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T - - <br /> 404 N Wtget lane <br /> 4 1 4D Sequoia Walnut Creek CA 94598 <br /> (925)988-9600 <br /> FAX(925}988-9673 <br /> I&V Analytical www sequoialabscom <br /> Gettler Ryan,Inc -Dublin Project Chevron <br /> 6747 Sierra Court Suite J Project Number Chevron#9-4275 Reported <br /> Dubhn CA,94568 Project Manager Deanna L Harding 06-Jul-00 07 36 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT - Quality Control <br /> Sequoia Analytical - San Carlos <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Lumt Units Level Result %REC Lmuts RPD Lima Notes <br /> Batch 0060111-EPA 5030B [PIT] <br /> Blank(0060111-BLK1) Prepared&Analyzed 26-Jun-00 <br /> Purgeable Hydrocarbons as Gasolnte ND 50 0 ug/I <br /> Benzene ND 0 500 " <br /> Toluene ND 0 500 " <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total)_ ND 0 500 <br /> TMethyl tut-butyl ether) W -- _ — --—--- - NI) M -- 500 _ _ „— — -- --. _ �--- ------r .—�— -- -- ------- —-- - <br />=Surrogaie qa,a-Tnfluoroiolue>re 976` "-100 976 700-130 <br />--LCS @06011 FW1)-- --Prepared&Analyzed 26-Jun-00 — <br />�Benaene 974 0 500 ug/1 too 974 700-130 <br /> Toluene 9 00 0 500 100 900 70 0-130 <br /> Ethylbenzene 896 0 500 100 896 700-130 <br /> Xylenes(total) 272 0 500 300 907 700-130 <br /> Surrogate i;a,a-Tnfluorotoluene 100 100 100 700-130 <br /> LCS(0060111-BS2) Prepared&Analyzed 26-Jun-00 <br /> Purgeable Hydrocarbons as Gasoline 237 50 0 ug/l 250 948 700-130 <br /> Surrogate 44a-Tnfluorotoluene 102 100 101 700-130 <br /> Matrix Spike(0060111-MSI) Source W006393-05 Prepared&Analyzed 26-Jun-00 <br /> Benzene 126 0 500 ug/l too ND 126 600-140 <br /> Toluene 10 8 0 500 too ND 108 600-140 <br /> Mylbe=ne 110 0 500 100 ND 110 600-140 <br /> Xylenes(total) 33 0 0 500 " 300 ND 110 600-140 <br /> Surrogate 4zdza-TnJh#orotohtem 111 _ 100 112 MO-130 <br /> Matrix Spike Dup (0060111-MSD1) Source W006393-05 Prepared&Analyzed.26-Jun-00 <br /> Benzene 123 0 500 ng/l 100 ND 123 600-140 241 250 <br /> Toles 106 0 500 100 ND 106 600-140 187 250 <br /> Ethylbenzene 107 0 500 100 ND 107 600-140 276 250 <br /> Xylenes(total) 326 0 500 300 ND 109 600-140 0 913 250 <br /> Surrogate 4 a a-Tnfluorololuene 109 100 109 700-130 <br /> Sequoia Analytical-Walnut Creek The results rn dus report apply to the samples analyzed in accordance with the charm o <br /> custody document. This analytical report must be reproduced in its enft* <br /> Page 6 of 9 <br />