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Appendix A <br /> Full Analytical Characterization of Leach Solution from SWDC Procedure <br /> Units Sample <br /> Analysis Rougher Concentrate Cleaner Concentrate Heavy Metal US EPA Allowable Limits <br /> NM-218964-1 NM-218964-2 <br /> Mercury CV ug/L 2.9 4.1 Mercury 200 ug/L <br /> ICP-26-Digest Ag mg/L <0.05 <0.05 Silver 5.0 mg/L <br /> ICP-26-Digest Al mg/L 3.14 <0.05 <br /> ICP-26-Digest As mg/L 0.09 <0.05 Arsenic 5.0 mg/L <br /> ICP-26-Digest Ba mg/L 0.42 0.35 Barium 100.0 mg/L <br /> ICP-26-Digest Be mg/L <0.01 <0.01 <br /> ICP-26-Digest Bi mg/L <0.05 <0.05 <br /> ICP-26-Digest Ca mg/L 215.2 6.48 <br /> ICP-26-Digest Cd mg/L <0.05 0.06 Cadmium 1.0 mg/L <br /> ICP-26-Digest Co mg/L 0.11 <0.05 <br /> ICP-26-Digest Cr mg/L <0.05 <0.05 Chromium 5.0 mg/L <br /> ICP-26-Digest Cu mg/L 0.07 <0.05 <br /> ICP-26-Digest Fe mg/L 2.18 <0.05 <br /> ICP-26-Digest Ga mg/L <0.05 <0.05 <br /> ICP-26-Digest K mg/L 46.2 2.45 <br /> ICP-26-Digest Mg mg/L 96.72 0.84 <br /> ICP-26-Digest Mn mg/L 15.5 0.89 <br /> ICP-26-Digest Mo mg/L <0.05 <0.05 <br /> ICP-26-Digest Na mg/L 1617 2.1 <br /> ICP-26-Digest Ni mg/L 0.06 <0.05 <br /> ICP-26-Digest Pb mg/L <0.05 0.53 Lead 5.0 mg/L <br /> ICP-26-Digest S mg/L 26.39 11.33 <br /> ICP-26-Digest Sb mg/L <0.05 <0.05 <br /> ICP-26-Digest Sc mg/L <0.05 <0.05 <br /> ICP-26-Digest Se mg/L <0.05 <0.05 Selenium 1.0 mg/L <br /> ICP-26-Digest Si mg/L 4.67 1.07 <br /> ICP-26-Digest Sn mg/L <0.05 <0.05 <br /> ICP-26-Digest Sr mg/L 2.84 0.11 <br /> ICP-26-Digest Ti mg/L <0.05 <0.05 <br /> ICP-26-Digest TI mg/L <0.10 <0.10 <br /> ICP-26-Digest V mg/L <0.05 <0.05 <br /> ICP-26-Digest Zn mg/L 0.83 0.81 <br /> pH 5.18 4.5 <br /> Hardness mg/L 934.55 29.9 <br />