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EXHIBIT D-2 <br /> MINING PLAN EXHIBIT D <br /> 1. General Mining Plan <br /> The property boundary has been surveyed on site and the permit area will be surveyed prior to <br /> any site disturbance. Map C-2 shows the mining plan. <br /> Primary access to the property is along D Road from 32 Road(US Hwy 141)east to 32 1/z Road. <br /> The haul route from the pit will use an existing access point and maintenance easement utilized by <br /> Grand Valley Drainage District and another gravel extraction operation(M.A. Concrete on land <br /> leased from Clifton Sanitation District)along the 33 Road drain. The access point is located at the <br /> southwestern corner of the site, where the access road intersects 32%Road, approximately 340' <br /> north of the intersection with D Road. The permit boundary allows direct access to D 1/2 Road. An <br /> independent traffic impact study analyzed sight distances at this access point and found them to be <br /> adequate. Mesa County Transportation and Engineering departments wish to modify the D %z and <br /> 32 1/2 Road intersection south of the present location to improve sight distances. United <br /> Companies has deeded land to Mesa County to assist in this endeavor. This area is outside the <br /> permit boundary and is shown on Map C-2. <br /> The gravel zone is approximately 20 to 30 feet thick in an alluvial deposit of the Colorado River <br /> and is overlain by soil of approximately 12"thickness and overburden ranging from 4 to 16 feet. <br /> The deposit will be mined in a three pit sequence, beginning with the easternmost pit, which is <br /> called Pit 1. Pit 2 is located adjacent to the west and Pit 3 is located in the southwest corner. <br /> Ultimately,the entire site will be reclaimed with the mined areas creating two lakes,providing <br /> wildlife habitat and aesthetic benefit to the area. Pit 1 is to be mined in an area with very few <br /> adjacent houses and generally surrounded on three sides by undeveloped vacant land. A current <br /> gravel extraction operation and remnants of abandoned sewage treatment lagoons exist to the <br /> south of the permit area. These aeration ponds were taken out of service a few years ago when <br /> Clifton Sanitation District constructed their current treatment facility. <br /> Otter Creek Pit December 12 D-1 <br />