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Groundwater levels for the Nation

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Agency code = usgs
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  • 404516073335801
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USGS 404516073335801 N 11850. 1

Nassau County, New York
Latitude  40°45'16", Longitude  73°33'58" NAD27
Land-surface elevation 118.8 feet above NGVD29
The depth of the well is 65 feet below land surface.
The depth of the hole is 65 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
1991-08-2617:10 UTCm62610 73.45NGVD291OUSGSSA
1991-08-2617:10 UTCm62611 72.29NAVD881OUSGSSA
1991-08-2617:10 UTCm7201945.35  1OUSGSSA
2006-08-1717:15 UTCm62610 71.55NGVD291TUSGSSA
2006-08-1717:15 UTCm62611 70.39NAVD881TUSGSSA
2006-08-1717:15 UTCm7201947.25  1TUSGSSA
2008-07-2214:30 UTCm62610 72.20NGVD291SUSGSSA
2008-07-2214:30 UTCm62611 71.04NAVD881SUSGSSA
2008-07-2214:30 UTCm7201946.60  1SUSGSSA
2009-07-2313:35 UTCm62610 73.09NGVD291SUSGSSA
2009-07-2313:35 UTCm62611 71.93NAVD881SUSGSSA
2009-07-2313:35 UTCm7201945.71  1SUSGSSA
2010-07-2211:50 UTCm62610 75.06NGVD291S  A
2010-07-2211:50 UTCm62611 73.90NAVD881S  A
2010-07-2211:50 UTCm7201943.74  1S  A
2011-07-1513:50 UTCm62610 73.63NGVD291S  A
2011-07-1513:50 UTCm62611 72.47NAVD881S  A
2011-07-1513:50 UTCm7201945.17  1S  A
2012-07-1714:00 UTCm62610 74.67NGVD291S  A
2012-07-1714:00 UTCm62611 73.51NAVD881S  A
2012-07-1714:00 UTCm7201944.13  1S  A
2016-11-1818:00 UTCm62610 68.48NGVD291TUSGSSA
2016-11-1818:00 UTCm62611 67.32NAVD881TUSGSSA
2016-11-1818:00 UTCm7201950.32  1TUSGSSA
2017-09-2719:30 UTCm62610 68.36NGVD291S  A
2017-09-2719:30 UTCm62611 67.20NAVD881S  A
2017-09-2719:30 UTCm7201950.44  1S  A

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
Method of measurementOObserved.
Method of measurementSSteel-tape measurement.
Method of measurementTElectric-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.