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Battle Mountain Resources, Inc. <br />' 06 July 1993 <br />Page 1 <br />1 <br />EBECIITIOE SIIMMARY <br />' The Battle Mountain Gold Company (BMGC) is located northeast <br />of San Luis, Colorado in southcentral Colorado. An assess- <br />ment of the geotechnical properties of tailings located <br />' within a tailings impoundment on BMGC property was conducted. <br />The behavior of the tailings closely resembled unconsolidated <br />deposits of sandy silts to clayey silts and isolated silty <br />sands and sands as a result of BMGC's milling process, <br />' Solution fluids represented only degrees of saturation and a <br />water table condition was not apparent. <br />As a result of the investigation, various geotechnical <br />parameters were evaluated. Coefficients of consolidation <br />ranged between 0.00909 and 0.12720 cm2/sec, tailings compres- <br />' sibility ranged between 0.00850 and 0.08950 cm/lag2, and <br />coefficients of permeability ranged from 4.21 E-07 to 7.24 <br />E-06 cm/sec. <br />Due to the low coefficients of permeability, solution <br />sampling was not achieved within a reasonable amount of time <br />' and the activity was abandoned. <br />1 <br /> <br /> <br /> <br />1 <br />1 <br /> <br />1 <br />' TERRA TECHNOLOGIES -SOUTHWEST, INC. <br />