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Groundwater levels for the Nation

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USGS 404845073440901 N 10101. 1

Nassau County, New York
Latitude  40°48'45", Longitude  73°44'09" NAD27
Land-surface elevation 35.2 feet above NGVD29
The depth of the well is 285 feet below land surface.
The depth of the hole is 306 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 Lloyd Aquifer (211LLYD) local aquifer.
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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
1985-01-1409:13 UTCm62610 1.33NGVD294OUSGSSA
1985-01-1409:13 UTCm62611 0.25NAVD884OUSGSSA
1985-01-1409:13 UTCm7201933.87  4OUSGSSA
1986-02-1017:20 UTCm62610 -1.51NGVD294OUSGSSA
1986-02-1017:20 UTCm62611 -2.59NAVD884OUSGSSA
1986-02-1017:20 UTCm7201936.71  4OUSGSSA
1987-01-1314:25 UTCm62610 -2.50NGVD294OUSGSSA
1987-01-1314:25 UTCm62611 -3.58NAVD884OUSGSSA
1987-01-1314:25 UTCm7201937.70  4OUSGSSA
1988-02-1917:15 UTCm62610 6.52NGVD294OUSGSSA
1988-02-1917:15 UTCm62611 5.44NAVD884OUSGSSA
1988-02-1917:15 UTCm7201928.68  4OUSGSSA
1988-12-2718:20 UTCm62610 -5.42NGVD294OUSGSSA
1988-12-2718:20 UTCm62611 -6.50NAVD884OUSGSSA
1988-12-2718:20 UTCm7201940.62  4OUSGSSA
1990-03-2615:30 UTCm62610 -1.16NGVD294OUSGSSA
1990-03-2615:30 UTCm62611 -2.24NAVD884OUSGSSA
1990-03-2615:30 UTCm7201936.36  4OUSGSSA
1991-03-1917:56 UTCm62610 -2.69NGVD294OUSGSSA
1991-03-1917:56 UTCm62611 -3.77NAVD884OUSGSSA
1991-03-1917:56 UTCm7201937.89  4OUSGSSA
1991-11-0415:02 UTCm62610 -4.72NGVD294OUSGSSA
1991-11-0415:02 UTCm62611 -5.80NAVD884OUSGSSA
1991-11-0415:02 UTCm7201939.92  4OUSGSSA
1992-04-0114:48 UTCm62610 -3.67NGVD294OUSGSSA
1992-04-0114:48 UTCm62611 -4.75NAVD884OUSGSSA
1992-04-0114:48 UTCm7201938.87  4OUSGSSA
1992-05-1918:50 UTCm62610 3.37NGVD294OUSGSSA
1992-05-1918:50 UTCm62611 2.29NAVD884OUSGSSA
1992-05-1918:50 UTCm7201931.83  4OUSGSSA
1992-08-2514:57 UTCm62610 -8.29NGVD294OUSGSSA
1992-08-2514:57 UTCm62611 -9.37NAVD884OUSGSSA
1992-08-2514:57 UTCm7201943.49  4OUSGSSA
1992-12-0815:28 UTCm62610 -2.37NGVD294OUSGSSA
1992-12-0815:28 UTCm62611 -3.45NAVD884OUSGSSA
1992-12-0815:28 UTCm7201937.57  4OUSGSSA
1993-03-2518:42 UTCm62610 -1.40NGVD294OUSGSSA
1993-03-2518:42 UTCm62611 -2.48NAVD884OUSGSSA
1993-03-2518:42 UTCm7201936.60  4OUSGSSA
1993-05-0211:20 UTCm62610 5.72NGVD294OUSGSSA
1993-05-0211:20 UTCm62611 4.64NAVD884OUSGSSA
1993-05-0211:20 UTCm7201929.48  4OUSGSSA
1993-06-1816:07 UTCm62610 -11.29NGVD294OUSGSSA
1993-06-1816:07 UTCm62611 -12.37NAVD884OUSGSSA
1993-06-1816:07 UTCm7201946.49  4OUSGSSA
1993-09-3017:36 UTCm62610 6.69NGVD294OUSGSSA
1993-09-3017:36 UTCm62611 5.61NAVD884OUSGSSA
1993-09-3017:36 UTCm7201928.51  4OUSGSSA
1994-03-3016:40 UTCm62610 -1.96NGVD291OUSGSSA
1994-03-3016:40 UTCm62611 -3.04NAVD881OUSGSSA
1994-03-3016:40 UTCm7201937.16  1OUSGSSA
1994-06-0117:24 UTCm62610 -8.02NGVD291OUSGSSA
1994-06-0117:24 UTCm62611 -9.10NAVD881OUSGSSA
1994-06-0117:24 UTCm7201943.22  1OUSGSSA
1995-03-1519:45 UTCm62610 9.76NGVD291OUSGSSA
1995-03-1519:45 UTCm62611 8.68NAVD881OUSGSSA
1995-03-1519:45 UTCm7201925.44  1OUSGSSA
1995-06-1416:00 UTCm62610 -1.29NGVD291OUSGSSA
1995-06-1416:00 UTCm62611 -2.37NAVD881OUSGSSA
1995-06-1416:00 UTCm7201936.49  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
Status4GWTideAffected
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.