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Peak Streamflow for Texas

USGS 08136000 Concho Rv at San Angelo, TX

Tom Green County, Texas
Hydrologic Unit Code 12090105
Latitude  3127'16", Longitude 10024'37" NAD27
Drainage area 5,542  square miles
Contributing drainage area 4,411  square miles
Gage datum 1,776.79 feet above sea level NGVD29
Water
Year
Date Gage
Height
(feet)
Stream-
flow
(cfs)
1906 unknown 1906 47.50 246,0007
1916 Sep. 1, 1916 13.00 9,700
1917 Apr. 18, 1917 13.70 10,600
1918 May 17, 1918 13.80 10,700
1919 Jul. 8, 1919 26.60 31,800
1920 Oct. 6, 1919 18.52 17,100
1921 Aug. 31, 1921 14.70 11,900
1922 Apr. 26, 1922 36.80 92,000
1923 Aug. 23, 1923 9.60 5,800
1924 Apr. 25, 1924 28.10 36,300
1925 May 31, 1925 31.20 49,200
1926 Apr. 21, 1926 27.68 35,100
1927 Oct. 15, 1926 6.37 2,730
1928 Oct. 1, 1927 23.35 25,400
1929 Sep. 6, 1929 9.70 6,000
1930 Jun. 13, 1930 29.30 40,200
1931 Oct. 13, 1930 32.65 57,6006
1932 May 10, 1932 29.90 42,6006
1933 Dec. 24, 1932 2.36 2866
1934 Apr. 5, 1934 12.85 9,5106
1935 May 15, 1935 29.00 39,0006
1936 Sep. 17, 1936 46.60 230,0006
1937 Jun. 2, 1937 21.22 23,4006
1938 Jul. 23, 1938 35.90 85,1006
1939 May 4, 1939 18.94 19,1006
1940 Jun. 29, 1940 26.05 34,4006
1941 Jun. 5, 1941 24.13 27,6006
1942 Aug. 23, 1942 30.88 51,5006
1943 May 23, 1943 8.57 5,5606
1944 Sep. 6, 1944 13.97 12,2006
1945 Jul. 6, 1945 19.62 20,0006
1946 Sep. 26, 1946 31.76 56,0006
1947 May 11, 1947 15.59 15,0006
1948 Jul. 6, 1948 30.00 47,5006
1949 Apr. 24, 1949 21.74 25,1006
1950 Oct. 24, 1949 16.08 15,7006
1951 Aug. 12, 1951 7.71 4,7406
1952 May 1, 1952 1.99 1746
1953 Aug. 20, 1953 14.09 12,8006
1954 Oct. 4, 1953 15.55 14,6006
1955 Jul. 18, 1955 23.90 25,5006
1956 Apr. 30, 1956 8.04 3,8006
1957 May 9, 1957 39.80 106,0006
Water
Year
Date Gage
Height
(feet)
Stream-
flow
(cfs)
1958 Oct. 13, 1957 19.06 19,6006
1959 Sep. 30, 1959 18.35 17,7006
1960 Oct. 3, 1959 40.70 122,0006
1961 Jun. 18, 1961 14.41 12,1006
1962 Oct. 9, 1961 15.47 13,6006
1963 Oct. 19, 1962 3.02 3166
1964 May 28, 1964 5.60 2,0606
1965 May 14, 1965 3.81 7486
1966 Aug. 31, 1966 5.85 1,0206
1967 Sep. 15, 1967 4.11 9206
1968 May 9, 1968 3.82 7026
1969 Sep. 9, 1969 3.43 5056
1970 Oct. 12, 1969 3.90 7806
1971 Aug. 13, 1971 5.23 1,7806
1972 May 13, 1972 3.92 7946
1973 Sep. 6, 1973 4.65 1,3006
1974 May 25, 1974 4.63 1,2906
1975 Oct. 30, 1974 8.00 3,7006
1976 Apr. 11, 1976 5.29 1,5806
1977 May 15, 1977 6.88 2,7206
1978 Aug. 3, 1978 5.19 1,5206
1979 Apr. 21, 1979 3.25 4146
1980 Sep. 9, 1980 14.37 11,5006
1981 May 30, 1981 4.69 1,2006
1982 Oct. 13, 1981 8.65 4,3206
1983 Jul. 5, 1983 4.49 1,0806
1984 Sep. 26, 1984 3.89 7406
1985 Sep. 29, 1985 4.17 8986
1986 Sep. 2, 1986   3,8706
1987 May 31, 1987 10.50 6,3206
1988 May 13, 1988 4.93 1,3506
1989 Mar. 3, 1989 4.07 8426
1990 Sep. 16, 1990 7.05 2,8606
1991 Jun. 3, 1991 4.30 9706
1992 Apr. 16, 1992 8.20 3,8906
1993 Jun. 17, 1993 4.10 8606
1994 Sep. 8, 1994 9.26 4,9506
1995 May 28, 1995 8.81 4,4906
1996 Jun. 2, 1996 3.31 4426
1997 Oct. 28, 1996 4.95 1,3706
1998 May 27, 1998 3.91 7516
1999 Jun. 6, 1999 7.95 3,6606
2000 Jun. 18, 2000 2.97 2996
2001 Sep. 19, 2001 4.47 1,0706
Peak Streamflow Qualification Codes.
  • 6 -- Discharge affected by Regulation or Diversion
  • 7 -- Discharge is an Historic Peak