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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
05540160 EAST BRANCH DU PAGE RIVER NEAR DOWNERS GROVE, IL
LOCATION - Lat 41°49'54", long 88°02'52" referenced to North American Datum of 1983, in SE 1/4 SW 1/4 sec.25, T.39 N., R.10 E., Du Page County, IL, Hydrologic Unit 07120004, on right upstream side of bridge on State Highway 56, 2.2 mi northwest of Downers Grove, and at mile 15.0.
DRAINAGE AREA - 26.6 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD -
SURFACE-WATER DISCHARGE AND STAGE
DISCHARGE: October 1989 to current.
STAGE: Water years 1994 to current.
PARTIAL RECORD: Annual maximum, water years 1955; 1961; 1963-76.
SURFACE-WATER DISCHARGE AND STAGE
DISCHARGE: October 1989 to current.
STAGE: Water years 1994 to current.
PARTIAL RECORD: Annual maximum, water years 1955; 1961; 1963-76.
GAGE - Water-stage recorder, satellite telemeter, and crest-stage gage. Datum of gage is 659.85 ft. above NAVD of 1988. Prior to July 19, 1989, at datum 12.21 ft higher.
REMARKS - Diurnal fluctuation at low flow caused by sewage-treatment plants 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, 1,720 ft³/s, Aug. 26, 1972, gage height, 16.94 ft, present datum; maximum gage height, 17.79 ft, April 18, 2013, discharge 1,320 ft³/s; minimum, 3.6 ft³/s, Dec. 19, 1989.
