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Sequoia 404 N Wiget Lane <br /> Walnut Creek CA 94598 <br /> Analytical FAX(925)988-963 <br /> Gettler Ryan,Inc -Dubhn Project Unocal <br /> 6747 Sierra Court Suite J Project Number Unocal 4 5886 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 16-Dec-99 09 01 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT <br /> Sequoia Analytical -Walnut Creek <br /> Reporting <br /> Analyte Result Linut Uruts Dilution Batch Prepared Analyzed Method Notes <br /> MW-2 (W912007-03RE1)Water Sampled 30-Nov-99 12 48 Received 30-Nov-99 19 05 <br /> Methyl tert-butyl ether 27000 500 ug/l 200 9LO6003 06 Deo-99 07-Deo-99 EPA <br /> Surrogate a,a a-Tnfluorotoluene 967% 70-130 " <br /> MW-3(W912007-04)Water Sampled 30-Nov-99 13 20 Received 30-Nov-99 19 05 <br /> Purgeable Hydrocarbons ND 500 ug/l 10 9106003 06-Dec-99 06-Deo-99 EPA <br /> Benzene ND 50 " " 8015MI8020 <br /> Toluene ND 50 <br /> Ethylbenzene ND so <br /> Xylenes(total) ND 5 0 <br /> Surrogate a,a,a-Trxfluorotoluene 933% 70-130 <br /> MW-3(W912007-04RE1)Water Sampled 30-Nov-99 13 20 Received 30-Nov-99 19 05 <br /> Methyl tert-butyl ether 16000 2500 ug/l 1000 9LO6003 06-Dec-99 07-Dec-99 EPA <br /> Surrogate a,a,a-Trtfluorotoluene 967% 70-130 <br /> -4D(W 912007-05)Water Sampled. 30-Nov-9910 40 Received 30-Nov-99 19 05 <br /> Purgeable Hydrocarbons ND 50 ug/l 1 9LA7002 07-Dec-99 07-Dec-99 EPA <br /> Benzene ND 050 It ++ „ 8015M/8020 <br /> Toluene 050 050 " " " <br /> Ethylbenzene ND 050 <br /> Xylenes(total) ND 050 " <br /> Methyl tett-butyl ether 48 25 <br /> Surrogate a,a,a-Trri luorotoluene 103 % 70-130 <br /> MW4S(W912007-06)Water Sampled 30-Nov-9910 13 Received 30-Nov-99 19 05 <br /> Purgeable Hydrocarbons ND 50 ug/1 I 9LO6003 06-Dec 99 06-Deo-99 EPA <br /> Benzene ND 050 " " 1, 8015M/8020 <br /> Toluene 25 050 <br /> Ethylbenzene ND 050 <br /> Xylenes(total) 20 050 " <br /> Methyl tent-butyl ether 12 25 <br /> Surrogate aa a-Trrfluorotoluene 933% 70-130 <br /> uoia Analytical-Walnut Creek The results in tins report apply to the samples analyzed i n accordance with the charn of <br /> custoc�,document This atnlyacal report must be reproduced to a is entirely <br /> u anne Fegley, Project Manager Page 3 of 27 <br />