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Sequoia 1551 Industrial Road <br /> 1 San Carlos,CA 94070-4111 <br /> mw Analytical (650) 232-9 <br /> FAX(650) 232-96 i 612 2 <br /> Blaine Tech Services Project Shell(1) Sampled 4/22/99 <br /> 1680 Rogers Avenue Project Number Shell 2575 Country Club Blvd ,Stockton Received 4/23199 <br /> San Jose,CA 95112 Project Manager Fran Thic Reported 5113/99 <br /> Total�Purgeable Hydrocarbons{+CG-C12},BTEC ind MTBE by DHS LUFT/QualiO Control-- — - <br /> s�__ Anorkal-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 9040158 Date Prepared 4/30/99 Extraction Method EPA 5030B [P/T1 <br /> Blank 9040158-BLK1 <br /> Purgeable Hydrocarbons as Gasoline 4/30/99 NO ug/! Soo <br /> Benzene 11NO 0 500 <br /> Toluene 10ND 0 500 <br /> Ethylbenzene toND 0 500 <br /> Xylenes(total) ofND 0 500 <br /> _Methyl tert-butyl ether It <br /> ND 500 <br /> Surrogate a,a,a-Trrfluorotoluene it10 0 110 700-130 110 <br /> LCS 9040158-BS 1 <br /> Benzene 4/30/99 100 959 ug/l 700-130 95 9 <br /> Toluene 100 941 " 700-130 941 <br /> Ethylbenzene 100 872 700-130 872 <br /> Xylenes(total) _ _ 300 293 700-130 977 <br /> Surrogate a,a,a-Triuorotoluene 100 992 700-130 992 <br /> Matrix Spike 9040158-MSI L904308-01 <br /> Benzene 4130199 too 3 70 13 9 ug/l 600-140 102 <br /> Toluene too 0 579 993 600-140 925 <br /> Ethylbenzene 100 157 25 2 600-140 950 <br /> Xylenes(total) 30-0�19 4 47-1� 60 0=140'923 <br /> -- -- ----- <br /> Surrogate a,a,a-Trzfluorotoluene 10 0 12 7 700-130 127 <br /> Matrix SRike Dap 9040158-MSD1 L904308-01 <br /> Benzene 4130/99 100 3 70 15 1 ug/1 600-140 114 250 111 <br /> Toluene too 0 579 998 600-140 940 250 161 <br /> Ethylbenzene 10 0 15 7 25 2 600-140 950 25 0 0 <br /> Xylenes(total) 300 19 4 462 600-140 893 25 0 330 <br /> Surrogate a a a-Trrfluorotoluene 100 129 700-130 129 <br /> Sequoia Analytical- San Carlos *Refer to end of report for text of notes and defrnitzo <br /> ls <br /> Page 4 of 6 <br />