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Preparation of the utility borehole pad will involve topsoil recovery and stockpiling, grading and <br />compaction to establish a level pad working area, excavation of a temporary incised mud pit, and <br />placement of gravel surfacing material, as necessary, to control dust and sediment from the pad area. The <br />temporary incised mud pit will be approximately 10 x 10 x 5 feet, and is designed and sized to meet normal <br />drilling fluid requirements and contain direct, incident precipitation. The drill pad will be graded so all <br />other precipitation and runoff flows away from the mud pit and is controlled by the temporary sediment <br />control measures established prior to disturbance. In the event that fluid requirements exceed the capacity <br />of the temporary mud pit, Aorta-pits (skid-mounted steel tanks) would be utilized or excess fluids and cuttings <br />would be pumped to a truck for transport to the existing l8-Right cuttings pit. If unanticipated groundwater flows <br />are encountered during borehole drilling operations, portable pumps will be used to continuously dewater <br />the mud pit, with discharge to either one of the utility boreholes, which would route the water back into the <br />abandoned underground mine workings or to a tanker truck. Facility construction details and configuration <br />are illustrated by the utility borehole components shown on Maps EX16E-M1 and M2 in Exhibits 16E. <br />MROS-198 2.05.45-6c 08/29/05 <br />