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TABLE 12 <br />Percentage of Milliequivalents per Liter for Major Ions, <br />Surface Ya[er Average for Each Ya[er Year <br />Senate II-Y Mine <br />____Y____CA ____MG__^______NA+K ___ S04 CL XC03+C03 TDS <br />sY-szY-sc7 <br />1994 46.60 40.63 12.77 41.30 2.16 56.54 652.00 <br />1993 42.93 44.06 13.01 41.11 2.19 56.69 569.33 <br />1992 42.95 39.00 18.05 41.42 2.60 ~ 55.98 676.00 <br />1991 44.55 39.55 15.90 35.96 5.33 58.71 642.00 <br />1990 28.90 25.43 45.57 40.50 1.37 58.13 791.50 <br />1987.89 44.96 42.34 12.69 52.93 2.01 45.06 697.00 <br />TDS range 1987-89: 620 to 768 mg/l <br />NPDES 006 <br />1994 36.59 51.04 12.36 72.93 3.73 23.34 988.67 <br />1993 37.23 51.64 11.12 72.49 3.82 23.68 830.67 <br />1992 38.36 49.64 11.99 69.76 8.06 22.18 891.33 <br />1991 37.98 48.32 13.70 70.90 4.47 24.63 728.00 <br />1990 40.50 47.56 11 .9L 75.93 1.14 22.93 595.OD <br />1986-89 25.52 62.67 11.82 78.32 2.02 19.66 1969.00 <br />n 7DS range 1986-89: 696 to 4426 mg/l <br />N <br />W <br />No[e: Values for 1986-89 ere from baseline Site SY-52Y-SG6 <br />SY-S2Y-FG1 <br />1994 34.51 38.24 27.25 60.16 2.48 37.36 1133.33 <br />1993 38.89 43.92 17.19 53.42 3.44 43.14 765.33 <br />1992 34.09 39.12 26.79 60.33 2.95 36.73 974.00 <br />1991 37.38 38.79 23.83 54.85 4.50 40.65 936.67 <br />1990 35.67 37.03 27.30 63.77 1.89 34.34 1049.33 <br />1979-89 38.21 44.38 17.41 59.90 2.33 37.86 942.18 <br />TDS range 1979-89: 290 to 1632 mg/l <br />NPDES 005 <br />1994 No flow <br />1993 40.62 48.62 10.76 87.32 0.99 11.69 1094.00 <br />1990-1992 25.57 53.53 20.90 84.45 1.01 14.54 1788.40 <br />TDS range 1990-1992: 292 to 6004 mg/l <br />Note: Values for 1990-1992 ere from baseline Site SY-S2Y-SGB <br />