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CMC's Responses to these questions/comments regarding the Wynona Mine shaft are listed <br /> below: <br /> a.Please describe any work that will need to be done to the shaft prior to using it for the <br /> operation. <br /> CMC Response: No work will need to be done to the Wynona Mine shaft prior to using it for <br /> milling operations. However, the drill hole will need to be restored so that the water stored in the <br /> underground mine workings can be collected and sampled. The steel casing and the pump may <br /> have to be pulled and replaced prior to resuming milling operations. <br /> b. How does the operator know the location of the collapse? Has the shaft been characterized <br /> since caving in? <br /> CMC Response: The Wynona Mine shaft was caved from approximately ten(10)feet down when <br /> the Cash Mine was originally permitted in 1984. ITEC Environmental backfilled the shaft to its <br /> present level, which is about four (4) feet below the surrounding surface elevation. CMC has <br /> determined that the shaft is filled with material down to about sixty (60) feet. This would indicate <br /> that there was about fifty (50) feet of material in the shaft before it was backfilled to its present <br /> elevation. <br /> c. Will this collapse interfere with the operator's ability to obtain accurate water level readings or <br /> collect water quality samples from the shaft? <br /> CMC Response: As described above, the drill hole will probably have to be restored before <br /> accurate water level readings and water quality samples can be collected from the Wynona Mine <br /> workings. <br /> d. How does the operator intend to install the necessary infrastructure through the collapsed shaft <br /> to pump water from the workings? Is there existing infrastructure that will be utilized? <br /> 12 <br />