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444 N 1M$et Lane <br /> Sequoia Walnut Geek,CA 94598 <br /> .' (925)988-9600 <br /> FAX(925)%8-%73 <br /> Analytical wwwseguolalae5eorn <br /> ttler Ryan,Inc -Dublin Project Unocal <br /> 6747 Sierra Court Suite J Project Number Unocal It 0187 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 22-Jun-00 07 41 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT <br /> Sequoia Analytical - Walnut Creek <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> U-11 (W006202-04)Water Sampled 07-Jun-00 00 00 Received 08-Jun-00 16 55 <br /> Purgeable Hydrocarbons ND 50 ugrl 1 OF19002 19-Jun-00 19-Jun-00 EPA <br /> 8015M/8020 <br /> Benzene ND 0 50 <br /> Toluene ND 0 50 <br /> Ethylbenzene ND 0 50 ^ ^ ^ <br /> Xylexies(total) ND 050 " <br /> Methyl tert-butyl ether ND 2 5 " <br /> Surrogate a,a,a-Tnfluorotoluene 953% 70-130 " <br /> U-12(30') (W006202-05)Water Sampled 07,1un-00 00 00 Received 08-fun-00 16 55 P-01 <br /> Purgeable Hydrocarbons 4.10 50 ug/1 1 OF19006 19-Jun-00 19-Jun-00 EPA <br /> 8015M/8020 <br /> Benzene 64 0 50 " <br /> Toluene 5 1 050 <br /> Ethylbenzene 4 5 050 " <br /> nes(total) 7 0 050 <br /> thyl tent-butyl ether 23 2 5 <br /> Surrogate a a a-Tnfluorotoluene 833 % 70-130 " <br /> 1J-12(114')(W006202-06)Water Sampled 07-Tun-00 00 00 Received 08-Jun-00 16 55 P-01 <br /> Purgeable Hydrocarbons 390 50 ug/1 1 OF19006 19-Jun-00 19-Jun-00 EPA <br /> 8015M/8020 <br /> Benz#-ne 58 0 50 " <br /> Toluene 5 1 050 <br /> Ethylbenzene 3 4 0 50 <br /> Xylenes (total) 69 0 50 ^ <br /> Methyl tert-butyl ether 16 2 5 " <br /> Surrogate a,a a-Tnfluorotoluene 92 7% 70-130 " <br /> u41a Analytical-Walnut Creek The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document.This analytical report must be reproduced in its entirety <br /> Page 3 of 12 <br />