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MINE INFLOW STUDY <br /> In November , 1988 a mine inflow study was conducted to <br /> determine the quantity and quality of water flowing into the mine . No <br /> new point sources were identified at the New Elk Mine during the 1988 <br /> survey , however, three existing points were eliminated and six new <br /> points were identified in recently mined areas of the Golden Eagle <br /> Mine . Areas which were examined included all active and inactive <br /> underground mine workings. Figures 1 and 2 present the mapping results <br /> of each point source inflow ( faults, fractured roof, fractured floor, <br /> exploration drill hole, etc. ) and each area wide inflow (drainage from <br /> seals to abandoned mine workings; areas of weeping coal faces, roof, or <br /> floors; unsealed mine areas; etc. ) that were encountered during the <br /> survey. <br /> Golden Eagle Mine <br /> At the Golden Eagle Mine, sixteen sources have been <br /> identified in the 1988 mine inflow survey . Table 1 presents the <br /> location, probable water source and estimated gallons per minute (gpm) <br /> for each of these sources. Major sources were measured volumetrically <br /> while seepage and weeping faces were estimated. A total of 163.0 gpm <br /> inflow was estimated, of which 160.0 is routed to the discharge pumps . <br /> This relates to 45 . 4 gpm measured during the 1987 survey. <br /> Approximately 125 gpm is related to the fault system encountered during <br /> 1 early 1988 while 21 . 5 gpm is from the air shafts, the slope and drill <br /> holes (sources 2, 6 , 7 , 8 , 9 , 14 and 15) and the remainder is from <br /> seepage originating in the coal seam. <br /> Representative water quality of the inflow was measured . <br /> Table 2 presents the temperature, conductivity and pH of each source. <br /> Quality ranged from 12. 0 to 16 .8 temperature, 283 to 1430 conductivity, <br /> and 7. 0 to 8 .7 S.U. pH. <br /> -63- <br />