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laboratories <br /> Ground Zero Analysis, Inc <br /> 1714 Main Street Date Sampled 08127103 <br /> Escalon,CA 95320 08/28/03 <br /> Date Received 08/29/03 <br /> Prod ID 186 TPH-g 1 BTX&E Date Analyzed 09/03103 <br /> Site Knowles Roek <br /> Method 8015B 18021 B <br /> Lab ID D08639 D08640 D08641 D08642 <br /> Sample ID KR MW-12 KR MW-13B KR MW-14 KR MW-15A <br /> Matrix Water Water Water Water <br /> Total Petroleum Hydrocarbons <br /> @ Gasoline <50 180,000 34,000 <50 <br /> Benzene <05 8,000 11,000 <0 5 <br /> Toluene <0 5 25,000 45 <0 5 <br /> Xylenes <1 0 12,000 220 <1 0 <br /> Ethyl Benzene <0 5 2,300 150 <0 5 <br /> QMQC <br /> Surrogate Spike Recovery 81% 79% 84% 82% <br /> Tntivarotoluene <br /> Note Water samples are reported in ug/L sod and sludge samples in mg/Kg <br /> U <br /> Hiram Cueto <br /> Lab Director <br /> DNS Certification No 2359 <br /> 3037 Fifth St , Ceres, CA 95307 • Phone (209)581-9280 Fax (209)581-9282 <br />