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Sequoia 15511nductnal,!Dlload <br /> San Carlos CA 94070 <br /> _ <br /> A n a lyli c a l 1650)232 9600 <br /> _ -- -_ FAX(050)212 9612 - <br /> uuu ccquolalab-corn <br /> Getiler-Ryan/Geostratemes(1} Project Tosco(I) <br /> 6747 Sierra Court Suite! Protect Number Tosco#5886,Stockton Reported <br /> Dublin CA 94568 <br /> Project Manager Deanna Harding 05/20/02 12 25 <br /> Total Purgeablee livdrocarbon_(C6uC]2)--b-,'EPA-80]5}19_and-BTEJ�/MTBE b��,EPA-8021B=Quality Control�— <br /> Sequoia Analvttcal - San Carlos <br /> Reponing Spike Source °oREC RPD <br /> [Anal-vie - Result Limn Unttc - I,eNel Result %REC Limits RPD Ltrntt Noiec <br /> Batch 2050036-EPA 5030B (P!T <br /> Blank(2050036--BLKl)-- ---- -- T -Prepared& Analyzed 05/16/02 --_ <br /> Purgeable Hvdrocarbons as Gasoltne ND 50 ug/3 <br /> Benzene ND 050 <br /> Toluene ND 050 <br /> Ethvlbenzene ND 050 <br /> X%lenes(total} ND 0 50 <br /> Methvl ten-bun I ether ND 5 0 <br /> Surrogate a a a Trifiuorotoluene !1 I 100 111 70 130 <br /> LCS(2050036-BSI) Prepared& Analyzed 05/16/02 <br /> Benzene 101 050 u Il 3 0 0 <br /> g ]O] 70-E10 <br /> Toluene 922 050 100 92�, 70 1 i0 <br /> Ethylbenzene 85.2 050 100 85 2 70 130 <br /> Xvlenes(total) 25 3 050 100 84 3 70-130 <br /> Surrogate a a a Trifiuorotoluene 11 i 100 113 70 13o <br /> LCS(2050036-BS2) Prepated& Analvzed 05/16/02 <br /> Purgeable Hvdrocarbons as Gasoline 278 50 ugIl 250 1 1 1 70-130 <br /> Surrogate a a a Trijluorotoluene I1 2 1 100 111 70 130 <br /> Matrix S the(2050036-MSI) _ Source L205012-18 Prepared& Analyzed 05/16/02 <br /> Benzene 118 050 ugll 100 ND 118 60-140 <br /> Toluene JOB 050 100 ND 108 60 140 <br /> Ethvlbenzene 987 050 100 ND 987 60-140 <br /> Xylenes(total) 293 050 300 ND 977 60-140 <br /> Surrogate a a a Trilluorotoluene 113 100 113 70-730 <br /> hlatna Spike Du (2050036-MSDI) Source L205012-18 Prepared& Analyzed 05/16/02 <br /> Benzene 9111 050 ug/l 100 IND 95 1 60 140 21 5 25 <br /> Toluene 8 58 050 100 ND 858 60-140 229 25 <br /> Ethvlbenzene 781 050 100 ND 783 60-140 23 1 25 <br /> Xylenes(total) 211 050 300 ND 770 60 140 23 7 25 <br /> Su rogaie a o a Trtfluoroioluene 110 100 110 70 130 <br /> Sequoia Analytical -San Carlos The results in this report apply to the samples analvFed in accordance with the charm <br /> custodi document This analvitcal report must be reproduced in its entirety <br /> Page 19 of 23 <br />