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Groundwater levels for the Nation

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USGS 404841073453302 N 1926. 2

Nassau County, New York
Latitude  40°48'41", Longitude  73°45'33" NAD27
Land-surface elevation 51.0 feet above NGVD29
The depth of the well is 283 feet below land surface.
The depth of the hole is 286 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
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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
1945-12-18 D62610 -1.40NGVD291OUSGSSA
1945-12-18 D62611 -2.48NAVD881OUSGSSA
1945-12-18 D7201952.40  1OUSGSSA
1947-03-22 D62610 -3.30NGVD291OUSGSSA
1947-03-22 D62611 -4.38NAVD881OUSGSSA
1947-03-22 D7201954.30  1OUSGSSA
1948-04-13 D62610 -5.92NGVD291OUSGSSA
1948-04-13 D62611 -7.00NAVD881OUSGSSA
1948-04-13 D7201956.92  1OUSGSSA
1950-02-26 D62610 0.90NGVD291OUSGSSA
1950-02-26 D62611 -0.18NAVD881OUSGSSA
1950-02-26 D7201950.10  1OUSGSSA
1954-09-27 D62610 -0.68NGVD291OUSGSSA
1954-09-27 D62611 -1.76NAVD881OUSGSSA
1954-09-27 D7201951.68  1OUSGSSA
1955-01-20 D62610 -2.89NGVD291OUSGSSA
1955-01-20 D62611 -3.97NAVD881OUSGSSA
1955-01-20 D7201953.89  1OUSGSSA
1955-04-27 D62610 1.62NGVD291OUSGSSA
1955-04-27 D62611 0.54NAVD881OUSGSSA
1955-04-27 D7201949.38  1OUSGSSA
1968-03-27 D62610 3.25NGVD291OUSGSSA
1968-03-27 D62611 2.17NAVD881OUSGSSA
1968-03-27 D7201947.75  1OUSGSSA
1968-09-09 D62610 -1.38NGVD291OUSGSSA
1968-09-09 D62611 -2.46NAVD881OUSGSSA
1968-09-09 D7201952.38  1OUSGSSA
1969-03-11 D62610 -3.50NGVD291OUSGSSA
1969-03-11 D62611 -4.58NAVD881OUSGSSA
1969-03-11 D7201954.50  1OUSGSSA
1992-08-1015:53 UTCm62610 -4.17NGVD294OUSGSSA
1992-08-1015:53 UTCm62611 -5.25NAVD884OUSGSSA
1992-08-1015:53 UTCm7201955.17  4OUSGSSA
1992-08-2513:47 UTCm62610 -3.48NGVD294OUSGSSA
1992-08-2513:47 UTCm62611 -4.56NAVD884OUSGSSA
1992-08-2513:47 UTCm7201954.48  4OUSGSSA
1992-12-0815:51 UTCm62610 7.06NGVD294OUSGSSA
1992-12-0815:51 UTCm62611 5.98NAVD884OUSGSSA
1992-12-0815:51 UTCm7201943.94  4OUSGSSA
1993-03-2519:08 UTCm62610 7.26NGVD294OUSGSSA
1993-03-2519:08 UTCm62611 6.18NAVD884OUSGSSA
1993-03-2519:08 UTCm7201943.74  4OUSGSSA
1993-05-0212:33 UTCm62610 3.65NGVD294OUSGSSA
1993-05-0212:33 UTCm62611 2.57NAVD884OUSGSSA
1993-05-0212:33 UTCm7201947.35  4OUSGSSA
1993-06-1816:29 UTCm62610 -2.94NGVD294OUSGSSA
1993-06-1816:29 UTCm62611 -4.02NAVD884OUSGSSA
1993-06-1816:29 UTCm7201953.94  4OUSGSSA
1993-09-3018:21 UTCm62610 2.68NGVD294OUSGSSA
1993-09-3018:21 UTCm62611 1.60NAVD884OUSGSSA
1993-09-3018:21 UTCm7201948.32  4OUSGSSA
1993-12-2817:10 UTCm62610 4.38NGVD294OUSGSSA
1993-12-2817:10 UTCm62611 3.30NAVD884OUSGSSA
1993-12-2817:10 UTCm7201946.62  4OUSGSSA
1994-03-3019:20 UTCm62610 7.45NGVD294OUSGSSA
1994-03-3019:20 UTCm62611 6.37NAVD884OUSGSSA
1994-03-3019:20 UTCm7201943.55  4OUSGSSA

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
Status4Groundwater level affected by tide
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.