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Timetable <br />The mine will involve 7 major phases, each approximately 170 to 200 acres in size. The <br />yearly mined area will range in size from 15 to 25 acres. From boring logs taken at the <br />site, an average yearly mined area will contain approximately 1.8 million tons of resource, <br />if mined to a full 60 foot depth. The expected life for a phase would be a minimum seven <br />to ten years, requiring a resource demand for rock of 500,000 cubic yards per year. <br />The mine phasing is laid out so that mining begins at the north end of the properly <br />adjacent to the railroad. Mining begins away from the processing plant and moves <br />towards the Arkansas River. Mining between phases will be continued dependent upon <br />construction resource demand. In this case, stockpiled waste, subsoil, and topsoil <br />materials will be graded to the reclaimed cropland or shoreline condition or dozed into <br />each of the lakes for phases previously mined, leaving no stockpiles being mined and on- <br />site and no unreclaimed cropland or shoreline areas. <br />The overall operation sequence would indicate set up of the plant site within the first year <br />- of operation and ensuing mining which will irnolve a total active operation I'rfe of 50 to 60 <br />years. <br />Subsurface Geoloav <br />From test holes drilled at the site in June and August, 1993, it is known that various sand <br />and gravel materials are present at the site from depths of approximately 6 feet to 60 plus <br />feet with typical rock diameters increasing with depth. The sand and gravel resource is <br />underlain by shale and sandstone. <br />D-5 <br />