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Water-Year Summary for Site 14202650

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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(Max.,Min.,Mean)  
00060 Discharge(Mean)  
00095 Specific cond at 25C(Max.,Min.,Mean)  
00300 Dissolved oxygen(Max.,Min.,Mean)  
00400 pH(Max.,Min.,Med.)  
32295 fDOM, water, in situ(Max.,Mean,Min.)  
32315 Relative fChl, water, in situ(Max.,Min.,Mean)  
32316 fChl, water, in situ(Max.,Mean,Min.)  
32319 fPC, water, in situ(Max.,Min.,Mean)  
32321 Relative fPC, water, in situ(Max.,Min.,Mean)  
63160 Stream level, NAVD88(Mean)  
63680 Turbidity, Form Neph(Min.,Max.,Med.)  

Water year 2024: 2023-10-01 to 2024-09-30
 
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USGS Water-Year Summary 2024
14202650 WAPATO CREEK AT SW GASTON ROAD, AT GASTON, OR
LOCATION - Lat 45°26'26.31", long 123°07'30.00" referenced to North American Datum of 1983, Washington County, OR, Hydrologic Unit 17090010, on right bank and approximately 100 ft downstream from Gaston Road bridge.
DRAINAGE AREA - 24.1 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 2011 to April 2013, August 2021 to October 2023 (discontinued).
GAGE - Water-stage recorder, crest-stage gage and acoustic velocity meter. Datum of gage is 166.10 ft above NAVD of 1988 (levels by U.S. Fish and Wildlife Service).
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 402 ft³/s Dec. 28, 2022, gage height, 9.53 ft; maximum gage height, 9.54 ft Dec. 27, 2022; minimum discharge, -151 ft³/s Dec. 28, 29, 2011.
WATER-QUALITY RECORDS
PERIOD OF RECORD -

SPECIFIC CONDUCTANCE: April 2010 to July 2010, October 2011 to April 2013, May 2020 to current year.

pH: April 2010 to July 2010, October 2011 to April 2013, May 2020 to current year.

WATER TEMPERATURE: April 2010 to July 2010, October 2011 to April 2013, May 2020 to current year.

DISSOLVED OXYGEN: April 2010 to July 2010, October 2011 to April 2013, May 2020 to current year.

TURBIDITY: April 2010 to July 2010, October 2011 to April 2013, May 2020 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. Prior to May 7, 2020 data collected using a YSI 6136 turbidity sensor. Manufacturer's stated accuracy is the greater of +/- 2 percent or 0.3 FNU. FNU values below 10 are reported to nearest 0.1 FNU. Negative recorded values are reported as 0.0 FNU. Additional parameters collected at this location are available via NWISWeb.
EXTREMES FOR PERIOD OF DAILY RECORD -

SPECIFIC CONDUCTANCE: Maximum, 434 microsiemens June 22, 2022; minimum, 42 microsiemens Nov. 19, 20, 2012.

pH: Maximum, 9.2 units Aug. 10-12, 20203; minimum, 5.5 units Apr. 17, 21, 2012, June 22, 2022.

WATER TEMPERATURE: Maximum, 27.2°C July 14, 2022; minimum, 1.0°C Feb. 24, 2023.

DISSOLVED OXYGEN: Maximum, 14.6 mg/L Feb. 17, 18, 2022; minimum, 0.0 mg/L June 8-10, 2023.

TURBIDITY: Maximum, 461 FNU Nov. 23, 2011; minimum, 0.4 FNU Nov. 8, 9, 2011.