USGS Water-Year Summary for Site 04168400

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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.)
	63680 Turbidity, Form Neph(Med.,Min.,Max.)

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

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USGS Water-Year Summary 2024

04168400 LOWER RIVER ROUGE AT DEARBORN, MI

LOCATION - Lat 42°18'30", long 83°15'10" referenced to North American Datum of 1927, in NE 1/4 sec.22, T.2 S., R.10 E., Wayne County, MI, Hydrologic Unit 04090004, on left bank, 400 ft upstream from bridge on Military Street in Dearborn.

DRAINAGE AREA - 91 mi².

SURFACE-WATER RECORDS

PERIOD OF RECORD - October 1997 to December 2006, May to October 2008, May to October 2013, May 2015 to current year.

GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 579.99 ft above NAVD 88. Prior to May 2008, at datum 1.0 ft higher.

REMARKS - Flow contains effluent from sewage-treatment plant, which originates outside the basin except for September, October 2017 when plant was offline for repairs.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 4,550 ft³/s, Aug. 25, 2023, gage height, 13.20 ft, from rating curve extended above 2,500 ft³/s; maximum gage height, 13.21 ft, June 27, 2021; minimum, 1.0 ft³/s, Oct. 5, 2017, gage height, 2.56 ft.

WATER-QUALITY RECORDS

PERIOD OF RECORD - Water years 1999 to 2009, 2013 to 2018, 2021 to current year.

PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: Apr. 30, 2015 to September 2016, April 2021 to current year. pH: Apr. 30, 2015 to September 2016, April 2021 to current year. pH: April 2021 to current year. WATER TEMPERATURE: April 1999 to October 2006 (not operated during winter months), May to October 2008, May to October 2013, Apr. 30, 2015 to September 2016, May to October 2017, April 2021 to current year. DISSOLVED OXYGEN: April 1999 to October 2006;(not operated during winter months), May to October 2008, May to October 2013, Apr. 30, 2015 to September 2016, May to October 2017, April 2021 to current year. TURBIDITY: Apr. 30, 2015 to September 2016, April 2021 to current year.

INSTRUMENTATION - Water-quality monitor telemeter, set for 15-minute measurement interval.

EXTREMES FOR PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: Maximum recorded, 5,830 microsiemens, Feb. 25, 2016; minimum recorded, 157 microsiemens, June 26, 2021. pH: Maximum recorded, 8.6 std. units, Feb. 13, 14, 2016; minimum recorded, 6.9 std. units, Aug. 13, 2016. pH: Maximum recorded, 8.3 std. units, July 13, 2021; minimum recorded, 7.5 std. units, May 24, June 26, 2021. WATER TEMPERATURE: Maximum recorded, 27.5°C, Aug. 2, 2006; minimum recorded, -0.1°C, Feb. 13, 14, 2016. DISSOLVED OXYGEN: Maximum recorded, 21.0 mg/L, Mar. 28, 2001; minimum recorded, 0.4 mg/L, May 22, 2004. TURBIDITY: Maximum recorded, 850 FNU, May 30, 2015; minimum recorded, 2.3 FNU, Oct. 18, 2015.