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Water-Year Summary for Site 07143672

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Available Parameters
00010 Temperature, water(Max.,Min.,Mean)  
00010 Temperature, water(Max.,Min.,Mean) [EXO2]  
00060 Discharge(Mean)  
00065 Gage height(Mean)  
00095 Specific cond at 25C(Max.,Min.,Mean)  
00095 Specific cond at 25C(Max.,Min.,Mean) [EXO2]  
00300 Dissolved oxygen(Max.,Min.,Mean)  
00300 Dissolved oxygen(Max.,Min.,Mean) [EXO2]  
00400 pH(Max.,Min.,Med.)  
00400 pH(Max.,Min.,Med.) [EXO2]  
32295 fDOM, water, in situ(Min.,Max.) [EXO2]  
32322 Relative fDOM, water, in situ(Max.,Min.) [EXO2]  
63680 Turbidity, Form Neph(Mean,Min.,Max.)  
63680 Turbidity, Form Neph(Min.,Mean,Max.) [EXO2]  

Water year 2024: 2024-10-01 to 2025-09-30
 
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USGS Water-Year Summary 2024
07143672 LITTLE ARKANSAS RIVER AT HIGHWAY 50 NEAR HALSTEAD, KS
LOCATION - Lat 38°01'42.71", long 97°32'25.95" referenced to North American Datum of 1983, in sec.28, T.23 S., R.2 W., Harvey County, KS, Hydrologic Unit 11030012, on left bank at downstream side of State Highway 50, 3.4 mi upstream of Black Kettle Creek, 2 mi north and 1.3 mi west of Halstead, and at mile 41.4.
DRAINAGE AREA - 759 mi² of which 74 mi² probably is noncontributing.
REVISIONS HISTORY - March-June 2021; Sept.-Oct. 2022
SURFACE-WATER RECORDS
PERIOD OF RECORD - May 1995 to current year.
GAGE - Water-stage recorder. Current datum of gage is 1,371.04 ft. above mean sea level (NAVD88). Old datum of gage was 1,370.55 ft. above NGVD of 1929.
REMARKS - Natural flow of stream affected by groundwater withdrawals for irrigation and return flow from irrigated areas. Satellite telemeter at station.
EXTREMES FOR PERIOD OF RECORD - Flood of May 9, 2019 reached a stage of 27.12 ft. with a measured discharge of 13,800 cfs.
WATER-QUALITY RECORDS
PERIOD OF RECORD - May 1998 to current year.
PERIOD OF DAILY RECORD -

SPECIFIC CONDUCTANCE (YSI): May 1998 to July 2012 and Feb. 2013 to Jan. 2017 (YSI discontinued).

SPECIFIC CONDUCTANCE (EXO): Jan. 2017 to current year.

pH (YSI): May 1998 to July 2012 and Feb. 2013 to Jan. 2017 (YSI discontinued).

pH (EXO): Jan. 2017 to current year.

WATER TEMPERATURE (YSI): May 1998 to July 2012 and Feb. 2013 to May 2019 (YSI discontinued).

WATER TEMPERATURE (EXO): Jan. 2017 to current year.

DISSOLVED OXYGEN (YSI LUMIN): February 2007 to July 2012 and Feb. 2013 to Jan. 2017 and (YSI discontinued).

DISSOLVED OXYGEN (EXO): Jan. 2017 to current year.

TURBIDITY (YSI 6026 sensor): Oct. 1998 to Dec. 2006 (YSI 6026 sensor discontinued).

TURBIDITY (YSI 6136 sensor): July 2004 to Aug. 2005, December 2006 to July 2012, and Feb. 2013 to May 2019 (YSI 6136 sensor discontinued).

TURBIDITY (EXO sensor): Jan. 2017 to current year.

INSTRUMENTATION - Multiparameter water-quality monitor.
REMARKS - Interruptions in record are due to ice conditions or malfunction of the recording instrument or sensors. Instruments used to measure turbidity conform to ISO 7027 standards and were made using Yellow Springs Instrument (YSI) 6026 and 6136 sensors. As of Jan. 2017, turbidity is being measured by an EXO sensor.
EXTREMES FOR PERIOD OF DAILY RECORD -

SPECIFIC CONDUCTANCE (YSI): Maximum, 2,980 microsiemens/cm, Mar. 13, 2013; minimum, 57 microsiemens/cm, Oct. 9, 2003 (discontinued). 

SPECIFIC CONDUCTANCE (EXO): Maximum, 2,740 microsiemens/cm, March 27, 2022; minimum, 69 microsiemens/cm, Sep. 5, 2018. 

pH (YSI): Maximum, 9.4 standard units, Apr. 2, 2013; minimum, 6.1 standard units, Oct. 3, 2006 (discontinued).

pH (EXO): Maximum, 8.9 standard units, July 9, 2018; minimum, 6.7 standard units, June 24, 2022.

WATER TEMPERATURE (YSI): Maximum, 35.2°C, July 20, 2006; minimum, -0.1°C, Jan. 2, 2019 (discontinued).

WATER TEMPERATURE (EXO): Maximum, 33.3°C, July 15, 2018; minimum, -0.2°C, Mar. 5, 2019.

DISSOLVED OXYGEN (YSI LUMIN): Maximum, 22.8 mg/L, Mar. 16, 2013; minimum, 0.3 mg/L, July 7, 2016 (discontinued).

DISSOLVED OXYGEN (EXO): Maximum, 20.4 mg/L, Mar. 31, 2019; minimum, 1.7 mg/L, July 19, 2018.

TURBIDITY (YSI 6026 sensor): Maximum, 2,110 FNU, Aug. 12, 2004; minimum 1.0 FNU, Jan. 8, 2002 (discontinued).

TURBIDITY (YSI 6136 sensor): Maximum, 1,640 FNU, Apr. 4, 2012; minimum, 0.3 FNU, Feb. 13, 2011 (discontinued).

TURBIDITY (EXO sensor): Maximum, 1,270 FNU, Mar. 14, 2019; minimum, 2.9 FNU, Jan. 16, 2022.