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Water-Year Summary for Site 06926510

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Available Parameters
00010 Temperature, water(Min.)  
00060 Discharge(Mean)  
00065 Gage height(Obs.)  

Water year 2024: 2024-10-01 to 2025-09-30
 
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USGS Water-Year Summary 2024
06926510 OSAGE RIVER BELOW ST. THOMAS, MO
LOCATION - Lat 38°25'17.2", long 92°12'29.7" referenced to North American Datum of 1983, in NW 1/4 NW 1/4 sec.1, T.42 N., R.12 W., Cole County, MO, Hydrologic Unit 10290111, on downstream bridge pier of State Highway B, 3.8 mi north of St. Thomas, and at mile 34.5.
DRAINAGE AREA - 14,584 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - Oct 1, 1996 to current year. Aug 1931 to Sep 30, 1996, records collected at site 8.6 mi upstream, published as Osage River near St. Thomas (06926500).
GAGE - Water-stage recorder. Datum of gage is 525.58 ft above North American Vertical Datum of 1988.
REMARKS - Accuracy of records is discussed in the annual Station Analysis archived at the USGS MO Water Science Center.  Flow is mostly regulated from Bagnell Dam, 47.2 miles upstream. At times there can be backwater from the Missouri River when the gage at Jefferson City is above 22 feet.
WATER-QUALITY RECORDS
PERIOD OF RECORD - Oct 1974 to current year.
PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: Oct 1974 to Sep 1981. WATER TEMPERATURE: Oct 1974 to Sep 1981.
REMARKS - National Stream-Quality Accounting Network station Oct 1975 to Sep 1995. Ambient Water-Quality Monitoring Network station Oct 1995 to current year.
EXTREMES FOR PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: (water years 1975-81) Maximum daily, 398 microsiemens per centimeter, Jan 1, 1981; minimum daily, 140 microsiemens per centimeter, Sep 3, 1981. WATER TEMPERATURE: (water years 1975-81) Maximum daily, 30.0 °C, Jul 29, 1977, Jul 25 and Aug 11, 1980; minimum daily, 0.0 °C, Jan 21, 1978.