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Groundwater levels for the Nation

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Agency code = usgs
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  • 404041073395304
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USGS 404041073395304 N 1130. 2

Nassau County, New York
Latitude  40°40'41", Longitude  73°39'53" NAD27
Land-surface elevation 37.0 feet above NGVD29
The depth of the well is 35 feet below land surface.
The depth of the hole is 35 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
Graph of data
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
1961-08-30 D62610 20.28NGVD291OUSGSSA
1961-08-30 D62611 19.16NAVD881OUSGSSA
1961-08-30 D7201916.72  1OUSGSSA
1961-10-10 D62610 20.17NGVD291OUSGSSA
1961-10-10 D62611 19.05NAVD881OUSGSSA
1961-10-10 D7201916.83  1OUSGSSA
1961-12-14 D62610 19.87NGVD291OUSGSSA
1961-12-14 D62611 18.75NAVD881OUSGSSA
1961-12-14 D7201917.13  1OUSGSSA
1962-03-08 D62610 20.61NGVD291OUSGSSA
1962-03-08 D62611 19.49NAVD881OUSGSSA
1962-03-08 D7201916.39  1OUSGSSA
1962-07-19 D62610 18.78NGVD291OUSGSSA
1962-07-19 D62611 17.66NAVD881OUSGSSA
1962-07-19 D7201918.22  1OUSGSSA

Explanation
SectionCodeDescription
Water-level date-time accuracyDDate is accurate to the Day
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.
Measuring agencyUSGSU.S. Geological Survey
Source of measurementSMeasured by personnel of reporting agency.
Water-level approval statusAApproved for publication -- Processing and review completed.