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4.1 l COAL PROCESSING WASTE <br />Colowyo does n-ot have a coal preparation facility, therefore the requirements of certain parts <br />of this Section are not applicable to Colowyo. <br />d.ll.l Burning <br />(Not Applicable) <br />4.11.2 Burned Waste Utilization <br />(Not Applicable) <br />4.1 1.3 Return to Underground Workings <br />(Not Applicable) <br />4. ] 1.4 Dis~osa] of Noncoal Waste <br />Noncoal, nonhazardous solid waste, such as garbage, used tires, etc., is stored in a controlled <br />manner around the operation in various waste receptacles and waste locations. Periodically <br />the waste is disposed of in the backfill area of the pit and covered with a minimum twenty- <br />five feet of overburden material. No waste is allowed on the bottom of the backfill area. <br />• Nonhazardous used oil and grease, flammable liquids, etc, are stored in a tankfarm facility <br />located near the shop facilities. <br />Colowyo's status as a conditionally exempt small quantity generator of hazardous materials <br />essentially indicates that Cotowyo generates negligible amounts of hazardous waste. The <br />limited amount of hazardous waste is handled according to applicable State and Federal <br />requirements. <br />Waste water from toilets, sinks, and showers will be disposed of by means of septic tanks, <br />underground leach fields and evaporation ponds. <br />Portable self-contained toilets will be located around the operation. These portable toilets <br />will be serviced periodically and the waste hauled from the mine for disposal. <br /> <br />4.11-1 Revision Date: 8/29/97 <br />Revision No.: TR-42 <br />