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404 N Wiget Lane <br /> Walnut Creek,CA 94598 <br /> Sequoia (925)98&9600 <br /> 4FAX(925)988-%73 <br /> Analytical www sectuoialabs corn <br /> Gettler Ryan,Inc -Dublin Project Tosco <br /> 6747 Sierra Court Suite J Project Number Tosco# 11194 Reported <br /> Dublin CA,94568 Project Manager Doug Lee O1-Jun-Ol 18 16 <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 1E31003-EPA 5030B PIT <br /> Matnx Spike Dup (1E31003-MSD1) Source W105543-04 Prepared&Analyzed 31-May-Ol <br /> Benzene 226 0 50 ug11 200 ND 113 70-130 699 20 Q-01 <br /> Toluene 188 0 50 200 ND 940 70-130 101 20 <br /> Elhylbenzene 201 050 200 ND 100 70-130 161 20 <br /> Xylenes(total) 576 050 600 ND 960 70-130 926 20 <br /> Surrogate as a•Trifluorotoluene 330 300 110 70-130 <br /> • <br /> 11a Analytical-Walnut Creek The results in this report apply to the samples analyzed in accordance with the chain of <br /> u0custody document This analytical report must be reproduced in its entirely <br /> page 5 of 6 <br />