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DRAFT <br />will be stockpiled to the south of the topsoil, covering and area of about 175,000 sq.ft. and a <br />depth of 8 ft. Both of these piles are to be placed to the east, so that they aze out of the operating <br />area and will only have to be moved once. The total area of disturbance in Phase 1 is estimated <br />to be about 5.6 acres. <br />Phase 2 <br />This phase will take off from Phase 1 and continue mining to the south for a distance of about <br />X00 feet. The topsoil and overburden materials will be stockpiled in the identified areas. If the <br />estimated quantity of overburden should exceed that of the estimated area, the overburden <br />stockpile will be advanced to the south. <br />The final slopes of the east and south sides will be mined to a 2:1 backslope. Upon reclamation, <br />these slopes will be flattened to a 4:1 slope by using the overburden that has been stockpiled to <br />the east of the operation. <br />The total volume of material in Phase 2 is estimated to be 70,200 cubic yards. Of this, 7,314 <br />cubic yards is estimated to be topsoil, and 10,000 cubic yazds is estimated to be overburden. <br />These estimates are to be re-evaluated during the mining operation. Based on these figures, the <br />life of Phase 2 is estimated to be 4 yeazs. <br />Phase 3 <br />At the completion of Phase 2, the mining operation will shin to the northern berm which was <br />left in place to screen the pit from U.S. 40 traffic. This berm (identified as FINAL on the plan <br />drawings) will be "daylighted" to the north at a slope of minus 1%. This azea is about 2.8 acres. <br />The total volume is estimated to be 84,324 cubic yazds. Of this, 3,076 cubic yazds is estimated to <br />be topsoil, and 5,000 cubic yazds is estimated to be overburden. These estimates aze to be re- <br />evaluated during the mining operation. Based on these figures, the life of Phase 3 is estimated to <br />be 5 years. <br />GENERAL NOTES <br />Dust Control <br />Fugitive dust will be controlled by the use of spray bars on the crusher. A water truck will be <br />available to spray the area when there is heavy machinery use and hauling. <br />Access to this pit is via U.S. 40, a distance of about 1,000 feet. Other than being a field entrance, <br />there is no other activity on this road. The existing floor is the datum (elevation of about 6438) <br />from which the pit will be operated. Ground water is not expected to be encountered. Any <br />water encountered will likely be a direct result of runoff from snow and heavy rainfall. This <br />will be collected in a.detention (settling) pond, filtered through straw bales (certified to be <br />2 <br />