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<br />SCOPE <br />This report presents the results of a series of slope stability <br />U <br />analyses for the proposed Streeter Canyon fill near Meeker, Colorado. The <br />purpose of the work was to analyze the revised configuration proposed by <br />the Colowyo Coal Company. Our analyses are based on the slope configura- <br />tion supplied by Colowyo, laboratory and field investigations by Golder <br />Associates and Wahler and Associates, and site observations. The report <br />includes a description of the configuration and material properties, analysis <br />techniques, analytical results, and disscusions. A summary of our findings <br />and conclusions is presented below. <br />CONCLUSIONS <br />1. The results of analyses indicate the proposed additional spoil <br />will not adversely. affect the overall stability of the spoil <br />pile. <br />2. Our analyses indicate that the factor of safety far a deep-seated <br />failure will be on the order of 1.6. <br />3. Should either a high ground water table or a perched water table <br />develop, there is a possibility of minor slumps occurring near <br />the toe of the slope. <br />SITE CONDITIONS <br />The Colowyo Streeter Canyon fill is located in Sections 2 and 3, T. 2N, <br />R. 97W, Moffat County, Colorado (Fig. 1). Pre-mining topographic mapping <br />indicates Streeter Canyon forms a "reverse-V" where the mouth of the canyon <br />• is more narrow than upstream areas. <br />