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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.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
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USGS Water-Year Summary 2024
420457088105801 42N9E-28.2a (South Barrington)
Silurian-Devonian aquifers
Silurian System
Silurian System
LOCATION - Lat 42°04'56.8", long 88°10'58.0" referenced to North American Datum of 1983, in SW 1/4 SE 1/4 SE 1/4 sec.28, T.42 N., R.9 E., Cook County, IL, Hydrologic Unit 07120006, In Community Park in South Barrington, IL.
REVISIONS HISTORY - Revisions: Land-surface datum was updated to 843.58 ft NAVD88 on May 30, 2023, as determined by a GNSS Level II survey. Land-surface datum was previously published as 842 ft NGVD29 from a topographic map. Discrete water-level measurements prior to May 30, 2023, are referenced to the original datum.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 260 ft. Upper casing diameter 5 in; top of first opening 216 ft, bottom of last opening 260 ft.
DATUM - Land-surface datum is 843.58 ft above North American Vertical Datum of 1988. Measuring point: Top of PVC Casing, 1.33 ft above land-surface datum, May. 20, 2016 to present.
PERIOD OF RECORD -
GROUND-WATER LEVELS: July 2016 to current.
GROUND-WATER LEVELS: July 2016 to current.
GAGE - Water level recorder and satellite telemeter.
EXTREMES FOR PERIOD OF RECORD - Highest water level, 63.91 ft. below land-surface datum, May 22, 23, 2020; lowest, 77.62 ft. below land-surface datum, Sept. 8, 2023.
