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• <br /> Gettler-Ryan/Geostrategies(1) Project Tosco(i) <br /> 6747 Sierra Court,Suite J Project Number Tosco(Unocal)SS#6981 Reported <br /> Dublin CA,94568 -- - - Project Menager-Deanna Harding - -- -- - --03/22/01-13 <br /> -03/22/0113 29 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT-Quality Control <br /> Sequoia Analytical- San Carlos <br /> Reporting Spee Soiree %REC RPD <br /> Analyte Result Limit Units Level Result %aREC limits RPD Gmrt Notes <br /> Batch 1030064-EPA 5030B(p <br /> LCS(1030064-BSI) Prepared&Analyzed 03/20/01 <br /> Benzene 945 0 500 ug/l 100 945 70-130 <br /> Toluene 941 0 500 100 94 1 70-130 <br /> Ethylbenzene 949 0 500 100 949 70-130 <br /> xylenes(total) 288 0 500 300 960 70-130 <br /> Surrogate a,a,a-Tnfluorotoluene 100 " 100 100 70-130 <br /> LCS(1030064-BS2) Prepared&Analyzed 03/20/01 <br /> Purgeable Hydrocarbons as Gasohne Y 236 500 ug/I 250 %4 70-130 <br /> Surrogate a a a-Triuorotoluene 122 100 122 70-130 <br /> Matrix Spike(1030064-MSI) Source L103084-08 Prepared&Analyzed 03/20/01 <br /> Benzene 100 0 500 ug/1 100 ND 100 60-140 <br /> Toluene 973 0 500 100 ND 973 60-140 <br /> Ethylbcazene 989 0 500 100 ND 989 60-140 <br /> xylenes(total) 297 0 500 300 ND 990 60-140 <br /> Surrogate a,a,a-Trtuorotoluene 113 100 113 70-130 <br /> Matrix Spike Du (1030064-MSDI) Source L10308"8 Prepared&Analyzed 03/20/01 <br /> Benzene 999 0 500 ug/I 10 0 ND 999 60-140 0 100 25 <br /> Toluene 978 0 500 100 ND 978 60-140 0 513 25 <br /> Ethylbenzene 101 0 500 100 ND 101 60-140 210 25 <br /> Xylenes(total) 297 0 500 1. 300 ND 990 60-140 0 25 <br /> Surrogate a aa-Tnfluorotoluene 107 100 107 70-130 <br /> Sequoia Analytical-San Carlos ne results in this report apply to the samples analyzed in accordance with the char <br /> custody document This analytical report must be reproduced to its entirety <br /> Page 21 of 25 <br />