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Ouray Silver Mines Inc.Technical Revision 09 TablesTable 9. Tailings Leachate (SPLP) QualityAnalyte Units Current Groundwater Standard Tailings February 2015Aluminum, dissolved mg/L 5 0.56Antimony, dissolved mg/L Report 0.0083Arsenic, dissolved mg/L 0.1 0.012Barium , dissolved mg/L Report 0.0588 <br />Beryllium, dissolved mg/L 0.1 ND <br />Bicarbonate as CaCO3 mg/L Report 28.4 <br />Bismuth mg/L -- ND <br />Boron, dissolved mg/L 0.75 0.01 <br />Bromide mg/L -- ND <br />Bromide mg/L -- 0.434 <br />Cadmium, dissolved mg/L 0.001 ND <br />Calcium, dissolved mg/L Report 14.6 <br />Carbon, total organic (TOC) mg/L -- ND <br />Carbonate as CaCO3 mg/L Report ND <br />Chloride mg/L 2 ND <br />Chromium, dissolved mg/L 0.1 ND <br />Cobalt, dissolved mg/L Report 0.00013 <br />Conductivity @2SC umhos/cm Report 189 <br />Copper, dissolved mg/L 0.00865 ND <br />Fluoride mg/L 2 0.24 <br />Hardness as CaCO3, dissolved mg/L Report 39 <br />Hydroxide as CaCO3 mg/L Report ND <br />Iron, dissolved mg/L 1 0.29 <br />Lead, dissolved mg/L 0.0435 0.0199 <br />Lithium, dissolved mg/L -- ND <br />Magnesium, dissolved mg/L Report 0.7 <br />Manganese, dissolved mg/L 1.62731 0.1082 <br />Mercury, dissolved mg/L 0.001 0.0002 <br />Molybdenum, dissolved mg/L Report 0.0413 <br />Nickel , dissolved mg/L 0.05024 ND <br />Nitrate mg/L Report 1.09 <br />Nitrate/Nitrite as N mg/L 100 1.09 <br />Nitrite as N mg/L Report ND <br />Nitrogen, ammonia mg/L -- 0.8 <br />pH s.u. 9 9 <br />Phosphorus, ortho dissolved mg/L Report 0.01 <br />Phosphorus, Total mg/L -- 0.04 <br />Potassium, dissolved mg/L Report 5.9 <br />Residue, Filterable (TDS) mg/L 186.25 110 <br />Residue, Non-Filter (TSS) mg/L Report ND <br />Selenium, dissolved mg/L 0.0046 0.0008