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<br />• In view of the results of these analyses, the stability of the <br />west pile is considered to be adequate under existing conditions and <br />that reconfiguration of the pile should not be required prior to final <br />reclamation. <br />CASE II <br />An additional analysis was performed on the section shown on <br />Plate 12, Figure 2. This section was obtained from the east waste pile <br />that is located on slightly to moderately sloping valley sid~as where the <br />foundation consists of colluvial soil. This is typica] of much of the <br />east pile. The slope of the natural ground is on the order of about 12~. <br />The results of the stability analyses indicate that safety <br />factors in excess of 1.3 have been calculated for shallow surficial-type <br />failures under both wet and dry conditions. The lowest s~rfety factor <br />calculated for a deep-seated failure is for a foundation failure along <br />• the layer of colluvial soils, where, fora wet case, a factor of safety <br />of 2.21 has been calculated. <br />The calculated factors of safety indicate that a File of this <br />configuration is adequately stable and should not require any modifi- <br />cations prior to final reclamation. <br />CASE III <br />The last analyzed case comprises the east waste pile (Stability <br />Section 4), where the pile is located on a fairly steep natural ground <br />with a slope of about 24'. The analysis of this case is again presented <br />on Plate 12, Figure 3. This section is typical of the construction of the <br />south end of the east pile. <br />Relatively low factors of safety for surficial failures (1.18 <br />for both wet and dry conditions) reflect the steep angle at which these <br /> <br />_ 23 _ <br />