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<br />Calculations indicate that if the mine continues to produce <br />at its current 5,000 tons per year production rate, the pit would <br />last well beyond the foreseeable future. If demand for sand will <br />continue to rise, additional pit area would not have to be brought <br />into production until the larger, older area is depleted. Only <br />gravel will continue to require additional disturbed area, since <br />the gravel in this area is thinly layered. <br />The existing pit already includes the settling ponds necessary <br />for its operation as a closed circuit. As new excavations under- <br />mine these existing settling ponds, they will be resited in pre- <br />viously disturbed areas. As previously discussed, the material <br />which settles out of the discharged water will be stock piled for <br />later use. At the present time the settling ponds in the area <br />are of approximately one acre total. <br />In summary, the mine presently expects to only expand its <br />operations by approximately five acres in the foreseeable future. <br />The existing pit, which was disturbed prior to the Mined Land <br />Reclamation Act, will continue to be mined. <br />Please refer to the attached soil profile and also the Soil <br />Conservation Service, Soil Survey for thickness and type of <br />overburden in the affected area. <br />