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CALTECH Environmental Laboratories <br /> . 6814 Rosecians Avenue Paramount CA 90723-3146 <br /> O Telephone (562) 272-2700 Fax (562) 272-2789 <br /> 1 <br /> QA/QC Report <br /> I <br /> Method 8015M/8021 B <br />' Matnx Water <br />' Date Analyzed 1/22/05 <br /> Date Extracted 1/22/05 <br /> Perimeters Cone u /L Spike Recovery % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br />' Benzene 44 42 50 88 84 70-130 20 4 <br /> Toluene 43 43 50 86 86 70-130 20 0 <br /> Ethybenzene 47 45 50 94 90 70-130 20 4 <br />' X lenes 92 88 1 100 9288 70-130 20 4 <br /> TPH - Gasoline 1040 992 1000 104 99 70-130 1 20 5 <br />' LCS: Laboratory Control Standard <br /> LCS© Laboratory Control Standard Duplicate <br />' RPD Relative Percent Difference of LCS and LCSD <br />' Method Blank <br />' Perimeters Method Units Det <br /> Blank Limit <br /> MTBE ND ug/L 05 <br /> Benzene ND u /L 05 <br /> Toluene ND u /L 05 <br /> Eth benzene ND u /L 05 <br /> Xylenes ND u /L 1 <br /> TPH - Gasoline ND u /L 50 <br /> 0 <br /> I <br /> TOTALLY DEDICATED TO CUSTOMER SATISFACTION <br />