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<br />~ • <br />EXHIBIT D <br />Mining Plan <br />Maryland Creek Ranch has a significant deposit of sand and gravel located in the alluvium of the <br />Blue River in Summit County. The western side of the river valley is bisected by State Highway <br />9 and the Maryland Creek Ranch deposit lies on the west side of the highway. <br />The deposit will be mined wet through the use of a drag line. Initially the topsoil and overburden <br />will be stripped by scrappers. This material will be deposited sepazately in stockpiles on the side <br />of the mining operation. Later it will be used in reclaiming and sloping the lake shore, with the <br />excess dumped into the lake or sold. With in-progress reclamation, it is the intent of the operator <br />to replace the overburden and topsoil in its final location quickly. As the mining progresses, the <br />operator will replace the overburden and spread it on the lake shore slopes. <br />With the stripping done, a drag line will commence the excavation of the mineral. The sands and <br />gravels will be deposited into a windrow behind the drag line. They will stay here for one to two <br />days to allow water to drain out of the material. Excess water from the windrow will drain back <br />into the excavation. A front-end loader will carry the material to a field conveyor which will <br />transport the material to the processing plant azea. The field conveyors will be relocated <br />frequently during mining to minimize the travel distance for the loader. <br />The mining operation will create permanent lakes. The Vendette, Maryland, and Old Whetstone <br />Creek channels will be preserved on dikes located between the lakes. In addition, the ditch along <br />State Highway 9 will be preserved within a 50 foot setback from the highway right-of--way. <br />Stormwater detention ponds will be constructed in the process plant area to temporarily hold <br />runoff. <br />Parts of the meadow not yet involved in mining will continue as grazing land for horses and <br />cattle. Therefore, the buildings in the ranch headquarters will be maintained. <br />The first area to be dug is Mining Cell l . An augmentation pond will be excavated and lined so <br />water rights of the owner can be stored. The size of Mining Cell 1 on Exhibit C represents the <br />total size of an augmentation pond required at the end of mining. The need for augmentation <br />water increases as mining progresses. Therefore, Mining Cell 1 may be mined in stages and may <br />contain more than one pond. Because of the shorter distance to the surge pile, haul trucks may <br />be used with Cell 1 rather than a field conveyor. A permanent standpipe outlet will be installed <br />to release augmentation water into Old Whetstone Creek or Celi 5. <br />Each year approximately five acres of land will be mined. Thus the mining will create five acres <br />of new water surface each yeaz. <br />An electrical power line supplying power to the ranch headquarters crosses the meadow within <br />Mining Cell 3. At the appropriate time the operator will relocate the line to along State Highway <br />9 and up the ranch access road. <br />D-] <br />