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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

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USGS 404853073454301 N 12076. 1

Nassau County, New York
Latitude  40°48'53.9", Longitude  73°45'41.6" NAD83
Land-surface elevation 65.0 feet above NGVD29
The depth of the well is 320 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.
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1992-04-0115:25 UTCm62610 5.53NGVD294OUSGSSA
1992-04-0115:25 UTCm62611 4.45NAVD884OUSGSSA
1992-04-0115:25 UTCm7201959.47  4OUSGSSA
1992-05-1919:18 UTCm62610 3.97NGVD294OUSGSSA
1992-05-1919:18 UTCm62611 2.89NAVD884OUSGSSA
1992-05-1919:18 UTCm7201961.03  4OUSGSSA
1992-08-2513:38 UTCm62610 -3.11NGVD294OUSGSSA
1992-08-2513:38 UTCm62611 -4.19NAVD884OUSGSSA
1992-08-2513:38 UTCm7201968.11  4OUSGSSA
1992-12-0815:40 UTCm62610 6.15NGVD294OUSGSSA
1992-12-0815:40 UTCm62611 5.07NAVD884OUSGSSA
1992-12-0815:40 UTCm7201958.85  4OUSGSSA
1993-03-2518:55 UTCm62610 6.36NGVD294OUSGSSA
1993-03-2518:55 UTCm62611 5.28NAVD884OUSGSSA
1993-03-2518:55 UTCm7201958.64  4OUSGSSA
1993-05-0212:25 UTCm62610 3.84NGVD294OUSGSSA
1993-05-0212:25 UTCm62611 2.76NAVD884OUSGSSA
1993-05-0212:25 UTCm7201961.16  4OUSGSSA
1993-06-1816:17 UTCm62610 -2.00NGVD294OUSGSSA
1993-06-1816:17 UTCm62611 -3.08NAVD884OUSGSSA
1993-06-1816:17 UTCm7201967.00  4OUSGSSA
1993-09-3017:58 UTCm62610 3.06NGVD294OUSGSSA
1993-09-3017:58 UTCm62611 1.98NAVD884OUSGSSA
1993-09-3017:58 UTCm7201961.94  4OUSGSSA
1993-12-2816:58 UTCm62610 4.06NGVD294OUSGSSA
1993-12-2816:58 UTCm62611 2.98NAVD884OUSGSSA
1993-12-2816:58 UTCm7201960.94  4OUSGSSA
1994-03-3019:08 UTCm62610 6.53NGVD294OUSGSSA
1994-03-3019:08 UTCm62611 5.45NAVD884OUSGSSA
1994-03-3019:08 UTCm7201958.47  4OUSGSSA
1994-06-0817:16 UTCm62610 0.96NGVD294OUSGSSA
1994-06-0817:16 UTCm62611 -0.12NAVD884OUSGSSA
1994-06-0817:16 UTCm7201964.04  4OUSGSSA
1994-09-2017:20 UTCm62610 2.92NGVD294OUSGSSA
1994-09-2017:20 UTCm62611 1.84NAVD884OUSGSSA
1994-09-2017:20 UTCm7201962.08  4OUSGSSA
1994-12-1615:55 UTCm62610 7.11NGVD294OUSGSSA
1994-12-1615:55 UTCm62611 6.03NAVD884OUSGSSA
1994-12-1615:55 UTCm7201957.89  4OUSGSSA
1995-03-1515:08 UTCm62610 5.72NGVD294OUSGSSA
1995-03-1515:08 UTCm62611 4.64NAVD884OUSGSSA
1995-03-1515:08 UTCm7201959.28  4OUSGSSA
1995-06-1418:10 UTCm62610 6.05NGVD294OUSGSSA
1995-06-1418:10 UTCm62611 4.97NAVD884OUSGSSA
1995-06-1418:10 UTCm7201958.95  4OUSGSSA
1995-08-2415:51 UTCm62610 -3.06NGVD294OUSGSSA
1995-08-2415:51 UTCm62611 -4.14NAVD884OUSGSSA
1995-08-2415:51 UTCm7201968.06  4OUSGSSA
1995-12-0415:38 UTCm62610 4.68NGVD294OUSGSSA
1995-12-0415:38 UTCm62611 3.60NAVD884OUSGSSA
1995-12-0415:38 UTCm7201960.32  4OUSGSSA
1996-03-2219:00 UTCm62610 1.52NGVD294OUSGSSA
1996-03-2219:00 UTCm62611 0.44NAVD884OUSGSSA
1996-03-2219:00 UTCm7201963.48  4OUSGSSA
1996-05-1616:31 UTCm62610 3.05NGVD294OUSGSSA
1996-05-1616:31 UTCm62611 1.97NAVD884OUSGSSA
1996-05-1616:31 UTCm7201961.95  4OUSGSSA
1996-09-1015:25 UTCm62610 3.48NGVD294OUSGSSA
1996-09-1015:25 UTCm62611 2.40NAVD884OUSGSSA
1996-09-1015:25 UTCm7201961.52  4OUSGSSA
1997-03-1017:30 UTCm62610 6.98NGVD294OUSGSSA
1997-03-1017:30 UTCm62611 5.90NAVD884OUSGSSA
1997-03-1017:30 UTCm7201958.02  4OUSGSSA
1998-03-2513:58 UTCm62610 6.80NGVD294SUSGSSA
1998-03-2513:58 UTCm62611 5.72NAVD884SUSGSSA
1998-03-2513:58 UTCm7201958.20  4SUSGSSA
2006-03-2920:37 UTCm62610 5.11NGVD294SUSGSSA
2006-03-2920:37 UTCm62611 4.03NAVD884SUSGSSA
2006-03-2920:37 UTCm7201959.89  4SUSGSSA
2007-03-2716:45 UTCm62610 4.81NGVD291SUSGSSA
2007-03-2716:45 UTCm62611 3.73NAVD881SUSGSSA
2007-03-2716:45 UTCm7201960.19  1SUSGSSA
2008-04-2117:23 UTCm62610 7.14NGVD294S  A
2008-04-2117:23 UTCm62611 6.06NAVD884S  A
2008-04-2117:23 UTCm7201957.86  4S  A
2009-04-2215:19 UTCm62610 7.29NGVD294S  A
2009-04-2215:19 UTCm62611 6.21NAVD884S  A
2009-04-2215:19 UTCm7201957.71  4S  A
2010-04-2614:42 UTCm62610 8.58NGVD291SUSGSSA
2010-04-2614:42 UTCm62611 7.50NAVD881SUSGSSA
2010-04-2614:42 UTCm7201956.42  1SUSGSSA
2011-06-0216:42 UTCm62610 6.09NGVD294SUSGSSA
2011-06-0216:42 UTCm62611 5.01NAVD884SUSGSSA
2011-06-0216:42 UTCm7201958.91  4SUSGSSA
2012-04-1815:24 UTCm62610 6.00NGVD291S  A
2012-04-1815:24 UTCm62611 4.92NAVD881S  A
2012-04-1815:24 UTCm7201959.00  1S  A
2013-04-2616:38 UTCm62610 2.81NGVD294SUSGSSA
2013-04-2616:38 UTCm62611 1.73NAVD884SUSGSSA
2013-04-2616:38 UTCm7201962.19  4SUSGSSA
2013-06-2517:38 UTCm62610 2.75NGVD294S  A
2013-06-2517:38 UTCm62611 1.67NAVD884S  A
2013-06-2517:38 UTCm7201962.25  4S  A
2013-07-2416:35 UTCm62610 0.50NGVD294SUSGSSA
2013-07-2416:35 UTCm62611 -0.58NAVD884SUSGSSA
2013-07-2416:35 UTCm7201964.50  4SUSGSSA
2013-08-2316:34 UTCm62610 -0.41NGVD294SUSGSSA
2013-08-2316:34 UTCm62611 -1.49NAVD884SUSGSSA
2013-08-2316:34 UTCm7201965.41  4SUSGSSA
2013-09-2419:10 UTCm62610 0.64NGVD294SUSGSSA
2013-09-2419:10 UTCm62611 -0.44NAVD884SUSGSSA
2013-09-2419:10 UTCm7201964.36  4SUSGSSA
2013-10-2217:10 UTCm62610 1.29NGVD294SUSGSSA
2013-10-2217:10 UTCm62611 0.21NAVD884SUSGSSA
2013-10-2217:10 UTCm7201963.71  4SUSGSSA
2013-11-2117:48 UTCm62610 5.57NGVD294SUSGSSA
2013-11-2117:48 UTCm62611 4.49NAVD884SUSGSSA
2013-11-2117:48 UTCm7201959.43  4SUSGSSA
2013-12-2319:01 UTCm62610 6.87NGVD294SUSGSSA
2013-12-2319:01 UTCm62611 5.79NAVD884SUSGSSA
2013-12-2319:01 UTCm7201958.13  4SUSGSSA
2014-01-3015:45 UTCm62610 7.60NGVD294S  A
2014-01-3015:45 UTCm62611 6.52NAVD884S  A
2014-01-3015:45 UTCm7201957.40  4S  A
2014-02-2714:57 UTCm62610 7.50NGVD294SUSGSSA
2014-02-2714:57 UTCm62611 6.42NAVD884SUSGSSA
2014-02-2714:57 UTCm7201957.50  4SUSGSSA
2014-03-2018:05 UTCm62610 6.37NGVD294SUSGSSA
2014-03-2018:05 UTCm62611 5.29NAVD884SUSGSSA
2014-03-2018:05 UTCm7201958.63  4SUSGSSA
2014-04-1817:46 UTCm62610 6.62NGVD294SUSGSSA
2014-04-1817:46 UTCm62611 5.54NAVD884SUSGSSA
2014-04-1817:46 UTCm7201958.38  4SUSGSSA
2014-05-1616:44 UTCm62610 6.82NGVD294SUSGSSA
2014-05-1616:44 UTCm62611 5.74NAVD884SUSGSSA
2014-05-1616:44 UTCm7201958.18  4SUSGSSA
2014-06-1618:06 UTCm62610 4.63NGVD294SUSGSSA
2014-06-1618:06 UTCm62611 3.55NAVD884SUSGSSA
2014-06-1618:06 UTCm7201960.37  4SUSGSSA
2014-07-2314:37 UTCm62610 1.80NGVD294SUSGSSA
2014-07-2314:37 UTCm62611 0.72NAVD884SUSGSSA
2014-07-2314:37 UTCm7201963.20  4SUSGSSA
2014-08-2716:54 UTCm62610 3.01NGVD294SUSGSSA
2014-08-2716:54 UTCm62611 1.93NAVD884SUSGSSA
2014-08-2716:54 UTCm7201961.99  4SUSGSSA
2014-10-2718:02 UTCm62610 5.14NGVD294SUSGSSA
2014-10-2718:02 UTCm62611 4.06NAVD884SUSGSSA
2014-10-2718:02 UTCm7201959.86  4SUSGSSA
2014-11-2518:00 UTCm62610 7.34NGVD294SUSGSSA
2014-11-2518:00 UTCm62611 6.26NAVD884SUSGSSA
2014-11-2518:00 UTCm7201957.66  4SUSGSSA
2015-01-2318:03 UTCm62610 7.92NGVD294S  A
2015-01-2318:03 UTCm62611 6.84NAVD884S  A
2015-01-2318:03 UTCm7201957.08  4S  A
2015-02-2319:52 UTCm62610 6.68NGVD294SUSGSSA
2015-02-2319:52 UTCm62611 5.60NAVD884SUSGSSA
2015-02-2319:52 UTCm7201958.32  4SUSGSSA
2015-03-3114:23 UTCm62610 7.21NGVD294SUSGSSA
2015-03-3114:23 UTCm62611 6.13NAVD884SUSGSSA
2015-03-3114:23 UTCm7201957.79  4SUSGSSA
2015-04-1515:30 UTCm62610 6.73NGVD294SUSGSSA
2015-04-1515:30 UTCm62611 5.65NAVD884SUSGSSA
2015-04-1515:30 UTCm7201958.27  4SUSGSSA
2015-05-2018:23 UTCm62610 4.27NGVD294SUSGSSA
2015-05-2018:23 UTCm62611 3.19NAVD884SUSGSSA
2015-05-2018:23 UTCm7201960.73  4SUSGSSA
2015-08-3117:19 UTCm62610 4.90NGVD294SUSGSSA
2015-08-3117:19 UTCm62611 3.82NAVD884SUSGSSA
2015-08-3117:19 UTCm7201960.10  4SUSGSSA
2015-09-2816:15 UTCm62610 4.44NGVD294SUSGSSA
2015-09-2816:15 UTCm62611 3.36NAVD884SUSGSSA
2015-09-2816:15 UTCm7201960.56  4SUSGSSA
2015-10-2715:41 UTCm62610 5.79NGVD294SUSGSSA
2015-10-2715:41 UTCm62611 4.71NAVD884SUSGSSA
2015-10-2715:41 UTCm7201959.21  4SUSGSSA
2015-11-2414:58 UTCm62610 6.24NGVD294SUSGSSA
2015-11-2414:58 UTCm62611 5.16NAVD884SUSGSSA
2015-11-2414:58 UTCm7201958.76  4SUSGSSA
2015-12-1417:13 UTCm62610 5.99NGVD294SUSGSSA
2015-12-1417:13 UTCm62611 4.91NAVD884SUSGSSA
2015-12-1417:13 UTCm7201959.01  4SUSGSSA
2016-03-2417:30 UTCm62610 7.37NGVD291SUSGSSA
2016-03-2417:30 UTCm62611 6.29NAVD881SUSGSSA
2016-03-2417:30 UTCm7201957.63  1SUSGSSA
2016-04-1814:45 UTCm62610 4.56NGVD291S  A
2016-04-1814:45 UTCm62611 3.48NAVD881S  A
2016-04-1814:45 UTCm7201960.44  1S  A
2016-06-1614:27 UTCm62610 4.07NGVD291TUSGSSA
2016-06-1614:27 UTCm62611 2.99NAVD881TUSGSSA
2016-06-1614:27 UTCm7201960.93  1TUSGSSA
2016-08-0315:09 UTCm62610 4.39NGVD291TUSGSSA
2016-08-0315:09 UTCm62611 3.31NAVD881TUSGSSA
2016-08-0315:09 UTCm7201960.61  1TUSGSSA
2016-08-1615:02 UTCm62610 3.50NGVD291SUSGSSA
2016-08-1615:02 UTCm62611 2.42NAVD881SUSGSSA
2016-08-1615:02 UTCm7201961.50  1SUSGSSA
2016-09-2814:54 UTCm62610 4.73NGVD291TUSGSSA
2016-09-2814:54 UTCm62611 3.65NAVD881TUSGSSA
2016-09-2814:54 UTCm7201960.27  1TUSGSSA
2016-10-2614:07 UTCm62610 5.03NGVD291TUSGSSA
2016-10-2614:07 UTCm62611 3.95NAVD881TUSGSSA
2016-10-2614:07 UTCm7201959.97  1TUSGSSA
2016-11-2914:45 UTCm62610 7.21NGVD291TUSGSSA
2016-11-2914:45 UTCm62611 6.13NAVD881TUSGSSA
2016-11-2914:45 UTCm7201957.79  1TUSGSSA
2016-12-2917:33 UTCm62610 8.25NGVD291VUSGSSA
2016-12-2917:33 UTCm62611 7.17NAVD881VUSGSSA
2016-12-2917:33 UTCm7201956.75  1VUSGSSA
2017-02-0715:53 UTCm62610 7.02NGVD291TUSGSSA
2017-02-0715:53 UTCm62611 5.94NAVD881TUSGSSA
2017-02-0715:53 UTCm7201957.98  1TUSGSSA
2017-02-2716:05 UTCm62610 6.95NGVD291TUSGSSA
2017-02-2716:05 UTCm62611 5.87NAVD881TUSGSSA
2017-02-2716:05 UTCm7201958.05  1TUSGSSA
2017-03-2414:09 UTCm62610 5.86NGVD294TUSGSSA
2017-03-2414:09 UTCm62611 4.78NAVD884TUSGSSA
2017-03-2414:09 UTCm7201959.14  4TUSGSSA
2017-04-2618:00 UTCm62610 7.11NGVD291TUSGSSA
2017-04-2618:00 UTCm62611 6.03NAVD881TUSGSSA
2017-04-2618:00 UTCm7201957.89  1TUSGSSA
2017-06-0116:11 UTCm62610 5.50NGVD291TUSGSSA
2017-06-0116:11 UTCm62611 4.42NAVD881TUSGSSA
2017-06-0116:11 UTCm7201959.50  1TUSGSSA
2017-07-0614:14 UTCm62610 4.51NGVD294TUSGSSA
2017-07-0614:14 UTCm62611 3.43NAVD884TUSGSSA
2017-07-0614:14 UTCm7201960.49  4TUSGSSA
2017-08-2417:21 UTCm62610 5.63NGVD294TUSGSSA
2017-08-2417:21 UTCm62611 4.55NAVD884TUSGSSA
2017-08-2417:21 UTCm7201959.37  4TUSGSSA
2017-10-1916:44 UTCm62610 6.55NGVD294SUSGSSA
2017-10-1916:44 UTCm62611 5.47NAVD884SUSGSSA
2017-10-1916:44 UTCm7201958.45  4SUSGSSA
2018-02-1214:40 UTCm62610 6.93NGVD291TUSGSSA
2018-02-1214:40 UTCm62611 5.85NAVD881TUSGSSA
2018-02-1214:40 UTCm7201958.07  1TUSGSSA
2018-03-2715:06 UTCm62610 7.40NGVD291TUSGSSA
2018-03-2715:06 UTCm62611 6.32NAVD881TUSGSSA
2018-03-2715:06 UTCm7201957.60  1TUSGSSA
2018-04-2314:15 UTCm62610 5.66NGVD291TUSGSSA
2018-04-2314:15 UTCm62611 4.58NAVD881TUSGSSA
2018-04-2314:15 UTCm7201959.34  1TUSGSSA
2018-05-2514:13 UTCm62610 6.58NGVD291TUSGSSA
2018-05-2514:13 UTCm62611 5.50NAVD881TUSGSSA
2018-05-2514:13 UTCm7201958.42  1TUSGSSA
2018-06-2614:59 UTCm62610 5.30NGVD291TUSGSSA
2018-06-2614:59 UTCm62611 4.22NAVD881TUSGSSA
2018-06-2614:59 UTCm7201959.70  1TUSGSSA
2018-08-1014:28 UTCm62610 5.70NGVD291VUSGSSA
2018-08-1014:28 UTCm62611 4.62NAVD881VUSGSSA
2018-08-1014:28 UTCm7201959.30  1VUSGSSA
2018-09-2414:31 UTCm62610 5.93NGVD291VUSGSSA
2018-09-2414:31 UTCm62611 4.85NAVD881VUSGSSA
2018-09-2414:31 UTCm7201959.07  1VUSGSSA
2018-10-1914:34 UTCm62610 5.85NGVD291VUSGSSA
2018-10-1914:34 UTCm62611 4.77NAVD881VUSGSSA
2018-10-1914:34 UTCm7201959.15  1VUSGSSA
2018-12-0315:00 UTCm62610 6.54NGVD294VUSGSSA
2018-12-0315:00 UTCm62611 5.46NAVD884VUSGSSA
2018-12-0315:00 UTCm7201958.46  4VUSGSSA
2019-02-0617:21 UTCm62610 8.10NGVD294VUSGSSA
2019-02-0617:21 UTCm62611 7.02NAVD884VUSGSSA
2019-02-0617:21 UTCm7201956.90  4VUSGSSA
2019-04-1715:12 UTCm62610 7.55NGVD291VUSGSSA
2019-04-1715:12 UTCm62611 6.47NAVD881VUSGSSA
2019-04-1715:12 UTCm7201957.45  1VUSGSSA
2019-05-1414:18 UTCm62610 8.65NGVD294VUSGSSA
2019-05-1414:18 UTCm62611 7.57NAVD884VUSGSSA
2019-05-1414:18 UTCm7201956.35  4VUSGSSA
2019-07-0117:13 UTCm62610 8.66NGVD291VUSGSSA
2019-07-0117:13 UTCm62611 7.58NAVD881VUSGSSA
2019-07-0117:13 UTCm7201956.34  1VUSGSSA
2019-09-1316:46 UTCm62610 8.78NGVD291VUSGSSA
2019-09-1316:46 UTCm62611 7.70NAVD881VUSGSSA
2019-09-1316:46 UTCm7201956.22  1VUSGSSA
2019-11-0615:42 UTCm62610 9.15NGVD291VUSGSSA
2019-11-0615:42 UTCm62611 8.07NAVD881VUSGSSA
2019-11-0615:42 UTCm7201955.85  1VUSGSSA
2019-12-0913:41 UTCm62610 9.39NGVD291VUSGSSA
2019-12-0913:41 UTCm62611 8.31NAVD881VUSGSSA
2019-12-0913:41 UTCm7201955.61  1VUSGSSA
2020-01-2114:06 UTCm62610 9.39NGVD291VUSGSSA
2020-01-2114:06 UTCm62611 8.31NAVD881VUSGSSA
2020-01-2114:06 UTCm7201955.61  1VUSGSSA
2020-07-0713:41 UTCm62610 10.56NGVD291VUSGSSA
2020-07-0713:41 UTCm62611 9.48NAVD881VUSGSSA
2020-07-0713:41 UTCm7201954.44  1VUSGSSA
2020-07-3014:52 UTCm62610 6.19NGVD291VUSGSSA
2020-07-3014:52 UTCm62611 5.11NAVD881VUSGSSA
2020-07-3014:52 UTCm7201958.81  1VUSGSSA
2020-11-0317:02 UTCm62610 5.13NGVD291VUSGSSA
2020-11-0317:02 UTCm62611 4.05NAVD881VUSGSSA
2020-11-0317:02 UTCm7201959.87  1VUSGSSA
2021-04-0914:11 UTCm62610 7.18NGVD291VUSGSSA
2021-04-0914:11 UTCm62611 6.10NAVD881VUSGSSA
2021-04-0914:11 UTCm7201957.82  1VUSGSSA
2021-05-2414:18 UTCm62610 7.03NGVD291VUSGSSA
2021-05-2414:18 UTCm62611 5.95NAVD881VUSGSSA
2021-05-2414:18 UTCm7201957.97  1VUSGSSA
2021-06-2915:10 UTCm62610 0.82NGVD291VUSGSSA
2021-06-2915:10 UTCm62611 -0.26NAVD881VUSGSSA
2021-06-2915:10 UTCm7201964.18  1VUSGSSA
2021-07-2617:18 UTCm62610 5.35NGVD294VUSGSSA
2021-07-2617:18 UTCm62611 4.27NAVD884VUSGSSA
2021-07-2617:18 UTCm7201959.65  4VUSGSSA
2022-09-2016:51 UTCm62610 2.33NGVD291VUSGSSA
2022-09-2016:51 UTCm62611 1.25NAVD881VUSGSSA
2022-09-2016:51 UTCm7201962.67  1VUSGSSA
2023-04-1915:00 UTCm62610 7.18NGVD294VUSGSSA
2023-04-1915:00 UTCm62611 6.10NAVD884VUSGSSA
2023-04-1915:00 UTCm7201957.82  4VUSGSSA
2024-05-0714:48 UTCm62610 6.89NGVD294VUSGSSA
2024-05-0714:48 UTCm62611 5.81NAVD884VUSGSSA
2024-05-0714:48 UTCm7201958.11  4VUSGSSA

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.