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CNAPTERFIVE Draft ~s Devistons <br />• CHAPTER 2.0 PROPOSED ACTION AND ALTERNATIVES <br />Page 2-3: Well Field <br />At times, two of the 5-year mining panels outlined in Figure 2-2 would be under development at <br />the same time. For instance, as development of the 0-5 year panel approaches completion, <br />development of the 5-10 yeaz panel would commence so that there would always be sufficient <br />solution mining wells in production to feed the processing plants. Reclamation of the 0-5 year <br />panel would begin at approximately the same time as development of the 5-10 year panel, as <br />described in Section 2.2.7.2. Therefore, at any one time, the distwbed azea (i.e., acreage in an <br />unreclauned, barren and/or unvegetated state) in the well field would roughly approximate the <br />size of one of the mining panels, i.e., from approximately 59 acres to 98 acres. Additional azeas <br />(~uivalent to 1 to 2 mine panelsl would be in various stages of vegetative development after <br />initiation of revegetation. This would occw beginning at vear 5 and continuing for about ten <br />yeazs after completion of mining. <br />Paee 2-4: Development Sequence and Schedule <br />Construction of the surface facilities would be completed within about 18 months of approval of <br />the Record of Decision (ROD), with facility startup upon completion of construction. Mining <br />would ocew for up to 30 yeazs. <br />mss: Mining would proceed 24 bows per day, 365 days per year. <br />Page 2-12; Pipeline Description <br />• The pipelines would be constructed of 10.75 ;and 12.75~4.9A inch-diameter pipes covered <br />by insulative and protective coatings; pipes would be in nominal 40-foot or 80-foot lengths. <br />Both pipelines would be constructed with American Petroleum Institute 31;X60 azade steel. <br />Pipe diameters, wall thickness requirements, and steel pipe characteristics would be based on <br />meeting Maximum Allowable Operating Presswe. The wall thickness of the pipe may be <br />increased in azeas of road crossings to meet jurisdictional restraints and design philosophy. All <br />pipes would have 12 to 14 mils of fusion-bonded epoxy (FBE) external corrosion coating. <br />Due to required operating conditions, the pipelines would have an insulated jacket to minimize <br />heat loss during transport of fluids between the Piceance Site and the Parachute Site. The <br />insulated jacket would consist of three components: 1) the heat-resistant FBE described above <br />would be applied to the pipe, 2) a closed-cell polyurethane foam with nominal thickness of wee <br />1.75 to 2.25 inches would be applied to the pipe as the primary insulation, and 3), ahigh-density <br />polyethylene cover approximately 0.275 inch thick would be applied as the outside protective <br />jacket. <br />Pie 2-13 <br />Pumps to operate the pipelines would be located at the Piceance and Parachute plant sites. <br />Pumps would be housed in the plant buildings and would be electrically operated. No pump <br />stations would be necessary along the pipeline. <br />Two manually-operated, full-conduit gate valves would be placed on each pi~line to allow the <br />. pipelines to be shut down for pressure testing and maintenance. The valves would be buried <br />5-3 <br />