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Groundwater levels for the Nation

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Agency code = usgs
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  • 404708073450301
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USGS 404708073450301 N 11730. 1

Nassau County, New York
Latitude  40°47'07.9", Longitude  73°45'00.7" NAD83
Land-surface elevation 8.0 feet above NGVD29
The depth of the well is 344 feet below land surface.
The depth of the hole is 383 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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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
1992-05-2018:10 UTCm62610 5.25NGVD294OUSGSSA
1992-05-2018:10 UTCm62611 4.17NAVD884OUSGSSA
1992-05-2018:10 UTCm720192.75  4OUSGSSA
1992-08-2513:50 UTCm62610 -18.53NGVD294OUSGSSA
1992-08-2513:50 UTCm62611 -19.61NAVD884OUSGSSA
1992-08-2513:50 UTCm7201926.53  4OUSGSSA
1992-12-0814:51 UTCm62610 7.27NGVD294OUSGSSA
1992-12-0814:51 UTCm62611 6.19NAVD884OUSGSSA
1992-12-0814:51 UTCm720190.73  4OUSGSSA
1993-03-2517:31 UTCm62610 7.25NGVD294OUSGSSA
1993-03-2517:31 UTCm62611 6.17NAVD884OUSGSSA
1993-03-2517:31 UTCm720190.75  4OUSGSSA
1993-05-0212:52 UTCm62610 2.69NGVD294OUSGSSA
1993-05-0212:52 UTCm62611 1.61NAVD884OUSGSSA
1993-05-0212:52 UTCm720195.31  4OUSGSSA
1993-06-1816:19 UTCm62610 -19.48NGVD294OUSGSSA
1993-06-1816:19 UTCm62611 -20.56NAVD884OUSGSSA
1993-06-1816:19 UTCm7201927.48  4OUSGSSA
1993-09-3016:55 UTCm62610 -13.28NGVD294OUSGSSA
1993-09-3016:55 UTCm62611 -14.36NAVD884OUSGSSA
1993-09-3016:55 UTCm7201921.28  4OUSGSSA
1993-12-2918:05 UTCm62610 -4.81NGVD294OUSGSSA
1993-12-2918:05 UTCm62611 -5.89NAVD884OUSGSSA
1993-12-2918:05 UTCm7201912.81  4OUSGSSA
1994-03-3018:46 UTCm62610 7.30NGVD294OUSGSSA
1994-03-3018:46 UTCm62611 6.22NAVD884OUSGSSA
1994-03-3018:46 UTCm720190.70  4OUSGSSA
1994-06-0817:50 UTCm62610 -13.81NGVD294OUSGSSA
1994-06-0817:50 UTCm62611 -14.89NAVD884OUSGSSA
1994-06-0817:50 UTCm7201921.81  4OUSGSSA
1994-09-2016:57 UTCm62610 -2.48NGVD294OUSGSSA
1994-09-2016:57 UTCm62611 -3.56NAVD884OUSGSSA
1994-09-2016:57 UTCm7201910.48  4OUSGSSA
1994-12-1617:00 UTCm62610 9.92NGVD294OUSGSSA
1994-12-1617:00 UTCm62611 8.84NAVD884OUSGSSA
1994-12-1617:00 UTCm72019-1.92  4OUSGSSA
1995-03-1514:39 UTCm62610 5.47NGVD294OUSGSSA
1995-03-1514:39 UTCm62611 4.39NAVD884OUSGSSA
1995-03-1514:39 UTCm720192.53  4OUSGSSA
1995-06-1417:50 UTCm62610 8.45NGVD294OUSGSSA
1995-06-1417:50 UTCm62611 7.37NAVD884OUSGSSA
1995-06-1417:50 UTCm72019-0.45  4OUSGSSA
1995-08-2416:24 UTCm62610 -19.42NGVD294OUSGSSA
1995-08-2416:24 UTCm62611 -20.50NAVD884OUSGSSA
1995-08-2416:24 UTCm7201927.42  4OUSGSSA
1995-12-0415:15 UTCm62610 -2.34NGVD294OUSGSSA
1995-12-0415:15 UTCm62611 -3.42NAVD884OUSGSSA
1995-12-0415:15 UTCm7201910.34  4OUSGSSA
1996-03-2218:42 UTCm62610 -16.13NGVD294OUSGSSA
1996-03-2218:42 UTCm62611 -17.21NAVD884OUSGSSA
1996-03-2218:42 UTCm7201924.13  4OUSGSSA
1996-05-1617:03 UTCm62610 -2.71NGVD294OUSGSSA
1996-05-1617:03 UTCm62611 -3.79NAVD884OUSGSSA
1996-05-1617:03 UTCm7201910.71  4OUSGSSA
1996-09-1015:08 UTCm62610 3.82NGVD294OUSGSSA
1996-09-1015:08 UTCm62611 2.74NAVD884OUSGSSA
1996-09-1015:08 UTCm720194.18  4OUSGSSA
2010-04-2614:22 UTCm62610 13.25NGVD294SUSGSSA
2010-04-2614:22 UTCm62611 12.17NAVD884SUSGSSA
2010-04-2614:22 UTCm72019-5.25  4SUSGSSA
2013-04-2616:24 UTCm62610 -3.74NGVD294SUSGSSA
2013-04-2616:24 UTCm62611 -4.82NAVD884SUSGSSA
2013-04-2616:24 UTCm7201911.74  4SUSGSSA
2013-07-2921:45 UTCm62610 -14.33NGVD294VUSGSSA
2013-07-2921:45 UTCm62611 -15.41NAVD884VUSGSSA
2013-07-2921:45 UTCm7201922.33  4VUSGSSA
2014-04-1817:37 UTCm62610 9.63NGVD294S  A
2014-04-1817:37 UTCm62611 8.55NAVD884S  A
2014-04-1817:37 UTCm72019-1.63  4S  A
2015-04-1515:45 UTCm62610 10.96NGVD294SUSGSSA
2015-04-1515:45 UTCm62611 9.88NAVD884SUSGSSA
2015-04-1515:45 UTCm72019-2.96  4SUSGSSA
2017-04-2617:42 UTCm62610 2.70NGVD291SUSGSSA
2017-04-2617:42 UTCm62611 1.62NAVD881SUSGSSA
2017-04-2617:42 UTCm720195.30  1SUSGSSA
2019-04-1714:38 UTCm62610 5.46NGVD291VUSGSSA
2019-04-1714:38 UTCm62611 4.38NAVD881VUSGSSA
2019-04-1714:38 UTCm720192.54  1VUSGSSA
2020-11-0518:10 UTCm62610 8.43NGVD291SUSGSSA
2020-11-0518:10 UTCm62611 7.35NAVD881SUSGSSA
2020-11-0518:10 UTCm72019-0.43  1SUSGSSA

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
Status4GWTideAffected
Method of measurementOObserved.
Method of measurementSSteel-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.