USGS Water-Year Summary for Site 06888990

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	Available Parameters
	00010 Temperature, water(Max.,Min.,Mean)
	00060 Discharge(Mean)
	00095 Specific cond at 25C(Max.,Min.,Mean)
	00300 Dissolved oxygen(Mean,Max.,Min.)
	00400 pH(Med.,Min.,Max.)
	32320 fChl,in situ,470/685(Max.,Min.,Mean)
	32321 Relative fPC, water, in situ(Min.,Mean,Max.)
	63680 Turbidity, Form Neph(Mean,Max.,Min.)

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Water year 2024: 2023-10-01 to 2024-09-30

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USGS Water-Year Summary 2024

06888990 KANSAS RIVER AT TOPEKA WATER PLANT, KS

LOCATION - Lat 39°04'19", long 95°42'58" referenced to North American Datum of 1927, in NW 1/4 sec.23, T.11 S., R.15 E., Shawnee County, KS, Hydrologic Unit 10270102, on the right bank at the weir structure at the water plant in Topeka and 3.0 mi upstream from the gage Kansas River at Topeka (06889000).

DRAINAGE AREA - 56,686 mi². 56,686 square miles, approximately, from automated delineation using 30-meter National Elevation Dataset digital elevation model data.

SURFACE-WATER RECORDS

PERIOD OF RECORD - November 2015 to current year.

GAGE - Water-stage recorder. Datum of gage 857.163' NAVD88.

REMARKS - Satellite telemeter at station.

EXTREMES FOR PERIOD OF RECORD - Extreme for period of record is 23.19 ft, correlating to a rated discharge of 80067.64 cfs on June 24, 2019.

WATER-QUALITY RECORDS

INSTRUMENTATION - WATER-QUALITY MONITOR: A Xylem EXO2 QW monitor was installed in November 2018 to measure water temperature, specific conductance, pH, dissolved oxygen, turbidity, chlorophyll fluorescence, and phycocyanin fluorescence. The monitor is in a 5-inch PVC pipe suspended by synthetic winch rope on the NW corner of the eastern-most intake structure (on the southern bank of the river). The system can be raised and lowered using a hand-operated winch.

EXTREMES FOR PERIOD OF DAILY RECORD -

SPECIFIC CONDUCTANCE (EXO): Maximum, 1,730 microsiemens/cm, Oct. 17, 2020; minimum, 178 microsiemens/cm, May 17, 2021.

pH (EXO): Maximum, 9.1 standard units, July 9, 2023; minimum, 7.6 standard units, May 31, 2022.

WATER TEMPERATURE (EXO): Maximum, 35.7 °C, Aug. 21, 2023; minimum, -0.1 °C, Feb. 15, 2020.

DISSOLVED OXYGEN (EXO): Maximum, 17.2 mg/L, June 14, 2023; minimum, 2.0 mg/L, July 27, 2023.

TURBIDITY (EXO): Maximum, 1,850 FNU, May 9, 2021; minimum, 3.1 FNU, Nov. 7, 2023.

CHLOROPHYLL (EXO): Maximum, 32.4 RFU, May 24, 2022; Minimum, 0.6 RFU, Aug. 14, 2020

PHYCOCYANIN (EXO): Maximum, 4.52 RFU, May 24, 2022; Minimum, 0.14 RFU, Aug. 12, 2021