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1551 Industrial Road <br /> can catlos CA 94070-41 11 <br /> 1 Sequoia Fnx(650)232-9600 <br /> c6507 z32-961 z <br /> A www sequolalabs com <br /> Analytical <br /> Gelder-Ryan/Geostrategtes(1) Project Tosco{5}ZZ <br /> Pro�eot Niunber Tom�notal)SS#6981 �°C� <br /> 5747 Sierra Court,Suite J 01/11/01 13 54 <br /> Dublin CA,94568 Project Manager Deanna Herding <br /> Total Purgeable Hydrocarbons (C&C12),BTEX and MTBE by DHS LUF'T -Quality Control <br /> Sequoia Analytical-San Carlos <br /> lteporun8 <br /> Spike S== 6/"REC RPD <br /> 11 <br /> Analyte <br /> Res& Lmt Units Level Result OAREC Limits RPD Tamm ° <br /> Batch 1010021-EPA 5030B(P <br /> Prepared 8c Analyzed 0110510 <br /> Bleak(1010021-BLK1) <br /> Purgeable Hydrocarbons as Gasoline ND 50 0 ug/1 <br /> ND 0 500 <br /> Benzene „ <br /> ND 0 500 <br /> Toluene " <br /> ND 0 500 <br /> Ethylbcatzxae <br /> (total) ND 0 500 <br /> Xylenes " <br /> Methyl cert-butyl ether ND 5 DD " <br /> Surrogate as a-Trifluorotoluene <br /> 962 100 46 4 70-130 <br /> prepared&Analyzed 01/05/01 <br /> 8 <br /> LCS(1010021-BS1) <br /> Benzene 10 0 85 9 70-130 <br /> 59 0 500 ug/l <br /> 798 0 500 100 <br /> 79 8 70-130 <br /> E ° " 10 0 809 70-130 <br /> e g Og 0 500 803 70-130 <br /> Xylenes(total) 24! 0 S00 30 0 <br /> Surrogate aa,a-Tnfluorotoluene 964 " 10 0 96 4 70-130 <br /> prepared&Analyzed auosrol <br /> LCS(1010021-BS2) 0 972 70-130 <br /> PwVmble Hydrocarbons as Gasoline 243 50 0 ug/1 <br /> �09 " PO p 909 70-130 <br /> Surrogate aaa-Witorotolue e <br /> Source L012219-10 Prepared 01/05/01 Analyzed-01/06/01 <br /> Matrix Spike(1010021-MSI) 500 USA 250 ND 103 60-140 <br /> Pnsgeable Hydrocarbons as Gasoline 258 <br /> ,Surrogate aaa-7lnfluorotoluene <br /> 893 " 10 0 89 3 70-130 <br /> Sonrce.LO1Z219-10 Prepared 01/05/01 Analyzed 01/06/01 <br /> Matrix S ike Du (1010021-MSD1) 50 0 UFA 250 ND --- 60.140 230 25 <br /> purgeable Hydrocarbons as Gasoline 264 " <br /> 9 04 100 904 70-130 <br /> ,Surrogate a a a-TrI luorotoluene <br /> e[ltlpla AnatytlCat-San Carlos The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document Thus analytical report must be reproduced In its entirety <br /> Page 18 of 27 <br />