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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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USGS Water-Year Summary 2024
05551580 FOX RIVER AT YORKVILLE, IL
LOCATION - Lat 41°38'34.22", long 88°26'36.17" referenced to North American Datum of 1983, in NE 1/4 SW 1/4 NW 1/4 sec.33, T.37 N., R.7 E., Kendall County, IL, Hydrologic Unit 07120007, on island located between the Glen D. Palmer dam and bypass channel 0.2 mi upstream from Route 47 bridge, 0.5 mi upstream from confluence with Blackberry Creek, and at river mile 36.1.
DRAINAGE AREA - 1,804 mi².
REVISIONS HISTORY - Revisions: Gage datum was revised to 562.28 ft NAVD88 on January 3, 2023, as determined by a GNSS Level II survey using GEOID18. Gage datum was previously published in error as 559.76 ft NAVD88 (furnished).
SURFACE-WATER RECORDS
PERIOD OF RECORD -
SURFACE-WATER DISCHARGE AND STAGE
DISCHARGE: July 2012 to current.
STAGE: July 2012 to current.
MISCELLANEOUS MEASUREMENTS: Water year 1976.
SURFACE-WATER QUALITY
WATER TEMPERATURE: August 2012 to November 2016.
SPECIFIC CONDUCTANCE: August 2012 to November 2016.
NITRATE: November 2012 to December 2014.
SURFACE-WATER DISCHARGE AND STAGE
DISCHARGE: July 2012 to current.
STAGE: July 2012 to current.
MISCELLANEOUS MEASUREMENTS: Water year 1976.
SURFACE-WATER QUALITY
WATER TEMPERATURE: August 2012 to November 2016.
SPECIFIC CONDUCTANCE: August 2012 to November 2016.
NITRATE: November 2012 to December 2014.
GAGE - Water stage recorder, satellite telemeter, crest-stage gage, and concrete dam. Datum of gage is 562.28 ft. above NAVD of 1988.
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, 20,600 ft³/s, April 18, 2013, gage height, 16.80 ft; minimum discharge, 38 ft³/s, October 12, 2012.
NITRATE: Maximum, 4.91 mg/L, January 03, 2013; minimum, 0.48 mg/L, July 24, 2014
WATER TEMPERATURE: Maximum, 33.6 oC, July 18, 2013; Minimum, -0.3 oC, many days during 2013-14.
SPECIFIC CONDUCTANCE: Maximum, 1940 uS/cm, Jan. 12, 2014; Minimum, 470 uS/cm, April 18, 2013.
NITRATE: Maximum, 4.91 mg/L, January 03, 2013; minimum, 0.48 mg/L, July 24, 2014
WATER TEMPERATURE: Maximum, 33.6 oC, July 18, 2013; Minimum, -0.3 oC, many days during 2013-14.
SPECIFIC CONDUCTANCE: Maximum, 1940 uS/cm, Jan. 12, 2014; Minimum, 470 uS/cm, April 18, 2013.
