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The attached cross-sections show the estimated phreatic surface associated with each case. METHODOLOGY The embankment configuration shown in the computer analysis represents the proposed reservoir liner which is a 16 foot high embankment with a 3:1 side slope. Material properties where obtained from typical values for the onsite soils identified in the geotechnical report. The method used in the computer analysis for determining safety factors was the Simplified Bishop's Procedure. The analysis seazched for circular shear failures and automatically search for the lowest safety factor. The proposed minimum safety factors are based on the current standards used by the State Engineer in evaluating embankment dams. SLOPE STABILITY RESULTS The results of the slope stability analysis are presented in Table 2. The calculated factors of safety are within the design criteria specified for this project and can be considered indicators of the embankment performance under the various conditions. Table 2. Slope Stability Analysis Results Descri lion Factor of safet Case 1 -Minin Conditions 1.4 Case 2 -Minin Conditions 1.5 Case 3 -Full reservoir 2.5 Case 4 - Ra id Drawdown l.7 CONCLUSIONS AND RECCOMENDATIONS The materials available onsite appear to be suitable for construction of the proposed earth embankment. They are similar to other projects that have been successfully done in the area. If proper quality control procedures are used, the embankments should remain stable. 2. The safety factor calculated for the mining conditions adjacent to barbed wire fences is 1.4. The proposed 30' setback is adequate based on the assumptions used in the analysis. The safety factor calculated for the mining conditions adjacent to the Boyd Lake Outlet Ditch is 1.5 which exceeds the minimum requirement of 1.25. The proposed setback from the top of the ditch bank is adequate.