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File: Elk_River.rpt, Page: 2
<br /> --- End of Preliminary Results---
<br /> << Low Outlier Test>>
<br /> Based on 80 events, 10 percent outlier test deviate K(N)=2.94
<br /> Computed low outlier test value= 181.1086
<br /> 2 low outlier(s) identified below test value of 181.1086
<br /> Statistics and frequency curve adjusted for 2 low outlier(s)
<br /> << Systematic Statistics>>
<br /> Peak Flows
<br /> Log Transform: I I
<br /> FLOW, CFS I Number of Events I
<br /> I I
<br /> Mean 3.222 I Historic Events 0 I
<br /> Standard Dev 0.280 I High Outliers 0 I
<br /> Station Skew -0.298 I Low Outliers 2 I
<br /> Regional Skew --- I Zero Events 0 I
<br /> Weighted Skew --- I Missing Events 0 I
<br /> Adopted Skew -0.796 I Systematic Events 80 I
<br /> I I
<br /> << High Outlier Test>>
<br /> Based on 78 events, 10 percent outlier test deviate K(N)=2.931
<br /> Computed high outlier test value= 10,999.1013
<br /> 0 high outlier(s)identified above test value of 10,999.1013
<br /> Note: Statistics and frequency curve were modified
<br /> using conditional probablity adjustment.
<br /> --- Final Results---
<br /> << Plotting Positions>>
<br /> Peak Flows
<br /> Events Analyzed I Ordered Events
<br /> FLOW I Water FLOW Median I
<br /> Day Mon Year CFS I Rank Year CFS Plot Pos I
<br /> I I
<br /> 10 Apr 1932 436.000 I 1 1965 7,360.000 0.87 I
<br /> 30 May 1933 178.000 I 2 1969 5,980.000 2.11 I
<br /> 25 Sep 1934 144.000 I 3 1952 5,330.000 3.36 I
<br /> 20 Mar 1935 690.000 I 4 1984 4,980.000 4.60 I
<br /> 28 Mar 1936 2,000.000 I 5 2001 4,490.000 5.85 I
<br /> 12 Apr 1937 1,160.000 I 6 1997 4,070.000 7.09 I
<br /> 11 May 1938 2,740.000 1 7 1943 3,500.000 8.33 I
<br /> 27 Mar 1939 2,920.000 I 8 1951 3,280.000 9.58 I
<br /> 09 Apr 1940 1,240.000 I 9 -1945 3,150.000 10.82 1
<br /> 08 Apr 1941 1,450.000 I 10 1954 3,120.000 12.06 1
<br /> 18 May 1942 1,560.000 1 11 1956 3,100.000 13.31 I
<br /> 03 Apr 1943 3,500.000 I 12 1986 2,990.000 14.55 I
<br /> 07 May 1944 1,740.000 1 13 1939 2,920.000 15.80 I
<br /> 19 Mar 1945 3,150.000 I 14 1975 2,910.000 17.04 I
<br /> 21 Mar 1946 1,960.000 I 15 2009 2,810.000 18.28 I
<br /> 15 Apr 1947 950.000 1 16 1948 2,800.000 19.53 I
<br /> 29 Mar 1948 2,800.000 I 17 1983 2,750.000 20.77 I
<br /> 31 Mar 1949 1,750.000 I 18 1979 2,740.000 22.01 I
<br /> 08 May 1950 2,730.000 1 19 1938 2,740.000 23.26 I
<br /> 10 Apr 1951 3,280.000 I 20 1950 2,730.000 24.50 I
<br /> 09 Apr 1952 5,330.000 I 21 1967 2,630.000 25.75 I
<br /> 26 Mar 1953 1,320.000 I 22 1985 2,520.000 26.99 I
<br /> 30 Apr 1954 3,120.000 I 23 1957 2,500.000 28.23 I
<br /> 05 Apr 1955 1,470.000 I 24 1973 2,440.000 29.48 I
<br /> 209
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