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Groundwater levels for the Nation

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  • 304324081555901
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USGS 304324081555901 N-129

Nassau County, Florida
Latitude  30°43'24", Longitude  81°55'59" NAD27
Land-surface elevation 65 feet above NGVD29
The depth of the well is 570 feet below land surface.
The depth of the hole is 570 feet below land surface.
Output formats
Table of data
Tab-separated data
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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
1989-09-2017:20 UTCm62610 32.87NGVD291Z  A
1989-09-2017:20 UTCm62611 31.89NAVD881Z  A
1989-09-2017:20 UTCm7201932.13  1Z  A
1990-05-1115:50 UTCm62610 33.96NGVD291Z  A
1990-05-1115:50 UTCm62611 32.98NAVD881Z  A
1990-05-1115:50 UTCm7201931.04  1Z  A
1990-09-1317:00 UTCm62610 30.97NGVD291Z  A
1990-09-1317:00 UTCm62611 29.99NAVD881Z  A
1990-09-1317:00 UTCm7201934.03  1Z  A
1991-05-1714:00 UTCm62610 35.76NGVD291Z  A
1991-05-1714:00 UTCm62611 34.78NAVD881Z  A
1991-05-1714:00 UTCm7201929.24  1Z  A
1991-09-1316:30 UTCm62610 37.00NGVD291Z  A
1991-09-1316:30 UTCm62611 36.02NAVD881Z  A
1991-09-1316:30 UTCm7201928.00  1Z  A
1992-05-0614:30 UTCm62610 36.59NGVD291Z  A
1992-05-0614:30 UTCm62611 35.61NAVD881Z  A
1992-05-0614:30 UTCm7201928.41  1Z  A
1992-09-1714:15 UTCm62610 35.03NGVD291Z  A
1992-09-1714:15 UTCm62611 34.05NAVD881Z  A
1992-09-1714:15 UTCm7201929.97  1Z  A
1993-05-1814:00 UTCm62610 37.72NGVD291Z  A
1993-05-1814:00 UTCm62611 36.74NAVD881Z  A
1993-05-1814:00 UTCm7201927.28  1Z  A
1993-09-1414:45 UTCm62610 33.43NGVD291Z  A
1993-09-1414:45 UTCm62611 32.45NAVD881Z  A
1993-09-1414:45 UTCm7201931.57  1Z  A
1994-05-1815:30 UTCm62610 36.21NGVD291Z  A
1994-05-1815:30 UTCm62611 35.23NAVD881Z  A
1994-05-1815:30 UTCm7201928.79  1Z  A
1994-09-2114:00 UTCm62610 35.60NGVD291Z  A
1994-09-2114:00 UTCm62611 34.62NAVD881Z  A
1994-09-2114:00 UTCm7201929.40  1Z  A
1995-05-1713:50 UTCm62610 37.37NGVD291Z  A
1995-05-1713:50 UTCm62611 36.39NAVD881Z  A
1995-05-1713:50 UTCm7201927.63  1Z  A
1995-09-1115:15 UTCm62610 34.99NGVD291Z  A
1995-09-1115:15 UTCm62611 34.01NAVD881Z  A
1995-09-1115:15 UTCm7201930.01  1Z  A
1996-05-2015:20 UTCm62610 35.86NGVD291Z  A
1996-05-2015:20 UTCm62611 34.88NAVD881Z  A
1996-05-2015:20 UTCm7201929.14  1Z  A
1996-09-2015:15 UTCm62610 33.80NGVD291Z  A
1996-09-2015:15 UTCm62611 32.82NAVD881Z  A
1996-09-2015:15 UTCm7201931.20  1Z  A
1997-05-1414:05 UTCm62610 39.51NGVD291Z  A
1997-05-1414:05 UTCm62611 38.53NAVD881Z  A
1997-05-1414:05 UTCm7201925.49  1Z  A
1997-09-0813:40 UTCm62610 39.05NGVD291Z  A
1997-09-0813:40 UTCm62611 38.07NAVD881Z  A
1997-09-0813:40 UTCm7201925.95  1Z  A
1998-05-1113:20 UTCm62610 45.18NGVD291Z  A
1998-05-1113:20 UTCm62611 44.20NAVD881Z  A
1998-05-1113:20 UTCm7201919.82  1Z  A
1998-09-1413:45 UTCm62610 38.53NGVD291Z  A
1998-09-1413:45 UTCm62611 37.55NAVD881Z  A
1998-09-1413:45 UTCm7201926.47  1Z  A
1999-05-1015:55 UTCm62610 38.07NGVD291Z  A
1999-05-1015:55 UTCm62611 37.09NAVD881Z  A
1999-05-1015:55 UTCm7201926.93  1Z  A
1999-09-2013:15 UTCm62610 36.95NGVD291Z  A
1999-09-2013:15 UTCm62611 35.97NAVD881Z  A
1999-09-2013:15 UTCm7201928.05  1Z  A
2004-05-2419:25 UTCm62610 40.90NGVD291TUSGSSA
2004-05-2419:25 UTCm62611 39.92NAVD881TUSGSSA
2004-05-2419:25 UTCm7201924.10  1TUSGSSA

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 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.