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i <br /> 1 <br /> aDW@i@ laboratories <br /> GROUND ZERO ANALYSIS, INC <br /> ' 1714 Main Street Date(s)Sampled 11/20100 <br /> Escalon,CA 95320 11/21/00 <br /> Date Received 11/22100 <br /> Prot ID 186 TPH-g 1 BTXBE Date Analyzed 11/29/00 <br /> Site Knowles Roek <br /> Method 8015M!8020A <br /> I 1 <br /> Lab ID A11291 A11292 A11293 Al 1294 <br /> Sample ID KR VW-1 KR VW-2 KR VW-3 KR VW4 <br /> Matrix Water Water Water Water <br /> ' Total Petroleum Hydrocarbons 260,000 19,000 2,400 3,500 <br /> @ Gasoline <br /> ' Benzene 22,000 46 110 77 <br /> Toluene 36,000 110 5 8 16 <br /> ' Xylenes 17,000 2,200 190 110 <br /> Ethyl Benzene 2,700 180 85 54 <br /> 1 <br /> i <br /> ' <br /> QA/QC <br /> Surrogate Spike Recovery 89% 87% 93% 88% <br /> water samples are reported in uglL,sod and sludge samples in mg1kg <br /> 1 <br /> Hiram Cueto <br /> ' Lab Director <br /> DHS CerbficaLon No 2359 <br /> 3037 R6 St, Ceres, CA 95307 0Phone (209) 581-9280 • Fax (209) 581-9282 <br />