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Groundwater levels for the Nation

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Agency code = usgs
site_no list =
  • 304658081571201
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USGS 304658081571201 N-0221

Nassau County, Florida
Latitude  30°46'58", Longitude  81°57'12" NAD27
Land-surface elevation 89 feet above NAVD88
The depth of the well is 812 feet below land surface.
The depth of the hole is 825 feet below land surface.
This well is completed in the Floridan aquifer system (S400FLORDN) national aquifer.
This well is completed in the Floridan Aquifer System (120FLRD) local aquifer.
Output formats
Table of data
Tab-separated data
Graph of data
Reselect period
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
1998-09-1414:05 UTCm62610 39.29NGVD291Z  A
1998-09-1414:05 UTCm62611 38.31NAVD881Z  A
1998-09-1414:05 UTCm7201950.69  1Z  A
1999-05-1016:20 UTCm62610 39.28NGVD291Z  A
1999-05-1016:20 UTCm62611 38.30NAVD881Z  A
1999-05-1016:20 UTCm7201950.70  1Z  A
1999-09-2013:50 UTCm62610 36.74NGVD291Z  A
1999-09-2013:50 UTCm62611 35.76NAVD881Z  A
1999-09-2013:50 UTCm7201953.24  1Z  A
2000-09-1115:20 UTCm62610 35.07NGVD291Z  A
2000-09-1115:20 UTCm62611 34.09NAVD881Z  A
2000-09-1115:20 UTCm7201954.91  1Z  A
2001-05-1413:50 UTCm62610 36.79NGVD291T  A
2001-05-1413:50 UTCm62611 35.81NAVD881T  A
2001-05-1413:50 UTCm7201953.19  1T  A
2001-09-2514:30 UTCm62610 37.51NGVD291T  A
2001-09-2514:30 UTCm62611 36.53NAVD881T  A
2001-09-2514:30 UTCm7201952.47  1T  A
2002-05-1314:50 UTCm62610 36.74NGVD291S  A
2002-05-1314:50 UTCm62611 35.76NAVD881S  A
2002-05-1314:50 UTCm7201953.24  1S  A
2002-09-1614:10 UTCm62610 35.42NGVD291SUSGSSA
2002-09-1614:10 UTCm62611 34.44NAVD881SUSGSSA
2002-09-1614:10 UTCm7201954.56  1SUSGSSA
2003-05-1914:35 UTCm62610 42.78NGVD291SUSGSSA
2003-05-1914:35 UTCm62611 41.80NAVD881SUSGSSA
2003-05-1914:35 UTCm7201947.20  1SUSGSSA
2003-09-1514:45 UTCm62610 42.87NGVD291TUSGSSA
2003-09-1514:45 UTCm62611 41.89NAVD881TUSGSSA
2003-09-1514:45 UTCm7201947.11  1TUSGSSA
2004-05-1714:35 UTCm62610 41.24NGVD291TUSGSSA
2004-05-1714:35 UTCm62611 40.26NAVD881TUSGSSA
2004-05-1714:35 UTCm7201948.74  1TUSGSSA
2004-09-2015:30 UTCm62610 41.08NGVD291TUSGSSA
2004-09-2015:30 UTCm62611 40.10NAVD881TUSGSSA
2004-09-2015:30 UTCm7201948.90  1TUSGSSA
2005-05-2320:00 UTCm62610 45.96NGVD291TUSGSSA
2005-05-2320:00 UTCm62611 44.98NAVD881TUSGSSA
2005-05-2320:00 UTCm7201944.02  1TUSGSSA
2005-09-2219:30 UTCm62610 44.64NGVD291TUSGSSA
2005-09-2219:30 UTCm62611 43.66NAVD881TUSGSSA
2005-09-2219:30 UTCm7201945.34  1TUSGSSA
2006-05-2421:30 UTCm62610 42.27NGVD291TUSGSSA
2006-05-2421:30 UTCm62611 41.29NAVD881TUSGSSA
2006-05-2421:30 UTCm7201947.71  1TUSGSSA
2006-09-2020:45 UTCm62610 38.46NGVD291TUSGSSA
2006-09-2020:45 UTCm62611 37.48NAVD881TUSGSSA
2006-09-2020:45 UTCm7201951.52  1TUSGSSA
2007-05-2319:30 UTCm62610 36.37NGVD291TUSGSSA
2007-05-2319:30 UTCm62611 35.39NAVD881TUSGSSA
2007-05-2319:30 UTCm7201953.61  1TUSGSSA
2007-09-1819:40 UTCm62610 35.25NGVD291TUSGSSA
2007-09-1819:40 UTCm62611 34.27NAVD881TUSGSSA
2007-09-1819:40 UTCm7201954.73  1TUSGSSA
2008-05-1916:40 UTCm62610 38.88NGVD291TUSGSSA
2008-05-1916:40 UTCm62611 37.90NAVD881TUSGSSA
2008-05-1916:40 UTCm7201951.10  1TUSGSSA
2008-09-1515:20 UTCm62610 37.79NGVD291SUSGSSA
2008-09-1515:20 UTCm62611 36.81NAVD881SUSGSSA
2008-09-1515:20 UTCm7201952.19  1SUSGSSA
2009-05-1817:25 UTCm62610 39.99NGVD291TUSGSSA
2009-05-1817:25 UTCm62611 39.01NAVD881TUSGSSA
2009-05-1817:25 UTCm7201949.99  1TUSGSSA
2009-09-2116:35 UTCm62610 39.93NGVD291TUSGSSA
2009-09-2116:35 UTCm62611 38.95NAVD881TUSGSSA
2009-09-2116:35 UTCm7201950.05  1TUSGSSA
2010-05-1718:10 UTCm62610 42.14NGVD291SUSGSSA
2010-05-1718:10 UTCm62611 41.16NAVD881SUSGSSA
2010-05-1718:10 UTCm7201947.84  1SUSGSSA
2010-09-1317:15 UTCm62610 39.10NGVD291SUSGSSA
2010-09-1317:15 UTCm62611 38.12NAVD881SUSGSSA
2010-09-1317:15 UTCm7201950.88  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
Method of measurementSSteel-tape measurement.
Method of measurementTElectric-tape measurement.
Method of measurementZOther.
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.