05220670 - WILLOW RIVER NEAR HILL CITY, MN Streamflow potentially affected by regulation1 - No Location.-- latitude 46o54'00" longtitude 93o36'50" Measure number Date Time Discharge, in ft^3;/s Base Flow2 1 1964-06-06 Not Available 81.4 Yes 2 1964-07-29 Not Available 39.2 Yes 3 1964-11-05 Not Available 50.4 Yes 4 1965-06-04 Not Available 625.0 No 5 1965-08-25 Not Available 46.7 Yes 6 1970-08-10 Not Available 13.5 No 7 1971-08-09 9:40 43.8 Not Determined 8 1973-08-29 Not Available 41.3 No 9 1974-07-09 11:10 104.0 No 10 1975-08-18 12:30 72.6 No 11 1976-06-02 12:35 27.0 No 12 1976-08-02 12:50 23.9 No 13 1976-09-02 10:30 13.1 No 14 1980-05-09 7:50 98.9 No 15 1987-06-18 9:20 78.2 No 16 1988-06-01 11:55 55.5 Not Determined 17 1988-07-06 8:00 20.8 Not Determined 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.