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Conveyor Corridor <br /> Concrete foundations which supported) the overland conveyor and associated stacking equipment are <br /> the dominate structures in this work area. Within the conveyor corridor, there is a large rectangular end <br /> foundation at the western terminus of the corridor, and approximately sixty (60) pairs of cylindrical <br /> support foundations along the corridor length. The end foundation must be demolished to a depth of at <br /> least four feet (4') below ground surface. The cylindrical foundations must be demolished to the extent <br /> that any remnants are a minimum of four feet (4') below ground surface after completion of Task 4, Earth <br /> Work. A number of corrugated metal pipe culverts are in place along the corridor. These shall be <br /> excavated and removed to the main facilities area for removal by others. The rubble produced from the <br /> demolition process shall be removed to the Stockpile B back wall for disposal by burial. <br /> Rubble must be placed at the base of the Stockpile B back wall so that it is covered by a minimum of <br /> four feet (4') of earthen materials upon completion of Task 4, Earth Work. <br /> Stockpile B <br /> Concrete foundation materials are in place along the western and northern portions of the stockpile <br /> vicinity, and adjacent to the facility on both sides of Road A. An appreciable volume of foundation <br /> materials is in place at the former location of the <br /> coal stacker facility near the north central portion of the facility. All foundations within the Stockpile B <br /> facility must be demolished to the extent that any remnants are a minimum of four feet (4') below ground <br /> surface after completion of Task 4, Earth Work. <br /> Rubble must be placed at the base of the Stockpile B backwall so that it is covered by a minimum of four <br /> feet (4') of earthen materials upon completion of Task 4, Earth Work. <br /> Stockpile M <br /> Little, if any, concrete materials exist within the Stockpile M work area. Any materials observed or <br /> encountered in the facility during completion of Task 4, Earth Work, must be demolished and removed <br /> from the work area to the designated disposal site south of the Wash Plant. <br /> Warehouse Vicinity <br /> An appreciable volume of concrete, asphaltic, cinder block and metallic material is located within this <br /> work area. Except as specifically noted in this Invitation for Bid, all such materials will be completely <br /> excavated and removed from this work area for disposal at the Wash Plant disposal site. <br /> For ease of discussion, the Warehouse Vicinity can be subdivided into a western area and an eastern <br /> area (see Map 4, Project Area). The western area is located adjacent to, and immediately east of <br /> Stockpile M, and just north of the three sediment ponds. The eastern area is located immediately east <br /> of the three sediment ponds, and extends to the intersection of the warehouse road and Road A. <br /> Western Work Area <br /> A conveyor transfer building and associated foundations, a twelve feet (12') diameter coal conveyance <br /> tunnel located west of and uphill from the conveyor transfer building, and a water tank foundation are <br /> the most significant structures located at the western work area. <br /> 8 <br />