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Groundwater levels for the Nation

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Agency code = usgs
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  • 404412073363401
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USGS 404412073363401 N 9959. 1

Nassau County, New York
Latitude  40°44'12", Longitude  73°36'34" NAD27
Land-surface elevation 82.0 feet above NGVD29
The depth of the well is 54 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.
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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
1982-08-1918:30 UTCm62610 57.80NGVD291OUSGSSA
1982-08-1918:30 UTCm62611 56.64NAVD881OUSGSSA
1982-08-1918:30 UTCm7201924.20  1OUSGSSA
1982-11-17 D62610 56.77NGVD291OUSGSSA
1982-11-17 D62611 55.61NAVD881OUSGSSA
1982-11-17 D7201925.23  1OUSGSSA
1983-03-3116:17 UTCm62610 58.41NGVD291OUSGSSA
1983-03-3116:17 UTCm62611 57.25NAVD881OUSGSSA
1983-03-3116:17 UTCm7201923.59  1OUSGSSA
1983-04-1418:20 UTCm62610 59.48NGVD291OUSGSSA
1983-04-1418:20 UTCm62611 58.32NAVD881OUSGSSA
1983-04-1418:20 UTCm7201922.52  1OUSGSSA
1983-08-1114:15 UTCm62610 58.04NGVD291OUSGSSA
1983-08-1114:15 UTCm62611 56.88NAVD881OUSGSSA
1983-08-1114:15 UTCm7201923.96  1OUSGSSA
1983-08-3118:45 UTCm62610 57.12NGVD291OUSGSSA
1983-08-3118:45 UTCm62611 55.96NAVD881OUSGSSA
1983-08-3118:45 UTCm7201924.88  1OUSGSSA
1984-04-0619:50 UTCm62610 61.50NGVD291OUSGSSA
1984-04-0619:50 UTCm62611 60.34NAVD881OUSGSSA
1984-04-0619:50 UTCm7201920.50  1OUSGSSA
1984-04-2517:53 UTCm62610 62.39NGVD291OUSGSSA
1984-04-2517:53 UTCm62611 61.23NAVD881OUSGSSA
1984-04-2517:53 UTCm7201919.61  1OUSGSSA
1984-08-0817:55 UTCm62610 64.85NGVD291OUSGSSA
1984-08-0817:55 UTCm62611 63.69NAVD881OUSGSSA
1984-08-0817:55 UTCm7201917.15  1OUSGSSA
1987-05-1915:35 UTCm62610 58.33NGVD291OUSGSSA
1987-05-1915:35 UTCm62611 57.17NAVD881OUSGSSA
1987-05-1915:35 UTCm7201923.67  1OUSGSSA
1987-07-2817:20 UTCm62610 58.94NGVD291OUSGSSA
1987-07-2817:20 UTCm62611 57.78NAVD881OUSGSSA
1987-07-2817:20 UTCm7201923.06  1OUSGSSA
1987-10-0615:15 UTCm62610 57.96NGVD291OUSGSSA
1987-10-0615:15 UTCm62611 56.80NAVD881OUSGSSA
1987-10-0615:15 UTCm7201924.04  1OUSGSSA

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