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Groundwater levels for the Nation

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USGS 404345073411901 N 7650. 1

Nassau County, New York
Latitude  40°43'44", Longitude  73°41'21" NAD27
Land-surface elevation 97.0 feet above NGVD29
The depth of the well is 445 feet below land surface.
The depth of the hole is 490 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 Magothy Aquifer (211MAGT) local aquifer.
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Reselect period
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
1967-12-15 D62610 37.50NGVD291OUSGSSA
1967-12-15 D62611 36.39NAVD881OUSGSSA
1967-12-15 D7201959.50  1OUSGSSA
1968-01-08 D62610 35.50NGVD291OUSGSSA
1968-01-08 D62611 34.39NAVD881OUSGSSA
1968-01-08 D7201961.50  1OUSGSSA
1970-03-18 D62610 32.88NGVD291OUSGSSA
1970-03-18 D62611 31.77NAVD881OUSGSSA
1970-03-18 D7201964.12  1OUSGSSA
1971-03-09 D62610 32.63NGVD291OUSGSSA
1971-03-09 D62611 31.52NAVD881OUSGSSA
1971-03-09 D7201964.37  1OUSGSSA
1972-03-14 D62610 33.92NGVD291OUSGSSA
1972-03-14 D62611 32.81NAVD881OUSGSSA
1972-03-14 D7201963.08  1OUSGSSA
1974-03-26 D62610 34.53NGVD291OUSGSSA
1974-03-26 D62611 33.42NAVD881OUSGSSA
1974-03-26 D7201962.47  1OUSGSSA
1975-03-20 D62610 33.71NGVD291OUSGSSA
1975-03-20 D62611 32.60NAVD881OUSGSSA
1975-03-20 D7201963.29  1OUSGSSA
1976-03-18 D62610 41.35NGVD291OUSGSSA
1976-03-18 D62611 40.24NAVD881OUSGSSA
1976-03-18 D7201955.65  1OUSGSSA
1978-03-21 D62610 36.81NGVD291OUSGSSA
1978-03-21 D62611 35.70NAVD881OUSGSSA
1978-03-21 D7201960.19  1OUSGSSA
1979-03-14 D62610 38.00NGVD291OUSGSSA
1979-03-14 D62611 36.89NAVD881OUSGSSA
1979-03-14 D7201959.00  1OUSGSSA
1980-03-12 D62610 37.45NGVD291OUSGSSA
1980-03-12 D62611 36.34NAVD881OUSGSSA
1980-03-12 D7201959.55  1OUSGSSA
1981-03-13 D62610 33.60NGVD291OUSGSSA
1981-03-13 D62611 32.49NAVD881OUSGSSA
1981-03-13 D7201963.40  1OUSGSSA
1984-05-0812:15 UTCm62610 38.36NGVD291OUSGSSA
1984-05-0812:15 UTCm62611 37.25NAVD881OUSGSSA
1984-05-0812:15 UTCm7201958.64  1OUSGSSA
1985-05-0117:26 UTCm62610 39.62NGVD291OUSGSSA
1985-05-0117:26 UTCm62611 38.51NAVD881OUSGSSA
1985-05-0117:26 UTCm7201957.38  1OUSGSSA
1992-03-2319:00 UTCm62610 40.38NGVD29POUSGSSA
1992-03-2319:00 UTCm62611 39.27NAVD88POUSGSSA
1992-03-2319:00 UTCm7201956.62  POUSGSSA
1993-04-0617:30 UTCm62610 40.06NGVD29POUSGSSA
1993-04-0617:30 UTCm62611 38.95NAVD88POUSGSSA
1993-04-0617:30 UTCm7201956.94  POUSGSSA
1994-05-0414:19 UTCm62610 41.82NGVD291OUSGSSA
1994-05-0414:19 UTCm62611 40.71NAVD881OUSGSSA
1994-05-0414:19 UTCm7201955.18  1OUSGSSA
1995-05-0318:15 UTCm62610 38.07NGVD291SUSGSSA
1995-05-0318:15 UTCm62611 36.96NAVD881SUSGSSA
1995-05-0318:15 UTCm7201958.93  1SUSGSSA
1997-04-2319:32 UTCm62610 40.59NGVD29PSUSGSSA
1997-04-2319:32 UTCm62611 39.48NAVD88PSUSGSSA
1997-04-2319:32 UTCm7201956.41  PSUSGSSA
1998-04-2320:05 UTCm62610 43.82NGVD291SUSGSSA
1998-04-2320:05 UTCm62611 42.71NAVD881SUSGSSA
1998-04-2320:05 UTCm7201953.18  1SUSGSSA
1999-05-0414:45 UTCm62610 41.96NGVD291SUSGSSA
1999-05-0414:45 UTCm62611 40.85NAVD881SUSGSSA
1999-05-0414:45 UTCm7201955.04  1SUSGSSA
2000-03-2113:45 UTCm62610 36.64NGVD291SUSGSSA
2000-03-2113:45 UTCm62611 35.53NAVD881SUSGSSA
2000-03-2113:45 UTCm7201960.36  1SUSGSSA
2001-03-2118:10 UTCm62610 38.08NGVD291SUSGSSA
2001-03-2118:10 UTCm62611 36.97NAVD881SUSGSSA
2001-03-2118:10 UTCm7201958.92  1SUSGSSA
2003-03-2715:47 UTCm62610 37.29NGVD291SUSGSSA
2003-03-2715:47 UTCm62611 36.18NAVD881SUSGSSA
2003-03-2715:47 UTCm7201959.71  1SUSGSSA
2004-04-0814:45 UTCm62610 40.21NGVD291SUSGSSA
2004-04-0814:45 UTCm62611 39.10NAVD881SUSGSSA
2004-04-0814:45 UTCm7201956.79  1SUSGSSA
2005-03-3114:30 UTCm62610 43.57NGVD291SUSGSSA
2005-03-3114:30 UTCm62611 42.46NAVD881SUSGSSA
2005-03-3114:30 UTCm7201953.43  1SUSGSSA
2006-04-1214:10 UTCm62610 45.03NGVD291SUSGSSA
2006-04-1214:10 UTCm62611 43.92NAVD881SUSGSSA
2006-04-1214:10 UTCm7201951.97  1SUSGSSA
2008-04-1514:37 UTCm62610 45.71NGVD291SUSGSSA
2008-04-1514:37 UTCm62611 44.60NAVD881SUSGSSA
2008-04-1514:37 UTCm7201951.29  1SUSGSSA
2009-04-0613:38 UTCm62610 44.77NGVD291SUSGSSA
2009-04-0613:38 UTCm62611 43.66NAVD881SUSGSSA
2009-04-0613:38 UTCm7201952.23  1SUSGSSA
2010-04-1415:42 UTCm62610 49.65NGVD291TUSGSSA
2010-04-1415:42 UTCm62611 48.54NAVD881TUSGSSA
2010-04-1415:42 UTCm7201947.35  1TUSGSSA
2011-04-0514:57 UTCm62610 45.86NGVD291S  A
2011-04-0514:57 UTCm62611 44.75NAVD881S  A
2011-04-0514:57 UTCm7201951.14  1S  A
2013-04-3014:34 UTCm62610 45.99NGVD291S  A
2013-04-3014:34 UTCm62611 44.88NAVD881S  A
2013-04-3014:34 UTCm7201951.01  1S  A
2015-04-2314:13 UTCm62610 46.65NGVD291SUSGSSA
2015-04-2314:13 UTCm62611 45.54NAVD881SUSGSSA
2015-04-2314:13 UTCm7201950.35  1SUSGSSA
2016-04-2215:00 UTCm62610 45.38NGVD291SUSGSSA
2016-04-2215:00 UTCm62611 44.27NAVD881SUSGSSA
2016-04-2215:00 UTCm7201951.62  1SUSGSSA
2017-04-1114:25 UTCm62610 42.42NGVD291SUSGSSA
2017-04-1114:25 UTCm62611 41.31NAVD881SUSGSSA
2017-04-1114:25 UTCm7201954.58  1SUSGSSA
2018-04-1013:55 UTCm62610 45.73NGVD291SUSGSSA
2018-04-1013:55 UTCm62611 44.62NAVD881SUSGSSA
2018-04-1013:55 UTCm7201951.27  1SUSGSSA
2019-04-0913:56 UTCm62610 47.37NGVD291SUSGSSA
2019-04-0913:56 UTCm62611 46.26NAVD881SUSGSSA
2019-04-0913:56 UTCm7201949.63  1SUSGSSA
2020-09-3014:00 UTCm62610 46.95NGVD291VUSGSSA
2020-09-3014:00 UTCm62611 45.84NAVD881VUSGSSA
2020-09-3014:00 UTCm7201950.05  1VUSGSSA
2023-04-1314:29 UTCm62610 37.42NGVD291VUSGSSA
2023-04-1314:29 UTCm62611 36.31NAVD881VUSGSSA
2023-04-1314:29 UTCm7201959.58  1VUSGSSA
2024-05-0814:39 UTCm62610 42.31NGVD291VUSGSSA
2024-05-0814:39 UTCm62611 41.20NAVD881VUSGSSA
2024-05-0814:39 UTCm7201954.69  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
StatusPPumping
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.