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MINING PLAN EXHIBIT C (CONT) <br /> Of the 9 . 99 acres ± in the permit area, approximately 9 . 06 <br /> acres ± will be mined, 0 . 93 acres ± will be setbacks around the <br /> mined area or access road. These setbacks are shown on the Exhibit <br /> E-1 - Mining Plan Map and are 15 feet wide around the mine . They will <br /> be used as growth medium storage areas . <br /> The mine will operate year around with periods of inactivity <br /> such as when adverse weather conditions exist or the market <br /> demand for material is low. We cannot estimate how long these <br /> periods of inactivity will be, but estimate may last up to 18 <br /> months or more . <br /> We expect to have 9 . 06 acres ± or less disturbed at any one <br /> time . The bond estimate presented on Page 31 shows the amount of <br /> land we will disturb at a worse case scenario . As mining pro- <br /> gresses we expect to have no more that 500 linear feet of working <br /> face which would need to be shaped at any one time . The mine <br /> face will be worked in one of two ways , either it will be mined <br /> at a 3 : 1 rate or worked as a vertical face . If a vertical face <br /> is worked then at the end of each mining session the highwall <br /> will be graded 3h to lv so no slope grading will be necessary if <br /> mining ends prematurely. The floor of the mine will be graded as <br /> shown on Map Exhibit E-2. <br /> Little or no water will be used at the site . If dust <br /> control water is used, it will be purchased from the City of Yuma <br /> or another approved source and hauled to the site . We will make <br /> sure it is an Office of the State Engineer approved source . We <br /> expect to need from 1 to 1 . 5 acre feet of water per year for dust <br /> control . <br /> If a processing plant is used, it will be temporarily placed <br /> on a level area on the north end of the mine so the plant site <br /> and stockpile area will be out of the way. Mining will be done <br /> by loading material from the working face into stockpiles or <br /> trucks , with a frontend loader or track hoe . As the deposit <br /> deepens we may begin to push material from the upper reaches of <br /> the mine to the floor using a dozer. The RECLAMATION MAP - E-2 <br /> shows how we think the area will look when mining ends and <br /> reclamation is complete . <br /> On-site equipment may include, but is not limited to, a <br /> motor grader, front-end loaders, a dozer, conveyors, a crushing <br /> and screening plant, dump trucks and a water truck. Processing <br /> may be done onsite to build material stockpiles that will be <br /> removed as needed. <br /> 29 <br />