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Gettler-Ryari/Geostratgpes(1) Projear. TOSCO(l) <br /> 6747 Sierra Court,Suite J Project Numbcr Former Unocal SS#4409 Re"1ftd <br /> Dublin CA,94568 P-J-1 M-9- Deanna Harding 07/23/0108 28 <br /> Total Purgeable Hydrocarbon (C6-C12) by EPA 8015M and BTEX/MTBE by EPA 8020 - Quality Control <br /> Sequoia Analytical- San Carlos <br /> Reportin spft sari= s.RaC RPD <br /> Read) Limit Una Lem Remit %REC IM RPD Lund Notes <br /> Batch 1070083-EPA 5030B(PPI) <br /> Blank(1070083-BLK1) Prepared&Analyzed M/18101 <br /> Purgeable Hydrocarbons as Gasoline ND 50 ug/t <br /> Benzene ND 030 ^ <br /> Tohrene ND 0 50 ^ <br /> Ethylbenzeae ND 0 50 " <br /> Xylenes(total) ND 050 " <br /> Methyl tett-butyl ether ND 50 <br /> Surrogate a aa-Tri luorotoluene 9 76 100 976 70-130 <br /> LCS(1070083-BS1) Prepared&Analyzed 07/18/01 <br /> Bye 7 77 050 ug/l 100 77 7 70-130 <br /> Tohrme 7 64 050 too 764 70-130 <br /> Ethylbenzene: 7 82 0 50 100 782 70-130 <br /> xylenes(tots!) 238 0 50 300 79 3 70-130 <br /> Surrogate aa a-TrnJluorotoluene 882 100 882 70-130 <br /> LCS(1070083-BS2) Prepared&Analyzed 07/18/01 <br /> Purgeable Hydrocarbons as Gasoline 229 50 ugf l 250 916 70-130 <br /> Surrogate a aa-Trifluorotoluene 9 81 100 982 70-130 <br /> Matrix Spike(1070083-MS1) Source L107074-04 Prepared&Analyzed 07/18/01 <br /> Purgeablc Hydrocarbons as Gasolme 252 50 ug4 250 ND 101 60-140 <br /> Surrogate aa a-71rjfluorotoluene 103 " 100 103 70-130 <br /> Matrix Spike Dup(1070083-M SDI) Source:L107074-04 Prepared&Analyzed 07/18/01 <br /> Purgeable Hydrocarbons as Gasoline 253 50 ug/1 250 ND 101 60-140 0 396 25 <br /> Surrogate a a a-Trifluorotoluene 9 70 " 100 970 70-130 <br /> Sequoia Analytical-San Carlos The results in this report apply to the samples analysed in accordance with the cha <br /> custody document This analytical report must be reproduced in its entirety <br /> Page 9 of 13 <br />