Laserfiche WebLink
As part of MLE, the solution enrichment circuit was upgraded at the AGADR to allow an option <br />to circulate pregnant solution from Phases I, II and IV PSSAs onto Phase 5 of the AGVLF <br />affecting enrichment of the gold in solution. As part of the enrichment circuit upgrade, pregnant <br />solution from the Phases I, II and IV PSSAs can either be pumped to the pregnant solution <br />distribution tank and into the carbon trains at the AGADR or can be pumped to the enrichment <br />tank for routing to Phase 5 of the VLF. The enrichment tank is an existing tank located adjacent <br />to the barren solution tank and within the existing AGADR containment system. The enrichment <br />tank has a capacity of 100,000 gallons. The potential maximum total amount of solution in <br />circulation at the AGVLF is about 29,100 gpm, distributed equally between the Phases I, II, III <br />and IV of AGVLF and associated PSSAs at an average combined rate of 16,000 gpm (maximum <br />total rate of 19,000 gpm) and the Phase 5 of AGVLF and PSSA at a rate of approximately 10,000 <br />gpm. At any one time, the amount entering the AGADR for gold recovery is no more than <br />approximately 17,000 gpm and averages approximately 16,000 gpm. <br />As part of MLE2, two steel pipelines will be constructed from the AGADR to the SGADR to <br />allow transfer of fresh water and barren solution from the AGADR to the SGADR. The barren <br />solution pipeline will be 24 inches in diameter and will be double - walled where it runs on <br />unlined ground. The fresh water pipeline will be 12 inches in diameter. Water and barren <br />solution will flow through the pipelines partially by gravity flow and partially by pumping. <br />8.2 Squaw Gulch ADR <br />The SGADR complex will consist of the SGADR building along with a storage area, warehouse, <br />offices, and parking. The area will be similar to the existing AGADR. The SGADR complex <br />will be located on the southwest edge of the SGVLF upgradient of the toe berm on the north side <br />of realigned SH 67. Vehicles will enter from SH 67 with a new access to be permitted through <br />CDOT as discussed in Section 5.8. The complex will be located within a fenced and gated secure <br />area. There will be a guard house at the gate to monitor vehicles entering the facility. <br />The SGADR building and chemical storage areas will be constructed on a graded and prepared <br />foundation within the PSSA lined area of the SGVLF. The grading will be completed on placed <br />ore. Location of the SGADR and associated facilities within the PSSA lined area will allow any <br />drainage from the SGADR surface area to have secondary and tertiary containment as provided <br />by the SGVLF PSSA liner system described in Section 7.2.1 of the Project Description. <br />Concrete flooring for the SGADR will include curbing and floor drains graded to carry flows to a <br />sump which can be pumped to recover any potential spills. <br />Cripple Creek & Victor Gold Mining Company <br />Cresson Project Mine Life Extension 2 <br />8 -4 <br />