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ane <br /> Sequoia 404 N. get` <br /> Walnut Geek.,CA 9459988 <br /> (925)988-9600 <br /> Analytical FAX(925)988-9673 <br /> www.se:quolalabs.com <br /> Gettler Ryan,Inc.-Dublin Project: Chevron <br /> 6747 Sierra Court Suite J Project Number: Chevron#9-8264 Reported: <br /> Dublin CA,94568 Project Manager: Deanna L.Harding 15-Jun-00 11:50 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT- Quality Control <br /> Sequoia Analytical -Walnut Creek <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch OE30007-EEA 5030B [PIT] <br /> Blank(OE30007-BLKI) Prepared&Analyzed:27-May-00 <br /> Purgeable Hydrocarbons ND 50 ug/l <br /> Benzene ND 0.50 <br /> Toluene ND 0.50 " <br /> Ethylbenzene ND 0.50 " <br /> Xylenes(total) ND 0.50 " <br /> Methyl tent-butyl ether ND 2.5 " <br /> Surrogate:aaa-Trifluorotoluene 32.1 30.0 107 70.130 <br /> LCS(OE30007-BS1) Prepared&Analyzed:27-May-00 <br /> Benzene 20.2 0.50 ug/I 20.0 101 70-130 <br /> Toluene 20.6 0.50 20.0 103 70-130 <br /> c'I�ylbenzene 20.8 0.50 20.0 104 70-130 <br /> ;nes(total) 60.3 0.50 60.0 100 70-130 <br /> Surrogate:qaa-Trifluorotoluene 2&2 30.0 94.0 70-130 <br /> Metrix Spike(OE30007 MS1) Source:W005565-07 Prepared&Analyzed:27-May-00 <br /> Benzene 20.0 0.50 ug/I 20.0 ND 100 70-130 <br /> Toluene 20.4 0.50 20.0 ND 102 70-130 <br /> Ethylbenzene 19.9 0.50 " 20.0 ND 99.5 70-130 <br /> Xyl-es(total) 57.0 0.50 60.0 ND 95.0 70-130 <br /> Surrogate:qaa-T71fluorotaluene 27.5 30.0 91.7 70-130 <br /> Matrix Spike Dup(OE30007-MSD1) Source.W005565-07 Prepared&Analyzed:27-May-00 <br /> Benzene 18.1 0.50 ug/I 20.0 ND 90.5 70-130 9.97 20 <br /> Toluene 18.7 0.50 20.0 ND 93.5 70-130 8.70 20 <br /> Mylbenzene 20.2 0.50 20.0 ND 101 70-130 1.50 20 <br /> Xylenes(ictal) 5&2 0.50 60.0 ND 9"1.0 70-130 2.08 20 <br /> Surrogate:aga-Trifluorotoluene 28.5 30.0 95.0 70.130 <br /> ruoia Analytical-Walnut Creek The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document This analytical report must be reproduced in its entirety, <br /> Page 11 of 23 <br /> 7U <br />