Click
to
hide
Water-Year
Summary
instructions
and
information
- 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
05591200 KASKASKIA RIVER AT COOKS MILLS, IL
LOCATION - Lat 39°35'00.5", long 88°24'49.7" referenced to North American Datum of 1983, in NW 1/4 SW 1/4 sec.10, T.13 N., R.7 E., Coles County, IL, Hydrologic Unit 07140201, on right upstream side of bridge in Cooks Mills, 3.8 mi downstream from Flat Branch, and at mile 238.1.
DRAINAGE AREA - 473 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD -
SURFACE-WATER DISCHARGE AND STAGE
DISCHARGE: August 1970 to current.
STAGE: Water years 1994 to current.
SURFACE-WATER QUALITY
CHEMICAL: Water years 1977-91. Additional chemical data for water
years 1961-68, 1971-72 are published in Water-Resources Investigations
78-24 and 79-25 as site O 02.
SEDIMENT: January 1979 to September 1997.
MISCELLANEOUS: Sediment concentration and particle size, water years 1993-97.
SURFACE-WATER DISCHARGE AND STAGE
DISCHARGE: August 1970 to current.
STAGE: Water years 1994 to current.
SURFACE-WATER QUALITY
CHEMICAL: Water years 1977-91. Additional chemical data for water
years 1961-68, 1971-72 are published in Water-Resources Investigations
78-24 and 79-25 as site O 02.
SEDIMENT: January 1979 to September 1997.
MISCELLANEOUS: Sediment concentration and particle size, water years 1993-97.
GAGE - Water-stage recorder, U.S. Army Corps of Engineers satellite
telemeter, and crest-stage gage. Datum of gage is 616.89 ft above
NAVD of 1988. Prior to July 30, 1981, at site 200 ft downstream at
same datum.
REMARKS - Occasional cropland irrigation water withdrawals approximately 3.4 miles upstream from gage.
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, 14,100 ft³/s, June 7, 2008, gage height, 20.41 ft; no flow, Sept. 11, 1988.
SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily, 1,710 mg/L, May 1, 1983; minimum daily, 0 mg/L, Sept. 10, 11, 1988.
SUSPENDED-SEDIMENT LOADS: Maximum daily, 26,100 tons, Apr. 13, 1979; minimum daily, 0 tons, Sept. 10, 11, 1988.
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 14,100 ft³/s, June 7, 2008, gage height, 20.41 ft; no flow, Sept. 11, 1988.
SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily, 1,710 mg/L, May 1, 1983; minimum daily, 0 mg/L, Sept. 10, 11, 1988.
SUSPENDED-SEDIMENT LOADS: Maximum daily, 26,100 tons, Apr. 13, 1979; minimum daily, 0 tons, Sept. 10, 11, 1988.
