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Groundwater levels for the Nation

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Agency code = usgs
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  • 404943073392601
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USGS 404943073392601 N 12522. 1

Nassau County, New York
Latitude  40°49'44.9", Longitude  73°39'31.4" NAD83
Land-surface elevation 32 feet above NAVD88
The depth of the well is 230 feet below land surface.
Output formats
Table of data
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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
2010-04-2716:42 UTCm62610 18.32NGVD291S  A
2010-04-2716:42 UTCm62611 17.23NAVD881S  A
2010-04-2716:42 UTCm7201914.77  1S  A
2013-05-1520:12 UTCm62610 15.96NGVD294S  A
2013-05-1520:12 UTCm62611 14.87NAVD884S  A
2013-05-1520:12 UTCm7201917.13  4S  A
2013-07-2921:16 UTCm62610 16.02NGVD294SUSGSSA
2013-07-2921:16 UTCm62611 14.93NAVD884SUSGSSA
2013-07-2921:16 UTCm7201917.07  4SUSGSSA
2014-04-1718:28 UTCm62610 16.33NGVD294SUSGSSA
2014-04-1718:28 UTCm62611 15.24NAVD884SUSGSSA
2014-04-1718:28 UTCm7201916.76  4SUSGSSA
2015-04-1715:40 UTCm62610 16.82NGVD294TUSGSSA
2015-04-1715:40 UTCm62611 15.73NAVD884TUSGSSA
2015-04-1715:40 UTCm7201916.27  4TUSGSSA
2016-04-1816:46 UTCm62610 15.54NGVD291SUSGSSA
2016-04-1816:46 UTCm62611 14.45NAVD881SUSGSSA
2016-04-1816:46 UTCm7201917.55  1SUSGSSA
2017-04-2417:15 UTCm62610 13.37NGVD291SUSGSSA
2017-04-2417:15 UTCm62611 12.28NAVD881SUSGSSA
2017-04-2417:15 UTCm7201919.72  1SUSGSSA
2019-04-1816:36 UTCm62610 17.38NGVD291VUSGSSA
2019-04-1816:36 UTCm62611 16.29NAVD881VUSGSSA
2019-04-1816:36 UTCm7201915.71  1VUSGSSA
2020-11-0418:13 UTCm62610 15.63NGVD291VUSGSSA
2020-11-0418:13 UTCm62611 14.54NAVD881VUSGSSA
2020-11-0418:13 UTCm7201917.46  1VUSGSSA
2021-04-2715:40 UTCm62610 14.96NGVD291VUSGSSA
2021-04-2715:40 UTCm62611 13.87NAVD881VUSGSSA
2021-04-2715:40 UTCm7201918.13  1VUSGSSA
2022-05-1616:37 UTCm62610 16.94NGVD291VUSGSSA
2022-05-1616:37 UTCm62611 15.85NAVD881VUSGSSA
2022-05-1616:37 UTCm7201916.15  1VUSGSSA
2023-04-1713:28 UTCm62610 16.07NGVD294VUSGSSA
2023-04-1713:28 UTCm62611 14.98NAVD884VUSGSSA
2023-04-1713:28 UTCm7201917.02  4VUSGSSA
2024-05-0312:18 UTCm62610 18.28NGVD294VUSGSSP
2024-05-0312:18 UTCm62611 17.19NAVD884VUSGSSP
2024-05-0312:18 UTCm7201914.81  4VUSGSSP

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 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.
Water-level approval statusPProvisional data subject to revision.