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Water-Year Summary for Site 14206241

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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Available Parameters
00010 Temperature, water(Min.,Mean,Max.)  
00095 Specific cond at 25C(Max.,Min.,Mean)  
00300 Dissolved oxygen(Max.,Min.,Mean)  
00400 pH(Max.,Min.,Med.)  
32316 fChl, water, in situ(Max.,Min.,Mean)  
32319 fPC, water, in situ(Min.,Max.,Mean)  
63680 Turbidity, Form Neph(Max.,Min.,Med.)  

Water year 2020: 2019-10-01 to 2020-09-30
 

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USGS Water-Year Summary 2020
14206241 TUALATIN RIVER AT HWY 219 NEAR HILLSBORO, OR
LOCATION - Lat 45°30'01", long 122°59'24" referenced to North American Datum of 1927, Washington County, OR, Hydrologic Unit 17090010, on left bank.
WATER-QUALITY RECORDS
PERIOD OF RECORD - SPECIFIC CONDUCTANCE:  April 2019 to current year.

pH: April 2019 to current year.

WATER TEMPERATURE: April 2019 to current year.

DISSOLVED OXYGEN: April 2019 to current year.

TURBIDITY: April 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 EXO2 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. Additional parameters and chemical analyses collected at this location not referenced in this document are available via NWISWeb.
EXTREMES FOR PERIOD OF RECORD -

SPECIFIC CONDUCTANCE: Maximum, 143 microsiemens Oct. 1, 2019; minimum, 67 microsiemens Jan. 30, 2020.

pH: Maximum, 7.5 units Sept. 30, Oct, 1, 2, 2019; minimum, 6.7 units Dec. 22-26, 2019.

WATER TEMPERATURE: Maximum, 20.7°C June 26, 2020; minimum, 2.2°C Dec. 1, 2019.

DISSOLVED OXYGEN: Maximum, 13.0 mg/L Nov. 30, Dec. 1, 3, 2019; minimum, 6.7 mg/L July 5, 2020.

TURBIDITY: Maximum, 88.0 FNU Dec. 21, 2019; minimum, 1.8 FNU Nov. 1-3, 2019.