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Groundwater levels for the Nation

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USGS 404810073391203 N 1877. 1

Nassau County, New York
Latitude  40°48'10", Longitude  73°39'12" NAD27
Land-surface elevation 20.0 feet above NGVD29
The depth of the well is 555 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 Lloyd Aquifer (211LLYD) 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
1946-01-11 D62610 18.10NGVD291OUSGSSA
1946-01-11 D62611 17.01NAVD881OUSGSSA
1946-01-11 D720191.90  1OUSGSSA
1947-03-22 D62610 18.79NGVD291OUSGSSA
1947-03-22 D62611 17.70NAVD881OUSGSSA
1947-03-22 D720191.21  1OUSGSSA
1948-04-13 D62610 18.71NGVD291OUSGSSA
1948-04-13 D62611 17.62NAVD881OUSGSSA
1948-04-13 D720191.29  1OUSGSSA
1950-03-14 D62610 16.38NGVD291OUSGSSA
1950-03-14 D62611 15.29NAVD881OUSGSSA
1950-03-14 D720193.62  1OUSGSSA
1952-04-07 D62610 17.27NGVD291OUSGSSA
1952-04-07 D62611 16.18NAVD881OUSGSSA
1952-04-07 D720192.73  1OUSGSSA
1953-04-22 D62610 15.42NGVD291OUSGSSA
1953-04-22 D62611 14.33NAVD881OUSGSSA
1953-04-22 D720194.58  1OUSGSSA
1955-04-26 D62610 18.64NGVD291OUSGSSA
1955-04-26 D62611 17.55NAVD881OUSGSSA
1955-04-26 D720191.36  1OUSGSSA
1955-05-12 D62610 19.52NGVD291OUSGSSA
1955-05-12 D62611 18.43NAVD881OUSGSSA
1955-05-12 D720190.48  1OUSGSSA
1955-07-28 D62610 9.48NGVD291OUSGSSA
1955-07-28 D62611 8.39NAVD881OUSGSSA
1955-07-28 D7201910.52  1OUSGSSA
1955-10-04 D62610 13.94NGVD291OUSGSSA
1955-10-04 D62611 12.85NAVD881OUSGSSA
1955-10-04 D720196.06  1OUSGSSA
1956-01-04 D62610 18.18NGVD291OUSGSSA
1956-01-04 D62611 17.09NAVD881OUSGSSA
1956-01-04 D720191.82  1OUSGSSA
1956-04-03 D62610 17.99NGVD291OUSGSSA
1956-04-03 D62611 16.90NAVD881OUSGSSA
1956-04-03 D720192.01  1OUSGSSA
1956-09-14 D62610 15.42NGVD291OUSGSSA
1956-09-14 D62611 14.33NAVD881OUSGSSA
1956-09-14 D720194.58  1OUSGSSA
1956-11-07 D62610 18.25NGVD291OUSGSSA
1956-11-07 D62611 17.16NAVD881OUSGSSA
1956-11-07 D720191.75  1OUSGSSA
1957-03-13 D62610 19.73NGVD291OUSGSSA
1957-03-13 D62611 18.64NAVD881OUSGSSA
1957-03-13 D720190.27  1OUSGSSA
1961-03-14 D62610 20.60NGVD291OUSGSSA
1961-03-14 D62611 19.51NAVD881OUSGSSA
1961-03-14 D72019-0.60  1OUSGSSA
1964-12-21 D62610 17.02NGVD291OUSGSSA
1964-12-21 D62611 15.93NAVD881OUSGSSA
1964-12-21 D720192.98  1OUSGSSA
1971-01-14 D62610 25.14NGVD291OUSGSSA
1971-01-14 D62611 24.05NAVD881OUSGSSA
1971-01-14 D72019-5.14  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.