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TABLE 54 <br />ENERGY MINE N0. 1 PIT WATER QUALITY <br />Average Values <br /> 1979 1980 1981 1982 1983 <br />Temp, oC 12.43 12.41 12.37 14.13 10.28 <br />pH, s.u. 7.65 7.17 7.17 7.33 7.47 <br />E.C., umho/cm 2140.00 1946.76 1854.21 2168.44 1794.00 <br />Ca, mg/1 324.25 378.52 --- --- --- <br />Na, mg/1 146.75 68.85 --- --- --- <br />Mg, mg/1 183.63 195.82 --- --- --- <br />K, mg/1 18.50 18.91 --- --- --- <br />504, mg/1 1643.75 1685.30 --- --- --- <br />Ci, mg/1 22.75 16.15 --- --- --- <br />C03, mg/1 3.25 2.50 --- --- --- <br />HC03, mg/1 266.63 212.75 --- --- --- <br />TDS, mg/1 2948.10 2626.76 2608.45 2863.06 2757.92 <br />TS S, mg/1 23.56 13.50 20.41 22.94 28.17 <br />Total Fe, mg/1 0.04 0.03 0.61 2.54 0.59 <br />Tota] Mn, mg/1 0.31 0.10 0.13 0.22 0.18 <br />