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HENDERSON DEVELOPMENT COMPANY Annual Report - 80-110 September, 1984 Description• The Henderson Gravel Extraction operation is located in Adams County at the intersection of U.S.85 and Nome Street. The property is owned by the Henderson Development Company, but is being mined by the Siegrist Construction Company operating under the name of Colorado Sand and Gravel on a royalty basis to the Henderson Development Company. This report is intended to summarize the mining and reclamation activities which have been undertaken on this site for the annual reporting period ending September 9, 1984. Mini.na and Reclamation Activities: The total surface acreage involved in this property is approximately 36 acres with mining to take place in four phases as follows. Phase 1 consisted of 2.5 acres at the southern portion of the site; this area has been mined and is presently being partially used for gravel and soil stockpiles. Phase 2A comprises the north 28 acres of the site, and this phase involved mining to the water line; this mining phase was completed this last year. Phase 2B comprises the same 28 acres as Phase 2A, except this phase involved mining below the water line; this mining is being undertaken now. During this next year the operator hopes to complete approximately half of the Phase 2B area, with the balance the year after. Phase 3 consists of the middle 5.5 acres where the plant and accessory facilities are located, and will be not be completely mined until after Phases 2A and 2B are completed in two to three years. This area has not been mined to date, but has been disturbed since the mining equipment(crusher, etc.), gravel stockpiles and some of the dirt stockpiles are located in this area. The reclamation activities to date consist mainly of contouring where possible in the completed phases. Because of the smallness of the site, permanent revegetation will not be undertaken until the completion of most mining on the property. Therefore the reclamation activities for this year consist of some sloping of the Phase 2A mining area to the 3 to 1 requirement of the final reclamation plan. During this next year as Phase 2B is completed this sloping will be finished.