Flow (cubic feet per second) 30,000 25,000 Souris River at Westhope (213-year) 2011 20,000 1882 15,000 1976 10,000 5,000 0
1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2011 1961 1963 1965 1967 1969 1971 1973 1975 1977 1979 1981 1983 1985 1987 1989 1991 1993 1995 1997 1999 2001 2003 2005 2007 2009 9,000,000 9,000,000 8,000,000 8,000,000 7,000,000 7,000,000 6,000,000 Total Volume of Water Flow<strong>in</strong>g Down the Ass<strong>in</strong>ibo<strong>in</strong>e River Total Volume Between of April Water <strong>and</strong> July Flow<strong>in</strong>g AnnuallyDown the Ass<strong>in</strong>ibo<strong>in</strong>e River Between April <strong>and</strong> July 2011: 8.3 M ac-ft ac-ft 6,000,000 5,000,000 5,000,000 4,000,000 4,000,000 3,000,000 3,000,000 2,000,000 2,000,000 1,000,000 1,000,000 1976 1995 - -