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for further dewatering. The water will be recovered for return to <br />the hydraulic mining circuit and the solids recovered and added to <br />the coal product stockpile. ~ <br />4.3.3.4.3 Slurry Tank <br />A tank (slurry tank or basin) will be used to hold raw coal (mine <br />run), and water. The base will be prepared with a layer of clay or <br />other synthetic membrane. Concrete will be poured over the base as <br />footings for a steel tank or a full concrete basin constructed <br />below grade. The tank can be washed down to sumps or the solids <br />can be removed physically by loader. Any solid material removed <br />from the basin, will be sent to the preparation plant for <br />processing. Refer to Section 4.3.4.3 for a detailed discussion of <br />size and capacities of the slurry tank. <br />9.3.3.4.4 Coal Storage <br />The coal storage pile will be constructed on a sub-base of clay, <br />compacted to reduce overall permeability. A layer of sand or <br />gravel will be placed on top of the .clay for protection during <br />loading and unloading. A curb, using the same materials as the pad <br />will be constructed on the perimeter of the pad to maintain control <br />of any fluids which may accumulate at the base of the coal pile. <br />Water which does accumulate in this area will be pumped back to the <br />preparation plant. With virtually no hydraulic pressure on the <br />liner, the clay liner should prevent significant impacts to the <br />environment. <br />9.3.3.4.5 Coarse Refuse (Temporary Storage) <br />The temporary coarse refuse storage area will only be used during <br />mine development and when production of waste rock temporarily <br />exceeds the ability to feed back into the product stream. Since <br />the processing plant is designed as a closed loop, the only rock <br />NCIG - Coal Ridge #1 4-35 ABC/1145/910801 <br />