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Each pipeline will use both sizes of pipe, and for both pipelines the <br />transition to the other pipe size will occur at the top of Davis Point. The <br />product line will consist of 12.75-inch-diameter pipe for the 32 miles from <br />the Piceance Site to the top of Davis Point, with the remaining 12 miles <br />consisting of 10.75-inch-diameter pipe. The return water line will consist <br />of 12.75-inch-diameter pipe for the 12 miles from the Parachute Site to the <br />top of Davis Point and 10.75-inch-diameter pipe for the remaining 32 <br />miles to the Piceance Site. <br />The pipe will be manufactured with American Petroleulm Institute (API) <br />X60 grade steel, which. is stronger than most steel pipe used for gas <br />pipelines. The wall thickness of the pipe will likely be further increased in <br />areas of road crossings to meet jurisdictional restraints and design criteria. <br />Wall thickness may be increased for added strength, workability, and safety <br />at valves, stream crossings, and road crossings. <br />The pipelines will have insulated jackets to reduce heat loss while the <br />solutions aze being transported between facilities. The iinsulated jacket is <br />made up of three components. First, cheat-resistant fusion-bonded epoxy <br />(FBE) coating will be applied to the steel pipe. This FBE coating will act as <br />ananti-corrosion layer and will be applied under controlled conditions at <br />the pipe mill. Second, a layer of closed-cell polyurethane foam with a <br />nominal thickness of 1.75 to 225 inches will be applied as the primary <br />insulation to minimize heat loss. Finally, an approximately 0.275-inch- <br />thick outside jacket of high-density polyethylene will be added. <br />• Valves: Two full-conduit gate valves will be placed in each pipeline to <br />allow the pipelines to be shut down for pressure testing and maintenance. <br />The valves will be buried below ground in 6-foot corrugated conduit pipes <br />and will be accessible through a locked box at ground level. These valves <br />will be manually operated. <br />The valves will be situated at locations allowing for relatively easy access, <br />one near the road in Stewart Gulch (Section 9, R96W, T3S) and another at <br />the upper end of the Pazaehute Creek valley (Section 30, R95W, T5S). This <br />will create three sections along the pipeline corridor. 'The upper section <br />would be approximately 15 miles long, the middle section would be <br />approximately 20 miles long, and the lower section would be <br />approximately 9 miles long. <br />• Expansion Joints: Expansion joints will be placed on both pipelines at <br />appropriate intervals. The purpose of expansion joints is to allow for pipe <br />movement when the pipe is initially heated up. Expansion joints will be <br />U-shaped (with 90 degree comers and sides 20 feet, 30~ feet, and 20 feet). <br />Expansion joints will be placed at the same location on. both pipelines to <br />allow for thermal expansion of both lines. <br />Pipeline Plan of Development (~ <br />Yankee Gulch Sodium Minerals Peoject <br />Amerimn Soda, LLP. <br />