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' 1551 Industrial Road <br /> Sequoia San Carlos,CA 94070-4111 <br /> (650) 232-9640 <br /> Analytical FAX(650) 232-9612 <br /> Gettler-Ryan/Geostategies Project: Tosco Sampled 4/10100 <br /> 5747 Sierra Court,Suite D Project Number Unocal SS#1205 Received. 4110/00 <br /> Dublin,CA 94568 Project Manager Deanna Hardin R rted. 4124100 <br /> iTl <br /> eabHyilsrb s � �1 ° _ ' <br /> Se a ?ia 'c�1a <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Lints % Limit % Notes* <br /> Batch 0040080 Date Prepared 4/17100 Extraction Method: EPA 5030B <br /> IPM <br /> Blank 0040080-BLKI <br /> Purgeable Hydrocarbons as Gasoline 4117/00 ND ugll 50.0 <br /> Benzene n ND " 0.500 <br /> Toluene ND 0 500 <br /> Ethylberame ND " 0.500 <br /> Xylenes(total) ND " 0.500 <br /> Methyl tent-butyl ether ND " 5.00 <br /> Surrogate a,a,a-Tnfluorotoluene 100 109 ff700-130 109 <br /> LCS 0040080-BSl <br /> Bene 4117/00 100 805 ug/l 700-130 805 <br /> Toluene 100 747 700-130 74 7 <br /> TgIffiocnzene " 10 0 745 700-130 745 <br /> (tat-dn 300 226 700-130 753 <br /> Surrogate a,a,a-Tnfluorotoluene 100 110 " 700-130 110 <br /> LCS 0040080-BS2 <br /> Purgeable Hydrocarbons as Gasoline 4/17100 250 212 u 700-130 848 <br /> Surrogate a,a,a-Tnfluorotoluene 100 102 N 700-130 101 <br /> Matrix Spike 0040080-MSI L004061-02 <br /> E2geable Hydrocarbons as Gasoline 4/17/00 250 ND 229 ugll 60 0-140 91.6 <br /> Surrogate a,a,a-Tnfluorotoluene " 100 950 700-130 950 <br /> Matrix Spike Dup 0040080-MSDI L004061-02 <br /> Pur eable Hydrocarbons as Gasoline 4117/00 250 ND 208 ug/1 60 0-140 83.2 25 0 9.61 <br /> Surrogate a,a,a-Tnfluorotoluene it100 998 700-130 998 <br /> Batch: 0040 87 Date Prepared- 4118100 Extraction Method- EPA 5030B <br /> IPM <br /> Blank 0040087-BLKI <br /> Purgeable Hydrocarbons as Gasolme 4118/00 ng/1 50.0 <br /> Benzene ND 0.500 <br /> Toluene ND " 0'SM <br /> Ethylbenzene ND 0.300 <br /> Xylenes(total) ND 0.500 <br /> Methyd tent-butyl ether 10 5.00 <br /> Surrogate a,a,a-Trifluorotoluene 100 100 700-130 100 <br /> 0040087-RSI <br /> e 4118/00 10 0 872 ug/1 700-130 872 <br /> e " <br /> 100 8 18 700-130 818 <br /> Sequoia Analytical-San Carlos *Refer to end of reportfor text of notes and defi►utions <br /> Page 7 of 11 <br />