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~. EXHIBIT D Permit #M-96-049 Mining Plan -Revised 1/17/2000 Maryland Creek Ranch has a significant deposit of sand and gravel located in the alluvium of the Blue River in Summit County. The western side of the river valley is bisected by State Highway 9; [he Maryland Creek Ranch deposit lies on the west side of the highway. The deposit will be mined we[ and dry through the use of a dragline and front-end loader. Initially the topsoil and overburden will be stripped by scrapers and dozers. This material will be deposited separately in stockpiles on the side of the mining operation. Later it will be used in reclaiming and sloping the lakeshore. With in-progress reclamation, it is [he intent of the operator to replace the overburden and topsoil in its final location quickly. As the mining progresses, the operator will replace [he overburden and topsoil by spreading it on the lakeshore slopes. With the stripping done, a dragline or front-end-loader will commence the excavation of the mineral. The sands and gravels will be deposited into a windrow behind the dragline. They will stay [here for two to four days to allow water to drain out of the material. Excess water from the windrow will drain back into the excavation. A front-end loaders will carry the material to a field conveyor, which will transport the material to the processing plant area. The field conveyors and or feeder will be relocated frequently during mining to minimize the travel distance for the loader. The mining operation will create permanent lakes. The Vendette, Maryland, and Old Whetstone Creek channels will be preserved on dikes located between the lakes. In addition, the ditch along State Highway 9 will be preserved within a 50-foot setback frotn [he highway right-of--way. Stormwater detention ponds will be constructed in the process plant area to temporarily hold runoff. Parts of the meadow not yet involved in mining will continue as grazing land for horses and cattle. Therefore, the buildings in the ranch headquarters will be maintained. Mining Cell 1 was the first area to be mined. Mining Cell 1 may be mined in two stages and contains more than one pond according to Technical Revision 3 (TR3). Because of [he shorter distance to the surge pile, haul trucks were used with Cell 1 and 2 rather than a field conveyor. Each year approximately eight to ten acres of land will be mined. Thus the mining will create 8 to 10 acres of new water surface each year. An electrical power line supplying power to the ranch headquarters crosses [he meadow within Mining Cell 4. The operator has relocated [he power line to along State Highway 9 and up the ranch access road. The first 3 years of our timetable is actual and reflects the renaming and sequence of mining of the cells according to approved Technical Revisions 1, 2 and 3. D-l