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I <br /> r <br /> • Ground Zero Analysts <br /> 1714 Main Street <br /> Escalon,CA 95320 Date Sampled 08/27/02 <br /> Date Received 08127/02 <br /> Prol ID 186 TPH-9 l BTX&E Date Analyzed 08P28102 <br /> Site Knowles Roek <br /> Method 8015M 18020A <br /> Lab ID C08401 C08402 C08403 C08404 <br /> Sample ID KR MW-1 KR MW-2 KR MW-3 KR MW-4 <br /> Matrix Water Water Water Water <br /> Total Petroleum Hydrocarbons <br /> @ Gasoline 160 290 36,000 33,000 <br /> Benzene 2 0 20 12,000 7,500 <br /> Toluene <0 5 11 19 23 <br /> Xylenes 15 41 49 780 <br /> Ethyl Benzene 0 7 12 47 1,300 <br /> QA/QC <br /> Surrogate Spike Recovery 93% 93% 85% 88% <br /> Tnftuorotoluene <br /> Note Water samples are reported in pg/L sod and sludge samples in mg/kg <br /> U -' &'i <br /> Hiram Cueto <br /> Lab Director <br /> DHS Certification No 2359 <br /> 3037 FRfth St , Ceres, CA 95307 u Phone (209) 5819280 Fax (209) 5819282 <br /> 1 <br />