGSSA
2023-01-0213:42 UTCm62610 22.91NGVD291VUSGSSA
2023-01-0213:42 UTCm62611 21.70NAVD881VUSGSSA
2023-01-0213:42 UTCm7201911.09  1VUSGSSA
2023-01-2313:16 UTCm62610 23.03NGVD291VUSGSSA
2023-01-2313:16 UTCm62611 21.82NAVD881VUSGSSA
2023-01-2313:16 UTCm7201910.97  1VUSGSSA
2023-02-1415:42 UTCm62610 23.34NGVD291VUSGSSA
2023-02-1415:42 UTCm62611 22.13NAVD881VUSGSSA
2023-02-1415:42 UTCm7201910.66  1VUSGSSA
2023-03-2315:05 UTCm62610 23.91NGVD291VUSGSSA
2023-03-2315:05 UTCm62611 22.70NAVD881VUSGSSA
2023-03-2315:05 UTCm7201910.09  1VUSGSSA
2023-05-1018:28 UTCm62610 23.83NGVD291VUSGSSA
2023-05-1018:28 UTCm62611 22.62NAVD881VUSGSSA
2023-05-1018:28 UTCm7201910.17  1VUSGSSA
2023-05-1913:08 UTCm62610 23.44NGVD291VUSGSSA
2023-05-1913:08 UTCm62611 22.23NAVD881VUSGSSA
2023-05-1913:08 UTCm7201910.56  1VUSGSSA
2023-06-2215:17 UTCm62610 22.89NGVD291VUSGSSA
2023-06-2215:17 UTCm62611 21.68NAVD881VUSGSSA
2023-06-2215:17 UTCm7201911.11  1VUSGSSA
2023-07-2013:25 UTCm62610 22.35NGVD291VUSGSSA
2023-07-2013:25 UTCm62611 21.14NAVD881VUSGSSA
2023-07-2013:25 UTCm7201911.65  1VUSGSSA
2023-08-2413:42 UTCm62610 21.96NGVD291VUSGSSA
2023-08-2413:42 UTCm62611 20.75NAVD881VUSGSSA
2023-08-2413:42 UTCm7201912.04  1VUSGSSA
2023-09-1513:45 UTCm62610 21.91NGVD291VUSGSSA
2023-09-1513:45 UTCm62611 20.70NAVD881VUSGSSA
2023-09-1513:45 UTCm7201912.09  1VUSGSSA
2023-10-2417:39 UTCm62610 22.93NGVD291VUSGSSA
2023-10-2417:39 UTCm62611 21.72NAVD881VUSGSSA
2023-10-2417:39 UTCm7201911.07  1VUSGSSA
2023-11-1714:29 UTCm62610 22.68NGVD291VUSGSSA
2023-11-1714:29 UTCm62611 21.47NAVD881VUSGSSA
2023-11-1714:29 UTCm7201911.32  1VUSGSSA
2023-12-1919:11 UTCm62610 24.39NGVD291VUSGSSA
2023-12-1919:11 UTCm62611 23.18NAVD881VUSGSSA
2023-12-1919:11 UTCm720199.61  1VUSGSSA
2024-01-2417:17 UTCm62610 25.57NGVD291VUSGSSA
2024-01-2417:17 UTCm62611 24.36NAVD881VUSGSSA
2024-01-2417:17 UTCm720198.43  1VUSGSSA
2024-02-2619:45 UTCm62610 25.03NGVD291VUSGSSA
2024-02-2619:45 UTCm62611 23.82NAVD881VUSGSSA
2024-02-2619:45 UTCm720198.97  1VUSGSSA
2024-03-2116:22 UTCm62610 26.17NGVD291VUSGSSA
2024-03-2116:22 UTCm62611 24.96NAVD881VUSGSSA
2024-03-2116:22 UTCm720197.83  1VUSGSSA
2024-04-1815:47 UTCm62610 26.48NGVD291VUSGSSA
2024-04-1815:47 UTCm62611 25.27NAVD881VUSGSSA
2024-04-1815:47 UTCm720197.52  1VUSGSSA
2024-05-1418:58 UTCm62610 25.47NGVD291VUSGSSA
2024-05-1418:58 UTCm62611 24.26NAVD881VUSGSSA
2024-05-1418:58 UTCm720198.53  1VUSGSSA
2024-06-1814:42 UTCm62610 24.38NGVD291VUSGSSA
2024-06-1814:42 UTCm62611 23.17NAVD881VUSGSSA
2024-06-1814:42 UTCm720199.62  1VUSGSSA
2024-07-1618:22 UTCm62610 23.61NGVD291VUSGSSA
2024-07-1618:22 UTCm62611 22.40NAVD881VUSGSSA
2024-07-1618:22 UTCm7201910.39  1VUSGSSA
2024-08-2213:58 UTCm62610 24.18NGVD291VUSGSSA
2024-08-2213:58 UTCm62611 22.97NAVD881VUSGSSA
2024-08-2213:58 UTCm720199.82  1VUSGSSA
2024-09-2518:46 UTCm62610 23.11NGVD291VUSGSSA
2024-09-2518:46 UTCm62611 21.90NAVD881VUSGSSA
2024-09-2518:46 UTCm7201910.89  1VUSGSSA
2024-10-1716:46 UTCm62610 22.62NGVD291VUSGSSA
2024-10-1716:46 UTCm62611 21.41NAVD881VUSGSSA
2024-10-1716:46 UTCm7201911.38  1VUSGSSA
2024-11-2716:51 UTCm62610 22.44NGVD291VUSGSSP
2024-11-2716:51 UTCm62611 21.23NAVD881VUSGSSP
2024-11-2716:51 UTCm7201911.56  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
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.
Water-level approval statusPProvisional data subject to revision.