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Groundwater levels for the Nation

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Agency code = usgs
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  • 404247073421001
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USGS 404247073421001 N 1107. 2

Nassau County, New York
Latitude  40°42'47", Longitude  73°42'10" NAD27
Land-surface elevation 67.0 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
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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
1957-10-21 D62610 37.41NGVD291OUSGSSA
1957-10-21 D62611 36.30NAVD881OUSGSSA
1957-10-21 D7201929.59  1OUSGSSA
1958-04-17 D62610 39.56NGVD291OUSGSSA
1958-04-17 D62611 38.45NAVD881OUSGSSA
1958-04-17 D7201927.44  1OUSGSSA
1958-11-20 D62610 40.18NGVD291OUSGSSA
1958-11-20 D62611 39.07NAVD881OUSGSSA
1958-11-20 D7201926.82  1OUSGSSA
1959-05-04 D62610 38.38NGVD291OUSGSSA
1959-05-04 D62611 37.27NAVD881OUSGSSA
1959-05-04 D7201928.62  1OUSGSSA
1959-10-07 D62610 35.77NGVD291OUSGSSA
1959-10-07 D62611 34.66NAVD881OUSGSSA
1959-10-07 D7201931.23  1OUSGSSA
1960-06-01 D62610 36.27NGVD291OUSGSSA
1960-06-01 D62611 35.16NAVD881OUSGSSA
1960-06-01 D7201930.73  1OUSGSSA
1960-11-15 D62610 36.24NGVD291OUSGSSA
1960-11-15 D62611 35.13NAVD881OUSGSSA
1960-11-15 D7201930.76  1OUSGSSA
1961-07-11 D62610 36.05NGVD291OUSGSSA
1961-07-11 D62611 34.94NAVD881OUSGSSA
1961-07-11 D7201930.95  1OUSGSSA
1961-10-09 D62610 35.67NGVD291OUSGSSA
1961-10-09 D62611 34.56NAVD881OUSGSSA
1961-10-09 D7201931.33  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.