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Standard <br />(mg /kg) <br />Analysis <br />77000 <br />Aluminum <br />31 <br />Antimony <br />0.39 <br />Arsenic <br />15000 <br />Barium <br />160 <br />Beryllium <br />70 <br />Cadmium and Compounds <br />120000 <br />Chromium (III) <br />1.2 <br />Chromium (VI) particulates <br />23 <br />Cobalt <br />3100 <br />Copper and compounds <br />55000 <br />Iron , <br />400 <br />Lead (inorganic) <br />0.0061 <br />Lead (tetraethyl) <br />9200 <br />Manganese <br />13 <br />Mercury (elemental) <br />23 <br />Mercury compounds <br />1500 <br />Nickel (soluble salts) <br />390 <br />Selenium <br />390 <br />Silver <br />5.5 <br />Thallium <br />390 <br />Vanadium <br />23000 <br />Zinc <br /><3pCi/g1 <br />Combined Radium 226 and <br />Radium 228 <br /><30pCi /g' <br />Uranium <br /><3pCi/g <br />Thorium <br />Friday, October 26, 2012 <br />Constituent Standards for Mine Tailing <br />Beneficial Use <br />1 -Above background concentration <br />Page 3 of 3 <br />