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Groundwater levels for the Nation

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Agency code = usgs
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  • 401910089120201
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USGS 401910089120201 22N 1W-34.6e

Mclean County, Illinois
Latitude  40°19'10.1", Longitude  89°12'05.2" NAD83
Land-surface elevation 718 feet above NGVD29
The depth of the well is 320 feet below land surface.
The depth of the hole is 320 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 Quaternary System (110QRNR) 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
1990-01-20 D62610 625.00NGVD291L  A
1990-01-20 D62611 624.78NAVD881L  A
1990-01-20 D7201993.00  1L  A
2005-05-05 D62610 630.67NGVD291TUSGSSA
2005-05-05 D62611 630.45NAVD881TUSGSSA
2005-05-05 D7201987.33  1TUSGSSA
2006-05-03 D62610 627.71NGVD29 TUSGSSA
2006-05-03 D62611 627.49NAVD88 TUSGSSA
2006-05-03 D7201990.29   TUSGSSA
2007-05-16 D62610 629.21NGVD291TUSGSSA
2007-05-16 D62611 628.99NAVD881TUSGSSA
2007-05-16 D7201988.79  1TUSGSSA
2008-07-23 D62610 629.50NGVD291TUSGSSA
2008-07-23 D62611 629.28NAVD881TUSGSSA
2008-07-23 D7201988.50  1TUSGSSA
2009-05-14 D62610 631.74NGVD291TUSGSSA
2009-05-14 D62611 631.52NAVD881TUSGSSA
2009-05-14 D7201986.26  1TUSGSSA
2010-05-1318:33 UTCm62610 631.71NGVD291VUSGSSA
2010-05-1318:33 UTCm62611 631.49NAVD881VUSGSSA
2010-05-1318:33 UTCm7201986.29  1VUSGSSA
2011-05-1217:05 UTCm62610 631.35NGVD291VUSGSSA
2011-05-1217:05 UTCm62611 631.13NAVD881VUSGSSA
2011-05-1217:05 UTCm7201986.65  1VUSGSSA
2012-04-1813:30 UTCm62610 626.25NGVD291VUSGSSA
2012-04-1813:30 UTCm62611 626.03NAVD881VUSGSSA
2012-04-1813:30 UTCm7201991.75  1VUSGSSA
2013-05-1015:40 UTCm62610 627.93NGVD291VUSGSSA
2013-05-1015:40 UTCm62611 627.71NAVD881VUSGSSA
2013-05-1015:40 UTCm7201990.07  1VUSGSSA
2015-04-2913:45 UTCm62610 629.20NGVD291VUSGSSA
2015-04-2913:45 UTCm62611 628.98NAVD881VUSGSSA
2015-04-2913:45 UTCm7201988.80  1VUSGSSA
2017-05-0319:00 UTCm62610 630.28NGVD291VUSGSSA
2017-05-0319:00 UTCm62611 630.06NAVD881VUSGSSA
2017-05-0319:00 UTCm7201987.72  1VUSGSSA
2018-08-0114:52 UTCm62610 621.51NGVD291VUSGSSP
2018-08-0114:52 UTCm62611 621.29NAVD881VUSGSSP
2018-08-0114:52 UTCm7201996.49  1VUSGSSP
2022-04-1214:19 UTCm62610 630.42NGVD291VUSGSSP
2022-04-1214:19 UTCm62611 630.20NAVD881VUSGSSP
2022-04-1214:19 UTCm7201987.58  1VUSGSSP
2024-06-2519:50 UTCm62610 687.72NGVD291VUSGSSP
2024-06-2519:50 UTCm62611 687.50NAVD881VUSGSSP
2024-06-2519:50 UTCm7201930.28  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
StatusThe reported water-level measurement represents a static level
Status1Static
Method of measurementLInterpreted from geophysical logs.
Method of measurementTElectric-tape measurement.
Method of measurementVCalibrated electric-tape measurement.
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.
Water-level approval statusPProvisional data subject to revision.