| Summary: | STREAMFLOW RECORDS OF MAJOR RIVERS OR STREAMS OF THE FIVE BASINS Measuring Discharge (CFS)1 Annua] Average liver l�aMoa Avo-age Maximum Minimum Discharge (AF? Missouri BtarurckJ �,7*0.0 �,900 4,000.0 U.iKJXC Re4 Drayton 3,818.0 92,900 7.7 2,766.,000 Souris Westtope 265.0 12,600 0 191,992 Janes LaMoure 100.0 6,800 0 72,450 Big Coulee Qturchs Ferry 41.1 1*0 0 29,780 (Devils Lake Basin) 'Cubk feet per mam*�the rate of flaw npresmhng a volume eft cubic foot passing a given point during a second; equals US.8 gallons per minute, ^Acre-foot�the Amount of water that will COBB m acre of land a fwt deep; equals 325,�] gallons, mearisprpost-enmjietian of Garrison Otm. Fig. 12-Schematic map showing the average discharge of the principal rivers in North Dakota. The Hudson Bay drainage consists of the Souris and Red River systems, including the large, noncontributing, closed Devils Lake Basin (fig. 11). The longest tributary stream to the Red River is the Sheyenne River, which extends from central North Dakota, east and southeastward, before looping northeastward near Lisbon. There are five major hydrologic subdivisions in North Dakota: the Missouri River Basin, the James River Basin, the Red River Basin, the Devils Lake Basin, and the Souris River Basin. Surface water quality in North Dakota is quite variable and is influenced by climatic conditions, land use, erosion, and shallow groundwater discharged from springs. Increased stream flows, associated with snow melt and precipitation, generally cause a decrease in dissolved solids and an increase in suspended 522 Chapter iO Physical Characteristics
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