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Sequoia 404>v , CA Lane <br /> Walnut Creek, CA 94598 <br /> 4 ---_ +� (925) 988-9600 <br /> ,!D- Anayfica <br /> FAX(925) 988-9673 <br /> Gettler Ryan,Inc -Dublin Project Unocal <br /> 6747 Sierra Court Suite J Project Number Unocal# 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 Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> -TB-LB(W912007-01)Water Sampled_29-Nov-99 00 00 Received 30-Nov-99 19 05 <br /> Purgeable Hydrocarbons ND 50 ug/l 1 9LO6001 06-Dec-99 06-Dea99 EPA <br /> Benzene ND 050 " " " 8015M/8020 <br /> Toluene ND 050 <br /> Ethylbenzene ND 050 <br /> Xylenes(total) ND 050 " <br /> Methyl tert-butyl ether ND 2 5 " <br /> Surrogate a,o a-Tnfluorotoluene 103 % 70-130 " <br /> MW-1 (W912007-02)Water Sampled 30-Nov-99 12 16 Received 30-Nov-99 19 05 <br /> Purgeable Hydrocarbons ND 50 ug/I 1 9Lo6001 06-Dec-99 06-Dec-99 EPA <br /> Benzene ND 050 " " " " 8015M/8020 <br /> Toluene ND 050 " " " • <br /> Ethylbenzene ND 050 <br /> Xylenes(total) ND 050 <br /> Methyl tert-butyl ether 33 25 <br /> Surrogate a a a-Trifluorotoluene 100% 70-130 <br /> MW-2(W912007-03)Water Sampled 30-Nov-99 12 48 Received 30-Nov-99 19 05 <br /> Purgeable Hydrocarbons ND 1000 ug/1 20 9LO6003 06-Der,99 06-Dec-99 EPA <br /> Benzene ND 10 " " HOlSMl8020 <br /> Toluene ND 10 <br /> Ethylbenzene ND 10 <br /> Xylenes(total) ND 10 <br /> Surrogate a a a-Tnfluorotoluene 967% 70-130 " <br /> , <br /> Sequoia Analytical-Walnut Creek The results in the s report apply to the samples analyzed i n mcord=ce with the chin of <br /> custody document This analytical report most be mproduced to its entirety <br /> Tu a4sie �ey, anager Page 2 of 27 <br />