USGS Water-Year Summary for Site 05578250

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	Available Parameters
	00010 Temperature, water(Max.,Mean,Min.)
	00060 Discharge(Mean) [STGQ]
	00065 Gage height(Mean)
	00095 Specific cond at 25C(Max.,Min.,Mean)

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

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USGS Water-Year Summary 2024

05578250 NORTH FORK SALT CREEK NEAR DE WITT, IL

LOCATION - Lat 40°14'09.1", long 88°48'34.4" referenced to North American Datum of 1983, in NE 1/4 SW 1/4 NE 1/4 sec.36, T.21 N., R.3 E., DeWitt County, IL, Hydrologic Unit 07130009,

DRAINAGE AREA - 106.9 mi².

REVISIONS HISTORY -

REVISIONS:

Water Temperature for the period Dec. 28, 2017, to Jan. 24, 2018, was revised on Apr. 14, 2020, to remove erroneous water temperature data.

Specific Conductance for the period Oct. 29, 2018, to July 16, 2019, was revised on Apr. 23, 2020, due to sensor malfunction.

SURFACE-WATER RECORDS

PERIOD OF RECORD -

SURFACE-WATER DISCHARGE AND STAGE
October 2015 to present.

WATER QUALITY
WATER TEMPERATURE: October 2015 to present.
SPECIFIC CONDUCTANCE: October 2015 to present.

GAGE - Water-stage recorder, satellite telemeter, and water-temperature/specific-conductance monitor. Datum of gage is 0.14 ft. below NAVD of 1988. Gage height minus 0.14 ft equals NAVD88 elevation.

REMARKS - 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: 7,400 ft³/s, Jun. 26, 2021, gage height, 703.57 ft.; minimum, 0.46 ft³/s, Aug. 17, 2019; minimum gage height, 689.98 ft., Aug. 24, 2018.

WATER-TEMPERATURE: Maximum, 28.9 °C, July 20, 2019; minimum, -0.6 °C, Feb. 13, 2018.

SPECIFIC CONDUCTANCE: Maximum, 1,200 µS/cm, Dec. 29, 2017; minimum, 139 µS/cm, Dec. 29, 2015.