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f 484 N.Wlget Lane <br />/ 1 Walnut Creek,CA 94598 <br /> Sequoia (925)989-9600 <br /> FAX(925)988-9673 <br /> Analytical www.seq„olaL-dn.com <br /> Gettler Ryan,Inc.-Dublin Project Chevron <br /> 6747 Sierra Court Suite Y ProjoutNutaber: Chevron 49-0557 Reported: <br /> Dublin CA,94568 Project Manager: Deanna L.Harding 30-Aug-00 16:41 <br /> Total Purgeable Hydrocarbons (C&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-6(W008367-07)Water Sampled: 14-Aug-00 08:46 Received: 15-Aug-M 16:30 <br /> Purgeable Hydrocarbons ND 50 ug/1 1 OH24003 24-Aug-00 24-Aug-00 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 tert-butyl ether ND 2.5 <br /> Surrogate:a,a,a-TrifluorotoIuene 97.7% 70-130 " <br /> MW-7(W008367-08)Water Sampled: 14-Aug-4)0 09:58 Received: 15-Aug-00 16:30 P-01 <br /> Purgeable Hydrocarbons 1600 250 ug/l 5 01428002 28-Aug-00 29-Aug-00 EPA <br /> 8015M/8020 <br /> Benzene 98 2.5 <br /> Tol ene 5.4 2.5nzene 1 <br /> B 50 2.5 <br /> XYves(total) 53 2.5 " <br /> Methyl tort-butyl ether 22 13 " <br /> Surrogate:a,a,a-Trifluorotoluene 77.3% 70-130 <br /> MW-8(W008367-09)Water Sampled: 14-Aug-0010:27 Received: 15-Aug-00 16:30 <br /> Purgeable Hydrocarbons ND 50 ug/i 1 OR24003 24-Aug-00 24-Aug-00 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 tart-butyl ether ND 2.5 <br /> Surrogate:a ;a-Difluorotoluene 98.3% 70-130 " <br /> .� Analytical-Walnut Creek The results In d=mpmi apply to the�Ms arwAb led In amordanuw with the chain of <br /> custody dac mmi 7ws wa ylical report must be reproduced In Its enfiretY• <br /> Page 4 of 10 <br />