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<br /> <br />in the approved reclamation permit. Drainage from the upstream <br />areas will be reestablished across the tailings facility in an <br />engineered channel and spillway to ensure a permanent and stable <br />drainage configuration across the facility. The design of the <br />drainage configuration utilizes extremely conservative assumptions <br />to ensure a permanent and stable facility under extreme conditions. <br />For example, the engineered channel and the reclamation spillway, <br />are both sized to allow passage of the PMP while maintaining one <br />foot of freeboard in the embankment. <br />Technical analyses included in the amendment application <br />demonstrate that the tailings structure will be geotechnically <br />stable during every phase of operation and reclamation, even under <br />improbable extreme earthquake conditions. In addition, as <br />discussed above and demonstrated in the application, the facility <br />will retain its stability under extreme flood events. Finally, the <br />application demonstrates that the treated tailings are essentially <br />inert, nontoxic material of extremely low permeability which pose <br />no threat of contamination to either surface or groundwater and <br />which can be reclaimed fully as required by the MLRB's Rules and <br />Regulations. <br />The MLRD Review <br />The amendment application was submitted by Battle Mountain on <br />October 10, 1989. The application was determined to be complete <br />by the MLRD on October 20, 1989. Battle Mountain fully complied <br />with all public notice requirements of MLRB Rule 2.? and the <br />application was set for MLRB consideration at its December meeting. <br />6 <br />