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Sequoia CA 404 Lane <br /> Walnu[Creek CA 94598 <br /> 4 (925)988-9600 <br /> Analytical FAX equo alabs corn <br /> i <br /> Gettler Ryan,Inc -Dublin Project Tosco <br /> 6747 Sierra Court Suite J Project Number Tosco# 11192 Reported <br /> Dublin CA 94568 Project Manager Doug Lee 29-Aug-01 11 51 <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 11121002-EPA 5030B McOH <br /> Blank(11121002-BLKI) Prepared 21-Aug-01 Analyzed 22-Aug-01 <br /> Purgeable Hydrocarbons(C6-C12) ND 1 0 mg/kg <br /> Benzene ND 00050 " <br /> Toluene ND 00050 " <br /> Ethylbenzene ND 00050 " <br /> Xylenes(total) ND 00050 " <br /> Methyl tert-butyl ether(MTBE) ND 0 050 " <br /> Surrogate a a a-Trifluorwoluene 0 634 0 600 106 40-140 <br /> LCS(1H21002-BS1) Prepared 21-Aug-01 Analyzed 22-Aug-01 <br /> Benzene 0 792 00050 mg/kg 0 800 990 50-150 <br /> Toluene 0 830 00050 0 800 104 50-150 <br /> nes <br /> 0 868 00050 " 0 800 108 50-150 <br /> nes(total) 260 00050 240 108 50-150 <br /> Surrogate a a a-TrifJuorotoluene 0 820 0 600 137 40-140 <br /> Matrix Spike(11121002-MSI) Source W108198-19REIPrepared 21-Aug-01 Analyzed 22-Aug-01 <br /> Benzene 0 594 00050 mg/kg 0 800 ND 74 2 50-150 <br /> Toluene 0 632 00050 0 800 ND 790 50-150 <br /> Ethylbenzene 0 662 00050 0 800 ND 828 50-150 <br /> Xylenes(total) 200 00050 240 ND 83 3 50-150 <br /> Surrogate a a,a-Trifluorotaluene 0 440 0 600 73 3 40-140 <br /> Matrix Spike Dup(IH21002-MSD1) Source W 108198-19RE1 Prepared 21-Aug-01 Analyzed 22-Aug-01 <br /> Benzene 0 616 00050 mg/kg 0 800 ND 770 50-150 3 64 20 <br /> Toluene 0 656 00050 0 800 ND 820 50-150 3 73 20 <br /> Ethylbenzene 0 690 00050 0 800 ND 862 50-150 4 14 20 <br /> Xylenes(total) 207 00050 240 ND 862 50-150 3 44 20 <br /> Surrogate a a a-TrifJuorotoluene 0 454 0 600 75 7 40-140 <br /> oia 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 /> ,p Page 4 of 6 <br /> `icy <br />