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realigned. The ditch was previously moved to access the reserves that existed in the <br />Crusher/Stockpile Area. The ditch will be moved closer to the permit boundary to allow <br />maximum extraction. To limit water infiltration the ditch will be lined with a layer of <br />bentonite topped with a layer of pea gravel. Another limiting factor for extraction will <br />the towers of the Colorado Ute Walcott Transmission Line. The pit must not come <br />within 50 feet of the towers. Stockpiling and ditch work will occur within this azea, but <br />will have no effect on the stability of the towers. Once the ditch has been moved the <br />mining area will be stripped of the 3-10" of topsoil. This topsoil is extremely cobbly <br />and difficulty in salvaging is expected. However, some loss of topsoil will not effect the <br />reclamation plans. All topsoil will be stockpiled to the south and east of the pit walls as <br />shown in Map C-2. A isolation berm will also be built using raw gravel or topsoil along <br />the northern border of the pit to isolate the disturbed azea from the river channel and <br />undisturbed slopes. This isolation berm will be approximately 3.0' high with 2.OH:1.OV <br />sideslopes. This berm will be seeded and mulched with the same seed mix described for <br />the slopes in the reclamation plan. No overburden has been experienced in previous <br />mining at this site. <br />After preparation of the area is completed, raw bank material will be removed and <br />brought directly to the crushing plant or stockpiled in the Crusher/Stockpile Area prior to <br />being processed. The material is expected to be excavated by front-end loaders, dozers, <br />and trucks. The operation will be dry due to the gravel terrace being above the water <br />table. All slopes will be mined to a 2:1 slope as per the original permit application. To <br />control dust, water trucks will be used during dry periods and periods of heavy use. The <br />pit bottom will remain 10' above the normal river channel. This will place all operations <br />above the 100 yeaz flood plain. If enough flat area is available the crusher may be moved <br />into the future mining area in order to optimize operations. In this case new ponds will <br />be excavated to serve as settling ponds for the wash plant. All material in this area will <br />be mined by the end of 2006. It is expected that approximately 25,000 tons of asphalt <br />and 15,000 cubic yards of concrete will be sold from this site in 2003-2004. Some road <br />base or other aggregate may also be sold. This reduction is due to the Calhoun/Eaton pit <br />being mined out during 2003-2004 before it is sold. The excavation of the final reserves <br />of the Montgomery pit will occur in 2005-2006. The estimated reserves of this area is <br />178,972 cubic yards. Expected sales from this site for those years is projected to be <br />60,000 cubic yards of cement and 100,000 tons of asphalt. Other aggregate materials <br />will be sold such as road base. Some importing of materials may occur during this phase <br />to supplement the reserves, although primarily the reserves will be used. Once <br />Montgomery Pit 5/03 <br />