05373150 - MIDDLE FORK ZUMBRO RIVER NEAR ORONOCO, MN Streamflow potentially affected by regulation1 - No Location.-- latitude 44o10'10" longtitude 92o34'24" Measure number Date Time Discharge, in ft^3;/s Base Flow2 1 1969-09-23 10:05 19.3 Yes 2 1970-06-05 12:35 153.0 Yes 3 1971-08-11 Not Available 32.6 Not Determined 4 1974-09-25 9:37 30.5 Yes 5 1976-09-30 15:00 10.2 Yes 6 1977-09-19 15:40 7.12 Yes 7 1985-08-02 13:07 25.0 Not Determined 8 1988-06-24 14:05 23.0 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.