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CHAPTERTWO Proposed Action andAlternatiues ' <br />for drainage ditches and berms, for a total width of 38 to 40 feet. The main acce:;s road and the , <br />permanent service roads aze shown in Figure 2-6. <br />Temporary roads would be necessary to allow access to azeas under development. and operation <br />within the well field. Each mining panel would have a central access road, and a network of , <br />minor access roads would be constructed to serve the wells. The temporary access roads would <br />be 12 feet wide with 3-foot shoulders on each side, with a total disturbed width of approximately <br />22 feet, including drainage accommodations. The well access roads would be constmcted , <br />concurrent with development of new wells under the two-pass mining approach. As wells aze <br />retired, the well access roads would be abandoned and temporarily stabilized until final ' <br />reclamation of the mining panel. <br />Natural Gas Supply , <br />Solution mining and product processing at the Piceance Site would require heat, which would be <br />produced by onsite, natural gas-fired boilers. Two altemative natural gas pipeline routes aze ' <br />under consideration for the project, each corresponding to a different potential n~Rural gas <br />vendor. The two potential natural gas pipeline routes aze shown in Figure 2-6. <br />Natural Gas Pipeline Alternative A <br />The first altemative gas pipeline route would extend the existing 6-inch natural gas supply line , <br />that serves the experimental test mine facility from its current ternunus on the eastern boundary <br />of the Piceance Site west to the initial processing plant azea. The total length of this route would <br />be 1.9 miles, most of which would be through disturbed azeas in the experimental test mine , <br />facility azea and along the permanent well field access road. <br />The natural gas pipeline would be placed in a 28-inch-wide trench at a depth of =~ feet. A ' <br />permanent right-of--way width of 12 feet and a construction width of 24 feet would be needed. <br />Within the 24-foot construction corridor, a width of about 12 feet would be disturbed by the <br />trench, construction equipment, and material laydown. This 12-foot width would be cleazed of ' <br />vegetation. The remaining 12-foot width would be used for topsoil and subsoil storage and <br />handling. Trees and shrubs would be removed but low-lying vegetation would left in place. To <br />minimize disturbance, the natural gas pipeline would be located in the same corridor as the main ' <br />header pipe rack where it pazallels the well field access road. Taking this overlap into account, <br />this altemative would result in a total disturbance azea of about 3.6 acres. Only aibout half of this <br />azea (1.8 acres) would involve soil disturbance and complete vegetation clearing. ' <br />Natural Gas Pipeline Alternative B , <br />The second altemative gas pipeline route would follow the proposed project pipeline route from <br />the Piceance Creek Compressor Station west to the initial processing plant azea. The total length <br />of this route would be 8.5 miles, virtually all of which would follow the project pipeline right-of- ' <br />way. This route would cross Piceance Creek at the access road near the mouth of Horse Draw. <br />Under this altemative, the natural gas pipeline would be installed in the same trench as the two ' <br />project pipelines, as described in Section 2.2.2.3. Addition of the gas pipeline would require the <br />2-10 ' <br />