USGS Water-Year Summary for Site 05567500

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	Available Parameters
	00010 Temperature, water(Max.,Min.,Mean)
	00020 Temperature, air(Mean)
	00060 Discharge(Mean)
	00065 Gage height(Mean)
	00095 Specific cond at 25C(Max.,Mean,Min.)
	00300 Dissolved oxygen(Max.,Mean,Min.)
	00400 pH(Max.,Med.,Min.)
	63680 Turbidity, Form Neph(Max.,Mean,Min.)
	99133 NO3+NO2,water,insitu(Max.,Mean,Min.)

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Water year 2024: 2024-10-01 to 2025-09-30

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USGS Water-Year Summary 2024

05567500 MACKINAW RIVER NEAR CONGERVILLE, IL

LOCATION - Lat 40°37'24.6", long 89°14'30.0" referenced to North American Datum of 1983, in NE 1/4 SW 1/4 sec.17, T.25 N., R.1 W., Woodford County, IL, Hydrologic Unit 07130004, on right bank at downstream side of bridge on U.S. Highway 150, 0.2 mi downstream from Walnut Creek, 2 mi northwest of Congerville, and at mile 58.7.

DRAINAGE AREA - 767 mi².

REVISIONS HISTORY -

WSP 1175: 1948. WSP 1308: 1945(M). WDR IL-75-1: Drainage area.

Discharges for Jan. 11-14, 18-19, and 21-22, 2018, were revised on Aug. 3, 2020, due to missing record.

SURFACE-WATER RECORDS

PERIOD OF RECORD -
SURFACE-WATER DISCHARGE AND STAGE
  DISCHARGE: October 1944 to current.
  STAGE: Water years 1994 to current.
SURFACE-WATER QUALITY
  SEDIMENT: June 1983 to September 1983.
BIOLOGICAL
  ALGAE: Water year 1997.
  BENTHIC MACROINVERTEBRATES: Water year 1997.

GAGE - Water-stage recorder, U.S. Army Corps of Engineers satellite telemeter, and crest-stage gage. Datum of gage is 606.77 ft above North American Vertical Datum of 1988. Prior to July 11, 1945, nonrecording gage at same site and datum.

REMARKS - The City of Bloomington occasionally pumps water upstream from station into Lake Evergreen for municipal supply. The City of Bloomington also withdraws water from Lake Bloomington, which is on Money Creek, a tributary to the Mackinaw River. Water withdrawals are diverted via effluent to Sugar Creek basin. 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, 44,800 ft³/s, Dec. 4, 1982, gage height, 20.21 ft, from floodmark; minimum, 0.2 ft³/s, Oct. 21-24, Oct. 27 to Nov. 3, 1956, and Oct. 8-10, 1963.