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Water-Year Summary for Site 05518000
Water-stage recorder. Datum of gage is 627.94 feet above the North American Vertical Datum of 1988 or 628.13 ft above National Geodetic Vertical Datum of 1929.
Prior to Dec. 19, 1934, non-recording gage
Dec. 19, 1934, to Oct. 4, 1965, water-stage recorder on left bank 50 ft downstream
Oct. 5, 1965, to Sept. 21, 1966, non-recording gage on right bank 200 ft downstream
Sept. 21, 1966 to July 21, 1998, water-stage recorder on right bank 25 ft upstream from Monon railroad bridge and approximately 400 ft downstream, all at same datum.
TEMPERATURE: December 2015 to current.
SPECIFIC CONDUCTANCE: December 2015 to current.
pH: December 2015 to current.
DISSOLVED OXYGEN: December 2015 to current.
TURBIDITY YSI 6 SERIES: December 2015 to August 2020.
TURBIDITY YSI EXO: February 2019 to current.
NITRATE: December 2015 to current.
ORTHOPHOSPHATE: April 2016 to current.
WATER TEMPERATURE: Maximum: 29.0 degrees Celsius, August 11, 2016*. Minimum: -0.2 degrees Celsius, February 06, 2018*.
SPECIFIC CONDUCTANCE: Maximum: 739 microsiemens, February 09, 2021*. Minimum: 340 microsiemens, January 11, 2020*.
pH: Maximum: 8.3 units, April 29, 2018*. Minimum: 7.0 units, January 28, 2018*.DISSOLVED OXYGEN: Maximum: 13.7 mg/L, February 08, 2019. Minimum: 5.2 mg/L, August 16, 2016*.
TURBIDITY YSI 6 SERIES: Maximum: 781 FNUs, May 15, 2020. Minimum: 0.0 FNUs, September 15, 2017*.TURBIDITY YSI EXO: Maximum: 550 FNUs, May 15, 2020. Minimum: 1.8 FNUs, August 26, 2020.
NITRATE: Maximum: 7.67 mg/L, May 13, 2021. Minimum: 0.73 mg/L, September 14, 2021*.
ORTHOPHOSPHATE: Maximum: 0.103 mg/L, July 04, 2016. Minimum: 0.0023 mg/L, June 07, 2016.
*Multiple occurrences of the same extreme in selected dataset.