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• <br />2.05.3 <br />• PR -12 <br />�9 PpRovED <br />II116/,� <br />Gob will also be generated from the preparation plant. The principal <br />additives used in the preparation plant are magnetite and flocculent. The <br />plant is designed to run as a closed circuit relative to these additives. The <br />thickener is designed to recover as much of these additives as possible. <br />There will be minor amounts of flocculent and magnetite that bind with the <br />gob produced by the plant. No chemical sludge will be generated by the <br />preparation plant. <br />Refuse disposal will utilize the refuse bin at the preparation plant, a 35 -ton <br />haul truck and the existing refusal disposal area. These will be used to move <br />gob to the refusal disposal area. It is anticipated that haulage and disposal <br />operations will not be significantly different than those used at the present <br />time to dispose of run -of -mine rock gob. The haul road is designed as an all - <br />weather road. When weather conditions prevent proper spreading and <br />compaction of the gob material in the refuse disposal area, it is dumped in <br />small piles until it can be spread and properly compacted. <br />The annual volume will be variable based on run -of -mine coal quality. <br />Approximately 30% of coal production will be washed with a projected 30% <br />reject rate. Therefore, based on an annual production rate of 5,000,00 tons, <br />450,000 tons of reject will be generated per year. It is anticipated that in <br />most years, the percentage of washed coal will be less than 30% and the <br />average annual reject generated will be about 200,000 tons per year. <br />The permanent gob pile was designed by WESTEC. See Volume IV for <br />design details. A new coal mine waste pile was designed by J. E. Stover & <br />Associates. See Volume IX for design details. <br />Non -Coal Waste Storage <br />Non -coal waste will be stored at the portal level. Three concrete walls will be <br />constructed to form the storage area. The walls will form a u- shape. The <br />storage areas will be approximately 20 -feet wide, 30 -feet deep and the walls <br />will be 6 -feet high. Commercially available dumpsters may be used in lieu of <br />the concrete structure. The typical refuse stored in these areas will be paper, <br />lumber, pipe, supplies, cardboard etc. A local contractor will periodically <br />remove the non -coal waste from the storage areas and haul the refuse to the <br />Delta County landfill. Non -Coal waste may also be stored in dumpsters <br />which are located: 1) near the office /dry; 2) near the shop /warehouse and; 3) <br />near the material storage areas. <br />2.05-62- 2/10 <br />