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Coal preparation activities involve wet processing and all coal preparation <br />equipment except the coarse refuse breaker is located within the enclosed coal <br />preparation plant building. These considerations result in negligible dust emissions <br />as a result of coal processing activities. <br />Similar to other systems previously discussed, the clean coal product conveyor, <br />stoker coal stockpile, clean coal product stockpile, and clean coal reclaim system <br />offer little potential for any significant fugitive dust emissions. Within the clean coal <br />system, all conveyors are covered, all transfer points are enclosed, and stockpile <br />sizes are limited by provisions of the air emissions permits to the capacities <br />referenced in Section 2.05.3, Operations Plan. Although it is a dewatered product, <br />the clean coal still retains a significant percentage of surface moisture which limits <br />fugitive dust emissions. Due to limited stockpile capacities, stockpile turnover is <br />relatively high and there is little opportunity for significant drying or weathering of <br />stockpiled coal to occur. With limited wind velocities in the area, fugitive dust from <br />the stockpiles has never been a significant problem. <br />Refuse disposal operations involve placement of coarse and fine refuse materials <br />in a permanent stockpile. The coarse refuse materials by virtue of size and density <br />do not pose a significant problem relative to fugitive dust emissions. Also, The fine <br />refuse materials are not a significant potential dust source since the fine refuse <br />leaves the preparation plant as a dewatered filter cake product which still retains <br />significant moisture. These materials retain the properties described through <br />temporary storage in refuse hoppers, loading into rear dump trucks, haulage to the <br />permanent refuse stockpile, and placement. Following placement, some surface <br />drying does occur, however, coal refuse is placed sequentially in progressive <br />vertical lifts and completed refuse pile areas are reclaimed and revegetated as <br />soon as operationally practical following regrading. With these considerations, total <br />area of coal refuse exposed to drying and potential wind loss is very limited. <br />2.05.6 -3 Revised 4/15/96 <br />Minor Revision No. 31 <br />