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Groundwater levels for the Nation

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Agency code = usgs
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  • 404040073433401
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USGS 404040073433401 N 1625. 1

Nassau County, New York
Latitude  40°40'40", Longitude  73°43'34" NAD27
Land-surface elevation 38.0 feet above NGVD29
The depth of the well is 37 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
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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
1979-06-01 D62610 6.64NGVD291OUSGSSA
1979-06-01 D62611 5.53NAVD881OUSGSSA
1979-06-01 D7201931.36  1OUSGSSA
1979-09-19 D62610 5.84NGVD291OUSGSSA
1979-09-19 D62611 4.73NAVD881OUSGSSA
1979-09-19 D7201932.16  1OUSGSSA
1979-12-05 D62610 5.79NGVD291OUSGSSA
1979-12-05 D62611 4.68NAVD881OUSGSSA
1979-12-05 D7201932.21  1OUSGSSA
1980-03-21 D62610 5.09NGVD291OUSGSSA
1980-03-21 D62611 3.98NAVD881OUSGSSA
1980-03-21 D7201932.91  1OUSGSSA
1980-05-30 D62610 6.94NGVD291OUSGSSA
1980-05-30 D62611 5.83NAVD881OUSGSSA
1980-05-30 D7201931.06  1OUSGSSA
1980-09-03 D62610 7.44NGVD291OUSGSSA
1980-09-03 D62611 6.33NAVD881OUSGSSA
1980-09-03 D7201930.56  1OUSGSSA
1980-12-15 D62610 3.72NGVD291OUSGSSA
1980-12-15 D62611 2.61NAVD881OUSGSSA
1980-12-15 D7201934.28  1OUSGSSA
1981-03-04 D62610 3.29NGVD291OUSGSSA
1981-03-04 D62611 2.18NAVD881OUSGSSA
1981-03-04 D7201934.71  1OUSGSSA
1981-06-18 D62610 2.92NGVD291OUSGSSA
1981-06-18 D62611 1.81NAVD881OUSGSSA
1981-06-18 D7201935.08  1OUSGSSA
1981-10-08 D62610 1.69NGVD291OUSGSSA
1981-10-08 D62611 0.58NAVD881OUSGSSA
1981-10-08 D7201936.31  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.