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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.
USGS Water-Year Summary 2024
05539900 WEST BRANCH DU PAGE RIVER NEAR WEST CHICAGO, IL
LOCATION - Lat 41°54'39.5", long 88°10'44.91" referenced to North American Datum of 1983, in SE 1/4 NW 1/4 sec.35, T.40 N., R.9 E., Du Page County, IL, Hydrologic Unit 07120004, on left bank at downstream side of bridge on State Highway 64, 2 mi northeast of West Chicago, and at mile 49.2.
DRAINAGE AREA - 28.5 mi².
REVISIONS HISTORY - WDR IL-75-1: Drainage area. WDR IL-77-1: 1966-67(M).
SURFACE-WATER RECORDS
PERIOD OF RECORD -
SURFACE-WATER DISCHARGE AND STAGE
DISCHARGE: July 1961 to current.
STAGE: Water years 1994 to current.
SURFACE-WATER QUALITY
CHEMICAL: Water years 1979-91.
BIOLOGICAL
ALGAE: Water year 1990.
SURFACE-WATER DISCHARGE AND STAGE
DISCHARGE: July 1961 to current.
STAGE: Water years 1994 to current.
SURFACE-WATER QUALITY
CHEMICAL: Water years 1979-91.
BIOLOGICAL
ALGAE: Water year 1990.
GAGE -
Water-stage recorder, satellite telemeter and crest-stage gage. Datum of gage is 717.43 ft. above NAVD 1988.
REMARKS - Diurnal fluctuation at low flow caused by sewage-treatment plant upstream from station.
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, 1,840 ft³/s, Sept. 13, 2008, gage height, 12.28 ft; minimum, 0.20 ft³/s, several days in 1963.
