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MININ6 PLAN hETFIOD OF' OPERATION: The sequence of operation in the extraction of the . gravel will involve the use of front end loaders, scrapers, dozers, and trucks. 1-lowever, not all of this equipment will be used all at once. Typically, the soil is first removed using scapers and/or dozers. If the soil is most easily pushed from its natural location to the location where it will be distributed on graded land then a dozer would be used. If the distance the soil must be hauled is greater than a dozer can efficiently push the soil then scrapers are used. After the soil is removed front end loaders work the face of the exposed gravel. Depending upm circumstances either the loader directly hauls the gravel to the plant or if the distance is greater trucks can be used to haul the gravel to the plant. I-bwever, because trucking the gravel to the plant adds considerably to the cost this type of transport is avoided if at all possible. Instead, the plant is usually moved closer to the mining. Soil is replaced using a dozer or scaper. Once again which is used is dependent on the distance the soil must be moved. In most cases, the soil will be distributed on graded land when it is removed. Therefore whatever equipment is used to remove the soil is usually used to distribute it: ' ~ A water truck will be used to keep roadways and active mining areas moist 5o dust is controlled. The water truck will make several trips a day to the nearest source of purchased water, when dust control is needed. No water resource exists on the site and thus the need to haul all water. After the gravel has been processed through the crushing and screening operations, the product is then hauled to the main yard for incorporation into the various products that are sold directly from that location. The main yard is located in Pueblo near U. S, SO and Interstate 25. ON SITE PROCESSIIV6: Because of the haul distance to the main yard in Pueblo it is necessary to process the gravel on site. This processing will involve crushing, screening, and stockpiling. Processing on site produces a benefit to reclamation in that waste materials can be replaced on the mined land to produce subsoils and to fill undesirable irregularities, Initially the plant will be established at the location shown on the mining plan map. This location should serve for many years. Fbwever, when extraction operations move toward the north end of the site it will be • necessary to move the plant nearer the mining as the haul distances become too Page 6