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Geiter-Ryan/Geosttategtes(1) Projem TOsc0(1) <br /> Project Number Tosco(Unocal)SS*6981 R� 01�`d <br /> 6747 Sterna Court,Suite] 07/12/0106 51 <br /> Dublin CA,94568 Pmject Ma-9- Deanna Harding <br /> Total Purgeable Hydrocarbon (C6-C12) by EPA 8015M and BTEX/MTBE by EPA 8020 -Quality Control <br /> Sequoia Analytical- San Carlos <br /> Rgxft g Spam swuce yRW RPD <br /> LAn*,�.. Result <br /> Lnml Uwu Levu Result '%.REC Ltmrts RPD Lmul Nem <br /> Batch 1070031 -EPA 5030B <br /> Blank(1070031-BLK1) Prepared&Analyzed 07/09/01 <br /> Purgeable Hydrocarbons as Gasoline ND 50 119/1 <br /> Benzene ND 0 50 " <br /> Toluene ND 0 50 " <br /> Bthylbenzene ND 050 " <br /> Xylenes(total) ND 050 " <br /> Methyl tert-butyl ether ND 50 " <br /> Surrogate a,a,a-Tnfluorotoluene <br /> 100 <br /> !0 0 100 70-130 <br /> LCS(1070031-BS1) Prepared&Analyzed 07/09/01 <br /> 843 050 1194 100 843 70-130 <br /> , e <br /> 806 050 100 806 70-130 <br /> �ne <br /> 803 050 100 803 70-130 <br /> Ethylbenzene 238 050 300 793 70-130 <br /> Xylenes(total) <br /> Surrogate a,a,a-Wuorotoluene <br /> 919 !0 0 919 70-130 <br /> Prepared&Analyzed 07/09/01 <br /> LCS(1070031-BS2) 250 102 70-130 <br /> Purgeable Hydrocarbons as Gasoline 256 50 ug/1 <br /> Surrogate a a,a-Tnfluorotoluene <br /> 880 100 880 70-130 <br /> Matrix Spike(1070031-M$1) <br /> Source.L106216-03 Prepared&Analyzed 07/09/01 <br /> 804 050 119/1 too ND 804 60-140 <br /> Betuene " 100 ND 765 60-140 <br /> Toluene 7 65 0 50 <br /> 770 050 100 ND 770 60-140 <br /> Ethylbenzene " 300 ND 783 60-140 <br /> Xylenes(total) 23 5 0 50 <br /> Surrogate a,aa-Trfluorotoluene <br /> 841 10 0 84 1 70.130 <br /> 1070031-MSD1) Source 1106216-03 Prepared&Analyzed 07/09/01 <br /> Matrix Spike Dup( <br /> 747 050 119/1 10 0 ND 74 7 60-140 7 35 25 <br /> Bente <br /> 7 10 050 100 ND 710 60-140 746 25 <br /> Toluene " 100 ND 715 60-140 741 25 <br /> Ethylbcnzene 7 15 0 50 " <br /> 217 050 300 ND 723 60-140 796 25 <br /> Xylenes(total) <br /> 100 860 70-130 <br /> Surrogate a,a,a-Trtfluorotoluene <br /> 860 <br /> 0 - The results to this report apply to the samples analysed in accordance with the chain of <br /> Sequoia Analytical-San Carlos custodj,document Taus analytical report must be reproduced to Its entirety <br /> Page 14 of 22 <br />