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Groundwater levels for the Nation

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Agency code = usgs
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  • 411702091070701
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USGS 411702091070701 075N02W20BCDC US Army Corps of Engineers

Louisa County, Iowa
Latitude  41°17'02", Longitude  91°07'07" NAD27
Land-surface elevation 538.10 feet above NGVD29
The depth of the well is 30 feet below land surface.
This well is completed in the Holocene Alluvium (111ALVM) local aquifer.
Output formats
Table of data
Tab-separated data
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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
1992-07-08 D62610 533.80NGVD291S  A
1992-07-08 D62611 533.58NAVD881S  A
1992-07-08 D720194.30  1S  A
1992-07-14 D62610 534.22NGVD291S  A
1992-07-14 D62611 534.00NAVD881S  A
1992-07-14 D720193.88  1S  A
1992-08-16 D62610 533.31NGVD291S  A
1992-08-16 D62611 533.09NAVD881S  A
1992-08-16 D720194.79  1S  A
1992-09-21 D62610 533.29NGVD291S  A
1992-09-21 D62611 533.07NAVD881S  A
1992-09-21 D720194.81  1S  A
1992-10-23 D62610 532.96NGVD291S  A
1992-10-23 D62611 532.74NAVD881S  A
1992-10-23 D720195.14  1S  A
1992-11-23 D62610 534.27NGVD291S  A
1992-11-23 D62611 534.05NAVD881S  A
1992-11-23 D720193.83  1S  A
1992-12-18 D62610 535.33NGVD291S  A
1992-12-18 D62611 535.11NAVD881S  A
1992-12-18 D720192.77  1S  A
1993-01-29 D62610 534.44NGVD291S  A
1993-01-29 D62611 534.22NAVD881S  A
1993-01-29 D720193.66  1S  A
1993-02-26 D62610 533.78NGVD291S  A
1993-02-26 D62611 533.56NAVD881S  A
1993-02-26 D720194.32  1S  A
1993-03-29 D62610 535.90NGVD291S  A
1993-03-29 D62611 535.68NAVD881S  A
1993-03-29 D720192.20  1S  A
1993-04-26 D62610 536.93NGVD291S  A
1993-04-26 D62611 536.71NAVD881S  A
1993-04-26 D720191.17  1S  A
1993-05-24 D62610 536.33NGVD291S  A
1993-05-24 D62611 536.11NAVD881S  A
1993-05-24 D720191.77  1S  A
1993-06-23 D62610 536.54NGVD291S  A
1993-06-23 D62611 536.32NAVD881S  A
1993-06-23 D720191.56  1S  A
1993-07-27 D62610 537.09NGVD291Z  A
1993-07-27 D62611 536.87NAVD881Z  A
1993-07-27 D720191.01  1Z  A
1993-08-23 D62610 536.89NGVD291Z  A
1993-08-23 D62611 536.67NAVD881Z  A
1993-08-23 D720191.21  1Z  A
1993-09-23 D62610 535.10NGVD291Z  A
1993-09-23 D62611 534.88NAVD881Z  A
1993-09-23 D720193.00  1Z  A
1993-10-29 D62610 533.71NGVD291Z  A
1993-10-29 D62611 533.49NAVD881Z  A
1993-10-29 D720194.39  1Z  A
1993-11-30 D62610 533.51NGVD291Z  A
1993-11-30 D62611 533.29NAVD881Z  A
1993-11-30 D720194.59  1Z  A
1993-12-28 D62610 533.34NGVD291Z  A
1993-12-28 D62611 533.12NAVD881Z  A
1993-12-28 D720194.76  1Z  A
1994-01-26 D62610 533.20NGVD291Z  A
1994-01-26 D62611 532.98NAVD881Z  A
1994-01-26 D720194.90  1Z  A
1994-02-28 D62610 534.69NGVD291Z  A
1994-02-28 D62611 534.47NAVD881Z  A
1994-02-28 D720193.41  1Z  A
1994-03-28 D62610 534.53NGVD291Z  A
1994-03-28 D62611 534.31NAVD881Z  A
1994-03-28 D720193.57  1Z  A

Explanation
SectionCodeDescription
Water-level date-time accuracyDDate is accurate to the Day
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 measurementZOther.
Measuring agencyNot determined
Source of measurementNot determined
Water-level approval statusAApproved for publication -- Processing and review completed.