USGS Water-Year Summary for Site 452230122512201

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

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Water year 2024: 2024-10-01 to 2025-09-30

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USGS Water-Year Summary 2024

452230122512201 CHICKEN CREEK AT SCHOLLS-SHERWOOD HWY, SHERWOOD, OR

LOCATION - Lat 45°22'30.09", long 122°51'21.76" referenced to North American Datum of 1927, Washington County, OR, Hydrologic Unit 17090010, on left bank.

WATER-QUALITY RECORDS

PERIOD OF RECORD -

SPECIFIC CONDUCTANCE: May 2001 to December 2011 (seasonal records only), December 2019 to current year.

pH: May 2001 to December 2011 (seasonal records only).

WATER TEMPERATURE: May 2001 to December 2011 (seasonal records only), December 2019 to current year.

DISSOLVED OXYGEN: May 2001 to December 2011 (seasonal records only).

TURBIDITY: May 2001 to December 2011 (seasonal records only), December 2019 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 EXO3 sonde. Manufacturer's stated accuracy is the greater of +/- 2 percent or 0.3 Formazin Nephelometric Units (FNU) for 0-999 FNU, and +/- 5 percent for 1,000-4,000 FNU. Prior to Dec. 2, 2019, data was collected using a YSI 6026 turbidity sensor. Manufacturer's stated accuracy is the greater of +/- 5 percent or 2 FNU. FNU values below 10 are reported to the nearest 0.1 FNU.

EXTREMES FOR PERIOD OF RECORD -

SPECIFIC CONDUCTANCE: Maximum, 219 microsiemens Aug. 22, 2004, Sept, 17, 2008, July 30, 2009, Sept. 18, 2020; minimum, 48 microsiemens Jan. 13, 2021.

pH: Maximum, 7.5 units Dec. 4, 9, 10, 2003; minimum, 6.5 units Oct. 11-15, 2001, Dec. 16, 2002, Nov. 6, 7, 2006, Oct. 20, 21, 2007.

WATER TEMPERATURE: Maximum, 25.7°C June 28, 2021; minimum, 0.3°C Jan. 6, 2004.

DISSOLVED OXYGEN: Maximum, 12.2 mg/L Apr. 25, 2008; minimum, 3.0 mg/L Aug. 2, 2009.

TURBIDITY: Maximum, 348 FNU Aug. 9, 2003; minimum, 1.5 FNU Oct. 26, 2006.