05131900 - CALDWELL BROOK AT CALDWELL ROAD NEAR EFFIE, MN Streamflow potentially affected by regulation1 - No Location.-- latitude 47o57'15" longtitude 93o52'54" Measure number Date Time Discharge, in ft^3;/s Base Flow2 1 1969-09-10 Not Available 5.72 Not Determined 2 1970-07-28 Not Available 1.5 Not Determined 3 1970-08-12 Not Available 1.17 Not Determined 4 1970-09-30 Not Available 2.03 Not Determined 5 1971-08-04 14:45 12.4 Not Determined 6 1971-09-14 9:55 1.57 Not Determined 7 1972-06-07 9:55 5.13 Not Determined 8 1972-08-31 10:25 2.34 Not Determined 9 1975-08-14 12:00 2.16 Not Determined 10 1976-06-02 12:30 1.95 Not Determined 11 1976-08-19 10:15 0.44 Yes 12 1976-09-15 10:05 0.12 Yes 13 1980-05-13 9:50 16.2 Not Determined 14 1988-07-19 12:00 0.12 Yes 15 1990-09-26 Not Available 0.35 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.