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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
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USGS Water-Year Summary 2024
401921089282103 22N3W-29.8a3 (MTH-17WT)
Sand and gravel aquifers (glaciated regions)
Quaternary System
Quaternary System
LOCATION - Lat 40°19'21.4", long 89°28'21.4" referenced to North American Datum of 1983, in SW 1/4 SW 1/4 SW 1/4 sec.29, T.22 N., R.3 W., Tazewell County, IL, Hydrologic Unit 07130009, northernmost yellow-cased well in cluster of three wells, 1 mi north of US 136 on Brownwood Road, about 1.5 mi northeast of Emden, and 0.5 mi south of Prairie Creek. Local names: MTH-17WT, 22N3W-29.8a3, Owner: U.S. Geological Survey.
REVISIONS HISTORY - Revisions: Land-surface datum was updated to 585.47 ft NAVD88 on Feb. 17, 2023, as determined by a GNSS Level II survey. Land-surface datum was previously published as 586 ft NGVD29 from topographic map. Discrete water-level measurements prior to Feb. 17, 2023, are referenced to the original datum.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 20.2 ft. Upper casing diameter 2 in; top of first opening 9.7 ft, bottom of last opening 19.7 ft. Well-casing includes schedule 40 PVC pipe, 7.75 in. diameter borehole with
bentonite seal, observation well.
DATUM - Land-surface datum is 585.47 ft above North American Vertical Datum of 1988. Measuring point: Top of PVC casing, south side, 3.2 ft above land-surface datum, Jul. 27, 2010 to Feb. 17, 2023; Top of PVC casing, south side, 3.42 ft above land-surface datum, Feb. 17, 2023 to present.
PERIOD OF RECORD -
GROUND-WATER LEVELS: July 2011 to current. Periodic levels during 2010 water year.
GROUND-WATER LEVELS: July 2011 to current. Periodic levels during 2010 water year.
GAGE - Water-level recorder and satellite telemeter.
EXTREMES FOR PERIOD OF RECORD - Highest water level, 0.68 ft below land-surface datum, June 26, 2015; lowest, 14.67 ft below land-surface datum, Dec. 20-21, 2012, and Jan. 8-10, 2013.
