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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.
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USGS Water-Year Summary 2024
05595200 RICHLAND CREEK NEAR HECKER, IL
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.
SURFACE-WATER RECORDS
PERIOD OF RECORD -
SURFACE-WATER DISCHARGE AND STAGE
DISCHARGE: October 1969 to current.
STAGE: Water years 1995 to current. October 1980 to September 1994 (8 a.m. gage heights).
SURFACE-WATER QUALITY
CHEMICAL: Water years 1978-91.
MISCELLANEOUS: Water chemistry and chlorohyll-a in algae, June-September 2007.
SURFACE-WATER DISCHARGE AND STAGE
DISCHARGE: October 1969 to current.
STAGE: Water years 1995 to current. October 1980 to September 1994 (8 a.m. gage heights).
SURFACE-WATER QUALITY
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 374.65 ft above NAVD of 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.
