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ACZ Laboratories, Inc. <br />2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334 -5493 <br />Star Mine Operations LLC ACZ Project ID: L12888 <br />L12888 -02 WG346909 Arsenic, total <br />M200.8 ICP -MS <br />B7 <br />Target analyte detected in prep / method blank at or above <br />L12888 -01 WG346694 Silica, total <br />M200.7 ICP <br />ZS <br />Digestion procedures have the potential to trigger silica <br />polymerization and precipitation, leading to low biased <br />WG346694 Silica, total <br />M200.7 ICP <br />ZS <br />results. Silica chemistry is complex and polymerization <br />kinetics are unpredictable. Dissolved and/or add soluble <br />silica analyses may provide more accurate measurements. <br />WG346994 Chloride <br />SM4500CI -E <br />M1 <br />Matrix spike recovery was high, the recovery of the <br />associated control sample (LCS or LFB) was acceptable. <br />WG346890 Cyanide, total <br />M335.4 - Colorimetric w/ <br />RA <br />Relative Percent Difference (RPD) was not used for data <br />distillation <br />validation because the sample concentration is too low for <br />SM4500CI -E <br />RA <br />accurate evaluation (< 10x MDL). <br />WG346903 Cyanide, WAD <br />SM4500 -CN I- Colorimetricw/ <br />RA <br />Relative Percent Difference (RPD) was not used for data <br />distillation <br />validation because the sample concentration is too low for <br />WG346890 Cyanide, total <br />M335.4 - Colonmetric w/ <br />RA <br />accurate evaluation (< 10x MDL). <br />WG346650 Fluoride <br />SM450OF -C <br />RA <br />Relative Percent Difference (RPD) was not used for data <br />validation because the sample concentration is too low for <br />WG346903 Cyanide, WAD <br />SM4500•CN I- Colorimetric w/ <br />RA <br />accurate evaluation (< 10x MDL). <br />WG346196 Phosphorus, ortho dissolved <br />M365.1 - Automated Ascorbic <br />M2 <br />Matrix spike recovery was low, the recovery of the <br />Add <br />associated control sample (LCS or LFB) was acceptable. <br />WG346650 Fluoride <br />M365.1 - Automated Ascorbic <br />RA <br />Relative Percent Difference (RPD) was not used for data <br />Add <br />validation because the sample concentration is too low for <br />accurate evaluation (< 10x MDL). <br />WG346196 Phosphorus, ortho dissolved <br />M365.1 - Automated Ascorbic <br />ZU <br />Analysis date/time preceeds filter date/time. A portion of <br />Add <br />sample was filtered and analyzed prior to the creation of a <br />M365.1 - Automated Ascorbic <br />RA <br />Filter workgroup. <br />WG346442 Residue, Filterable (TDS) @180C <br />SM2540C <br />RA <br />Relative Percent Difference (RPD) was not used for data <br />validation because the sample concentration is too low for <br />M365.1 - Automated Ascorbic <br />ZU <br />accurate evaluation (< 1 Ox MDL). <br />WG346565 Residue, Non - Filterable (TSS) @105C <br />SM2540D <br />RA <br />Relative Percent Difference (RPD) was not used for data <br />validation because the sample concentration is too low for <br />WG346565 Residue, Non - Filterable (TSS) @1o5C <br />SM2540D <br />RA <br />accurate evaluation (< 1 Ox MDL). <br />L12888 -02 WG346909 Arsenic, total <br />M200.8 ICP -MS <br />B7 <br />Target analyte detected in prep / method blank at or above <br />acceptance limit. Sample value is > 1 OX the concentration <br />in the method blank. <br />WG346694 Silica, total <br />M200.7 ICP <br />ZS <br />Digestion procedures have the potential to trigger silica <br />polymerization and precipitation, leading to low biased <br />results. Silica chemistry is complex and polymerization <br />kinetics are unpredictable. Dissolved and/or aad soluble <br />silica analyses may provide more accurate measurements. <br />WG346994 Chloride <br />SM4500CI -E <br />M1 <br />Matrix spike recovery was high, the recovery of the <br />associated control sample (LCS or LFB) was acceptable. <br />SM4500CI -E <br />RA <br />Relative Percent Difference (RPD) was not used for data <br />validation because the sample concentration is too low for <br />accurate evaluation (< 1 Ox MDL). <br />WG346890 Cyanide, total <br />M335.4 - Colonmetric w/ <br />RA <br />Relative Percent Difference (RPD) was not used for data <br />distillation <br />validation because the sample concentration is too low for <br />accurate evaluation (< 10x MDL). <br />WG346903 Cyanide, WAD <br />SM4500•CN I- Colorimetric w/ <br />RA <br />Relative Percent Difference (RPD) was not used for data <br />distillation <br />validation because the sample concentration is too low for <br />accurate evaluation (< 10x MDL). <br />WG346650 Fluoride <br />SM450OF -C <br />RA <br />Relative Percent Difference (RPD) was not used for data <br />validation because the sample concentration is too low for <br />accurate evaluation (< 1 Ox MDL). <br />WG346196 Phosphorus, ortho dissolved <br />M365.1 - Automated Ascorbic <br />M2 <br />Matrix spike recovery was low, the recovery of the <br />Add <br />associated control sample (LCS or LFB) was acceptable. <br />M365.1 - Automated Ascorbic <br />RA <br />Relative Percent Difference (RPD) was not used for data <br />Add <br />validation because the sample concentration is too low for <br />accurate evaluation (< 10x MDL). <br />M365.1 - Automated Ascorbic <br />ZU <br />Analysis date/time preceeds filter date/time. A portion of <br />Acid <br />sample was filtered and analyzed prior to the creation of a <br />Fitter workgroup. <br />WG346565 Residue, Non - Filterable (TSS) @1o5C <br />SM2540D <br />RA <br />Relative Percent Difference (RPD) was not used for data <br />validation because the sample concentration is too low for <br />accurate evaluation (< 10x MDL). <br />REPAD.15.06.05.01 <br />Page 38 of 45 <br />