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Groundwater levels for the Nation

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Agency code = usgs
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  • 404446073365001
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USGS 404446073365001 N 2747. 2

Nassau County, New York
Latitude  40°44'46", Longitude  73°36'50" NAD27
Land-surface elevation 92.0 feet above NGVD29
The depth of the well is 333 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
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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
1959-02-11 D62610 76.85NGVD291OUSGSSA
1959-02-11 D62611 75.70NAVD881OUSGSSA
1959-02-11 D7201915.15  1OUSGSSA
1959-02-16 D62610 74.72NGVD291OUSGSSA
1959-02-16 D62611 73.57NAVD881OUSGSSA
1959-02-16 D7201917.28  1OUSGSSA
1964-12-21 D62610 62.10NGVD291OUSGSSA
1964-12-21 D62611 60.95NAVD881OUSGSSA
1964-12-21 D7201929.90  1OUSGSSA
1982-04-1414:00 UTCm62610 61.14NGVD291OUSGSSA
1982-04-1414:00 UTCm62611 59.99NAVD881OUSGSSA
1982-04-1414:00 UTCm7201930.86  1OUSGSSA
1982-08-1914:00 UTCm62610 58.26NGVD291OUSGSSA
1982-08-1914:00 UTCm62611 57.11NAVD881OUSGSSA
1982-08-1914:00 UTCm7201933.74  1OUSGSSA
1983-03-3113:20 UTCm62610 59.71NGVD291OUSGSSA
1983-03-3113:20 UTCm62611 58.56NAVD881OUSGSSA
1983-03-3113:20 UTCm7201932.29  1OUSGSSA
1984-04-2515:40 UTCm62610 63.65NGVD291OUSGSSA
1984-04-2515:40 UTCm62611 62.50NAVD881OUSGSSA
1984-04-2515:40 UTCm7201928.35  1OUSGSSA
1985-05-1013:27 UTCm62610 62.87NGVD291OUSGSSA
1985-05-1013:27 UTCm62611 61.72NAVD881OUSGSSA
1985-05-1013:27 UTCm7201929.13  1OUSGSSA

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