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Groundwater levels for the Nation

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USGS 404650073440901 N 22. 1

Nassau County, New York
Latitude  40°46'42", Longitude  73°44'05" NAD27
Land-surface elevation 20.0 feet above NGVD29
The depth of the well is 150 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
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
1971-03-10 D62610 12.23NGVD291OUSGSSA
1971-03-10 D62611 11.15NAVD881OUSGSSA
1971-03-10 D720197.77  1OUSGSSA
1971-03-22 D62610 14.00NGVD291OUSGSSA
1971-03-22 D62611 12.92NAVD881OUSGSSA
1971-03-22 D720196.00  1OUSGSSA
1976-03-1614:15 UTCm62610 4.24NGVD29POUSGSSA
1976-03-1614:15 UTCm62611 3.16NAVD88POUSGSSA
1976-03-1614:15 UTCm7201915.76  POUSGSSA
1977-01-27 D62610 4.85NGVD291OUSGSSA
1977-01-27 D62611 3.77NAVD881OUSGSSA
1977-01-27 D7201915.15  1OUSGSSA
1977-03-2114:45 UTCm62610 1.74NGVD29POUSGSSA
1977-03-2114:45 UTCm62611 0.66NAVD88POUSGSSA
1977-03-2114:45 UTCm7201918.26  POUSGSSA
1978-03-1313:45 UTCm62610 0.42NGVD29POUSGSSA
1978-03-1313:45 UTCm62611 -0.66NAVD88POUSGSSA
1978-03-1313:45 UTCm7201919.58  POUSGSSA
1979-03-1913:40 UTCm62610 17.27NGVD291OUSGSSA
1979-03-1913:40 UTCm62611 16.19NAVD881OUSGSSA
1979-03-1913:40 UTCm720192.73  1OUSGSSA
1980-03-0613:55 UTCm62610 1.46NGVD29POUSGSSA
1980-03-0613:55 UTCm62611 0.38NAVD88POUSGSSA
1980-03-0613:55 UTCm7201918.54  POUSGSSA
1981-03-0614:15 UTCm62610 0.07NGVD29POUSGSSA
1981-03-0614:15 UTCm62611 -1.01NAVD88POUSGSSA
1981-03-0614:15 UTCm7201919.93  POUSGSSA
1982-03-0813:55 UTCm62610 1.61NGVD291OUSGSSA
1982-03-0813:55 UTCm62611 0.53NAVD881OUSGSSA
1982-03-0813:55 UTCm7201918.39  1OUSGSSA
1983-03-0314:05 UTCm62610 1.10NGVD291OUSGSSA
1983-03-0314:05 UTCm62611 0.02NAVD881OUSGSSA
1983-03-0314:05 UTCm7201918.90  1OUSGSSA
1984-03-0113:10 UTCm62610 15.99NGVD291OUSGSSA
1984-03-0113:10 UTCm62611 14.91NAVD881OUSGSSA
1984-03-0113:10 UTCm720194.01  1OUSGSSA
1988-05-1714:54 UTCm62610 3.60NGVD29POUSGSSA
1988-05-1714:54 UTCm62611 2.52NAVD88POUSGSSA
1988-05-1714:54 UTCm7201916.40  POUSGSSA
1991-04-0318:10 UTCm62610 5.66NGVD294OUSGSSA
1991-04-0318:10 UTCm62611 4.58NAVD884OUSGSSA
1991-04-0318:10 UTCm7201914.34  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
Status4GWTideAffected
StatusPWater level was affected by pumping at the time of the measurement
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.