USGS Water-Year Summary for Site 04176500

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	Available Parameters
	00010 Temperature, water(Mean,Max.,Min.)
	00060 Discharge(Mean)
	00095 Specific cond at 25C(Min.,Max.,Mean)
	00300 Dissolved oxygen(Max.,Min.,Mean)
	00400 pH(Max.,Min.,Med.)
	63680 Turbidity, Form Neph(Med.,Max.,Min.)

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

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USGS Water-Year Summary 2024

04176500 RIVER RAISIN NEAR MONROE, MI

LOCATION - Lat 41°57'38", long 83°31'52" referenced to North American Datum of 1927, Monroe County, MI, Hydrologic Unit 04100002, on left bank 0.8 mi downstream from bridge on Ida Maybee Road, 5.0 mi downstream from Saline River, and 7.5 mi west of Monroe.

DRAINAGE AREA - 1,042 mi².

REVISIONS HISTORY - WSP 954: 1938-40(M), 1941. WSP 1437: 1939, 1948. WSP 2112: Drainage area.

SURFACE-WATER RECORDS

PERIOD OF RECORD - September 1937 to current year. Published as "Raisin River at Monroe" 1937-52 and as "River Raisin at Monroe" 1952-53.

GAGE - Water-stage recorder. Datum of gage is 615.82 ft above NAVD 88, converted on July 9, 2020 from NGVD 29. Prior to Oct. 1, 1953, at site 9 mi downstream at datum 46.26 ft lower.

REMARKS - Diurnal fluctuation caused by powerplants upstream from station prior to June 27, 1968. At times, flow is affected by irrigation pumpage.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 15,300 ft³/s, Mar. 16, 1982, gage height, 10.4 ft; maximum gage height, 11.16 ft, Mar. 15, 1982, backwater from ice; minimum discharge, approximately 2.0 ft³/s, Sept. 4, 1938, Sept. 19, 20, 1941, site then in use.

WATER-QUALITY RECORDS

PERIOD OF RECORD - Water years 1966-75, 1978-95, 2011 to current year.

PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: April 1978 to July 1981, March 2011 to current year. pH: March 2011 to February 2019. WATER TEMPERATURE: March 1966 to September 1972, April 1978 to July 1981, March 2011 to current year. DISSOLVED OXYGEN: March 2011 to current year. TURBIDITY: March 2011 to current year. SUSPENDED-SEDIMENT DISCHARGE: March 1966 to September 1972.

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

EXTREMES OUTSIDE PERIOD OF RECORD - A specific conductance of 200 microsiemens was measured Feb. 25, 1985.

EXTREMES FOR PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: Maximum recorded, 1,020 microsiemens, Feb. 16, 1979; minimum recorded 258 microsiemens, Dec. 2, 2011. pH: Maximum recorded, 8.9 std. units, Aug. 16, 2014, Aug. 8, 2016, Oct. 11, 2016; minimum recorded, 7.3 std. units, Feb. 1, 2, 3, 2019. WATER TEMPERATURE: Maximum recorded, 34.6°C, July 10, 2012; minimum recorded, -0.2°C, on several days during water years 2015, 2019. DISSOLVED OXYGEN: Maximum recorded, 18.6 mg/L, Nov. 26, 2022; minimum recorded, 4.6 mg/L, Aug. 4, 2012. TURBIDITY: Maximum recorded, 1350 FNU, June 28, 2013; minimum recorded, 0.1 FNU, Dec. 5, 2012. SEDIMENT CONCENTRATION: Maximum daily mean, 1,430 mg/L, Dec. 22, 1967; minimum daily mean, 1 mg/L on several days in 1970. SEDIMENT LOAD: Maximum daily, 28,000 tons, Dec. 22, 1967; minimum daily, 0.29 ton, Aug. 31, 1971.