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Riley Gravel Pit <br />Mining Method to be Employed <br />Exhibit D <br />Mining Plan <br />The New pit is approximately 19.09 acres in size. The potenflal mineral material reserves of rock and soil <br />are 260,000 cubic yazds. Approximately 15,000 cubic yards will be removed a year. <br />The maximum disturbed area of the pit shall be approximately 16.5 acres, with an excavation depth to be <br />approximately 70' at a maximum. The overburden stockpile at present prior to conversion is <br />approximately 6,000 yds, with an expected overall stockpile at the end of mining to be 16,500 yds. The <br />topsoil stockpile at present is approximately 4,500 yds. With and expected overall stockpile at the end of <br />mining to be 9,800 yds. Approximately 3,500 yds will be hauled in to complete reclamation. <br />The maxim seam thickness to be mined will be 70'. The pit area receives 20" of precipitation a year. <br />Surface water is generally not present in the permit area. The mining operation will not intersect any <br />sources of ground water. During operations, the pit will be bermed with material piles or topsoil piles to <br />contain any overland flow from storm events. <br />The mine life is approximately ten (10) years. Due to the small staging azea and the pit azea there will be <br />limited sequential reclamation during operation. As mining progresses to the northeast, the staging area <br />will also shift to the northeast Reclamation work will begin at the southwest End of the project azea and <br />progress towazd the east as mining progresses and as space allows. <br />Mining equipment will consist of one crasher with a capacity of 105 tons per how and usually one front- <br />end loader and one crawler tractor. The crawler tractor will push material across the pit where i[ will be <br />loaded by a frontend loader into the crusher. Crashed material will be stockpiled at the west end of the pit. <br />Typically no more than twelve truckloads will be hauled per day. <br />A steel gate with warning signs will be placed at the entrance to the pit to restrict access to unauthorized <br />personnel. The pit will be patrolled on a regular basis to inspect for damage and to remove litter and illegal <br />dumping. Jackson County Weed Control will control all noxious weeds. No inoperable equipment or <br />equipment not related to the mining operation will be stored at the site. <br />