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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.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2024
05586745 MACOUPIN CREEK AT HWY 111 NR SUMMERVILLE, IL
LOCATION - Lat 39°12'16", long 90°06'02" referenced to North American Datum of 1983, in SW 1/4 SW 1/4 SE 1/4 sec.21, T.9 N., R.9 W., Macoupin County, IL, Hydrologic Unit 07130012, on downstream side of bridge at mid-channel on Illinois route 111.
DRAINAGE AREA - 380.8 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD -
SURFACE-WATER DISCHARGE AND STAGE
DISCHARGE: October 2017 to current.
STAGE: October 2017 to current.
GAGE - Water-stage recorder, satellite telemeter. Datum of gage is 480.0 ft above NAVD of 1988.
REMARKS - Accuracy of records is discussed in the annual Station Analysis archived at the USGS IL Water Science Center.
EXTREMES FOR PERIOD OF RECORD - SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 8,650 ft³/s, Jan. 12, 2020, gage height, 27.49 ft; minimum, 0.49 ft³/s, Oct. 25, 2018.
