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1551 Industrial Road <br /> San mos,CA 94070-4111 <br /> Sequoia (650)?-32-%l2 <br /> 4(D fAX(650)2324612 <br /> Analytical www�11o�a��m <br /> Project. Toseo(5}ZZ <br /> cttler-Ryan/Geostrategtes(1) <br /> Cr <br /> Project er NumbTosco(Unocal)SS#6981 Reported <br /> 6747 Stara Court,Suite 7 01/11/01 13 54 <br /> Dublin CA,94568 Project Manager Deanna Harding <br /> Total Purgeable Hydrocarbons (C6-C12)9 BTEX and MTBE by DHS LUFT-Quality Control <br /> Sequoia Analytical- San Carlos <br /> inns Spike source %REC "D <br /> Analyte <br /> Result Lurut [huts Level Result IYOREC Limits RPD Linut Notes <br /> Batch 1010009-EPA 5030B <br /> Blank(1010009-BLKI) Prepared&Analyzed 01/03/01 <br /> Purgeable Hydrocarbons as Gasoline ND 500 ugn <br /> Benzene ND 0 500 <br /> Tohiene ND 0 500 " <br /> Ethylbenzene ND 0 500 " <br /> Xylem(total) ND 0 500 <br /> Methyl tert4yutyl ether ND 500 <br /> Surrogate a,a,a-Tnfluorotolriene <br /> 983 100 983 70-130 <br /> LCS(1010009-Bal) Prepared&Analyzed 01/03/01 <br /> g 23 0 500 119/1 100 923 70-130 <br /> Benzene 92 0 70-130 <br /> .P 920 0 500 100 <br /> 936 0 500 100 936 70-130 <br /> 28 2 0 500 300 940 70-130 <br /> Xylenes(total) IQ 0 103 70.130 <br /> Surrogate a,a,a-THfluorotoluene 103 <br /> LCS(1010009-BS2) Prepared&Analyzed 01/03/01 <br /> 1'urgeable Hydrocarbons as Gasoline <br /> 2$8 500 11911 250 103 70-130 <br /> 100 109 70-130 <br /> Surrogate aa a-TrlfTuorotoluene <br /> 109 <br /> Martz S ike(1010009-MSI) Source L012210-06 Prepared 01/03/01 Analyzed 01/04/01 <br /> purgeable Hydrocarbons as Gasoline 263 500 119/1 250 ND 105 60-140 <br /> Surrogate a,a,a-Thtfluorotoluene <br /> III 100 Ill 70-130 <br /> Matrix Spike Du (1010009-MSDI) <br /> Source L012210-06 Prepared 01/03/01 Analyzed 01/04/01 <br /> purgeabie Hydrocarbons as Gasoline 284 500 ug/l 250 ND 114 60-140 168 25 <br /> Surrogate a aa-Tnfluorotoiuene <br /> 115 100 115 70.130 <br /> Am 1101$Amlytleal-San Carlos 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 16 of 27 <br />