05336990 - SOUTH BRANCH GRINDSTONE RIVER NEAR HINCKLEY, MN Streamflow potentially affected by regulation1 - No Location.-- latitude 46o01'28" longtitude 92o58'16" Measure number Date Time Discharge, in ft^3;/s Base Flow2 1 1967-09-07 7:15 0.23 Not Determined 2 1970-05-19 15:05 7.02 Yes 3 1974-09-18 7:30 2.62 Yes 4 1975-10-02 Not Available 0.87 Yes 5 1976-09-15 9:10 0.007 Not Determined 6 1980-05-19 15:55 4.03 Not Determined 7 2006-07-13 10:39 0.97 Yes 8 2006-09-08 09:31 0.54 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.