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CALTECH Environmental Laboratories <br /> i6814 Rosecrans Avcnue, Paramount. CA 90723-3146 <br /> Telephone: (56-1) 272-2700 Fax: (562) 272-2789 <br /> QA/QC Report <br /> Method: 601013/7471 <br /> Matrix: Soil <br /> Date Analyzed: 12/11/2014 <br /> Units: mg/kg <br /> Perimeters Method LCS LCSD Spike LCS% LCSD% Limits RPD <br /> Blank Added Rec. Rec. <br /> Arsenic 0 0.863 0.841 1 86 84 70-130 2 <br /> Cadmium 0 0.924 0.909 1 92 91 70-130 1 <br /> Chromium 0 0.922 0.904 1 92 90 70-130 2 <br /> Copper 0 1 0.94 0.901 1 94 90 1 70-130 4 <br /> Lead 0 1 0.871 0.892 1 87 89 1 70-130 2 <br /> Mercury 0 0.142 0.153 0.15 95 102 1 70-130 7 <br /> Selenium 0 0.95 0.903 1 95 90 70-130 5 <br /> Silver 0 0.427 1 0.45 1 0.5 1 85 90 70-130 1 5 <br /> Zinc 0 0.866 1 .. 0.84 1 1 1 87 84 70-130 1 3 <br /> LCS: Laboratory Control Standard <br /> LCSD: Laboratory Control Standard Duplicate <br /> RPD: Relative Percent Difference of LCS and LCSD <br /> TOTALLY DEDIC:•-TED TO CUSTOMER SATISFACTION <br />