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PSSAs have adequate storage to handle the normal operating volume, the 12 -hour draindown <br />volume if there is no pumping of solution from the PSSAs, precipitation from a 100 -year 24 -hour <br />storm event, solution accumulation due to seasonal climatic variation at 95 percent confidence <br />level, solution retained in the available pore space of the ore contained within the PSSA, as well <br />as five feet of freeboard. PSSAs within the AGVLF have been shown to have sufficient capacity <br />to fully contain operational and contingency flows from the AGVLF. An ESP was constructed <br />as part of the AGVLF operation; calculations included in approved MLE show that it is not <br />required to maintain contingency flows. The maximum anticipated PSSA storage volume for the <br />SGVLF PSSA, including all contingency flow, is approximately 92 MG, which represents only <br />52 percent of the maximum available PSSA capacity and 65 percent of the 80 percent PSSA <br />capacity. Design specifications associated with the SGVLF may be reviewed in greater detail in <br />Appendix 9, Volume V. <br />Power will be provided via an over head transmission line consisting of three separate circuits. <br />One circuit will be designated to the pumps associated with the AGVLF, one to the <br />SGVLF /SGADR and High Grade Mill facilities, and the other to the Cresson Project crushing <br />circuit. In addition, emergency generators are installed to operate the pumps during a power <br />outage at the ADRs and VLFs. In the event of a substantial sodium cyanide solution spill, the <br />mine has the capability to destruct 21 million gallons of cyanide solution within the ESP, as <br />previously approved under MLE. A pipeline between the AGDR and the SGADR will enable <br />treatment of water from either VLF in the ESP, if required. DRMS will be notified in advance <br />should this process need to occur at the Cresson Project. <br />A monitoring program is presented in Section 11.0 of the Project Description. Additional <br />SGVLF facility designs including capacity, redundancies, and back -up systems are included in <br />Section 7.0 of the Project Description. The emergency response measures, including reporting, <br />are contained in Appendix 14, Volume VII of this document. <br />14.8 Ground Water Information <br />Information on regional ground water, including identification of tributary water courses, wells, <br />springs, stock water ponds, reservoirs, and ditches within two miles of the Cresson Project, <br />inclusive of MLE2, are shown on Drawing G -1 and discussed previously in Section 4.6.2. The <br />discussion addresses the regional ground water system and the transport of ground water from <br />the area. The regional geology is shown on Drawing C -7 and geology beneath project facilities <br />is discussed above in Section 4.4. The igneous lithologies in the area consist predominantly of <br />phonolite, lapilli breccia, and granodiorite. Much of the breccia is cemented by a dolomitic <br />carbonate, which, with small pyrite crystals, has replaced the original mineral fragments and <br />Cripple Creek & Victor Gold Mining Company <br />Cresson Project Mine Life Extension 2 <br />14 -12 <br />