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Water-Year Summary for Site 06177000

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Available Parameters
00010 Temperature, water(Max.,Min.,Mean)  
00060 Discharge(Mean)  
00090 Redox potential(Max.,Mean,Min.)  
00095 Specific cond at 25C(Max.,Mean,Min.)  
00300 Dissolved oxygen(Max.,Mean,Min.)  
00400 pH(Med.,Max.,Min.)  
32295 fDOM, water, in situ(Max.,Mean,Min.)  
32315 Relative fChl, water, in situ(Max.,Mean,Min.)  
32321 Relative fPC, water, in situ(Max.,Mean,Min.)  
63680 Turbidity, Form Neph(Max.,Mean,Min.)  

Water year 2024: 2024-10-01 to 2025-09-30
 
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USGS Water-Year Summary 2024
06177000 MISSOURI RIVER NEAR WOLF POINT, MT
LOCATION - Lat 48°04'02.37", long 105°31'59.15" referenced to North American Datum of 1983, in SW 1/4 NW 1/4 sec.28, T.27 N., R.48 E., McCone County, MT, Hydrologic Unit 10060001, on right bank 500 ft downstream from bridge on State Highway 13, 5 mi southeast of Wolf Point, 7.8 mi downstream from Wolf Creek, and at river mile 1,701.4.
DRAINAGE AREA - 80,650 mi².  
REVISIONS HISTORY - Water Supply Paper (WSP) 1146: 1931. WSP 1729: Drainage area. WDR MT-2013: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - September 1928 to current year.
GAGE - Water-stage recorder. Datum of gage is 1,968.57 ft, referenced to the National Geodetic Vertical Datum of 1929. April 13, 1930 to March 7, 2012, water-stage recorder at datum 10.00 ft lower. Prior to Apr. 13, 1930, nonrecording gages at Wolf Point ferry landing 5.5 mi upstream at different elevation.
REMARKS - After 1943, flow regulated by Fort Peck Dam and many other reservoirs upstream from station. Numerous diversions for irrigation occur upstream from station.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of June 14, 1908, reached a stage of about 20 ft (site and elevation then in use).
EXTREMES FOR PERIOD PRIOR TO REGULATION - (1929-1939) Annual mean discharge, 7,183 ft³/s, Highest annual mean discharge, 10,300 ft³/s, 1939 Lowest annual mean discharge, 4,891 ft³/s, 1937, Highest daily mean discharge, 56,700 ft³/s, May 23, 1939, Lowest Daily mean discharge, 840 ft³/s, Nov 29, 1937, Annual seven-day minimum, 910 ft³/s, Feb 10, 1938, Maximum peak discharge, 66,800 ft³/s, Mar 25, 1939, Maximum peak stage, 14.40 ft, Mar 25, 1939, Annual runoff 5,204,000 ac-ft.
WATER-QUALITY RECORDS
PERIOD OF RECORD - Water years 1949-51, 1961-62, 1965-68, 1970-73, May 2002 to September 2004.
PERIOD OF DAILY RECORD - WATER TEMPERATURE: July 1979 to September 1985, seasonal records May 2002 to September 2004.
INSTRUMENTATION - Temperature recorder installed May 16, 2002. Removed during 2006 WY.
REMARKS -  
EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURE: Maximum, 21.5°C, Aug. 12-14, 2003; minimum, 0.0°C, many days during winter periods.