2010-01-21_PERMIT FILE - M2009082 (11)

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through 5C. Each conveyor crossing will be enclosed in 100-foot spans, approximately 17 feet in height over the county roads. A conveyor will also cross the Cache La Poudre River. The conveyor bridges are composed of steel; the footings are anchored in concrete. Details for the conveyor bridges can be found in Exhibit C. Upon completion of mining operations, the conveyors will be removed and all areas affected by the conveyors will be restored to their original condition. There is also the potential for a conveyor tunnel to be constructed under "O" Street if "O" Street is constructed prior to the completion of mining of Phase 5C. All existing on-site roads are shown on Exhibit C, Pre-Mining Plan. Any existing gravel access roads shared with ongoing oil and gas production or farming activities will remain in place once mining and reclamation are complete. The roads will be maintained by the operator to provide required access to the various activities on the property. Existing roads are typically 12' to 15' wide, gravel access lanes. Some of the roads may be relocated to accommodate mining activities. Relocated access lanes will be constructed with 6" of native sand and gravel from the floor of the mine and remain in place once mining and reclamation are complete. The main access to the site will be off of County Road 25 on the west side of Phase 1A. There will be a paved loop lane into the site as shown and dimensioned on page 4 of Exhibit C. Mine Schedule The Parsons Mine operation will process approximately 750,000 - 1,000,000 tons of aggregate per year. At this rate, Lafarge anticipates mining and reclaiming the site in approximately 20 years. The table on the following page outlines the anticipated mine schedule by phase. As previously stated, this schedule is just an estimate due to the fact that the rate of mining and overall life of the mine is dependent upon demand and market conditions. Phase Mine Area (in acres) Projected Time to Mine (in years) Phase 1 A 37.5 Duration of the Mine' Phase 1B 22.6 Duration of the Mine' Phase 1C 12.7 Duration of the Mine' Phase 2 36.9 6± Phase 3 6.6 1f Phase 4A 5.7 1± Phase 4B 13.7 2± Phase 4C 33.7 4± Phase 5A 3.7 1± Phase 5B 10.6 2± Phase 5C 4.8 1± TOTALS 188.5 20t 1 Phases 1A and 1B are projected to be active for the duration of the mine because the overburden in these phases will be stripped starting in the first year of the mining operation and then the plant site (crushing and washing facilities) will be constructed in this area. Therefore, the sand and gravel in Phases 1 A and 1 B won't be mined until the end of the mining operation. Parsons Mine DRMS 112 Reclamation Permit Application Page D4 of DS