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a. the elevation of the Times Mine portal b. the floor elevation at the bulkhead location c. the <br /> collar elevation of the 50 foot winze d. the collar elevation of the Wynona Mine shaft e. the <br /> proposed maximum water level to be maintained in the mine workings f. the length and diameter <br /> of the culvert installed in the Times Mine adit g. the dimensions of the concrete bulkhead in the <br /> Times Mine adit h. the distance to the bulkhead from the portal entrance i. the distance between <br /> the bulkhead and the winze opening j. the location of any equipment installed or to be installed in <br /> the Times Mine adit and/or Wynona Mine shaft <br /> These details are needed to better depict the proposed water storage scenario, and thus help the <br /> Division determine whether disturbances to the prevailing hydrologic balance will be minimized, <br /> as required by Rule 3.1.6(1). <br /> CMC Response: The exact attitude of the Times Mine winze was not determined prior to pumping <br /> water behind the bulkhead in the mine in 1987, but it was observed to be an inclined winze at the <br /> time that the mine was cleaned up by Gold Hill Ventures' miners. The generalized cross-section <br /> of the Times-Wynona Mines shows the location of the four known levels driven along the vein off <br /> the Wynona Mine shaft. None of these four levels are known to connect with any other mine <br /> workings in this area, other than the Times Mine via the winze. The previously submitted cross- <br /> section of the underground mine workings in the Wynona Mine was drawn along the vein. The <br /> cross-section of the Times-Wynona Mines was drawn along the cross-cut that was driven at a right <br /> angle to access the Times vein, which has the same general attitude as the Wynona vein. Both of <br /> these veins are striking northeast-southwest. The internal shaft, or winze, was most likely sunk to <br /> access the Wynona Mine for ventilation when both of these mines were last active. <br /> These details (as determined by a survey completed by a Colorado Registered Mineral Land <br /> Surveyor) have been added to the cross-section prepared for this Response Letter: <br /> a.The elevation of the Times Mine portal is 8,342.60 feet. <br /> b.The floor elevation at the bulkhead location is 8,342.40 feet. <br /> c.The collar elevation of the 50 foot winze is 8,347.70 feet. <br /> d.The collar elevation of the Wynona Mine shaft is 8,444.98 feet. <br /> e.The proposed maximum water level to be maintained in the mine workings is 8,364.50 feet at <br /> the top of the Times Mine stope above the winze. <br /> 3 <br />