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Ms. Erica Crosby, Division of Minerals and Geology March 23, 2005 ~~ Page 9 22. Please list and locate on the applicable exhibit all structures that will be constructedcOhvs'heR E s-s~u R c e s, t t c (i.e. plants, offices, trailers, tanks, etc...J and provide their associated dimensions and composition in order to accurately estimate a cost for removal in the reclamation bond estimate. Any structures, conveyors, tanks, etc. used or constructed by the applicant or operator will be assets owned by that corporation and should not be included in the reclamation cost estimate. The concrete foundations for several structures could be included in the reclamation cost estimate. The proposed operators provided the following estimate: $50,000 for the Concrete Batch Plant $50,000 for Premier Asphalt Plant $50,000 for Asphalt Plant $50,000 for the Processing Plant $40,000 for Conveyor Crossings at WCR 6'/< and WCR 8 $10,000 for Truck Scale $10 000 for Scale Attendant Office $260,000 for Foundation Removal Rule 6.4.5 Exhibit E- Reclamation Plan 23. The applicant states that the plan is to create water storage reservoirs. However, according to the groundwater model only two of the pits will be reclaimed to water storage reservoirs and the remainder will be ponds exposing groundwater. Please clarify this discrepancy, and provide specifics on how the groundwater lakes will be reclaimed. As indicated on the Reclamation Plan Map, there will be two areas reclaimed as water storage reservoirs. The other mining areas will be used as silt/settling ponds and a fresh water pond for the life of the mine and filled and reclaimed as uplands. 24. Please state the depth in which clay will be mined in order to construct the compacted clay liner. In addition, please provide an estimated volume of clay to be excavated for each pond so that it may be included in the reclamation cost estimate. The claystone bedrock will be excavated to a depth of approximately 25 feet. Please read the response to number concern #26 below for a description of material processing, slope liner geometry and placement/compaction standards. The table below is a summary of the embankment volumes that will be extracted from the bedrock. A swell of 12 percent was assumed based on previous experience with the Denver/Arapahoe claystone. Pond Water Sfc Elevation Water Sfc Area Storage Capacity{at) Reserwir Floor (ac) Vol. of CCL (cy) (N (xres) 4:1 1 4932 _ 83.9 4, 006 46 7 , 770, 000 2 4937.5 165.8 7,501 123 1,883,500 TOTALS= 250 11,507 169 3,653,500