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Peak Streamflow for Texas

USGS 08172000 San Marcos Rv at Luling, TX

Caldwell County, Texas
Hydrologic Unit Code 12100203
Latitude  29°39'58", Longitude  97°39'02" NAD27
Drainage area 838  square miles
Contributing drainage area 838  square miles
Gage datum 322.05 feet above sea level NGVD29
Water
Year		 Date Gage
Height
(feet)		 Stream-
flow
(cfs)
1940 Jun. 30, 1940 32.81 28,800
1941 Nov. 22, 1940 30.00 15,300
1942 Jul. 5, 1942 32.93 29,500
1943 Oct. 18, 1942 22.83 5,190
1944 May 28, 1944 26.52 7,120
1945 Mar. 30, 1945 27.97 9,480
1946 Mar. 13, 1946 25.61 6,160
1947 Nov. 4, 1946 28.46 10,600
1948 May 12, 1948 10.00 1,170
1949 Apr. 25, 1949 29.43 12,500
1950 Oct. 22, 1949 30.70 17,200
1951 Jun. 4, 1951 28.58 10,200
1952 Sep. 12, 1952 34.95 57,000
1953 Apr. 29, 1953 32.42 27,000
1954 May 12, 1954 24.69 5,350
1955 May 19, 1955 21.73 4,020
1956 May 15, 1956 18.08 2,670
1957 Apr. 25, 1957 32.70 29,400
1958 May 3, 1958 33.87 41,400
1959 Apr. 12, 1959 26.82 7,490
1960 Jun. 25, 1960 33.56 37,900
1961 Oct. 29, 1960 33.30 34,800
1962 Nov. 13, 1961 23.05 4,3005
1963 Oct. 29, 1962 14.42 1,8305
1964 Nov. 8, 1963 13.79 1,7105
1965 May 19, 1965 29.12 10,6005
1966 Dec. 3, 1965 27.64 7,9805
1967 Sep. 22, 1967 27.36 7,6705
1968 Jan. 21, 1968 31.42 24,8005
1969 Dec. 0, 1968 23.60 4,6005
1970 May 16, 1970 33.11 32,4005
Water
Year		 Date Gage
Height
(feet)		 Stream-
flow
(cfs)
1971 Oct. 23, 1970 18.83 2,9105
1972 May 12, 1972 34.11 44,1005
1973 Jun. 13, 1973 27.42 7,7505
1974 Oct. 16, 1973 29.71 12,3005
1975 May 24, 1975 33.90 41,4005
1976 May 7, 1976 30.31 14,3005
1977 Apr. 20, 1977 30.83 16,5005
1978 Jun. 7, 1978 15.39 2,0205
1979 Apr. 19, 1979 24.11 5,5105
1980 Sep. 7, 1980 25.89 6,4605
1981 Jun. 14, 1981 34.82 54,8005
1982 Oct. 31, 1981 28.34 9,1205
1983 Jun. 17, 1983 22.20 4,6705
1984 Nov. 6, 1983 7.06 6806
1985 Jun. 7, 1985 31.47 27,4006
1986 Nov. 24, 1985 31.24 18,0006
1987 Jun. 4, 1987 31.41 27,0006
1988 Nov. 26, 1987 25.73 7,1606
1989 May 18, 1989 17.00 3,0106
1990 May 4, 1990 17.84 3,2506
1991 Jan. 18, 1991 29.04 12,6006
1992 Dec. 22, 1991 33.65 39,5006
1993 May 6, 1993 20.45 4,8206
1994 May 15, 1994 16.09 3,1606
1995 May 31, 1995 27.12 8,9706
1996 Aug. 26, 1996 9.98 1,4006
1997 Jun. 23, 1997 32.65 25,2006
1998 Mar. 17, 1998 25.33 7,4006
1999 Oct. 18, 1998 41.85 206,0006
2000 Jun. 11, 2000 10.42 1,0906
2001 Nov. 4, 2000 26.67 8,5406
Peak Streamflow Qualification Codes.
  • 5 -- Discharge affected to unknown degree by Regulation or Diversion
  • 6 -- Discharge affected by Regulation or Diversion