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Groundwater levels for the Nation

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Agency code = usgs
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  • 403822073414401
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USGS 403822073414401 N 10430. 1

Nassau County, New York
Latitude  40°38'22", Longitude  73°41'44" NAD27
Land-surface elevation 17.0 feet above NGVD29
The depth of the well is 618 feet below land surface.
The depth of the hole is 618 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
1987-11-2716:20 UTCm62610 1.63NGVD294OUSGSSA
1987-11-2716:20 UTCm62611 0.53NAVD884OUSGSSA
1987-11-2716:20 UTCm7201915.37  4OUSGSSA
1988-03-2516:15 UTCm62610 2.80NGVD291OUSGSSA
1988-03-2516:15 UTCm62611 1.70NAVD881OUSGSSA
1988-03-2516:15 UTCm7201914.20  1OUSGSSA
1988-04-0516:17 UTCm62610 2.00NGVD291OUSGSSA
1988-04-0516:17 UTCm62611 0.90NAVD881OUSGSSA
1988-04-0516:17 UTCm7201915.00  1OUSGSSA
1993-04-1513:52 UTCm62610 3.84NGVD291SUSGSSA
1993-04-1513:52 UTCm62611 2.74NAVD881SUSGSSA
1993-04-1513:52 UTCm7201913.16  1SUSGSSA

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
Status4GWTideAffected
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.