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Groundwater levels for the Nation

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USGS 404846073440901 N 9776. 1

Nassau County, New York
Latitude  40°48'46", Longitude  73°44'10" NAD27
Land-surface elevation 30.5 feet above NGVD29
The depth of the well is 284 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
1982-01-0817:58 UTCm62610 -6.63NGVD291OUSGSSA
1982-01-0817:58 UTCm62611 -7.71NAVD881OUSGSSA
1982-01-0817:58 UTCm7201937.13  1OUSGSSA
1982-01-1509:35 UTCm62610 -1.20NGVD291OUSGSSA
1982-01-1509:35 UTCm62611 -2.28NAVD881OUSGSSA
1982-01-1509:35 UTCm7201931.70  1OUSGSSA
1983-01-0610:20 UTCm62610 -1.77NGVD291OUSGSSA
1983-01-0610:20 UTCm62611 -2.85NAVD881OUSGSSA
1983-01-0610:20 UTCm7201932.27  1OUSGSSA
1984-01-1012:00 UTCm62610 -6.88NGVD291OUSGSSA
1984-01-1012:00 UTCm62611 -7.96NAVD881OUSGSSA
1984-01-1012:00 UTCm7201937.38  1OUSGSSA
1985-01-1409:06 UTCm62610 1.17NGVD294OUSGSSA
1985-01-1409:06 UTCm62611 0.09NAVD884OUSGSSA
1985-01-1409:06 UTCm7201929.33  4OUSGSSA
1987-01-1314:30 UTCm62610 -2.56NGVD294OUSGSSA
1987-01-1314:30 UTCm62611 -3.64NAVD884OUSGSSA
1987-01-1314:30 UTCm7201933.06  4OUSGSSA
1988-02-1917:05 UTCm62610 6.42NGVD294OUSGSSA
1988-02-1917:05 UTCm62611 5.34NAVD884OUSGSSA
1988-02-1917:05 UTCm7201924.08  4OUSGSSA
1988-12-2718:30 UTCm62610 -5.41NGVD294OUSGSSA
1988-12-2718:30 UTCm62611 -6.49NAVD884OUSGSSA
1988-12-2718:30 UTCm7201935.91  4OUSGSSA
1990-03-2615:35 UTCm62610 -1.12NGVD294OUSGSSA
1990-03-2615:35 UTCm62611 -2.20NAVD884OUSGSSA
1990-03-2615:35 UTCm7201931.62  4OUSGSSA
1991-03-1918:06 UTCm62610 -2.63NGVD294OUSGSSA
1991-03-1918:06 UTCm62611 -3.71NAVD884OUSGSSA
1991-03-1918:06 UTCm7201933.13  4OUSGSSA
1992-04-0114:40 UTCm62610 -3.60NGVD294OUSGSSA
1992-04-0114:40 UTCm62611 -4.68NAVD884OUSGSSA
1992-04-0114:40 UTCm7201934.10  4OUSGSSA
1992-05-1918:45 UTCm62610 3.50NGVD294OUSGSSA
1992-05-1918:45 UTCm62611 2.42NAVD884OUSGSSA
1992-05-1918:45 UTCm7201927.00  4OUSGSSA
1992-07-1414:44 UTCm62610 -6.75NGVD294OUSGSSA
1992-07-1414:44 UTCm62611 -7.83NAVD884OUSGSSA
1992-07-1414:44 UTCm7201937.25  4OUSGSSA
1992-08-2514:54 UTCm62610 -8.25NGVD294OUSGSSA
1992-08-2514:54 UTCm62611 -9.33NAVD884OUSGSSA
1992-08-2514:54 UTCm7201938.75  4OUSGSSA
1992-12-0815:25 UTCm62610 -2.32NGVD294OUSGSSA
1992-12-0815:25 UTCm62611 -3.40NAVD884OUSGSSA
1992-12-0815:25 UTCm7201932.82  4OUSGSSA
1993-03-2518:35 UTCm62610 -0.99NGVD294OUSGSSA
1993-03-2518:35 UTCm62611 -2.07NAVD884OUSGSSA
1993-03-2518:35 UTCm7201931.49  4OUSGSSA
1993-06-1816:02 UTCm62610 -11.22NGVD294OUSGSSA
1993-06-1816:02 UTCm62611 -12.30NAVD884OUSGSSA
1993-06-1816:02 UTCm7201941.72  4OUSGSSA
1993-09-3017:31 UTCm62610 6.71NGVD294OUSGSSA
1993-09-3017:31 UTCm62611 5.63NAVD884OUSGSSA
1993-09-3017:31 UTCm7201923.79  4OUSGSSA
1993-12-2816:10 UTCm62610 -0.50NGVD294OUSGSSA
1993-12-2816:10 UTCm62611 -1.58NAVD884OUSGSSA
1993-12-2816:10 UTCm7201931.00  4OUSGSSA
1994-06-0117:34 UTCm62610 -8.05NGVD291OUSGSSA
1994-06-0117:34 UTCm62611 -9.13NAVD881OUSGSSA
1994-06-0117:34 UTCm7201938.55  1OUSGSSA
1994-06-0818:51 UTCm62610 -8.77NGVD291OUSGSSA
1994-06-0818:51 UTCm62611 -9.85NAVD881OUSGSSA
1994-06-0818:51 UTCm7201939.27  1OUSGSSA
1994-09-2015:24 UTCm62610 -11.18NGVD291OUSGSSA
1994-09-2015:24 UTCm62611 -12.26NAVD881OUSGSSA
1994-09-2015:24 UTCm7201941.68  1OUSGSSA
1994-12-1614:30 UTCm62610 8.28NGVD291OUSGSSA
1994-12-1614:30 UTCm62611 7.20NAVD881OUSGSSA
1994-12-1614:30 UTCm7201922.22  1OUSGSSA
1995-03-1519:49 UTCm62610 9.66NGVD291OUSGSSA
1995-03-1519:49 UTCm62611 8.58NAVD881OUSGSSA
1995-03-1519:49 UTCm7201920.84  1OUSGSSA
1995-06-1416:04 UTCm62610 -1.25NGVD291OUSGSSA
1995-06-1416:04 UTCm62611 -2.33NAVD881OUSGSSA
1995-06-1416:04 UTCm7201931.75  1OUSGSSA
1995-08-2414:26 UTCm62610 -10.83NGVD291OUSGSSA
1995-08-2414:26 UTCm62611 -11.91NAVD881OUSGSSA
1995-08-2414:26 UTCm7201941.33  1OUSGSSA
1995-12-0419:15 UTCm62610 5.43NGVD291OUSGSSA
1995-12-0419:15 UTCm62611 4.35NAVD881OUSGSSA
1995-12-0419:15 UTCm7201925.07  1OUSGSSA
1996-03-2215:55 UTCm62610 6.60NGVD291OUSGSSA
1996-03-2215:55 UTCm62611 5.52NAVD881OUSGSSA
1996-03-2215:55 UTCm7201923.90  1OUSGSSA
1996-05-1614:56 UTCm62610 -7.43NGVD291OUSGSSA
1996-05-1614:56 UTCm62611 -8.51NAVD881OUSGSSA
1996-05-1614:56 UTCm7201937.93  1OUSGSSA
1996-07-1916:10 UTCm62610 -9.50NGVD291OUSGSSA
1996-07-1916:10 UTCm62611 -10.58NAVD881OUSGSSA
1996-07-1916:10 UTCm7201940.00  1OUSGSSA
1996-09-1018:26 UTCm62610 -9.56NGVD291OUSGSSA
1996-09-1018:26 UTCm62611 -10.64NAVD881OUSGSSA
1996-09-1018:26 UTCm7201940.06  1OUSGSSA
1997-03-1019:36 UTCm62610 2.09NGVD291OUSGSSA
1997-03-1019:36 UTCm62611 1.01NAVD881OUSGSSA
1997-03-1019:36 UTCm7201928.41  1OUSGSSA
1998-03-2514:22 UTCm62610 0.67NGVD291SUSGSSA
1998-03-2514:22 UTCm62611 -0.41NAVD881SUSGSSA
1998-03-2514:22 UTCm7201929.83  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
Status4Groundwater level affected by tide
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.