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sequoia 404 N Lane <br /> Walnut GCA eek CA 94598 <br /> (925)988-9600 <br /> Analytical FAX equo alabs c 73 <br /> www sequnfalabs coin <br /> Gettler Ryan,Inc -Dublin Project Chevron <br /> 6747 Sierra Court Suite J Project Number Chevron# 9-2033 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 15-Jun-01 10 47 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT- Quality Control <br /> Sequoia Analytical -Walnut Creek <br /> u <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 1E25001 -EPA 5030B PIT <br /> Matrix Spike Dup (1E25001-MSDI) Source W105406-03 Prepared&Analyzed 25-May-01 <br /> Benzene 200 050 ug/I 200 ND 100 70-130 907 20 <br /> Toluene 195 050 200 ND 975 70-130 451 20 <br /> Ethylbenzene 197 0 50 200 ND 983 70-130 591 20 <br /> Xylenes(total) - 548 050 600 ND 91 3 70-130 670 20 <br /> Surrogate aaa-Tris luorotoluene 278 300 917 70-130 <br /> r <br /> Sequoia Analytical-Walnut Creek The results in this report apply to the samples analyzed in accordance with the chain <br /> custody document This analytical report must be reproduced in its entire <br /> Page 13 of 24 <br />