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Groundwater levels for the Nation

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Agency code = usgs
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  • 404229073302301
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USGS 404229073302301 N 9405. 1

Nassau County, New York
Latitude  40°42'29", Longitude  73°30'23" NAD27
Land-surface elevation 58.0 feet above NGVD29
The depth of the well is 15 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 Glacial Aquifer, Upper (112GLCLU) 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
1978-07-31 D62610 44.30NGVD291OUSGSSA
1978-07-31 D62611 43.11NAVD881OUSGSSA
1978-07-31 D7201913.70  1OUSGSSA
1978-10-27 D62610 43.73NGVD291OUSGSSA
1978-10-27 D62611 42.54NAVD881OUSGSSA
1978-10-27 D7201914.27  1OUSGSSA
1978-12-07 D62610 43.28NGVD291OUSGSSA
1978-12-07 D62611 42.09NAVD881OUSGSSA
1978-12-07 D7201914.72  1OUSGSSA
1978-12-28 D62610 44.61NGVD291OUSGSSA
1978-12-28 D62611 43.42NAVD881OUSGSSA
1978-12-28 D7201913.39  1OUSGSSA
1979-01-03 D62610 44.61NGVD291OUSGSSA
1979-01-03 D62611 43.42NAVD881OUSGSSA
1979-01-03 D7201913.39  1OUSGSSA
1979-01-12 D62610 45.03NGVD291OUSGSSA
1979-01-12 D62611 43.84NAVD881OUSGSSA
1979-01-12 D7201912.97  1OUSGSSA
1979-03-21 D62610 46.53NGVD291OUSGSSA
1979-03-21 D62611 45.34NAVD881OUSGSSA
1979-03-21 D7201911.47  1OUSGSSA
1979-04-20 D62610 46.14NGVD291OUSGSSA
1979-04-20 D62611 44.95NAVD881OUSGSSA
1979-04-20 D7201911.86  1OUSGSSA
1979-05-24 D62610 46.23NGVD291OUSGSSA
1979-05-24 D62611 45.04NAVD881OUSGSSA
1979-05-24 D7201911.77  1OUSGSSA
1984-10-1613:15 UTCm62610 44.65NGVD291SUSGSSA
1984-10-1613:15 UTCm62611 43.46NAVD881SUSGSSA
1984-10-1613:15 UTCm7201913.35  1SUSGSSA
1985-09-1423:35 UTCm62610 42.23NGVD291SUSGSSA
1985-09-1423:35 UTCm62611 41.04NAVD881SUSGSSA
1985-09-1423:35 UTCm7201915.77  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.