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PCPC Re: SUP2001-001 AR2002 4/10/2002 Page 4 12. The design of improvements to the chosen haul route and their construction shall be completed prior to the applicant beginning hauling operations out of the pit, except for any material used in the construction of the improvements. MINING OPERATION PLAN The applicant proposes to dry mine approximately 20 acres, in two 10-acre phases, from the permitted site, over atwo-year period. The primary minerals produced will be sand and gravel, for use as construction aggregates. Direction of mining will initially proceed from west to east, and progress down to the shale bedrock. Topsoil wilt be stockpiled along pit perimeters for later use in reclamation. Overburden material, estimated at 65,000 cubic yards, will either be used as base course, or used to flatten slopes. Initially, topsoil and overburden will be stripped using scrapers or dozers, and stockpiled. The aggregate will be mined with front-end loaders, which will excavate the material and deposit it onto conveyors. Conveyors will then transport the material to the Cortner Pit 2 site, for processing with a portable screen•and crusher.°-A} maximum of~ 100 truck loads per day would be hauled from the site. The operation will not affect groundwater quality on and off the site. On-site speed limits will be used to control fugitive dust emissions, and city water will be used for dust control operations along the roads and stockpiles. The applicant estimates approximately 2500 gallons per week, using a 2500 water truck, will be needed for dust suppression. Noise levels from the operation will fall within requirements for industrial zoning. RECLAMATION PLAN The entire pit area will be reclaimed as rangeland, for the beneficial end use. All reclamation slopes will be mined at a slope of 3H:1 V. As the mining progresses, topsoil will be replaced at a depth of three to six inches, and reseeding with grassland species will occur. Throughout reclamation, the operator will periodically contact the Soil Conservation District for soil tests and fertilizer recommendations, and maintain effective weed control. Attachments: Exhibit 1 Letter of Request, d. 1/8/01 Exhibit 2 General Location Map Exhibit 3 Mine Site Map Exhibit 4 Map of Adjacent Operations & Haul Routes Exhibit 5 Comments, Public Works,-d.-3/26/2002- -~- - ~-,-- - - c: Erick Reckentine, Land Manager Rusty Cochran, Operations Manager Dave Benbow, Public Works Jim Stevens, Mined Land Reclamation Division Jim Stevens, Division of Minerals and Geology