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404 N Wiget Lane <br /> 4D <br /> Sequoia WWnutCre*CA 94598 <br /> Analytical (925)988-9600 <br /> FAX(916)988-9673 <br /> www se uoialabs can <br /> !RRyan,Inc -Dublin Project Unocal <br /> ierra Court Suite J Project Number Unocal#2859 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 07-Dec-01 08 14 <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-13(W111332-13)Water Sampled 17-Nov-010905 Received 20-Nov-01 12 15 <br /> Purgeable Hydrocarbons(C6-C12) ND 50 ug/l 1 1K27002 30-Nov-01 30-Nov-01 EPA <br /> 8015M/8021 <br /> Benzene ND 0 50 " <br /> Toluene 15 050 " <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) 2 7 050 " <br /> Methyl tert-butyl ether(MTBE) ND 2 5 " <br /> Surrogate a,a,a-Trifluorotoluene 107% 70-130 " <br /> MW-14(W111332-14)Water Sampled 17-Nov-01 10 00 Received 20-Nov-01 12 15 <br /> Purgeable Hydrocarbons(C6-C12) ND 50 ug/l 1 1K20001 21-Nov-01 21-Nov-01 EPA <br /> 8015M/8021 <br /> Benzene ND 050 " <br /> Toluene 12 050 <br /> Ethylbenzene ND 050 •' <br /> Wl <br /> s(total) 1.3 050 <br /> tent-butyl ether(MTBE) ND 2 5 " <br /> Surrogate a,a,a-Tnfluorotoluene 116916 70-130 " <br /> MW-1 5(W111332-15)Water Sampled 17-Nov-01 12 30 Received 20-Nov-01 12.15 <br /> Purgeable Hydrocarbons(C6-C12) 1900 1000 ugll 20 1K20001 21-Nov-01 21-Nov-01 EPA <br /> 8015M/8021 <br /> Benzene ND 10 " <br /> Toluene ND 10 " <br /> Ethylbenzene 220 10 " <br /> Xylenes(total) 290 10 <br /> Methyl tert-butyl ether(MTBE) 57 SO <br /> Surrogate a,a,a-Trifluorotoluene 116% 70-130 " <br /> is 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 /> 6 of 19 <br />