USGS Water-Year Summary for Site 14317450

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	Available Parameters
	00010 Temperature, water(Max.,Min.,Mean)
	00095 Specific cond at 25C(Max.,Min.,Mean)
	00300 Dissolved oxygen(Max.,Min.,Mean)
	00400 pH(Max.,Min.,Med.)
	63680 Turbidity, Form Neph(Med.,Max.,Min.)

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

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USGS Water-Year Summary 2023

14317450 NORTH UMPQUA RIVER NEAR IDLEYLD PARK, OR

LOCATION - Lat 43°19'29", long 122°59'55" referenced to North American Datum of 1927, in SW 1/4 NE 1/4 sec.12, T.26 S., R.3 W., Douglas County, OR, Hydrologic Unit 17100301, on right bank, 0.5 mi upstream from Rock Creek bridge, 2 mi east of Idleyld Park and at mile 36.3.

DRAINAGE AREA - 886 mi². at former site, 0.5 mi downstream.

WATER-QUALITY RECORDS

PERIOD OF DAILY RECORD -

SPECIFIC CONDUCTANCE: January 1998 to current year.

pH: January 1998 to current year.

WATER TEMPERATURE: January 1998 to current year.

DISSOLVED OXYGEN: January 1998 to current year.

TURBIDITY: October 1999 to current year.

INSTRUMENTATION - Water-quality monitor. Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Government.

REMARKS - TURBIDITY: Data collected using a YSI EXO2 sonde. Manufacturers stated accuracy is the greater of +/- 2 percent or 0.3 Formazin Nephelometric Units (FNU) except for 1,000-4,000 FNU, which is +/- 5 percent. Prior to Oct. 17, 2017, data collected using a YSI 6136 turbidity sensor. Manufacturers stated accuracy is the greater of +/- 5 percent or 2 FNU. FNU values below 10 are reported to nearest 0.1 FNU. Negative recorded values are reported as 0.0 FNU.

EXTREMES FOR PERIOD OF DAILY RECORD -

SPECIFIC CONDUCTANCE: Maximum, 79 microsiemens Sept. 20, 2021; minimum recorded, 26 microsiemens Nov. 21, 1998, Dec. 30, 2005, but may have been lower during period of missing record.

pH: Maximum, 9.8 units July 25, 2004; minimum recorded, 6.1 units Dec. 18, 1999, but may have been lower during period of missing record.

WATER TEMPERATURE: Maximum, 23.7°C June 28, 2021; minimum, 0.0°C Dec. 8-12, 2009, Dec. 8-11, 2013.

DISSOLVED OXYGEN: Maximum recorded, 16.1 mg/L Dec. 17, 2005, but may have been higher during period of missing record; minimum recorded, 6.4 mg/L Aug. 14, 2001.

TURBIDITY: Maximum recorded, 490 FNU Dec. 30, 2005, but may have been higher during period of missing record; minimum, <1 FNU on many days each year.