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• contingency inflow, reporting to the PSSA. All of the PSSAs will fully contain <br />operational and contingency flows, therefore no solution is predicted to report to the <br />External Storage Pond ("ESP"). Accordingly, the ESP will be used periodically to store <br />make-up water during operation of the combined VLF. If, however, the ESP is needed for <br />solution storage, cyanide destruction circuit will be used as approved under Amendment <br />No. 8. The water balance results are presented in Appendix 8, Volumes V and VI of this <br />document <br />6.7 Surface Water Diversion System <br />A surface water diversion system has been designed for the Phase 5 VLF extension area. <br />The diversion system has been designed for the maximum limits of the construction, <br />however during the 3 year construction period temporary diversion will be used to <br />control upgradient storm water flows and direct these flows away from the construction <br />area. The diversions have been sized to divert upgradient surface water flows around the <br />facility. The diversions have been designed to carry peak flows from a 100-year, 24-hour <br />storm event of 3.5 inches. Both operation and post-operation diversion designs are <br />included in Appendix 8. <br />• Surface water diverted around the north side of the Phase 5 VLF will be routed to a <br />sediment pond designed to contain twice the runoff from the 10-year, 24-hour storm <br />event. The design also includes the ability to pump water from the pond into the Phase IV <br />PSSA if needed. Surface water diverted on the south side of the VLF will not come into <br />contact with mine-impacted surfaces and will be directly released onto a natural bench <br />landform. <br />• <br />Cripple Creek & Victor Gold Mining Company <br />Cresson Project Mine Life Extension <br />6-12