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Groundwater levels for the Nation

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USGS 405146073420701 N 12151. 1

Nassau County, New York
Latitude  40°51'46", Longitude  73°42'07" NAD27
Land-surface elevation 73 feet above NGVD29
The depth of the well is 348 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 Port Washington Aquifer (112PGQF) 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
1993-03-2617:55 UTCm62610 6.25NGVD294OUSGSSA
1993-03-2617:55 UTCm62611 5.16NAVD884OUSGSSA
1993-03-2617:55 UTCm7201966.75  4OUSGSSA
1993-06-2420:15 UTCm62610 -2.10NGVD294OUSGSSA
1993-06-2420:15 UTCm62611 -3.19NAVD884OUSGSSA
1993-06-2420:15 UTCm7201975.10  4OUSGSSA
1993-10-0518:40 UTCm62610 5.07NGVD294OUSGSSA
1993-10-0518:40 UTCm62611 3.98NAVD884OUSGSSA
1993-10-0518:40 UTCm7201967.93  4OUSGSSA
1993-12-2917:00 UTCm62610 5.29NGVD294OUSGSSA
1993-12-2917:00 UTCm62611 4.20NAVD884OUSGSSA
1993-12-2917:00 UTCm7201967.71  4OUSGSSA
1994-03-3119:35 UTCm62610 5.86NGVD294OUSGSSA
1994-03-3119:35 UTCm62611 4.77NAVD884OUSGSSA
1994-03-3119:35 UTCm7201967.14  4OUSGSSA
1994-06-0716:30 UTCm62610 -0.83NGVD294OUSGSSA
1994-06-0716:30 UTCm62611 -1.92NAVD884OUSGSSA
1994-06-0716:30 UTCm7201973.83  4OUSGSSA
1994-09-1916:57 UTCm62610 0.30NGVD294OUSGSSA
1994-09-1916:57 UTCm62611 -0.79NAVD884OUSGSSA
1994-09-1916:57 UTCm7201972.70  4OUSGSSA
1994-12-1516:22 UTCm62610 5.71NGVD294OUSGSSA
1994-12-1516:22 UTCm62611 4.62NAVD884OUSGSSA
1994-12-1516:22 UTCm7201967.29  4OUSGSSA
1995-03-1616:13 UTCm62610 6.31NGVD294OUSGSSA
1995-03-1616:13 UTCm62611 5.22NAVD884OUSGSSA
1995-03-1616:13 UTCm7201966.69  4OUSGSSA
1995-06-1317:11 UTCm62610 -0.07NGVD294OUSGSSA
1995-06-1317:11 UTCm62611 -1.16NAVD884OUSGSSA
1995-06-1317:11 UTCm7201973.07  4OUSGSSA
1995-08-2316:04 UTCm62610 -5.30NGVD294OUSGSSA
1995-08-2316:04 UTCm62611 -6.39NAVD884OUSGSSA
1995-08-2316:04 UTCm7201978.30  4OUSGSSA
1995-12-0516:35 UTCm62610 5.45NGVD294OUSGSSA
1995-12-0516:35 UTCm62611 4.36NAVD884OUSGSSA
1995-12-0516:35 UTCm7201967.55  4OUSGSSA
1996-03-1917:12 UTCm62610 6.12NGVD294OUSGSSA
1996-03-1917:12 UTCm62611 5.03NAVD884OUSGSSA
1996-03-1917:12 UTCm7201966.88  4OUSGSSA
1996-05-1515:55 UTCm62610 6.09NGVD294OUSGSSA
1996-05-1515:55 UTCm62611 5.00NAVD884OUSGSSA
1996-05-1515:55 UTCm7201966.91  4OUSGSSA
1996-09-1116:10 UTCm62610 -2.65NGVD294OUSGSSA
1996-09-1116:10 UTCm62611 -3.74NAVD884OUSGSSA
1996-09-1116:10 UTCm7201975.65  4OUSGSSA
1996-12-1116:37 UTCm62610 6.60NGVD294OUSGSSA
1996-12-1116:37 UTCm62611 5.51NAVD884OUSGSSA
1996-12-1116:37 UTCm7201966.40  4OUSGSSA
1997-03-1017:46 UTCm62610 6.86NGVD294OUSGSSA
1997-03-1017:46 UTCm62611 5.77NAVD884OUSGSSA
1997-03-1017:46 UTCm7201966.14  4OUSGSSA
2002-03-1518:50 UTCm62610 6.35NGVD294SUSGSSA
2002-03-1518:50 UTCm62611 5.26NAVD884SUSGSSA
2002-03-1518:50 UTCm7201966.65  4SUSGSSA
2003-03-1916:29 UTCm62610 6.84NGVD294SUSGSSA
2003-03-1916:29 UTCm62611 5.75NAVD884SUSGSSA
2003-03-1916:29 UTCm7201966.16  4SUSGSSA
2004-03-2319:16 UTCm62610 1.45NGVD294SUSGSSA
2004-03-2319:16 UTCm62611 0.36NAVD884SUSGSSA
2004-03-2319:16 UTCm7201971.55  4SUSGSSA
2005-03-2415:52 UTCm62610 4.15NGVD294SUSGSSA
2005-03-2415:52 UTCm62611 3.06NAVD884SUSGSSA
2005-03-2415:52 UTCm7201968.85  4SUSGSSA
2006-03-2816:35 UTCm62610 4.25NGVD294SUSGSSA
2006-03-2816:35 UTCm62611 3.16NAVD884SUSGSSA
2006-03-2816:35 UTCm7201968.75  4SUSGSSA
2010-04-2017:42 UTCm62610 5.33NGVD291T  A
2010-04-2017:42 UTCm62611 4.24NAVD881T  A
2010-04-2017:42 UTCm7201967.67  1T  A
2013-07-2317:53 UTCm62610 -9.71NGVD291TUSGSSA
2013-07-2317:53 UTCm62611 -10.80NAVD881TUSGSSA
2013-07-2317:53 UTCm7201982.71  1TUSGSSA
2013-07-2921:45 UTCm62610 -9.02NGVD294SUSGSSA
2013-07-2921:45 UTCm62611 -10.11NAVD884SUSGSSA
2013-07-2921:45 UTCm7201982.02  4SUSGSSA
2016-05-2317:28 UTCm62610 -8.29NGVD294TUSGSSA
2016-05-2317:28 UTCm62611 -9.38NAVD884TUSGSSA
2016-05-2317:28 UTCm7201981.29  4TUSGSSA
2023-04-1713:56 UTCm62610 -1.24NGVD294VUSGSSA
2023-04-1713:56 UTCm62611 -2.33NAVD884VUSGSSA
2023-04-1713:56 UTCm7201974.24  4VUSGSSA
2024-05-0815:39 UTCm62610 -0.99NGVD294VUSGSSA
2024-05-0815:39 UTCm62611 -2.08NAVD884VUSGSSA
2024-05-0815:39 UTCm7201973.99  4VUSGSSA

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.
Method of measurementTElectric-tape measurement.
Method of measurementVCalibrated electric-tape measurement.
Measuring agencyNot determined
Measuring agencyUSGSU.S. Geological Survey
Source of measurementNot determined
Source of measurementSMeasured by personnel of reporting agency.
Water-level approval statusAApproved for publication -- Processing and review completed.