USGS Water-Year Summary for Site 05536890

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.

	Available Parameters
	00060 Discharge(Mean) [LMDA Primary WY2008-Current]
	00060 Discharge(Mean) [Primary for LMDA Before WY2008]
	00065 Gage height(Mean) [(2)]

Select a water year

Water year 2023: 2022-10-01 to 2023-09-30

Print this page

USGS Water-Year Summary 2023

05536890 CHICAGO SANITARY AND SHIP CANAL NR LEMONT, IL

LOCATION - Lat 41°41'28.2", long 87°57'49.6" referenced to North American Datum of 1983, in SE 1/4 NE 1/4 SW 1/4 sec.15, T.37 N., R.11 E., Du Page County, IL, Hydrologic Unit 07120004, on right bank, 1.5 miles upstream from the Lemont Road (Stephen St.) bridge, and at mile 12.0.

DRAINAGE AREA - 738 mi².

REVISIONS HISTORY - WDR-US-2008: 2005-06, WDR-US-2009: 2005-08, and WDR-US-2013: 2010-12.

SURFACE-WATER RECORDS

PERIOD OF RECORD -
SURFACE-WATER DISCHARGE AND STAGE
  DISCHARGE: December 2004 to current.
  STAGE: December 2004 to current.
SURFACE WATER QUALITY
  WATER TEMPERATURE: May 2011 to Nov. 2011 (discontinued).
  SPECIFIC CONDUCTANCE: May 2011 to Nov. 2011 (discontinued).
  DISSOLVED OXYGEN: May 2011 to Nov. 2011 (discontinued).
  TURBIDITY: May 2011 to Nov. 2011 (discontinued).

GAGE - Water-stage recorder, radio telemeter, and acoustic-velocity meter. Datum of gage is 551.76 ft above NAVD of 1988.

REMARKS - Estimated daily discharges determined from a regression relation between present site and the previous site 5.2 mi downstream. This gaging station provides flow data essential to determine Illinois' diversion of Lake Michigan water. A U.S. Supreme Court Decree of June 12, 1967 limits Illinois' diversion to an average of 3,200 ft³/s. Illinois' diversion includes stormwater runoff from a 673 mi² diverted watershed area and water diverted from the lake for domestic water supply, navigation and water-quality improvement in the Chicago Sanitary and Ship Canal system. Flows recorded at this station also include nondiversion flows. 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, 21,421 ft³/s, Apr. 18, 2013, gage-height, 28.70 ft; maximum gage-height, 28.84 ft, Sept. 14, 2008, discharge, 19,567 ft³/s; no flow or periods of reverse flow at times in most years.
WATER TEMPERATURE: Maximum recorded water temperature, 30.2 oC, July 23, 2011; minimum recorded, 11.3 oC, November 18-19, 2011.
SPECIFIC CONDUCTANCE: Maximum recorded specific conductance, 1,060 uS/cm@25oC, June 4-5 and November 2011; minimum recorded, 431 uS/cm@25oC, July 23, 2011.
DISSOLVED OXYGEN: Maximum recorded dissolved oxygen, 27.6 mg/L, June 30, 2011; minimum recorded, 3.4 mg/L, July 23, 2011.
TURBIDITY: Maximum recorded turbidity, 490 FNU, July 23, 2011; minimum recorded, -0.3 FNU, September 8, 2011.