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<br />• <br /> <br />Table 3 <br />Factors of Safety <br /> Lower Sloe slow Coal <br /> 2H•1 V 1.38H:1 V <br />Condition Westec Barr Barr <br />Slo a without Buttress 1.49 1.55 -- <br />Slo with Buttress -- 1.31 <br />The upper extent of the R.O.M. pad expansion was also reanalyzed with the soil properties used <br />by Westec. The factor of safety of this slope was found to equal 1.67, as shown on Figure 5 and <br />is an adequate comparison to the previous factor of safety of 1.68. <br />3.3 Relation to Main Landslide <br />Previous mapping and analysis has determined that the western limit of the main landslide at the <br />West Elk Mine is between the first and second stack tubes. The R.O.M. pad expansion evaluated <br />in this report is outside the limits of the main landslide, and the stability of this area can be <br />considered independent of other slide movement. MCC continues to monitor points on the stack <br />tubes for verification of the limits of the landslide. <br />P:UM~26~030ViOMpileVetter.doc <br />n. - <br />5 <br />