2014-02-28_HYDROLOGY - M2012032 - Laserfiche WebLink

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ADZ Laboratories, Inc. 2773 Downhill Dnve Steamboat Spnngs, CO 80487 (800) 334 -5493 Star Mine Operations LLC ACZ Project ID: L16817 ACZ ID WORKNUM PARAMETER METHOD L16817 -01 WG359501 Boron, total M200.7 ICP M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable. Calcium, total M200.7 ICP MA Recovery for either the spike or spike duplicate was outside of the acceptance limits, the RPD was within the acceptance limits. Magnesium, total M200 7 ICP M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable. WG359586 Silica, total M200.7 ICP M2 Matrix spike recovery was low, the recovery of the associated control sample (LCS or LFB) was acceptable. M200.7 ICP RS RPD of matrix spikes for total or total recoverable silica is outside acceptance limits. Acceptable precision for other metals indicates silica RPD failure may be attributed to digestion - triggered silica polymerization and precipitation. M200 7 ICP ZS Digestion procedures have the potential to trigger silica polymerization and precipitation, leading to low biased results. Silica chemistry is complex and polymerization kinetics are unpredictable. Dissolved and/or acid soluble silica analyses may provide more accurate measurements. WG359610 Silver, dissolved M200.8 ICP -MS M2 Matrix spike recovery was low, the recovery of the associated control sample (LCS or LFB) was acceptable. M200.8 ICP -MS ZA Poor recovery for Silver quality control is accepted due to low Silver solubility in samples, digestates, or extracts that do not contain sufficient Hydrochloric aad. WG359461 Cyanide, total M335.4 - Colonmetric w/ RA Relative Percent Difference (RPD) was not used for data distillation validation because the sample concentration is too low for accurate evaluation (< 1 Ox MDL). WG359569 Cyanide, WAD SM4500 -CN I- Colonmetric w/ RA Relative Percent Difference (RPD) was not used for data distillation validation because the sample concentration is too low for accurate evaluation (< 1 Ox MDL). WG359706 Nitrate /Nitnte as N M353.2 - H2SO4 preserved RA Relative Percent Difference (RPD) was not used for data validation because the sample concentration is too low for accurate evaluation (< 1 Ox MDL). WG359297 Phosphorus, ortho dissolved M365 1 - Automated Ascorbic RA Relative Percent Difference (RPD) was not used for data Acid validation because the sample concentration is too low for accurate evaluation (< 1 Ox MDL). M365.1 - Automated Ascorbic ZU Analysis date /time preceeds filter date /time. A portion of Acid sample was filtered and analyzed prior to the creation of a Filter workgroup. WG359517 Residue, Non - Filterable (TSS) @105C SM2540D RA Relative Percent Difference (RPD) was not used for data validation because the sample concentration is too low for accurate evaluation (< 1 Ox MDL) WG359562 Sulfate D516 -02 - Turbidimetric M2 Matrix spike recovery was low, the recovery of the associated control sample (LCS or LFB) was acceptable. D516 -02 - Turbidimetric ZU Analysis date /time preceeds filter date /time. A portion of sample was filtered and analyzed prior to the creation of a Filter workgroup. REPAD.15.06.05.01 L16817- 1402281027 Page 41 of 49