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Martin Marietta Materials <br />Spec -Agg 2013 Annual Report <br />Note that the result for the Southeast Wall differs from the results of the 2012 annual report kinematic <br />analyses, which identified two discontinuity intersections for the Southeast Wall that could result in wedge <br />failure. The difference is that the orientations for joints P -3 and P -6 used in this study based on the 2013 data <br />are more favorable with respect to slope stability that previously considered. Also, foliation F -3 was not <br />observed in the discontinuity orientation measurements collected this year. <br />April 22, 2013 Page 16 Lachel & Associates, Inc. <br />Project 12361005.00 ©2013 All Rights Reserved <br />