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CALTECH ECH Environmental Laboratories <br /> 6814 Rosecrans Aeenue, Paramount. CA 90723-3146 <br /> Telephone: (562) 272-2700 Fax: (562) <br /> QA/QC Report <br /> Method: 6010B17471 <br /> Matrix: Soil <br /> Date Analyzed: 8/11/03 <br /> Units: ug/Kg <br /> Perimeters Method LCS-1 LCSD-1 Spike LCS% LCSD% Limits RPD <br /> Blank Added Rec. Rec. <br /> lAntimony 1 0 2.41 2.36 2.5 96 94 70-130 7 <br /> Arsenic 0 2.39 2.41 2.5 96 96 70-130 5 <br /> Barium 0 2.29 225 2.5 92 90 70-130 4 <br /> Be !lium 1 0 0.906 0.901 1 91 90 70-130 5 <br /> Cadmium 1 0 1.23 1.23 1 123 123 70-130 5 <br /> Chromium 1 0 2.38 2.37 2.5 95 95 70-130 6 <br /> Cobalt 1 0 2.46 2.44 2.5 98 98 70-130 4 <br /> Copper 1 0 2.33 2.29 2.5 93 92 70-130 3 <br /> Lead 0 2.48 2.51 2.5 99 100 70-130 4 <br /> ]Mercury0 0.132 0.153 0.15 88 102 70-130 16 <br /> Molybdenum 0 2.32 2.31 2.5 93 92 70-130 5 <br /> Nickle 0 2.49 2.49 2.5 100 100 70-130 6 <br /> Selenium 0 2.37 2.36 2.5 95 94 70-130 4 <br /> Silver 0 0.491 0.487 0.5 98 97 70-130 6 <br /> Thallium 0 2.32 2.31 2.5 93 92 70-130 1 <br /> Vanadium 0 2.36 2.33 2.5 94 93 70-130 4 <br /> Zinc 0 2.54 2.53 2.51 102 101 70-130 4 <br /> LCS: Laboratory Control Standard <br /> LCSD- Laboratory Control Standard Duplicate <br /> RPD: Relative Percent Difference of LCS and LCSD <br /> TOTALLY 1)1-11)ICAFF1) TO CUSTOMER S:,Tl SFACTION <br />