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WHIRLWIND MINE <br />Dewatering Use <br /> <br /> <br /> <br /> <br />ontlUYear - <br />Volume <br />Dewatered and <br />Treated <br />(gal). _ <br /> <br />Evaporation <br />rate <br />(in) s ima e <br />Evaporation <br />from Untreated <br />Water Tank (') <br />(gal) <br /> <br /> <br />otal <br />(gal) <br />Year 1 Total 1,621,326 57.45 160,947 1,782,273 <br />Year 2 Total 1,025,699 57.45 165,588 1,191,287 <br />November 2009 0 1.61 4,640 4,640 <br />December 2009 105,138 1.26 3,632 108,770 <br />January 2010 0 0 - " <br />February 2010 0 0 - - <br />March 2010 0 0 - - <br />April 2010 0 0 - - <br />May 2010 0 0 - - <br />June 2010 0 0 - - <br />Jul 2010 0 0 - - <br />August 2010 0 0 - - <br />September 2010 0 0 - - <br />October 2010 0 0 - - <br />Year 3 Total 105,138 2.87 8,272 113,410 <br />Total <br />Annual Average 2,752,163 <br />917,388 118 <br />39 334,807 <br />111,602 3,086,970 <br />1,028,990 <br />1 - Estimated evaporation rates based on average monthly pan evaporation data reported for <br />Montrose, Colorado by Western Regional Climate Center (wrcc.dri.edu)