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Parachute Site Evaporation Pond 15 acres 24 acres MVR Purge Pond 21 acres 33 acres Water Storage 2.3 acres 4.5 acres Stormwater Retention 1 acre 2 acres 39. Same comments as above for the evaporation pond on the Piceance Site. See Item 38 above. 40. Figure 2-2 -What aze the two ponds on the top, right side of the figure just outside the boundary line? This figure needs a north arrow. Those ponds are the existing test phase ponds. 41. Figures 2-6 and 2-8 -Describe in the text the Drill Pad Items listed --- e.g., what is a desander pit? During drilling, the water based - bentonite drilling fluid carries large cuttings of'the formation and small particles of sand and silt to the surface. The large cuttings are removed from the system by the shale shaker. They have the exact same composition as the geological formations of their origin. In American Soda's operation, they consist of sandstone, siltstone, oil shale, and nahcolite. For each well, approximately 4,500 cubic feet of materials is produced. The small cuttings that pass through the shale shaker are removed from the drilling fluid by using a series of small hydroclones. The are referred to as the desanding units. The discharge of these units is placed into a small lined pit referred to as the desander pit. Mud Tank - a steel tank usually with a capacity of 200 - 300 barrels that contains the drilling fluid during drilling operations. Crane Truck - a truck with a hydraulic crane attached which provides lifting for drill tools, drill pipe, casing, and tubulars. Mud Pump -the pump which circulates the drilling fluid while drilling. Too[ Van - a truck which contains small hand tools and small replacement parts for the drilling rig. Rod Deck - a piperack that is used as a staging point for all drilling tools, drillpipe, casing and tubulars. Work Platform - a platform that is used in conjunction with the rod deck to assemble drill tools and handle drillpipe, casing, and tubulars. 21