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u <br /> Sequoia 404 N wlLane <br /> Walnut Creek CAA 94598 <br /> 1 4 (925)988-9600 <br /> 5)- Analytical FAX(925) 988-9673 <br /> wo <br /> Gettler Ryan,Inc -Dublin Project Unocal <br /> 6747 Sierra Court Suite J Project Number Unocal#2859 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 09-Mar-0010 29 <br /> Total Purgeable Hydrocarbons (C6-Cl2), BTEX and MTBE by DHS LUFT <br /> Sequoia Analytical -Walnut Creek <br /> Reporting <br /> Analyte Result L1t Units Dilution Batch Prepared Analyzed Method Notes <br /> 1m <br /> MW-9(WO02463-10)Water Sampled 17-Feb-0012 25 Received 17-Feb-00 19 20 <br /> Purgeable Hydrocarbons ND 50 ug/1 1 OB22001 22-Feb-00 22-Feb-00 EPA <br /> 8015M/8020 <br /> Benzene ND 050 <br /> Toluene 21 050 " <br /> Ethylbenzene ND 050 <br /> Xylenes (total) 18 050 <br /> Methyl tert-butyl ether 38 25 <br /> Surrogate a,a,a-Tnfluorotoluene 990% 70-130 " <br /> MW-10(W002463-11)Water Sampled 17-Feb-001640 Received 17-Feb-00 19 20 P-01 <br /> Purgeable Hydrocarbons 130000 20000 ug/1 400 OB24003 24-Feb-00 24-Feb-00 EPA <br /> 8015M/8020 <br /> Benzene 9700 200 <br /> Toluene 45000 200 " <br /> enzene 5100 200 " <br /> es(total) 26000 200 " <br /> Methyl tert-butyl ether ND 1000 <br /> Surrogate aa a-Tnfluorotoluene 920% 70-130 " <br /> NP-1 (W002463-12)Water Sampled 17-Feb-0015 35 Received 17-Feb-0019 20 P-01 <br /> Purgeable Hydrocarbons 260 50 ug/1 1 OB28001 29-Feb-00 28-Feb-00 EPA <br /> 8015M/8020 <br /> Benzene 3 5 050 " <br /> Toluene 2 3 050 " <br /> Ethylbenzene 15 0 50 " <br /> Xylenes(total) 92 050 " <br /> Methyl tert-butyl ether ND 2 5 <br /> Surrogate a,a,a-Tnfluorotoluene 105 % 70-130 " <br /> la Analytical-Walnut Creek The results in tins report apply to the samples analyzed in accordance with the chain of <br /> custody document. This analytical repos must be reproduced in its entirely <br /> Page 5of21 <br />