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To accommodate the large amount of slurry produced from the washed coal an additional Thickener Tank and pipeline <br /> will be installed in 2018. The new Thickener Tank will be located on the West side of the wash plant facilities and east <br /> of sediment pond D.The Tank will be 90 feet in diameter and approximately 14 feet tall. The Foundation supporting <br /> the Thickener Tank will consist of a concrete pad supported by approximately 108 twelve inch pilings driven 20 <br /> feet into the ground. During this addition pond D will be modified by reducing the east side to accommodate <br /> sufficient room for the new Thickener tank and installation of a pre sump to help settle out any sediment that could <br /> flow from the washplant facilities. In addition to the Thickener tank, a clarified water tank, a Deaeration tank, and <br /> a 40' x 30' out building enclosing clarified water and thickener pumps will be installed surrounding the new <br /> Thickener tank. A new thickener injection line consisting of double walled HDPE pipe with the outside pipe being <br /> 12 inches and the inside pipe being 8 inches will be installed to assist in pumping the thickener underflow to <br /> designated thickener underflow boreholes. <br /> MR18-311 2.05-29.1 09/21/18 <br />