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Enviro-Test, Limited <br />Denver, Colorado <br />Sam Geer <br />Work Performed: Water Quality Analysis <br />Date Performed: 1980 <br />Date Analyzed: 1980 and continuing <br />Methodology: Use ASTM standards to analyze water samples from monthly and quarterly <br />monitoring at the mine. <br />Amuedo and Ivey <br />Denver, Colorado <br />John Ivey <br />Work Performed: Surface and Base Geology <br />Date Performed: September 1979 <br />Date Analyzed: September and October 1979 <br />Methodology: Use aerial photography and field reconnaissance to develop surface and subsurface <br /> geology for baseline information. <br />Leonard Rice Consul[ine Water Engineers, Inc. <br />Denver, Colorado <br />Lee Rice <br />Work Performed: Surface and Ground Water Hydrology <br />Date Performed: September, October, 1979 and December 1980 <br />Date Analyzed: September, October, 1979 and December 1980 <br />Methodology: Used available surface and ground water data combined with geology for <br />extrapolation of surface and ground water character. <br />CTL/Thompson, Inc. <br />Denver, Colorado <br />Bob Thompson <br />Work Performed: Refuse and Road Designs <br />Date Performed: September, October, 1979 and December 1980 <br />Date Analyzed: October 1979 and December, 1980 <br />Methodology: Used standard professional engineering analysis to design stability and <br />construction criteria for refuse pile and roads. <br />Permit Revision 04-34 2.03-6 Revised 7/2/04 <br />