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Water-Year Summary for Site 05595200

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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
00060 Discharge(Mean)  
00065 Gage height(Mean)  

Water year 2019: 2018-10-01 to 2019-09-30

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USGS Water-Year Summary 2019
LOCATION - Lat 38°19'26", long 89°58'14" referenced to North American Datum of 1983, in SW 1/4 SE 1/4 sec.27, T.2 S., R.8 W., St. Clair County, IL, Hydrologic Unit 07140204, on left bank at downstream side of bridge on State Highway 156, 2 mi northeast of Hecker, 5 mi west of New Athens, and at mile 17.3.
DRAINAGE AREA - 129 mi².
REVISIONS HISTORY - WDR IL-75-1: Drainage area.
  DISCHARGE: October 1969 to current.
  STAGE: Water years 1995 to current. October 1980 to September 1994 (8 a.m. gage heights).
  CHEMICAL: Water years 1978-91.
   MISCELLANEOUS: Water chemistry and chlorohyll-a in algae, June-September 2007.
GAGE - Water-stage recorder, U.S. Army Corps of Engineers satellite telemeter, and crest-stage gage. Datum of gage is 375.00 ft above NGVD of 1929 (374.50 ft NAVD 1988). June 28, 1976, to Nov. 9, 1978, nonrecording gage at same site and datum.
REMARKS - Three sewage treatment plants discharge effluent 13-16 mi upstream. 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, 23,400 ft³/s, April 29, 1996, gage height, 44.40 ft, from floodmark; minimum daily discharge, 4.2 ft³/s, Oct. 17, 1976.