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CAL TECH Environmental Laboratories <br /> 6814 Rosecrans Avenue. Paramount. CA 90 723-3 146 <br /> Telephone: (562) 272-2700 Fax: (562) 27 -2789 <br /> QA/QC Report <br /> Method: 6010 B/7470/7196 <br /> Matrix: Water <br /> Date Analyzed: 9/12/03 <br /> Units: ug/L <br /> r Perimeters Method LCS LCSD Spike LCS % LCSD% Limits RPD <br /> Blank_ Added Rea Rec. _ <br /> Antimony 0 2.087 1.958 2 104 98 70-130 6 <br /> Arsenic 0 2.048 1.883 2 102 94 70-130 8 <br /> Barium 0 1.966 1.86 2 98 93 70-130 5 <br /> Beryllium 0 0.796 0.781 1 80 78 70-130 2 <br /> Cadmium 0 1.059 0.949 1 106 95 70-130 10 <br /> Chromium 0 2.071 1.9 1 2 104 95 70-130 9 <br /> Cobalt 0 2.119 1.96 2 106 98 70-130 8 <br /> Copper 0 2.012 1.91 2 101 96 70-130 5 <br /> Lead 0 2.149 2.09 2 107 104 70-130 3 <br /> Mercury 0 0.236 0.221 0.25 94 88 1 70-130 6 <br /> Molybdenum 0 2.026 1.82 2 101 91 70-130 10 <br /> Nickle 0 2.152 1.92 2 108 96 70-130 11 <br /> Selenium 0 2.048 1.85 2 102 92 70-130 10 <br /> Silver 0 0.429 0.408 0.5 86 82 70-130 4 <br /> Thallium 0 2.048 2.045 2 102 102 70-130 0 <br /> Vanadium 0 2.046 1.98 2 102 99 70-130 3 <br /> Zinc 0 2.132 1.95 2 107 1 98 70-130 8 <br /> Chromium VI 0 0.466 0.483 0.5 93 97 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 DEDICATED FOCI JSTOMER SATISFACTION <br />