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West Elk Mine 2012 Annual Hydrology Report <br />The mean annual flow in Minnesota Creek near Paonia in WY 2012 was 8.69 cfs, <br />corresponding to about 40% of the historical mean annual flow (21.9 cfs) over the period <br />of record (USGS, 2013d). The maximum peak flow in Minnesota Creek in WY 2012 <br />was 42 cfs on May 6, 2012 compared to the maximum peak flow for the period of record, <br />359 cfs on May 28, 1993 (USGS, 2013d). Natural stream flow in Minnesota Creek can <br />be affected by two small storage reservoirs, small trans -basin diversions from Coal Creek <br />into Minnesota Creek, and diversions upstream from the station for the irrigation of about <br />100 acres (USGS, 2013d). <br />June 2013 HydroGeo, Inc. <br />