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Lane <br /> 4 Sequoia Walnut Creek CIA 94598 <br /> a- ) Analytical (925) 988-9600 <br /> FAX(925) 988-9673 <br /> ler Ryan,Inc -Dublin Project Tosco <br /> 6747 Sierra Court Suite J Project Number Tosco(Unocal)#6981 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 23-Nov-99 16 42 <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 /> MW-16(W910568-13)Water Sampled 25-Oct-99 16 50 Received 27-Oct-99 13 50 P-01 <br /> Purgeable Hydrocarbons 3100 1000 ug/1 20 9KO8001 08-Nov-99 09-Nov-99 EPA <br /> Benzene 55 10 8015M/8020 <br /> Toluene ND 10 <br /> Ethylbenzene 77 10 " <br /> Xylenes (total) 360 10 " <br /> Methyl tort-butyl ether 170 50 <br /> Surrogate a,a a-Trrfluorotoluene 933 % 70-130 " <br /> VW-1 (W910568-14)Water Sampled 26-Oct-99 10 40 Received 27-Oct-99 13 50 <br /> Purgedble Hydrocarbons ND 50 ug/l I 9KO5002 05-Nov-99 05-Lvov-99 EPA <br /> Benzene ND 050 " " 8015M/8020 <br /> 1 oluene ND 050 " <br /> EthAbenzene ND 050 " <br /> Xylene"(total) ND 050 " <br /> i A tert-butyl ether ND 25 " <br /> Sri ate a a a-Difluorotoluene 933 % 70-130 " <br /> VW-3 (W910568-15)Watcr Sampled 26-Opt-99 15 40 Received 27-Oct-99 13 50 <br /> Purgeable Hydrocarbons ND 250 ug/l 5 9KO5002 05-Nov-99 05-Nov-99 EPA <br /> Bc.nzenL 23 25 " " 80151x1/8020 <br /> roluene ND 2 5 " <br /> Ethylbenzene ND 25 " <br /> Xylene-,(total) ND 25 " <br /> Methyl tcrt-butyl ether 1100 13 " <br /> Suttogate a a a-Trrfluorotoluene 967% 70-130 " <br /> S a Analytical - Walnut Creek The results in lh v report apply to the smnples analyzed a n accordimce with the churn of <br /> cull ody document Tins analy1scal report must be reproducedanris enftrery <br /> Julior e Fegley, Froject'KanagerPage 6 of 19 <br />