06603530 - LITTLE SIOUX RIVER NEAR SPAFFORD, MN Streamflow potentially affected by regulation1 - No Location.-- latitude 43o36'08" longtitude 95o15'27" Measure number Date Time Discharge, in ft^3;/s Base Flow2 1 1961-10-11 Not Available 0.31 Yes 2 1962-03-29 18:10 597.0 No 3 1962-03-30 8:50 290.0 No 4 1962-04-13 Not Available 48.4 Not Determined 5 1962-06-20 Not Available 39.2 Not Determined 6 1962-07-05 Not Available 90.1 Not Determined 7 1963-08-02 Not Available 36.4 Not Determined 8 1964-05-12 Not Available 45.0 Not Determined 9 1964-06-05 Not Available 4.98 Not Determined 10 1964-09-09 Not Available 4.26 Not Determined 11 1964-09-10 Not Available 13.5 Not Determined 12 1965-05-04 Not Available 24.6 Not Determined 13 1965-06-02 Not Available 27.4 Not Determined 14 1966-03-17 Not Available 9.8 Not Determined 15 1966-06-22 Not Available 3.11 Not Determined 16 1967-03-24 Not Available 7.65 Not Determined 17 1967-04-05 Not Available 25.9 Not Determined 18 1967-06-27 Not Available 21.6 Not Determined 19 1968-10-30 Not Available 25.7 Not Determined 20 1968-11-24 Not Available 15.2 Not Determined 21 1969-04-04 15:50 407.0 No 22 1969-04-06 18:45 1640.0 No 23 1969-04-07 9:05 1210.0 No 24 1969-04-09 11:55 527.0 No 25 1969-04-23 Not Available 38.2 Not Determined 26 1969-05-20 Not Available 15.6 Not Determined 27 1969-06-29 Not Available 4500.0 No 28 1969-07-11 Not Available 159.0 No 29 1969-07-29 Not Available 10.4 Not Determined 30 1971-06-22 Not Available 54.7 Not Determined 31 1972-10-12 Not Available 0.27 Yes 31A 1972-10-12 Not Available 0.27 Not Determined 32 1973-03-12 Not Available 55.4 Not Determined 33 1973-05-23 Not Available 4.72 Not Determined 33A 1973-08-31 Not Available 0.0 Yes 34 1974-07-24 Not Available 0.02 Yes 35 1975-07-02 18:40 17.8 Not Determined 36 1977-10-01 9:37 165.0 No 37 1979-03-22 9:30 130.0 No 38 1979-09-18 7:45 51.2 Not Determined 39 1983-02-23 8:10 90.1 No 40 1983-03-04 8:40 109.0 No 41 1984-03-29 15:45 236.0 No 42 1984-06-20 13:15 230.0 No 43 1990-06-07 8:30 27.4 Not Determined 44 1990-06-19 13:15 423.0 No 45 1991-04-17 12:45 105.0 No 46 1991-06-04 17:25 519.0 No 47 1992-03-02 17:47 105.0 No 48 1992-07-03 12:10 141.0 No 49 1993-03-28 12:45 504.0 No 50 1993-07-01 10:45 371.0 No 51 1999-04-07 13:32 35.1 Not Determined 52 1999-09-22 17:41 0.0 Yes 53 2001-04-18 18:50 59.4 Not Determined 54 2003-05-27 15:50 29.6 No 55 2004-08-03 18:13 49.4 Not Determined 56 2005-09-26 18:58 562.0 No Notes: 1 Regulation includes human influences on streamflow from causes such as hydropower, reservoirs, water supplies, or wastewater discharges. 2 Base flow is defined as a period of at least 10-14 days without precipitation that produces detectable runoff.