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KiLDUFF RMR Aggregates, Inc. <br /> U N D E R G R D U N D Revisions Table-Rock Failure Analyses and Stabilization Report <br /> E N G I N E E R I N G,I N C. Mid Continent Limestone Quarry <br /> 7) While not discussed in this Memo or in the Section 7 Blasting Impacts to <br /> Report, RMR is approved for blasting per the Stability has been added to address <br /> permit. Please have RMR or KUE address the the potential impact blasting may <br /> potential impact blasting may have on the have on the stability of the Mine. <br /> stability of the Mine and have it modeled within <br /> the provided active mining and post-mining <br /> analyses. <br /> 8) When reviewing the associated stability analysis Stability models in Appendix G have <br /> o with mechanical stabilization under Appendix G, been revised to achieve a FOS of <br /> it was observed that none of the scenarios 1.5 static and 1.3 seismic. <br /> provided met the minimum FOS of 1.5 as stated <br /> in the Report. <br /> 0 <br /> 9) Per Section 30 of the Policies of the Mined Land Long term steady state models for <br /> Reclamation Board, for generalized,assumed, or multiple bench geometries and <br /> single test measurements for critical structures, active stabilization models have <br /> the minimum recommended FOS is 1.5 for static been run for both static and seismic <br /> o conditions and 1.3 for seismic conditions.No and are included in Appendix D and <br /> seismic conditions were provided or evaluated G, respectively. <br /> by KUE in the Report. In order to ensure all <br /> requirements of Section 30 are satisfied,please <br /> have KUE provide stability analyses for the <br /> wMine under seismic conditions for all active <br /> � <br /> mining and post-mining scenarios under KUE <br /> recommendations. <br />