1982-11-16_INSPECTION - C1981017

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s Section II (continued) Page 2 3) The AIK pond was filled with waste material and snow at the time of the inspection. The dewatering pipe was not visible. Some water was seeping through the dewatering pipe. This must be cleaned as soon as possible. 4) The berm along the north end of the preparations plant bench needs to be built up almost directly north of the PIK sediment pond. Evidently, the berm was pulled down when removing a piece of equipment. In addition, the junk along the berm and below should be cleaned up. 5) A small pile of coal waste near the head of the perimeter ditch must be cleaned up. 6) The concrete ditch along Coal Creek near the wash plant must be cleaned out. 7) Water was ponding in the ditch below the main coal stockpile and some material had sloughed into the ditch. This ditch must be cleaned so it drains properly. 8) Sediment must be cleaned from the bus garage pond (008) . 9) The outlet from pond 007 was partially covered by sediment. Runoff water had entered the pond at the outlet end, resulting in deposition on the dewatering device. The drainage must be repaired so water enters the pond on the site opposite the dewatering pipe and the sediment must be cleaned from the pond. 10) The berm along the south side of the old strip pit had been pushed down during snow removal. This berm must be rebuilt to avoid excessive erosion of the slope below the bench. 11) The edge of the mine #2 bench must be regraded or a berm built between the concrete barriers so runoff doesn't flow over the slope below. 12) The ditch on the north side of the mine #3 bench must be cleaned. 13) In the process of stockpiling mine #2 coal, the protective berm below was over- topped and a small amount of coal spilled over into the undisturbed area. There appeared to be no environmental problems associated with this since the surface below the berm slopes toward the stockpile. To insure there are no problems with runoff from this area, the operator should build a straw dike near the southeast end of the pile. In addition, no additional coal is to be stockpiled on the south side of the stockpile and, once the stock- piled coal is shipped, the coal must be cleaned from the undisturbed area. 14) The upper two sediment ponds below the preparations plant and refuse pile need to be cleaned as soon as possible. The upper pond was almost completely filled and the second pond was approximately half-filled. 15) The loadout sediment pond was observed to have a milky substance in it. Mr. Bowman stated in a phone conversation on May 24, 1982, that the substance was a latex compound used to protect the coal from blowing off a unit train. The operator must provide the Division with information on any potential toxicities associated with this material and dispose of the material following a plan approved by the Division.