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1551 Industrial Road <br /> ` Sequoia San Carlos CA 94070-4111 <br /> (650) 232-9600 <br /> Analytical FAX(650) 232-9612 <br /> Gettler-Ryan/Geostrategies(l) Project Tosco(5) Sampled 1/31/00 <br /> 6747 Sierra Court,Suite D Project Number Pacific Ave Received 1/31/00 <br /> I <br /> Dublin,CA 94568 Project Manager Steve Carter Reported 213/00 <br /> Total Purgeable Hydrocarbons(C6-C12),BTEX and MTBE by DHS LUFT/Quality Control <br /> Sequoia Analytical-San Carlos <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch 0020001 Date Prepared 211/00 Extraction Method EPA 5030B IP/Tl <br /> Blank 0020001-BLKI <br /> Purgeable Hydrocarbons as Gasoline 2/l/00 ND ug/1 500 <br /> Benzene ND 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 <br /> Methyl tert-butyl ether ND 500 <br /> Surrogate a,a,a-Trifluoiotoluene 100 8 79 700-130 879 <br /> LCS 0020001-BSI <br /> Benzene 2/1100 100 9 85 ug/l 700-130 985 <br /> Toluene 100 9 12 700-130 912 <br /> Ethylbenzene 100 933 700-130 933 <br /> lenes(total) _ 300 28 3_ _ 700-130 943 _ <br /> WOOte a,a a-Trrfluorotoluene " 100 8 82 70 0-130 88 2 <br /> LCS 0020001-BS2 <br /> Purgeable Hydrocarbons as Gasoline 2/l/00 250 �T 213 ug/l 700-130 852 <br /> Surrogate a a,a-Trifluorotoluene 11100 9 95 700-130 995 <br /> Matrix Spike 0020001-MSI L001205-13 <br /> Purgeable Hydrocarbons as Gasoline 2/l/00 250 ND 225 ug/l 600-140 900 <br /> Surrogate a a,a-Trifluorotoluene " 100 867 700-130 86 7 <br /> Matrix Spike Dup 0020001-MSD1 L001205-13 <br /> Purgeable Hydrocarbons as Gasoline 211/00 _ 250 ND 218 ug/l 600-140 872 250 3 16 <br /> Surrogate a,a a-Trifluorotoluene 100 851 of700-130 851 <br /> Tequoia Analytical-San Carlos *Refer to end of report for text of notes and definitions <br /> Page 5 of 6 <br />