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Peak Streamflow for Illinois

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USGS 05568000 MACKINAW RIVER NEAR GREEN VALLEY, IL

Tazewell County, Illinois
Hydrologic Unit Code 07130004
Latitude  40°27'16.8", Longitude  89°36'22.2" NAD83
Drainage area 1,073  square miles
Gage datum 476.67 feet above NAVD88
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Tab-separated file
peakfq (watstore) format
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Water
Year		 Date Gage
Height
(feet)		 Stream-
flow
(cfs)
1922 1922-04-02 12.11 6,690
1923 1923-03-13 10.60 4,800
1924 1924-08-22 15.54 19,300
1925 1925-02-09 9.65 3,800
1926 1926-09-05 12.58 8,120
1927 1927-05-19 16.80 24,300
1928 1927-12-13 10.90 5,070
1929 1929-07-06 13.19 10,200
1930 1930-02-25 9.57 3,750
1931 1931-09-15 8.88 3,050
1932 1931-11-23 9.32 3,450
1933 1933-05-12 14.02 19,700
1934 1933-10-22 8.99 3,370
1935 1935-05-11 12.42 9,470
1936 1936-02-27 13.85 17,900
1937 1937-02-21 9.99 4,570
1938 1938-06-26 10.70 5,680
1939 1939-04-18 10.71 5,760
1940 1940-03-05 7.55 2,420
1941 1941-06-14 8.29 3,280
1942 1942-02-08 13.52 14,000
1943 1943-05-19 14.23 18,200
1944 1944-04-24 14.50 26,400
1945 1945-05-17 9.86 5,400
1946 1946-06-21 13.50 17,800
1947 1947-05-01 13.32 15,600
1948 1948-07-27 9.27 4,800
1949 1949-06-15 8.96 4,400
1950 1950-04-25 12.41 12,600
1951 1951-07-10 15.12 31,000
1952 1952-04-15 10.38 6,700
1953 1953-07-07 8.62 4,990
1954 1954-05-30 8.39 4,790
1955 1955-02-20 8.48 5,020
1956 1956-05-27 9.00 5,520
1957 1957-04-30 11.60 9,280
1958 1958-06-14 9.39 5,950
1960 1960-03-31 11.66 9,550
1961 1961-09-27 11.14 8,200
1962 1962-03-12 11.27 8,520
1963 1963-03-08 8.81 5,330
1964 1964-04-23 9.20 5,730
1965 1965-04-06 11.02 8,050
1966 1965-12-25 10.02 6,670
1967 1967-05-12 8.08 4,620
1968 1968-06-27 11.20 8,360
1969 1969-01-22 11.402 8,780
1970 1970-09-22 10.28 7,000
1971 1971-07-09 7.97 4,520
1972 1972-09-14 9.15 5,680
1973 1973-04-21 14.94 29,700
1974 1974-06-05 10.93 7,910
1975 1975-02-24 9.91 6,540
1976 1976-03-06 11.46 8,900
1977 1977-09-16 10.59 6,970
1978 1978-03-29 8.64 4,730
1979 1979-03-05 14.15 23,400
1980 1980-06-03 15.98 46,700
1981 1981-08-16 12.70 13,800
1982 1982-03-12   20,0002
1983 1982-12-06 16.13 51,000
1984 1984-05-21   8,9402
1985 1985-02-25 13.42 18,400
1986 1985-11-21 13.52 19,200
1987 1986-10-04 14.01 23,400
1988 1988 10.474,Bm 7,8204,Bm
1989 1989-05-28 16.56 1,830
1990 1990-03-13 26.53 12,200
1991 1990-11-30 24.38 8,490
1992 1992-07-30 24.45 9,090
1993 1993-09-16 28.29 16,0002
1994 1993-10-20 23.84 7,040
1995 1995-05-26 26.83 12,600
1996 1996-05-29 24.41 8,030
1997 1997-02-28 23.21 6,590
1998 1998-05-11 25.97 10,800
1999 1999-05-17 26.55 12,000
2000 2000-05-27 18.83 2,900
2001 2001-02-09 24.26 7,800
2002 2002-05-14 27.62 14,400
2003 2003-07-10 25.10 9,180
2004 2004-06-01 22.25 5,600
2005 2005-01-16 28.44 16,400
2006 2006-04-19 20.06 3,940
2007 2007-03-26 25.80 10,500
2008 2008-09-17 27.94 15,100
2009 2009-05-16 25.83 10,600
2010 2009-11-03 26.45 11,800
2011 2011-04-23 22.96 6,760
2012 2011-12-15 17.58 2,210
2013 2013-04-20 28.48 18,900
2014 2014-02-22 24.82 9,210
2015 2015-07-12 27.14 13,200
2016 2015-12-31 29.18 23,700
2017 2017-05-01 24.20 8,910
2018 2018-06-12 21.92 6,330
2019 2019-05-04 28.19 17,500
2020 2020-05-21 25.98 11,300
2021 2021-06-29 22.46 6,960
2022 2021-10-25 23.90 8,640
2023 2023-03-25 20.11 4,530
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  Peak Gage-Height Qualification Codes.
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  Peak Streamflow Qualification Codes.