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39 <br /> TABLE 6 Comparison Of Water Quality In Bedrock And Maxwell Mine <br /> Discharge <br /> MAXWELL DISC.* <br /> PARAMETER Mean Values LA 221A LA 264 LA 218A <br /> Alkalinity (CaCO3) , mg/l 609 596 615 579 <br /> Bicarbonate, mg/l 738 606 749 0 <br /> Boron 0.069 0.06 0.06 0.16 <br /> Calcium, mg/1 31 .6 1 .8 3.3 20.2 <br /> Carbonate, mg/1 2.5 59.6 0 225 <br /> Chloride, mg/l 73.3 15.0 16.0 14.8 <br /> Fluoride, mg/1 2.7 2.8 2.4 2.9 <br /> Iron (total ) , mg/1 6.13 25.9 0.27 117 <br /> Iron (diss. ) , mg/1 0.03 <0.02 0.02 <br /> Magnesium, mg/1 4.4 0.7 1 .4 <0.2 <br /> ' Manganese (total ) , mg/l 0.064 0.14 <0.01 0.88 <br /> Manganese (diss. ) mg/1 <0.009 <0.009 <0.009 <br /> pH - 7.9 8.8 8.2 11 .4 <br /> Potassium, mg/1 23.0 2.1 2.3 - 3.1 <br /> Selenium, mg/1 <0.01 <0.002 <0.002 <0.002 <br /> Sodium, mg/l 291 251 294 244 <br /> Spec. Cond. (umhos/cm) 1405 1000 1100 1600 <br /> Sulfate, mgl 52 15 88 33.7 <br /> Total Diss. Solids, mg/1 1112 775 846 891 <br /> Zinc (total ) , mg/1 0.065 1 .66 0.042 1 .14 <br /> Zinc (disc. ) , mg/1 0.03 <0.01 <0.01 <br /> *Apparently spurious sample on 2/21/80 not included <br /> 1' <br /> 1 <br />