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404 N. Wiget Lane <br /> 1 Sequoia Walnut Creek. CA 94598 <br /> (925)988-9600 <br /> FAX(925)988-9673 <br /> Analytical www.sequoialabs.com <br /> �„� <br /> Gettler Ryan,Inc.-Dublin Project: Chevron <br /> 6747 Sierra Court Suite 7 Project Number: Chevron# 9-4275 Reported: <br /> Dublin CA,94568 Project Manager: Deanna L.Harding 15-Mar-01 10:45 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT <br /> Sequoia Analytical - Walnut Creep <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> TR-LB(W103066-01)Water Sampled: 02-Mar-Ol 00:00 Received: 02-Mar-01 16:05 <br /> Purgeable Hydrocarbons ND 50 ug/1 1 1C04003 03-Mar-OI 03-Mar-01 EPA <br /> 8015M/8020 <br /> Benzene ND 0.50 " <br /> Toluene ND 0.50 ^ <br /> Ethylbenzene ND 0.50 „ <br /> Xylenes(total) ND 0.50 „ <br />_.Methyltert-butyl-ether - --• - — ND 2.5-. -- -- - - <br /> - „ CC-3 ... <br /> Surrogate:a,a,a-Trifluorotoluene 102% 70-130 " <br /> Field Blank(W103066-02)Water Sampled: 02-Mar-01 00:00 Received: 02-MarAl 16:05 <br />=Purgeable.HydrocarbonS ND 50—ug/1 1 1004003=03-Mar-Ol=03=Mar=O1 EPA <br /> 8015M/8020 <br /> Benzene ND 0.50 ^ <br /> Toluene ND 0.50 <br /> Ethylbenzene ND 0.50 <br /> Xylenes(total) ND 0.50 " „ „ ^ • <br /> Methyl text-butyl ether ND 2.5 " « „ <br /> GG-3 <br /> Surrogate:a,a,a-Tnfluorotoluene 103% 70-130 <br /> MW-I (W103066-03)Water _Samp1ed:-02-Mar-01..11:19. Received. 027Mar-01.16:05 <br /> Purgeable Hydrocarbons ND 50 ug11 1 IC04003 03-Mar-01 03-Mar-OI EPA <br /> 8015M/8020 <br /> Benzene ND 0.50 " ^ <br /> Toluene ND 0.50 <br /> Ethylbenzene ND 0.50 <br /> Xylenes(total) ND 0.50 <br /> Surrogate:a,a,a-Tnfluorotoluene 104 % 70-130 <br /> Sequoia Analytical-Walnut Creek The results in this report apply to the samples analyzed in accordance with the chain <br /> custody document. This analytical report must be reproduced in its entire <br /> Page 2 of 14 <br />