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Groundwater levels for the Nation

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  • 404539073400407
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USGS 404539073400407 N 10291. 1

Nassau County, New York
Latitude  40°45'39", Longitude  73°40'04" NAD27
Land-surface elevation 124.8 feet above NGVD29
The depth of the well is 126 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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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
1991-03-2014:53 UTCm62610 51.53NGVD29 OUSGSSA
1991-03-2014:53 UTCm62611 50.42NAVD88 OUSGSSA
1991-03-2014:53 UTCm7201973.27   OUSGSSA
1991-10-3116:05 UTCm62610 50.07NGVD291OUSGSSA
1991-10-3116:05 UTCm62611 48.96NAVD881OUSGSSA
1991-10-3116:05 UTCm7201974.73  1OUSGSSA
1992-03-1817:15 UTCm62610 49.57NGVD291OUSGSSA
1992-03-1817:15 UTCm62611 48.46NAVD881OUSGSSA
1992-03-1817:15 UTCm7201975.23  1OUSGSSA
1992-06-0316:48 UTCm62610 48.93NGVD291OUSGSSA
1992-06-0316:48 UTCm62611 47.82NAVD881OUSGSSA
1992-06-0316:48 UTCm7201975.87  1OUSGSSA
1992-12-0316:00 UTCm62610 48.19NGVD291OUSGSSA
1992-12-0316:00 UTCm62611 47.08NAVD881OUSGSSA
1992-12-0316:00 UTCm7201976.61  1OUSGSSA
1993-03-2515:40 UTCm62610 48.68NGVD291OUSGSSA
1993-03-2515:40 UTCm62611 47.57NAVD881OUSGSSA
1993-03-2515:40 UTCm7201976.12  1OUSGSSA
1993-06-2215:01 UTCm62610 48.35NGVD291OUSGSSA
1993-06-2215:01 UTCm62611 47.24NAVD881OUSGSSA
1993-06-2215:01 UTCm7201976.45  1OUSGSSA
1993-12-2918:49 UTCm62610 47.32NGVD291OUSGSSA
1993-12-2918:49 UTCm62611 46.21NAVD881OUSGSSA
1993-12-2918:49 UTCm7201977.48  1OUSGSSA
1994-03-3115:34 UTCm62610 47.45NGVD291OUSGSSA
1994-03-3115:34 UTCm62611 46.34NAVD881OUSGSSA
1994-03-3115:34 UTCm7201977.35  1OUSGSSA
1994-06-0720:53 UTCm62610 48.05NGVD291OUSGSSA
1994-06-0720:53 UTCm62611 46.94NAVD881OUSGSSA
1994-06-0720:53 UTCm7201976.75  1OUSGSSA
1994-12-1415:08 UTCm62610 46.44NGVD291OUSGSSA
1994-12-1415:08 UTCm62611 45.33NAVD881OUSGSSA
1994-12-1415:08 UTCm7201978.36  1OUSGSSA
1995-03-1319:20 UTCm62610 46.67NGVD291OUSGSSA
1995-03-1319:20 UTCm62611 45.56NAVD881OUSGSSA
1995-03-1319:20 UTCm7201978.13  1OUSGSSA
1995-06-1313:15 UTCm62610 45.64NGVD291OUSGSSA
1995-06-1313:15 UTCm62611 44.53NAVD881OUSGSSA
1995-06-1313:15 UTCm7201979.16  1OUSGSSA
1995-12-0515:15 UTCm62610 44.24NGVD291OUSGSSA
1995-12-0515:15 UTCm62611 43.13NAVD881OUSGSSA
1995-12-0515:15 UTCm7201980.56  1OUSGSSA
1996-03-2212:25 UTCm62610 44.53NGVD291OUSGSSA
1996-03-2212:25 UTCm62611 43.42NAVD881OUSGSSA
1996-03-2212:25 UTCm7201980.27  1OUSGSSA
1996-05-1513:20 UTCm62610 44.78NGVD291OUSGSSA
1996-05-1513:20 UTCm62611 43.67NAVD881OUSGSSA
1996-05-1513:20 UTCm7201980.02  1OUSGSSA
1996-09-1015:10 UTCm62610 44.13NGVD291OUSGSSA
1996-09-1015:10 UTCm62611 43.02NAVD881OUSGSSA
1996-09-1015:10 UTCm7201980.67  1OUSGSSA
1996-12-1215:00 UTCm62610 45.95NGVD291OUSGSSA
1996-12-1215:00 UTCm62611 44.84NAVD881OUSGSSA
1996-12-1215:00 UTCm7201978.85  1OUSGSSA
1997-03-1018:14 UTCm62610 47.32NGVD291OUSGSSA
1997-03-1018:14 UTCm62611 46.21NAVD881OUSGSSA
1997-03-1018:14 UTCm7201977.48  1OUSGSSA
1998-03-2320:00 UTCm62610 48.13NGVD291SUSGSSA
1998-03-2320:00 UTCm62611 47.02NAVD881SUSGSSA
1998-03-2320:00 UTCm7201976.67  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
StatusThe reported water-level measurement represents a static level
Status1Static
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.