2008-05-01_REVISION - M1973007SG (5)

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MINING PLAN conveyor of the system that feeds the processing plant. Conveyors and the plant and the stockpile area and adjacent support lands were removed from the permit in 2006. Although conveyors are used widely to transport sand, on occasion a particularly large project requires a supply of sand at a rate that cannot be provided by using conveyors alone. In those cases, truck haulage is used to supplement or even replace the conveyor transport. These are unusual circumstances though and usually the conveyor transport can keep up with demand quite easily. Processing and Sediment Discharge As stated above, the processing plant itself is not a part of the permit and need not be included in the reclamation plan. This is an industrial site and is expected to remain as such into the future. However, the processing of the sand involves washing the sand to remove the undesirable very fine particles. Often those silt and clay sized particles, if they remain in the sand,will adversely affect the capability of the sand to serve its purpose. Therefore, the discharge of the wash fines resulting from the processing is still a part of the permit as it was before removal of the processing area from the permit. Currently, all sediment is discharged into a single basin that is at the location of the former Castle Sand Pit. This Sediment Area was previously discussed in an earlier section in this exhibit. Unfortunately, this large sediment basin is nearing the end of its useful life. Not a great deal more sediment can be placed into this area before it would begin to interfere with the highway construction west of Academy Boulevard. Actually, the northern portion of the sediment basin could be expanded upward,but this presents some technical problems with containment behind a berm that would need to rest on older sediment in the basin. As a result, sediment discharge here will cease in the next year or two and a new sediment basin will be established on the east side of Academy in the South Area. Furthermore, the elevation gain from the processing plant to the current sediment basin is becoming marginal for pumping sediment laden water that high. Instead, establishing a new basin on the southern end of mined areas east of Academy will allow the reliable energy source of gravity to transport the sediment laden water, thus reducing fossil fuel derived energy consumption and saving a good deal of money. Deposition of sediment in the current sediment basin has outlived its usefulness and this area can be easily reclaimed into an attractive quasi-wetland area. It won't be a true wetland,but it will, once reclaimed, serve some of the same purposes as a wetland with regard to wildlife habitat and an attractive spot of vegetation in an otherwise highly industrialized area. To switch the sediment discharge to the east side of Academy a supply pipe will be established from the plant through either the vehicle or the conveyor tunnel to the east side. This will then turn southward reaching down to the former Phase 3e in the southwestern corner of the South Daniels Sand Pit Amendment (2008) Exhibit D Page 27 of 28