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Geotechnical Stability Exhibit <br /> Engineering Evaluation of Highwall Design for the South Quarry of the Morrison Quarry <br /> Table 12— Summary of FLAC/Slope Results <br /> Bench Material FS <br /> Configuration <br /> 40/40 Talc-Gneiss 2.13 <br /> 60/40 Competent Material 2.68 <br /> 60/40 & 40/40 Competent Material & Talc- 2.82 <br /> Gneiss <br /> Based on the results of FLAC/Slope, the anticipated proposed geometry is well above the <br /> required 1.25 factor of safety. Detailed reports of the FLAC/Slope models are provided in <br /> Appendix C, Calculations. <br /> May 2023 1 28 <br />