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Sequoia 1.551 Industrial Road <br /> San Carlos,CA 9.4070-41 1 I <br /> 4 (650)2.32-9600 <br /> FAX(650)232-9612 <br /> Analytical www sequolatabs com <br /> i <br /> Gettler-Ryan/Geostrategtes(1) Project Tosco(*ZZ <br /> 6747 Stara Court,Suite] Project Number Tosco(Unocal)SS#6981 Reported <br /> I)ublta CA;94568 - - - - = Project Manager-Deanna Harding - —_ _ = 01/11/01=13 54= <br /> Total Purgeable Hydrocarbons (C6-C12),BTEX and MTBE by DHS LUFT -Quality Control <br /> Sequoia Analytical-San Carlos <br /> Reporting Spice source %RW RPD <br /> ,cyte Rrsult Limit units Level Result %REC 11=ts RPD Limn Notes <br /> Batch 1010014-EPA 5030B(PIT) <br /> Blank(1010014-BLK1) Prepared&Analyzed 01/04/01 <br /> Purgeable Hydrocarbons as Gasoline ND 500 ug/1 <br /> Benzene ND 0 500 " <br /> Toluene ND 0 500 " <br /> Ethylbeazene ND 0 500 " <br /> Xylem(total) ND 0 500 " <br /> Methyl tert-butyl ether ND 500 " <br /> Surrogate a,a,a-Trifluorotoluene 106 100 106 70-130 <br /> LCS(1010014-BSI) Prepared&Analyzed 01/04/01 <br /> Benzene 907 0 500 ug/1 100 907 70-130 <br /> Toluene 901 0 500 too 901 70-130 <br /> Ethythenzene 919 0 500 too 919 70-130 . <br /> Xylenes(total) 276 0 500 300 920 70-130 <br /> Surrogate as a-7r fuorotoluene 100 100 100 70-130 <br /> LCS(1010014-BS2) Prepared&Analyzed 01/04/01 <br /> Purgeable Hydrocarbons as Gasoline 274 500 ug/1 250 110 70-130 <br /> Surrogate a,a,a-Tnfluorotaluene 108 100 108 70-130 <br /> Matrix Spike(1010014-MSI)- Source:L012210-18 Prepared 01/04/01 Analyzed 01/05/01 <br /> Benzene 994 0 500 ug/1 100 ND 994 60-140 <br /> Toluene 963 0 500 100 ND 963 60-140 <br /> Ethylbenzene 101 0 500 100 ND 101 60-140 <br /> xylem(total) 303 0 500 300 ND 101 60-140 <br /> Surrogate a,a,a-Tri luorotoluene 103 100 103 70-130 <br /> Matrix Spike Dup(1010014-MSDI) Source L012210-18 Prepared 01/04/01 Analyzed 01/05/01 <br /> Benzene — 970 0 500 Ile 100 ND 970 60-140 244 25 <br /> Toluene 9 64 0 500 too ND 964 60-140 0 104 25 <br /> Ethylbenzene 9 89 0 500 100 ND 989 60-140 2 10 25 <br /> Xylenes(total) 297 0 500 300 ND 990 60-140 200 25 <br /> Surrogate a a a-7Fifluorotoluene 102 100 102 70-130 <br /> Sequoia Analytical-Sari 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 17 of 27 <br />