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Groundwater levels for the Nation

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Agency code = usgs
site_no list =
  • 404523073332901
Minimum number of levels = 1
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USGS 404523073332901 N 10471. 1

Nassau County, New York
Latitude  40°45'23", Longitude  73°33'29" NAD27
Land-surface elevation 119.0 feet above NGVD29
The depth of the well is 60 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
1990-05-0119:25 UTCm62610 74.93NGVD291OUSGSSA
1990-05-0119:25 UTCm62611 73.76NAVD881OUSGSSA
1990-05-0119:25 UTCm7201944.07  1OUSGSSA
1990-06-2015:50 UTCm62610 76.28NGVD291OUSGSSA
1990-06-2015:50 UTCm62611 75.11NAVD881OUSGSSA
1990-06-2015:50 UTCm7201942.72  1OUSGSSA
1990-11-0520:20 UTCm62610 76.46NGVD291OUSGSSA
1990-11-0520:20 UTCm62611 75.29NAVD881OUSGSSA
1990-11-0520:20 UTCm7201942.54  1OUSGSSA
1991-08-2618:18 UTCm62610 75.78NGVD291OUSGSSA
1991-08-2618:18 UTCm62611 74.61NAVD881OUSGSSA
1991-08-2618:18 UTCm7201943.22  1OUSGSSA

Explanation
SectionCodeDescription
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.