USGS Water-Year Summary for Site 453016123052400

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

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

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USGS Water-Year Summary 2024

453016123052400 FERNHILL WETLANDS AT OUTFALL, AT FOREST GROVE, OR

LOCATION - Lat 45°30'15.7", long 123°05'24.2" referenced to North American Datum of 1983, in sec.08, T.1 S., R.3 W., Washington County, OR, Hydrologic Unit 17090010, Fernhill Wetland Park in Forest Grove, OR.

WATER-QUALITY RECORDS

PERIOD OF RECORD -

SPECIFIC CONDUCTANCE: May 2019 to October 2020 (discontinued) (seasonal records only).

pH: May 2019 to October 2020 (discontinued) (seasonal records only).

WATER TEMPERATURE: May 2019 to October 2020 (discontinued) (seasonal records only).

WATER TEMPERATURE POST-AERATION: May 2019 to November 2020 (discontinued) (seasonal records only).

DISSOLVED OXYGEN: May 2019 to October 2020 (discontinued) (seasonal records only).

DISSOLVED OXYGEN POST-AERATION: May 2019 to November 2020 (discontinued) (seasonal records only).

TURBIDITY: May 2019 to October 2020 (discontinued) (seasonal records only).

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 of reading or 0.3 Formazin Nephelometric Units (FNU) for 0-999 FNU, and +/- 5 percent for 1,000-4,000 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 not referenced in this document are available via NWISWeb.

EXTREMES FOR PERIOD OF RECORD -

SPECIFIC CONDUCTANCE: Maximum, 727 microsiemens Sept. 16, 2019; minimum, 412 microsiemens May 9, 2020.

pH: Maximum, 9.4 units July 7, 2020; minimum, 6.5 units July 15, Aug. 8-13, 2019.

WATER TEMPERATURE: Maximum, 28.8°C June 12, 2019; minimum, 3.9°C Nov. 30, 2019.

WATER TEMPERATURE POST-AERATION: Maximum, 28.5°C May 10, 2020; minimum, 3.6°C Dec. 1, 2019.

DISSOLVED OXYGEN: Maximum, 15.2 mg/L May 2, 2020; minimum, 0.0 mg/L many days June to September 2019.

DISSOLVED OXYGEN POST-AERATION: Maximum, 16.1 mg/L Oct. 30, 31, 2019; minimum, 0.0 mg/L June 3-8, 2020.

TURBIDITY: Maximum, 31.7 FNU Oct. 10, 2020; minimum, <1 FNU Aug. 22, 25, 2019.