05345100 - SOUTH BRANCH VERMILLION RIVER AT EMPIRE, MN Streamflow potentially affected by regulation1 - No Location.-- latitude 44o39'33" longtitude 93o00'28" Measure number Date Time Discharge, in ft^3;/s Base Flow2 1 1980-01-31 10:25 7.6 Not Determined 2 1980-02-26 09:55 8.88 Not Determined 3 1980-03-16 14:06 93.0 Not Determined 4 1980-03-18 12:!5 113 No 5 1980-03-19 10:50 206 No 6 1980-03-20 11:43 147 No 7 1980-03-21 11:35 65.1 No 8 1980-03-24 11:00 15.8 Yes 9 1980-04-15 18:00 20.4 Not Determined 10 1980-04-30 09:35 11.9 Yes 11 1980-05-15 16:00 10.4 Yes 12 1980-06-02 16:24 11.4 Yes 13 1980-06-06 13:21 75.2 No 14 1980-09-15 12:13 15.1 Not Determined 15 1990-01-31 12:45 5.9 Yes 16 1990-03-11 13:18 191 No 17 1990-03-15 12:50 50.8 Not Determined 18 1990-04-11 13:53 7.5 Not Determined 19 1990-05-16 14:32 31.8 Not Determined 20 1990-06-15 10:05 37.4 Not Determined 21 1990-07-17 14:02 10.7 Not Determined 22 1990-09-13 12:16 6.62 Yes 23 1990-12-05 12:03 7.6 Not Determined 24 1991-02-05 10:10 8.7 Not Determined 25 1991-05-17 10:05 14.8 Not Determined 26 1995-09-14 10:50 9.84 Not Determined 27 2000-04-12 13:20 13.1 Not Determined 28 2008-09-23 14:38 7.6 Yes 29 2008-11-03 09:31 7.9 Yes 30 2011-10-07 10:31 13.6 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.