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WHIRLWIND MINE <br />Atmospheric Consumption <br /> <br /> <br /> <br />onth/Year <br />Year 1 Total <br />November 2008 Air <br />Circulation <br />Rate <br />cfm <br /> <br />41,000 <br />Hours of <br />Operation <br />hours <br /> <br />171 Increased <br />Water <br />Content' <br />(lb/ft) <br /> <br />0.0002 <br />Monthly <br />Water Usage' <br />al <br />99,389 <br />10,136 <br />December 2008 5,700 32 0.0002 264 <br />January 2009 11,400 21 0.0002 346 <br />February 2009 11,400 33 0.0002 544 <br />March 2009 11,400 43 0.0002 709 <br />April 2009 11,400 28 0.0002 461 <br />May 2009 11,400 49 0.0002 808 <br />June 2009 14,725 30 0.0002 639 <br />Jul 2009 3,130 17 0.0002 77 <br />August 2009 2,420 77 0.0002 269 <br />September 2009 2,420 46 0.0002 161 <br />October 2009 <br />Year 2 Total 2,420 36 0.0002 126 <br />14,540 <br />1 - Based on an estimated average increase of 30% water saturation level at 7,000-foot elevation.