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18 . 30C temperature and 6 . 7 to 8 .0 S.U. pH. Quality of active areas <br /> ranged from 762 to 1045 umhos conductivity, 9 . 9 to 15. 30C temperature <br /> and 6 . 9 to 8 . 0 S.U. pH. <br /> Mine water inflow was collected in a sump and discharged from <br /> the mine by pumping . Table 3 presents average daily discharge from the <br /> mine (calculated from daily pump records and averaged for each month) . <br /> Figures 3 and 4 graphically display this hydrograph for 1987 and 1988 . <br /> Average daily discharge ranged from 71 , 136 gpd during May 1987 to <br /> 152, 250 gpd during November 1987 . The mine inflow study estimated 123 <br /> gpm flowing into the mine which relates to 177, 120 gpd. Calculated <br /> discharges were somewhat lower than the estimated inflow (Table 3) . <br /> -65- <br />