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Groundwater levels for the Nation

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USGS 404108073371605 N 8250. 3

Nassau County, New York
Latitude  40°41'08", Longitude  73°37'16" NAD27
Land-surface elevation 48.0 feet above NGVD29
The depth of the well is 485 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
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
1969-11-17 D62610 23.68NGVD291OUSGSSA
1969-11-17 D62611 22.54NAVD881OUSGSSA
1969-11-17 D7201924.32  1OUSGSSA
1970-03-04 D62610 20.01NGVD291OUSGSSA
1970-03-04 D62611 18.87NAVD881OUSGSSA
1970-03-04 D7201927.99  1OUSGSSA
1971-03-09 D62610 22.14NGVD291OUSGSSA
1971-03-09 D62611 21.00NAVD881OUSGSSA
1971-03-09 D7201925.86  1OUSGSSA
1972-03-14 D62610 23.54NGVD291OUSGSSA
1972-03-14 D62611 22.40NAVD881OUSGSSA
1972-03-14 D7201924.46  1OUSGSSA
1973-03-21 D62610 22.59NGVD291OUSGSSA
1973-03-21 D62611 21.45NAVD881OUSGSSA
1973-03-21 D7201925.41  1OUSGSSA
1974-03-26 D62610 24.98NGVD291OUSGSSA
1974-03-26 D62611 23.84NAVD881OUSGSSA
1974-03-26 D7201923.02  1OUSGSSA
1975-03-18 D62610 24.84NGVD291OUSGSSA
1975-03-18 D62611 23.70NAVD881OUSGSSA
1975-03-18 D7201923.16  1OUSGSSA
1976-03-22 D62610 22.58NGVD291OUSGSSA
1976-03-22 D62611 21.44NAVD881OUSGSSA
1976-03-22 D7201925.42  1OUSGSSA
1977-03-23 D62610 22.37NGVD291OUSGSSA
1977-03-23 D62611 21.23NAVD881OUSGSSA
1977-03-23 D7201925.63  1OUSGSSA
1978-03-15 D62610 25.92NGVD291OUSGSSA
1978-03-15 D62611 24.78NAVD881OUSGSSA
1978-03-15 D7201922.08  1OUSGSSA
1979-03-14 D62610 27.74NGVD291OUSGSSA
1979-03-14 D62611 26.60NAVD881OUSGSSA
1979-03-14 D7201920.26  1OUSGSSA
1980-03-1116:25 UTCm62610 24.30NGVD291SUSGSSA
1980-03-1116:25 UTCm62611 23.16NAVD881SUSGSSA
1980-03-1116:25 UTCm7201923.70  1SUSGSSA
1981-03-0919:20 UTCm62610 22.81NGVD291SUSGSSA
1981-03-0919:20 UTCm62611 21.67NAVD881SUSGSSA
1981-03-0919:20 UTCm7201925.19  1SUSGSSA
1982-03-0919:05 UTCm62610 22.42NGVD291SUSGSSA
1982-03-0919:05 UTCm62611 21.28NAVD881SUSGSSA
1982-03-0919:05 UTCm7201925.58  1SUSGSSA
1983-03-1015:00 UTCm62610 22.05NGVD291SUSGSSA
1983-03-1015:00 UTCm62611 20.91NAVD881SUSGSSA
1983-03-1015:00 UTCm7201925.95  1SUSGSSA
1984-03-1215:20 UTCm62610 20.09NGVD291SUSGSSA
1984-03-1215:20 UTCm62611 18.95NAVD881SUSGSSA
1984-03-1215:20 UTCm7201927.91  1SUSGSSA
1985-04-2314:26 UTCm62610 22.41NGVD291SUSGSSA
1985-04-2314:26 UTCm62611 21.27NAVD881SUSGSSA
1985-04-2314:26 UTCm7201925.59  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.