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Mr. Michael Cunningham <br />CDRMS <br />November 26, 2013 <br />9. The Applicant has stated that containment loss of the stored chemicals or reagents will <br />be directed to the mill sump and then to the TSF. Please provide a description of fluid <br />management and describe how chemicals or reagents that are collected in the mill sump <br />will be conveyed to the TSF. <br />Response: <br />Liquid quantities of reagent in use at one time are small (see Table 4 -5) to minimize risk <br />due to spillage and waste. Chemicals not needed immediately, will be stored in Over- <br />pack Barrel containers. The reagent mixing area is at the fine ore bin level. Any spillage <br />not cleaned up at the source will be washed down to the sump. If chemical laden water <br />gets to the sump, it can be pumped up to the tailings trough which will flow to the TSF <br />(see Figure 6 -2) to mix and dilute with the water decanting from the tailings in the TSF. <br />10. Please specify when construction of the new crushing building and attending facilities <br />will commence. <br />Response: <br />See response to question 7. <br />11. The Applicant plans on constructing a new crushing facility, a scale, a trailer foundation <br />and ore storage bunkers. Please specify the depth to which soil will be salvaged for use <br />in the reclamation process as Required by Rule 6.3.3(1 Kb). In addition, describe how <br />salvaged topsoil will be stabilized and protected from erosion and depict the location of <br />any new topsoil stockpiles on the Figure 6 -2. <br />Response: <br />See response to question 7. Since these improvements will not occur, topsoil <br />management for reclamation will not be required. <br />12. As required by Rule 6.3.3(2)(c), please describe the measures used to divert upland <br />drainage away from the site both during and after the operation. Also, include design <br />details demonstrating the capacity of the ditches and impoundment structures to contain <br />operation solutions and the volume of water generated by a 100 year 24 -hour rainfall <br />event. <br />Since the Leadville Mill has been classified as a Designated Mining Operation (DMO), <br />stormwater runoff will not be allowed to report to the TSF. Stormwater must be routed <br />around the mill facility or otherwise controlled through the use of BMP's. <br />Response: <br />UMC is operating under a Construction Stormwater Permit until which time we will apply <br />for an Operating Stormwater Permit (application provided in Appendix 7 -7 in Permit <br />Application). The Stormwater Permit requires we prepare and have on file a Stormwater <br />