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Groundwater levels for the Nation

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USGS 404744073405101 N 9904. 1

Nassau County, New York
Latitude  40°47'44", Longitude  73°40'51" NAD27
Land-surface elevation 166.0 feet above NGVD29
The depth of the well is 160 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 Glacial Aquifer, Upper (112GLCLU) 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
1991-11-0516:42 UTCm62610 42.08NGVD291OUSGSSA
1991-11-0516:42 UTCm62611 40.99NAVD881OUSGSSA
1991-11-0516:42 UTCm72019123.92  1OUSGSSA
1992-03-1715:46 UTCm62610 42.80NGVD294OUSGSSA
1992-03-1715:46 UTCm62611 41.71NAVD884OUSGSSA
1992-03-1715:46 UTCm72019123.20  4OUSGSSA
1992-06-0217:12 UTCm62610 44.02NGVD294OUSGSSA
1992-06-0217:12 UTCm62611 42.93NAVD884OUSGSSA
1992-06-0217:12 UTCm72019121.98  4OUSGSSA
1992-12-0918:22 UTCm62610 42.79NGVD291OUSGSSA
1992-12-0918:22 UTCm62611 41.70NAVD881OUSGSSA
1992-12-0918:22 UTCm72019123.21  1OUSGSSA
1993-03-2617:24 UTCm62610 42.38NGVD291OUSGSSA
1993-03-2617:24 UTCm62611 41.29NAVD881OUSGSSA
1993-03-2617:24 UTCm72019123.62  1OUSGSSA
1993-06-2420:35 UTCm62610 41.68NGVD294OUSGSSA
1993-06-2420:35 UTCm62611 40.59NAVD884OUSGSSA
1993-06-2420:35 UTCm72019124.32  4OUSGSSA
1993-10-0519:30 UTCm62610 39.74NGVD294OUSGSSA
1993-10-0519:30 UTCm62611 38.65NAVD884OUSGSSA
1993-10-0519:30 UTCm72019126.26  4OUSGSSA
1993-12-2917:07 UTCm62610 40.65NGVD294OUSGSSA
1993-12-2917:07 UTCm62611 39.56NAVD884OUSGSSA
1993-12-2917:07 UTCm72019125.35  4OUSGSSA
1994-03-3116:28 UTCm62610 41.28NGVD291OUSGSSA
1994-03-3116:28 UTCm62611 40.19NAVD881OUSGSSA
1994-03-3116:28 UTCm72019124.72  1OUSGSSA
1994-06-0718:15 UTCm62610 42.16NGVD291OUSGSSA
1994-06-0718:15 UTCm62611 41.07NAVD881OUSGSSA
1994-06-0718:15 UTCm72019123.84  1OUSGSSA
1994-09-1918:03 UTCm62610 40.52NGVD291OUSGSSA
1994-09-1918:03 UTCm62611 39.43NAVD881OUSGSSA
1994-09-1918:03 UTCm72019125.48  1OUSGSSA
1994-12-1514:42 UTCm62610 40.78NGVD291OUSGSSA
1994-12-1514:42 UTCm62611 39.69NAVD881OUSGSSA
1994-12-1514:42 UTCm72019125.22  1OUSGSSA
1995-03-1614:07 UTCm62610 41.88NGVD291OUSGSSA
1995-03-1614:07 UTCm62611 40.79NAVD881OUSGSSA
1995-03-1614:07 UTCm72019124.12  1OUSGSSA
1995-06-1315:00 UTCm62610 41.46NGVD291OUSGSSA
1995-06-1315:00 UTCm62611 40.37NAVD881OUSGSSA
1995-06-1315:00 UTCm72019124.54  1OUSGSSA
1995-08-2313:38 UTCm62610 39.71NGVD291OUSGSSA
1995-08-2313:38 UTCm62611 38.62NAVD881OUSGSSA
1995-08-2313:38 UTCm72019126.29  1OUSGSSA
1995-12-0514:45 UTCm62610 36.98NGVD291OUSGSSA
1995-12-0514:45 UTCm62611 35.89NAVD881OUSGSSA
1995-12-0514:45 UTCm72019129.02  1OUSGSSA
1996-03-1915:56 UTCm62610 36.49NGVD291OUSGSSA
1996-03-1915:56 UTCm62611 35.40NAVD881OUSGSSA
1996-03-1915:56 UTCm72019129.51  1OUSGSSA
1996-05-1520:17 UTCm62610 37.84NGVD291OUSGSSA
1996-05-1520:17 UTCm62611 36.75NAVD881OUSGSSA
1996-05-1520:17 UTCm72019128.16  1OUSGSSA
1996-09-1118:08 UTCm62610 36.74NGVD291OUSGSSA
1996-09-1118:08 UTCm62611 35.65NAVD881OUSGSSA
1996-09-1118:08 UTCm72019129.26  1OUSGSSA
1996-12-1114:57 UTCm62610 36.48NGVD291OUSGSSA
1996-12-1114:57 UTCm62611 35.39NAVD881OUSGSSA
1996-12-1114:57 UTCm72019129.52  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
Status4Groundwater level affected by tide
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.