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2.0 INTRODUCTION This Soil Conservation, Erosion and Sediment Control, Reclamation, and Revegeta[ion Plan ('"I'he Plan") describes measures to be taken by American Soda, L.L.P. ("American Soda") and its contractors [o protect and restore areas of disturbance associated with mine development, operation and retirement. The Plan is designed to control and minimize soil erosion, sedimentation and stabilize soils through the use of best management practices ("BMPs"), and to effectively address the restoration and revegetation of disturbed areas. BMPs to be used on site include but are not limited to the practices, methods and products contained and described in this document. The Plan also presents monitoring and maintenance activities to ensure that the control measures are successful and continue to function properly throughout the life of the project. Given that project designs are currently in a detailed yet preliminary condition, and considering the long project life, American Soda recognizes the need for continued analysis, planning, and implementation of erosion control and reclamation practices as the project progresses. Such activities would be an ongoing part of project activities and would involve input from appropriate agency personnel in carrying out a coordinated plan. 2.1 PROJECT DESCRIPTION American Soda has proposed a commercial mining operation involving development of vertical solution mining wells for the exvaction of bedded and disseminated nahcolite on the Yankee Gulch Joint Venture Leases ("Piceance Site"), which are located in the Bureau of Land Management's ("BEM's") White River Resource Area near Meeker, Cr~lorado. The Piceance Site is approximately 63 miles north-northeast of Grand Junction, 22 miles wcst-southwest of Meeker, and 29 miles east-southeast of Rangely, Colorado. Nahcolite is naturally occurring sodium bicarbonate found in association with oil shale deposits. Sodium bicarbonate solution removed from the ground at the Piceance Site will be processed into sodium carbonate/sodium bicarbonate solution, which will be transported by pipeline south to a final processing plant at the Parachute Site to be located on private property in the Parachute Creek valley (Steigers Corporation 1998). There it will be lurther processed to commercial soda ash and sodium bicarbonate products. The Piceance Creek Basin nahcolite resource is awell-documented, world-class deposit by virtue of its magnitude and quality. Reserves under American Soda's leases are estimated to be sufficient to sustain the proposed production for more than 30 years. 2.2 DISTURBANCE TYPES AND SEQUENCE The American Soda Yankee Gulch Sodium Minerals Project ("Yankee Gulch Project") will involve three main categories of disturbance areas including well fields; surface facilities; and access roads, utility corridors and the pipeline corridor. Descriptions of the activities involved For each of these categories and their associated potential surface disturbance are detailed in the Commercial Mine Plan (Steigers Corporation. 1998). The Plan addresses activities associated with the well field, surface facilities and access roads. These activities are summarized below. Erosion convol and reclamation /revegetation measures For the utility corridors and the pipeline corridor will be addressed in a separate document. 2.2.1 Well Field (Mining Panels) The staged development of the solution mining well field over the first 30 years of mining is described in the Commercial Mine Plan (Steigers Corporation 1998). Wells will be laid out on a grid within each proposed mining panel area. Sources of disturbance within each mining panel will include development of the well pads for each solution mining well. the system of access roads within each mining panel, electrical power system and the solution collector and American Soda. L.L.P. 2- I Soil Conservarron. Fsosion and Sediment Conlml. Reclarnation, and Rcvcgclalion Plan Uclober 28. 1998 Revrud April 9, 1999