USGS Water-Year Summary for Site 06893890

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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(Max.,Min.)
	63680 Turbidity, Form Neph(Max.,Mean,Min.)

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Water year 2023: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2023

06893890 EAST FORK LITTLE BLUE RIVER NEAR BLUE SPRINGS, MO

LOCATION - Lat 39°01'32", long 94°20'37" referenced to North American Datum of 1927, in NE 1/4 NE 1/4 NW 1/4 sec.33, T.49 N., R.31 W., Jackson County, MO, Hydrologic Unit 10300101, on left downstream side of bridge on east bound lane of U.S. Highway 40, 2.6 miles west of Blue Springs, and 1.5 miles upstream from confluence with Little Blue River.

DRAINAGE AREA - 34.4 mi².

SURFACE-WATER RECORDS

PERIOD OF RECORD - Oct 1974 to Sep 30, 1999, Jun 6, 2007 to Sep 30 2007 and Nov 20, 2009 to current year. Stage only Mar 27, 2002 to Nov 27, 2006.

GAGE - Water stage recorder. Datum of the gage is 751.71 ft. above North American Vertical Datum of 1988. Prior to March 2002, at same site but at datum 1.66 ft higher.

REMARKS - Accuracy of records is discussed in the annual Station Analysis archived at the USGS MO Water Science Center.

EXTREMES FOR PERIOD PRIOR TO REGULATION - Maximum discharge 11,000 ft³/s, Aug 13, 1982, gage height, 22.14 ft; no flow most years.

WATER-QUALITY RECORDS

PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: Dec 2009 to Jun 2020. pH: Dec 2009 to Dec 2013. WATER TEMPERATURE: Dec 2009 to Jun 2020. DISSOLVED OXYGEN: Dec 2009 to Dec 2013. TURBIDITY: Dec 2009 to Jun 2020.

REMARKS -

Interruptions or periods of missing record may be due to instrument failure, ice conditions, no flow conditions, or data corrections exceeding allowable criteria, which were deleted.

SPECIFIC CONDUCTANCE: For Water Year 2019, records are rated excellent except for the following periods: Nov. 7-8, Apr 2, 4, 7, rated good; Jun 11-18, Sep 15-24, rated fair.

WATER TEMPERATURE: For Water Year 2019, all records are rated excellent.

TURBIDITY: For Water Year 2019, all records are rated excellent.

As of June 5, 2015, turbidity data collected using YSI EXO2 sensors (previously collected using YSI 6136 6-series sensors). Note that extreme values recorded using YSI EXO2 sensors may exceed those previously recorded using YSI 6136 sensors. Manufacturer specifications of range and accuracy for both sensor models are as follows: YSI 6136: 0 to 1000 FNU, ±2% of the reading or 0.3 NTU (whichever is greater). YSI EXO2: 0 to 999 FNU: 0.3 FNU or ±2% of reading (whichever is greater); 1000 to 4000 FNU: ±5% of reading.

EXTREMES FOR PERIOD OF RECORD -

SPECIFIC CONDUCTANCE: Maximum recorded, 1,070 uS/cm, Dec 20, 2012; minimum recorded, 101 uS/cm, Aug 20, 2011.

pH: Maximum recorded, 8.9 standard units, Mar 6, 10, 2012; minimum recorded, 6.7 standard units, Jul 18, 2012.

WATER TEMPERATURE: Maximum recorded, 34.2 °C, Jul 12, 2011; minimum recorded, -0.1 °C, Feb 8-10, 2011, Dec 29, 2013, several days, Dec - Mar 2014.

DISSOLVED OXYGEN: Maximum recorded, 15.3 mg/L, Jan 18-19, 2011; minimum recorded, 1.0 mg/L, Aug 2, 2012.

TURBIDITY: Maximum recorded, 1,540 FNU, Aug 7, 2014; minimum recorded, 0.0 FNU, Nov 24-25, 29-30, 2018, several days, Mar 2016, Jan-Feb, Jun, 2018 (+/- 2.0 FNU).

EXTREMES FOR PERIOD OF DAILY RECORD -

SPECIFIC CONDUCTANCE: Maximum daily, 989 uS/cm, Jan 19, 2018; minimum daily, 311 uS/cm, Aug 22, 2017.

pH: Maximum daily, 8.4 standard units, several days, 2010, 2011, 2013; minimum daily, 7.0 standard units, Jul 17-18, 2012.

WATER TEMPERATURE: Maximum daily, 31.6 °C, Aug 3, 2010; minimum daily, 0.0 °C, Jan 12-14, 19-26, 2011, several days, Jan - Feb 2014.

DISSOLVED OXYGEN: Maximum daily, 13.8 mg/L, Mar 1, 2011; minimum daily, 1.5 mg/L, Oct 24, 2012.

TURBIDITY: Maximum daily, 180 FNU, Jul 12, 2010, Sep. 1, 2012; minimum daily, 0.8 FNU, Mar 20, 2017, Feb 5, 2018 (+/- 2.0 FNU).