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3.0 RESULTS <br />LISLE CALCULATIONS <br />Table A. summarizes the derivation of site specific USLE factors (factors K, LS, <br />and C) for each sampled location within the reclaimed areas as well as the adjacent <br />undisturbed extended reference area. <br />The projected mean sediment yield from the reclaimed areas (Table B) is 0.352 <br />tons/acre/year (with individual reclaimed areas ranging from 0.055 to 1.604 <br />tons/acre/year). Projected sediment yield from adjacent undisturbed extended <br />reference area (Table C) is 2.175 tons/acre/year (individual areas ranging from <br />0.043 to 13.695 tons/acre/year). <br />4.0 CONCLUSIONS <br />The results of the USLE calculations show that the reclaimed areas are projected to <br />produce less sediment than the adjacent native undisturbed areas. The equation <br />verifies what is expected in this case and also what has been seen at other reclaimed <br />sites in Colorado. Based on the results of the sedimentology evaluation, the <br />reclaimed areas at the Elk Creek Mine qualify for Phase II bond release at this time. <br />.............................................................................. <br />............................................................................ <br />Oxbow Mining, LLC Elk Creek Mine Page 6 <br />Phase 11 Bond Release Sedimentology Evaluation 2020 <br />