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Ouray Silver Mines Inc.Technical Revision 09 TablesTable 8. Waste Rock Leachate (SPLP) QualityAnalyte Units Pre-exisiting Waste Rock 6/27/2014 6/27/2014 7/19/2016Aluminum mg/L 0.13 0.26 0.73Antimony mg/L 0.0114 0.0033 0.0009Arsenic mg/L 0.0024 0.0012 0.0032Barium mg/L 0.0074 0.1822 0.0078Beryllium mg/L ND ND ND <br />Bicarbonate as CaCO3 mg/L 35 24 13.8 <br />Boron mg/L ND ND 0.01 <br />Bromide mg/L 0.185 1.97 ND <br />Cadmium mg/L ND ND ND <br />Calcium mg/L 12.6 14.2 9.6 <br />Carbon, total organic (TOC) mg/L ND ND ND <br />Carbonate as CaCO3 mg/L 11 15 27.5 <br />Chloride mg/L ND ND ND <br />Chromium mg/L ND ND ND <br />Cobalt mg/L ND ND 0.00009 <br />Conductivity @25C umhos/cm 116 133 91.5 <br />Copper mg/L 0.0065 0.0016 ND <br />Fluoride mg/L 0.69 0.17 0.11 <br />Hardness as CaCO3 mg/L 33 38 25 <br />Hydroxide as CaCO3 mg/L ND ND ND <br />Iron mg/L ND ND 0.09 <br />Lead mg/L 0.0018 0.0004 0.0011 <br />Lithium mg/L ND ND ND <br />Magnesium mg/L 0.4 0.5 0.3 <br />Manganese mg/L 0.0112 0.008 0.0038 <br />Mercury mg/L ND ND ND <br />Molybdenum mg/L 0.059 0.0033 0.0007 <br />Nickel mg/L ND ND ND <br />Nitrate mg/L 0.08 0.17 0.06 <br />Nitrate/Nitrite as N mg/L 0.08 0.17 0.06 <br />Nitrite as N mg/L ND ND ND <br />Nitrogen, ammonia mg/L ND ND 0.64 <br />pH units 8.7 8.8 9.5 <br />pH measured at C 23.8 23.8 23.3 <br />Phosphorus, ortho dissolved mg/L ND ND ND <br />Phosphorus, Total mg/L ND ND ND <br />Potassium mg/L 3.7 3.5 1.5 <br />Residue, Filterable (TDS) mg/L 60 70 58 <br />Residue, Non-Filter (TSS) mg/L ND ND ND <br />Selenium mg/L 0.0002 0.0005 ND <br />Silica mg/L 4.3 4.6 7.7 <br />Silver mg/L 0.00019 0.00018 ND