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Groundwater levels for Illinois

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USGS 421145088194802 43N8E-20.6h2 (17-ALG-D)

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 187.8 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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Parameter
code
Water
level,
feet
below
land
surface
Water
level,
feet
above
specific
vertical
datum
Referenced
vertical
datum
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Status
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2010-01-2019:58 UTCm62610 771.71NGVD291VUSGSSA
2010-01-2019:58 UTCm62611 771.55NAVD881VUSGSSA
2010-01-2019:58 UTCm72019108.48  1VUSGSSA
2010-04-2714:03 UTCm62610 775.82NGVD291VUSGSSA
2010-04-2714:03 UTCm62611 775.66NAVD881VUSGSSA
2010-04-2714:03 UTCm72019104.37  1VUSGSSA
2010-09-2818:09 UTCm62610 781.53NGVD291VUSGSSA
2010-09-2818:09 UTCm62611 781.37NAVD881VUSGSSA
2010-09-2818:09 UTCm7201998.66  1VUSGSSA
2010-10-2814:59 UTCm62610 781.42NGVD291VUSGSSA
2010-10-2814:59 UTCm62611 781.26NAVD881VUSGSSA
2010-10-2814:59 UTCm7201998.77  1VUSGSSA
2010-11-1613:48 UTCm62610 783.50NGVD291VUSGSSA
2010-11-1613:48 UTCm62611 783.34NAVD881VUSGSSA
2010-11-1613:48 UTCm7201996.69  1VUSGSSA
2010-11-1616:49 UTCm62610 783.42NGVD291VUSGSSA
2010-11-1616:49 UTCm62611 783.26NAVD881VUSGSSA
2010-11-1616:49 UTCm7201996.77  1VUSGSSA
2011-02-2316:04 UTCm62610 772.39NGVD291VUSGSSA
2011-02-2316:04 UTCm62611 772.23NAVD881VUSGSSA
2011-02-2316:04 UTCm72019107.80  1VUSGSSA
2011-05-2518:59 UTCm62610 780.27NGVD291VUSGSSA
2011-05-2518:59 UTCm62611 780.11NAVD881VUSGSSA
2011-05-2518:59 UTCm7201999.92  1VUSGSSA
2011-08-0221:01 UTCm62610 772.62NGVD291VUSGSSA
2011-08-0221:01 UTCm62611 772.46NAVD881VUSGSSA
2011-08-0221:01 UTCm72019107.57  1VUSGSSA
2011-10-1121:15 UTCm62610 774.32NGVD291VUSGSSA
2011-10-1121:15 UTCm62611 774.16NAVD881VUSGSSA
2011-10-1121:15 UTCm72019105.87  1VUSGSSA
2012-03-0622:08 UTCm62610 785.19NGVD291VUSGSSA
2012-03-0622:08 UTCm62611 785.03NAVD881VUSGSSA
2012-03-0622:08 UTCm7201995.00  1VUSGSSA
2012-10-0918:06 UTCm62610 769.60NGVD291VUSGSSA
2012-10-0918:06 UTCm62611 769.44NAVD881VUSGSSA
2012-10-0918:06 UTCm72019110.59  1VUSGSSA
2013-04-1519:51 UTCm62610 783.59NGVD291VUSGSSA
2013-04-1519:51 UTCm62611 783.43NAVD881VUSGSSA
2013-04-1519:51 UTCm7201996.60  1VUSGSSA
2013-10-2415:32 UTCm62610 781.12NGVD291VUSGSSA
2013-10-2415:32 UTCm62611 780.96NAVD881VUSGSSA
2013-10-2415:32 UTCm7201999.07  1VUSGSSA
2014-04-1420:37 UTCm62610 780.20NGVD291VUSGSSA
2014-04-1420:37 UTCm62611 780.04NAVD881VUSGSSA
2014-04-1420:37 UTCm7201999.99  1VUSGSSA
2014-10-0617:32 UTCm62610 784.61NGVD291VUSGSSA
2014-10-0617:32 UTCm62611 784.45NAVD881VUSGSSA
2014-10-0617:32 UTCm7201995.58  1VUSGSSA
2015-04-0615:33 UTCm62610 790.20NGVD291VUSGSSA
2015-04-0615:33 UTCm62611 790.04NAVD881VUSGSSA
2015-04-0615:33 UTCm7201989.99  1VUSGSSA
2015-10-0618:00 UTCm62610 785.49NGVD291VUSGSSA
2015-10-0618:00 UTCm62611 785.33NAVD881VUSGSSA
2015-10-0618:00 UTCm7201994.70  1VUSGSSA
2016-03-2918:01 UTCm62610 795.72NGVD291VUSGSSA
2016-03-2918:01 UTCm62611 795.56NAVD881VUSGSSA
2016-03-2918:01 UTCm7201984.47  1VUSGSSA
2016-11-2118:18 UTCm62610 779.88NGVD291VUSGSSA
2016-11-2118:18 UTCm62611 779.72NAVD881VUSGSSA
2016-11-2118:18 UTCm72019100.31  1VUSGSSA
2017-05-1815:13 UTCm62610 777.74NGVD291VUSGSSA
2017-05-1815:13 UTCm62611 777.58NAVD881VUSGSSA
2017-05-1815:13 UTCm72019102.45  1VUSGSSA
2017-09-0617:47 UTCm62610 783.91NGVD291VUSGSSA
2017-09-0617:47 UTCm62611 783.75NAVD881VUSGSSA
2017-09-0617:47 UTCm7201996.28  1VUSGSSA
2017-11-1519:25 UTCm62610 789.30NGVD291VUSGSSA
2017-11-1519:25 UTCm62611 789.14NAVD881VUSGSSA
2017-11-1519:25 UTCm7201990.89  1VUSGSSA
2018-03-1217:43 UTCm62610 788.04NGVD291VUSGSSA
2018-03-1217:43 UTCm62611 787.88NAVD881VUSGSSA
2018-03-1217:43 UTCm7201992.15  1VUSGSSA
2018-03-2217:21 UTCm62610 786.70NGVD291VUSGSSA
2018-03-2217:21 UTCm62611 786.54NAVD881VUSGSSA
2018-03-2217:21 UTCm7201993.49  1VUSGSSA
2018-05-2313:25 UTCm62610 781.09NGVD291VUSGSSA
2018-05-2313:25 UTCm62611 780.93NAVD881VUSGSSA
2018-05-2313:25 UTCm7201999.10  1VUSGSSA
2018-08-0314:41 UTCm62610 777.82NGVD291VUSGSSA
2018-08-0314:41 UTCm62611 777.66NAVD881VUSGSSA
2018-08-0314:41 UTCm72019102.37  1VUSGSSA
2018-11-0517:03 UTCm62610 789.37NGVD291VUSGSSA
2018-11-0517:03 UTCm62611 789.21NAVD881VUSGSSA
2018-11-0517:03 UTCm7201990.82  1VUSGSSA
2019-02-0717:55 UTCm62610 785.36NGVD291VUSGSSA
2019-02-0717:55 UTCm62611 785.20NAVD881VUSGSSA
2019-02-0717:55 UTCm7201994.83  1VUSGSSA
2019-06-2716:37 UTCm62610 789.22NGVD291VUSGSSA
2019-06-2716:37 UTCm62611 789.06NAVD881VUSGSSA
2019-06-2716:37 UTCm7201990.97  1VUSGSSA
2019-09-0315:57 UTCm62610 783.42NGVD291VUSGSSA
2019-09-0315:57 UTCm62611 783.26NAVD881VUSGSSA
2019-09-0315:57 UTCm7201996.77  1VUSGSSA
2019-12-0515:42 UTCm62610 792.00NGVD291VUSGSSA
2019-12-0515:42 UTCm62611 791.84NAVD881VUSGSSA
2019-12-0515:42 UTCm7201988.19  1VUSGSSA
2020-02-2415:30 UTCm62610 785.48NGVD291VUSGSSA
2020-02-2415:30 UTCm62611 785.32NAVD881VUSGSSA
2020-02-2415:30 UTCm7201994.71  1VUSGSSA
2020-04-2413:36 UTCm62610 784.50NGVD291VUSGSSA
2020-04-2413:36 UTCm62611 784.34NAVD881VUSGSSA
2020-04-2413:36 UTCm7201995.69  1VUSGSSA
2020-07-2114:31 UTCm62610 776.10NGVD291VUSGSSA
2020-07-2114:31 UTCm62611 775.94NAVD881VUSGSSA
2020-07-2114:31 UTCm72019104.09  1VUSGSSA
2020-07-3114:23 UTCm62610 773.04NGVD291VUSGSSA
2020-07-3114:23 UTCm62611 772.88NAVD881VUSGSSA
2020-07-3114:23 UTCm72019107.15  1VUSGSSA
2020-11-1719:22 UTCm62610 783.08NGVD291VUSGSSA
2020-11-1719:22 UTCm62611 782.92NAVD881VUSGSSA
2020-11-1719:22 UTCm7201997.11  1VUSGSSA
2021-02-1016:00 UTCm62610 777.14NGVD291VUSGSSA
2021-02-1016:00 UTCm62611 776.98NAVD881VUSGSSA
2021-02-1016:00 UTCm72019103.05  1VUSGSSA
2021-05-0415:18 UTCm62610 775.37NGVD291VUSGSSA
2021-05-0415:18 UTCm62611 775.21NAVD881VUSGSSA
2021-05-0415:18 UTCm72019104.82  1VUSGSSA
2021-08-2315:30 UTCm62610 776.15NGVD291VUSGSSA
2021-08-2315:30 UTCm62611 775.99NAVD881VUSGSSA
2021-08-2315:30 UTCm72019104.04  1VUSGSSA
2021-12-0121:33 UTCm62610 790.61NGVD291VUSGSSA
2021-12-0121:33 UTCm62611 790.45NAVD881VUSGSSA
2021-12-0121:33 UTCm7201989.58  1VUSGSSA
2022-03-2817:22 UTCm62610 788.32NGVD291VUSGSSA
2022-03-2817:22 UTCm62611 788.16NAVD881VUSGSSA
2022-03-2817:22 UTCm7201991.87  1VUSGSSA
2022-07-2017:09 UTCm62610 777.89NGVD291VUSGSSA
2022-07-2017:09 UTCm62611 777.73NAVD881VUSGSSA
2022-07-2017:09 UTCm72019102.30  1VUSGSSA
2022-11-0819:29 UTCm62610 785.07NGVD291VUSGSSA
2022-11-0819:29 UTCm62611 784.91NAVD881VUSGSSA
2022-11-0819:29 UTCm7201995.12  1VUSGSSA
2023-02-0817:19 UTCm62610 793.64NGVD291VUSGSSA
2023-02-0817:19 UTCm62611 793.48NAVD881VUSGSSA
2023-02-0817:19 UTCm7201986.55  1VUSGSSA
2023-05-1519:53 UTCm62610 794.71NGVD291VUSGSSA
2023-05-1519:53 UTCm62611 794.55NAVD881VUSGSSA
2023-05-1519:53 UTCm7201985.48  1VUSGSSA
2023-08-2818:37 UTCm62610 780.79NGVD291VUSGSSA
2023-08-2818:37 UTCm62611 780.63NAVD881VUSGSSA
2023-08-2818:37 UTCm7201999.32  1VUSGSSA
2023-12-0718:18 UTCm62610 794.03NGVD291VUSGSSA
2023-12-0718:18 UTCm62611 793.87NAVD881VUSGSSA
2023-12-0718:18 UTCm7201986.08  1VUSGSSA
2024-03-2718:09 UTCm62610 795.32NGVD291VUSGSSA
2024-03-2718:09 UTCm62611 795.16NAVD881VUSGSSA
2024-03-2718:09 UTCm7201984.79  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.