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i <br />EXHIBIT D -MINING PLAN <br />• <br />This amendment proposes to add 132.95 additional acres to the original permit. Approximately <br />107 acre: will be to the west of the current permit, on the south side of the abandoned railroad <br />grade. Approximately 9.75 acres will be added to the southern edge of the existing permitted <br />area to include areas being used for materials processing. Approximately 16 acres will be added <br />to the ea;stem side of the current permit to be used as an access for trucks and/or a conveyor to <br />transport material from the Schell Pit, which is being permitted concurrently with this operation. <br />Dry Mining will be done on the property as has been done on the original permit. The <br />dewateruig operations will be covered under the current approved NPDES permit that is held by <br />the operator. <br />Mining will progress from west to east, beginning at the northwest comer. Afield conveyor <br />system will transport the materials across the railroad right-of-way to the processing area which <br />will remain in the southeast comer of the original permit area. The operator may choose to use <br />off road haul trucks to transport the materials to the processing site. The haul road would follow <br />the approximate alignment of the field conveyor. <br />Mining of this new area will be conducted in the same fashion as before. Topsoil and <br />overburd<:n will be stripped and stockpiled separately, and the pit will be dewatered to facilitate <br />the extraction of the resource. Topsoil, overburden and resource depths in the new area are very <br />similar to that found in the original area. The average depth of the pit will be 14 - 15 feet. <br />Limited exploration by hole boring has been made on the areas described as Phase III and Phase <br />IV on the mining plan map. These areas may not appear to wntain aggregate resource in <br />commercially attractive amounts, and these areas may not be mined at all. The option for <br />additional exploration and expanding the mining operation into the Phase III and Phase IV areas <br />exist, and for the purposes of this application, it is assumed that mining will occur in these areas. <br />Areas in Loth Phase II and Phase 111 include a gas well, well tank, pipeline, and access road. C <br />& M Con-ipanies will pursue an agreement with the gas companies to allow mining within 50 feet <br />of all gas related improvements. Until the agreement is obtained, all mining operations will stay <br />200 feet away from all gas related improvements. All gas improvements will be maintained <br />throughout all mining and reclamation phases. <br />Irrigation water to the land south of the permitted area is provided from the west and will not <br />be disturbed by mining operations. A ditch for irrigation water to return to St. Vrain Creek will <br />be maintained during all mining and reclamation operations. <br />Two lakes will be created on the property in this amendment. At the request of the landowner, <br />the lakes will be lined prior to refilling using stockpiled material at the curcent mining site, and <br />materials found on this site. <br />2 <br />