LOCATION.-- Lat 37°54'05", long 89°00'50" (NAD of 1927), in NW1/4 sec.20, T.7 S., R.2 E., Franklin County, Hydrologic Unit 07140106, on left bank 0.8 mi upstream from bridge on State Highway 149 at Plumfield, 1.9 mi downstream from Middle Fork Muddy River, and at mile 86.6.

DRAINAGE AREA.-- 794 mi².

PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE

DISCHARGE: June 1908 to September 1910 and December 1910 to December 1912 (published as "near Cambon"), August 1914 to current year.

STAGE: Water years 1994 to current year.

SURFACE-WATER QUALITY

CHEMICAL: Water years 1978-91.

REVISED RECORDS.-- WSP 700: 1929. WSP 805: 1935. WSP 1508: 1908-10, 1920-21(M), 1928(M), 1932(M). WDR IL-75-1: Drainage area.

GAGE.-- Water-stage recorder, U.S. Army Corps of Engineers satellite telemeter, and concrete control. Datum of gage is 353.24 ft above NGVD of 1929. June 16, 1908, to Dec. 31, 1912, nonrecording gage at site 1.7 mi upstream at different datum. Aug. 14, 1914, to July 12, 1932, nonrecording gage at site 0.2 mi downstream at different datum. July 13, 1932, to Nov. 12, 1938, nonrecording gage at bridge 0.8 mi downstream at datum 0.86 ft higher. Nov. 13, 1938, to Sept. 30, 1974, water-stage recorder at present site at datum 5.0 ft higher. Oct. 1, 1974, to Sept. 30, 1991, auxiliary water-stage recorder at pumping plant at Zeigler, 4 mi downstream, at datum 353.24 ft above NGVD of 1929. Feb. 14, 1937, to Sept. 30, 1974, auxiliary nonrecording gage at same site at datum 5.0 ft higher.

REMARKS.-- Flow regulated since October 1970 by Rend Lake (station 05595950), 18.6 mi upstream from gage.

EXTREMES FOR PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 42,900 ft³/s, May 10, 1961; maximum gage height, 29.67 ft, datum then in use, May 10, 1961; no flow at times in 1908-9, 1914, 1936, 1940-41. Maximum discharge since construction of Rend Lake, 14,200 ft³/s, May 1, 1996, gage height, 31.83 ft; maximum stage since construction of Rend Lake, 31.84 ft, May 4, 1983, discharge, 11,800 ft³/s; minimum discharge since construction of Rend Lake, 6.8 ft³/s, Oct. 13, 1970.