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Water-Year Summary for Site 06041000

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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Available Parameters
00010 Temperature, water(Max.,Min.,Mean)  
00060 Discharge(Mean)  

Water year 2019: 2019-10-01 to 2020-09-30
 

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USGS Water-Year Summary 2019
06041000 MADISON RIVER BELOW ENNIS LAKE, NEAR MCALLISTER, MT
LOCATION - Lat 45°29'24.83", long 111°38'04.22" referenced to North American Datum of 1983, in SW 1/4 SE 1/4 NW 1/4 sec.17, T.4 S., R.1 E., Madison County, MT, Hydrologic Unit 10020007, on right bank 500 ft downstream from Madison powerplant, 1.5 mi downstream from Ennis Lake, 5.7 mi northeast of McAllister, and at river mile 38.8.
DRAINAGE AREA - 2,150.4 mi².
REVISIONS HISTORY - WSP 1559: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1901 to December 1905, October 1906 to current year. Prior to October 1938 adjusted monthly runoff only, published in Water Supply Paper (WSP) 1309. Published as "below Madison Reservoir" 1938-49. Records published as "near Red Bluff" 1890-94 and as "near Norris" 1910 are not equivalent and are published as "near Norris" in WSP 1309.
GAGE - Water-stage recorder. Elevation of gage is 4,689.03 ft (levels by U.S. Army Corps of Engineers), referenced to the National Geodetic Vertical Datum of 1929. Prior to May 7, 1941, nonrecording gage in wooden stilling well at present site at different elevation. May 7, 1941, to Jan. 13, 1945, nonrecording gages in concrete stilling well at present site and elevation.
REMARKS -
01/23/2018 to 11/18/2018: records are good.
11/05/2016 to 01/22/2018: records are good.
10/06/2015 to 11/04/2016: records are good.
11/05/2014 to 11/05/2015: records are good. 
10/01/2014 to 11/04/2014: records are good.  

Flow is regulated by Hebgen Lake (station number 06038000) and Ennis Lake (station number 06040500). 
Diversions for irrigation of about 23,000 acres occur upstream from the station.
WATER-QUALITY RECORDS
PERIOD OF RECORD - Water years 1972-73, 1977 to current year.
PERIOD OF DAILY RECORD -
WATER TEMPERATURE: June 1977 to current year.
INSTRUMENTATION - Water temperature recorder was installed June 21, 1977.
REMARKS -
WATER TEMPERATURE
11-04-2017 to 10-08-2018: records are good
10-04-2016 to 11-03-2017: records are good.
10-06-2015 to 10-03-2016: records are good, except records for October 6 to April 2, May 10 to June 14 are fair and April 3 to May 9 are poor.
10-01-2014 to 10-05-2015: records are fair.
10-01-2013 to 09-30-2014: records are fair.
EXTREMES FOR PERIOD OF DAILY RECORD -
WATER TEMPERATURE: Maximum, 24.9°C, July 5; minimum, 
0.0°C several to many days during winter months most years.