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Sequoia Walnut404 <br /> N ig t Lane <br /> 598 <br /> (925)988-9600 <br /> Analytical (925)988-9673 <br /> www sequoialabs com <br /> Gettler Ryan,Inc -Dublin Protect Tosco <br /> 6747 Sierra Court Suite J Protect Number Tosco# 11193 <br /> Dublin CA,94568 Reported <br /> Protect Manager Doug Lee 14-Aug-01 07 22 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT - Quality Contras <br /> Sequoia Analytical - Walnut Creek <br /> Analyte Reporting Spike Source %REC RPD <br /> Result Lima Units Level Result %R$C Limits RPD Limit=Notes <br /> Batch 11410002-EPA 5030B PIT <br /> Blank(1H10002-BLKI) Prepared&Analyzed 10-Aug-01 <br /> Purgeable Hydrocarbons ND <br /> Benzene 50 ug/1 <br /> ND 0 50 " <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) ND 050 " <br /> Methyl tert-butyl ether ND 2 5 " <br /> Surrogate a a a-Tr�uorotoluene 19 2 <br /> 300 <br /> 973 70-130 <br /> LCS(11410002-8SI) Prepared&Analyzed 10-Aug-01 <br /> Benzene 17 7 050 ug/l 200 88 5-70-130 -- <br /> Toluene 186 050 200 93 0 70-130 <br /> thylbenzene 196 050 „ 200 98 0 70-130 <br /> lenes(total) 601 050 600 100 70-130 <br /> Surrogate a a,a-Tr�uororoluene <br /> 285 30095 95 0 70-130 <br /> quota Analytical - Walnut Creek The results rn this ort apply reP10 the samples analyzed to accordance with the chain of <br /> custody document This analytical report must be reproduced in its entirety <br /> Page 3 of 4 <br />