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Water-Year Summary for Site 05599490

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Available Parameters
00010 Temperature, water(Max.,Min.,Mean)  
00060 Discharge(Mean)  
00065 Gage height(Mean)  
00095 Specific cond at 25C(Max.,Min.,Mean)  
00300 Dissolved oxygen(Max.,Min.,Mean)  
00400 pH(Max.,Min.,Med.)  
51289 OrthoPO4, in situ(Max.,Min.,Mean)  
63680 Turbidity, Form Neph(Max.,Min.,Mean)  
63680 Turbidity, Form Neph(Min.,Mean,Max.)  
99133 NO3+NO2,water,insitu(Max.,Min.,Mean)  

Water year 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
05599490 BIG MUDDY RIVER AT RTE 127 AT MURPHYSBORO, IL
LOCATION - Lat 37°45'30", long 89°19'40" referenced to North American Datum of 1983, in NE 1/4 NE 1/4 sec.9, T.9 S., R.2 W., Jackson County, IL, Hydrologic Unit 07140106, on right bank on upstream side of State Highway 127 in Murphysboro, and at mile 37.5.
DRAINAGE AREA - 2,159 mi².
REVISIONS HISTORY - Revisions: Gage datum was updated to 335.06 ft NAVD88 on March 29, 2022, as determined by a GNSS Level II survey. Gage datum was previously published as 335.50 ft NGVD29 from levels.
SURFACE-WATER RECORDS
PERIOD OF RECORD -
SURFACE-WATER DISCHARGE AND STAGE
  DISCHARGE: December 1916 to current (fragmentary prior to 1931). Prior to October
    2007, published as "Big Muddy River at Murphysboro" (05599500).
    Records are considered equivalent.
  STAGE: Water years 1994 to current.
SURFACE-WATER QUALITY
  SPECIFIC CONDUCTANCE: Water years 1976-81 and October 2015 to current.
  WATER TEMPERATURE: Water years 1976-81 and October 2015 to current.
  DISSOLVED OXYGEN: October 2015 to current.
  PH: October 2015 to current.
  TURBIDITY: October 2015 to current.
  NITRATE: October 2015 to current.
  PHOSPHATE: October 2015 to current.
GAGE - U.S. Army Corps of Engineers water-stage recorder, satellite telemeter, water-quality monitor, crest-stage gage, and acoustic velocity meter. Datum of gage is 335.06 ft above NAVD of 1988. Oct. 6, 1931 to Nov. 13, 1973, non-recording gage read twice daily. Prior to Oct. 1, 2007, auxiliary gage about 1.5 miles downstream at Big Muddy River at Murphysboro, IL (05599500). Converted to base gage Oct. 1, 2007.
REMARKS - Flow regulated at Rend Lake (station 05595950) 67.8 mi upstream from gage since October 1970. Accuracy of records is discussed in the annual Station Analysis archived at the USGS IL Water Science Center.
EXTREMES OUTSIDE PERIOD OF RECORD - SURFACE-WATER DISCHARGE AND STAGE: Flood of Feb. 2, 1916, reached a stage of 34.9 ft, (at station 05599500), present datum, discharge, 28,000 ft³/s.
EXTREMES FOR PERIOD OF RECORD -
SURFACE-WATER DISCHARGE AND STAGE: Prior to Rend Lake dam (Oct. 1970): Maximum discharge, 33,300 ft³/s, May 11, 1961, gage height, 37.77 ft, site then in use, maximum gage height, 37.97 ft, May 12, 1961, site then in use; minimum daily discharge (reverse flow), -4,400 ft³/s, June 3, 1947, backwater from Mississippi River, site then in use; No flow unaffected by backwater, Aug. 13 to Sept. 1, 1936, site then in use. Since Rend lake dam: Maximum discharge, 42,400 ft³/s, May 2, 2011, gage height, 40.45 ft, maximum gage height, 40.47 ft, May 3, 2011, discharge, 36,300 ft³/s; minimum daily discharge (reverse flow), -2,600 ft³/s, Aug. 6, 1993, backwater from Mississippi River, minimum daily unaffected by backwater, 27 ft³/s, Nov. 4-5, 1999.
SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily, 1,700 mg/L, Feb. 28, 1987; minimum daily, 2 mg/L, Aug. 10, 11, 1993.
SUSPENDED-SEDIMENT LOADS: Maximum daily, 20,500 tons, May 3, 1983; minimum daily, -45 tons, Aug. 6, 1993.
WATER-TEMPERATURE: Maximum, 31.1 oC, July 25-26, 2016; minimum, -0.08 oC, Jan. 9, 2017.
SPECIFIC CONDUCTANCE: Maximum, 2,014 uS/cm, Oct. 16, 2017; minimum, 118 uS/cm, Aug. 14, 2016.
DISSOLVED OXYGEN: Maximum, 13.8 mg/L, Jan. 10, 2017; minimum, 0.76 mg/L, Oct. 17, 2017.
pH: Maximum, 8.0 units, Nov. 17, 2015; minimum, 6.7 units, July 7-8 and Aug. 20-24, 2016.
TURBIDITY(YSI): Maximum, 460 FNU, July 7 & August 15, 2016; minimum, 5.9 FNU, Dec. 24, 2016.
TURBIDITY(HACH): Maximum, 860 FNU, February 24, 2016; minimum, 8.4 FNU, May 9, 2016
NITRATE: Maximum, 4.79 mg/L, Dec. 27, 2015; minimum, 0.0 mg/L, Many days in most years.
PHOSPHATE: Maximum, 0.378 mg/L, Nov. 18, 2015; minimum, 0.011 mg/L, March 25, 2016.