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The relocation of the railroad spur is anticipated to require about 1.3 acres with a <br />total disturbance of about 2.5 acres including constriction. The length of the <br />relocation is about 300 feet in an area w{:ere a building has been constructed next to <br />the bed. The relocation would occur largely within the existing ROW. ' <br />36. Section 2.3.1, page 2-13 -What aze the acres of disturbance for new facilities at the <br />Parachute site? Some calculations can be done with information provided on page 2-I5, but <br />"other new facilities" cannot be calculated. <br />See Item 2 <br />37. Section 2.3.4, page 2-15 -The existing evaporation pond is stated to be about 11.5 acres. <br />However, the evaporation pond shown on Figure 2-9 is only about 5.7 acres in size at the scale <br />indicated (1 inch = 500 feet). Is the map scale wrong, or is the evaporation pond somewhere <br />else? <br />Your calculation appears to be in error, we rechecked the figure and it seems to be <br />correct. However, the number, size, and location of ponds have changed as <br />discussed in Item 2 (also see Item 38). <br />38. If the fmal size of the evaporation pond cannot be decided before the PDEIS, we will <br />asstune 46 acres. Where will a 46 acre pond be located? What is there now? Describe why the <br />pond must be 3 to 4 times lazger if water treatment is needed. Section 2.3.2.4 describes a water <br />treatment planGas a project feature, but here it's a question? <br />The pond size has been resolved (also see Item 2). The water delivered to the plant <br />from the water system requires treatment (filtering and reverse osmosis) to remove <br />impurities (TDS) before being used by the project. In treating the water, a portion of <br />the water with the concentrated impurities is rernoved and sent to the evaporation <br />pond. The amount of water treated is proportional to the amount of water rejected <br />and sent to the pond. It was initially thought that the water used in the mining <br />process might not have to be treated but, in fact, that water must also be treated. As <br />a result it was feared that the pond size might have to increase substantially to <br />accommodate the additional water treatment. The uncertainhj zvas with respect to <br />the amount of treatment, not the need for treatment facilities. In the end, the <br />additional water treatment did not require a 3-4 times expansion of the pond. <br />The pond sizes are presented below. <br />POND Surface Area Total disturbance <br />Piceance Site <br />Evaporation Pond 13 acres 23 acres <br /> <br />20 <br />