05204400 - BOY RIVER AT LONGVILLE, MN Streamflow potentially affected by regulation1 - No Location.-- latitude 46o59'00" longtitude 94o12'33" Measure number Date Time Discharge, in ft^3;/s Base Flow2 1 1953-08-12 Not Available 101.0 Not Determined 2 1953-09-16 Not Available 78.9 Not Determined 3 1954-04-14 Not Available 79.6 Not Determined 4 1964-06-05 Not Available 43.4 Not Determined 5 1964-07-29 Not Available 33.6 No 6 1964-10-16 Not Available 24.1 Not Determined 7 1965-05-19 Not Available 68.6 No 8 1965-08-03 Not Available 58.9 Not Determined 9 1970-08-05 Not Available 21.2 Not Determined 10 1971-08-09 10:00 36.9 Not Determined 11 1973-08-28 Not Available 47.8 Not Determined 12 1975-08-11 13:25 52.8 No 13 1976-05-24 10:55 32.1 No 14 1976-08-03 13:40 17.5 No 15 1976-09-02 12:05 1.85 Yes 16 1980-05-14 12:00 31.6 No 17 1987-06-17 11:05 46.1 No 18 1988-06-01 14:25 23.8 Not Determined 19 1988-07-07 10:00 6.48 Yes 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.