USGS Water-Year Summary for Site 14151000

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	Available Parameters
	00010 Temperature, water(Max.,Min.,Mean)
	00060 Discharge(Mean)
	00300 Dissolved oxygen(Max.,Min.,Mean)
	63680 Turbidity, Form Neph(Max.,Med.,Min.)
	63680 Turbidity, Form Neph(Max.,Min.,Med.) [(2)]
	63680 Turbidity, Form Neph(Med.,Min.,Max.) [(3)]

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

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USGS Water-Year Summary 2024

14151000 FALL CREEK BELOW WINBERRY CREEK, NEAR FALL CREEK, OR

LOCATION - Lat 43°56'40", long 122°46'25" referenced to North American Datum of 1927, in NW 1/4 SE 1/4 sec.02, T.19 S., R.1 W., Lane County, OR, Hydrologic Unit 17090001, on right bank, 10 ft upstream from highway bridge, 1.1 mi downstream from Fall Creek Dam, 2.3 mi southeast of town of Fall Creek and at mile 6.1.

DRAINAGE AREA - 186 mi².

REVISIONS HISTORY - WSP 1094: 1946(M). WSP 1248: Drainage area.

SURFACE-WATER RECORDS

PERIOD OF RECORD - October to December 1911 (published as Big Fall Creek near Fall Creek; gage heights and discharge measurements only), September 1935 to current year.

GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 637.81 ft above NGVD of 1929 (U.S. Army Corps of Engineers bench mark). Oct. 1 to Dec. 31, 1911, nonrecording gage at site 0.25 mi downstream at different datum. Sept. 9, 1935 to Aug. 3, 1950, nonrecording gage and Aug. 4, 1950 to Aug. 26, 1982, water-stage recorder, on left bank, at present site and datum. Aug. 27, 1982 gage moved to right bank at present site and datum.

REMARKS - Flow regulated since 1966 by Fall Creek Lake (active capacity, 115,500 acre-ft). No diversion upstream from station. Computation of monthly and annual adjusted flows discontinued water year 2014.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 24,700 ft³/s Dec. 11, 1956, gage height, 18.89 ft, from rating curve extended above 9,700 ft³/s; minimum discharge, 1.5 ft³/s Oct. 7, 8, 1965.

WATER-QUALITY RECORDS

PERIOD OF DAILY RECORD -

WATER TEMPERATURE: August 1950 to September 1997, August 2001 to current year.

DISSOLVED OXYGEN: October 2012 to April 2018 (seasonal records only), December 2021 to October 2022, August 2023 to current year.

TURBIDITY: October 2012 to March 2018 (seasonal records only), December 2021 to October 2022, August 2023 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 an Aqua-TROLL 600 sonde. Manufacturer's stated accuracy is the greater of +/- 2 percent or +/- 0.5 formazin nephelometric units (FNU) for 0-4000 FNU. Prior to August 2023 data was collected using a Hydrolab DS5X turbidity sensor. Manufacturer's stated accuracy is the greater of +/- 1 percent up to 100 FNU or +/- 3 percent from 100-400 FNU, or +/-5 percent from 400-3000 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 -

WATER TEMPERATURE: Maximum, 26.0°C July 28, 1958; minimum, 0.0°C Dec. 23, 24, 1990.

DISSOLVED OXYGEN: Maximum, 14.0 mg/L Jan. 2, 3, 2016, Feb. 25, 2022; minimum, 0.7 mg/L Nov. 5, 2015.

TURBIDITY: Maximum, >3000 FNU Nov. 5, 2015, Nov. 3, 10, 2016; minimum, <1 FNU on many days during most years.