05316970 - COTTONWOOD RIVER AT LEAVENWORTH, MN Streamflow potentially affected by regulation1 - No Location.-- latitude 44o13'39" longtitude 94o48'22" Measure number Date Time Discharge, in ft^3;/s Base Flow2 1 1965-11-03 Not Available 64.4 No 2 1966-06-23 Not Available 39.6 No 3 1966-07-21 Not Available 11.4 No 4 1966-09-16 Not Available 13.2 No 5 1966-10-13 Not Available 5.36 Yes 6 1967-05-11 Not Available 122.0 No 7 1967-06-29 Not Available 350.0 No 8 1967-07-20 Not Available 64.5 Yes 9 1967-08-16 Not Available 8.35 Yes 10 1967-09-11 Not Available 5.66 Yes 11 1967-10-11 Not Available 5.82 No 12 1968-04-08 Not Available 48.6 No 13 1968-05-09 Not Available 31.4 No 14 1968-07-09 Not Available 8.51 No 15 1968-08-16 Not Available 162.0 No 16 1968-09-20 Not Available 131.0 No 17 1968-10-31 Not Available 970.0 No 18 1969-09-24 Not Available 18.8 No 19 1970-06-24 Not Available 270.0 No 20 1973-08-29 Not Available 3.64 Yes 21 1974-08-29 Not Available 2.83 Yes 22 1975-09-29 Not Available 3.65 Yes 23 1976-08-19 Not Available 0.15 Yes 24 1996-09-12 15:50 62.5 Yes 25 1997-04-01 8:56 4120.0 No 26 1997-04-02 13:34 3540.0 No 27 1997-04-14 16:07 1660.0 No 28 1997-04-22 14:00 966.0 No 29 1997-04-30 13:45 679.0 No 30 1997-06-03 13:45 357.0 No 31 1997-08-15 10:45 322.0 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.