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Groundwater levels for the Nation

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USGS 405347073375501 N 835. 1

Nassau County, New York
Latitude  40°53'46", Longitude  73°37'53" NAD27
Land-surface elevation 10.0 feet above NGVD29
The depth of the well is 303 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
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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
1946-01-28 D62610 9.89NGVD291OUSGSSA
1946-01-28 D62611 8.80NAVD881OUSGSSA
1946-01-28 D720190.11  1OUSGSSA
1947-03-21 D62610 9.97NGVD291OUSGSSA
1947-03-21 D62611 8.88NAVD881OUSGSSA
1947-03-21 D720190.03  1OUSGSSA
1948-03-29 D62610 9.97NGVD291OUSGSSA
1948-03-29 D62611 8.88NAVD881OUSGSSA
1948-03-29 D720190.03  1OUSGSSA
1950-03-16 D62610 8.65NGVD291OUSGSSA
1950-03-16 D62611 7.56NAVD881OUSGSSA
1950-03-16 D720191.35  1OUSGSSA
1950-06-12 D62610 9.28NGVD291OUSGSSA
1950-06-12 D62611 8.19NAVD881OUSGSSA
1950-06-12 D720190.72  1OUSGSSA
1961-03-13 D62610 10.50NGVD291OUSGSSA
1961-03-13 D62611 9.41NAVD881OUSGSSA
1961-03-13 D72019-0.50  1OUSGSSA
1970-12-31 D62610 8.10NGVD29POUSGSSA
1970-12-31 D62611 7.01NAVD88POUSGSSA
1970-12-31 D720191.90  POUSGSSA
1972-01-06 D62610 8.68NGVD291OUSGSSA
1972-01-06 D62611 7.59NAVD881OUSGSSA
1972-01-06 D720191.32  1OUSGSSA
1974-01-30 D62610 7.61NGVD291OUSGSSA
1974-01-30 D62611 6.52NAVD881OUSGSSA
1974-01-30 D720192.39  1OUSGSSA
1975-01-1514:20 UTCm62610 6.36NGVD291OUSGSSA
1975-01-1514:20 UTCm62611 5.27NAVD881OUSGSSA
1975-01-1514:20 UTCm720193.64  1OUSGSSA
1979-01-1618:12 UTCm62610 5.82NGVD291OUSGSSA
1979-01-1618:12 UTCm62611 4.73NAVD881OUSGSSA
1979-01-1618:12 UTCm720194.18  1OUSGSSA
1980-01-2119:22 UTCm62610 9.26NGVD294OUSGSSA
1980-01-2119:22 UTCm62611 8.17NAVD884OUSGSSA
1980-01-2119:22 UTCm720190.74  4OUSGSSA
1981-01-2318:07 UTCm62610 9.60NGVD294OUSGSSA
1981-01-2318:07 UTCm62611 8.51NAVD884OUSGSSA
1981-01-2318:07 UTCm720190.40  4OUSGSSA
1982-01-0613:58 UTCm62610 9.77NGVD294OUSGSSA
1982-01-0613:58 UTCm62611 8.68NAVD884OUSGSSA
1982-01-0613:58 UTCm720190.23  4OUSGSSA
1983-01-1014:10 UTCm62610 11.11NGVD294OUSGSSA
1983-01-1014:10 UTCm62611 10.02NAVD884OUSGSSA
1983-01-1014:10 UTCm72019-1.11  4OUSGSSA
1984-01-1614:05 UTCm62610 10.86NGVD294OUSGSSA
1984-01-1614:05 UTCm62611 9.77NAVD884OUSGSSA
1984-01-1614:05 UTCm72019-0.86  4OUSGSSA
1985-01-0214:15 UTCm62610 11.61NGVD294OUSGSSA
1985-01-0214:15 UTCm62611 10.52NAVD884OUSGSSA
1985-01-0214:15 UTCm72019-1.61  4OUSGSSA
1987-01-1214:10 UTCm62610 9.95NGVD294OUSGSSA
1987-01-1214:10 UTCm62611 8.86NAVD884OUSGSSA
1987-01-1214:10 UTCm720190.05  4OUSGSSA
1988-02-0919:35 UTCm62610 10.38NGVD294OUSGSSA
1988-02-0919:35 UTCm62611 9.29NAVD884OUSGSSA
1988-02-0919:35 UTCm72019-0.38  4OUSGSSA
1988-12-2215:25 UTCm62610 11.09NGVD294OUSGSSA
1988-12-2215:25 UTCm62611 10.00NAVD884OUSGSSA
1988-12-2215:25 UTCm72019-1.09  4OUSGSSA
1990-04-1116:03 UTCm62610 9.30NGVD294OUSGSSA
1990-04-1116:03 UTCm62611 8.21NAVD884OUSGSSA
1990-04-1116:03 UTCm720190.70  4OUSGSSA
1995-05-0317:25 UTCm62610 10.45NGVD294SUSGSSA
1995-05-0317:25 UTCm62611 9.36NAVD884SUSGSSA
1995-05-0317:25 UTCm72019-0.45  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
Status4Groundwater level affected by tide
StatusPPumping
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.