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ACZ Laboratories, Inc. • • - - • - • <br /> 2773 Downhill Drive Steamboat Springs, CO 80487 (800)334-5493 0 - • • <br /> Alexco Water&Environmental Inc. ACZ Project ID: L50224 <br /> METHODACZ ID WORKNUM PARAMETER QUAL DESCRIPTION <br /> L50224-01 NG467432 Antimony,dissolved M200 8 ICP-MS Q5 Sample received with inadequate chemical preservation. <br /> Additional preservation performed by the laboratory. <br /> Arsenic,dissolved M200 8 ICP-MS Q5 Sample received with inadequate chemical preservation. <br /> Additional preservation performed by the laboratory. <br /> WG467448 Chloride SM4500CI-E RA Relative Percent Difference(RPD)was not used for data <br /> validation because the concentration of the duplicated <br /> sample is too low for accurate evaluation(<1 Ox MDL) <br /> WG467704 Cyanide,WAD SM4500-CN I,E-Colonmetric wl RA Relative Percent Difference(RPD)was not used for data <br /> distillation validation because the concentration of the duplicated <br /> sample is too low for accurate evaluation(<10x MDL) <br /> WG467432 Lead,dissolved M200.8 ICP-MS Q5 Sample received with inadequate chemical preservation <br /> Additional preservation performed by the laboratory. <br /> WG467743 Mercury,total M245.1 CVAA M2 Matrix spike recovery was low,the recovery of the <br /> associated control sample(LCS or LFB)was acceptable. <br /> WG467855 Phosphorus,total M365.1-Auto Ascorbic Acid RA Relative Percent Difference(RPD)was not used for data <br /> (digest) validation because the concentration of the duplicated <br /> sample is too low for accurate evaluation(<1 Ox MDL) <br /> WG467312 Residue,Non-Filterable(TSS)@105C SM2540D RA Relative Percent Difference(RPD)was not used for data <br /> validation because the concentration of the duplicated <br /> sample is too low for accurate evaluation(<1 Ox MDL) <br /> WG467432 Silver,dissolved M200 8 ICP-MS Q5 Sample received with inadequate chemical preservation. <br /> Additional preservation performed by the laboratory. <br /> WG467347 Sulfate D516-02/-07-Turbidimetnc M3 The spike recovery value is unusable since the analyte <br /> concentration in the sample is disproportionate to the spike <br /> level.The recovery of the associated control sample(LCS <br /> or LFB)was acceptable. <br /> WG467432 Thallium,dissolved M200 8 ICP-MS Q5 Sample received with inadequate chemical preservation. <br /> Additional preservation performed by the laboratory. <br /> Uranium,dissolved M200.8 ICP-MS Q5 Sample received with inadequate chemical preservation. <br /> Additional preservation performed by the laboratory. <br /> REPAD.15.06 05 01 <br /> L50224-1910040958 Page 24 of 33 <br />