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Groundwater levels for the Nation

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  • 421145088194801
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USGS 421145088194801 43N8E-20.6h1 (17-ALG-S)

Mchenry County, Illinois
Latitude  42°11'45", Longitude  88°19'48" NAD83
Land-surface elevation 879.95 feet above NAVD88
The depth of the well is 47.3 feet below land surface.
The depth of the hole is 189 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.
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Water-level
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accuracy
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Parameter
code
Water
level,
feet
below
land
surface
Water
level,
feet
above
specific
vertical
datum
Referenced
vertical
datum
?
 
Status
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Method of
measurement
?
 
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agency
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measurement
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Water-level
approval
status
2010-09-2218:04 UTCm62610 877.67NGVD291VUSGSSA
2010-09-2218:04 UTCm62611 877.51NAVD881VUSGSSA
2010-09-2218:04 UTCm720192.52  1VUSGSSA
2010-09-2914:30 UTCm62610 878.22NGVD291VUSGSSA
2010-09-2914:30 UTCm62611 878.06NAVD881VUSGSSA
2010-09-2914:30 UTCm720191.97  1VUSGSSA
2011-02-2315:55 UTCm62610 881.08NGVD291VUSGSSA
2011-02-2315:55 UTCm62611 880.92NAVD881VUSGSSA
2011-02-2315:55 UTCm72019-0.89  1VUSGSSA
2011-04-2616:31 UTCm62610 882.95NGVD291VUSGSSA
2011-04-2616:31 UTCm62611 882.79NAVD881VUSGSSA
2011-04-2616:31 UTCm72019-2.76  1VUSGSSA
2011-05-2519:10 UTCm62610 881.88NGVD291VUSGSSA
2011-05-2519:10 UTCm62611 881.72NAVD881VUSGSSA
2011-05-2519:10 UTCm72019-1.69  1VUSGSSA
2011-08-0220:50 UTCm62610 880.79NGVD291VUSGSSA
2011-08-0220:50 UTCm62611 880.63NAVD881VUSGSSA
2011-08-0220:50 UTCm72019-0.60  1VUSGSSA
2011-10-1120:46 UTCm62610 878.39NGVD291VUSGSSA
2011-10-1120:46 UTCm62611 878.23NAVD881VUSGSSA
2011-10-1120:46 UTCm720191.80  1VUSGSSA
2012-03-0622:34 UTCm62610 881.44NGVD291VUSGSSA
2012-03-0622:34 UTCm62611 881.28NAVD881VUSGSSA
2012-03-0622:34 UTCm72019-1.25  1VUSGSSA
2012-10-0918:04 UTCm62610 873.40NGVD291VUSGSSA
2012-10-0918:04 UTCm62611 873.24NAVD881VUSGSSA
2012-10-0918:04 UTCm720196.79  1VUSGSSA
2013-04-1519:47 UTCm62610 881.93NGVD291VUSGSSA
2013-04-1519:47 UTCm62611 881.77NAVD881VUSGSSA
2013-04-1519:47 UTCm72019-1.74  1VUSGSSA
2013-10-2415:11 UTCm62610 876.62NGVD291VUSGSSA
2013-10-2415:11 UTCm62611 876.46NAVD881VUSGSSA
2013-10-2415:11 UTCm720193.57  1VUSGSSA
2014-04-1420:05 UTCm62610 881.66NGVD291VUSGSSA
2014-04-1420:05 UTCm62611 881.50NAVD881VUSGSSA
2014-04-1420:05 UTCm72019-1.47  1VUSGSSA
2014-10-0617:12 UTCm62610 878.32NGVD291VUSGSSA
2014-10-0617:12 UTCm62611 878.16NAVD881VUSGSSA
2014-10-0617:12 UTCm720191.87  1VUSGSSA
2015-04-0615:55 UTCm62610 880.22NGVD291VUSGSSA
2015-04-0615:55 UTCm62611 880.06NAVD881VUSGSSA
2015-04-0615:55 UTCm72019-0.03  1VUSGSSA
2015-10-0617:29 UTCm62610 877.89NGVD291VUSGSSA
2015-10-0617:29 UTCm62611 877.73NAVD881VUSGSSA
2015-10-0617:29 UTCm720192.30  1VUSGSSA
2016-03-2921:15 UTCm62610 881.74NGVD291VUSGSSA
2016-03-2921:15 UTCm62611 881.58NAVD881VUSGSSA
2016-03-2921:15 UTCm72019-1.55  1VUSGSSA
2017-04-1222:19 UTCm62610 881.61NGVD291VUSGSSA
2017-04-1222:19 UTCm62611 881.45NAVD881VUSGSSA
2017-04-1222:19 UTCm72019-1.42  1VUSGSSA
2017-09-0619:05 UTCm62610 877.89NGVD291VUSGSSA
2017-09-0619:05 UTCm62611 877.73NAVD881VUSGSSA
2017-09-0619:05 UTCm720192.30  1VUSGSSA
2017-11-1520:04 UTCm62610 880.29NGVD291VUSGSSA
2017-11-1520:04 UTCm62611 880.13NAVD881VUSGSSA
2017-11-1520:04 UTCm72019-0.10  1VUSGSSA
2018-03-1218:24 UTCm62610 880.97NGVD291VUSGSSA
2018-03-1218:24 UTCm62611 880.81NAVD881VUSGSSA
2018-03-1218:24 UTCm72019-0.78  1VUSGSSA
2018-03-2217:09 UTCm62610 880.18NGVD291VUSGSSA
2018-03-2217:09 UTCm62611 880.02NAVD881VUSGSSA
2018-03-2217:09 UTCm720190.01  1VUSGSSA
2018-03-2918:15 UTCm62610 880.26NGVD291VUSGSSA
2018-03-2918:15 UTCm62611 880.10NAVD881VUSGSSA
2018-03-2918:15 UTCm72019-0.07  1VUSGSSA
2018-04-0216:50 UTCm62610 880.08NGVD291VUSGSSA
2018-04-0216:50 UTCm62611 879.92NAVD881VUSGSSA
2018-04-0216:50 UTCm720190.11  1VUSGSSA
2018-04-1616:31 UTCm62610 881.17NGVD291VUSGSSA
2018-04-1616:31 UTCm62611 881.01NAVD881VUSGSSA
2018-04-1616:31 UTCm72019-0.98  1VUSGSSA
2018-08-0316:00 UTCm62610 878.12NGVD291VUSGSSA
2018-08-0316:00 UTCm62611 877.96NAVD881VUSGSSA
2018-08-0316:00 UTCm720192.07  1VUSGSSA
2018-11-0818:20 UTCm62610 881.83NGVD291VUSGSSA
2018-11-0818:20 UTCm62611 881.67NAVD881VUSGSSA
2018-11-0818:20 UTCm72019-1.64  1VUSGSSA
2019-03-1215:42 UTCm62610 881.26NGVD291VUSGSSA
2019-03-1215:42 UTCm62611 881.10NAVD881VUSGSSA
2019-03-1215:42 UTCm72019-1.07  1VUSGSSA
2019-06-2716:04 UTCm62610 879.83NGVD291VUSGSSA
2019-06-2716:04 UTCm62611 879.67NAVD881VUSGSSA
2019-06-2716:04 UTCm720190.36  1VUSGSSA
2019-09-0316:39 UTCm62610 878.46NGVD291VUSGSSA
2019-09-0316:39 UTCm62611 878.30NAVD881VUSGSSA
2019-09-0316:39 UTCm720191.73  1VUSGSSA
2019-12-0516:47 UTCm62610 881.35NGVD291VUSGSSA
2019-12-0516:47 UTCm62611 881.19NAVD881VUSGSSA
2019-12-0516:47 UTCm72019-1.16  1VUSGSSA
2020-02-2416:40 UTCm62610 880.73NGVD291VUSGSSA
2020-02-2416:40 UTCm62611 880.57NAVD881VUSGSSA
2020-02-2416:40 UTCm72019-0.54  1VUSGSSA
2020-04-2414:39 UTCm62610 880.68NGVD291VUSGSSA
2020-04-2414:39 UTCm62611 880.52NAVD881VUSGSSA
2020-04-2414:39 UTCm72019-0.49  1VUSGSSA
2020-06-2214:45 UTCm62610 879.50NGVD291VUSGSSA
2020-06-2214:45 UTCm62611 879.34NAVD881VUSGSSA
2020-06-2214:45 UTCm720190.69  1VUSGSSA
2020-07-3115:59 UTCm62610 878.20NGVD291VUSGSSA
2020-07-3115:59 UTCm62611 878.04NAVD881VUSGSSA
2020-07-3115:59 UTCm720191.99  1VUSGSSA
2020-11-1720:19 UTCm62610 878.96NGVD291VUSGSSA
2020-11-1720:19 UTCm62611 878.80NAVD881VUSGSSA
2020-11-1720:19 UTCm720191.23  1VUSGSSA
2021-02-1016:48 UTCm62610 879.04NGVD291VUSGSSA
2021-02-1016:48 UTCm62611 878.88NAVD881VUSGSSA
2021-02-1016:48 UTCm720191.15  1VUSGSSA
2021-05-0416:15 UTCm62610 879.15NGVD291VUSGSSA
2021-05-0416:15 UTCm62611 878.99NAVD881VUSGSSA
2021-05-0416:15 UTCm720191.04  1VUSGSSA
2021-08-2316:19 UTCm62610 878.15NGVD291VUSGSSA
2021-08-2316:19 UTCm62611 877.99NAVD881VUSGSSA
2021-08-2316:19 UTCm720192.04  1VUSGSSA
2021-12-0121:20 UTCm62610 878.00NGVD291VUSGSSA
2021-12-0121:20 UTCm62611 877.84NAVD881VUSGSSA
2021-12-0121:20 UTCm720192.19  1VUSGSSA
2022-03-2818:53 UTCm62610 881.52NGVD291VUSGSSA
2022-03-2818:53 UTCm62611 881.36NAVD881VUSGSSA
2022-03-2818:53 UTCm72019-1.33  1VUSGSSA
2022-07-2018:25 UTCm62610 879.60NGVD291VUSGSSA
2022-07-2018:25 UTCm62611 879.44NAVD881VUSGSSA
2022-07-2018:25 UTCm720190.59  1VUSGSSA
2022-11-0820:26 UTCm62610 878.95NGVD291VUSGSSA
2022-11-0820:26 UTCm62611 878.79NAVD881VUSGSSA
2022-11-0820:26 UTCm720191.24  1VUSGSSA
2023-02-0818:29 UTCm62610 880.24NGVD291VUSGSSA
2023-02-0818:29 UTCm62611 880.08NAVD881VUSGSSA
2023-02-0818:29 UTCm72019-0.05  1VUSGSSA
2023-05-1520:51 UTCm62610 879.75NGVD291VUSGSSA
2023-05-1520:51 UTCm62611 879.59NAVD881VUSGSSA
2023-05-1520:51 UTCm720190.44  1VUSGSSA
2023-12-0719:51 UTCm62610 880.36NGVD291VUSGSSA
2023-12-0719:51 UTCm62611 880.20NAVD881VUSGSSA
2023-12-0719:51 UTCm72019-0.25  1VUSGSSA
2024-03-2719:31 UTCm62610 881.51NGVD291VUSGSSA
2024-03-2719:31 UTCm62611 881.35NAVD881VUSGSSA
2024-03-2719:31 UTCm72019-1.40  1VUSGSSA
2024-07-2219:49 UTCm62610 881.21NGVD291VUSGSSA
2024-07-2219:49 UTCm62611 881.05NAVD881VUSGSSA
2024-07-2219:49 UTCm72019-1.10  1VUSGSSA

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 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.