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from the portal to this Mine Water Pond and mixed with water from a diversion of Sneffels <br />Creek (up to 1000 gpm). The water will get residence time in the pond, which will allow for <br />some of the zinc to settle out. Additionally, by mixing the mine discharge water with the <br />cleaner water from Sneffels Creek, it is believed that the chemical processes cited above, <br />which has been removing zinc from the water naturally, will occur in the pond to remove <br />zinc. <br />c) The third method of improving the mine water quality will be source control within the <br />underground mine. Areas that generate water that are high in dissolved metals may be <br />sealed off to prevent these flows from joining the Revenue water and being discharged. In <br />particular, the Atlas drift may be sealed since it has a low flow of poor water quality. See <br />Exhibit G for details. If a seal is employed, the seal will be reinforced concrete and designed <br />to hold the maximum water head behind the seal with a significant safety factor. It is <br />extremely unlikely that this seal will result in this water showing up anywhere else since the <br />water is coming from the Atlas vein itself and the actual Atlas Mine workings are more than <br />250 vertical feet above the short drift. <br />Revenue Mine August 2012 T - <br />