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inch size) coal. This washing will only be used as necessary, <br />since coal losses up to loo are common with this type of equipment. <br />NCIG has made the conscious recision not to wash the coal, but <br />rather accept minor increase in the ash content of the sales <br />product. Accepting a small product prig decrease due to the <br />increase in ash content is more than offset by realizing an <br />increased sales volume. <br />NCIG intends to construct an emergency slurry holding structure <br />(basin) at the inlet to the process building (dewatering plant), to <br />be used in the event of a circuit shutdown. The basin will be <br />sized to retain the total active slurry system (solids only) in <br />case of plant shut-down. Flui~js will be removed through a baffle <br />system or overflow and delivered to Pond A. The basin will be <br />located upstream of the preparation/dewatering plant. In addition, <br />a 60 foot long inclined sump has been excavated off of Tunnel No. <br />2 for emergency in-mine storac)e of the slurry fluid and solids. <br />The slurry tank is described in more detail in Section 4.3.4.3. <br />High pressure, high capacity pumps will be used to provide both the <br />water pressure and volume required by the underground monitor and <br />coal Pluming. The pumps will consist of 3 sF;id-mounted B00 hp <br />electric pumps operated in series. The high pressure water will be <br />piped from the pumps to the underground operation via an 8-inch <br />schedule 80 steel pipeline. The pumps will be an integral part of <br />the pumping, sizing, dewatering, and preparation Facilities, as <br />shown in Figure 4.2-3. <br />As described in Section 4.3.2, coal will be slurried by gravity <br />from the working areas in the mine to the main tunnels, where <br />fabricated flumes or polyethylene pipe will convey the coal slurry <br />to the exit portal. Within the portal area, either steel or thick- <br />walled plastic pipe will convE~y the slurry from the mine to the <br />dewatering plant. The pipe will be sized for the maximum <br />• <br />\J <br />NCIG - Coal Ridge #1 4-24 ABC/1195/910509 • <br />