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Water-Year Summary for Site 05559600

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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.
Available Parameters
80154 Suspnd sedmnt conc(Mean)  
80155 Suspnd sedmnt disch(Mean)  

Water year 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
05559600 ILLINOIS RIVER AT CHILLICOTHE, IL
LOCATION - Lat 40°55'45", long 89°27'42" referenced to North American Datum of 1927, in NW 1/4 NE 1/4 NW 1/4 sec.22, T.11 N., R.9 W., Peoria County, IL, Hydrologic Unit 07130001, at center of Atchison, Topeka and Sante Fe Railroad bridge, 1 mi north of Chillicothe and at mile 181.9.
DRAINAGE AREA - 13,717 mi².
WATER-QUALITY RECORDS
PERIOD OF RECORD -
SURFACE-WATER QUALITY
  SEDIMENT: May 1993 to November 1993,
    water years 1994 to 2000 (March to December), March 2001 to current.
  MISCELLANEOUS: Sediment concentration and particle size, water years 1996-99, 2002-05.
REMARKS - Water discharge used to compute sediment record are from Illinois River at Henry (station 05558300). Suspended-sediment samples were collected by a local observer twice weekly with additional samples colleced during high runoff periods. Samples were not collected (and data are not published) during periods of ice.
EXTREMES FOR PERIOD OF RECORD -
SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily, 1,080 mg/L, April 18, 2013; minimum daily, 9 mg/L, December 24, 2013 and December 13, 2014.
SUSPENDED-SEDIMENT LOADS: Maximum daily, 293,000 tons, April 19, 2013; minimum daily, 140 tons, Oct. 30, 2002.