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<br />TABLE 3 <br />AVERAGED LEACNATE CONCENTRATIONS FOR COMPONENTS OF B SEAM SIASTE <br />(in mg/1) <br />Immediate Access Slopes B Seam ~* <br />Roof & Floor ~ Shafts Average <br />Parameter Range Ave Ranee Avv Waste <br />Calcium <2.0 - 18 3.5 <2.0 - 130 49 5 <br />Magnesium <1.2 - 6.1 1.23 <1.2 - 54 8.28 1 .54 <br />Sodium 62 - 165 105 14 - 391 101 105 <br />SAR 3.2 - 22 ~ <br />(~ 1. S - 54 12.9 13 .57 r t - ~ S <br /> <br />Nitrite <br /><0.2 - <br />0.5 ,,, <br />0.19 <br /><0.2 <br />- 0.5 „~ <br />~1 ~z <br />0.19 <br />Arsenic <0.02 - 0.1 0.06 <0.02 - .06 0.03 0 .06 <br />Boron 0.24 - 1.4 0.68 0.08 - 0.9 0.24 0 .66 <br />Cadmium <0. 2 <0.2 <0 .2 <0.2 < 0.2 <br />Copper 0.4 - 0.8 0.6 0.2 - 1.6 0.64 0 .60 <br />Iron 7.4 - 17.4 11.3 3.2 - 106 13 13 <br />_ Lead 0.12 - 0.6 0.35 0.02 - 0.6 0.34 0 .34 <br />Manganese 0.4 - 1.4 0.82 0.2 - 3.0 0.83 0 .83 <br />Mercury <0. 02 <0.02 <0 .02 <0.02 <0 .02 <br />Molybdenum <0 .2 <0.2 < 0.2 <0.2 < 0.2 <br />Selenium 0.01 - 0.03 0.02 <0.002 - 0.1 0.01 0 .02 <br />Zinc 1.2 - 2.6 1.94 0.6 - 14 6.53 2 .14 <br />Sulfate <20 - 180 42 <20 - 600 109 45 <br />Conductivity <br />ll 238 - <br />7 <br />S - 649 <br />8 <br />9 346 <br />8 <br />1 750 <br />3~ 199 <br />- ~ 519 <br />6 <br />02 356 <br />7 <br />3 <br />1 S S <br />p . . . . . . ~ r <br /> ' <br />Notes: 1) B seam average waste leac~ate concen tration was calculated as <br />described in the text, based on eleven samples. All data used in <br />average calculati ons included in Attach ment 2. <br />