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flexibility that will allow normal changes to the mine layout and <br />production in the future without necessitating major equipment <br />changes. <br />9.2.1.2.6 Flume water System <br />A low pressure water system is normally used to provide fluming <br />water for the development areas and where necessary to provide <br />additional dilution water to aid fluming in specific main roadways, <br />where flume gradients are very low and on turns. <br />9.2.1.2.7 Slurry Pumping System <br />In a mine or part of a mine that has coal located above drainage <br />level, (approximately 1/3 of NCIG's recoverable coal is above <br />drainage level) a slurry pumping system is not required. Other <br />equipment requirements in these areas are fairly simple, such as <br />auxiliary and main fans and flume. <br />• <br />9.2.2 Conservation of Coal <br />It is NCIG's intention to ma=:imize the exaraction of coal found <br />within the area and any additional economically minable coal which <br />has been located within the coal lease boundary and would be mined <br />in future years of the operation. <br />Historically, the production ~tnd extraction levels in hydraulic <br />mines have proven to be better than those experienced in conven- <br />tional room and pillar or long wall mines. Maximizing extraction <br />insures that further impact on the land through future mining and <br />reclamation operations will be unlikely. <br />NCIG - Coal Ridqe #1 4-8 ABC/1145/910509 • <br />