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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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USGS Water-Year Summary 2024
05438500 KISHWAUKEE RIVER AT BELVIDERE, IL
LOCATION - Lat 42°15'22", long 88°51'47" referenced to North American Datum of 1927, in SE 1/4 SE 1/4 sec.27, T.44 N., R.3 E., Boone County, IL, Hydrologic Unit 07090006, on left bank at Belvidere sewage-treatment plant, 1.3 mi downstream from bridge on State Street in Belvidere, 3.0 mi downstream from Piscasaw Creek, and at mile 21.9.
DRAINAGE AREA - 538 mi².
REVISIONS HISTORY -
WSP 1175: 1946. WSP 1508: 1940, 1942-43, 1947(M). WSP 1728: 1940(M). WDR IL-75-1: Drainage area. WDR IL-00: 1999.
Revisions: Gage datum was updated to 738.50 ft NAVD88 on June 14, 2022, as determined by a GNSS Level II survey using GEOID18.
SURFACE-WATER RECORDS
PERIOD OF RECORD -
SURFACE-WATER DISCHARGE AND STAGE
DISCHARGE: October 1939 to current.
STAGE: Water years 1991 to current.
SURFACE-WATER QUALITY
SEDIMENT: May 2006 to September 2007.
SURFACE-WATER DISCHARGE AND STAGE
DISCHARGE: October 1939 to current.
STAGE: Water years 1991 to current.
SURFACE-WATER QUALITY
SEDIMENT: May 2006 to September 2007.
GAGE -
Water-stage recorder, satellite telemeter and crest-stage gage. Datum of gage is 738.50 ft. NAVD 88. Sept. 29, 1939 to Sept. 30, 1942, nonrecording gage at site 1.3 mi upstream at datum 3.99 ft higher, and Oct. 1, 1942 to Sept. 30, 1973, nonrecording gage at present site and datum.
REMARKS - Accuracy of records is discussed in the annual Station Analysis archived at the USGS IL Water Science Center.
EXTREMES OUTSIDE PERIOD OF RECORD - SURFACE-WATER DISCHARGE AND STAGE: Flood of Jan. 24, 1938, reached a stage of 16.9 ft, backwater from ice, from information by sewage-treatment plant employees.
EXTREMES FOR PERIOD OF RECORD - SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 11,900 ft³/s, February 20, 1994, gage height, 14.19 ft; minimum discharge, 14 ft³/s, September 19, 1988.
SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily, 424 mg/L, August 20, 2007; minimum daily, 6 mg/L, August 19-21-2006.
SUSPENDED-SEDIMENT LOADS: Maximum daily, 3.750 tons, August 7, 2007; minimum daily, 1.2 tons, August 19, 21-23, 2006.
SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily, 424 mg/L, August 20, 2007; minimum daily, 6 mg/L, August 19-21-2006.
SUSPENDED-SEDIMENT LOADS: Maximum daily, 3.750 tons, August 7, 2007; minimum daily, 1.2 tons, August 19, 21-23, 2006.
