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Groundwater levels for the Nation

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USGS 404647073423501 N 5099. 2

Nassau County, New York
Latitude  40°46'47", Longitude  73°42'35" NAD27
Land-surface elevation 189.0 feet above NGVD29
The depth of the well is 399 feet below land surface.
The depth of the hole is 434 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
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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
1955-12-01 D62610 38.14NGVD291OUSGSSA
1955-12-01 D62611 37.05NAVD881OUSGSSA
1955-12-01 D72019150.86  1OUSGSSA
1956-01-03 D62610 38.76NGVD291OUSGSSA
1956-01-03 D62611 37.67NAVD881OUSGSSA
1956-01-03 D72019150.24  1OUSGSSA
1956-04-04 D62610 39.18NGVD291OUSGSSA
1956-04-04 D62611 38.09NAVD881OUSGSSA
1956-04-04 D72019149.82  1OUSGSSA
1956-08-02 D62610 37.96NGVD291OUSGSSA
1956-08-02 D62611 36.87NAVD881OUSGSSA
1956-08-02 D72019151.04  1OUSGSSA
1956-08-24 D62610 38.90NGVD291OUSGSSA
1956-08-24 D62611 37.81NAVD881OUSGSSA
1956-08-24 D72019150.10  1OUSGSSA
1956-10-02 D62610 39.45NGVD291OUSGSSA
1956-10-02 D62611 38.36NAVD881OUSGSSA
1956-10-02 D72019149.55  1OUSGSSA
1956-11-05 D62610 36.67NGVD291OUSGSSA
1956-11-05 D62611 35.58NAVD881OUSGSSA
1956-11-05 D72019152.33  1OUSGSSA
1957-01-04 D62610 39.31NGVD291OUSGSSA
1957-01-04 D62611 38.22NAVD881OUSGSSA
1957-01-04 D72019149.69  1OUSGSSA
1957-02-04 D62610 38.59NGVD291OUSGSSA
1957-02-04 D62611 37.50NAVD881OUSGSSA
1957-02-04 D72019150.41  1OUSGSSA
1957-03-29 D62610 39.42NGVD291OUSGSSA
1957-03-29 D62611 38.33NAVD881OUSGSSA
1957-03-29 D72019149.58  1OUSGSSA
1964-12-08 D62610 28.19NGVD291OUSGSSA
1964-12-08 D62611 27.10NAVD881OUSGSSA
1964-12-08 D72019160.81  1OUSGSSA
1969-12-04 D62610 24.40NGVD291OUSGSSA
1969-12-04 D62611 23.31NAVD881OUSGSSA
1969-12-04 D72019164.60  1OUSGSSA
1970-03-02 D62610 24.47NGVD291OUSGSSA
1970-03-02 D62611 23.38NAVD881OUSGSSA
1970-03-02 D72019164.53  1OUSGSSA
1971-03-10 D62610 23.97NGVD291OUSGSSA
1971-03-10 D62611 22.88NAVD881OUSGSSA
1971-03-10 D72019165.03  1OUSGSSA
1972-03-13 D62610 21.80NGVD291OUSGSSA
1972-03-13 D62611 20.71NAVD881OUSGSSA
1972-03-13 D72019167.20  1OUSGSSA
1973-03-20 D62610 21.29NGVD291OUSGSSA
1973-03-20 D62611 20.20NAVD881OUSGSSA
1973-03-20 D72019167.71  1OUSGSSA
1974-03-25 D62610 20.80NGVD291OUSGSSA
1974-03-25 D62611 19.71NAVD881OUSGSSA
1974-03-25 D72019168.20  1OUSGSSA
1975-03-17 D62610 25.41NGVD291OUSGSSA
1975-03-17 D62611 24.32NAVD881OUSGSSA
1975-03-17 D72019163.59  1OUSGSSA
1976-03-16 D62610 27.20NGVD291OUSGSSA
1976-03-16 D62611 26.11NAVD881OUSGSSA
1976-03-16 D72019161.80  1OUSGSSA
1977-03-23 D62610 19.40NGVD291OUSGSSA
1977-03-23 D62611 18.31NAVD881OUSGSSA
1977-03-23 D72019169.60  1OUSGSSA
1978-03-21 D62610 25.38NGVD291OUSGSSA
1978-03-21 D62611 24.29NAVD881OUSGSSA
1978-03-21 D72019163.62  1OUSGSSA
1985-04-2613:27 UTCm62610 26.30NGVD291SUSGSSA
1985-04-2613:27 UTCm62611 25.21NAVD881SUSGSSA
1985-04-2613:27 UTCm72019162.70  1SUSGSSA

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.
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.