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t <br /> CALTECH Environmental Laboratories <br /> • 6814 Rosecrans Avenue Paramount CA 90723-3146 <br /> Telephone (562) 272-2700 Fax (562) 272-2789 <br /> QA/QC Report <br /> Method 8015M /8021 B <br /> Matrix Water <br /> Date Analyzed 7/21/04 <br /> Units ug/L <br /> Perimeters LSC LCSD Spike LCS% LCSD% Limits RPD <br /> Added Rec Rec <br /> Benzene 44 45 50 88 90 60-140 2 <br /> Toluene 44 45 50 88 90 60-140 2 <br /> Eth benzene 40 42 50 80 84 60-140 4 <br /> X lenes 130 1 133 1 150 1 87 1 89 1 60-140 1 2 <br /> TPH - Gasoline 1 955 1 982 1 1000 1 96 1 98 1 60-140 1 2 <br /> LCS Laboratory Control Standard <br /> LCSD Laboratory Control Standard Duplicate <br /> RPD Relative Percent Difference of LCS and LCSD <br /> TOTALLY DEDICATED TO CUSTOMER SATISFACTION <br />