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Groundwater levels for the Nation

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USGS 405548073382001 N 660. 1

Nassau County, New York
Latitude  40°51'49", Longitude  73°38'19" NAD27
Land-surface elevation 58.0 feet above NGVD29
The depth of the well is 404 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.
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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
1946-01-30 D62610 21.50NGVD291OUSGSSA
1946-01-30 D62611 20.42NAVD881OUSGSSA
1946-01-30 D7201936.50  1OUSGSSA
1947-03-18 D62610 11.00NGVD291OUSGSSA
1947-03-18 D62611 9.92NAVD881OUSGSSA
1947-03-18 D7201947.00  1OUSGSSA
1948-04-16 D62610 8.84NGVD291OUSGSSA
1948-04-16 D62611 7.76NAVD881OUSGSSA
1948-04-16 D7201949.16  1OUSGSSA
1950-02-18 D62610 6.27NGVD291OUSGSSA
1950-02-18 D62611 5.19NAVD881OUSGSSA
1950-02-18 D7201951.73  1OUSGSSA
1952-04-04 D62610 8.65NGVD291OUSGSSA
1952-04-04 D62611 7.57NAVD881OUSGSSA
1952-04-04 D7201949.35  1OUSGSSA
1954-09-17 D62610 4.95NGVD291OUSGSSA
1954-09-17 D62611 3.87NAVD881OUSGSSA
1954-09-17 D7201953.05  1OUSGSSA
1955-05-02 D62610 6.06NGVD291OUSGSSA
1955-05-02 D62611 4.98NAVD881OUSGSSA
1955-05-02 D7201951.94  1OUSGSSA
1971-01-02 D62610 10.74NGVD291OUSGSSA
1971-01-02 D62611 9.66NAVD881OUSGSSA
1971-01-02 D7201947.26  1OUSGSSA
1973-11-13 D62610 11.30NGVD29POUSGSSA
1973-11-13 D62611 10.22NAVD88POUSGSSA
1973-11-13 D7201946.70  POUSGSSA
1977-01-23 D62610 11.75NGVD291OUSGSSA
1977-01-23 D62611 10.67NAVD881OUSGSSA
1977-01-23 D7201946.25  1OUSGSSA
1978-01-1513:29 UTCm62610 13.80NGVD291OUSGSSA
1978-01-1513:29 UTCm62611 12.72NAVD881OUSGSSA
1978-01-1513:29 UTCm7201944.20  1OUSGSSA
1982-01-2519:07 UTCm62610 13.58NGVD294OUSGSSA
1982-01-2519:07 UTCm62611 12.50NAVD884OUSGSSA
1982-01-2519:07 UTCm7201944.42  4OUSGSSA
1983-01-0218:13 UTCm62610 13.62NGVD294OUSGSSA
1983-01-0218:13 UTCm62611 12.54NAVD884OUSGSSA
1983-01-0218:13 UTCm7201944.38  4OUSGSSA
1983-12-2418:30 UTCm62610 13.74NGVD294OUSGSSA
1983-12-2418:30 UTCm62611 12.66NAVD884OUSGSSA
1983-12-2418:30 UTCm7201944.26  4OUSGSSA
1984-12-3111:59 UTCm62610 15.63NGVD294OUSGSSA
1984-12-3111:59 UTCm62611 14.55NAVD884OUSGSSA
1984-12-3111:59 UTCm7201942.37  4OUSGSSA
1987-01-0218:15 UTCm62610 16.54NGVD294OUSGSSA
1987-01-0218:15 UTCm62611 15.46NAVD884OUSGSSA
1987-01-0218:15 UTCm7201941.46  4OUSGSSA
1990-04-1118:00 UTCm62610 9.99NGVD294OUSGSSA
1990-04-1118:00 UTCm62611 8.91NAVD884OUSGSSA
1990-04-1118:00 UTCm7201948.01  4OUSGSSA
1991-03-2915:22 UTCm62610 13.83NGVD294OUSGSSA
1991-03-2915:22 UTCm62611 12.75NAVD884OUSGSSA
1991-03-2915:22 UTCm7201944.17  4OUSGSSA
1992-04-1716:48 UTCm62610 15.94NGVD294OUSGSSA
1992-04-1716:48 UTCm62611 14.86NAVD884OUSGSSA
1992-04-1716:48 UTCm7201942.06  4OUSGSSA
1995-05-1515:45 UTCm62610 14.90NGVD294SUSGSSA
1995-05-1515:45 UTCm62611 13.82NAVD884SUSGSSA
1995-05-1515:45 UTCm7201943.10  4SUSGSSA

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.
Method of measurementSSteel-tape measurement.
Measuring agencyUSGSU.S. Geological Survey
Source of measurementSMeasured by personnel of reporting agency.
Water-level approval statusAApproved for publication -- Processing and review completed.