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containers housing the E-Co system will be located immediately east of the existing caustic soda and electrical control buildings. • A flow return line will carry any excess output (beyond the capacity of the treatment ponds) from the E-Co system to the existing return line that connects to the old WMD vent shaft. In order to handle both normal dischazge and any potential overflow from the treatment settling ponds, a 200-foot 12-inch bell and spigot PVC pipe will be attached to the discharge culvert from the third and final treatment pond, which formerly directed treated water through Site 115 to Fish Creek. This 12-inch PVC dischazge pipe will tie back into the southernmost Fish Creek borehole pump shaft, which is no longer in use, to carry the water back underground. Power for the E-Co system will be supplied from the adjacent substation. One powerpole was previously installed adjacent to the caustic building, an additional powerpole may be necessary, which can be used with one or more drop-lines to provide power to the E-Co buildings. Please refer to the attached Exhibit 49G drawings, depicting the layout of the proposed buildings and associated piping, as well as the supporting text for construction details. Map 24 (sheet 3 of 3) also shows the general E-Co facility location. Overland Belt Magnet (MR 02-179) Twentymile will install a magnet over the overland belt to pick tramp metal from the coal stream prior to it entering the primary crusher. The captured metal will drop from the magnet to a bin located underneath it for recycling or disposal. The magnet is in a framework constructed over the belt, and a trolley system on the framework moves the magnet in and out of position over the belt. The frame work is constructed of H-beam which is anchored to six rebaz-reinforced concrete piers drilled to bedrock. The piers are two feet in diameter, extend from 6 to 9 feet into bedrock and will extend three feet above grade. A concrete pad approximately 8 x 10 x 2 feet will be constructed under the bin to facilitate removal. The framework and pad will be constructed in a previously distwbed azea. • minim? and reclamation operations. The description shall include: (i) (A) Location: (B) Plans of the structure which describe its current condition: (C) Approximate dates on which construction of the existine structure was be ug nand completed: and (Dl A showine, includine relevant monitoring data or other evidence, whether the structure meets the design reguirements or performance standards of Rule 4 or is elieible for exemption from the desien reguirements as set forth in 2.07.6. (iil A compliance plan for each existine structure that is proposed to be modified or reconstructed for use in connection with or to facilitate the surface coal mining and reclamation operation. The compliance plan shall include: (A) Desien specifications for the modification or reconstmction of the structure to meet the reguirements of these Rules: B) A construction schedule which shows dates for beginnine and competine interim__ steps and fmal reconstruction: (C) Provisions for monitorine the structure_durine and after modification or • reconstruction to ensure that the performance standards of these Rules are met; MR06-207 2.05-65.5 04/25/06