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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

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  • 405307073354602
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USGS 405307073354602 N 12646. 1

Nassau County, New York
Latitude  40°53'06.7", Longitude  73°35'43.7" NAD83
Land-surface elevation 89.0 feet above NGVD29
The depth of the well is 540 feet below land surface.
The depth of the hole is 545 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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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
1996-03-1916:48 UTCm62610 23.63NGVD294OUSGSSA
1996-03-1916:48 UTCm62611 22.56NAVD884OUSGSSA
1996-03-1916:48 UTCm7201965.37  4OUSGSSA
1996-05-1616:15 UTCm62610 21.22NGVD294OUSGSSA
1996-05-1616:15 UTCm62611 20.15NAVD884OUSGSSA
1996-05-1616:15 UTCm7201967.78  4OUSGSSA
1996-09-1116:00 UTCm62610 14.33NGVD294OUSGSSA
1996-09-1116:00 UTCm62611 13.26NAVD884OUSGSSA
1996-09-1116:00 UTCm7201974.67  4OUSGSSA
1996-12-1217:15 UTCm62610 23.70NGVD294OUSGSSA
1996-12-1217:15 UTCm62611 22.63NAVD884OUSGSSA
1996-12-1217:15 UTCm7201965.30  4OUSGSSA
1997-03-1118:05 UTCm62610 25.17NGVD294OUSGSSA
1997-03-1118:05 UTCm62611 24.10NAVD884OUSGSSA
1997-03-1118:05 UTCm7201963.83  4OUSGSSA
1997-05-2217:45 UTCm62610 24.46NGVD294OUSGSSA
1997-05-2217:45 UTCm62611 23.39NAVD884OUSGSSA
1997-05-2217:45 UTCm7201964.54  4OUSGSSA
1997-07-2320:40 UTCm62610 16.40NGVD291OUSGSSA
1997-07-2320:40 UTCm62611 15.33NAVD881OUSGSSA
1997-07-2320:40 UTCm7201972.60  1OUSGSSA
1997-08-2017:25 UTCm62610 18.70NGVD294OUSGSSA
1997-08-2017:25 UTCm62611 17.63NAVD884OUSGSSA
1997-08-2017:25 UTCm7201970.30  4OUSGSSA
1997-09-1615:26 UTCm62610 22.05NGVD294OUSGSSA
1997-09-1615:26 UTCm62611 20.98NAVD884OUSGSSA
1997-09-1615:26 UTCm7201966.95  4OUSGSSA
1998-03-2614:25 UTCm62610 26.30NGVD294SUSGSSA
1998-03-2614:25 UTCm62611 25.23NAVD884SUSGSSA
1998-03-2614:25 UTCm7201962.70  4SUSGSSA
2005-04-0121:36 UTCm62610 27.61NGVD291SUSGSSA
2005-04-0121:36 UTCm62611 26.54NAVD881SUSGSSA
2005-04-0121:36 UTCm7201961.39  1SUSGSSA
2006-03-3014:40 UTCm62610 19.78NGVD291SUSGSSA
2006-03-3014:40 UTCm62611 18.71NAVD881SUSGSSA
2006-03-3014:40 UTCm7201969.22  1SUSGSSA
2007-03-2718:59 UTCm62610 26.53NGVD291SUSGSSA
2007-03-2718:59 UTCm62611 25.46NAVD881SUSGSSA
2007-03-2718:59 UTCm7201962.47  1SUSGSSA
2008-04-2214:17 UTCm62610 23.65NGVD291S  A
2008-04-2214:17 UTCm62611 22.58NAVD881S  A
2008-04-2214:17 UTCm7201965.35  1S  A
2008-10-2113:37 UTCm62610 23.03NGVD291S  A
2008-10-2113:37 UTCm62611 21.96NAVD881S  A
2008-10-2113:37 UTCm7201965.97  1S  A
2008-12-0114:25 UTCm62610 26.87NGVD291S  A
2008-12-0114:25 UTCm62611 25.80NAVD881S  A
2008-12-0114:25 UTCm7201962.13  1S  A
2009-04-2316:07 UTCm62610 25.55NGVD291S  A
2009-04-2316:07 UTCm62611 24.48NAVD881S  A
2009-04-2316:07 UTCm7201963.45  1S  A
2010-04-2215:32 UTCm62610 25.41NGVD291SUSGSSA
2010-04-2215:32 UTCm62611 24.34NAVD881SUSGSSA
2010-04-2215:32 UTCm7201963.59  1SUSGSSA
2013-04-1717:59 UTCm62610 24.98NGVD291SUSGSSA
2013-04-1717:59 UTCm62611 23.91NAVD881SUSGSSA
2013-04-1717:59 UTCm7201964.02  1SUSGSSA
2013-07-1717:53 UTCm62610 12.48NGVD291TUSGSSA
2013-07-1717:53 UTCm62611 11.41NAVD881TUSGSSA
2013-07-1717:53 UTCm7201976.52  1TUSGSSA
2013-07-2320:09 UTCm62610 11.12NGVD291TUSGSSA
2013-07-2320:09 UTCm62611 10.05NAVD881TUSGSSA
2013-07-2320:09 UTCm7201977.88  1TUSGSSA
2013-07-2916:03 UTCm62610 11.92NGVD291TUSGSSA
2013-07-2916:03 UTCm62611 10.85NAVD881TUSGSSA
2013-07-2916:03 UTCm7201977.08  1TUSGSSA
2013-07-3021:53 UTCm62610 12.71NGVD294TUSGSSA
2013-07-3021:53 UTCm62611 11.64NAVD884TUSGSSA
2013-07-3021:53 UTCm7201976.29  4TUSGSSA
2013-09-0516:46 UTCm62610 13.48NGVD291SUSGSSA
2013-09-0516:46 UTCm62611 12.41NAVD881SUSGSSA
2013-09-0516:46 UTCm7201975.52  1SUSGSSA
2013-09-0518:29 UTCm62610 13.45NGVD291SUSGSSA
2013-09-0518:29 UTCm62611 12.38NAVD881SUSGSSA
2013-09-0518:29 UTCm7201975.55  1SUSGSSA
2013-09-0613:30 UTCm62610 12.69NGVD291SUSGSSA
2013-09-0613:30 UTCm62611 11.62NAVD881SUSGSSA
2013-09-0613:30 UTCm7201976.31  1SUSGSSA
2013-10-2318:27 UTCm62610 17.02NGVD291TUSGSSA
2013-10-2318:27 UTCm62611 15.95NAVD881TUSGSSA
2013-10-2318:27 UTCm7201971.98  1TUSGSSA
2013-11-0112:14 UTCm62610 19.32NGVD291TUSGSSA
2013-11-0112:14 UTCm62611 18.25NAVD881TUSGSSA
2013-11-0112:14 UTCm7201969.68  1TUSGSSA
2014-04-1419:05 UTCm62610 24.37NGVD291SUSGSSA
2014-04-1419:05 UTCm62611 23.30NAVD881SUSGSSA
2014-04-1419:05 UTCm7201964.63  1SUSGSSA
2015-04-1619:30 UTCm62610 24.18NGVD291SUSGSSA
2015-04-1619:30 UTCm62611 23.11NAVD881SUSGSSA
2015-04-1619:30 UTCm7201964.82  1SUSGSSA
2016-04-1821:29 UTCm62610 22.48NGVD291S  A
2016-04-1821:29 UTCm62611 21.41NAVD881S  A
2016-04-1821:29 UTCm7201966.52  1S  A
2017-04-1719:28 UTCm62610 23.03NGVD291VUSGSSA
2017-04-1719:28 UTCm62611 21.96NAVD881VUSGSSA
2017-04-1719:28 UTCm7201965.97  1VUSGSSA
2018-04-1819:12 UTCm62610 23.33NGVD291TUSGSSA
2018-04-1819:12 UTCm62611 22.26NAVD881TUSGSSA
2018-04-1819:12 UTCm7201965.67  1TUSGSSA
2019-04-2219:38 UTCm62610 23.10NGVD291VUSGSSA
2019-04-2219:38 UTCm62611 22.03NAVD881VUSGSSA
2019-04-2219:38 UTCm7201965.90  1VUSGSSA
2020-10-2618:55 UTCm62610 18.98NGVD291VUSGSSA
2020-10-2618:55 UTCm62611 17.91NAVD881VUSGSSA
2020-10-2618:55 UTCm7201970.02  1VUSGSSA
2021-04-2818:26 UTCm62610 18.73NGVD291VUSGSSA
2021-04-2818:26 UTCm62611 17.66NAVD881VUSGSSA
2021-04-2818:26 UTCm7201970.27  1VUSGSSA
2022-05-1817:20 UTCm62610 17.42NGVD291VUSGSSA
2022-05-1817:20 UTCm62611 16.35NAVD881VUSGSSA
2022-05-1817:20 UTCm7201971.58  1VUSGSSA
2023-05-1117:32 UTCm62610 14.03NGVD291VUSGSSA
2023-05-1117:32 UTCm62611 12.96NAVD881VUSGSSA
2023-05-1117:32 UTCm7201974.97  1VUSGSSA
2024-05-1023:42 UTCm62610 21.23NGVD291VUSGSSA
2024-05-1023:42 UTCm62611 20.16NAVD881VUSGSSA
2024-05-1023:42 UTCm7201967.77  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.