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Groundwater levels for the Nation

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  • 421301088191501
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USGS 421301088191501 43N8E-8.2c

Mchenry County, Illinois
Latitude  42°13'01.0", Longitude  88°19'15.2" NAD83
Land-surface elevation 900 feet above NGVD29
The depth of the well is 46.1 feet below land surface.
The depth of the hole is 46.6 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
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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
2000-06-08 D62610 875.98NGVD291TUSGSSA
2000-06-08 D62611 875.83NAVD881TUSGSSA
2000-06-08 D7201924.02  1TUSGSSA
2005-06-21 D62610 874.16NGVD291TUSGSSA
2005-06-21 D62611 874.01NAVD881TUSGSSA
2005-06-21 D7201925.84  1TUSGSSA
2006-05-24 D62610 873.08NGVD291TUSGSSA
2006-05-24 D62611 872.93NAVD881TUSGSSA
2006-05-24 D7201926.92  1TUSGSSA
2007-07-1216:50 UTCm62610 875.22NGVD291TUSGSSA
2007-07-1216:50 UTCm62611 875.07NAVD881TUSGSSA
2007-07-1216:50 UTCm7201924.78  1TUSGSSA
2008-08-20 D62610 877.14NGVD291TUSGSSA
2008-08-20 D62611 876.99NAVD881TUSGSSA
2008-08-20 D7201922.86  1TUSGSSA
2009-03-0416:05 UTCm62610 876.82NGVD291TUSGSSA
2009-03-0416:05 UTCm62611 876.67NAVD881TUSGSSA
2009-03-0416:05 UTCm7201923.18  1TUSGSSA
2009-07-2723:00 UTCm62610 878.57NGVD291TUSGSSA
2009-07-2723:00 UTCm62611 878.42NAVD881TUSGSSA
2009-07-2723:00 UTCm7201921.43  1TUSGSSA
2010-07-13 D62610 877.72NGVD291VUSGSSA
2010-07-13 D62611 877.57NAVD881VUSGSSA
2010-07-13 D7201922.28  1VUSGSSA
2011-02-2316:46 UTCm62610 875.34NGVD291VUSGSSA
2011-02-2316:46 UTCm62611 875.19NAVD881VUSGSSA
2011-02-2316:46 UTCm7201924.66  1VUSGSSA
2011-05-0420:20 UTCm62610 876.82NGVD291VUSGSSA
2011-05-0420:20 UTCm62611 876.67NAVD881VUSGSSA
2011-05-0420:20 UTCm7201923.18  1VUSGSSA
2011-05-2519:43 UTCm62610 877.19NGVD291VUSGSSA
2011-05-2519:43 UTCm62611 877.04NAVD881VUSGSSA
2011-05-2519:43 UTCm7201922.81  1VUSGSSA
2011-08-0221:45 UTCm62610 877.79NGVD291VUSGSSA
2011-08-0221:45 UTCm62611 877.64NAVD881VUSGSSA
2011-08-0221:45 UTCm7201922.21  1VUSGSSA
2011-10-1121:47 UTCm62610 876.90NGVD291VUSGSSA
2011-10-1121:47 UTCm62611 876.75NAVD881VUSGSSA
2011-10-1121:47 UTCm7201923.10  1VUSGSSA
2012-03-0623:11 UTCm62610 875.85NGVD291VUSGSSA
2012-03-0623:11 UTCm62611 875.70NAVD881VUSGSSA
2012-03-0623:11 UTCm7201924.15  1VUSGSSA
2012-05-2219:25 UTCm62610 875.94NGVD291VUSGSSA
2012-05-2219:25 UTCm62611 875.79NAVD881VUSGSSA
2012-05-2219:25 UTCm7201924.06  1VUSGSSA
2012-10-09 D62610 874.24NGVD291VUSGSSA
2012-10-09 D62611 874.09NAVD881VUSGSSA
2012-10-09 D7201925.76  1VUSGSSA
2012-10-0918:29 UTCm62610 874.24NGVD291VUSGSSA
2012-10-0918:29 UTCm62611 874.09NAVD881VUSGSSA
2012-10-0918:29 UTCm7201925.76  1VUSGSSA
2013-04-1520:35 UTCm62610 868.52NGVD291VUSGSSA
2013-04-1520:35 UTCm62611 868.37NAVD881VUSGSSA
2013-04-1520:35 UTCm7201931.48  1VUSGSSA
2013-10-2414:46 UTCm62610 875.53NGVD291VUSGSSA
2013-10-2414:46 UTCm62611 875.38NAVD881VUSGSSA
2013-10-2414:46 UTCm7201924.47  1VUSGSSA
2014-04-1421:11 UTCm62610 874.95NGVD291VUSGSSA
2014-04-1421:11 UTCm62611 874.80NAVD881VUSGSSA
2014-04-1421:11 UTCm7201925.05  1VUSGSSA
2014-10-0617:52 UTCm62610 875.56NGVD291VUSGSSA
2014-10-0617:52 UTCm62611 875.41NAVD881VUSGSSA
2014-10-0617:52 UTCm7201924.44  1VUSGSSA
2015-04-0616:46 UTCm62610 873.89NGVD291VUSGSSA
2015-04-0616:46 UTCm62611 873.74NAVD881VUSGSSA
2015-04-0616:46 UTCm7201926.11  1VUSGSSA
2015-05-1119:30 UTCm62610 874.25NGVD291VUSGSSA
2015-05-1119:30 UTCm62611 874.10NAVD881VUSGSSA
2015-05-1119:30 UTCm7201925.75  1VUSGSSA
2015-10-0618:32 UTCm62610 875.34NGVD291VUSGSSA
2015-10-0618:32 UTCm62611 875.19NAVD881VUSGSSA
2015-10-0618:32 UTCm7201924.66  1VUSGSSA
2016-03-2919:13 UTCm62610 876.02NGVD291VUSGSSA
2016-03-2919:13 UTCm62611 875.87NAVD881VUSGSSA
2016-03-2919:13 UTCm7201923.98  1VUSGSSA
2016-04-1418:15 UTCm62610 876.20NGVD291VUSGSSA
2016-04-1418:15 UTCm62611 876.05NAVD881VUSGSSA
2016-04-1418:15 UTCm7201923.80  1VUSGSSA
2016-05-0600:00 UTCm62610 876.37NGVD291VUSGSSA
2016-05-0600:00 UTCm62611 876.22NAVD881VUSGSSA
2016-05-0600:00 UTCm7201923.63  1VUSGSSA
2016-05-2018:23 UTCm62610 876.63NGVD291VUSGSSA
2016-05-2018:23 UTCm62611 876.48NAVD881VUSGSSA
2016-05-2018:23 UTCm7201923.37  1VUSGSSA
2016-07-2620:00 UTCm62610 876.36NGVD291VUSGSSA
2016-07-2620:00 UTCm62611 876.21NAVD881VUSGSSA
2016-07-2620:00 UTCm7201923.64  1VUSGSSA
2016-09-2719:11 UTCm62610 876.19NGVD291VUSGSSA
2016-09-2719:11 UTCm62611 876.04NAVD881VUSGSSA
2016-09-2719:11 UTCm7201923.81  1VUSGSSA
2016-11-2920:07 UTCm62610 858.03NGVD291VUSGSSA
2016-11-2920:07 UTCm62611 857.88NAVD881VUSGSSA
2016-11-2920:07 UTCm7201941.97  1VUSGSSA
2017-04-2418:35 UTCm62610 876.19NGVD291VUSGSSA
2017-04-2418:35 UTCm62611 876.04NAVD881VUSGSSA
2017-04-2418:35 UTCm7201923.81  1VUSGSSA
2019-07-0919:59 UTCm62610 879.96NGVD291VUSGSSA
2019-07-0919:59 UTCm62611 879.81NAVD881VUSGSSA
2019-07-0919:59 UTCm7201920.04  1VUSGSSA
2020-06-2206:00 UTCm62610 881.00NGVD291VUSGSSA
2020-06-2206:00 UTCm62611 880.85NAVD881VUSGSSA
2020-06-2206:00 UTCm7201919.00  1VUSGSSA
2021-03-1218:28 UTCm62610 877.09NGVD291VUSGSSA
2021-03-1218:28 UTCm62611 876.94NAVD881VUSGSSA
2021-03-1218:28 UTCm7201922.91  1VUSGSSA
2021-05-0512:46 UTCm62610 876.85NGVD291VUSGSSA
2021-05-0512:46 UTCm62611 876.70NAVD881VUSGSSA
2021-05-0512:46 UTCm7201923.15  1VUSGSSA
2024-06-1717:00 UTCm62610 876.10NGVD291VUSGSSA
2024-06-1717:00 UTCm62611 875.95NAVD881VUSGSSA
2024-06-1717:00 UTCm7201923.90  1VUSGSSA

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 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.