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Groundwater levels for the Nation

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USGS 405123073404402 N 12319. 1

Nassau County, New York
Latitude  40°51'23", Longitude  73°40'44" NAD27
Land-surface elevation 62 feet above NAVD88
The depth of the well is 395 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
1993-12-2916:00 UTCm62610 12.57NGVD294OUSGSSA
1993-12-2916:00 UTCm62611 11.48NAVD884OUSGSSA
1993-12-2916:00 UTCm7201950.52  4OUSGSSA
1994-04-0121:38 UTCm62610 12.25NGVD294OUSGSSA
1994-04-0121:38 UTCm62611 11.16NAVD884OUSGSSA
1994-04-0121:38 UTCm7201950.84  4OUSGSSA
1994-06-0716:10 UTCm62610 10.70NGVD294OUSGSSA
1994-06-0716:10 UTCm62611 9.61NAVD884OUSGSSA
1994-06-0716:10 UTCm7201952.39  4OUSGSSA
1994-09-1916:25 UTCm62610 9.81NGVD294OUSGSSA
1994-09-1916:25 UTCm62611 8.72NAVD884OUSGSSA
1994-09-1916:25 UTCm7201953.28  4OUSGSSA
1994-12-1415:43 UTCm62610 11.89NGVD294OUSGSSA
1994-12-1415:43 UTCm62611 10.80NAVD884OUSGSSA
1994-12-1415:43 UTCm7201951.20  4OUSGSSA
1995-03-1616:46 UTCm62610 12.59NGVD294OUSGSSA
1995-03-1616:46 UTCm62611 11.50NAVD884OUSGSSA
1995-03-1616:46 UTCm7201950.50  4OUSGSSA
1995-06-1317:40 UTCm62610 10.77NGVD294OUSGSSA
1995-06-1317:40 UTCm62611 9.68NAVD884OUSGSSA
1995-06-1317:40 UTCm7201952.32  4OUSGSSA
1995-08-2316:33 UTCm62610 8.13NGVD294OUSGSSA
1995-08-2316:33 UTCm62611 7.04NAVD884OUSGSSA
1995-08-2316:33 UTCm7201954.96  4OUSGSSA
1995-12-0517:05 UTCm62610 11.47NGVD294OUSGSSA
1995-12-0517:05 UTCm62611 10.38NAVD884OUSGSSA
1995-12-0517:05 UTCm7201951.62  4OUSGSSA
1996-03-1916:51 UTCm62610 12.51NGVD294OUSGSSA
1996-03-1916:51 UTCm62611 11.42NAVD884OUSGSSA
1996-03-1916:51 UTCm7201950.58  4OUSGSSA
1996-05-1516:34 UTCm62610 11.64NGVD294OUSGSSA
1996-05-1516:34 UTCm62611 10.55NAVD884OUSGSSA
1996-05-1516:34 UTCm7201951.45  4OUSGSSA
1996-12-1116:21 UTCm62610 12.74NGVD294OUSGSSA
1996-12-1116:21 UTCm62611 11.65NAVD884OUSGSSA
1996-12-1116:21 UTCm7201950.35  4OUSGSSA
1997-03-1017:30 UTCm62610 13.41NGVD294OUSGSSA
1997-03-1017:30 UTCm62611 12.32NAVD884OUSGSSA
1997-03-1017:30 UTCm7201949.68  4OUSGSSA
2002-03-2715:23 UTCm62610 12.76NGVD291SUSGSSA
2002-03-2715:23 UTCm62611 11.67NAVD881SUSGSSA
2002-03-2715:23 UTCm7201950.33  1SUSGSSA
2003-04-0217:07 UTCm62610 12.26NGVD294SUSGSSA
2003-04-0217:07 UTCm62611 11.17NAVD884SUSGSSA
2003-04-0217:07 UTCm7201950.83  4SUSGSSA
2004-03-2318:55 UTCm62610 11.28NGVD294SUSGSSA
2004-03-2318:55 UTCm62611 10.19NAVD884SUSGSSA
2004-03-2318:55 UTCm7201951.81  4SUSGSSA
2005-03-2415:33 UTCm62610 12.98NGVD294SUSGSSA
2005-03-2415:33 UTCm62611 11.89NAVD884SUSGSSA
2005-03-2415:33 UTCm7201950.11  4SUSGSSA
2013-07-3017:06 UTCm62610 7.70NGVD291TUSGSSA
2013-07-3017:06 UTCm62611 6.61NAVD881TUSGSSA
2013-07-3017:06 UTCm7201955.39  1TUSGSSA
2013-07-3023:28 UTCm62610 10.57NGVD294TUSGSSA
2013-07-3023:28 UTCm62611 9.48NAVD884TUSGSSA
2013-07-3023:28 UTCm7201952.52  4TUSGSSA
2016-05-2315:11 UTCm62610 11.00NGVD291TUSGSSA
2016-05-2315:11 UTCm62611 9.91NAVD881TUSGSSA
2016-05-2315:11 UTCm7201952.09  1TUSGSSA
2019-04-1819:13 UTCm62610 12.70NGVD291VUSGSSA
2019-04-1819:13 UTCm62611 11.61NAVD881VUSGSSA
2019-04-1819:13 UTCm7201950.39  1VUSGSSA
2020-11-2016:55 UTCm62610 10.00NGVD291VUSGSSA
2020-11-2016:55 UTCm62611 8.91NAVD881VUSGSSA
2020-11-2016:55 UTCm7201953.09  1VUSGSSA
2021-04-2716:18 UTCm62610 12.71NGVD291VUSGSSA
2021-04-2716:18 UTCm62611 11.62NAVD881VUSGSSA
2021-04-2716:18 UTCm7201950.38  1VUSGSSA
2022-05-2616:08 UTCm62610 12.55NGVD291VUSGSSA
2022-05-2616:08 UTCm62611 11.46NAVD881VUSGSSA
2022-05-2616:08 UTCm7201950.54  1VUSGSSA
2023-04-1715:34 UTCm62610 13.50NGVD291VUSGSSA
2023-04-1715:34 UTCm62611 12.41NAVD881VUSGSSA
2023-04-1715:34 UTCm7201949.59  1VUSGSSA
2024-05-0313:34 UTCm62610 14.23NGVD291VUSGSSA
2024-05-0313:34 UTCm62611 13.14NAVD881VUSGSSA
2024-05-0313:34 UTCm7201948.86  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 agencyUSGSU.S. Geological Survey
Source of measurementSMeasured by personnel of reporting agency.
Water-level approval statusAApproved for publication -- Processing and review completed.