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Groundwater levels for the Nation

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Agency code = usgs
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  • 404425073424801
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USGS 404425073424801 N 1958. 1

Nassau County, New York
Latitude  40°44'26", Longitude  73°41'48" NAD27
Land-surface elevation 116.9 feet above NGVD29
The depth of the well is 737 feet below land surface.
The depth of the hole is 757 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
Graph of data
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
1946-01-25 D62610 7.85NGVD291OUSGSSA
1946-01-25 D62611 6.75NAVD881OUSGSSA
1946-01-25 D72019109.05  1OUSGSSA
1947-04-02 D62610 6.39NGVD291OUSGSSA
1947-04-02 D62611 5.29NAVD881OUSGSSA
1947-04-02 D72019110.51  1OUSGSSA
1948-03-30 D62610 6.78NGVD291OUSGSSA
1948-03-30 D62611 5.68NAVD881OUSGSSA
1948-03-30 D72019110.12  1OUSGSSA
1949-04-22 D62610 7.24NGVD291OUSGSSA
1949-04-22 D62611 6.14NAVD881OUSGSSA
1949-04-22 D72019109.66  1OUSGSSA
1952-04-18 D62610 -3.54NGVD291OUSGSSA
1952-04-18 D62611 -4.64NAVD881OUSGSSA
1952-04-18 D72019120.44  1OUSGSSA
1953-04-13 D62610 4.53NGVD291OUSGSSA
1953-04-13 D62611 3.43NAVD881OUSGSSA
1953-04-13 D72019112.37  1OUSGSSA
1953-04-16 D62610 4.50NGVD291OUSGSSA
1953-04-16 D62611 3.40NAVD881OUSGSSA
1953-04-16 D72019112.40  1OUSGSSA
1956-10-09 D62610 -1.33NGVD291OUSGSSA
1956-10-09 D62611 -2.43NAVD881OUSGSSA
1956-10-09 D72019118.23  1OUSGSSA
1956-10-10 D62610 -0.60NGVD291OUSGSSA
1956-10-10 D62611 -1.70NAVD881OUSGSSA
1956-10-10 D72019117.50  1OUSGSSA
1957-04-04 D62610 9.86NGVD291OUSGSSA
1957-04-04 D62611 8.76NAVD881OUSGSSA
1957-04-04 D72019107.04  1OUSGSSA
1958-03-14 D62610 4.30NGVD291OUSGSSA
1958-03-14 D62611 3.20NAVD881OUSGSSA
1958-03-14 D72019112.60  1OUSGSSA
1961-04-18 D62610 -5.90NGVD291OUSGSSA
1961-04-18 D62611 -7.00NAVD881OUSGSSA
1961-04-18 D72019122.80  1OUSGSSA
1962-12-08 D62610 3.80NGVD291OUSGSSA
1962-12-08 D62611 2.70NAVD881OUSGSSA
1962-12-08 D72019113.10  1OUSGSSA
1962-12-12 D62610 6.00NGVD291OUSGSSA
1962-12-12 D62611 4.90NAVD881OUSGSSA
1962-12-12 D72019110.90  1OUSGSSA
1964-12-08 D62610 16.14NGVD291OUSGSSA
1964-12-08 D62611 15.04NAVD881OUSGSSA
1964-12-08 D72019100.76  1OUSGSSA
1964-12-30 D62610 -2.49NGVD291OUSGSSA
1964-12-30 D62611 -3.59NAVD881OUSGSSA
1964-12-30 D72019119.39  1OUSGSSA
1967-09-01 D62610 -6.20NGVD291OUSGSSA
1967-09-01 D62611 -7.30NAVD881OUSGSSA
1967-09-01 D72019123.10  1OUSGSSA
1968-01-08 D62610 -2.70NGVD291OUSGSSA
1968-01-08 D62611 -3.80NAVD881OUSGSSA
1968-01-08 D72019119.60  1OUSGSSA
1970-12-15 D62610 -4.26NGVD291OUSGSSA
1970-12-15 D62611 -5.36NAVD881OUSGSSA
1970-12-15 D72019121.16  1OUSGSSA
1972-01-04 D62610 -1.88NGVD291OUSGSSA
1972-01-04 D62611 -2.98NAVD881OUSGSSA
1972-01-04 D72019118.78  1OUSGSSA
1973-01-11 D62610 -1.25NGVD291OUSGSSA
1973-01-11 D62611 -2.35NAVD881OUSGSSA
1973-01-11 D72019118.15  1OUSGSSA
1974-01-28 D62610 3.96NGVD291OUSGSSA
1974-01-28 D62611 2.86NAVD881OUSGSSA
1974-01-28 D72019112.94  1OUSGSSA
1975-01-13 D62610 -1.19NGVD291OUSGSSA
1975-01-13 D62611 -2.29NAVD881OUSGSSA
1975-01-13 D72019118.09  1OUSGSSA
1976-01-20 D62610 2.55NGVD291OUSGSSA
1976-01-20 D62611 1.45NAVD881OUSGSSA
1976-01-20 D72019114.35  1OUSGSSA
1976-01-2416:05 UTCm62610 2.75NGVD291OUSGSSA
1976-01-2416:05 UTCm62611 1.65NAVD881OUSGSSA
1976-01-2416:05 UTCm72019114.15  1OUSGSSA
1976-01-25 D62610 -1.75NGVD291OUSGSSA
1976-01-25 D62611 -2.85NAVD881OUSGSSA
1976-01-25 D72019118.65  1OUSGSSA
1978-01-2516:35 UTCm62610 1.05NGVD291OUSGSSA
1978-01-2516:35 UTCm62611 -0.05NAVD881OUSGSSA
1978-01-2516:35 UTCm72019115.85  1OUSGSSA
1982-01-2615:44 UTCm62610 -2.60NGVD291OUSGSSA
1982-01-2615:44 UTCm62611 -3.70NAVD881OUSGSSA
1982-01-2615:44 UTCm72019119.50  1OUSGSSA
1983-01-0616:50 UTCm62610 -3.99NGVD291OUSGSSA
1983-01-0616:50 UTCm62611 -5.09NAVD881OUSGSSA
1983-01-0616:50 UTCm72019120.89  1OUSGSSA
1984-01-1117:35 UTCm62610 -2.85NGVD291OUSGSSA
1984-01-1117:35 UTCm62611 -3.95NAVD881OUSGSSA
1984-01-1117:35 UTCm72019119.75  1OUSGSSA
1985-01-0219:23 UTCm62610 7.06NGVD291OUSGSSA
1985-01-0219:23 UTCm62611 5.96NAVD881OUSGSSA
1985-01-0219:23 UTCm72019109.84  1OUSGSSA
1986-02-0615:30 UTCm62610 -26.08NGVD291OUSGSSA
1986-02-0615:30 UTCm62611 -27.18NAVD881OUSGSSA
1986-02-0615:30 UTCm72019142.98  1OUSGSSA
1988-12-0720:00 UTCm62610 2.93NGVD291OUSGSSA
1988-12-0720:00 UTCm62611 1.83NAVD881OUSGSSA
1988-12-0720:00 UTCm72019113.97  1OUSGSSA
1990-04-1118:25 UTCm62610 3.42NGVD291OUSGSSA
1990-04-1118:25 UTCm62611 2.32NAVD881OUSGSSA
1990-04-1118:25 UTCm72019113.48  1OUSGSSA
1991-04-1715:55 UTCm62610 10.87NGVD291OUSGSSA
1991-04-1715:55 UTCm62611 9.77NAVD881OUSGSSA
1991-04-1715:55 UTCm72019106.03  1OUSGSSA
1997-04-2319:08 UTCm62610 8.34NGVD291OUSGSSA
1997-04-2319:08 UTCm62611 7.24NAVD881OUSGSSA
1997-04-2319:08 UTCm72019108.56  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.