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Groundwater levels for the Nation

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Agency code = usgs
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  • 403738073375001
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USGS 403738073375001 N 10425. 1

Nassau County, New York
Latitude  40°37'38", Longitude  73°37'50" NAD27
Land-surface elevation 6.0 feet above NGVD29
The depth of the well is 712 feet below land surface.
The depth of the hole is 712 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.
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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
1987-11-2717:10 UTCm62610 3.45NGVD294OUSGSSA
1987-11-2717:10 UTCm62611 2.32NAVD884OUSGSSA
1987-11-2717:10 UTCm720192.55  4OUSGSSA
1988-04-0615:13 UTCm62610 3.91NGVD291OUSGSSA
1988-04-0615:13 UTCm62611 2.78NAVD881OUSGSSA
1988-04-0615:13 UTCm720192.09  1OUSGSSA
1988-06-0620:45 UTCm62610 4.51NGVD291OUSGSSA
1988-06-0620:45 UTCm62611 3.38NAVD881OUSGSSA
1988-06-0620:45 UTCm720191.49  1OUSGSSA
1989-03-1316:45 UTCm62610 3.99NGVD291OUSGSSA
1989-03-1316:45 UTCm62611 2.86NAVD881OUSGSSA
1989-03-1316:45 UTCm720192.01  1OUSGSSA
1990-04-1617:45 UTCm62610 4.56NGVD294OUSGSSA
1990-04-1617:45 UTCm62611 3.43NAVD884OUSGSSA
1990-04-1617:45 UTCm720191.44  4OUSGSSA
1991-03-2117:05 UTCm62610 4.47NGVD294OUSGSSA
1991-03-2117:05 UTCm62611 3.34NAVD884OUSGSSA
1991-03-2117:05 UTCm720191.53  4OUSGSSA
1992-04-0313:28 UTCm62610 4.35NGVD294OUSGSSA
1992-04-0313:28 UTCm62611 3.22NAVD884OUSGSSA
1992-04-0313:28 UTCm720191.65  4OUSGSSA
1993-03-2514:53 UTCm62610 3.78NGVD294OUSGSSA
1993-03-2514:53 UTCm62611 2.65NAVD884OUSGSSA
1993-03-2514:53 UTCm720192.22  4OUSGSSA
1994-03-2915:50 UTCm62610 4.90NGVD294OUSGSSA
1994-03-2915:50 UTCm62611 3.77NAVD884OUSGSSA
1994-03-2915:50 UTCm720191.10  4OUSGSSA
1995-03-2317:50 UTCm62610 3.88NGVD294OUSGSSA
1995-03-2317:50 UTCm62611 2.75NAVD884OUSGSSA
1995-03-2317:50 UTCm720192.12  4OUSGSSA
1996-03-1117:50 UTCm62610 5.11NGVD294OUSGSSA
1996-03-1117:50 UTCm62611 3.98NAVD884OUSGSSA
1996-03-1117:50 UTCm720190.89  4OUSGSSA
1997-03-1117:50 UTCm62610 4.87NGVD294OUSGSSA
1997-03-1117:50 UTCm62611 3.74NAVD884OUSGSSA
1997-03-1117:50 UTCm720191.13  4OUSGSSA
1998-03-1715:55 UTCm62610 4.77NGVD294SUSGSSA
1998-03-1715:55 UTCm62611 3.64NAVD884SUSGSSA
1998-03-1715:55 UTCm720191.23  4SUSGSSA

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.