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<br /> <br />r 1 <br />U <br />lower portion ranges from an elevation of approximately 5,680 <br />feet along the North Fork Gunnison River to an elevation of 5,700 <br />feet at the top of the Farmers Ditch. The upper level ranges from <br />5,700 to 5,780 feet near the highway. <br />The stockpile area is located entirely outside of the <br />alluvium. A 450' x 300' (approx.) platform was created for the <br />stockpile by excavating the slope outwash material, which left <br />steep slopes on three sides of the pile area. A small <br />sedimentation pond is located at the extreme northeast corner of <br />the excavated area. This sedimentation pond collects all runoff <br />from the stockpile area. Any discharge from this pond has to <br />comply with the Colorado Waste Water Discharge permit 230. CO- <br />0033 685 for the discharge point No. 004. <br />Man-made fills border the pile area on the southeast where <br />they support rail tracks, and on the northeast where the roadway <br />fill allows an underpass for the railroad spur. A large area <br />between the railroad spur and the alluvial valley was excavated <br />to provide borrow material for these fills. The stockpile site <br />has apparently been used as flood irrigated orchards in the past. <br />The loadout facility has been constructed partly on the <br />uplands northwest of the North Fork Gunnison River and partly on <br />the alluvium. The construction required the excavation of several <br />fills, notably the fill for the truck unloading facility, and a <br />road fill east of the coal storage area. In order to achieve the <br />same elevation for the facility, a fill has also been constructed <br />on a limited portion of the alluvium at the northeast end of the <br />facility. A fill for the railroad spur extends further across the <br />valley and to the other side of the river. <br />13 <br />GEO-HYDRO CONSULTING, INC. <br />