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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
05587900 CAHOKIA CREEK AT EDWARDSVILLE, IL
LOCATION - Lat 38°49'28", long 89°58'29" referenced to North American Datum of 1983, in NW 1/4 SE 1/4 sec.3, T.4 N., R.8 W., Madison County, IL, Hydrologic Unit 07140101, on right bank at upstream side of bridge on State Highway 143 in Edwardsville, and at mile 9.4.
DRAINAGE AREA - 212 mi².
REVISIONS HISTORY - WDR IL-75-1: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD -
SURFACE-WATER DISCHARGE AND STAGE
DISCHARGE: August 1969 to current.
STAGE: Water years 1994 to current.
SURFACE-WATER QUALITY
CHEMICAL: Water years 1978-91.
SURFACE-WATER DISCHARGE AND STAGE
DISCHARGE: August 1969 to current.
STAGE: Water years 1994 to current.
SURFACE-WATER QUALITY
CHEMICAL: Water years 1978-91.
GAGE - Water-stage recorder, satellite telemeter, and crest-stage gage. Datum of gage is 425.09 ft above North American Vertical Datum of 1988. Apr. 8, 1983, to July 2, 1985, nonrecording gage at same site and datum.
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, 16,100 ft³/s, Dec. 27, 2015, gage height, 27.17 ft; no flow at times in several years.
