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CRAPTERTWO Proposed Action and Alternatives <br />' (HDPE), and the bottom liner would be 40-mil HDPE. A geonet material would be installed <br />between the two liners to collect any water that may leak through the upper liner, and a sump <br />pump would transport any leakage back to the pond. <br />' The berms for the pond would be designed in accordance with Bureau of Reclamation Small <br />Dam Design criteria. Adequate freeboazd would be provided to: 1) accommodate the normal <br />maximum operating level plus the 100-year (24-hour) precipitation event; 2) accommodate wave <br />action on the pond level of (])without overtopping; and 3) provide at least 1 foot of freeboard <br />above the level determined in (2). Pond volume would be obtained by a combination of <br />excavation and berming. Outside slopes would be 3:1 and inside slopes would be 2:1. <br />Anticipated berm height is ] 0 feet. <br />' Initial Product Processing <br />Production fluid extracted from the solution mining wells would be routed into a single flow line, <br />' which would be the influent stream of the initial processing operation. Initial processing would <br />occur at the Piceance Site and would include several proprietary processes that would essentially <br />concentrate and prepare the production fluid so that it would be suitably stable for transport via <br />pipeline to the Parachute Site for final processing. A process flow diagram for initial product <br />processing is presented in Figure 2-8. Cazbon dioxide gas is produced as a byproduct of sodium <br />bicarbonate/sodium carbonate processing. Some of the cazbon dioxide gas would be shipped by <br />' truck to the Parachute Site and added back into the process stream during the final processing of <br />products. The other component of the initial processing operation includes prepazation of <br />recycled water returned from the Parachute Site final processing system for use as solution <br />t mining injection fluid. <br />2.2.1.3 Ancillary Facilities and Infrastructure <br />Access Roads <br />' A permanent access road about 20 feet wide currently exists from the Horse Draw road north <br />along the west side of Piceance Creek and west to the experimental test mine facility. A <br />t permanent well field access road, previously approved by the BLM, would extend from the <br />experimental test mine facility to the Piceance Site processing plant. This road would be <br />upgraded during the commercial phase and would have a total width of 28 feet, including <br />' shoulders. The Yellow Creek Jeep Trail would not be upgraded. However, approximately 6,200 <br />feet of the road would be rerouted near the processing plant site. All existing roads aze dirt and <br />gravel. <br />' Amain access road would be constructed from Rio Blanco County Road 5 (Piceance Creek <br />Road) via the Horse Draw road up to the Piceance Site processing plant. This main access road <br />would be paved with asphalt after construction of the commercial project. The proposed access <br />road would be 1.3 miles long from the Horse Draw road to the plant site. The upper 0.5 mile of <br />this road would be coincident with the permanent well field access road described above. The <br />main access road would be 24 feet wide with 4-foot-wide shoulders and 3- or 4-foot wide azeas <br />' 2-9 <br />