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Laboratories, Inc. <br />2773 Downhill Drive Steamboat Snrinas. CO 80487 (800) 334 -5493 <br />Star Mine Operations LLC ACZ Sample ID: <br />L12887 -02 <br />Project ID: Date Sampled: <br />06120113 08:20 <br />Sample ID: MW -2 Date Received: <br />0621113 <br />Sample Matrix: <br />Waste Water <br />Wet Chemistry <br />REPIN.02.06.05.01 * Please refer to Qualifier Reports for details <br />Page 5 of 29 <br />Alkalinity as CaCO3 <br />SM2320B- Titration <br />Bicarbonate as <br />1 <br />62 <br />mg /L <br />2 <br />20 <br />06/25/13 0:00 <br />khw <br />CaCO3 <br />Carbonate as CaCO3 <br />1 <br />U <br />mg /L <br />2 <br />20 <br />06/25/13 0:00 <br />khw <br />Hydroxide as CaCO3 <br />1 <br />U <br />mg /L <br />2 <br />20 <br />06/25/13 0:00 <br />khw <br />Total Alkalinity <br />1 <br />62 <br />mg /L <br />2 <br />20 <br />06/25/13 0:00 <br />khw <br />Cation -Anion Balance <br />Calculation <br />Cation -Anion Balance <br />6.7 <br />% <br />07/12/13 0:00 <br />calc <br />Sum of Anions <br />2.8 <br />meq/L <br />0.1 <br />0.5 <br />07/12/13 0:00 <br />calc <br />Sum of Cations <br />3.2 <br />meq/L <br />0.1 <br />0.5 <br />07/12/13 0:00 <br />calc <br />Chloride <br />SM4500CI -E <br />1 <br />U * <br />mg/L <br />1 <br />5 <br />07/03/1316:10 <br />mpb <br />Conductivity @25C <br />SM251oB <br />1 <br />370 umhos /cm <br />1 <br />10 <br />06/25/13 23:17 <br />khw <br />Cyanide, total <br />M335.4- Colonmetricw /distillation <br />0.5 <br />0.028 <br />mg /L <br />0.003 <br />0.01 <br />07/02/13 15:21 <br />mpb <br />Cyanide, WAD <br />SM4500 -CN I- Colorimetric <br />0.5 <br />0.012 <br />mg /L <br />0.003 <br />0.01 <br />07102/13 14:45 <br />mpb <br />w/ distillation <br />Fluoride <br />SM450OF -C <br />1 <br />0.3 B * <br />mg/L <br />0.1 <br />0.5 <br />06/28/1312:29 <br />abm <br />Hardness as CaCO3 <br />SM2340B - Calculation <br />140 <br />mg /L <br />1 <br />7 <br />07/12/13 0:00 <br />calc <br />Lab Filtration (0.45um) <br />M200.7/200.8 <br />1 <br />06/27/13 12:00 <br />scp <br />& Acidification <br />Lab Filtration (glass <br />SOPWC050 <br />1 <br />06/25/13 12:17 <br />khw <br />fiber filter) <br />Nitrate /Nitrite as N <br />M353.2 - H2SO4 preserved <br />10 <br />13.6 <br />mg /L <br />0.2 <br />1 <br />07/03/13 0:57 <br />pjb <br />pH (lab) <br />SM4500H+ B <br />pH <br />1 <br />8.1 H <br />units <br />0.1 <br />0.1 <br />06/25/13 0:00 <br />khw <br />pH measured at <br />1 <br />19.0 <br />C <br />0.1 <br />0.1 <br />06/25/13 0:00 <br />khw <br />Phosphorus, ortho <br />M365.1- Automated Ascorbic Acid <br />1 <br />0.02 B * <br />mg /L <br />0.01 <br />0.05 <br />06/21/1321:54 <br />pjb <br />dissolved <br />Residue, Filterable <br />SM2540C <br />1 <br />240 <br />mg /L <br />10 <br />20 <br />06/26/13 10:47 <br />dcw <br />(TDS) @180C <br />Residue, Non- <br />SM2540D <br />1 <br />55 * <br />mg /L <br />5 <br />20 <br />06/26/13 11:00 <br />mss3 <br />Filterable (TSS) <br />@105C <br />Sulfate <br />D516.02- Turbidimetric <br />5 <br />73.0 <br />mg /L <br />5 <br />30 <br />07/02/1318:14 <br />mpb <br />TDS (calculated) <br />Calculation <br />182 <br />mg /L <br />10 <br />50 <br />07/12/13 0:00 <br />calc <br />TDS (ratio - <br />Calculation <br />1.32 <br />07112/13 0:00 <br />calc <br />measured /calculated) <br />For Cadmium by ICPMS, <br />the value in the MDL <br />field is the client's requested reporting limit. <br />A "U" qualifier denotes cadmium was not detected above this level. <br />REPIN.02.06.05.01 * Please refer to Qualifier Reports for details <br />Page 5 of 29 <br />