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designed to hold one million gallons. The tank will rest on a reinforced concrete foundation <br />consisting of a spread- footer, stem wall, and slab floor supported by concrete pilings. Preparation <br />of the tank foundation area will involve grading, compaction, and excavation for the support pilings <br />and spread- footer. Following site preparation, the reinforced concrete pilings and footers will be <br />formed, and poured, followed by the reinforced concrete pad and stem wall. The steel tank will be <br />fabricated in sections which will be placed and anchored on the stem wall. A water -tight liner <br />system will complete the tank installation. The pump house will include valves and manifolds to <br />control the water to the operation. <br />Utility and Compressor Building — These structures are steel frame buildings 140'x40' and <br />30'x40'. The larger building will house air compressors, an air drying system, a nitrogen system, a <br />reverse osmosis water system and a water filtration system. These systems will feed several 8" <br />boreholes, approximately 125 deep, within the building to provide the underground mine with <br />water, compressed air and nitrogen. <br />The smaller building will serve as a motor control center (MCC) building and contain various types <br />of electrical equipment to control and monitor motors in and around the mine portals. <br />Waste Handing and Recycle Area — This facility will be a three -sided building with a concrete <br />pad (100 x150 x 0.5 feet) and walls (250 feet long, 8 feet high, and 6 inches thick), with a metal <br />roof. <br />Fuel Storage Area - The fuel storage areas will be located on the surface facilities pad, as shown <br />on Map 2.05.3 -MIA, Mine Facilities Map (South End). These facilities will include a 20,000, 2- <br />10,000, and a 5,000 gallon diesel tank, a 2,000 gallon unleaded gasoline tank, a 2,500 gallon <br />magnesium - chloride tank, three -2,000 gallon used oil tanks, and a storage area for drums or totes. <br />All tanks will be of double - walled construction, which satisfies applicable requirements for <br />secondary containment. Tanks will be placed on concrete pads, and metal posts will be strategically <br />placed to protect the tanks. Adequate concrete or lined secondary containment will be provided for <br />drums and totes. Fueling stations will be provided for diesel and gasoline, with automatic shutoffs <br />to minimize the potential for spills during fueling, and to minimize the volume of any spill that may <br />occur. The tank foundations and pad will contain approximately 120 cubic yards of concrete. <br />Oil Storage Area — The oil storage area will be located on the surface pad as shown on Map 2.05.3 <br />MIA. A 2,500 gallon magnesium- chloride tank, three -2,000 gallon oil tanks, and a 20,000 gallon <br />propane tank will set on a concrete pad. All tanks will be of double - walled construction, which <br />satisfies applicable requirements for secondary containment, and metal posts will be strategically <br />placed to protect the tanks. The tank foundations and pad will contain approximately 120 cubic <br />yards of concrete. <br />Temporary Transfer and Portal Belt — There will 100' of 60" portal belt that discharges to a 700' <br />of 54" transfer belt. Structure support will require approximately 51 yd of concrete. The transfer <br />belt will discharge to the temporary radial stacker. <br />Radial Stacker — The radial stacker will place coal on the north coal storage pad. The radial stacker <br />will consist of 150' of 48" belt. The discharge height to the storage pile will be 40'. <br />TR -O/ 2.05 -15 Revision 4/12 <br />9 <br />