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CALTECH Environmental Laboratories <br />' 6814 Rosecrans Avcnue Paran1c,unt C 4 90723-3146 <br /> O Telephone (502) 2 72-2 700 Fa\ (562) 272 2789 <br /> QA/QC Report <br />' Method <br /> 801 5 M/8021 B <br />' Matrix Water <br /> Date Analyzed 4/16/04 <br />' Units ug/L <br />' Perimeters .LSC fd-S01 Spike LCS % LCSD % Limits RPD <br /> Added Rec Rec <br />' Benzene 44 45 50 88 90 70-130 2 <br /> Toluene 46 49 50 92 98 70-130 6 <br /> Eth benzene 49 51 50 98 102 70-130 4 <br /> [Xylenes 148 152 150 99 101 70-130 2 <br /> TPH - Gasoline 1074 1109 1000 107 111 60-140 4 <br /> • LCS Laboratory Control Standard <br /> LCSD Laboratory Control Standard Duplicate <br /> RPD Relative Percent Difference of LCS and LCSD <br /> I <br /> I <br /> I <br /> ITo IALI Y DED[CAI F I) TO LISTUMER ' ATISFACTION <br />