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State Reg. <br />2.05.318) COAL PROCESSING AND NON-COAL PROCESSING WASTES <br />There are no coal processing facilities (Rule 4.11.41 on the Seneca II Mine permit area. All of the <br />coal is loaded on a "raw" basis and transported to the power plant by private contractor. <br />Non-coal wastes, including garbage, abandoned mining machinery, lumber and other landfill <br />acceptable materials generated during surface mining activities shall be placed and stored in a <br />controlled manner in a designated portion of the permit area Isee Exhibit 12-1, Operations Plan, <br />for location of the solid waste disposal sitel. Placement and storage will ensure that leachate <br />and surface runoff do not degrade surface or groundwater, that fires are prevented, and that the <br />area remains stable and suitable for reclamation and revegetation compatible with the natural <br />surroundings. Operation of the disposal site will be conducted in accordance with all local, state <br />and federal requirements. <br />• <br />The solid waste disposal facility is located in a final pit in the south-central part of the permit <br />area, which has had approximately 20 feet of overburden spoils backfilled into the bottom of the <br />pit before placement of any solid waste materials. This overburden backfiill raised the wastes <br />above the water table surface and exposed coal in the final highwall, thus protecting ground <br />water from degradation. <br />Proposed surface topography in this area indicates surface water drainage will be directed <br />through the disposal site. This portion of the proposed drainage through the site is at the upper <br />end of watershed and is small. Although the amount of surface water runoff should be small, all <br />efforts will be made to minimize the drainage length through the disposal area and create the <br />drainage way on the southwesterly side of the site. SCC will also place the more durable <br />material available in the fill in the drainage way to minimize erosion. These actions will ensure <br />that surface runoff will not degrade surface water due to the landfilled wastes. Considering the <br />above actions and the available material in the immediate area of the disposal site, a minimum of <br />eight feet of final backfill material over the wastes should be adequate. <br />J <br />TR-37 12-52 Revised 04/05 <br />