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Draft West Elk Mine 2005 Annual Hydrology Report S <br />• Figure 6. Stream Flow Data for the North Fork of the Gunnison River <br /> North Fork of the Gunnison <br /> 3000 <br /> 2500 - - - - - - <br /> <br />~. 2000 - - - - - <br />-~Aeerage Flow <br />~ 1500 -- - - <br />- -- WYs 1934-2004 <br />E -+a-Aw;rage Flow <br /> 1000 - - - - - - - - WY 2005 <br />.~ <br />N 500 <br /> 0 <br /> ~0e~ Ja~ <br />~~or PQC\ ~~~ ~JCe ~J~ <br />c~` <br />Ja ~ <br />AJye <br />~Oec <br />`~~ <br /> ` <br />~. <br />ec <br />oti4 <br />J <br />F <br />F <br />ar <br />p <br />~ <br />~ ~ <br />° P <br /> ~o ~ <br />eQ <br />F <br />5 <br />Flows in Minnesota Creek in WY 2005 were also above the annual historical averages from 1937 <br />through 1947 and 1985 through 2004. Average monthly flows for WY 2005, compared to <br />historical data, ranged from 81 percent in December 2005 to 167 percent in July 2005. The <br />• average daily flow for the year for WY 2005 was 132 percent (28.6 cfs) of the historical daily <br />average for the years 1937 through 2004 (22 cfs) (USGS, 2005a). The peak flow in Minnesota <br />Creek was 273 cfs on May 24, 2005 (USGS, 200Sb). A summary of the stream flow data for <br />Minnesota Creek is graphically presented in Figure 7. <br /> <br />Figure 7. Stream Flow Data for Minnesota Creek <br />Minnesota Creek <br />140 <br />120 - - <br />~ 100 - - <br />+Aeerage Flow WYs <br />c 80 - - - - 19377,1986-2004 <br />m 60 - - - -a-Aoerage Flow WY <br />40 - --- - - 2005 <br />in - -- <br />20 - - - - - <br />0 <br />a'~O~e~e~~e`~~~a~`°~ ~`°as~`~~°r PQO\ ~~~ )°ce So`~~°'Jee~~e` <br />O ~o ~~ ~ ke P~OQ~ <br />September 2006 HydroCeo, Inc. <br />