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13.7 Calculation of Detoxification Costs <br />The detoxification procedure for the VLFs is consistent with prior submittals and includes using <br />two pore volumes of water to rinse with a series of resting and rinsing periods followed by an <br />application of one pore volume of H2O2 treated water. The rinsing is followed by a period of <br />water sampling to determine whether neutralization of the facilities have been achieved to <br />acceptable standards.. The objective is to achieve an average of less than 0.2 mg/L CN in the <br />rinsate from the facilities. Current CC &V operating costs (2011) have been used to establish <br />water handling costs in this estimate. <br />13.8 Summary <br />Financial warranty requirements for reclamation of the Cresson Project, inclusive of MLE2, at <br />full development and point of maximum disturbance have been determined. The total financial <br />warranty is estimated to be approximately $171,418,558 US dollars for the Cresson Project. The <br />overall costs will be incrementally posted as disturbances occur. <br />Cripple Creek & Victor Gold Mining Company <br />Cresson Project Mine Life Extension 2 <br />13 -6 <br />