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(61 MOBILE CHEM LABS INC. <br /> 1678 Reliez Valley Road • Lafayette, CA 94549 <br /> Phone (925) 945-1266 • Fax (925) 943-6884 <br /> 800530\2162\014281 <br /> CH2M HILL <br /> 155 Grand Ave. , Suite 1000 <br /> Oakland, CA 94612 Date Sampled: 04-14-04 <br /> Attn: Diane Sarmiento Date Received: 04-14-04 <br /> Project Manager Date Analyzed: 04-14-04 <br /> Sample Number Sample Description <br /> PG&E Lathrop Remediation <br /> 5441 West Undine Rd. <br /> Project # 282984 . 01.SA <br /> B044010 90SW4-8 SOIL <br /> EPA METHOD 8260 <br /> BTEX & OXYGENATES <br /> Detection Limit Results Spike <br /> µg/kg µg/kg Recovery <br /> Benzene. . . . . . . . . . . . . . . . . . . . .<50. 0 . . . . . . . . . . .ND. . . . . . . . . <br /> Ethylbenzene. . . . . . . . . . . . . . . .<50. 0 . . . . . . . . . . .ND. . . . . . . . . <br /> Toluene. . . . . . . . . . . . . . . . . . . . .<50. 0 . . . . . . . . . . .ND. . . . . . . . . <br /> Total Xylenes. . . . . . . . . . . . . . .<50. 0 . . . . . . . . . . .ND. . . . . . . . . <br /> Gasoline. . . . . . . . . . . . . . . . . .<2500. 0 . . . . . . . . . . .ND. . . . . . . . . <br /> Note: Analysis was performed using EPA methods 5030 and 8260 <br /> ug/kg = ppb <br /> MOBILE CHEM LABS, INC. <br /> Ronald G. Evans <br /> Lab Director <br />