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N.Wg <br /> Lane <br /> Sequoia Walnu�eek CA 94598 <br /> (925)988-9600 <br /> Analytical FAX(925)988-9673 <br /> Gettler Ryan,Inc.-Dublin Project: Unocal <br /> DRShnierra Court Suite 3 Project Number: Unocal 4 0788 Reported: <br /> CA,94568 Project Manager: Deanna L.Harding 05-Dec-99 09:44 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEK and MTBE by DHS LUFT <br /> Sequoia Analytical -Walnut Creek <br /> Rep <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> TB-LB(W911254-01)Water Sampled:08-Nov-99 00:00 Received:09-Nov-99 15:20 <br /> Purgeable Hydrocarbons ND 50 ug/i 1 9K13002 13-Nov-99 13-Nov-99 EPA <br /> Benzene ND 0,50 " " " " " 8015M/8020 <br /> Toluene 3.5 0.50 " <br /> Ethylbenzene 0.80 0.50 " <br /> Xvlenes(total) 2.1 0.50 " <br /> Methyl tert-butyl ether ND 2.5 " <br /> Surrogate:a,a,a-Trifluorotoluene 107% 70-I30 " <br /> U-1 (W911254-02)Water Sampled: 08-Nov-99 10:45 Received: 09-Nov-99 15:20 <br /> Purgeable Hydrocarbons ND 50 ug/l 1 W13002 13-Nov-99 13-Nov-99 EPA <br /> Benzene ND 0.50 " " 8015M/8020 <br /> Toluene ND 0.50 " <br /> Ethylbenzene ND 0.50 " <br /> Xylenes(total) ND 0.50 " <br /> Methyl tert-butyl ether 2.7 2.5 " <br /> Surrogate:a,a,a-Trifluoroioluene 107% 70-130 " <br /> 911254-03)Water Sampled: 08-Nov-99 10.55 Received: 09-Nov-99 15:20 <br /> Pt7feable Hydrocarbons ND 50 uOl 1 9K13002 13-Nov-99 13-Nov-99 EPA <br /> Benzene ND 0.50 " 8015M/8020 <br /> Toluene ND 0.50 " <br /> Ethylbenzene ND 0.50 " <br /> Xylenes(total) ND 0.50 " <br /> Methyl tert-butyl ether ND 2.5 " <br /> Surrogate:a,a,a-Trifluorotoluene 107% 70-130 " <br /> Sequoia Analytical-Walnut Creek The results in this reporrapply to the srnnples analyzed inaccordance with the ehrun of <br /> custody document.This analytical report must be reproduced in ns entirety. <br /> 7`r <br /> Julianne Pegley, Project MaDager Page 2 of 8 <br />