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Groundwater levels for the Nation

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Agency code = usgs
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  • 404455073324902
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USGS 404455073324902 N 7561. 1

Nassau County, New York
Latitude  40°44'53", Longitude  73°32'46" NAD27
Land-surface elevation 117.0 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 Glacial Aquifer, Upper (112GLCLU) 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
1964-12-29 D62610 70.88NGVD291OUSGSSA
1964-12-29 D62611 69.70NAVD881OUSGSSA
1964-12-29 D7201946.12  1OUSGSSA
1970-03-04 D62610 67.78NGVD291OUSGSSA
1970-03-04 D62611 66.60NAVD881OUSGSSA
1970-03-04 D7201949.22  1OUSGSSA
1971-03-09 D62610 69.08NGVD291OUSGSSA
1971-03-09 D62611 67.90NAVD881OUSGSSA
1971-03-09 D7201947.92  1OUSGSSA
1972-03-13 D62610 69.59NGVD291OUSGSSA
1972-03-13 D62611 68.41NAVD881OUSGSSA
1972-03-13 D7201947.41  1OUSGSSA
1973-03-20 D62610 73.75NGVD291OUSGSSA
1973-03-20 D62611 72.57NAVD881OUSGSSA
1973-03-20 D7201943.25  1OUSGSSA
1974-03-25 D62610 69.00NGVD291OUSGSSA
1974-03-25 D62611 67.82NAVD881OUSGSSA
1974-03-25 D7201948.00  1OUSGSSA
1975-03-17 D62610 72.58NGVD291OUSGSSA
1975-03-17 D62611 71.40NAVD881OUSGSSA
1975-03-17 D7201944.42  1OUSGSSA
1976-03-18 D62610 70.91NGVD291OUSGSSA
1976-03-18 D62611 69.73NAVD881OUSGSSA
1976-03-18 D7201946.09  1OUSGSSA
1977-03-21 D62610 69.57NGVD291OUSGSSA
1977-03-21 D62611 68.39NAVD881OUSGSSA
1977-03-21 D7201947.43  1OUSGSSA
1978-03-16 D62610 77.20NGVD291OUSGSSA
1978-03-16 D62611 76.02NAVD881OUSGSSA
1978-03-16 D7201939.80  1OUSGSSA
1979-03-16 D62610 63.71NGVD291OUSGSSA
1979-03-16 D62611 62.53NAVD881OUSGSSA
1979-03-16 D7201953.29  1OUSGSSA
1980-03-11 D62610 60.06NGVD291OUSGSSA
1980-03-11 D62611 58.88NAVD881OUSGSSA
1980-03-11 D7201956.94  1OUSGSSA
1982-03-0913:25 UTCm62610 49.35NGVD291OUSGSSA
1982-03-0913:25 UTCm62611 48.17NAVD881OUSGSSA
1982-03-0913:25 UTCm7201967.65  1OUSGSSA
1983-03-0913:30 UTCm62610 44.39NGVD291OUSGSSA
1983-03-0913:30 UTCm62611 43.21NAVD881OUSGSSA
1983-03-0913:30 UTCm7201972.61  1OUSGSSA
1984-03-1613:20 UTCm62610 58.90NGVD291OUSGSSA
1984-03-1613:20 UTCm62611 57.72NAVD881OUSGSSA
1984-03-1613:20 UTCm7201958.10  1OUSGSSA
1984-03-1613:35 UTCm62610 58.92NGVD291OUSGSSA
1984-03-1613:35 UTCm62611 57.74NAVD881OUSGSSA
1984-03-1613:35 UTCm7201958.08  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.