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Groundwater levels for the Nation

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Agency code = usgs
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  • 404445073365104
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USGS 404445073365104 N 2748. 1

Nassau County, New York
Latitude  40°44'45", Longitude  73°36'51" NAD27
Land-surface elevation 94.0 feet above NGVD29
The depth of the well is 551 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 Magothy Aquifer (211MAGT) 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
1948-11-20 D62610 73.30NGVD291OUSGSSA
1948-11-20 D62611 72.15NAVD881OUSGSSA
1948-11-20 D7201920.70  1OUSGSSA
1948-11-27 D62610 73.30NGVD291OUSGSSA
1948-11-27 D62611 72.15NAVD881OUSGSSA
1948-11-27 D7201920.70  1OUSGSSA
1948-12-04 D62610 73.20NGVD291OUSGSSA
1948-12-04 D62611 72.05NAVD881OUSGSSA
1948-12-04 D7201920.80  1OUSGSSA
1948-12-11 D62610 73.10NGVD291OUSGSSA
1948-12-11 D62611 71.95NAVD881OUSGSSA
1948-12-11 D7201920.90  1OUSGSSA
1948-12-18 D62610 73.00NGVD291OUSGSSA
1948-12-18 D62611 71.85NAVD881OUSGSSA
1948-12-18 D7201921.00  1OUSGSSA
1948-12-24 D62610 73.00NGVD291OUSGSSA
1948-12-24 D62611 71.85NAVD881OUSGSSA
1948-12-24 D7201921.00  1OUSGSSA
1959-02-11 D62610 69.71NGVD291OUSGSSA
1959-02-11 D62611 68.56NAVD881OUSGSSA
1959-02-11 D7201924.29  1OUSGSSA
1964-12-20 D62610 62.22NGVD291OUSGSSA
1964-12-20 D62611 61.07NAVD881OUSGSSA
1964-12-20 D7201931.78  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.