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pumps into a separate mixing tank as needed to allow the proper mixing concentration. Since the <br />flow rate in the sluice is constant, this will be easy to accomplish. This mixing tank will be a heavy <br />duty plastic 100 -gallon tank. A fixed mixer will accomplish the thorough mixing. A small valve and <br />garden hose type pipe will allow the mixed solution to flow to the sluice box where the mixture will <br />be allowed to enter the slurry from the sluice where the flocculation of the fine particles in the <br />sluice tails pond will take place. The chemical is used in very small quantities and the solids should <br />settle very rapidly, based on experience at other sites. <br />One, at least, 55 gallon drum of the Hyperfloc will be stored on site at any one time. The Hyperfloc <br />will be stored in the drum within 50 feet of the sluice so that it can be mixed and applied to the <br />sluice tails within a short distance. Additional tanks of Hyperfloc will be stored in secondary <br />containment on site to be readily available for use when necessary. <br />Water flows from the sluice into a ditch which carries the water by gravity to the sluice pond. <br />The 55 -gallon steel drum, the 100 gallon mixing tank and I50 -gallon water tank will all sit inside a <br />metal stock tank of a minimum of 10 feet diameter and 2 feet tall, which is more than enough to <br />contain 110% of all tanks being ruptured. A standard 55 -gallon drum spill kit will be placed on site <br />to be rapidly employed in case a spill of the flocculent were to occur. All employees will be trained <br />to check for spills of the flocculent and trained in the use of the spill kit. In addition, DRMS, <br />CDPHE and Park County Department of Health will be immediately notified if any spill occurs <br />from the flocculent. <br />The expected wet chemical use with water will be at the ratio of 0.75 -gallon liquid chemical per <br />hour for the expected flow rate of 1400 gallons per minute. This was determined from a laboratory <br />test conducted by Hychem on the actual dirty water at the Alma Placer. <br />Therefore, since the gold operation uses a process flow rate of 1400 gallons per minute for an <br />expected I 0 -hour day, the chemical will be used at the average rate of 7.5 gallons per day. See <br />enclosed data from Hychem. <br />Fairplay Au Pit March 2017 D-6 - Gntlz.kU*WAwocbt MAX <br />