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<br />water pipelines would be placed in separate bores 10 feet apart. The construction right- <br />of-way would flare somewhat to allow construction activities at the road crossings. <br />The pipelines will also cross four gravel roads. These roads will be open cut, similar to <br />construction operations elsewhere along the pipeline corridor, and the pipes would be <br />buried at standard depths. <br />All stream crossings and wetland crossings will be open cut. Streams will be <br />temporarily dammed to allow construction across the channel, or active streams may be <br />diverted temporarily if flows are too great. Stream and wetland crossings will be <br />constructed such that there would be 5 feet of cover from the top of the pipe to the <br />bottom of the restored streambed. <br />Up to six laydown areas of approximately 4 acres each will be located along the pipeline <br />route at positions that are logistically significant for construction, not necessarily within <br />or adjacent to the pipeline corridor. In addition, 20 to 25 temporary use areas of <br />approximately 1 acre each will be established along the pipeline corridor at road and <br />stream crossings and at other points such as the top and bottom of Davis i'oint. <br />The pipeline will be constructed in three segments. Construction is expected to take 120 <br />to150 days to complete. <br />D.2.6 Utilities <br />D.2.6.1 Piceance Site Utilities <br />Natural Gas Natural gas will be provided to the Piceance Site via a pipeline. <br />Two alternate pipeline routes are under consideration for the project, each <br />corresponding to a different potential natural gas vendor. <br />The first alternative natural gas pipeline route would extend from the existing 6-inch <br />natural gas supply line that serves the experimental test mine facility to the Piceance <br />Site initial processing facility. The total length of this route would be 1.9 miles, most of <br />which would be through disturbed areas in the experimental test mine facility area and <br />along the permanent well field access road. <br />The second alternative natural gas pipeline route would follow the proposed pipeline <br />route from the Piceance Creek Compressor Station west to the initial processing plant <br />area. The total length of this route would be 8.5 miles, virtually all of which would <br />follow the project pipeline right-of-way. This route would cross Piceance Creek at the <br />access road near the mouth of Horse Draw. The natural gas pipeline would be laid in <br />the same trench as the product and return water pipelines. The trench would have to <br />be widened about 48 inches. <br />D-9 <br />