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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

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  • 405030073282101
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USGS 405030073282101 N 12075. 1

Nassau County, New York
Latitude  40°50'30.3", Longitude  73°28'18.8" NAD83
Land-surface elevation 198.0 feet above NGVD29
The depth of the well is 855 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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code
Water
level,
feet
below
land
surface
Water
level,
feet
above
specific
vertical
datum
Referenced
vertical
datum
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1993-04-1418:02 UTCm62610 37.42NGVD291SUSGSSA
1993-04-1418:02 UTCm62611 36.36NAVD881SUSGSSA
1993-04-1418:02 UTCm72019160.58  1SUSGSSA
1993-06-0918:10 UTCm62610 36.71NGVD291OUSGSSA
1993-06-0918:10 UTCm62611 35.65NAVD881OUSGSSA
1993-06-0918:10 UTCm72019161.29  1OUSGSSA
1993-06-2213:55 UTCm62610 36.27NGVD291OUSGSSA
1993-06-2213:55 UTCm62611 35.21NAVD881OUSGSSA
1993-06-2213:55 UTCm72019161.73  1OUSGSSA
1993-12-2217:45 UTCm62610 36.90NGVD291OUSGSSA
1993-12-2217:45 UTCm62611 35.84NAVD881OUSGSSA
1993-12-2217:45 UTCm72019161.10  1OUSGSSA
1994-04-0716:20 UTCm62610 37.03NGVD291OUSGSSA
1994-04-0716:20 UTCm62611 35.97NAVD881OUSGSSA
1994-04-0716:20 UTCm72019160.97  1OUSGSSA
1994-06-1014:45 UTCm62610 36.01NGVD291OUSGSSA
1994-06-1014:45 UTCm62611 34.95NAVD881OUSGSSA
1994-06-1014:45 UTCm72019161.99  1OUSGSSA
1994-12-2217:53 UTCm62610 36.06NGVD291OUSGSSA
1994-12-2217:53 UTCm62611 35.00NAVD881OUSGSSA
1994-12-2217:53 UTCm72019161.94  1OUSGSSA
1995-03-1419:30 UTCm62610 36.15NGVD291OUSGSSA
1995-03-1419:30 UTCm62611 35.09NAVD881OUSGSSA
1995-03-1419:30 UTCm72019161.85  1OUSGSSA
1995-06-1416:46 UTCm62610 34.98NGVD291OUSGSSA
1995-06-1416:46 UTCm62611 33.92NAVD881OUSGSSA
1995-06-1416:46 UTCm72019163.02  1OUSGSSA
1995-12-0614:20 UTCm62610 34.04NGVD291OUSGSSA
1995-12-0614:20 UTCm62611 32.98NAVD881OUSGSSA
1995-12-0614:20 UTCm72019163.96  1OUSGSSA
1996-03-1817:25 UTCm62610 34.26NGVD291OUSGSSA
1996-03-1817:25 UTCm62611 33.20NAVD881OUSGSSA
1996-03-1817:25 UTCm72019163.74  1OUSGSSA
1996-05-1613:42 UTCm62610 33.87NGVD291OUSGSSA
1996-05-1613:42 UTCm62611 32.81NAVD881OUSGSSA
1996-05-1613:42 UTCm72019164.13  1OUSGSSA
1996-09-1113:44 UTCm62610 33.81NGVD291OUSGSSA
1996-09-1113:44 UTCm62611 32.75NAVD881OUSGSSA
1996-09-1113:44 UTCm72019164.19  1OUSGSSA
1997-03-1116:44 UTCm62610 37.27NGVD291OUSGSSA
1997-03-1116:44 UTCm62611 36.21NAVD881OUSGSSA
1997-03-1116:44 UTCm72019160.73  1OUSGSSA
1997-05-2212:45 UTCm62610 36.31NGVD291OUSGSSA
1997-05-2212:45 UTCm62611 35.25NAVD881OUSGSSA
1997-05-2212:45 UTCm72019161.69  1OUSGSSA
1997-07-2212:55 UTCm62610 35.09NGVD291OUSGSSA
1997-07-2212:55 UTCm62611 34.03NAVD881OUSGSSA
1997-07-2212:55 UTCm72019162.91  1OUSGSSA
1997-08-2116:30 UTCm62610 35.55NGVD291OUSGSSA
1997-08-2116:30 UTCm62611 34.49NAVD881OUSGSSA
1997-08-2116:30 UTCm72019162.45  1OUSGSSA
1997-09-1613:40 UTCm62610 35.25NGVD291OUSGSSA
1997-09-1613:40 UTCm62611 34.19NAVD881OUSGSSA
1997-09-1613:40 UTCm72019162.75  1OUSGSSA
1998-03-2316:00 UTCm62610 36.91NGVD291SUSGSSA
1998-03-2316:00 UTCm62611 35.85NAVD881SUSGSSA
1998-03-2316:00 UTCm72019161.09  1SUSGSSA
1999-03-3013:40 UTCm62610 37.84NGVD291SUSGSSA
1999-03-3013:40 UTCm62611 36.78NAVD881SUSGSSA
1999-03-3013:40 UTCm72019160.16  1SUSGSSA
2000-03-2116:42 UTCm62610 36.17NGVD291SUSGSSA
2000-03-2116:42 UTCm62611 35.11NAVD881SUSGSSA
2000-03-2116:42 UTCm72019161.83  1SUSGSSA
2001-03-2017:45 UTCm62610 36.33NGVD291SUSGSSA
2001-03-2017:45 UTCm62611 35.27NAVD881SUSGSSA
2001-03-2017:45 UTCm72019161.67  1SUSGSSA
2002-03-2820:05 UTCm62610 36.31NGVD291SUSGSSA
2002-03-2820:05 UTCm62611 35.25NAVD881SUSGSSA
2002-03-2820:05 UTCm72019161.69  1SUSGSSA
2003-04-0215:01 UTCm62610 34.51NGVD291SUSGSSA
2003-04-0215:01 UTCm62611 33.45NAVD881SUSGSSA
2003-04-0215:01 UTCm72019163.49  1SUSGSSA
2004-03-1516:19 UTCm62610 36.93NGVD291SUSGSSA
2004-03-1516:19 UTCm62611 35.87NAVD881SUSGSSA
2004-03-1516:19 UTCm72019161.07  1SUSGSSA
2006-03-2114:43 UTCm62610 39.51NGVD291SUSGSSA
2006-03-2114:43 UTCm62611 38.45NAVD881SUSGSSA
2006-03-2114:43 UTCm72019158.49  1SUSGSSA
2007-03-2614:59 UTCm62610 39.84NGVD291SUSGSSA
2007-03-2614:59 UTCm62611 38.78NAVD881SUSGSSA
2007-03-2614:59 UTCm72019158.16  1SUSGSSA
2008-04-3016:51 UTCm62610 39.47NGVD291SUSGSSA
2008-04-3016:51 UTCm62611 38.41NAVD881SUSGSSA
2008-04-3016:51 UTCm72019158.53  1SUSGSSA
2010-04-2115:51 UTCm62610 39.60NGVD291SUSGSSA
2010-04-2115:51 UTCm62611 38.54NAVD881SUSGSSA
2010-04-2115:51 UTCm72019158.40  1SUSGSSA
2011-04-2216:14 UTCm62610 39.30NGVD291SUSGSSA
2011-04-2216:14 UTCm62611 38.24NAVD881SUSGSSA
2011-04-2216:14 UTCm72019158.70  1SUSGSSA
2012-04-1820:26 UTCm62610 39.50NGVD291SUSGSSA
2012-04-1820:26 UTCm62611 38.44NAVD881SUSGSSA
2012-04-1820:26 UTCm72019158.50  1SUSGSSA
2013-04-1816:11 UTCm62610 38.62NGVD291SUSGSSA
2013-04-1816:11 UTCm62611 37.56NAVD881SUSGSSA
2013-04-1816:11 UTCm72019159.38  1SUSGSSA
2014-04-1714:20 UTCm62610 37.21NGVD291SUSGSSA
2014-04-1714:20 UTCm62611 36.15NAVD881SUSGSSA
2014-04-1714:20 UTCm72019160.79  1SUSGSSA
2015-04-2215:33 UTCm62610 38.23NGVD291SUSGSSA
2015-04-2215:33 UTCm62611 37.17NAVD881SUSGSSA
2015-04-2215:33 UTCm72019159.77  1SUSGSSA
2016-04-2016:46 UTCm62610 36.78NGVD291TUSGSSA
2016-04-2016:46 UTCm62611 35.72NAVD881TUSGSSA
2016-04-2016:46 UTCm72019161.22  1TUSGSSA
2017-04-1914:45 UTCm62610 35.25NGVD291TUSGSSA
2017-04-1914:45 UTCm62611 34.19NAVD881TUSGSSA
2017-04-1914:45 UTCm72019162.75  1TUSGSSA
2019-04-1714:38 UTCm62610 36.83NGVD291VUSGSSA
2019-04-1714:38 UTCm62611 35.77NAVD881VUSGSSA
2019-04-1714:38 UTCm72019161.17  1VUSGSSA
2020-10-2114:52 UTCm62610 36.32NGVD291VUSGSSA
2020-10-2114:52 UTCm62611 35.26NAVD881VUSGSSA
2020-10-2114:52 UTCm72019161.68  1VUSGSSA
2021-04-1914:55 UTCm62610 37.78NGVD291VUSGSSA
2021-04-1914:55 UTCm62611 36.72NAVD881VUSGSSA
2021-04-1914:55 UTCm72019160.22  1VUSGSSA
2022-05-1717:45 UTCm62610 38.26NGVD291VUSGSSA
2022-05-1717:45 UTCm62611 37.20NAVD881VUSGSSA
2022-05-1717:45 UTCm72019159.74  1VUSGSSA
2023-04-2716:15 UTCm62610 36.81NGVD291VUSGSSA
2023-04-2716:15 UTCm62611 35.75NAVD881VUSGSSA
2023-04-2716:15 UTCm72019161.19  1VUSGSSA
2024-05-0818:23 UTCm62610 39.04NGVD291VUSGSSA
2024-05-0818:23 UTCm62611 37.98NAVD881VUSGSSA
2024-05-0818:23 UTCm72019158.96  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.