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Sequoia los,CA <br /> Road <br /> 41) San Carlos,CA 94U70-41!1 <br /> �„f Analytical (650 232-9600 <br /> FAX(650))232-9612 <br /> Gettler-Ryan/Geostrategies(1) Project Unocal(]) Sampled 6117/99 <br /> 6747 Sierra Court,Suite D Project Number Unocal SS#5098/JOB##280046 85 Received 6/18/99 <br /> Dublin,CA 94568 Pin ect Manager Deanna Harding Reported 6123199 <br /> w Total Purgeable Hydiocarbons(C6-C12),BTEX i id MTBE 6y-DHS LUFT/Quality Contra! <br /> Segaoia 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 9060116 Date Prepared- 6/21/99 Extraction Method EPA 5030E IPM <br /> Blank 9060116-BLKI <br /> Purgeable Hydrocarbons as Gasoline 6/2I/99 ND ug/l 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 Soo _ <br /> Surrogate aaa-Trtfluorotoluene 100 103 700-130 103 <br /> LCS 9060116-BSI <br /> Benzene 6121/99 100 930 ug/l 700-130 930 <br /> Toluene It 100 858 700-130 85 8 <br /> Ethylbenzene 100 967 700-130 96 7 <br /> Xylenes(total) - - 300 28 1 700-130 93_7 <br /> Surrogate aaa-Trrfluoratolue>re 100 9 74 700-130 974 20 <br /> Matrix Spike 9060116-ANSI <br /> Benzene 6122/99 9 15 ug/l 600-140 <br /> Toluene 8 97 600-140 <br /> Ethylbenzene 9 19 600-140 <br /> Xylenes(total) _ 288 60_0-140 <br /> Surrogate a,a a-Trzfluorotoluene Job ND 700-130 NR <br /> Matriv Spi+ke Dup 9060116-MSD1 <br /> Benzene 6/22/99 890 ug/I 600-140 25 0 <br /> Toluene 901 600-140 25 0 <br /> Ethylbenzene 933 600-140 25 0 <br /> Xylenes(total) _ __27_9_ _" _ 600-140 -- _ 25 0----- <br /> Surrogate <br /> __--Surrogate a a a-Trtfluorotoluene loo ND 700-130 NR <br /> Batch 9060121 Date Prepared 6/21/99 Extraction Method EPA 5030B [P/T( <br /> Blank 9060121-BLK1 <br /> Piworahle Rvrirocar-bons as Cacnlmr 6/91/99 HD moll 50 0 <br /> Benzene ND 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 <br /> Methyl tent_butyl ether ND 500 <br /> Surrogate a a a-Tnfluorotoluene 10 0 8 Y5 76-0-i3o 385 <br /> Sequoia Analytical-San Carlos *Refer to end of report for text of notes and defznztzons <br /> Page 6 of 8 <br /> 0711 <br />