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Groundwater levels for the Nation

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Agency code = usgs
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  • 404840073453501
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USGS 404840073453501 N 9271. 1

Nassau County, New York
Latitude  40°48'40", Longitude  73°45'35" NAD27
Land-surface elevation 50.0 feet above NGVD29
The depth of the well is 88 feet below land surface.
The depth of the hole is 99 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 Glacial Aquifer, Upper (112GLCLU) local aquifer.
Output formats
Table of data
Tab-separated data
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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
1991-11-0415:46 UTCm62610 18.74NGVD291OUSGSSA
1991-11-0415:46 UTCm62611 17.66NAVD881OUSGSSA
1991-11-0415:46 UTCm7201931.26  1OUSGSSA
1992-04-0115:40 UTCm62610 18.87NGVD294OUSGSSA
1992-04-0115:40 UTCm62611 17.79NAVD884OUSGSSA
1992-04-0115:40 UTCm7201931.13  4OUSGSSA
1992-05-1919:24 UTCm62610 18.58NGVD294OUSGSSA
1992-05-1919:24 UTCm62611 17.50NAVD884OUSGSSA
1992-05-1919:24 UTCm7201931.42  4OUSGSSA
1992-08-2513:51 UTCm62610 17.92NGVD294OUSGSSA
1992-08-2513:51 UTCm62611 16.84NAVD884OUSGSSA
1992-08-2513:51 UTCm7201932.08  4OUSGSSA
1992-12-0815:47 UTCm62610 18.09NGVD291OUSGSSA
1992-12-0815:47 UTCm62611 17.01NAVD881OUSGSSA
1992-12-0815:47 UTCm7201931.91  1OUSGSSA
1993-03-2519:00 UTCm62610 19.10NGVD294OUSGSSA
1993-03-2519:00 UTCm62611 18.02NAVD884OUSGSSA
1993-03-2519:00 UTCm7201930.90  4OUSGSSA
1993-06-1816:24 UTCm62610 19.26NGVD294OUSGSSA
1993-06-1816:24 UTCm62611 18.18NAVD884OUSGSSA
1993-06-1816:24 UTCm7201930.74  4OUSGSSA
1993-09-3018:10 UTCm62610 18.66NGVD294OUSGSSA
1993-09-3018:10 UTCm62611 17.58NAVD884OUSGSSA
1993-09-3018:10 UTCm7201931.34  4OUSGSSA
1993-12-2817:05 UTCm62610 18.67NGVD294OUSGSSA
1993-12-2817:05 UTCm62611 17.59NAVD884OUSGSSA
1993-12-2817:05 UTCm7201931.33  4OUSGSSA
1994-03-3019:13 UTCm62610 19.14NGVD294OUSGSSA
1994-03-3019:13 UTCm62611 18.06NAVD884OUSGSSA
1994-03-3019:13 UTCm7201930.86  4OUSGSSA
1994-06-0817:30 UTCm62610 19.35NGVD294OUSGSSA
1994-06-0817:30 UTCm62611 18.27NAVD884OUSGSSA
1994-06-0817:30 UTCm7201930.65  4OUSGSSA
1994-09-2017:29 UTCm62610 18.80NGVD294OUSGSSA
1994-09-2017:29 UTCm62611 17.72NAVD884OUSGSSA
1994-09-2017:29 UTCm7201931.20  4OUSGSSA
1994-12-1616:05 UTCm62610 18.78NGVD294OUSGSSA
1994-12-1616:05 UTCm62611 17.70NAVD884OUSGSSA
1994-12-1616:05 UTCm7201931.22  4OUSGSSA
1995-03-1515:15 UTCm62610 19.08NGVD294OUSGSSA
1995-03-1515:15 UTCm62611 18.00NAVD884OUSGSSA
1995-03-1515:15 UTCm7201930.92  4OUSGSSA
1995-06-1418:15 UTCm62610 18.69NGVD294OUSGSSA
1995-06-1418:15 UTCm62611 17.61NAVD884OUSGSSA
1995-06-1418:15 UTCm7201931.31  4OUSGSSA
1995-08-2416:00 UTCm62610 18.42NGVD294OUSGSSA
1995-08-2416:00 UTCm62611 17.34NAVD884OUSGSSA
1995-08-2416:00 UTCm7201931.58  4OUSGSSA
1995-12-0415:45 UTCm62610 18.39NGVD294OUSGSSA
1995-12-0415:45 UTCm62611 17.31NAVD884OUSGSSA
1995-12-0415:45 UTCm7201931.61  4OUSGSSA
1996-03-2219:06 UTCm62610 18.88NGVD294OUSGSSA
1996-03-2219:06 UTCm62611 17.80NAVD884OUSGSSA
1996-03-2219:06 UTCm7201931.12  4OUSGSSA
1996-05-1616:41 UTCm62610 19.32NGVD294OUSGSSA
1996-05-1616:41 UTCm62611 18.24NAVD884OUSGSSA
1996-05-1616:41 UTCm7201930.68  4OUSGSSA
1996-09-1015:31 UTCm62610 18.90NGVD294OUSGSSA
1996-09-1015:31 UTCm62611 17.82NAVD884OUSGSSA
1996-09-1015:31 UTCm7201931.10  4OUSGSSA
2013-07-2921:27 UTCm62610 19.99NGVD294VUSGSSA
2013-07-2921:27 UTCm62611 18.91NAVD884VUSGSSA
2013-07-2921:27 UTCm7201930.01  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
Status4GWTideAffected
Method of measurementOObserved.
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.