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2.03.3(9) UNDERGROUND DEVELOPMENT WASTE <br />Due to the position of the coal seams an the property, slopes <br />or shafts will not be constructed. The mine will be opened by <br />drift portals. The waste from the construction of the <br />overcasts or cleaning falls will be put on the refuse disposal <br />area, designed for coal waste. <br /> <br />• <br />480 <br />