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Groundwater levels for the Nation

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Agency code = usgs
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  • 412136091270501
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USGS 412136091270501 076N05W29ACD

Louisa County, Iowa
Latitude  41°21'36.9", Longitude  91°27'05.1" NAD83
Land-surface elevation 625 feet above NGVD29
The depth of the well is 54 feet below land surface.
This well is completed in the Sand and gravel aquifers (glaciated regions) (N100GLCIAL) national aquifer.
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
1998-06-25 D62610 602.10NGVD291SUSGSSP
1998-06-25 D62611 601.92NAVD881SUSGSSP
1998-06-25 D7201922.90  1SUSGSSP
2007-06-2716:00 UTCm62610 602.38NGVD291TUSGSSA
2007-06-2716:00 UTCm62611 602.20NAVD881TUSGSSA
2007-06-2716:00 UTCm7201922.62  1TUSGSSA
2009-07-1414:00 UTCm62610 602.17NGVD291TUSGSSA
2009-07-1414:00 UTCm62611 601.99NAVD881TUSGSSA
2009-07-1414:00 UTCm7201922.83  1TUSGSSA
2015-07-0617:20 UTCm62610 601.56NGVD291TUSGSSP
2015-07-0617:20 UTCm62611 601.38NAVD881TUSGSSP
2015-07-0617:20 UTCm7201923.44  1TUSGSSP
2023-07-2615:25 UTCm62610 599.17NGVD291VUSGSSP
2023-07-2615:25 UTCm62611 598.99NAVD881VUSGSSP
2023-07-2615:25 UTCm7201925.83  1VUSGSSP

Explanation
SectionCodeDescription
Water-level date-time accuracyDDate is accurate to the Day
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 measurementVCalibrated electric-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.
Water-level approval statusPProvisional data subject to revision.