Laserfiche WebLink
further explanation was provided. Please describe the error. Will the mill be limited to operating <br /> less than 50 tons of ore per day and/or less than 260 days per year due to the water requirements <br /> (4 tons water/1 ton ore)? <br /> CMC Response: The underground water storage capacity in the Times Mine is approximately <br /> 187,000 gallons, and the water storage capacity in the Wynona Mine is approximately 660,000 <br /> gallons. The actual underground storage capacity of water for processing ore in the Gold Hill Mill <br /> has not yet been determined, because the last permitted operators of the milling facility did not <br /> utilize the Times and Wynona Mines for water storage. CMC will not know the actual underground <br /> water storage capacity until it resumes milling operations. The meters that will be installed at the <br /> Pump Station and the Wynona Mine will help determine how much water is being consumed <br /> during ore processing operations, and the actual underground water storage capacity of the Times <br /> and Wynona Mines. The recycling of some of the process water has always been a part of the plan <br /> of operations for the Gold Hill Mill, and that is expected to be employed at some point during <br /> future milling operations. <br /> Additionally, it is CMC's intention to increase the tailings storage capacity at the processing <br /> facility on property retained for this purpose. At such time, the current tailings storage pond will <br /> be converted for use as a lined water storage feature. CMC anticipates that the Gold Hill Mill will <br /> then process at a level of 50 tons of ore per day for 260 days per year. <br /> 12) The operator's response to item no. 17 states the Wynona Mine shaft has been caved from <br /> about 10 feet down to about 70 or 80 feet below the surface for many years, and no water has ever <br /> been observed flowing from the collar of the shaft. <br /> The Division has the following questions/comments regarding the Wynona Mine shaft: <br /> a.Please describe any work that will need to be done to the shaft prior to using it for the <br /> operation. b. How does the operator know the location of the collapse? Has the shaft been <br /> characterized since caving in? c. Will this collapse interfere with the operator's ability to obtain <br /> accurate water level readings or collect water quality samples from the shaft? d. How does the <br /> operator intend to install the necessary infrastructure through the collapsed shaft to pump water <br /> from the workings? Is there existing infrastructure that will be utilized? <br /> 11 <br />