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Lyons Sandstone Quarry Mr. Richard Spots <br />Slope Stability Analyses mater and Earth Technologies <br />conservatively applied the full PGA to our pseudostatic analyses and acceptable safety factors <br />were obtained from the analyses. <br />The results of the stability analyses are presented on Figures 4 and 5. As shown on Figure 3, a <br />safety factor of 3.7 was indicated for static conditions. A safety factor of 3.4 was indicated by <br />the pseudostatic analyses for the design earthquake loading conditions. <br />3.0 LIMITATIONS <br />The above opinions are based on a reasonable degree of engineering certainty. This report has <br />been prepared based upon review of the reference documents, published values for rock strength <br />data, final proposed slope configuration provided by Water and Earth Technologies, geotechnical <br />analyses, site visits, and our experience. The results of these analyses are based on published <br />rock strength values and a simplified geologic cross - section and should be used for permitting <br />only. At the time of additional excavation or closure a design level slope stability analyses <br />should be completed. No warranty is made, express, or implied. <br />March 21, 2014 2 Engineering Analytics, Inc. <br />